1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 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 |
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> |
158 | #include <string.h> |
187 | #include <string.h> |
159 | #include <fcntl.h> |
188 | #include <fcntl.h> |
160 | #include <stddef.h> |
189 | #include <stddef.h> |
161 | |
190 | |
… | |
… | |
171 | |
200 | |
172 | #ifdef EV_H |
201 | #ifdef EV_H |
173 | # include EV_H |
202 | # include EV_H |
174 | #else |
203 | #else |
175 | # 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 |
176 | #endif |
216 | #endif |
177 | |
217 | |
178 | #ifndef _WIN32 |
218 | #ifndef _WIN32 |
179 | # include <sys/time.h> |
219 | # include <sys/time.h> |
180 | # include <sys/wait.h> |
220 | # include <sys/wait.h> |
181 | # include <unistd.h> |
221 | # include <unistd.h> |
182 | #else |
222 | #else |
183 | # include <io.h> |
223 | # include <io.h> |
184 | # define WIN32_LEAN_AND_MEAN |
224 | # define WIN32_LEAN_AND_MEAN |
|
|
225 | # include <winsock2.h> |
185 | # include <windows.h> |
226 | # include <windows.h> |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
227 | # ifndef EV_SELECT_IS_WINSOCKET |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
228 | # define EV_SELECT_IS_WINSOCKET 1 |
188 | # endif |
229 | # endif |
|
|
230 | # undef EV_AVOID_STDIO |
189 | #endif |
231 | #endif |
190 | |
232 | |
191 | /* 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 */ |
192 | |
234 | |
193 | /* try to deduce the maximum number of signals on this platform */ |
235 | /* try to deduce the maximum number of signals on this platform */ |
194 | #if defined (EV_NSIG) |
236 | #if defined EV_NSIG |
195 | /* use what's provided */ |
237 | /* use what's provided */ |
196 | #elif defined (NSIG) |
238 | #elif defined NSIG |
197 | # define EV_NSIG (NSIG) |
239 | # define EV_NSIG (NSIG) |
198 | #elif defined(_NSIG) |
240 | #elif defined _NSIG |
199 | # define EV_NSIG (_NSIG) |
241 | # define EV_NSIG (_NSIG) |
200 | #elif defined (SIGMAX) |
242 | #elif defined SIGMAX |
201 | # define EV_NSIG (SIGMAX+1) |
243 | # define EV_NSIG (SIGMAX+1) |
202 | #elif defined (SIG_MAX) |
244 | #elif defined SIG_MAX |
203 | # define EV_NSIG (SIG_MAX+1) |
245 | # define EV_NSIG (SIG_MAX+1) |
204 | #elif defined (_SIG_MAX) |
246 | #elif defined _SIG_MAX |
205 | # define EV_NSIG (_SIG_MAX+1) |
247 | # define EV_NSIG (_SIG_MAX+1) |
206 | #elif defined (MAXSIG) |
248 | #elif defined MAXSIG |
207 | # define EV_NSIG (MAXSIG+1) |
249 | # define EV_NSIG (MAXSIG+1) |
208 | #elif defined (MAX_SIG) |
250 | #elif defined MAX_SIG |
209 | # define EV_NSIG (MAX_SIG+1) |
251 | # define EV_NSIG (MAX_SIG+1) |
210 | #elif defined (SIGARRAYSIZE) |
252 | #elif defined SIGARRAYSIZE |
211 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
253 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
212 | #elif defined (_sys_nsig) |
254 | #elif defined _sys_nsig |
213 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
255 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
214 | #else |
256 | #else |
215 | # error "unable to find value for NSIG, please report" |
257 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
216 | /* to make it compile regardless, just remove the above line */ |
258 | #endif |
217 | # define EV_NSIG 65 |
259 | |
|
|
260 | #ifndef EV_USE_FLOOR |
|
|
261 | # define EV_USE_FLOOR 0 |
218 | #endif |
262 | #endif |
219 | |
263 | |
220 | #ifndef EV_USE_CLOCK_SYSCALL |
264 | #ifndef EV_USE_CLOCK_SYSCALL |
221 | # if __linux && __GLIBC__ >= 2 |
265 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
222 | # define EV_USE_CLOCK_SYSCALL 1 |
266 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
223 | # else |
267 | # else |
224 | # define EV_USE_CLOCK_SYSCALL 0 |
268 | # define EV_USE_CLOCK_SYSCALL 0 |
225 | # endif |
269 | # endif |
226 | #endif |
270 | #endif |
227 | |
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 | |
228 | #ifndef EV_USE_MONOTONIC |
281 | #ifndef EV_USE_MONOTONIC |
229 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
282 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
230 | # define EV_USE_MONOTONIC 1 |
283 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
231 | # else |
284 | # else |
232 | # define EV_USE_MONOTONIC 0 |
285 | # define EV_USE_MONOTONIC 0 |
233 | # endif |
286 | # endif |
234 | #endif |
287 | #endif |
235 | |
288 | |
… | |
… | |
237 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
290 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
238 | #endif |
291 | #endif |
239 | |
292 | |
240 | #ifndef EV_USE_NANOSLEEP |
293 | #ifndef EV_USE_NANOSLEEP |
241 | # if _POSIX_C_SOURCE >= 199309L |
294 | # if _POSIX_C_SOURCE >= 199309L |
242 | # define EV_USE_NANOSLEEP 1 |
295 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
243 | # else |
296 | # else |
244 | # define EV_USE_NANOSLEEP 0 |
297 | # define EV_USE_NANOSLEEP 0 |
245 | # endif |
298 | # endif |
246 | #endif |
299 | #endif |
247 | |
300 | |
248 | #ifndef EV_USE_SELECT |
301 | #ifndef EV_USE_SELECT |
249 | # define EV_USE_SELECT 1 |
302 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
250 | #endif |
303 | #endif |
251 | |
304 | |
252 | #ifndef EV_USE_POLL |
305 | #ifndef EV_USE_POLL |
253 | # ifdef _WIN32 |
306 | # ifdef _WIN32 |
254 | # define EV_USE_POLL 0 |
307 | # define EV_USE_POLL 0 |
255 | # else |
308 | # else |
256 | # define EV_USE_POLL 1 |
309 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
257 | # endif |
310 | # endif |
258 | #endif |
311 | #endif |
259 | |
312 | |
260 | #ifndef EV_USE_EPOLL |
313 | #ifndef EV_USE_EPOLL |
261 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
262 | # define EV_USE_EPOLL 1 |
315 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
263 | # else |
316 | # else |
264 | # define EV_USE_EPOLL 0 |
317 | # define EV_USE_EPOLL 0 |
265 | # endif |
318 | # endif |
266 | #endif |
319 | #endif |
267 | |
320 | |
… | |
… | |
271 | |
324 | |
272 | #ifndef EV_USE_PORT |
325 | #ifndef EV_USE_PORT |
273 | # define EV_USE_PORT 0 |
326 | # define EV_USE_PORT 0 |
274 | #endif |
327 | #endif |
275 | |
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 | |
|
|
337 | #ifndef EV_USE_IOURING |
|
|
338 | # if __linux |
|
|
339 | # define EV_USE_IOURING 0 |
|
|
340 | # else |
|
|
341 | # define EV_USE_IOURING 0 |
|
|
342 | # endif |
|
|
343 | #endif |
|
|
344 | |
276 | #ifndef EV_USE_INOTIFY |
345 | #ifndef EV_USE_INOTIFY |
277 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
346 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # define EV_USE_INOTIFY 1 |
347 | # define EV_USE_INOTIFY EV_FEATURE_OS |
279 | # else |
348 | # else |
280 | # define EV_USE_INOTIFY 0 |
349 | # define EV_USE_INOTIFY 0 |
281 | # endif |
350 | # endif |
282 | #endif |
351 | #endif |
283 | |
352 | |
284 | #ifndef EV_PID_HASHSIZE |
353 | #ifndef EV_PID_HASHSIZE |
285 | # if EV_MINIMAL |
354 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
286 | # define EV_PID_HASHSIZE 1 |
|
|
287 | # else |
|
|
288 | # define EV_PID_HASHSIZE 16 |
|
|
289 | # endif |
|
|
290 | #endif |
355 | #endif |
291 | |
356 | |
292 | #ifndef EV_INOTIFY_HASHSIZE |
357 | #ifndef EV_INOTIFY_HASHSIZE |
293 | # if EV_MINIMAL |
358 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
294 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
295 | # else |
|
|
296 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
297 | # endif |
|
|
298 | #endif |
359 | #endif |
299 | |
360 | |
300 | #ifndef EV_USE_EVENTFD |
361 | #ifndef EV_USE_EVENTFD |
301 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
362 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
302 | # define EV_USE_EVENTFD 1 |
363 | # define EV_USE_EVENTFD EV_FEATURE_OS |
303 | # else |
364 | # else |
304 | # define EV_USE_EVENTFD 0 |
365 | # define EV_USE_EVENTFD 0 |
305 | # endif |
366 | # endif |
306 | #endif |
367 | #endif |
307 | |
368 | |
308 | #ifndef EV_USE_SIGNALFD |
369 | #ifndef EV_USE_SIGNALFD |
309 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
370 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # define EV_USE_SIGNALFD 1 |
371 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
311 | # else |
372 | # else |
312 | # define EV_USE_SIGNALFD 0 |
373 | # define EV_USE_SIGNALFD 0 |
313 | # endif |
374 | # endif |
314 | #endif |
375 | #endif |
315 | |
376 | |
… | |
… | |
318 | # define EV_USE_4HEAP 1 |
379 | # define EV_USE_4HEAP 1 |
319 | # define EV_HEAP_CACHE_AT 1 |
380 | # define EV_HEAP_CACHE_AT 1 |
320 | #endif |
381 | #endif |
321 | |
382 | |
322 | #ifndef EV_VERIFY |
383 | #ifndef EV_VERIFY |
323 | # define EV_VERIFY !EV_MINIMAL |
384 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
324 | #endif |
385 | #endif |
325 | |
386 | |
326 | #ifndef EV_USE_4HEAP |
387 | #ifndef EV_USE_4HEAP |
327 | # define EV_USE_4HEAP !EV_MINIMAL |
388 | # define EV_USE_4HEAP EV_FEATURE_DATA |
328 | #endif |
389 | #endif |
329 | |
390 | |
330 | #ifndef EV_HEAP_CACHE_AT |
391 | #ifndef EV_HEAP_CACHE_AT |
331 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
392 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
393 | #endif |
|
|
394 | |
|
|
395 | #ifdef __ANDROID__ |
|
|
396 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
397 | # undef EV_USE_SELECT |
|
|
398 | # define EV_USE_SELECT 0 |
|
|
399 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
400 | # undef EV_USE_CLOCK_SYSCALL |
|
|
401 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
402 | #endif |
|
|
403 | |
|
|
404 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
405 | #ifdef _AIX |
|
|
406 | /* AIX has a completely broken poll.h header */ |
|
|
407 | # undef EV_USE_POLL |
|
|
408 | # define EV_USE_POLL 0 |
332 | #endif |
409 | #endif |
333 | |
410 | |
334 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
411 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
335 | /* which makes programs even slower. might work on other unices, too. */ |
412 | /* which makes programs even slower. might work on other unices, too. */ |
336 | #if EV_USE_CLOCK_SYSCALL |
413 | #if EV_USE_CLOCK_SYSCALL |
337 | # include <syscall.h> |
414 | # include <sys/syscall.h> |
338 | # ifdef SYS_clock_gettime |
415 | # ifdef SYS_clock_gettime |
339 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
416 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
340 | # undef EV_USE_MONOTONIC |
417 | # undef EV_USE_MONOTONIC |
341 | # define EV_USE_MONOTONIC 1 |
418 | # define EV_USE_MONOTONIC 1 |
|
|
419 | # define EV_NEED_SYSCALL 1 |
342 | # else |
420 | # else |
343 | # undef EV_USE_CLOCK_SYSCALL |
421 | # undef EV_USE_CLOCK_SYSCALL |
344 | # define EV_USE_CLOCK_SYSCALL 0 |
422 | # define EV_USE_CLOCK_SYSCALL 0 |
345 | # endif |
423 | # endif |
346 | #endif |
424 | #endif |
347 | |
425 | |
348 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
426 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
349 | |
427 | |
350 | #ifdef _AIX |
|
|
351 | /* AIX has a completely broken poll.h header */ |
|
|
352 | # undef EV_USE_POLL |
|
|
353 | # define EV_USE_POLL 0 |
|
|
354 | #endif |
|
|
355 | |
|
|
356 | #ifndef CLOCK_MONOTONIC |
428 | #ifndef CLOCK_MONOTONIC |
357 | # undef EV_USE_MONOTONIC |
429 | # undef EV_USE_MONOTONIC |
358 | # define EV_USE_MONOTONIC 0 |
430 | # define EV_USE_MONOTONIC 0 |
359 | #endif |
431 | #endif |
360 | |
432 | |
… | |
… | |
367 | # undef EV_USE_INOTIFY |
439 | # undef EV_USE_INOTIFY |
368 | # define EV_USE_INOTIFY 0 |
440 | # define EV_USE_INOTIFY 0 |
369 | #endif |
441 | #endif |
370 | |
442 | |
371 | #if !EV_USE_NANOSLEEP |
443 | #if !EV_USE_NANOSLEEP |
372 | # ifndef _WIN32 |
444 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
445 | # if !defined _WIN32 && !defined __hpux |
373 | # include <sys/select.h> |
446 | # include <sys/select.h> |
374 | # endif |
447 | # endif |
375 | #endif |
448 | #endif |
376 | |
449 | |
|
|
450 | #if EV_USE_LINUXAIO |
|
|
451 | # include <sys/syscall.h> |
|
|
452 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
453 | # define EV_NEED_SYSCALL 1 |
|
|
454 | # else |
|
|
455 | # undef EV_USE_LINUXAIO |
|
|
456 | # define EV_USE_LINUXAIO 0 |
|
|
457 | # endif |
|
|
458 | #endif |
|
|
459 | |
|
|
460 | #if EV_USE_IOURING |
|
|
461 | # include <sys/syscall.h> |
|
|
462 | # if !SYS_io_uring_setup && __linux && !__alpha |
|
|
463 | # define SYS_io_uring_setup 425 |
|
|
464 | # define SYS_io_uring_enter 426 |
|
|
465 | # define SYS_io_uring_wregister 427 |
|
|
466 | # endif |
|
|
467 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
468 | # define EV_NEED_SYSCALL 1 |
|
|
469 | # else |
|
|
470 | # undef EV_USE_IOURING |
|
|
471 | # define EV_USE_IOURING 0 |
|
|
472 | # endif |
|
|
473 | #endif |
|
|
474 | |
377 | #if EV_USE_INOTIFY |
475 | #if EV_USE_INOTIFY |
378 | # include <sys/utsname.h> |
|
|
379 | # include <sys/statfs.h> |
476 | # include <sys/statfs.h> |
380 | # include <sys/inotify.h> |
477 | # include <sys/inotify.h> |
381 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
478 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
382 | # ifndef IN_DONT_FOLLOW |
479 | # ifndef IN_DONT_FOLLOW |
383 | # undef EV_USE_INOTIFY |
480 | # undef EV_USE_INOTIFY |
384 | # define EV_USE_INOTIFY 0 |
481 | # define EV_USE_INOTIFY 0 |
385 | # endif |
482 | # endif |
386 | #endif |
|
|
387 | |
|
|
388 | #if EV_SELECT_IS_WINSOCKET |
|
|
389 | # include <winsock.h> |
|
|
390 | #endif |
483 | #endif |
391 | |
484 | |
392 | #if EV_USE_EVENTFD |
485 | #if EV_USE_EVENTFD |
393 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
486 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
394 | # include <stdint.h> |
487 | # include <stdint.h> |
… | |
… | |
400 | # define EFD_CLOEXEC O_CLOEXEC |
493 | # define EFD_CLOEXEC O_CLOEXEC |
401 | # else |
494 | # else |
402 | # define EFD_CLOEXEC 02000000 |
495 | # define EFD_CLOEXEC 02000000 |
403 | # endif |
496 | # endif |
404 | # endif |
497 | # endif |
405 | # ifdef __cplusplus |
|
|
406 | extern "C" { |
|
|
407 | # endif |
|
|
408 | int (eventfd) (unsigned int initval, int flags); |
498 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
409 | # ifdef __cplusplus |
|
|
410 | } |
|
|
411 | # endif |
|
|
412 | #endif |
499 | #endif |
413 | |
500 | |
414 | #if EV_USE_SIGNALFD |
501 | #if EV_USE_SIGNALFD |
415 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
502 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
416 | # include <stdint.h> |
503 | # include <stdint.h> |
… | |
… | |
422 | # define SFD_CLOEXEC O_CLOEXEC |
509 | # define SFD_CLOEXEC O_CLOEXEC |
423 | # else |
510 | # else |
424 | # define SFD_CLOEXEC 02000000 |
511 | # define SFD_CLOEXEC 02000000 |
425 | # endif |
512 | # endif |
426 | # endif |
513 | # endif |
427 | # ifdef __cplusplus |
|
|
428 | extern "C" { |
|
|
429 | # endif |
|
|
430 | int signalfd (int fd, const sigset_t *mask, int flags); |
514 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
431 | |
515 | |
432 | struct signalfd_siginfo |
516 | struct signalfd_siginfo |
433 | { |
517 | { |
434 | uint32_t ssi_signo; |
518 | uint32_t ssi_signo; |
435 | char pad[128 - sizeof (uint32_t)]; |
519 | char pad[128 - sizeof (uint32_t)]; |
436 | }; |
520 | }; |
437 | # ifdef __cplusplus |
|
|
438 | } |
|
|
439 | # endif |
521 | #endif |
440 | #endif |
|
|
441 | |
522 | |
442 | |
523 | /*****************************************************************************/ |
443 | /**/ |
|
|
444 | |
524 | |
445 | #if EV_VERIFY >= 3 |
525 | #if EV_VERIFY >= 3 |
446 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
526 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
447 | #else |
527 | #else |
448 | # define EV_FREQUENT_CHECK do { } while (0) |
528 | # define EV_FREQUENT_CHECK do { } while (0) |
449 | #endif |
529 | #endif |
450 | |
530 | |
451 | /* |
531 | /* |
452 | * This is used to avoid floating point rounding problems. |
532 | * This is used to work around floating point rounding problems. |
453 | * It is added to ev_rt_now when scheduling periodics |
|
|
454 | * to ensure progress, time-wise, even when rounding |
|
|
455 | * errors are against us. |
|
|
456 | * This value is good at least till the year 4000. |
533 | * This value is good at least till the year 4000. |
457 | * Better solutions welcome. |
|
|
458 | */ |
534 | */ |
459 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
535 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
536 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
460 | |
537 | |
461 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
538 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
539 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
463 | |
540 | |
|
|
541 | /* find a portable timestamp that is "alawys" in the future but fits into time_t. |
|
|
542 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
543 | * and sizes large than 32 bit, but and maybe the unlikely loating point time_t */ |
|
|
544 | #define EV_TSTAMP_HUGE \ |
|
|
545 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
546 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
547 | : 2147483647.) \ |
|
|
548 | |
|
|
549 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
550 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
551 | |
|
|
552 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
553 | /* ECB.H BEGIN */ |
|
|
554 | /* |
|
|
555 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
556 | * |
|
|
557 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
558 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
559 | * All rights reserved. |
|
|
560 | * |
|
|
561 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
562 | * tion, are permitted provided that the following conditions are met: |
|
|
563 | * |
|
|
564 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
565 | * this list of conditions and the following disclaimer. |
|
|
566 | * |
|
|
567 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
568 | * notice, this list of conditions and the following disclaimer in the |
|
|
569 | * documentation and/or other materials provided with the distribution. |
|
|
570 | * |
|
|
571 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
572 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
573 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
574 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
575 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
576 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
577 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
578 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
579 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
580 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
581 | * |
|
|
582 | * Alternatively, the contents of this file may be used under the terms of |
|
|
583 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
584 | * in which case the provisions of the GPL are applicable instead of |
|
|
585 | * the above. If you wish to allow the use of your version of this file |
|
|
586 | * only under the terms of the GPL and not to allow others to use your |
|
|
587 | * version of this file under the BSD license, indicate your decision |
|
|
588 | * by deleting the provisions above and replace them with the notice |
|
|
589 | * and other provisions required by the GPL. If you do not delete the |
|
|
590 | * provisions above, a recipient may use your version of this file under |
|
|
591 | * either the BSD or the GPL. |
|
|
592 | */ |
|
|
593 | |
|
|
594 | #ifndef ECB_H |
|
|
595 | #define ECB_H |
|
|
596 | |
|
|
597 | /* 16 bits major, 16 bits minor */ |
|
|
598 | #define ECB_VERSION 0x00010006 |
|
|
599 | |
|
|
600 | #ifdef _WIN32 |
|
|
601 | typedef signed char int8_t; |
|
|
602 | typedef unsigned char uint8_t; |
|
|
603 | typedef signed short int16_t; |
|
|
604 | typedef unsigned short uint16_t; |
|
|
605 | typedef signed int int32_t; |
|
|
606 | typedef unsigned int uint32_t; |
464 | #if __GNUC__ >= 4 |
607 | #if __GNUC__ |
465 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
608 | typedef signed long long int64_t; |
466 | # define noinline __attribute__ ((noinline)) |
609 | typedef unsigned long long uint64_t; |
|
|
610 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
611 | typedef signed __int64 int64_t; |
|
|
612 | typedef unsigned __int64 uint64_t; |
|
|
613 | #endif |
|
|
614 | #ifdef _WIN64 |
|
|
615 | #define ECB_PTRSIZE 8 |
|
|
616 | typedef uint64_t uintptr_t; |
|
|
617 | typedef int64_t intptr_t; |
|
|
618 | #else |
|
|
619 | #define ECB_PTRSIZE 4 |
|
|
620 | typedef uint32_t uintptr_t; |
|
|
621 | typedef int32_t intptr_t; |
|
|
622 | #endif |
467 | #else |
623 | #else |
468 | # define expect(expr,value) (expr) |
624 | #include <inttypes.h> |
469 | # define noinline |
625 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
470 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
626 | #define ECB_PTRSIZE 8 |
471 | # define inline |
627 | #else |
|
|
628 | #define ECB_PTRSIZE 4 |
|
|
629 | #endif |
472 | # endif |
630 | #endif |
|
|
631 | |
|
|
632 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
633 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
634 | |
|
|
635 | /* work around x32 idiocy by defining proper macros */ |
|
|
636 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
637 | #if _ILP32 |
|
|
638 | #define ECB_AMD64_X32 1 |
|
|
639 | #else |
|
|
640 | #define ECB_AMD64 1 |
473 | #endif |
641 | #endif |
|
|
642 | #endif |
474 | |
643 | |
475 | #define expect_false(expr) expect ((expr) != 0, 0) |
644 | /* many compilers define _GNUC_ to some versions but then only implement |
476 | #define expect_true(expr) expect ((expr) != 0, 1) |
645 | * what their idiot authors think are the "more important" extensions, |
477 | #define inline_size static inline |
646 | * causing enormous grief in return for some better fake benchmark numbers. |
478 | |
647 | * or so. |
479 | #if EV_MINIMAL |
648 | * we try to detect these and simply assume they are not gcc - if they have |
480 | # define inline_speed static noinline |
649 | * an issue with that they should have done it right in the first place. |
|
|
650 | */ |
|
|
651 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
652 | #define ECB_GCC_VERSION(major,minor) 0 |
481 | #else |
653 | #else |
|
|
654 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
655 | #endif |
|
|
656 | |
|
|
657 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
658 | |
|
|
659 | #if __clang__ && defined __has_builtin |
|
|
660 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
661 | #else |
|
|
662 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
663 | #endif |
|
|
664 | |
|
|
665 | #if __clang__ && defined __has_extension |
|
|
666 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
667 | #else |
|
|
668 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
669 | #endif |
|
|
670 | |
|
|
671 | #define ECB_CPP (__cplusplus+0) |
|
|
672 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
673 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
674 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
675 | |
|
|
676 | #if ECB_CPP |
|
|
677 | #define ECB_C 0 |
|
|
678 | #define ECB_STDC_VERSION 0 |
|
|
679 | #else |
|
|
680 | #define ECB_C 1 |
|
|
681 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
685 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
686 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
687 | |
|
|
688 | #if ECB_CPP |
|
|
689 | #define ECB_EXTERN_C extern "C" |
|
|
690 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
691 | #define ECB_EXTERN_C_END } |
|
|
692 | #else |
|
|
693 | #define ECB_EXTERN_C extern |
|
|
694 | #define ECB_EXTERN_C_BEG |
|
|
695 | #define ECB_EXTERN_C_END |
|
|
696 | #endif |
|
|
697 | |
|
|
698 | /*****************************************************************************/ |
|
|
699 | |
|
|
700 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
701 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
702 | |
|
|
703 | #if ECB_NO_THREADS |
|
|
704 | #define ECB_NO_SMP 1 |
|
|
705 | #endif |
|
|
706 | |
|
|
707 | #if ECB_NO_SMP |
|
|
708 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
709 | #endif |
|
|
710 | |
|
|
711 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
712 | #if __xlC__ && ECB_CPP |
|
|
713 | #include <builtins.h> |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | #if 1400 <= _MSC_VER |
|
|
717 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | #ifndef ECB_MEMORY_FENCE |
|
|
721 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
722 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
723 | #if __i386 || __i386__ |
|
|
724 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
725 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
726 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
727 | #elif ECB_GCC_AMD64 |
|
|
728 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
729 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
730 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
