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 | |
122 | # ifndef EV_USE_PORT |
129 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
130 | # ifndef EV_USE_KQUEUE |
124 | # define EV_USE_PORT 1 |
131 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
125 | # else |
|
|
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_KQUEUE |
|
|
135 | # define EV_USE_KQUEUE 0 |
128 | # endif |
136 | # endif |
129 | |
137 | |
|
|
138 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
130 | # ifndef EV_USE_INOTIFY |
139 | # ifndef EV_USE_PORT |
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
140 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
132 | # define EV_USE_INOTIFY 1 |
|
|
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
|
|
135 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_PORT |
|
|
144 | # define EV_USE_PORT 0 |
136 | # endif |
145 | # endif |
137 | |
146 | |
|
|
147 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # ifndef EV_USE_SIGNALFD |
148 | # ifndef EV_USE_INOTIFY |
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
149 | # define EV_USE_INOTIFY EV_FEATURE_OS |
140 | # define EV_USE_SIGNALFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_INOTIFY |
|
|
153 | # define EV_USE_INOTIFY 0 |
144 | # endif |
154 | # endif |
145 | |
155 | |
|
|
156 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
146 | # ifndef EV_USE_EVENTFD |
157 | # ifndef EV_USE_SIGNALFD |
147 | # if HAVE_EVENTFD |
158 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
148 | # define EV_USE_EVENTFD 1 |
|
|
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_SIGNALFD |
|
|
162 | # define EV_USE_SIGNALFD 0 |
|
|
163 | # endif |
|
|
164 | |
|
|
165 | # if HAVE_EVENTFD |
|
|
166 | # ifndef EV_USE_EVENTFD |
|
|
167 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
168 | # endif |
|
|
169 | # else |
|
|
170 | # undef EV_USE_EVENTFD |
|
|
171 | # define EV_USE_EVENTFD 0 |
152 | # endif |
172 | # endif |
153 | |
173 | |
154 | #endif |
174 | #endif |
155 | |
175 | |
156 | #include <math.h> |
176 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
177 | * a limit of 1024 into their select. Where people have brains, |
|
|
178 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
179 | * ordered to have a vacuum, or they do anything for money. |
|
|
180 | * This might help. Or not. |
|
|
181 | * Note that this must be defined early, as other include files |
|
|
182 | * will rely on this define as well. |
|
|
183 | */ |
|
|
184 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
185 | |
157 | #include <stdlib.h> |
186 | #include <stdlib.h> |
|
|
187 | #include <string.h> |
158 | #include <fcntl.h> |
188 | #include <fcntl.h> |
159 | #include <stddef.h> |
189 | #include <stddef.h> |
160 | |
190 | |
161 | #include <stdio.h> |
191 | #include <stdio.h> |
162 | |
192 | |
163 | #include <assert.h> |
193 | #include <assert.h> |
164 | #include <errno.h> |
194 | #include <errno.h> |
165 | #include <sys/types.h> |
195 | #include <sys/types.h> |
166 | #include <time.h> |
196 | #include <time.h> |
|
|
197 | #include <limits.h> |
167 | |
198 | |
168 | #include <signal.h> |
199 | #include <signal.h> |
169 | |
200 | |
170 | #ifdef EV_H |
201 | #ifdef EV_H |
171 | # include EV_H |
202 | # include EV_H |
172 | #else |
203 | #else |
173 | # include "ev.h" |
204 | # include "ev.h" |
|
|
205 | #endif |
|
|
206 | |
|
|
207 | #if EV_NO_THREADS |
|
|
208 | # undef EV_NO_SMP |
|
|
209 | # define EV_NO_SMP 1 |
|
|
210 | # undef ECB_NO_THREADS |
|
|
211 | # define ECB_NO_THREADS 1 |
|
|
212 | #endif |
|
|
213 | #if EV_NO_SMP |
|
|
214 | # undef EV_NO_SMP |
|
|
215 | # define ECB_NO_SMP 1 |
174 | #endif |
216 | #endif |
175 | |
217 | |
176 | #ifndef _WIN32 |
218 | #ifndef _WIN32 |
177 | # include <sys/time.h> |
219 | # include <sys/time.h> |
178 | # include <sys/wait.h> |
220 | # include <sys/wait.h> |
179 | # include <unistd.h> |
221 | # include <unistd.h> |
180 | #else |
222 | #else |
181 | # include <io.h> |
223 | # include <io.h> |
182 | # define WIN32_LEAN_AND_MEAN |
224 | # define WIN32_LEAN_AND_MEAN |
|
|
225 | # include <winsock2.h> |
183 | # include <windows.h> |
226 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
227 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
228 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
229 | # endif |
|
|
230 | # undef EV_AVOID_STDIO |
187 | #endif |
231 | #endif |
188 | |
232 | |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
233 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | |
234 | |
191 | /* try to deduce the maximum number of signals on this platform */ |
235 | /* try to deduce the maximum number of signals on this platform */ |
192 | #if defined (EV_NSIG) |
236 | #if defined EV_NSIG |
193 | /* use what's provided */ |
237 | /* use what's provided */ |
194 | #elif defined (NSIG) |
238 | #elif defined NSIG |
195 | # define EV_NSIG (NSIG) |
239 | # define EV_NSIG (NSIG) |
196 | #elif defined(_NSIG) |
240 | #elif defined _NSIG |
197 | # define EV_NSIG (_NSIG) |
241 | # define EV_NSIG (_NSIG) |
198 | #elif defined (SIGMAX) |
242 | #elif defined SIGMAX |
199 | # define EV_NSIG (SIGMAX+1) |
243 | # define EV_NSIG (SIGMAX+1) |
200 | #elif defined (SIG_MAX) |
244 | #elif defined SIG_MAX |
201 | # define EV_NSIG (SIG_MAX+1) |
245 | # define EV_NSIG (SIG_MAX+1) |
202 | #elif defined (_SIG_MAX) |
246 | #elif defined _SIG_MAX |
203 | # define EV_NSIG (_SIG_MAX+1) |
247 | # define EV_NSIG (_SIG_MAX+1) |
204 | #elif defined (MAXSIG) |
248 | #elif defined MAXSIG |
205 | # define EV_NSIG (MAXSIG+1) |
249 | # define EV_NSIG (MAXSIG+1) |
206 | #elif defined (MAX_SIG) |
250 | #elif defined MAX_SIG |
207 | # define EV_NSIG (MAX_SIG+1) |
251 | # define EV_NSIG (MAX_SIG+1) |
208 | #elif defined (SIGARRAYSIZE) |
252 | #elif defined SIGARRAYSIZE |
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
253 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
210 | #elif defined (_sys_nsig) |
254 | #elif defined _sys_nsig |
211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
255 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
212 | #else |
256 | #else |
213 | # error "unable to find value for NSIG, please report" |
257 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
214 | /* to make it compile regardless, just remove the above line */ |
258 | #endif |
215 | # define EV_NSIG 65 |
259 | |
|
|
260 | #ifndef EV_USE_FLOOR |
|
|
261 | # define EV_USE_FLOOR 0 |
216 | #endif |
262 | #endif |
217 | |
263 | |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
264 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | # if __linux && __GLIBC__ >= 2 |
265 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
266 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
221 | # else |
267 | # else |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
268 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # endif |
269 | # endif |
224 | #endif |
270 | #endif |
225 | |
271 | |
|
|
272 | #if !(_POSIX_TIMERS > 0) |
|
|
273 | # ifndef EV_USE_MONOTONIC |
|
|
274 | # define EV_USE_MONOTONIC 0 |
|
|
275 | # endif |
|
|
276 | # ifndef EV_USE_REALTIME |
|
|
277 | # define EV_USE_REALTIME 0 |
|
|
278 | # endif |
|
|
279 | #endif |
|
|
280 | |
226 | #ifndef EV_USE_MONOTONIC |
281 | #ifndef EV_USE_MONOTONIC |
227 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
282 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
228 | # define EV_USE_MONOTONIC 1 |
283 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
229 | # else |
284 | # else |
230 | # define EV_USE_MONOTONIC 0 |
285 | # define EV_USE_MONOTONIC 0 |
231 | # endif |
286 | # endif |
232 | #endif |
287 | #endif |
233 | |
288 | |
… | |
… | |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
290 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
236 | #endif |
291 | #endif |
237 | |
292 | |
238 | #ifndef EV_USE_NANOSLEEP |
293 | #ifndef EV_USE_NANOSLEEP |
239 | # if _POSIX_C_SOURCE >= 199309L |
294 | # if _POSIX_C_SOURCE >= 199309L |
240 | # define EV_USE_NANOSLEEP 1 |
295 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
241 | # else |
296 | # else |
242 | # define EV_USE_NANOSLEEP 0 |
297 | # define EV_USE_NANOSLEEP 0 |
243 | # endif |
298 | # endif |
244 | #endif |
299 | #endif |
245 | |
300 | |
246 | #ifndef EV_USE_SELECT |
301 | #ifndef EV_USE_SELECT |
247 | # define EV_USE_SELECT 1 |
302 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
248 | #endif |
303 | #endif |
249 | |
304 | |
250 | #ifndef EV_USE_POLL |
305 | #ifndef EV_USE_POLL |
251 | # ifdef _WIN32 |
306 | # ifdef _WIN32 |
252 | # define EV_USE_POLL 0 |
307 | # define EV_USE_POLL 0 |
253 | # else |
308 | # else |
254 | # define EV_USE_POLL 1 |
309 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
255 | # endif |
310 | # endif |
256 | #endif |
311 | #endif |
257 | |
312 | |
258 | #ifndef EV_USE_EPOLL |
313 | #ifndef EV_USE_EPOLL |
259 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
260 | # define EV_USE_EPOLL 1 |
315 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
261 | # else |
316 | # else |
262 | # define EV_USE_EPOLL 0 |
317 | # define EV_USE_EPOLL 0 |
263 | # endif |
318 | # endif |
264 | #endif |
319 | #endif |
265 | |
320 | |
… | |
… | |
269 | |
324 | |
270 | #ifndef EV_USE_PORT |
325 | #ifndef EV_USE_PORT |
271 | # define EV_USE_PORT 0 |
326 | # define EV_USE_PORT 0 |
272 | #endif |
327 | #endif |
273 | |
328 | |
|
|
329 | #ifndef EV_USE_LINUXAIO |
|
|
330 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
331 | # define EV_USE_LINUXAIO 1 |
|
|
332 | # else |
|
|
333 | # define EV_USE_LINUXAIO 0 |
|
|
334 | # endif |
|
|
335 | #endif |
|
|
336 | |
274 | #ifndef EV_USE_INOTIFY |
337 | #ifndef EV_USE_INOTIFY |
275 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
338 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
276 | # define EV_USE_INOTIFY 1 |
339 | # define EV_USE_INOTIFY EV_FEATURE_OS |
277 | # else |
340 | # else |
278 | # define EV_USE_INOTIFY 0 |
341 | # define EV_USE_INOTIFY 0 |
279 | # endif |
342 | # endif |
280 | #endif |
343 | #endif |
281 | |
344 | |
282 | #ifndef EV_PID_HASHSIZE |
345 | #ifndef EV_PID_HASHSIZE |
283 | # if EV_MINIMAL |
346 | # 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 |
347 | #endif |
289 | |
348 | |
290 | #ifndef EV_INOTIFY_HASHSIZE |
349 | #ifndef EV_INOTIFY_HASHSIZE |
291 | # if EV_MINIMAL |
350 | # 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 |
351 | #endif |
297 | |
352 | |
298 | #ifndef EV_USE_EVENTFD |
353 | #ifndef EV_USE_EVENTFD |
299 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
354 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
300 | # define EV_USE_EVENTFD 1 |
355 | # define EV_USE_EVENTFD EV_FEATURE_OS |
301 | # else |
356 | # else |
302 | # define EV_USE_EVENTFD 0 |
357 | # define EV_USE_EVENTFD 0 |
303 | # endif |
358 | # endif |
304 | #endif |
359 | #endif |
305 | |
360 | |
306 | #ifndef EV_USE_SIGNALFD |
361 | #ifndef EV_USE_SIGNALFD |
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
362 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
308 | # define EV_USE_SIGNALFD 1 |
363 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
309 | # else |
364 | # else |
310 | # define EV_USE_SIGNALFD 0 |
365 | # define EV_USE_SIGNALFD 0 |
311 | # endif |
366 | # endif |
312 | #endif |
367 | #endif |
313 | |
368 | |
… | |
… | |
316 | # define EV_USE_4HEAP 1 |
371 | # define EV_USE_4HEAP 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
372 | # define EV_HEAP_CACHE_AT 1 |
318 | #endif |
373 | #endif |
319 | |
374 | |
320 | #ifndef EV_VERIFY |
375 | #ifndef EV_VERIFY |
321 | # define EV_VERIFY !EV_MINIMAL |
376 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
322 | #endif |
377 | #endif |
323 | |
378 | |
324 | #ifndef EV_USE_4HEAP |
379 | #ifndef EV_USE_4HEAP |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
380 | # define EV_USE_4HEAP EV_FEATURE_DATA |
326 | #endif |
381 | #endif |
327 | |
382 | |
328 | #ifndef EV_HEAP_CACHE_AT |
383 | #ifndef EV_HEAP_CACHE_AT |
329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
384 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
385 | #endif |
|
|
386 | |
|
|
387 | #ifdef __ANDROID__ |
|
|
388 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
389 | # undef EV_USE_SELECT |
|
|
390 | # define EV_USE_SELECT 0 |
|
|
391 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
392 | # undef EV_USE_CLOCK_SYSCALL |
|
|
393 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
397 | #ifdef _AIX |
|
|
398 | /* AIX has a completely broken poll.h header */ |
|
|
399 | # undef EV_USE_POLL |
|
|
400 | # define EV_USE_POLL 0 |
330 | #endif |
401 | #endif |
331 | |
402 | |
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
403 | /* 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. */ |
404 | /* which makes programs even slower. might work on other unices, too. */ |
334 | #if EV_USE_CLOCK_SYSCALL |
405 | #if EV_USE_CLOCK_SYSCALL |
335 | # include <syscall.h> |
406 | # include <sys/syscall.h> |
336 | # ifdef SYS_clock_gettime |
407 | # ifdef SYS_clock_gettime |
337 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
408 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
338 | # undef EV_USE_MONOTONIC |
409 | # undef EV_USE_MONOTONIC |
339 | # define EV_USE_MONOTONIC 1 |
410 | # define EV_USE_MONOTONIC 1 |
340 | # else |
411 | # else |
… | |
… | |
359 | # undef EV_USE_INOTIFY |
430 | # undef EV_USE_INOTIFY |
360 | # define EV_USE_INOTIFY 0 |
431 | # define EV_USE_INOTIFY 0 |
361 | #endif |
432 | #endif |
362 | |
433 | |
363 | #if !EV_USE_NANOSLEEP |
434 | #if !EV_USE_NANOSLEEP |
364 | # ifndef _WIN32 |
435 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
436 | # if !defined _WIN32 && !defined __hpux |
365 | # include <sys/select.h> |
437 | # include <sys/select.h> |
366 | # endif |
438 | # endif |
367 | #endif |
439 | #endif |
368 | |
440 | |
|
|
441 | #if EV_USE_LINUXAIO |
|
|
442 | # include <sys/syscall.h> |
|
|
443 | # if !SYS_io_getevents || !EV_USE_EPOLL |
|
|
444 | # undef EV_USE_LINUXAIO |
|
|
445 | # define EV_USE_LINUXAIO 0 |
|
|
446 | # endif |
|
|
447 | #endif |
|
|
448 | |
369 | #if EV_USE_INOTIFY |
449 | #if EV_USE_INOTIFY |
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
450 | # include <sys/statfs.h> |
372 | # include <sys/inotify.h> |
451 | # include <sys/inotify.h> |
373 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
452 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
374 | # ifndef IN_DONT_FOLLOW |
453 | # ifndef IN_DONT_FOLLOW |
375 | # undef EV_USE_INOTIFY |
454 | # undef EV_USE_INOTIFY |
376 | # define EV_USE_INOTIFY 0 |
455 | # define EV_USE_INOTIFY 0 |
377 | # endif |
456 | # endif |
378 | #endif |
|
|
379 | |
|
|
380 | #if EV_SELECT_IS_WINSOCKET |
|
|
381 | # include <winsock.h> |
|
|
382 | #endif |
457 | #endif |
383 | |
458 | |
384 | #if EV_USE_EVENTFD |
459 | #if EV_USE_EVENTFD |
385 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
460 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
386 | # include <stdint.h> |
461 | # include <stdint.h> |
… | |
… | |
392 | # define EFD_CLOEXEC O_CLOEXEC |
467 | # define EFD_CLOEXEC O_CLOEXEC |
393 | # else |
468 | # else |
394 | # define EFD_CLOEXEC 02000000 |
469 | # define EFD_CLOEXEC 02000000 |
395 | # endif |
470 | # endif |
396 | # endif |
471 | # endif |
397 | # ifdef __cplusplus |
472 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
398 | extern "C" { |
473 | #endif |
|
|
474 | |
|
|
475 | #if EV_USE_SIGNALFD |
|
|
476 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
477 | # include <stdint.h> |
|
|
478 | # ifndef SFD_NONBLOCK |
|
|
479 | # define SFD_NONBLOCK O_NONBLOCK |
399 | # endif |
480 | # endif |
400 | int eventfd (unsigned int initval, int flags); |
481 | # ifndef SFD_CLOEXEC |
401 | # ifdef __cplusplus |
482 | # ifdef O_CLOEXEC |
402 | } |
483 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
484 | # else |
|
|
485 | # define SFD_CLOEXEC 02000000 |
|
|
486 | # endif |
403 | # endif |
487 | # endif |
404 | #endif |
488 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
405 | |
489 | |
406 | #if EV_USE_SIGNALFD |
490 | struct signalfd_siginfo |
407 | # include <sys/signalfd.h> |
491 | { |
|
|
492 | uint32_t ssi_signo; |
|
|
493 | char pad[128 - sizeof (uint32_t)]; |
|
|
494 | }; |
408 | #endif |
495 | #endif |
409 | |
496 | |
410 | /**/ |
497 | /**/ |
411 | |
498 | |
412 | #if EV_VERIFY >= 3 |
499 | #if EV_VERIFY >= 3 |
413 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
500 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
414 | #else |
501 | #else |
415 | # define EV_FREQUENT_CHECK do { } while (0) |
502 | # define EV_FREQUENT_CHECK do { } while (0) |
416 | #endif |
503 | #endif |
417 | |
504 | |
418 | /* |
505 | /* |
419 | * This is used to avoid floating point rounding problems. |
506 | * This is used to work around floating point rounding problems. |
420 | * It is added to ev_rt_now when scheduling periodics |
|
|
421 | * to ensure progress, time-wise, even when rounding |
|
|
422 | * errors are against us. |
|
|
423 | * This value is good at least till the year 4000. |
507 | * This value is good at least till the year 4000. |
424 | * Better solutions welcome. |
|
|
425 | */ |
508 | */ |
426 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
509 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
510 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
427 | |
511 | |
428 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
512 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
429 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
513 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
430 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
431 | |
514 | |
|
|
515 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
516 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
517 | |
|
|
518 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
519 | /* ECB.H BEGIN */ |
|
|
520 | /* |
|
|
521 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
522 | * |
|
|
523 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
524 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
525 | * All rights reserved. |
|
|
526 | * |
|
|
527 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
528 | * tion, are permitted provided that the following conditions are met: |
|
|
529 | * |
|
|
530 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
531 | * this list of conditions and the following disclaimer. |
|
|
532 | * |
|
|
533 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
534 | * notice, this list of conditions and the following disclaimer in the |
|
|
535 | * documentation and/or other materials provided with the distribution. |
|
|
536 | * |
|
|
537 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
538 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
539 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
540 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
541 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
542 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
543 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
544 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
545 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
546 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
547 | * |
|
|
548 | * Alternatively, the contents of this file may be used under the terms of |
|
|
549 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
550 | * in which case the provisions of the GPL are applicable instead of |
|
|
551 | * the above. If you wish to allow the use of your version of this file |
|
|
552 | * only under the terms of the GPL and not to allow others to use your |
|
|
553 | * version of this file under the BSD license, indicate your decision |
|
|
554 | * by deleting the provisions above and replace them with the notice |
|
|
555 | * and other provisions required by the GPL. If you do not delete the |
|
|
556 | * provisions above, a recipient may use your version of this file under |
|
|
557 | * either the BSD or the GPL. |
|
|
558 | */ |
|
|
559 | |
|
|
560 | #ifndef ECB_H |
|
|
561 | #define ECB_H |
|
|
562 | |
|
|
563 | /* 16 bits major, 16 bits minor */ |
|
|
564 | #define ECB_VERSION 0x00010005 |
|
|
565 | |
|
|
566 | #ifdef _WIN32 |
|
|
567 | typedef signed char int8_t; |
|
|
568 | typedef unsigned char uint8_t; |
|
|
569 | typedef signed short int16_t; |
|
|
570 | typedef unsigned short uint16_t; |
|
|
571 | typedef signed int int32_t; |
|
|
572 | typedef unsigned int uint32_t; |
432 | #if __GNUC__ >= 4 |
573 | #if __GNUC__ |
|
|
574 | typedef signed long long int64_t; |
|
|
575 | typedef unsigned long long uint64_t; |
|
|
576 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
577 | typedef signed __int64 int64_t; |
|
|
578 | typedef unsigned __int64 uint64_t; |
|
|
579 | #endif |
|
|
580 | #ifdef _WIN64 |
|
|
581 | #define ECB_PTRSIZE 8 |
|
|
582 | typedef uint64_t uintptr_t; |
|
|
583 | typedef int64_t intptr_t; |
|
|
584 | #else |
|
|
585 | #define ECB_PTRSIZE 4 |
|
|
586 | typedef uint32_t uintptr_t; |
|
|
587 | typedef int32_t intptr_t; |
|
|
588 | #endif |
|
|
589 | #else |
|
|
590 | #include <inttypes.h> |
|
|
591 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
|
|
592 | #define ECB_PTRSIZE 8 |
|
|
593 | #else |
|
|
594 | #define ECB_PTRSIZE 4 |
|
|
595 | #endif |
|
|
596 | #endif |
|
|
597 | |
|
|
598 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
599 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
600 | |
|
|
601 | /* work around x32 idiocy by defining proper macros */ |
|
|
602 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
603 | #if _ILP32 |
|
|
604 | #define ECB_AMD64_X32 1 |
|
|
605 | #else |
|
|
606 | #define ECB_AMD64 1 |
|
|
607 | #endif |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
611 | * what their idiot authors think are the "more important" extensions, |
|
|
612 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
613 | * or so. |
|
|
614 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
615 | * an issue with that they should have done it right in the first place. |
|
|
616 | */ |
|
|
617 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
618 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
619 | #else |
|
|
620 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
621 | #endif |
|
|
622 | |
|
|
623 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
624 | |
|
|
625 | #if __clang__ && defined __has_builtin |
|
|
626 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
627 | #else |
|
|
628 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
629 | #endif |
|
|
630 | |
|
|
631 | #if __clang__ && defined __has_extension |
|
|
632 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
633 | #else |
|
|
634 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
635 | #endif |
|
|
636 | |
|
|
637 | #define ECB_CPP (__cplusplus+0) |
|
|
638 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
639 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
640 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
641 | |
|
|
642 | #if ECB_CPP |
|
|
643 | #define ECB_C 0 |
|
|
644 | #define ECB_STDC_VERSION 0 |
|
|
645 | #else |
|
|
646 | #define ECB_C 1 |
|
|
647 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
648 | #endif |
|
|
649 | |
|
|
650 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
651 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
652 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
653 | |
|
|
654 | #if ECB_CPP |
|
|
655 | #define ECB_EXTERN_C extern "C" |
|
|
656 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
657 | #define ECB_EXTERN_C_END } |
|
|
658 | #else |
|
|
659 | #define ECB_EXTERN_C extern |
|
|
660 | #define ECB_EXTERN_C_BEG |
|
|
661 | #define ECB_EXTERN_C_END |
|
|
662 | #endif |
|
|
663 | |
|
|
664 | /*****************************************************************************/ |
|
|
665 | |
|
|
666 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
667 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
668 | |
|
|
669 | #if ECB_NO_THREADS |
|
|
670 | #define ECB_NO_SMP 1 |
|
|
671 | #endif |
|
|
672 | |
|
|
673 | #if ECB_NO_SMP |
|
|
674 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
675 | #endif |
|
|
676 | |
|
|
677 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
678 | #if __xlC__ && ECB_CPP |
|
|
679 | #include <builtins.h> |
|
|
680 | #endif |
|
|
681 | |
|
|
682 | #if 1400 <= _MSC_VER |
|
|
683 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | #ifndef ECB_MEMORY_FENCE |
|
|
687 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
688 | #if __i386 || __i386__ |
|
