1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 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 | * |
… | |
… | |
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 |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
79 | # endif |
75 | # endif |
80 | # endif |
76 | # endif |
81 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
81 | # endif |
85 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
|
|
85 | # endif |
|
|
86 | |
|
|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
|
|
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
88 | # endif |
94 | # endif |
89 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
99 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
103 | # endif |
105 | |
104 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
109 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
108 | # endif |
|
|
109 | # else |
|
|
110 | # undef EV_USE_EPOLL |
|
|
111 | # define EV_USE_EPOLL 0 |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
|
|
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
115 | # ifndef EV_USE_KQUEUE |
117 | # else |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
117 | # endif |
|
|
118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
120 | # endif |
121 | # endif |
121 | |
122 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
125 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
126 | # endif |
|
|
127 | # else |
|
|
128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
128 | # endif |
130 | # endif |
129 | |
131 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
135 | # endif |
|
|
136 | # else |
|
|
137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
136 | # endif |
139 | # endif |
137 | |
140 | |
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
140 | # define EV_USE_SIGNALFD 1 |
142 | # ifndef EV_USE_SIGNALFD |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # endif |
144 | # endif |
|
|
145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
148 | # endif |
145 | |
149 | |
|
|
150 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
151 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
153 | # endif |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
152 | # endif |
157 | # endif |
153 | |
158 | |
154 | #endif |
159 | #endif |
155 | |
160 | |
156 | #include <math.h> |
161 | #include <math.h> |
… | |
… | |
163 | |
168 | |
164 | #include <assert.h> |
169 | #include <assert.h> |
165 | #include <errno.h> |
170 | #include <errno.h> |
166 | #include <sys/types.h> |
171 | #include <sys/types.h> |
167 | #include <time.h> |
172 | #include <time.h> |
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|
173 | #include <limits.h> |
168 | |
174 | |
169 | #include <signal.h> |
175 | #include <signal.h> |
170 | |
176 | |
171 | #ifdef EV_H |
177 | #ifdef EV_H |
172 | # include EV_H |
178 | # include EV_H |
173 | #else |
179 | #else |
174 | # include "ev.h" |
180 | # include "ev.h" |
175 | #endif |
181 | #endif |
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|
182 | |
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|
183 | EV_CPP(extern "C" {) |
176 | |
184 | |
177 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
178 | # include <sys/time.h> |
186 | # include <sys/time.h> |
179 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
180 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
183 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
184 | # include <windows.h> |
192 | # include <windows.h> |
185 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
188 | #endif |
197 | #endif |
|
|
198 | |
|
|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
|
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201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
|
203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
189 | |
206 | |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
191 | |
208 | |
192 | /* try to deduce the maximum number of signals on this platform */ |
209 | /* try to deduce the maximum number of signals on this platform */ |
193 | #if defined (EV_NSIG) |
210 | #if defined (EV_NSIG) |
… | |
… | |
205 | #elif defined (MAXSIG) |
222 | #elif defined (MAXSIG) |
206 | # define EV_NSIG (MAXSIG+1) |
223 | # define EV_NSIG (MAXSIG+1) |
207 | #elif defined (MAX_SIG) |
224 | #elif defined (MAX_SIG) |
208 | # define EV_NSIG (MAX_SIG+1) |
225 | # define EV_NSIG (MAX_SIG+1) |
209 | #elif defined (SIGARRAYSIZE) |
226 | #elif defined (SIGARRAYSIZE) |
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
211 | #elif defined (_sys_nsig) |
228 | #elif defined (_sys_nsig) |
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
213 | #else |
230 | #else |
214 | # error "unable to find value for NSIG, please report" |
231 | # error "unable to find value for NSIG, please report" |
215 | /* to make it compile regardless, just remove the above line */ |
232 | /* to make it compile regardless, just remove the above line, */ |
|
|
233 | /* but consider reporting it, too! :) */ |
216 | # define EV_NSIG 65 |
234 | # define EV_NSIG 65 |
217 | #endif |
235 | #endif |
218 | |
236 | |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
220 | # if __linux && __GLIBC__ >= 2 |
238 | # if __linux && __GLIBC__ >= 2 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
222 | # else |
240 | # else |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
224 | # endif |
242 | # endif |
225 | #endif |
243 | #endif |
226 | |
244 | |
227 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
228 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
229 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
230 | # else |
248 | # else |
231 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
232 | # endif |
250 | # endif |
233 | #endif |
251 | #endif |
234 | |
252 | |
… | |
… | |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
237 | #endif |
255 | #endif |
238 | |
256 | |
239 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
240 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
241 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
242 | # else |
260 | # else |
243 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
244 | # endif |
262 | # endif |
245 | #endif |
263 | #endif |
246 | |
264 | |
247 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
248 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
249 | #endif |
267 | #endif |
250 | |
268 | |
251 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
252 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
253 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
254 | # else |
272 | # else |
255 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
256 | # endif |
274 | # endif |
257 | #endif |
275 | #endif |
258 | |
276 | |
259 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
260 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
261 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
262 | # else |
280 | # else |
263 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
264 | # endif |
282 | # endif |
265 | #endif |
283 | #endif |
266 | |
284 | |
… | |
… | |
272 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
273 | #endif |
291 | #endif |
274 | |
292 | |
275 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
276 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
277 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
278 | # else |
296 | # else |
279 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
280 | # endif |
298 | # endif |
281 | #endif |
299 | #endif |
282 | |
300 | |
283 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
284 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
285 | # define EV_PID_HASHSIZE 1 |
|
|
286 | # else |
|
|
287 | # define EV_PID_HASHSIZE 16 |
|
|
288 | # endif |
|
|
289 | #endif |
303 | #endif |
290 | |
304 | |
291 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
292 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
293 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
294 | # else |
|
|
295 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
296 | # endif |
|
|
297 | #endif |
307 | #endif |
298 | |
308 | |
299 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
300 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
301 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
302 | # else |
312 | # else |
303 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
304 | # endif |
314 | # endif |
305 | #endif |
315 | #endif |
306 | |
316 | |
307 | #ifndef EV_USE_SIGNALFD |
317 | #ifndef EV_USE_SIGNALFD |
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
309 | # define EV_USE_SIGNALFD 1 |
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
310 | # else |
320 | # else |
311 | # define EV_USE_SIGNALFD 0 |
321 | # define EV_USE_SIGNALFD 0 |
312 | # endif |
322 | # endif |
313 | #endif |
323 | #endif |
314 | |
324 | |
… | |
… | |
317 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
318 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
319 | #endif |
329 | #endif |
320 | |
330 | |
321 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
322 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
323 | #endif |
333 | #endif |
324 | |
334 | |
325 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
326 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
327 | #endif |
337 | #endif |
328 | |
338 | |
329 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
331 | #endif |
341 | #endif |
332 | |
342 | |