731 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
732 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
733 | #elif defined __ARM_ARCH_2__ \ |
|
|
734 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
735 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
736 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
737 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
738 | || defined __ARM_ARCH_5TEJ__ |
|
|
739 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
740 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
741 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
742 | || defined __ARM_ARCH_6T2__ |
|
|
743 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
744 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
745 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
746 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
747 | #elif __aarch64__ |
|
|
748 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
749 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
750 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
751 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
752 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
753 | #elif defined __s390__ || defined __s390x__ |
|
|
754 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
755 | #elif defined __mips__ |
|
|
756 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
757 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
758 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
759 | #elif defined __alpha__ |
|
|
760 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
761 | #elif defined __hppa__ |
|
|
762 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
763 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
764 | #elif defined __ia64__ |
|
|
765 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
766 | #elif defined __m68k__ |
|
|
767 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
768 | #elif defined __m88k__ |
|
|
769 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
770 | #elif defined __sh__ |
|
|
771 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
772 | #endif |
|
|
773 | #endif |
|
|
774 | #endif |
|
|
775 | |
|
|
776 | #ifndef ECB_MEMORY_FENCE |
|
|
777 | #if ECB_GCC_VERSION(4,7) |
|
|
778 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
779 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
780 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
781 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
782 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
783 | |
|
|
784 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
785 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
786 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
787 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
788 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
789 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
790 | |
|
|
791 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
792 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
793 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
794 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
795 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
796 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
797 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
798 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
799 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
800 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
801 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
802 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
803 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
804 | #elif defined _WIN32 |
|
|
805 | #include <WinNT.h> |
|
|
806 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
807 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
808 | #include <mbarrier.h> |
|
|
809 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
810 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
811 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
812 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
813 | #elif __xlC__ |
|
|
814 | #define ECB_MEMORY_FENCE __sync () |
|
|
815 | #endif |
|
|
816 | #endif |
|
|
817 | |
|
|
818 | #ifndef ECB_MEMORY_FENCE |
|
|
819 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
820 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
821 | /* not just C11 atomics and atomic accesses */ |
|
|
822 | #include <stdatomic.h> |
|
|
823 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
824 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
825 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
826 | #endif |
|
|
827 | #endif |
|
|
828 | |
|
|
829 | #ifndef ECB_MEMORY_FENCE |
|
|
830 | #if !ECB_AVOID_PTHREADS |
|
|
831 | /* |
|
|
832 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
833 | * or failure to find pthread.h, then you should implement |
|
|
834 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
835 | * OR provide pthread.h and link against the posix thread library |
|
|
836 | * of your system. |
|
|
837 | */ |
|
|
838 | #include <pthread.h> |
|
|
839 | #define ECB_NEEDS_PTHREADS 1 |
|
|
840 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
841 | |
|
|
842 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
843 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
844 | #endif |
|
|
845 | #endif |
|
|
846 | |
|
|
847 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
849 | #endif |
|
|
850 | |
|
|
851 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
852 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
853 | #endif |
|
|
854 | |
|
|
855 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
856 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | /*****************************************************************************/ |
|
|
860 | |
|
|
861 | #if ECB_CPP |
|
|
862 | #define ecb_inline static inline |
|
|
863 | #elif ECB_GCC_VERSION(2,5) |
|
|
864 | #define ecb_inline static __inline__ |
|
|
865 | #elif ECB_C99 |
|
|
866 | #define ecb_inline static inline |
|
|
867 | #else |
|
|
868 | #define ecb_inline static |
|
|
869 | #endif |
|
|
870 | |
|
|
871 | #if ECB_GCC_VERSION(3,3) |
|
|
872 | #define ecb_restrict __restrict__ |
|
|
873 | #elif ECB_C99 |
|
|
874 | #define ecb_restrict restrict |
|
|
875 | #else |
|
|
876 | #define ecb_restrict |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | typedef int ecb_bool; |
|
|
880 | |
|
|
881 | #define ECB_CONCAT_(a, b) a ## b |
|
|
882 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
883 | #define ECB_STRINGIFY_(a) # a |
|
|
884 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
885 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
886 | |
|
|
887 | #define ecb_function_ ecb_inline |
|
|
888 | |
|
|
889 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
890 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
891 | #else |
|
|
892 | #define ecb_attribute(attrlist) |
|
|
893 | #endif |
|
|
894 | |
|
|
895 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
896 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
897 | #else |
|
|
898 | /* possible C11 impl for integral types |
|
|
899 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
900 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
901 | |
|
|
902 | #define ecb_is_constant(expr) 0 |
|
|
903 | #endif |
|
|
904 | |
|
|
905 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
906 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
907 | #else |
|
|
908 | #define ecb_expect(expr,value) (expr) |
|
|
909 | #endif |
|
|
910 | |
|
|
911 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
912 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
913 | #else |
|
|
914 | #define ecb_prefetch(addr,rw,locality) |
|
|
915 | #endif |
|
|
916 | |
|
|
917 | /* no emulation for ecb_decltype */ |
|
|
918 | #if ECB_CPP11 |
|
|
919 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
920 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
921 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
922 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
923 | #define ecb_decltype(x) __typeof__ (x) |
|
|
924 | #endif |
|
|
925 | |
|
|
926 | #if _MSC_VER >= 1300 |
|
|
927 | #define ecb_deprecated __declspec (deprecated) |
|
|
928 | #else |
|
|
929 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
930 | #endif |
|
|
931 | |
|
|
932 | #if _MSC_VER >= 1500 |
|
|
933 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
934 | #elif ECB_GCC_VERSION(4,5) |
|
|
935 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
936 | #else |
|
|
937 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
938 | #endif |
|
|
939 | |
|
|
940 | #if _MSC_VER >= 1400 |
|
|
941 | #define ecb_noinline __declspec (noinline) |
|
|
942 | #else |
|
|
943 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
944 | #endif |
|
|
945 | |
|
|
946 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
947 | #define ecb_const ecb_attribute ((__const__)) |
|
|
948 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
949 | |
|
|
950 | #if ECB_C11 || __IBMC_NORETURN |
|
|
951 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
952 | #define ecb_noreturn _Noreturn |
|
|
953 | #elif ECB_CPP11 |
|
|
954 | #define ecb_noreturn [[noreturn]] |
|
|
955 | #elif _MSC_VER >= 1200 |
|
|
956 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
957 | #define ecb_noreturn __declspec (noreturn) |
|
|
958 | #else |
|
|
959 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | #if ECB_GCC_VERSION(4,3) |
|
|
963 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
964 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
965 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
966 | #else |
|
|
967 | #define ecb_artificial |
|
|
968 | #define ecb_hot |
|
|
969 | #define ecb_cold |
|
|
970 | #endif |
|
|
971 | |
|
|
972 | /* put around conditional expressions if you are very sure that the */ |
|
|
973 | /* expression is mostly true or mostly false. note that these return */ |
|
|
974 | /* booleans, not the expression. */ |
|
|
975 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
|
|
976 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
977 | /* for compatibility to the rest of the world */ |
|
|
978 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
979 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
980 | |
|
|
981 | /* count trailing zero bits and count # of one bits */ |
|
|
982 | #if ECB_GCC_VERSION(3,4) \ |
|
|
983 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
984 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
985 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
986 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
987 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
988 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
989 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
990 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
991 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
992 | /* no popcountll */ |
|
|
993 | #else |
|
|
994 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
995 | ecb_function_ ecb_const int |
|
|
996 | ecb_ctz32 (uint32_t x) |
|
|
997 | { |
|
|
998 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
999 | unsigned long r; |
|
|
1000 | _BitScanForward (&r, x); |
|
|
1001 | return (int)r; |
|
|
1002 | #else |
|
|
1003 | int r = 0; |
|
|
1004 | |
|
|
1005 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1006 | |
|
|
1007 | #if ECB_branchless_on_i386 |
|
|
1008 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1009 | r += !!(x & 0xcccccccc) << 1; |
|
|
1010 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1011 | r += !!(x & 0xff00ff00) << 3; |
|
|
1012 | r += !!(x & 0xffff0000) << 4; |
|
|
1013 | #else |
|
|
1014 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1015 | if (x & 0xcccccccc) r += 2; |
|
|
1016 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1017 | if (x & 0xff00ff00) r += 8; |
|
|
1018 | if (x & 0xffff0000) r += 16; |
|
|
1019 | #endif |
|
|
1020 | |
|
|
1021 | return r; |
|
|
1022 | #endif |
|
|
1023 | } |
|
|
1024 | |
|
|
1025 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1026 | ecb_function_ ecb_const int |
|
|
1027 | ecb_ctz64 (uint64_t x) |
|
|
1028 | { |
|
|
1029 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1030 | unsigned long r; |
|
|
1031 | _BitScanForward64 (&r, x); |
|
|
1032 | return (int)r; |
|
|
1033 | #else |
|
|
1034 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1035 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1036 | #endif |
|
|
1037 | } |
|
|
1038 | |
|
|
1039 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1040 | ecb_function_ ecb_const int |
|
|
1041 | ecb_popcount32 (uint32_t x) |
|
|
1042 | { |
|
|
1043 | x -= (x >> 1) & 0x55555555; |
|
|
1044 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1045 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1046 | x *= 0x01010101; |
|
|
1047 | |
|
|
1048 | return x >> 24; |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1052 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1053 | { |
|
|
1054 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1055 | unsigned long r; |
|
|
1056 | _BitScanReverse (&r, x); |
|
|
1057 | return (int)r; |
|
|
1058 | #else |
|
|
1059 | int r = 0; |
|
|
1060 | |
|
|
1061 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1062 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1063 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1064 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1065 | if (x >> 1) { r += 1; } |
|
|
1066 | |
|
|
1067 | return r; |
|
|
1068 | #endif |
|
|
1069 | } |
|
|
1070 | |
|
|
1071 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1072 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1073 | { |
|
|
1074 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1075 | unsigned long r; |
|
|
1076 | _BitScanReverse64 (&r, x); |
|
|
1077 | return (int)r; |
|
|
1078 | #else |
|
|
1079 | int r = 0; |
|
|
1080 | |
|
|
1081 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1082 | |
|
|
1083 | return r + ecb_ld32 (x); |
|
|
1084 | #endif |
|
|
1085 | } |
|
|
1086 | #endif |
|
|
1087 | |
|
|
1088 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1089 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1090 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1091 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1092 | |
|
|
1093 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1094 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1095 | { |
|
|
1096 | return ( (x * 0x0802U & 0x22110U) |
|
|
1097 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1101 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1102 | { |
|
|
1103 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1104 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1105 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1106 | x = ( x >> 8 ) | ( x << 8); |
|
|
1107 | |
|
|
1108 | return x; |
|
|
1109 | } |
|
|
1110 | |
|
|
1111 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1112 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1113 | { |
|
|
1114 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1115 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1116 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1117 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1118 | x = ( x >> 16 ) | ( x << 16); |
|
|
1119 | |
|
|
1120 | return x; |
|
|
1121 | } |
|
|
1122 | |
|
|
1123 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1124 | /* so for this version we are lazy */ |
|
|
1125 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1126 | ecb_function_ ecb_const int |
|
|
1127 | ecb_popcount64 (uint64_t x) |
|
|
1128 | { |
|
|
1129 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1130 | } |
|
|
1131 | |
|
|
1132 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1133 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1134 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1135 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1136 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1137 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1138 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1139 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1140 | |
|
|
1141 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1142 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1143 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1144 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1145 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1146 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1147 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1148 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1149 | |
|
|
1150 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1151 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1152 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1153 | #else |
|
|
1154 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1155 | #endif |
|
|
1156 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1157 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1158 | #elif _MSC_VER |
|
|
1159 | #include <stdlib.h> |
|
|
1160 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1161 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1162 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1163 | #else |
|
|
1164 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1165 | ecb_function_ ecb_const uint16_t |
|
|
1166 | ecb_bswap16 (uint16_t x) |
|
|
1167 | { |
|
|
1168 | return ecb_rotl16 (x, 8); |
|
|
1169 | } |
|
|
1170 | |
|
|
1171 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1172 | ecb_function_ ecb_const uint32_t |
|
|
1173 | ecb_bswap32 (uint32_t x) |
|
|
1174 | { |
|
|
1175 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1179 | ecb_function_ ecb_const uint64_t |
|
|
1180 | ecb_bswap64 (uint64_t x) |
|
|
1181 | { |
|
|
1182 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1183 | } |
|
|
1184 | #endif |
|
|
1185 | |
|
|
1186 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1187 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1188 | #else |
|
|
1189 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1190 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1191 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1192 | #endif |
|
|
1193 | |
|
|
1194 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1195 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1196 | |
|
|
1197 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1198 | ecb_inline ecb_const uint32_t |
|
|
1199 | ecb_byteorder_helper (void) |
|
|
1200 | { |
|
|
1201 | /* the union code still generates code under pressure in gcc, */ |
|
|
1202 | /* but less than using pointers, and always seems to */ |
|
|
1203 | /* successfully return a constant. */ |
|
|
1204 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1205 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1206 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1207 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1208 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1209 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1210 | return 0x44332211; |
|
|
1211 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1212 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1213 | #define ECB_BIG_ENDIAN 1 |
|
|
1214 | return 0x11223344; |
|
|
1215 | #else |
|
|
1216 | union |
|
|
1217 | { |
|
|
1218 | uint8_t c[4]; |
|
|
1219 | uint32_t u; |
|
|
1220 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1221 | return u.u; |
|
|
1222 | #endif |
|
|
1223 | } |
|
|
1224 | |
|
|
1225 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1226 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1227 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1228 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1229 | |
|
|
1230 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1231 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1232 | #else |
|
|
1233 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1234 | #endif |
|
|
1235 | |
|
|
1236 | #if ECB_CPP |
|
|
1237 | template<typename T> |
|
|
1238 | static inline T ecb_div_rd (T val, T div) |
|
|
1239 | { |
|
|
1240 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1241 | } |
|
|
1242 | template<typename T> |
|
|
1243 | static inline T ecb_div_ru (T val, T div) |
|
|
1244 | { |
|
|
1245 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1246 | } |
|
|
1247 | #else |
|
|
1248 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1249 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1250 | #endif |
|
|
1251 | |
|
|
1252 | #if ecb_cplusplus_does_not_suck |
|
|
1253 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1254 | template<typename T, int N> |
|
|
1255 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1256 | { |
|
|
1257 | return N; |
|
|
1258 | } |
|
|
1259 | #else |
|
|
1260 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1261 | #endif |
|
|
1262 | |
|
|
1263 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1264 | ecb_function_ ecb_const uint32_t |
|
|
1265 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1266 | { |
|
|
1267 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1268 | int e = (x >> 10) & 0x001f; |
|
|
1269 | unsigned int m = x & 0x03ff; |
|
|
1270 | |
|
|
1271 | if (ecb_expect_false (e == 31)) |
|
|
1272 | /* infinity or NaN */ |
|
|
1273 | e = 255 - (127 - 15); |
|
|
1274 | else if (ecb_expect_false (!e)) |
|
|
1275 | { |
|
|
1276 | if (ecb_expect_true (!m)) |
|
|
1277 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1278 | e = 0 - (127 - 15); |
|
|
1279 | else |
|
|
1280 | { |
|
|
1281 | /* subnormal, renormalise */ |
|
|
1282 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1283 | |
|
|
1284 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1285 | e -= s - 1; |
|
|
1286 | } |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1290 | e += 127 - 15; |
|
|
1291 | |
|
|
1292 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1296 | ecb_function_ ecb_const uint16_t |
|
|
1297 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1298 | { |
|
|
1299 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1300 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1301 | unsigned int m = x & 0x007fffff; |
|
|
1302 | |
|
|
1303 | x &= 0x7fffffff; |
|
|
1304 | |
|
|
1305 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1306 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1307 | { |
|
|
1308 | /* mantissa round-to-even */ |
|
|
1309 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1310 | |
|
|
1311 | /* handle overflow */ |
|
|
1312 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1313 | { |
|
|
1314 | m >>= 1; |
|
|
1315 | e += 1; |
|
|
1316 | } |
|
|
1317 | |
|
|
1318 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1319 | } |
|
|
1320 | |
|
|
1321 | /* handle large numbers and infinity */ |
|
|
1322 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1323 | return s | 0x7c00; |
|
|
1324 | |
|
|
1325 | /* handle zero, subnormals and small numbers */ |
|
|
1326 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1327 | { |
|
|
1328 | /* zero */ |
|
|
1329 | if (ecb_expect_true (!x)) |
|
|
1330 | return s; |
|
|
1331 | |
|
|
1332 | /* handle subnormals */ |
|
|
1333 | |
|
|
1334 | /* too small, will be zero */ |
|
|
1335 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1336 | return s; |
|
|
1337 | |
|
|
1338 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1339 | |
|
|
1340 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1341 | { |
|
|
1342 | unsigned int bits = 14 - e; |
|
|
1343 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1344 | unsigned int even = (m >> bits) & 1; |
|
|
1345 | |
|
|
1346 | /* if this overflows, we will end up with a normalised number */ |
|
|
1347 | m = (m + half + even) >> bits; |
|
|
1348 | } |
|
|
1349 | |
|
|
1350 | return s | m; |
|
|
1351 | } |
|
|
1352 | |
|
|
1353 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1354 | m >>= 13; |
|
|
1355 | |
|
|
1356 | return s | 0x7c00 | m | !m; |
|
|
1357 | } |
|
|
1358 | |
|
|
1359 | /*******************************************************************************/ |
|
|
1360 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1361 | |
|
|
1362 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1363 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1364 | #if 0 \ |
|
|
1365 | || __i386 || __i386__ \ |
|
|
1366 | || ECB_GCC_AMD64 \ |
|
|
1367 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1368 | || defined __s390__ || defined __s390x__ \ |
|
|
1369 | || defined __mips__ \ |
|
|
1370 | || defined __alpha__ \ |
|
|
1371 | || defined __hppa__ \ |
|
|
1372 | || defined __ia64__ \ |
|
|
