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 | * |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
79 | # endif |
79 | # endif |
80 | # endif |
80 | # endif |
81 | |
81 | |
|
|
82 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
83 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
85 | # endif |
85 | # else |
86 | # else |
|
|
87 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
88 | # define EV_USE_NANOSLEEP 0 |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
92 | # ifndef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
94 | # endif |
|
|
95 | # else |
|
|
96 | # undef EV_USE_SELECT |
|
|
97 | # define EV_USE_SELECT 0 |
88 | # endif |
98 | # endif |
89 | |
99 | |
|
|
100 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
101 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
102 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
103 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
104 | # else |
|
|
105 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
106 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
107 | # endif |
105 | |
108 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
109 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
110 | # ifndef EV_USE_EPOLL |
109 | # else |
111 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
112 | # endif |
|
|
113 | # else |
|
|
114 | # undef EV_USE_EPOLL |
|
|
115 | # define EV_USE_EPOLL 0 |
112 | # endif |
116 | # endif |
113 | |
117 | |
114 | # ifndef EV_USE_KQUEUE |
|
|
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
118 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
119 | # ifndef EV_USE_KQUEUE |
117 | # else |
120 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
121 | # endif |
|
|
122 | # else |
|
|
123 | # undef EV_USE_KQUEUE |
|
|
124 | # define EV_USE_KQUEUE 0 |
120 | # endif |
125 | # endif |
121 | |
126 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
127 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
128 | # ifndef EV_USE_PORT |
125 | # else |
129 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
130 | # endif |
|
|
131 | # else |
|
|
132 | # undef EV_USE_PORT |
|
|
133 | # define EV_USE_PORT 0 |
128 | # endif |
134 | # endif |
129 | |
135 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
136 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
137 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
138 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
139 | # endif |
|
|
140 | # else |
|
|
141 | # undef EV_USE_INOTIFY |
|
|
142 | # define EV_USE_INOTIFY 0 |
136 | # endif |
143 | # endif |
137 | |
144 | |
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
145 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
140 | # define EV_USE_SIGNALFD 1 |
146 | # ifndef EV_USE_SIGNALFD |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
147 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # endif |
148 | # endif |
|
|
149 | # else |
|
|
150 | # undef EV_USE_SIGNALFD |
|
|
151 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
152 | # endif |
145 | |
153 | |
|
|
154 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
155 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
156 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
157 | # endif |
|
|
158 | # else |
|
|
159 | # undef EV_USE_EVENTFD |
|
|
160 | # define EV_USE_EVENTFD 0 |
152 | # endif |
161 | # endif |
153 | |
162 | |
154 | #endif |
163 | #endif |
155 | |
164 | |
156 | #include <math.h> |
165 | #include <math.h> |
… | |
… | |
163 | |
172 | |
164 | #include <assert.h> |
173 | #include <assert.h> |
165 | #include <errno.h> |
174 | #include <errno.h> |
166 | #include <sys/types.h> |
175 | #include <sys/types.h> |
167 | #include <time.h> |
176 | #include <time.h> |
|
|
177 | #include <limits.h> |
168 | |
178 | |
169 | #include <signal.h> |
179 | #include <signal.h> |
170 | |
180 | |
171 | #ifdef EV_H |
181 | #ifdef EV_H |
172 | # include EV_H |
182 | # include EV_H |
… | |
… | |
183 | # define WIN32_LEAN_AND_MEAN |
193 | # define WIN32_LEAN_AND_MEAN |
184 | # include <windows.h> |
194 | # include <windows.h> |
185 | # ifndef EV_SELECT_IS_WINSOCKET |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # define EV_SELECT_IS_WINSOCKET 1 |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # endif |
197 | # endif |
|
|
198 | # undef EV_AVOID_STDIO |
188 | #endif |
199 | #endif |
|
|
200 | |
|
|
201 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
202 | * a limit of 1024 into their select. Where people have brains, |
|
|
203 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
204 | * ordered to have a vacuum, or they do anything for money. |
|
|
205 | * This might help. Or not. |
|
|
206 | */ |
|
|
207 | #define _DARWIN_UNLIMITED_SELECT 1 |
189 | |
208 | |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
209 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
191 | |
210 | |
192 | /* try to deduce the maximum number of signals on this platform */ |
211 | /* try to deduce the maximum number of signals on this platform */ |
193 | #if defined (EV_NSIG) |
212 | #if defined (EV_NSIG) |
… | |
… | |
205 | #elif defined (MAXSIG) |
224 | #elif defined (MAXSIG) |
206 | # define EV_NSIG (MAXSIG+1) |
225 | # define EV_NSIG (MAXSIG+1) |
207 | #elif defined (MAX_SIG) |
226 | #elif defined (MAX_SIG) |
208 | # define EV_NSIG (MAX_SIG+1) |
227 | # define EV_NSIG (MAX_SIG+1) |
209 | #elif defined (SIGARRAYSIZE) |
228 | #elif defined (SIGARRAYSIZE) |
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
229 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
211 | #elif defined (_sys_nsig) |
230 | #elif defined (_sys_nsig) |
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
231 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
213 | #else |
232 | #else |
214 | # error "unable to find value for NSIG, please report" |
233 | # error "unable to find value for NSIG, please report" |
215 | /* to make it compile regardless, just remove the above line */ |
234 | /* to make it compile regardless, just remove the above line, */ |
|
|
235 | /* but consider reporting it, too! :) */ |
216 | # define EV_NSIG 65 |
236 | # define EV_NSIG 65 |
217 | #endif |
237 | #endif |
218 | |
238 | |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
239 | #ifndef EV_USE_CLOCK_SYSCALL |
220 | # if __linux && __GLIBC__ >= 2 |
240 | # if __linux && __GLIBC__ >= 2 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
241 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
222 | # else |
242 | # else |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
243 | # define EV_USE_CLOCK_SYSCALL 0 |
224 | # endif |
244 | # endif |
225 | #endif |
245 | #endif |
226 | |
246 | |
227 | #ifndef EV_USE_MONOTONIC |
247 | #ifndef EV_USE_MONOTONIC |
228 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
248 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
229 | # define EV_USE_MONOTONIC 1 |
249 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
230 | # else |
250 | # else |
231 | # define EV_USE_MONOTONIC 0 |
251 | # define EV_USE_MONOTONIC 0 |
232 | # endif |
252 | # endif |
233 | #endif |
253 | #endif |
234 | |
254 | |
… | |
… | |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
256 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
237 | #endif |
257 | #endif |