|
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
690 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
691 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
692 | #elif ECB_GCC_AMD64 |
|
|
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
694 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
695 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
696 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
698 | #elif defined __ARM_ARCH_2__ \ |
|
|
699 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
700 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
701 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
702 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
703 | || defined __ARM_ARCH_5TEJ__ |
|
|
704 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
705 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
706 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
707 | || defined __ARM_ARCH_6T2__ |
|
|
708 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
709 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
710 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
711 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
712 | #elif __aarch64__ |
|
|
713 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
714 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
715 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
716 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
717 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
718 | #elif defined __s390__ || defined __s390x__ |
|
|
719 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
720 | #elif defined __mips__ |
|
|
721 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
722 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
723 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
724 | #elif defined __alpha__ |
|
|
725 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
726 | #elif defined __hppa__ |
|
|
727 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
728 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
729 | #elif defined __ia64__ |
|
|
730 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
731 | #elif defined __m68k__ |
|
|
732 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
733 | #elif defined __m88k__ |
|
|
734 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
735 | #elif defined __sh__ |
|
|
736 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
737 | #endif |
|
|
738 | #endif |
|
|
739 | #endif |
|
|
740 | |
|
|
741 | #ifndef ECB_MEMORY_FENCE |
|
|
742 | #if ECB_GCC_VERSION(4,7) |
|
|
743 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
744 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
745 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
746 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
747 | |
|
|
748 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
749 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
750 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
751 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
752 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
753 | |
|
|
754 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
755 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
756 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
757 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
758 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
759 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
760 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
761 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
762 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
763 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
764 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
765 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
766 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
767 | #elif defined _WIN32 |
|
|
768 | #include <WinNT.h> |
|
|
769 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
770 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
771 | #include <mbarrier.h> |
|
|
772 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
773 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
774 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
775 | #elif __xlC__ |
|
|
776 | #define ECB_MEMORY_FENCE __sync () |
|
|
777 | #endif |
|
|
778 | #endif |
|
|
779 | |
|
|
780 | #ifndef ECB_MEMORY_FENCE |
|
|
781 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
782 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
783 | /* not just C11 atomics and atomic accesses */ |
|
|
784 | #include <stdatomic.h> |
|
|
785 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
786 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
787 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
788 | /* for most usages, or gcc and clang have a bug */ |
|
|
789 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
790 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
791 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
792 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
793 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
794 | #endif |
|
|
795 | #endif |
|
|
796 | |
|
|
797 | #ifndef ECB_MEMORY_FENCE |
|
|
798 | #if !ECB_AVOID_PTHREADS |
|
|
799 | /* |
|
|
800 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
801 | * or failure to find pthread.h, then you should implement |
|
|
802 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
803 | * OR provide pthread.h and link against the posix thread library |
|
|
804 | * of your system. |
|
|
805 | */ |
|
|
806 | #include <pthread.h> |
|
|
807 | #define ECB_NEEDS_PTHREADS 1 |
|
|
808 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
809 | |
|
|
810 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
811 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
812 | #endif |
|
|
813 | #endif |
|
|
814 | |
|
|
815 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
816 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
817 | #endif |
|
|
818 | |
|
|
819 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
820 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
821 | #endif |
|
|
822 | |
|
|
823 | /*****************************************************************************/ |
|
|
824 | |
|
|
825 | #if ECB_CPP |
|
|
826 | #define ecb_inline static inline |
|
|
827 | #elif ECB_GCC_VERSION(2,5) |
|
|
828 | #define ecb_inline static __inline__ |
|
|
829 | #elif ECB_C99 |
|
|
830 | #define ecb_inline static inline |
|
|
831 | #else |
|
|
832 | #define ecb_inline static |
|
|
833 | #endif |
|
|
834 | |
|
|
835 | #if ECB_GCC_VERSION(3,3) |
|
|
836 | #define ecb_restrict __restrict__ |
|
|
837 | #elif ECB_C99 |
|
|
838 | #define ecb_restrict restrict |
|
|
839 | #else |
|
|
840 | #define ecb_restrict |
|
|
841 | #endif |
|
|
842 | |
|
|
843 | typedef int ecb_bool; |
|
|
844 | |
|
|
845 | #define ECB_CONCAT_(a, b) a ## b |
|
|
846 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
847 | #define ECB_STRINGIFY_(a) # a |
|
|
848 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
849 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
850 | |
|
|
851 | #define ecb_function_ ecb_inline |
|
|
852 | |
|
|
853 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
854 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
855 | #else |
|
|
856 | #define ecb_attribute(attrlist) |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
860 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
861 | #else |
|
|
862 | /* possible C11 impl for integral types |
|
|
863 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
864 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
865 | |
|
|
866 | #define ecb_is_constant(expr) 0 |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
433 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
870 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
434 | # define noinline __attribute__ ((noinline)) |
|
|
435 | #else |
871 | #else |
436 | # define expect(expr,value) (expr) |
872 | #define ecb_expect(expr,value) (expr) |
437 | # define noinline |
|
|
438 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
439 | # define inline |
|
|
440 | # endif |
873 | #endif |
441 | #endif |
|
|
442 | |
874 | |
|
|
875 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
876 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
877 | #else |
|
|
878 | #define ecb_prefetch(addr,rw,locality) |
|
|
879 | #endif |
|
|
880 | |
|
|
881 | /* no emulation for ecb_decltype */ |
|
|
882 | #if ECB_CPP11 |
|
|
883 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
884 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
885 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
886 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
887 | #define ecb_decltype(x) __typeof__ (x) |
|
|
888 | #endif |
|
|
889 | |
|
|
890 | #if _MSC_VER >= 1300 |
|
|
891 | #define ecb_deprecated __declspec (deprecated) |
|
|
892 | #else |
|
|
893 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
894 | #endif |
|
|
895 | |
|
|
896 | #if _MSC_VER >= 1500 |
|
|
897 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
898 | #elif ECB_GCC_VERSION(4,5) |
|
|
899 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
900 | #else |
|
|
901 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
902 | #endif |
|
|
903 | |
|
|
904 | #if _MSC_VER >= 1400 |
|
|
905 | #define ecb_noinline __declspec (noinline) |
|
|
906 | #else |
|
|
907 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
908 | #endif |
|
|
909 | |
|
|
910 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
911 | #define ecb_const ecb_attribute ((__const__)) |
|
|
912 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
913 | |
|
|
914 | #if ECB_C11 || __IBMC_NORETURN |
|
|
915 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
916 | #define ecb_noreturn _Noreturn |
|
|
917 | #elif ECB_CPP11 |
|
|
918 | #define ecb_noreturn [[noreturn]] |
|
|
919 | #elif _MSC_VER >= 1200 |
|
|
920 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
921 | #define ecb_noreturn __declspec (noreturn) |
|
|
922 | #else |
|
|
923 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
924 | #endif |
|
|
925 | |
|
|
926 | #if ECB_GCC_VERSION(4,3) |
|
|
927 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
928 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
929 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
930 | #else |
|
|
931 | #define ecb_artificial |
|
|
932 | #define ecb_hot |
|
|
933 | #define ecb_cold |
|
|
934 | #endif |
|
|
935 | |
|
|
936 | /* put around conditional expressions if you are very sure that the */ |
|
|
937 | /* expression is mostly true or mostly false. note that these return */ |
|
|
938 | /* booleans, not the expression. */ |
443 | #define expect_false(expr) expect ((expr) != 0, 0) |
939 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
444 | #define expect_true(expr) expect ((expr) != 0, 1) |
940 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
941 | /* for compatibility to the rest of the world */ |
|
|
942 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
943 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
944 | |
|
|
945 | /* count trailing zero bits and count # of one bits */ |
|
|
946 | #if ECB_GCC_VERSION(3,4) \ |
|
|
947 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
948 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
949 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
950 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
951 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
952 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
953 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
954 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
955 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
956 | /* no popcountll */ |
|
|
957 | #else |
|
|
958 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
959 | ecb_function_ ecb_const int |
|
|
960 | ecb_ctz32 (uint32_t x) |
|
|
961 | { |
|
|
962 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
963 | unsigned long r; |
|
|
964 | _BitScanForward (&r, x); |
|
|
965 | return (int)r; |
|
|
966 | #else |
|
|
967 | int r = 0; |
|
|
968 | |
|
|
969 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
970 | |
|
|
971 | #if ECB_branchless_on_i386 |
|
|
972 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
973 | r += !!(x & 0xcccccccc) << 1; |
|
|
974 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
975 | r += !!(x & 0xff00ff00) << 3; |
|
|
976 | r += !!(x & 0xffff0000) << 4; |
|
|
977 | #else |
|
|
978 | if (x & 0xaaaaaaaa) r += 1; |
|
|
979 | if (x & 0xcccccccc) r += 2; |
|
|
980 | if (x & 0xf0f0f0f0) r += 4; |
|
|
981 | if (x & 0xff00ff00) r += 8; |
|
|
982 | if (x & 0xffff0000) r += 16; |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | return r; |
|
|
986 | #endif |
|
|
987 | } |
|
|
988 | |
|
|
989 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
990 | ecb_function_ ecb_const int |
|
|
991 | ecb_ctz64 (uint64_t x) |
|
|
992 | { |
|
|
993 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
994 | unsigned long r; |
|
|
995 | _BitScanForward64 (&r, x); |
|
|
996 | return (int)r; |
|
|
997 | #else |
|
|
998 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
999 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1000 | #endif |
|
|
1001 | } |
|
|
1002 | |
|
|
1003 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1004 | ecb_function_ ecb_const int |
|
|
1005 | ecb_popcount32 (uint32_t x) |
|
|
1006 | { |
|
|
1007 | x -= (x >> 1) & 0x55555555; |
|
|
1008 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1009 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1010 | x *= 0x01010101; |
|
|
1011 | |
|
|
1012 | return x >> 24; |
|
|
1013 | } |
|
|
1014 | |
|
|
1015 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1016 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1017 | { |
|
|
1018 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1019 | unsigned long r; |
|
|
1020 | _BitScanReverse (&r, x); |
|
|
1021 | return (int)r; |
|
|
1022 | #else |
|
|
1023 | int r = 0; |
|
|
1024 | |
|
|
1025 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1026 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1027 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1028 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1029 | if (x >> 1) { r += 1; } |
|
|
1030 | |
|
|
1031 | return r; |
|
|
1032 | #endif |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1036 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1037 | { |
|
|
1038 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1039 | unsigned long r; |
|
|
1040 | _BitScanReverse64 (&r, x); |
|
|
1041 | return (int)r; |
|
|
1042 | #else |
|
|
1043 | int r = 0; |
|
|
1044 | |
|
|
1045 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1046 | |
|
|
1047 | return r + ecb_ld32 (x); |
|
|
1048 | #endif |
|
|
1049 | } |
|
|
1050 | #endif |
|
|
1051 | |
|
|
1052 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1053 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1054 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1055 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1056 | |
|
|
1057 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1058 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1059 | { |
|
|
1060 | return ( (x * 0x0802U & 0x22110U) |
|
|
1061 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1062 | } |
|
|
1063 | |
|
|
1064 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1065 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1066 | { |
|
|
1067 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1068 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1069 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1070 | x = ( x >> 8 ) | ( x << 8); |
|
|
1071 | |
|
|
1072 | return x; |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1076 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1077 | { |
|
|
1078 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1079 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1080 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1081 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1082 | x = ( x >> 16 ) | ( x << 16); |
|
|
1083 | |
|
|
1084 | return x; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1088 | /* so for this version we are lazy */ |
|
|
1089 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1090 | ecb_function_ ecb_const int |
|
|
1091 | ecb_popcount64 (uint64_t x) |
|
|
1092 | { |
|
|
1093 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1094 | } |
|
|
1095 | |
|
|
1096 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1097 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1098 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1099 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1100 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1101 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1102 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1103 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1104 | |
|
|
1105 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1106 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1107 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1108 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1109 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1110 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1111 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1112 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1113 | |
|
|
1114 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1115 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1116 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1117 | #else |
|
|
1118 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1119 | #endif |
|
|
1120 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1121 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1122 | #elif _MSC_VER |
|
|
1123 | #include <stdlib.h> |
|
|
1124 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1125 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1126 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1127 | #else |
|
|
1128 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1129 | ecb_function_ ecb_const uint16_t |
|
|
1130 | ecb_bswap16 (uint16_t x) |
|
|
1131 | { |
|
|
1132 | return ecb_rotl16 (x, 8); |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1136 | ecb_function_ ecb_const uint32_t |
|
|
1137 | ecb_bswap32 (uint32_t x) |
|
|
1138 | { |
|
|
1139 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1140 | } |
|
|
1141 | |
|
|
1142 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1143 | ecb_function_ ecb_const uint64_t |
|
|
1144 | ecb_bswap64 (uint64_t x) |
|
|
1145 | { |
|
|
1146 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1147 | } |
|
|
1148 | #endif |
|
|
1149 | |
|
|
1150 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1151 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1152 | #else |
|
|
1153 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1154 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1155 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1156 | #endif |
|
|
1157 | |
|
|
1158 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1159 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1160 | |
|
|
1161 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1162 | ecb_inline ecb_const uint32_t |
|
|
1163 | ecb_byteorder_helper (void) |
|
|
1164 | { |
|
|
1165 | /* the union code still generates code under pressure in gcc, */ |
|
|
1166 | /* but less than using pointers, and always seems to */ |
|
|
1167 | /* successfully return a constant. */ |
|
|
1168 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1169 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1170 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1171 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1172 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1173 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1174 | return 0x44332211; |
|
|
1175 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1176 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1177 | #define ECB_BIG_ENDIAN 1 |
|
|
1178 | return 0x11223344; |
|
|
1179 | #else |
|
|
1180 | union |
|
|
1181 | { |
|
|
1182 | uint8_t c[4]; |
|
|
1183 | uint32_t u; |
|
|
1184 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1185 | return u.u; |
|
|
1186 | #endif |
|
|
1187 | } |
|
|
1188 | |
|
|
1189 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1190 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1191 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1192 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1193 | |
|
|
1194 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1195 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1196 | #else |
|
|
1197 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1198 | #endif |
|
|
1199 | |
|
|
1200 | #if ECB_CPP |
|
|
1201 | template<typename T> |
|
|
1202 | static inline T ecb_div_rd (T val, T div) |
|
|
1203 | { |
|
|
1204 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1205 | } |
|
|
1206 | template<typename T> |
|
|
1207 | static inline T ecb_div_ru (T val, T div) |
|
|
1208 | { |
|
|
1209 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1210 | } |
|
|
1211 | #else |
|
|
1212 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1213 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1214 | #endif |
|
|
1215 | |
|
|
1216 | #if ecb_cplusplus_does_not_suck |
|
|
1217 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1218 | template<typename T, int N> |
|
|
1219 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1220 | { |
|
|
1221 | return N; |
|
|
1222 | } |
|
|
1223 | #else |
|
|
1224 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1225 | #endif |
|
|
1226 | |
|
|
1227 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1228 | ecb_function_ ecb_const uint32_t |
|
|
1229 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1230 | { |
|
|
1231 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1232 | int e = (x >> 10) & 0x001f; |
|
|
1233 | unsigned int m = x & 0x03ff; |
|
|
1234 | |
|
|
1235 | if (ecb_expect_false (e == 31)) |
|
|
1236 | /* infinity or NaN */ |
|
|
1237 | e = 255 - (127 - 15); |
|
|
1238 | else if (ecb_expect_false (!e)) |
|
|
1239 | { |
|
|
1240 | if (ecb_expect_true (!m)) |
|
|
1241 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1242 | e = 0 - (127 - 15); |
|
|
1243 | else |
|
|
1244 | { |
|
|
1245 | /* subnormal, renormalise */ |
|
|
1246 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1247 | |
|
|
1248 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1249 | e -= s - 1; |
|
|
1250 | } |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1254 | e += 127 - 15; |
|
|
1255 | |
|
|
1256 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1257 | } |
|
|
1258 | |
|
|
1259 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1260 | ecb_function_ ecb_const uint16_t |
|
|
1261 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1262 | { |
|
|
1263 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1264 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1265 | unsigned int m = x & 0x007fffff; |
|
|
1266 | |
|
|
1267 | x &= 0x7fffffff; |
|
|
1268 | |
|
|
1269 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1270 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1271 | { |
|
|
1272 | /* mantissa round-to-even */ |
|
|
1273 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1274 | |
|
|
1275 | /* handle overflow */ |
|
|
1276 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1277 | { |
|
|
1278 | m >>= 1; |
|
|
1279 | e += 1; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1283 | } |
|
|
1284 | |
|
|
1285 | /* handle large numbers and infinity */ |
|
|
1286 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1287 | return s | 0x7c00; |
|
|
1288 | |
|
|
1289 | /* handle zero, subnormals and small numbers */ |
|
|
1290 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1291 | { |
|
|
1292 | /* zero */ |
|
|
1293 | if (ecb_expect_true (!x)) |
|
|
1294 | return s; |
|
|
1295 | |
|
|
1296 | /* handle subnormals */ |
|
|
1297 | |
|
|
1298 | /* too small, will be zero */ |
|
|
1299 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1300 | return s; |
|
|
1301 | |
|
|
1302 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1303 | |
|
|
1304 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1305 | { |
|
|
