1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 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 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
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|
55 | # ifndef EV_USE_REALTIME |
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|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
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|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
64 | # endif |
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|
65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
119 | # else |
133 | # else |
120 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
121 | # endif |
135 | # endif |
122 | # endif |
136 | # endif |
123 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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140 | # define EV_USE_SIGNALFD 1 |
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141 | # else |
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142 | # define EV_USE_SIGNALFD 0 |
|
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143 | # endif |
|
|
144 | # endif |
|
|
145 | |
124 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
125 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
126 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
127 | # else |
149 | # else |
128 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
129 | # endif |
151 | # endif |
130 | # endif |
152 | # endif |
131 | |
153 | |
132 | #endif |
154 | #endif |
133 | |
155 | |
134 | #include <math.h> |
156 | #include <math.h> |
135 | #include <stdlib.h> |
157 | #include <stdlib.h> |
136 | #include <fcntl.h> |
158 | #include <fcntl.h> |
… | |
… | |
154 | #ifndef _WIN32 |
176 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
177 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
178 | # include <sys/wait.h> |
157 | # include <unistd.h> |
179 | # include <unistd.h> |
158 | #else |
180 | #else |
|
|
181 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
182 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
183 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
186 | # endif |
164 | #endif |
187 | #endif |
165 | |
188 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
190 | |
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|
191 | /* try to deduce the maximum number of signals on this platform */ |
|
|
192 | #if defined (EV_NSIG) |
|
|
193 | /* use what's provided */ |
|
|
194 | #elif defined (NSIG) |
|
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195 | # define EV_NSIG (NSIG) |
|
|
196 | #elif defined(_NSIG) |
|
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197 | # define EV_NSIG (_NSIG) |
|
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198 | #elif defined (SIGMAX) |
|
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199 | # define EV_NSIG (SIGMAX+1) |
|
|
200 | #elif defined (SIG_MAX) |
|
|
201 | # define EV_NSIG (SIG_MAX+1) |
|
|
202 | #elif defined (_SIG_MAX) |
|
|
203 | # define EV_NSIG (_SIG_MAX+1) |
|
|
204 | #elif defined (MAXSIG) |
|
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205 | # define EV_NSIG (MAXSIG+1) |
|
|
206 | #elif defined (MAX_SIG) |
|
|
207 | # define EV_NSIG (MAX_SIG+1) |
|
|
208 | #elif defined (SIGARRAYSIZE) |
|
|
209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
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210 | #elif defined (_sys_nsig) |
|
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211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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212 | #else |
|
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213 | # error "unable to find value for NSIG, please report" |
|
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214 | /* to make it compile regardless, just remove the above line */ |
|
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215 | # define EV_NSIG 65 |
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216 | #endif |
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217 | |
|
|
218 | #ifndef EV_USE_CLOCK_SYSCALL |
|
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219 | # if __linux && __GLIBC__ >= 2 |
|
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220 | # define EV_USE_CLOCK_SYSCALL 1 |
|
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221 | # else |
|
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222 | # define EV_USE_CLOCK_SYSCALL 0 |
|
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223 | # endif |
|
|
224 | #endif |
|
|
225 | |
168 | #ifndef EV_USE_MONOTONIC |
226 | #ifndef EV_USE_MONOTONIC |
|
|
227 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
228 | # define EV_USE_MONOTONIC 1 |
|
|
229 | # else |
169 | # define EV_USE_MONOTONIC 0 |
230 | # define EV_USE_MONOTONIC 0 |
|
|
231 | # endif |
170 | #endif |
232 | #endif |
171 | |
233 | |
172 | #ifndef EV_USE_REALTIME |
234 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
236 | #endif |
175 | |
237 | |
176 | #ifndef EV_USE_NANOSLEEP |
238 | #ifndef EV_USE_NANOSLEEP |
|
|
239 | # if _POSIX_C_SOURCE >= 199309L |
|
|
240 | # define EV_USE_NANOSLEEP 1 |
|
|
241 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
242 | # define EV_USE_NANOSLEEP 0 |
|
|
243 | # endif |
178 | #endif |
244 | #endif |
179 | |
245 | |
180 | #ifndef EV_USE_SELECT |
246 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
247 | # define EV_USE_SELECT 1 |
182 | #endif |
248 | #endif |
… | |
… | |
235 | # else |
301 | # else |
236 | # define EV_USE_EVENTFD 0 |
302 | # define EV_USE_EVENTFD 0 |
237 | # endif |
303 | # endif |
238 | #endif |
304 | #endif |
239 | |
305 | |
|
|
306 | #ifndef EV_USE_SIGNALFD |
|
|
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
|
|
308 | # define EV_USE_SIGNALFD 1 |
|
|
309 | # else |
|
|
310 | # define EV_USE_SIGNALFD 0 |
|
|
311 | # endif |
|
|
312 | #endif |
|
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313 | |
|
|
314 | #if 0 /* debugging */ |
|
|
315 | # define EV_VERIFY 3 |
|
|
316 | # define EV_USE_4HEAP 1 |
|
|
317 | # define EV_HEAP_CACHE_AT 1 |
|
|
318 | #endif |
|
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319 | |
|
|
320 | #ifndef EV_VERIFY |
|
|
321 | # define EV_VERIFY !EV_MINIMAL |
|
|
322 | #endif |
|
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323 | |
|
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324 | #ifndef EV_USE_4HEAP |
|
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325 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
326 | #endif |
|
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327 | |
|
|
328 | #ifndef EV_HEAP_CACHE_AT |