1373 | || defined __m68k__ \ |
|
|
1374 | || defined __m88k__ \ |
|
|
1375 | || defined __sh__ \ |
|
|
1376 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1377 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1378 | || defined __aarch64__ |
|
|
1379 | #define ECB_STDFP 1 |
|
|
1380 | #include <string.h> /* for memcpy */ |
|
|
1381 | #else |
|
|
1382 | #define ECB_STDFP 0 |
|
|
1383 | #endif |
|
|
1384 | |
|
|
1385 | #ifndef ECB_NO_LIBM |
|
|
1386 | |
|
|
1387 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1388 | |
|
|
1389 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1390 | #ifdef INFINITY |
|
|
1391 | #define ECB_INFINITY INFINITY |
|
|
1392 | #else |
|
|
1393 | #define ECB_INFINITY HUGE_VAL |
|
|
1394 | #endif |
|
|
1395 | |
|
|
1396 | #ifdef NAN |
|
|
1397 | #define ECB_NAN NAN |
|
|
1398 | #else |
|
|
1399 | #define ECB_NAN ECB_INFINITY |
|
|
1400 | #endif |
|
|
1401 | |
|
|
1402 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1403 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1404 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1405 | #else |
|
|
1406 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1407 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1408 | #endif |
|
|
1409 | |
|
|
1410 | /* convert a float to ieee single/binary32 */ |
|
|
1411 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1412 | ecb_function_ ecb_const uint32_t |
|
|
1413 | ecb_float_to_binary32 (float x) |
|
|
1414 | { |
|
|
1415 | uint32_t r; |
|
|
1416 | |
|
|
1417 | #if ECB_STDFP |
|
|
1418 | memcpy (&r, &x, 4); |
|
|
1419 | #else |
|
|
1420 | /* slow emulation, works for anything but -0 */ |
|
|
1421 | uint32_t m; |
|
|
1422 | int e; |
|
|
1423 | |
|
|
1424 | if (x == 0e0f ) return 0x00000000U; |
|
|
1425 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1426 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1427 | if (x != x ) return 0x7fbfffffU; |
|
|
1428 | |
|
|
1429 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1430 | |
|
|
1431 | r = m & 0x80000000U; |
|
|
1432 | |
|
|
1433 | if (r) |
|
|
1434 | m = -m; |
|
|
1435 | |
|
|
1436 | if (e <= -126) |
|
|
1437 | { |
|
|
1438 | m &= 0xffffffU; |
|
|
1439 | m >>= (-125 - e); |
|
|
1440 | e = -126; |
|
|
1441 | } |
|
|
1442 | |
|
|
1443 | r |= (e + 126) << 23; |
|
|
1444 | r |= m & 0x7fffffU; |
|
|
1445 | #endif |
|
|
1446 | |
|
|
1447 | return r; |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | /* converts an ieee single/binary32 to a float */ |
|
|
1451 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1452 | ecb_function_ ecb_const float |
|
|
1453 | ecb_binary32_to_float (uint32_t x) |
|
|
1454 | { |
|
|
1455 | float r; |
|
|
1456 | |
|
|
1457 | #if ECB_STDFP |
|
|
1458 | memcpy (&r, &x, 4); |
|
|
1459 | #else |
|
|
1460 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1461 | int neg = x >> 31; |
|
|
1462 | int e = (x >> 23) & 0xffU; |
|
|
1463 | |
|
|
1464 | x &= 0x7fffffU; |
|
|
1465 | |
|
|
1466 | if (e) |
|
|
1467 | x |= 0x800000U; |
|
|
1468 | else |
|
|
1469 | e = 1; |
|
|
1470 | |
|
|
1471 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1472 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1473 | |
|
|
1474 | r = neg ? -r : r; |
|
|
1475 | #endif |
|
|
1476 | |
|
|
1477 | return r; |
|
|
1478 | } |
|
|
1479 | |
|
|
1480 | /* convert a double to ieee double/binary64 */ |
|
|
1481 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1482 | ecb_function_ ecb_const uint64_t |
|
|
1483 | ecb_double_to_binary64 (double x) |
|
|
1484 | { |
|
|
1485 | uint64_t r; |
|
|
1486 | |
|
|
1487 | #if ECB_STDFP |
|
|
1488 | memcpy (&r, &x, 8); |
|
|
1489 | #else |
|
|
1490 | /* slow emulation, works for anything but -0 */ |
|
|
1491 | uint64_t m; |
|
|
1492 | int e; |
|
|
1493 | |
|
|
1494 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1495 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1496 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1497 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1498 | |
|
|
1499 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1500 | |
|
|
1501 | r = m & 0x8000000000000000;; |
|
|
1502 | |
|
|
1503 | if (r) |
|
|
1504 | m = -m; |
|
|
1505 | |
|
|
1506 | if (e <= -1022) |
|
|
1507 | { |
|
|
1508 | m &= 0x1fffffffffffffU; |
|
|
1509 | m >>= (-1021 - e); |
|
|
1510 | e = -1022; |
|
|
1511 | } |
|
|
1512 | |
|
|
1513 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1514 | r |= m & 0xfffffffffffffU; |
|
|
1515 | #endif |
|
|
1516 | |
|
|
1517 | return r; |
|
|
1518 | } |
|
|
1519 | |
|
|
1520 | /* converts an ieee double/binary64 to a double */ |
|
|
1521 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1522 | ecb_function_ ecb_const double |
|
|
1523 | ecb_binary64_to_double (uint64_t x) |
|
|
1524 | { |
|
|
1525 | double r; |
|
|
1526 | |
|
|
1527 | #if ECB_STDFP |
|
|
1528 | memcpy (&r, &x, 8); |
|
|
1529 | #else |
|
|
1530 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1531 | int neg = x >> 63; |
|
|
1532 | int e = (x >> 52) & 0x7ffU; |
|
|
1533 | |
|
|
1534 | x &= 0xfffffffffffffU; |
|
|
1535 | |
|
|
1536 | if (e) |
|
|
1537 | x |= 0x10000000000000U; |
|
|
1538 | else |
|
|
1539 | e = 1; |
|
|
1540 | |
|
|
1541 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1542 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1543 | |
|
|
1544 | r = neg ? -r : r; |
|
|
1545 | #endif |
|
|
1546 | |
|
|
1547 | return r; |
|
|
1548 | } |
|
|
1549 | |
|
|
1550 | /* convert a float to ieee half/binary16 */ |
|
|
1551 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1552 | ecb_function_ ecb_const uint16_t |
|
|
1553 | ecb_float_to_binary16 (float x) |
|
|
1554 | { |
|
|
1555 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1556 | } |
|
|
1557 | |
|
|
1558 | /* convert an ieee half/binary16 to float */ |
|
|
1559 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1560 | ecb_function_ ecb_const float |
|
|
1561 | ecb_binary16_to_float (uint16_t x) |
|
|
1562 | { |
|
|
1563 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1564 | } |
|
|
1565 | |
|
|
1566 | #endif |
|
|
1567 | |
|
|
1568 | #endif |
|
|
1569 | |
|
|
1570 | /* ECB.H END */ |
|
|
1571 | |
|
|
1572 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1573 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1574 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1575 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1576 | * libev, in which cases the memory fences become nops. |
|
|
1577 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1578 | * which will then provide the memory fences. |
|
|
1579 | */ |
|
|
1580 | # error "memory fences not defined for your architecture, please report" |
|
|
1581 | #endif |
|
|
1582 | |
|
|
1583 | #ifndef ECB_MEMORY_FENCE |
|
|
1584 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1585 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1586 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1587 | #endif |
|
|
1588 | |
|
|
1589 | #define inline_size ecb_inline |
|
|
1590 | |
|
|
1591 | #if EV_FEATURE_CODE |
482 | # define inline_speed static inline |
1592 | # define inline_speed ecb_inline |
|
|
1593 | #else |
|
|
1594 | # define inline_speed ecb_noinline static |
483 | #endif |
1595 | #endif |
|
|
1596 | |
|
|
1597 | /*****************************************************************************/ |
|
|
1598 | /* raw syscall wrappers */ |
|
|
1599 | |
|
|
1600 | #if EV_NEED_SYSCALL |
|
|
1601 | |
|
|
1602 | #include <sys/syscall.h> |
|
|
1603 | |
|
|
1604 | /* |
|
|
1605 | * define some syscall wrappers for common architectures |
|
|
1606 | * this is mostly for nice looks during debugging, not performance. |
|
|
1607 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1608 | * enough for linux aio. |
|
|
1609 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1610 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1611 | */ |
|
|
1612 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1613 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1614 | |
|
|
1615 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1616 | ({ \ |
|
|
1617 | long res; \ |
|
|
1618 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1619 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1620 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1621 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1622 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1623 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1624 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1625 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1626 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1627 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1628 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1629 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1630 | __asm__ __volatile__ ( \ |
|
|
1631 | "syscall\n\t" \ |
|
|
1632 | : "=a" (res) \ |
|
|
1633 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1634 | : "cc", "r11", "cx", "memory"); \ |
|
|
1635 | errno = -res; \ |
|
|
1636 | res; \ |
|
|
1637 | }) |
|
|
1638 | |
|
|
1639 | #endif |
|
|
1640 | |
|
|
1641 | #ifdef ev_syscall |
|
|
1642 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1643 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1644 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1645 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1646 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1647 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1648 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1649 | #else |
|
|
1650 | #define ev_syscall0(nr) syscall (nr) |
|
|
1651 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1652 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1653 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1654 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1655 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1656 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1657 | #endif |
|
|
1658 | |
|
|
1659 | #endif |
|
|
1660 | |
|
|
1661 | /*****************************************************************************/ |
484 | |
1662 | |
485 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1663 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
486 | |
1664 | |
487 | #if EV_MINPRI == EV_MAXPRI |
1665 | #if EV_MINPRI == EV_MAXPRI |
488 | # define ABSPRI(w) (((W)w), 0) |
1666 | # define ABSPRI(w) (((W)w), 0) |
489 | #else |
1667 | #else |
490 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1668 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
491 | #endif |
1669 | #endif |
492 | |
1670 | |
493 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1671 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
494 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
495 | |
1672 | |
496 | typedef ev_watcher *W; |
1673 | typedef ev_watcher *W; |
497 | typedef ev_watcher_list *WL; |
1674 | typedef ev_watcher_list *WL; |
498 | typedef ev_watcher_time *WT; |
1675 | typedef ev_watcher_time *WT; |
499 | |
1676 | |
500 | #define ev_active(w) ((W)(w))->active |
1677 | #define ev_active(w) ((W)(w))->active |
501 | #define ev_at(w) ((WT)(w))->at |
1678 | #define ev_at(w) ((WT)(w))->at |
502 | |
1679 | |
503 | #if EV_USE_REALTIME |
1680 | #if EV_USE_REALTIME |
504 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1681 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
505 | /* giving it a reasonably high chance of working on typical architetcures */ |
1682 | /* giving it a reasonably high chance of working on typical architectures */ |
506 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1683 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
507 | #endif |
1684 | #endif |
508 | |
1685 | |
509 | #if EV_USE_MONOTONIC |
1686 | #if EV_USE_MONOTONIC |
510 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1687 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
524 | # include "ev_win32.c" |
1701 | # include "ev_win32.c" |
525 | #endif |
1702 | #endif |
526 | |
1703 | |
527 | /*****************************************************************************/ |
1704 | /*****************************************************************************/ |
528 | |
1705 | |
|
|
1706 | #if EV_USE_LINUXAIO |
|
|
1707 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1708 | #endif |
|
|
1709 | |
|
|
1710 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1711 | |
|
|
1712 | #if EV_USE_FLOOR |
|
|
1713 | # include <math.h> |
|
|
1714 | # define ev_floor(v) floor (v) |
|
|
1715 | #else |
|
|
1716 | |
|
|
1717 | #include <float.h> |
|
|
1718 | |
|
|
1719 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1720 | ecb_noinline |
|
|
1721 | static ev_tstamp |
|
|
1722 | ev_floor (ev_tstamp v) |
|
|
1723 | { |
|
|
1724 | /* the choice of shift factor is not terribly important */ |
|
|
1725 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1726 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1727 | #else |
|
|
1728 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1729 | #endif |
|
|
1730 | |
|
|
1731 | /* special treatment for negative arguments */ |
|
|
1732 | if (ecb_expect_false (v < 0.)) |
|
|
1733 | { |
|
|
1734 | ev_tstamp f = -ev_floor (-v); |
|
|
1735 | |
|
|
1736 | return f - (f == v ? 0 : 1); |
|
|
1737 | } |
|
|
1738 | |
|
|
1739 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1740 | if (ecb_expect_false (v >= shift)) |
|
|
1741 | { |
|
|
1742 | ev_tstamp f; |
|
|
1743 | |
|
|
1744 | if (v == v - 1.) |
|
|
1745 | return v; /* very large numbers are assumed to be integer */ |
|
|
1746 | |
|
|
1747 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1748 | return f + ev_floor (v - f); |
|
|
1749 | } |
|
|
1750 | |
|
|
1751 | /* fits into an unsigned long */ |
|
|
1752 | return (unsigned long)v; |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | #endif |
|
|
1756 | |
|
|
1757 | /*****************************************************************************/ |
|
|
1758 | |
|
|
1759 | #ifdef __linux |
|
|
1760 | # include <sys/utsname.h> |
|
|
1761 | #endif |
|
|
1762 | |
|
|
1763 | ecb_noinline ecb_cold |
|
|
1764 | static unsigned int |
|
|
1765 | ev_linux_version (void) |
|
|
1766 | { |
|
|
1767 | #ifdef __linux |
|
|
1768 | unsigned int v = 0; |
|
|
1769 | struct utsname buf; |
|
|
1770 | int i; |
|
|
1771 | char *p = buf.release; |
|
|
1772 | |
|
|
1773 | if (uname (&buf)) |
|
|
1774 | return 0; |
|
|
1775 | |
|
|
1776 | for (i = 3+1; --i; ) |
|
|
1777 | { |
|
|
1778 | unsigned int c = 0; |
|
|
1779 | |
|
|
1780 | for (;;) |
|
|
1781 | { |
|
|
1782 | if (*p >= '0' && *p <= '9') |
|
|
1783 | c = c * 10 + *p++ - '0'; |
|
|
1784 | else |
|
|
1785 | { |
|
|
1786 | p += *p == '.'; |
|
|
1787 | break; |
|
|
1788 | } |
|
|
1789 | } |
|
|
1790 | |
|
|
1791 | v = (v << 8) | c; |
|
|
1792 | } |
|
|
1793 | |
|
|
1794 | return v; |
|
|
1795 | #else |
|
|
1796 | return 0; |
|
|
1797 | #endif |
|
|
1798 | } |
|
|
1799 | |
|
|
1800 | /*****************************************************************************/ |
|
|
1801 | |
|
|
1802 | #if EV_AVOID_STDIO |
|
|
1803 | ecb_noinline ecb_cold |
|
|
1804 | static void |
|
|
1805 | ev_printerr (const char *msg) |
|
|
1806 | { |
|
|
1807 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1808 | } |
|
|
1809 | #endif |
|
|
1810 | |
529 | static void (*syserr_cb)(const char *msg); |
1811 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
530 | |
1812 | |
|
|
1813 | ecb_cold |
531 | void |
1814 | void |
532 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1815 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
533 | { |
1816 | { |
534 | syserr_cb = cb; |
1817 | syserr_cb = cb; |
535 | } |
1818 | } |
536 | |
1819 | |
537 | static void noinline |
1820 | ecb_noinline ecb_cold |
|
|
1821 | static void |
538 | ev_syserr (const char *msg) |
1822 | ev_syserr (const char *msg) |
539 | { |
1823 | { |
540 | if (!msg) |
1824 | if (!msg) |
541 | msg = "(libev) system error"; |
1825 | msg = "(libev) system error"; |
542 | |
1826 | |
543 | if (syserr_cb) |
1827 | if (syserr_cb) |
544 | syserr_cb (msg); |
1828 | syserr_cb (msg); |
545 | else |
1829 | else |
546 | { |
1830 | { |
547 | #if EV_AVOID_STDIO |
1831 | #if EV_AVOID_STDIO |
548 | write (STDERR_FILENO, msg, strlen (msg)); |
1832 | ev_printerr (msg); |
549 | write (STDERR_FILENO, ": ", 2); |
1833 | ev_printerr (": "); |
550 | msg = strerror (errno); |
1834 | ev_printerr (strerror (errno)); |
551 | write (STDERR_FILENO, msg, strlen (msg)); |
1835 | ev_printerr ("\n"); |
552 | write (STDERR_FILENO, "\n", 1); |
|
|
553 | #else |
1836 | #else |
554 | perror (msg); |
1837 | perror (msg); |
555 | #endif |
1838 | #endif |
556 | abort (); |
1839 | abort (); |
557 | } |
1840 | } |
558 | } |
1841 | } |
559 | |
1842 | |
560 | static void * |
1843 | static void * |
561 | ev_realloc_emul (void *ptr, long size) |
1844 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
562 | { |
1845 | { |
563 | /* some systems, notably openbsd and darwin, fail to properly |
1846 | /* some systems, notably openbsd and darwin, fail to properly |
564 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1847 | * implement realloc (x, 0) (as required by both ansi c-89 and |
565 | * the single unix specification, so work around them here. |
1848 | * the single unix specification, so work around them here. |
|
|
1849 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1850 | * despite documenting it otherwise. |
566 | */ |
1851 | */ |
567 | |
1852 | |
568 | if (size) |
1853 | if (size) |
569 | return realloc (ptr, size); |
1854 | return realloc (ptr, size); |
570 | |
1855 | |
571 | free (ptr); |
1856 | free (ptr); |
572 | return 0; |
1857 | return 0; |
573 | } |
1858 | } |
574 | |
1859 | |
575 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1860 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
576 | |
1861 | |
|
|
1862 | ecb_cold |
577 | void |
1863 | void |
578 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1864 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
579 | { |
1865 | { |
580 | alloc = cb; |
1866 | alloc = cb; |
581 | } |
1867 | } |
582 | |
1868 | |
583 | inline_speed void * |
1869 | inline_speed void * |
… | |
… | |
586 | ptr = alloc (ptr, size); |
1872 | ptr = alloc (ptr, size); |
587 | |
1873 | |
588 | if (!ptr && size) |
1874 | if (!ptr && size) |
589 | { |
1875 | { |
590 | #if EV_AVOID_STDIO |
1876 | #if EV_AVOID_STDIO |
591 | write (STDERR_FILENO, "libev: memory allocation failed, aborting.", |
1877 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
592 | sizeof ("libev: memory allocation failed, aborting.") - 1); |
|
|
593 | #else |
1878 | #else |
594 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1879 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
595 | #endif |
1880 | #endif |
596 | abort (); |
1881 | abort (); |
597 | } |
1882 | } |
598 | |
1883 | |
599 | return ptr; |
1884 | return ptr; |
… | |
… | |
611 | typedef struct |
1896 | typedef struct |
612 | { |
1897 | { |
613 | WL head; |
1898 | WL head; |
614 | unsigned char events; /* the events watched for */ |
1899 | unsigned char events; /* the events watched for */ |
615 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1900 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
616 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1901 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
617 | unsigned char unused; |
1902 | unsigned char eflags; /* flags field for use by backends */ |
618 | #if EV_USE_EPOLL |
1903 | #if EV_USE_EPOLL |
619 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1904 | unsigned int egen; /* generation counter to counter epoll bugs */ |
620 | #endif |
1905 | #endif |
621 | #if EV_SELECT_IS_WINSOCKET |
1906 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
622 | SOCKET handle; |
1907 | SOCKET handle; |
|
|
1908 | #endif |
|
|
1909 | #if EV_USE_IOCP |
|
|
1910 | OVERLAPPED or, ow; |
623 | #endif |
1911 | #endif |
624 | } ANFD; |
1912 | } ANFD; |
625 | |
1913 | |
626 | /* stores the pending event set for a given watcher */ |
1914 | /* stores the pending event set for a given watcher */ |
627 | typedef struct |
1915 | typedef struct |
… | |
… | |
669 | #undef VAR |
1957 | #undef VAR |
670 | }; |
1958 | }; |
671 | #include "ev_wrap.h" |
1959 | #include "ev_wrap.h" |
672 | |
1960 | |
673 | static struct ev_loop default_loop_struct; |
1961 | static struct ev_loop default_loop_struct; |
674 | struct ev_loop *ev_default_loop_ptr; |
1962 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
675 | |
1963 | |
676 | #else |
1964 | #else |
677 | |
1965 | |
678 | ev_tstamp ev_rt_now; |
1966 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
679 | #define VAR(name,decl) static decl; |
1967 | #define VAR(name,decl) static decl; |
680 | #include "ev_vars.h" |
1968 | #include "ev_vars.h" |
681 | #undef VAR |
1969 | #undef VAR |
682 | |
1970 | |
683 | static int ev_default_loop_ptr; |
1971 | static int ev_default_loop_ptr; |
684 | |
1972 | |
685 | #endif |
1973 | #endif |
686 | |
1974 | |
687 | #if EV_MINIMAL < 2 |
1975 | #if EV_FEATURE_API |
688 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1976 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
689 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1977 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
690 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1978 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
691 | #else |
1979 | #else |
692 | # define EV_RELEASE_CB (void)0 |
1980 | # define EV_RELEASE_CB (void)0 |
693 | # define EV_ACQUIRE_CB (void)0 |
1981 | # define EV_ACQUIRE_CB (void)0 |
694 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1982 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
695 | #endif |
1983 | #endif |
696 | |
1984 | |
697 | #define EVUNLOOP_RECURSE 0x80 |
1985 | #define EVBREAK_RECURSE 0x80 |
698 | |
1986 | |
699 | /*****************************************************************************/ |
1987 | /*****************************************************************************/ |
700 | |
1988 | |
701 | #ifndef EV_HAVE_EV_TIME |
1989 | #ifndef EV_HAVE_EV_TIME |
702 | ev_tstamp |
1990 | ev_tstamp |
703 | ev_time (void) |
1991 | ev_time (void) EV_NOEXCEPT |
704 | { |
1992 | { |
705 | #if EV_USE_REALTIME |
1993 | #if EV_USE_REALTIME |
706 | if (expect_true (have_realtime)) |
1994 | if (ecb_expect_true (have_realtime)) |
707 | { |
1995 | { |
708 | struct timespec ts; |
1996 | struct timespec ts; |
709 | clock_gettime (CLOCK_REALTIME, &ts); |
1997 | clock_gettime (CLOCK_REALTIME, &ts); |
710 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1998 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
711 | } |
1999 | } |
… | |
… | |
719 | |
2007 | |
720 | inline_size ev_tstamp |
2008 | inline_size ev_tstamp |
721 | get_clock (void) |
2009 | get_clock (void) |
722 | { |
2010 | { |
723 | #if EV_USE_MONOTONIC |
2011 | #if EV_USE_MONOTONIC |
724 | if (expect_true (have_monotonic)) |
2012 | if (ecb_expect_true (have_monotonic)) |
725 | { |
2013 | { |
726 | struct timespec ts; |
2014 | struct timespec ts; |
727 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2015 | clock_gettime (CLOCK_MONOTONIC, &ts); |
728 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2016 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
729 | } |
2017 | } |
… | |
… | |
732 | return ev_time (); |
2020 | return ev_time (); |
733 | } |
2021 | } |
734 | |
2022 | |
735 | #if EV_MULTIPLICITY |
2023 | #if EV_MULTIPLICITY |
736 | ev_tstamp |
2024 | ev_tstamp |
737 | ev_now (EV_P) |
2025 | ev_now (EV_P) EV_NOEXCEPT |
738 | { |
2026 | { |
739 | return ev_rt_now; |
2027 | return ev_rt_now; |
740 | } |
2028 | } |
741 | #endif |
2029 | #endif |
742 | |
2030 | |
743 | void |
2031 | void |
744 | ev_sleep (ev_tstamp delay) |
2032 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
745 | { |
2033 | { |
746 | if (delay > 0.) |
2034 | if (delay > 0.) |
747 | { |
2035 | { |
748 | #if EV_USE_NANOSLEEP |
2036 | #if EV_USE_NANOSLEEP |
749 | struct timespec ts; |
2037 | struct timespec ts; |
750 | |
2038 | |
751 | ts.tv_sec = (time_t)delay; |
2039 | EV_TS_SET (ts, delay); |
752 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
753 | |
|
|
754 | nanosleep (&ts, 0); |
2040 | nanosleep (&ts, 0); |
755 | #elif defined(_WIN32) |
2041 | #elif defined _WIN32 |
|
|
2042 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2043 | /* compared to select (µs) or nanosleep (ns) */ |
756 | Sleep ((unsigned long)(delay * 1e3)); |
2044 | Sleep ((unsigned long)(delay * 1e3)); |
757 | #else |
2045 | #else |
758 | struct timeval tv; |
2046 | struct timeval tv; |
759 | |
2047 | |
760 | tv.tv_sec = (time_t)delay; |
|
|
761 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
762 | |
|
|
763 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2048 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
764 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2049 | /* something not guaranteed by newer posix versions, but guaranteed */ |
