1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
|
|
46 | # endif |
|
|
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
50 | # endif |
52 | # endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
66 | # endif |
65 | |
67 | |
66 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
79 | # endif |
81 | # endif |
80 | # endif |
82 | # endif |
81 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
85 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
88 | # endif |
100 | # endif |
89 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
105 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
109 | # endif |
105 | |
110 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
109 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
112 | # endif |
118 | # endif |
113 | |
119 | |
114 | # ifndef EV_USE_KQUEUE |
120 | # if HAVE_LINUX_AIO_ABI_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
121 | # ifndef EV_USE_LINUXAIO |
116 | # define EV_USE_KQUEUE 1 |
122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
117 | # else |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_LINUXAIO |
|
|
126 | # define EV_USE_LINUXAIO 0 |
120 | # endif |
127 | # endif |
121 | |
128 | |
|
|
129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
122 | # ifndef EV_USE_PORT |
130 | # ifndef EV_USE_IOURING |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
124 | # define EV_USE_PORT 1 |
|
|
125 | # else |
|
|
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
132 | # endif |
128 | # endif |
|
|
129 | |
|
|
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
132 | # define EV_USE_INOTIFY 1 |
|
|
133 | # else |
133 | # else |
|
|
134 | # undef EV_USE_IOURING |
134 | # define EV_USE_INOTIFY 0 |
135 | # define EV_USE_IOURING 0 |
135 | # endif |
|
|
136 | # endif |
|
|
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
|
|
146 | # ifndef EV_USE_EVENTFD |
|
|
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
|
|
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
|
|
152 | # endif |
136 | # endif |
153 | |
137 | |
|
|
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
|
|
139 | # ifndef EV_USE_KQUEUE |
|
|
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
|
|
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_KQUEUE |
|
|
144 | # define EV_USE_KQUEUE 0 |
154 | #endif |
145 | # endif |
|
|
146 | |
|
|
147 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
148 | # ifndef EV_USE_PORT |
|
|
149 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
|
|
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_PORT |
|
|
153 | # define EV_USE_PORT 0 |
|
|
154 | # endif |
155 | |
155 | |
156 | #include <math.h> |
156 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
157 | # ifndef EV_USE_INOTIFY |
|
|
158 | # define EV_USE_INOTIFY EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_INOTIFY |
|
|
162 | # define EV_USE_INOTIFY 0 |
|
|
163 | # endif |
|
|
164 | |
|
|
165 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
166 | # ifndef EV_USE_SIGNALFD |
|
|
167 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
168 | # endif |
|
|
169 | # else |
|
|
170 | # undef EV_USE_SIGNALFD |
|
|
171 | # define EV_USE_SIGNALFD 0 |
|
|
172 | # endif |
|
|
173 | |
|
|
174 | # if HAVE_EVENTFD |
|
|
175 | # ifndef EV_USE_EVENTFD |
|
|
176 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
177 | # endif |
|
|
178 | # else |
|
|
179 | # undef EV_USE_EVENTFD |
|
|
180 | # define EV_USE_EVENTFD 0 |
|
|
181 | # endif |
|
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182 | |
|
|
183 | #endif |
|
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184 | |
|
|
185 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
186 | * a limit of 1024 into their select. Where people have brains, |
|
|
187 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
188 | * ordered to have a vacuum, or they do anything for money. |
|
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189 | * This might help. Or not. |
|
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190 | * Note that this must be defined early, as other include files |
|
|
191 | * will rely on this define as well. |
|
|
192 | */ |
|
|
193 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
194 | |
157 | #include <stdlib.h> |
195 | #include <stdlib.h> |
|
|
196 | #include <string.h> |
158 | #include <fcntl.h> |
197 | #include <fcntl.h> |
159 | #include <stddef.h> |
198 | #include <stddef.h> |
160 | |
199 | |
161 | #include <stdio.h> |
200 | #include <stdio.h> |
162 | |
201 | |
163 | #include <assert.h> |
202 | #include <assert.h> |
164 | #include <errno.h> |
203 | #include <errno.h> |
165 | #include <sys/types.h> |
204 | #include <sys/types.h> |
166 | #include <time.h> |
205 | #include <time.h> |
|
|
206 | #include <limits.h> |
167 | |
207 | |
168 | #include <signal.h> |
208 | #include <signal.h> |
169 | |
209 | |
170 | #ifdef EV_H |
210 | #ifdef EV_H |
171 | # include EV_H |
211 | # include EV_H |
172 | #else |
212 | #else |
173 | # include "ev.h" |
213 | # include "ev.h" |
|
|
214 | #endif |
|
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215 | |
|
|
216 | #if EV_NO_THREADS |
|
|
217 | # undef EV_NO_SMP |
|
|
218 | # define EV_NO_SMP 1 |
|
|
219 | # undef ECB_NO_THREADS |
|
|
220 | # define ECB_NO_THREADS 1 |
|
|
221 | #endif |
|
|
222 | #if EV_NO_SMP |
|
|
223 | # undef EV_NO_SMP |
|
|
224 | # define ECB_NO_SMP 1 |
174 | #endif |
225 | #endif |
175 | |
226 | |
176 | #ifndef _WIN32 |
227 | #ifndef _WIN32 |
177 | # include <sys/time.h> |
228 | # include <sys/time.h> |
178 | # include <sys/wait.h> |
229 | # include <sys/wait.h> |
179 | # include <unistd.h> |
230 | # include <unistd.h> |
180 | #else |
231 | #else |
181 | # include <io.h> |
232 | # include <io.h> |
182 | # define WIN32_LEAN_AND_MEAN |
233 | # define WIN32_LEAN_AND_MEAN |
|
|
234 | # include <winsock2.h> |
183 | # include <windows.h> |
235 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
236 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
237 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
238 | # endif |
|
|
239 | # undef EV_AVOID_STDIO |
187 | #endif |
240 | #endif |
188 | |
241 | |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
242 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | |
243 | |
191 | /* try to deduce the maximum number of signals on this platform */ |
244 | /* try to deduce the maximum number of signals on this platform */ |
192 | #if defined (EV_NSIG) |
245 | #if defined EV_NSIG |
193 | /* use what's provided */ |
246 | /* use what's provided */ |
194 | #elif defined (NSIG) |
247 | #elif defined NSIG |
195 | # define EV_NSIG (NSIG) |
248 | # define EV_NSIG (NSIG) |
196 | #elif defined(_NSIG) |
249 | #elif defined _NSIG |
197 | # define EV_NSIG (_NSIG) |
250 | # define EV_NSIG (_NSIG) |
198 | #elif defined (SIGMAX) |
251 | #elif defined SIGMAX |
199 | # define EV_NSIG (SIGMAX+1) |
252 | # define EV_NSIG (SIGMAX+1) |
200 | #elif defined (SIG_MAX) |
253 | #elif defined SIG_MAX |
201 | # define EV_NSIG (SIG_MAX+1) |
254 | # define EV_NSIG (SIG_MAX+1) |
202 | #elif defined (_SIG_MAX) |
255 | #elif defined _SIG_MAX |
203 | # define EV_NSIG (_SIG_MAX+1) |
256 | # define EV_NSIG (_SIG_MAX+1) |
204 | #elif defined (MAXSIG) |
257 | #elif defined MAXSIG |
205 | # define EV_NSIG (MAXSIG+1) |
258 | # define EV_NSIG (MAXSIG+1) |
206 | #elif defined (MAX_SIG) |
259 | #elif defined MAX_SIG |
207 | # define EV_NSIG (MAX_SIG+1) |
260 | # define EV_NSIG (MAX_SIG+1) |
208 | #elif defined (SIGARRAYSIZE) |
261 | #elif defined SIGARRAYSIZE |
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
262 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
210 | #elif defined (_sys_nsig) |
263 | #elif defined _sys_nsig |
211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
264 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
212 | #else |
265 | #else |
213 | # error "unable to find value for NSIG, please report" |
266 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
214 | /* to make it compile regardless, just remove the above line */ |
267 | #endif |
215 | # define EV_NSIG 65 |
268 | |
|
|
269 | #ifndef EV_USE_FLOOR |
|
|
270 | # define EV_USE_FLOOR 0 |
216 | #endif |
271 | #endif |
217 | |
272 | |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
273 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | # if __linux && __GLIBC__ >= 2 |
274 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
275 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
221 | # else |
276 | # else |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
277 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # endif |
278 | # endif |
224 | #endif |
279 | #endif |
225 | |
280 | |
|
|
281 | #if !(_POSIX_TIMERS > 0) |
|
|
282 | # ifndef EV_USE_MONOTONIC |
|
|
283 | # define EV_USE_MONOTONIC 0 |
|
|
284 | # endif |
|
|
285 | # ifndef EV_USE_REALTIME |
|
|
286 | # define EV_USE_REALTIME 0 |
|
|
287 | # endif |
|
|
288 | #endif |
|
|
289 | |
226 | #ifndef EV_USE_MONOTONIC |
290 | #ifndef EV_USE_MONOTONIC |
227 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
291 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
228 | # define EV_USE_MONOTONIC 1 |
292 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
229 | # else |
293 | # else |
230 | # define EV_USE_MONOTONIC 0 |
294 | # define EV_USE_MONOTONIC 0 |
231 | # endif |
295 | # endif |
232 | #endif |
296 | #endif |
233 | |
297 | |
… | |
… | |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
299 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
236 | #endif |
300 | #endif |
237 | |
301 | |
238 | #ifndef EV_USE_NANOSLEEP |
302 | #ifndef EV_USE_NANOSLEEP |
239 | # if _POSIX_C_SOURCE >= 199309L |
303 | # if _POSIX_C_SOURCE >= 199309L |
240 | # define EV_USE_NANOSLEEP 1 |
304 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
241 | # else |
305 | # else |
242 | # define EV_USE_NANOSLEEP 0 |
306 | # define EV_USE_NANOSLEEP 0 |
243 | # endif |
307 | # endif |
244 | #endif |
308 | #endif |
245 | |
309 | |
246 | #ifndef EV_USE_SELECT |
310 | #ifndef EV_USE_SELECT |
247 | # define EV_USE_SELECT 1 |
311 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
248 | #endif |
312 | #endif |
249 | |
313 | |
250 | #ifndef EV_USE_POLL |
314 | #ifndef EV_USE_POLL |
251 | # ifdef _WIN32 |
315 | # ifdef _WIN32 |
252 | # define EV_USE_POLL 0 |
316 | # define EV_USE_POLL 0 |
253 | # else |
317 | # else |
254 | # define EV_USE_POLL 1 |
318 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
255 | # endif |
319 | # endif |
256 | #endif |
320 | #endif |
257 | |
321 | |
258 | #ifndef EV_USE_EPOLL |
322 | #ifndef EV_USE_EPOLL |
259 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
323 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
260 | # define EV_USE_EPOLL 1 |
324 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
261 | # else |
325 | # else |
262 | # define EV_USE_EPOLL 0 |
326 | # define EV_USE_EPOLL 0 |
263 | # endif |
327 | # endif |
264 | #endif |
328 | #endif |
265 | |
329 | |
… | |
… | |
269 | |
333 | |
270 | #ifndef EV_USE_PORT |
334 | #ifndef EV_USE_PORT |
271 | # define EV_USE_PORT 0 |
335 | # define EV_USE_PORT 0 |
272 | #endif |
336 | #endif |
273 | |
337 | |
|
|
338 | #ifndef EV_USE_LINUXAIO |
|
|
339 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
340 | # define EV_USE_LINUXAIO 1 |
|
|
341 | # else |
|
|
342 | # define EV_USE_LINUXAIO 0 |
|
|
343 | # endif |
|
|
344 | #endif |
|
|
345 | |
|
|
346 | #ifndef EV_USE_IOURING |
|
|
347 | # if __linux /* later checks might disable again */ |
|
|
348 | # define EV_USE_IOURING 1 |
|
|
349 | # else |
|
|
350 | # define EV_USE_IOURING 0 |
|
|
351 | # endif |
|
|
352 | #endif |
|
|
353 | |
274 | #ifndef EV_USE_INOTIFY |
354 | #ifndef EV_USE_INOTIFY |
275 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
355 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
276 | # define EV_USE_INOTIFY 1 |
356 | # define EV_USE_INOTIFY EV_FEATURE_OS |
277 | # else |
357 | # else |
278 | # define EV_USE_INOTIFY 0 |
358 | # define EV_USE_INOTIFY 0 |
279 | # endif |
359 | # endif |
280 | #endif |
360 | #endif |
281 | |
361 | |
282 | #ifndef EV_PID_HASHSIZE |
362 | #ifndef EV_PID_HASHSIZE |
283 | # if EV_MINIMAL |
363 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
284 | # define EV_PID_HASHSIZE 1 |
|
|
285 | # else |
|
|
286 | # define EV_PID_HASHSIZE 16 |
|
|
287 | # endif |
|
|
288 | #endif |
364 | #endif |
289 | |
365 | |
290 | #ifndef EV_INOTIFY_HASHSIZE |
366 | #ifndef EV_INOTIFY_HASHSIZE |
291 | # if EV_MINIMAL |
367 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
292 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
293 | # else |
|
|
294 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
295 | # endif |
|
|
296 | #endif |
368 | #endif |
297 | |
369 | |
298 | #ifndef EV_USE_EVENTFD |
370 | #ifndef EV_USE_EVENTFD |
299 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
371 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # define EV_USE_EVENTFD 1 |
372 | # define EV_USE_EVENTFD EV_FEATURE_OS |
301 | # else |
373 | # else |
302 | # define EV_USE_EVENTFD 0 |
374 | # define EV_USE_EVENTFD 0 |
303 | # endif |
375 | # endif |
304 | #endif |
376 | #endif |
305 | |
377 | |
306 | #ifndef EV_USE_SIGNALFD |
378 | #ifndef EV_USE_SIGNALFD |
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
379 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
308 | # define EV_USE_SIGNALFD 1 |
380 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
309 | # else |
381 | # else |
310 | # define EV_USE_SIGNALFD 0 |
382 | # define EV_USE_SIGNALFD 0 |
311 | # endif |
383 | # endif |
312 | #endif |
384 | #endif |
313 | |
385 | |
… | |
… | |
316 | # define EV_USE_4HEAP 1 |
388 | # define EV_USE_4HEAP 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
389 | # define EV_HEAP_CACHE_AT 1 |
318 | #endif |
390 | #endif |
319 | |
391 | |
320 | #ifndef EV_VERIFY |
392 | #ifndef EV_VERIFY |
321 | # define EV_VERIFY !EV_MINIMAL |
393 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
322 | #endif |
394 | #endif |
323 | |
395 | |
324 | #ifndef EV_USE_4HEAP |
396 | #ifndef EV_USE_4HEAP |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
397 | # define EV_USE_4HEAP EV_FEATURE_DATA |
326 | #endif |
398 | #endif |
327 | |
399 | |
328 | #ifndef EV_HEAP_CACHE_AT |
400 | #ifndef EV_HEAP_CACHE_AT |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
401 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
402 | #endif |
|
|
403 | |
|
|
404 | #ifdef __ANDROID__ |
|
|
405 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
406 | # undef EV_USE_SELECT |
|
|
407 | # define EV_USE_SELECT 0 |
|
|
408 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
409 | # undef EV_USE_CLOCK_SYSCALL |
|
|
410 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
411 | #endif |
|
|
412 | |
|
|
413 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
414 | #ifdef _AIX |
|
|
415 | /* AIX has a completely broken poll.h header */ |
|
|
416 | # undef EV_USE_POLL |
|
|
417 | # define EV_USE_POLL 0 |
330 | #endif |
418 | #endif |
331 | |
419 | |
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
420 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
333 | /* which makes programs even slower. might work on other unices, too. */ |
421 | /* which makes programs even slower. might work on other unices, too. */ |
334 | #if EV_USE_CLOCK_SYSCALL |
422 | #if EV_USE_CLOCK_SYSCALL |
335 | # include <syscall.h> |
423 | # include <sys/syscall.h> |
336 | # ifdef SYS_clock_gettime |
424 | # ifdef SYS_clock_gettime |
337 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
425 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
338 | # undef EV_USE_MONOTONIC |
426 | # undef EV_USE_MONOTONIC |
339 | # define EV_USE_MONOTONIC 1 |
427 | # define EV_USE_MONOTONIC 1 |
|
|
428 | # define EV_NEED_SYSCALL 1 |
340 | # else |
429 | # else |
341 | # undef EV_USE_CLOCK_SYSCALL |
430 | # undef EV_USE_CLOCK_SYSCALL |
342 | # define EV_USE_CLOCK_SYSCALL 0 |
431 | # define EV_USE_CLOCK_SYSCALL 0 |
343 | # endif |
432 | # endif |
344 | #endif |
433 | #endif |
… | |
… | |
358 | #if !EV_STAT_ENABLE |
447 | #if !EV_STAT_ENABLE |
359 | # undef EV_USE_INOTIFY |
448 | # undef EV_USE_INOTIFY |
360 | # define EV_USE_INOTIFY 0 |
449 | # define EV_USE_INOTIFY 0 |
361 | #endif |
450 | #endif |
362 | |
451 | |
|
|
452 | #if __linux && EV_USE_IOURING |
|
|
453 | # include <linux/version.h> |
|
|
454 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
|
|
455 | # undef EV_USE_IOURING |
|
|
456 | # define EV_USE_IOURING 0 |
|
|
457 | # endif |
|
|
458 | #endif |
|
|
459 | |
363 | #if !EV_USE_NANOSLEEP |
460 | #if !EV_USE_NANOSLEEP |
364 | # ifndef _WIN32 |
461 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
462 | # if !defined _WIN32 && !defined __hpux |
365 | # include <sys/select.h> |
463 | # include <sys/select.h> |
366 | # endif |
464 | # endif |
367 | #endif |
465 | #endif |
368 | |
466 | |
|
|
467 | #if EV_USE_LINUXAIO |
|
|
468 | # include <sys/syscall.h> |
|
|
469 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
470 | # define EV_NEED_SYSCALL 1 |
|
|
471 | # else |
|
|
472 | # undef EV_USE_LINUXAIO |
|
|
473 | # define EV_USE_LINUXAIO 0 |
|
|
474 | # endif |
|
|
475 | #endif |
|
|
476 | |
|
|
477 | #if EV_USE_IOURING |
|
|
478 | # include <sys/syscall.h> |
|
|
479 | # if !SYS_io_uring_setup && __linux && !__alpha |
|
|
480 | # define SYS_io_uring_setup 425 |
|
|
481 | # define SYS_io_uring_enter 426 |
|
|
482 | # define SYS_io_uring_wregister 427 |
|
|
483 | # endif |
|
|
484 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
485 | # define EV_NEED_SYSCALL 1 |
|
|
486 | # else |
|
|
487 | # undef EV_USE_IOURING |
|
|
488 | # define EV_USE_IOURING 0 |
|
|
489 | # endif |
|
|
490 | #endif |
|
|
491 | |
369 | #if EV_USE_INOTIFY |
492 | #if EV_USE_INOTIFY |
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
493 | # include <sys/statfs.h> |
372 | # include <sys/inotify.h> |
494 | # include <sys/inotify.h> |
373 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
495 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
374 | # ifndef IN_DONT_FOLLOW |
496 | # ifndef IN_DONT_FOLLOW |
375 | # undef EV_USE_INOTIFY |
497 | # undef EV_USE_INOTIFY |
376 | # define EV_USE_INOTIFY 0 |
498 | # define EV_USE_INOTIFY 0 |
377 | # endif |
499 | # endif |
378 | #endif |
|
|
379 | |
|
|
380 | #if EV_SELECT_IS_WINSOCKET |
|
|
381 | # include <winsock.h> |
|
|
382 | #endif |
500 | #endif |
383 | |
501 | |
384 | #if EV_USE_EVENTFD |
502 | #if EV_USE_EVENTFD |
385 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
503 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
386 | # include <stdint.h> |
504 | # include <stdint.h> |
… | |
… | |
392 | # define EFD_CLOEXEC O_CLOEXEC |
510 | # define EFD_CLOEXEC O_CLOEXEC |
393 | # else |
511 | # else |
394 | # define EFD_CLOEXEC 02000000 |
512 | # define EFD_CLOEXEC 02000000 |
395 | # endif |
513 | # endif |
396 | # endif |
514 | # endif |
397 | # ifdef __cplusplus |
|
|
398 | extern "C" { |
|
|
399 | # endif |
|
|
400 | int eventfd (unsigned int initval, int flags); |
515 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
401 | # ifdef __cplusplus |
|
|
402 | } |
|
|
403 | # endif |
|
|
404 | #endif |
516 | #endif |
405 | |
517 | |
406 | #if EV_USE_SIGNALFD |
518 | #if EV_USE_SIGNALFD |
407 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
519 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
408 | # include <stdint.h> |
520 | # include <stdint.h> |
… | |
… | |
414 | # define SFD_CLOEXEC O_CLOEXEC |
526 | # define SFD_CLOEXEC O_CLOEXEC |
415 | # else |
527 | # else |
416 | # define SFD_CLOEXEC 02000000 |
528 | # define SFD_CLOEXEC 02000000 |
417 | # endif |
529 | # endif |
418 | # endif |
530 | # endif |
419 | # ifdef __cplusplus |
|
|
420 | extern "C" { |
|
|
421 | # endif |
|
|
422 | int signalfd (int fd, const sigset_t *mask, int flags); |
531 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
423 | |
532 | |
424 | struct signalfd_siginfo |
533 | struct signalfd_siginfo |
425 | { |
534 | { |
426 | uint32_t ssi_signo; |
535 | uint32_t ssi_signo; |
427 | char pad[128 - sizeof (uint32_t)]; |
536 | char pad[128 - sizeof (uint32_t)]; |
428 | }; |
537 | }; |
429 | # ifdef __cplusplus |
|
|
430 | } |
|
|
431 | # endif |
538 | #endif |
432 | #endif |
|
|
433 | |
539 | |
434 | |
540 | /*****************************************************************************/ |
435 | /**/ |
|
|
436 | |
541 | |
437 | #if EV_VERIFY >= 3 |
542 | #if EV_VERIFY >= 3 |
438 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
543 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
439 | #else |
544 | #else |
440 | # define EV_FREQUENT_CHECK do { } while (0) |
545 | # define EV_FREQUENT_CHECK do { } while (0) |
441 | #endif |
546 | #endif |
442 | |
547 | |
443 | /* |
548 | /* |
444 | * This is used to avoid floating point rounding problems. |
549 | * This is used to work around floating point rounding problems. |
445 | * It is added to ev_rt_now when scheduling periodics |
|
|
446 | * to ensure progress, time-wise, even when rounding |
|
|
447 | * errors are against us. |
|
|
448 | * This value is good at least till the year 4000. |
550 | * This value is good at least till the year 4000. |
449 | * Better solutions welcome. |
|
|
450 | */ |
551 | */ |
451 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
552 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
553 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
452 | |
554 | |
453 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
555 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
454 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
556 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
455 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
456 | |
557 | |
|
|
558 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
559 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
560 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
561 | #define EV_TSTAMP_HUGE \ |
|
|
562 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
563 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
564 | : 2147483647.) \ |
|
|
565 | |
|
|
566 | #ifndef EV_TS_CONST |
|
|
567 | # define EV_TS_CONST(nv) nv |
|
|
568 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
569 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
|
|
570 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
571 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
572 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
573 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
574 | #endif |
|
|
575 | |
|
|
576 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
577 | /* ECB.H BEGIN */ |
|
|
578 | /* |
|
|
579 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
580 | * |
|
|
581 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
582 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
583 | * All rights reserved. |
|
|
584 | * |
|
|
585 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
586 | * tion, are permitted provided that the following conditions are met: |
|
|
587 | * |
|
|
588 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
589 | * this list of conditions and the following disclaimer. |
|
|
590 | * |
|
|
591 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
592 | * notice, this list of conditions and the following disclaimer in the |
|
|
593 | * documentation and/or other materials provided with the distribution. |
|
|
594 | * |
|
|
595 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
596 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
597 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
598 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
599 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
600 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
601 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
602 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
603 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
604 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
605 | * |
|
|
606 | * Alternatively, the contents of this file may be used under the terms of |
|
|
607 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
608 | * in which case the provisions of the GPL are applicable instead of |
|
|
609 | * the above. If you wish to allow the use of your version of this file |
|
|
610 | * only under the terms of the GPL and not to allow others to use your |
|
|
611 | * version of this file under the BSD license, indicate your decision |
|
|
612 | * by deleting the provisions above and replace them with the notice |
|
|
613 | * and other provisions required by the GPL. If you do not delete the |
|
|
614 | * provisions above, a recipient may use your version of this file under |
|
|
615 | * either the BSD or the GPL. |
|
|
616 | */ |
|
|
617 | |
|
|
618 | #ifndef ECB_H |
|
|
619 | #define ECB_H |
|
|
620 | |
|
|
621 | /* 16 bits major, 16 bits minor */ |
|
|
622 | #define ECB_VERSION 0x00010006 |
|
|
623 | |
|
|
624 | #ifdef _WIN32 |
|
|
625 | typedef signed char int8_t; |
|
|
626 | typedef unsigned char uint8_t; |
|
|
627 | typedef signed short int16_t; |
|
|
628 | typedef unsigned short uint16_t; |
|
|
629 | typedef signed int int32_t; |
|
|
630 | typedef unsigned int uint32_t; |
457 | #if __GNUC__ >= 4 |
631 | #if __GNUC__ |
458 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
632 | typedef signed long long int64_t; |
459 | # define noinline __attribute__ ((noinline)) |
633 | typedef unsigned long long uint64_t; |
|
|
634 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
635 | typedef signed __int64 int64_t; |
|
|
636 | typedef unsigned __int64 uint64_t; |
|
|
637 | #endif |
|
|
638 | #ifdef _WIN64 |
|
|
639 | #define ECB_PTRSIZE 8 |
|
|
640 | typedef uint64_t uintptr_t; |
|
|
641 | typedef int64_t intptr_t; |
|
|
642 | #else |
|
|
643 | #define ECB_PTRSIZE 4 |
|
|
644 | typedef uint32_t uintptr_t; |
|
|
645 | typedef int32_t intptr_t; |
|
|
646 | #endif |
460 | #else |
647 | #else |
461 | # define expect(expr,value) (expr) |
648 | #include <inttypes.h> |
462 | # define noinline |
649 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
463 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
650 | #define ECB_PTRSIZE 8 |
464 | # define inline |
651 | #else |
|
|
652 | #define ECB_PTRSIZE 4 |
|
|
653 | #endif |
465 | # endif |
654 | #endif |
|
|
655 | |
|
|
656 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
657 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
658 | |
|
|
659 | /* work around x32 idiocy by defining proper macros */ |
|
|
660 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
661 | #if _ILP32 |
|
|
662 | #define ECB_AMD64_X32 1 |
|
|
663 | #else |
|
|
664 | #define ECB_AMD64 1 |
466 | #endif |
665 | #endif |
|
|
666 | #endif |
467 | |
667 | |
468 | #define expect_false(expr) expect ((expr) != 0, 0) |