333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
334 | /* which makes programs even slower. might work on other unices, too. */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
335 | #if EV_USE_CLOCK_SYSCALL |
345 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
344 | # endif |
354 | # endif |
345 | #endif |
355 | #endif |
346 | |
356 | |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
348 | |
358 | |
|
|
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
|
|
364 | |
349 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
350 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
351 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
352 | #endif |
368 | #endif |
353 | |
369 | |
… | |
… | |
366 | # include <sys/select.h> |
382 | # include <sys/select.h> |
367 | # endif |
383 | # endif |
368 | #endif |
384 | #endif |
369 | |
385 | |
370 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
371 | # include <sys/utsname.h> |
|
|
372 | # include <sys/statfs.h> |
387 | # include <sys/statfs.h> |
373 | # include <sys/inotify.h> |
388 | # include <sys/inotify.h> |
374 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
375 | # ifndef IN_DONT_FOLLOW |
390 | # ifndef IN_DONT_FOLLOW |
376 | # undef EV_USE_INOTIFY |
391 | # undef EV_USE_INOTIFY |
… | |
… | |
393 | # define EFD_CLOEXEC O_CLOEXEC |
408 | # define EFD_CLOEXEC O_CLOEXEC |
394 | # else |
409 | # else |
395 | # define EFD_CLOEXEC 02000000 |
410 | # define EFD_CLOEXEC 02000000 |
396 | # endif |
411 | # endif |
397 | # endif |
412 | # endif |
398 | # ifdef __cplusplus |
|
|
399 | extern "C" { |
|
|
400 | # endif |
|
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401 | int eventfd (unsigned int initval, int flags); |
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
402 | # ifdef __cplusplus |
|
|
403 | } |
|
|
404 | # endif |
|
|
405 | #endif |
414 | #endif |
406 | |
415 | |
407 | #if EV_USE_SIGNALFD |
416 | #if EV_USE_SIGNALFD |
408 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
409 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
415 | # define SFD_CLOEXEC O_CLOEXEC |
424 | # define SFD_CLOEXEC O_CLOEXEC |
416 | # else |
425 | # else |
417 | # define SFD_CLOEXEC 02000000 |
426 | # define SFD_CLOEXEC 02000000 |
418 | # endif |
427 | # endif |
419 | # endif |
428 | # endif |
420 | # ifdef __cplusplus |
|
|
421 | extern "C" { |
|
|
422 | # endif |
|
|
423 | int signalfd (int fd, const sigset_t *mask, int flags); |
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
424 | |
430 | |
425 | struct signalfd_siginfo |
431 | struct signalfd_siginfo |
426 | { |
432 | { |
427 | uint32_t ssi_signo; |
433 | uint32_t ssi_signo; |
428 | char pad[128 - sizeof (uint32_t)]; |
434 | char pad[128 - sizeof (uint32_t)]; |
429 | }; |
435 | }; |
430 | # ifdef __cplusplus |
|
|
431 | } |
|
|
432 | # endif |
436 | #endif |
433 | #endif |
|
|
434 | |
|
|
435 | |
437 | |
436 | /**/ |
438 | /**/ |
437 | |
439 | |
438 | #if EV_VERIFY >= 3 |
440 | #if EV_VERIFY >= 3 |
439 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
440 | #else |
442 | #else |
441 | # define EV_FREQUENT_CHECK do { } while (0) |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
442 | #endif |
444 | #endif |
443 | |
445 | |
444 | /* |
446 | /* |
… | |
… | |
452 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
453 | |
455 | |
454 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
455 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
456 | |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
461 | |
457 | #if __GNUC__ >= 4 |
462 | #if __GNUC__ >= 4 |
458 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
459 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
460 | #else |
465 | #else |
461 | # define expect(expr,value) (expr) |
466 | # define expect(expr,value) (expr) |
… | |
… | |
467 | |
472 | |
468 | #define expect_false(expr) expect ((expr) != 0, 0) |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_true(expr) expect ((expr) != 0, 1) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define inline_size static inline |
475 | #define inline_size static inline |
471 | |
476 | |
472 | #if EV_MINIMAL |
477 | #if EV_FEATURE_CODE |
|
|
478 | # define inline_speed static inline |
|
|
479 | #else |
473 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
474 | #else |
|
|
475 | # define inline_speed static inline |
|
|
476 | #endif |
481 | #endif |
477 | |
482 | |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | |
484 | |
480 | #if EV_MINPRI == EV_MAXPRI |
485 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
493 | #define ev_active(w) ((W)(w))->active |
498 | #define ev_active(w) ((W)(w))->active |
494 | #define ev_at(w) ((WT)(w))->at |
499 | #define ev_at(w) ((WT)(w))->at |
495 | |
500 | |
496 | #if EV_USE_REALTIME |
501 | #if EV_USE_REALTIME |
497 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
498 | /* giving it a reasonably high chance of working on typical architetcures */ |
503 | /* giving it a reasonably high chance of working on typical architectures */ |
499 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
500 | #endif |
505 | #endif |
501 | |
506 | |
502 | #if EV_USE_MONOTONIC |
507 | #if EV_USE_MONOTONIC |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
516 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
517 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
518 | #endif |
523 | #endif |
519 | |
524 | |
520 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
|
|
526 | |
|
|
527 | #ifdef __linux |
|
|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
|
|
530 | |
|
|
531 | static unsigned int noinline |
|
|
532 | ev_linux_version (void) |
|
|
533 | { |
|
|
534 | #ifdef __linux |
|
|
535 | unsigned int v = 0; |
|
|
536 | struct utsname buf; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
|
|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
|
|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
|
|
554 | break; |
|
|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | v = (v << 8) | c; |
|
|
559 | } |
|
|
560 | |
|
|
561 | return v; |
|
|
562 | #else |
|
|
563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
|
|
569 | #if EV_AVOID_STDIO |
|
|
570 | static void noinline |
|
|
571 | ev_printerr (const char *msg) |
|
|
572 | { |
|
|
573 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
574 | } |
|
|
575 | #endif |
521 | |
576 | |
522 | static void (*syserr_cb)(const char *msg); |
577 | static void (*syserr_cb)(const char *msg); |
523 | |
578 | |
524 | void |
579 | void |
525 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
535 | |
590 | |
536 | if (syserr_cb) |
591 | if (syserr_cb) |
537 | syserr_cb (msg); |
592 | syserr_cb (msg); |
538 | else |
593 | else |
539 | { |
594 | { |
|
|
595 | #if EV_AVOID_STDIO |
|
|
596 | const char *err = strerror (errno); |
|
|
597 | |
|
|
598 | ev_printerr (msg); |
|
|
599 | ev_printerr (": "); |
|
|
600 | ev_printerr (err); |
|
|
601 | ev_printerr ("\n"); |
|
|
602 | #else |
540 | perror (msg); |
603 | perror (msg); |
|
|
604 | #endif |
541 | abort (); |
605 | abort (); |
542 | } |
606 | } |
543 | } |
607 | } |
544 | |
608 | |
545 | static void * |
609 | static void * |
546 | ev_realloc_emul (void *ptr, long size) |
610 | ev_realloc_emul (void *ptr, long size) |
547 | { |
611 | { |
|
|
612 | #if __GLIBC__ |
|
|
613 | return realloc (ptr, size); |
|
|
614 | #else |
548 | /* some systems, notably openbsd and darwin, fail to properly |
615 | /* some systems, notably openbsd and darwin, fail to properly |
549 | * implement realloc (x, 0) (as required by both ansi c-98 and |
616 | * implement realloc (x, 0) (as required by both ansi c-89 and |
550 | * the single unix specification, so work around them here. |
617 | * the single unix specification, so work around them here. |
551 | */ |
618 | */ |
552 | |
619 | |
553 | if (size) |
620 | if (size) |
554 | return realloc (ptr, size); |
621 | return realloc (ptr, size); |
555 | |
622 | |
556 | free (ptr); |
623 | free (ptr); |
557 | return 0; |
624 | return 0; |
|
|
625 | #endif |
558 | } |
626 | } |
559 | |
627 | |
560 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
628 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
561 | |
629 | |
562 | void |
630 | void |
… | |
… | |
570 | { |
638 | { |
571 | ptr = alloc (ptr, size); |
639 | ptr = alloc (ptr, size); |
572 | |
640 | |
573 | if (!ptr && size) |
641 | if (!ptr && size) |
574 | { |
642 | { |
|
|
643 | #if EV_AVOID_STDIO |
|
|
644 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
645 | #else |
575 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
646 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
647 | #endif |
576 | abort (); |
648 | abort (); |
577 | } |
649 | } |
578 | |
650 | |
579 | return ptr; |
651 | return ptr; |
580 | } |
652 | } |
… | |
… | |
596 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
668 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
597 | unsigned char unused; |
669 | unsigned char unused; |
598 | #if EV_USE_EPOLL |
670 | #if EV_USE_EPOLL |
599 | unsigned int egen; /* generation counter to counter epoll bugs */ |
671 | unsigned int egen; /* generation counter to counter epoll bugs */ |
600 | #endif |
672 | #endif |
601 | #if EV_SELECT_IS_WINSOCKET |
673 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
602 | SOCKET handle; |
674 | SOCKET handle; |
|
|
675 | #endif |
|
|
676 | #if EV_USE_IOCP |
|
|
677 | OVERLAPPED or, ow; |
603 | #endif |
678 | #endif |
604 | } ANFD; |
679 | } ANFD; |
605 | |
680 | |