238 | |
258 | |
239 | #ifndef EV_USE_NANOSLEEP |
259 | #ifndef EV_USE_NANOSLEEP |
240 | # if _POSIX_C_SOURCE >= 199309L |
260 | # if _POSIX_C_SOURCE >= 199309L |
241 | # define EV_USE_NANOSLEEP 1 |
261 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
242 | # else |
262 | # else |
243 | # define EV_USE_NANOSLEEP 0 |
263 | # define EV_USE_NANOSLEEP 0 |
244 | # endif |
264 | # endif |
245 | #endif |
265 | #endif |
246 | |
266 | |
247 | #ifndef EV_USE_SELECT |
267 | #ifndef EV_USE_SELECT |
248 | # define EV_USE_SELECT 1 |
268 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
249 | #endif |
269 | #endif |
250 | |
270 | |
251 | #ifndef EV_USE_POLL |
271 | #ifndef EV_USE_POLL |
252 | # ifdef _WIN32 |
272 | # ifdef _WIN32 |
253 | # define EV_USE_POLL 0 |
273 | # define EV_USE_POLL 0 |
254 | # else |
274 | # else |
255 | # define EV_USE_POLL 1 |
275 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
256 | # endif |
276 | # endif |
257 | #endif |
277 | #endif |
258 | |
278 | |
259 | #ifndef EV_USE_EPOLL |
279 | #ifndef EV_USE_EPOLL |
260 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
261 | # define EV_USE_EPOLL 1 |
281 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
262 | # else |
282 | # else |
263 | # define EV_USE_EPOLL 0 |
283 | # define EV_USE_EPOLL 0 |
264 | # endif |
284 | # endif |
265 | #endif |
285 | #endif |
266 | |
286 | |
… | |
… | |
272 | # define EV_USE_PORT 0 |
292 | # define EV_USE_PORT 0 |
273 | #endif |
293 | #endif |
274 | |
294 | |
275 | #ifndef EV_USE_INOTIFY |
295 | #ifndef EV_USE_INOTIFY |
276 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
296 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
277 | # define EV_USE_INOTIFY 1 |
297 | # define EV_USE_INOTIFY EV_FEATURE_OS |
278 | # else |
298 | # else |
279 | # define EV_USE_INOTIFY 0 |
299 | # define EV_USE_INOTIFY 0 |
280 | # endif |
300 | # endif |
281 | #endif |
301 | #endif |
282 | |
302 | |
283 | #ifndef EV_PID_HASHSIZE |
303 | #ifndef EV_PID_HASHSIZE |
284 | # if EV_MINIMAL |
304 | # 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 |
305 | #endif |
290 | |
306 | |
291 | #ifndef EV_INOTIFY_HASHSIZE |
307 | #ifndef EV_INOTIFY_HASHSIZE |
292 | # if EV_MINIMAL |
308 | # 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 |
309 | #endif |
298 | |
310 | |
299 | #ifndef EV_USE_EVENTFD |
311 | #ifndef EV_USE_EVENTFD |
300 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
301 | # define EV_USE_EVENTFD 1 |
313 | # define EV_USE_EVENTFD EV_FEATURE_OS |
302 | # else |
314 | # else |
303 | # define EV_USE_EVENTFD 0 |
315 | # define EV_USE_EVENTFD 0 |
304 | # endif |
316 | # endif |
305 | #endif |
317 | #endif |
306 | |
318 | |
307 | #ifndef EV_USE_SIGNALFD |
319 | #ifndef EV_USE_SIGNALFD |
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
320 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
309 | # define EV_USE_SIGNALFD 1 |
321 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
310 | # else |
322 | # else |
311 | # define EV_USE_SIGNALFD 0 |
323 | # define EV_USE_SIGNALFD 0 |
312 | # endif |
324 | # endif |
313 | #endif |
325 | #endif |
314 | |
326 | |
… | |
… | |
317 | # define EV_USE_4HEAP 1 |
329 | # define EV_USE_4HEAP 1 |
318 | # define EV_HEAP_CACHE_AT 1 |
330 | # define EV_HEAP_CACHE_AT 1 |
319 | #endif |
331 | #endif |
320 | |
332 | |
321 | #ifndef EV_VERIFY |
333 | #ifndef EV_VERIFY |
322 | # define EV_VERIFY !EV_MINIMAL |
334 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
323 | #endif |
335 | #endif |
324 | |
336 | |
325 | #ifndef EV_USE_4HEAP |
337 | #ifndef EV_USE_4HEAP |
326 | # define EV_USE_4HEAP !EV_MINIMAL |
338 | # define EV_USE_4HEAP EV_FEATURE_DATA |
327 | #endif |
339 | #endif |
328 | |
340 | |
329 | #ifndef EV_HEAP_CACHE_AT |
341 | #ifndef EV_HEAP_CACHE_AT |
330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
342 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
331 | #endif |
343 | #endif |
332 | |
344 | |
333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
345 | /* 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. */ |
346 | /* which makes programs even slower. might work on other unices, too. */ |
335 | #if EV_USE_CLOCK_SYSCALL |
347 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
343 | # define EV_USE_CLOCK_SYSCALL 0 |
355 | # define EV_USE_CLOCK_SYSCALL 0 |
344 | # endif |
356 | # endif |
345 | #endif |
357 | #endif |
346 | |
358 | |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
359 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
360 | |
|
|
361 | #ifdef _AIX |
|
|
362 | /* AIX has a completely broken poll.h header */ |
|
|
363 | # undef EV_USE_POLL |
|
|
364 | # define EV_USE_POLL 0 |
|
|
365 | #endif |
348 | |
366 | |
349 | #ifndef CLOCK_MONOTONIC |
367 | #ifndef CLOCK_MONOTONIC |
350 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
351 | # define EV_USE_MONOTONIC 0 |
369 | # define EV_USE_MONOTONIC 0 |
352 | #endif |
370 | #endif |
… | |
… | |
396 | # endif |
414 | # endif |
397 | # endif |
415 | # endif |
398 | # ifdef __cplusplus |
416 | # ifdef __cplusplus |
399 | extern "C" { |
417 | extern "C" { |
400 | # endif |
418 | # endif |
401 | int eventfd (unsigned int initval, int flags); |
419 | int (eventfd) (unsigned int initval, int flags); |
402 | # ifdef __cplusplus |
420 | # ifdef __cplusplus |
403 | } |
421 | } |
404 | # endif |
422 | # endif |
405 | #endif |
423 | #endif |
406 | |
424 | |
… | |
… | |
430 | # ifdef __cplusplus |
448 | # ifdef __cplusplus |
431 | } |
449 | } |
432 | # endif |
450 | # endif |
433 | #endif |
451 | #endif |
434 | |
452 | |
435 | |
|
|
436 | /**/ |
453 | /**/ |
437 | |
454 | |
438 | #if EV_VERIFY >= 3 |
455 | #if EV_VERIFY >= 3 |
439 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
456 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
440 | #else |
457 | #else |
441 | # define EV_FREQUENT_CHECK do { } while (0) |
458 | # define EV_FREQUENT_CHECK do { } while (0) |
442 | #endif |
459 | #endif |
443 | |
460 | |
444 | /* |
461 | /* |
… | |
… | |
452 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
469 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
453 | |
470 | |
454 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
471 | #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) */ |
472 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
456 | |
473 | |
|
|
474 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
475 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
476 | |
457 | #if __GNUC__ >= 4 |
477 | #if __GNUC__ >= 4 |
458 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
478 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
459 | # define noinline __attribute__ ((noinline)) |
479 | # define noinline __attribute__ ((noinline)) |
460 | #else |
480 | #else |
461 | # define expect(expr,value) (expr) |
481 | # define expect(expr,value) (expr) |
… | |
… | |
467 | |
487 | |
468 | #define expect_false(expr) expect ((expr) != 0, 0) |
488 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_true(expr) expect ((expr) != 0, 1) |
489 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define inline_size static inline |
490 | #define inline_size static inline |
471 | |
491 | |
472 | #if EV_MINIMAL |
492 | #if EV_FEATURE_CODE |
|
|
493 | # define inline_speed static inline |
|
|
494 | #else |
473 | # define inline_speed static noinline |