|
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329 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
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330 | #endif |
|
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331 | |
|
|
332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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333 | /* which makes programs even slower. might work on other unices, too. */ |
|
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334 | #if EV_USE_CLOCK_SYSCALL |
|
|
335 | # include <syscall.h> |
|
|
336 | # ifdef SYS_clock_gettime |
|
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337 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
338 | # undef EV_USE_MONOTONIC |
|
|
339 | # define EV_USE_MONOTONIC 1 |
|
|
340 | # else |
|
|
341 | # undef EV_USE_CLOCK_SYSCALL |
|
|
342 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
343 | # endif |
|
|
344 | #endif |
|
|
345 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
346 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
241 | |
347 | |
242 | #ifndef CLOCK_MONOTONIC |
348 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
349 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
350 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
259 | # include <sys/select.h> |
365 | # include <sys/select.h> |
260 | # endif |
366 | # endif |
261 | #endif |
367 | #endif |
262 | |
368 | |
263 | #if EV_USE_INOTIFY |
369 | #if EV_USE_INOTIFY |
|
|
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
372 | # include <sys/inotify.h> |
|
|
373 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
374 | # ifndef IN_DONT_FOLLOW |
|
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375 | # undef EV_USE_INOTIFY |
|
|
376 | # define EV_USE_INOTIFY 0 |
|
|
377 | # endif |
265 | #endif |
378 | #endif |
266 | |
379 | |
267 | #if EV_SELECT_IS_WINSOCKET |
380 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
381 | # include <winsock.h> |
269 | #endif |
382 | #endif |
270 | |
383 | |
271 | #if EV_USE_EVENTFD |
384 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
385 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
386 | # include <stdint.h> |
|
|
387 | # ifndef EFD_NONBLOCK |
|
|
388 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
389 | # endif |
|
|
390 | # ifndef EFD_CLOEXEC |
|
|
391 | # ifdef O_CLOEXEC |
|
|
392 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
393 | # else |
|
|
394 | # define EFD_CLOEXEC 02000000 |
|
|
395 | # endif |
|
|
396 | # endif |
274 | # ifdef __cplusplus |
397 | # ifdef __cplusplus |
275 | extern "C" { |
398 | extern "C" { |
276 | # endif |
399 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
400 | int eventfd (unsigned int initval, int flags); |
278 | # ifdef __cplusplus |
401 | # ifdef __cplusplus |
279 | } |
402 | } |
280 | # endif |
403 | # endif |
281 | #endif |
404 | #endif |
282 | |
405 | |
|
|
406 | #if EV_USE_SIGNALFD |
|
|
407 | # include <sys/signalfd.h> |
|
|
408 | #endif |
|
|
409 | |
283 | /**/ |
410 | /**/ |
|
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411 | |
|
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412 | #if EV_VERIFY >= 3 |
|
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413 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
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414 | #else |
|
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415 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
416 | #endif |
284 | |
417 | |
285 | /* |
418 | /* |
286 | * This is used to avoid floating point rounding problems. |
419 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
420 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
421 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
315 | # define inline_speed static noinline |
448 | # define inline_speed static noinline |
316 | #else |
449 | #else |
317 | # define inline_speed static inline |
450 | # define inline_speed static inline |
318 | #endif |
451 | #endif |
319 | |
452 | |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
453 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
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454 | |
|
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455 | #if EV_MINPRI == EV_MAXPRI |
|
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456 | # define ABSPRI(w) (((W)w), 0) |
|
|
457 | #else |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
458 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
459 | #endif |
322 | |
460 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
461 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
462 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
463 | |
326 | typedef ev_watcher *W; |
464 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
465 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
466 | typedef ev_watcher_time *WT; |
329 | |
467 | |
330 | #if EV_USE_MONOTONIC |
468 | #define ev_active(w) ((W)(w))->active |
|
|
469 | #define ev_at(w) ((WT)(w))->at |
|
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470 | |
|
|
471 | #if EV_USE_REALTIME |
331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
472 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
332 | /* giving it a reasonably high chance of working on typical architetcures */ |
473 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
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474 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
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475 | #endif |
|
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476 | |
|
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477 | #if EV_USE_MONOTONIC |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
478 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
479 | #endif |
|
|
480 | |
|
|
481 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
482 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
483 | #endif |
|
|
484 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
485 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
|
|
486 | #endif |
|
|
487 | #ifndef EV_WIN32_CLOSE_FD |
|
|
488 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
334 | #endif |
489 | #endif |
335 | |
490 | |
336 | #ifdef _WIN32 |
491 | #ifdef _WIN32 |
337 | # include "ev_win32.c" |
492 | # include "ev_win32.c" |
338 | #endif |
493 | #endif |
… | |
… | |
346 | { |
501 | { |
347 | syserr_cb = cb; |
502 | syserr_cb = cb; |
348 | } |
503 | } |
349 | |
504 | |
350 | static void noinline |
505 | static void noinline |
351 | syserr (const char *msg) |