668 | /* many compilers define _GNUC_ to some versions but then only implement |
469 | #define expect_true(expr) expect ((expr) != 0, 1) |
669 | * what their idiot authors think are the "more important" extensions, |
470 | #define inline_size static inline |
670 | * causing enormous grief in return for some better fake benchmark numbers. |
471 | |
671 | * or so. |
472 | #if EV_MINIMAL |
672 | * we try to detect these and simply assume they are not gcc - if they have |
473 | # define inline_speed static noinline |
673 | * an issue with that they should have done it right in the first place. |
|
|
674 | */ |
|
|
675 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
676 | #define ECB_GCC_VERSION(major,minor) 0 |
474 | #else |
677 | #else |
|
|
678 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
679 | #endif |
|
|
680 | |
|
|
681 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
682 | |
|
|
683 | #if __clang__ && defined __has_builtin |
|
|
684 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
685 | #else |
|
|
686 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | #if __clang__ && defined __has_extension |
|
|
690 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
691 | #else |
|
|
692 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
693 | #endif |
|
|
694 | |
|
|
695 | #define ECB_CPP (__cplusplus+0) |
|
|
696 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
697 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
698 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
699 | |
|
|
700 | #if ECB_CPP |
|
|
701 | #define ECB_C 0 |
|
|
702 | #define ECB_STDC_VERSION 0 |
|
|
703 | #else |
|
|
704 | #define ECB_C 1 |
|
|
705 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
709 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
710 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
711 | |
|
|
712 | #if ECB_CPP |
|
|
713 | #define ECB_EXTERN_C extern "C" |
|
|
714 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
715 | #define ECB_EXTERN_C_END } |
|
|
716 | #else |
|
|
717 | #define ECB_EXTERN_C extern |
|
|
718 | #define ECB_EXTERN_C_BEG |
|
|
719 | #define ECB_EXTERN_C_END |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | /*****************************************************************************/ |
|
|
723 | |
|
|
724 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
725 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
726 | |
|
|
727 | #if ECB_NO_THREADS |
|
|
728 | #define ECB_NO_SMP 1 |
|
|
729 | #endif |
|
|
730 | |
|
|
731 | #if ECB_NO_SMP |
|
|
732 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
736 | #if __xlC__ && ECB_CPP |
|
|
737 | #include <builtins.h> |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | #if 1400 <= _MSC_VER |
|
|
741 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
742 | #endif |
|
|
743 | |
|
|
744 | #ifndef ECB_MEMORY_FENCE |
|
|
745 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
746 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
747 | #if __i386 || __i386__ |
|
|
748 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
749 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
750 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
751 | #elif ECB_GCC_AMD64 |
|
|
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
753 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
754 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
755 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
756 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
757 | #elif defined __ARM_ARCH_2__ \ |
|
|
758 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
759 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
760 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
761 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
762 | || defined __ARM_ARCH_5TEJ__ |
|
|
763 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
764 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
765 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
766 | || defined __ARM_ARCH_6T2__ |
|
|
767 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
768 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
769 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
770 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
771 | #elif __aarch64__ |
|
|
772 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
773 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
774 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
775 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
776 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
777 | #elif defined __s390__ || defined __s390x__ |
|
|
778 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
779 | #elif defined __mips__ |
|
|
780 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
781 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
782 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
783 | #elif defined __alpha__ |
|
|
784 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
785 | #elif defined __hppa__ |
|
|
786 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
787 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
788 | #elif defined __ia64__ |
|
|
789 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
790 | #elif defined __m68k__ |
|
|
791 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
792 | #elif defined __m88k__ |
|
|
793 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
794 | #elif defined __sh__ |
|
|
795 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
796 | #endif |
|
|
797 | #endif |
|
|
798 | #endif |
|
|
799 | |
|
|
800 | #ifndef ECB_MEMORY_FENCE |
|
|
801 | #if ECB_GCC_VERSION(4,7) |
|
|
802 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
803 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
804 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
805 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
806 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
807 | |
|
|
808 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
809 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
810 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
811 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
812 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
813 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
814 | |
|
|
815 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
816 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
817 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
818 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
819 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
820 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
821 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
822 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
823 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
824 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
825 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
826 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
827 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
828 | #elif defined _WIN32 |
|
|
829 | #include <WinNT.h> |
|
|
830 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
831 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
832 | #include <mbarrier.h> |
|
|
833 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
834 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
835 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
836 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
837 | #elif __xlC__ |
|
|
838 | #define ECB_MEMORY_FENCE __sync () |
|
|
839 | #endif |
|
|
840 | #endif |
|
|
841 | |
|
|
842 | #ifndef ECB_MEMORY_FENCE |
|
|
843 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
844 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
845 | /* not just C11 atomics and atomic accesses */ |
|
|
846 | #include <stdatomic.h> |
|
|
847 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
849 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
850 | #endif |
|
|
851 | #endif |
|
|
852 | |
|
|
853 | #ifndef ECB_MEMORY_FENCE |
|
|
854 | #if !ECB_AVOID_PTHREADS |
|
|
855 | /* |
|
|
856 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
857 | * or failure to find pthread.h, then you should implement |
|
|
858 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
859 | * OR provide pthread.h and link against the posix thread library |
|
|
860 | * of your system. |
|
|
861 | */ |
|
|
862 | #include <pthread.h> |
|
|
863 | #define ECB_NEEDS_PTHREADS 1 |
|
|
864 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
865 | |
|
|
866 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
867 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
868 | #endif |
|
|
869 | #endif |
|
|
870 | |
|
|
871 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
872 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
880 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
881 | #endif |
|
|
882 | |
|
|
883 | /*****************************************************************************/ |
|
|
884 | |
|
|
885 | #if ECB_CPP |
|
|
886 | #define ecb_inline static inline |
|
|
887 | #elif ECB_GCC_VERSION(2,5) |
|
|
888 | #define ecb_inline static __inline__ |
|
|
889 | #elif ECB_C99 |
|
|
890 | #define ecb_inline static inline |
|
|
891 | #else |
|
|
892 | #define ecb_inline static |
|
|
893 | #endif |
|
|
894 | |
|
|
895 | #if ECB_GCC_VERSION(3,3) |
|
|
896 | #define ecb_restrict __restrict__ |
|
|
897 | #elif ECB_C99 |
|
|
898 | #define ecb_restrict restrict |
|
|
899 | #else |
|
|
900 | #define ecb_restrict |
|
|
901 | #endif |
|
|
902 | |
|
|
903 | typedef int ecb_bool; |
|
|
904 | |
|
|
905 | #define ECB_CONCAT_(a, b) a ## b |
|
|
906 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
907 | #define ECB_STRINGIFY_(a) # a |
|
|
908 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
909 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
910 | |
|
|
911 | #define ecb_function_ ecb_inline |
|
|
912 | |
|
|
913 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
914 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
915 | #else |
|
|
916 | #define ecb_attribute(attrlist) |
|
|
917 | #endif |
|
|
918 | |
|
|
919 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
920 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
921 | #else |
|
|
922 | /* possible C11 impl for integral types |
|
|
923 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
924 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
925 | |
|
|
926 | #define ecb_is_constant(expr) 0 |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
930 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
931 | #else |
|
|
932 | #define ecb_expect(expr,value) (expr) |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
936 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
937 | #else |
|
|
938 | #define ecb_prefetch(addr,rw,locality) |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | /* no emulation for ecb_decltype */ |
|
|
942 | #if ECB_CPP11 |
|
|
943 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
944 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
945 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
946 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
947 | #define ecb_decltype(x) __typeof__ (x) |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | #if _MSC_VER >= 1300 |
|
|
951 | #define ecb_deprecated __declspec (deprecated) |
|
|
952 | #else |
|
|
953 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if _MSC_VER >= 1500 |
|
|
957 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
958 | #elif ECB_GCC_VERSION(4,5) |
|
|
959 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
960 | #else |
|
|
961 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | #if _MSC_VER >= 1400 |
|
|
965 | #define ecb_noinline __declspec (noinline) |
|
|
966 | #else |
|
|
967 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
968 | #endif |
|
|
969 | |
|
|
970 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
971 | #define ecb_const ecb_attribute ((__const__)) |
|
|
972 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
973 | |
|
|
974 | #if ECB_C11 || __IBMC_NORETURN |
|
|
975 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
976 | #define ecb_noreturn _Noreturn |
|
|
977 | #elif ECB_CPP11 |
|
|
978 | #define ecb_noreturn [[noreturn]] |
|
|
979 | #elif _MSC_VER >= 1200 |
|
|
980 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
981 | #define ecb_noreturn __declspec (noreturn) |
|
|
982 | #else |
|
|
983 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
984 | #endif |
|
|
985 | |
|
|
986 | #if ECB_GCC_VERSION(4,3) |
|
|
987 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
988 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
989 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
990 | #else |
|
|
991 | #define ecb_artificial |
|
|
992 | #define ecb_hot |
|
|
993 | #define ecb_cold |
|
|
994 | #endif |
|
|
995 | |
|
|
996 | /* put around conditional expressions if you are very sure that the */ |
|
|
997 | /* expression is mostly true or mostly false. note that these return */ |
|
|
998 | /* booleans, not the expression. */ |
|
|
999 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
|
|
1000 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
1001 | /* for compatibility to the rest of the world */ |
|
|
1002 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
1003 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
1004 | |
|
|
1005 | /* count trailing zero bits and count # of one bits */ |
|
|
1006 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1007 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1008 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1009 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
1010 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
1011 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
1012 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
1013 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
1014 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
1015 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
1016 | /* no popcountll */ |
|
|
1017 | #else |
|
|
1018 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
1019 | ecb_function_ ecb_const int |
|
|
1020 | ecb_ctz32 (uint32_t x) |
|
|
1021 | { |
|
|
1022 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1023 | unsigned long r; |
|
|
1024 | _BitScanForward (&r, x); |
|
|
1025 | return (int)r; |
|
|
1026 | #else |
|
|
1027 | int r = 0; |
|
|
1028 | |
|
|
1029 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1030 | |
|
|
1031 | #if ECB_branchless_on_i386 |
|
|
1032 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1033 | r += !!(x & 0xcccccccc) << 1; |
|
|
1034 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1035 | r += !!(x & 0xff00ff00) << 3; |
|
|
1036 | r += !!(x & 0xffff0000) << 4; |
|
|
1037 | #else |
|
|
1038 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1039 | if (x & 0xcccccccc) r += 2; |
|
|
1040 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1041 | if (x & 0xff00ff00) r += 8; |
|
|
1042 | if (x & 0xffff0000) r += 16; |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | return r; |
|
|
1046 | #endif |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1050 | ecb_function_ ecb_const int |
|
|
1051 | ecb_ctz64 (uint64_t x) |
|
|
1052 | { |
|
|
1053 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1054 | unsigned long r; |
|
|
1055 | _BitScanForward64 (&r, x); |
|
|
1056 | return (int)r; |
|
|
1057 | #else |
|
|
1058 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1059 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1060 | #endif |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1064 | ecb_function_ ecb_const int |
|
|
1065 | ecb_popcount32 (uint32_t x) |
|
|
1066 | { |
|
|
1067 | x -= (x >> 1) & 0x55555555; |
|
|
1068 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1069 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1070 | x *= 0x01010101; |
|
|
1071 | |
|
|
1072 | return x >> 24; |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1076 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1077 | { |
|
|
1078 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1079 | unsigned long r; |
|
|
1080 | _BitScanReverse (&r, x); |
|
|
1081 | return (int)r; |
|
|
1082 | #else |
|
|
1083 | int r = 0; |
|
|
1084 | |
|
|
1085 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1086 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1087 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1088 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1089 | if (x >> 1) { r += 1; } |
|
|
1090 | |
|
|
1091 | return r; |
|
|
1092 | #endif |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1096 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1097 | { |
|
|
1098 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1099 | unsigned long r; |
|
|
1100 | _BitScanReverse64 (&r, x); |
|
|
1101 | return (int)r; |
|
|
1102 | #else |
|
|
1103 | int r = 0; |
|
|
1104 | |
|
|
1105 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1106 | |
|
|
1107 | return r + ecb_ld32 (x); |
|
|
1108 | #endif |
|
|
1109 | } |
|
|
1110 | #endif |
|
|
1111 | |
|
|
1112 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1113 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1114 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1115 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1116 | |
|
|
1117 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1118 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1119 | { |
|
|
1120 | return ( (x * 0x0802U & 0x22110U) |
|
|
1121 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1125 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1126 | { |
|
|
1127 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1128 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1129 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1130 | x = ( x >> 8 ) | ( x << 8); |
|
|
1131 | |
|
|
1132 | return x; |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1136 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1137 | { |
|
|
1138 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1139 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1140 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1141 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1142 | x = ( x >> 16 ) | ( x << 16); |
|
|
1143 | |
|
|
1144 | return x; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1148 | /* so for this version we are lazy */ |
|
|
1149 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1150 | ecb_function_ ecb_const int |
|
|
1151 | ecb_popcount64 (uint64_t x) |
|
|
1152 | { |
|
|
1153 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1157 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1158 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1159 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1160 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1161 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1162 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1163 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1164 | |
|
|
1165 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1166 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1167 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1168 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1169 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1170 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1171 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1172 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1173 | |
|
|
1174 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1175 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1176 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1177 | #else |
|
|
1178 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1179 | #endif |
|
|
1180 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1181 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1182 | #elif _MSC_VER |
|
|
1183 | #include <stdlib.h> |
|
|
1184 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1185 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1186 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1187 | #else |
|
|
1188 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1189 | ecb_function_ ecb_const uint16_t |
|
|
1190 | ecb_bswap16 (uint16_t x) |
|
|
1191 | { |
|
|
1192 | return ecb_rotl16 (x, 8); |
|
|
1193 | } |
|
|
1194 | |
|
|
1195 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1196 | ecb_function_ ecb_const uint32_t |
|
|
1197 | ecb_bswap32 (uint32_t x) |
|
|
1198 | { |
|
|
1199 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1200 | } |
|
|
1201 | |
|
|
1202 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1203 | ecb_function_ ecb_const uint64_t |
|
|
1204 | ecb_bswap64 (uint64_t x) |
|
|
1205 | { |
|
|
1206 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1207 | } |
|
|
1208 | #endif |
|
|
1209 | |
|
|
1210 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1211 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1212 | #else |
|
|
1213 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1214 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1215 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1216 | #endif |
|
|
1217 | |
|
|
1218 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1219 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1220 | |
|
|
1221 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1222 | ecb_inline ecb_const uint32_t |
|
|
1223 | ecb_byteorder_helper (void) |
|
|
1224 | { |
|
|
1225 | /* the union code still generates code under pressure in gcc, */ |
|
|
1226 | /* but less than using pointers, and always seems to */ |
|
|
1227 | /* successfully return a constant. */ |
|
|
1228 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1229 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1230 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1231 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1232 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1233 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1234 | return 0x44332211; |
|
|
1235 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1236 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1237 | #define ECB_BIG_ENDIAN 1 |
|
|
1238 | return 0x11223344; |
|
|
1239 | #else |
|
|
1240 | union |
|
|
1241 | { |
|
|
1242 | uint8_t c[4]; |
|
|
1243 | uint32_t u; |
|
|
1244 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1245 | return u.u; |
|
|
1246 | #endif |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1250 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1251 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1252 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1253 | |
|
|
1254 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1255 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1256 | #else |
|
|
1257 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1258 | #endif |
|
|
1259 | |
|
|
1260 | #if ECB_CPP |
|
|
1261 | template<typename T> |
|
|
1262 | static inline T ecb_div_rd (T val, T div) |
|
|
1263 | { |
|
|
1264 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1265 | } |
|
|
1266 | template<typename T> |
|
|
1267 | static inline T ecb_div_ru (T val, T div) |
|
|
1268 | { |
|
|
1269 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1270 | } |
|
|
1271 | #else |
|
|
1272 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1273 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1274 | #endif |
|
|
1275 | |
|
|
1276 | #if ecb_cplusplus_does_not_suck |
|
|
1277 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1278 | template<typename T, int N> |
|
|
1279 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1280 | { |
|
|
1281 | return N; |
|
|
1282 | } |
|
|
1283 | #else |
|
|
1284 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1285 | #endif |
|
|
1286 | |
|
|
1287 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1288 | ecb_function_ ecb_const uint32_t |
|
|
1289 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1290 | { |
|
|
1291 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1292 | int e = (x >> 10) & 0x001f; |
|
|
1293 | unsigned int m = x & 0x03ff; |
|
|
1294 | |
|
|
1295 | if (ecb_expect_false (e == 31)) |
|
|
1296 | /* infinity or NaN */ |
|
|
1297 | e = 255 - (127 - 15); |
|
|
1298 | else if (ecb_expect_false (!e)) |
|
|
1299 | { |
|
|
1300 | if (ecb_expect_true (!m)) |
|
|
1301 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1302 | e = 0 - (127 - 15); |
|
|
1303 | else |
|
|
1304 | { |
|
|
1305 | /* subnormal, renormalise */ |
|
|
1306 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1307 | |
|
|
1308 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1309 | e -= s - 1; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1314 | e += 127 - 15; |
|
|
1315 | |
|
|
1316 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1320 | ecb_function_ ecb_const uint16_t |
|
|
1321 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1322 | { |
|
|
1323 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1324 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1325 | unsigned int m = x & 0x007fffff; |
|
|
1326 | |
|
|
1327 | x &= 0x7fffffff; |
|
|
1328 | |
|
|
1329 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1330 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1331 | { |
|
|
1332 | /* mantissa round-to-even */ |
|
|
1333 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1334 | |
|
|
1335 | /* handle overflow */ |
|
|
1336 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1337 | { |
|
|
1338 | m >>= 1; |
|
|
1339 | e += 1; |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | /* handle large numbers and infinity */ |
|
|
1346 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1347 | return s | 0x7c00; |
|
|
1348 | |
|
|
1349 | /* handle zero, subnormals and small numbers */ |
|
|
1350 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1351 | { |
|
|
1352 | /* zero */ |
|
|
1353 | if (ecb_expect_true (!x)) |
|
|
1354 | return s; |
|
|
1355 | |
|
|
1356 | /* handle subnormals */ |
|
|
1357 | |
|
|
1358 | /* too small, will be zero */ |
|
|
1359 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1360 | return s; |
|
|
1361 | |
|
|
1362 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1363 | |
|
|
1364 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1365 | { |
|
|
1366 | unsigned int bits = 14 - e; |
|
|
1367 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1368 | unsigned int even = (m >> bits) & 1; |
|
|
1369 | |
|
|
1370 | /* if this overflows, we will end up with a normalised number */ |
|
|