495 | # define inline_speed static noinline |
474 | #else |
|
|
475 | # define inline_speed static inline |
|
|
476 | #endif |
496 | #endif |
477 | |
497 | |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
498 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | |
499 | |
480 | #if EV_MINPRI == EV_MAXPRI |
500 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
493 | #define ev_active(w) ((W)(w))->active |
513 | #define ev_active(w) ((W)(w))->active |
494 | #define ev_at(w) ((WT)(w))->at |
514 | #define ev_at(w) ((WT)(w))->at |
495 | |
515 | |
496 | #if EV_USE_REALTIME |
516 | #if EV_USE_REALTIME |
497 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
517 | /* 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 */ |
518 | /* giving it a reasonably high chance of working on typical architectures */ |
499 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
519 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
500 | #endif |
520 | #endif |
501 | |
521 | |
502 | #if EV_USE_MONOTONIC |
522 | #if EV_USE_MONOTONIC |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
523 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
516 | #ifdef _WIN32 |
536 | #ifdef _WIN32 |
517 | # include "ev_win32.c" |
537 | # include "ev_win32.c" |
518 | #endif |
538 | #endif |
519 | |
539 | |
520 | /*****************************************************************************/ |
540 | /*****************************************************************************/ |
|
|
541 | |
|
|
542 | #if EV_AVOID_STDIO |
|
|
543 | static void noinline |
|
|
544 | ev_printerr (const char *msg) |
|
|
545 | { |
|
|
546 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
547 | } |
|
|
548 | #endif |
521 | |
549 | |
522 | static void (*syserr_cb)(const char *msg); |
550 | static void (*syserr_cb)(const char *msg); |
523 | |
551 | |
524 | void |
552 | void |
525 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
553 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
535 | |
563 | |
536 | if (syserr_cb) |
564 | if (syserr_cb) |
537 | syserr_cb (msg); |
565 | syserr_cb (msg); |
538 | else |
566 | else |
539 | { |
567 | { |
|
|
568 | #if EV_AVOID_STDIO |
|
|
569 | const char *err = strerror (errno); |
|
|
570 | |
|
|
571 | ev_printerr (msg); |
|
|
572 | ev_printerr (": "); |
|
|
573 | ev_printerr (err); |
|
|
574 | ev_printerr ("\n"); |
|
|
575 | #else |
540 | perror (msg); |
576 | perror (msg); |
|
|
577 | #endif |
541 | abort (); |
578 | abort (); |
542 | } |
579 | } |
543 | } |
580 | } |
544 | |
581 | |
545 | static void * |
582 | static void * |
546 | ev_realloc_emul (void *ptr, long size) |
583 | ev_realloc_emul (void *ptr, long size) |
547 | { |
584 | { |
|
|
585 | #if __GLIBC__ |
|
|
586 | return realloc (ptr, size); |
|
|
587 | #else |
548 | /* some systems, notably openbsd and darwin, fail to properly |
588 | /* some systems, notably openbsd and darwin, fail to properly |
549 | * implement realloc (x, 0) (as required by both ansi c-98 and |
589 | * implement realloc (x, 0) (as required by both ansi c-89 and |
550 | * the single unix specification, so work around them here. |
590 | * the single unix specification, so work around them here. |
551 | */ |
591 | */ |
552 | |
592 | |
553 | if (size) |
593 | if (size) |
554 | return realloc (ptr, size); |
594 | return realloc (ptr, size); |
555 | |
595 | |
556 | free (ptr); |
596 | free (ptr); |
557 | return 0; |
597 | return 0; |
|
|
598 | #endif |
558 | } |
599 | } |
559 | |
600 | |
560 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
601 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
561 | |
602 | |
562 | void |
603 | void |
… | |
… | |
570 | { |
611 | { |
571 | ptr = alloc (ptr, size); |
612 | ptr = alloc (ptr, size); |
572 | |
613 | |
573 | if (!ptr && size) |
614 | if (!ptr && size) |
574 | { |
615 | { |
|
|
616 | #if EV_AVOID_STDIO |
|
|
617 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
618 | #else |
575 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
619 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
620 | #endif |
576 | abort (); |
621 | abort (); |
577 | } |
622 | } |
578 | |
623 | |
579 | return ptr; |
624 | return ptr; |
580 | } |
625 | } |
… | |
… | |
662 | |
707 | |
663 | static int ev_default_loop_ptr; |
708 | static int ev_default_loop_ptr; |
664 | |
709 | |
665 | #endif |
710 | #endif |
666 | |
711 | |
667 | #if EV_MINIMAL < 2 |
712 | #if EV_FEATURE_API |
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
713 | # 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) |
714 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
715 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
671 | #else |
716 | #else |
672 | # define EV_RELEASE_CB (void)0 |
717 | # define EV_RELEASE_CB (void)0 |
… | |
… | |
726 | if (delay > 0.) |
771 | if (delay > 0.) |
727 | { |
772 | { |
728 | #if EV_USE_NANOSLEEP |
773 | #if EV_USE_NANOSLEEP |
729 | struct timespec ts; |
774 | struct timespec ts; |
730 | |
775 | |
731 | ts.tv_sec = (time_t)delay; |
776 | EV_TS_SET (ts, delay); |
732 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
733 | |
|
|
734 | nanosleep (&ts, 0); |
777 | nanosleep (&ts, 0); |
735 | #elif defined(_WIN32) |
778 | #elif defined(_WIN32) |
736 | Sleep ((unsigned long)(delay * 1e3)); |
779 | Sleep ((unsigned long)(delay * 1e3)); |
737 | #else |
780 | #else |
738 | struct timeval tv; |
781 | struct timeval tv; |
739 | |
782 | |
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 */ |
783 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
744 | /* something not guaranteed by newer posix versions, but guaranteed */ |
784 | /* something not guaranteed by newer posix versions, but guaranteed */ |
745 | /* by older ones */ |
785 | /* by older ones */ |
|
|
786 | EV_TV_SET (tv, delay); |
746 | select (0, 0, 0, 0, &tv); |
787 | select (0, 0, 0, 0, &tv); |
747 | #endif |
788 | #endif |
748 | } |
789 | } |
749 | } |
790 | } |
750 | |
791 | |
751 | /*****************************************************************************/ |
792 | /*****************************************************************************/ |
752 | |
793 | |
753 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
794 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
754 | |
795 | |
755 | /* find a suitable new size for the given array, */ |
796 | /* find a suitable new size for the given array, */ |
756 | /* hopefully by rounding to a ncie-to-malloc size */ |
797 | /* hopefully by rounding to a nice-to-malloc size */ |
757 | inline_size int |
798 | inline_size int |
758 | array_nextsize (int elem, int cur, int cnt) |
799 | array_nextsize (int elem, int cur, int cnt) |
759 | { |
800 | { |
760 | int ncur = cur + 1; |
801 | int ncur = cur + 1; |
761 | |
802 | |
… | |
… | |
857 | } |
898 | } |
858 | |
899 | |
859 | /*****************************************************************************/ |
900 | /*****************************************************************************/ |
860 | |
901 | |
861 | inline_speed void |
902 | inline_speed void |
862 | fd_event_nc (EV_P_ int fd, int revents) |
903 | fd_event_nocheck (EV_P_ int fd, int revents) |
863 | { |
904 | { |
864 | ANFD *anfd = anfds + fd; |
905 | ANFD *anfd = anfds + fd; |
865 | ev_io *w; |
906 | ev_io *w; |
866 | |
907 | |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