1306 | unsigned int bits = 14 - e; |
|
|
1307 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1308 | unsigned int even = (m >> bits) & 1; |
|
|
1309 | |
|
|
1310 | /* if this overflows, we will end up with a normalised number */ |
|
|
1311 | m = (m + half + even) >> bits; |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | return s | m; |
|
|
1315 | } |
|
|
1316 | |
|
|
1317 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1318 | m >>= 13; |
|
|
1319 | |
|
|
1320 | return s | 0x7c00 | m | !m; |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | /*******************************************************************************/ |
|
|
1324 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1325 | |
|
|
1326 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1327 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1328 | #if 0 \ |
|
|
1329 | || __i386 || __i386__ \ |
|
|
1330 | || ECB_GCC_AMD64 \ |
|
|
1331 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1332 | || defined __s390__ || defined __s390x__ \ |
|
|
1333 | || defined __mips__ \ |
|
|
1334 | || defined __alpha__ \ |
|
|
1335 | || defined __hppa__ \ |
|
|
1336 | || defined __ia64__ \ |
|
|
1337 | || defined __m68k__ \ |
|
|
1338 | || defined __m88k__ \ |
|
|
1339 | || defined __sh__ \ |
|
|
1340 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1341 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1342 | || defined __aarch64__ |
|
|
1343 | #define ECB_STDFP 1 |
|
|
1344 | #include <string.h> /* for memcpy */ |
|
|
1345 | #else |
|
|
1346 | #define ECB_STDFP 0 |
|
|
1347 | #endif |
|
|
1348 | |
|
|
1349 | #ifndef ECB_NO_LIBM |
|
|
1350 | |
|
|
1351 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1352 | |
|
|
1353 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1354 | #ifdef INFINITY |
|
|
1355 | #define ECB_INFINITY INFINITY |
|
|
1356 | #else |
|
|
1357 | #define ECB_INFINITY HUGE_VAL |
|
|
1358 | #endif |
|
|
1359 | |
|
|
1360 | #ifdef NAN |
|
|
1361 | #define ECB_NAN NAN |
|
|
1362 | #else |
|
|
1363 | #define ECB_NAN ECB_INFINITY |
|
|
1364 | #endif |
|
|
1365 | |
|
|
1366 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1367 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1368 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1369 | #else |
|
|
1370 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1371 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1372 | #endif |
|
|
1373 | |
|
|
1374 | /* convert a float to ieee single/binary32 */ |
|
|
1375 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1376 | ecb_function_ ecb_const uint32_t |
|
|
1377 | ecb_float_to_binary32 (float x) |
|
|
1378 | { |
|
|
1379 | uint32_t r; |
|
|
1380 | |
|
|
1381 | #if ECB_STDFP |
|
|
1382 | memcpy (&r, &x, 4); |
|
|
1383 | #else |
|
|
1384 | /* slow emulation, works for anything but -0 */ |
|
|
1385 | uint32_t m; |
|
|
1386 | int e; |
|
|
1387 | |
|
|
1388 | if (x == 0e0f ) return 0x00000000U; |
|
|
1389 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1390 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1391 | if (x != x ) return 0x7fbfffffU; |
|
|
1392 | |
|
|
1393 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1394 | |
|
|
1395 | r = m & 0x80000000U; |
|
|
1396 | |
|
|
1397 | if (r) |
|
|
1398 | m = -m; |
|
|
1399 | |
|
|
1400 | if (e <= -126) |
|
|
1401 | { |
|
|
1402 | m &= 0xffffffU; |
|
|
1403 | m >>= (-125 - e); |
|
|
1404 | e = -126; |
|
|
1405 | } |
|
|
1406 | |
|
|
1407 | r |= (e + 126) << 23; |
|
|
1408 | r |= m & 0x7fffffU; |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | return r; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | /* converts an ieee single/binary32 to a float */ |
|
|
1415 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1416 | ecb_function_ ecb_const float |
|
|
1417 | ecb_binary32_to_float (uint32_t x) |
|
|
1418 | { |
|
|
1419 | float r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 4); |
|
|
1423 | #else |
|
|
1424 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1425 | int neg = x >> 31; |
|
|
1426 | int e = (x >> 23) & 0xffU; |
|
|
1427 | |
|
|
1428 | x &= 0x7fffffU; |
|
|
1429 | |
|
|
1430 | if (e) |
|
|
1431 | x |= 0x800000U; |
|
|
1432 | else |
|
|
1433 | e = 1; |
|
|
1434 | |
|
|
1435 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1436 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1437 | |
|
|
1438 | r = neg ? -r : r; |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | return r; |
|
|
1442 | } |
|
|
1443 | |
|
|
1444 | /* convert a double to ieee double/binary64 */ |
|
|
1445 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1446 | ecb_function_ ecb_const uint64_t |
|
|
1447 | ecb_double_to_binary64 (double x) |
|
|
1448 | { |
|
|
1449 | uint64_t r; |
|
|
1450 | |
|
|
1451 | #if ECB_STDFP |
|
|
1452 | memcpy (&r, &x, 8); |
|
|
1453 | #else |
|
|
1454 | /* slow emulation, works for anything but -0 */ |
|
|
1455 | uint64_t m; |
|
|
1456 | int e; |
|
|
1457 | |
|
|
1458 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1459 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1460 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1461 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1462 | |
|
|
1463 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1464 | |
|
|
1465 | r = m & 0x8000000000000000;; |
|
|
1466 | |
|
|
1467 | if (r) |
|
|
1468 | m = -m; |
|
|
1469 | |
|
|
1470 | if (e <= -1022) |
|
|
1471 | { |
|
|
1472 | m &= 0x1fffffffffffffU; |
|
|
1473 | m >>= (-1021 - e); |
|
|
1474 | e = -1022; |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1478 | r |= m & 0xfffffffffffffU; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* converts an ieee double/binary64 to a double */ |
|
|
1485 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1486 | ecb_function_ ecb_const double |
|
|
1487 | ecb_binary64_to_double (uint64_t x) |
|
|
1488 | { |
|
|
1489 | double r; |
|
|
1490 | |
|
|
1491 | #if ECB_STDFP |
|
|
1492 | memcpy (&r, &x, 8); |
|
|
1493 | #else |
|
|
1494 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1495 | int neg = x >> 63; |
|
|
1496 | int e = (x >> 52) & 0x7ffU; |
|
|
1497 | |
|
|
1498 | x &= 0xfffffffffffffU; |
|
|
1499 | |
|
|
1500 | if (e) |
|
|
1501 | x |= 0x10000000000000U; |
|
|
1502 | else |
|
|
1503 | e = 1; |
|
|
1504 | |
|
|
1505 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1506 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1507 | |
|
|
1508 | r = neg ? -r : r; |
|
|
1509 | #endif |
|
|
1510 | |
|
|
1511 | return r; |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | /* convert a float to ieee half/binary16 */ |
|
|
1515 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1516 | ecb_function_ ecb_const uint16_t |
|
|
1517 | ecb_float_to_binary16 (float x) |
|
|
1518 | { |
|
|
1519 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | /* convert an ieee half/binary16 to float */ |
|
|
1523 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1524 | ecb_function_ ecb_const float |
|
|
1525 | ecb_binary16_to_float (uint16_t x) |
|
|
1526 | { |
|
|
1527 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | #endif |
|
|
1531 | |
|
|
1532 | #endif |
|
|
1533 | |
|
|
1534 | /* ECB.H END */ |
|
|
1535 | |
|
|
1536 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1537 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1538 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1539 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1540 | * libev, in which cases the memory fences become nops. |
|
|
1541 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1542 | * which will then provide the memory fences. |
|
|
1543 | */ |
|
|
1544 | # error "memory fences not defined for your architecture, please report" |
|
|
1545 | #endif |
|
|
1546 | |
|
|
1547 | #ifndef ECB_MEMORY_FENCE |
|
|
1548 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1549 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1550 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1551 | #endif |
|
|
1552 | |
|
|
1553 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1554 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1555 | #define noinline ecb_noinline |
|
|
1556 | |
445 | #define inline_size static inline |
1557 | #define inline_size ecb_inline |
446 | |
1558 | |
447 | #if EV_MINIMAL |
1559 | #if EV_FEATURE_CODE |
448 | # define inline_speed static noinline |
|
|
449 | #else |
|
|
450 | # define inline_speed static inline |
1560 | # define inline_speed ecb_inline |
|
|
1561 | #else |
|
|
1562 | # define inline_speed noinline static |
451 | #endif |
1563 | #endif |
452 | |
1564 | |
453 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1565 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
454 | |
1566 | |
455 | #if EV_MINPRI == EV_MAXPRI |
1567 | #if EV_MINPRI == EV_MAXPRI |
456 | # define ABSPRI(w) (((W)w), 0) |
1568 | # define ABSPRI(w) (((W)w), 0) |
457 | #else |
1569 | #else |
458 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1570 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
459 | #endif |
1571 | #endif |
460 | |
1572 | |
461 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1573 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
462 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
463 | |
1574 | |
464 | typedef ev_watcher *W; |
1575 | typedef ev_watcher *W; |
465 | typedef ev_watcher_list *WL; |
1576 | typedef ev_watcher_list *WL; |
466 | typedef ev_watcher_time *WT; |
1577 | typedef ev_watcher_time *WT; |
467 | |
1578 | |
468 | #define ev_active(w) ((W)(w))->active |
1579 | #define ev_active(w) ((W)(w))->active |
469 | #define ev_at(w) ((WT)(w))->at |
1580 | #define ev_at(w) ((WT)(w))->at |
470 | |
1581 | |
471 | #if EV_USE_REALTIME |
1582 | #if EV_USE_REALTIME |
472 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1583 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
473 | /* giving it a reasonably high chance of working on typical architetcures */ |
1584 | /* giving it a reasonably high chance of working on typical architectures */ |
474 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1585 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
475 | #endif |
1586 | #endif |
476 | |
1587 | |
477 | #if EV_USE_MONOTONIC |
1588 | #if EV_USE_MONOTONIC |
478 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1589 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
480 | |
1591 | |
481 | #ifndef EV_FD_TO_WIN32_HANDLE |
1592 | #ifndef EV_FD_TO_WIN32_HANDLE |
482 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
1593 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
483 | #endif |
1594 | #endif |
484 | #ifndef EV_WIN32_HANDLE_TO_FD |
1595 | #ifndef EV_WIN32_HANDLE_TO_FD |
485 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
1596 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
486 | #endif |
1597 | #endif |
487 | #ifndef EV_WIN32_CLOSE_FD |
1598 | #ifndef EV_WIN32_CLOSE_FD |
488 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
1599 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
489 | #endif |
1600 | #endif |
490 | |
1601 | |
… | |
… | |
492 | # include "ev_win32.c" |
1603 | # include "ev_win32.c" |
493 | #endif |
1604 | #endif |
494 | |
1605 | |
495 | /*****************************************************************************/ |
1606 | /*****************************************************************************/ |
496 | |
1607 | |
|
|
1608 | #if EV_USE_LINUXAIO |
|
|
1609 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1610 | #endif |
|
|
1611 | |
|
|
1612 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1613 | |
|
|
1614 | #if EV_USE_FLOOR |
|
|
1615 | # include <math.h> |
|
|
1616 | # define ev_floor(v) floor (v) |
|
|
1617 | #else |
|
|
1618 | |
|
|
1619 | #include <float.h> |
|
|
1620 | |
|
|
1621 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1622 | noinline |
|
|
1623 | static ev_tstamp |
|
|
1624 | ev_floor (ev_tstamp v) |
|
|
1625 | { |
|
|
1626 | /* the choice of shift factor is not terribly important */ |
|
|
1627 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1628 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1629 | #else |
|
|
1630 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1631 | #endif |
|
|
1632 | |
|
|
1633 | /* argument too large for an unsigned long? */ |
|
|
1634 | if (expect_false (v >= shift)) |
|
|
1635 | { |
|
|
1636 | ev_tstamp f; |
|
|
1637 | |
|
|
1638 | if (v == v - 1.) |
|
|
1639 | return v; /* very large number */ |
|
|
1640 | |
|
|
1641 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1642 | return f + ev_floor (v - f); |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | /* special treatment for negative args? */ |
|
|
1646 | if (expect_false (v < 0.)) |
|
|
1647 | { |
|
|
1648 | ev_tstamp f = -ev_floor (-v); |
|
|
1649 | |
|
|
1650 | return f - (f == v ? 0 : 1); |
|
|
1651 | } |
|
|
1652 | |
|
|
1653 | /* fits into an unsigned long */ |
|
|
1654 | return (unsigned long)v; |
|
|
1655 | } |
|
|
1656 | |
|
|
1657 | #endif |
|
|
1658 | |
|
|
1659 | /*****************************************************************************/ |
|
|
1660 | |
|
|
1661 | #ifdef __linux |
|
|
1662 | # include <sys/utsname.h> |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | noinline ecb_cold |
|
|
1666 | static unsigned int |
|
|
1667 | ev_linux_version (void) |
|
|
1668 | { |
|
|
1669 | #ifdef __linux |
|
|
1670 | unsigned int v = 0; |
|
|
1671 | struct utsname buf; |
|
|
1672 | int i; |
|
|
1673 | char *p = buf.release; |
|
|
1674 | |
|
|
1675 | if (uname (&buf)) |
|
|
1676 | return 0; |
|
|
1677 | |
|
|
1678 | for (i = 3+1; --i; ) |
|
|
1679 | { |
|
|
1680 | unsigned int c = 0; |
|
|
1681 | |
|
|
1682 | for (;;) |
|
|
1683 | { |
|
|
1684 | if (*p >= '0' && *p <= '9') |
|
|
1685 | c = c * 10 + *p++ - '0'; |
|
|
1686 | else |
|
|
1687 | { |
|
|
1688 | p += *p == '.'; |
|
|
1689 | break; |
|
|
1690 | } |
|
|
1691 | } |
|
|
1692 | |
|
|
1693 | v = (v << 8) | c; |
|
|
1694 | } |
|
|
1695 | |
|
|
1696 | return v; |
|
|
1697 | #else |
|
|
1698 | return 0; |
|
|
1699 | #endif |
|
|
1700 | } |
|
|
1701 | |
|
|
1702 | /*****************************************************************************/ |
|
|
1703 | |
|
|
1704 | #if EV_AVOID_STDIO |
|
|
1705 | noinline ecb_cold |
|
|
1706 | static void |
|
|
1707 | ev_printerr (const char *msg) |
|
|
1708 | { |
|
|
1709 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1710 | } |
|
|
1711 | #endif |
|
|
1712 | |
497 | static void (*syserr_cb)(const char *msg); |
1713 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
498 | |
1714 | |
|
|
1715 | ecb_cold |
499 | void |
1716 | void |
500 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1717 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
501 | { |
1718 | { |
502 | syserr_cb = cb; |
1719 | syserr_cb = cb; |
503 | } |
1720 | } |
504 | |
1721 | |
505 | static void noinline |
1722 | noinline ecb_cold |
|
|
1723 | static void |
506 | ev_syserr (const char *msg) |
1724 | ev_syserr (const char *msg) |
507 | { |
1725 | { |
508 | if (!msg) |
1726 | if (!msg) |
509 | msg = "(libev) system error"; |
1727 | msg = "(libev) system error"; |
510 | |
1728 | |
511 | if (syserr_cb) |
1729 | if (syserr_cb) |
512 | syserr_cb (msg); |
1730 | syserr_cb (msg); |
513 | else |
1731 | else |
514 | { |
1732 | { |
|
|
1733 | #if EV_AVOID_STDIO |
|
|
1734 | ev_printerr (msg); |
|
|
1735 | ev_printerr (": "); |
|
|
1736 | ev_printerr (strerror (errno)); |
|
|
1737 | ev_printerr ("\n"); |
|
|
1738 | #else |
515 | perror (msg); |
1739 | perror (msg); |
|
|
1740 | #endif |
516 | abort (); |
1741 | abort (); |
517 | } |
1742 | } |
518 | } |
1743 | } |
519 | |
1744 | |
520 | static void * |
1745 | static void * |
521 | ev_realloc_emul (void *ptr, long size) |
1746 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
522 | { |
1747 | { |
523 | /* some systems, notably openbsd and darwin, fail to properly |
1748 | /* some systems, notably openbsd and darwin, fail to properly |
524 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1749 | * implement realloc (x, 0) (as required by both ansi c-89 and |
525 | * the single unix specification, so work around them here. |
1750 | * the single unix specification, so work around them here. |
|
|
1751 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1752 | * despite documenting it otherwise. |
526 | */ |
1753 | */ |
527 | |
1754 | |
528 | if (size) |
1755 | if (size) |
529 | return realloc (ptr, size); |
1756 | return realloc (ptr, size); |
530 | |
1757 | |
531 | free (ptr); |
1758 | free (ptr); |
532 | return 0; |
1759 | return 0; |
533 | } |
1760 | } |
534 | |
1761 | |
535 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1762 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
536 | |
1763 | |
|
|
1764 | ecb_cold |
537 | void |
1765 | void |
538 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1766 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
539 | { |
1767 | { |
540 | alloc = cb; |
1768 | alloc = cb; |
541 | } |
1769 | } |
542 | |
1770 | |
543 | inline_speed void * |
1771 | inline_speed void * |
… | |
… | |
545 | { |
1773 | { |
546 | ptr = alloc (ptr, size); |
1774 | ptr = alloc (ptr, size); |
547 | |
1775 | |
548 | if (!ptr && size) |
1776 | if (!ptr && size) |
549 | { |
1777 | { |
|
|
1778 | #if EV_AVOID_STDIO |
|
|
1779 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1780 | #else |
550 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1781 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1782 | #endif |
551 | abort (); |
1783 | abort (); |
552 | } |
1784 | } |
553 | |
1785 | |
554 | return ptr; |
1786 | return ptr; |
555 | } |
1787 | } |
… | |
… | |
566 | typedef struct |
1798 | typedef struct |
567 | { |
1799 | { |
568 | WL head; |
1800 | WL head; |
569 | unsigned char events; /* the events watched for */ |
1801 | unsigned char events; /* the events watched for */ |
570 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1802 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
571 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1803 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
572 | unsigned char unused; |
1804 | unsigned char unused; |
573 | #if EV_USE_EPOLL |
1805 | #if EV_USE_EPOLL |
574 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1806 | unsigned int egen; /* generation counter to counter epoll bugs */ |
575 | #endif |
1807 | #endif |
576 | #if EV_SELECT_IS_WINSOCKET |
1808 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
577 | SOCKET handle; |
1809 | SOCKET handle; |
|
|
1810 | #endif |
|
|
1811 | #if EV_USE_IOCP |
|
|
1812 | OVERLAPPED or, ow; |
578 | #endif |
1813 | #endif |
579 | } ANFD; |
1814 | } ANFD; |
580 | |
1815 | |
581 | /* stores the pending event set for a given watcher */ |
1816 | /* stores the pending event set for a given watcher */ |
582 | typedef struct |
1817 | typedef struct |
… | |
… | |
624 | #undef VAR |
1859 | #undef VAR |
625 | }; |
1860 | }; |
626 | #include "ev_wrap.h" |
1861 | #include "ev_wrap.h" |
627 | |
1862 | |
628 | static struct ev_loop default_loop_struct; |
1863 | static struct ev_loop default_loop_struct; |
629 | struct ev_loop *ev_default_loop_ptr; |
1864 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
630 | |
1865 | |
631 | #else |
1866 | #else |
632 | |
1867 | |
633 | ev_tstamp ev_rt_now; |
1868 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
634 | #define VAR(name,decl) static decl; |
1869 | #define VAR(name,decl) static decl; |
635 | #include "ev_vars.h" |
1870 | #include "ev_vars.h" |
636 | #undef VAR |
1871 | #undef VAR |
637 | |
1872 | |
638 | static int ev_default_loop_ptr; |
1873 | static int ev_default_loop_ptr; |
639 | |
1874 | |
640 | #endif |
1875 | #endif |
641 | |
1876 | |
642 | #if EV_MINIMAL < 2 |
1877 | #if EV_FEATURE_API |
643 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1878 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
644 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1879 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
645 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1880 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
646 | #else |
1881 | #else |
647 | # define EV_RELEASE_CB (void)0 |
1882 | # define EV_RELEASE_CB (void)0 |
648 | # define EV_ACQUIRE_CB (void)0 |
1883 | # define EV_ACQUIRE_CB (void)0 |
649 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1884 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
650 | #endif |
1885 | #endif |
651 | |
1886 | |
652 | #define EVUNLOOP_RECURSE 0x80 |
1887 | #define EVBREAK_RECURSE 0x80 |
653 | |
1888 | |
654 | /*****************************************************************************/ |
1889 | /*****************************************************************************/ |
655 | |
1890 | |
656 | #ifndef EV_HAVE_EV_TIME |
1891 | #ifndef EV_HAVE_EV_TIME |
657 | ev_tstamp |
1892 | ev_tstamp |
658 | ev_time (void) |
1893 | ev_time (void) EV_NOEXCEPT |
659 | { |
1894 | { |
660 | #if EV_USE_REALTIME |
1895 | #if EV_USE_REALTIME |
661 | if (expect_true (have_realtime)) |
1896 | if (expect_true (have_realtime)) |
662 | { |
1897 | { |
663 | struct timespec ts; |
1898 | struct timespec ts; |
… | |
… | |
687 | return ev_time (); |
1922 | return ev_time (); |
688 | } |
1923 | } |
689 | |
1924 | |
690 | #if EV_MULTIPLICITY |
1925 | #if EV_MULTIPLICITY |
691 | ev_tstamp |
1926 | ev_tstamp |
692 | ev_now (EV_P) |
1927 | ev_now (EV_P) EV_NOEXCEPT |
693 | { |
1928 | { |
694 | return ev_rt_now; |
1929 | return ev_rt_now; |
695 | } |
1930 | } |
696 | #endif |
1931 | #endif |
697 | |
1932 | |
698 | void |
1933 | void |
699 | ev_sleep (ev_tstamp delay) |
1934 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
700 | { |
1935 | { |
701 | if (delay > 0.) |
1936 | if (delay > 0.) |
702 | { |
1937 | { |
703 | #if EV_USE_NANOSLEEP |
1938 | #if EV_USE_NANOSLEEP |
704 | struct timespec ts; |
1939 | struct timespec ts; |
705 | |
1940 | |
706 | ts.tv_sec = (time_t)delay; |
1941 | EV_TS_SET (ts, delay); |
707 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
708 | |
|
|
709 | nanosleep (&ts, 0); |
1942 | nanosleep (&ts, 0); |
710 | #elif defined(_WIN32) |
1943 | #elif defined _WIN32 |
|
|
1944 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1945 | /* compared to select (µs) or nanosleep (ns) */ |
711 | Sleep ((unsigned long)(delay * 1e3)); |
1946 | Sleep ((unsigned long)(delay * 1e3)); |
712 | #else |
1947 | #else |
713 | struct timeval tv; |
1948 | struct timeval tv; |
714 | |
|
|
715 | tv.tv_sec = (time_t)delay; |
|
|
716 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
717 | |
1949 | |
718 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1950 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
719 | /* something not guaranteed by newer posix versions, but guaranteed */ |
1951 | /* something not guaranteed by newer posix versions, but guaranteed */ |
720 | /* by older ones */ |
1952 | /* by older ones */ |
|
|
1953 | EV_TV_SET (tv, delay); |
721 | select (0, 0, 0, 0, &tv); |
1954 | select (0, 0, 0, 0, &tv); |
722 | #endif |
1955 | #endif |
723 | } |
1956 | } |
724 | } |
1957 | } |
725 | |
1958 | |
726 | /*****************************************************************************/ |
1959 | /*****************************************************************************/ |
727 | |
1960 | |
728 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1961 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
729 | |
1962 | |
730 | /* find a suitable new size for the given array, */ |
1963 | /* find a suitable new size for the given array, */ |
731 | /* hopefully by rounding to a ncie-to-malloc size */ |
1964 | /* hopefully by rounding to a nice-to-malloc size */ |
732 | inline_size int |
1965 | inline_size int |
733 | array_nextsize (int elem, int cur, int cnt) |
1966 | array_nextsize (int elem, int cur, int cnt) |
734 | { |
1967 | { |
735 | int ncur = cur + 1; |
1968 | int ncur = cur + 1; |
736 | |
1969 | |
737 | do |
1970 | do |
738 | ncur <<= 1; |
1971 | ncur <<= 1; |
739 | while (cnt > ncur); |
1972 | while (cnt > ncur); |
740 | |
1973 | |
741 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1974 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
742 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1975 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
743 | { |
1976 | { |
744 | ncur *= elem; |
1977 | ncur *= elem; |
745 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1978 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
746 | ncur = ncur - sizeof (void *) * 4; |
1979 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
748 | } |
1981 | } |
749 | |
1982 | |
750 | return ncur; |
1983 | return ncur; |
751 | } |
1984 | } |