765 | /* by older ones */ |
2050 | /* by older ones */ |
|
|
2051 | EV_TV_SET (tv, delay); |
766 | select (0, 0, 0, 0, &tv); |
2052 | select (0, 0, 0, 0, &tv); |
767 | #endif |
2053 | #endif |
768 | } |
2054 | } |
769 | } |
2055 | } |
770 | |
2056 | |
771 | /*****************************************************************************/ |
2057 | /*****************************************************************************/ |
772 | |
2058 | |
773 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
2059 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
774 | |
2060 | |
775 | /* find a suitable new size for the given array, */ |
2061 | /* find a suitable new size for the given array, */ |
776 | /* hopefully by rounding to a ncie-to-malloc size */ |
2062 | /* hopefully by rounding to a nice-to-malloc size */ |
777 | inline_size int |
2063 | inline_size int |
778 | array_nextsize (int elem, int cur, int cnt) |
2064 | array_nextsize (int elem, int cur, int cnt) |
779 | { |
2065 | { |
780 | int ncur = cur + 1; |
2066 | int ncur = cur + 1; |
781 | |
2067 | |
782 | do |
2068 | do |
783 | ncur <<= 1; |
2069 | ncur <<= 1; |
784 | while (cnt > ncur); |
2070 | while (cnt > ncur); |
785 | |
2071 | |
786 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2072 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
787 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2073 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
788 | { |
2074 | { |
789 | ncur *= elem; |
2075 | ncur *= elem; |
790 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2076 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
791 | ncur = ncur - sizeof (void *) * 4; |
2077 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
793 | } |
2079 | } |
794 | |
2080 | |
795 | return ncur; |
2081 | return ncur; |
796 | } |
2082 | } |
797 | |
2083 | |
798 | static noinline void * |
2084 | ecb_noinline ecb_cold |
|
|
2085 | static void * |
799 | array_realloc (int elem, void *base, int *cur, int cnt) |
2086 | array_realloc (int elem, void *base, int *cur, int cnt) |
800 | { |
2087 | { |
801 | *cur = array_nextsize (elem, *cur, cnt); |
2088 | *cur = array_nextsize (elem, *cur, cnt); |
802 | return ev_realloc (base, elem * *cur); |
2089 | return ev_realloc (base, elem * *cur); |
803 | } |
2090 | } |
804 | |
2091 | |
|
|
2092 | #define array_needsize_noinit(base,offset,count) |
|
|
2093 | |
805 | #define array_init_zero(base,count) \ |
2094 | #define array_needsize_zerofill(base,offset,count) \ |
806 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2095 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
807 | |
2096 | |
808 | #define array_needsize(type,base,cur,cnt,init) \ |
2097 | #define array_needsize(type,base,cur,cnt,init) \ |
809 | if (expect_false ((cnt) > (cur))) \ |
2098 | if (ecb_expect_false ((cnt) > (cur))) \ |
810 | { \ |
2099 | { \ |
811 | int ocur_ = (cur); \ |
2100 | ecb_unused int ocur_ = (cur); \ |
812 | (base) = (type *)array_realloc \ |
2101 | (base) = (type *)array_realloc \ |
813 | (sizeof (type), (base), &(cur), (cnt)); \ |
2102 | (sizeof (type), (base), &(cur), (cnt)); \ |
814 | init ((base) + (ocur_), (cur) - ocur_); \ |
2103 | init ((base), ocur_, ((cur) - ocur_)); \ |
815 | } |
2104 | } |
816 | |
2105 | |
817 | #if 0 |
2106 | #if 0 |
818 | #define array_slim(type,stem) \ |
2107 | #define array_slim(type,stem) \ |
819 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2108 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
828 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2117 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
829 | |
2118 | |
830 | /*****************************************************************************/ |
2119 | /*****************************************************************************/ |
831 | |
2120 | |
832 | /* dummy callback for pending events */ |
2121 | /* dummy callback for pending events */ |
833 | static void noinline |
2122 | ecb_noinline |
|
|
2123 | static void |
834 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2124 | pendingcb (EV_P_ ev_prepare *w, int revents) |
835 | { |
2125 | { |
836 | } |
2126 | } |
837 | |
2127 | |
838 | void noinline |
2128 | ecb_noinline |
|
|
2129 | void |
839 | ev_feed_event (EV_P_ void *w, int revents) |
2130 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
840 | { |
2131 | { |
841 | W w_ = (W)w; |
2132 | W w_ = (W)w; |
842 | int pri = ABSPRI (w_); |
2133 | int pri = ABSPRI (w_); |
843 | |
2134 | |
844 | if (expect_false (w_->pending)) |
2135 | if (ecb_expect_false (w_->pending)) |
845 | pendings [pri][w_->pending - 1].events |= revents; |
2136 | pendings [pri][w_->pending - 1].events |= revents; |
846 | else |
2137 | else |
847 | { |
2138 | { |
848 | w_->pending = ++pendingcnt [pri]; |
2139 | w_->pending = ++pendingcnt [pri]; |
849 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2140 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
850 | pendings [pri][w_->pending - 1].w = w_; |
2141 | pendings [pri][w_->pending - 1].w = w_; |
851 | pendings [pri][w_->pending - 1].events = revents; |
2142 | pendings [pri][w_->pending - 1].events = revents; |
852 | } |
2143 | } |
|
|
2144 | |
|
|
2145 | pendingpri = NUMPRI - 1; |
853 | } |
2146 | } |
854 | |
2147 | |
855 | inline_speed void |
2148 | inline_speed void |
856 | feed_reverse (EV_P_ W w) |
2149 | feed_reverse (EV_P_ W w) |
857 | { |
2150 | { |
858 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2151 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
859 | rfeeds [rfeedcnt++] = w; |
2152 | rfeeds [rfeedcnt++] = w; |
860 | } |
2153 | } |
861 | |
2154 | |
862 | inline_size void |
2155 | inline_size void |
863 | feed_reverse_done (EV_P_ int revents) |
2156 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
877 | } |
2170 | } |
878 | |
2171 | |
879 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
880 | |
2173 | |
881 | inline_speed void |
2174 | inline_speed void |
882 | fd_event_nc (EV_P_ int fd, int revents) |
2175 | fd_event_nocheck (EV_P_ int fd, int revents) |
883 | { |
2176 | { |
884 | ANFD *anfd = anfds + fd; |
2177 | ANFD *anfd = anfds + fd; |
885 | ev_io *w; |
2178 | ev_io *w; |
886 | |
2179 | |
887 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2180 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
898 | inline_speed void |
2191 | inline_speed void |
899 | fd_event (EV_P_ int fd, int revents) |
2192 | fd_event (EV_P_ int fd, int revents) |
900 | { |
2193 | { |
901 | ANFD *anfd = anfds + fd; |
2194 | ANFD *anfd = anfds + fd; |
902 | |
2195 | |
903 | if (expect_true (!anfd->reify)) |
2196 | if (ecb_expect_true (!anfd->reify)) |
904 | fd_event_nc (EV_A_ fd, revents); |
2197 | fd_event_nocheck (EV_A_ fd, revents); |
905 | } |
2198 | } |
906 | |
2199 | |
907 | void |
2200 | void |
908 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2201 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
909 | { |
2202 | { |
910 | if (fd >= 0 && fd < anfdmax) |
2203 | if (fd >= 0 && fd < anfdmax) |
911 | fd_event_nc (EV_A_ fd, revents); |
2204 | fd_event_nocheck (EV_A_ fd, revents); |
912 | } |
2205 | } |
913 | |
2206 | |
914 | /* make sure the external fd watch events are in-sync */ |
2207 | /* make sure the external fd watch events are in-sync */ |
915 | /* with the kernel/libev internal state */ |
2208 | /* with the kernel/libev internal state */ |
916 | inline_size void |
2209 | inline_size void |
917 | fd_reify (EV_P) |
2210 | fd_reify (EV_P) |
918 | { |
2211 | { |
919 | int i; |
2212 | int i; |
920 | |
2213 | |
|
|
2214 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2215 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2216 | { |
|
|
2217 | int fd = fdchanges [i]; |
|
|
2218 | ANFD *anfd = anfds + fd; |
|
|
2219 | |
|
|
2220 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2221 | { |
|
|
2222 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2223 | |
|
|
2224 | if (handle != anfd->handle) |
|
|
2225 | { |
|
|
2226 | unsigned long arg; |
|
|
2227 | |
|
|
2228 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2229 | |
|
|
2230 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2231 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2232 | anfd->events = 0; |
|
|
2233 | anfd->handle = handle; |
|
|
2234 | } |
|
|
2235 | } |
|
|
2236 | } |
|
|
2237 | #endif |
|
|
2238 | |
921 | for (i = 0; i < fdchangecnt; ++i) |
2239 | for (i = 0; i < fdchangecnt; ++i) |
922 | { |
2240 | { |
923 | int fd = fdchanges [i]; |
2241 | int fd = fdchanges [i]; |
924 | ANFD *anfd = anfds + fd; |
2242 | ANFD *anfd = anfds + fd; |
925 | ev_io *w; |
2243 | ev_io *w; |
926 | |
2244 | |
927 | unsigned char events = 0; |
2245 | unsigned char o_events = anfd->events; |
|
|
2246 | unsigned char o_reify = anfd->reify; |
928 | |
2247 | |
929 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2248 | anfd->reify = 0; |
930 | events |= (unsigned char)w->events; |
|
|
931 | |
2249 | |
932 | #if EV_SELECT_IS_WINSOCKET |
2250 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
933 | if (events) |
|
|
934 | { |
2251 | { |
935 | unsigned long arg; |
2252 | anfd->events = 0; |
936 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2253 | |
937 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
2254 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
2255 | anfd->events |= (unsigned char)w->events; |
|
|
2256 | |
|
|
2257 | if (o_events != anfd->events) |
|
|
2258 | o_reify = EV__IOFDSET; /* actually |= */ |
938 | } |
2259 | } |
939 | #endif |
|
|
940 | |
2260 | |
941 | { |
2261 | if (o_reify & EV__IOFDSET) |
942 | unsigned char o_events = anfd->events; |
|
|
943 | unsigned char o_reify = anfd->reify; |
|
|
944 | |
|
|
945 | anfd->reify = 0; |
|
|
946 | anfd->events = events; |
|
|
947 | |
|
|
948 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
949 | backend_modify (EV_A_ fd, o_events, events); |
2262 | backend_modify (EV_A_ fd, o_events, anfd->events); |
950 | } |
|
|
951 | } |
2263 | } |
952 | |
2264 | |
953 | fdchangecnt = 0; |
2265 | fdchangecnt = 0; |
954 | } |
2266 | } |
955 | |
2267 | |
956 | /* something about the given fd changed */ |
2268 | /* something about the given fd changed */ |
957 | inline_size void |
2269 | inline_size |
|
|
2270 | void |
958 | fd_change (EV_P_ int fd, int flags) |
2271 | fd_change (EV_P_ int fd, int flags) |
959 | { |
2272 | { |
960 | unsigned char reify = anfds [fd].reify; |
2273 | unsigned char reify = anfds [fd].reify; |
961 | anfds [fd].reify |= flags; |
2274 | anfds [fd].reify |= flags; |
962 | |
2275 | |
963 | if (expect_true (!reify)) |
2276 | if (ecb_expect_true (!reify)) |
964 | { |
2277 | { |
965 | ++fdchangecnt; |
2278 | ++fdchangecnt; |
966 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2279 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
967 | fdchanges [fdchangecnt - 1] = fd; |
2280 | fdchanges [fdchangecnt - 1] = fd; |
968 | } |
2281 | } |
969 | } |
2282 | } |
970 | |
2283 | |
971 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2284 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
972 | inline_speed void |
2285 | inline_speed ecb_cold void |
973 | fd_kill (EV_P_ int fd) |
2286 | fd_kill (EV_P_ int fd) |
974 | { |
2287 | { |
975 | ev_io *w; |
2288 | ev_io *w; |
976 | |
2289 | |
977 | while ((w = (ev_io *)anfds [fd].head)) |
2290 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
979 | ev_io_stop (EV_A_ w); |
2292 | ev_io_stop (EV_A_ w); |
980 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2293 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
981 | } |
2294 | } |
982 | } |
2295 | } |
983 | |
2296 | |
984 | /* check whether the given fd is atcually valid, for error recovery */ |
2297 | /* check whether the given fd is actually valid, for error recovery */ |
985 | inline_size int |
2298 | inline_size ecb_cold int |
986 | fd_valid (int fd) |
2299 | fd_valid (int fd) |
987 | { |
2300 | { |
988 | #ifdef _WIN32 |
2301 | #ifdef _WIN32 |
989 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2302 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
990 | #else |
2303 | #else |
991 | return fcntl (fd, F_GETFD) != -1; |
2304 | return fcntl (fd, F_GETFD) != -1; |
992 | #endif |
2305 | #endif |
993 | } |
2306 | } |
994 | |
2307 | |
995 | /* called on EBADF to verify fds */ |
2308 | /* called on EBADF to verify fds */ |
996 | static void noinline |
2309 | ecb_noinline ecb_cold |
|
|
2310 | static void |
997 | fd_ebadf (EV_P) |
2311 | fd_ebadf (EV_P) |
998 | { |
2312 | { |
999 | int fd; |
2313 | int fd; |
1000 | |
2314 | |
1001 | for (fd = 0; fd < anfdmax; ++fd) |
2315 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1003 | if (!fd_valid (fd) && errno == EBADF) |
2317 | if (!fd_valid (fd) && errno == EBADF) |
1004 | fd_kill (EV_A_ fd); |
2318 | fd_kill (EV_A_ fd); |
1005 | } |
2319 | } |
1006 | |
2320 | |
1007 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2321 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1008 | static void noinline |
2322 | ecb_noinline ecb_cold |
|
|
2323 | static void |
1009 | fd_enomem (EV_P) |
2324 | fd_enomem (EV_P) |
1010 | { |
2325 | { |
1011 | int fd; |
2326 | int fd; |
1012 | |
2327 | |
1013 | for (fd = anfdmax; fd--; ) |
2328 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1017 | break; |
2332 | break; |
1018 | } |
2333 | } |
1019 | } |
2334 | } |
1020 | |
2335 | |
1021 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2336 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1022 | static void noinline |
2337 | ecb_noinline |
|
|
2338 | static void |
1023 | fd_rearm_all (EV_P) |
2339 | fd_rearm_all (EV_P) |
1024 | { |
2340 | { |
1025 | int fd; |
2341 | int fd; |
1026 | |
2342 | |
1027 | for (fd = 0; fd < anfdmax; ++fd) |
2343 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1031 | anfds [fd].emask = 0; |
2347 | anfds [fd].emask = 0; |
1032 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
2348 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1033 | } |
2349 | } |
1034 | } |
2350 | } |
1035 | |
2351 | |
|
|
2352 | /* used to prepare libev internal fd's */ |
|
|
2353 | /* this is not fork-safe */ |
|
|
2354 | inline_speed void |
|
|
2355 | fd_intern (int fd) |
|
|
2356 | { |
|
|
2357 | #ifdef _WIN32 |
|
|
2358 | unsigned long arg = 1; |
|
|
2359 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2360 | #else |
|
|
2361 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2362 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2363 | #endif |
|
|
2364 | } |
|
|
2365 | |
1036 | /*****************************************************************************/ |
2366 | /*****************************************************************************/ |
1037 | |
2367 | |
1038 | /* |
2368 | /* |
1039 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2369 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1040 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2370 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1041 | * the branching factor of the d-tree. |
2371 | * the branching factor of the d-tree. |
1042 | */ |
2372 | */ |
1043 | |
2373 | |
1044 | /* |
2374 | /* |
… | |
… | |
1066 | ev_tstamp minat; |
2396 | ev_tstamp minat; |
1067 | ANHE *minpos; |
2397 | ANHE *minpos; |
1068 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2398 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1069 | |
2399 | |
1070 | /* find minimum child */ |
2400 | /* find minimum child */ |
1071 | if (expect_true (pos + DHEAP - 1 < E)) |
2401 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1072 | { |
2402 | { |
1073 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2403 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1074 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2404 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1075 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2405 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1076 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2406 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
… | |
… | |
1192 | |
2522 | |
1193 | static ANSIG signals [EV_NSIG - 1]; |
2523 | static ANSIG signals [EV_NSIG - 1]; |
1194 | |
2524 | |
1195 | /*****************************************************************************/ |
2525 | /*****************************************************************************/ |
1196 | |
2526 | |
1197 | /* used to prepare libev internal fd's */ |
2527 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1198 | /* this is not fork-safe */ |
2528 | |
|
|
2529 | ecb_noinline ecb_cold |
|
|
2530 | static void |
|
|
2531 | evpipe_init (EV_P) |
|
|
2532 | { |
|
|
2533 | if (!ev_is_active (&pipe_w)) |
|
|
2534 | { |
|
|
2535 | int fds [2]; |
|
|
2536 | |
|
|
2537 | # if EV_USE_EVENTFD |
|
|
2538 | fds [0] = -1; |
|
|
2539 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2540 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2541 | fds [1] = eventfd (0, 0); |
|
|
2542 | |
|
|
2543 | if (fds [1] < 0) |
|
|
2544 | # endif |
|
|
2545 | { |
|
|
2546 | while (pipe (fds)) |
|
|
2547 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2548 | |
|
|
2549 | fd_intern (fds [0]); |
|
|
2550 | } |
|
|
2551 | |
|
|
2552 | evpipe [0] = fds [0]; |
|
|
2553 | |
|
|
2554 | if (evpipe [1] < 0) |
|
|
2555 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2556 | else |
|
|
2557 | { |
|
|
2558 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2559 | /* so that evpipe_write can always rely on its value. */ |
|
|
2560 | /* this branch does not do anything sensible on windows, */ |
|
|
2561 | /* so must not be executed on windows */ |
|
|
2562 | |
|
|
2563 | dup2 (fds [1], evpipe [1]); |
|
|
2564 | close (fds [1]); |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | fd_intern (evpipe [1]); |
|
|
2568 | |
|
|
2569 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2570 | ev_io_start (EV_A_ &pipe_w); |
|
|
2571 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2572 | } |
|
|
2573 | } |
|
|
2574 | |
1199 | inline_speed void |
2575 | inline_speed void |
1200 | fd_intern (int fd) |
2576 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1201 | { |
2577 | { |
1202 | #ifdef _WIN32 |
2578 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1203 | unsigned long arg = 1; |
|
|
1204 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1205 | #else |
|
|
1206 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1207 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1208 | #endif |
|
|
1209 | } |
|
|
1210 | |
2579 | |
1211 | static void noinline |
2580 | if (ecb_expect_true (*flag)) |
1212 | evpipe_init (EV_P) |
2581 | return; |
1213 | { |
2582 | |
1214 | if (!ev_is_active (&pipe_w)) |
2583 | *flag = 1; |
|
|
2584 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2585 | |
|
|
2586 | pipe_write_skipped = 1; |
|
|
2587 | |
|
|
2588 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2589 | |
|
|
2590 | if (pipe_write_wanted) |
1215 | { |
2591 | { |
|
|
2592 | int old_errno; |
|
|
2593 | |
|
|
2594 | pipe_write_skipped = 0; |
|
|
2595 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2596 | |
|
|
2597 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2598 | |
1216 | #if EV_USE_EVENTFD |
2599 | #if EV_USE_EVENTFD |
1217 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2600 | if (evpipe [0] < 0) |
1218 | if (evfd < 0 && errno == EINVAL) |
|
|
1219 | evfd = eventfd (0, 0); |
|
|
1220 | |
|
|
1221 | if (evfd >= 0) |
|
|
1222 | { |
2601 | { |
1223 | evpipe [0] = -1; |
2602 | uint64_t counter = 1; |
1224 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2603 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1225 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1226 | } |
2604 | } |
1227 | else |
2605 | else |
1228 | #endif |
2606 | #endif |
1229 | { |
2607 | { |
1230 | while (pipe (evpipe)) |
2608 | #ifdef _WIN32 |
1231 | ev_syserr ("(libev) error creating signal/async pipe"); |
2609 | WSABUF buf; |
1232 | |
2610 | DWORD sent; |
1233 | fd_intern (evpipe [0]); |
2611 | buf.buf = (char *)&buf; |
1234 | fd_intern (evpipe [1]); |
2612 | buf.len = 1; |
1235 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2613 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2614 | #else |
|
|
2615 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2616 | #endif |
1236 | } |
2617 | } |
1237 | |
|
|
1238 | ev_io_start (EV_A_ &pipe_w); |
|
|
1239 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1240 | } |
|
|
1241 | } |
|
|
1242 | |
|
|
1243 | inline_size void |
|
|
1244 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1245 | { |
|
|
1246 | if (!*flag) |
|
|
1247 | { |
|
|
1248 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1249 | |
|
|
1250 | *flag = 1; |
|
|
1251 | |
|
|
1252 | #if EV_USE_EVENTFD |
|
|
1253 | if (evfd >= 0) |
|
|
1254 | { |
|
|
1255 | uint64_t counter = 1; |
|
|
1256 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1257 | } |
|
|
1258 | else |
|
|
1259 | #endif |
|
|
1260 | write (evpipe [1], &old_errno, 1); |
|
|
1261 | |
2618 | |
1262 | errno = old_errno; |
2619 | errno = old_errno; |
1263 | } |
2620 | } |
1264 | } |
2621 | } |
1265 | |
2622 | |
… | |
… | |
1268 | static void |
2625 | static void |
1269 | pipecb (EV_P_ ev_io *iow, int revents) |
2626 | pipecb (EV_P_ ev_io *iow, int revents) |
1270 | { |
2627 | { |
1271 | int i; |
2628 | int i; |
1272 | |
2629 | |
|
|
2630 | if (revents & EV_READ) |
|
|
2631 | { |
1273 | #if EV_USE_EVENTFD |
2632 | #if EV_USE_EVENTFD |
1274 | if (evfd >= 0) |
2633 | if (evpipe [0] < 0) |
1275 | { |
2634 | { |
1276 | uint64_t counter; |
2635 | uint64_t counter; |
1277 | read (evfd, &counter, sizeof (uint64_t)); |
2636 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1278 | } |
2637 | } |
1279 | else |
2638 | else |
1280 | #endif |
2639 | #endif |
1281 | { |
2640 | { |
1282 | char dummy; |
2641 | char dummy[4]; |
|
|
2642 | #ifdef _WIN32 |
|
|
2643 | WSABUF buf; |
|
|
2644 | DWORD recvd; |
|
|
2645 | DWORD flags = 0; |
|
|
2646 | buf.buf = dummy; |
|
|
2647 | buf.len = sizeof (dummy); |
|
|
2648 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2649 | #else |
1283 | read (evpipe [0], &dummy, 1); |
2650 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2651 | #endif |
|
|
2652 | } |
1284 | } |
2653 | } |
1285 | |
2654 | |
|
|
2655 | pipe_write_skipped = 0; |
|
|
2656 | |
|
|
2657 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2658 | |
|
|
2659 | #if EV_SIGNAL_ENABLE |
1286 | if (sig_pending) |
2660 | if (sig_pending) |
1287 | { |
2661 | { |
1288 | sig_pending = 0; |
2662 | sig_pending = 0; |
1289 | |
2663 | |
|
|
2664 | ECB_MEMORY_FENCE; |
|
|
2665 | |
1290 | for (i = EV_NSIG - 1; i--; ) |
2666 | for (i = EV_NSIG - 1; i--; ) |
1291 | if (expect_false (signals [i].pending)) |
2667 | if (ecb_expect_false (signals [i].pending)) |
1292 | ev_feed_signal_event (EV_A_ i + 1); |
2668 | ev_feed_signal_event (EV_A_ i + 1); |
1293 | } |
2669 | } |
|
|
2670 | #endif |
1294 | |
2671 | |
1295 | #if EV_ASYNC_ENABLE |
2672 | #if EV_ASYNC_ENABLE |
1296 | if (async_pending) |
2673 | if (async_pending) |
1297 | { |
2674 | { |
1298 | async_pending = 0; |
2675 | async_pending = 0; |
|
|
2676 | |
|
|
2677 | ECB_MEMORY_FENCE; |
1299 | |
2678 | |
1300 | for (i = asynccnt; i--; ) |
2679 | for (i = asynccnt; i--; ) |
1301 | if (asyncs [i]->sent) |
2680 | if (asyncs [i]->sent) |
1302 | { |
2681 | { |
1303 | asyncs [i]->sent = 0; |
2682 | asyncs [i]->sent = 0; |
|
|
2683 | ECB_MEMORY_FENCE_RELEASE; |
1304 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2684 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1305 | } |
2685 | } |
1306 | } |
2686 | } |
1307 | #endif |
2687 | #endif |
1308 | } |
2688 | } |
1309 | |
2689 | |
1310 | /*****************************************************************************/ |
2690 | /*****************************************************************************/ |
1311 | |
2691 | |
|
|
2692 | void |
|
|
2693 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2694 | { |
|
|
2695 | #if EV_MULTIPLICITY |
|
|
2696 | EV_P; |
|
|
2697 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2698 | EV_A = signals [signum - 1].loop; |
|
|
2699 | |
|
|
2700 | if (!EV_A) |
|
|
2701 | return; |
|
|
2702 | #endif |
|
|
2703 | |
|
|
2704 | signals [signum - 1].pending = 1; |
|
|
2705 | evpipe_write (EV_A_ &sig_pending); |
|
|
2706 | } |
|
|
2707 | |
1312 | static void |
2708 | static void |
1313 | ev_sighandler (int signum) |
2709 | ev_sighandler (int signum) |
1314 | { |
2710 | { |
1315 | #if EV_MULTIPLICITY |
|
|
1316 | EV_P = signals [signum - 1].loop; |
|
|
1317 | #endif |
|
|
1318 | |
|
|
1319 | #ifdef _WIN32 |
2711 | #ifdef _WIN32 |
1320 | signal (signum, ev_sighandler); |
2712 | signal (signum, ev_sighandler); |
1321 | #endif |
2713 | #endif |
1322 | |
2714 | |
1323 | signals [signum - 1].pending = 1; |
2715 | ev_feed_signal (signum); |
1324 | evpipe_write (EV_A_ &sig_pending); |
|
|
1325 | } |
2716 | } |
1326 | |
2717 | |
1327 | void noinline |
2718 | ecb_noinline |
|
|
2719 | void |