908 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
879 | fd_event (EV_P_ int fd, int revents) |
920 | fd_event (EV_P_ int fd, int revents) |
880 | { |
921 | { |
881 | ANFD *anfd = anfds + fd; |
922 | ANFD *anfd = anfds + fd; |
882 | |
923 | |
883 | if (expect_true (!anfd->reify)) |
924 | if (expect_true (!anfd->reify)) |
884 | fd_event_nc (EV_A_ fd, revents); |
925 | fd_event_nocheck (EV_A_ fd, revents); |
885 | } |
926 | } |
886 | |
927 | |
887 | void |
928 | void |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
929 | ev_feed_fd_event (EV_P_ int fd, int revents) |
889 | { |
930 | { |
890 | if (fd >= 0 && fd < anfdmax) |
931 | if (fd >= 0 && fd < anfdmax) |
891 | fd_event_nc (EV_A_ fd, revents); |
932 | fd_event_nocheck (EV_A_ fd, revents); |
892 | } |
933 | } |
893 | |
934 | |
894 | /* make sure the external fd watch events are in-sync */ |
935 | /* make sure the external fd watch events are in-sync */ |
895 | /* with the kernel/libev internal state */ |
936 | /* with the kernel/libev internal state */ |
896 | inline_size void |
937 | inline_size void |
… | |
… | |
959 | ev_io_stop (EV_A_ w); |
1000 | ev_io_stop (EV_A_ w); |
960 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1001 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
961 | } |
1002 | } |
962 | } |
1003 | } |
963 | |
1004 | |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
1005 | /* check whether the given fd is actually valid, for error recovery */ |
965 | inline_size int |
1006 | inline_size int |
966 | fd_valid (int fd) |
1007 | fd_valid (int fd) |
967 | { |
1008 | { |
968 | #ifdef _WIN32 |
1009 | #ifdef _WIN32 |
969 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1010 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
… | |
… | |
1011 | anfds [fd].emask = 0; |
1052 | anfds [fd].emask = 0; |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1053 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1013 | } |
1054 | } |
1014 | } |
1055 | } |
1015 | |
1056 | |
|
|
1057 | /* used to prepare libev internal fd's */ |
|
|
1058 | /* this is not fork-safe */ |
|
|
1059 | inline_speed void |
|
|
1060 | fd_intern (int fd) |
|
|
1061 | { |
|
|
1062 | #ifdef _WIN32 |
|
|
1063 | unsigned long arg = 1; |
|
|
1064 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1065 | #else |
|
|
1066 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1067 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1068 | #endif |
|
|
1069 | } |
|
|
1070 | |
1016 | /*****************************************************************************/ |
1071 | /*****************************************************************************/ |
1017 | |
1072 | |
1018 | /* |
1073 | /* |
1019 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1074 | * 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 |
1075 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1021 | * the branching factor of the d-tree. |
1076 | * the branching factor of the d-tree. |
1022 | */ |
1077 | */ |
1023 | |
1078 | |
1024 | /* |
1079 | /* |
… | |
… | |
1172 | |
1227 | |
1173 | static ANSIG signals [EV_NSIG - 1]; |
1228 | static ANSIG signals [EV_NSIG - 1]; |
1174 | |
1229 | |
1175 | /*****************************************************************************/ |
1230 | /*****************************************************************************/ |
1176 | |
1231 | |
1177 | /* used to prepare libev internal fd's */ |
1232 | #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 | |
1233 | |
1191 | static void noinline |
1234 | static void noinline |
1192 | evpipe_init (EV_P) |
1235 | evpipe_init (EV_P) |
1193 | { |
1236 | { |
1194 | if (!ev_is_active (&pipe_w)) |
1237 | if (!ev_is_active (&pipe_w)) |
1195 | { |
1238 | { |
1196 | #if EV_USE_EVENTFD |
1239 | # if EV_USE_EVENTFD |
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1240 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1198 | if (evfd < 0 && errno == EINVAL) |
1241 | if (evfd < 0 && errno == EINVAL) |
1199 | evfd = eventfd (0, 0); |
1242 | evfd = eventfd (0, 0); |
1200 | |
1243 | |
1201 | if (evfd >= 0) |
1244 | if (evfd >= 0) |
… | |
… | |
1203 | evpipe [0] = -1; |
1246 | evpipe [0] = -1; |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1247 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
1248 | ev_io_set (&pipe_w, evfd, EV_READ); |
1206 | } |
1249 | } |
1207 | else |
1250 | else |
1208 | #endif |
1251 | # endif |
1209 | { |
1252 | { |
1210 | while (pipe (evpipe)) |
1253 | while (pipe (evpipe)) |
1211 | ev_syserr ("(libev) error creating signal/async pipe"); |
1254 | ev_syserr ("(libev) error creating signal/async pipe"); |
1212 | |
1255 | |
1213 | fd_intern (evpipe [0]); |
1256 | fd_intern (evpipe [0]); |
… | |
… | |
1224 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1267 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1225 | { |
1268 | { |
1226 | if (!*flag) |
1269 | if (!*flag) |
1227 | { |
1270 | { |
1228 | int old_errno = errno; /* save errno because write might clobber it */ |
1271 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1272 | char dummy; |
1229 | |
1273 | |
1230 | *flag = 1; |
1274 | *flag = 1; |
1231 | |
1275 | |
1232 | #if EV_USE_EVENTFD |
1276 | #if EV_USE_EVENTFD |
1233 | if (evfd >= 0) |
1277 | if (evfd >= 0) |
… | |
… | |
1235 | uint64_t counter = 1; |
1279 | uint64_t counter = 1; |
1236 | write (evfd, &counter, sizeof (uint64_t)); |
1280 | write (evfd, &counter, sizeof (uint64_t)); |
1237 | } |
1281 | } |
1238 | else |
1282 | else |
1239 | #endif |
1283 | #endif |
|
|
1284 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1285 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1286 | /* so when you think this write should be a send instead, please find out */ |
|
|
1287 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1288 | /* tell me. thank you. */ |
1240 | write (evpipe [1], &old_errno, 1); |
1289 | write (evpipe [1], &dummy, 1); |
1241 | |
1290 | |
1242 | errno = old_errno; |
1291 | errno = old_errno; |
1243 | } |
1292 | } |
1244 | } |
1293 | } |
1245 | |
1294 | |
… | |
… | |
1258 | } |
1307 | } |
1259 | else |
1308 | else |
1260 | #endif |
1309 | #endif |
1261 | { |
1310 | { |
1262 | char dummy; |
1311 | char dummy; |
|
|
1312 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1263 | read (evpipe [0], &dummy, 1); |
1313 | read (evpipe [0], &dummy, 1); |
1264 | } |
1314 | } |
1265 | |
1315 | |
1266 | if (sig_pending) |
1316 | if (sig_pending) |
1267 | { |
1317 | { |
… | |
… | |
1346 | break; |
1396 | break; |
1347 | } |
1397 | } |
1348 | } |
1398 | } |
1349 | #endif |
1399 | #endif |
1350 | |
1400 | |
|
|
1401 | #endif |
|
|
1402 | |
1351 | /*****************************************************************************/ |
1403 | /*****************************************************************************/ |
1352 | |
1404 | |
|
|
1405 | #if EV_CHILD_ENABLE |
1353 | static WL childs [EV_PID_HASHSIZE]; |
1406 | static WL childs [EV_PID_HASHSIZE]; |
1354 | |
|
|
1355 | #ifndef _WIN32 |
|
|
1356 | |
1407 | |
1357 | static ev_signal childev; |
1408 | static ev_signal childev; |
1358 | |
1409 | |
1359 | #ifndef WIFCONTINUED |
1410 | #ifndef WIFCONTINUED |
1360 | # define WIFCONTINUED(status) 0 |
1411 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1365 | child_reap (EV_P_ int chain, int pid, int status) |