752 | |
1985 | |
753 | static noinline void * |
1986 | noinline ecb_cold |
|
|
1987 | static void * |
754 | array_realloc (int elem, void *base, int *cur, int cnt) |
1988 | array_realloc (int elem, void *base, int *cur, int cnt) |
755 | { |
1989 | { |
756 | *cur = array_nextsize (elem, *cur, cnt); |
1990 | *cur = array_nextsize (elem, *cur, cnt); |
757 | return ev_realloc (base, elem * *cur); |
1991 | return ev_realloc (base, elem * *cur); |
758 | } |
1992 | } |
759 | |
1993 | |
|
|
1994 | #define array_needsize_noinit(base,count) |
|
|
1995 | |
760 | #define array_init_zero(base,count) \ |
1996 | #define array_needsize_zerofill(base,count) \ |
761 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1997 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
762 | |
1998 | |
763 | #define array_needsize(type,base,cur,cnt,init) \ |
1999 | #define array_needsize(type,base,cur,cnt,init) \ |
764 | if (expect_false ((cnt) > (cur))) \ |
2000 | if (expect_false ((cnt) > (cur))) \ |
765 | { \ |
2001 | { \ |
766 | int ocur_ = (cur); \ |
2002 | ecb_unused int ocur_ = (cur); \ |
767 | (base) = (type *)array_realloc \ |
2003 | (base) = (type *)array_realloc \ |
768 | (sizeof (type), (base), &(cur), (cnt)); \ |
2004 | (sizeof (type), (base), &(cur), (cnt)); \ |
769 | init ((base) + (ocur_), (cur) - ocur_); \ |
2005 | init ((base) + (ocur_), (cur) - ocur_); \ |
770 | } |
2006 | } |
771 | |
2007 | |
… | |
… | |
783 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2019 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
784 | |
2020 | |
785 | /*****************************************************************************/ |
2021 | /*****************************************************************************/ |
786 | |
2022 | |
787 | /* dummy callback for pending events */ |
2023 | /* dummy callback for pending events */ |
788 | static void noinline |
2024 | noinline |
|
|
2025 | static void |
789 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2026 | pendingcb (EV_P_ ev_prepare *w, int revents) |
790 | { |
2027 | { |
791 | } |
2028 | } |
792 | |
2029 | |
793 | void noinline |
2030 | noinline |
|
|
2031 | void |
794 | ev_feed_event (EV_P_ void *w, int revents) |
2032 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
795 | { |
2033 | { |
796 | W w_ = (W)w; |
2034 | W w_ = (W)w; |
797 | int pri = ABSPRI (w_); |
2035 | int pri = ABSPRI (w_); |
798 | |
2036 | |
799 | if (expect_false (w_->pending)) |
2037 | if (expect_false (w_->pending)) |
800 | pendings [pri][w_->pending - 1].events |= revents; |
2038 | pendings [pri][w_->pending - 1].events |= revents; |
801 | else |
2039 | else |
802 | { |
2040 | { |
803 | w_->pending = ++pendingcnt [pri]; |
2041 | w_->pending = ++pendingcnt [pri]; |
804 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2042 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
805 | pendings [pri][w_->pending - 1].w = w_; |
2043 | pendings [pri][w_->pending - 1].w = w_; |
806 | pendings [pri][w_->pending - 1].events = revents; |
2044 | pendings [pri][w_->pending - 1].events = revents; |
807 | } |
2045 | } |
|
|
2046 | |
|
|
2047 | pendingpri = NUMPRI - 1; |
808 | } |
2048 | } |
809 | |
2049 | |
810 | inline_speed void |
2050 | inline_speed void |
811 | feed_reverse (EV_P_ W w) |
2051 | feed_reverse (EV_P_ W w) |
812 | { |
2052 | { |
813 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2053 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
814 | rfeeds [rfeedcnt++] = w; |
2054 | rfeeds [rfeedcnt++] = w; |
815 | } |
2055 | } |
816 | |
2056 | |
817 | inline_size void |
2057 | inline_size void |
818 | feed_reverse_done (EV_P_ int revents) |
2058 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
832 | } |
2072 | } |
833 | |
2073 | |
834 | /*****************************************************************************/ |
2074 | /*****************************************************************************/ |
835 | |
2075 | |
836 | inline_speed void |
2076 | inline_speed void |
837 | fd_event_nc (EV_P_ int fd, int revents) |
2077 | fd_event_nocheck (EV_P_ int fd, int revents) |
838 | { |
2078 | { |
839 | ANFD *anfd = anfds + fd; |
2079 | ANFD *anfd = anfds + fd; |
840 | ev_io *w; |
2080 | ev_io *w; |
841 | |
2081 | |
842 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2082 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
854 | fd_event (EV_P_ int fd, int revents) |
2094 | fd_event (EV_P_ int fd, int revents) |
855 | { |
2095 | { |
856 | ANFD *anfd = anfds + fd; |
2096 | ANFD *anfd = anfds + fd; |
857 | |
2097 | |
858 | if (expect_true (!anfd->reify)) |
2098 | if (expect_true (!anfd->reify)) |
859 | fd_event_nc (EV_A_ fd, revents); |
2099 | fd_event_nocheck (EV_A_ fd, revents); |
860 | } |
2100 | } |
861 | |
2101 | |
862 | void |
2102 | void |
863 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2103 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
864 | { |
2104 | { |
865 | if (fd >= 0 && fd < anfdmax) |
2105 | if (fd >= 0 && fd < anfdmax) |
866 | fd_event_nc (EV_A_ fd, revents); |
2106 | fd_event_nocheck (EV_A_ fd, revents); |
867 | } |
2107 | } |
868 | |
2108 | |
869 | /* make sure the external fd watch events are in-sync */ |
2109 | /* make sure the external fd watch events are in-sync */ |
870 | /* with the kernel/libev internal state */ |
2110 | /* with the kernel/libev internal state */ |
871 | inline_size void |
2111 | inline_size void |
872 | fd_reify (EV_P) |
2112 | fd_reify (EV_P) |
873 | { |
2113 | { |
874 | int i; |
2114 | int i; |
875 | |
2115 | |
|
|
2116 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2117 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2118 | { |
|
|
2119 | int fd = fdchanges [i]; |
|
|
2120 | ANFD *anfd = anfds + fd; |
|
|
2121 | |
|
|
2122 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2123 | { |
|
|
2124 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2125 | |
|
|
2126 | if (handle != anfd->handle) |
|
|
2127 | { |
|
|
2128 | unsigned long arg; |
|
|
2129 | |
|
|
2130 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2131 | |
|
|
2132 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2133 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2134 | anfd->events = 0; |
|
|
2135 | anfd->handle = handle; |
|
|
2136 | } |
|
|
2137 | } |
|
|
2138 | } |
|
|
2139 | #endif |
|
|
2140 | |
876 | for (i = 0; i < fdchangecnt; ++i) |
2141 | for (i = 0; i < fdchangecnt; ++i) |
877 | { |
2142 | { |
878 | int fd = fdchanges [i]; |
2143 | int fd = fdchanges [i]; |
879 | ANFD *anfd = anfds + fd; |
2144 | ANFD *anfd = anfds + fd; |
880 | ev_io *w; |
2145 | ev_io *w; |
881 | |
2146 | |
882 | unsigned char events = 0; |
2147 | unsigned char o_events = anfd->events; |
|
|
2148 | unsigned char o_reify = anfd->reify; |
883 | |
2149 | |
884 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2150 | anfd->reify = 0; |
885 | events |= (unsigned char)w->events; |
|
|
886 | |
2151 | |
887 | #if EV_SELECT_IS_WINSOCKET |
2152 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
888 | if (events) |
|
|
889 | { |
2153 | { |
890 | unsigned long arg; |
2154 | anfd->events = 0; |
891 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2155 | |
892 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
2156 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
2157 | anfd->events |= (unsigned char)w->events; |
|
|
2158 | |
|
|
2159 | if (o_events != anfd->events) |
|
|
2160 | o_reify = EV__IOFDSET; /* actually |= */ |
893 | } |
2161 | } |
894 | #endif |
|
|
895 | |
2162 | |
896 | { |
2163 | if (o_reify & EV__IOFDSET) |
897 | unsigned char o_events = anfd->events; |
|
|
898 | unsigned char o_reify = anfd->reify; |
|
|
899 | |
|
|
900 | anfd->reify = 0; |
|
|
901 | anfd->events = events; |
|
|
902 | |
|
|
903 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
904 | backend_modify (EV_A_ fd, o_events, events); |
2164 | backend_modify (EV_A_ fd, o_events, anfd->events); |
905 | } |
|
|
906 | } |
2165 | } |
907 | |
2166 | |
908 | fdchangecnt = 0; |
2167 | fdchangecnt = 0; |
909 | } |
2168 | } |
910 | |
2169 | |
911 | /* something about the given fd changed */ |
2170 | /* something about the given fd changed */ |
912 | inline_size void |
2171 | inline_size |
|
|
2172 | void |
913 | fd_change (EV_P_ int fd, int flags) |
2173 | fd_change (EV_P_ int fd, int flags) |
914 | { |
2174 | { |
915 | unsigned char reify = anfds [fd].reify; |
2175 | unsigned char reify = anfds [fd].reify; |
916 | anfds [fd].reify |= flags; |
2176 | anfds [fd].reify |= flags; |
917 | |
2177 | |
918 | if (expect_true (!reify)) |
2178 | if (expect_true (!reify)) |
919 | { |
2179 | { |
920 | ++fdchangecnt; |
2180 | ++fdchangecnt; |
921 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2181 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
922 | fdchanges [fdchangecnt - 1] = fd; |
2182 | fdchanges [fdchangecnt - 1] = fd; |
923 | } |
2183 | } |
924 | } |
2184 | } |
925 | |
2185 | |
926 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2186 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
927 | inline_speed void |
2187 | inline_speed ecb_cold void |
928 | fd_kill (EV_P_ int fd) |
2188 | fd_kill (EV_P_ int fd) |
929 | { |
2189 | { |
930 | ev_io *w; |
2190 | ev_io *w; |
931 | |
2191 | |
932 | while ((w = (ev_io *)anfds [fd].head)) |
2192 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
934 | ev_io_stop (EV_A_ w); |
2194 | ev_io_stop (EV_A_ w); |
935 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2195 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
936 | } |
2196 | } |
937 | } |
2197 | } |
938 | |
2198 | |
939 | /* check whether the given fd is atcually valid, for error recovery */ |
2199 | /* check whether the given fd is actually valid, for error recovery */ |
940 | inline_size int |
2200 | inline_size ecb_cold int |
941 | fd_valid (int fd) |
2201 | fd_valid (int fd) |
942 | { |
2202 | { |
943 | #ifdef _WIN32 |
2203 | #ifdef _WIN32 |
944 | return _get_osfhandle (fd) != -1; |
2204 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
945 | #else |
2205 | #else |
946 | return fcntl (fd, F_GETFD) != -1; |
2206 | return fcntl (fd, F_GETFD) != -1; |
947 | #endif |
2207 | #endif |
948 | } |
2208 | } |
949 | |
2209 | |
950 | /* called on EBADF to verify fds */ |
2210 | /* called on EBADF to verify fds */ |
951 | static void noinline |
2211 | noinline ecb_cold |
|
|
2212 | static void |
952 | fd_ebadf (EV_P) |
2213 | fd_ebadf (EV_P) |
953 | { |
2214 | { |
954 | int fd; |
2215 | int fd; |
955 | |
2216 | |
956 | for (fd = 0; fd < anfdmax; ++fd) |
2217 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
958 | if (!fd_valid (fd) && errno == EBADF) |
2219 | if (!fd_valid (fd) && errno == EBADF) |
959 | fd_kill (EV_A_ fd); |
2220 | fd_kill (EV_A_ fd); |
960 | } |
2221 | } |
961 | |
2222 | |
962 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2223 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
963 | static void noinline |
2224 | noinline ecb_cold |
|
|
2225 | static void |
964 | fd_enomem (EV_P) |
2226 | fd_enomem (EV_P) |
965 | { |
2227 | { |
966 | int fd; |
2228 | int fd; |
967 | |
2229 | |
968 | for (fd = anfdmax; fd--; ) |
2230 | for (fd = anfdmax; fd--; ) |
… | |
… | |
972 | break; |
2234 | break; |
973 | } |
2235 | } |
974 | } |
2236 | } |
975 | |
2237 | |
976 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2238 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
977 | static void noinline |
2239 | noinline |
|
|
2240 | static void |
978 | fd_rearm_all (EV_P) |
2241 | fd_rearm_all (EV_P) |
979 | { |
2242 | { |
980 | int fd; |
2243 | int fd; |
981 | |
2244 | |
982 | for (fd = 0; fd < anfdmax; ++fd) |
2245 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
986 | anfds [fd].emask = 0; |
2249 | anfds [fd].emask = 0; |
987 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
2250 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
988 | } |
2251 | } |
989 | } |
2252 | } |
990 | |
2253 | |
|
|
2254 | /* used to prepare libev internal fd's */ |
|
|
2255 | /* this is not fork-safe */ |
|
|
2256 | inline_speed void |
|
|
2257 | fd_intern (int fd) |
|
|
2258 | { |
|
|
2259 | #ifdef _WIN32 |
|
|
2260 | unsigned long arg = 1; |
|
|
2261 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2262 | #else |
|
|
2263 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2264 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2265 | #endif |
|
|
2266 | } |
|
|
2267 | |
991 | /*****************************************************************************/ |
2268 | /*****************************************************************************/ |
992 | |
2269 | |
993 | /* |
2270 | /* |
994 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2271 | * the heap functions want a real array index. array index 0 is guaranteed to not |
995 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2272 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
996 | * the branching factor of the d-tree. |
2273 | * the branching factor of the d-tree. |
997 | */ |
2274 | */ |
998 | |
2275 | |
999 | /* |
2276 | /* |
… | |
… | |
1147 | |
2424 | |
1148 | static ANSIG signals [EV_NSIG - 1]; |
2425 | static ANSIG signals [EV_NSIG - 1]; |
1149 | |
2426 | |
1150 | /*****************************************************************************/ |
2427 | /*****************************************************************************/ |
1151 | |
2428 | |
1152 | /* used to prepare libev internal fd's */ |
2429 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1153 | /* this is not fork-safe */ |
2430 | |
|
|
2431 | noinline ecb_cold |
|
|
2432 | static void |
|
|
2433 | evpipe_init (EV_P) |
|
|
2434 | { |
|
|
2435 | if (!ev_is_active (&pipe_w)) |
|
|
2436 | { |
|
|
2437 | int fds [2]; |
|
|
2438 | |
|
|
2439 | # if EV_USE_EVENTFD |
|
|
2440 | fds [0] = -1; |
|
|
2441 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2442 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2443 | fds [1] = eventfd (0, 0); |
|
|
2444 | |
|
|
2445 | if (fds [1] < 0) |
|
|
2446 | # endif |
|
|
2447 | { |
|
|
2448 | while (pipe (fds)) |
|
|
2449 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2450 | |
|
|
2451 | fd_intern (fds [0]); |
|
|
2452 | } |
|
|
2453 | |
|
|
2454 | evpipe [0] = fds [0]; |
|
|
2455 | |
|
|
2456 | if (evpipe [1] < 0) |
|
|
2457 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2458 | else |
|
|
2459 | { |
|
|
2460 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2461 | /* so that evpipe_write can always rely on its value. */ |
|
|
2462 | /* this branch does not do anything sensible on windows, */ |
|
|
2463 | /* so must not be executed on windows */ |
|
|
2464 | |
|
|
2465 | dup2 (fds [1], evpipe [1]); |
|
|
2466 | close (fds [1]); |
|
|
2467 | } |
|
|
2468 | |
|
|
2469 | fd_intern (evpipe [1]); |
|
|
2470 | |
|
|
2471 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2472 | ev_io_start (EV_A_ &pipe_w); |
|
|
2473 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2474 | } |
|
|
2475 | } |
|
|
2476 | |
1154 | inline_speed void |
2477 | inline_speed void |
1155 | fd_intern (int fd) |
2478 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1156 | { |
2479 | { |
1157 | #ifdef _WIN32 |
2480 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1158 | unsigned long arg = 1; |
|
|
1159 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1160 | #else |
|
|
1161 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1162 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1163 | #endif |
|
|
1164 | } |
|
|
1165 | |
2481 | |
1166 | static void noinline |
2482 | if (expect_true (*flag)) |
1167 | evpipe_init (EV_P) |
2483 | return; |
1168 | { |
2484 | |
1169 | if (!ev_is_active (&pipe_w)) |
2485 | *flag = 1; |
|
|
2486 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2487 | |
|
|
2488 | pipe_write_skipped = 1; |
|
|
2489 | |
|
|
2490 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2491 | |
|
|
2492 | if (pipe_write_wanted) |
1170 | { |
2493 | { |
|
|
2494 | int old_errno; |
|
|
2495 | |
|
|
2496 | pipe_write_skipped = 0; |
|
|
2497 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2498 | |
|
|
2499 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2500 | |
1171 | #if EV_USE_EVENTFD |
2501 | #if EV_USE_EVENTFD |
1172 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2502 | if (evpipe [0] < 0) |
1173 | if (evfd < 0 && errno == EINVAL) |
|
|
1174 | evfd = eventfd (0, 0); |
|
|
1175 | |
|
|
1176 | if (evfd >= 0) |
|
|
1177 | { |
2503 | { |
1178 | evpipe [0] = -1; |
2504 | uint64_t counter = 1; |
1179 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2505 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1180 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1181 | } |
2506 | } |
1182 | else |
2507 | else |
1183 | #endif |
2508 | #endif |
1184 | { |
2509 | { |
1185 | while (pipe (evpipe)) |
2510 | #ifdef _WIN32 |
1186 | ev_syserr ("(libev) error creating signal/async pipe"); |
2511 | WSABUF buf; |
1187 | |
2512 | DWORD sent; |
1188 | fd_intern (evpipe [0]); |
2513 | buf.buf = (char *)&buf; |
1189 | fd_intern (evpipe [1]); |
2514 | buf.len = 1; |
1190 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2515 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2516 | #else |
|
|
2517 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2518 | #endif |
1191 | } |
2519 | } |
1192 | |
|
|
1193 | ev_io_start (EV_A_ &pipe_w); |
|
|
1194 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1195 | } |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | inline_size void |
|
|
1199 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1200 | { |
|
|
1201 | if (!*flag) |
|
|
1202 | { |
|
|
1203 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1204 | |
|
|
1205 | *flag = 1; |
|
|
1206 | |
|
|
1207 | #if EV_USE_EVENTFD |
|
|
1208 | if (evfd >= 0) |
|
|
1209 | { |
|
|
1210 | uint64_t counter = 1; |
|
|
1211 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1212 | } |
|
|
1213 | else |
|
|
1214 | #endif |
|
|
1215 | write (evpipe [1], &old_errno, 1); |
|
|
1216 | |
2520 | |
1217 | errno = old_errno; |
2521 | errno = old_errno; |
1218 | } |
2522 | } |
1219 | } |
2523 | } |
1220 | |
2524 | |
… | |
… | |
1223 | static void |
2527 | static void |
1224 | pipecb (EV_P_ ev_io *iow, int revents) |
2528 | pipecb (EV_P_ ev_io *iow, int revents) |
1225 | { |
2529 | { |
1226 | int i; |
2530 | int i; |
1227 | |
2531 | |
|
|
2532 | if (revents & EV_READ) |
|
|
2533 | { |
1228 | #if EV_USE_EVENTFD |
2534 | #if EV_USE_EVENTFD |
1229 | if (evfd >= 0) |
2535 | if (evpipe [0] < 0) |
1230 | { |
2536 | { |
1231 | uint64_t counter; |
2537 | uint64_t counter; |
1232 | read (evfd, &counter, sizeof (uint64_t)); |
2538 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1233 | } |
2539 | } |
1234 | else |
2540 | else |
1235 | #endif |
2541 | #endif |
1236 | { |
2542 | { |
1237 | char dummy; |
2543 | char dummy[4]; |
|
|
2544 | #ifdef _WIN32 |
|
|
2545 | WSABUF buf; |
|
|
2546 | DWORD recvd; |
|
|
2547 | DWORD flags = 0; |
|
|
2548 | buf.buf = dummy; |
|
|
2549 | buf.len = sizeof (dummy); |
|
|
2550 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2551 | #else |
1238 | read (evpipe [0], &dummy, 1); |
2552 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2553 | #endif |
|
|
2554 | } |
1239 | } |
2555 | } |
1240 | |
2556 | |
|
|
2557 | pipe_write_skipped = 0; |
|
|
2558 | |
|
|
2559 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2560 | |
|
|
2561 | #if EV_SIGNAL_ENABLE |
1241 | if (sig_pending) |
2562 | if (sig_pending) |
1242 | { |
2563 | { |
1243 | sig_pending = 0; |
2564 | sig_pending = 0; |
|
|
2565 | |
|
|
2566 | ECB_MEMORY_FENCE; |
1244 | |
2567 | |
1245 | for (i = EV_NSIG - 1; i--; ) |
2568 | for (i = EV_NSIG - 1; i--; ) |
1246 | if (expect_false (signals [i].pending)) |
2569 | if (expect_false (signals [i].pending)) |
1247 | ev_feed_signal_event (EV_A_ i + 1); |
2570 | ev_feed_signal_event (EV_A_ i + 1); |
1248 | } |
2571 | } |
|
|
2572 | #endif |
1249 | |
2573 | |
1250 | #if EV_ASYNC_ENABLE |
2574 | #if EV_ASYNC_ENABLE |
1251 | if (async_pending) |
2575 | if (async_pending) |
1252 | { |
2576 | { |
1253 | async_pending = 0; |
2577 | async_pending = 0; |
|
|
2578 | |
|
|
2579 | ECB_MEMORY_FENCE; |
1254 | |
2580 | |
1255 | for (i = asynccnt; i--; ) |
2581 | for (i = asynccnt; i--; ) |
1256 | if (asyncs [i]->sent) |
2582 | if (asyncs [i]->sent) |
1257 | { |
2583 | { |
1258 | asyncs [i]->sent = 0; |
2584 | asyncs [i]->sent = 0; |
|
|
2585 | ECB_MEMORY_FENCE_RELEASE; |
1259 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2586 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1260 | } |
2587 | } |
1261 | } |
2588 | } |
1262 | #endif |
2589 | #endif |
1263 | } |
2590 | } |
1264 | |
2591 | |
1265 | /*****************************************************************************/ |
2592 | /*****************************************************************************/ |
1266 | |
2593 | |
|
|
2594 | void |
|
|
2595 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2596 | { |
|
|
2597 | #if EV_MULTIPLICITY |
|
|
2598 | EV_P; |
|
|
2599 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2600 | EV_A = signals [signum - 1].loop; |
|
|
2601 | |
|
|
2602 | if (!EV_A) |
|
|
2603 | return; |
|
|
2604 | #endif |
|
|
2605 | |
|
|
2606 | signals [signum - 1].pending = 1; |
|
|
2607 | evpipe_write (EV_A_ &sig_pending); |
|
|
2608 | } |
|
|
2609 | |
1267 | static void |
2610 | static void |
1268 | ev_sighandler (int signum) |
2611 | ev_sighandler (int signum) |
1269 | { |
2612 | { |
1270 | #if EV_MULTIPLICITY |
|
|
1271 | EV_P = signals [signum - 1].loop; |
|
|
1272 | #endif |
|
|
1273 | |
|
|
1274 | #if _WIN32 |
2613 | #ifdef _WIN32 |
1275 | signal (signum, ev_sighandler); |
2614 | signal (signum, ev_sighandler); |
1276 | #endif |
2615 | #endif |
1277 | |
2616 | |
1278 | signals [signum - 1].pending = 1; |
2617 | ev_feed_signal (signum); |
1279 | evpipe_write (EV_A_ &sig_pending); |
|
|
1280 | } |
2618 | } |
1281 | |
2619 | |
1282 | void noinline |
2620 | noinline |
|
|
2621 | void |
1283 | ev_feed_signal_event (EV_P_ int signum) |
2622 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1284 | { |
2623 | { |
1285 | WL w; |
2624 | WL w; |
1286 | |
2625 | |
1287 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2626 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1288 | return; |
2627 | return; |
1289 | |
2628 | |
1290 | --signum; |
2629 | --signum; |
1291 | |
2630 | |
1292 | #if EV_MULTIPLICITY |
2631 | #if EV_MULTIPLICITY |
… | |
… | |
1296 | if (expect_false (signals [signum].loop != EV_A)) |
2635 | if (expect_false (signals [signum].loop != EV_A)) |
1297 | return; |
2636 | return; |
1298 | #endif |
2637 | #endif |
1299 | |
2638 | |
1300 | signals [signum].pending = 0; |
2639 | signals [signum].pending = 0; |
|
|
2640 | ECB_MEMORY_FENCE_RELEASE; |
1301 | |
2641 | |
1302 | for (w = signals [signum].head; w; w = w->next) |
2642 | for (w = signals [signum].head; w; w = w->next) |
1303 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2643 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1304 | } |
2644 | } |
1305 | |
2645 | |
… | |
… | |
1321 | break; |
2661 | break; |
1322 | } |
2662 | } |
1323 | } |
2663 | } |
1324 | #endif |
2664 | #endif |
1325 | |
2665 | |
|
|
2666 | #endif |
|
|
2667 | |
1326 | /*****************************************************************************/ |
2668 | /*****************************************************************************/ |
1327 | |
2669 | |
|
|
2670 | #if EV_CHILD_ENABLE |
1328 | static WL childs [EV_PID_HASHSIZE]; |
2671 | static WL childs [EV_PID_HASHSIZE]; |
1329 | |
|
|
1330 | #ifndef _WIN32 |
|
|
1331 | |
2672 | |
1332 | static ev_signal childev; |
2673 | static ev_signal childev; |
1333 | |
2674 | |
1334 | #ifndef WIFCONTINUED |
2675 | #ifndef WIFCONTINUED |
1335 | # define WIFCONTINUED(status) 0 |
2676 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1340 | child_reap (EV_P_ int chain, int pid, int status) |
2681 | child_reap (EV_P_ int chain, int pid, int status) |
1341 | { |
2682 | { |
1342 | ev_child *w; |
2683 | ev_child *w; |
1343 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2684 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1344 | |
2685 | |
1345 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2686 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1346 | { |
2687 | { |
1347 | if ((w->pid == pid || !w->pid) |
2688 | if ((w->pid == pid || !w->pid) |
1348 | && (!traced || (w->flags & 1))) |
2689 | && (!traced || (w->flags & 1))) |
1349 | { |
2690 | { |
1350 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2691 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1375 | /* make sure we are called again until all children have been reaped */ |