1371 | m = (m + half + even) >> bits; |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | return s | m; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1378 | m >>= 13; |
|
|
1379 | |
|
|
1380 | return s | 0x7c00 | m | !m; |
|
|
1381 | } |
|
|
1382 | |
|
|
1383 | /*******************************************************************************/ |
|
|
1384 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1385 | |
|
|
1386 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1387 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1388 | #if 0 \ |
|
|
1389 | || __i386 || __i386__ \ |
|
|
1390 | || ECB_GCC_AMD64 \ |
|
|
1391 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1392 | || defined __s390__ || defined __s390x__ \ |
|
|
1393 | || defined __mips__ \ |
|
|
1394 | || defined __alpha__ \ |
|
|
1395 | || defined __hppa__ \ |
|
|
1396 | || defined __ia64__ \ |
|
|
1397 | || defined __m68k__ \ |
|
|
1398 | || defined __m88k__ \ |
|
|
1399 | || defined __sh__ \ |
|
|
1400 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1401 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1402 | || defined __aarch64__ |
|
|
1403 | #define ECB_STDFP 1 |
|
|
1404 | #include <string.h> /* for memcpy */ |
|
|
1405 | #else |
|
|
1406 | #define ECB_STDFP 0 |
|
|
1407 | #endif |
|
|
1408 | |
|
|
1409 | #ifndef ECB_NO_LIBM |
|
|
1410 | |
|
|
1411 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1412 | |
|
|
1413 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1414 | #ifdef INFINITY |
|
|
1415 | #define ECB_INFINITY INFINITY |
|
|
1416 | #else |
|
|
1417 | #define ECB_INFINITY HUGE_VAL |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #ifdef NAN |
|
|
1421 | #define ECB_NAN NAN |
|
|
1422 | #else |
|
|
1423 | #define ECB_NAN ECB_INFINITY |
|
|
1424 | #endif |
|
|
1425 | |
|
|
1426 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1427 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1428 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1429 | #else |
|
|
1430 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1431 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1432 | #endif |
|
|
1433 | |
|
|
1434 | /* convert a float to ieee single/binary32 */ |
|
|
1435 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1436 | ecb_function_ ecb_const uint32_t |
|
|
1437 | ecb_float_to_binary32 (float x) |
|
|
1438 | { |
|
|
1439 | uint32_t r; |
|
|
1440 | |
|
|
1441 | #if ECB_STDFP |
|
|
1442 | memcpy (&r, &x, 4); |
|
|
1443 | #else |
|
|
1444 | /* slow emulation, works for anything but -0 */ |
|
|
1445 | uint32_t m; |
|
|
1446 | int e; |
|
|
1447 | |
|
|
1448 | if (x == 0e0f ) return 0x00000000U; |
|
|
1449 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1450 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1451 | if (x != x ) return 0x7fbfffffU; |
|
|
1452 | |
|
|
1453 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1454 | |
|
|
1455 | r = m & 0x80000000U; |
|
|
1456 | |
|
|
1457 | if (r) |
|
|
1458 | m = -m; |
|
|
1459 | |
|
|
1460 | if (e <= -126) |
|
|
1461 | { |
|
|
1462 | m &= 0xffffffU; |
|
|
1463 | m >>= (-125 - e); |
|
|
1464 | e = -126; |
|
|
1465 | } |
|
|
1466 | |
|
|
1467 | r |= (e + 126) << 23; |
|
|
1468 | r |= m & 0x7fffffU; |
|
|
1469 | #endif |
|
|
1470 | |
|
|
1471 | return r; |
|
|
1472 | } |
|
|
1473 | |
|
|
1474 | /* converts an ieee single/binary32 to a float */ |
|
|
1475 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1476 | ecb_function_ ecb_const float |
|
|
1477 | ecb_binary32_to_float (uint32_t x) |
|
|
1478 | { |
|
|
1479 | float r; |
|
|
1480 | |
|
|
1481 | #if ECB_STDFP |
|
|
1482 | memcpy (&r, &x, 4); |
|
|
1483 | #else |
|
|
1484 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1485 | int neg = x >> 31; |
|
|
1486 | int e = (x >> 23) & 0xffU; |
|
|
1487 | |
|
|
1488 | x &= 0x7fffffU; |
|
|
1489 | |
|
|
1490 | if (e) |
|
|
1491 | x |= 0x800000U; |
|
|
1492 | else |
|
|
1493 | e = 1; |
|
|
1494 | |
|
|
1495 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1496 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1497 | |
|
|
1498 | r = neg ? -r : r; |
|
|
1499 | #endif |
|
|
1500 | |
|
|
1501 | return r; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | /* convert a double to ieee double/binary64 */ |
|
|
1505 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1506 | ecb_function_ ecb_const uint64_t |
|
|
1507 | ecb_double_to_binary64 (double x) |
|
|
1508 | { |
|
|
1509 | uint64_t r; |
|
|
1510 | |
|
|
1511 | #if ECB_STDFP |
|
|
1512 | memcpy (&r, &x, 8); |
|
|
1513 | #else |
|
|
1514 | /* slow emulation, works for anything but -0 */ |
|
|
1515 | uint64_t m; |
|
|
1516 | int e; |
|
|
1517 | |
|
|
1518 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1519 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1520 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1521 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1522 | |
|
|
1523 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1524 | |
|
|
1525 | r = m & 0x8000000000000000;; |
|
|
1526 | |
|
|
1527 | if (r) |
|
|
1528 | m = -m; |
|
|
1529 | |
|
|
1530 | if (e <= -1022) |
|
|
1531 | { |
|
|
1532 | m &= 0x1fffffffffffffU; |
|
|
1533 | m >>= (-1021 - e); |
|
|
1534 | e = -1022; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1538 | r |= m & 0xfffffffffffffU; |
|
|
1539 | #endif |
|
|
1540 | |
|
|
1541 | return r; |
|
|
1542 | } |
|
|
1543 | |
|
|
1544 | /* converts an ieee double/binary64 to a double */ |
|
|
1545 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1546 | ecb_function_ ecb_const double |
|
|
1547 | ecb_binary64_to_double (uint64_t x) |
|
|
1548 | { |
|
|
1549 | double r; |
|
|
1550 | |
|
|
1551 | #if ECB_STDFP |
|
|
1552 | memcpy (&r, &x, 8); |
|
|
1553 | #else |
|
|
1554 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1555 | int neg = x >> 63; |
|
|
1556 | int e = (x >> 52) & 0x7ffU; |
|
|
1557 | |
|
|
1558 | x &= 0xfffffffffffffU; |
|
|
1559 | |
|
|
1560 | if (e) |
|
|
1561 | x |= 0x10000000000000U; |
|
|
1562 | else |
|
|
1563 | e = 1; |
|
|
1564 | |
|
|
1565 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1566 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1567 | |
|
|
1568 | r = neg ? -r : r; |
|
|
1569 | #endif |
|
|
1570 | |
|
|
1571 | return r; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | /* convert a float to ieee half/binary16 */ |
|
|
1575 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1576 | ecb_function_ ecb_const uint16_t |
|
|
1577 | ecb_float_to_binary16 (float x) |
|
|
1578 | { |
|
|
1579 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | /* convert an ieee half/binary16 to float */ |
|
|
1583 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1584 | ecb_function_ ecb_const float |
|
|
1585 | ecb_binary16_to_float (uint16_t x) |
|
|
1586 | { |
|
|
1587 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1588 | } |
|
|
1589 | |
|
|
1590 | #endif |
|
|
1591 | |
|
|
1592 | #endif |
|
|
1593 | |
|
|
1594 | /* ECB.H END */ |
|
|
1595 | |
|
|
1596 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1597 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1598 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1599 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1600 | * libev, in which cases the memory fences become nops. |
|
|
1601 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1602 | * which will then provide the memory fences. |
|
|
1603 | */ |
|
|
1604 | # error "memory fences not defined for your architecture, please report" |
|
|
1605 | #endif |
|
|
1606 | |
|
|
1607 | #ifndef ECB_MEMORY_FENCE |
|
|
1608 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1609 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1610 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1611 | #endif |
|
|
1612 | |
|
|
1613 | #define inline_size ecb_inline |
|
|
1614 | |
|
|
1615 | #if EV_FEATURE_CODE |
475 | # define inline_speed static inline |
1616 | # define inline_speed ecb_inline |
|
|
1617 | #else |
|
|
1618 | # define inline_speed ecb_noinline static |
476 | #endif |
1619 | #endif |
|
|
1620 | |
|
|
1621 | /*****************************************************************************/ |
|
|
1622 | /* raw syscall wrappers */ |
|
|
1623 | |
|
|
1624 | #if EV_NEED_SYSCALL |
|
|
1625 | |
|
|
1626 | #include <sys/syscall.h> |
|
|
1627 | |
|
|
1628 | /* |
|
|
1629 | * define some syscall wrappers for common architectures |
|
|
1630 | * this is mostly for nice looks during debugging, not performance. |
|
|
1631 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1632 | * enough for linux aio. |
|
|
1633 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1634 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1635 | */ |
|
|
1636 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1637 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1638 | |
|
|
1639 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1640 | ({ \ |
|
|
1641 | long res; \ |
|
|
1642 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1643 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1644 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1645 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1646 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1647 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1648 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1649 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1650 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1651 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1652 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1653 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1654 | __asm__ __volatile__ ( \ |
|
|
1655 | "syscall\n\t" \ |
|
|
1656 | : "=a" (res) \ |
|
|
1657 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1658 | : "cc", "r11", "cx", "memory"); \ |
|
|
1659 | errno = -res; \ |
|
|
1660 | res; \ |
|
|
1661 | }) |
|
|
1662 | |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | #ifdef ev_syscall |
|
|
1666 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1667 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1668 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1669 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1670 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1671 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1672 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1673 | #else |
|
|
1674 | #define ev_syscall0(nr) syscall (nr) |
|
|
1675 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1676 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1677 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1678 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1679 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1680 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1681 | #endif |
|
|
1682 | |
|
|
1683 | #endif |
|
|
1684 | |
|
|
1685 | /*****************************************************************************/ |
477 | |
1686 | |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1687 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | |
1688 | |
480 | #if EV_MINPRI == EV_MAXPRI |
1689 | #if EV_MINPRI == EV_MAXPRI |
481 | # define ABSPRI(w) (((W)w), 0) |
1690 | # define ABSPRI(w) (((W)w), 0) |
482 | #else |
1691 | #else |
483 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1692 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
484 | #endif |
1693 | #endif |
485 | |
1694 | |
486 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1695 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
487 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
488 | |
1696 | |
489 | typedef ev_watcher *W; |
1697 | typedef ev_watcher *W; |
490 | typedef ev_watcher_list *WL; |
1698 | typedef ev_watcher_list *WL; |
491 | typedef ev_watcher_time *WT; |
1699 | typedef ev_watcher_time *WT; |
492 | |
1700 | |
493 | #define ev_active(w) ((W)(w))->active |
1701 | #define ev_active(w) ((W)(w))->active |
494 | #define ev_at(w) ((WT)(w))->at |
1702 | #define ev_at(w) ((WT)(w))->at |
495 | |
1703 | |
496 | #if EV_USE_REALTIME |
1704 | #if EV_USE_REALTIME |
497 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1705 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
498 | /* giving it a reasonably high chance of working on typical architetcures */ |
1706 | /* giving it a reasonably high chance of working on typical architectures */ |
499 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1707 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
500 | #endif |
1708 | #endif |
501 | |
1709 | |
502 | #if EV_USE_MONOTONIC |
1710 | #if EV_USE_MONOTONIC |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1711 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
505 | |
1713 | |
506 | #ifndef EV_FD_TO_WIN32_HANDLE |
1714 | #ifndef EV_FD_TO_WIN32_HANDLE |
507 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
1715 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
508 | #endif |
1716 | #endif |
509 | #ifndef EV_WIN32_HANDLE_TO_FD |
1717 | #ifndef EV_WIN32_HANDLE_TO_FD |
510 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
1718 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
511 | #endif |
1719 | #endif |
512 | #ifndef EV_WIN32_CLOSE_FD |
1720 | #ifndef EV_WIN32_CLOSE_FD |
513 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
1721 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
514 | #endif |
1722 | #endif |
515 | |
1723 | |
… | |
… | |
517 | # include "ev_win32.c" |
1725 | # include "ev_win32.c" |
518 | #endif |
1726 | #endif |
519 | |
1727 | |
520 | /*****************************************************************************/ |
1728 | /*****************************************************************************/ |
521 | |
1729 | |
|
|
1730 | #if EV_USE_LINUXAIO |
|
|
1731 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1732 | #endif |
|
|
1733 | |
|
|
1734 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1735 | |
|
|
1736 | #if EV_USE_FLOOR |
|
|
1737 | # include <math.h> |
|
|
1738 | # define ev_floor(v) floor (v) |
|
|
1739 | #else |
|
|
1740 | |
|
|
1741 | #include <float.h> |
|
|
1742 | |
|
|
1743 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1744 | ecb_noinline |
|
|
1745 | static ev_tstamp |
|
|
1746 | ev_floor (ev_tstamp v) |
|
|
1747 | { |
|
|
1748 | /* the choice of shift factor is not terribly important */ |
|
|
1749 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1750 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1751 | #else |
|
|
1752 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1753 | #endif |
|
|
1754 | |
|
|
1755 | /* special treatment for negative arguments */ |
|
|
1756 | if (ecb_expect_false (v < 0.)) |
|
|
1757 | { |
|
|
1758 | ev_tstamp f = -ev_floor (-v); |
|
|
1759 | |
|
|
1760 | return f - (f == v ? 0 : 1); |
|
|
1761 | } |
|
|
1762 | |
|
|
1763 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1764 | if (ecb_expect_false (v >= shift)) |
|
|
1765 | { |
|
|
1766 | ev_tstamp f; |
|
|
1767 | |
|
|
1768 | if (v == v - 1.) |
|
|
1769 | return v; /* very large numbers are assumed to be integer */ |
|
|
1770 | |
|
|
1771 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1772 | return f + ev_floor (v - f); |
|
|
1773 | } |
|
|
1774 | |
|
|
1775 | /* fits into an unsigned long */ |
|
|
1776 | return (unsigned long)v; |
|
|
1777 | } |
|
|
1778 | |
|
|
1779 | #endif |
|
|
1780 | |
|
|
1781 | /*****************************************************************************/ |
|
|
1782 | |
|
|
1783 | #ifdef __linux |
|
|
1784 | # include <sys/utsname.h> |
|
|
1785 | #endif |
|
|
1786 | |
|
|
1787 | ecb_noinline ecb_cold |
|
|
1788 | static unsigned int |
|
|
1789 | ev_linux_version (void) |
|
|
1790 | { |
|
|
1791 | #ifdef __linux |
|
|
1792 | unsigned int v = 0; |
|
|
1793 | struct utsname buf; |
|
|
1794 | int i; |
|
|
1795 | char *p = buf.release; |
|
|
1796 | |
|
|
1797 | if (uname (&buf)) |
|
|
1798 | return 0; |
|
|
1799 | |
|
|
1800 | for (i = 3+1; --i; ) |
|
|
1801 | { |
|
|
1802 | unsigned int c = 0; |
|
|
1803 | |
|
|
1804 | for (;;) |
|
|
1805 | { |
|
|
1806 | if (*p >= '0' && *p <= '9') |
|
|
1807 | c = c * 10 + *p++ - '0'; |
|
|
1808 | else |
|
|
1809 | { |
|
|
1810 | p += *p == '.'; |
|
|
1811 | break; |
|
|
1812 | } |
|
|
1813 | } |
|
|
1814 | |
|
|
1815 | v = (v << 8) | c; |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | return v; |
|
|
1819 | #else |
|
|
1820 | return 0; |
|
|
1821 | #endif |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | /*****************************************************************************/ |
|
|
1825 | |
|
|
1826 | #if EV_AVOID_STDIO |
|
|
1827 | ecb_noinline ecb_cold |
|
|
1828 | static void |
|
|
1829 | ev_printerr (const char *msg) |
|
|
1830 | { |
|
|
1831 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1832 | } |
|
|
1833 | #endif |
|
|
1834 | |
522 | static void (*syserr_cb)(const char *msg); |
1835 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
523 | |
1836 | |
|
|
1837 | ecb_cold |
524 | void |
1838 | void |
525 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1839 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
526 | { |
1840 | { |
527 | syserr_cb = cb; |
1841 | syserr_cb = cb; |
528 | } |
1842 | } |
529 | |
1843 | |
530 | static void noinline |
1844 | ecb_noinline ecb_cold |
|
|
1845 | static void |
531 | ev_syserr (const char *msg) |
1846 | ev_syserr (const char *msg) |
532 | { |
1847 | { |
533 | if (!msg) |
1848 | if (!msg) |
534 | msg = "(libev) system error"; |
1849 | msg = "(libev) system error"; |
535 | |
1850 | |
536 | if (syserr_cb) |
1851 | if (syserr_cb) |
537 | syserr_cb (msg); |
1852 | syserr_cb (msg); |
538 | else |
1853 | else |
539 | { |
1854 | { |
|
|
1855 | #if EV_AVOID_STDIO |
|
|
1856 | ev_printerr (msg); |
|
|
1857 | ev_printerr (": "); |
|
|
1858 | ev_printerr (strerror (errno)); |
|
|
1859 | ev_printerr ("\n"); |
|
|
1860 | #else |
540 | perror (msg); |
1861 | perror (msg); |
|
|
1862 | #endif |
541 | abort (); |
1863 | abort (); |
542 | } |
1864 | } |
543 | } |
1865 | } |
544 | |
1866 | |
545 | static void * |
1867 | static void * |
546 | ev_realloc_emul (void *ptr, long size) |
1868 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
547 | { |
1869 | { |
548 | /* some systems, notably openbsd and darwin, fail to properly |
1870 | /* some systems, notably openbsd and darwin, fail to properly |
549 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1871 | * implement realloc (x, 0) (as required by both ansi c-89 and |
550 | * the single unix specification, so work around them here. |
1872 | * the single unix specification, so work around them here. |
|
|
1873 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1874 | * despite documenting it otherwise. |
551 | */ |
1875 | */ |
552 | |
1876 | |
553 | if (size) |
1877 | if (size) |
554 | return realloc (ptr, size); |
1878 | return realloc (ptr, size); |
555 | |
1879 | |
556 | free (ptr); |
1880 | free (ptr); |
557 | return 0; |
1881 | return 0; |
558 | } |
1882 | } |
559 | |
1883 | |
560 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1884 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
561 | |
1885 | |
|
|
1886 | ecb_cold |
562 | void |
1887 | void |
563 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1888 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
564 | { |
1889 | { |
565 | alloc = cb; |
1890 | alloc = cb; |
566 | } |
1891 | } |
567 | |
1892 | |
568 | inline_speed void * |
1893 | inline_speed void * |
… | |
… | |
570 | { |
1895 | { |
571 | ptr = alloc (ptr, size); |
1896 | ptr = alloc (ptr, size); |
572 | |
1897 | |
573 | if (!ptr && size) |
1898 | if (!ptr && size) |
574 | { |
1899 | { |
|
|
1900 | #if EV_AVOID_STDIO |
|
|
1901 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1902 | #else |
575 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1903 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1904 | #endif |
576 | abort (); |
1905 | abort (); |
577 | } |
1906 | } |
578 | |
1907 | |
579 | return ptr; |
1908 | return ptr; |
580 | } |
1909 | } |
… | |
… | |
591 | typedef struct |
1920 | typedef struct |
592 | { |
1921 | { |
593 | WL head; |
1922 | WL head; |
594 | unsigned char events; /* the events watched for */ |
1923 | unsigned char events; /* the events watched for */ |
595 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1924 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
596 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1925 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
597 | unsigned char unused; |
1926 | unsigned char eflags; /* flags field for use by backends */ |
598 | #if EV_USE_EPOLL |
1927 | #if EV_USE_EPOLL |
599 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1928 | unsigned int egen; /* generation counter to counter epoll bugs */ |
600 | #endif |
1929 | #endif |
601 | #if EV_SELECT_IS_WINSOCKET |
1930 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
602 | SOCKET handle; |
1931 | SOCKET handle; |
|
|
1932 | #endif |
|
|
1933 | #if EV_USE_IOCP |
|
|
1934 | OVERLAPPED or, ow; |
603 | #endif |
1935 | #endif |
604 | } ANFD; |
1936 | } ANFD; |
605 | |
1937 | |
606 | /* stores the pending event set for a given watcher */ |
1938 | /* stores the pending event set for a given watcher */ |
607 | typedef struct |
1939 | typedef struct |
… | |
… | |
649 | #undef VAR |
1981 | #undef VAR |
650 | }; |
1982 | }; |
651 | #include "ev_wrap.h" |
1983 | #include "ev_wrap.h" |
652 | |
1984 | |
653 | static struct ev_loop default_loop_struct; |
1985 | static struct ev_loop default_loop_struct; |
654 | struct ev_loop *ev_default_loop_ptr; |
1986 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
655 | |
1987 | |
656 | #else |
1988 | #else |
657 | |
1989 | |
658 | ev_tstamp ev_rt_now; |
1990 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
659 | #define VAR(name,decl) static decl; |
1991 | #define VAR(name,decl) static decl; |
660 | #include "ev_vars.h" |
1992 | #include "ev_vars.h" |
661 | #undef VAR |
1993 | #undef VAR |
662 | |
1994 | |
663 | static int ev_default_loop_ptr; |
1995 | static int ev_default_loop_ptr; |
664 | |
1996 | |
665 | #endif |
1997 | #endif |
666 | |
1998 | |
667 | #if EV_MINIMAL < 2 |
1999 | #if EV_FEATURE_API |
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2000 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
669 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2001 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2002 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
671 | #else |
2003 | #else |
672 | # define EV_RELEASE_CB (void)0 |
2004 | # define EV_RELEASE_CB (void)0 |
673 | # define EV_ACQUIRE_CB (void)0 |
2005 | # define EV_ACQUIRE_CB (void)0 |
674 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2006 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
675 | #endif |
2007 | #endif |
676 | |
2008 | |
677 | #define EVUNLOOP_RECURSE 0x80 |
2009 | #define EVBREAK_RECURSE 0x80 |
678 | |
2010 | |
679 | /*****************************************************************************/ |
2011 | /*****************************************************************************/ |
680 | |
2012 | |
681 | #ifndef EV_HAVE_EV_TIME |
2013 | #ifndef EV_HAVE_EV_TIME |
682 | ev_tstamp |
2014 | ev_tstamp |
683 | ev_time (void) |
2015 | ev_time (void) EV_NOEXCEPT |
684 | { |
2016 | { |
685 | #if EV_USE_REALTIME |
2017 | #if EV_USE_REALTIME |
686 | if (expect_true (have_realtime)) |
2018 | if (ecb_expect_true (have_realtime)) |
687 | { |
2019 | { |
688 | struct timespec ts; |
2020 | struct timespec ts; |
689 | clock_gettime (CLOCK_REALTIME, &ts); |
2021 | clock_gettime (CLOCK_REALTIME, &ts); |
690 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2022 | return EV_TS_GET (ts); |
691 | } |
2023 | } |
692 | #endif |
2024 | #endif |
693 | |
2025 | |
|
|
2026 | { |
694 | struct timeval tv; |
2027 | struct timeval tv; |
695 | gettimeofday (&tv, 0); |
2028 | gettimeofday (&tv, 0); |
696 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2029 | return EV_TV_GET (tv); |
|
|
2030 | } |
697 | } |
2031 | } |
698 | #endif |
2032 | #endif |
699 | |
2033 | |
700 | inline_size ev_tstamp |
2034 | inline_size ev_tstamp |
701 | get_clock (void) |
2035 | get_clock (void) |
702 | { |
2036 | { |
703 | #if EV_USE_MONOTONIC |
2037 | #if EV_USE_MONOTONIC |
704 | if (expect_true (have_monotonic)) |
2038 | if (ecb_expect_true (have_monotonic)) |
705 | { |
2039 | { |
706 | struct timespec ts; |
2040 | struct timespec ts; |
707 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2041 | clock_gettime (CLOCK_MONOTONIC, &ts); |
708 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2042 | return EV_TS_GET (ts); |
709 | } |
2043 | } |
710 | #endif |
2044 | #endif |
711 | |
2045 | |
712 | return ev_time (); |
2046 | return ev_time (); |
713 | } |
2047 | } |
714 | |
2048 | |
715 | #if EV_MULTIPLICITY |
2049 | #if EV_MULTIPLICITY |
716 | ev_tstamp |
2050 | ev_tstamp |
717 | ev_now (EV_P) |
2051 | ev_now (EV_P) EV_NOEXCEPT |
718 | { |
2052 | { |
719 | return ev_rt_now; |
2053 | return ev_rt_now; |
720 | } |
2054 | } |
721 | #endif |
2055 | #endif |
722 | |
2056 | |
723 | void |
2057 | void |
724 | ev_sleep (ev_tstamp delay) |
2058 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
725 | { |
2059 | { |
726 | if (delay > 0.) |
2060 | if (delay > EV_TS_CONST (0.)) |
727 | { |
2061 | { |
728 | #if EV_USE_NANOSLEEP |
2062 | #if EV_USE_NANOSLEEP |
729 | struct timespec ts; |
2063 | struct timespec ts; |
730 | |
2064 | |
731 | ts.tv_sec = (time_t)delay; |
2065 | EV_TS_SET (ts, delay); |
732 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
733 | |
|
|
734 | nanosleep (&ts, 0); |
2066 | nanosleep (&ts, 0); |
735 | #elif defined(_WIN32) |
2067 | #elif defined _WIN32 |
|
|
2068 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2069 | /* compared to select (µs) or nanosleep (ns) */ |
736 | Sleep ((unsigned long)(delay * 1e3)); |
2070 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
737 | #else |
2071 | #else |
738 | struct timeval tv; |
2072 | struct timeval tv; |
739 | |
|
|
740 | tv.tv_sec = (time_t)delay; |
|
|
741 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
742 | |
2073 | |
743 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2074 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
744 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2075 | /* something not guaranteed by newer posix versions, but guaranteed */ |
745 | /* by older ones */ |
2076 | /* by older ones */ |
|
|
2077 | EV_TV_SET (tv, delay); |
746 | select (0, 0, 0, 0, &tv); |
2078 | select (0, 0, 0, 0, &tv); |
747 | #endif |
2079 | #endif |
748 | } |
2080 | } |
749 | } |
2081 | } |
750 | |
2082 | |
751 | /*****************************************************************************/ |
2083 | /*****************************************************************************/ |
752 | |
2084 | |
753 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