1416 | child_reap (EV_P_ int chain, int pid, int status) |
1366 | { |
1417 | { |
1367 | ev_child *w; |
1418 | ev_child *w; |
1368 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1419 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1369 | |
1420 | |
1370 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1421 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1371 | { |
1422 | { |
1372 | if ((w->pid == pid || !w->pid) |
1423 | if ((w->pid == pid || !w->pid) |
1373 | && (!traced || (w->flags & 1))) |
1424 | && (!traced || (w->flags & 1))) |
1374 | { |
1425 | { |
1375 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1426 | 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 */ |
1451 | /* 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 */ |
1452 | /* 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); |
1453 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1403 | |
1454 | |
1404 | child_reap (EV_A_ pid, pid, status); |
1455 | child_reap (EV_A_ pid, pid, status); |
1405 | if (EV_PID_HASHSIZE > 1) |
1456 | if ((EV_PID_HASHSIZE) > 1) |
1406 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1457 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1407 | } |
1458 | } |
1408 | |
1459 | |
1409 | #endif |
1460 | #endif |
1410 | |
1461 | |
… | |
… | |
1477 | #ifdef __APPLE__ |
1528 | #ifdef __APPLE__ |
1478 | /* only select works correctly on that "unix-certified" platform */ |
1529 | /* only select works correctly on that "unix-certified" platform */ |
1479 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1530 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1480 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1531 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1481 | #endif |
1532 | #endif |
|
|
1533 | #ifdef __FreeBSD__ |
|
|
1534 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1535 | #endif |
1482 | |
1536 | |
1483 | return flags; |
1537 | return flags; |
1484 | } |
1538 | } |
1485 | |
1539 | |
1486 | unsigned int |
1540 | unsigned int |
… | |
… | |
1499 | ev_backend (EV_P) |
1553 | ev_backend (EV_P) |
1500 | { |
1554 | { |
1501 | return backend; |
1555 | return backend; |
1502 | } |
1556 | } |
1503 | |
1557 | |
1504 | #if EV_MINIMAL < 2 |
1558 | #if EV_FEATURE_API |
1505 | unsigned int |
1559 | unsigned int |
1506 | ev_loop_count (EV_P) |
1560 | ev_iteration (EV_P) |
1507 | { |
1561 | { |
1508 | return loop_count; |
1562 | return loop_count; |
1509 | } |
1563 | } |
1510 | |
1564 | |
1511 | unsigned int |
1565 | unsigned int |
1512 | ev_loop_depth (EV_P) |
1566 | ev_depth (EV_P) |
1513 | { |
1567 | { |
1514 | return loop_depth; |
1568 | return loop_depth; |
1515 | } |
1569 | } |
1516 | |
1570 | |
1517 | void |
1571 | void |
… | |
… | |
1589 | |
1643 | |
1590 | ev_rt_now = ev_time (); |
1644 | ev_rt_now = ev_time (); |
1591 | mn_now = get_clock (); |
1645 | mn_now = get_clock (); |
1592 | now_floor = mn_now; |
1646 | now_floor = mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
1647 | rtmn_diff = ev_rt_now - mn_now; |
1594 | #if EV_MINIMAL < 2 |
1648 | #if EV_FEATURE_API |
1595 | invoke_cb = ev_invoke_pending; |
1649 | invoke_cb = ev_invoke_pending; |
1596 | #endif |
1650 | #endif |
1597 | |
1651 | |
1598 | io_blocktime = 0.; |
1652 | io_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
1653 | timeout_blocktime = 0.; |
… | |
… | |
1629 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1683 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1630 | #endif |
1684 | #endif |
1631 | |
1685 | |
1632 | ev_prepare_init (&pending_w, pendingcb); |
1686 | ev_prepare_init (&pending_w, pendingcb); |
1633 | |
1687 | |
|
|
1688 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1634 | ev_init (&pipe_w, pipecb); |
1689 | ev_init (&pipe_w, pipecb); |
1635 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1690 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1691 | #endif |
1636 | } |
1692 | } |
1637 | } |
1693 | } |
1638 | |
1694 | |
1639 | /* free up a loop structure */ |
1695 | /* free up a loop structure */ |
1640 | static void noinline |
1696 | static void noinline |
… | |
… | |
1758 | { |
1814 | { |
1759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1815 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1760 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1816 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1761 | } |
1817 | } |
1762 | |
1818 | |
|
|
1819 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1763 | evpipe_init (EV_A); |
1820 | evpipe_init (EV_A); |
1764 | /* now iterate over everything, in case we missed something */ |
1821 | /* now iterate over everything, in case we missed something */ |
1765 | pipecb (EV_A_ &pipe_w, EV_READ); |
1822 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1823 | #endif |
1766 | } |
1824 | } |
1767 | |
1825 | |
1768 | postfork = 0; |
1826 | postfork = 0; |
1769 | } |
1827 | } |
1770 | |
1828 | |
… | |
… | |
1832 | verify_watcher (EV_A_ ws [cnt]); |
1890 | verify_watcher (EV_A_ ws [cnt]); |
1833 | } |
1891 | } |
1834 | } |
1892 | } |
1835 | #endif |
1893 | #endif |
1836 | |
1894 | |
1837 | #if EV_MINIMAL < 2 |
1895 | #if EV_FEATURE_API |
1838 | void |
1896 | void |
1839 | ev_loop_verify (EV_P) |
1897 | ev_verify (EV_P) |
1840 | { |
1898 | { |
1841 | #if EV_VERIFY |
1899 | #if EV_VERIFY |
1842 | int i; |
1900 | int i; |
1843 | WL w; |
1901 | WL w; |
1844 | |
1902 | |
… | |
… | |
1883 | #if EV_ASYNC_ENABLE |
1941 | #if EV_ASYNC_ENABLE |
1884 | assert (asyncmax >= asynccnt); |
1942 | assert (asyncmax >= asynccnt); |
1885 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1943 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1886 | #endif |
1944 | #endif |
1887 | |
1945 | |
|
|
1946 | #if EV_PREPARE_ENABLE |
1888 | assert (preparemax >= preparecnt); |
1947 | assert (preparemax >= preparecnt); |
1889 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1948 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1949 | #endif |
1890 | |
1950 | |
|
|
1951 | #if EV_CHECK_ENABLE |
1891 | assert (checkmax >= checkcnt); |
1952 | assert (checkmax >= checkcnt); |
1892 | array_verify (EV_A_ (W *)checks, checkcnt); |
1953 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1954 | #endif |
1893 | |
1955 | |
1894 | # if 0 |
1956 | # if 0 |
|
|
1957 | #if EV_CHILD_ENABLE |
1895 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1958 | 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) |
1959 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1960 | #endif |
1897 | # endif |
1961 | # endif |
1898 | #endif |
1962 | #endif |
1899 | } |
1963 | } |
1900 | #endif |
1964 | #endif |
1901 | |
1965 | |
… | |
… | |
1917 | |
1981 | |
1918 | loop_init (EV_A_ flags); |
1982 | loop_init (EV_A_ flags); |
1919 | |
1983 | |
1920 | if (ev_backend (EV_A)) |
1984 | if (ev_backend (EV_A)) |
1921 | { |
1985 | { |
1922 | #ifndef _WIN32 |
1986 | #if EV_CHILD_ENABLE |
1923 | ev_signal_init (&childev, childcb, SIGCHLD); |
1987 | ev_signal_init (&childev, childcb, SIGCHLD); |
1924 | ev_set_priority (&childev, EV_MAXPRI); |
1988 | ev_set_priority (&childev, EV_MAXPRI); |
1925 | ev_signal_start (EV_A_ &childev); |
1989 | ev_signal_start (EV_A_ &childev); |
1926 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1990 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1927 | #endif |