506 | ev_syserr (const char *msg) |
352 | { |
507 | { |
353 | if (!msg) |
508 | if (!msg) |
354 | msg = "(libev) system error"; |
509 | msg = "(libev) system error"; |
355 | |
510 | |
356 | if (syserr_cb) |
511 | if (syserr_cb) |
… | |
… | |
402 | #define ev_malloc(size) ev_realloc (0, (size)) |
557 | #define ev_malloc(size) ev_realloc (0, (size)) |
403 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
558 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
404 | |
559 | |
405 | /*****************************************************************************/ |
560 | /*****************************************************************************/ |
406 | |
561 | |
|
|
562 | /* set in reify when reification needed */ |
|
|
563 | #define EV_ANFD_REIFY 1 |
|
|
564 | |
|
|
565 | /* file descriptor info structure */ |
407 | typedef struct |
566 | typedef struct |
408 | { |
567 | { |
409 | WL head; |
568 | WL head; |
410 | unsigned char events; |
569 | unsigned char events; /* the events watched for */ |
|
|
570 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
571 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
411 | unsigned char reify; |
572 | unsigned char unused; |
|
|
573 | #if EV_USE_EPOLL |
|
|
574 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
575 | #endif |
412 | #if EV_SELECT_IS_WINSOCKET |
576 | #if EV_SELECT_IS_WINSOCKET |
413 | SOCKET handle; |
577 | SOCKET handle; |
414 | #endif |
578 | #endif |
415 | } ANFD; |
579 | } ANFD; |
416 | |
580 | |
|
|
581 | /* stores the pending event set for a given watcher */ |
417 | typedef struct |
582 | typedef struct |
418 | { |
583 | { |
419 | W w; |
584 | W w; |
420 | int events; |
585 | int events; /* the pending event set for the given watcher */ |
421 | } ANPENDING; |
586 | } ANPENDING; |
422 | |
587 | |
423 | #if EV_USE_INOTIFY |
588 | #if EV_USE_INOTIFY |
|
|
589 | /* hash table entry per inotify-id */ |
424 | typedef struct |
590 | typedef struct |
425 | { |
591 | { |
426 | WL head; |
592 | WL head; |
427 | } ANFS; |
593 | } ANFS; |
|
|
594 | #endif |
|
|
595 | |
|
|
596 | /* Heap Entry */ |
|
|
597 | #if EV_HEAP_CACHE_AT |
|
|
598 | /* a heap element */ |
|
|
599 | typedef struct { |
|
|
600 | ev_tstamp at; |
|
|
601 | WT w; |
|
|
602 | } ANHE; |
|
|
603 | |
|
|
604 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
605 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
606 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
607 | #else |
|
|
608 | /* a heap element */ |
|
|
609 | typedef WT ANHE; |
|
|
610 | |
|
|
611 | #define ANHE_w(he) (he) |
|
|
612 | #define ANHE_at(he) (he)->at |
|
|
613 | #define ANHE_at_cache(he) |
428 | #endif |
614 | #endif |
429 | |
615 | |
430 | #if EV_MULTIPLICITY |
616 | #if EV_MULTIPLICITY |
431 | |
617 | |
432 | struct ev_loop |
618 | struct ev_loop |
… | |
… | |
451 | |
637 | |
452 | static int ev_default_loop_ptr; |
638 | static int ev_default_loop_ptr; |
453 | |
639 | |
454 | #endif |
640 | #endif |
455 | |
641 | |
|
|
642 | #if EV_MINIMAL < 2 |
|
|
643 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
644 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
645 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
646 | #else |
|
|
647 | # define EV_RELEASE_CB (void)0 |
|
|
648 | # define EV_ACQUIRE_CB (void)0 |
|
|
649 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #define EVUNLOOP_RECURSE 0x80 |
|
|
653 | |
456 | /*****************************************************************************/ |
654 | /*****************************************************************************/ |
457 | |
655 | |
|
|
656 | #ifndef EV_HAVE_EV_TIME |
458 | ev_tstamp |
657 | ev_tstamp |
459 | ev_time (void) |
658 | ev_time (void) |
460 | { |
659 | { |
461 | #if EV_USE_REALTIME |
660 | #if EV_USE_REALTIME |
|
|
661 | if (expect_true (have_realtime)) |
|
|
662 | { |
462 | struct timespec ts; |
663 | struct timespec ts; |
463 | clock_gettime (CLOCK_REALTIME, &ts); |
664 | clock_gettime (CLOCK_REALTIME, &ts); |
464 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
665 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
465 | #else |
666 | } |
|
|
667 | #endif |
|
|
668 | |
466 | struct timeval tv; |
669 | struct timeval tv; |
467 | gettimeofday (&tv, 0); |
670 | gettimeofday (&tv, 0); |
468 | return tv.tv_sec + tv.tv_usec * 1e-6; |
671 | return tv.tv_sec + tv.tv_usec * 1e-6; |
469 | #endif |
|
|
470 | } |
672 | } |
|
|
673 | #endif |
471 | |
674 | |
472 | ev_tstamp inline_size |
675 | inline_size ev_tstamp |
473 | get_clock (void) |
676 | get_clock (void) |
474 | { |
677 | { |
475 | #if EV_USE_MONOTONIC |
678 | #if EV_USE_MONOTONIC |
476 | if (expect_true (have_monotonic)) |
679 | if (expect_true (have_monotonic)) |
477 | { |
680 | { |
… | |
… | |
510 | struct timeval tv; |
713 | struct timeval tv; |
511 | |
714 | |
512 | tv.tv_sec = (time_t)delay; |
715 | tv.tv_sec = (time_t)delay; |
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
716 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
514 | |
717 | |
|
|
718 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
719 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
720 | /* by older ones */ |
515 | select (0, 0, 0, 0, &tv); |
721 | select (0, 0, 0, 0, &tv); |
516 | #endif |
722 | #endif |
517 | } |
723 | } |
518 | } |
724 | } |
519 | |
725 | |
520 | /*****************************************************************************/ |
726 | /*****************************************************************************/ |
521 | |
727 | |
522 | int inline_size |
728 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
729 | |
|
|
730 | /* find a suitable new size for the given array, */ |
|
|
731 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
732 | inline_size int |
523 | array_nextsize (int elem, int cur, int cnt) |
733 | array_nextsize (int elem, int cur, int cnt) |
524 | { |
734 | { |
525 | int ncur = cur + 1; |
735 | int ncur = cur + 1; |
526 | |
736 | |
527 | do |
737 | do |
528 | ncur <<= 1; |
738 | ncur <<= 1; |
529 | while (cnt > ncur); |
739 | while (cnt > ncur); |
530 | |
740 | |
531 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
741 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
532 | if (elem * ncur > 4096) |
742 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
533 | { |
743 | { |
534 | ncur *= elem; |
744 | ncur *= elem; |
535 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
745 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
536 | ncur = ncur - sizeof (void *) * 4; |
746 | ncur = ncur - sizeof (void *) * 4; |
537 | ncur /= elem; |
747 | ncur /= elem; |
538 | } |
748 | } |
539 | |
749 | |
540 | return ncur; |