2085 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
754 | |
2086 | |
755 | /* find a suitable new size for the given array, */ |
2087 | /* find a suitable new size for the given array, */ |
756 | /* hopefully by rounding to a ncie-to-malloc size */ |
2088 | /* hopefully by rounding to a nice-to-malloc size */ |
757 | inline_size int |
2089 | inline_size int |
758 | array_nextsize (int elem, int cur, int cnt) |
2090 | array_nextsize (int elem, int cur, int cnt) |
759 | { |
2091 | { |
760 | int ncur = cur + 1; |
2092 | int ncur = cur + 1; |
761 | |
2093 | |
762 | do |
2094 | do |
763 | ncur <<= 1; |
2095 | ncur <<= 1; |
764 | while (cnt > ncur); |
2096 | while (cnt > ncur); |
765 | |
2097 | |
766 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2098 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
767 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2099 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
768 | { |
2100 | { |
769 | ncur *= elem; |
2101 | ncur *= elem; |
770 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2102 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
771 | ncur = ncur - sizeof (void *) * 4; |
2103 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
773 | } |
2105 | } |
774 | |
2106 | |
775 | return ncur; |
2107 | return ncur; |
776 | } |
2108 | } |
777 | |
2109 | |
778 | static noinline void * |
2110 | ecb_noinline ecb_cold |
|
|
2111 | static void * |
779 | array_realloc (int elem, void *base, int *cur, int cnt) |
2112 | array_realloc (int elem, void *base, int *cur, int cnt) |
780 | { |
2113 | { |
781 | *cur = array_nextsize (elem, *cur, cnt); |
2114 | *cur = array_nextsize (elem, *cur, cnt); |
782 | return ev_realloc (base, elem * *cur); |
2115 | return ev_realloc (base, elem * *cur); |
783 | } |
2116 | } |
784 | |
2117 | |
|
|
2118 | #define array_needsize_noinit(base,offset,count) |
|
|
2119 | |
785 | #define array_init_zero(base,count) \ |
2120 | #define array_needsize_zerofill(base,offset,count) \ |
786 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2121 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
787 | |
2122 | |
788 | #define array_needsize(type,base,cur,cnt,init) \ |
2123 | #define array_needsize(type,base,cur,cnt,init) \ |
789 | if (expect_false ((cnt) > (cur))) \ |
2124 | if (ecb_expect_false ((cnt) > (cur))) \ |
790 | { \ |
2125 | { \ |
791 | int ocur_ = (cur); \ |
2126 | ecb_unused int ocur_ = (cur); \ |
792 | (base) = (type *)array_realloc \ |
2127 | (base) = (type *)array_realloc \ |
793 | (sizeof (type), (base), &(cur), (cnt)); \ |
2128 | (sizeof (type), (base), &(cur), (cnt)); \ |
794 | init ((base) + (ocur_), (cur) - ocur_); \ |
2129 | init ((base), ocur_, ((cur) - ocur_)); \ |
795 | } |
2130 | } |
796 | |
2131 | |
797 | #if 0 |
2132 | #if 0 |
798 | #define array_slim(type,stem) \ |
2133 | #define array_slim(type,stem) \ |
799 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2134 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
808 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2143 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
809 | |
2144 | |
810 | /*****************************************************************************/ |
2145 | /*****************************************************************************/ |
811 | |
2146 | |
812 | /* dummy callback for pending events */ |
2147 | /* dummy callback for pending events */ |
813 | static void noinline |
2148 | ecb_noinline |
|
|
2149 | static void |
814 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2150 | pendingcb (EV_P_ ev_prepare *w, int revents) |
815 | { |
2151 | { |
816 | } |
2152 | } |
817 | |
2153 | |
818 | void noinline |
2154 | ecb_noinline |
|
|
2155 | void |
819 | ev_feed_event (EV_P_ void *w, int revents) |
2156 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
820 | { |
2157 | { |
821 | W w_ = (W)w; |
2158 | W w_ = (W)w; |
822 | int pri = ABSPRI (w_); |
2159 | int pri = ABSPRI (w_); |
823 | |
2160 | |
824 | if (expect_false (w_->pending)) |
2161 | if (ecb_expect_false (w_->pending)) |
825 | pendings [pri][w_->pending - 1].events |= revents; |
2162 | pendings [pri][w_->pending - 1].events |= revents; |
826 | else |
2163 | else |
827 | { |
2164 | { |
828 | w_->pending = ++pendingcnt [pri]; |
2165 | w_->pending = ++pendingcnt [pri]; |
829 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2166 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
830 | pendings [pri][w_->pending - 1].w = w_; |
2167 | pendings [pri][w_->pending - 1].w = w_; |
831 | pendings [pri][w_->pending - 1].events = revents; |
2168 | pendings [pri][w_->pending - 1].events = revents; |
832 | } |
2169 | } |
|
|
2170 | |
|
|
2171 | pendingpri = NUMPRI - 1; |
833 | } |
2172 | } |
834 | |
2173 | |
835 | inline_speed void |
2174 | inline_speed void |
836 | feed_reverse (EV_P_ W w) |
2175 | feed_reverse (EV_P_ W w) |
837 | { |
2176 | { |
838 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2177 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
839 | rfeeds [rfeedcnt++] = w; |
2178 | rfeeds [rfeedcnt++] = w; |
840 | } |
2179 | } |
841 | |
2180 | |
842 | inline_size void |
2181 | inline_size void |
843 | feed_reverse_done (EV_P_ int revents) |
2182 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
857 | } |
2196 | } |
858 | |
2197 | |
859 | /*****************************************************************************/ |
2198 | /*****************************************************************************/ |
860 | |
2199 | |
861 | inline_speed void |
2200 | inline_speed void |
862 | fd_event_nc (EV_P_ int fd, int revents) |
2201 | fd_event_nocheck (EV_P_ int fd, int revents) |
863 | { |
2202 | { |
864 | ANFD *anfd = anfds + fd; |
2203 | ANFD *anfd = anfds + fd; |
865 | ev_io *w; |
2204 | ev_io *w; |
866 | |
2205 | |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2206 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
878 | inline_speed void |
2217 | inline_speed void |
879 | fd_event (EV_P_ int fd, int revents) |
2218 | fd_event (EV_P_ int fd, int revents) |
880 | { |
2219 | { |
881 | ANFD *anfd = anfds + fd; |
2220 | ANFD *anfd = anfds + fd; |
882 | |
2221 | |
883 | if (expect_true (!anfd->reify)) |
2222 | if (ecb_expect_true (!anfd->reify)) |
884 | fd_event_nc (EV_A_ fd, revents); |
2223 | fd_event_nocheck (EV_A_ fd, revents); |
885 | } |
2224 | } |
886 | |
2225 | |
887 | void |
2226 | void |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2227 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
889 | { |
2228 | { |
890 | if (fd >= 0 && fd < anfdmax) |
2229 | if (fd >= 0 && fd < anfdmax) |
891 | fd_event_nc (EV_A_ fd, revents); |
2230 | fd_event_nocheck (EV_A_ fd, revents); |
892 | } |
2231 | } |
893 | |
2232 | |
894 | /* make sure the external fd watch events are in-sync */ |
2233 | /* make sure the external fd watch events are in-sync */ |
895 | /* with the kernel/libev internal state */ |
2234 | /* with the kernel/libev internal state */ |
896 | inline_size void |
2235 | inline_size void |
897 | fd_reify (EV_P) |
2236 | fd_reify (EV_P) |
898 | { |
2237 | { |
899 | int i; |
2238 | int i; |
900 | |
2239 | |
|
|
2240 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2241 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2242 | { |
|
|
2243 | int fd = fdchanges [i]; |
|
|
2244 | ANFD *anfd = anfds + fd; |
|
|
2245 | |
|
|
2246 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2247 | { |
|
|
2248 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2249 | |
|
|
2250 | if (handle != anfd->handle) |
|
|
2251 | { |
|
|
2252 | unsigned long arg; |
|
|
2253 | |
|
|
2254 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2255 | |
|
|
2256 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2257 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2258 | anfd->events = 0; |
|
|
2259 | anfd->handle = handle; |
|
|
2260 | } |
|
|
2261 | } |
|
|
2262 | } |
|
|
2263 | #endif |
|
|
2264 | |
901 | for (i = 0; i < fdchangecnt; ++i) |
2265 | for (i = 0; i < fdchangecnt; ++i) |
902 | { |
2266 | { |
903 | int fd = fdchanges [i]; |
2267 | int fd = fdchanges [i]; |
904 | ANFD *anfd = anfds + fd; |
2268 | ANFD *anfd = anfds + fd; |
905 | ev_io *w; |
2269 | ev_io *w; |
906 | |
2270 | |
907 | unsigned char events = 0; |
2271 | unsigned char o_events = anfd->events; |
|
|
2272 | unsigned char o_reify = anfd->reify; |
908 | |
2273 | |
909 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2274 | anfd->reify = 0; |
910 | events |= (unsigned char)w->events; |
|
|
911 | |
2275 | |
912 | #if EV_SELECT_IS_WINSOCKET |
2276 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
913 | if (events) |
|
|
914 | { |
2277 | { |
915 | unsigned long arg; |
2278 | anfd->events = 0; |
916 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2279 | |
917 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
2280 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
2281 | anfd->events |= (unsigned char)w->events; |
|
|
2282 | |
|
|
2283 | if (o_events != anfd->events) |
|
|
2284 | o_reify = EV__IOFDSET; /* actually |= */ |
918 | } |
2285 | } |
919 | #endif |
|
|
920 | |
2286 | |
921 | { |
2287 | if (o_reify & EV__IOFDSET) |
922 | unsigned char o_events = anfd->events; |
|
|
923 | unsigned char o_reify = anfd->reify; |
|
|
924 | |
|
|
925 | anfd->reify = 0; |
|
|
926 | anfd->events = events; |
|
|
927 | |
|
|
928 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
929 | backend_modify (EV_A_ fd, o_events, events); |
2288 | backend_modify (EV_A_ fd, o_events, anfd->events); |
930 | } |
|
|
931 | } |
2289 | } |
932 | |
2290 | |
933 | fdchangecnt = 0; |
2291 | fdchangecnt = 0; |
934 | } |
2292 | } |
935 | |
2293 | |
936 | /* something about the given fd changed */ |
2294 | /* something about the given fd changed */ |
937 | inline_size void |
2295 | inline_size |
|
|
2296 | void |
938 | fd_change (EV_P_ int fd, int flags) |
2297 | fd_change (EV_P_ int fd, int flags) |
939 | { |
2298 | { |
940 | unsigned char reify = anfds [fd].reify; |
2299 | unsigned char reify = anfds [fd].reify; |
941 | anfds [fd].reify |= flags; |
2300 | anfds [fd].reify |= flags; |
942 | |
2301 | |
943 | if (expect_true (!reify)) |
2302 | if (ecb_expect_true (!reify)) |
944 | { |
2303 | { |
945 | ++fdchangecnt; |
2304 | ++fdchangecnt; |
946 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2305 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
947 | fdchanges [fdchangecnt - 1] = fd; |
2306 | fdchanges [fdchangecnt - 1] = fd; |
948 | } |
2307 | } |
949 | } |
2308 | } |
950 | |
2309 | |
951 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2310 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
952 | inline_speed void |
2311 | inline_speed ecb_cold void |
953 | fd_kill (EV_P_ int fd) |
2312 | fd_kill (EV_P_ int fd) |
954 | { |
2313 | { |
955 | ev_io *w; |
2314 | ev_io *w; |
956 | |
2315 | |
957 | while ((w = (ev_io *)anfds [fd].head)) |
2316 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
959 | ev_io_stop (EV_A_ w); |
2318 | ev_io_stop (EV_A_ w); |
960 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2319 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
961 | } |
2320 | } |
962 | } |
2321 | } |
963 | |
2322 | |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
2323 | /* check whether the given fd is actually valid, for error recovery */ |
965 | inline_size int |
2324 | inline_size ecb_cold int |
966 | fd_valid (int fd) |
2325 | fd_valid (int fd) |
967 | { |
2326 | { |
968 | #ifdef _WIN32 |
2327 | #ifdef _WIN32 |
969 | return _get_osfhandle (fd) != -1; |
2328 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
970 | #else |
2329 | #else |
971 | return fcntl (fd, F_GETFD) != -1; |
2330 | return fcntl (fd, F_GETFD) != -1; |
972 | #endif |
2331 | #endif |
973 | } |
2332 | } |
974 | |
2333 | |
975 | /* called on EBADF to verify fds */ |
2334 | /* called on EBADF to verify fds */ |
976 | static void noinline |
2335 | ecb_noinline ecb_cold |
|
|
2336 | static void |
977 | fd_ebadf (EV_P) |
2337 | fd_ebadf (EV_P) |
978 | { |
2338 | { |
979 | int fd; |
2339 | int fd; |
980 | |
2340 | |
981 | for (fd = 0; fd < anfdmax; ++fd) |
2341 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
983 | if (!fd_valid (fd) && errno == EBADF) |
2343 | if (!fd_valid (fd) && errno == EBADF) |
984 | fd_kill (EV_A_ fd); |
2344 | fd_kill (EV_A_ fd); |
985 | } |
2345 | } |
986 | |
2346 | |
987 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2347 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
988 | static void noinline |
2348 | ecb_noinline ecb_cold |
|
|
2349 | static void |
989 | fd_enomem (EV_P) |
2350 | fd_enomem (EV_P) |
990 | { |
2351 | { |
991 | int fd; |
2352 | int fd; |
992 | |
2353 | |
993 | for (fd = anfdmax; fd--; ) |
2354 | for (fd = anfdmax; fd--; ) |
… | |
… | |
997 | break; |
2358 | break; |
998 | } |
2359 | } |
999 | } |
2360 | } |
1000 | |
2361 | |
1001 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2362 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1002 | static void noinline |
2363 | ecb_noinline |
|
|
2364 | static void |
1003 | fd_rearm_all (EV_P) |
2365 | fd_rearm_all (EV_P) |
1004 | { |
2366 | { |
1005 | int fd; |
2367 | int fd; |
1006 | |
2368 | |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
2369 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1011 | anfds [fd].emask = 0; |
2373 | anfds [fd].emask = 0; |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
2374 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1013 | } |
2375 | } |
1014 | } |
2376 | } |
1015 | |
2377 | |
|
|
2378 | /* used to prepare libev internal fd's */ |
|
|
2379 | /* this is not fork-safe */ |
|
|
2380 | inline_speed void |
|
|
2381 | fd_intern (int fd) |
|
|
2382 | { |
|
|
2383 | #ifdef _WIN32 |
|
|
2384 | unsigned long arg = 1; |
|
|
2385 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2386 | #else |
|
|
2387 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2388 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2389 | #endif |
|
|
2390 | } |
|
|
2391 | |
1016 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
1017 | |
2393 | |
1018 | /* |
2394 | /* |
1019 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2395 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1020 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2396 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1021 | * the branching factor of the d-tree. |
2397 | * the branching factor of the d-tree. |
1022 | */ |
2398 | */ |
1023 | |
2399 | |
1024 | /* |
2400 | /* |
… | |
… | |
1046 | ev_tstamp minat; |
2422 | ev_tstamp minat; |
1047 | ANHE *minpos; |
2423 | ANHE *minpos; |
1048 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2424 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1049 | |
2425 | |
1050 | /* find minimum child */ |
2426 | /* find minimum child */ |
1051 | if (expect_true (pos + DHEAP - 1 < E)) |
2427 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1052 | { |
2428 | { |
1053 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2429 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1054 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2430 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1055 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2431 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1056 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2432 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1057 | } |
2433 | } |
1058 | else if (pos < E) |
2434 | else if (pos < E) |
1059 | { |
2435 | { |
1060 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2436 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1061 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2437 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1062 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2438 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1063 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2439 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1064 | } |
2440 | } |
1065 | else |
2441 | else |
1066 | break; |
2442 | break; |
1067 | |
2443 | |
1068 | if (ANHE_at (he) <= minat) |
2444 | if (ANHE_at (he) <= minat) |
… | |
… | |
1076 | |
2452 | |
1077 | heap [k] = he; |
2453 | heap [k] = he; |
1078 | ev_active (ANHE_w (he)) = k; |
2454 | ev_active (ANHE_w (he)) = k; |
1079 | } |
2455 | } |
1080 | |
2456 | |
1081 | #else /* 4HEAP */ |
2457 | #else /* not 4HEAP */ |
1082 | |
2458 | |
1083 | #define HEAP0 1 |
2459 | #define HEAP0 1 |
1084 | #define HPARENT(k) ((k) >> 1) |
2460 | #define HPARENT(k) ((k) >> 1) |
1085 | #define UPHEAP_DONE(p,k) (!(p)) |
2461 | #define UPHEAP_DONE(p,k) (!(p)) |
1086 | |
2462 | |
… | |
… | |
1172 | |
2548 | |
1173 | static ANSIG signals [EV_NSIG - 1]; |
2549 | static ANSIG signals [EV_NSIG - 1]; |
1174 | |
2550 | |
1175 | /*****************************************************************************/ |
2551 | /*****************************************************************************/ |
1176 | |
2552 | |
1177 | /* used to prepare libev internal fd's */ |
2553 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1178 | /* this is not fork-safe */ |
2554 | |
|
|
2555 | ecb_noinline ecb_cold |
|
|
2556 | static void |
|
|
2557 | evpipe_init (EV_P) |
|
|
2558 | { |
|
|
2559 | if (!ev_is_active (&pipe_w)) |
|
|
2560 | { |
|
|
2561 | int fds [2]; |
|
|
2562 | |
|
|
2563 | # if EV_USE_EVENTFD |
|
|
2564 | fds [0] = -1; |
|
|
2565 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2566 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2567 | fds [1] = eventfd (0, 0); |
|
|
2568 | |
|
|
2569 | if (fds [1] < 0) |
|
|
2570 | # endif |
|
|
2571 | { |
|
|
2572 | while (pipe (fds)) |
|
|
2573 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2574 | |
|
|
2575 | fd_intern (fds [0]); |
|
|
2576 | } |
|
|
2577 | |
|
|
2578 | evpipe [0] = fds [0]; |
|
|
2579 | |
|
|
2580 | if (evpipe [1] < 0) |
|
|
2581 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2582 | else |
|
|
2583 | { |
|
|
2584 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2585 | /* so that evpipe_write can always rely on its value. */ |
|
|
2586 | /* this branch does not do anything sensible on windows, */ |
|
|
2587 | /* so must not be executed on windows */ |
|
|
2588 | |
|
|
2589 | dup2 (fds [1], evpipe [1]); |
|
|
2590 | close (fds [1]); |
|
|
2591 | } |
|
|
2592 | |
|
|
2593 | fd_intern (evpipe [1]); |
|
|
2594 | |
|
|
2595 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2596 | ev_io_start (EV_A_ &pipe_w); |
|
|
2597 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2598 | } |
|
|
2599 | } |
|
|
2600 | |
1179 | inline_speed void |
2601 | inline_speed void |
1180 | fd_intern (int fd) |
2602 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1181 | { |
2603 | { |
1182 | #ifdef _WIN32 |
2604 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1183 | unsigned long arg = 1; |
|
|
1184 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1185 | #else |
|
|
1186 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1187 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1188 | #endif |
|
|
1189 | } |
|
|
1190 | |
2605 | |
1191 | static void noinline |
2606 | if (ecb_expect_true (*flag)) |
1192 | evpipe_init (EV_P) |
2607 | return; |
1193 | { |
2608 | |
1194 | if (!ev_is_active (&pipe_w)) |
2609 | *flag = 1; |
|
|
2610 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2611 | |
|
|
2612 | pipe_write_skipped = 1; |
|
|
2613 | |
|
|
2614 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2615 | |
|
|
2616 | if (pipe_write_wanted) |
1195 | { |
2617 | { |
|
|
2618 | int old_errno; |
|
|
2619 | |
|
|
2620 | pipe_write_skipped = 0; |
|
|
2621 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2622 | |
|
|
2623 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2624 | |
1196 | #if EV_USE_EVENTFD |
2625 | #if EV_USE_EVENTFD |
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2626 | if (evpipe [0] < 0) |
1198 | if (evfd < 0 && errno == EINVAL) |
|
|
1199 | evfd = eventfd (0, 0); |
|
|
1200 | |
|
|
1201 | if (evfd >= 0) |
|
|
1202 | { |
2627 | { |
1203 | evpipe [0] = -1; |
2628 | uint64_t counter = 1; |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2629 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1206 | } |
2630 | } |
1207 | else |
2631 | else |
1208 | #endif |
2632 | #endif |
1209 | { |
2633 | { |
1210 | while (pipe (evpipe)) |
2634 | #ifdef _WIN32 |
1211 | ev_syserr ("(libev) error creating signal/async pipe"); |
2635 | WSABUF buf; |
1212 | |
2636 | DWORD sent; |
1213 | fd_intern (evpipe [0]); |
2637 | buf.buf = (char *)&buf; |
1214 | fd_intern (evpipe [1]); |
2638 | buf.len = 1; |
1215 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2639 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2640 | #else |
|
|
2641 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2642 | #endif |
1216 | } |
2643 | } |
1217 | |
|
|
1218 | ev_io_start (EV_A_ &pipe_w); |
|
|
1219 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | inline_size void |
|
|
1224 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1225 | { |
|
|
1226 | if (!*flag) |
|
|
1227 | { |
|
|
1228 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1229 | |
|
|
1230 | *flag = 1; |
|
|
1231 | |
|
|
1232 | #if EV_USE_EVENTFD |
|
|
1233 | if (evfd >= 0) |
|
|
1234 | { |
|
|
1235 | uint64_t counter = 1; |
|
|
1236 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1237 | } |
|
|
1238 | else |
|
|
1239 | #endif |
|
|
1240 | write (evpipe [1], &old_errno, 1); |
|
|
1241 | |
2644 | |
1242 | errno = old_errno; |
2645 | errno = old_errno; |
1243 | } |
2646 | } |
1244 | } |
2647 | } |
1245 | |
2648 | |
… | |
… | |
1248 | static void |
2651 | static void |
1249 | pipecb (EV_P_ ev_io *iow, int revents) |
2652 | pipecb (EV_P_ ev_io *iow, int revents) |
1250 | { |
2653 | { |
1251 | int i; |
2654 | int i; |
1252 | |
2655 | |
|
|
2656 | if (revents & EV_READ) |
|
|
2657 | { |
1253 | #if EV_USE_EVENTFD |
2658 | #if EV_USE_EVENTFD |
1254 | if (evfd >= 0) |
2659 | if (evpipe [0] < 0) |
1255 | { |
2660 | { |
1256 | uint64_t counter; |
2661 | uint64_t counter; |
1257 | read (evfd, &counter, sizeof (uint64_t)); |
2662 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1258 | } |
2663 | } |
1259 | else |
2664 | else |
1260 | #endif |
2665 | #endif |
1261 | { |
2666 | { |
1262 | char dummy; |
2667 | char dummy[4]; |
|
|
2668 | #ifdef _WIN32 |
|
|
2669 | WSABUF buf; |
|
|
2670 | DWORD recvd; |
|
|
2671 | DWORD flags = 0; |
|
|
2672 | buf.buf = dummy; |
|
|
2673 | buf.len = sizeof (dummy); |
|
|
2674 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2675 | #else |
1263 | read (evpipe [0], &dummy, 1); |
2676 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2677 | #endif |
|
|
2678 | } |
1264 | } |
2679 | } |
1265 | |
2680 | |
|
|
2681 | pipe_write_skipped = 0; |
|
|
2682 | |
|
|
2683 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2684 | |
|
|
2685 | #if EV_SIGNAL_ENABLE |
1266 | if (sig_pending) |
2686 | if (sig_pending) |
1267 | { |
2687 | { |
1268 | sig_pending = 0; |
2688 | sig_pending = 0; |
1269 | |
2689 | |
|
|
2690 | ECB_MEMORY_FENCE; |
|
|
2691 | |
1270 | for (i = EV_NSIG - 1; i--; ) |
2692 | for (i = EV_NSIG - 1; i--; ) |
1271 | if (expect_false (signals [i].pending)) |
2693 | if (ecb_expect_false (signals [i].pending)) |
1272 | ev_feed_signal_event (EV_A_ i + 1); |
2694 | ev_feed_signal_event (EV_A_ i + 1); |
1273 | } |
2695 | } |
|
|
2696 | #endif |
1274 | |
2697 | |
1275 | #if EV_ASYNC_ENABLE |
2698 | #if EV_ASYNC_ENABLE |
1276 | if (async_pending) |
2699 | if (async_pending) |
1277 | { |
2700 | { |
1278 | async_pending = 0; |
2701 | async_pending = 0; |
|
|
2702 | |
|
|
2703 | ECB_MEMORY_FENCE; |
1279 | |
2704 | |
1280 | for (i = asynccnt; i--; ) |
2705 | for (i = asynccnt; i--; ) |
1281 | if (asyncs [i]->sent) |
2706 | if (asyncs [i]->sent) |
1282 | { |
2707 | { |
1283 | asyncs [i]->sent = 0; |
2708 | asyncs [i]->sent = 0; |
|
|
2709 | ECB_MEMORY_FENCE_RELEASE; |
1284 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2710 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1285 | } |
2711 | } |
1286 | } |
2712 | } |
1287 | #endif |
2713 | #endif |
1288 | } |
2714 | } |
1289 | |
2715 | |
1290 | /*****************************************************************************/ |
2716 | /*****************************************************************************/ |
1291 | |
2717 | |
|
|
2718 | void |
|
|
2719 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2720 | { |
|
|
2721 | #if EV_MULTIPLICITY |
|
|
2722 | EV_P; |
|
|
2723 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2724 | EV_A = signals [signum - 1].loop; |
|
|
2725 | |
|
|
2726 | if (!EV_A) |
|
|
2727 | return; |
|
|
2728 | #endif |
|
|
2729 | |
|
|
2730 | signals [signum - 1].pending = 1; |
|
|
2731 | evpipe_write (EV_A_ &sig_pending); |
|
|
2732 | } |
|
|
2733 | |
1292 | static void |
2734 | static void |
1293 | ev_sighandler (int signum) |
2735 | ev_sighandler (int signum) |
1294 | { |
2736 | { |
1295 | #if EV_MULTIPLICITY |
|
|
1296 | EV_P = signals [signum - 1].loop; |
|
|
1297 | #endif |
|
|
1298 | |
|
|
1299 | #if _WIN32 |
2737 | #ifdef _WIN32 |
1300 | signal (signum, ev_sighandler); |
2738 | signal (signum, ev_sighandler); |
1301 | #endif |
2739 | #endif |
1302 | |
2740 | |
1303 | signals [signum - 1].pending = 1; |
2741 | ev_feed_signal (signum); |
1304 | evpipe_write (EV_A_ &sig_pending); |
|
|
1305 | } |
2742 | } |
1306 | |
2743 | |
1307 | void noinline |
2744 | ecb_noinline |
|
|
2745 | void |
1308 | ev_feed_signal_event (EV_P_ int signum) |
2746 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1309 | { |
2747 | { |
1310 | WL w; |
2748 | WL w; |
1311 | |
2749 | |
1312 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2750 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1313 | return; |
2751 | return; |
1314 | |
2752 | |
1315 | --signum; |
2753 | --signum; |
1316 | |
2754 | |
1317 | #if EV_MULTIPLICITY |
2755 | #if EV_MULTIPLICITY |
1318 | /* it is permissible to try to feed a signal to the wrong loop */ |
2756 | /* it is permissible to try to feed a signal to the wrong loop */ |
1319 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2757 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1320 | |
2758 | |
1321 | if (expect_false (signals [signum].loop != EV_A)) |
2759 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1322 | return; |
2760 | return; |
1323 | #endif |
2761 | #endif |
1324 | |
2762 | |
1325 | signals [signum].pending = 0; |
2763 | signals [signum].pending = 0; |
|
|
2764 | ECB_MEMORY_FENCE_RELEASE; |
1326 | |
2765 | |
1327 | for (w = signals [signum].head; w; w = w->next) |
2766 | for (w = signals [signum].head; w; w = w->next) |
1328 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2767 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1329 | } |
2768 | } |
1330 | |
2769 | |
… | |
… | |
1346 | break; |
2785 | break; |
1347 | } |