2716 | /* make sure we are called again until all children have been reaped */ |
1376 | /* we need to do it this way so that the callback gets called before we continue */ |
2717 | /* we need to do it this way so that the callback gets called before we continue */ |
1377 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2718 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1378 | |
2719 | |
1379 | child_reap (EV_A_ pid, pid, status); |
2720 | child_reap (EV_A_ pid, pid, status); |
1380 | if (EV_PID_HASHSIZE > 1) |
2721 | if ((EV_PID_HASHSIZE) > 1) |
1381 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2722 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1382 | } |
2723 | } |
1383 | |
2724 | |
1384 | #endif |
2725 | #endif |
1385 | |
2726 | |
1386 | /*****************************************************************************/ |
2727 | /*****************************************************************************/ |
1387 | |
2728 | |
|
|
2729 | #if EV_USE_IOCP |
|
|
2730 | # include "ev_iocp.c" |
|
|
2731 | #endif |
1388 | #if EV_USE_PORT |
2732 | #if EV_USE_PORT |
1389 | # include "ev_port.c" |
2733 | # include "ev_port.c" |
1390 | #endif |
2734 | #endif |
1391 | #if EV_USE_KQUEUE |
2735 | #if EV_USE_KQUEUE |
1392 | # include "ev_kqueue.c" |
2736 | # include "ev_kqueue.c" |
1393 | #endif |
2737 | #endif |
1394 | #if EV_USE_EPOLL |
2738 | #if EV_USE_EPOLL |
1395 | # include "ev_epoll.c" |
2739 | # include "ev_epoll.c" |
1396 | #endif |
2740 | #endif |
|
|
2741 | #if EV_USE_LINUXAIO |
|
|
2742 | # include "ev_linuxaio.c" |
|
|
2743 | #endif |
1397 | #if EV_USE_POLL |
2744 | #if EV_USE_POLL |
1398 | # include "ev_poll.c" |
2745 | # include "ev_poll.c" |
1399 | #endif |
2746 | #endif |
1400 | #if EV_USE_SELECT |
2747 | #if EV_USE_SELECT |
1401 | # include "ev_select.c" |
2748 | # include "ev_select.c" |
1402 | #endif |
2749 | #endif |
1403 | |
2750 | |
1404 | int |
2751 | ecb_cold int |
1405 | ev_version_major (void) |
2752 | ev_version_major (void) EV_NOEXCEPT |
1406 | { |
2753 | { |
1407 | return EV_VERSION_MAJOR; |
2754 | return EV_VERSION_MAJOR; |
1408 | } |
2755 | } |
1409 | |
2756 | |
1410 | int |
2757 | ecb_cold int |
1411 | ev_version_minor (void) |
2758 | ev_version_minor (void) EV_NOEXCEPT |
1412 | { |
2759 | { |
1413 | return EV_VERSION_MINOR; |
2760 | return EV_VERSION_MINOR; |
1414 | } |
2761 | } |
1415 | |
2762 | |
1416 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2763 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1417 | int inline_size |
2764 | inline_size ecb_cold int |
1418 | enable_secure (void) |
2765 | enable_secure (void) |
1419 | { |
2766 | { |
1420 | #ifdef _WIN32 |
2767 | #ifdef _WIN32 |
1421 | return 0; |
2768 | return 0; |
1422 | #else |
2769 | #else |
1423 | return getuid () != geteuid () |
2770 | return getuid () != geteuid () |
1424 | || getgid () != getegid (); |
2771 | || getgid () != getegid (); |
1425 | #endif |
2772 | #endif |
1426 | } |
2773 | } |
1427 | |
2774 | |
|
|
2775 | ecb_cold |
1428 | unsigned int |
2776 | unsigned int |
1429 | ev_supported_backends (void) |
2777 | ev_supported_backends (void) EV_NOEXCEPT |
1430 | { |
2778 | { |
1431 | unsigned int flags = 0; |
2779 | unsigned int flags = 0; |
1432 | |
2780 | |
1433 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2781 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1434 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2782 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1435 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2783 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2784 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
1436 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2785 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1437 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2786 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1438 | |
2787 | |
1439 | return flags; |
2788 | return flags; |
1440 | } |
2789 | } |
1441 | |
2790 | |
|
|
2791 | ecb_cold |
1442 | unsigned int |
2792 | unsigned int |
1443 | ev_recommended_backends (void) |
2793 | ev_recommended_backends (void) EV_NOEXCEPT |
1444 | { |
2794 | { |
1445 | unsigned int flags = ev_supported_backends (); |
2795 | unsigned int flags = ev_supported_backends (); |
1446 | |
2796 | |
1447 | #ifndef __NetBSD__ |
2797 | #ifndef __NetBSD__ |
1448 | /* kqueue is borked on everything but netbsd apparently */ |
2798 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1452 | #ifdef __APPLE__ |
2802 | #ifdef __APPLE__ |
1453 | /* only select works correctly on that "unix-certified" platform */ |
2803 | /* only select works correctly on that "unix-certified" platform */ |
1454 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2804 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1455 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2805 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1456 | #endif |
2806 | #endif |
|
|
2807 | #ifdef __FreeBSD__ |
|
|
2808 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2809 | #endif |
|
|
2810 | |
|
|
2811 | /* TODO: linuxaio is very experimental */ |
|
|
2812 | flags &= ~EVBACKEND_LINUXAIO; |
1457 | |
2813 | |
1458 | return flags; |
2814 | return flags; |
1459 | } |
2815 | } |
1460 | |
2816 | |
|
|
2817 | ecb_cold |
1461 | unsigned int |
2818 | unsigned int |
1462 | ev_embeddable_backends (void) |
2819 | ev_embeddable_backends (void) EV_NOEXCEPT |
1463 | { |
2820 | { |
1464 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2821 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1465 | |
2822 | |
1466 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2823 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1467 | /* please fix it and tell me how to detect the fix */ |
2824 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1468 | flags &= ~EVBACKEND_EPOLL; |
2825 | flags &= ~EVBACKEND_EPOLL; |
1469 | |
2826 | |
1470 | return flags; |
2827 | return flags; |
1471 | } |
2828 | } |
1472 | |
2829 | |
1473 | unsigned int |
2830 | unsigned int |
1474 | ev_backend (EV_P) |
2831 | ev_backend (EV_P) EV_NOEXCEPT |
1475 | { |
2832 | { |
1476 | return backend; |
2833 | return backend; |
1477 | } |
2834 | } |
1478 | |
2835 | |
1479 | #if EV_MINIMAL < 2 |
2836 | #if EV_FEATURE_API |
1480 | unsigned int |
2837 | unsigned int |
1481 | ev_loop_count (EV_P) |
2838 | ev_iteration (EV_P) EV_NOEXCEPT |
1482 | { |
2839 | { |
1483 | return loop_count; |
2840 | return loop_count; |
1484 | } |
2841 | } |
1485 | |
2842 | |
1486 | unsigned int |
2843 | unsigned int |
1487 | ev_loop_depth (EV_P) |
2844 | ev_depth (EV_P) EV_NOEXCEPT |
1488 | { |
2845 | { |
1489 | return loop_depth; |
2846 | return loop_depth; |
1490 | } |
2847 | } |
1491 | |
2848 | |
1492 | void |
2849 | void |
1493 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2850 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1494 | { |
2851 | { |
1495 | io_blocktime = interval; |
2852 | io_blocktime = interval; |
1496 | } |
2853 | } |
1497 | |
2854 | |
1498 | void |
2855 | void |
1499 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2856 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1500 | { |
2857 | { |
1501 | timeout_blocktime = interval; |
2858 | timeout_blocktime = interval; |
1502 | } |
2859 | } |
1503 | |
2860 | |
1504 | void |
2861 | void |
1505 | ev_set_userdata (EV_P_ void *data) |
2862 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1506 | { |
2863 | { |
1507 | userdata = data; |
2864 | userdata = data; |
1508 | } |
2865 | } |
1509 | |
2866 | |
1510 | void * |
2867 | void * |
1511 | ev_userdata (EV_P) |
2868 | ev_userdata (EV_P) EV_NOEXCEPT |
1512 | { |
2869 | { |
1513 | return userdata; |
2870 | return userdata; |
1514 | } |
2871 | } |
1515 | |
2872 | |
|
|
2873 | void |
1516 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2874 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1517 | { |
2875 | { |
1518 | invoke_cb = invoke_pending_cb; |
2876 | invoke_cb = invoke_pending_cb; |
1519 | } |
2877 | } |
1520 | |
2878 | |
|
|
2879 | void |
1521 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2880 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1522 | { |
2881 | { |
1523 | release_cb = release; |
2882 | release_cb = release; |
1524 | acquire_cb = acquire; |
2883 | acquire_cb = acquire; |
1525 | } |
2884 | } |
1526 | #endif |
2885 | #endif |
1527 | |
2886 | |
1528 | /* initialise a loop structure, must be zero-initialised */ |
2887 | /* initialise a loop structure, must be zero-initialised */ |
1529 | static void noinline |
2888 | noinline ecb_cold |
|
|
2889 | static void |
1530 | loop_init (EV_P_ unsigned int flags) |
2890 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1531 | { |
2891 | { |
1532 | if (!backend) |
2892 | if (!backend) |
1533 | { |
2893 | { |
|
|
2894 | origflags = flags; |
|
|
2895 | |
1534 | #if EV_USE_REALTIME |
2896 | #if EV_USE_REALTIME |
1535 | if (!have_realtime) |
2897 | if (!have_realtime) |
1536 | { |
2898 | { |
1537 | struct timespec ts; |
2899 | struct timespec ts; |
1538 | |
2900 | |
… | |
… | |
1560 | if (!(flags & EVFLAG_NOENV) |
2922 | if (!(flags & EVFLAG_NOENV) |
1561 | && !enable_secure () |
2923 | && !enable_secure () |
1562 | && getenv ("LIBEV_FLAGS")) |
2924 | && getenv ("LIBEV_FLAGS")) |
1563 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2925 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1564 | |
2926 | |
1565 | ev_rt_now = ev_time (); |
2927 | ev_rt_now = ev_time (); |
1566 | mn_now = get_clock (); |
2928 | mn_now = get_clock (); |
1567 | now_floor = mn_now; |
2929 | now_floor = mn_now; |
1568 | rtmn_diff = ev_rt_now - mn_now; |
2930 | rtmn_diff = ev_rt_now - mn_now; |
1569 | #if EV_MINIMAL < 2 |
2931 | #if EV_FEATURE_API |
1570 | invoke_cb = ev_invoke_pending; |
2932 | invoke_cb = ev_invoke_pending; |
1571 | #endif |
2933 | #endif |
1572 | |
2934 | |
1573 | io_blocktime = 0.; |
2935 | io_blocktime = 0.; |
1574 | timeout_blocktime = 0.; |
2936 | timeout_blocktime = 0.; |
1575 | backend = 0; |
2937 | backend = 0; |
1576 | backend_fd = -1; |
2938 | backend_fd = -1; |
1577 | sig_pending = 0; |
2939 | sig_pending = 0; |
1578 | #if EV_ASYNC_ENABLE |
2940 | #if EV_ASYNC_ENABLE |
1579 | async_pending = 0; |
2941 | async_pending = 0; |
1580 | #endif |
2942 | #endif |
|
|
2943 | pipe_write_skipped = 0; |
|
|
2944 | pipe_write_wanted = 0; |
|
|
2945 | evpipe [0] = -1; |
|
|
2946 | evpipe [1] = -1; |
1581 | #if EV_USE_INOTIFY |
2947 | #if EV_USE_INOTIFY |
1582 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2948 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1583 | #endif |
2949 | #endif |
1584 | #if EV_USE_SIGNALFD |
2950 | #if EV_USE_SIGNALFD |
1585 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
2951 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1586 | #endif |
2952 | #endif |
1587 | |
2953 | |
1588 | if (!(flags & 0x0000ffffU)) |
2954 | if (!(flags & EVBACKEND_MASK)) |
1589 | flags |= ev_recommended_backends (); |
2955 | flags |= ev_recommended_backends (); |
1590 | |
2956 | |
|
|
2957 | #if EV_USE_IOCP |
|
|
2958 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2959 | #endif |
1591 | #if EV_USE_PORT |
2960 | #if EV_USE_PORT |
1592 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2961 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1593 | #endif |
2962 | #endif |
1594 | #if EV_USE_KQUEUE |
2963 | #if EV_USE_KQUEUE |
1595 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2964 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
2965 | #endif |
|
|
2966 | #if EV_USE_LINUXAIO |
|
|
2967 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1596 | #endif |
2968 | #endif |
1597 | #if EV_USE_EPOLL |
2969 | #if EV_USE_EPOLL |
1598 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2970 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1599 | #endif |
2971 | #endif |
1600 | #if EV_USE_POLL |
2972 | #if EV_USE_POLL |
1601 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2973 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1602 | #endif |
2974 | #endif |
1603 | #if EV_USE_SELECT |
2975 | #if EV_USE_SELECT |
1604 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2976 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1605 | #endif |
2977 | #endif |
1606 | |
2978 | |
1607 | ev_prepare_init (&pending_w, pendingcb); |
2979 | ev_prepare_init (&pending_w, pendingcb); |
1608 | |
2980 | |
|
|
2981 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1609 | ev_init (&pipe_w, pipecb); |
2982 | ev_init (&pipe_w, pipecb); |
1610 | ev_set_priority (&pipe_w, EV_MAXPRI); |
2983 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2984 | #endif |
1611 | } |
2985 | } |
1612 | } |
2986 | } |
1613 | |
2987 | |
1614 | /* free up a loop structure */ |
2988 | /* free up a loop structure */ |
1615 | static void noinline |
2989 | ecb_cold |
|
|
2990 | void |
1616 | loop_destroy (EV_P) |
2991 | ev_loop_destroy (EV_P) |
1617 | { |
2992 | { |
1618 | int i; |
2993 | int i; |
|
|
2994 | |
|
|
2995 | #if EV_MULTIPLICITY |
|
|
2996 | /* mimic free (0) */ |
|
|
2997 | if (!EV_A) |
|
|
2998 | return; |
|
|
2999 | #endif |
|
|
3000 | |
|
|
3001 | #if EV_CLEANUP_ENABLE |
|
|
3002 | /* queue cleanup watchers (and execute them) */ |
|
|
3003 | if (expect_false (cleanupcnt)) |
|
|
3004 | { |
|
|
3005 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3006 | EV_INVOKE_PENDING; |
|
|
3007 | } |
|
|
3008 | #endif |
|
|
3009 | |
|
|
3010 | #if EV_CHILD_ENABLE |
|
|
3011 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3012 | { |
|
|
3013 | ev_ref (EV_A); /* child watcher */ |
|
|
3014 | ev_signal_stop (EV_A_ &childev); |
|
|
3015 | } |
|
|
3016 | #endif |
1619 | |
3017 | |
1620 | if (ev_is_active (&pipe_w)) |
3018 | if (ev_is_active (&pipe_w)) |
1621 | { |
3019 | { |
1622 | /*ev_ref (EV_A);*/ |
3020 | /*ev_ref (EV_A);*/ |
1623 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3021 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1624 | |
3022 | |
1625 | #if EV_USE_EVENTFD |
|
|
1626 | if (evfd >= 0) |
|
|
1627 | close (evfd); |
|
|
1628 | #endif |
|
|
1629 | |
|
|
1630 | if (evpipe [0] >= 0) |
|
|
1631 | { |
|
|
1632 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3023 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1633 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3024 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1634 | } |
|
|
1635 | } |
3025 | } |
1636 | |
3026 | |
1637 | #if EV_USE_SIGNALFD |
3027 | #if EV_USE_SIGNALFD |
1638 | if (ev_is_active (&sigfd_w)) |
3028 | if (ev_is_active (&sigfd_w)) |
1639 | { |
|
|
1640 | /*ev_ref (EV_A);*/ |
|
|
1641 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1642 | |
|
|
1643 | close (sigfd); |
3029 | close (sigfd); |
1644 | } |
|
|
1645 | #endif |
3030 | #endif |
1646 | |
3031 | |
1647 | #if EV_USE_INOTIFY |
3032 | #if EV_USE_INOTIFY |
1648 | if (fs_fd >= 0) |
3033 | if (fs_fd >= 0) |
1649 | close (fs_fd); |
3034 | close (fs_fd); |
1650 | #endif |
3035 | #endif |
1651 | |
3036 | |
1652 | if (backend_fd >= 0) |
3037 | if (backend_fd >= 0) |
1653 | close (backend_fd); |
3038 | close (backend_fd); |
1654 | |
3039 | |
|
|
3040 | #if EV_USE_IOCP |
|
|
3041 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3042 | #endif |
1655 | #if EV_USE_PORT |
3043 | #if EV_USE_PORT |
1656 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3044 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1657 | #endif |
3045 | #endif |
1658 | #if EV_USE_KQUEUE |
3046 | #if EV_USE_KQUEUE |
1659 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3047 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3048 | #endif |
|
|
3049 | #if EV_USE_LINUXAIO |
|
|
3050 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1660 | #endif |
3051 | #endif |
1661 | #if EV_USE_EPOLL |
3052 | #if EV_USE_EPOLL |
1662 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3053 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1663 | #endif |
3054 | #endif |
1664 | #if EV_USE_POLL |
3055 | #if EV_USE_POLL |
1665 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3056 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1666 | #endif |
3057 | #endif |
1667 | #if EV_USE_SELECT |
3058 | #if EV_USE_SELECT |
1668 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3059 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1669 | #endif |
3060 | #endif |
1670 | |
3061 | |
1671 | for (i = NUMPRI; i--; ) |
3062 | for (i = NUMPRI; i--; ) |
1672 | { |
3063 | { |
1673 | array_free (pending, [i]); |
3064 | array_free (pending, [i]); |
… | |
… | |
1686 | array_free (periodic, EMPTY); |
3077 | array_free (periodic, EMPTY); |
1687 | #endif |
3078 | #endif |
1688 | #if EV_FORK_ENABLE |
3079 | #if EV_FORK_ENABLE |
1689 | array_free (fork, EMPTY); |
3080 | array_free (fork, EMPTY); |
1690 | #endif |
3081 | #endif |
|
|
3082 | #if EV_CLEANUP_ENABLE |
|
|
3083 | array_free (cleanup, EMPTY); |
|
|
3084 | #endif |
1691 | array_free (prepare, EMPTY); |
3085 | array_free (prepare, EMPTY); |
1692 | array_free (check, EMPTY); |
3086 | array_free (check, EMPTY); |
1693 | #if EV_ASYNC_ENABLE |
3087 | #if EV_ASYNC_ENABLE |
1694 | array_free (async, EMPTY); |
3088 | array_free (async, EMPTY); |
1695 | #endif |
3089 | #endif |
1696 | |
3090 | |
1697 | backend = 0; |
3091 | backend = 0; |
|
|
3092 | |
|
|
3093 | #if EV_MULTIPLICITY |
|
|
3094 | if (ev_is_default_loop (EV_A)) |
|
|
3095 | #endif |
|
|
3096 | ev_default_loop_ptr = 0; |
|
|
3097 | #if EV_MULTIPLICITY |
|
|
3098 | else |
|
|
3099 | ev_free (EV_A); |
|
|
3100 | #endif |
1698 | } |
3101 | } |
1699 | |
3102 | |
1700 | #if EV_USE_INOTIFY |
3103 | #if EV_USE_INOTIFY |
1701 | inline_size void infy_fork (EV_P); |
3104 | inline_size void infy_fork (EV_P); |
1702 | #endif |
3105 | #endif |
1703 | |
3106 | |
1704 | inline_size void |
3107 | inline_size void |
1705 | loop_fork (EV_P) |
3108 | loop_fork (EV_P) |
1706 | { |
3109 | { |
1707 | #if EV_USE_PORT |
3110 | #if EV_USE_PORT |
1708 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3111 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1709 | #endif |
3112 | #endif |
1710 | #if EV_USE_KQUEUE |
3113 | #if EV_USE_KQUEUE |
1711 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3114 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3115 | #endif |
|
|
3116 | #if EV_USE_LINUXAIO |
|
|
3117 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1712 | #endif |
3118 | #endif |
1713 | #if EV_USE_EPOLL |
3119 | #if EV_USE_EPOLL |
1714 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3120 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1715 | #endif |
3121 | #endif |
1716 | #if EV_USE_INOTIFY |
3122 | #if EV_USE_INOTIFY |
1717 | infy_fork (EV_A); |
3123 | infy_fork (EV_A); |
1718 | #endif |
3124 | #endif |
1719 | |
3125 | |
|
|
3126 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1720 | if (ev_is_active (&pipe_w)) |
3127 | if (ev_is_active (&pipe_w) && postfork != 2) |
1721 | { |
3128 | { |
1722 | /* this "locks" the handlers against writing to the pipe */ |
3129 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1723 | /* while we modify the fd vars */ |
|
|
1724 | sig_pending = 1; |
|
|
1725 | #if EV_ASYNC_ENABLE |
|
|
1726 | async_pending = 1; |
|
|
1727 | #endif |
|
|
1728 | |
3130 | |
1729 | ev_ref (EV_A); |
3131 | ev_ref (EV_A); |
1730 | ev_io_stop (EV_A_ &pipe_w); |
3132 | ev_io_stop (EV_A_ &pipe_w); |
1731 | |
3133 | |
1732 | #if EV_USE_EVENTFD |
|
|
1733 | if (evfd >= 0) |
|
|
1734 | close (evfd); |
|
|
1735 | #endif |
|
|
1736 | |
|
|
1737 | if (evpipe [0] >= 0) |
3134 | if (evpipe [0] >= 0) |
1738 | { |
|
|
1739 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3135 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1740 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1741 | } |
|
|
1742 | |
3136 | |
1743 | evpipe_init (EV_A); |
3137 | evpipe_init (EV_A); |
1744 | /* now iterate over everything, in case we missed something */ |
3138 | /* iterate over everything, in case we missed something before */ |
1745 | pipecb (EV_A_ &pipe_w, EV_READ); |
3139 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1746 | } |
3140 | } |
|
|
3141 | #endif |
1747 | |
3142 | |
1748 | postfork = 0; |
3143 | postfork = 0; |
1749 | } |
3144 | } |
1750 | |
3145 | |
1751 | #if EV_MULTIPLICITY |
3146 | #if EV_MULTIPLICITY |
1752 | |
3147 | |
|
|
3148 | ecb_cold |
1753 | struct ev_loop * |
3149 | struct ev_loop * |
1754 | ev_loop_new (unsigned int flags) |
3150 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1755 | { |
3151 | { |
1756 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3152 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1757 | |
3153 | |
1758 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3154 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1759 | loop_init (EV_A_ flags); |
3155 | loop_init (EV_A_ flags); |
1760 | |
3156 | |
1761 | if (ev_backend (EV_A)) |
3157 | if (ev_backend (EV_A)) |
1762 | return EV_A; |
3158 | return EV_A; |
1763 | |
3159 | |
|
|
3160 | ev_free (EV_A); |
1764 | return 0; |
3161 | return 0; |
1765 | } |
3162 | } |
1766 | |
3163 | |
1767 | void |
|
|
1768 | ev_loop_destroy (EV_P) |
|
|
1769 | { |
|
|
1770 | loop_destroy (EV_A); |
|
|
1771 | ev_free (loop); |
|
|
1772 | } |
|
|
1773 | |
|
|
1774 | void |
|
|
1775 | ev_loop_fork (EV_P) |
|
|
1776 | { |
|
|
1777 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1778 | } |
|
|
1779 | #endif /* multiplicity */ |
3164 | #endif /* multiplicity */ |
1780 | |
3165 | |
1781 | #if EV_VERIFY |
3166 | #if EV_VERIFY |
1782 | static void noinline |
3167 | noinline ecb_cold |
|
|
3168 | static void |
1783 | verify_watcher (EV_P_ W w) |
3169 | verify_watcher (EV_P_ W w) |
1784 | { |
3170 | { |
1785 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3171 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1786 | |
3172 | |
1787 | if (w->pending) |
3173 | if (w->pending) |
1788 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3174 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1789 | } |
3175 | } |
1790 | |
3176 | |
1791 | static void noinline |
3177 | noinline ecb_cold |
|
|
3178 | static void |
1792 | verify_heap (EV_P_ ANHE *heap, int N) |
3179 | verify_heap (EV_P_ ANHE *heap, int N) |
1793 | { |
3180 | { |
1794 | int i; |
3181 | int i; |
1795 | |
3182 | |
1796 | for (i = HEAP0; i < N + HEAP0; ++i) |
3183 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1801 | |
3188 | |
1802 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3189 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1803 | } |
3190 | } |
1804 | } |
3191 | } |
1805 | |
3192 | |
1806 | static void noinline |
3193 | noinline ecb_cold |
|
|
3194 | static void |
1807 | array_verify (EV_P_ W *ws, int cnt) |
3195 | array_verify (EV_P_ W *ws, int cnt) |
1808 | { |
3196 | { |
1809 | while (cnt--) |
3197 | while (cnt--) |
1810 | { |
3198 | { |
1811 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3199 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1812 | verify_watcher (EV_A_ ws [cnt]); |
3200 | verify_watcher (EV_A_ ws [cnt]); |
1813 | } |
3201 | } |
1814 | } |
3202 | } |
1815 | #endif |
3203 | #endif |
1816 | |
3204 | |
1817 | #if EV_MINIMAL < 2 |
3205 | #if EV_FEATURE_API |
1818 | void |
3206 | void ecb_cold |
1819 | ev_loop_verify (EV_P) |
3207 | ev_verify (EV_P) EV_NOEXCEPT |
1820 | { |
3208 | { |
1821 | #if EV_VERIFY |
3209 | #if EV_VERIFY |
1822 | int i; |
3210 | int i; |
1823 | WL w; |
3211 | WL w, w2; |
1824 | |
3212 | |
1825 | assert (activecnt >= -1); |
3213 | assert (activecnt >= -1); |
1826 | |
3214 | |
1827 | assert (fdchangemax >= fdchangecnt); |
3215 | assert (fdchangemax >= fdchangecnt); |
1828 | for (i = 0; i < fdchangecnt; ++i) |
3216 | for (i = 0; i < fdchangecnt; ++i) |
1829 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3217 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1830 | |
3218 | |
1831 | assert (anfdmax >= 0); |
3219 | assert (anfdmax >= 0); |
1832 | for (i = 0; i < anfdmax; ++i) |
3220 | for (i = 0; i < anfdmax; ++i) |
|
|
3221 | { |
|
|
3222 | int j = 0; |
|
|
3223 | |
1833 | for (w = anfds [i].head; w; w = w->next) |
3224 | for (w = w2 = anfds [i].head; w; w = w->next) |
1834 | { |
3225 | { |
1835 | verify_watcher (EV_A_ (W)w); |
3226 | verify_watcher (EV_A_ (W)w); |
|
|
3227 | |
|
|
3228 | if (j++ & 1) |
|
|
3229 | { |
|
|
3230 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3231 | w2 = w2->next; |
|
|
3232 | } |
|
|
3233 | |
1836 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3234 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1837 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3235 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1838 | } |