1328 | ev_feed_signal_event (EV_P_ int signum) |
2720 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1329 | { |
2721 | { |
1330 | WL w; |
2722 | WL w; |
1331 | |
2723 | |
1332 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2724 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1333 | return; |
2725 | return; |
1334 | |
2726 | |
1335 | --signum; |
2727 | --signum; |
1336 | |
2728 | |
1337 | #if EV_MULTIPLICITY |
2729 | #if EV_MULTIPLICITY |
1338 | /* it is permissible to try to feed a signal to the wrong loop */ |
2730 | /* it is permissible to try to feed a signal to the wrong loop */ |
1339 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2731 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1340 | |
2732 | |
1341 | if (expect_false (signals [signum].loop != EV_A)) |
2733 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1342 | return; |
2734 | return; |
1343 | #endif |
2735 | #endif |
1344 | |
2736 | |
1345 | signals [signum].pending = 0; |
2737 | signals [signum].pending = 0; |
|
|
2738 | ECB_MEMORY_FENCE_RELEASE; |
1346 | |
2739 | |
1347 | for (w = signals [signum].head; w; w = w->next) |
2740 | for (w = signals [signum].head; w; w = w->next) |
1348 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2741 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1349 | } |
2742 | } |
1350 | |
2743 | |
… | |
… | |
1366 | break; |
2759 | break; |
1367 | } |
2760 | } |
1368 | } |
2761 | } |
1369 | #endif |
2762 | #endif |
1370 | |
2763 | |
|
|
2764 | #endif |
|
|
2765 | |
1371 | /*****************************************************************************/ |
2766 | /*****************************************************************************/ |
1372 | |
2767 | |
|
|
2768 | #if EV_CHILD_ENABLE |
1373 | static WL childs [EV_PID_HASHSIZE]; |
2769 | static WL childs [EV_PID_HASHSIZE]; |
1374 | |
|
|
1375 | #ifndef _WIN32 |
|
|
1376 | |
2770 | |
1377 | static ev_signal childev; |
2771 | static ev_signal childev; |
1378 | |
2772 | |
1379 | #ifndef WIFCONTINUED |
2773 | #ifndef WIFCONTINUED |
1380 | # define WIFCONTINUED(status) 0 |
2774 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1385 | child_reap (EV_P_ int chain, int pid, int status) |
2779 | child_reap (EV_P_ int chain, int pid, int status) |
1386 | { |
2780 | { |
1387 | ev_child *w; |
2781 | ev_child *w; |
1388 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2782 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1389 | |
2783 | |
1390 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2784 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1391 | { |
2785 | { |
1392 | if ((w->pid == pid || !w->pid) |
2786 | if ((w->pid == pid || !w->pid) |
1393 | && (!traced || (w->flags & 1))) |
2787 | && (!traced || (w->flags & 1))) |
1394 | { |
2788 | { |
1395 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2789 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1420 | /* make sure we are called again until all children have been reaped */ |
2814 | /* make sure we are called again until all children have been reaped */ |
1421 | /* we need to do it this way so that the callback gets called before we continue */ |
2815 | /* we need to do it this way so that the callback gets called before we continue */ |
1422 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2816 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1423 | |
2817 | |
1424 | child_reap (EV_A_ pid, pid, status); |
2818 | child_reap (EV_A_ pid, pid, status); |
1425 | if (EV_PID_HASHSIZE > 1) |
2819 | if ((EV_PID_HASHSIZE) > 1) |
1426 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2820 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1427 | } |
2821 | } |
1428 | |
2822 | |
1429 | #endif |
2823 | #endif |
1430 | |
2824 | |
1431 | /*****************************************************************************/ |
2825 | /*****************************************************************************/ |
1432 | |
2826 | |
|
|
2827 | #if EV_USE_IOCP |
|
|
2828 | # include "ev_iocp.c" |
|
|
2829 | #endif |
1433 | #if EV_USE_PORT |
2830 | #if EV_USE_PORT |
1434 | # include "ev_port.c" |
2831 | # include "ev_port.c" |
1435 | #endif |
2832 | #endif |
1436 | #if EV_USE_KQUEUE |
2833 | #if EV_USE_KQUEUE |
1437 | # include "ev_kqueue.c" |
2834 | # include "ev_kqueue.c" |
1438 | #endif |
2835 | #endif |
1439 | #if EV_USE_EPOLL |
2836 | #if EV_USE_EPOLL |
1440 | # include "ev_epoll.c" |
2837 | # include "ev_epoll.c" |
1441 | #endif |
2838 | #endif |
|
|
2839 | #if EV_USE_LINUXAIO |
|
|
2840 | # include "ev_linuxaio.c" |
|
|
2841 | #endif |
|
|
2842 | #if EV_USE_IOURING |
|
|
2843 | # include "ev_iouring.c" |
|
|
2844 | #endif |
1442 | #if EV_USE_POLL |
2845 | #if EV_USE_POLL |
1443 | # include "ev_poll.c" |
2846 | # include "ev_poll.c" |
1444 | #endif |
2847 | #endif |
1445 | #if EV_USE_SELECT |
2848 | #if EV_USE_SELECT |
1446 | # include "ev_select.c" |
2849 | # include "ev_select.c" |
1447 | #endif |
2850 | #endif |
1448 | |
2851 | |
1449 | int |
2852 | ecb_cold int |
1450 | ev_version_major (void) |
2853 | ev_version_major (void) EV_NOEXCEPT |
1451 | { |
2854 | { |
1452 | return EV_VERSION_MAJOR; |
2855 | return EV_VERSION_MAJOR; |
1453 | } |
2856 | } |
1454 | |
2857 | |
1455 | int |
2858 | ecb_cold int |
1456 | ev_version_minor (void) |
2859 | ev_version_minor (void) EV_NOEXCEPT |
1457 | { |
2860 | { |
1458 | return EV_VERSION_MINOR; |
2861 | return EV_VERSION_MINOR; |
1459 | } |
2862 | } |
1460 | |
2863 | |
1461 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2864 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1462 | int inline_size |
2865 | inline_size ecb_cold int |
1463 | enable_secure (void) |
2866 | enable_secure (void) |
1464 | { |
2867 | { |
1465 | #ifdef _WIN32 |
2868 | #ifdef _WIN32 |
1466 | return 0; |
2869 | return 0; |
1467 | #else |
2870 | #else |
1468 | return getuid () != geteuid () |
2871 | return getuid () != geteuid () |
1469 | || getgid () != getegid (); |
2872 | || getgid () != getegid (); |
1470 | #endif |
2873 | #endif |
1471 | } |
2874 | } |
1472 | |
2875 | |
|
|
2876 | ecb_cold |
1473 | unsigned int |
2877 | unsigned int |
1474 | ev_supported_backends (void) |
2878 | ev_supported_backends (void) EV_NOEXCEPT |
1475 | { |
2879 | { |
1476 | unsigned int flags = 0; |
2880 | unsigned int flags = 0; |
1477 | |
2881 | |
1478 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2882 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1479 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2883 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1480 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2884 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2885 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2886 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
1481 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2887 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1482 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2888 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1483 | |
2889 | |
1484 | return flags; |
2890 | return flags; |
1485 | } |
2891 | } |
1486 | |
2892 | |
|
|
2893 | ecb_cold |
1487 | unsigned int |
2894 | unsigned int |
1488 | ev_recommended_backends (void) |
2895 | ev_recommended_backends (void) EV_NOEXCEPT |
1489 | { |
2896 | { |
1490 | unsigned int flags = ev_supported_backends (); |
2897 | unsigned int flags = ev_supported_backends (); |
1491 | |
2898 | |
1492 | #ifndef __NetBSD__ |
2899 | #ifndef __NetBSD__ |
1493 | /* kqueue is borked on everything but netbsd apparently */ |
2900 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1497 | #ifdef __APPLE__ |
2904 | #ifdef __APPLE__ |
1498 | /* only select works correctly on that "unix-certified" platform */ |
2905 | /* only select works correctly on that "unix-certified" platform */ |
1499 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2906 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1500 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2907 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1501 | #endif |
2908 | #endif |
|
|
2909 | #ifdef __FreeBSD__ |
|
|
2910 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2911 | #endif |
|
|
2912 | |
|
|
2913 | /* TODO: linuxaio is very experimental */ |
|
|
2914 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2915 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2916 | #endif |
|
|
2917 | /* TODO: linuxaio is super experimental */ |
|
|
2918 | #if !EV_RECOMMEND_IOURING |
|
|
2919 | flags &= ~EVBACKEND_IOURING; |
|
|
2920 | #endif |
1502 | |
2921 | |
1503 | return flags; |
2922 | return flags; |
1504 | } |
2923 | } |
1505 | |
2924 | |
|
|
2925 | ecb_cold |
1506 | unsigned int |
2926 | unsigned int |
1507 | ev_embeddable_backends (void) |
2927 | ev_embeddable_backends (void) EV_NOEXCEPT |
1508 | { |
2928 | { |
1509 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2929 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1510 | |
2930 | |
1511 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2931 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1512 | /* please fix it and tell me how to detect the fix */ |
2932 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1513 | flags &= ~EVBACKEND_EPOLL; |
2933 | flags &= ~EVBACKEND_EPOLL; |
|
|
2934 | |
|
|
2935 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2936 | |
|
|
2937 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2938 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2939 | * if the kernel ever is fixed, this might change... |
|
|
2940 | */ |
1514 | |
2941 | |
1515 | return flags; |
2942 | return flags; |
1516 | } |
2943 | } |
1517 | |
2944 | |
1518 | unsigned int |
2945 | unsigned int |
1519 | ev_backend (EV_P) |
2946 | ev_backend (EV_P) EV_NOEXCEPT |
1520 | { |
2947 | { |
1521 | return backend; |
2948 | return backend; |
1522 | } |
2949 | } |
1523 | |
2950 | |
1524 | #if EV_MINIMAL < 2 |
2951 | #if EV_FEATURE_API |
1525 | unsigned int |
2952 | unsigned int |
1526 | ev_loop_count (EV_P) |
2953 | ev_iteration (EV_P) EV_NOEXCEPT |
1527 | { |
2954 | { |
1528 | return loop_count; |
2955 | return loop_count; |
1529 | } |
2956 | } |
1530 | |
2957 | |
1531 | unsigned int |
2958 | unsigned int |
1532 | ev_loop_depth (EV_P) |
2959 | ev_depth (EV_P) EV_NOEXCEPT |
1533 | { |
2960 | { |
1534 | return loop_depth; |
2961 | return loop_depth; |
1535 | } |
2962 | } |
1536 | |
2963 | |
1537 | void |
2964 | void |
1538 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2965 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1539 | { |
2966 | { |
1540 | io_blocktime = interval; |
2967 | io_blocktime = interval; |
1541 | } |
2968 | } |
1542 | |
2969 | |
1543 | void |
2970 | void |
1544 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2971 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1545 | { |
2972 | { |
1546 | timeout_blocktime = interval; |
2973 | timeout_blocktime = interval; |
1547 | } |
2974 | } |
1548 | |
2975 | |
1549 | void |
2976 | void |
1550 | ev_set_userdata (EV_P_ void *data) |
2977 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1551 | { |
2978 | { |
1552 | userdata = data; |
2979 | userdata = data; |
1553 | } |
2980 | } |
1554 | |
2981 | |
1555 | void * |
2982 | void * |
1556 | ev_userdata (EV_P) |
2983 | ev_userdata (EV_P) EV_NOEXCEPT |
1557 | { |
2984 | { |
1558 | return userdata; |
2985 | return userdata; |
1559 | } |
2986 | } |
1560 | |
2987 | |
|
|
2988 | void |
1561 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2989 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1562 | { |
2990 | { |
1563 | invoke_cb = invoke_pending_cb; |
2991 | invoke_cb = invoke_pending_cb; |
1564 | } |
2992 | } |
1565 | |
2993 | |
|
|
2994 | void |
1566 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2995 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1567 | { |
2996 | { |
1568 | release_cb = release; |
2997 | release_cb = release; |
1569 | acquire_cb = acquire; |
2998 | acquire_cb = acquire; |
1570 | } |
2999 | } |
1571 | #endif |
3000 | #endif |
1572 | |
3001 | |
1573 | /* initialise a loop structure, must be zero-initialised */ |
3002 | /* initialise a loop structure, must be zero-initialised */ |
1574 | static void noinline |
3003 | ecb_noinline ecb_cold |
|
|
3004 | static void |
1575 | loop_init (EV_P_ unsigned int flags) |
3005 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1576 | { |
3006 | { |
1577 | if (!backend) |
3007 | if (!backend) |
1578 | { |
3008 | { |
|
|
3009 | origflags = flags; |
|
|
3010 | |
1579 | #if EV_USE_REALTIME |
3011 | #if EV_USE_REALTIME |
1580 | if (!have_realtime) |
3012 | if (!have_realtime) |
1581 | { |
3013 | { |
1582 | struct timespec ts; |
3014 | struct timespec ts; |
1583 | |
3015 | |
… | |
… | |
1605 | if (!(flags & EVFLAG_NOENV) |
3037 | if (!(flags & EVFLAG_NOENV) |
1606 | && !enable_secure () |
3038 | && !enable_secure () |
1607 | && getenv ("LIBEV_FLAGS")) |
3039 | && getenv ("LIBEV_FLAGS")) |
1608 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3040 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1609 | |
3041 | |
1610 | ev_rt_now = ev_time (); |
3042 | ev_rt_now = ev_time (); |
1611 | mn_now = get_clock (); |
3043 | mn_now = get_clock (); |
1612 | now_floor = mn_now; |
3044 | now_floor = mn_now; |
1613 | rtmn_diff = ev_rt_now - mn_now; |
3045 | rtmn_diff = ev_rt_now - mn_now; |
1614 | #if EV_MINIMAL < 2 |
3046 | #if EV_FEATURE_API |
1615 | invoke_cb = ev_invoke_pending; |
3047 | invoke_cb = ev_invoke_pending; |
1616 | #endif |
3048 | #endif |
1617 | |
3049 | |
1618 | io_blocktime = 0.; |
3050 | io_blocktime = 0.; |
1619 | timeout_blocktime = 0.; |
3051 | timeout_blocktime = 0.; |
1620 | backend = 0; |
3052 | backend = 0; |
1621 | backend_fd = -1; |
3053 | backend_fd = -1; |
1622 | sig_pending = 0; |
3054 | sig_pending = 0; |
1623 | #if EV_ASYNC_ENABLE |
3055 | #if EV_ASYNC_ENABLE |
1624 | async_pending = 0; |
3056 | async_pending = 0; |
1625 | #endif |
3057 | #endif |
|
|
3058 | pipe_write_skipped = 0; |
|
|
3059 | pipe_write_wanted = 0; |
|
|
3060 | evpipe [0] = -1; |
|
|
3061 | evpipe [1] = -1; |
1626 | #if EV_USE_INOTIFY |
3062 | #if EV_USE_INOTIFY |
1627 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3063 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1628 | #endif |
3064 | #endif |
1629 | #if EV_USE_SIGNALFD |
3065 | #if EV_USE_SIGNALFD |
1630 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3066 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1631 | #endif |
3067 | #endif |
1632 | |
3068 | |
1633 | if (!(flags & 0x0000ffffU)) |
3069 | if (!(flags & EVBACKEND_MASK)) |
1634 | flags |= ev_recommended_backends (); |
3070 | flags |= ev_recommended_backends (); |
1635 | |
3071 | |
|
|
3072 | #if EV_USE_IOCP |
|
|
3073 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
3074 | #endif |
1636 | #if EV_USE_PORT |
3075 | #if EV_USE_PORT |
1637 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3076 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1638 | #endif |
3077 | #endif |
1639 | #if EV_USE_KQUEUE |
3078 | #if EV_USE_KQUEUE |
1640 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3079 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3080 | #endif |
|
|
3081 | #if EV_USE_IOURING |
|
|
3082 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3083 | #endif |
|
|
3084 | #if EV_USE_LINUXAIO |
|
|
3085 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1641 | #endif |
3086 | #endif |
1642 | #if EV_USE_EPOLL |
3087 | #if EV_USE_EPOLL |
1643 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3088 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1644 | #endif |
3089 | #endif |
1645 | #if EV_USE_POLL |
3090 | #if EV_USE_POLL |
1646 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3091 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1647 | #endif |
3092 | #endif |
1648 | #if EV_USE_SELECT |
3093 | #if EV_USE_SELECT |
1649 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3094 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1650 | #endif |
3095 | #endif |
1651 | |
3096 | |
1652 | ev_prepare_init (&pending_w, pendingcb); |
3097 | ev_prepare_init (&pending_w, pendingcb); |
1653 | |
3098 | |
|
|
3099 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1654 | ev_init (&pipe_w, pipecb); |
3100 | ev_init (&pipe_w, pipecb); |
1655 | ev_set_priority (&pipe_w, EV_MAXPRI); |
3101 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
3102 | #endif |
1656 | } |
3103 | } |
1657 | } |
3104 | } |
1658 | |
3105 | |
1659 | /* free up a loop structure */ |
3106 | /* free up a loop structure */ |
1660 | static void noinline |
3107 | ecb_cold |
|
|
3108 | void |
1661 | loop_destroy (EV_P) |
3109 | ev_loop_destroy (EV_P) |
1662 | { |
3110 | { |
1663 | int i; |
3111 | int i; |
|
|
3112 | |
|
|
3113 | #if EV_MULTIPLICITY |
|
|
3114 | /* mimic free (0) */ |
|
|
3115 | if (!EV_A) |
|
|
3116 | return; |
|
|
3117 | #endif |
|
|
3118 | |
|
|
3119 | #if EV_CLEANUP_ENABLE |
|
|
3120 | /* queue cleanup watchers (and execute them) */ |
|
|
3121 | if (ecb_expect_false (cleanupcnt)) |
|
|
3122 | { |
|
|
3123 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3124 | EV_INVOKE_PENDING; |
|
|
3125 | } |
|
|
3126 | #endif |
|
|
3127 | |
|
|
3128 | #if EV_CHILD_ENABLE |
|
|
3129 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3130 | { |
|
|
3131 | ev_ref (EV_A); /* child watcher */ |
|
|
3132 | ev_signal_stop (EV_A_ &childev); |
|
|
3133 | } |
|
|
3134 | #endif |
1664 | |
3135 | |
1665 | if (ev_is_active (&pipe_w)) |
3136 | if (ev_is_active (&pipe_w)) |
1666 | { |
3137 | { |
1667 | /*ev_ref (EV_A);*/ |
3138 | /*ev_ref (EV_A);*/ |
1668 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3139 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1669 | |
3140 | |
1670 | #if EV_USE_EVENTFD |
|
|
1671 | if (evfd >= 0) |
|
|
1672 | close (evfd); |
|
|
1673 | #endif |
|
|
1674 | |
|
|
1675 | if (evpipe [0] >= 0) |
|
|
1676 | { |
|
|
1677 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3141 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1678 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3142 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1679 | } |
|
|
1680 | } |
3143 | } |
1681 | |
3144 | |
1682 | #if EV_USE_SIGNALFD |
3145 | #if EV_USE_SIGNALFD |
1683 | if (ev_is_active (&sigfd_w)) |
3146 | if (ev_is_active (&sigfd_w)) |
1684 | close (sigfd); |
3147 | close (sigfd); |
… | |
… | |
1690 | #endif |
3153 | #endif |
1691 | |
3154 | |
1692 | if (backend_fd >= 0) |
3155 | if (backend_fd >= 0) |
1693 | close (backend_fd); |
3156 | close (backend_fd); |
1694 | |
3157 | |
|
|
3158 | #if EV_USE_IOCP |
|
|
3159 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3160 | #endif |
1695 | #if EV_USE_PORT |
3161 | #if EV_USE_PORT |
1696 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3162 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1697 | #endif |
3163 | #endif |
1698 | #if EV_USE_KQUEUE |
3164 | #if EV_USE_KQUEUE |
1699 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3165 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3166 | #endif |
|
|
3167 | #if EV_USE_IOURING |
|
|
3168 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3169 | #endif |
|
|
3170 | #if EV_USE_LINUXAIO |
|
|
3171 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1700 | #endif |
3172 | #endif |
1701 | #if EV_USE_EPOLL |
3173 | #if EV_USE_EPOLL |
1702 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3174 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1703 | #endif |
3175 | #endif |
1704 | #if EV_USE_POLL |
3176 | #if EV_USE_POLL |
1705 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3177 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1706 | #endif |
3178 | #endif |
1707 | #if EV_USE_SELECT |
3179 | #if EV_USE_SELECT |
1708 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3180 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1709 | #endif |
3181 | #endif |
1710 | |
3182 | |
1711 | for (i = NUMPRI; i--; ) |
3183 | for (i = NUMPRI; i--; ) |
1712 | { |
3184 | { |
1713 | array_free (pending, [i]); |
3185 | array_free (pending, [i]); |
… | |
… | |
1726 | array_free (periodic, EMPTY); |
3198 | array_free (periodic, EMPTY); |
1727 | #endif |
3199 | #endif |
1728 | #if EV_FORK_ENABLE |
3200 | #if EV_FORK_ENABLE |
1729 | array_free (fork, EMPTY); |
3201 | array_free (fork, EMPTY); |
1730 | #endif |
3202 | #endif |
|
|
3203 | #if EV_CLEANUP_ENABLE |
|
|
3204 | array_free (cleanup, EMPTY); |
|
|
3205 | #endif |
1731 | array_free (prepare, EMPTY); |
3206 | array_free (prepare, EMPTY); |
1732 | array_free (check, EMPTY); |
3207 | array_free (check, EMPTY); |
1733 | #if EV_ASYNC_ENABLE |
3208 | #if EV_ASYNC_ENABLE |
1734 | array_free (async, EMPTY); |
3209 | array_free (async, EMPTY); |
1735 | #endif |
3210 | #endif |
1736 | |
3211 | |
1737 | backend = 0; |
3212 | backend = 0; |
|
|
3213 | |
|
|
3214 | #if EV_MULTIPLICITY |
|
|
3215 | if (ev_is_default_loop (EV_A)) |
|
|
3216 | #endif |
|
|
3217 | ev_default_loop_ptr = 0; |
|
|
3218 | #if EV_MULTIPLICITY |
|
|
3219 | else |
|
|
3220 | ev_free (EV_A); |
|
|
3221 | #endif |
1738 | } |
3222 | } |
1739 | |
3223 | |
1740 | #if EV_USE_INOTIFY |
3224 | #if EV_USE_INOTIFY |
1741 | inline_size void infy_fork (EV_P); |
3225 | inline_size void infy_fork (EV_P); |
1742 | #endif |
3226 | #endif |
1743 | |
3227 | |
1744 | inline_size void |
3228 | inline_size void |
1745 | loop_fork (EV_P) |
3229 | loop_fork (EV_P) |
1746 | { |
3230 | { |
1747 | #if EV_USE_PORT |
3231 | #if EV_USE_PORT |
1748 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3232 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1749 | #endif |
3233 | #endif |
1750 | #if EV_USE_KQUEUE |
3234 | #if EV_USE_KQUEUE |
1751 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3235 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3236 | #endif |
|
|
3237 | #if EV_USE_IOURING |
|
|
3238 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3239 | #endif |
|
|
3240 | #if EV_USE_LINUXAIO |
|
|
3241 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1752 | #endif |
3242 | #endif |
1753 | #if EV_USE_EPOLL |
3243 | #if EV_USE_EPOLL |
1754 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3244 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1755 | #endif |
3245 | #endif |
1756 | #if EV_USE_INOTIFY |
3246 | #if EV_USE_INOTIFY |
1757 | infy_fork (EV_A); |
3247 | infy_fork (EV_A); |
1758 | #endif |
3248 | #endif |
1759 | |
3249 | |
|
|
3250 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1760 | if (ev_is_active (&pipe_w)) |
3251 | if (ev_is_active (&pipe_w) && postfork != 2) |
1761 | { |
3252 | { |
1762 | /* this "locks" the handlers against writing to the pipe */ |
3253 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1763 | /* while we modify the fd vars */ |
|
|
1764 | sig_pending = 1; |
|
|
1765 | #if EV_ASYNC_ENABLE |
|
|
1766 | async_pending = 1; |
|
|
1767 | #endif |
|
|
1768 | |
3254 | |
1769 | ev_ref (EV_A); |
3255 | ev_ref (EV_A); |
1770 | ev_io_stop (EV_A_ &pipe_w); |
3256 | ev_io_stop (EV_A_ &pipe_w); |
1771 | |
3257 | |
1772 | #if EV_USE_EVENTFD |
|
|
1773 | if (evfd >= 0) |
|
|
1774 | close (evfd); |
|
|
1775 | #endif |
|
|
1776 | |
|
|
1777 | if (evpipe [0] >= 0) |
3258 | if (evpipe [0] >= 0) |
1778 | { |
|
|
1779 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3259 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1780 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1781 | } |
|
|
1782 | |
3260 | |
1783 | evpipe_init (EV_A); |
3261 | evpipe_init (EV_A); |
1784 | /* now iterate over everything, in case we missed something */ |
3262 | /* iterate over everything, in case we missed something before */ |
1785 | pipecb (EV_A_ &pipe_w, EV_READ); |
3263 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1786 | } |
3264 | } |
|
|
3265 | #endif |
1787 | |
3266 | |
1788 | postfork = 0; |
3267 | postfork = 0; |
1789 | } |
3268 | } |
1790 | |
3269 | |
1791 | #if EV_MULTIPLICITY |
3270 | #if EV_MULTIPLICITY |
1792 | |
3271 | |
|
|
3272 | ecb_cold |
1793 | struct ev_loop * |
3273 | struct ev_loop * |
1794 | ev_loop_new (unsigned int flags) |
3274 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1795 | { |
3275 | { |
1796 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3276 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1797 | |
3277 | |
1798 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3278 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1799 | loop_init (EV_A_ flags); |
3279 | loop_init (EV_A_ flags); |
1800 | |
3280 | |
1801 | if (ev_backend (EV_A)) |
3281 | if (ev_backend (EV_A)) |
1802 | return EV_A; |
3282 | return EV_A; |
1803 | |
3283 | |
|
|
3284 | ev_free (EV_A); |
1804 | return 0; |
3285 | return 0; |
1805 | } |
3286 | } |
1806 | |
3287 | |
1807 | void |
|
|
1808 | ev_loop_destroy (EV_P) |
|
|
1809 | { |
|
|
1810 | loop_destroy (EV_A); |
|
|
1811 | ev_free (loop); |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | void |
|
|
1815 | ev_loop_fork (EV_P) |