606 | /* stores the pending event set for a given watcher */ |
681 | /* stores the pending event set for a given watcher */ |
607 | typedef struct |
682 | typedef struct |
… | |
… | |
662 | |
737 | |
663 | static int ev_default_loop_ptr; |
738 | static int ev_default_loop_ptr; |
664 | |
739 | |
665 | #endif |
740 | #endif |
666 | |
741 | |
667 | #if EV_MINIMAL < 2 |
742 | #if EV_FEATURE_API |
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
743 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
669 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
744 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
745 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
671 | #else |
746 | #else |
672 | # define EV_RELEASE_CB (void)0 |
747 | # define EV_RELEASE_CB (void)0 |
673 | # define EV_ACQUIRE_CB (void)0 |
748 | # define EV_ACQUIRE_CB (void)0 |
674 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
749 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
675 | #endif |
750 | #endif |
676 | |
751 | |
677 | #define EVUNLOOP_RECURSE 0x80 |
752 | #define EVBREAK_RECURSE 0x80 |
678 | |
753 | |
679 | /*****************************************************************************/ |
754 | /*****************************************************************************/ |
680 | |
755 | |
681 | #ifndef EV_HAVE_EV_TIME |
756 | #ifndef EV_HAVE_EV_TIME |
682 | ev_tstamp |
757 | ev_tstamp |
… | |
… | |
726 | if (delay > 0.) |
801 | if (delay > 0.) |
727 | { |
802 | { |
728 | #if EV_USE_NANOSLEEP |
803 | #if EV_USE_NANOSLEEP |
729 | struct timespec ts; |
804 | struct timespec ts; |
730 | |
805 | |
731 | ts.tv_sec = (time_t)delay; |
806 | EV_TS_SET (ts, delay); |
732 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
733 | |
|
|
734 | nanosleep (&ts, 0); |
807 | nanosleep (&ts, 0); |
735 | #elif defined(_WIN32) |
808 | #elif defined(_WIN32) |
736 | Sleep ((unsigned long)(delay * 1e3)); |
809 | Sleep ((unsigned long)(delay * 1e3)); |
737 | #else |
810 | #else |
738 | struct timeval tv; |
811 | struct timeval tv; |
739 | |
812 | |
740 | tv.tv_sec = (time_t)delay; |
|
|
741 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
742 | |
|
|
743 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
813 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
744 | /* something not guaranteed by newer posix versions, but guaranteed */ |
814 | /* something not guaranteed by newer posix versions, but guaranteed */ |
745 | /* by older ones */ |
815 | /* by older ones */ |
|
|
816 | EV_TV_SET (tv, delay); |
746 | select (0, 0, 0, 0, &tv); |
817 | select (0, 0, 0, 0, &tv); |
747 | #endif |
818 | #endif |
748 | } |
819 | } |
749 | } |
820 | } |
750 | |
821 | |
751 | /*****************************************************************************/ |
822 | /*****************************************************************************/ |
752 | |
823 | |
753 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
824 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
754 | |
825 | |
755 | /* find a suitable new size for the given array, */ |
826 | /* find a suitable new size for the given array, */ |
756 | /* hopefully by rounding to a ncie-to-malloc size */ |
827 | /* hopefully by rounding to a nice-to-malloc size */ |
757 | inline_size int |
828 | inline_size int |
758 | array_nextsize (int elem, int cur, int cnt) |
829 | array_nextsize (int elem, int cur, int cnt) |
759 | { |
830 | { |
760 | int ncur = cur + 1; |
831 | int ncur = cur + 1; |
761 | |
832 | |
… | |
… | |
857 | } |
928 | } |
858 | |
929 | |
859 | /*****************************************************************************/ |
930 | /*****************************************************************************/ |
860 | |
931 | |
861 | inline_speed void |
932 | inline_speed void |
862 | fd_event_nc (EV_P_ int fd, int revents) |
933 | fd_event_nocheck (EV_P_ int fd, int revents) |
863 | { |
934 | { |
864 | ANFD *anfd = anfds + fd; |
935 | ANFD *anfd = anfds + fd; |
865 | ev_io *w; |
936 | ev_io *w; |
866 | |
937 | |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
938 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
879 | fd_event (EV_P_ int fd, int revents) |
950 | fd_event (EV_P_ int fd, int revents) |
880 | { |
951 | { |
881 | ANFD *anfd = anfds + fd; |
952 | ANFD *anfd = anfds + fd; |
882 | |
953 | |
883 | if (expect_true (!anfd->reify)) |
954 | if (expect_true (!anfd->reify)) |
884 | fd_event_nc (EV_A_ fd, revents); |
955 | fd_event_nocheck (EV_A_ fd, revents); |
885 | } |
956 | } |
886 | |
957 | |
887 | void |
958 | void |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
959 | ev_feed_fd_event (EV_P_ int fd, int revents) |
889 | { |
960 | { |
890 | if (fd >= 0 && fd < anfdmax) |
961 | if (fd >= 0 && fd < anfdmax) |
891 | fd_event_nc (EV_A_ fd, revents); |
962 | fd_event_nocheck (EV_A_ fd, revents); |
892 | } |
963 | } |
893 | |
964 | |
894 | /* make sure the external fd watch events are in-sync */ |
965 | /* make sure the external fd watch events are in-sync */ |
895 | /* with the kernel/libev internal state */ |
966 | /* with the kernel/libev internal state */ |
896 | inline_size void |
967 | inline_size void |
… | |
… | |
902 | { |
973 | { |
903 | int fd = fdchanges [i]; |
974 | int fd = fdchanges [i]; |
904 | ANFD *anfd = anfds + fd; |
975 | ANFD *anfd = anfds + fd; |
905 | ev_io *w; |
976 | ev_io *w; |
906 | |
977 | |
907 | unsigned char events = 0; |
978 | unsigned char o_events = anfd->events; |
|
|
979 | unsigned char o_reify = anfd->reify; |
908 | |
980 | |
909 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
981 | anfd->reify = 0; |
910 | events |= (unsigned char)w->events; |
|
|
911 | |
982 | |
912 | #if EV_SELECT_IS_WINSOCKET |
983 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
913 | if (events) |
984 | if (o_reify & EV__IOFDSET) |
914 | { |
985 | { |
915 | unsigned long arg; |
986 | unsigned long arg; |
916 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
987 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
917 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
988 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
989 | printf ("oi %d %x\n", fd, anfd->handle);//D |
918 | } |
990 | } |
919 | #endif |
991 | #endif |
920 | |
992 | |
|
|
993 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
921 | { |
994 | { |
922 | unsigned char o_events = anfd->events; |
|
|
923 | unsigned char o_reify = anfd->reify; |
|
|
924 | |
|
|
925 | anfd->reify = 0; |
|
|
926 | anfd->events = events; |
995 | anfd->events = 0; |
927 | |
996 | |
928 | if (o_events != events || o_reify & EV__IOFDSET) |
997 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
998 | anfd->events |= (unsigned char)w->events; |
|
|
999 | |
|
|
1000 | if (o_events != anfd->events) |
|
|
1001 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | if (o_reify & EV__IOFDSET) |
929 | backend_modify (EV_A_ fd, o_events, events); |
1005 | backend_modify (EV_A_ fd, o_events, anfd->events); |
930 | } |
|
|
931 | } |
1006 | } |
932 | |
1007 | |
933 | fdchangecnt = 0; |
1008 | fdchangecnt = 0; |
934 | } |
1009 | } |
935 | |
1010 | |
… | |
… | |
959 | ev_io_stop (EV_A_ w); |
1034 | ev_io_stop (EV_A_ w); |
960 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1035 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
961 | } |
1036 | } |
962 | } |
1037 | } |
963 | |
1038 | |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
1039 | /* check whether the given fd is actually valid, for error recovery */ |
965 | inline_size int |
1040 | inline_size int |
966 | fd_valid (int fd) |
1041 | fd_valid (int fd) |
967 | { |
1042 | { |
968 | #ifdef _WIN32 |
1043 | #ifdef _WIN32 |
969 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1044 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
… | |
… | |
1011 | anfds [fd].emask = 0; |
1086 | anfds [fd].emask = 0; |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1087 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1013 | } |
1088 | } |
1014 | } |
1089 | } |
1015 | |
1090 | |
|
|
1091 | /* used to prepare libev internal fd's */ |
|
|
1092 | /* this is not fork-safe */ |
|
|
1093 | inline_speed void |
|
|
1094 | fd_intern (int fd) |
|
|
1095 | { |
|
|
1096 | #ifdef _WIN32 |
|
|
1097 | unsigned long arg = 1; |
|
|
1098 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1099 | #else |
|
|
1100 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1101 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1102 | #endif |
|
|
1103 | } |
|
|
1104 | |
1016 | /*****************************************************************************/ |
1105 | /*****************************************************************************/ |
1017 | |
1106 | |
1018 | /* |
1107 | /* |
1019 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1108 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1020 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1109 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1021 | * the branching factor of the d-tree. |
1110 | * the branching factor of the d-tree. |
1022 | */ |
1111 | */ |
1023 | |
1112 | |
1024 | /* |
1113 | /* |
… | |
… | |
1172 | |
1261 | |
1173 | static ANSIG signals [EV_NSIG - 1]; |
1262 | static ANSIG signals [EV_NSIG - 1]; |
1174 | |
1263 | |
1175 | /*****************************************************************************/ |
1264 | /*****************************************************************************/ |
1176 | |
1265 | |
1177 | /* used to prepare libev internal fd's */ |