3236 | } |
|
|
3237 | } |
1839 | |
3238 | |
1840 | assert (timermax >= timercnt); |
3239 | assert (timermax >= timercnt); |
1841 | verify_heap (EV_A_ timers, timercnt); |
3240 | verify_heap (EV_A_ timers, timercnt); |
1842 | |
3241 | |
1843 | #if EV_PERIODIC_ENABLE |
3242 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1858 | #if EV_FORK_ENABLE |
3257 | #if EV_FORK_ENABLE |
1859 | assert (forkmax >= forkcnt); |
3258 | assert (forkmax >= forkcnt); |
1860 | array_verify (EV_A_ (W *)forks, forkcnt); |
3259 | array_verify (EV_A_ (W *)forks, forkcnt); |
1861 | #endif |
3260 | #endif |
1862 | |
3261 | |
|
|
3262 | #if EV_CLEANUP_ENABLE |
|
|
3263 | assert (cleanupmax >= cleanupcnt); |
|
|
3264 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3265 | #endif |
|
|
3266 | |
1863 | #if EV_ASYNC_ENABLE |
3267 | #if EV_ASYNC_ENABLE |
1864 | assert (asyncmax >= asynccnt); |
3268 | assert (asyncmax >= asynccnt); |
1865 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3269 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1866 | #endif |
3270 | #endif |
1867 | |
3271 | |
|
|
3272 | #if EV_PREPARE_ENABLE |
1868 | assert (preparemax >= preparecnt); |
3273 | assert (preparemax >= preparecnt); |
1869 | array_verify (EV_A_ (W *)prepares, preparecnt); |
3274 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
3275 | #endif |
1870 | |
3276 | |
|
|
3277 | #if EV_CHECK_ENABLE |
1871 | assert (checkmax >= checkcnt); |
3278 | assert (checkmax >= checkcnt); |
1872 | array_verify (EV_A_ (W *)checks, checkcnt); |
3279 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
3280 | #endif |
1873 | |
3281 | |
1874 | # if 0 |
3282 | # if 0 |
|
|
3283 | #if EV_CHILD_ENABLE |
1875 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
3284 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1876 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
3285 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3286 | #endif |
1877 | # endif |
3287 | # endif |
1878 | #endif |
3288 | #endif |
1879 | } |
3289 | } |
1880 | #endif |
3290 | #endif |
1881 | |
3291 | |
1882 | #if EV_MULTIPLICITY |
3292 | #if EV_MULTIPLICITY |
|
|
3293 | ecb_cold |
1883 | struct ev_loop * |
3294 | struct ev_loop * |
1884 | ev_default_loop_init (unsigned int flags) |
|
|
1885 | #else |
3295 | #else |
1886 | int |
3296 | int |
|
|
3297 | #endif |
1887 | ev_default_loop (unsigned int flags) |
3298 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1888 | #endif |
|
|
1889 | { |
3299 | { |
1890 | if (!ev_default_loop_ptr) |
3300 | if (!ev_default_loop_ptr) |
1891 | { |
3301 | { |
1892 | #if EV_MULTIPLICITY |
3302 | #if EV_MULTIPLICITY |
1893 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3303 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1897 | |
3307 | |
1898 | loop_init (EV_A_ flags); |
3308 | loop_init (EV_A_ flags); |
1899 | |
3309 | |
1900 | if (ev_backend (EV_A)) |
3310 | if (ev_backend (EV_A)) |
1901 | { |
3311 | { |
1902 | #ifndef _WIN32 |
3312 | #if EV_CHILD_ENABLE |
1903 | ev_signal_init (&childev, childcb, SIGCHLD); |
3313 | ev_signal_init (&childev, childcb, SIGCHLD); |
1904 | ev_set_priority (&childev, EV_MAXPRI); |
3314 | ev_set_priority (&childev, EV_MAXPRI); |
1905 | ev_signal_start (EV_A_ &childev); |
3315 | ev_signal_start (EV_A_ &childev); |
1906 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3316 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1907 | #endif |
3317 | #endif |
… | |
… | |
1912 | |
3322 | |
1913 | return ev_default_loop_ptr; |
3323 | return ev_default_loop_ptr; |
1914 | } |
3324 | } |
1915 | |
3325 | |
1916 | void |
3326 | void |
1917 | ev_default_destroy (void) |
3327 | ev_loop_fork (EV_P) EV_NOEXCEPT |
1918 | { |
3328 | { |
1919 | #if EV_MULTIPLICITY |
3329 | postfork = 1; |
1920 | EV_P = ev_default_loop_ptr; |
|
|
1921 | #endif |
|
|
1922 | |
|
|
1923 | ev_default_loop_ptr = 0; |
|
|
1924 | |
|
|
1925 | #ifndef _WIN32 |
|
|
1926 | ev_ref (EV_A); /* child watcher */ |
|
|
1927 | ev_signal_stop (EV_A_ &childev); |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | loop_destroy (EV_A); |
|
|
1931 | } |
|
|
1932 | |
|
|
1933 | void |
|
|
1934 | ev_default_fork (void) |
|
|
1935 | { |
|
|
1936 | #if EV_MULTIPLICITY |
|
|
1937 | EV_P = ev_default_loop_ptr; |
|
|
1938 | #endif |
|
|
1939 | |
|
|
1940 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1941 | } |
3330 | } |
1942 | |
3331 | |
1943 | /*****************************************************************************/ |
3332 | /*****************************************************************************/ |
1944 | |
3333 | |
1945 | void |
3334 | void |
… | |
… | |
1947 | { |
3336 | { |
1948 | EV_CB_INVOKE ((W)w, revents); |
3337 | EV_CB_INVOKE ((W)w, revents); |
1949 | } |
3338 | } |
1950 | |
3339 | |
1951 | unsigned int |
3340 | unsigned int |
1952 | ev_pending_count (EV_P) |
3341 | ev_pending_count (EV_P) EV_NOEXCEPT |
1953 | { |
3342 | { |
1954 | int pri; |
3343 | int pri; |
1955 | unsigned int count = 0; |
3344 | unsigned int count = 0; |
1956 | |
3345 | |
1957 | for (pri = NUMPRI; pri--; ) |
3346 | for (pri = NUMPRI; pri--; ) |
1958 | count += pendingcnt [pri]; |
3347 | count += pendingcnt [pri]; |
1959 | |
3348 | |
1960 | return count; |
3349 | return count; |
1961 | } |
3350 | } |
1962 | |
3351 | |
1963 | void noinline |
3352 | noinline |
|
|
3353 | void |
1964 | ev_invoke_pending (EV_P) |
3354 | ev_invoke_pending (EV_P) |
1965 | { |
3355 | { |
1966 | int pri; |
3356 | pendingpri = NUMPRI; |
1967 | |
3357 | |
1968 | for (pri = NUMPRI; pri--; ) |
3358 | do |
|
|
3359 | { |
|
|
3360 | --pendingpri; |
|
|
3361 | |
|
|
3362 | /* pendingpri possibly gets modified in the inner loop */ |
1969 | while (pendingcnt [pri]) |
3363 | while (pendingcnt [pendingpri]) |
1970 | { |
3364 | { |
1971 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3365 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1972 | |
3366 | |
1973 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1974 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1975 | |
|
|
1976 | p->w->pending = 0; |
3367 | p->w->pending = 0; |
1977 | EV_CB_INVOKE (p->w, p->events); |
3368 | EV_CB_INVOKE (p->w, p->events); |
1978 | EV_FREQUENT_CHECK; |
3369 | EV_FREQUENT_CHECK; |
1979 | } |
3370 | } |
|
|
3371 | } |
|
|
3372 | while (pendingpri); |
1980 | } |
3373 | } |
1981 | |
3374 | |
1982 | #if EV_IDLE_ENABLE |
3375 | #if EV_IDLE_ENABLE |
1983 | /* make idle watchers pending. this handles the "call-idle */ |
3376 | /* make idle watchers pending. this handles the "call-idle */ |
1984 | /* only when higher priorities are idle" logic */ |
3377 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2036 | EV_FREQUENT_CHECK; |
3429 | EV_FREQUENT_CHECK; |
2037 | feed_reverse (EV_A_ (W)w); |
3430 | feed_reverse (EV_A_ (W)w); |
2038 | } |
3431 | } |
2039 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3432 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2040 | |
3433 | |
2041 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3434 | feed_reverse_done (EV_A_ EV_TIMER); |
2042 | } |
3435 | } |
2043 | } |
3436 | } |
2044 | |
3437 | |
2045 | #if EV_PERIODIC_ENABLE |
3438 | #if EV_PERIODIC_ENABLE |
|
|
3439 | |
|
|
3440 | noinline |
|
|
3441 | static void |
|
|
3442 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3443 | { |
|
|
3444 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3445 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3446 | |
|
|
3447 | /* the above almost always errs on the low side */ |
|
|
3448 | while (at <= ev_rt_now) |
|
|
3449 | { |
|
|
3450 | ev_tstamp nat = at + w->interval; |
|
|
3451 | |
|
|
3452 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3453 | if (expect_false (nat == at)) |
|
|
3454 | { |
|
|
3455 | at = ev_rt_now; |
|
|
3456 | break; |
|
|
3457 | } |
|
|
3458 | |
|
|
3459 | at = nat; |
|
|
3460 | } |
|
|
3461 | |
|
|
3462 | ev_at (w) = at; |
|
|
3463 | } |
|
|
3464 | |
2046 | /* make periodics pending */ |
3465 | /* make periodics pending */ |
2047 | inline_size void |
3466 | inline_size void |
2048 | periodics_reify (EV_P) |
3467 | periodics_reify (EV_P) |
2049 | { |
3468 | { |
2050 | EV_FREQUENT_CHECK; |
3469 | EV_FREQUENT_CHECK; |
2051 | |
3470 | |
2052 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3471 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2053 | { |
3472 | { |
2054 | int feed_count = 0; |
|
|
2055 | |
|
|
2056 | do |
3473 | do |
2057 | { |
3474 | { |
2058 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3475 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2059 | |
3476 | |
2060 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3477 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2069 | ANHE_at_cache (periodics [HEAP0]); |
3486 | ANHE_at_cache (periodics [HEAP0]); |
2070 | downheap (periodics, periodiccnt, HEAP0); |
3487 | downheap (periodics, periodiccnt, HEAP0); |
2071 | } |
3488 | } |
2072 | else if (w->interval) |
3489 | else if (w->interval) |
2073 | { |
3490 | { |
2074 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3491 | periodic_recalc (EV_A_ w); |
2075 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2076 | /* this might happen because of floating point inexactness */ |
|
|
2077 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2078 | { |
|
|
2079 | ev_at (w) += w->interval; |
|
|
2080 | |
|
|
2081 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2082 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2083 | /* has effectively asked to get triggered more often than possible */ |
|
|
2084 | if (ev_at (w) < ev_rt_now) |
|
|
2085 | ev_at (w) = ev_rt_now; |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | ANHE_at_cache (periodics [HEAP0]); |
3492 | ANHE_at_cache (periodics [HEAP0]); |
2089 | downheap (periodics, periodiccnt, HEAP0); |
3493 | downheap (periodics, periodiccnt, HEAP0); |
2090 | } |
3494 | } |
2091 | else |
3495 | else |
2092 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3496 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2099 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3503 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2100 | } |
3504 | } |
2101 | } |
3505 | } |
2102 | |
3506 | |
2103 | /* simply recalculate all periodics */ |
3507 | /* simply recalculate all periodics */ |
2104 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3508 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2105 | static void noinline |
3509 | noinline ecb_cold |
|
|
3510 | static void |
2106 | periodics_reschedule (EV_P) |
3511 | periodics_reschedule (EV_P) |
2107 | { |
3512 | { |
2108 | int i; |
3513 | int i; |
2109 | |
3514 | |
2110 | /* adjust periodics after time jump */ |
3515 | /* adjust periodics after time jump */ |
… | |
… | |
2113 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3518 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2114 | |
3519 | |
2115 | if (w->reschedule_cb) |
3520 | if (w->reschedule_cb) |
2116 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3521 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2117 | else if (w->interval) |
3522 | else if (w->interval) |
2118 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3523 | periodic_recalc (EV_A_ w); |
2119 | |
3524 | |
2120 | ANHE_at_cache (periodics [i]); |
3525 | ANHE_at_cache (periodics [i]); |
2121 | } |
3526 | } |
2122 | |
3527 | |
2123 | reheap (periodics, periodiccnt); |
3528 | reheap (periodics, periodiccnt); |
2124 | } |
3529 | } |
2125 | #endif |
3530 | #endif |
2126 | |
3531 | |
2127 | /* adjust all timers by a given offset */ |
3532 | /* adjust all timers by a given offset */ |
2128 | static void noinline |
3533 | noinline ecb_cold |
|
|
3534 | static void |
2129 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3535 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2130 | { |
3536 | { |
2131 | int i; |
3537 | int i; |
2132 | |
3538 | |
2133 | for (i = 0; i < timercnt; ++i) |
3539 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2137 | ANHE_at_cache (*he); |
3543 | ANHE_at_cache (*he); |
2138 | } |
3544 | } |
2139 | } |
3545 | } |
2140 | |
3546 | |
2141 | /* fetch new monotonic and realtime times from the kernel */ |
3547 | /* fetch new monotonic and realtime times from the kernel */ |
2142 | /* also detetc if there was a timejump, and act accordingly */ |
3548 | /* also detect if there was a timejump, and act accordingly */ |
2143 | inline_speed void |
3549 | inline_speed void |
2144 | time_update (EV_P_ ev_tstamp max_block) |
3550 | time_update (EV_P_ ev_tstamp max_block) |
2145 | { |
3551 | { |
2146 | #if EV_USE_MONOTONIC |
3552 | #if EV_USE_MONOTONIC |
2147 | if (expect_true (have_monotonic)) |
3553 | if (expect_true (have_monotonic)) |
… | |
… | |
2170 | * doesn't hurt either as we only do this on time-jumps or |
3576 | * doesn't hurt either as we only do this on time-jumps or |
2171 | * in the unlikely event of having been preempted here. |
3577 | * in the unlikely event of having been preempted here. |
2172 | */ |
3578 | */ |
2173 | for (i = 4; --i; ) |
3579 | for (i = 4; --i; ) |
2174 | { |
3580 | { |
|
|
3581 | ev_tstamp diff; |
2175 | rtmn_diff = ev_rt_now - mn_now; |
3582 | rtmn_diff = ev_rt_now - mn_now; |
2176 | |
3583 | |
|
|
3584 | diff = odiff - rtmn_diff; |
|
|
3585 | |
2177 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3586 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2178 | return; /* all is well */ |
3587 | return; /* all is well */ |
2179 | |
3588 | |
2180 | ev_rt_now = ev_time (); |
3589 | ev_rt_now = ev_time (); |
2181 | mn_now = get_clock (); |
3590 | mn_now = get_clock (); |
2182 | now_floor = mn_now; |
3591 | now_floor = mn_now; |
… | |
… | |
2204 | |
3613 | |
2205 | mn_now = ev_rt_now; |
3614 | mn_now = ev_rt_now; |
2206 | } |
3615 | } |
2207 | } |
3616 | } |
2208 | |
3617 | |
2209 | void |
3618 | int |
2210 | ev_loop (EV_P_ int flags) |
3619 | ev_run (EV_P_ int flags) |
2211 | { |
3620 | { |
2212 | #if EV_MINIMAL < 2 |
3621 | #if EV_FEATURE_API |
2213 | ++loop_depth; |
3622 | ++loop_depth; |
2214 | #endif |
3623 | #endif |
2215 | |
3624 | |
2216 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3625 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2217 | |
3626 | |
2218 | loop_done = EVUNLOOP_CANCEL; |
3627 | loop_done = EVBREAK_CANCEL; |
2219 | |
3628 | |
2220 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3629 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2221 | |
3630 | |
2222 | do |
3631 | do |
2223 | { |
3632 | { |
2224 | #if EV_VERIFY >= 2 |
3633 | #if EV_VERIFY >= 2 |
2225 | ev_loop_verify (EV_A); |
3634 | ev_verify (EV_A); |
2226 | #endif |
3635 | #endif |
2227 | |
3636 | |
2228 | #ifndef _WIN32 |
3637 | #ifndef _WIN32 |
2229 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3638 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2230 | if (expect_false (getpid () != curpid)) |
3639 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2242 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3651 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2243 | EV_INVOKE_PENDING; |
3652 | EV_INVOKE_PENDING; |
2244 | } |
3653 | } |
2245 | #endif |
3654 | #endif |
2246 | |
3655 | |
|
|
3656 | #if EV_PREPARE_ENABLE |
2247 | /* queue prepare watchers (and execute them) */ |
3657 | /* queue prepare watchers (and execute them) */ |
2248 | if (expect_false (preparecnt)) |
3658 | if (expect_false (preparecnt)) |
2249 | { |
3659 | { |
2250 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3660 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2251 | EV_INVOKE_PENDING; |
3661 | EV_INVOKE_PENDING; |
2252 | } |
3662 | } |
|
|
3663 | #endif |
2253 | |
3664 | |
2254 | if (expect_false (loop_done)) |
3665 | if (expect_false (loop_done)) |
2255 | break; |
3666 | break; |
2256 | |
3667 | |
2257 | /* we might have forked, so reify kernel state if necessary */ |
3668 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2264 | /* calculate blocking time */ |
3675 | /* calculate blocking time */ |
2265 | { |
3676 | { |
2266 | ev_tstamp waittime = 0.; |
3677 | ev_tstamp waittime = 0.; |
2267 | ev_tstamp sleeptime = 0.; |
3678 | ev_tstamp sleeptime = 0.; |
2268 | |
3679 | |
|
|
3680 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3681 | ev_tstamp prev_mn_now = mn_now; |
|
|
3682 | |
|
|
3683 | /* update time to cancel out callback processing overhead */ |
|
|
3684 | time_update (EV_A_ 1e100); |
|
|
3685 | |
|
|
3686 | /* from now on, we want a pipe-wake-up */ |
|
|
3687 | pipe_write_wanted = 1; |
|
|
3688 | |
|
|
3689 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3690 | |
2269 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3691 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2270 | { |
3692 | { |
2271 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2272 | ev_tstamp prev_mn_now = mn_now; |
|
|
2273 | |
|
|
2274 | /* update time to cancel out callback processing overhead */ |
|
|
2275 | time_update (EV_A_ 1e100); |
|
|
2276 | |
|
|
2277 | waittime = MAX_BLOCKTIME; |
3693 | waittime = MAX_BLOCKTIME; |
2278 | |
3694 | |
2279 | if (timercnt) |
3695 | if (timercnt) |
2280 | { |
3696 | { |
2281 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3697 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2282 | if (waittime > to) waittime = to; |
3698 | if (waittime > to) waittime = to; |
2283 | } |
3699 | } |
2284 | |
3700 | |
2285 | #if EV_PERIODIC_ENABLE |
3701 | #if EV_PERIODIC_ENABLE |
2286 | if (periodiccnt) |
3702 | if (periodiccnt) |
2287 | { |
3703 | { |
2288 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3704 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2289 | if (waittime > to) waittime = to; |
3705 | if (waittime > to) waittime = to; |
2290 | } |
3706 | } |
2291 | #endif |
3707 | #endif |
2292 | |
3708 | |
2293 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3709 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2294 | if (expect_false (waittime < timeout_blocktime)) |
3710 | if (expect_false (waittime < timeout_blocktime)) |
2295 | waittime = timeout_blocktime; |
3711 | waittime = timeout_blocktime; |
|
|
3712 | |
|
|
3713 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3714 | /* to pass a minimum nonzero value to the backend */ |
|
|
3715 | if (expect_false (waittime < backend_mintime)) |
|
|
3716 | waittime = backend_mintime; |
2296 | |
3717 | |
2297 | /* extra check because io_blocktime is commonly 0 */ |
3718 | /* extra check because io_blocktime is commonly 0 */ |
2298 | if (expect_false (io_blocktime)) |
3719 | if (expect_false (io_blocktime)) |
2299 | { |
3720 | { |
2300 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3721 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2301 | |
3722 | |
2302 | if (sleeptime > waittime - backend_fudge) |
3723 | if (sleeptime > waittime - backend_mintime) |
2303 | sleeptime = waittime - backend_fudge; |
3724 | sleeptime = waittime - backend_mintime; |
2304 | |
3725 | |
2305 | if (expect_true (sleeptime > 0.)) |
3726 | if (expect_true (sleeptime > 0.)) |
2306 | { |
3727 | { |
2307 | ev_sleep (sleeptime); |
3728 | ev_sleep (sleeptime); |
2308 | waittime -= sleeptime; |
3729 | waittime -= sleeptime; |
2309 | } |
3730 | } |
2310 | } |
3731 | } |
2311 | } |
3732 | } |
2312 | |
3733 | |
2313 | #if EV_MINIMAL < 2 |
3734 | #if EV_FEATURE_API |
2314 | ++loop_count; |
3735 | ++loop_count; |
2315 | #endif |
3736 | #endif |
2316 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3737 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2317 | backend_poll (EV_A_ waittime); |
3738 | backend_poll (EV_A_ waittime); |
2318 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3739 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3740 | |
|
|
3741 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3742 | |
|
|
3743 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3744 | if (pipe_write_skipped) |
|
|
3745 | { |
|
|
3746 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3747 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3748 | } |
|
|
3749 | |
2319 | |
3750 | |
2320 | /* update ev_rt_now, do magic */ |
3751 | /* update ev_rt_now, do magic */ |
2321 | time_update (EV_A_ waittime + sleeptime); |
3752 | time_update (EV_A_ waittime + sleeptime); |
2322 | } |
3753 | } |
2323 | |
3754 | |
… | |
… | |
2330 | #if EV_IDLE_ENABLE |
3761 | #if EV_IDLE_ENABLE |
2331 | /* queue idle watchers unless other events are pending */ |
3762 | /* queue idle watchers unless other events are pending */ |
2332 | idle_reify (EV_A); |
3763 | idle_reify (EV_A); |
2333 | #endif |
3764 | #endif |
2334 | |
3765 | |
|
|
3766 | #if EV_CHECK_ENABLE |
2335 | /* queue check watchers, to be executed first */ |
3767 | /* queue check watchers, to be executed first */ |
2336 | if (expect_false (checkcnt)) |
3768 | if (expect_false (checkcnt)) |
2337 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3769 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3770 | #endif |
2338 | |
3771 | |
2339 | EV_INVOKE_PENDING; |
3772 | EV_INVOKE_PENDING; |
2340 | } |
3773 | } |
2341 | while (expect_true ( |
3774 | while (expect_true ( |
2342 | activecnt |
3775 | activecnt |
2343 | && !loop_done |
3776 | && !loop_done |
2344 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3777 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2345 | )); |
3778 | )); |
2346 | |
3779 | |
2347 | if (loop_done == EVUNLOOP_ONE) |
3780 | if (loop_done == EVBREAK_ONE) |
2348 | loop_done = EVUNLOOP_CANCEL; |
3781 | loop_done = EVBREAK_CANCEL; |
2349 | |
3782 | |
2350 | #if EV_MINIMAL < 2 |
3783 | #if EV_FEATURE_API |
2351 | --loop_depth; |
3784 | --loop_depth; |
2352 | #endif |
3785 | #endif |
2353 | } |
|
|
2354 | |
3786 | |
|
|
3787 | return activecnt; |
|
|
3788 | } |
|
|
3789 | |
2355 | void |
3790 | void |
2356 | ev_unloop (EV_P_ int how) |
3791 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2357 | { |
3792 | { |
2358 | loop_done = how; |
3793 | loop_done = how; |
2359 | } |
3794 | } |
2360 | |
3795 | |
2361 | void |
3796 | void |
2362 | ev_ref (EV_P) |
3797 | ev_ref (EV_P) EV_NOEXCEPT |
2363 | { |
3798 | { |
2364 | ++activecnt; |
3799 | ++activecnt; |
2365 | } |
3800 | } |
2366 | |
3801 | |
2367 | void |
3802 | void |
2368 | ev_unref (EV_P) |
3803 | ev_unref (EV_P) EV_NOEXCEPT |
2369 | { |
3804 | { |
2370 | --activecnt; |
3805 | --activecnt; |
2371 | } |
3806 | } |
2372 | |
3807 | |
2373 | void |
3808 | void |
2374 | ev_now_update (EV_P) |
3809 | ev_now_update (EV_P) EV_NOEXCEPT |
2375 | { |
3810 | { |
2376 | time_update (EV_A_ 1e100); |
3811 | time_update (EV_A_ 1e100); |
2377 | } |
3812 | } |
2378 | |
3813 | |
2379 | void |
3814 | void |
2380 | ev_suspend (EV_P) |
3815 | ev_suspend (EV_P) EV_NOEXCEPT |
2381 | { |
3816 | { |
2382 | ev_now_update (EV_A); |
3817 | ev_now_update (EV_A); |
2383 | } |
3818 | } |
2384 | |
3819 | |
2385 | void |
3820 | void |
2386 | ev_resume (EV_P) |
3821 | ev_resume (EV_P) EV_NOEXCEPT |
2387 | { |
3822 | { |
2388 | ev_tstamp mn_prev = mn_now; |
3823 | ev_tstamp mn_prev = mn_now; |
2389 | |
3824 | |
2390 | ev_now_update (EV_A); |
3825 | ev_now_update (EV_A); |
2391 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3826 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2430 | w->pending = 0; |
3865 | w->pending = 0; |
2431 | } |
3866 | } |
2432 | } |
3867 | } |
2433 | |
3868 | |
2434 | int |
3869 | int |
2435 | ev_clear_pending (EV_P_ void *w) |
3870 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2436 | { |
3871 | { |
2437 | W w_ = (W)w; |
3872 | W w_ = (W)w; |
2438 | int pending = w_->pending; |
3873 | int pending = w_->pending; |
2439 | |
3874 | |
2440 | if (expect_true (pending)) |
3875 | if (expect_true (pending)) |
… | |
… | |
2472 | w->active = 0; |
3907 | w->active = 0; |
2473 | } |
3908 | } |
2474 | |
3909 | |
2475 | /*****************************************************************************/ |
3910 | /*****************************************************************************/ |
2476 | |
3911 | |
2477 | void noinline |
3912 | noinline |
|
|
3913 | void |
2478 | ev_io_start (EV_P_ ev_io *w) |
3914 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2479 | { |
3915 | { |
2480 | int fd = w->fd; |
3916 | int fd = w->fd; |
2481 | |
3917 | |
2482 | if (expect_false (ev_is_active (w))) |
3918 | if (expect_false (ev_is_active (w))) |
2483 | return; |
3919 | return; |
2484 | |
3920 | |
2485 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3921 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2486 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3922 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2487 | |
3923 | |
2488 | EV_FREQUENT_CHECK; |
3924 | EV_FREQUENT_CHECK; |
2489 | |
3925 | |