1991 | #endif |
… | |
… | |
1940 | EV_P = ev_default_loop_ptr; |
2004 | EV_P = ev_default_loop_ptr; |
1941 | #endif |
2005 | #endif |
1942 | |
2006 | |
1943 | ev_default_loop_ptr = 0; |
2007 | ev_default_loop_ptr = 0; |
1944 | |
2008 | |
1945 | #ifndef _WIN32 |
2009 | #if EV_CHILD_ENABLE |
1946 | ev_ref (EV_A); /* child watcher */ |
2010 | ev_ref (EV_A); /* child watcher */ |
1947 | ev_signal_stop (EV_A_ &childev); |
2011 | ev_signal_stop (EV_A_ &childev); |
1948 | #endif |
2012 | #endif |
1949 | |
2013 | |
1950 | loop_destroy (EV_A); |
2014 | loop_destroy (EV_A); |
… | |
… | |
2056 | EV_FREQUENT_CHECK; |
2120 | EV_FREQUENT_CHECK; |
2057 | feed_reverse (EV_A_ (W)w); |
2121 | feed_reverse (EV_A_ (W)w); |
2058 | } |
2122 | } |
2059 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2123 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2060 | |
2124 | |
2061 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2125 | feed_reverse_done (EV_A_ EV_TIMER); |
2062 | } |
2126 | } |
2063 | } |
2127 | } |
2064 | |
2128 | |
2065 | #if EV_PERIODIC_ENABLE |
2129 | #if EV_PERIODIC_ENABLE |
2066 | /* make periodics pending */ |
2130 | /* make periodics pending */ |
… | |
… | |
2119 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2183 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2120 | } |
2184 | } |
2121 | } |
2185 | } |
2122 | |
2186 | |
2123 | /* simply recalculate all periodics */ |
2187 | /* simply recalculate all periodics */ |
2124 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2188 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2125 | static void noinline |
2189 | static void noinline |
2126 | periodics_reschedule (EV_P) |
2190 | periodics_reschedule (EV_P) |
2127 | { |
2191 | { |
2128 | int i; |
2192 | int i; |
2129 | |
2193 | |
… | |
… | |
2227 | } |
2291 | } |
2228 | |
2292 | |
2229 | void |
2293 | void |
2230 | ev_loop (EV_P_ int flags) |
2294 | ev_loop (EV_P_ int flags) |
2231 | { |
2295 | { |
2232 | #if EV_MINIMAL < 2 |
2296 | #if EV_FEATURE_API |
2233 | ++loop_depth; |
2297 | ++loop_depth; |
2234 | #endif |
2298 | #endif |
2235 | |
2299 | |
2236 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2300 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2237 | |
2301 | |
… | |
… | |
2240 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2304 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2241 | |
2305 | |
2242 | do |
2306 | do |
2243 | { |
2307 | { |
2244 | #if EV_VERIFY >= 2 |
2308 | #if EV_VERIFY >= 2 |
2245 | ev_loop_verify (EV_A); |
2309 | ev_verify (EV_A); |
2246 | #endif |
2310 | #endif |
2247 | |
2311 | |
2248 | #ifndef _WIN32 |
2312 | #ifndef _WIN32 |
2249 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2313 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2250 | if (expect_false (getpid () != curpid)) |
2314 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2262 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2326 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2263 | EV_INVOKE_PENDING; |
2327 | EV_INVOKE_PENDING; |
2264 | } |
2328 | } |
2265 | #endif |
2329 | #endif |
2266 | |
2330 | |
|
|
2331 | #if EV_PREPARE_ENABLE |
2267 | /* queue prepare watchers (and execute them) */ |
2332 | /* queue prepare watchers (and execute them) */ |
2268 | if (expect_false (preparecnt)) |
2333 | if (expect_false (preparecnt)) |
2269 | { |
2334 | { |
2270 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2335 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2271 | EV_INVOKE_PENDING; |
2336 | EV_INVOKE_PENDING; |
2272 | } |
2337 | } |
|
|
2338 | #endif |
2273 | |
2339 | |
2274 | if (expect_false (loop_done)) |
2340 | if (expect_false (loop_done)) |
2275 | break; |
2341 | break; |
2276 | |
2342 | |
2277 | /* we might have forked, so reify kernel state if necessary */ |
2343 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2328 | waittime -= sleeptime; |
2394 | waittime -= sleeptime; |
2329 | } |
2395 | } |
2330 | } |
2396 | } |
2331 | } |
2397 | } |
2332 | |
2398 | |
2333 | #if EV_MINIMAL < 2 |
2399 | #if EV_FEATURE_API |
2334 | ++loop_count; |
2400 | ++loop_count; |
2335 | #endif |
2401 | #endif |
2336 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2402 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2337 | backend_poll (EV_A_ waittime); |
2403 | backend_poll (EV_A_ waittime); |
2338 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2404 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
… | |
… | |
2350 | #if EV_IDLE_ENABLE |
2416 | #if EV_IDLE_ENABLE |
2351 | /* queue idle watchers unless other events are pending */ |
2417 | /* queue idle watchers unless other events are pending */ |
2352 | idle_reify (EV_A); |
2418 | idle_reify (EV_A); |
2353 | #endif |
2419 | #endif |
2354 | |
2420 | |
|
|
2421 | #if EV_CHECK_ENABLE |
2355 | /* queue check watchers, to be executed first */ |
2422 | /* queue check watchers, to be executed first */ |
2356 | if (expect_false (checkcnt)) |
2423 | if (expect_false (checkcnt)) |
2357 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2424 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2425 | #endif |
2358 | |
2426 | |
2359 | EV_INVOKE_PENDING; |
2427 | EV_INVOKE_PENDING; |
2360 | } |
2428 | } |
2361 | while (expect_true ( |
2429 | while (expect_true ( |
2362 | activecnt |
2430 | activecnt |
… | |
… | |
2365 | )); |
2433 | )); |
2366 | |
2434 | |
2367 | if (loop_done == EVUNLOOP_ONE) |
2435 | if (loop_done == EVUNLOOP_ONE) |
2368 | loop_done = EVUNLOOP_CANCEL; |
2436 | loop_done = EVUNLOOP_CANCEL; |
2369 | |
2437 | |
2370 | #if EV_MINIMAL < 2 |
2438 | #if EV_FEATURE_API |
2371 | --loop_depth; |
2439 | --loop_depth; |
2372 | #endif |
2440 | #endif |
2373 | } |
2441 | } |
2374 | |
2442 | |
2375 | void |
2443 | void |
… | |
… | |
2501 | |
2569 | |
2502 | if (expect_false (ev_is_active (w))) |
2570 | if (expect_false (ev_is_active (w))) |
2503 | return; |
2571 | return; |
2504 | |
2572 | |
2505 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2573 | 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)))); |
2574 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2507 | |
2575 | |
2508 | EV_FREQUENT_CHECK; |
2576 | EV_FREQUENT_CHECK; |
2509 | |
2577 | |
2510 | ev_start (EV_A_ (W)w, 1); |
2578 | ev_start (EV_A_ (W)w, 1); |
2511 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2579 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2581 | timers [active] = timers [timercnt + HEAP0]; |
2649 | timers [active] = timers [timercnt + HEAP0]; |
2582 | adjustheap (timers, timercnt, active); |
2650 | adjustheap (timers, timercnt, active); |
2583 | } |
2651 | } |
2584 | } |
2652 | } |
2585 | |
2653 | |
2586 | EV_FREQUENT_CHECK; |
|
|
2587 | |
|
|
2588 | ev_at (w) -= mn_now; |
2654 | ev_at (w) -= mn_now; |
2589 | |
2655 | |
2590 | ev_stop (EV_A_ (W)w); |
2656 | ev_stop (EV_A_ (W)w); |
|
|
2657 | |
|
|
2658 | EV_FREQUENT_CHECK; |
2591 | } |
2659 | } |
2592 | |
2660 | |
2593 | void noinline |
2661 | void noinline |
2594 | ev_timer_again (EV_P_ ev_timer *w) |
2662 | ev_timer_again (EV_P_ ev_timer *w) |
2595 | { |
2663 | { |
… | |
… | |
2674 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2742 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2675 | adjustheap (periodics, periodiccnt, active); |
2743 | adjustheap (periodics, periodiccnt, active); |