750 | return ncur; |
… | |
… | |
544 | array_realloc (int elem, void *base, int *cur, int cnt) |
754 | array_realloc (int elem, void *base, int *cur, int cnt) |
545 | { |
755 | { |
546 | *cur = array_nextsize (elem, *cur, cnt); |
756 | *cur = array_nextsize (elem, *cur, cnt); |
547 | return ev_realloc (base, elem * *cur); |
757 | return ev_realloc (base, elem * *cur); |
548 | } |
758 | } |
|
|
759 | |
|
|
760 | #define array_init_zero(base,count) \ |
|
|
761 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
549 | |
762 | |
550 | #define array_needsize(type,base,cur,cnt,init) \ |
763 | #define array_needsize(type,base,cur,cnt,init) \ |
551 | if (expect_false ((cnt) > (cur))) \ |
764 | if (expect_false ((cnt) > (cur))) \ |
552 | { \ |
765 | { \ |
553 | int ocur_ = (cur); \ |
766 | int ocur_ = (cur); \ |
… | |
… | |
565 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
778 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
566 | } |
779 | } |
567 | #endif |
780 | #endif |
568 | |
781 | |
569 | #define array_free(stem, idx) \ |
782 | #define array_free(stem, idx) \ |
570 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
783 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
571 | |
784 | |
572 | /*****************************************************************************/ |
785 | /*****************************************************************************/ |
|
|
786 | |
|
|
787 | /* dummy callback for pending events */ |
|
|
788 | static void noinline |
|
|
789 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
790 | { |
|
|
791 | } |
573 | |
792 | |
574 | void noinline |
793 | void noinline |
575 | ev_feed_event (EV_P_ void *w, int revents) |
794 | ev_feed_event (EV_P_ void *w, int revents) |
576 | { |
795 | { |
577 | W w_ = (W)w; |
796 | W w_ = (W)w; |
… | |
… | |
586 | pendings [pri][w_->pending - 1].w = w_; |
805 | pendings [pri][w_->pending - 1].w = w_; |
587 | pendings [pri][w_->pending - 1].events = revents; |
806 | pendings [pri][w_->pending - 1].events = revents; |
588 | } |
807 | } |
589 | } |
808 | } |
590 | |
809 | |
591 | void inline_speed |
810 | inline_speed void |
|
|
811 | feed_reverse (EV_P_ W w) |
|
|
812 | { |
|
|
813 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
814 | rfeeds [rfeedcnt++] = w; |
|
|
815 | } |
|
|
816 | |
|
|
817 | inline_size void |
|
|
818 | feed_reverse_done (EV_P_ int revents) |
|
|
819 | { |
|
|
820 | do |
|
|
821 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
822 | while (rfeedcnt); |
|
|
823 | } |
|
|
824 | |
|
|
825 | inline_speed void |
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
826 | queue_events (EV_P_ W *events, int eventcnt, int type) |
593 | { |
827 | { |
594 | int i; |
828 | int i; |
595 | |
829 | |
596 | for (i = 0; i < eventcnt; ++i) |
830 | for (i = 0; i < eventcnt; ++i) |
597 | ev_feed_event (EV_A_ events [i], type); |
831 | ev_feed_event (EV_A_ events [i], type); |
598 | } |
832 | } |
599 | |
833 | |
600 | /*****************************************************************************/ |
834 | /*****************************************************************************/ |
601 | |
835 | |
602 | void inline_size |
836 | inline_speed void |
603 | anfds_init (ANFD *base, int count) |
|
|
604 | { |
|
|
605 | while (count--) |
|
|
606 | { |
|
|
607 | base->head = 0; |
|
|
608 | base->events = EV_NONE; |
|
|
609 | base->reify = 0; |
|
|
610 | |
|
|
611 | ++base; |
|
|
612 | } |
|
|
613 | } |
|
|
614 | |
|
|
615 | void inline_speed |
|
|
616 | fd_event (EV_P_ int fd, int revents) |
837 | fd_event_nc (EV_P_ int fd, int revents) |
617 | { |
838 | { |
618 | ANFD *anfd = anfds + fd; |
839 | ANFD *anfd = anfds + fd; |
619 | ev_io *w; |
840 | ev_io *w; |
620 | |
841 | |
621 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
842 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
625 | if (ev) |
846 | if (ev) |
626 | ev_feed_event (EV_A_ (W)w, ev); |
847 | ev_feed_event (EV_A_ (W)w, ev); |
627 | } |
848 | } |
628 | } |
849 | } |
629 | |
850 | |
|
|
851 | /* do not submit kernel events for fds that have reify set */ |
|
|
852 | /* because that means they changed while we were polling for new events */ |
|
|
853 | inline_speed void |
|
|
854 | fd_event (EV_P_ int fd, int revents) |
|
|
855 | { |
|
|
856 | ANFD *anfd = anfds + fd; |
|
|
857 | |
|
|
858 | if (expect_true (!anfd->reify)) |
|
|
859 | fd_event_nc (EV_A_ fd, revents); |
|
|
860 | } |
|
|
861 | |
630 | void |
862 | void |
631 | ev_feed_fd_event (EV_P_ int fd, int revents) |
863 | ev_feed_fd_event (EV_P_ int fd, int revents) |
632 | { |
864 | { |
633 | if (fd >= 0 && fd < anfdmax) |
865 | if (fd >= 0 && fd < anfdmax) |
634 | fd_event (EV_A_ fd, revents); |
866 | fd_event_nc (EV_A_ fd, revents); |
635 | } |
867 | } |
636 | |
868 | |
637 | void inline_size |
869 | /* make sure the external fd watch events are in-sync */ |
|
|
870 | /* with the kernel/libev internal state */ |
|
|
871 | inline_size void |
638 | fd_reify (EV_P) |
872 | fd_reify (EV_P) |
639 | { |
873 | { |
640 | int i; |
874 | int i; |
641 | |
875 | |
642 | for (i = 0; i < fdchangecnt; ++i) |
876 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
651 | events |= (unsigned char)w->events; |
885 | events |= (unsigned char)w->events; |
652 | |
886 | |
653 | #if EV_SELECT_IS_WINSOCKET |
887 | #if EV_SELECT_IS_WINSOCKET |
654 | if (events) |
888 | if (events) |
655 | { |
889 | { |
656 | unsigned long argp; |
890 | unsigned long arg; |
657 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
891 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
659 | #else |
|
|
660 | anfd->handle = _get_osfhandle (fd); |
|
|
661 | #endif |
|
|
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
892 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
663 | } |
893 | } |
664 | #endif |
894 | #endif |
665 | |
895 | |
666 | { |
896 | { |
667 | unsigned char o_events = anfd->events; |
897 | unsigned char o_events = anfd->events; |
668 | unsigned char o_reify = anfd->reify; |
898 | unsigned char o_reify = anfd->reify; |
669 | |
899 | |
670 | anfd->reify = 0; |
900 | anfd->reify = 0; |
671 | anfd->events = events; |
901 | anfd->events = events; |
672 | |
902 | |
673 | if (o_events != events || o_reify & EV_IOFDSET) |
903 | if (o_events != events || o_reify & EV__IOFDSET) |
674 | backend_modify (EV_A_ fd, o_events, events); |
904 | backend_modify (EV_A_ fd, o_events, events); |
675 | } |
905 | } |
676 | } |
906 | } |
677 | |
907 | |
678 | fdchangecnt = 0; |
908 | fdchangecnt = 0; |
679 | } |
909 | } |
680 | |
910 | |
681 | void inline_size |
911 | /* something about the given fd changed */ |
|
|