1266 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1178 | /* this is not fork-safe */ |
|
|
1179 | inline_speed void |
|
|
1180 | fd_intern (int fd) |
|
|
1181 | { |
|
|
1182 | #ifdef _WIN32 |
|
|
1183 | unsigned long arg = 1; |
|
|
1184 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1185 | #else |
|
|
1186 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1187 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1188 | #endif |
|
|
1189 | } |
|
|
1190 | |
1267 | |
1191 | static void noinline |
1268 | static void noinline |
1192 | evpipe_init (EV_P) |
1269 | evpipe_init (EV_P) |
1193 | { |
1270 | { |
1194 | if (!ev_is_active (&pipe_w)) |
1271 | if (!ev_is_active (&pipe_w)) |
1195 | { |
1272 | { |
1196 | #if EV_USE_EVENTFD |
1273 | # if EV_USE_EVENTFD |
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1274 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1198 | if (evfd < 0 && errno == EINVAL) |
1275 | if (evfd < 0 && errno == EINVAL) |
1199 | evfd = eventfd (0, 0); |
1276 | evfd = eventfd (0, 0); |
1200 | |
1277 | |
1201 | if (evfd >= 0) |
1278 | if (evfd >= 0) |
… | |
… | |
1203 | evpipe [0] = -1; |
1280 | evpipe [0] = -1; |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1281 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
1282 | ev_io_set (&pipe_w, evfd, EV_READ); |
1206 | } |
1283 | } |
1207 | else |
1284 | else |
1208 | #endif |
1285 | # endif |
1209 | { |
1286 | { |
1210 | while (pipe (evpipe)) |
1287 | while (pipe (evpipe)) |
1211 | ev_syserr ("(libev) error creating signal/async pipe"); |
1288 | ev_syserr ("(libev) error creating signal/async pipe"); |
1212 | |
1289 | |
1213 | fd_intern (evpipe [0]); |
1290 | fd_intern (evpipe [0]); |
… | |
… | |
1224 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1301 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1225 | { |
1302 | { |
1226 | if (!*flag) |
1303 | if (!*flag) |
1227 | { |
1304 | { |
1228 | int old_errno = errno; /* save errno because write might clobber it */ |
1305 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1306 | char dummy; |
1229 | |
1307 | |
1230 | *flag = 1; |
1308 | *flag = 1; |
1231 | |
1309 | |
1232 | #if EV_USE_EVENTFD |
1310 | #if EV_USE_EVENTFD |
1233 | if (evfd >= 0) |
1311 | if (evfd >= 0) |
… | |
… | |
1235 | uint64_t counter = 1; |
1313 | uint64_t counter = 1; |
1236 | write (evfd, &counter, sizeof (uint64_t)); |
1314 | write (evfd, &counter, sizeof (uint64_t)); |
1237 | } |
1315 | } |
1238 | else |
1316 | else |
1239 | #endif |
1317 | #endif |
|
|
1318 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1319 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1320 | /* so when you think this write should be a send instead, please find out */ |
|
|
1321 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1322 | /* tell me. thank you. */ |
1240 | write (evpipe [1], &old_errno, 1); |
1323 | write (evpipe [1], &dummy, 1); |
1241 | |
1324 | |
1242 | errno = old_errno; |
1325 | errno = old_errno; |
1243 | } |
1326 | } |
1244 | } |
1327 | } |
1245 | |
1328 | |
… | |
… | |
1258 | } |
1341 | } |
1259 | else |
1342 | else |
1260 | #endif |
1343 | #endif |
1261 | { |
1344 | { |
1262 | char dummy; |
1345 | char dummy; |
|
|
1346 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1263 | read (evpipe [0], &dummy, 1); |
1347 | read (evpipe [0], &dummy, 1); |
1264 | } |
1348 | } |
1265 | |
1349 | |
1266 | if (sig_pending) |
1350 | if (sig_pending) |
1267 | { |
1351 | { |
… | |
… | |
1346 | break; |
1430 | break; |
1347 | } |
1431 | } |
1348 | } |
1432 | } |
1349 | #endif |
1433 | #endif |
1350 | |
1434 | |
|
|
1435 | #endif |
|
|
1436 | |
1351 | /*****************************************************************************/ |
1437 | /*****************************************************************************/ |
1352 | |
1438 | |
|
|
1439 | #if EV_CHILD_ENABLE |
1353 | static WL childs [EV_PID_HASHSIZE]; |
1440 | static WL childs [EV_PID_HASHSIZE]; |
1354 | |
|
|
1355 | #ifndef _WIN32 |
|
|
1356 | |
1441 | |
1357 | static ev_signal childev; |
1442 | static ev_signal childev; |
1358 | |
1443 | |
1359 | #ifndef WIFCONTINUED |
1444 | #ifndef WIFCONTINUED |
1360 | # define WIFCONTINUED(status) 0 |
1445 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1365 | child_reap (EV_P_ int chain, int pid, int status) |
1450 | child_reap (EV_P_ int chain, int pid, int status) |
1366 | { |
1451 | { |
1367 | ev_child *w; |
1452 | ev_child *w; |
1368 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1453 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1369 | |
1454 | |
1370 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1455 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1371 | { |
1456 | { |
1372 | if ((w->pid == pid || !w->pid) |
1457 | if ((w->pid == pid || !w->pid) |
1373 | && (!traced || (w->flags & 1))) |
1458 | && (!traced || (w->flags & 1))) |
1374 | { |
1459 | { |
1375 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1460 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1400 | /* make sure we are called again until all children have been reaped */ |
1485 | /* make sure we are called again until all children have been reaped */ |
1401 | /* we need to do it this way so that the callback gets called before we continue */ |
1486 | /* we need to do it this way so that the callback gets called before we continue */ |
1402 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1487 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1403 | |
1488 | |
1404 | child_reap (EV_A_ pid, pid, status); |
1489 | child_reap (EV_A_ pid, pid, status); |
1405 | if (EV_PID_HASHSIZE > 1) |
1490 | if ((EV_PID_HASHSIZE) > 1) |
1406 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1491 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1407 | } |
1492 | } |
1408 | |
1493 | |
1409 | #endif |
1494 | #endif |
1410 | |
1495 | |
1411 | /*****************************************************************************/ |
1496 | /*****************************************************************************/ |
1412 | |
1497 | |
|
|
1498 | #if EV_USE_IOCP |
|
|
1499 | # include "ev_iocp.c" |
|
|
1500 | #endif |
1413 | #if EV_USE_PORT |
1501 | #if EV_USE_PORT |
1414 | # include "ev_port.c" |
1502 | # include "ev_port.c" |
1415 | #endif |
1503 | #endif |
1416 | #if EV_USE_KQUEUE |
1504 | #if EV_USE_KQUEUE |
1417 | # include "ev_kqueue.c" |
1505 | # include "ev_kqueue.c" |
… | |
… | |
1477 | #ifdef __APPLE__ |
1565 | #ifdef __APPLE__ |
1478 | /* only select works correctly on that "unix-certified" platform */ |
1566 | /* only select works correctly on that "unix-certified" platform */ |
1479 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1567 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1480 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1568 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1481 | #endif |
1569 | #endif |
|
|
1570 | #ifdef __FreeBSD__ |
|
|
1571 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1572 | #endif |
1482 | |
1573 | |
1483 | return flags; |
1574 | return flags; |
1484 | } |
1575 | } |
1485 | |
1576 | |
1486 | unsigned int |
1577 | unsigned int |
1487 | ev_embeddable_backends (void) |
1578 | ev_embeddable_backends (void) |
1488 | { |
1579 | { |
1489 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1580 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1490 | |
1581 | |
1491 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1582 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1492 | /* please fix it and tell me how to detect the fix */ |
1583 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1493 | flags &= ~EVBACKEND_EPOLL; |
1584 | flags &= ~EVBACKEND_EPOLL; |
1494 | |
1585 | |
1495 | return flags; |
1586 | return flags; |
1496 | } |
1587 | } |
1497 | |
1588 | |
1498 | unsigned int |
1589 | unsigned int |
1499 | ev_backend (EV_P) |
1590 | ev_backend (EV_P) |
1500 | { |
1591 | { |
1501 | return backend; |
1592 | return backend; |
1502 | } |
1593 | } |
1503 | |
1594 | |
1504 | #if EV_MINIMAL < 2 |
1595 | #if EV_FEATURE_API |
1505 | unsigned int |
1596 | unsigned int |
1506 | ev_loop_count (EV_P) |
1597 | ev_iteration (EV_P) |
1507 | { |
1598 | { |
1508 | return loop_count; |
1599 | return loop_count; |
1509 | } |
1600 | } |
1510 | |
1601 | |
1511 | unsigned int |
1602 | unsigned int |
1512 | ev_loop_depth (EV_P) |
1603 | ev_depth (EV_P) |
1513 | { |
1604 | { |
1514 | return loop_depth; |
1605 | return loop_depth; |
1515 | } |
1606 | } |
1516 | |
1607 | |
1517 | void |
1608 | void |
… | |
… | |
1589 | |
1680 | |
1590 | ev_rt_now = ev_time (); |
1681 | ev_rt_now = ev_time (); |
1591 | mn_now = get_clock (); |
1682 | mn_now = get_clock (); |
1592 | now_floor = mn_now; |
1683 | now_floor = mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
1684 | rtmn_diff = ev_rt_now - mn_now; |
1594 | #if EV_MINIMAL < 2 |
1685 | #if EV_FEATURE_API |
1595 | invoke_cb = ev_invoke_pending; |
1686 | invoke_cb = ev_invoke_pending; |
1596 | #endif |
1687 | #endif |
1597 | |
1688 | |
1598 | io_blocktime = 0.; |
1689 | io_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
1690 | timeout_blocktime = 0.; |
… | |
… | |
1611 | #endif |
1702 | #endif |
1612 | |
1703 | |
1613 | if (!(flags & 0x0000ffffU)) |
1704 | if (!(flags & 0x0000ffffU)) |
1614 | flags |= ev_recommended_backends (); |
1705 | flags |= ev_recommended_backends (); |
1615 | |
1706 | |
|
|
1707 | #if EV_USE_IOCP |
|
|
1708 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1709 | #endif |