2676 | } |
2744 | } |
2677 | } |
2745 | } |
2678 | |
2746 | |
2679 | EV_FREQUENT_CHECK; |
|
|
2680 | |
|
|
2681 | ev_stop (EV_A_ (W)w); |
2747 | ev_stop (EV_A_ (W)w); |
|
|
2748 | |
|
|
2749 | EV_FREQUENT_CHECK; |
2682 | } |
2750 | } |
2683 | |
2751 | |
2684 | void noinline |
2752 | void noinline |
2685 | ev_periodic_again (EV_P_ ev_periodic *w) |
2753 | ev_periodic_again (EV_P_ ev_periodic *w) |
2686 | { |
2754 | { |
… | |
… | |
2691 | #endif |
2759 | #endif |
2692 | |
2760 | |
2693 | #ifndef SA_RESTART |
2761 | #ifndef SA_RESTART |
2694 | # define SA_RESTART 0 |
2762 | # define SA_RESTART 0 |
2695 | #endif |
2763 | #endif |
|
|
2764 | |
|
|
2765 | #if EV_SIGNAL_ENABLE |
2696 | |
2766 | |
2697 | void noinline |
2767 | void noinline |
2698 | ev_signal_start (EV_P_ ev_signal *w) |
2768 | ev_signal_start (EV_P_ ev_signal *w) |
2699 | { |
2769 | { |
2700 | if (expect_false (ev_is_active (w))) |
2770 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2807 | } |
2877 | } |
2808 | |
2878 | |
2809 | EV_FREQUENT_CHECK; |
2879 | EV_FREQUENT_CHECK; |
2810 | } |
2880 | } |
2811 | |
2881 | |
|
|
2882 | #endif |
|
|
2883 | |
|
|
2884 | #if EV_CHILD_ENABLE |
|
|
2885 | |
2812 | void |
2886 | void |
2813 | ev_child_start (EV_P_ ev_child *w) |
2887 | ev_child_start (EV_P_ ev_child *w) |
2814 | { |
2888 | { |
2815 | #if EV_MULTIPLICITY |
2889 | #if EV_MULTIPLICITY |
2816 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2890 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
… | |
… | |
2819 | return; |
2893 | return; |
2820 | |
2894 | |
2821 | EV_FREQUENT_CHECK; |
2895 | EV_FREQUENT_CHECK; |
2822 | |
2896 | |
2823 | ev_start (EV_A_ (W)w, 1); |
2897 | ev_start (EV_A_ (W)w, 1); |
2824 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2898 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2825 | |
2899 | |
2826 | EV_FREQUENT_CHECK; |
2900 | EV_FREQUENT_CHECK; |
2827 | } |
2901 | } |
2828 | |
2902 | |
2829 | void |
2903 | void |
… | |
… | |
2833 | if (expect_false (!ev_is_active (w))) |
2907 | if (expect_false (!ev_is_active (w))) |
2834 | return; |
2908 | return; |
2835 | |
2909 | |
2836 | EV_FREQUENT_CHECK; |
2910 | EV_FREQUENT_CHECK; |
2837 | |
2911 | |
2838 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2912 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2839 | ev_stop (EV_A_ (W)w); |
2913 | ev_stop (EV_A_ (W)w); |
2840 | |
2914 | |
2841 | EV_FREQUENT_CHECK; |
2915 | EV_FREQUENT_CHECK; |
2842 | } |
2916 | } |
|
|
2917 | |
|
|
2918 | #endif |
2843 | |
2919 | |
2844 | #if EV_STAT_ENABLE |
2920 | #if EV_STAT_ENABLE |
2845 | |
2921 | |
2846 | # ifdef _WIN32 |
2922 | # ifdef _WIN32 |
2847 | # undef lstat |
2923 | # undef lstat |
… | |
… | |
2853 | #define MIN_STAT_INTERVAL 0.1074891 |
2929 | #define MIN_STAT_INTERVAL 0.1074891 |
2854 | |
2930 | |
2855 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2931 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2856 | |
2932 | |
2857 | #if EV_USE_INOTIFY |
2933 | #if EV_USE_INOTIFY |
2858 | # define EV_INOTIFY_BUFSIZE 8192 |
2934 | |
|
|
2935 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2936 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2859 | |
2937 | |
2860 | static void noinline |
2938 | static void noinline |
2861 | infy_add (EV_P_ ev_stat *w) |
2939 | infy_add (EV_P_ ev_stat *w) |
2862 | { |
2940 | { |
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); |
2941 | 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)); |
2990 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2913 | } |
2991 | } |
2914 | } |
2992 | } |
2915 | |
2993 | |
2916 | if (w->wd >= 0) |
2994 | if (w->wd >= 0) |
2917 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2995 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2918 | |
2996 | |
2919 | /* now re-arm timer, if required */ |
2997 | /* now re-arm timer, if required */ |
2920 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2998 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2921 | ev_timer_again (EV_A_ &w->timer); |
2999 | ev_timer_again (EV_A_ &w->timer); |
2922 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3000 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
… | |
… | |
2930 | |
3008 | |
2931 | if (wd < 0) |
3009 | if (wd < 0) |
2932 | return; |
3010 | return; |
2933 | |
3011 | |
2934 | w->wd = -2; |
3012 | w->wd = -2; |
2935 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3013 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2936 | wlist_del (&fs_hash [slot].head, (WL)w); |
3014 | wlist_del (&fs_hash [slot].head, (WL)w); |
2937 | |
3015 | |
2938 | /* remove this watcher, if others are watching it, they will rearm */ |
3016 | /* remove this watcher, if others are watching it, they will rearm */ |
2939 | inotify_rm_watch (fs_fd, wd); |
3017 | inotify_rm_watch (fs_fd, wd); |
2940 | } |
3018 | } |
… | |
… | |
2942 | static void noinline |
3020 | static void noinline |
2943 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3021 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2944 | { |
3022 | { |
2945 | if (slot < 0) |
3023 | if (slot < 0) |
2946 | /* overflow, need to check for all hash slots */ |
3024 | /* overflow, need to check for all hash slots */ |
2947 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3025 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2948 | infy_wd (EV_A_ slot, wd, ev); |
3026 | infy_wd (EV_A_ slot, wd, ev); |
2949 | else |
3027 | else |
2950 | { |
3028 | { |
2951 | WL w_; |
3029 | WL w_; |
2952 | |
3030 | |
2953 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3031 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2954 | { |
3032 | { |
2955 | ev_stat *w = (ev_stat *)w_; |
3033 | ev_stat *w = (ev_stat *)w_; |
2956 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3034 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2957 | |
3035 | |
2958 | if (w->wd == wd || wd == -1) |
3036 | if (w->wd == wd || wd == -1) |
2959 | { |
3037 | { |
2960 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3038 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2961 | { |
3039 | { |
2962 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3040 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2963 | w->wd = -1; |
3041 | w->wd = -1; |
2964 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3042 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2965 | } |
3043 | } |
2966 | |
3044 | |
2967 | stat_timer_cb (EV_A_ &w->timer, 0); |
3045 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2972 | |
3050 | |
2973 | static void |
3051 | static void |
2974 | infy_cb (EV_P_ ev_io *w, int revents) |
3052 | infy_cb (EV_P_ ev_io *w, int revents) |
2975 | { |
3053 | { |
2976 | char buf [EV_INOTIFY_BUFSIZE]; |
3054 | char buf [EV_INOTIFY_BUFSIZE]; |
2977 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2978 | int ofs; |
3055 | int ofs; |
2979 | int len = read (fs_fd, buf, sizeof (buf)); |
3056 | int len = read (fs_fd, buf, sizeof (buf)); |
2980 | |
3057 | |
2981 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3058 | for (ofs = 0; ofs < len; ) |
|
|
3059 | { |
|
|
3060 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2982 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3061 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3062 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3063 | } |