912 | inline_size void |
682 | fd_change (EV_P_ int fd, int flags) |
913 | fd_change (EV_P_ int fd, int flags) |
683 | { |
914 | { |
684 | unsigned char reify = anfds [fd].reify; |
915 | unsigned char reify = anfds [fd].reify; |
685 | anfds [fd].reify |= flags; |
916 | anfds [fd].reify |= flags; |
686 | |
917 | |
… | |
… | |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
921 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
691 | fdchanges [fdchangecnt - 1] = fd; |
922 | fdchanges [fdchangecnt - 1] = fd; |
692 | } |
923 | } |
693 | } |
924 | } |
694 | |
925 | |
695 | void inline_speed |
926 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
927 | inline_speed void |
696 | fd_kill (EV_P_ int fd) |
928 | fd_kill (EV_P_ int fd) |
697 | { |
929 | { |
698 | ev_io *w; |
930 | ev_io *w; |
699 | |
931 | |
700 | while ((w = (ev_io *)anfds [fd].head)) |
932 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
702 | ev_io_stop (EV_A_ w); |
934 | ev_io_stop (EV_A_ w); |
703 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
935 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
704 | } |
936 | } |
705 | } |
937 | } |
706 | |
938 | |
707 | int inline_size |
939 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
940 | inline_size int |
708 | fd_valid (int fd) |
941 | fd_valid (int fd) |
709 | { |
942 | { |
710 | #ifdef _WIN32 |
943 | #ifdef _WIN32 |
711 | return _get_osfhandle (fd) != -1; |
944 | return _get_osfhandle (fd) != -1; |
712 | #else |
945 | #else |
… | |
… | |
720 | { |
953 | { |
721 | int fd; |
954 | int fd; |
722 | |
955 | |
723 | for (fd = 0; fd < anfdmax; ++fd) |
956 | for (fd = 0; fd < anfdmax; ++fd) |
724 | if (anfds [fd].events) |
957 | if (anfds [fd].events) |
725 | if (!fd_valid (fd) == -1 && errno == EBADF) |
958 | if (!fd_valid (fd) && errno == EBADF) |
726 | fd_kill (EV_A_ fd); |
959 | fd_kill (EV_A_ fd); |
727 | } |
960 | } |
728 | |
961 | |
729 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
962 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
730 | static void noinline |
963 | static void noinline |
… | |
… | |
734 | |
967 | |
735 | for (fd = anfdmax; fd--; ) |
968 | for (fd = anfdmax; fd--; ) |
736 | if (anfds [fd].events) |
969 | if (anfds [fd].events) |
737 | { |
970 | { |
738 | fd_kill (EV_A_ fd); |
971 | fd_kill (EV_A_ fd); |
739 | return; |
972 | break; |
740 | } |
973 | } |
741 | } |
974 | } |
742 | |
975 | |
743 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
976 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
744 | static void noinline |
977 | static void noinline |
… | |
… | |
748 | |
981 | |
749 | for (fd = 0; fd < anfdmax; ++fd) |
982 | for (fd = 0; fd < anfdmax; ++fd) |
750 | if (anfds [fd].events) |
983 | if (anfds [fd].events) |
751 | { |
984 | { |
752 | anfds [fd].events = 0; |
985 | anfds [fd].events = 0; |
|
|
986 | anfds [fd].emask = 0; |
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
987 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
754 | } |
988 | } |
755 | } |
989 | } |
756 | |
990 | |
757 | /*****************************************************************************/ |
991 | /*****************************************************************************/ |
758 | |
992 | |
759 | void inline_speed |
993 | /* |
760 | upheap (WT *heap, int k) |
994 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
761 | { |
995 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
762 | WT w = heap [k]; |
996 | * the branching factor of the d-tree. |
|
|
997 | */ |
763 | |
998 | |
764 | while (k) |
999 | /* |
765 | { |
1000 | * at the moment we allow libev the luxury of two heaps, |
766 | int p = (k - 1) >> 1; |
1001 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1002 | * which is more cache-efficient. |
|
|
1003 | * the difference is about 5% with 50000+ watchers. |
|
|
1004 | */ |
|
|
1005 | #if EV_USE_4HEAP |
767 | |
1006 | |
768 | if (heap [p]->at <= w->at) |
1007 | #define DHEAP 4 |
|
|
1008 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1009 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1010 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1011 | |
|
|
1012 | /* away from the root */ |
|
|
1013 | inline_speed void |
|
|
1014 | downheap (ANHE *heap, int N, int k) |
|
|
1015 | { |
|
|
1016 | ANHE he = heap [k]; |
|
|
1017 | ANHE *E = heap + N + HEAP0; |
|
|
1018 | |
|
|
1019 | for (;;) |
|
|
1020 | { |
|
|
1021 | ev_tstamp minat; |
|
|
1022 | ANHE *minpos; |
|
|
1023 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1024 | |
|
|
1025 | /* find minimum child */ |
|
|
1026 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1027 | { |
|
|
1028 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1029 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1030 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1031 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1032 | } |
|
|
1033 | else if (pos < E) |
|
|
1034 | { |
|
|
1035 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1036 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1037 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1038 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1039 | } |
|
|
1040 | else |
769 | break; |
1041 | break; |
770 | |
1042 | |
|
|
1043 | if (ANHE_at (he) <= minat) |
|
|
1044 | break; |
|
|
1045 | |
|
|
1046 | heap [k] = *minpos; |
|
|
1047 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1048 | |
|
|
1049 | k = minpos - heap; |
|
|
1050 | } |
|
|
1051 | |
|
|
1052 | heap [k] = he; |
|
|
1053 | ev_active (ANHE_w (he)) = k; |
|
|
1054 | } |
|
|
1055 | |
|
|
1056 | #else /* 4HEAP */ |
|
|
1057 | |
|
|
1058 | #define HEAP0 1 |
|
|
1059 | #define HPARENT(k) ((k) >> 1) |
|
|
1060 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1061 | |
|
|
1062 | /* away from the root */ |
|
|
1063 | inline_speed void |
|
|
1064 | downheap (ANHE *heap, int N, int k) |
|
|
1065 | { |
|
|
1066 | ANHE he = heap [k]; |
|
|
1067 | |
|
|
1068 | for (;;) |
|
|
1069 | { |
|
|
1070 | int c = k << 1; |
|
|
1071 | |
|
|
1072 | if (c >= N + HEAP0) |
|
|
1073 | break; |
|
|
1074 | |
|
|
1075 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1076 | ? 1 : 0; |
|
|
1077 | |
|
|
1078 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1079 | break; |
|
|
1080 | |
|
|
1081 | heap [k] = heap [c]; |
|
|
1082 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1083 | |
|
|
1084 | k = c; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | heap [k] = he; |
|
|
1088 | ev_active (ANHE_w (he)) = k; |
|
|
1089 | } |
|
|
1090 | #endif |
|
|
1091 | |
|
|
1092 | /* towards the root */ |
|
|
1093 | inline_speed void |
|
|
1094 | upheap (ANHE *heap, int k) |