2490 | ev_start (EV_A_ (W)w, 1); |
3926 | ev_start (EV_A_ (W)w, 1); |
2491 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3927 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2492 | wlist_add (&anfds[fd].head, (WL)w); |
3928 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
3929 | |
|
|
3930 | /* common bug, apparently */ |
|
|
3931 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2493 | |
3932 | |
2494 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3933 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2495 | w->events &= ~EV__IOFDSET; |
3934 | w->events &= ~EV__IOFDSET; |
2496 | |
3935 | |
2497 | EV_FREQUENT_CHECK; |
3936 | EV_FREQUENT_CHECK; |
2498 | } |
3937 | } |
2499 | |
3938 | |
2500 | void noinline |
3939 | noinline |
|
|
3940 | void |
2501 | ev_io_stop (EV_P_ ev_io *w) |
3941 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2502 | { |
3942 | { |
2503 | clear_pending (EV_A_ (W)w); |
3943 | clear_pending (EV_A_ (W)w); |
2504 | if (expect_false (!ev_is_active (w))) |
3944 | if (expect_false (!ev_is_active (w))) |
2505 | return; |
3945 | return; |
2506 | |
3946 | |
… | |
… | |
2509 | EV_FREQUENT_CHECK; |
3949 | EV_FREQUENT_CHECK; |
2510 | |
3950 | |
2511 | wlist_del (&anfds[w->fd].head, (WL)w); |
3951 | wlist_del (&anfds[w->fd].head, (WL)w); |
2512 | ev_stop (EV_A_ (W)w); |
3952 | ev_stop (EV_A_ (W)w); |
2513 | |
3953 | |
2514 | fd_change (EV_A_ w->fd, 1); |
3954 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2515 | |
3955 | |
2516 | EV_FREQUENT_CHECK; |
3956 | EV_FREQUENT_CHECK; |
2517 | } |
3957 | } |
2518 | |
3958 | |
2519 | void noinline |
3959 | noinline |
|
|
3960 | void |
2520 | ev_timer_start (EV_P_ ev_timer *w) |
3961 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2521 | { |
3962 | { |
2522 | if (expect_false (ev_is_active (w))) |
3963 | if (expect_false (ev_is_active (w))) |
2523 | return; |
3964 | return; |
2524 | |
3965 | |
2525 | ev_at (w) += mn_now; |
3966 | ev_at (w) += mn_now; |
… | |
… | |
2528 | |
3969 | |
2529 | EV_FREQUENT_CHECK; |
3970 | EV_FREQUENT_CHECK; |
2530 | |
3971 | |
2531 | ++timercnt; |
3972 | ++timercnt; |
2532 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3973 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2533 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
3974 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2534 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3975 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2535 | ANHE_at_cache (timers [ev_active (w)]); |
3976 | ANHE_at_cache (timers [ev_active (w)]); |
2536 | upheap (timers, ev_active (w)); |
3977 | upheap (timers, ev_active (w)); |
2537 | |
3978 | |
2538 | EV_FREQUENT_CHECK; |
3979 | EV_FREQUENT_CHECK; |
2539 | |
3980 | |
2540 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3981 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2541 | } |
3982 | } |
2542 | |
3983 | |
2543 | void noinline |
3984 | noinline |
|
|
3985 | void |
2544 | ev_timer_stop (EV_P_ ev_timer *w) |
3986 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2545 | { |
3987 | { |
2546 | clear_pending (EV_A_ (W)w); |
3988 | clear_pending (EV_A_ (W)w); |
2547 | if (expect_false (!ev_is_active (w))) |
3989 | if (expect_false (!ev_is_active (w))) |
2548 | return; |
3990 | return; |
2549 | |
3991 | |
… | |
… | |
2561 | timers [active] = timers [timercnt + HEAP0]; |
4003 | timers [active] = timers [timercnt + HEAP0]; |
2562 | adjustheap (timers, timercnt, active); |
4004 | adjustheap (timers, timercnt, active); |
2563 | } |
4005 | } |
2564 | } |
4006 | } |
2565 | |
4007 | |
2566 | EV_FREQUENT_CHECK; |
|
|
2567 | |
|
|
2568 | ev_at (w) -= mn_now; |
4008 | ev_at (w) -= mn_now; |
2569 | |
4009 | |
2570 | ev_stop (EV_A_ (W)w); |
4010 | ev_stop (EV_A_ (W)w); |
2571 | } |
|
|
2572 | |
4011 | |
|
|
4012 | EV_FREQUENT_CHECK; |
|
|
4013 | } |
|
|
4014 | |
2573 | void noinline |
4015 | noinline |
|
|
4016 | void |
2574 | ev_timer_again (EV_P_ ev_timer *w) |
4017 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2575 | { |
4018 | { |
2576 | EV_FREQUENT_CHECK; |
4019 | EV_FREQUENT_CHECK; |
|
|
4020 | |
|
|
4021 | clear_pending (EV_A_ (W)w); |
2577 | |
4022 | |
2578 | if (ev_is_active (w)) |
4023 | if (ev_is_active (w)) |
2579 | { |
4024 | { |
2580 | if (w->repeat) |
4025 | if (w->repeat) |
2581 | { |
4026 | { |
… | |
… | |
2594 | |
4039 | |
2595 | EV_FREQUENT_CHECK; |
4040 | EV_FREQUENT_CHECK; |
2596 | } |
4041 | } |
2597 | |
4042 | |
2598 | ev_tstamp |
4043 | ev_tstamp |
2599 | ev_timer_remaining (EV_P_ ev_timer *w) |
4044 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2600 | { |
4045 | { |
2601 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4046 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2602 | } |
4047 | } |
2603 | |
4048 | |
2604 | #if EV_PERIODIC_ENABLE |
4049 | #if EV_PERIODIC_ENABLE |
2605 | void noinline |
4050 | noinline |
|
|
4051 | void |
2606 | ev_periodic_start (EV_P_ ev_periodic *w) |
4052 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2607 | { |
4053 | { |
2608 | if (expect_false (ev_is_active (w))) |
4054 | if (expect_false (ev_is_active (w))) |
2609 | return; |
4055 | return; |
2610 | |
4056 | |
2611 | if (w->reschedule_cb) |
4057 | if (w->reschedule_cb) |
2612 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4058 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2613 | else if (w->interval) |
4059 | else if (w->interval) |
2614 | { |
4060 | { |
2615 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4061 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2616 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4062 | periodic_recalc (EV_A_ w); |
2617 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2618 | } |
4063 | } |
2619 | else |
4064 | else |
2620 | ev_at (w) = w->offset; |
4065 | ev_at (w) = w->offset; |
2621 | |
4066 | |
2622 | EV_FREQUENT_CHECK; |
4067 | EV_FREQUENT_CHECK; |
2623 | |
4068 | |
2624 | ++periodiccnt; |
4069 | ++periodiccnt; |
2625 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4070 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2626 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4071 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2627 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4072 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2628 | ANHE_at_cache (periodics [ev_active (w)]); |
4073 | ANHE_at_cache (periodics [ev_active (w)]); |
2629 | upheap (periodics, ev_active (w)); |
4074 | upheap (periodics, ev_active (w)); |
2630 | |
4075 | |
2631 | EV_FREQUENT_CHECK; |
4076 | EV_FREQUENT_CHECK; |
2632 | |
4077 | |
2633 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4078 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2634 | } |
4079 | } |
2635 | |
4080 | |
2636 | void noinline |
4081 | noinline |
|
|
4082 | void |
2637 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4083 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2638 | { |
4084 | { |
2639 | clear_pending (EV_A_ (W)w); |
4085 | clear_pending (EV_A_ (W)w); |
2640 | if (expect_false (!ev_is_active (w))) |
4086 | if (expect_false (!ev_is_active (w))) |
2641 | return; |
4087 | return; |
2642 | |
4088 | |
… | |
… | |
2654 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4100 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2655 | adjustheap (periodics, periodiccnt, active); |
4101 | adjustheap (periodics, periodiccnt, active); |
2656 | } |
4102 | } |
2657 | } |
4103 | } |
2658 | |
4104 | |
2659 | EV_FREQUENT_CHECK; |
|
|
2660 | |
|
|
2661 | ev_stop (EV_A_ (W)w); |
4105 | ev_stop (EV_A_ (W)w); |
2662 | } |
|
|
2663 | |
4106 | |
|
|
4107 | EV_FREQUENT_CHECK; |
|
|
4108 | } |
|
|
4109 | |
2664 | void noinline |
4110 | noinline |
|
|
4111 | void |
2665 | ev_periodic_again (EV_P_ ev_periodic *w) |
4112 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2666 | { |
4113 | { |
2667 | /* TODO: use adjustheap and recalculation */ |
4114 | /* TODO: use adjustheap and recalculation */ |
2668 | ev_periodic_stop (EV_A_ w); |
4115 | ev_periodic_stop (EV_A_ w); |
2669 | ev_periodic_start (EV_A_ w); |
4116 | ev_periodic_start (EV_A_ w); |
2670 | } |
4117 | } |
… | |
… | |
2672 | |
4119 | |
2673 | #ifndef SA_RESTART |
4120 | #ifndef SA_RESTART |
2674 | # define SA_RESTART 0 |
4121 | # define SA_RESTART 0 |
2675 | #endif |
4122 | #endif |
2676 | |
4123 | |
|
|
4124 | #if EV_SIGNAL_ENABLE |
|
|
4125 | |
2677 | void noinline |
4126 | noinline |
|
|
4127 | void |
2678 | ev_signal_start (EV_P_ ev_signal *w) |
4128 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2679 | { |
4129 | { |
2680 | if (expect_false (ev_is_active (w))) |
4130 | if (expect_false (ev_is_active (w))) |
2681 | return; |
4131 | return; |
2682 | |
4132 | |
2683 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4133 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2685 | #if EV_MULTIPLICITY |
4135 | #if EV_MULTIPLICITY |
2686 | assert (("libev: a signal must not be attached to two different loops", |
4136 | assert (("libev: a signal must not be attached to two different loops", |
2687 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4137 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2688 | |
4138 | |
2689 | signals [w->signum - 1].loop = EV_A; |
4139 | signals [w->signum - 1].loop = EV_A; |
|
|
4140 | ECB_MEMORY_FENCE_RELEASE; |
2690 | #endif |
4141 | #endif |
2691 | |
4142 | |
2692 | EV_FREQUENT_CHECK; |
4143 | EV_FREQUENT_CHECK; |
2693 | |
4144 | |
2694 | #if EV_USE_SIGNALFD |
4145 | #if EV_USE_SIGNALFD |
… | |
… | |
2727 | if (!((WL)w)->next) |
4178 | if (!((WL)w)->next) |
2728 | # if EV_USE_SIGNALFD |
4179 | # if EV_USE_SIGNALFD |
2729 | if (sigfd < 0) /*TODO*/ |
4180 | if (sigfd < 0) /*TODO*/ |
2730 | # endif |
4181 | # endif |
2731 | { |
4182 | { |
2732 | # if _WIN32 |
4183 | # ifdef _WIN32 |
|
|
4184 | evpipe_init (EV_A); |
|
|
4185 | |
2733 | signal (w->signum, ev_sighandler); |
4186 | signal (w->signum, ev_sighandler); |
2734 | # else |
4187 | # else |
2735 | struct sigaction sa; |
4188 | struct sigaction sa; |
2736 | |
4189 | |
2737 | evpipe_init (EV_A); |
4190 | evpipe_init (EV_A); |
… | |
… | |
2739 | sa.sa_handler = ev_sighandler; |
4192 | sa.sa_handler = ev_sighandler; |
2740 | sigfillset (&sa.sa_mask); |
4193 | sigfillset (&sa.sa_mask); |
2741 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4194 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2742 | sigaction (w->signum, &sa, 0); |
4195 | sigaction (w->signum, &sa, 0); |
2743 | |
4196 | |
|
|
4197 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4198 | { |
2744 | sigemptyset (&sa.sa_mask); |
4199 | sigemptyset (&sa.sa_mask); |
2745 | sigaddset (&sa.sa_mask, w->signum); |
4200 | sigaddset (&sa.sa_mask, w->signum); |
2746 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
4201 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4202 | } |
2747 | #endif |
4203 | #endif |
2748 | } |
4204 | } |
2749 | |
4205 | |
2750 | EV_FREQUENT_CHECK; |
4206 | EV_FREQUENT_CHECK; |
2751 | } |
4207 | } |
2752 | |
4208 | |
2753 | void noinline |
4209 | noinline |
|
|
4210 | void |
2754 | ev_signal_stop (EV_P_ ev_signal *w) |
4211 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2755 | { |
4212 | { |
2756 | clear_pending (EV_A_ (W)w); |
4213 | clear_pending (EV_A_ (W)w); |
2757 | if (expect_false (!ev_is_active (w))) |
4214 | if (expect_false (!ev_is_active (w))) |
2758 | return; |
4215 | return; |
2759 | |
4216 | |
… | |
… | |
2768 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
4225 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
2769 | #endif |
4226 | #endif |
2770 | #if EV_USE_SIGNALFD |
4227 | #if EV_USE_SIGNALFD |
2771 | if (sigfd >= 0) |
4228 | if (sigfd >= 0) |
2772 | { |
4229 | { |
2773 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
4230 | sigset_t ss; |
|
|
4231 | |
|
|
4232 | sigemptyset (&ss); |
|
|
4233 | sigaddset (&ss, w->signum); |
2774 | sigdelset (&sigfd_set, w->signum); |
4234 | sigdelset (&sigfd_set, w->signum); |
|
|
4235 | |
2775 | signalfd (sigfd, &sigfd_set, 0); |
4236 | signalfd (sigfd, &sigfd_set, 0); |
2776 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
4237 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2777 | /*TODO: maybe unblock signal? */ |
|
|
2778 | } |
4238 | } |
2779 | else |
4239 | else |
2780 | #endif |
4240 | #endif |
2781 | signal (w->signum, SIG_DFL); |
4241 | signal (w->signum, SIG_DFL); |
2782 | } |
4242 | } |
2783 | |
4243 | |
2784 | EV_FREQUENT_CHECK; |
4244 | EV_FREQUENT_CHECK; |
2785 | } |
4245 | } |
2786 | |
4246 | |
|
|
4247 | #endif |
|
|
4248 | |
|
|
4249 | #if EV_CHILD_ENABLE |
|
|
4250 | |
2787 | void |
4251 | void |
2788 | ev_child_start (EV_P_ ev_child *w) |
4252 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2789 | { |
4253 | { |
2790 | #if EV_MULTIPLICITY |
4254 | #if EV_MULTIPLICITY |
2791 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4255 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2792 | #endif |
4256 | #endif |
2793 | if (expect_false (ev_is_active (w))) |
4257 | if (expect_false (ev_is_active (w))) |
2794 | return; |
4258 | return; |
2795 | |
4259 | |
2796 | EV_FREQUENT_CHECK; |
4260 | EV_FREQUENT_CHECK; |
2797 | |
4261 | |
2798 | ev_start (EV_A_ (W)w, 1); |
4262 | ev_start (EV_A_ (W)w, 1); |
2799 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4263 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2800 | |
4264 | |
2801 | EV_FREQUENT_CHECK; |
4265 | EV_FREQUENT_CHECK; |
2802 | } |
4266 | } |
2803 | |
4267 | |
2804 | void |
4268 | void |
2805 | ev_child_stop (EV_P_ ev_child *w) |
4269 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2806 | { |
4270 | { |
2807 | clear_pending (EV_A_ (W)w); |
4271 | clear_pending (EV_A_ (W)w); |
2808 | if (expect_false (!ev_is_active (w))) |
4272 | if (expect_false (!ev_is_active (w))) |
2809 | return; |
4273 | return; |
2810 | |
4274 | |
2811 | EV_FREQUENT_CHECK; |
4275 | EV_FREQUENT_CHECK; |
2812 | |
4276 | |
2813 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4277 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2814 | ev_stop (EV_A_ (W)w); |
4278 | ev_stop (EV_A_ (W)w); |
2815 | |
4279 | |
2816 | EV_FREQUENT_CHECK; |
4280 | EV_FREQUENT_CHECK; |
2817 | } |
4281 | } |
|
|
4282 | |
|
|
4283 | #endif |
2818 | |
4284 | |
2819 | #if EV_STAT_ENABLE |
4285 | #if EV_STAT_ENABLE |
2820 | |
4286 | |
2821 | # ifdef _WIN32 |
4287 | # ifdef _WIN32 |
2822 | # undef lstat |
4288 | # undef lstat |
… | |
… | |
2825 | |
4291 | |
2826 | #define DEF_STAT_INTERVAL 5.0074891 |
4292 | #define DEF_STAT_INTERVAL 5.0074891 |
2827 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4293 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2828 | #define MIN_STAT_INTERVAL 0.1074891 |
4294 | #define MIN_STAT_INTERVAL 0.1074891 |
2829 | |
4295 | |
2830 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4296 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2831 | |
4297 | |
2832 | #if EV_USE_INOTIFY |
4298 | #if EV_USE_INOTIFY |
2833 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2834 | |
4299 | |
2835 | static void noinline |
4300 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
4301 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
4302 | |
|
|
4303 | noinline |
|
|
4304 | static void |
2836 | infy_add (EV_P_ ev_stat *w) |
4305 | infy_add (EV_P_ ev_stat *w) |
2837 | { |
4306 | { |
2838 | 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); |
4307 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4308 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4309 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4310 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2839 | |
4311 | |
2840 | if (w->wd < 0) |
4312 | if (w->wd >= 0) |
|
|
4313 | { |
|
|
4314 | struct statfs sfs; |
|
|
4315 | |
|
|
4316 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
4317 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
4318 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
4319 | |
|
|
4320 | if (!fs_2625) |
|
|
4321 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4322 | else if (!statfs (w->path, &sfs) |
|
|
4323 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4324 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4325 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
4326 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4327 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4328 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4329 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
4330 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4331 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
4332 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
4333 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
4334 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
4335 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
4336 | else |
|
|
4337 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2841 | { |
4338 | } |
|
|
4339 | else |
|
|
4340 | { |
|
|
4341 | /* can't use inotify, continue to stat */ |
2842 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4342 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2843 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2844 | |
4343 | |
2845 | /* monitor some parent directory for speedup hints */ |
4344 | /* if path is not there, monitor some parent directory for speedup hints */ |
2846 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
4345 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2847 | /* but an efficiency issue only */ |
4346 | /* but an efficiency issue only */ |
2848 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
4347 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2849 | { |
4348 | { |
2850 | char path [4096]; |
4349 | char path [4096]; |
… | |
… | |
2860 | if (!pend || pend == path) |
4359 | if (!pend || pend == path) |
2861 | break; |
4360 | break; |
2862 | |
4361 | |
2863 | *pend = 0; |
4362 | *pend = 0; |
2864 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4363 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2865 | } |
4364 | } |
2866 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4365 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2867 | } |
4366 | } |
2868 | } |
4367 | } |
2869 | |
4368 | |
2870 | if (w->wd >= 0) |
4369 | if (w->wd >= 0) |
2871 | { |
|
|
2872 | struct statfs sfs; |
|
|
2873 | |
|
|
2874 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4370 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2875 | |
4371 | |
2876 | /* now local changes will be tracked by inotify, but remote changes won't */ |
4372 | /* now re-arm timer, if required */ |
2877 | /* unless the filesystem it known to be local, we therefore still poll */ |
4373 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2878 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2879 | |
|
|
2880 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2881 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2882 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2883 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2884 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2885 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2886 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2887 | return; |
|
|
2888 | |
|
|
2889 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2890 | ev_timer_again (EV_A_ &w->timer); |
4374 | ev_timer_again (EV_A_ &w->timer); |
2891 | } |
4375 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2892 | } |
4376 | } |
2893 | |
4377 | |
2894 | static void noinline |
4378 | noinline |
|
|
4379 | static void |
2895 | infy_del (EV_P_ ev_stat *w) |
4380 | infy_del (EV_P_ ev_stat *w) |
2896 | { |
4381 | { |
2897 | int slot; |
4382 | int slot; |
2898 | int wd = w->wd; |
4383 | int wd = w->wd; |
2899 | |
4384 | |
2900 | if (wd < 0) |
4385 | if (wd < 0) |
2901 | return; |
4386 | return; |
2902 | |
4387 | |
2903 | w->wd = -2; |
4388 | w->wd = -2; |
2904 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4389 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2905 | wlist_del (&fs_hash [slot].head, (WL)w); |
4390 | wlist_del (&fs_hash [slot].head, (WL)w); |
2906 | |
4391 | |
2907 | /* remove this watcher, if others are watching it, they will rearm */ |
4392 | /* remove this watcher, if others are watching it, they will rearm */ |
2908 | inotify_rm_watch (fs_fd, wd); |
4393 | inotify_rm_watch (fs_fd, wd); |
2909 | } |
4394 | } |
2910 | |
4395 | |
2911 | static void noinline |
4396 | noinline |
|
|
4397 | static void |
2912 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4398 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2913 | { |
4399 | { |
2914 | if (slot < 0) |
4400 | if (slot < 0) |
2915 | /* overflow, need to check for all hash slots */ |
4401 | /* overflow, need to check for all hash slots */ |
2916 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4402 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2917 | infy_wd (EV_A_ slot, wd, ev); |
4403 | infy_wd (EV_A_ slot, wd, ev); |
2918 | else |
4404 | else |
2919 | { |
4405 | { |
2920 | WL w_; |
4406 | WL w_; |
2921 | |
4407 | |
2922 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4408 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2923 | { |
4409 | { |
2924 | ev_stat *w = (ev_stat *)w_; |
4410 | ev_stat *w = (ev_stat *)w_; |
2925 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4411 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2926 | |
4412 | |
2927 | if (w->wd == wd || wd == -1) |
4413 | if (w->wd == wd || wd == -1) |
2928 | { |
4414 | { |
2929 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4415 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2930 | { |
4416 | { |
2931 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4417 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2932 | w->wd = -1; |
4418 | w->wd = -1; |
2933 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4419 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2934 | } |
4420 | } |
2935 | |
4421 | |
2936 | stat_timer_cb (EV_A_ &w->timer, 0); |
4422 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2941 | |
4427 | |
2942 | static void |
4428 | static void |
2943 | infy_cb (EV_P_ ev_io *w, int revents) |
4429 | infy_cb (EV_P_ ev_io *w, int revents) |
2944 | { |
4430 | { |
2945 | char buf [EV_INOTIFY_BUFSIZE]; |
4431 | char buf [EV_INOTIFY_BUFSIZE]; |
2946 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2947 | int ofs; |
4432 | int ofs; |
2948 | int len = read (fs_fd, buf, sizeof (buf)); |
4433 | int len = read (fs_fd, buf, sizeof (buf)); |
2949 | |
4434 | |
2950 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4435 | for (ofs = 0; ofs < len; ) |
|
|
4436 | { |
|
|
4437 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2951 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4438 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4439 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4440 | } |
2952 | } |
4441 | } |
2953 | |
4442 | |
2954 | inline_size void |
4443 | inline_size ecb_cold |
|
|
4444 | void |
2955 | check_2625 (EV_P) |
4445 | ev_check_2625 (EV_P) |
2956 | { |
4446 | { |
2957 | /* kernels < 2.6.25 are borked |
4447 | /* kernels < 2.6.25 are borked |
2958 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4448 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2959 | */ |
4449 | */ |
2960 | struct utsname buf; |
4450 | if (ev_linux_version () < 0x020619) |
2961 | int major, minor, micro; |
|
|
2962 | |
|
|
2963 | if (uname (&buf)) |
|
|
2964 | return; |
4451 | return; |
2965 | |
4452 | |
2966 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2967 | return; |
|
|
2968 | |
|
|
2969 | if (major < 2 |
|
|
2970 | || (major == 2 && minor < 6) |
|
|
2971 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2972 | return; |
|
|
2973 | |
|
|
2974 | fs_2625 = 1; |
4453 | fs_2625 = 1; |
|
|
4454 | } |
|
|
4455 | |
|
|
4456 | inline_size int |
|
|
4457 | infy_newfd (void) |
|
|
4458 | { |
|
|
4459 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4460 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4461 | if (fd >= 0) |
|
|
4462 | return fd; |
|
|
4463 | #endif |
|
|
4464 | return inotify_init (); |
2975 | } |
4465 | } |
2976 | |
4466 | |
2977 | inline_size void |
4467 | inline_size void |
2978 | infy_init (EV_P) |
4468 | infy_init (EV_P) |
2979 | { |
4469 | { |
2980 | if (fs_fd != -2) |
4470 | if (fs_fd != -2) |
2981 | return; |
4471 | return; |
2982 | |
4472 | |
2983 | fs_fd = -1; |
4473 | fs_fd = -1; |
2984 | |
4474 | |
2985 | check_2625 (EV_A); |
4475 | ev_check_2625 (EV_A); |
2986 | |
4476 | |
2987 | fs_fd = inotify_init (); |
4477 | fs_fd = infy_newfd (); |
2988 | |
4478 | |