|
|
3064 | } |
|
|
3065 | |
|
|
3066 | inline_size unsigned int |
|
|
3067 | ev_linux_version (void) |
|
|
3068 | { |
|
|
3069 | struct utsname buf; |
|
|
3070 | unsigned int v; |
|
|
3071 | int i; |
|
|
3072 | char *p = buf.release; |
|
|
3073 | |
|
|
3074 | if (uname (&buf)) |
|
|
3075 | return 0; |
|
|
3076 | |
|
|
3077 | for (i = 3+1; --i; ) |
|
|
3078 | { |
|
|
3079 | unsigned int c = 0; |
|
|
3080 | |
|
|
3081 | for (;;) |
|
|
3082 | { |
|
|
3083 | if (*p >= '0' && *p <= '9') |
|
|
3084 | c = c * 10 + *p++ - '0'; |
|
|
3085 | else |
|
|
3086 | { |
|
|
3087 | p += *p == '.'; |
|
|
3088 | break; |
|
|
3089 | } |
|
|
3090 | } |
|
|
3091 | |
|
|
3092 | v = (v << 8) | c; |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | return v; |
2983 | } |
3096 | } |
2984 | |
3097 | |
2985 | inline_size void |
3098 | inline_size void |
2986 | check_2625 (EV_P) |
3099 | ev_check_2625 (EV_P) |
2987 | { |
3100 | { |
2988 | /* kernels < 2.6.25 are borked |
3101 | /* kernels < 2.6.25 are borked |
2989 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3102 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2990 | */ |
3103 | */ |
2991 | struct utsname buf; |
3104 | 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; |
3105 | return; |
3004 | |
3106 | |
3005 | fs_2625 = 1; |
3107 | fs_2625 = 1; |
3006 | } |
3108 | } |
3007 | |
3109 | |
… | |
… | |
3022 | if (fs_fd != -2) |
3124 | if (fs_fd != -2) |
3023 | return; |
3125 | return; |
3024 | |
3126 | |
3025 | fs_fd = -1; |
3127 | fs_fd = -1; |
3026 | |
3128 | |
3027 | check_2625 (EV_A); |
3129 | ev_check_2625 (EV_A); |
3028 | |
3130 | |
3029 | fs_fd = infy_newfd (); |
3131 | fs_fd = infy_newfd (); |
3030 | |
3132 | |
3031 | if (fs_fd >= 0) |
3133 | if (fs_fd >= 0) |
3032 | { |
3134 | { |
… | |
… | |
3057 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3159 | ev_io_set (&fs_w, fs_fd, EV_READ); |
3058 | ev_io_start (EV_A_ &fs_w); |
3160 | ev_io_start (EV_A_ &fs_w); |
3059 | ev_unref (EV_A); |
3161 | ev_unref (EV_A); |
3060 | } |
3162 | } |
3061 | |
3163 | |
3062 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3164 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
3063 | { |
3165 | { |
3064 | WL w_ = fs_hash [slot].head; |
3166 | WL w_ = fs_hash [slot].head; |
3065 | fs_hash [slot].head = 0; |
3167 | fs_hash [slot].head = 0; |
3066 | |
3168 | |
3067 | while (w_) |
3169 | while (w_) |
… | |
… | |
3242 | |
3344 | |
3243 | EV_FREQUENT_CHECK; |
3345 | EV_FREQUENT_CHECK; |
3244 | } |
3346 | } |
3245 | #endif |
3347 | #endif |
3246 | |
3348 | |
|
|
3349 | #if EV_PREPARE_ENABLE |
3247 | void |
3350 | void |
3248 | ev_prepare_start (EV_P_ ev_prepare *w) |
3351 | ev_prepare_start (EV_P_ ev_prepare *w) |
3249 | { |
3352 | { |
3250 | if (expect_false (ev_is_active (w))) |
3353 | if (expect_false (ev_is_active (w))) |
3251 | return; |
3354 | return; |
… | |
… | |
3277 | |
3380 | |
3278 | ev_stop (EV_A_ (W)w); |
3381 | ev_stop (EV_A_ (W)w); |
3279 | |
3382 | |
3280 | EV_FREQUENT_CHECK; |
3383 | EV_FREQUENT_CHECK; |
3281 | } |
3384 | } |
|
|
3385 | #endif |
3282 | |
3386 | |
|
|
3387 | #if EV_CHECK_ENABLE |
3283 | void |
3388 | void |
3284 | ev_check_start (EV_P_ ev_check *w) |
3389 | ev_check_start (EV_P_ ev_check *w) |
3285 | { |
3390 | { |
3286 | if (expect_false (ev_is_active (w))) |
3391 | if (expect_false (ev_is_active (w))) |
3287 | return; |
3392 | return; |
… | |
… | |
3313 | |
3418 | |
3314 | ev_stop (EV_A_ (W)w); |
3419 | ev_stop (EV_A_ (W)w); |
3315 | |
3420 | |
3316 | EV_FREQUENT_CHECK; |
3421 | EV_FREQUENT_CHECK; |
3317 | } |
3422 | } |
|
|
3423 | #endif |
3318 | |
3424 | |
3319 | #if EV_EMBED_ENABLE |
3425 | #if EV_EMBED_ENABLE |
3320 | void noinline |
3426 | void noinline |
3321 | ev_embed_sweep (EV_P_ ev_embed *w) |
3427 | ev_embed_sweep (EV_P_ ev_embed *w) |
3322 | { |
3428 | { |
… | |
… | |
3417 | |
3523 | |
3418 | ev_io_stop (EV_A_ &w->io); |
3524 | ev_io_stop (EV_A_ &w->io); |
3419 | ev_prepare_stop (EV_A_ &w->prepare); |
3525 | ev_prepare_stop (EV_A_ &w->prepare); |
3420 | ev_fork_stop (EV_A_ &w->fork); |
3526 | ev_fork_stop (EV_A_ &w->fork); |
3421 | |
3527 | |
|
|
3528 | ev_stop (EV_A_ (W)w); |
|
|
3529 | |
3422 | EV_FREQUENT_CHECK; |
3530 | EV_FREQUENT_CHECK; |
3423 | } |
3531 | } |
3424 | #endif |
3532 | #endif |
3425 | |
3533 | |
3426 | #if EV_FORK_ENABLE |
3534 | #if EV_FORK_ENABLE |
… | |
… | |
3552 | { |
3660 | { |
3553 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3661 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3554 | |
3662 | |
3555 | if (expect_false (!once)) |
3663 | if (expect_false (!once)) |
3556 | { |
3664 | { |
3557 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3665 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3558 | return; |
3666 | return; |
3559 | } |
3667 | } |
3560 | |
3668 | |
3561 | once->cb = cb; |
3669 | once->cb = cb; |
3562 | once->arg = arg; |
3670 | once->arg = arg; |
… | |
… | |
3649 | if (types & EV_ASYNC) |
3757 | if (types & EV_ASYNC) |
3650 | for (i = asynccnt; i--; ) |
3758 | for (i = asynccnt; i--; ) |
3651 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3759 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3652 | #endif |
3760 | #endif |
3653 | |
3761 | |
|
|
3762 | #if EV_PREPARE_ENABLE |
3654 | if (types & EV_PREPARE) |
3763 | if (types & EV_PREPARE) |
3655 | for (i = preparecnt; i--; ) |
3764 | for (i = preparecnt; i--; ) |
3656 | #if EV_EMBED_ENABLE |
3765 | # if EV_EMBED_ENABLE |
3657 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3766 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3658 | #endif |
3767 | # endif |
3659 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3768 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3769 | #endif |
3660 | |
3770 | |
|
|
3771 | #if EV_CHECK_ENABLE |
3661 | if (types & EV_CHECK) |
3772 | if (types & EV_CHECK) |
3662 | for (i = checkcnt; i--; ) |
3773 | for (i = checkcnt; i--; ) |
3663 | cb (EV_A_ EV_CHECK, checks [i]); |
3774 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3775 | #endif |
3664 | |
3776 | |
|
|
3777 | #if EV_SIGNAL_ENABLE |
3665 | if (types & EV_SIGNAL) |
3778 | if (types & EV_SIGNAL) |
3666 | for (i = 0; i < EV_NSIG - 1; ++i) |
3779 | for (i = 0; i < EV_NSIG - 1; ++i) |
3667 | for (wl = signals [i].head; wl; ) |
3780 | for (wl = signals [i].head; wl; ) |
3668 | { |
3781 | { |
3669 | wn = wl->next; |
3782 | wn = wl->next; |
3670 | cb (EV_A_ EV_SIGNAL, wl); |
3783 | cb (EV_A_ EV_SIGNAL, wl); |
3671 | wl = wn; |
3784 | wl = wn; |
3672 | } |
3785 | } |
|
|
3786 | #endif |
3673 | |
3787 | |
|
|
3788 | #if EV_CHILD_ENABLE |
3674 | if (types & EV_CHILD) |
3789 | if (types & EV_CHILD) |
3675 | for (i = EV_PID_HASHSIZE; i--; ) |
3790 | for (i = (EV_PID_HASHSIZE); i--; ) |
3676 | for (wl = childs [i]; wl; ) |
3791 | for (wl = childs [i]; wl; ) |
3677 | { |
3792 | { |
3678 | wn = wl->next; |
3793 | wn = wl->next; |
3679 | cb (EV_A_ EV_CHILD, wl); |
3794 | cb (EV_A_ EV_CHILD, wl); |
3680 | wl = wn; |
3795 | wl = wn; |
3681 | } |
3796 | } |
|
|
3797 | #endif |
3682 | /* EV_STAT 0x00001000 /* stat data changed */ |
3798 | /* EV_STAT 0x00001000 /* stat data changed */ |
3683 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3799 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3684 | } |
3800 | } |
3685 | #endif |
3801 | #endif |
3686 | |
3802 | |