1616 | #if EV_USE_PORT |
1710 | #if EV_USE_PORT |
1617 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1711 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1618 | #endif |
1712 | #endif |
1619 | #if EV_USE_KQUEUE |
1713 | #if EV_USE_KQUEUE |
1620 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1714 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1629 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1630 | #endif |
1724 | #endif |
1631 | |
1725 | |
1632 | ev_prepare_init (&pending_w, pendingcb); |
1726 | ev_prepare_init (&pending_w, pendingcb); |
1633 | |
1727 | |
|
|
1728 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1634 | ev_init (&pipe_w, pipecb); |
1729 | ev_init (&pipe_w, pipecb); |
1635 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1730 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1731 | #endif |
1636 | } |
1732 | } |
1637 | } |
1733 | } |
1638 | |
1734 | |
1639 | /* free up a loop structure */ |
1735 | /* free up a loop structure */ |
1640 | static void noinline |
1736 | void |
1641 | loop_destroy (EV_P) |
1737 | ev_loop_destroy (EV_P) |
1642 | { |
1738 | { |
1643 | int i; |
1739 | int i; |
|
|
1740 | |
|
|
1741 | #if EV_MULTIPLICITY |
|
|
1742 | /* mimic free (0) */ |
|
|
1743 | if (!EV_A) |
|
|
1744 | return; |
|
|
1745 | #endif |
|
|
1746 | |
|
|
1747 | #if EV_CLEANUP_ENABLE |
|
|
1748 | /* queue cleanup watchers (and execute them) */ |
|
|
1749 | if (expect_false (cleanupcnt)) |
|
|
1750 | { |
|
|
1751 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1752 | EV_INVOKE_PENDING; |
|
|
1753 | } |
|
|
1754 | #endif |
|
|
1755 | |
|
|
1756 | #if EV_CHILD_ENABLE |
|
|
1757 | if (ev_is_active (&childev)) |
|
|
1758 | { |
|
|
1759 | ev_ref (EV_A); /* child watcher */ |
|
|
1760 | ev_signal_stop (EV_A_ &childev); |
|
|
1761 | } |
|
|
1762 | #endif |
1644 | |
1763 | |
1645 | if (ev_is_active (&pipe_w)) |
1764 | if (ev_is_active (&pipe_w)) |
1646 | { |
1765 | { |
1647 | /*ev_ref (EV_A);*/ |
1766 | /*ev_ref (EV_A);*/ |
1648 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1767 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1670 | #endif |
1789 | #endif |
1671 | |
1790 | |
1672 | if (backend_fd >= 0) |
1791 | if (backend_fd >= 0) |
1673 | close (backend_fd); |
1792 | close (backend_fd); |
1674 | |
1793 | |
|
|
1794 | #if EV_USE_IOCP |
|
|
1795 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1796 | #endif |
1675 | #if EV_USE_PORT |
1797 | #if EV_USE_PORT |
1676 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1798 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1677 | #endif |
1799 | #endif |
1678 | #if EV_USE_KQUEUE |
1800 | #if EV_USE_KQUEUE |
1679 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1801 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1706 | array_free (periodic, EMPTY); |
1828 | array_free (periodic, EMPTY); |
1707 | #endif |
1829 | #endif |
1708 | #if EV_FORK_ENABLE |
1830 | #if EV_FORK_ENABLE |
1709 | array_free (fork, EMPTY); |
1831 | array_free (fork, EMPTY); |
1710 | #endif |
1832 | #endif |
|
|
1833 | #if EV_CLEANUP_ENABLE |
|
|
1834 | array_free (cleanup, EMPTY); |
|
|
1835 | #endif |
1711 | array_free (prepare, EMPTY); |
1836 | array_free (prepare, EMPTY); |
1712 | array_free (check, EMPTY); |
1837 | array_free (check, EMPTY); |
1713 | #if EV_ASYNC_ENABLE |
1838 | #if EV_ASYNC_ENABLE |
1714 | array_free (async, EMPTY); |
1839 | array_free (async, EMPTY); |
1715 | #endif |
1840 | #endif |
1716 | |
1841 | |
1717 | backend = 0; |
1842 | backend = 0; |
|
|
1843 | |
|
|
1844 | #if EV_MULTIPLICITY |
|
|
1845 | if (ev_is_default_loop (EV_A)) |
|
|
1846 | #endif |
|
|
1847 | ev_default_loop_ptr = 0; |
|
|
1848 | #if EV_MULTIPLICITY |
|
|
1849 | else |
|
|
1850 | ev_free (EV_A); |
|
|
1851 | #endif |
1718 | } |
1852 | } |
1719 | |
1853 | |
1720 | #if EV_USE_INOTIFY |
1854 | #if EV_USE_INOTIFY |
1721 | inline_size void infy_fork (EV_P); |
1855 | inline_size void infy_fork (EV_P); |
1722 | #endif |
1856 | #endif |
… | |
… | |
1758 | { |
1892 | { |
1759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1893 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1760 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1894 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1761 | } |
1895 | } |
1762 | |
1896 | |
|
|
1897 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1763 | evpipe_init (EV_A); |
1898 | evpipe_init (EV_A); |
1764 | /* now iterate over everything, in case we missed something */ |
1899 | /* now iterate over everything, in case we missed something */ |
1765 | pipecb (EV_A_ &pipe_w, EV_READ); |
1900 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1901 | #endif |
1766 | } |
1902 | } |
1767 | |
1903 | |
1768 | postfork = 0; |
1904 | postfork = 0; |
1769 | } |
1905 | } |
1770 | |
1906 | |
… | |
… | |
1779 | loop_init (EV_A_ flags); |
1915 | loop_init (EV_A_ flags); |
1780 | |
1916 | |
1781 | if (ev_backend (EV_A)) |
1917 | if (ev_backend (EV_A)) |
1782 | return EV_A; |
1918 | return EV_A; |
1783 | |
1919 | |
|
|
1920 | ev_free (EV_A); |
1784 | return 0; |
1921 | return 0; |
1785 | } |
1922 | } |
1786 | |
1923 | |
1787 | void |
|
|
1788 | ev_loop_destroy (EV_P) |
|
|
1789 | { |
|
|
1790 | loop_destroy (EV_A); |
|
|
1791 | ev_free (loop); |
|
|
1792 | } |
|
|
1793 | |
|
|
1794 | void |
|
|
1795 | ev_loop_fork (EV_P) |
|
|
1796 | { |
|
|
1797 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1798 | } |
|
|
1799 | #endif /* multiplicity */ |
1924 | #endif /* multiplicity */ |
1800 | |
1925 | |
1801 | #if EV_VERIFY |
1926 | #if EV_VERIFY |
1802 | static void noinline |
1927 | static void noinline |
1803 | verify_watcher (EV_P_ W w) |
1928 | verify_watcher (EV_P_ W w) |
… | |
… | |
1832 | verify_watcher (EV_A_ ws [cnt]); |
1957 | verify_watcher (EV_A_ ws [cnt]); |
1833 | } |
1958 | } |
1834 | } |
1959 | } |
1835 | #endif |
1960 | #endif |
1836 | |
1961 | |
1837 | #if EV_MINIMAL < 2 |
1962 | #if EV_FEATURE_API |
1838 | void |
1963 | void |
1839 | ev_loop_verify (EV_P) |
1964 | ev_verify (EV_P) |
1840 | { |
1965 | { |
1841 | #if EV_VERIFY |
1966 | #if EV_VERIFY |
1842 | int i; |
1967 | int i; |
1843 | WL w; |
1968 | WL w; |
1844 | |
1969 | |
… | |
… | |
1878 | #if EV_FORK_ENABLE |
2003 | #if EV_FORK_ENABLE |
1879 | assert (forkmax >= forkcnt); |
2004 | assert (forkmax >= forkcnt); |
1880 | array_verify (EV_A_ (W *)forks, forkcnt); |
2005 | array_verify (EV_A_ (W *)forks, forkcnt); |
1881 | #endif |
2006 | #endif |
1882 | |
2007 | |
|
|
2008 | #if EV_CLEANUP_ENABLE |
|
|
2009 | assert (cleanupmax >= cleanupcnt); |
|
|
2010 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2011 | #endif |
|
|
2012 | |
1883 | #if EV_ASYNC_ENABLE |
2013 | #if EV_ASYNC_ENABLE |
1884 | assert (asyncmax >= asynccnt); |
2014 | assert (asyncmax >= asynccnt); |
1885 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2015 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1886 | #endif |
2016 | #endif |
1887 | |
2017 | |
|
|
2018 | #if EV_PREPARE_ENABLE |
1888 | assert (preparemax >= preparecnt); |
2019 | assert (preparemax >= preparecnt); |
1889 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2020 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2021 | #endif |
1890 | |
2022 | |
|
|
2023 | #if EV_CHECK_ENABLE |
1891 | assert (checkmax >= checkcnt); |
2024 | assert (checkmax >= checkcnt); |
1892 | array_verify (EV_A_ (W *)checks, checkcnt); |
2025 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2026 | #endif |
1893 | |
2027 | |
1894 | # if 0 |
2028 | # if 0 |
|
|
2029 | #if EV_CHILD_ENABLE |
1895 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2030 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1896 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
2031 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2032 | #endif |
1897 | # endif |
2033 | # endif |
1898 | #endif |
2034 | #endif |
1899 | } |
2035 | } |
1900 | #endif |
2036 | #endif |
1901 | |
2037 | |
1902 | #if EV_MULTIPLICITY |
2038 | #if EV_MULTIPLICITY |
1903 | struct ev_loop * |
2039 | struct ev_loop * |
1904 | ev_default_loop_init (unsigned int flags) |
|
|
1905 | #else |
2040 | #else |
1906 | int |
2041 | int |
|
|
2042 | #endif |
1907 | ev_default_loop (unsigned int flags) |
2043 | ev_default_loop (unsigned int flags) |
1908 | #endif |
|
|
1909 | { |
2044 | { |
1910 | if (!ev_default_loop_ptr) |
2045 | if (!ev_default_loop_ptr) |
1911 | { |
2046 | { |
1912 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1913 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2048 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1917 | |
2052 | |
1918 | loop_init (EV_A_ flags); |
2053 | loop_init (EV_A_ flags); |
1919 | |
2054 | |
1920 | if (ev_backend (EV_A)) |
2055 | if (ev_backend (EV_A)) |
1921 | { |
2056 | { |
1922 | #ifndef _WIN32 |
2057 | #if EV_CHILD_ENABLE |
1923 | ev_signal_init (&childev, childcb, SIGCHLD); |
2058 | ev_signal_init (&childev, childcb, SIGCHLD); |
1924 | ev_set_priority (&childev, EV_MAXPRI); |
2059 | ev_set_priority (&childev, EV_MAXPRI); |
1925 | ev_signal_start (EV_A_ &childev); |
2060 | ev_signal_start (EV_A_ &childev); |
1926 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2061 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1927 | #endif |
2062 | #endif |
… | |
… | |
1932 | |
2067 | |
1933 | return ev_default_loop_ptr; |
2068 | return ev_default_loop_ptr; |
1934 | } |
2069 | } |
1935 | |
2070 | |
1936 | void |
2071 | void |
1937 | ev_default_destroy (void) |
2072 | ev_loop_fork (EV_P) |
1938 | { |