2786 | } |
1348 | } |
2787 | } |
1349 | #endif |
2788 | #endif |
1350 | |
2789 | |
|
|
2790 | #endif |
|
|
2791 | |
1351 | /*****************************************************************************/ |
2792 | /*****************************************************************************/ |
1352 | |
2793 | |
|
|
2794 | #if EV_CHILD_ENABLE |
1353 | static WL childs [EV_PID_HASHSIZE]; |
2795 | static WL childs [EV_PID_HASHSIZE]; |
1354 | |
|
|
1355 | #ifndef _WIN32 |
|
|
1356 | |
2796 | |
1357 | static ev_signal childev; |
2797 | static ev_signal childev; |
1358 | |
2798 | |
1359 | #ifndef WIFCONTINUED |
2799 | #ifndef WIFCONTINUED |
1360 | # define WIFCONTINUED(status) 0 |
2800 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1365 | child_reap (EV_P_ int chain, int pid, int status) |
2805 | child_reap (EV_P_ int chain, int pid, int status) |
1366 | { |
2806 | { |
1367 | ev_child *w; |
2807 | ev_child *w; |
1368 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2808 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1369 | |
2809 | |
1370 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2810 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1371 | { |
2811 | { |
1372 | if ((w->pid == pid || !w->pid) |
2812 | if ((w->pid == pid || !w->pid) |
1373 | && (!traced || (w->flags & 1))) |
2813 | && (!traced || (w->flags & 1))) |
1374 | { |
2814 | { |
1375 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2815 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1400 | /* make sure we are called again until all children have been reaped */ |
2840 | /* make sure we are called again until all children have been reaped */ |
1401 | /* we need to do it this way so that the callback gets called before we continue */ |
2841 | /* we need to do it this way so that the callback gets called before we continue */ |
1402 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2842 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1403 | |
2843 | |
1404 | child_reap (EV_A_ pid, pid, status); |
2844 | child_reap (EV_A_ pid, pid, status); |
1405 | if (EV_PID_HASHSIZE > 1) |
2845 | if ((EV_PID_HASHSIZE) > 1) |
1406 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2846 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1407 | } |
2847 | } |
1408 | |
2848 | |
1409 | #endif |
2849 | #endif |
1410 | |
2850 | |
1411 | /*****************************************************************************/ |
2851 | /*****************************************************************************/ |
1412 | |
2852 | |
|
|
2853 | #if EV_USE_IOCP |
|
|
2854 | # include "ev_iocp.c" |
|
|
2855 | #endif |
1413 | #if EV_USE_PORT |
2856 | #if EV_USE_PORT |
1414 | # include "ev_port.c" |
2857 | # include "ev_port.c" |
1415 | #endif |
2858 | #endif |
1416 | #if EV_USE_KQUEUE |
2859 | #if EV_USE_KQUEUE |
1417 | # include "ev_kqueue.c" |
2860 | # include "ev_kqueue.c" |
1418 | #endif |
2861 | #endif |
1419 | #if EV_USE_EPOLL |
2862 | #if EV_USE_EPOLL |
1420 | # include "ev_epoll.c" |
2863 | # include "ev_epoll.c" |
1421 | #endif |
2864 | #endif |
|
|
2865 | #if EV_USE_LINUXAIO |
|
|
2866 | # include "ev_linuxaio.c" |
|
|
2867 | #endif |
|
|
2868 | #if EV_USE_IOURING |
|
|
2869 | # include "ev_iouring.c" |
|
|
2870 | #endif |
1422 | #if EV_USE_POLL |
2871 | #if EV_USE_POLL |
1423 | # include "ev_poll.c" |
2872 | # include "ev_poll.c" |
1424 | #endif |
2873 | #endif |
1425 | #if EV_USE_SELECT |
2874 | #if EV_USE_SELECT |
1426 | # include "ev_select.c" |
2875 | # include "ev_select.c" |
1427 | #endif |
2876 | #endif |
1428 | |
2877 | |
1429 | int |
2878 | ecb_cold int |
1430 | ev_version_major (void) |
2879 | ev_version_major (void) EV_NOEXCEPT |
1431 | { |
2880 | { |
1432 | return EV_VERSION_MAJOR; |
2881 | return EV_VERSION_MAJOR; |
1433 | } |
2882 | } |
1434 | |
2883 | |
1435 | int |
2884 | ecb_cold int |
1436 | ev_version_minor (void) |
2885 | ev_version_minor (void) EV_NOEXCEPT |
1437 | { |
2886 | { |
1438 | return EV_VERSION_MINOR; |
2887 | return EV_VERSION_MINOR; |
1439 | } |
2888 | } |
1440 | |
2889 | |
1441 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2890 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1442 | int inline_size |
2891 | inline_size ecb_cold int |
1443 | enable_secure (void) |
2892 | enable_secure (void) |
1444 | { |
2893 | { |
1445 | #ifdef _WIN32 |
2894 | #ifdef _WIN32 |
1446 | return 0; |
2895 | return 0; |
1447 | #else |
2896 | #else |
1448 | return getuid () != geteuid () |
2897 | return getuid () != geteuid () |
1449 | || getgid () != getegid (); |
2898 | || getgid () != getegid (); |
1450 | #endif |
2899 | #endif |
1451 | } |
2900 | } |
1452 | |
2901 | |
|
|
2902 | ecb_cold |
1453 | unsigned int |
2903 | unsigned int |
1454 | ev_supported_backends (void) |
2904 | ev_supported_backends (void) EV_NOEXCEPT |
1455 | { |
2905 | { |
1456 | unsigned int flags = 0; |
2906 | unsigned int flags = 0; |
1457 | |
2907 | |
1458 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2908 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1459 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2909 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1460 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2910 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2911 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2912 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
1461 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2913 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1462 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2914 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1463 | |
2915 | |
1464 | return flags; |
2916 | return flags; |
1465 | } |
2917 | } |
1466 | |
2918 | |
|
|
2919 | ecb_cold |
1467 | unsigned int |
2920 | unsigned int |
1468 | ev_recommended_backends (void) |
2921 | ev_recommended_backends (void) EV_NOEXCEPT |
1469 | { |
2922 | { |
1470 | unsigned int flags = ev_supported_backends (); |
2923 | unsigned int flags = ev_supported_backends (); |
1471 | |
2924 | |
1472 | #ifndef __NetBSD__ |
2925 | #ifndef __NetBSD__ |
1473 | /* kqueue is borked on everything but netbsd apparently */ |
2926 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1477 | #ifdef __APPLE__ |
2930 | #ifdef __APPLE__ |
1478 | /* only select works correctly on that "unix-certified" platform */ |
2931 | /* only select works correctly on that "unix-certified" platform */ |
1479 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2932 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1480 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2933 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1481 | #endif |
2934 | #endif |
|
|
2935 | #ifdef __FreeBSD__ |
|
|
2936 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2937 | #endif |
|
|
2938 | |
|
|
2939 | /* TODO: linuxaio is very experimental */ |
|
|
2940 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2941 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2942 | #endif |
|
|
2943 | /* TODO: linuxaio is super experimental */ |
|
|
2944 | #if !EV_RECOMMEND_IOURING |
|
|
2945 | flags &= ~EVBACKEND_IOURING; |
|
|
2946 | #endif |
1482 | |
2947 | |
1483 | return flags; |
2948 | return flags; |
1484 | } |
2949 | } |
1485 | |
2950 | |
|
|
2951 | ecb_cold |
1486 | unsigned int |
2952 | unsigned int |
1487 | ev_embeddable_backends (void) |
2953 | ev_embeddable_backends (void) EV_NOEXCEPT |
1488 | { |
2954 | { |
1489 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2955 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1490 | |
2956 | |
1491 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2957 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1492 | /* please fix it and tell me how to detect the fix */ |
2958 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1493 | flags &= ~EVBACKEND_EPOLL; |
2959 | flags &= ~EVBACKEND_EPOLL; |
|
|
2960 | |
|
|
2961 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2962 | |
|
|
2963 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2964 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2965 | * if the kernel ever is fixed, this might change... |
|
|
2966 | */ |
1494 | |
2967 | |
1495 | return flags; |
2968 | return flags; |
1496 | } |
2969 | } |
1497 | |
2970 | |
1498 | unsigned int |
2971 | unsigned int |
1499 | ev_backend (EV_P) |
2972 | ev_backend (EV_P) EV_NOEXCEPT |
1500 | { |
2973 | { |
1501 | return backend; |
2974 | return backend; |
1502 | } |
2975 | } |
1503 | |
2976 | |
1504 | #if EV_MINIMAL < 2 |
2977 | #if EV_FEATURE_API |
1505 | unsigned int |
2978 | unsigned int |
1506 | ev_loop_count (EV_P) |
2979 | ev_iteration (EV_P) EV_NOEXCEPT |
1507 | { |
2980 | { |
1508 | return loop_count; |
2981 | return loop_count; |
1509 | } |
2982 | } |
1510 | |
2983 | |
1511 | unsigned int |
2984 | unsigned int |
1512 | ev_loop_depth (EV_P) |
2985 | ev_depth (EV_P) EV_NOEXCEPT |
1513 | { |
2986 | { |
1514 | return loop_depth; |
2987 | return loop_depth; |
1515 | } |
2988 | } |
1516 | |
2989 | |
1517 | void |
2990 | void |
1518 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2991 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1519 | { |
2992 | { |
1520 | io_blocktime = interval; |
2993 | io_blocktime = interval; |
1521 | } |
2994 | } |
1522 | |
2995 | |
1523 | void |
2996 | void |
1524 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2997 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1525 | { |
2998 | { |
1526 | timeout_blocktime = interval; |
2999 | timeout_blocktime = interval; |
1527 | } |
3000 | } |
1528 | |
3001 | |
1529 | void |
3002 | void |
1530 | ev_set_userdata (EV_P_ void *data) |
3003 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1531 | { |
3004 | { |
1532 | userdata = data; |
3005 | userdata = data; |
1533 | } |
3006 | } |
1534 | |
3007 | |
1535 | void * |
3008 | void * |
1536 | ev_userdata (EV_P) |
3009 | ev_userdata (EV_P) EV_NOEXCEPT |
1537 | { |
3010 | { |
1538 | return userdata; |
3011 | return userdata; |
1539 | } |
3012 | } |
1540 | |
3013 | |
|
|
3014 | void |
1541 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
3015 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1542 | { |
3016 | { |
1543 | invoke_cb = invoke_pending_cb; |
3017 | invoke_cb = invoke_pending_cb; |
1544 | } |
3018 | } |
1545 | |
3019 | |
|
|
3020 | void |
1546 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
3021 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1547 | { |
3022 | { |
1548 | release_cb = release; |
3023 | release_cb = release; |
1549 | acquire_cb = acquire; |
3024 | acquire_cb = acquire; |
1550 | } |
3025 | } |
1551 | #endif |
3026 | #endif |
1552 | |
3027 | |
1553 | /* initialise a loop structure, must be zero-initialised */ |
3028 | /* initialise a loop structure, must be zero-initialised */ |
1554 | static void noinline |
3029 | ecb_noinline ecb_cold |
|
|
3030 | static void |
1555 | loop_init (EV_P_ unsigned int flags) |
3031 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1556 | { |
3032 | { |
1557 | if (!backend) |
3033 | if (!backend) |
1558 | { |
3034 | { |
|
|
3035 | origflags = flags; |
|
|
3036 | |
1559 | #if EV_USE_REALTIME |
3037 | #if EV_USE_REALTIME |
1560 | if (!have_realtime) |
3038 | if (!have_realtime) |
1561 | { |
3039 | { |
1562 | struct timespec ts; |
3040 | struct timespec ts; |
1563 | |
3041 | |
… | |
… | |
1585 | if (!(flags & EVFLAG_NOENV) |
3063 | if (!(flags & EVFLAG_NOENV) |
1586 | && !enable_secure () |
3064 | && !enable_secure () |
1587 | && getenv ("LIBEV_FLAGS")) |
3065 | && getenv ("LIBEV_FLAGS")) |
1588 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3066 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1589 | |
3067 | |
1590 | ev_rt_now = ev_time (); |
3068 | ev_rt_now = ev_time (); |
1591 | mn_now = get_clock (); |
3069 | mn_now = get_clock (); |
1592 | now_floor = mn_now; |
3070 | now_floor = mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
3071 | rtmn_diff = ev_rt_now - mn_now; |
1594 | #if EV_MINIMAL < 2 |
3072 | #if EV_FEATURE_API |
1595 | invoke_cb = ev_invoke_pending; |
3073 | invoke_cb = ev_invoke_pending; |
1596 | #endif |
3074 | #endif |
1597 | |
3075 | |
1598 | io_blocktime = 0.; |
3076 | io_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
3077 | timeout_blocktime = 0.; |
1600 | backend = 0; |
3078 | backend = 0; |
1601 | backend_fd = -1; |
3079 | backend_fd = -1; |
1602 | sig_pending = 0; |
3080 | sig_pending = 0; |
1603 | #if EV_ASYNC_ENABLE |
3081 | #if EV_ASYNC_ENABLE |
1604 | async_pending = 0; |
3082 | async_pending = 0; |
1605 | #endif |
3083 | #endif |
|
|
3084 | pipe_write_skipped = 0; |
|
|
3085 | pipe_write_wanted = 0; |
|
|
3086 | evpipe [0] = -1; |
|
|
3087 | evpipe [1] = -1; |
1606 | #if EV_USE_INOTIFY |
3088 | #if EV_USE_INOTIFY |
1607 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3089 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1608 | #endif |
3090 | #endif |
1609 | #if EV_USE_SIGNALFD |
3091 | #if EV_USE_SIGNALFD |
1610 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
3092 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1611 | #endif |
3093 | #endif |
1612 | |
3094 | |
1613 | if (!(flags & 0x0000ffffU)) |
3095 | if (!(flags & EVBACKEND_MASK)) |
1614 | flags |= ev_recommended_backends (); |
3096 | flags |= ev_recommended_backends (); |
1615 | |
3097 | |
|
|
3098 | #if EV_USE_IOCP |
|
|
3099 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
3100 | #endif |
1616 | #if EV_USE_PORT |
3101 | #if EV_USE_PORT |
1617 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3102 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1618 | #endif |
3103 | #endif |
1619 | #if EV_USE_KQUEUE |
3104 | #if EV_USE_KQUEUE |
1620 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3105 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3106 | #endif |
|
|
3107 | #if EV_USE_IOURING |
|
|
3108 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3109 | #endif |
|
|
3110 | #if EV_USE_LINUXAIO |
|
|
3111 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1621 | #endif |
3112 | #endif |
1622 | #if EV_USE_EPOLL |
3113 | #if EV_USE_EPOLL |
1623 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3114 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1624 | #endif |
3115 | #endif |
1625 | #if EV_USE_POLL |
3116 | #if EV_USE_POLL |
1626 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3117 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1627 | #endif |
3118 | #endif |
1628 | #if EV_USE_SELECT |
3119 | #if EV_USE_SELECT |
1629 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3120 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1630 | #endif |
3121 | #endif |
1631 | |
3122 | |
1632 | ev_prepare_init (&pending_w, pendingcb); |
3123 | ev_prepare_init (&pending_w, pendingcb); |
1633 | |
3124 | |
|
|
3125 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1634 | ev_init (&pipe_w, pipecb); |
3126 | ev_init (&pipe_w, pipecb); |
1635 | ev_set_priority (&pipe_w, EV_MAXPRI); |
3127 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
3128 | #endif |
1636 | } |
3129 | } |
1637 | } |
3130 | } |
1638 | |
3131 | |
1639 | /* free up a loop structure */ |
3132 | /* free up a loop structure */ |
1640 | static void noinline |
3133 | ecb_cold |
|
|
3134 | void |
1641 | loop_destroy (EV_P) |
3135 | ev_loop_destroy (EV_P) |
1642 | { |
3136 | { |
1643 | int i; |
3137 | int i; |
|
|
3138 | |
|
|
3139 | #if EV_MULTIPLICITY |
|
|
3140 | /* mimic free (0) */ |
|
|
3141 | if (!EV_A) |
|
|
3142 | return; |
|
|
3143 | #endif |
|
|
3144 | |
|
|
3145 | #if EV_CLEANUP_ENABLE |
|
|
3146 | /* queue cleanup watchers (and execute them) */ |
|
|
3147 | if (ecb_expect_false (cleanupcnt)) |
|
|
3148 | { |
|
|
3149 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3150 | EV_INVOKE_PENDING; |
|
|
3151 | } |
|
|
3152 | #endif |
|
|
3153 | |
|
|
3154 | #if EV_CHILD_ENABLE |
|
|
3155 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3156 | { |
|
|
3157 | ev_ref (EV_A); /* child watcher */ |
|
|
3158 | ev_signal_stop (EV_A_ &childev); |
|
|
3159 | } |
|
|
3160 | #endif |
1644 | |
3161 | |
1645 | if (ev_is_active (&pipe_w)) |
3162 | if (ev_is_active (&pipe_w)) |
1646 | { |
3163 | { |
1647 | /*ev_ref (EV_A);*/ |
3164 | /*ev_ref (EV_A);*/ |
1648 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3165 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1649 | |
3166 | |
1650 | #if EV_USE_EVENTFD |
|
|
1651 | if (evfd >= 0) |
|
|
1652 | close (evfd); |
|
|
1653 | #endif |
|
|
1654 | |
|
|
1655 | if (evpipe [0] >= 0) |
|
|
1656 | { |
|
|
1657 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3167 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1658 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3168 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1659 | } |
|
|
1660 | } |
3169 | } |
1661 | |
3170 | |
1662 | #if EV_USE_SIGNALFD |
3171 | #if EV_USE_SIGNALFD |
1663 | if (ev_is_active (&sigfd_w)) |
3172 | if (ev_is_active (&sigfd_w)) |
1664 | { |
|
|
1665 | /*ev_ref (EV_A);*/ |
|
|
1666 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1667 | |
|
|
1668 | close (sigfd); |
3173 | close (sigfd); |
1669 | } |
|
|
1670 | #endif |
3174 | #endif |
1671 | |
3175 | |
1672 | #if EV_USE_INOTIFY |
3176 | #if EV_USE_INOTIFY |
1673 | if (fs_fd >= 0) |
3177 | if (fs_fd >= 0) |
1674 | close (fs_fd); |
3178 | close (fs_fd); |
1675 | #endif |
3179 | #endif |
1676 | |
3180 | |
1677 | if (backend_fd >= 0) |
3181 | if (backend_fd >= 0) |
1678 | close (backend_fd); |
3182 | close (backend_fd); |
1679 | |
3183 | |
|
|
3184 | #if EV_USE_IOCP |
|
|
3185 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3186 | #endif |
1680 | #if EV_USE_PORT |
3187 | #if EV_USE_PORT |
1681 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3188 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1682 | #endif |
3189 | #endif |
1683 | #if EV_USE_KQUEUE |
3190 | #if EV_USE_KQUEUE |
1684 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3191 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3192 | #endif |
|
|
3193 | #if EV_USE_IOURING |
|
|
3194 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3195 | #endif |
|
|
3196 | #if EV_USE_LINUXAIO |
|
|
3197 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1685 | #endif |
3198 | #endif |
1686 | #if EV_USE_EPOLL |
3199 | #if EV_USE_EPOLL |
1687 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3200 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1688 | #endif |
3201 | #endif |
1689 | #if EV_USE_POLL |
3202 | #if EV_USE_POLL |
1690 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3203 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1691 | #endif |
3204 | #endif |
1692 | #if EV_USE_SELECT |
3205 | #if EV_USE_SELECT |
1693 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3206 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1694 | #endif |
3207 | #endif |
1695 | |
3208 | |
1696 | for (i = NUMPRI; i--; ) |
3209 | for (i = NUMPRI; i--; ) |
1697 | { |
3210 | { |
1698 | array_free (pending, [i]); |
3211 | array_free (pending, [i]); |
… | |
… | |
1711 | array_free (periodic, EMPTY); |
3224 | array_free (periodic, EMPTY); |
1712 | #endif |
3225 | #endif |
1713 | #if EV_FORK_ENABLE |
3226 | #if EV_FORK_ENABLE |
1714 | array_free (fork, EMPTY); |
3227 | array_free (fork, EMPTY); |
1715 | #endif |
3228 | #endif |
|
|
3229 | #if EV_CLEANUP_ENABLE |
|
|
3230 | array_free (cleanup, EMPTY); |
|
|
3231 | #endif |
1716 | array_free (prepare, EMPTY); |
3232 | array_free (prepare, EMPTY); |
1717 | array_free (check, EMPTY); |
3233 | array_free (check, EMPTY); |
1718 | #if EV_ASYNC_ENABLE |
3234 | #if EV_ASYNC_ENABLE |
1719 | array_free (async, EMPTY); |
3235 | array_free (async, EMPTY); |
1720 | #endif |
3236 | #endif |
1721 | |
3237 | |
1722 | backend = 0; |
3238 | backend = 0; |
|
|
3239 | |
|
|
3240 | #if EV_MULTIPLICITY |
|
|
3241 | if (ev_is_default_loop (EV_A)) |
|
|
3242 | #endif |
|
|
3243 | ev_default_loop_ptr = 0; |
|
|
3244 | #if EV_MULTIPLICITY |
|
|
3245 | else |
|
|
3246 | ev_free (EV_A); |
|
|
3247 | #endif |
1723 | } |
3248 | } |
1724 | |
3249 | |
1725 | #if EV_USE_INOTIFY |
3250 | #if EV_USE_INOTIFY |
1726 | inline_size void infy_fork (EV_P); |
3251 | inline_size void infy_fork (EV_P); |
1727 | #endif |
3252 | #endif |
1728 | |
3253 | |
1729 | inline_size void |
3254 | inline_size void |
1730 | loop_fork (EV_P) |
3255 | loop_fork (EV_P) |
1731 | { |
3256 | { |
1732 | #if EV_USE_PORT |
3257 | #if EV_USE_PORT |
1733 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3258 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1734 | #endif |
3259 | #endif |
1735 | #if EV_USE_KQUEUE |
3260 | #if EV_USE_KQUEUE |
1736 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3261 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3262 | #endif |
|
|
3263 | #if EV_USE_IOURING |
|
|
3264 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3265 | #endif |
|
|
3266 | #if EV_USE_LINUXAIO |
|
|
3267 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1737 | #endif |
3268 | #endif |
1738 | #if EV_USE_EPOLL |
3269 | #if EV_USE_EPOLL |
1739 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3270 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1740 | #endif |
3271 | #endif |
1741 | #if EV_USE_INOTIFY |
3272 | #if EV_USE_INOTIFY |
1742 | infy_fork (EV_A); |
3273 | infy_fork (EV_A); |
1743 | #endif |
3274 | #endif |
1744 | |
3275 | |
|
|
3276 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1745 | if (ev_is_active (&pipe_w)) |
3277 | if (ev_is_active (&pipe_w) && postfork != 2) |
1746 | { |
3278 | { |
1747 | /* this "locks" the handlers against writing to the pipe */ |
3279 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1748 | /* while we modify the fd vars */ |
|
|
1749 | sig_pending = 1; |
|
|
1750 | #if EV_ASYNC_ENABLE |
|
|
1751 | async_pending = 1; |
|
|
1752 | #endif |
|
|
1753 | |
3280 | |
1754 | ev_ref (EV_A); |
3281 | ev_ref (EV_A); |
1755 | ev_io_stop (EV_A_ &pipe_w); |
3282 | ev_io_stop (EV_A_ &pipe_w); |
1756 | |
3283 | |
1757 | #if EV_USE_EVENTFD |
|
|
1758 | if (evfd >= 0) |
|
|
1759 | close (evfd); |
|
|
1760 | #endif |
|
|
1761 | |
|
|
1762 | if (evpipe [0] >= 0) |
3284 | if (evpipe [0] >= 0) |
1763 | { |
|
|
1764 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3285 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1765 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1766 | } |
|
|
1767 | |
3286 | |
1768 | evpipe_init (EV_A); |
3287 | evpipe_init (EV_A); |
1769 | /* now iterate over everything, in case we missed something */ |
3288 | /* iterate over everything, in case we missed something before */ |
1770 | pipecb (EV_A_ &pipe_w, EV_READ); |
3289 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1771 | } |
3290 | } |
|
|
3291 | #endif |
1772 | |
3292 | |
1773 | postfork = 0; |
3293 | postfork = 0; |
1774 | } |
3294 | } |
1775 | |
3295 | |
1776 | #if EV_MULTIPLICITY |
3296 | #if EV_MULTIPLICITY |
1777 | |
3297 | |
|
|
3298 | ecb_cold |
1778 | struct ev_loop * |
3299 | struct ev_loop * |
1779 | ev_loop_new (unsigned int flags) |
3300 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1780 | { |
3301 | { |
1781 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3302 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1782 | |
3303 | |
1783 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3304 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1784 | loop_init (EV_A_ flags); |
3305 | loop_init (EV_A_ flags); |
1785 | |
3306 | |
1786 | if (ev_backend (EV_A)) |
3307 | if (ev_backend (EV_A)) |
1787 | return EV_A; |
3308 | return EV_A; |
1788 | |
3309 | |
|
|
3310 | ev_free (EV_A); |
1789 | return 0; |
3311 | return 0; |
1790 | } |
3312 | } |
1791 | |
3313 | |
1792 | void |
|
|
1793 | ev_loop_destroy (EV_P) |
|
|
1794 | { |
|
|
1795 | loop_destroy (EV_A); |
|
|
1796 | ev_free (loop); |
|
|
1797 | } |
|
|
1798 | |
|
|
1799 | void |
|
|
1800 | ev_loop_fork (EV_P) |
|
|
1801 | { |
|
|
1802 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1803 | } |
|
|
1804 | #endif /* multiplicity */ |
3314 | #endif /* multiplicity */ |
1805 | |
3315 | |
1806 | #if EV_VERIFY |
3316 | #if EV_VERIFY |
1807 | static void noinline |
3317 | ecb_noinline ecb_cold |
|
|
3318 | static void |
1808 | verify_watcher (EV_P_ W w) |
3319 | verify_watcher (EV_P_ W w) |
1809 | { |
3320 | { |
1810 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3321 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1811 | |
3322 | |
1812 | if (w->pending) |
3323 | if (w->pending) |
1813 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3324 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1814 | } |
3325 | } |
1815 | |
3326 | |
1816 | static void noinline |
3327 | ecb_noinline ecb_cold |
|
|
3328 | static void |
1817 | verify_heap (EV_P_ ANHE *heap, int N) |
3329 | verify_heap (EV_P_ ANHE *heap, int N) |
1818 | { |
3330 | { |
1819 | int i; |
3331 | int i; |
1820 | |
3332 | |
1821 | for (i = HEAP0; i < N + HEAP0; ++i) |
3333 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1826 | |
3338 | |
1827 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3339 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1828 | } |
3340 | } |
1829 | } |
3341 | } |
1830 | |
3342 | |
1831 | static void noinline |
3343 | ecb_noinline ecb_cold |
|
|
3344 | static void |
1832 | array_verify (EV_P_ W *ws, int cnt) |
3345 | array_verify (EV_P_ W *ws, int cnt) |
1833 | { |
3346 | { |
1834 | while (cnt--) |
3347 | while (cnt--) |
1835 | { |
3348 | { |
1836 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3349 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1837 | verify_watcher (EV_A_ ws [cnt]); |
3350 | verify_watcher (EV_A_ ws [cnt]); |
1838 | } |
3351 | } |
1839 | } |
3352 | } |
1840 | #endif |
3353 | #endif |
1841 | |
3354 | |
1842 | #if EV_MINIMAL < 2 |
3355 | #if EV_FEATURE_API |
1843 | void |
3356 | void ecb_cold |
1844 | ev_loop_verify (EV_P) |
3357 | ev_verify (EV_P) EV_NOEXCEPT |
1845 | { |
3358 | { |
1846 | #if EV_VERIFY |
3359 | #if EV_VERIFY |
1847 | int i; |
3360 | int i; |
1848 | WL w; |
3361 | WL w, w2; |
1849 | |
3362 | |
1850 | assert (activecnt >= -1); |
3363 | assert (activecnt >= -1); |
1851 | |
3364 | |
1852 | assert (fdchangemax >= fdchangecnt); |
3365 | assert (fdchangemax >= fdchangecnt); |
1853 | for (i = 0; i < fdchangecnt; ++i) |
3366 | for (i = 0; i < fdchangecnt; ++i) |
1854 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3367 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1855 | |
3368 | |
1856 | assert (anfdmax >= 0); |
3369 | assert (anfdmax >= 0); |
1857 | for (i = 0; i < anfdmax; ++i) |
3370 | for (i = 0; i < anfdmax; ++i) |
|
|
3371 | { |
|
|
3372 | int j = 0; |
|
|
3373 | |
1858 | for (w = anfds [i].head; w; w = w->next) |
3374 | for (w = w2 = anfds [i].head; w; w = w->next) |
1859 | { |
3375 | { |
1860 | verify_watcher (EV_A_ (W)w); |
3376 | verify_watcher (EV_A_ (W)w); |
|
|
3377 | |
|
|
3378 | if (j++ & 1) |
|
|