|
|
1095 | { |
|
|
1096 | ANHE he = heap [k]; |
|
|
1097 | |
|
|
1098 | for (;;) |
|
|
1099 | { |
|
|
1100 | int p = HPARENT (k); |
|
|
1101 | |
|
|
1102 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1103 | break; |
|
|
1104 | |
771 | heap [k] = heap [p]; |
1105 | heap [k] = heap [p]; |
772 | ((W)heap [k])->active = k + 1; |
1106 | ev_active (ANHE_w (heap [k])) = k; |
773 | k = p; |
1107 | k = p; |
774 | } |
1108 | } |
775 | |
1109 | |
776 | heap [k] = w; |
1110 | heap [k] = he; |
777 | ((W)heap [k])->active = k + 1; |
1111 | ev_active (ANHE_w (he)) = k; |
778 | } |
1112 | } |
779 | |
1113 | |
780 | void inline_speed |
1114 | /* move an element suitably so it is in a correct place */ |
781 | downheap (WT *heap, int N, int k) |
1115 | inline_size void |
782 | { |
|
|
783 | WT w = heap [k]; |
|
|
784 | |
|
|
785 | for (;;) |
|
|
786 | { |
|
|
787 | int c = (k << 1) + 1; |
|
|
788 | |
|
|
789 | if (c >= N) |
|
|
790 | break; |
|
|
791 | |
|
|
792 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
793 | ? 1 : 0; |
|
|
794 | |
|
|
795 | if (w->at <= heap [c]->at) |
|
|
796 | break; |
|
|
797 | |
|
|
798 | heap [k] = heap [c]; |
|
|
799 | ((W)heap [k])->active = k + 1; |
|
|
800 | |
|
|
801 | k = c; |
|
|
802 | } |
|
|
803 | |
|
|
804 | heap [k] = w; |
|
|
805 | ((W)heap [k])->active = k + 1; |
|
|
806 | } |
|
|
807 | |
|
|
808 | void inline_size |
|
|
809 | adjustheap (WT *heap, int N, int k) |
1116 | adjustheap (ANHE *heap, int N, int k) |
810 | { |
1117 | { |
|
|
1118 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
811 | upheap (heap, k); |
1119 | upheap (heap, k); |
|
|
1120 | else |
812 | downheap (heap, N, k); |
1121 | downheap (heap, N, k); |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1125 | inline_size void |
|
|
1126 | reheap (ANHE *heap, int N) |
|
|
1127 | { |
|
|
1128 | int i; |
|
|
1129 | |
|
|
1130 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1131 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1132 | for (i = 0; i < N; ++i) |
|
|
1133 | upheap (heap, i + HEAP0); |
813 | } |
1134 | } |
814 | |
1135 | |
815 | /*****************************************************************************/ |
1136 | /*****************************************************************************/ |
816 | |
1137 | |
|
|
1138 | /* associate signal watchers to a signal signal */ |
817 | typedef struct |
1139 | typedef struct |
818 | { |
1140 | { |
|
|
1141 | EV_ATOMIC_T pending; |
|
|
1142 | #if EV_MULTIPLICITY |
|
|
1143 | EV_P; |
|
|
1144 | #endif |
819 | WL head; |
1145 | WL head; |
820 | EV_ATOMIC_T gotsig; |
|
|
821 | } ANSIG; |
1146 | } ANSIG; |
822 | |
1147 | |
823 | static ANSIG *signals; |
1148 | static ANSIG signals [EV_NSIG - 1]; |
824 | static int signalmax; |
|
|
825 | |
|
|
826 | static EV_ATOMIC_T gotsig; |
|
|
827 | |
|
|
828 | void inline_size |
|
|
829 | signals_init (ANSIG *base, int count) |
|
|
830 | { |
|
|
831 | while (count--) |
|
|
832 | { |
|
|
833 | base->head = 0; |
|
|
834 | base->gotsig = 0; |
|
|
835 | |
|
|
836 | ++base; |
|
|
837 | } |
|
|
838 | } |
|
|
839 | |
1149 | |
840 | /*****************************************************************************/ |
1150 | /*****************************************************************************/ |
841 | |
1151 | |
842 | void inline_speed |
1152 | /* used to prepare libev internal fd's */ |
|
|
1153 | /* this is not fork-safe */ |
|
|
1154 | inline_speed void |
843 | fd_intern (int fd) |
1155 | fd_intern (int fd) |
844 | { |
1156 | { |
845 | #ifdef _WIN32 |
1157 | #ifdef _WIN32 |
846 | int arg = 1; |
1158 | unsigned long arg = 1; |
847 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1159 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
848 | #else |
1160 | #else |
849 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1161 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
850 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1162 | fcntl (fd, F_SETFL, O_NONBLOCK); |
851 | #endif |
1163 | #endif |
852 | } |
1164 | } |
853 | |
1165 | |
854 | static void noinline |
1166 | static void noinline |
855 | evpipe_init (EV_P) |
1167 | evpipe_init (EV_P) |
856 | { |
1168 | { |
857 | if (!ev_is_active (&pipeev)) |
1169 | if (!ev_is_active (&pipe_w)) |
858 | { |
1170 | { |
859 | #if EV_USE_EVENTFD |
1171 | #if EV_USE_EVENTFD |
|
|
1172 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1173 | if (evfd < 0 && errno == EINVAL) |
860 | if ((evfd = eventfd (0, 0)) >= 0) |
1174 | evfd = eventfd (0, 0); |
|
|
1175 | |
|
|
1176 | if (evfd >= 0) |
861 | { |
1177 | { |
862 | evpipe [0] = -1; |
1178 | evpipe [0] = -1; |
863 | fd_intern (evfd); |
1179 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
864 | ev_io_set (&pipeev, evfd, EV_READ); |
1180 | ev_io_set (&pipe_w, evfd, EV_READ); |
865 | } |
1181 | } |
866 | else |
1182 | else |
867 | #endif |
1183 | #endif |
868 | { |
1184 | { |
869 | while (pipe (evpipe)) |
1185 | while (pipe (evpipe)) |
870 | syserr ("(libev) error creating signal/async pipe"); |
1186 | ev_syserr ("(libev) error creating signal/async pipe"); |
871 | |
1187 | |
872 | fd_intern (evpipe [0]); |
1188 | fd_intern (evpipe [0]); |
873 | fd_intern (evpipe [1]); |
1189 | fd_intern (evpipe [1]); |
874 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1190 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
875 | } |
1191 | } |
876 | |
1192 | |
877 | ev_io_start (EV_A_ &pipeev); |
1193 | ev_io_start (EV_A_ &pipe_w); |
878 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1194 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
879 | } |
1195 | } |
880 | } |
1196 | } |
881 | |
1197 | |
882 | void inline_size |
1198 | inline_size void |
883 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1199 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
884 | { |
1200 | { |
885 | if (!*flag) |
1201 | if (!*flag) |
886 | { |
1202 | { |
887 | int old_errno = errno; /* save errno because write might clobber it */ |
1203 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
900 | |
1216 | |
901 | errno = old_errno; |
1217 | errno = old_errno; |
902 | } |
1218 | } |
903 | } |
1219 | } |
904 | |
1220 | |
|
|
1221 | /* called whenever the libev signal pipe */ |
|
|
1222 | /* got some events (signal, async) */ |
905 | static void |
1223 | static void |
906 | pipecb (EV_P_ ev_io *iow, int revents) |
1224 | pipecb (EV_P_ ev_io *iow, int revents) |
907 | { |
1225 | { |
|
|
1226 | int i; |
|
|
1227 | |
908 | #if EV_USE_EVENTFD |
1228 | #if EV_USE_EVENTFD |
909 | if (evfd >= 0) |
1229 | if (evfd >= 0) |
910 | { |
1230 | { |
911 | uint64_t counter = 1; |
1231 | uint64_t counter; |