|
|
1816 | { |
|
|
1817 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1818 | } |
|
|
1819 | #endif /* multiplicity */ |
3288 | #endif /* multiplicity */ |
1820 | |
3289 | |
1821 | #if EV_VERIFY |
3290 | #if EV_VERIFY |
1822 | static void noinline |
3291 | ecb_noinline ecb_cold |
|
|
3292 | static void |
1823 | verify_watcher (EV_P_ W w) |
3293 | verify_watcher (EV_P_ W w) |
1824 | { |
3294 | { |
1825 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3295 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1826 | |
3296 | |
1827 | if (w->pending) |
3297 | if (w->pending) |
1828 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3298 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1829 | } |
3299 | } |
1830 | |
3300 | |
1831 | static void noinline |
3301 | ecb_noinline ecb_cold |
|
|
3302 | static void |
1832 | verify_heap (EV_P_ ANHE *heap, int N) |
3303 | verify_heap (EV_P_ ANHE *heap, int N) |
1833 | { |
3304 | { |
1834 | int i; |
3305 | int i; |
1835 | |
3306 | |
1836 | for (i = HEAP0; i < N + HEAP0; ++i) |
3307 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1841 | |
3312 | |
1842 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3313 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1843 | } |
3314 | } |
1844 | } |
3315 | } |
1845 | |
3316 | |
1846 | static void noinline |
3317 | ecb_noinline ecb_cold |
|
|
3318 | static void |
1847 | array_verify (EV_P_ W *ws, int cnt) |
3319 | array_verify (EV_P_ W *ws, int cnt) |
1848 | { |
3320 | { |
1849 | while (cnt--) |
3321 | while (cnt--) |
1850 | { |
3322 | { |
1851 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3323 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1852 | verify_watcher (EV_A_ ws [cnt]); |
3324 | verify_watcher (EV_A_ ws [cnt]); |
1853 | } |
3325 | } |
1854 | } |
3326 | } |
1855 | #endif |
3327 | #endif |
1856 | |
3328 | |
1857 | #if EV_MINIMAL < 2 |
3329 | #if EV_FEATURE_API |
1858 | void |
3330 | void ecb_cold |
1859 | ev_loop_verify (EV_P) |
3331 | ev_verify (EV_P) EV_NOEXCEPT |
1860 | { |
3332 | { |
1861 | #if EV_VERIFY |
3333 | #if EV_VERIFY |
1862 | int i; |
3334 | int i; |
1863 | WL w; |
3335 | WL w, w2; |
1864 | |
3336 | |
1865 | assert (activecnt >= -1); |
3337 | assert (activecnt >= -1); |
1866 | |
3338 | |
1867 | assert (fdchangemax >= fdchangecnt); |
3339 | assert (fdchangemax >= fdchangecnt); |
1868 | for (i = 0; i < fdchangecnt; ++i) |
3340 | for (i = 0; i < fdchangecnt; ++i) |
1869 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3341 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1870 | |
3342 | |
1871 | assert (anfdmax >= 0); |
3343 | assert (anfdmax >= 0); |
1872 | for (i = 0; i < anfdmax; ++i) |
3344 | for (i = 0; i < anfdmax; ++i) |
|
|
3345 | { |
|
|
3346 | int j = 0; |
|
|
3347 | |
1873 | for (w = anfds [i].head; w; w = w->next) |
3348 | for (w = w2 = anfds [i].head; w; w = w->next) |
1874 | { |
3349 | { |
1875 | verify_watcher (EV_A_ (W)w); |
3350 | verify_watcher (EV_A_ (W)w); |
|
|
3351 | |
|
|
3352 | if (j++ & 1) |
|
|
3353 | { |
|
|
3354 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3355 | w2 = w2->next; |
|
|
3356 | } |
|
|
3357 | |
1876 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3358 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1877 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3359 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1878 | } |
3360 | } |
|
|
3361 | } |
1879 | |
3362 | |
1880 | assert (timermax >= timercnt); |
3363 | assert (timermax >= timercnt); |
1881 | verify_heap (EV_A_ timers, timercnt); |
3364 | verify_heap (EV_A_ timers, timercnt); |
1882 | |
3365 | |
1883 | #if EV_PERIODIC_ENABLE |
3366 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1898 | #if EV_FORK_ENABLE |
3381 | #if EV_FORK_ENABLE |
1899 | assert (forkmax >= forkcnt); |
3382 | assert (forkmax >= forkcnt); |
1900 | array_verify (EV_A_ (W *)forks, forkcnt); |
3383 | array_verify (EV_A_ (W *)forks, forkcnt); |
1901 | #endif |
3384 | #endif |
1902 | |
3385 | |
|
|
3386 | #if EV_CLEANUP_ENABLE |
|
|
3387 | assert (cleanupmax >= cleanupcnt); |
|
|
3388 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3389 | #endif |
|
|
3390 | |
1903 | #if EV_ASYNC_ENABLE |
3391 | #if EV_ASYNC_ENABLE |
1904 | assert (asyncmax >= asynccnt); |
3392 | assert (asyncmax >= asynccnt); |
1905 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3393 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1906 | #endif |
3394 | #endif |
1907 | |
3395 | |
|
|
3396 | #if EV_PREPARE_ENABLE |
1908 | assert (preparemax >= preparecnt); |
3397 | assert (preparemax >= preparecnt); |
1909 | array_verify (EV_A_ (W *)prepares, preparecnt); |
3398 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
3399 | #endif |
1910 | |
3400 | |
|
|
3401 | #if EV_CHECK_ENABLE |
1911 | assert (checkmax >= checkcnt); |
3402 | assert (checkmax >= checkcnt); |
1912 | array_verify (EV_A_ (W *)checks, checkcnt); |
3403 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
3404 | #endif |
1913 | |
3405 | |
1914 | # if 0 |
3406 | # if 0 |
|
|
3407 | #if EV_CHILD_ENABLE |
1915 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
3408 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1916 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
3409 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3410 | #endif |
1917 | # endif |
3411 | # endif |
1918 | #endif |
3412 | #endif |
1919 | } |
3413 | } |
1920 | #endif |
3414 | #endif |
1921 | |
3415 | |
1922 | #if EV_MULTIPLICITY |
3416 | #if EV_MULTIPLICITY |
|
|
3417 | ecb_cold |
1923 | struct ev_loop * |
3418 | struct ev_loop * |
1924 | ev_default_loop_init (unsigned int flags) |
|
|
1925 | #else |
3419 | #else |
1926 | int |
3420 | int |
|
|
3421 | #endif |
1927 | ev_default_loop (unsigned int flags) |
3422 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1928 | #endif |
|
|
1929 | { |
3423 | { |
1930 | if (!ev_default_loop_ptr) |
3424 | if (!ev_default_loop_ptr) |
1931 | { |
3425 | { |
1932 | #if EV_MULTIPLICITY |
3426 | #if EV_MULTIPLICITY |
1933 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3427 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1937 | |
3431 | |
1938 | loop_init (EV_A_ flags); |
3432 | loop_init (EV_A_ flags); |
1939 | |
3433 | |
1940 | if (ev_backend (EV_A)) |
3434 | if (ev_backend (EV_A)) |
1941 | { |
3435 | { |
1942 | #ifndef _WIN32 |
3436 | #if EV_CHILD_ENABLE |
1943 | ev_signal_init (&childev, childcb, SIGCHLD); |
3437 | ev_signal_init (&childev, childcb, SIGCHLD); |
1944 | ev_set_priority (&childev, EV_MAXPRI); |
3438 | ev_set_priority (&childev, EV_MAXPRI); |
1945 | ev_signal_start (EV_A_ &childev); |
3439 | ev_signal_start (EV_A_ &childev); |
1946 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3440 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1947 | #endif |
3441 | #endif |
… | |
… | |
1952 | |
3446 | |
1953 | return ev_default_loop_ptr; |
3447 | return ev_default_loop_ptr; |
1954 | } |
3448 | } |
1955 | |
3449 | |
1956 | void |
3450 | void |
1957 | ev_default_destroy (void) |
3451 | ev_loop_fork (EV_P) EV_NOEXCEPT |
1958 | { |
3452 | { |
1959 | #if EV_MULTIPLICITY |
3453 | postfork = 1; |
1960 | EV_P = ev_default_loop_ptr; |
|
|
1961 | #endif |
|
|
1962 | |
|
|
1963 | ev_default_loop_ptr = 0; |
|
|
1964 | |
|
|
1965 | #ifndef _WIN32 |
|
|
1966 | ev_ref (EV_A); /* child watcher */ |
|
|
1967 | ev_signal_stop (EV_A_ &childev); |
|
|
1968 | #endif |
|
|
1969 | |
|
|
1970 | loop_destroy (EV_A); |
|
|
1971 | } |
|
|
1972 | |
|
|
1973 | void |
|
|
1974 | ev_default_fork (void) |
|
|
1975 | { |
|
|
1976 | #if EV_MULTIPLICITY |
|
|
1977 | EV_P = ev_default_loop_ptr; |
|
|
1978 | #endif |
|
|
1979 | |
|
|
1980 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1981 | } |
3454 | } |
1982 | |
3455 | |
1983 | /*****************************************************************************/ |
3456 | /*****************************************************************************/ |
1984 | |
3457 | |
1985 | void |
3458 | void |
… | |
… | |
1987 | { |
3460 | { |
1988 | EV_CB_INVOKE ((W)w, revents); |
3461 | EV_CB_INVOKE ((W)w, revents); |
1989 | } |
3462 | } |
1990 | |
3463 | |
1991 | unsigned int |
3464 | unsigned int |
1992 | ev_pending_count (EV_P) |
3465 | ev_pending_count (EV_P) EV_NOEXCEPT |
1993 | { |
3466 | { |
1994 | int pri; |
3467 | int pri; |
1995 | unsigned int count = 0; |
3468 | unsigned int count = 0; |
1996 | |
3469 | |
1997 | for (pri = NUMPRI; pri--; ) |
3470 | for (pri = NUMPRI; pri--; ) |
1998 | count += pendingcnt [pri]; |
3471 | count += pendingcnt [pri]; |
1999 | |
3472 | |
2000 | return count; |
3473 | return count; |
2001 | } |
3474 | } |
2002 | |
3475 | |
2003 | void noinline |
3476 | ecb_noinline |
|
|
3477 | void |
2004 | ev_invoke_pending (EV_P) |
3478 | ev_invoke_pending (EV_P) |
2005 | { |
3479 | { |
2006 | int pri; |
3480 | pendingpri = NUMPRI; |
2007 | |
3481 | |
2008 | for (pri = NUMPRI; pri--; ) |
3482 | do |
|
|
3483 | { |
|
|
3484 | --pendingpri; |
|
|
3485 | |
|
|
3486 | /* pendingpri possibly gets modified in the inner loop */ |
2009 | while (pendingcnt [pri]) |
3487 | while (pendingcnt [pendingpri]) |
2010 | { |
3488 | { |
2011 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3489 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2012 | |
3490 | |
2013 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2014 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2015 | |
|
|
2016 | p->w->pending = 0; |
3491 | p->w->pending = 0; |
2017 | EV_CB_INVOKE (p->w, p->events); |
3492 | EV_CB_INVOKE (p->w, p->events); |
2018 | EV_FREQUENT_CHECK; |
3493 | EV_FREQUENT_CHECK; |
2019 | } |
3494 | } |
|
|
3495 | } |
|
|
3496 | while (pendingpri); |
2020 | } |
3497 | } |
2021 | |
3498 | |
2022 | #if EV_IDLE_ENABLE |
3499 | #if EV_IDLE_ENABLE |
2023 | /* make idle watchers pending. this handles the "call-idle */ |
3500 | /* make idle watchers pending. this handles the "call-idle */ |
2024 | /* only when higher priorities are idle" logic */ |
3501 | /* only when higher priorities are idle" logic */ |
2025 | inline_size void |
3502 | inline_size void |
2026 | idle_reify (EV_P) |
3503 | idle_reify (EV_P) |
2027 | { |
3504 | { |
2028 | if (expect_false (idleall)) |
3505 | if (ecb_expect_false (idleall)) |
2029 | { |
3506 | { |
2030 | int pri; |
3507 | int pri; |
2031 | |
3508 | |
2032 | for (pri = NUMPRI; pri--; ) |
3509 | for (pri = NUMPRI; pri--; ) |
2033 | { |
3510 | { |
… | |
… | |
2076 | EV_FREQUENT_CHECK; |
3553 | EV_FREQUENT_CHECK; |
2077 | feed_reverse (EV_A_ (W)w); |
3554 | feed_reverse (EV_A_ (W)w); |
2078 | } |
3555 | } |
2079 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3556 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2080 | |
3557 | |
2081 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3558 | feed_reverse_done (EV_A_ EV_TIMER); |
2082 | } |
3559 | } |
2083 | } |
3560 | } |
2084 | |
3561 | |
2085 | #if EV_PERIODIC_ENABLE |
3562 | #if EV_PERIODIC_ENABLE |
|
|
3563 | |
|
|
3564 | ecb_noinline |
|
|
3565 | static void |
|
|
3566 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3567 | { |
|
|
3568 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3569 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3570 | |
|
|
3571 | /* the above almost always errs on the low side */ |
|
|
3572 | while (at <= ev_rt_now) |
|
|
3573 | { |
|
|
3574 | ev_tstamp nat = at + w->interval; |
|
|
3575 | |
|
|
3576 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3577 | if (ecb_expect_false (nat == at)) |
|
|
3578 | { |
|
|
3579 | at = ev_rt_now; |
|
|
3580 | break; |
|
|
3581 | } |
|
|
3582 | |
|
|
3583 | at = nat; |
|
|
3584 | } |
|
|
3585 | |
|
|
3586 | ev_at (w) = at; |
|
|
3587 | } |
|
|
3588 | |
2086 | /* make periodics pending */ |
3589 | /* make periodics pending */ |
2087 | inline_size void |
3590 | inline_size void |
2088 | periodics_reify (EV_P) |
3591 | periodics_reify (EV_P) |
2089 | { |
3592 | { |
2090 | EV_FREQUENT_CHECK; |
3593 | EV_FREQUENT_CHECK; |
2091 | |
3594 | |
2092 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3595 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2093 | { |
3596 | { |
2094 | int feed_count = 0; |
|
|
2095 | |
|
|
2096 | do |
3597 | do |
2097 | { |
3598 | { |
2098 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3599 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2099 | |
3600 | |
2100 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3601 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2109 | ANHE_at_cache (periodics [HEAP0]); |
3610 | ANHE_at_cache (periodics [HEAP0]); |
2110 | downheap (periodics, periodiccnt, HEAP0); |
3611 | downheap (periodics, periodiccnt, HEAP0); |
2111 | } |
3612 | } |
2112 | else if (w->interval) |
3613 | else if (w->interval) |
2113 | { |
3614 | { |
2114 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3615 | periodic_recalc (EV_A_ w); |
2115 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2116 | /* this might happen because of floating point inexactness */ |
|
|
2117 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2118 | { |
|
|
2119 | ev_at (w) += w->interval; |
|
|
2120 | |
|
|
2121 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2122 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2123 | /* has effectively asked to get triggered more often than possible */ |
|
|
2124 | if (ev_at (w) < ev_rt_now) |
|
|
2125 | ev_at (w) = ev_rt_now; |
|
|
2126 | } |
|
|
2127 | |
|
|
2128 | ANHE_at_cache (periodics [HEAP0]); |
3616 | ANHE_at_cache (periodics [HEAP0]); |
2129 | downheap (periodics, periodiccnt, HEAP0); |
3617 | downheap (periodics, periodiccnt, HEAP0); |
2130 | } |
3618 | } |
2131 | else |
3619 | else |
2132 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3620 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2139 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3627 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2140 | } |
3628 | } |
2141 | } |
3629 | } |
2142 | |
3630 | |
2143 | /* simply recalculate all periodics */ |
3631 | /* simply recalculate all periodics */ |
2144 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3632 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2145 | static void noinline |
3633 | ecb_noinline ecb_cold |
|
|
3634 | static void |
2146 | periodics_reschedule (EV_P) |
3635 | periodics_reschedule (EV_P) |
2147 | { |
3636 | { |
2148 | int i; |
3637 | int i; |
2149 | |
3638 | |
2150 | /* adjust periodics after time jump */ |
3639 | /* adjust periodics after time jump */ |
… | |
… | |
2153 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3642 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2154 | |
3643 | |
2155 | if (w->reschedule_cb) |
3644 | if (w->reschedule_cb) |
2156 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3645 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2157 | else if (w->interval) |
3646 | else if (w->interval) |
2158 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3647 | periodic_recalc (EV_A_ w); |
2159 | |
3648 | |
2160 | ANHE_at_cache (periodics [i]); |
3649 | ANHE_at_cache (periodics [i]); |
2161 | } |
3650 | } |
2162 | |
3651 | |
2163 | reheap (periodics, periodiccnt); |
3652 | reheap (periodics, periodiccnt); |
2164 | } |
3653 | } |
2165 | #endif |
3654 | #endif |
2166 | |
3655 | |
2167 | /* adjust all timers by a given offset */ |
3656 | /* adjust all timers by a given offset */ |
2168 | static void noinline |
3657 | ecb_noinline ecb_cold |
|
|
3658 | static void |
2169 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3659 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2170 | { |
3660 | { |
2171 | int i; |
3661 | int i; |
2172 | |
3662 | |
2173 | for (i = 0; i < timercnt; ++i) |
3663 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2182 | /* also detect if there was a timejump, and act accordingly */ |
3672 | /* also detect if there was a timejump, and act accordingly */ |
2183 | inline_speed void |
3673 | inline_speed void |
2184 | time_update (EV_P_ ev_tstamp max_block) |
3674 | time_update (EV_P_ ev_tstamp max_block) |
2185 | { |
3675 | { |
2186 | #if EV_USE_MONOTONIC |
3676 | #if EV_USE_MONOTONIC |
2187 | if (expect_true (have_monotonic)) |
3677 | if (ecb_expect_true (have_monotonic)) |
2188 | { |
3678 | { |
2189 | int i; |
3679 | int i; |
2190 | ev_tstamp odiff = rtmn_diff; |
3680 | ev_tstamp odiff = rtmn_diff; |
2191 | |
3681 | |
2192 | mn_now = get_clock (); |
3682 | mn_now = get_clock (); |
2193 | |
3683 | |
2194 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3684 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2195 | /* interpolate in the meantime */ |
3685 | /* interpolate in the meantime */ |
2196 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3686 | if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
2197 | { |
3687 | { |
2198 | ev_rt_now = rtmn_diff + mn_now; |
3688 | ev_rt_now = rtmn_diff + mn_now; |
2199 | return; |
3689 | return; |
2200 | } |
3690 | } |
2201 | |
3691 | |
… | |
… | |
2210 | * doesn't hurt either as we only do this on time-jumps or |
3700 | * doesn't hurt either as we only do this on time-jumps or |
2211 | * in the unlikely event of having been preempted here. |
3701 | * in the unlikely event of having been preempted here. |
2212 | */ |
3702 | */ |
2213 | for (i = 4; --i; ) |
3703 | for (i = 4; --i; ) |
2214 | { |
3704 | { |
|
|
3705 | ev_tstamp diff; |
2215 | rtmn_diff = ev_rt_now - mn_now; |
3706 | rtmn_diff = ev_rt_now - mn_now; |
2216 | |
3707 | |
|
|
3708 | diff = odiff - rtmn_diff; |
|
|
3709 | |
2217 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3710 | if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2218 | return; /* all is well */ |
3711 | return; /* all is well */ |
2219 | |
3712 | |
2220 | ev_rt_now = ev_time (); |
3713 | ev_rt_now = ev_time (); |
2221 | mn_now = get_clock (); |
3714 | mn_now = get_clock (); |
2222 | now_floor = mn_now; |
3715 | now_floor = mn_now; |
… | |
… | |
2231 | else |
3724 | else |
2232 | #endif |
3725 | #endif |
2233 | { |
3726 | { |
2234 | ev_rt_now = ev_time (); |
3727 | ev_rt_now = ev_time (); |
2235 | |
3728 | |
2236 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3729 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2237 | { |
3730 | { |
2238 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3731 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2239 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3732 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2240 | #if EV_PERIODIC_ENABLE |
3733 | #if EV_PERIODIC_ENABLE |
2241 | periodics_reschedule (EV_A); |
3734 | periodics_reschedule (EV_A); |
… | |
… | |
2244 | |
3737 | |
2245 | mn_now = ev_rt_now; |
3738 | mn_now = ev_rt_now; |
2246 | } |
3739 | } |
2247 | } |
3740 | } |
2248 | |
3741 | |
2249 | void |
3742 | int |
2250 | ev_loop (EV_P_ int flags) |
3743 | ev_run (EV_P_ int flags) |
2251 | { |
3744 | { |
2252 | #if EV_MINIMAL < 2 |
3745 | #if EV_FEATURE_API |
2253 | ++loop_depth; |
3746 | ++loop_depth; |
2254 | #endif |
3747 | #endif |
2255 | |
3748 | |
2256 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3749 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2257 | |
3750 | |
2258 | loop_done = EVUNLOOP_CANCEL; |
3751 | loop_done = EVBREAK_CANCEL; |
2259 | |
3752 | |
2260 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3753 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2261 | |
3754 | |
2262 | do |
3755 | do |
2263 | { |
3756 | { |
2264 | #if EV_VERIFY >= 2 |
3757 | #if EV_VERIFY >= 2 |
2265 | ev_loop_verify (EV_A); |
3758 | ev_verify (EV_A); |
2266 | #endif |
3759 | #endif |
2267 | |
3760 | |
2268 | #ifndef _WIN32 |
3761 | #ifndef _WIN32 |
2269 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3762 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2270 | if (expect_false (getpid () != curpid)) |
3763 | if (ecb_expect_false (getpid () != curpid)) |
2271 | { |
3764 | { |
2272 | curpid = getpid (); |
3765 | curpid = getpid (); |
2273 | postfork = 1; |
3766 | postfork = 1; |
2274 | } |
3767 | } |
2275 | #endif |
3768 | #endif |
2276 | |
3769 | |
2277 | #if EV_FORK_ENABLE |
3770 | #if EV_FORK_ENABLE |
2278 | /* we might have forked, so queue fork handlers */ |
3771 | /* we might have forked, so queue fork handlers */ |
2279 | if (expect_false (postfork)) |
3772 | if (ecb_expect_false (postfork)) |
2280 | if (forkcnt) |
3773 | if (forkcnt) |
2281 | { |
3774 | { |
2282 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3775 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2283 | EV_INVOKE_PENDING; |
3776 | EV_INVOKE_PENDING; |
2284 | } |
3777 | } |
2285 | #endif |
3778 | #endif |
2286 | |
3779 | |
|
|
3780 | #if EV_PREPARE_ENABLE |
2287 | /* queue prepare watchers (and execute them) */ |
3781 | /* queue prepare watchers (and execute them) */ |
2288 | if (expect_false (preparecnt)) |
3782 | if (ecb_expect_false (preparecnt)) |
2289 | { |
3783 | { |
2290 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3784 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2291 | EV_INVOKE_PENDING; |
3785 | EV_INVOKE_PENDING; |
2292 | } |
3786 | } |
|
|
3787 | #endif |
2293 | |
3788 | |
2294 | if (expect_false (loop_done)) |
3789 | if (ecb_expect_false (loop_done)) |
2295 | break; |
3790 | break; |
2296 | |
3791 | |
2297 | /* we might have forked, so reify kernel state if necessary */ |
3792 | /* we might have forked, so reify kernel state if necessary */ |
2298 | if (expect_false (postfork)) |
3793 | if (ecb_expect_false (postfork)) |
2299 | loop_fork (EV_A); |
3794 | loop_fork (EV_A); |
2300 | |
3795 | |
2301 | /* update fd-related kernel structures */ |
3796 | /* update fd-related kernel structures */ |
2302 | fd_reify (EV_A); |
3797 | fd_reify (EV_A); |
2303 | |
3798 | |
2304 | /* calculate blocking time */ |
3799 | /* calculate blocking time */ |
2305 | { |
3800 | { |
2306 | ev_tstamp waittime = 0.; |
3801 | ev_tstamp waittime = 0.; |
2307 | ev_tstamp sleeptime = 0.; |
3802 | ev_tstamp sleeptime = 0.; |
2308 | |
3803 | |
|
|
3804 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3805 | ev_tstamp prev_mn_now = mn_now; |
|
|
3806 | |
|
|
3807 | /* update time to cancel out callback processing overhead */ |
|
|
3808 | time_update (EV_A_ 1e100); |
|
|
3809 | |
|
|
3810 | /* from now on, we want a pipe-wake-up */ |
|
|
3811 | pipe_write_wanted = 1; |
|
|
3812 | |
|
|
3813 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3814 | |
2309 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3815 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2310 | { |
3816 | { |
2311 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2312 | ev_tstamp prev_mn_now = mn_now; |
|
|
2313 | |
|
|
2314 | /* update time to cancel out callback processing overhead */ |
|
|
2315 | time_update (EV_A_ 1e100); |
|
|
2316 | |
|
|
2317 | waittime = MAX_BLOCKTIME; |
3817 | waittime = MAX_BLOCKTIME; |
2318 | |
3818 | |
2319 | if (timercnt) |
3819 | if (timercnt) |
2320 | { |
3820 | { |
2321 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3821 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2322 | if (waittime > to) waittime = to; |
3822 | if (waittime > to) waittime = to; |
2323 | } |
3823 | } |
2324 | |
3824 | |
2325 | #if EV_PERIODIC_ENABLE |
3825 | #if EV_PERIODIC_ENABLE |
2326 | if (periodiccnt) |
3826 | if (periodiccnt) |
2327 | { |
3827 | { |
2328 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3828 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2329 | if (waittime > to) waittime = to; |
3829 | if (waittime > to) waittime = to; |
2330 | } |
3830 | } |
2331 | #endif |
3831 | #endif |
2332 | |
3832 | |
2333 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3833 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2334 | if (expect_false (waittime < timeout_blocktime)) |
3834 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2335 | waittime = timeout_blocktime; |
3835 | waittime = timeout_blocktime; |
2336 | |
3836 | |
|
|
3837 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3838 | /* to pass a minimum nonzero value to the backend */ |
|
|
3839 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3840 | waittime = backend_mintime; |
|
|
3841 | |
2337 | /* extra check because io_blocktime is commonly 0 */ |
3842 | /* extra check because io_blocktime is commonly 0 */ |
2338 | if (expect_false (io_blocktime)) |
3843 | if (ecb_expect_false (io_blocktime)) |
2339 | { |
3844 | { |
2340 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3845 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2341 | |
3846 | |
2342 | if (sleeptime > waittime - backend_fudge) |
3847 | if (sleeptime > waittime - backend_mintime) |
2343 | sleeptime = waittime - backend_fudge; |
3848 | sleeptime = waittime - backend_mintime; |
2344 | |
3849 | |
2345 | if (expect_true (sleeptime > 0.)) |
3850 | if (ecb_expect_true (sleeptime > 0.)) |
2346 | { |
3851 | { |
2347 | ev_sleep (sleeptime); |
3852 | ev_sleep (sleeptime); |
2348 | waittime -= sleeptime; |
3853 | waittime -= sleeptime; |
2349 | } |
3854 | } |
2350 | } |
3855 | } |