2073 | { |
1939 | #if EV_MULTIPLICITY |
|
|
1940 | EV_P = ev_default_loop_ptr; |
|
|
1941 | #endif |
|
|
1942 | |
|
|
1943 | ev_default_loop_ptr = 0; |
|
|
1944 | |
|
|
1945 | #ifndef _WIN32 |
|
|
1946 | ev_ref (EV_A); /* child watcher */ |
|
|
1947 | ev_signal_stop (EV_A_ &childev); |
|
|
1948 | #endif |
|
|
1949 | |
|
|
1950 | loop_destroy (EV_A); |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | void |
|
|
1954 | ev_default_fork (void) |
|
|
1955 | { |
|
|
1956 | #if EV_MULTIPLICITY |
|
|
1957 | EV_P = ev_default_loop_ptr; |
|
|
1958 | #endif |
|
|
1959 | |
|
|
1960 | postfork = 1; /* must be in line with ev_loop_fork */ |
2074 | postfork = 1; /* must be in line with ev_default_fork */ |
1961 | } |
2075 | } |
1962 | |
2076 | |
1963 | /*****************************************************************************/ |
2077 | /*****************************************************************************/ |
1964 | |
2078 | |
1965 | void |
2079 | void |
… | |
… | |
2056 | EV_FREQUENT_CHECK; |
2170 | EV_FREQUENT_CHECK; |
2057 | feed_reverse (EV_A_ (W)w); |
2171 | feed_reverse (EV_A_ (W)w); |
2058 | } |
2172 | } |
2059 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2173 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2060 | |
2174 | |
2061 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2175 | feed_reverse_done (EV_A_ EV_TIMER); |
2062 | } |
2176 | } |
2063 | } |
2177 | } |
2064 | |
2178 | |
2065 | #if EV_PERIODIC_ENABLE |
2179 | #if EV_PERIODIC_ENABLE |
2066 | /* make periodics pending */ |
2180 | /* make periodics pending */ |
… | |
… | |
2119 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2233 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2120 | } |
2234 | } |
2121 | } |
2235 | } |
2122 | |
2236 | |
2123 | /* simply recalculate all periodics */ |
2237 | /* simply recalculate all periodics */ |
2124 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2238 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2125 | static void noinline |
2239 | static void noinline |
2126 | periodics_reschedule (EV_P) |
2240 | periodics_reschedule (EV_P) |
2127 | { |
2241 | { |
2128 | int i; |
2242 | int i; |
2129 | |
2243 | |
… | |
… | |
2225 | mn_now = ev_rt_now; |
2339 | mn_now = ev_rt_now; |
2226 | } |
2340 | } |
2227 | } |
2341 | } |
2228 | |
2342 | |
2229 | void |
2343 | void |
2230 | ev_loop (EV_P_ int flags) |
2344 | ev_run (EV_P_ int flags) |
2231 | { |
2345 | { |
2232 | #if EV_MINIMAL < 2 |
2346 | #if EV_FEATURE_API |
2233 | ++loop_depth; |
2347 | ++loop_depth; |
2234 | #endif |
2348 | #endif |
2235 | |
2349 | |
2236 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2350 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2237 | |
2351 | |
2238 | loop_done = EVUNLOOP_CANCEL; |
2352 | loop_done = EVBREAK_CANCEL; |
2239 | |
2353 | |
2240 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2354 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2241 | |
2355 | |
2242 | do |
2356 | do |
2243 | { |
2357 | { |
2244 | #if EV_VERIFY >= 2 |
2358 | #if EV_VERIFY >= 2 |
2245 | ev_loop_verify (EV_A); |
2359 | ev_verify (EV_A); |
2246 | #endif |
2360 | #endif |
2247 | |
2361 | |
2248 | #ifndef _WIN32 |
2362 | #ifndef _WIN32 |
2249 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2363 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2250 | if (expect_false (getpid () != curpid)) |
2364 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2262 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2376 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2263 | EV_INVOKE_PENDING; |
2377 | EV_INVOKE_PENDING; |
2264 | } |
2378 | } |
2265 | #endif |
2379 | #endif |
2266 | |
2380 | |
|
|
2381 | #if EV_PREPARE_ENABLE |
2267 | /* queue prepare watchers (and execute them) */ |
2382 | /* queue prepare watchers (and execute them) */ |
2268 | if (expect_false (preparecnt)) |
2383 | if (expect_false (preparecnt)) |
2269 | { |
2384 | { |
2270 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2385 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2271 | EV_INVOKE_PENDING; |
2386 | EV_INVOKE_PENDING; |
2272 | } |
2387 | } |
|
|
2388 | #endif |
2273 | |
2389 | |
2274 | if (expect_false (loop_done)) |
2390 | if (expect_false (loop_done)) |
2275 | break; |
2391 | break; |
2276 | |
2392 | |
2277 | /* we might have forked, so reify kernel state if necessary */ |
2393 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2284 | /* calculate blocking time */ |
2400 | /* calculate blocking time */ |
2285 | { |
2401 | { |
2286 | ev_tstamp waittime = 0.; |
2402 | ev_tstamp waittime = 0.; |
2287 | ev_tstamp sleeptime = 0.; |
2403 | ev_tstamp sleeptime = 0.; |
2288 | |
2404 | |
|
|
2405 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2406 | ev_tstamp prev_mn_now = mn_now; |
|
|
2407 | |
|
|
2408 | /* update time to cancel out callback processing overhead */ |
|
|
2409 | time_update (EV_A_ 1e100); |
|
|
2410 | |
2289 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2411 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2290 | { |
2412 | { |
2291 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2292 | ev_tstamp prev_mn_now = mn_now; |
|
|
2293 | |
|
|
2294 | /* update time to cancel out callback processing overhead */ |
|
|
2295 | time_update (EV_A_ 1e100); |
|
|
2296 | |
|
|
2297 | waittime = MAX_BLOCKTIME; |
2413 | waittime = MAX_BLOCKTIME; |
2298 | |
2414 | |
2299 | if (timercnt) |
2415 | if (timercnt) |
2300 | { |
2416 | { |
2301 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2417 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2328 | waittime -= sleeptime; |
2444 | waittime -= sleeptime; |
2329 | } |
2445 | } |
2330 | } |
2446 | } |
2331 | } |
2447 | } |
2332 | |
2448 | |
2333 | #if EV_MINIMAL < 2 |
2449 | #if EV_FEATURE_API |
2334 | ++loop_count; |
2450 | ++loop_count; |
2335 | #endif |
2451 | #endif |
2336 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2452 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2337 | backend_poll (EV_A_ waittime); |
2453 | backend_poll (EV_A_ waittime); |
2338 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2454 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2339 | |
2455 | |
2340 | /* update ev_rt_now, do magic */ |
2456 | /* update ev_rt_now, do magic */ |
2341 | time_update (EV_A_ waittime + sleeptime); |
2457 | time_update (EV_A_ waittime + sleeptime); |
2342 | } |
2458 | } |
2343 | |
2459 | |
… | |
… | |
2350 | #if EV_IDLE_ENABLE |
2466 | #if EV_IDLE_ENABLE |
2351 | /* queue idle watchers unless other events are pending */ |
2467 | /* queue idle watchers unless other events are pending */ |
2352 | idle_reify (EV_A); |
2468 | idle_reify (EV_A); |
2353 | #endif |
2469 | #endif |
2354 | |
2470 | |
|
|
2471 | #if EV_CHECK_ENABLE |
2355 | /* queue check watchers, to be executed first */ |
2472 | /* queue check watchers, to be executed first */ |
2356 | if (expect_false (checkcnt)) |
2473 | if (expect_false (checkcnt)) |
2357 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2474 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2475 | #endif |
2358 | |
2476 | |
2359 | EV_INVOKE_PENDING; |
2477 | EV_INVOKE_PENDING; |
2360 | } |
2478 | } |
2361 | while (expect_true ( |
2479 | while (expect_true ( |
2362 | activecnt |
2480 | activecnt |
2363 | && !loop_done |
2481 | && !loop_done |
2364 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2482 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2365 | )); |
2483 | )); |
2366 | |
2484 | |
2367 | if (loop_done == EVUNLOOP_ONE) |
2485 | if (loop_done == EVBREAK_ONE) |
2368 | loop_done = EVUNLOOP_CANCEL; |
2486 | loop_done = EVBREAK_CANCEL; |
2369 | |
2487 | |
2370 | #if EV_MINIMAL < 2 |
2488 | #if EV_FEATURE_API |
2371 | --loop_depth; |
2489 | --loop_depth; |
2372 | #endif |
2490 | #endif |
2373 | } |
2491 | } |
2374 | |
2492 | |
2375 | void |
2493 | void |
2376 | ev_unloop (EV_P_ int how) |
2494 | ev_break (EV_P_ int how) |
2377 | { |
2495 | { |
2378 | loop_done = how; |
2496 | loop_done = how; |
2379 | } |
2497 | } |
2380 | |
2498 | |
2381 | void |
2499 | void |
… | |
… | |
2501 | |
2619 | |
2502 | if (expect_false (ev_is_active (w))) |
2620 | if (expect_false (ev_is_active (w))) |
2503 | return; |
2621 | return; |
2504 | |
2622 | |
2505 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2623 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2506 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2624 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2507 | |
2625 | |
2508 | EV_FREQUENT_CHECK; |
2626 | EV_FREQUENT_CHECK; |
2509 | |
2627 | |
2510 | ev_start (EV_A_ (W)w, 1); |
2628 | ev_start (EV_A_ (W)w, 1); |
2511 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2629 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2529 | EV_FREQUENT_CHECK; |
2647 | EV_FREQUENT_CHECK; |
2530 | |
2648 | |
2531 | wlist_del (&anfds[w->fd].head, (WL)w); |
2649 | wlist_del (&anfds[w->fd].head, (WL)w); |
2532 | ev_stop (EV_A_ (W)w); |
2650 | ev_stop (EV_A_ (W)w); |
2533 | |
2651 | |
2534 | fd_change (EV_A_ w->fd, 1); |
2652 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2535 | |
2653 | |
2536 | EV_FREQUENT_CHECK; |
2654 | EV_FREQUENT_CHECK; |
2537 | } |
2655 | } |
2538 | |
2656 | |
2539 | void noinline |
2657 | void noinline |
… | |
… | |
2581 | timers [active] = timers [timercnt + HEAP0]; |
2699 | timers [active] = timers [timercnt + HEAP0]; |
2582 | adjustheap (timers, timercnt, active); |
2700 | adjustheap (timers, timercnt, active); |
2583 | } |
2701 | } |
2584 | } |