912 | read (evfd, &counter, sizeof (uint64_t)); |
1232 | read (evfd, &counter, sizeof (uint64_t)); |
913 | } |
1233 | } |
914 | else |
1234 | else |
915 | #endif |
1235 | #endif |
916 | { |
1236 | { |
917 | char dummy; |
1237 | char dummy; |
918 | read (evpipe [0], &dummy, 1); |
1238 | read (evpipe [0], &dummy, 1); |
919 | } |
1239 | } |
920 | |
1240 | |
921 | if (gotsig && ev_is_default_loop (EV_A)) |
1241 | if (sig_pending) |
922 | { |
1242 | { |
923 | int signum; |
1243 | sig_pending = 0; |
924 | gotsig = 0; |
|
|
925 | |
1244 | |
926 | for (signum = signalmax; signum--; ) |
1245 | for (i = EV_NSIG - 1; i--; ) |
927 | if (signals [signum].gotsig) |
1246 | if (expect_false (signals [i].pending)) |
928 | ev_feed_signal_event (EV_A_ signum + 1); |
1247 | ev_feed_signal_event (EV_A_ i + 1); |
929 | } |
1248 | } |
930 | |
1249 | |
931 | #if EV_ASYNC_ENABLE |
1250 | #if EV_ASYNC_ENABLE |
932 | if (gotasync) |
1251 | if (async_pending) |
933 | { |
1252 | { |
934 | int i; |
1253 | async_pending = 0; |
935 | gotasync = 0; |
|
|
936 | |
1254 | |
937 | for (i = asynccnt; i--; ) |
1255 | for (i = asynccnt; i--; ) |
938 | if (asyncs [i]->sent) |
1256 | if (asyncs [i]->sent) |
939 | { |
1257 | { |
940 | asyncs [i]->sent = 0; |
1258 | asyncs [i]->sent = 0; |
… | |
… | |
948 | |
1266 | |
949 | static void |
1267 | static void |
950 | ev_sighandler (int signum) |
1268 | ev_sighandler (int signum) |
951 | { |
1269 | { |
952 | #if EV_MULTIPLICITY |
1270 | #if EV_MULTIPLICITY |
953 | struct ev_loop *loop = &default_loop_struct; |
1271 | EV_P = signals [signum - 1].loop; |
954 | #endif |
1272 | #endif |
955 | |
1273 | |
956 | #if _WIN32 |
1274 | #if _WIN32 |
957 | signal (signum, ev_sighandler); |
1275 | signal (signum, ev_sighandler); |
958 | #endif |
1276 | #endif |
959 | |
1277 | |
960 | signals [signum - 1].gotsig = 1; |
1278 | signals [signum - 1].pending = 1; |
961 | evpipe_write (EV_A_ &gotsig); |
1279 | evpipe_write (EV_A_ &sig_pending); |
962 | } |
1280 | } |
963 | |
1281 | |
964 | void noinline |
1282 | void noinline |
965 | ev_feed_signal_event (EV_P_ int signum) |
1283 | ev_feed_signal_event (EV_P_ int signum) |
966 | { |
1284 | { |
967 | WL w; |
1285 | WL w; |
968 | |
1286 | |
|
|
1287 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1288 | return; |
|
|
1289 | |
|
|
1290 | --signum; |
|
|
1291 | |
969 | #if EV_MULTIPLICITY |
1292 | #if EV_MULTIPLICITY |
970 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1293 | /* it is permissible to try to feed a signal to the wrong loop */ |
971 | #endif |
1294 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
972 | |
1295 | |
973 | --signum; |
1296 | if (expect_false (signals [signum].loop != EV_A)) |
974 | |
|
|
975 | if (signum < 0 || signum >= signalmax) |
|
|
976 | return; |
1297 | return; |
|
|
1298 | #endif |
977 | |
1299 | |
978 | signals [signum].gotsig = 0; |
1300 | signals [signum].pending = 0; |
979 | |
1301 | |
980 | for (w = signals [signum].head; w; w = w->next) |
1302 | for (w = signals [signum].head; w; w = w->next) |
981 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1303 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
982 | } |
1304 | } |
983 | |
1305 | |
|
|
1306 | #if EV_USE_SIGNALFD |
|
|
1307 | static void |
|
|
1308 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1309 | { |
|
|
1310 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1311 | |
|
|
1312 | for (;;) |
|
|
1313 | { |
|
|
1314 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1315 | |
|
|
1316 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1317 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1318 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1319 | |
|
|
1320 | if (res < (ssize_t)sizeof (si)) |
|
|
1321 | break; |
|
|
1322 | } |
|
|
1323 | } |
|
|
1324 | #endif |
|
|
1325 | |
984 | /*****************************************************************************/ |
1326 | /*****************************************************************************/ |
985 | |
1327 | |
986 | static WL childs [EV_PID_HASHSIZE]; |
1328 | static WL childs [EV_PID_HASHSIZE]; |
987 | |
1329 | |
988 | #ifndef _WIN32 |
1330 | #ifndef _WIN32 |
… | |
… | |
991 | |
1333 | |
992 | #ifndef WIFCONTINUED |
1334 | #ifndef WIFCONTINUED |
993 | # define WIFCONTINUED(status) 0 |
1335 | # define WIFCONTINUED(status) 0 |
994 | #endif |
1336 | #endif |
995 | |
1337 | |
996 | void inline_speed |
1338 | /* handle a single child status event */ |
|
|
1339 | inline_speed void |
997 | child_reap (EV_P_ int chain, int pid, int status) |
1340 | child_reap (EV_P_ int chain, int pid, int status) |
998 | { |
1341 | { |
999 | ev_child *w; |
1342 | ev_child *w; |
1000 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1343 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1001 | |
1344 | |
… | |
… | |
1014 | |
1357 | |
1015 | #ifndef WCONTINUED |
1358 | #ifndef WCONTINUED |
1016 | # define WCONTINUED 0 |
1359 | # define WCONTINUED 0 |
1017 | #endif |
1360 | #endif |
1018 | |
1361 | |
|
|
1362 | /* called on sigchld etc., calls waitpid */ |
1019 | static void |
1363 | static void |
1020 | childcb (EV_P_ ev_signal *sw, int revents) |
1364 | childcb (EV_P_ ev_signal *sw, int revents) |
1021 | { |
1365 | { |
1022 | int pid, status; |
1366 | int pid, status; |
1023 | |
1367 | |
… | |
… | |
1104 | /* kqueue is borked on everything but netbsd apparently */ |
1448 | /* kqueue is borked on everything but netbsd apparently */ |
1105 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1449 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1106 | flags &= ~EVBACKEND_KQUEUE; |
1450 | flags &= ~EVBACKEND_KQUEUE; |
1107 | #endif |
1451 | #endif |
1108 | #ifdef __APPLE__ |
1452 | #ifdef __APPLE__ |
1109 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1453 | /* only select works correctly on that "unix-certified" platform */ |
1110 | flags &= ~EVBACKEND_POLL; |
1454 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1455 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1111 | #endif |
1456 | #endif |
1112 | |
1457 | |
1113 | return flags; |
1458 | return flags; |
1114 | } |
1459 | } |
1115 | |
1460 | |
… | |
… | |
1129 | ev_backend (EV_P) |
1474 | ev_backend (EV_P) |
1130 | { |
1475 | { |
1131 | return backend; |
1476 | return backend; |
1132 | } |
1477 | } |
1133 | |
1478 | |
|
|
1479 | #if EV_MINIMAL < 2 |
1134 | unsigned int |
1480 | unsigned int |
1135 | ev_loop_count (EV_P) |
1481 | ev_loop_count (EV_P) |
1136 | { |
1482 | { |
1137 | return loop_count; |
1483 | return loop_count; |
1138 | } |
1484 | } |
1139 | |
1485 | |
|
|
1486 | unsigned int |
|
|
1487 | ev_loop_depth (EV_P) |
|
|
1488 | { |
|
|