2989 | if (fs_fd >= 0) |
4479 | if (fs_fd >= 0) |
2990 | { |
4480 | { |
|
|
4481 | fd_intern (fs_fd); |
2991 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4482 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2992 | ev_set_priority (&fs_w, EV_MAXPRI); |
4483 | ev_set_priority (&fs_w, EV_MAXPRI); |
2993 | ev_io_start (EV_A_ &fs_w); |
4484 | ev_io_start (EV_A_ &fs_w); |
|
|
4485 | ev_unref (EV_A); |
2994 | } |
4486 | } |
2995 | } |
4487 | } |
2996 | |
4488 | |
2997 | inline_size void |
4489 | inline_size void |
2998 | infy_fork (EV_P) |
4490 | infy_fork (EV_P) |
… | |
… | |
3000 | int slot; |
4492 | int slot; |
3001 | |
4493 | |
3002 | if (fs_fd < 0) |
4494 | if (fs_fd < 0) |
3003 | return; |
4495 | return; |
3004 | |
4496 | |
|
|
4497 | ev_ref (EV_A); |
|
|
4498 | ev_io_stop (EV_A_ &fs_w); |
3005 | close (fs_fd); |
4499 | close (fs_fd); |
3006 | fs_fd = inotify_init (); |
4500 | fs_fd = infy_newfd (); |
3007 | |
4501 | |
|
|
4502 | if (fs_fd >= 0) |
|
|
4503 | { |
|
|
4504 | fd_intern (fs_fd); |
|
|
4505 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4506 | ev_io_start (EV_A_ &fs_w); |
|
|
4507 | ev_unref (EV_A); |
|
|
4508 | } |
|
|
4509 | |
3008 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4510 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3009 | { |
4511 | { |
3010 | WL w_ = fs_hash [slot].head; |
4512 | WL w_ = fs_hash [slot].head; |
3011 | fs_hash [slot].head = 0; |
4513 | fs_hash [slot].head = 0; |
3012 | |
4514 | |
3013 | while (w_) |
4515 | while (w_) |
… | |
… | |
3018 | w->wd = -1; |
4520 | w->wd = -1; |
3019 | |
4521 | |
3020 | if (fs_fd >= 0) |
4522 | if (fs_fd >= 0) |
3021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4523 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3022 | else |
4524 | else |
|
|
4525 | { |
|
|
4526 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4527 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3023 | ev_timer_again (EV_A_ &w->timer); |
4528 | ev_timer_again (EV_A_ &w->timer); |
|
|
4529 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4530 | } |
3024 | } |
4531 | } |
3025 | } |
4532 | } |
3026 | } |
4533 | } |
3027 | |
4534 | |
3028 | #endif |
4535 | #endif |
… | |
… | |
3032 | #else |
4539 | #else |
3033 | # define EV_LSTAT(p,b) lstat (p, b) |
4540 | # define EV_LSTAT(p,b) lstat (p, b) |
3034 | #endif |
4541 | #endif |
3035 | |
4542 | |
3036 | void |
4543 | void |
3037 | ev_stat_stat (EV_P_ ev_stat *w) |
4544 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3038 | { |
4545 | { |
3039 | if (lstat (w->path, &w->attr) < 0) |
4546 | if (lstat (w->path, &w->attr) < 0) |
3040 | w->attr.st_nlink = 0; |
4547 | w->attr.st_nlink = 0; |
3041 | else if (!w->attr.st_nlink) |
4548 | else if (!w->attr.st_nlink) |
3042 | w->attr.st_nlink = 1; |
4549 | w->attr.st_nlink = 1; |
3043 | } |
4550 | } |
3044 | |
4551 | |
3045 | static void noinline |
4552 | noinline |
|
|
4553 | static void |
3046 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4554 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3047 | { |
4555 | { |
3048 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4556 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3049 | |
4557 | |
3050 | /* we copy this here each the time so that */ |
4558 | ev_statdata prev = w->attr; |
3051 | /* prev has the old value when the callback gets invoked */ |
|
|
3052 | w->prev = w->attr; |
|
|
3053 | ev_stat_stat (EV_A_ w); |
4559 | ev_stat_stat (EV_A_ w); |
3054 | |
4560 | |
3055 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4561 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3056 | if ( |
4562 | if ( |
3057 | w->prev.st_dev != w->attr.st_dev |
4563 | prev.st_dev != w->attr.st_dev |
3058 | || w->prev.st_ino != w->attr.st_ino |
4564 | || prev.st_ino != w->attr.st_ino |
3059 | || w->prev.st_mode != w->attr.st_mode |
4565 | || prev.st_mode != w->attr.st_mode |
3060 | || w->prev.st_nlink != w->attr.st_nlink |
4566 | || prev.st_nlink != w->attr.st_nlink |
3061 | || w->prev.st_uid != w->attr.st_uid |
4567 | || prev.st_uid != w->attr.st_uid |
3062 | || w->prev.st_gid != w->attr.st_gid |
4568 | || prev.st_gid != w->attr.st_gid |
3063 | || w->prev.st_rdev != w->attr.st_rdev |
4569 | || prev.st_rdev != w->attr.st_rdev |
3064 | || w->prev.st_size != w->attr.st_size |
4570 | || prev.st_size != w->attr.st_size |
3065 | || w->prev.st_atime != w->attr.st_atime |
4571 | || prev.st_atime != w->attr.st_atime |
3066 | || w->prev.st_mtime != w->attr.st_mtime |
4572 | || prev.st_mtime != w->attr.st_mtime |
3067 | || w->prev.st_ctime != w->attr.st_ctime |
4573 | || prev.st_ctime != w->attr.st_ctime |
3068 | ) { |
4574 | ) { |
|
|
4575 | /* we only update w->prev on actual differences */ |
|
|
4576 | /* in case we test more often than invoke the callback, */ |
|
|
4577 | /* to ensure that prev is always different to attr */ |
|
|
4578 | w->prev = prev; |
|
|
4579 | |
3069 | #if EV_USE_INOTIFY |
4580 | #if EV_USE_INOTIFY |
3070 | if (fs_fd >= 0) |
4581 | if (fs_fd >= 0) |
3071 | { |
4582 | { |
3072 | infy_del (EV_A_ w); |
4583 | infy_del (EV_A_ w); |
3073 | infy_add (EV_A_ w); |
4584 | infy_add (EV_A_ w); |
… | |
… | |
3078 | ev_feed_event (EV_A_ w, EV_STAT); |
4589 | ev_feed_event (EV_A_ w, EV_STAT); |
3079 | } |
4590 | } |
3080 | } |
4591 | } |
3081 | |
4592 | |
3082 | void |
4593 | void |
3083 | ev_stat_start (EV_P_ ev_stat *w) |
4594 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3084 | { |
4595 | { |
3085 | if (expect_false (ev_is_active (w))) |
4596 | if (expect_false (ev_is_active (w))) |
3086 | return; |
4597 | return; |
3087 | |
4598 | |
3088 | ev_stat_stat (EV_A_ w); |
4599 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3098 | |
4609 | |
3099 | if (fs_fd >= 0) |
4610 | if (fs_fd >= 0) |
3100 | infy_add (EV_A_ w); |
4611 | infy_add (EV_A_ w); |
3101 | else |
4612 | else |
3102 | #endif |
4613 | #endif |
|
|
4614 | { |
3103 | ev_timer_again (EV_A_ &w->timer); |
4615 | ev_timer_again (EV_A_ &w->timer); |
|
|
4616 | ev_unref (EV_A); |
|
|
4617 | } |
3104 | |
4618 | |
3105 | ev_start (EV_A_ (W)w, 1); |
4619 | ev_start (EV_A_ (W)w, 1); |
3106 | |
4620 | |
3107 | EV_FREQUENT_CHECK; |
4621 | EV_FREQUENT_CHECK; |
3108 | } |
4622 | } |
3109 | |
4623 | |
3110 | void |
4624 | void |
3111 | ev_stat_stop (EV_P_ ev_stat *w) |
4625 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3112 | { |
4626 | { |
3113 | clear_pending (EV_A_ (W)w); |
4627 | clear_pending (EV_A_ (W)w); |
3114 | if (expect_false (!ev_is_active (w))) |
4628 | if (expect_false (!ev_is_active (w))) |
3115 | return; |
4629 | return; |
3116 | |
4630 | |
3117 | EV_FREQUENT_CHECK; |
4631 | EV_FREQUENT_CHECK; |
3118 | |
4632 | |
3119 | #if EV_USE_INOTIFY |
4633 | #if EV_USE_INOTIFY |
3120 | infy_del (EV_A_ w); |
4634 | infy_del (EV_A_ w); |
3121 | #endif |
4635 | #endif |
|
|
4636 | |
|
|
4637 | if (ev_is_active (&w->timer)) |
|
|
4638 | { |
|
|
4639 | ev_ref (EV_A); |
3122 | ev_timer_stop (EV_A_ &w->timer); |
4640 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4641 | } |
3123 | |
4642 | |
3124 | ev_stop (EV_A_ (W)w); |
4643 | ev_stop (EV_A_ (W)w); |
3125 | |
4644 | |
3126 | EV_FREQUENT_CHECK; |
4645 | EV_FREQUENT_CHECK; |
3127 | } |
4646 | } |
3128 | #endif |
4647 | #endif |
3129 | |
4648 | |
3130 | #if EV_IDLE_ENABLE |
4649 | #if EV_IDLE_ENABLE |
3131 | void |
4650 | void |
3132 | ev_idle_start (EV_P_ ev_idle *w) |
4651 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3133 | { |
4652 | { |
3134 | if (expect_false (ev_is_active (w))) |
4653 | if (expect_false (ev_is_active (w))) |
3135 | return; |
4654 | return; |
3136 | |
4655 | |
3137 | pri_adjust (EV_A_ (W)w); |
4656 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3142 | int active = ++idlecnt [ABSPRI (w)]; |
4661 | int active = ++idlecnt [ABSPRI (w)]; |
3143 | |
4662 | |
3144 | ++idleall; |
4663 | ++idleall; |
3145 | ev_start (EV_A_ (W)w, active); |
4664 | ev_start (EV_A_ (W)w, active); |
3146 | |
4665 | |
3147 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4666 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3148 | idles [ABSPRI (w)][active - 1] = w; |
4667 | idles [ABSPRI (w)][active - 1] = w; |
3149 | } |
4668 | } |
3150 | |
4669 | |
3151 | EV_FREQUENT_CHECK; |
4670 | EV_FREQUENT_CHECK; |
3152 | } |
4671 | } |
3153 | |
4672 | |
3154 | void |
4673 | void |
3155 | ev_idle_stop (EV_P_ ev_idle *w) |
4674 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3156 | { |
4675 | { |
3157 | clear_pending (EV_A_ (W)w); |
4676 | clear_pending (EV_A_ (W)w); |
3158 | if (expect_false (!ev_is_active (w))) |
4677 | if (expect_false (!ev_is_active (w))) |
3159 | return; |
4678 | return; |
3160 | |
4679 | |
… | |
… | |
3172 | |
4691 | |
3173 | EV_FREQUENT_CHECK; |
4692 | EV_FREQUENT_CHECK; |
3174 | } |
4693 | } |
3175 | #endif |
4694 | #endif |
3176 | |
4695 | |
|
|
4696 | #if EV_PREPARE_ENABLE |
3177 | void |
4697 | void |
3178 | ev_prepare_start (EV_P_ ev_prepare *w) |
4698 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3179 | { |
4699 | { |
3180 | if (expect_false (ev_is_active (w))) |
4700 | if (expect_false (ev_is_active (w))) |
3181 | return; |
4701 | return; |
3182 | |
4702 | |
3183 | EV_FREQUENT_CHECK; |
4703 | EV_FREQUENT_CHECK; |
3184 | |
4704 | |
3185 | ev_start (EV_A_ (W)w, ++preparecnt); |
4705 | ev_start (EV_A_ (W)w, ++preparecnt); |
3186 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4706 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3187 | prepares [preparecnt - 1] = w; |
4707 | prepares [preparecnt - 1] = w; |
3188 | |
4708 | |
3189 | EV_FREQUENT_CHECK; |
4709 | EV_FREQUENT_CHECK; |
3190 | } |
4710 | } |
3191 | |
4711 | |
3192 | void |
4712 | void |
3193 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4713 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3194 | { |
4714 | { |
3195 | clear_pending (EV_A_ (W)w); |
4715 | clear_pending (EV_A_ (W)w); |
3196 | if (expect_false (!ev_is_active (w))) |
4716 | if (expect_false (!ev_is_active (w))) |
3197 | return; |
4717 | return; |
3198 | |
4718 | |
… | |
… | |
3207 | |
4727 | |
3208 | ev_stop (EV_A_ (W)w); |
4728 | ev_stop (EV_A_ (W)w); |
3209 | |
4729 | |
3210 | EV_FREQUENT_CHECK; |
4730 | EV_FREQUENT_CHECK; |
3211 | } |
4731 | } |
|
|
4732 | #endif |
3212 | |
4733 | |
|
|
4734 | #if EV_CHECK_ENABLE |
3213 | void |
4735 | void |
3214 | ev_check_start (EV_P_ ev_check *w) |
4736 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3215 | { |
4737 | { |
3216 | if (expect_false (ev_is_active (w))) |
4738 | if (expect_false (ev_is_active (w))) |
3217 | return; |
4739 | return; |
3218 | |
4740 | |
3219 | EV_FREQUENT_CHECK; |
4741 | EV_FREQUENT_CHECK; |
3220 | |
4742 | |
3221 | ev_start (EV_A_ (W)w, ++checkcnt); |
4743 | ev_start (EV_A_ (W)w, ++checkcnt); |
3222 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4744 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3223 | checks [checkcnt - 1] = w; |
4745 | checks [checkcnt - 1] = w; |
3224 | |
4746 | |
3225 | EV_FREQUENT_CHECK; |
4747 | EV_FREQUENT_CHECK; |
3226 | } |
4748 | } |
3227 | |
4749 | |
3228 | void |
4750 | void |
3229 | ev_check_stop (EV_P_ ev_check *w) |
4751 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3230 | { |
4752 | { |
3231 | clear_pending (EV_A_ (W)w); |
4753 | clear_pending (EV_A_ (W)w); |
3232 | if (expect_false (!ev_is_active (w))) |
4754 | if (expect_false (!ev_is_active (w))) |
3233 | return; |
4755 | return; |
3234 | |
4756 | |
… | |
… | |
3243 | |
4765 | |
3244 | ev_stop (EV_A_ (W)w); |
4766 | ev_stop (EV_A_ (W)w); |
3245 | |
4767 | |
3246 | EV_FREQUENT_CHECK; |
4768 | EV_FREQUENT_CHECK; |
3247 | } |
4769 | } |
|
|
4770 | #endif |
3248 | |
4771 | |
3249 | #if EV_EMBED_ENABLE |
4772 | #if EV_EMBED_ENABLE |
3250 | void noinline |
4773 | noinline |
|
|
4774 | void |
3251 | ev_embed_sweep (EV_P_ ev_embed *w) |
4775 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3252 | { |
4776 | { |
3253 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4777 | ev_run (w->other, EVRUN_NOWAIT); |
3254 | } |
4778 | } |
3255 | |
4779 | |
3256 | static void |
4780 | static void |
3257 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4781 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3258 | { |
4782 | { |
3259 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4783 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3260 | |
4784 | |
3261 | if (ev_cb (w)) |
4785 | if (ev_cb (w)) |
3262 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4786 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3263 | else |
4787 | else |
3264 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4788 | ev_run (w->other, EVRUN_NOWAIT); |
3265 | } |
4789 | } |
3266 | |
4790 | |
3267 | static void |
4791 | static void |
3268 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4792 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3269 | { |
4793 | { |
… | |
… | |
3273 | EV_P = w->other; |
4797 | EV_P = w->other; |
3274 | |
4798 | |
3275 | while (fdchangecnt) |
4799 | while (fdchangecnt) |
3276 | { |
4800 | { |
3277 | fd_reify (EV_A); |
4801 | fd_reify (EV_A); |
3278 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4802 | ev_run (EV_A_ EVRUN_NOWAIT); |
3279 | } |
4803 | } |
3280 | } |
4804 | } |
3281 | } |
4805 | } |
3282 | |
4806 | |
3283 | static void |
4807 | static void |
… | |
… | |
3289 | |
4813 | |
3290 | { |
4814 | { |
3291 | EV_P = w->other; |
4815 | EV_P = w->other; |
3292 | |
4816 | |
3293 | ev_loop_fork (EV_A); |
4817 | ev_loop_fork (EV_A); |
3294 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4818 | ev_run (EV_A_ EVRUN_NOWAIT); |
3295 | } |
4819 | } |
3296 | |
4820 | |
3297 | ev_embed_start (EV_A_ w); |
4821 | ev_embed_start (EV_A_ w); |
3298 | } |
4822 | } |
3299 | |
4823 | |
… | |
… | |
3304 | ev_idle_stop (EV_A_ idle); |
4828 | ev_idle_stop (EV_A_ idle); |
3305 | } |
4829 | } |
3306 | #endif |
4830 | #endif |
3307 | |
4831 | |
3308 | void |
4832 | void |
3309 | ev_embed_start (EV_P_ ev_embed *w) |
4833 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3310 | { |
4834 | { |
3311 | if (expect_false (ev_is_active (w))) |
4835 | if (expect_false (ev_is_active (w))) |
3312 | return; |
4836 | return; |
3313 | |
4837 | |
3314 | { |
4838 | { |
… | |
… | |
3335 | |
4859 | |
3336 | EV_FREQUENT_CHECK; |
4860 | EV_FREQUENT_CHECK; |
3337 | } |
4861 | } |
3338 | |
4862 | |
3339 | void |
4863 | void |
3340 | ev_embed_stop (EV_P_ ev_embed *w) |
4864 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3341 | { |
4865 | { |
3342 | clear_pending (EV_A_ (W)w); |
4866 | clear_pending (EV_A_ (W)w); |
3343 | if (expect_false (!ev_is_active (w))) |
4867 | if (expect_false (!ev_is_active (w))) |
3344 | return; |
4868 | return; |
3345 | |
4869 | |
… | |
… | |
3347 | |
4871 | |
3348 | ev_io_stop (EV_A_ &w->io); |
4872 | ev_io_stop (EV_A_ &w->io); |
3349 | ev_prepare_stop (EV_A_ &w->prepare); |
4873 | ev_prepare_stop (EV_A_ &w->prepare); |
3350 | ev_fork_stop (EV_A_ &w->fork); |
4874 | ev_fork_stop (EV_A_ &w->fork); |
3351 | |
4875 | |
|
|
4876 | ev_stop (EV_A_ (W)w); |
|
|
4877 | |
3352 | EV_FREQUENT_CHECK; |
4878 | EV_FREQUENT_CHECK; |
3353 | } |
4879 | } |
3354 | #endif |
4880 | #endif |
3355 | |
4881 | |
3356 | #if EV_FORK_ENABLE |
4882 | #if EV_FORK_ENABLE |
3357 | void |
4883 | void |
3358 | ev_fork_start (EV_P_ ev_fork *w) |
4884 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3359 | { |
4885 | { |
3360 | if (expect_false (ev_is_active (w))) |
4886 | if (expect_false (ev_is_active (w))) |
3361 | return; |
4887 | return; |
3362 | |
4888 | |
3363 | EV_FREQUENT_CHECK; |
4889 | EV_FREQUENT_CHECK; |
3364 | |
4890 | |
3365 | ev_start (EV_A_ (W)w, ++forkcnt); |
4891 | ev_start (EV_A_ (W)w, ++forkcnt); |
3366 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4892 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3367 | forks [forkcnt - 1] = w; |
4893 | forks [forkcnt - 1] = w; |
3368 | |
4894 | |
3369 | EV_FREQUENT_CHECK; |
4895 | EV_FREQUENT_CHECK; |
3370 | } |
4896 | } |
3371 | |
4897 | |
3372 | void |
4898 | void |
3373 | ev_fork_stop (EV_P_ ev_fork *w) |
4899 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3374 | { |
4900 | { |
3375 | clear_pending (EV_A_ (W)w); |
4901 | clear_pending (EV_A_ (W)w); |
3376 | if (expect_false (!ev_is_active (w))) |
4902 | if (expect_false (!ev_is_active (w))) |
3377 | return; |
4903 | return; |
3378 | |
4904 | |
… | |
… | |
3389 | |
4915 | |
3390 | EV_FREQUENT_CHECK; |
4916 | EV_FREQUENT_CHECK; |
3391 | } |
4917 | } |
3392 | #endif |
4918 | #endif |
3393 | |
4919 | |
3394 | #if EV_ASYNC_ENABLE |
4920 | #if EV_CLEANUP_ENABLE |
3395 | void |
4921 | void |
3396 | ev_async_start (EV_P_ ev_async *w) |
4922 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3397 | { |
4923 | { |
3398 | if (expect_false (ev_is_active (w))) |
4924 | if (expect_false (ev_is_active (w))) |
3399 | return; |
4925 | return; |
3400 | |
4926 | |
3401 | evpipe_init (EV_A); |
|
|
3402 | |
|
|
3403 | EV_FREQUENT_CHECK; |
4927 | EV_FREQUENT_CHECK; |
3404 | |
4928 | |
3405 | ev_start (EV_A_ (W)w, ++asynccnt); |
4929 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
3406 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4930 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
3407 | asyncs [asynccnt - 1] = w; |
4931 | cleanups [cleanupcnt - 1] = w; |
3408 | |
4932 | |
|
|
4933 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4934 | ev_unref (EV_A); |
3409 | EV_FREQUENT_CHECK; |
4935 | EV_FREQUENT_CHECK; |
3410 | } |
4936 | } |
3411 | |
4937 | |
3412 | void |
4938 | void |
3413 | ev_async_stop (EV_P_ ev_async *w) |
4939 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3414 | { |
4940 | { |
3415 | clear_pending (EV_A_ (W)w); |
4941 | clear_pending (EV_A_ (W)w); |
3416 | if (expect_false (!ev_is_active (w))) |
4942 | if (expect_false (!ev_is_active (w))) |
3417 | return; |
4943 | return; |
3418 | |
4944 | |
3419 | EV_FREQUENT_CHECK; |
4945 | EV_FREQUENT_CHECK; |
|
|
4946 | ev_ref (EV_A); |
|
|
4947 | |
|
|
4948 | { |
|
|
4949 | int active = ev_active (w); |
|
|
4950 | |
|
|
4951 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4952 | ev_active (cleanups [active - 1]) = active; |
|
|
4953 | } |
|
|
4954 | |
|
|
4955 | ev_stop (EV_A_ (W)w); |
|
|
4956 | |
|
|
4957 | EV_FREQUENT_CHECK; |
|
|
4958 | } |
|
|
4959 | #endif |
|
|
4960 | |
|
|
4961 | #if EV_ASYNC_ENABLE |
|
|
4962 | void |
|
|
4963 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
|
|
4964 | { |
|
|
4965 | if (expect_false (ev_is_active (w))) |
|
|
4966 | return; |
|
|
4967 | |
|
|
4968 | w->sent = 0; |
|
|
4969 | |
|
|
4970 | evpipe_init (EV_A); |
|
|
4971 | |
|
|
4972 | EV_FREQUENT_CHECK; |
|
|
4973 | |
|
|
4974 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
4975 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
|
|
4976 | asyncs [asynccnt - 1] = w; |
|
|
4977 | |
|
|
4978 | EV_FREQUENT_CHECK; |
|
|
4979 | } |
|
|
4980 | |
|
|
4981 | void |
|
|
4982 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
|
|
4983 | { |
|
|
4984 | clear_pending (EV_A_ (W)w); |
|
|
4985 | if (expect_false (!ev_is_active (w))) |
|
|
4986 | return; |
|
|
4987 | |
|
|
4988 | EV_FREQUENT_CHECK; |
3420 | |
4989 | |
3421 | { |
4990 | { |
3422 | int active = ev_active (w); |
4991 | int active = ev_active (w); |
3423 | |
4992 | |
3424 | asyncs [active - 1] = asyncs [--asynccnt]; |
4993 | asyncs [active - 1] = asyncs [--asynccnt]; |
… | |
… | |
3429 | |
4998 | |
3430 | EV_FREQUENT_CHECK; |
4999 | EV_FREQUENT_CHECK; |
3431 | } |
5000 | } |
3432 | |
5001 | |
3433 | void |
5002 | void |
3434 | ev_async_send (EV_P_ ev_async *w) |
5003 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3435 | { |
5004 | { |
3436 | w->sent = 1; |
5005 | w->sent = 1; |
3437 | evpipe_write (EV_A_ &async_pending); |
5006 | evpipe_write (EV_A_ &async_pending); |
3438 | } |
5007 | } |
3439 | #endif |
5008 | #endif |
… | |
… | |
3476 | |
5045 | |
3477 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5046 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3478 | } |
5047 | } |
3479 | |
5048 | |
3480 | void |
5049 | void |
3481 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5050 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3482 | { |
5051 | { |
3483 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5052 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3484 | |
|
|
3485 | if (expect_false (!once)) |
|
|
3486 | { |
|
|
3487 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
3488 | return; |
|
|
3489 | } |
|
|
3490 | |
5053 | |
3491 | once->cb = cb; |
5054 | once->cb = cb; |
3492 | once->arg = arg; |
5055 | once->arg = arg; |
3493 | |
5056 | |
3494 | ev_init (&once->io, once_cb_io); |
5057 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3507 | } |
5070 | } |
3508 | |
5071 | |
3509 | /*****************************************************************************/ |
5072 | /*****************************************************************************/ |
3510 | |
5073 | |
3511 | #if EV_WALK_ENABLE |
5074 | #if EV_WALK_ENABLE |
|
|
5075 | ecb_cold |
3512 | void |
5076 | void |
3513 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5077 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3514 | { |
5078 | { |
3515 | int i, j; |
5079 | int i, j; |
3516 | ev_watcher_list *wl, *wn; |
5080 | ev_watcher_list *wl, *wn; |
3517 | |
5081 | |
3518 | if (types & (EV_IO | EV_EMBED)) |
5082 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3561 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5125 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3562 | #endif |
5126 | #endif |
3563 | |
5127 | |
3564 | #if EV_IDLE_ENABLE |
5128 | #if EV_IDLE_ENABLE |
3565 | if (types & EV_IDLE) |
5129 | if (types & EV_IDLE) |
3566 | for (j = NUMPRI; i--; ) |
5130 | for (j = NUMPRI; j--; ) |
3567 | for (i = idlecnt [j]; i--; ) |
5131 | for (i = idlecnt [j]; i--; ) |
3568 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5132 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3569 | #endif |
5133 | #endif |
3570 | |
5134 | |
3571 | #if EV_FORK_ENABLE |
5135 | #if EV_FORK_ENABLE |
… | |
… | |
3579 | if (types & EV_ASYNC) |
5143 | if (types & EV_ASYNC) |
3580 | for (i = asynccnt; i--; ) |
5144 | for (i = asynccnt; i--; ) |
3581 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
5145 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3582 | #endif |
5146 | #endif |
3583 | |
5147 | |
|
|
5148 | #if EV_PREPARE_ENABLE |
3584 | if (types & EV_PREPARE) |
5149 | if (types & EV_PREPARE) |
3585 | for (i = preparecnt; i--; ) |
5150 | for (i = preparecnt; i--; ) |
3586 | #if EV_EMBED_ENABLE |
5151 | # if EV_EMBED_ENABLE |
3587 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
5152 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3588 | #endif |
5153 | # endif |
3589 | cb (EV_A_ EV_PREPARE, prepares [i]); |
5154 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
5155 | #endif |
3590 | |
5156 | |
|
|
5157 | #if EV_CHECK_ENABLE |
3591 | if (types & EV_CHECK) |
5158 | if (types & EV_CHECK) |
3592 | for (i = checkcnt; i--; ) |
5159 | for (i = checkcnt; i--; ) |
3593 | cb (EV_A_ EV_CHECK, checks [i]); |
5160 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
5161 | #endif |
3594 | |
5162 | |
|
|
5163 | #if EV_SIGNAL_ENABLE |
3595 | if (types & EV_SIGNAL) |
5164 | if (types & EV_SIGNAL) |
3596 | for (i = 0; i < EV_NSIG - 1; ++i) |
5165 | for (i = 0; i < EV_NSIG - 1; ++i) |
3597 | for (wl = signals [i].head; wl; ) |
5166 | for (wl = signals [i].head; wl; ) |
3598 | { |
5167 | { |
3599 | wn = wl->next; |
5168 | wn = wl->next; |
3600 | cb (EV_A_ EV_SIGNAL, wl); |
5169 | cb (EV_A_ EV_SIGNAL, wl); |
3601 | wl = wn; |
5170 | wl = wn; |
3602 | } |
5171 | } |
|
|
5172 | #endif |
3603 | |
5173 | |
|
|
5174 | #if EV_CHILD_ENABLE |
3604 | if (types & EV_CHILD) |
5175 | if (types & EV_CHILD) |
3605 | for (i = EV_PID_HASHSIZE; i--; ) |
5176 | for (i = (EV_PID_HASHSIZE); i--; ) |
3606 | for (wl = childs [i]; wl; ) |
5177 | for (wl = childs [i]; wl; ) |
3607 | { |
5178 | { |
3608 | wn = wl->next; |
5179 | wn = wl->next; |
3609 | cb (EV_A_ EV_CHILD, wl); |
5180 | cb (EV_A_ EV_CHILD, wl); |
3610 | wl = wn; |
5181 | wl = wn; |
3611 | } |
5182 | } |
|
|
5183 | #endif |
3612 | /* EV_STAT 0x00001000 /* stat data changed */ |
5184 | /* EV_STAT 0x00001000 /* stat data changed */ |
3613 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
5185 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3614 | } |
5186 | } |
3615 | #endif |
5187 | #endif |
3616 | |
5188 | |
3617 | #if EV_MULTIPLICITY |
5189 | #if EV_MULTIPLICITY |
3618 | #include "ev_wrap.h" |
5190 | #include "ev_wrap.h" |
3619 | #endif |
5191 | #endif |
3620 | |
5192 | |
3621 | #ifdef __cplusplus |
|
|
3622 | } |
|
|
3623 | #endif |
|
|
3624 | |
|
|