2702 | } |
2585 | |
2703 | |
2586 | EV_FREQUENT_CHECK; |
|
|
2587 | |
|
|
2588 | ev_at (w) -= mn_now; |
2704 | ev_at (w) -= mn_now; |
2589 | |
2705 | |
2590 | ev_stop (EV_A_ (W)w); |
2706 | ev_stop (EV_A_ (W)w); |
|
|
2707 | |
|
|
2708 | EV_FREQUENT_CHECK; |
2591 | } |
2709 | } |
2592 | |
2710 | |
2593 | void noinline |
2711 | void noinline |
2594 | ev_timer_again (EV_P_ ev_timer *w) |
2712 | ev_timer_again (EV_P_ ev_timer *w) |
2595 | { |
2713 | { |
… | |
… | |
2674 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2792 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2675 | adjustheap (periodics, periodiccnt, active); |
2793 | adjustheap (periodics, periodiccnt, active); |
2676 | } |
2794 | } |
2677 | } |
2795 | } |
2678 | |
2796 | |
2679 | EV_FREQUENT_CHECK; |
|
|
2680 | |
|
|
2681 | ev_stop (EV_A_ (W)w); |
2797 | ev_stop (EV_A_ (W)w); |
|
|
2798 | |
|
|
2799 | EV_FREQUENT_CHECK; |
2682 | } |
2800 | } |
2683 | |
2801 | |
2684 | void noinline |
2802 | void noinline |
2685 | ev_periodic_again (EV_P_ ev_periodic *w) |
2803 | ev_periodic_again (EV_P_ ev_periodic *w) |
2686 | { |
2804 | { |
… | |
… | |
2691 | #endif |
2809 | #endif |
2692 | |
2810 | |
2693 | #ifndef SA_RESTART |
2811 | #ifndef SA_RESTART |
2694 | # define SA_RESTART 0 |
2812 | # define SA_RESTART 0 |
2695 | #endif |
2813 | #endif |
|
|
2814 | |
|
|
2815 | #if EV_SIGNAL_ENABLE |
2696 | |
2816 | |
2697 | void noinline |
2817 | void noinline |
2698 | ev_signal_start (EV_P_ ev_signal *w) |
2818 | ev_signal_start (EV_P_ ev_signal *w) |
2699 | { |
2819 | { |
2700 | if (expect_false (ev_is_active (w))) |
2820 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2807 | } |
2927 | } |
2808 | |
2928 | |
2809 | EV_FREQUENT_CHECK; |
2929 | EV_FREQUENT_CHECK; |
2810 | } |
2930 | } |
2811 | |
2931 | |
|
|
2932 | #endif |
|
|
2933 | |
|
|
2934 | #if EV_CHILD_ENABLE |
|
|
2935 | |
2812 | void |
2936 | void |
2813 | ev_child_start (EV_P_ ev_child *w) |
2937 | ev_child_start (EV_P_ ev_child *w) |
2814 | { |
2938 | { |
2815 | #if EV_MULTIPLICITY |
2939 | #if EV_MULTIPLICITY |
2816 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2940 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
… | |
… | |
2819 | return; |
2943 | return; |
2820 | |
2944 | |
2821 | EV_FREQUENT_CHECK; |
2945 | EV_FREQUENT_CHECK; |
2822 | |
2946 | |
2823 | ev_start (EV_A_ (W)w, 1); |
2947 | ev_start (EV_A_ (W)w, 1); |
2824 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2948 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2825 | |
2949 | |
2826 | EV_FREQUENT_CHECK; |
2950 | EV_FREQUENT_CHECK; |
2827 | } |
2951 | } |
2828 | |
2952 | |
2829 | void |
2953 | void |
… | |
… | |
2833 | if (expect_false (!ev_is_active (w))) |
2957 | if (expect_false (!ev_is_active (w))) |
2834 | return; |
2958 | return; |
2835 | |
2959 | |
2836 | EV_FREQUENT_CHECK; |
2960 | EV_FREQUENT_CHECK; |
2837 | |
2961 | |
2838 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2962 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2839 | ev_stop (EV_A_ (W)w); |
2963 | ev_stop (EV_A_ (W)w); |
2840 | |
2964 | |
2841 | EV_FREQUENT_CHECK; |
2965 | EV_FREQUENT_CHECK; |
2842 | } |
2966 | } |
|
|
2967 | |
|
|
2968 | #endif |
2843 | |
2969 | |
2844 | #if EV_STAT_ENABLE |
2970 | #if EV_STAT_ENABLE |
2845 | |
2971 | |
2846 | # ifdef _WIN32 |
2972 | # ifdef _WIN32 |
2847 | # undef lstat |
2973 | # undef lstat |
… | |
… | |
2853 | #define MIN_STAT_INTERVAL 0.1074891 |
2979 | #define MIN_STAT_INTERVAL 0.1074891 |
2854 | |
2980 | |
2855 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2981 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2856 | |
2982 | |
2857 | #if EV_USE_INOTIFY |
2983 | #if EV_USE_INOTIFY |
2858 | # define EV_INOTIFY_BUFSIZE 8192 |
2984 | |
|
|
2985 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2986 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2859 | |
2987 | |
2860 | static void noinline |
2988 | static void noinline |
2861 | infy_add (EV_P_ ev_stat *w) |
2989 | infy_add (EV_P_ ev_stat *w) |
2862 | { |
2990 | { |
2863 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2991 | 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); |
… | |
… | |
2912 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3040 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2913 | } |
3041 | } |
2914 | } |
3042 | } |
2915 | |
3043 | |
2916 | if (w->wd >= 0) |
3044 | if (w->wd >= 0) |
2917 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3045 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2918 | |
3046 | |
2919 | /* now re-arm timer, if required */ |
3047 | /* now re-arm timer, if required */ |
2920 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3048 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2921 | ev_timer_again (EV_A_ &w->timer); |
3049 | ev_timer_again (EV_A_ &w->timer); |
2922 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3050 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
… | |
… | |
2930 | |
3058 | |
2931 | if (wd < 0) |
3059 | if (wd < 0) |
2932 | return; |
3060 | return; |
2933 | |
3061 | |
2934 | w->wd = -2; |
3062 | w->wd = -2; |
2935 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3063 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2936 | wlist_del (&fs_hash [slot].head, (WL)w); |
3064 | wlist_del (&fs_hash [slot].head, (WL)w); |
2937 | |
3065 | |
2938 | /* remove this watcher, if others are watching it, they will rearm */ |
3066 | /* remove this watcher, if others are watching it, they will rearm */ |
2939 | inotify_rm_watch (fs_fd, wd); |
3067 | inotify_rm_watch (fs_fd, wd); |
2940 | } |
3068 | } |
… | |
… | |
2942 | static void noinline |
3070 | static void noinline |
2943 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3071 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2944 | { |
3072 | { |
2945 | if (slot < 0) |
3073 | if (slot < 0) |
2946 | /* overflow, need to check for all hash slots */ |
3074 | /* overflow, need to check for all hash slots */ |
2947 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3075 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2948 | infy_wd (EV_A_ slot, wd, ev); |
3076 | infy_wd (EV_A_ slot, wd, ev); |
2949 | else |
3077 | else |
2950 | { |
3078 | { |
2951 | WL w_; |
3079 | WL w_; |
2952 | |
3080 | |
2953 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3081 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2954 | { |
3082 | { |
2955 | ev_stat *w = (ev_stat *)w_; |
3083 | ev_stat *w = (ev_stat *)w_; |
2956 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3084 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2957 | |
3085 | |
2958 | if (w->wd == wd || wd == -1) |
3086 | if (w->wd == wd || wd == -1) |
2959 | { |
3087 | { |
2960 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3088 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2961 | { |
3089 | { |
2962 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3090 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2963 | w->wd = -1; |
3091 | w->wd = -1; |
2964 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3092 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2965 | } |
3093 | } |
2966 | |
3094 | |
2967 | stat_timer_cb (EV_A_ &w->timer, 0); |
3095 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2972 | |
3100 | |
2973 | static void |
3101 | static void |
2974 | infy_cb (EV_P_ ev_io *w, int revents) |
3102 | infy_cb (EV_P_ ev_io *w, int revents) |
2975 | { |
3103 | { |
2976 | char buf [EV_INOTIFY_BUFSIZE]; |
3104 | char buf [EV_INOTIFY_BUFSIZE]; |
2977 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2978 | int ofs; |
3105 | int ofs; |
2979 | int len = read (fs_fd, buf, sizeof (buf)); |
3106 | int len = read (fs_fd, buf, sizeof (buf)); |
2980 | |
3107 | |
2981 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3108 | for (ofs = 0; ofs < len; ) |
|
|
3109 | { |
|
|
3110 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2982 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3111 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3112 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3113 | } |
2983 | } |
3114 | } |
2984 | |
3115 | |
2985 | inline_size void |
3116 | inline_size void |
2986 | check_2625 (EV_P) |
3117 | ev_check_2625 (EV_P) |
2987 | { |
3118 | { |
2988 | /* kernels < 2.6.25 are borked |
3119 | /* kernels < 2.6.25 are borked |
2989 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3120 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2990 | */ |
3121 | */ |
2991 | struct utsname buf; |
3122 | if (ev_linux_version () < 0x020619) |
2992 | int major, minor, micro; |
|
|
2993 | |
|
|
2994 | if (uname (&buf)) |
|
|
2995 | return; |
|
|
2996 | |
|
|
2997 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2998 | return; |
|
|
2999 | |
|
|
3000 | if (major < 2 |
|
|
3001 | || (major == 2 && minor < 6) |
|
|
3002 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3003 | return; |
3123 | return; |
3004 | |
3124 | |
3005 | fs_2625 = 1; |
3125 | fs_2625 = 1; |
3006 | } |
3126 | } |
3007 | |
3127 | |
… | |
… | |
3022 | if (fs_fd != -2) |
3142 | if (fs_fd != -2) |
3023 | return; |
3143 | return; |
3024 | |
3144 | |
3025 | fs_fd = -1; |
3145 | fs_fd = -1; |
3026 | |
3146 | |
3027 | check_2625 (EV_A); |
3147 | ev_check_2625 (EV_A); |
3028 | |
3148 | |
3029 | fs_fd = infy_newfd (); |
3149 | fs_fd = infy_newfd (); |
3030 | |
3150 | |
3031 | if (fs_fd >= 0) |
3151 | if (fs_fd >= 0) |
3032 | { |
3152 | { |
… | |
… | |