2351 | } |
3856 | } |
2352 | |
3857 | |
2353 | #if EV_MINIMAL < 2 |
3858 | #if EV_FEATURE_API |
2354 | ++loop_count; |
3859 | ++loop_count; |
2355 | #endif |
3860 | #endif |
2356 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3861 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2357 | backend_poll (EV_A_ waittime); |
3862 | backend_poll (EV_A_ waittime); |
2358 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3863 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3864 | |
|
|
3865 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3866 | |
|
|
3867 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3868 | if (pipe_write_skipped) |
|
|
3869 | { |
|
|
3870 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3871 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3872 | } |
2359 | |
3873 | |
2360 | /* update ev_rt_now, do magic */ |
3874 | /* update ev_rt_now, do magic */ |
2361 | time_update (EV_A_ waittime + sleeptime); |
3875 | time_update (EV_A_ waittime + sleeptime); |
2362 | } |
3876 | } |
2363 | |
3877 | |
… | |
… | |
2370 | #if EV_IDLE_ENABLE |
3884 | #if EV_IDLE_ENABLE |
2371 | /* queue idle watchers unless other events are pending */ |
3885 | /* queue idle watchers unless other events are pending */ |
2372 | idle_reify (EV_A); |
3886 | idle_reify (EV_A); |
2373 | #endif |
3887 | #endif |
2374 | |
3888 | |
|
|
3889 | #if EV_CHECK_ENABLE |
2375 | /* queue check watchers, to be executed first */ |
3890 | /* queue check watchers, to be executed first */ |
2376 | if (expect_false (checkcnt)) |
3891 | if (ecb_expect_false (checkcnt)) |
2377 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3892 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3893 | #endif |
2378 | |
3894 | |
2379 | EV_INVOKE_PENDING; |
3895 | EV_INVOKE_PENDING; |
2380 | } |
3896 | } |
2381 | while (expect_true ( |
3897 | while (ecb_expect_true ( |
2382 | activecnt |
3898 | activecnt |
2383 | && !loop_done |
3899 | && !loop_done |
2384 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3900 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2385 | )); |
3901 | )); |
2386 | |
3902 | |
2387 | if (loop_done == EVUNLOOP_ONE) |
3903 | if (loop_done == EVBREAK_ONE) |
2388 | loop_done = EVUNLOOP_CANCEL; |
3904 | loop_done = EVBREAK_CANCEL; |
2389 | |
3905 | |
2390 | #if EV_MINIMAL < 2 |
3906 | #if EV_FEATURE_API |
2391 | --loop_depth; |
3907 | --loop_depth; |
2392 | #endif |
3908 | #endif |
2393 | } |
|
|
2394 | |
3909 | |
|
|
3910 | return activecnt; |
|
|
3911 | } |
|
|
3912 | |
2395 | void |
3913 | void |
2396 | ev_unloop (EV_P_ int how) |
3914 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2397 | { |
3915 | { |
2398 | loop_done = how; |
3916 | loop_done = how; |
2399 | } |
3917 | } |
2400 | |
3918 | |
2401 | void |
3919 | void |
2402 | ev_ref (EV_P) |
3920 | ev_ref (EV_P) EV_NOEXCEPT |
2403 | { |
3921 | { |
2404 | ++activecnt; |
3922 | ++activecnt; |
2405 | } |
3923 | } |
2406 | |
3924 | |
2407 | void |
3925 | void |
2408 | ev_unref (EV_P) |
3926 | ev_unref (EV_P) EV_NOEXCEPT |
2409 | { |
3927 | { |
2410 | --activecnt; |
3928 | --activecnt; |
2411 | } |
3929 | } |
2412 | |
3930 | |
2413 | void |
3931 | void |
2414 | ev_now_update (EV_P) |
3932 | ev_now_update (EV_P) EV_NOEXCEPT |
2415 | { |
3933 | { |
2416 | time_update (EV_A_ 1e100); |
3934 | time_update (EV_A_ 1e100); |
2417 | } |
3935 | } |
2418 | |
3936 | |
2419 | void |
3937 | void |
2420 | ev_suspend (EV_P) |
3938 | ev_suspend (EV_P) EV_NOEXCEPT |
2421 | { |
3939 | { |
2422 | ev_now_update (EV_A); |
3940 | ev_now_update (EV_A); |
2423 | } |
3941 | } |
2424 | |
3942 | |
2425 | void |
3943 | void |
2426 | ev_resume (EV_P) |
3944 | ev_resume (EV_P) EV_NOEXCEPT |
2427 | { |
3945 | { |
2428 | ev_tstamp mn_prev = mn_now; |
3946 | ev_tstamp mn_prev = mn_now; |
2429 | |
3947 | |
2430 | ev_now_update (EV_A); |
3948 | ev_now_update (EV_A); |
2431 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3949 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2448 | inline_size void |
3966 | inline_size void |
2449 | wlist_del (WL *head, WL elem) |
3967 | wlist_del (WL *head, WL elem) |
2450 | { |
3968 | { |
2451 | while (*head) |
3969 | while (*head) |
2452 | { |
3970 | { |
2453 | if (expect_true (*head == elem)) |
3971 | if (ecb_expect_true (*head == elem)) |
2454 | { |
3972 | { |
2455 | *head = elem->next; |
3973 | *head = elem->next; |
2456 | break; |
3974 | break; |
2457 | } |
3975 | } |
2458 | |
3976 | |
… | |
… | |
2470 | w->pending = 0; |
3988 | w->pending = 0; |
2471 | } |
3989 | } |
2472 | } |
3990 | } |
2473 | |
3991 | |
2474 | int |
3992 | int |
2475 | ev_clear_pending (EV_P_ void *w) |
3993 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2476 | { |
3994 | { |
2477 | W w_ = (W)w; |
3995 | W w_ = (W)w; |
2478 | int pending = w_->pending; |
3996 | int pending = w_->pending; |
2479 | |
3997 | |
2480 | if (expect_true (pending)) |
3998 | if (ecb_expect_true (pending)) |
2481 | { |
3999 | { |
2482 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4000 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2483 | p->w = (W)&pending_w; |
4001 | p->w = (W)&pending_w; |
2484 | w_->pending = 0; |
4002 | w_->pending = 0; |
2485 | return p->events; |
4003 | return p->events; |
… | |
… | |
2512 | w->active = 0; |
4030 | w->active = 0; |
2513 | } |
4031 | } |
2514 | |
4032 | |
2515 | /*****************************************************************************/ |
4033 | /*****************************************************************************/ |
2516 | |
4034 | |
2517 | void noinline |
4035 | ecb_noinline |
|
|
4036 | void |
2518 | ev_io_start (EV_P_ ev_io *w) |
4037 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2519 | { |
4038 | { |
2520 | int fd = w->fd; |
4039 | int fd = w->fd; |
2521 | |
4040 | |
2522 | if (expect_false (ev_is_active (w))) |
4041 | if (ecb_expect_false (ev_is_active (w))) |
2523 | return; |
4042 | return; |
2524 | |
4043 | |
2525 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4044 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2526 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4045 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2527 | |
4046 | |
|
|
4047 | #if EV_VERIFY >= 2 |
|
|
4048 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4049 | #endif |
2528 | EV_FREQUENT_CHECK; |
4050 | EV_FREQUENT_CHECK; |
2529 | |
4051 | |
2530 | ev_start (EV_A_ (W)w, 1); |
4052 | ev_start (EV_A_ (W)w, 1); |
2531 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4053 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2532 | wlist_add (&anfds[fd].head, (WL)w); |
4054 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4055 | |
|
|
4056 | /* common bug, apparently */ |
|
|
4057 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2533 | |
4058 | |
2534 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4059 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2535 | w->events &= ~EV__IOFDSET; |
4060 | w->events &= ~EV__IOFDSET; |
2536 | |
4061 | |
2537 | EV_FREQUENT_CHECK; |
4062 | EV_FREQUENT_CHECK; |
2538 | } |
4063 | } |
2539 | |
4064 | |
2540 | void noinline |
4065 | ecb_noinline |
|
|
4066 | void |
2541 | ev_io_stop (EV_P_ ev_io *w) |
4067 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2542 | { |
4068 | { |
2543 | clear_pending (EV_A_ (W)w); |
4069 | clear_pending (EV_A_ (W)w); |
2544 | if (expect_false (!ev_is_active (w))) |
4070 | if (ecb_expect_false (!ev_is_active (w))) |
2545 | return; |
4071 | return; |
2546 | |
4072 | |
2547 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4073 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2548 | |
4074 | |
|
|
4075 | #if EV_VERIFY >= 2 |
|
|
4076 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4077 | #endif |
2549 | EV_FREQUENT_CHECK; |
4078 | EV_FREQUENT_CHECK; |
2550 | |
4079 | |
2551 | wlist_del (&anfds[w->fd].head, (WL)w); |
4080 | wlist_del (&anfds[w->fd].head, (WL)w); |
2552 | ev_stop (EV_A_ (W)w); |
4081 | ev_stop (EV_A_ (W)w); |
2553 | |
4082 | |
2554 | fd_change (EV_A_ w->fd, 1); |
4083 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2555 | |
4084 | |
2556 | EV_FREQUENT_CHECK; |
4085 | EV_FREQUENT_CHECK; |
2557 | } |
4086 | } |
2558 | |
4087 | |
2559 | void noinline |
4088 | ecb_noinline |
|
|
4089 | void |
2560 | ev_timer_start (EV_P_ ev_timer *w) |
4090 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2561 | { |
4091 | { |
2562 | if (expect_false (ev_is_active (w))) |
4092 | if (ecb_expect_false (ev_is_active (w))) |
2563 | return; |
4093 | return; |
2564 | |
4094 | |
2565 | ev_at (w) += mn_now; |
4095 | ev_at (w) += mn_now; |
2566 | |
4096 | |
2567 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4097 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2568 | |
4098 | |
2569 | EV_FREQUENT_CHECK; |
4099 | EV_FREQUENT_CHECK; |
2570 | |
4100 | |
2571 | ++timercnt; |
4101 | ++timercnt; |
2572 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4102 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2573 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4103 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2574 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4104 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2575 | ANHE_at_cache (timers [ev_active (w)]); |
4105 | ANHE_at_cache (timers [ev_active (w)]); |
2576 | upheap (timers, ev_active (w)); |
4106 | upheap (timers, ev_active (w)); |
2577 | |
4107 | |
2578 | EV_FREQUENT_CHECK; |
4108 | EV_FREQUENT_CHECK; |
2579 | |
4109 | |
2580 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4110 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2581 | } |
4111 | } |
2582 | |
4112 | |
2583 | void noinline |
4113 | ecb_noinline |
|
|
4114 | void |
2584 | ev_timer_stop (EV_P_ ev_timer *w) |
4115 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2585 | { |
4116 | { |
2586 | clear_pending (EV_A_ (W)w); |
4117 | clear_pending (EV_A_ (W)w); |
2587 | if (expect_false (!ev_is_active (w))) |
4118 | if (ecb_expect_false (!ev_is_active (w))) |
2588 | return; |
4119 | return; |
2589 | |
4120 | |
2590 | EV_FREQUENT_CHECK; |
4121 | EV_FREQUENT_CHECK; |
2591 | |
4122 | |
2592 | { |
4123 | { |
… | |
… | |
2594 | |
4125 | |
2595 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4126 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2596 | |
4127 | |
2597 | --timercnt; |
4128 | --timercnt; |
2598 | |
4129 | |
2599 | if (expect_true (active < timercnt + HEAP0)) |
4130 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2600 | { |
4131 | { |
2601 | timers [active] = timers [timercnt + HEAP0]; |
4132 | timers [active] = timers [timercnt + HEAP0]; |
2602 | adjustheap (timers, timercnt, active); |
4133 | adjustheap (timers, timercnt, active); |
2603 | } |
4134 | } |
2604 | } |
4135 | } |
… | |
… | |
2608 | ev_stop (EV_A_ (W)w); |
4139 | ev_stop (EV_A_ (W)w); |
2609 | |
4140 | |
2610 | EV_FREQUENT_CHECK; |
4141 | EV_FREQUENT_CHECK; |
2611 | } |
4142 | } |
2612 | |
4143 | |
2613 | void noinline |
4144 | ecb_noinline |
|
|
4145 | void |
2614 | ev_timer_again (EV_P_ ev_timer *w) |
4146 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2615 | { |
4147 | { |
2616 | EV_FREQUENT_CHECK; |
4148 | EV_FREQUENT_CHECK; |
|
|
4149 | |
|
|
4150 | clear_pending (EV_A_ (W)w); |
2617 | |
4151 | |
2618 | if (ev_is_active (w)) |
4152 | if (ev_is_active (w)) |
2619 | { |
4153 | { |
2620 | if (w->repeat) |
4154 | if (w->repeat) |
2621 | { |
4155 | { |
… | |
… | |
2634 | |
4168 | |
2635 | EV_FREQUENT_CHECK; |
4169 | EV_FREQUENT_CHECK; |
2636 | } |
4170 | } |
2637 | |
4171 | |
2638 | ev_tstamp |
4172 | ev_tstamp |
2639 | ev_timer_remaining (EV_P_ ev_timer *w) |
4173 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2640 | { |
4174 | { |
2641 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4175 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2642 | } |
4176 | } |
2643 | |
4177 | |
2644 | #if EV_PERIODIC_ENABLE |
4178 | #if EV_PERIODIC_ENABLE |
2645 | void noinline |
4179 | ecb_noinline |
|
|
4180 | void |
2646 | ev_periodic_start (EV_P_ ev_periodic *w) |
4181 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2647 | { |
4182 | { |
2648 | if (expect_false (ev_is_active (w))) |
4183 | if (ecb_expect_false (ev_is_active (w))) |
2649 | return; |
4184 | return; |
2650 | |
4185 | |
2651 | if (w->reschedule_cb) |
4186 | if (w->reschedule_cb) |
2652 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4187 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2653 | else if (w->interval) |
4188 | else if (w->interval) |
2654 | { |
4189 | { |
2655 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4190 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2656 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4191 | periodic_recalc (EV_A_ w); |
2657 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2658 | } |
4192 | } |
2659 | else |
4193 | else |
2660 | ev_at (w) = w->offset; |
4194 | ev_at (w) = w->offset; |
2661 | |
4195 | |
2662 | EV_FREQUENT_CHECK; |
4196 | EV_FREQUENT_CHECK; |
2663 | |
4197 | |
2664 | ++periodiccnt; |
4198 | ++periodiccnt; |
2665 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4199 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2666 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4200 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2667 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4201 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2668 | ANHE_at_cache (periodics [ev_active (w)]); |
4202 | ANHE_at_cache (periodics [ev_active (w)]); |
2669 | upheap (periodics, ev_active (w)); |
4203 | upheap (periodics, ev_active (w)); |
2670 | |
4204 | |
2671 | EV_FREQUENT_CHECK; |
4205 | EV_FREQUENT_CHECK; |
2672 | |
4206 | |
2673 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4207 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2674 | } |
4208 | } |
2675 | |
4209 | |
2676 | void noinline |
4210 | ecb_noinline |
|
|
4211 | void |
2677 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4212 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2678 | { |
4213 | { |
2679 | clear_pending (EV_A_ (W)w); |
4214 | clear_pending (EV_A_ (W)w); |
2680 | if (expect_false (!ev_is_active (w))) |
4215 | if (ecb_expect_false (!ev_is_active (w))) |
2681 | return; |
4216 | return; |
2682 | |
4217 | |
2683 | EV_FREQUENT_CHECK; |
4218 | EV_FREQUENT_CHECK; |
2684 | |
4219 | |
2685 | { |
4220 | { |
… | |
… | |
2687 | |
4222 | |
2688 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4223 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2689 | |
4224 | |
2690 | --periodiccnt; |
4225 | --periodiccnt; |
2691 | |
4226 | |
2692 | if (expect_true (active < periodiccnt + HEAP0)) |
4227 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2693 | { |
4228 | { |
2694 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4229 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2695 | adjustheap (periodics, periodiccnt, active); |
4230 | adjustheap (periodics, periodiccnt, active); |
2696 | } |
4231 | } |
2697 | } |
4232 | } |
… | |
… | |
2699 | ev_stop (EV_A_ (W)w); |
4234 | ev_stop (EV_A_ (W)w); |
2700 | |
4235 | |
2701 | EV_FREQUENT_CHECK; |
4236 | EV_FREQUENT_CHECK; |
2702 | } |
4237 | } |
2703 | |
4238 | |
2704 | void noinline |
4239 | ecb_noinline |
|
|
4240 | void |
2705 | ev_periodic_again (EV_P_ ev_periodic *w) |
4241 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2706 | { |
4242 | { |
2707 | /* TODO: use adjustheap and recalculation */ |
4243 | /* TODO: use adjustheap and recalculation */ |
2708 | ev_periodic_stop (EV_A_ w); |
4244 | ev_periodic_stop (EV_A_ w); |
2709 | ev_periodic_start (EV_A_ w); |
4245 | ev_periodic_start (EV_A_ w); |
2710 | } |
4246 | } |
… | |
… | |
2712 | |
4248 | |
2713 | #ifndef SA_RESTART |
4249 | #ifndef SA_RESTART |
2714 | # define SA_RESTART 0 |
4250 | # define SA_RESTART 0 |
2715 | #endif |
4251 | #endif |
2716 | |
4252 | |
2717 | void noinline |
4253 | #if EV_SIGNAL_ENABLE |
|
|
4254 | |
|
|
4255 | ecb_noinline |
|
|
4256 | void |
2718 | ev_signal_start (EV_P_ ev_signal *w) |
4257 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2719 | { |
4258 | { |
2720 | if (expect_false (ev_is_active (w))) |
4259 | if (ecb_expect_false (ev_is_active (w))) |
2721 | return; |
4260 | return; |
2722 | |
4261 | |
2723 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4262 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2724 | |
4263 | |
2725 | #if EV_MULTIPLICITY |
4264 | #if EV_MULTIPLICITY |
2726 | assert (("libev: a signal must not be attached to two different loops", |
4265 | assert (("libev: a signal must not be attached to two different loops", |
2727 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4266 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2728 | |
4267 | |
2729 | signals [w->signum - 1].loop = EV_A; |
4268 | signals [w->signum - 1].loop = EV_A; |
|
|
4269 | ECB_MEMORY_FENCE_RELEASE; |
2730 | #endif |
4270 | #endif |
2731 | |
4271 | |
2732 | EV_FREQUENT_CHECK; |
4272 | EV_FREQUENT_CHECK; |
2733 | |
4273 | |
2734 | #if EV_USE_SIGNALFD |
4274 | #if EV_USE_SIGNALFD |
… | |
… | |
2781 | sa.sa_handler = ev_sighandler; |
4321 | sa.sa_handler = ev_sighandler; |
2782 | sigfillset (&sa.sa_mask); |
4322 | sigfillset (&sa.sa_mask); |
2783 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4323 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2784 | sigaction (w->signum, &sa, 0); |
4324 | sigaction (w->signum, &sa, 0); |
2785 | |
4325 | |
|
|
4326 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4327 | { |
2786 | sigemptyset (&sa.sa_mask); |
4328 | sigemptyset (&sa.sa_mask); |
2787 | sigaddset (&sa.sa_mask, w->signum); |
4329 | sigaddset (&sa.sa_mask, w->signum); |
2788 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
4330 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4331 | } |
2789 | #endif |
4332 | #endif |
2790 | } |
4333 | } |
2791 | |
4334 | |
2792 | EV_FREQUENT_CHECK; |
4335 | EV_FREQUENT_CHECK; |
2793 | } |
4336 | } |
2794 | |
4337 | |
2795 | void noinline |
4338 | ecb_noinline |
|
|
4339 | void |
2796 | ev_signal_stop (EV_P_ ev_signal *w) |
4340 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2797 | { |
4341 | { |
2798 | clear_pending (EV_A_ (W)w); |
4342 | clear_pending (EV_A_ (W)w); |
2799 | if (expect_false (!ev_is_active (w))) |
4343 | if (ecb_expect_false (!ev_is_active (w))) |
2800 | return; |
4344 | return; |
2801 | |
4345 | |
2802 | EV_FREQUENT_CHECK; |
4346 | EV_FREQUENT_CHECK; |
2803 | |
4347 | |
2804 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4348 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
2827 | } |
4371 | } |
2828 | |
4372 | |
2829 | EV_FREQUENT_CHECK; |
4373 | EV_FREQUENT_CHECK; |
2830 | } |
4374 | } |
2831 | |
4375 | |
|
|
4376 | #endif |
|
|
4377 | |
|
|
4378 | #if EV_CHILD_ENABLE |
|
|
4379 | |
2832 | void |
4380 | void |
2833 | ev_child_start (EV_P_ ev_child *w) |
4381 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2834 | { |
4382 | { |
2835 | #if EV_MULTIPLICITY |
4383 | #if EV_MULTIPLICITY |
2836 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4384 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2837 | #endif |
4385 | #endif |
2838 | if (expect_false (ev_is_active (w))) |
4386 | if (ecb_expect_false (ev_is_active (w))) |
2839 | return; |
4387 | return; |
2840 | |
4388 | |
2841 | EV_FREQUENT_CHECK; |
4389 | EV_FREQUENT_CHECK; |
2842 | |
4390 | |
2843 | ev_start (EV_A_ (W)w, 1); |
4391 | ev_start (EV_A_ (W)w, 1); |
2844 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4392 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2845 | |
4393 | |
2846 | EV_FREQUENT_CHECK; |
4394 | EV_FREQUENT_CHECK; |
2847 | } |
4395 | } |
2848 | |
4396 | |
2849 | void |
4397 | void |
2850 | ev_child_stop (EV_P_ ev_child *w) |
4398 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2851 | { |
4399 | { |
2852 | clear_pending (EV_A_ (W)w); |
4400 | clear_pending (EV_A_ (W)w); |
2853 | if (expect_false (!ev_is_active (w))) |
4401 | if (ecb_expect_false (!ev_is_active (w))) |
2854 | return; |
4402 | return; |
2855 | |
4403 | |
2856 | EV_FREQUENT_CHECK; |
4404 | EV_FREQUENT_CHECK; |
2857 | |
4405 | |
2858 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4406 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2859 | ev_stop (EV_A_ (W)w); |
4407 | ev_stop (EV_A_ (W)w); |
2860 | |
4408 | |
2861 | EV_FREQUENT_CHECK; |
4409 | EV_FREQUENT_CHECK; |
2862 | } |
4410 | } |
|
|
4411 | |
|
|
4412 | #endif |
2863 | |
4413 | |
2864 | #if EV_STAT_ENABLE |
4414 | #if EV_STAT_ENABLE |
2865 | |
4415 | |
2866 | # ifdef _WIN32 |
4416 | # ifdef _WIN32 |
2867 | # undef lstat |
4417 | # undef lstat |
… | |
… | |
2870 | |
4420 | |
2871 | #define DEF_STAT_INTERVAL 5.0074891 |
4421 | #define DEF_STAT_INTERVAL 5.0074891 |
2872 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4422 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2873 | #define MIN_STAT_INTERVAL 0.1074891 |
4423 | #define MIN_STAT_INTERVAL 0.1074891 |
2874 | |
4424 | |
2875 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4425 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2876 | |
4426 | |
2877 | #if EV_USE_INOTIFY |
4427 | #if EV_USE_INOTIFY |
2878 | |
4428 | |
2879 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4429 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
2880 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4430 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2881 | |
4431 | |
2882 | static void noinline |
4432 | ecb_noinline |
|
|
4433 | static void |
2883 | infy_add (EV_P_ ev_stat *w) |
4434 | infy_add (EV_P_ ev_stat *w) |
2884 | { |
4435 | { |
2885 | 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); |
4436 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4437 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4438 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4439 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2886 | |
4440 | |
2887 | if (w->wd >= 0) |
4441 | if (w->wd >= 0) |
2888 | { |
4442 | { |
2889 | struct statfs sfs; |
4443 | struct statfs sfs; |
2890 | |
4444 | |
… | |
… | |
2894 | |
4448 | |
2895 | if (!fs_2625) |
4449 | if (!fs_2625) |
2896 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4450 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2897 | else if (!statfs (w->path, &sfs) |
4451 | else if (!statfs (w->path, &sfs) |
2898 | && (sfs.f_type == 0x1373 /* devfs */ |
4452 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4453 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4454 | || sfs.f_type == 0x4d44 /* msdos */ |
2899 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4455 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4456 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4457 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4458 | || sfs.f_type == 0x5346544e /* ntfs */ |
2900 | || sfs.f_type == 0x3153464a /* jfs */ |
4459 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4460 | || sfs.f_type == 0x9123683e /* btrfs */ |
2901 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4461 | || sfs.f_type == 0x52654973 /* reiser3 */ |
2902 | || sfs.f_type == 0x01021994 /* tempfs */ |
4462 | || sfs.f_type == 0x01021994 /* tmpfs */ |
2903 | || sfs.f_type == 0x58465342 /* xfs */)) |
4463 | || sfs.f_type == 0x58465342 /* xfs */)) |
2904 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4464 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
2905 | else |
4465 | else |
2906 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4466 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2907 | } |
4467 | } |
… | |
… | |
2928 | if (!pend || pend == path) |
4488 | if (!pend || pend == path) |
2929 | break; |
4489 | break; |
2930 | |
4490 | |
2931 | *pend = 0; |
4491 | *pend = 0; |
2932 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4492 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2933 | } |
4493 | } |
2934 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4494 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2935 | } |
4495 | } |
2936 | } |
4496 | } |
2937 | |
4497 | |
2938 | if (w->wd >= 0) |
4498 | if (w->wd >= 0) |
2939 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4499 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2940 | |
4500 | |
2941 | /* now re-arm timer, if required */ |
4501 | /* now re-arm timer, if required */ |
2942 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4502 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2943 | ev_timer_again (EV_A_ &w->timer); |
4503 | ev_timer_again (EV_A_ &w->timer); |
2944 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4504 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2945 | } |
4505 | } |
2946 | |
4506 | |
2947 | static void noinline |
4507 | ecb_noinline |
|
|
4508 | static void |
2948 | infy_del (EV_P_ ev_stat *w) |
4509 | infy_del (EV_P_ ev_stat *w) |
2949 | { |
4510 | { |
2950 | int slot; |
4511 | int slot; |
2951 | int wd = w->wd; |
4512 | int wd = w->wd; |
2952 | |
4513 | |
2953 | if (wd < 0) |