3379 | { |
|
|
3380 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3381 | w2 = w2->next; |
|
|
3382 | } |
|
|
3383 | |
1861 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3384 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1862 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3385 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1863 | } |
3386 | } |
|
|
3387 | } |
1864 | |
3388 | |
1865 | assert (timermax >= timercnt); |
3389 | assert (timermax >= timercnt); |
1866 | verify_heap (EV_A_ timers, timercnt); |
3390 | verify_heap (EV_A_ timers, timercnt); |
1867 | |
3391 | |
1868 | #if EV_PERIODIC_ENABLE |
3392 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1883 | #if EV_FORK_ENABLE |
3407 | #if EV_FORK_ENABLE |
1884 | assert (forkmax >= forkcnt); |
3408 | assert (forkmax >= forkcnt); |
1885 | array_verify (EV_A_ (W *)forks, forkcnt); |
3409 | array_verify (EV_A_ (W *)forks, forkcnt); |
1886 | #endif |
3410 | #endif |
1887 | |
3411 | |
|
|
3412 | #if EV_CLEANUP_ENABLE |
|
|
3413 | assert (cleanupmax >= cleanupcnt); |
|
|
3414 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3415 | #endif |
|
|
3416 | |
1888 | #if EV_ASYNC_ENABLE |
3417 | #if EV_ASYNC_ENABLE |
1889 | assert (asyncmax >= asynccnt); |
3418 | assert (asyncmax >= asynccnt); |
1890 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3419 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1891 | #endif |
3420 | #endif |
1892 | |
3421 | |
|
|
3422 | #if EV_PREPARE_ENABLE |
1893 | assert (preparemax >= preparecnt); |
3423 | assert (preparemax >= preparecnt); |
1894 | array_verify (EV_A_ (W *)prepares, preparecnt); |
3424 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
3425 | #endif |
1895 | |
3426 | |
|
|
3427 | #if EV_CHECK_ENABLE |
1896 | assert (checkmax >= checkcnt); |
3428 | assert (checkmax >= checkcnt); |
1897 | array_verify (EV_A_ (W *)checks, checkcnt); |
3429 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
3430 | #endif |
1898 | |
3431 | |
1899 | # if 0 |
3432 | # if 0 |
|
|
3433 | #if EV_CHILD_ENABLE |
1900 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
3434 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1901 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
3435 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3436 | #endif |
1902 | # endif |
3437 | # endif |
1903 | #endif |
3438 | #endif |
1904 | } |
3439 | } |
1905 | #endif |
3440 | #endif |
1906 | |
3441 | |
1907 | #if EV_MULTIPLICITY |
3442 | #if EV_MULTIPLICITY |
|
|
3443 | ecb_cold |
1908 | struct ev_loop * |
3444 | struct ev_loop * |
1909 | ev_default_loop_init (unsigned int flags) |
|
|
1910 | #else |
3445 | #else |
1911 | int |
3446 | int |
|
|
3447 | #endif |
1912 | ev_default_loop (unsigned int flags) |
3448 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1913 | #endif |
|
|
1914 | { |
3449 | { |
1915 | if (!ev_default_loop_ptr) |
3450 | if (!ev_default_loop_ptr) |
1916 | { |
3451 | { |
1917 | #if EV_MULTIPLICITY |
3452 | #if EV_MULTIPLICITY |
1918 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3453 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1922 | |
3457 | |
1923 | loop_init (EV_A_ flags); |
3458 | loop_init (EV_A_ flags); |
1924 | |
3459 | |
1925 | if (ev_backend (EV_A)) |
3460 | if (ev_backend (EV_A)) |
1926 | { |
3461 | { |
1927 | #ifndef _WIN32 |
3462 | #if EV_CHILD_ENABLE |
1928 | ev_signal_init (&childev, childcb, SIGCHLD); |
3463 | ev_signal_init (&childev, childcb, SIGCHLD); |
1929 | ev_set_priority (&childev, EV_MAXPRI); |
3464 | ev_set_priority (&childev, EV_MAXPRI); |
1930 | ev_signal_start (EV_A_ &childev); |
3465 | ev_signal_start (EV_A_ &childev); |
1931 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3466 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1932 | #endif |
3467 | #endif |
… | |
… | |
1937 | |
3472 | |
1938 | return ev_default_loop_ptr; |
3473 | return ev_default_loop_ptr; |
1939 | } |
3474 | } |
1940 | |
3475 | |
1941 | void |
3476 | void |
1942 | ev_default_destroy (void) |
3477 | ev_loop_fork (EV_P) EV_NOEXCEPT |
1943 | { |
3478 | { |
1944 | #if EV_MULTIPLICITY |
3479 | postfork = 1; |
1945 | EV_P = ev_default_loop_ptr; |
|
|
1946 | #endif |
|
|
1947 | |
|
|
1948 | ev_default_loop_ptr = 0; |
|
|
1949 | |
|
|
1950 | #ifndef _WIN32 |
|
|
1951 | ev_ref (EV_A); /* child watcher */ |
|
|
1952 | ev_signal_stop (EV_A_ &childev); |
|
|
1953 | #endif |
|
|
1954 | |
|
|
1955 | loop_destroy (EV_A); |
|
|
1956 | } |
|
|
1957 | |
|
|
1958 | void |
|
|
1959 | ev_default_fork (void) |
|
|
1960 | { |
|
|
1961 | #if EV_MULTIPLICITY |
|
|
1962 | EV_P = ev_default_loop_ptr; |
|
|
1963 | #endif |
|
|
1964 | |
|
|
1965 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1966 | } |
3480 | } |
1967 | |
3481 | |
1968 | /*****************************************************************************/ |
3482 | /*****************************************************************************/ |
1969 | |
3483 | |
1970 | void |
3484 | void |
… | |
… | |
1972 | { |
3486 | { |
1973 | EV_CB_INVOKE ((W)w, revents); |
3487 | EV_CB_INVOKE ((W)w, revents); |
1974 | } |
3488 | } |
1975 | |
3489 | |
1976 | unsigned int |
3490 | unsigned int |
1977 | ev_pending_count (EV_P) |
3491 | ev_pending_count (EV_P) EV_NOEXCEPT |
1978 | { |
3492 | { |
1979 | int pri; |
3493 | int pri; |
1980 | unsigned int count = 0; |
3494 | unsigned int count = 0; |
1981 | |
3495 | |
1982 | for (pri = NUMPRI; pri--; ) |
3496 | for (pri = NUMPRI; pri--; ) |
1983 | count += pendingcnt [pri]; |
3497 | count += pendingcnt [pri]; |
1984 | |
3498 | |
1985 | return count; |
3499 | return count; |
1986 | } |
3500 | } |
1987 | |
3501 | |
1988 | void noinline |
3502 | ecb_noinline |
|
|
3503 | void |
1989 | ev_invoke_pending (EV_P) |
3504 | ev_invoke_pending (EV_P) |
1990 | { |
3505 | { |
1991 | int pri; |
3506 | pendingpri = NUMPRI; |
1992 | |
3507 | |
1993 | for (pri = NUMPRI; pri--; ) |
3508 | do |
|
|
3509 | { |
|
|
3510 | --pendingpri; |
|
|
3511 | |
|
|
3512 | /* pendingpri possibly gets modified in the inner loop */ |
1994 | while (pendingcnt [pri]) |
3513 | while (pendingcnt [pendingpri]) |
1995 | { |
3514 | { |
1996 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3515 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1997 | |
3516 | |
1998 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1999 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2000 | |
|
|
2001 | p->w->pending = 0; |
3517 | p->w->pending = 0; |
2002 | EV_CB_INVOKE (p->w, p->events); |
3518 | EV_CB_INVOKE (p->w, p->events); |
2003 | EV_FREQUENT_CHECK; |
3519 | EV_FREQUENT_CHECK; |
2004 | } |
3520 | } |
|
|
3521 | } |
|
|
3522 | while (pendingpri); |
2005 | } |
3523 | } |
2006 | |
3524 | |
2007 | #if EV_IDLE_ENABLE |
3525 | #if EV_IDLE_ENABLE |
2008 | /* make idle watchers pending. this handles the "call-idle */ |
3526 | /* make idle watchers pending. this handles the "call-idle */ |
2009 | /* only when higher priorities are idle" logic */ |
3527 | /* only when higher priorities are idle" logic */ |
2010 | inline_size void |
3528 | inline_size void |
2011 | idle_reify (EV_P) |
3529 | idle_reify (EV_P) |
2012 | { |
3530 | { |
2013 | if (expect_false (idleall)) |
3531 | if (ecb_expect_false (idleall)) |
2014 | { |
3532 | { |
2015 | int pri; |
3533 | int pri; |
2016 | |
3534 | |
2017 | for (pri = NUMPRI; pri--; ) |
3535 | for (pri = NUMPRI; pri--; ) |
2018 | { |
3536 | { |
… | |
… | |
2048 | { |
3566 | { |
2049 | ev_at (w) += w->repeat; |
3567 | ev_at (w) += w->repeat; |
2050 | if (ev_at (w) < mn_now) |
3568 | if (ev_at (w) < mn_now) |
2051 | ev_at (w) = mn_now; |
3569 | ev_at (w) = mn_now; |
2052 | |
3570 | |
2053 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3571 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
2054 | |
3572 | |
2055 | ANHE_at_cache (timers [HEAP0]); |
3573 | ANHE_at_cache (timers [HEAP0]); |
2056 | downheap (timers, timercnt, HEAP0); |
3574 | downheap (timers, timercnt, HEAP0); |
2057 | } |
3575 | } |
2058 | else |
3576 | else |
… | |
… | |
2061 | EV_FREQUENT_CHECK; |
3579 | EV_FREQUENT_CHECK; |
2062 | feed_reverse (EV_A_ (W)w); |
3580 | feed_reverse (EV_A_ (W)w); |
2063 | } |
3581 | } |
2064 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3582 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2065 | |
3583 | |
2066 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3584 | feed_reverse_done (EV_A_ EV_TIMER); |
2067 | } |
3585 | } |
2068 | } |
3586 | } |
2069 | |
3587 | |
2070 | #if EV_PERIODIC_ENABLE |
3588 | #if EV_PERIODIC_ENABLE |
|
|
3589 | |
|
|
3590 | ecb_noinline |
|
|
3591 | static void |
|
|
3592 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3593 | { |
|
|
3594 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3595 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3596 | |
|
|
3597 | /* the above almost always errs on the low side */ |
|
|
3598 | while (at <= ev_rt_now) |
|
|
3599 | { |
|
|
3600 | ev_tstamp nat = at + w->interval; |
|
|
3601 | |
|
|
3602 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3603 | if (ecb_expect_false (nat == at)) |
|
|
3604 | { |
|
|
3605 | at = ev_rt_now; |
|
|
3606 | break; |
|
|
3607 | } |
|
|
3608 | |
|
|
3609 | at = nat; |
|
|
3610 | } |
|
|
3611 | |
|
|
3612 | ev_at (w) = at; |
|
|
3613 | } |
|
|
3614 | |
2071 | /* make periodics pending */ |
3615 | /* make periodics pending */ |
2072 | inline_size void |
3616 | inline_size void |
2073 | periodics_reify (EV_P) |
3617 | periodics_reify (EV_P) |
2074 | { |
3618 | { |
2075 | EV_FREQUENT_CHECK; |
3619 | EV_FREQUENT_CHECK; |
2076 | |
3620 | |
2077 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3621 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2078 | { |
3622 | { |
2079 | int feed_count = 0; |
|
|
2080 | |
|
|
2081 | do |
3623 | do |
2082 | { |
3624 | { |
2083 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3625 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2084 | |
3626 | |
2085 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3627 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2094 | ANHE_at_cache (periodics [HEAP0]); |
3636 | ANHE_at_cache (periodics [HEAP0]); |
2095 | downheap (periodics, periodiccnt, HEAP0); |
3637 | downheap (periodics, periodiccnt, HEAP0); |
2096 | } |
3638 | } |
2097 | else if (w->interval) |
3639 | else if (w->interval) |
2098 | { |
3640 | { |
2099 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3641 | periodic_recalc (EV_A_ w); |
2100 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2101 | /* this might happen because of floating point inexactness */ |
|
|
2102 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2103 | { |
|
|
2104 | ev_at (w) += w->interval; |
|
|
2105 | |
|
|
2106 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2107 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2108 | /* has effectively asked to get triggered more often than possible */ |
|
|
2109 | if (ev_at (w) < ev_rt_now) |
|
|
2110 | ev_at (w) = ev_rt_now; |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | ANHE_at_cache (periodics [HEAP0]); |
3642 | ANHE_at_cache (periodics [HEAP0]); |
2114 | downheap (periodics, periodiccnt, HEAP0); |
3643 | downheap (periodics, periodiccnt, HEAP0); |
2115 | } |
3644 | } |
2116 | else |
3645 | else |
2117 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3646 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2124 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3653 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2125 | } |
3654 | } |
2126 | } |
3655 | } |
2127 | |
3656 | |
2128 | /* simply recalculate all periodics */ |
3657 | /* simply recalculate all periodics */ |
2129 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3658 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2130 | static void noinline |
3659 | ecb_noinline ecb_cold |
|
|
3660 | static void |
2131 | periodics_reschedule (EV_P) |
3661 | periodics_reschedule (EV_P) |
2132 | { |
3662 | { |
2133 | int i; |
3663 | int i; |
2134 | |
3664 | |
2135 | /* adjust periodics after time jump */ |
3665 | /* adjust periodics after time jump */ |
… | |
… | |
2138 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3668 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2139 | |
3669 | |
2140 | if (w->reschedule_cb) |
3670 | if (w->reschedule_cb) |
2141 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3671 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2142 | else if (w->interval) |
3672 | else if (w->interval) |
2143 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3673 | periodic_recalc (EV_A_ w); |
2144 | |
3674 | |
2145 | ANHE_at_cache (periodics [i]); |
3675 | ANHE_at_cache (periodics [i]); |
2146 | } |
3676 | } |
2147 | |
3677 | |
2148 | reheap (periodics, periodiccnt); |
3678 | reheap (periodics, periodiccnt); |
2149 | } |
3679 | } |
2150 | #endif |
3680 | #endif |
2151 | |
3681 | |
2152 | /* adjust all timers by a given offset */ |
3682 | /* adjust all timers by a given offset */ |
2153 | static void noinline |
3683 | ecb_noinline ecb_cold |
|
|
3684 | static void |
2154 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3685 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2155 | { |
3686 | { |
2156 | int i; |
3687 | int i; |
2157 | |
3688 | |
2158 | for (i = 0; i < timercnt; ++i) |
3689 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2162 | ANHE_at_cache (*he); |
3693 | ANHE_at_cache (*he); |
2163 | } |
3694 | } |
2164 | } |
3695 | } |
2165 | |
3696 | |
2166 | /* fetch new monotonic and realtime times from the kernel */ |
3697 | /* fetch new monotonic and realtime times from the kernel */ |
2167 | /* also detetc if there was a timejump, and act accordingly */ |
3698 | /* also detect if there was a timejump, and act accordingly */ |
2168 | inline_speed void |
3699 | inline_speed void |
2169 | time_update (EV_P_ ev_tstamp max_block) |
3700 | time_update (EV_P_ ev_tstamp max_block) |
2170 | { |
3701 | { |
2171 | #if EV_USE_MONOTONIC |
3702 | #if EV_USE_MONOTONIC |
2172 | if (expect_true (have_monotonic)) |
3703 | if (ecb_expect_true (have_monotonic)) |
2173 | { |
3704 | { |
2174 | int i; |
3705 | int i; |
2175 | ev_tstamp odiff = rtmn_diff; |
3706 | ev_tstamp odiff = rtmn_diff; |
2176 | |
3707 | |
2177 | mn_now = get_clock (); |
3708 | mn_now = get_clock (); |
2178 | |
3709 | |
2179 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3710 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2180 | /* interpolate in the meantime */ |
3711 | /* interpolate in the meantime */ |
2181 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3712 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
2182 | { |
3713 | { |
2183 | ev_rt_now = rtmn_diff + mn_now; |
3714 | ev_rt_now = rtmn_diff + mn_now; |
2184 | return; |
3715 | return; |
2185 | } |
3716 | } |
2186 | |
3717 | |
… | |
… | |
2195 | * doesn't hurt either as we only do this on time-jumps or |
3726 | * doesn't hurt either as we only do this on time-jumps or |
2196 | * in the unlikely event of having been preempted here. |
3727 | * in the unlikely event of having been preempted here. |
2197 | */ |
3728 | */ |
2198 | for (i = 4; --i; ) |
3729 | for (i = 4; --i; ) |
2199 | { |
3730 | { |
|
|
3731 | ev_tstamp diff; |
2200 | rtmn_diff = ev_rt_now - mn_now; |
3732 | rtmn_diff = ev_rt_now - mn_now; |
2201 | |
3733 | |
2202 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3734 | diff = odiff - rtmn_diff; |
|
|
3735 | |
|
|
3736 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
2203 | return; /* all is well */ |
3737 | return; /* all is well */ |
2204 | |
3738 | |
2205 | ev_rt_now = ev_time (); |
3739 | ev_rt_now = ev_time (); |
2206 | mn_now = get_clock (); |
3740 | mn_now = get_clock (); |
2207 | now_floor = mn_now; |
3741 | now_floor = mn_now; |
… | |
… | |
2216 | else |
3750 | else |
2217 | #endif |
3751 | #endif |
2218 | { |
3752 | { |
2219 | ev_rt_now = ev_time (); |
3753 | ev_rt_now = ev_time (); |
2220 | |
3754 | |
2221 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3755 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
2222 | { |
3756 | { |
2223 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3757 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2224 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3758 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2225 | #if EV_PERIODIC_ENABLE |
3759 | #if EV_PERIODIC_ENABLE |
2226 | periodics_reschedule (EV_A); |
3760 | periodics_reschedule (EV_A); |
… | |
… | |
2229 | |
3763 | |
2230 | mn_now = ev_rt_now; |
3764 | mn_now = ev_rt_now; |
2231 | } |
3765 | } |
2232 | } |
3766 | } |
2233 | |
3767 | |
2234 | void |
3768 | int |
2235 | ev_loop (EV_P_ int flags) |
3769 | ev_run (EV_P_ int flags) |
2236 | { |
3770 | { |
2237 | #if EV_MINIMAL < 2 |
3771 | #if EV_FEATURE_API |
2238 | ++loop_depth; |
3772 | ++loop_depth; |
2239 | #endif |
3773 | #endif |
2240 | |
3774 | |
2241 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3775 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2242 | |
3776 | |
2243 | loop_done = EVUNLOOP_CANCEL; |
3777 | loop_done = EVBREAK_CANCEL; |
2244 | |
3778 | |
2245 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3779 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2246 | |
3780 | |
2247 | do |
3781 | do |
2248 | { |
3782 | { |
2249 | #if EV_VERIFY >= 2 |
3783 | #if EV_VERIFY >= 2 |
2250 | ev_loop_verify (EV_A); |
3784 | ev_verify (EV_A); |
2251 | #endif |
3785 | #endif |
2252 | |
3786 | |
2253 | #ifndef _WIN32 |
3787 | #ifndef _WIN32 |
2254 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3788 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2255 | if (expect_false (getpid () != curpid)) |
3789 | if (ecb_expect_false (getpid () != curpid)) |
2256 | { |
3790 | { |
2257 | curpid = getpid (); |
3791 | curpid = getpid (); |
2258 | postfork = 1; |
3792 | postfork = 1; |
2259 | } |
3793 | } |
2260 | #endif |
3794 | #endif |
2261 | |
3795 | |
2262 | #if EV_FORK_ENABLE |
3796 | #if EV_FORK_ENABLE |
2263 | /* we might have forked, so queue fork handlers */ |
3797 | /* we might have forked, so queue fork handlers */ |
2264 | if (expect_false (postfork)) |
3798 | if (ecb_expect_false (postfork)) |
2265 | if (forkcnt) |
3799 | if (forkcnt) |
2266 | { |
3800 | { |
2267 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3801 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2268 | EV_INVOKE_PENDING; |
3802 | EV_INVOKE_PENDING; |
2269 | } |
3803 | } |
2270 | #endif |
3804 | #endif |
2271 | |
3805 | |
|
|
3806 | #if EV_PREPARE_ENABLE |
2272 | /* queue prepare watchers (and execute them) */ |
3807 | /* queue prepare watchers (and execute them) */ |
2273 | if (expect_false (preparecnt)) |
3808 | if (ecb_expect_false (preparecnt)) |
2274 | { |
3809 | { |
2275 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3810 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2276 | EV_INVOKE_PENDING; |
3811 | EV_INVOKE_PENDING; |
2277 | } |
3812 | } |
|
|
3813 | #endif |
2278 | |
3814 | |
2279 | if (expect_false (loop_done)) |
3815 | if (ecb_expect_false (loop_done)) |
2280 | break; |
3816 | break; |
2281 | |
3817 | |
2282 | /* we might have forked, so reify kernel state if necessary */ |
3818 | /* we might have forked, so reify kernel state if necessary */ |
2283 | if (expect_false (postfork)) |
3819 | if (ecb_expect_false (postfork)) |
2284 | loop_fork (EV_A); |
3820 | loop_fork (EV_A); |
2285 | |
3821 | |
2286 | /* update fd-related kernel structures */ |
3822 | /* update fd-related kernel structures */ |
2287 | fd_reify (EV_A); |
3823 | fd_reify (EV_A); |
2288 | |
3824 | |
2289 | /* calculate blocking time */ |
3825 | /* calculate blocking time */ |
2290 | { |
3826 | { |
2291 | ev_tstamp waittime = 0.; |
3827 | ev_tstamp waittime = 0.; |
2292 | ev_tstamp sleeptime = 0.; |
3828 | ev_tstamp sleeptime = 0.; |
2293 | |
3829 | |
|
|
3830 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3831 | ev_tstamp prev_mn_now = mn_now; |
|
|
3832 | |
|
|
3833 | /* update time to cancel out callback processing overhead */ |
|
|
3834 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
|
|
3835 | |
|
|
3836 | /* from now on, we want a pipe-wake-up */ |
|
|
3837 | pipe_write_wanted = 1; |
|
|
3838 | |
|
|
3839 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3840 | |
2294 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3841 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2295 | { |
3842 | { |
2296 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2297 | ev_tstamp prev_mn_now = mn_now; |
|
|
2298 | |
|
|
2299 | /* update time to cancel out callback processing overhead */ |
|
|
2300 | time_update (EV_A_ 1e100); |
|
|
2301 | |
|
|
2302 | waittime = MAX_BLOCKTIME; |
3843 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
2303 | |
3844 | |
2304 | if (timercnt) |
3845 | if (timercnt) |
2305 | { |
3846 | { |
2306 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3847 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2307 | if (waittime > to) waittime = to; |
3848 | if (waittime > to) waittime = to; |
2308 | } |
3849 | } |
2309 | |
3850 | |
2310 | #if EV_PERIODIC_ENABLE |
3851 | #if EV_PERIODIC_ENABLE |
2311 | if (periodiccnt) |
3852 | if (periodiccnt) |
2312 | { |
3853 | { |
2313 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3854 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2314 | if (waittime > to) waittime = to; |
3855 | if (waittime > to) waittime = to; |
2315 | } |
3856 | } |
2316 | #endif |
3857 | #endif |
2317 | |
3858 | |
2318 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3859 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2319 | if (expect_false (waittime < timeout_blocktime)) |
3860 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2320 | waittime = timeout_blocktime; |
3861 | waittime = timeout_blocktime; |
2321 | |
3862 | |
|
|
3863 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3864 | /* to pass a minimum nonzero value to the backend */ |
|
|
3865 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3866 | waittime = backend_mintime; |
|
|
3867 | |
2322 | /* extra check because io_blocktime is commonly 0 */ |
3868 | /* extra check because io_blocktime is commonly 0 */ |
2323 | if (expect_false (io_blocktime)) |
3869 | if (ecb_expect_false (io_blocktime)) |
2324 | { |
3870 | { |
2325 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3871 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2326 | |
3872 | |
2327 | if (sleeptime > waittime - backend_fudge) |
3873 | if (sleeptime > waittime - backend_mintime) |
2328 | sleeptime = waittime - backend_fudge; |
3874 | sleeptime = waittime - backend_mintime; |
2329 | |
3875 | |
2330 | if (expect_true (sleeptime > 0.)) |
3876 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
2331 | { |
3877 | { |
2332 | ev_sleep (sleeptime); |
3878 | ev_sleep (sleeptime); |
2333 | waittime -= sleeptime; |
3879 | waittime -= sleeptime; |
2334 | } |
3880 | } |
2335 | } |
3881 | } |
2336 | } |
3882 | } |
2337 | |
3883 | |
2338 | #if EV_MINIMAL < 2 |
3884 | #if EV_FEATURE_API |
2339 | ++loop_count; |
3885 | ++loop_count; |
2340 | #endif |
3886 | #endif |
2341 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3887 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2342 | backend_poll (EV_A_ waittime); |
3888 | backend_poll (EV_A_ waittime); |
2343 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3889 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3890 | |
|
|
3891 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3892 | |
|
|
3893 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3894 | if (pipe_write_skipped) |
|
|
3895 | { |
|
|
3896 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3897 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3898 | } |
2344 | |
3899 | |
2345 | /* update ev_rt_now, do magic */ |
3900 | /* update ev_rt_now, do magic */ |
2346 | time_update (EV_A_ waittime + sleeptime); |
3901 | time_update (EV_A_ waittime + sleeptime); |
2347 | } |
3902 | } |
2348 | |
3903 | |
… | |
… | |
2355 | #if EV_IDLE_ENABLE |
3910 | #if EV_IDLE_ENABLE |
2356 | /* queue idle watchers unless other events are pending */ |
3911 | /* queue idle watchers unless other events are pending */ |
2357 | idle_reify (EV_A); |
3912 | idle_reify (EV_A); |
2358 | #endif |
3913 | #endif |
2359 | |
3914 | |
|
|
3915 | #if EV_CHECK_ENABLE |
2360 | /* queue check watchers, to be executed first */ |
3916 | /* queue check watchers, to be executed first */ |
2361 | if (expect_false (checkcnt)) |
3917 | if (ecb_expect_false (checkcnt)) |
2362 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3918 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3919 | #endif |
2363 | |
3920 | |
2364 | EV_INVOKE_PENDING; |
3921 | EV_INVOKE_PENDING; |
2365 | } |
3922 | } |
2366 | while (expect_true ( |
3923 | while (ecb_expect_true ( |
2367 | activecnt |
3924 | activecnt |
2368 | && !loop_done |
3925 | && !loop_done |
2369 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3926 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2370 | )); |
3927 | )); |
2371 | |
3928 | |
2372 | if (loop_done == EVUNLOOP_ONE) |
3929 | if (loop_done == EVBREAK_ONE) |
2373 | loop_done = EVUNLOOP_CANCEL; |
3930 | loop_done = EVBREAK_CANCEL; |
2374 | |
3931 | |
2375 | #if EV_MINIMAL < 2 |
3932 | #if EV_FEATURE_API |
2376 | --loop_depth; |
3933 | --loop_depth; |
2377 | #endif |
3934 | #endif |
2378 | } |
|
|
2379 | |
3935 | |
|
|
3936 | return activecnt; |
|
|
3937 | } |
|
|
3938 | |
2380 | void |
3939 | void |
2381 | ev_unloop (EV_P_ int how) |
3940 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2382 | { |
3941 | { |
2383 | loop_done = how; |
3942 | loop_done = how; |
2384 | } |
3943 | } |
2385 | |
3944 | |
2386 | void |
3945 | void |
2387 | ev_ref (EV_P) |
3946 | ev_ref (EV_P) EV_NOEXCEPT |
2388 | { |
3947 | { |
2389 | ++activecnt; |
3948 | ++activecnt; |
2390 | } |
3949 | } |
2391 | |
3950 | |
2392 | void |
3951 | void |
2393 | ev_unref (EV_P) |
3952 | ev_unref (EV_P) EV_NOEXCEPT |
2394 | { |
3953 | { |
2395 | --activecnt; |
3954 | --activecnt; |
2396 | } |
3955 | } |
2397 | |
3956 | |
2398 | void |
3957 | void |
2399 | ev_now_update (EV_P) |
3958 | ev_now_update (EV_P) EV_NOEXCEPT |
2400 | { |
3959 | { |
2401 | time_update (EV_A_ 1e100); |
3960 | time_update (EV_A_ EV_TSTAMP_HUGE); |
2402 | } |
3961 | } |
2403 | |
3962 | |
2404 | void |
3963 | void |
2405 | ev_suspend (EV_P) |
3964 | ev_suspend (EV_P) EV_NOEXCEPT |
2406 | { |
3965 | { |
2407 | ev_now_update (EV_A); |
3966 | ev_now_update (EV_A); |
2408 | } |
3967 | } |
2409 | |
3968 | |
2410 | void |
3969 | void |
2411 | ev_resume (EV_P) |
3970 | ev_resume (EV_P) EV_NOEXCEPT |
2412 | { |
3971 | { |
2413 | ev_tstamp mn_prev = mn_now; |
3972 | ev_tstamp mn_prev = mn_now; |
2414 | |
3973 | |
2415 | ev_now_update (EV_A); |
3974 | ev_now_update (EV_A); |
2416 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3975 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2433 | inline_size void |