3057 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3177 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3058 | ev_io_start (EV_A_ &fs_w); |
3178 | ev_io_start (EV_A_ &fs_w); |
3059 | ev_unref (EV_A); |
3179 | ev_unref (EV_A); |
3060 | } |
3180 | } |
3061 | |
3181 | |
3062 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3182 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3063 | { |
3183 | { |
3064 | WL w_ = fs_hash [slot].head; |
3184 | WL w_ = fs_hash [slot].head; |
3065 | fs_hash [slot].head = 0; |
3185 | fs_hash [slot].head = 0; |
3066 | |
3186 | |
3067 | while (w_) |
3187 | while (w_) |
… | |
… | |
3242 | |
3362 | |
3243 | EV_FREQUENT_CHECK; |
3363 | EV_FREQUENT_CHECK; |
3244 | } |
3364 | } |
3245 | #endif |
3365 | #endif |
3246 | |
3366 | |
|
|
3367 | #if EV_PREPARE_ENABLE |
3247 | void |
3368 | void |
3248 | ev_prepare_start (EV_P_ ev_prepare *w) |
3369 | ev_prepare_start (EV_P_ ev_prepare *w) |
3249 | { |
3370 | { |
3250 | if (expect_false (ev_is_active (w))) |
3371 | if (expect_false (ev_is_active (w))) |
3251 | return; |
3372 | return; |
… | |
… | |
3277 | |
3398 | |
3278 | ev_stop (EV_A_ (W)w); |
3399 | ev_stop (EV_A_ (W)w); |
3279 | |
3400 | |
3280 | EV_FREQUENT_CHECK; |
3401 | EV_FREQUENT_CHECK; |
3281 | } |
3402 | } |
|
|
3403 | #endif |
3282 | |
3404 | |
|
|
3405 | #if EV_CHECK_ENABLE |
3283 | void |
3406 | void |
3284 | ev_check_start (EV_P_ ev_check *w) |
3407 | ev_check_start (EV_P_ ev_check *w) |
3285 | { |
3408 | { |
3286 | if (expect_false (ev_is_active (w))) |
3409 | if (expect_false (ev_is_active (w))) |
3287 | return; |
3410 | return; |
… | |
… | |
3313 | |
3436 | |
3314 | ev_stop (EV_A_ (W)w); |
3437 | ev_stop (EV_A_ (W)w); |
3315 | |
3438 | |
3316 | EV_FREQUENT_CHECK; |
3439 | EV_FREQUENT_CHECK; |
3317 | } |
3440 | } |
|
|
3441 | #endif |
3318 | |
3442 | |
3319 | #if EV_EMBED_ENABLE |
3443 | #if EV_EMBED_ENABLE |
3320 | void noinline |
3444 | void noinline |
3321 | ev_embed_sweep (EV_P_ ev_embed *w) |
3445 | ev_embed_sweep (EV_P_ ev_embed *w) |
3322 | { |
3446 | { |
3323 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3447 | ev_run (w->other, EVRUN_NOWAIT); |
3324 | } |
3448 | } |
3325 | |
3449 | |
3326 | static void |
3450 | static void |
3327 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3451 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3328 | { |
3452 | { |
3329 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3453 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3330 | |
3454 | |
3331 | if (ev_cb (w)) |
3455 | if (ev_cb (w)) |
3332 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3456 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3333 | else |
3457 | else |
3334 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3458 | ev_run (w->other, EVRUN_NOWAIT); |
3335 | } |
3459 | } |
3336 | |
3460 | |
3337 | static void |
3461 | static void |
3338 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3462 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3339 | { |
3463 | { |
… | |
… | |
3343 | EV_P = w->other; |
3467 | EV_P = w->other; |
3344 | |
3468 | |
3345 | while (fdchangecnt) |
3469 | while (fdchangecnt) |
3346 | { |
3470 | { |
3347 | fd_reify (EV_A); |
3471 | fd_reify (EV_A); |
3348 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3472 | ev_run (EV_A_ EVRUN_NOWAIT); |
3349 | } |
3473 | } |
3350 | } |
3474 | } |
3351 | } |
3475 | } |
3352 | |
3476 | |
3353 | static void |
3477 | static void |
… | |
… | |
3359 | |
3483 | |
3360 | { |
3484 | { |
3361 | EV_P = w->other; |
3485 | EV_P = w->other; |
3362 | |
3486 | |
3363 | ev_loop_fork (EV_A); |
3487 | ev_loop_fork (EV_A); |
3364 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3488 | ev_run (EV_A_ EVRUN_NOWAIT); |
3365 | } |
3489 | } |
3366 | |
3490 | |
3367 | ev_embed_start (EV_A_ w); |
3491 | ev_embed_start (EV_A_ w); |
3368 | } |
3492 | } |
3369 | |
3493 | |
… | |
… | |
3417 | |
3541 | |
3418 | ev_io_stop (EV_A_ &w->io); |
3542 | ev_io_stop (EV_A_ &w->io); |
3419 | ev_prepare_stop (EV_A_ &w->prepare); |
3543 | ev_prepare_stop (EV_A_ &w->prepare); |
3420 | ev_fork_stop (EV_A_ &w->fork); |
3544 | ev_fork_stop (EV_A_ &w->fork); |
3421 | |
3545 | |
|
|
3546 | ev_stop (EV_A_ (W)w); |
|
|
3547 | |
3422 | EV_FREQUENT_CHECK; |
3548 | EV_FREQUENT_CHECK; |
3423 | } |
3549 | } |
3424 | #endif |
3550 | #endif |
3425 | |
3551 | |
3426 | #if EV_FORK_ENABLE |
3552 | #if EV_FORK_ENABLE |
… | |
… | |
3459 | |
3585 | |
3460 | EV_FREQUENT_CHECK; |
3586 | EV_FREQUENT_CHECK; |
3461 | } |
3587 | } |
3462 | #endif |
3588 | #endif |
3463 | |
3589 | |
3464 | #if EV_ASYNC_ENABLE |
3590 | #if EV_CLEANUP_ENABLE |
3465 | void |
3591 | void |
3466 | ev_async_start (EV_P_ ev_async *w) |
3592 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3467 | { |
3593 | { |
3468 | if (expect_false (ev_is_active (w))) |
3594 | if (expect_false (ev_is_active (w))) |
3469 | return; |
3595 | return; |
|
|
3596 | |
|
|
3597 | EV_FREQUENT_CHECK; |
|
|
3598 | |
|
|
3599 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3600 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3601 | cleanups [cleanupcnt - 1] = w; |
|
|
3602 | |
|
|
3603 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3604 | ev_unref (EV_A); |
|
|
3605 | EV_FREQUENT_CHECK; |
|
|
3606 | } |
|
|
3607 | |
|
|
3608 | void |
|
|
3609 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3610 | { |
|
|
3611 | clear_pending (EV_A_ (W)w); |
|
|
3612 | if (expect_false (!ev_is_active (w))) |
|
|
3613 | return; |
|
|
3614 | |
|
|
3615 | EV_FREQUENT_CHECK; |
|
|
3616 | ev_ref (EV_A); |
|
|
3617 | |
|
|
3618 | { |
|
|
3619 | int active = ev_active (w); |
|
|
3620 | |
|
|
3621 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3622 | ev_active (cleanups [active - 1]) = active; |
|
|
3623 | } |
|
|
3624 | |
|
|
3625 | ev_stop (EV_A_ (W)w); |
|
|
3626 | |
|
|
3627 | EV_FREQUENT_CHECK; |
|
|
3628 | } |
|
|
3629 | #endif |
|
|
3630 | |
|
|
3631 | #if EV_ASYNC_ENABLE |
|
|
3632 | void |
|
|
3633 | ev_async_start (EV_P_ ev_async *w) |
|
|
3634 | { |
|
|
3635 | if (expect_false (ev_is_active (w))) |
|
|
3636 | return; |
|
|
3637 | |
|
|
3638 | w->sent = 0; |
3470 | |
3639 | |
3471 | evpipe_init (EV_A); |
3640 | evpipe_init (EV_A); |
3472 | |
3641 | |
3473 | EV_FREQUENT_CHECK; |
3642 | EV_FREQUENT_CHECK; |
3474 | |
3643 | |
… | |
… | |
3552 | { |
3721 | { |
3553 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3722 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3554 | |
3723 | |
3555 | if (expect_false (!once)) |
3724 | if (expect_false (!once)) |
3556 | { |
3725 | { |
3557 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3726 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3558 | return; |
3727 | return; |
3559 | } |
3728 | } |
3560 | |
3729 | |
3561 | once->cb = cb; |
3730 | once->cb = cb; |
3562 | once->arg = arg; |
3731 | once->arg = arg; |
… | |
… | |
3649 | if (types & EV_ASYNC) |
3818 | if (types & EV_ASYNC) |
3650 | for (i = asynccnt; i--; ) |
3819 | for (i = asynccnt; i--; ) |
3651 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3820 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3652 | #endif |
3821 | #endif |
3653 | |
3822 | |
|
|
3823 | #if EV_PREPARE_ENABLE |
3654 | if (types & EV_PREPARE) |
3824 | if (types & EV_PREPARE) |
3655 | for (i = preparecnt; i--; ) |
3825 | for (i = preparecnt; i--; ) |
3656 | #if EV_EMBED_ENABLE |
3826 | # if EV_EMBED_ENABLE |
3657 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3827 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3658 | #endif |
3828 | # endif |
3659 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3829 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3830 | #endif |
3660 | |
3831 | |
|
|
3832 | #if EV_CHECK_ENABLE |
3661 | if (types & EV_CHECK) |
3833 | if (types & EV_CHECK) |
3662 | for (i = checkcnt; i--; ) |
3834 | for (i = checkcnt; i--; ) |
3663 | cb (EV_A_ EV_CHECK, checks [i]); |
3835 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3836 | #endif |
3664 | |
3837 | |
|
|
3838 | #if EV_SIGNAL_ENABLE |
3665 | if (types & EV_SIGNAL) |
3839 | if (types & EV_SIGNAL) |
3666 | for (i = 0; i < EV_NSIG - 1; ++i) |
3840 | for (i = 0; i < EV_NSIG - 1; ++i) |
3667 | for (wl = signals [i].head; wl; ) |
3841 | for (wl = signals [i].head; wl; ) |
3668 | { |
3842 | { |
3669 | wn = wl->next; |
3843 | wn = wl->next; |
3670 | cb (EV_A_ EV_SIGNAL, wl); |
3844 | cb (EV_A_ EV_SIGNAL, wl); |
3671 | wl = wn; |
3845 | wl = wn; |
3672 | } |
3846 | } |
|
|
3847 | #endif |
3673 | |
3848 | |
|
|
3849 | #if EV_CHILD_ENABLE |
3674 | if (types & EV_CHILD) |
3850 | if (types & EV_CHILD) |
3675 | for (i = EV_PID_HASHSIZE; i--; ) |
3851 | for (i = (EV_PID_HASHSIZE); i--; ) |
3676 | for (wl = childs [i]; wl; ) |
3852 | for (wl = childs [i]; wl; ) |
3677 | { |
3853 | { |
3678 | wn = wl->next; |
3854 | wn = wl->next; |
3679 | cb (EV_A_ EV_CHILD, wl); |
3855 | cb (EV_A_ EV_CHILD, wl); |
3680 | wl = wn; |
3856 | wl = wn; |
3681 | } |
3857 | } |
|
|
3858 | #endif |
3682 | /* EV_STAT 0x00001000 /* stat data changed */ |
3859 | /* EV_STAT 0x00001000 /* stat data changed */ |
3683 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3860 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3684 | } |
3861 | } |
3685 | #endif |
3862 | #endif |
3686 | |
3863 | |
3687 | #if EV_MULTIPLICITY |
3864 | #if EV_MULTIPLICITY |
3688 | #include "ev_wrap.h" |
3865 | #include "ev_wrap.h" |
3689 | #endif |
3866 | #endif |
3690 | |
3867 | |
3691 | #ifdef __cplusplus |
3868 | EV_CPP(}) |
3692 | } |
|
|
3693 | #endif |
|
|
3694 | |
3869 | |