4514 | if (wd < 0) |
2954 | return; |
4515 | return; |
2955 | |
4516 | |
2956 | w->wd = -2; |
4517 | w->wd = -2; |
2957 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4518 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2958 | wlist_del (&fs_hash [slot].head, (WL)w); |
4519 | wlist_del (&fs_hash [slot].head, (WL)w); |
2959 | |
4520 | |
2960 | /* remove this watcher, if others are watching it, they will rearm */ |
4521 | /* remove this watcher, if others are watching it, they will rearm */ |
2961 | inotify_rm_watch (fs_fd, wd); |
4522 | inotify_rm_watch (fs_fd, wd); |
2962 | } |
4523 | } |
2963 | |
4524 | |
2964 | static void noinline |
4525 | ecb_noinline |
|
|
4526 | static void |
2965 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4527 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2966 | { |
4528 | { |
2967 | if (slot < 0) |
4529 | if (slot < 0) |
2968 | /* overflow, need to check for all hash slots */ |
4530 | /* overflow, need to check for all hash slots */ |
2969 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4531 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2970 | infy_wd (EV_A_ slot, wd, ev); |
4532 | infy_wd (EV_A_ slot, wd, ev); |
2971 | else |
4533 | else |
2972 | { |
4534 | { |
2973 | WL w_; |
4535 | WL w_; |
2974 | |
4536 | |
2975 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4537 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2976 | { |
4538 | { |
2977 | ev_stat *w = (ev_stat *)w_; |
4539 | ev_stat *w = (ev_stat *)w_; |
2978 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4540 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2979 | |
4541 | |
2980 | if (w->wd == wd || wd == -1) |
4542 | if (w->wd == wd || wd == -1) |
2981 | { |
4543 | { |
2982 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4544 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2983 | { |
4545 | { |
2984 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4546 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2985 | w->wd = -1; |
4547 | w->wd = -1; |
2986 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4548 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2987 | } |
4549 | } |
2988 | |
4550 | |
2989 | stat_timer_cb (EV_A_ &w->timer, 0); |
4551 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
3005 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4567 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3006 | ofs += sizeof (struct inotify_event) + ev->len; |
4568 | ofs += sizeof (struct inotify_event) + ev->len; |
3007 | } |
4569 | } |
3008 | } |
4570 | } |
3009 | |
4571 | |
3010 | inline_size unsigned int |
|
|
3011 | ev_linux_version (void) |
|
|
3012 | { |
|
|
3013 | struct utsname buf; |
|
|
3014 | unsigned int v; |
|
|
3015 | int i; |
|
|
3016 | char *p = buf.release; |
|
|
3017 | |
|
|
3018 | if (uname (&buf)) |
|
|
3019 | return 0; |
|
|
3020 | |
|
|
3021 | for (i = 3+1; --i; ) |
|
|
3022 | { |
|
|
3023 | unsigned int c = 0; |
|
|
3024 | |
|
|
3025 | for (;;) |
|
|
3026 | { |
|
|
3027 | if (*p >= '0' && *p <= '9') |
|
|
3028 | c = c * 10 + *p++ - '0'; |
|
|
3029 | else |
|
|
3030 | { |
|
|
3031 | p += *p == '.'; |
|
|
3032 | break; |
|
|
3033 | } |
|
|
3034 | } |
|
|
3035 | |
|
|
3036 | v = (v << 8) | c; |
|
|
3037 | } |
|
|
3038 | |
|
|
3039 | return v; |
|
|
3040 | } |
|
|
3041 | |
|
|
3042 | inline_size void |
4572 | inline_size ecb_cold |
|
|
4573 | void |
3043 | ev_check_2625 (EV_P) |
4574 | ev_check_2625 (EV_P) |
3044 | { |
4575 | { |
3045 | /* kernels < 2.6.25 are borked |
4576 | /* kernels < 2.6.25 are borked |
3046 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4577 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3047 | */ |
4578 | */ |
… | |
… | |
3052 | } |
4583 | } |
3053 | |
4584 | |
3054 | inline_size int |
4585 | inline_size int |
3055 | infy_newfd (void) |
4586 | infy_newfd (void) |
3056 | { |
4587 | { |
3057 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4588 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3058 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4589 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3059 | if (fd >= 0) |
4590 | if (fd >= 0) |
3060 | return fd; |
4591 | return fd; |
3061 | #endif |
4592 | #endif |
3062 | return inotify_init (); |
4593 | return inotify_init (); |
… | |
… | |
3103 | ev_io_set (&fs_w, fs_fd, EV_READ); |
4634 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3104 | ev_io_start (EV_A_ &fs_w); |
4635 | ev_io_start (EV_A_ &fs_w); |
3105 | ev_unref (EV_A); |
4636 | ev_unref (EV_A); |
3106 | } |
4637 | } |
3107 | |
4638 | |
3108 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4639 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3109 | { |
4640 | { |
3110 | WL w_ = fs_hash [slot].head; |
4641 | WL w_ = fs_hash [slot].head; |
3111 | fs_hash [slot].head = 0; |
4642 | fs_hash [slot].head = 0; |
3112 | |
4643 | |
3113 | while (w_) |
4644 | while (w_) |
… | |
… | |
3137 | #else |
4668 | #else |
3138 | # define EV_LSTAT(p,b) lstat (p, b) |
4669 | # define EV_LSTAT(p,b) lstat (p, b) |
3139 | #endif |
4670 | #endif |
3140 | |
4671 | |
3141 | void |
4672 | void |
3142 | ev_stat_stat (EV_P_ ev_stat *w) |
4673 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3143 | { |
4674 | { |
3144 | if (lstat (w->path, &w->attr) < 0) |
4675 | if (lstat (w->path, &w->attr) < 0) |
3145 | w->attr.st_nlink = 0; |
4676 | w->attr.st_nlink = 0; |
3146 | else if (!w->attr.st_nlink) |
4677 | else if (!w->attr.st_nlink) |
3147 | w->attr.st_nlink = 1; |
4678 | w->attr.st_nlink = 1; |
3148 | } |
4679 | } |
3149 | |
4680 | |
3150 | static void noinline |
4681 | ecb_noinline |
|
|
4682 | static void |
3151 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4683 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3152 | { |
4684 | { |
3153 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4685 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3154 | |
4686 | |
3155 | ev_statdata prev = w->attr; |
4687 | ev_statdata prev = w->attr; |
… | |
… | |
3186 | ev_feed_event (EV_A_ w, EV_STAT); |
4718 | ev_feed_event (EV_A_ w, EV_STAT); |
3187 | } |
4719 | } |
3188 | } |
4720 | } |
3189 | |
4721 | |
3190 | void |
4722 | void |
3191 | ev_stat_start (EV_P_ ev_stat *w) |
4723 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3192 | { |
4724 | { |
3193 | if (expect_false (ev_is_active (w))) |
4725 | if (ecb_expect_false (ev_is_active (w))) |
3194 | return; |
4726 | return; |
3195 | |
4727 | |
3196 | ev_stat_stat (EV_A_ w); |
4728 | ev_stat_stat (EV_A_ w); |
3197 | |
4729 | |
3198 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4730 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3217 | |
4749 | |
3218 | EV_FREQUENT_CHECK; |
4750 | EV_FREQUENT_CHECK; |
3219 | } |
4751 | } |
3220 | |
4752 | |
3221 | void |
4753 | void |
3222 | ev_stat_stop (EV_P_ ev_stat *w) |
4754 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3223 | { |
4755 | { |
3224 | clear_pending (EV_A_ (W)w); |
4756 | clear_pending (EV_A_ (W)w); |
3225 | if (expect_false (!ev_is_active (w))) |
4757 | if (ecb_expect_false (!ev_is_active (w))) |
3226 | return; |
4758 | return; |
3227 | |
4759 | |
3228 | EV_FREQUENT_CHECK; |
4760 | EV_FREQUENT_CHECK; |
3229 | |
4761 | |
3230 | #if EV_USE_INOTIFY |
4762 | #if EV_USE_INOTIFY |
… | |
… | |
3243 | } |
4775 | } |
3244 | #endif |
4776 | #endif |
3245 | |
4777 | |
3246 | #if EV_IDLE_ENABLE |
4778 | #if EV_IDLE_ENABLE |
3247 | void |
4779 | void |
3248 | ev_idle_start (EV_P_ ev_idle *w) |
4780 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3249 | { |
4781 | { |
3250 | if (expect_false (ev_is_active (w))) |
4782 | if (ecb_expect_false (ev_is_active (w))) |
3251 | return; |
4783 | return; |
3252 | |
4784 | |
3253 | pri_adjust (EV_A_ (W)w); |
4785 | pri_adjust (EV_A_ (W)w); |
3254 | |
4786 | |
3255 | EV_FREQUENT_CHECK; |
4787 | EV_FREQUENT_CHECK; |
… | |
… | |
3258 | int active = ++idlecnt [ABSPRI (w)]; |
4790 | int active = ++idlecnt [ABSPRI (w)]; |
3259 | |
4791 | |
3260 | ++idleall; |
4792 | ++idleall; |
3261 | ev_start (EV_A_ (W)w, active); |
4793 | ev_start (EV_A_ (W)w, active); |
3262 | |
4794 | |
3263 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4795 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3264 | idles [ABSPRI (w)][active - 1] = w; |
4796 | idles [ABSPRI (w)][active - 1] = w; |
3265 | } |
4797 | } |
3266 | |
4798 | |
3267 | EV_FREQUENT_CHECK; |
4799 | EV_FREQUENT_CHECK; |
3268 | } |
4800 | } |
3269 | |
4801 | |
3270 | void |
4802 | void |
3271 | ev_idle_stop (EV_P_ ev_idle *w) |
4803 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3272 | { |
4804 | { |
3273 | clear_pending (EV_A_ (W)w); |
4805 | clear_pending (EV_A_ (W)w); |
3274 | if (expect_false (!ev_is_active (w))) |
4806 | if (ecb_expect_false (!ev_is_active (w))) |
3275 | return; |
4807 | return; |
3276 | |
4808 | |
3277 | EV_FREQUENT_CHECK; |
4809 | EV_FREQUENT_CHECK; |
3278 | |
4810 | |
3279 | { |
4811 | { |
… | |
… | |
3288 | |
4820 | |
3289 | EV_FREQUENT_CHECK; |
4821 | EV_FREQUENT_CHECK; |
3290 | } |
4822 | } |
3291 | #endif |
4823 | #endif |
3292 | |
4824 | |
|
|
4825 | #if EV_PREPARE_ENABLE |
3293 | void |
4826 | void |
3294 | ev_prepare_start (EV_P_ ev_prepare *w) |
4827 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3295 | { |
4828 | { |
3296 | if (expect_false (ev_is_active (w))) |
4829 | if (ecb_expect_false (ev_is_active (w))) |
3297 | return; |
4830 | return; |
3298 | |
4831 | |
3299 | EV_FREQUENT_CHECK; |
4832 | EV_FREQUENT_CHECK; |
3300 | |
4833 | |
3301 | ev_start (EV_A_ (W)w, ++preparecnt); |
4834 | ev_start (EV_A_ (W)w, ++preparecnt); |
3302 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4835 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3303 | prepares [preparecnt - 1] = w; |
4836 | prepares [preparecnt - 1] = w; |
3304 | |
4837 | |
3305 | EV_FREQUENT_CHECK; |
4838 | EV_FREQUENT_CHECK; |
3306 | } |
4839 | } |
3307 | |
4840 | |
3308 | void |
4841 | void |
3309 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4842 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3310 | { |
4843 | { |
3311 | clear_pending (EV_A_ (W)w); |
4844 | clear_pending (EV_A_ (W)w); |
3312 | if (expect_false (!ev_is_active (w))) |
4845 | if (ecb_expect_false (!ev_is_active (w))) |
3313 | return; |
4846 | return; |
3314 | |
4847 | |
3315 | EV_FREQUENT_CHECK; |
4848 | EV_FREQUENT_CHECK; |
3316 | |
4849 | |
3317 | { |
4850 | { |
… | |
… | |
3323 | |
4856 | |
3324 | ev_stop (EV_A_ (W)w); |
4857 | ev_stop (EV_A_ (W)w); |
3325 | |
4858 | |
3326 | EV_FREQUENT_CHECK; |
4859 | EV_FREQUENT_CHECK; |
3327 | } |
4860 | } |
|
|
4861 | #endif |
3328 | |
4862 | |
|
|
4863 | #if EV_CHECK_ENABLE |
3329 | void |
4864 | void |
3330 | ev_check_start (EV_P_ ev_check *w) |
4865 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3331 | { |
4866 | { |
3332 | if (expect_false (ev_is_active (w))) |
4867 | if (ecb_expect_false (ev_is_active (w))) |
3333 | return; |
4868 | return; |
3334 | |
4869 | |
3335 | EV_FREQUENT_CHECK; |
4870 | EV_FREQUENT_CHECK; |
3336 | |
4871 | |
3337 | ev_start (EV_A_ (W)w, ++checkcnt); |
4872 | ev_start (EV_A_ (W)w, ++checkcnt); |
3338 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4873 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3339 | checks [checkcnt - 1] = w; |
4874 | checks [checkcnt - 1] = w; |
3340 | |
4875 | |
3341 | EV_FREQUENT_CHECK; |
4876 | EV_FREQUENT_CHECK; |
3342 | } |
4877 | } |
3343 | |
4878 | |
3344 | void |
4879 | void |
3345 | ev_check_stop (EV_P_ ev_check *w) |
4880 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3346 | { |
4881 | { |
3347 | clear_pending (EV_A_ (W)w); |
4882 | clear_pending (EV_A_ (W)w); |
3348 | if (expect_false (!ev_is_active (w))) |
4883 | if (ecb_expect_false (!ev_is_active (w))) |
3349 | return; |
4884 | return; |
3350 | |
4885 | |
3351 | EV_FREQUENT_CHECK; |
4886 | EV_FREQUENT_CHECK; |
3352 | |
4887 | |
3353 | { |
4888 | { |
… | |
… | |
3359 | |
4894 | |
3360 | ev_stop (EV_A_ (W)w); |
4895 | ev_stop (EV_A_ (W)w); |
3361 | |
4896 | |
3362 | EV_FREQUENT_CHECK; |
4897 | EV_FREQUENT_CHECK; |
3363 | } |
4898 | } |
|
|
4899 | #endif |
3364 | |
4900 | |
3365 | #if EV_EMBED_ENABLE |
4901 | #if EV_EMBED_ENABLE |
3366 | void noinline |
4902 | ecb_noinline |
|
|
4903 | void |
3367 | ev_embed_sweep (EV_P_ ev_embed *w) |
4904 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3368 | { |
4905 | { |
3369 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4906 | ev_run (w->other, EVRUN_NOWAIT); |
3370 | } |
4907 | } |
3371 | |
4908 | |
3372 | static void |
4909 | static void |
3373 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4910 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3374 | { |
4911 | { |
3375 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4912 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3376 | |
4913 | |
3377 | if (ev_cb (w)) |
4914 | if (ev_cb (w)) |
3378 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4915 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3379 | else |
4916 | else |
3380 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4917 | ev_run (w->other, EVRUN_NOWAIT); |
3381 | } |
4918 | } |
3382 | |
4919 | |
3383 | static void |
4920 | static void |
3384 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4921 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3385 | { |
4922 | { |
… | |
… | |
3389 | EV_P = w->other; |
4926 | EV_P = w->other; |
3390 | |
4927 | |
3391 | while (fdchangecnt) |
4928 | while (fdchangecnt) |
3392 | { |
4929 | { |
3393 | fd_reify (EV_A); |
4930 | fd_reify (EV_A); |
3394 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4931 | ev_run (EV_A_ EVRUN_NOWAIT); |
3395 | } |
4932 | } |
3396 | } |
4933 | } |
3397 | } |
4934 | } |
3398 | |
4935 | |
3399 | static void |
4936 | static void |
… | |
… | |
3405 | |
4942 | |
3406 | { |
4943 | { |
3407 | EV_P = w->other; |
4944 | EV_P = w->other; |
3408 | |
4945 | |
3409 | ev_loop_fork (EV_A); |
4946 | ev_loop_fork (EV_A); |
3410 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4947 | ev_run (EV_A_ EVRUN_NOWAIT); |
3411 | } |
4948 | } |
3412 | |
4949 | |
3413 | ev_embed_start (EV_A_ w); |
4950 | ev_embed_start (EV_A_ w); |
3414 | } |
4951 | } |
3415 | |
4952 | |
… | |
… | |
3420 | ev_idle_stop (EV_A_ idle); |
4957 | ev_idle_stop (EV_A_ idle); |
3421 | } |
4958 | } |
3422 | #endif |
4959 | #endif |
3423 | |
4960 | |
3424 | void |
4961 | void |
3425 | ev_embed_start (EV_P_ ev_embed *w) |
4962 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3426 | { |
4963 | { |
3427 | if (expect_false (ev_is_active (w))) |
4964 | if (ecb_expect_false (ev_is_active (w))) |
3428 | return; |
4965 | return; |
3429 | |
4966 | |
3430 | { |
4967 | { |
3431 | EV_P = w->other; |
4968 | EV_P = w->other; |
3432 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4969 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
3451 | |
4988 | |
3452 | EV_FREQUENT_CHECK; |
4989 | EV_FREQUENT_CHECK; |
3453 | } |
4990 | } |
3454 | |
4991 | |
3455 | void |
4992 | void |
3456 | ev_embed_stop (EV_P_ ev_embed *w) |
4993 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3457 | { |
4994 | { |
3458 | clear_pending (EV_A_ (W)w); |
4995 | clear_pending (EV_A_ (W)w); |
3459 | if (expect_false (!ev_is_active (w))) |
4996 | if (ecb_expect_false (!ev_is_active (w))) |
3460 | return; |
4997 | return; |
3461 | |
4998 | |
3462 | EV_FREQUENT_CHECK; |
4999 | EV_FREQUENT_CHECK; |
3463 | |
5000 | |
3464 | ev_io_stop (EV_A_ &w->io); |
5001 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
3471 | } |
5008 | } |
3472 | #endif |
5009 | #endif |
3473 | |
5010 | |
3474 | #if EV_FORK_ENABLE |
5011 | #if EV_FORK_ENABLE |
3475 | void |
5012 | void |
3476 | ev_fork_start (EV_P_ ev_fork *w) |
5013 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3477 | { |
5014 | { |
3478 | if (expect_false (ev_is_active (w))) |
5015 | if (ecb_expect_false (ev_is_active (w))) |
3479 | return; |
5016 | return; |
3480 | |
5017 | |
3481 | EV_FREQUENT_CHECK; |
5018 | EV_FREQUENT_CHECK; |
3482 | |
5019 | |
3483 | ev_start (EV_A_ (W)w, ++forkcnt); |
5020 | ev_start (EV_A_ (W)w, ++forkcnt); |
3484 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5021 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3485 | forks [forkcnt - 1] = w; |
5022 | forks [forkcnt - 1] = w; |
3486 | |
5023 | |
3487 | EV_FREQUENT_CHECK; |
5024 | EV_FREQUENT_CHECK; |
3488 | } |
5025 | } |
3489 | |
5026 | |
3490 | void |
5027 | void |
3491 | ev_fork_stop (EV_P_ ev_fork *w) |
5028 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3492 | { |
5029 | { |
3493 | clear_pending (EV_A_ (W)w); |
5030 | clear_pending (EV_A_ (W)w); |
3494 | if (expect_false (!ev_is_active (w))) |
5031 | if (ecb_expect_false (!ev_is_active (w))) |
3495 | return; |
5032 | return; |
3496 | |
5033 | |
3497 | EV_FREQUENT_CHECK; |
5034 | EV_FREQUENT_CHECK; |
3498 | |
5035 | |
3499 | { |
5036 | { |
… | |
… | |
3507 | |
5044 | |
3508 | EV_FREQUENT_CHECK; |
5045 | EV_FREQUENT_CHECK; |
3509 | } |
5046 | } |
3510 | #endif |
5047 | #endif |
3511 | |
5048 | |
|
|
5049 | #if EV_CLEANUP_ENABLE |
|
|
5050 | void |
|
|
5051 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5052 | { |
|
|
5053 | if (ecb_expect_false (ev_is_active (w))) |
|
|
5054 | return; |
|
|
5055 | |
|
|
5056 | EV_FREQUENT_CHECK; |
|
|
5057 | |
|
|
5058 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
5059 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
|
|
5060 | cleanups [cleanupcnt - 1] = w; |
|
|
5061 | |
|
|
5062 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
5063 | ev_unref (EV_A); |
|
|
5064 | EV_FREQUENT_CHECK; |
|
|
5065 | } |
|
|
5066 | |
|
|
5067 | void |
|
|
5068 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5069 | { |
|
|
5070 | clear_pending (EV_A_ (W)w); |
|
|
5071 | if (ecb_expect_false (!ev_is_active (w))) |
|
|
5072 | return; |
|
|
5073 | |
|
|
5074 | EV_FREQUENT_CHECK; |
|
|
5075 | ev_ref (EV_A); |
|
|
5076 | |
|
|
5077 | { |
|
|
5078 | int active = ev_active (w); |
|
|
5079 | |
|
|
5080 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
5081 | ev_active (cleanups [active - 1]) = active; |
|
|
5082 | } |
|
|
5083 | |
|
|
5084 | ev_stop (EV_A_ (W)w); |
|
|
5085 | |
|
|
5086 | EV_FREQUENT_CHECK; |
|
|
5087 | } |
|
|
5088 | #endif |
|
|
5089 | |
3512 | #if EV_ASYNC_ENABLE |
5090 | #if EV_ASYNC_ENABLE |
3513 | void |
5091 | void |
3514 | ev_async_start (EV_P_ ev_async *w) |
5092 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3515 | { |
5093 | { |
3516 | if (expect_false (ev_is_active (w))) |
5094 | if (ecb_expect_false (ev_is_active (w))) |
3517 | return; |
5095 | return; |
3518 | |
5096 | |
|
|
5097 | w->sent = 0; |
|
|
5098 | |
3519 | evpipe_init (EV_A); |
5099 | evpipe_init (EV_A); |
3520 | |
5100 | |
3521 | EV_FREQUENT_CHECK; |
5101 | EV_FREQUENT_CHECK; |
3522 | |
5102 | |
3523 | ev_start (EV_A_ (W)w, ++asynccnt); |
5103 | ev_start (EV_A_ (W)w, ++asynccnt); |
3524 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5104 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3525 | asyncs [asynccnt - 1] = w; |
5105 | asyncs [asynccnt - 1] = w; |
3526 | |
5106 | |
3527 | EV_FREQUENT_CHECK; |
5107 | EV_FREQUENT_CHECK; |
3528 | } |
5108 | } |
3529 | |
5109 | |
3530 | void |
5110 | void |
3531 | ev_async_stop (EV_P_ ev_async *w) |
5111 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3532 | { |
5112 | { |
3533 | clear_pending (EV_A_ (W)w); |
5113 | clear_pending (EV_A_ (W)w); |
3534 | if (expect_false (!ev_is_active (w))) |
5114 | if (ecb_expect_false (!ev_is_active (w))) |
3535 | return; |
5115 | return; |
3536 | |
5116 | |
3537 | EV_FREQUENT_CHECK; |
5117 | EV_FREQUENT_CHECK; |
3538 | |
5118 | |
3539 | { |
5119 | { |
… | |
… | |
3547 | |
5127 | |
3548 | EV_FREQUENT_CHECK; |
5128 | EV_FREQUENT_CHECK; |
3549 | } |
5129 | } |
3550 | |
5130 | |
3551 | void |
5131 | void |
3552 | ev_async_send (EV_P_ ev_async *w) |
5132 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3553 | { |
5133 | { |
3554 | w->sent = 1; |
5134 | w->sent = 1; |
3555 | evpipe_write (EV_A_ &async_pending); |
5135 | evpipe_write (EV_A_ &async_pending); |
3556 | } |
5136 | } |
3557 | #endif |
5137 | #endif |
… | |
… | |
3594 | |
5174 | |
3595 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5175 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3596 | } |
5176 | } |
3597 | |
5177 | |
3598 | void |
5178 | void |
3599 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5179 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3600 | { |
5180 | { |
3601 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5181 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3602 | |
|
|
3603 | if (expect_false (!once)) |
|
|
3604 | { |
|
|
3605 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
3606 | return; |
|
|
3607 | } |
|
|
3608 | |
5182 | |
3609 | once->cb = cb; |
5183 | once->cb = cb; |
3610 | once->arg = arg; |
5184 | once->arg = arg; |
3611 | |
5185 | |
3612 | ev_init (&once->io, once_cb_io); |
5186 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3625 | } |
5199 | } |
3626 | |
5200 | |
3627 | /*****************************************************************************/ |
5201 | /*****************************************************************************/ |
3628 | |
5202 | |
3629 | #if EV_WALK_ENABLE |
5203 | #if EV_WALK_ENABLE |
|
|
5204 | ecb_cold |
3630 | void |
5205 | void |
3631 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5206 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3632 | { |
5207 | { |
3633 | int i, j; |
5208 | int i, j; |
3634 | ev_watcher_list *wl, *wn; |
5209 | ev_watcher_list *wl, *wn; |
3635 | |
5210 | |
3636 | if (types & (EV_IO | EV_EMBED)) |
5211 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3679 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5254 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3680 | #endif |
5255 | #endif |
3681 | |
5256 | |
3682 | #if EV_IDLE_ENABLE |
5257 | #if EV_IDLE_ENABLE |
3683 | if (types & EV_IDLE) |
5258 | if (types & EV_IDLE) |
3684 | for (j = NUMPRI; i--; ) |
5259 | for (j = NUMPRI; j--; ) |
3685 | for (i = idlecnt [j]; i--; ) |
5260 | for (i = idlecnt [j]; i--; ) |
3686 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5261 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3687 | #endif |
5262 | #endif |
3688 | |
5263 | |
3689 | #if EV_FORK_ENABLE |
5264 | #if EV_FORK_ENABLE |
… | |
… | |
3697 | if (types & EV_ASYNC) |
5272 | if (types & EV_ASYNC) |
3698 | for (i = asynccnt; i--; ) |
5273 | for (i = asynccnt; i--; ) |
3699 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
5274 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3700 | #endif |
5275 | #endif |
3701 | |
5276 | |
|
|
5277 | #if EV_PREPARE_ENABLE |
3702 | if (types & EV_PREPARE) |
5278 | if (types & EV_PREPARE) |
3703 | for (i = preparecnt; i--; ) |
5279 | for (i = preparecnt; i--; ) |
3704 | #if EV_EMBED_ENABLE |
5280 | # if EV_EMBED_ENABLE |
3705 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
5281 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3706 | #endif |
5282 | # endif |
3707 | cb (EV_A_ EV_PREPARE, prepares [i]); |
5283 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
5284 | #endif |
3708 | |
5285 | |
|
|
5286 | #if EV_CHECK_ENABLE |
3709 | if (types & EV_CHECK) |
5287 | if (types & EV_CHECK) |
3710 | for (i = checkcnt; i--; ) |
5288 | for (i = checkcnt; i--; ) |
3711 | cb (EV_A_ EV_CHECK, checks [i]); |
5289 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
5290 | #endif |
3712 | |
5291 | |
|
|
5292 | #if EV_SIGNAL_ENABLE |
3713 | if (types & EV_SIGNAL) |
5293 | if (types & EV_SIGNAL) |
3714 | for (i = 0; i < EV_NSIG - 1; ++i) |
5294 | for (i = 0; i < EV_NSIG - 1; ++i) |
3715 | for (wl = signals [i].head; wl; ) |
5295 | for (wl = signals [i].head; wl; ) |
3716 | { |
5296 | { |
3717 | wn = wl->next; |
5297 | wn = wl->next; |
3718 | cb (EV_A_ EV_SIGNAL, wl); |
5298 | cb (EV_A_ EV_SIGNAL, wl); |
3719 | wl = wn; |
5299 | wl = wn; |
3720 | } |
5300 | } |
|
|
5301 | #endif |
3721 | |
5302 | |
|
|
5303 | #if EV_CHILD_ENABLE |
3722 | if (types & EV_CHILD) |
5304 | if (types & EV_CHILD) |
3723 | for (i = EV_PID_HASHSIZE; i--; ) |
5305 | for (i = (EV_PID_HASHSIZE); i--; ) |
3724 | for (wl = childs [i]; wl; ) |
5306 | for (wl = childs [i]; wl; ) |
3725 | { |
5307 | { |
3726 | wn = wl->next; |
5308 | wn = wl->next; |
3727 | cb (EV_A_ EV_CHILD, wl); |
5309 | cb (EV_A_ EV_CHILD, wl); |
3728 | wl = wn; |
5310 | wl = wn; |
3729 | } |
5311 | } |
|
|
5312 | #endif |
3730 | /* EV_STAT 0x00001000 /* stat data changed */ |
5313 | /* EV_STAT 0x00001000 /* stat data changed */ |
3731 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
5314 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3732 | } |
5315 | } |
3733 | #endif |
5316 | #endif |
3734 | |
5317 | |
3735 | #if EV_MULTIPLICITY |
5318 | #if EV_MULTIPLICITY |
3736 | #include "ev_wrap.h" |
5319 | #include "ev_wrap.h" |
3737 | #endif |
5320 | #endif |
3738 | |
5321 | |
3739 | #ifdef __cplusplus |
|
|
3740 | } |
|
|
3741 | #endif |
|
|
3742 | |
|
|