3992 | inline_size void |
2434 | wlist_del (WL *head, WL elem) |
3993 | wlist_del (WL *head, WL elem) |
2435 | { |
3994 | { |
2436 | while (*head) |
3995 | while (*head) |
2437 | { |
3996 | { |
2438 | if (expect_true (*head == elem)) |
3997 | if (ecb_expect_true (*head == elem)) |
2439 | { |
3998 | { |
2440 | *head = elem->next; |
3999 | *head = elem->next; |
2441 | break; |
4000 | break; |
2442 | } |
4001 | } |
2443 | |
4002 | |
… | |
… | |
2455 | w->pending = 0; |
4014 | w->pending = 0; |
2456 | } |
4015 | } |
2457 | } |
4016 | } |
2458 | |
4017 | |
2459 | int |
4018 | int |
2460 | ev_clear_pending (EV_P_ void *w) |
4019 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2461 | { |
4020 | { |
2462 | W w_ = (W)w; |
4021 | W w_ = (W)w; |
2463 | int pending = w_->pending; |
4022 | int pending = w_->pending; |
2464 | |
4023 | |
2465 | if (expect_true (pending)) |
4024 | if (ecb_expect_true (pending)) |
2466 | { |
4025 | { |
2467 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4026 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2468 | p->w = (W)&pending_w; |
4027 | p->w = (W)&pending_w; |
2469 | w_->pending = 0; |
4028 | w_->pending = 0; |
2470 | return p->events; |
4029 | return p->events; |
… | |
… | |
2497 | w->active = 0; |
4056 | w->active = 0; |
2498 | } |
4057 | } |
2499 | |
4058 | |
2500 | /*****************************************************************************/ |
4059 | /*****************************************************************************/ |
2501 | |
4060 | |
2502 | void noinline |
4061 | ecb_noinline |
|
|
4062 | void |
2503 | ev_io_start (EV_P_ ev_io *w) |
4063 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2504 | { |
4064 | { |
2505 | int fd = w->fd; |
4065 | int fd = w->fd; |
2506 | |
4066 | |
2507 | if (expect_false (ev_is_active (w))) |
4067 | if (ecb_expect_false (ev_is_active (w))) |
2508 | return; |
4068 | return; |
2509 | |
4069 | |
2510 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4070 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2511 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4071 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2512 | |
4072 | |
|
|
4073 | #if EV_VERIFY >= 2 |
|
|
4074 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4075 | #endif |
2513 | EV_FREQUENT_CHECK; |
4076 | EV_FREQUENT_CHECK; |
2514 | |
4077 | |
2515 | ev_start (EV_A_ (W)w, 1); |
4078 | ev_start (EV_A_ (W)w, 1); |
2516 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4079 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2517 | wlist_add (&anfds[fd].head, (WL)w); |
4080 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4081 | |
|
|
4082 | /* common bug, apparently */ |
|
|
4083 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2518 | |
4084 | |
2519 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4085 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2520 | w->events &= ~EV__IOFDSET; |
4086 | w->events &= ~EV__IOFDSET; |
2521 | |
4087 | |
2522 | EV_FREQUENT_CHECK; |
4088 | EV_FREQUENT_CHECK; |
2523 | } |
4089 | } |
2524 | |
4090 | |
2525 | void noinline |
4091 | ecb_noinline |
|
|
4092 | void |
2526 | ev_io_stop (EV_P_ ev_io *w) |
4093 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2527 | { |
4094 | { |
2528 | clear_pending (EV_A_ (W)w); |
4095 | clear_pending (EV_A_ (W)w); |
2529 | if (expect_false (!ev_is_active (w))) |
4096 | if (ecb_expect_false (!ev_is_active (w))) |
2530 | return; |
4097 | return; |
2531 | |
4098 | |
2532 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4099 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2533 | |
4100 | |
|
|
4101 | #if EV_VERIFY >= 2 |
|
|
4102 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4103 | #endif |
2534 | EV_FREQUENT_CHECK; |
4104 | EV_FREQUENT_CHECK; |
2535 | |
4105 | |
2536 | wlist_del (&anfds[w->fd].head, (WL)w); |
4106 | wlist_del (&anfds[w->fd].head, (WL)w); |
2537 | ev_stop (EV_A_ (W)w); |
4107 | ev_stop (EV_A_ (W)w); |
2538 | |
4108 | |
2539 | fd_change (EV_A_ w->fd, 1); |
4109 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2540 | |
4110 | |
2541 | EV_FREQUENT_CHECK; |
4111 | EV_FREQUENT_CHECK; |
2542 | } |
4112 | } |
2543 | |
4113 | |
2544 | void noinline |
4114 | ecb_noinline |
|
|
4115 | void |
2545 | ev_timer_start (EV_P_ ev_timer *w) |
4116 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2546 | { |
4117 | { |
2547 | if (expect_false (ev_is_active (w))) |
4118 | if (ecb_expect_false (ev_is_active (w))) |
2548 | return; |
4119 | return; |
2549 | |
4120 | |
2550 | ev_at (w) += mn_now; |
4121 | ev_at (w) += mn_now; |
2551 | |
4122 | |
2552 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4123 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2553 | |
4124 | |
2554 | EV_FREQUENT_CHECK; |
4125 | EV_FREQUENT_CHECK; |
2555 | |
4126 | |
2556 | ++timercnt; |
4127 | ++timercnt; |
2557 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4128 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2558 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4129 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2559 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4130 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2560 | ANHE_at_cache (timers [ev_active (w)]); |
4131 | ANHE_at_cache (timers [ev_active (w)]); |
2561 | upheap (timers, ev_active (w)); |
4132 | upheap (timers, ev_active (w)); |
2562 | |
4133 | |
2563 | EV_FREQUENT_CHECK; |
4134 | EV_FREQUENT_CHECK; |
2564 | |
4135 | |
2565 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4136 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2566 | } |
4137 | } |
2567 | |
4138 | |
2568 | void noinline |
4139 | ecb_noinline |
|
|
4140 | void |
2569 | ev_timer_stop (EV_P_ ev_timer *w) |
4141 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2570 | { |
4142 | { |
2571 | clear_pending (EV_A_ (W)w); |
4143 | clear_pending (EV_A_ (W)w); |
2572 | if (expect_false (!ev_is_active (w))) |
4144 | if (ecb_expect_false (!ev_is_active (w))) |
2573 | return; |
4145 | return; |
2574 | |
4146 | |
2575 | EV_FREQUENT_CHECK; |
4147 | EV_FREQUENT_CHECK; |
2576 | |
4148 | |
2577 | { |
4149 | { |
… | |
… | |
2579 | |
4151 | |
2580 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4152 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2581 | |
4153 | |
2582 | --timercnt; |
4154 | --timercnt; |
2583 | |
4155 | |
2584 | if (expect_true (active < timercnt + HEAP0)) |
4156 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2585 | { |
4157 | { |
2586 | timers [active] = timers [timercnt + HEAP0]; |
4158 | timers [active] = timers [timercnt + HEAP0]; |
2587 | adjustheap (timers, timercnt, active); |
4159 | adjustheap (timers, timercnt, active); |
2588 | } |
4160 | } |
2589 | } |
4161 | } |
2590 | |
4162 | |
2591 | EV_FREQUENT_CHECK; |
|
|
2592 | |
|
|
2593 | ev_at (w) -= mn_now; |
4163 | ev_at (w) -= mn_now; |
2594 | |
4164 | |
2595 | ev_stop (EV_A_ (W)w); |
4165 | ev_stop (EV_A_ (W)w); |
2596 | } |
|
|
2597 | |
4166 | |
2598 | void noinline |
4167 | EV_FREQUENT_CHECK; |
|
|
4168 | } |
|
|
4169 | |
|
|
4170 | ecb_noinline |
|
|
4171 | void |
2599 | ev_timer_again (EV_P_ ev_timer *w) |
4172 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2600 | { |
4173 | { |
2601 | EV_FREQUENT_CHECK; |
4174 | EV_FREQUENT_CHECK; |
|
|
4175 | |
|
|
4176 | clear_pending (EV_A_ (W)w); |
2602 | |
4177 | |
2603 | if (ev_is_active (w)) |
4178 | if (ev_is_active (w)) |
2604 | { |
4179 | { |
2605 | if (w->repeat) |
4180 | if (w->repeat) |
2606 | { |
4181 | { |
… | |
… | |
2619 | |
4194 | |
2620 | EV_FREQUENT_CHECK; |
4195 | EV_FREQUENT_CHECK; |
2621 | } |
4196 | } |
2622 | |
4197 | |
2623 | ev_tstamp |
4198 | ev_tstamp |
2624 | ev_timer_remaining (EV_P_ ev_timer *w) |
4199 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2625 | { |
4200 | { |
2626 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4201 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
2627 | } |
4202 | } |
2628 | |
4203 | |
2629 | #if EV_PERIODIC_ENABLE |
4204 | #if EV_PERIODIC_ENABLE |
2630 | void noinline |
4205 | ecb_noinline |
|
|
4206 | void |
2631 | ev_periodic_start (EV_P_ ev_periodic *w) |
4207 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2632 | { |
4208 | { |
2633 | if (expect_false (ev_is_active (w))) |
4209 | if (ecb_expect_false (ev_is_active (w))) |
2634 | return; |
4210 | return; |
2635 | |
4211 | |
2636 | if (w->reschedule_cb) |
4212 | if (w->reschedule_cb) |
2637 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4213 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2638 | else if (w->interval) |
4214 | else if (w->interval) |
2639 | { |
4215 | { |
2640 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4216 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2641 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4217 | periodic_recalc (EV_A_ w); |
2642 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2643 | } |
4218 | } |
2644 | else |
4219 | else |
2645 | ev_at (w) = w->offset; |
4220 | ev_at (w) = w->offset; |
2646 | |
4221 | |
2647 | EV_FREQUENT_CHECK; |
4222 | EV_FREQUENT_CHECK; |
2648 | |
4223 | |
2649 | ++periodiccnt; |
4224 | ++periodiccnt; |
2650 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4225 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2651 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4226 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2652 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4227 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2653 | ANHE_at_cache (periodics [ev_active (w)]); |
4228 | ANHE_at_cache (periodics [ev_active (w)]); |
2654 | upheap (periodics, ev_active (w)); |
4229 | upheap (periodics, ev_active (w)); |
2655 | |
4230 | |
2656 | EV_FREQUENT_CHECK; |
4231 | EV_FREQUENT_CHECK; |
2657 | |
4232 | |
2658 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4233 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2659 | } |
4234 | } |
2660 | |
4235 | |
2661 | void noinline |
4236 | ecb_noinline |
|
|
4237 | void |
2662 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4238 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2663 | { |
4239 | { |
2664 | clear_pending (EV_A_ (W)w); |
4240 | clear_pending (EV_A_ (W)w); |
2665 | if (expect_false (!ev_is_active (w))) |
4241 | if (ecb_expect_false (!ev_is_active (w))) |
2666 | return; |
4242 | return; |
2667 | |
4243 | |
2668 | EV_FREQUENT_CHECK; |
4244 | EV_FREQUENT_CHECK; |
2669 | |
4245 | |
2670 | { |
4246 | { |
… | |
… | |
2672 | |
4248 | |
2673 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4249 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2674 | |
4250 | |
2675 | --periodiccnt; |
4251 | --periodiccnt; |
2676 | |
4252 | |
2677 | if (expect_true (active < periodiccnt + HEAP0)) |
4253 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2678 | { |
4254 | { |
2679 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4255 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2680 | adjustheap (periodics, periodiccnt, active); |
4256 | adjustheap (periodics, periodiccnt, active); |
2681 | } |
4257 | } |
2682 | } |
4258 | } |
2683 | |
4259 | |
2684 | EV_FREQUENT_CHECK; |
|
|
2685 | |
|
|
2686 | ev_stop (EV_A_ (W)w); |
4260 | ev_stop (EV_A_ (W)w); |
2687 | } |
|
|
2688 | |
4261 | |
2689 | void noinline |
4262 | EV_FREQUENT_CHECK; |
|
|
4263 | } |
|
|
4264 | |
|
|
4265 | ecb_noinline |
|
|
4266 | void |
2690 | ev_periodic_again (EV_P_ ev_periodic *w) |
4267 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2691 | { |
4268 | { |
2692 | /* TODO: use adjustheap and recalculation */ |
4269 | /* TODO: use adjustheap and recalculation */ |
2693 | ev_periodic_stop (EV_A_ w); |
4270 | ev_periodic_stop (EV_A_ w); |
2694 | ev_periodic_start (EV_A_ w); |
4271 | ev_periodic_start (EV_A_ w); |
2695 | } |
4272 | } |
… | |
… | |
2697 | |
4274 | |
2698 | #ifndef SA_RESTART |
4275 | #ifndef SA_RESTART |
2699 | # define SA_RESTART 0 |
4276 | # define SA_RESTART 0 |
2700 | #endif |
4277 | #endif |
2701 | |
4278 | |
2702 | void noinline |
4279 | #if EV_SIGNAL_ENABLE |
|
|
4280 | |
|
|
4281 | ecb_noinline |
|
|
4282 | void |
2703 | ev_signal_start (EV_P_ ev_signal *w) |
4283 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2704 | { |
4284 | { |
2705 | if (expect_false (ev_is_active (w))) |
4285 | if (ecb_expect_false (ev_is_active (w))) |
2706 | return; |
4286 | return; |
2707 | |
4287 | |
2708 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4288 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2709 | |
4289 | |
2710 | #if EV_MULTIPLICITY |
4290 | #if EV_MULTIPLICITY |
2711 | assert (("libev: a signal must not be attached to two different loops", |
4291 | assert (("libev: a signal must not be attached to two different loops", |
2712 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4292 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2713 | |
4293 | |
2714 | signals [w->signum - 1].loop = EV_A; |
4294 | signals [w->signum - 1].loop = EV_A; |
|
|
4295 | ECB_MEMORY_FENCE_RELEASE; |
2715 | #endif |
4296 | #endif |
2716 | |
4297 | |
2717 | EV_FREQUENT_CHECK; |
4298 | EV_FREQUENT_CHECK; |
2718 | |
4299 | |
2719 | #if EV_USE_SIGNALFD |
4300 | #if EV_USE_SIGNALFD |
… | |
… | |
2752 | if (!((WL)w)->next) |
4333 | if (!((WL)w)->next) |
2753 | # if EV_USE_SIGNALFD |
4334 | # if EV_USE_SIGNALFD |
2754 | if (sigfd < 0) /*TODO*/ |
4335 | if (sigfd < 0) /*TODO*/ |
2755 | # endif |
4336 | # endif |
2756 | { |
4337 | { |
2757 | # if _WIN32 |
4338 | # ifdef _WIN32 |
|
|
4339 | evpipe_init (EV_A); |
|
|
4340 | |
2758 | signal (w->signum, ev_sighandler); |
4341 | signal (w->signum, ev_sighandler); |
2759 | # else |
4342 | # else |
2760 | struct sigaction sa; |
4343 | struct sigaction sa; |
2761 | |
4344 | |
2762 | evpipe_init (EV_A); |
4345 | evpipe_init (EV_A); |
… | |
… | |
2764 | sa.sa_handler = ev_sighandler; |
4347 | sa.sa_handler = ev_sighandler; |
2765 | sigfillset (&sa.sa_mask); |
4348 | sigfillset (&sa.sa_mask); |
2766 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4349 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2767 | sigaction (w->signum, &sa, 0); |
4350 | sigaction (w->signum, &sa, 0); |
2768 | |
4351 | |
|
|
4352 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4353 | { |
2769 | sigemptyset (&sa.sa_mask); |
4354 | sigemptyset (&sa.sa_mask); |
2770 | sigaddset (&sa.sa_mask, w->signum); |
4355 | sigaddset (&sa.sa_mask, w->signum); |
2771 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
4356 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4357 | } |
2772 | #endif |
4358 | #endif |
2773 | } |
4359 | } |
2774 | |
4360 | |
2775 | EV_FREQUENT_CHECK; |
4361 | EV_FREQUENT_CHECK; |
2776 | } |
4362 | } |
2777 | |
4363 | |
2778 | void noinline |
4364 | ecb_noinline |
|
|
4365 | void |
2779 | ev_signal_stop (EV_P_ ev_signal *w) |
4366 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2780 | { |
4367 | { |
2781 | clear_pending (EV_A_ (W)w); |
4368 | clear_pending (EV_A_ (W)w); |
2782 | if (expect_false (!ev_is_active (w))) |
4369 | if (ecb_expect_false (!ev_is_active (w))) |
2783 | return; |
4370 | return; |
2784 | |
4371 | |
2785 | EV_FREQUENT_CHECK; |
4372 | EV_FREQUENT_CHECK; |
2786 | |
4373 | |
2787 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4374 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
2793 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
4380 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2794 | #endif |
4381 | #endif |
2795 | #if EV_USE_SIGNALFD |
4382 | #if EV_USE_SIGNALFD |
2796 | if (sigfd >= 0) |
4383 | if (sigfd >= 0) |
2797 | { |
4384 | { |
2798 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
4385 | sigset_t ss; |
|
|
4386 | |
|
|
4387 | sigemptyset (&ss); |
|
|
4388 | sigaddset (&ss, w->signum); |
2799 | sigdelset (&sigfd_set, w->signum); |
4389 | sigdelset (&sigfd_set, w->signum); |
|
|
4390 | |
2800 | signalfd (sigfd, &sigfd_set, 0); |
4391 | signalfd (sigfd, &sigfd_set, 0); |
2801 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
4392 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2802 | /*TODO: maybe unblock signal? */ |
|
|
2803 | } |
4393 | } |
2804 | else |
4394 | else |
2805 | #endif |
4395 | #endif |
2806 | signal (w->signum, SIG_DFL); |
4396 | signal (w->signum, SIG_DFL); |
2807 | } |
4397 | } |
2808 | |
4398 | |
2809 | EV_FREQUENT_CHECK; |
4399 | EV_FREQUENT_CHECK; |
2810 | } |
4400 | } |
2811 | |
4401 | |
|
|
4402 | #endif |
|
|
4403 | |
|
|
4404 | #if EV_CHILD_ENABLE |
|
|
4405 | |
2812 | void |
4406 | void |
2813 | ev_child_start (EV_P_ ev_child *w) |
4407 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2814 | { |
4408 | { |
2815 | #if EV_MULTIPLICITY |
4409 | #if EV_MULTIPLICITY |
2816 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4410 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2817 | #endif |
4411 | #endif |
2818 | if (expect_false (ev_is_active (w))) |
4412 | if (ecb_expect_false (ev_is_active (w))) |
2819 | return; |
4413 | return; |
2820 | |
4414 | |
2821 | EV_FREQUENT_CHECK; |
4415 | EV_FREQUENT_CHECK; |
2822 | |
4416 | |
2823 | ev_start (EV_A_ (W)w, 1); |
4417 | ev_start (EV_A_ (W)w, 1); |
2824 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4418 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2825 | |
4419 | |
2826 | EV_FREQUENT_CHECK; |
4420 | EV_FREQUENT_CHECK; |
2827 | } |
4421 | } |
2828 | |
4422 | |
2829 | void |
4423 | void |
2830 | ev_child_stop (EV_P_ ev_child *w) |
4424 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2831 | { |
4425 | { |
2832 | clear_pending (EV_A_ (W)w); |
4426 | clear_pending (EV_A_ (W)w); |
2833 | if (expect_false (!ev_is_active (w))) |
4427 | if (ecb_expect_false (!ev_is_active (w))) |
2834 | return; |
4428 | return; |
2835 | |
4429 | |
2836 | EV_FREQUENT_CHECK; |
4430 | EV_FREQUENT_CHECK; |
2837 | |
4431 | |
2838 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4432 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2839 | ev_stop (EV_A_ (W)w); |
4433 | ev_stop (EV_A_ (W)w); |
2840 | |
4434 | |
2841 | EV_FREQUENT_CHECK; |
4435 | EV_FREQUENT_CHECK; |
2842 | } |
4436 | } |
|
|
4437 | |
|
|
4438 | #endif |
2843 | |
4439 | |
2844 | #if EV_STAT_ENABLE |
4440 | #if EV_STAT_ENABLE |
2845 | |
4441 | |
2846 | # ifdef _WIN32 |
4442 | # ifdef _WIN32 |
2847 | # undef lstat |
4443 | # undef lstat |
… | |
… | |
2850 | |
4446 | |
2851 | #define DEF_STAT_INTERVAL 5.0074891 |
4447 | #define DEF_STAT_INTERVAL 5.0074891 |
2852 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4448 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2853 | #define MIN_STAT_INTERVAL 0.1074891 |
4449 | #define MIN_STAT_INTERVAL 0.1074891 |
2854 | |
4450 | |
2855 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4451 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2856 | |
4452 | |
2857 | #if EV_USE_INOTIFY |
4453 | #if EV_USE_INOTIFY |
2858 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2859 | |
4454 | |
2860 | static void noinline |
4455 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
4456 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
4457 | |
|
|
4458 | ecb_noinline |
|
|
4459 | static void |
2861 | infy_add (EV_P_ ev_stat *w) |
4460 | infy_add (EV_P_ ev_stat *w) |
2862 | { |
4461 | { |
2863 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4462 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4463 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4464 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4465 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2864 | |
4466 | |
2865 | if (w->wd < 0) |
4467 | if (w->wd >= 0) |
|
|
4468 | { |
|
|
4469 | struct statfs sfs; |
|
|
4470 | |
|
|
4471 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
4472 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
4473 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
4474 | |
|
|
4475 | if (!fs_2625) |
|
|
4476 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4477 | else if (!statfs (w->path, &sfs) |
|
|
4478 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4479 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4480 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
4481 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4482 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4483 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4484 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
4485 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4486 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
4487 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
4488 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
4489 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
4490 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
4491 | else |
|
|
4492 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2866 | { |
4493 | } |
|
|
4494 | else |
|
|
4495 | { |
|
|
4496 | /* can't use inotify, continue to stat */ |
2867 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4497 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2868 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2869 | |
4498 | |
2870 | /* monitor some parent directory for speedup hints */ |
4499 | /* if path is not there, monitor some parent directory for speedup hints */ |
2871 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
4500 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2872 | /* but an efficiency issue only */ |
4501 | /* but an efficiency issue only */ |
2873 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
4502 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2874 | { |
4503 | { |
2875 | char path [4096]; |
4504 | char path [4096]; |
… | |
… | |
2885 | if (!pend || pend == path) |
4514 | if (!pend || pend == path) |
2886 | break; |
4515 | break; |
2887 | |
4516 | |
2888 | *pend = 0; |
4517 | *pend = 0; |
2889 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4518 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2890 | } |
4519 | } |
2891 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4520 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2892 | } |
4521 | } |
2893 | } |
4522 | } |
2894 | |
4523 | |
2895 | if (w->wd >= 0) |
4524 | if (w->wd >= 0) |
2896 | { |
|
|
2897 | struct statfs sfs; |
|
|
2898 | |
|
|
2899 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4525 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2900 | |
4526 | |
2901 | /* now local changes will be tracked by inotify, but remote changes won't */ |
4527 | /* now re-arm timer, if required */ |
2902 | /* unless the filesystem it known to be local, we therefore still poll */ |
4528 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2903 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2904 | |
|
|
2905 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2906 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2907 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2908 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2909 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2910 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2911 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2912 | return; |
|
|
2913 | |
|
|
2914 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2915 | ev_timer_again (EV_A_ &w->timer); |
4529 | ev_timer_again (EV_A_ &w->timer); |
2916 | } |
4530 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2917 | } |
4531 | } |
2918 | |
4532 | |
2919 | static void noinline |
4533 | ecb_noinline |
|
|
4534 | static void |
2920 | infy_del (EV_P_ ev_stat *w) |
4535 | infy_del (EV_P_ ev_stat *w) |
2921 | { |
4536 | { |
2922 | int slot; |
4537 | int slot; |
2923 | int wd = w->wd; |
4538 | int wd = w->wd; |
2924 | |
4539 | |
2925 | if (wd < 0) |
4540 | if (wd < 0) |
2926 | return; |
4541 | return; |
2927 | |
4542 | |
2928 | w->wd = -2; |
4543 | w->wd = -2; |
2929 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4544 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2930 | wlist_del (&fs_hash [slot].head, (WL)w); |
4545 | wlist_del (&fs_hash [slot].head, (WL)w); |
2931 | |
4546 | |
2932 | /* remove this watcher, if others are watching it, they will rearm */ |
4547 | /* remove this watcher, if others are watching it, they will rearm */ |
2933 | inotify_rm_watch (fs_fd, wd); |
4548 | inotify_rm_watch (fs_fd, wd); |
2934 | } |
4549 | } |
2935 | |
4550 | |
2936 | static void noinline |
4551 | ecb_noinline |
|
|
4552 | static void |
2937 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4553 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2938 | { |
4554 | { |
2939 | if (slot < 0) |
4555 | if (slot < 0) |
2940 | /* overflow, need to check for all hash slots */ |
4556 | /* overflow, need to check for all hash slots */ |
2941 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4557 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2942 | infy_wd (EV_A_ slot, wd, ev); |
4558 | infy_wd (EV_A_ slot, wd, ev); |
2943 | else |
4559 | else |
2944 | { |
4560 | { |
2945 | WL w_; |
4561 | WL w_; |
2946 | |
4562 | |
2947 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4563 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2948 | { |
4564 | { |
2949 | ev_stat *w = (ev_stat *)w_; |
4565 | ev_stat *w = (ev_stat *)w_; |
2950 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4566 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2951 | |
4567 | |
2952 | if (w->wd == wd || wd == -1) |
4568 | if (w->wd == wd || wd == -1) |
2953 | { |
4569 | { |
2954 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4570 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2955 | { |
4571 | { |
2956 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4572 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2957 | w->wd = -1; |
4573 | w->wd = -1; |
2958 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4574 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2959 | } |
4575 | } |
2960 | |
4576 | |
2961 | stat_timer_cb (EV_A_ &w->timer, 0); |
4577 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2966 | |
4582 | |
2967 | static void |
4583 | static void |
2968 | infy_cb (EV_P_ ev_io *w, int revents) |
4584 | infy_cb (EV_P_ ev_io *w, int revents) |
2969 | { |
4585 | { |
2970 | char buf [EV_INOTIFY_BUFSIZE]; |
4586 | char buf [EV_INOTIFY_BUFSIZE]; |
2971 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2972 | int ofs; |
4587 | int ofs; |
2973 | int len = read (fs_fd, buf, sizeof (buf)); |
4588 | int len = read (fs_fd, buf, sizeof (buf)); |
2974 | |
4589 | |
2975 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4590 | for (ofs = 0; ofs < len; ) |
|
|
4591 | { |
|
|
4592 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2976 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4593 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4594 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4595 | } |
2977 | } |
4596 | } |
2978 | |
4597 | |
2979 | inline_size void |
4598 | inline_size ecb_cold |
|
|
4599 | void |
2980 | check_2625 (EV_P) |
4600 | ev_check_2625 (EV_P) |
2981 | { |
4601 | { |
2982 | /* kernels < 2.6.25 are borked |
4602 | /* kernels < 2.6.25 are borked |
2983 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4603 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2984 | */ |
4604 | */ |
2985 | struct utsname buf; |
4605 | if (ev_linux_version () < 0x020619) |
2986 | int major, minor, micro; |
|
|
2987 | |
|
|
2988 | if (uname (&buf)) |
|
|
2989 | return; |
4606 | return; |
2990 | |
4607 | |
2991 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2992 | return; |
|
|
2993 | |
|
|
2994 | if (major < 2 |
|
|
2995 | || (major == 2 && minor < 6) |
|
|
2996 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2997 | return; |
|
|
2998 | |
|
|
2999 | fs_2625 = 1; |
4608 | fs_2625 = 1; |
|
|
4609 | } |
|
|
4610 | |
|
|
4611 | inline_size int |
|
|
4612 | infy_newfd (void) |
|
|
4613 | { |
|
|
4614 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4615 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4616 | if (fd >= 0) |
|
|
4617 | return fd; |
|
|
4618 | #endif |
|
|
4619 | return inotify_init (); |
3000 | } |
4620 | } |
3001 | |
4621 | |
3002 | inline_size void |
4622 | inline_size void |
3003 | infy_init (EV_P) |
4623 | infy_init (EV_P) |
3004 | { |
4624 | { |
3005 | if (fs_fd != -2) |
4625 | if (fs_fd != -2) |
3006 | return; |
4626 | return; |
3007 | |
4627 | |
3008 | fs_fd = -1; |
4628 | fs_fd = -1; |
3009 | |
4629 | |
3010 | check_2625 (EV_A); |
4630 | ev_check_2625 (EV_A); |
3011 | |
4631 | |
3012 | fs_fd = inotify_init (); |
4632 | fs_fd = infy_newfd (); |
3013 | |
4633 | |
3014 | if (fs_fd >= 0) |
4634 | if (fs_fd >= 0) |
3015 | { |
4635 | { |
|
|
4636 | fd_intern (fs_fd); |
3016 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4637 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3017 | ev_set_priority (&fs_w, EV_MAXPRI); |
4638 | ev_set_priority (&fs_w, EV_MAXPRI); |
3018 | ev_io_start (EV_A_ &fs_w); |
4639 | ev_io_start (EV_A_ &fs_w); |
|
|
4640 | ev_unref (EV_A); |
3019 | } |
4641 | } |
3020 | } |
4642 | } |
3021 | |
4643 | |
3022 | inline_size void |
4644 | inline_size void |
3023 | infy_fork (EV_P) |
4645 | infy_fork (EV_P) |
… | |
… | |
3025 | int slot; |
4647 | int slot; |
3026 | |
4648 | |
3027 | if (fs_fd < 0) |
4649 | if (fs_fd < 0) |
3028 | return; |
4650 | return; |
3029 | |
4651 | |
|
|
4652 | ev_ref (EV_A); |
|
|
4653 | ev_io_stop (EV_A_ &fs_w); |
3030 | close (fs_fd); |
4654 | close (fs_fd); |
3031 | fs_fd = inotify_init (); |
4655 | fs_fd = infy_newfd (); |
3032 | |
4656 | |
|
|
4657 | if (fs_fd >= 0) |
|
|
4658 | { |
|
|
4659 | fd_intern (fs_fd); |
|
|
4660 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4661 | ev_io_start (EV_A_ &fs_w); |
|
|
4662 | ev_unref (EV_A); |
|
|
4663 | } |
|
|
4664 | |
3033 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4665 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3034 | { |
4666 | { |
3035 | WL w_ = fs_hash [slot].head; |
4667 | WL w_ = fs_hash [slot].head; |
3036 | fs_hash [slot].head = 0; |
4668 | fs_hash [slot].head = 0; |
3037 | |
4669 | |
3038 | while (w_) |
4670 | while (w_) |
… | |
… | |
3043 | w->wd = -1; |
4675 | w->wd = -1; |
3044 | |
4676 | |
3045 | if (fs_fd >= 0) |
4677 | if (fs_fd >= 0) |
3046 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4678 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3047 | else |
4679 | else |
|
|
4680 | { |
|
|
4681 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4682 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3048 | ev_timer_again (EV_A_ &w->timer); |
4683 | ev_timer_again (EV_A_ &w->timer); |
|
|
4684 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4685 | } |
3049 | } |
4686 | } |
3050 | } |
4687 | } |
3051 | } |
4688 | } |
3052 | |
4689 | |
3053 | #endif |
4690 | #endif |
… | |
… | |
3057 | #else |
4694 | #else |
3058 | # define EV_LSTAT(p,b) lstat (p, b) |
4695 | # define EV_LSTAT(p,b) lstat (p, b) |
3059 | #endif |
4696 | #endif |
3060 | |
4697 | |
3061 | void |
4698 | void |
3062 | ev_stat_stat (EV_P_ ev_stat *w) |
4699 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3063 | { |
4700 | { |
3064 | if (lstat (w->path, &w->attr) < 0) |
4701 | if (lstat (w->path, &w->attr) < 0) |
3065 | w->attr.st_nlink = 0; |
4702 | w->attr.st_nlink = 0; |
3066 | else if (!w->attr.st_nlink) |
4703 | else if (!w->attr.st_nlink) |
3067 | w->attr.st_nlink = 1; |
4704 | w->attr.st_nlink = 1; |
3068 | } |
4705 | } |
3069 | |
4706 | |
3070 | static void noinline |
4707 | ecb_noinline |
|
|
4708 | static void |
3071 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4709 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3072 | { |
4710 | { |
3073 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4711 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3074 | |
4712 | |
3075 | /* we copy this here each the time so that */ |
4713 | ev_statdata prev = w->attr; |
3076 | /* prev has the old value when the callback gets invoked */ |
|
|
3077 | w->prev = w->attr; |
|
|
3078 | ev_stat_stat (EV_A_ w); |
4714 | ev_stat_stat (EV_A_ w); |
3079 | |
4715 | |
3080 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4716 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3081 | if ( |
4717 | if ( |
3082 | w->prev.st_dev != w->attr.st_dev |
4718 | prev.st_dev != w->attr.st_dev |
3083 | || w->prev.st_ino != w->attr.st_ino |
4719 | || prev.st_ino != w->attr.st_ino |
3084 | || w->prev.st_mode != w->attr.st_mode |
4720 | || prev.st_mode != w->attr.st_mode |
3085 | || w->prev.st_nlink != w->attr.st_nlink |
4721 | || prev.st_nlink != w->attr.st_nlink |
3086 | || w->prev.st_uid != w->attr.st_uid |
4722 | || prev.st_uid != w->attr.st_uid |
3087 | || w->prev.st_gid != w->attr.st_gid |
4723 | || prev.st_gid != w->attr.st_gid |
3088 | || w->prev.st_rdev != w->attr.st_rdev |
4724 | || prev.st_rdev != w->attr.st_rdev |
3089 | || w->prev.st_size != w->attr.st_size |
4725 | || prev.st_size != w->attr.st_size |
3090 | || w->prev.st_atime != w->attr.st_atime |
4726 | || prev.st_atime != w->attr.st_atime |
3091 | || w->prev.st_mtime != w->attr.st_mtime |
4727 | || prev.st_mtime != w->attr.st_mtime |
3092 | || w->prev.st_ctime != w->attr.st_ctime |
4728 | || prev.st_ctime != w->attr.st_ctime |
3093 | ) { |
4729 | ) { |
|
|
4730 | /* we only update w->prev on actual differences */ |
|
|
4731 | /* in case we test more often than invoke the callback, */ |
|
|
4732 | /* to ensure that prev is always different to attr */ |
|
|
4733 | w->prev = prev; |
|
|
4734 | |
3094 | #if EV_USE_INOTIFY |
4735 | #if EV_USE_INOTIFY |
3095 | if (fs_fd >= 0) |
4736 | if (fs_fd >= 0) |
3096 | { |
4737 | { |
3097 | infy_del (EV_A_ w); |
4738 | infy_del (EV_A_ w); |
3098 | infy_add (EV_A_ w); |
4739 | infy_add (EV_A_ w); |
… | |
… | |
3103 | ev_feed_event (EV_A_ w, EV_STAT); |
4744 | ev_feed_event (EV_A_ w, EV_STAT); |
3104 | } |
4745 | } |
3105 | } |
4746 | } |
3106 | |
4747 | |
3107 | void |
4748 | void |
3108 | ev_stat_start (EV_P_ ev_stat *w) |
4749 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3109 | { |
4750 | { |
3110 | if (expect_false (ev_is_active (w))) |
4751 | if (ecb_expect_false (ev_is_active (w))) |
3111 | return; |
4752 | return; |
3112 | |
4753 | |
3113 | ev_stat_stat (EV_A_ w); |
4754 | ev_stat_stat (EV_A_ w); |
3114 | |
4755 | |
3115 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4756 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3123 | |
4764 | |
3124 | if (fs_fd >= 0) |
4765 | if (fs_fd >= 0) |
3125 | infy_add (EV_A_ w); |
4766 | infy_add (EV_A_ w); |
3126 | else |
4767 | else |
3127 | #endif |
4768 | #endif |
|
|
4769 | { |
3128 | ev_timer_again (EV_A_ &w->timer); |
4770 | ev_timer_again (EV_A_ &w->timer); |
|
|
4771 | ev_unref (EV_A); |
|
|
4772 | } |
3129 | |
4773 | |
3130 | ev_start (EV_A_ (W)w, 1); |
4774 | ev_start (EV_A_ (W)w, 1); |
3131 | |
4775 | |
3132 | EV_FREQUENT_CHECK; |
4776 | EV_FREQUENT_CHECK; |
3133 | } |
4777 | } |
3134 | |
4778 | |
3135 | void |
4779 | void |
3136 | ev_stat_stop (EV_P_ ev_stat *w) |
4780 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3137 | { |
4781 | { |
3138 | clear_pending (EV_A_ (W)w); |
4782 | clear_pending (EV_A_ (W)w); |
3139 | if (expect_false (!ev_is_active (w))) |
4783 | if (ecb_expect_false (!ev_is_active (w))) |
3140 | return; |
4784 | return; |
3141 | |
4785 | |
3142 | EV_FREQUENT_CHECK; |
4786 | EV_FREQUENT_CHECK; |
3143 | |
4787 | |
3144 | #if EV_USE_INOTIFY |
4788 | #if EV_USE_INOTIFY |
3145 | infy_del (EV_A_ w); |
4789 | infy_del (EV_A_ w); |
3146 | #endif |
4790 | #endif |
|
|
4791 | |
|
|
4792 | if (ev_is_active (&w->timer)) |
|
|
4793 | { |
|
|
4794 | ev_ref (EV_A); |
3147 | ev_timer_stop (EV_A_ &w->timer); |
4795 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4796 | } |
3148 | |
4797 | |
3149 | ev_stop (EV_A_ (W)w); |
4798 | ev_stop (EV_A_ (W)w); |
3150 | |
4799 | |
3151 | EV_FREQUENT_CHECK; |
4800 | EV_FREQUENT_CHECK; |
3152 | } |
4801 | } |
3153 | #endif |
4802 | #endif |
3154 | |
4803 | |
3155 | #if EV_IDLE_ENABLE |
4804 | #if EV_IDLE_ENABLE |
3156 | void |
4805 | void |
3157 | ev_idle_start (EV_P_ ev_idle *w) |
4806 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3158 | { |
4807 | { |
3159 | if (expect_false (ev_is_active (w))) |
4808 | if (ecb_expect_false (ev_is_active (w))) |
3160 | return; |
4809 | return; |
3161 | |
4810 | |
3162 | pri_adjust (EV_A_ (W)w); |
4811 | pri_adjust (EV_A_ (W)w); |
3163 | |
4812 | |
3164 | EV_FREQUENT_CHECK; |
4813 | EV_FREQUENT_CHECK; |
… | |
… | |
3167 | int active = ++idlecnt [ABSPRI (w)]; |
4816 | int active = ++idlecnt [ABSPRI (w)]; |
3168 | |
4817 | |
3169 | ++idleall; |
4818 | ++idleall; |
3170 | ev_start (EV_A_ (W)w, active); |
4819 | ev_start (EV_A_ (W)w, active); |
3171 | |
4820 | |
3172 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4821 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3173 | idles [ABSPRI (w)][active - 1] = w; |
4822 | idles [ABSPRI (w)][active - 1] = w; |
3174 | } |
4823 | } |
3175 | |
4824 | |
3176 | EV_FREQUENT_CHECK; |
4825 | EV_FREQUENT_CHECK; |
3177 | } |
4826 | } |
3178 | |
4827 | |
3179 | void |
4828 | void |
3180 | ev_idle_stop (EV_P_ ev_idle *w) |
4829 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3181 | { |
4830 | { |
3182 | clear_pending (EV_A_ (W)w); |
4831 | clear_pending (EV_A_ (W)w); |
3183 | if (expect_false (!ev_is_active (w))) |
4832 | if (ecb_expect_false (!ev_is_active (w))) |
3184 | return; |
4833 | return; |
3185 | |
4834 | |
3186 | EV_FREQUENT_CHECK; |
4835 | EV_FREQUENT_CHECK; |
3187 | |
4836 | |
3188 | { |
4837 | { |
… | |
… | |
3197 | |
4846 | |
3198 | EV_FREQUENT_CHECK; |
4847 | EV_FREQUENT_CHECK; |
3199 | } |
4848 | } |
3200 | #endif |
4849 | #endif |
3201 | |
4850 | |
|
|
4851 | #if EV_PREPARE_ENABLE |
3202 | void |
4852 | void |
3203 | ev_prepare_start (EV_P_ ev_prepare *w) |
4853 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3204 | { |
4854 | { |
3205 | if (expect_false (ev_is_active (w))) |
4855 | if (ecb_expect_false (ev_is_active (w))) |
3206 | return; |
4856 | return; |
3207 | |
4857 | |
3208 | EV_FREQUENT_CHECK; |
4858 | EV_FREQUENT_CHECK; |
3209 | |
4859 | |
3210 | ev_start (EV_A_ (W)w, ++preparecnt); |
4860 | ev_start (EV_A_ (W)w, ++preparecnt); |
3211 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4861 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3212 | prepares [preparecnt - 1] = w; |
4862 | prepares [preparecnt - 1] = w; |
3213 | |
4863 | |
3214 | EV_FREQUENT_CHECK; |
4864 | EV_FREQUENT_CHECK; |
3215 | } |
4865 | } |
3216 | |
4866 | |
3217 | void |
4867 | void |
3218 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4868 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3219 | { |
4869 | { |
3220 | clear_pending (EV_A_ (W)w); |
4870 | clear_pending (EV_A_ (W)w); |
3221 | if (expect_false (!ev_is_active (w))) |
4871 | if (ecb_expect_false (!ev_is_active (w))) |
3222 | return; |
4872 | return; |
3223 | |
4873 | |
3224 | EV_FREQUENT_CHECK; |
4874 | EV_FREQUENT_CHECK; |
3225 | |
4875 | |
3226 | { |
4876 | { |
… | |
… | |
3232 | |
4882 | |
3233 | ev_stop (EV_A_ (W)w); |
4883 | ev_stop (EV_A_ (W)w); |
3234 | |
4884 | |
3235 | EV_FREQUENT_CHECK; |
4885 | EV_FREQUENT_CHECK; |
3236 | } |
4886 | } |
|
|
4887 | #endif |
3237 | |
4888 | |
|
|
4889 | #if EV_CHECK_ENABLE |
3238 | void |
4890 | void |
3239 | ev_check_start (EV_P_ ev_check *w) |
4891 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3240 | { |
4892 | { |
3241 | if (expect_false (ev_is_active (w))) |
4893 | if (ecb_expect_false (ev_is_active (w))) |
3242 | return; |
4894 | return; |
3243 | |
4895 | |
3244 | EV_FREQUENT_CHECK; |
4896 | EV_FREQUENT_CHECK; |
3245 | |
4897 | |
3246 | ev_start (EV_A_ (W)w, ++checkcnt); |
4898 | ev_start (EV_A_ (W)w, ++checkcnt); |
3247 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4899 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3248 | checks [checkcnt - 1] = w; |
4900 | checks [checkcnt - 1] = w; |
3249 | |
4901 | |
3250 | EV_FREQUENT_CHECK; |
4902 | EV_FREQUENT_CHECK; |
3251 | } |
4903 | } |
3252 | |
4904 | |
3253 | void |
4905 | void |
3254 | ev_check_stop (EV_P_ ev_check *w) |
4906 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3255 | { |
4907 | { |
3256 | clear_pending (EV_A_ (W)w); |
4908 | clear_pending (EV_A_ (W)w); |
3257 | if (expect_false (!ev_is_active (w))) |
4909 | if (ecb_expect_false (!ev_is_active (w))) |
3258 | return; |
4910 | return; |
3259 | |
4911 | |
3260 | EV_FREQUENT_CHECK; |
4912 | EV_FREQUENT_CHECK; |
3261 | |
4913 | |
3262 | { |
4914 | { |
… | |
… | |
3268 | |
4920 | |
3269 | ev_stop (EV_A_ (W)w); |
4921 | ev_stop (EV_A_ (W)w); |
3270 | |
4922 | |
3271 | EV_FREQUENT_CHECK; |
4923 | EV_FREQUENT_CHECK; |
3272 | } |
4924 | } |
|
|
4925 | #endif |
3273 | |
4926 | |
3274 | #if EV_EMBED_ENABLE |
4927 | #if EV_EMBED_ENABLE |
3275 | void noinline |
4928 | ecb_noinline |
|
|
4929 | void |
3276 | ev_embed_sweep (EV_P_ ev_embed *w) |
4930 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3277 | { |
4931 | { |
3278 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4932 | ev_run (w->other, EVRUN_NOWAIT); |
3279 | } |
4933 | } |
3280 | |
4934 | |
3281 | static void |
4935 | static void |
3282 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4936 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3283 | { |
4937 | { |
3284 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4938 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3285 | |
4939 | |
3286 | if (ev_cb (w)) |
4940 | if (ev_cb (w)) |
3287 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4941 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3288 | else |
4942 | else |
3289 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4943 | ev_run (w->other, EVRUN_NOWAIT); |
3290 | } |
4944 | } |
3291 | |
4945 | |
3292 | static void |
4946 | static void |
3293 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4947 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3294 | { |
4948 | { |
… | |
… | |
3298 | EV_P = w->other; |
4952 | EV_P = w->other; |
3299 | |
4953 | |
3300 | while (fdchangecnt) |
4954 | while (fdchangecnt) |
3301 | { |
4955 | { |
3302 | fd_reify (EV_A); |
4956 | fd_reify (EV_A); |
3303 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4957 | ev_run (EV_A_ EVRUN_NOWAIT); |
3304 | } |
4958 | } |
3305 | } |
4959 | } |
3306 | } |
4960 | } |
3307 | |
4961 | |
3308 | static void |
4962 | static void |
… | |
… | |
3314 | |
4968 | |
3315 | { |
4969 | { |
3316 | EV_P = w->other; |
4970 | EV_P = w->other; |
3317 | |
4971 | |
3318 | ev_loop_fork (EV_A); |
4972 | ev_loop_fork (EV_A); |
3319 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4973 | ev_run (EV_A_ EVRUN_NOWAIT); |
3320 | } |
4974 | } |
3321 | |
4975 | |
3322 | ev_embed_start (EV_A_ w); |
4976 | ev_embed_start (EV_A_ w); |
3323 | } |
4977 | } |
3324 | |
4978 | |
… | |
… | |
3329 | ev_idle_stop (EV_A_ idle); |
4983 | ev_idle_stop (EV_A_ idle); |
3330 | } |
4984 | } |
3331 | #endif |
4985 | #endif |
3332 | |
4986 | |
3333 | void |
4987 | void |
3334 | ev_embed_start (EV_P_ ev_embed *w) |
4988 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3335 | { |
4989 | { |
3336 | if (expect_false (ev_is_active (w))) |
4990 | if (ecb_expect_false (ev_is_active (w))) |
3337 | return; |
4991 | return; |
3338 | |
4992 | |
3339 | { |
4993 | { |
3340 | EV_P = w->other; |
4994 | EV_P = w->other; |
3341 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4995 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
3360 | |
5014 | |
3361 | EV_FREQUENT_CHECK; |
5015 | EV_FREQUENT_CHECK; |
3362 | } |
5016 | } |
3363 | |
5017 | |
3364 | void |
5018 | void |
3365 | ev_embed_stop (EV_P_ ev_embed *w) |
5019 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3366 | { |
5020 | { |
3367 | clear_pending (EV_A_ (W)w); |
5021 | clear_pending (EV_A_ (W)w); |
3368 | if (expect_false (!ev_is_active (w))) |
5022 | if (ecb_expect_false (!ev_is_active (w))) |
3369 | return; |
5023 | return; |
3370 | |
5024 | |
3371 | EV_FREQUENT_CHECK; |
5025 | EV_FREQUENT_CHECK; |
3372 | |
5026 | |
3373 | ev_io_stop (EV_A_ &w->io); |
5027 | ev_io_stop (EV_A_ &w->io); |
3374 | ev_prepare_stop (EV_A_ &w->prepare); |
5028 | ev_prepare_stop (EV_A_ &w->prepare); |
3375 | ev_fork_stop (EV_A_ &w->fork); |
5029 | ev_fork_stop (EV_A_ &w->fork); |
3376 | |
5030 | |
|
|
5031 | ev_stop (EV_A_ (W)w); |
|
|
5032 | |
3377 | EV_FREQUENT_CHECK; |
5033 | EV_FREQUENT_CHECK; |
3378 | } |
5034 | } |
3379 | #endif |
5035 | #endif |
3380 | |
5036 | |
3381 | #if EV_FORK_ENABLE |
5037 | #if EV_FORK_ENABLE |
3382 | void |
5038 | void |
3383 | ev_fork_start (EV_P_ ev_fork *w) |
5039 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3384 | { |
5040 | { |
3385 | if (expect_false (ev_is_active (w))) |
5041 | if (ecb_expect_false (ev_is_active (w))) |
3386 | return; |
5042 | return; |
3387 | |
5043 | |
3388 | EV_FREQUENT_CHECK; |
5044 | EV_FREQUENT_CHECK; |
3389 | |
5045 | |
3390 | ev_start (EV_A_ (W)w, ++forkcnt); |
5046 | ev_start (EV_A_ (W)w, ++forkcnt); |
3391 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5047 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3392 | forks [forkcnt - 1] = w; |
5048 | forks [forkcnt - 1] = w; |
3393 | |
5049 | |
3394 | EV_FREQUENT_CHECK; |
5050 | EV_FREQUENT_CHECK; |
3395 | } |
5051 | } |
3396 | |
5052 | |
3397 | void |
5053 | void |
3398 | ev_fork_stop (EV_P_ ev_fork *w) |
5054 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3399 | { |
5055 | { |
3400 | clear_pending (EV_A_ (W)w); |
5056 | clear_pending (EV_A_ (W)w); |
3401 | if (expect_false (!ev_is_active (w))) |
5057 | if (ecb_expect_false (!ev_is_active (w))) |
3402 | return; |
5058 | return; |
3403 | |
5059 | |
3404 | EV_FREQUENT_CHECK; |
5060 | EV_FREQUENT_CHECK; |
3405 | |
5061 | |
3406 | { |
5062 | { |
… | |
… | |
3414 | |
5070 | |
3415 | EV_FREQUENT_CHECK; |
5071 | EV_FREQUENT_CHECK; |
3416 | } |
5072 | } |
3417 | #endif |
5073 | #endif |
3418 | |
5074 | |
|
|
5075 | #if EV_CLEANUP_ENABLE |
|
|
5076 | void |
|
|
5077 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5078 | { |
|
|
5079 | if (ecb_expect_false (ev_is_active (w))) |
|
|
5080 | return; |
|
|
5081 | |
|
|
5082 | EV_FREQUENT_CHECK; |
|
|
5083 | |
|
|
5084 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
5085 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
|
|
5086 | cleanups [cleanupcnt - 1] = w; |
|
|
5087 | |
|
|
5088 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
5089 | ev_unref (EV_A); |
|
|
5090 | EV_FREQUENT_CHECK; |
|
|
5091 | } |
|
|
5092 | |
|
|
5093 | void |
|
|
5094 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5095 | { |
|
|
5096 | clear_pending (EV_A_ (W)w); |
|
|
5097 | if (ecb_expect_false (!ev_is_active (w))) |
|
|
5098 | return; |
|
|
5099 | |
|
|
5100 | EV_FREQUENT_CHECK; |
|
|
5101 | ev_ref (EV_A); |
|
|
5102 | |
|
|
5103 | { |
|
|
5104 | int active = ev_active (w); |
|
|
5105 | |
|
|
5106 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
5107 | ev_active (cleanups [active - 1]) = active; |
|
|
5108 | } |
|
|
5109 | |
|
|
5110 | ev_stop (EV_A_ (W)w); |
|
|
5111 | |
|
|
5112 | EV_FREQUENT_CHECK; |
|
|
5113 | } |
|
|
5114 | #endif |
|
|
5115 | |
3419 | #if EV_ASYNC_ENABLE |
5116 | #if EV_ASYNC_ENABLE |
3420 | void |
5117 | void |
3421 | ev_async_start (EV_P_ ev_async *w) |
5118 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3422 | { |
5119 | { |
3423 | if (expect_false (ev_is_active (w))) |
5120 | if (ecb_expect_false (ev_is_active (w))) |
3424 | return; |
5121 | return; |
3425 | |
5122 | |
|
|
5123 | w->sent = 0; |
|
|
5124 | |
3426 | evpipe_init (EV_A); |
5125 | evpipe_init (EV_A); |
3427 | |
5126 | |
3428 | EV_FREQUENT_CHECK; |
5127 | EV_FREQUENT_CHECK; |
3429 | |
5128 | |
3430 | ev_start (EV_A_ (W)w, ++asynccnt); |
5129 | ev_start (EV_A_ (W)w, ++asynccnt); |
3431 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5130 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3432 | asyncs [asynccnt - 1] = w; |
5131 | asyncs [asynccnt - 1] = w; |
3433 | |
5132 | |
3434 | EV_FREQUENT_CHECK; |
5133 | EV_FREQUENT_CHECK; |
3435 | } |
5134 | } |
3436 | |
5135 | |
3437 | void |
5136 | void |
3438 | ev_async_stop (EV_P_ ev_async *w) |
5137 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3439 | { |
5138 | { |
3440 | clear_pending (EV_A_ (W)w); |
5139 | clear_pending (EV_A_ (W)w); |
3441 | if (expect_false (!ev_is_active (w))) |
5140 | if (ecb_expect_false (!ev_is_active (w))) |
3442 | return; |
5141 | return; |
3443 | |
5142 | |
3444 | EV_FREQUENT_CHECK; |
5143 | EV_FREQUENT_CHECK; |
3445 | |
5144 | |
3446 | { |
5145 | { |
… | |
… | |
3454 | |
5153 | |
3455 | EV_FREQUENT_CHECK; |
5154 | EV_FREQUENT_CHECK; |
3456 | } |
5155 | } |
3457 | |
5156 | |
3458 | void |
5157 | void |
3459 | ev_async_send (EV_P_ ev_async *w) |
5158 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3460 | { |
5159 | { |
3461 | w->sent = 1; |
5160 | w->sent = 1; |
3462 | evpipe_write (EV_A_ &async_pending); |
5161 | evpipe_write (EV_A_ &async_pending); |
3463 | } |
5162 | } |
3464 | #endif |
5163 | #endif |
… | |
… | |
3501 | |
5200 | |
3502 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5201 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3503 | } |
5202 | } |
3504 | |
5203 | |
3505 | void |
5204 | void |
3506 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5205 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3507 | { |
5206 | { |
3508 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5207 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3509 | |
|
|
3510 | if (expect_false (!once)) |
|
|
3511 | { |
|
|
3512 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
3513 | return; |
|
|
3514 | } |
|
|
3515 | |
5208 | |
3516 | once->cb = cb; |
5209 | once->cb = cb; |
3517 | once->arg = arg; |
5210 | once->arg = arg; |
3518 | |
5211 | |
3519 | ev_init (&once->io, once_cb_io); |
5212 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3532 | } |
5225 | } |
3533 | |
5226 | |
3534 | /*****************************************************************************/ |
5227 | /*****************************************************************************/ |
3535 | |
5228 | |
3536 | #if EV_WALK_ENABLE |
5229 | #if EV_WALK_ENABLE |
|
|
5230 | ecb_cold |
3537 | void |
5231 | void |
3538 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5232 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3539 | { |
5233 | { |
3540 | int i, j; |
5234 | int i, j; |
3541 | ev_watcher_list *wl, *wn; |
5235 | ev_watcher_list *wl, *wn; |
3542 | |
5236 | |
3543 | if (types & (EV_IO | EV_EMBED)) |
5237 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3586 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5280 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3587 | #endif |
5281 | #endif |
3588 | |
5282 | |
3589 | #if EV_IDLE_ENABLE |
5283 | #if EV_IDLE_ENABLE |
3590 | if (types & EV_IDLE) |
5284 | if (types & EV_IDLE) |
3591 | for (j = NUMPRI; i--; ) |
5285 | for (j = NUMPRI; j--; ) |
3592 | for (i = idlecnt [j]; i--; ) |
5286 | for (i = idlecnt [j]; i--; ) |
3593 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5287 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3594 | #endif |
5288 | #endif |
3595 | |
5289 | |
3596 | #if EV_FORK_ENABLE |
5290 | #if EV_FORK_ENABLE |
… | |
… | |
3604 | if (types & EV_ASYNC) |
5298 | if (types & EV_ASYNC) |
3605 | for (i = asynccnt; i--; ) |
5299 | for (i = asynccnt; i--; ) |
3606 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
5300 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3607 | #endif |
5301 | #endif |
3608 | |
5302 | |
|
|
5303 | #if EV_PREPARE_ENABLE |
3609 | if (types & EV_PREPARE) |
5304 | if (types & EV_PREPARE) |
3610 | for (i = preparecnt; i--; ) |
5305 | for (i = preparecnt; i--; ) |
3611 | #if EV_EMBED_ENABLE |
5306 | # if EV_EMBED_ENABLE |
3612 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
5307 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3613 | #endif |
5308 | # endif |
3614 | cb (EV_A_ EV_PREPARE, prepares [i]); |
5309 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
5310 | #endif |
3615 | |
5311 | |
|
|
5312 | #if EV_CHECK_ENABLE |
3616 | if (types & EV_CHECK) |
5313 | if (types & EV_CHECK) |
3617 | for (i = checkcnt; i--; ) |
5314 | for (i = checkcnt; i--; ) |
3618 | cb (EV_A_ EV_CHECK, checks [i]); |
5315 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
5316 | #endif |
3619 | |
5317 | |
|
|
5318 | #if EV_SIGNAL_ENABLE |
3620 | if (types & EV_SIGNAL) |
5319 | if (types & EV_SIGNAL) |
3621 | for (i = 0; i < EV_NSIG - 1; ++i) |
5320 | for (i = 0; i < EV_NSIG - 1; ++i) |
3622 | for (wl = signals [i].head; wl; ) |
5321 | for (wl = signals [i].head; wl; ) |
3623 | { |
5322 | { |
3624 | wn = wl->next; |
5323 | wn = wl->next; |
3625 | cb (EV_A_ EV_SIGNAL, wl); |
5324 | cb (EV_A_ EV_SIGNAL, wl); |
3626 | wl = wn; |
5325 | wl = wn; |
3627 | } |
5326 | } |
|
|
5327 | #endif |
3628 | |
5328 | |
|
|
5329 | #if EV_CHILD_ENABLE |
3629 | if (types & EV_CHILD) |
5330 | if (types & EV_CHILD) |
3630 | for (i = EV_PID_HASHSIZE; i--; ) |
5331 | for (i = (EV_PID_HASHSIZE); i--; ) |
3631 | for (wl = childs [i]; wl; ) |
5332 | for (wl = childs [i]; wl; ) |
3632 | { |
5333 | { |
3633 | wn = wl->next; |
5334 | wn = wl->next; |
3634 | cb (EV_A_ EV_CHILD, wl); |
5335 | cb (EV_A_ EV_CHILD, wl); |
3635 | wl = wn; |
5336 | wl = wn; |
3636 | } |
5337 | } |
|
|
5338 | #endif |
3637 | /* EV_STAT 0x00001000 /* stat data changed */ |
5339 | /* EV_STAT 0x00001000 /* stat data changed */ |
3638 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
5340 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3639 | } |
5341 | } |
3640 | #endif |
5342 | #endif |
3641 | |
5343 | |
3642 | #if EV_MULTIPLICITY |
5344 | #if EV_MULTIPLICITY |
3643 | #include "ev_wrap.h" |
5345 | #include "ev_wrap.h" |
3644 | #endif |
5346 | #endif |
3645 | |
5347 | |
3646 | #ifdef __cplusplus |
|
|
3647 | } |
|
|
3648 | #endif |
|
|
3649 | |
|
|