1489 | return loop_depth; |
|
|
1490 | } |
|
|
1491 | |
1140 | void |
1492 | void |
1141 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1493 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1142 | { |
1494 | { |
1143 | io_blocktime = interval; |
1495 | io_blocktime = interval; |
1144 | } |
1496 | } |
… | |
… | |
1147 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1499 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1148 | { |
1500 | { |
1149 | timeout_blocktime = interval; |
1501 | timeout_blocktime = interval; |
1150 | } |
1502 | } |
1151 | |
1503 | |
|
|
1504 | void |
|
|
1505 | ev_set_userdata (EV_P_ void *data) |
|
|
1506 | { |
|
|
1507 | userdata = data; |
|
|
1508 | } |
|
|
1509 | |
|
|
1510 | void * |
|
|
1511 | ev_userdata (EV_P) |
|
|
1512 | { |
|
|
1513 | return userdata; |
|
|
1514 | } |
|
|
1515 | |
|
|
1516 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1517 | { |
|
|
1518 | invoke_cb = invoke_pending_cb; |
|
|
1519 | } |
|
|
1520 | |
|
|
1521 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1522 | { |
|
|
1523 | release_cb = release; |
|
|
1524 | acquire_cb = acquire; |
|
|
1525 | } |
|
|
1526 | #endif |
|
|
1527 | |
|
|
1528 | /* initialise a loop structure, must be zero-initialised */ |
1152 | static void noinline |
1529 | static void noinline |
1153 | loop_init (EV_P_ unsigned int flags) |
1530 | loop_init (EV_P_ unsigned int flags) |
1154 | { |
1531 | { |
1155 | if (!backend) |
1532 | if (!backend) |
1156 | { |
1533 | { |
|
|
1534 | #if EV_USE_REALTIME |
|
|
1535 | if (!have_realtime) |
|
|
1536 | { |
|
|
1537 | struct timespec ts; |
|
|
1538 | |
|
|
1539 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1540 | have_realtime = 1; |
|
|
1541 | } |
|
|
1542 | #endif |
|
|
1543 | |
1157 | #if EV_USE_MONOTONIC |
1544 | #if EV_USE_MONOTONIC |
|
|
1545 | if (!have_monotonic) |
1158 | { |
1546 | { |
1159 | struct timespec ts; |
1547 | struct timespec ts; |
|
|
1548 | |
1160 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1549 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1161 | have_monotonic = 1; |
1550 | have_monotonic = 1; |
1162 | } |
1551 | } |
1163 | #endif |
1552 | #endif |
|
|
1553 | |
|
|
1554 | /* pid check not overridable via env */ |
|
|
1555 | #ifndef _WIN32 |
|
|
1556 | if (flags & EVFLAG_FORKCHECK) |
|
|
1557 | curpid = getpid (); |
|
|
1558 | #endif |
|
|
1559 | |
|
|
1560 | if (!(flags & EVFLAG_NOENV) |
|
|
1561 | && !enable_secure () |
|
|
1562 | && getenv ("LIBEV_FLAGS")) |
|
|
1563 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1164 | |
1564 | |
1165 | ev_rt_now = ev_time (); |
1565 | ev_rt_now = ev_time (); |
1166 | mn_now = get_clock (); |
1566 | mn_now = get_clock (); |
1167 | now_floor = mn_now; |
1567 | now_floor = mn_now; |
1168 | rtmn_diff = ev_rt_now - mn_now; |
1568 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1569 | #if EV_MINIMAL < 2 |
|
|
1570 | invoke_cb = ev_invoke_pending; |
|
|
1571 | #endif |
1169 | |
1572 | |
1170 | io_blocktime = 0.; |
1573 | io_blocktime = 0.; |
1171 | timeout_blocktime = 0.; |
1574 | timeout_blocktime = 0.; |
1172 | backend = 0; |
1575 | backend = 0; |
1173 | backend_fd = -1; |
1576 | backend_fd = -1; |
1174 | gotasync = 0; |
1577 | sig_pending = 0; |
|
|
1578 | #if EV_ASYNC_ENABLE |
|
|
1579 | async_pending = 0; |
|
|
1580 | #endif |
1175 | #if EV_USE_INOTIFY |
1581 | #if EV_USE_INOTIFY |
1176 | fs_fd = -2; |
1582 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1177 | #endif |
1583 | #endif |
1178 | |
1584 | #if EV_USE_SIGNALFD |
1179 | /* pid check not overridable via env */ |
1585 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1180 | #ifndef _WIN32 |
|
|
1181 | if (flags & EVFLAG_FORKCHECK) |
|
|
1182 | curpid = getpid (); |
|
|
1183 | #endif |
1586 | #endif |
1184 | |
1587 | |
1185 | if (!(flags & EVFLAG_NOENV) |
|
|
1186 | && !enable_secure () |
|
|
1187 | && getenv ("LIBEV_FLAGS")) |
|
|
1188 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1189 | |
|
|
1190 | if (!(flags & 0x0000ffffUL)) |
1588 | if (!(flags & 0x0000ffffU)) |
1191 | flags |= ev_recommended_backends (); |
1589 | flags |= ev_recommended_backends (); |
1192 | |
1590 | |
1193 | #if EV_USE_PORT |
1591 | #if EV_USE_PORT |
1194 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1592 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1195 | #endif |
1593 | #endif |
… | |
… | |
1204 | #endif |
1602 | #endif |
1205 | #if EV_USE_SELECT |
1603 | #if EV_USE_SELECT |
1206 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1604 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1207 | #endif |
1605 | #endif |
1208 | |
1606 | |
|
|
1607 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1608 | |
1209 | ev_init (&pipeev, pipecb); |
1609 | ev_init (&pipe_w, pipecb); |
1210 | ev_set_priority (&pipeev, EV_MAXPRI); |
1610 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1211 | } |
1611 | } |
1212 | } |
1612 | } |
1213 | |
1613 | |
|
|
1614 | /* free up a loop structure */ |
1214 | static void noinline |
1615 | static void noinline |
1215 | loop_destroy (EV_P) |
1616 | loop_destroy (EV_P) |
1216 | { |
1617 | { |
1217 | int i; |
1618 | int i; |
1218 | |
1619 | |
1219 | if (ev_is_active (&pipeev)) |
1620 | if (ev_is_active (&pipe_w)) |
1220 | { |
1621 | { |
1221 | ev_ref (EV_A); /* signal watcher */ |
1622 | /*ev_ref (EV_A);*/ |
1222 | ev_io_stop (EV_A_ &pipeev); |
1623 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1223 | |
1624 | |
1224 | #if EV_USE_EVENTFD |
1625 | #if EV_USE_EVENTFD |
1225 | if (evfd >= 0) |
1626 | if (evfd >= 0) |
1226 | close (evfd); |
1627 | close (evfd); |
1227 | #endif |
1628 | #endif |
1228 | |
1629 | |
1229 | if (evpipe [0] >= 0) |
1630 | if (evpipe [0] >= 0) |
1230 | { |
1631 | { |
1231 | close (evpipe [0]); |
1632 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1232 | close (evpipe [1]); |
1633 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1233 | } |
1634 | } |
1234 | } |
1635 | } |
|
|
1636 | |
|
|
1637 | #if EV_USE_SIGNALFD |
|
|
1638 | if (ev_is_active (&sigfd_w)) |
|
|
1639 | { |
|
|
1640 | /*ev_ref (EV_A);*/ |
|
|
1641 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1642 | |
|
|
1643 | close (sigfd); |
|
|
1644 | } |
|
|
1645 | #endif |
1235 | |
1646 | |
1236 | #if EV_USE_INOTIFY |
1647 | #if EV_USE_INOTIFY |
1237 | if (fs_fd >= 0) |
1648 | if (fs_fd >= 0) |
1238 | close (fs_fd); |
1649 | close (fs_fd); |
1239 | #endif |
1650 | #endif |
… | |
… | |
1263 | #if EV_IDLE_ENABLE |
1674 | #if EV_IDLE_ENABLE |
1264 | array_free (idle, [i]); |
1675 | array_free (idle, [i]); |
1265 | #endif |
1676 | #endif |
1266 | } |
1677 | } |
1267 | |
1678 | |
1268 | ev_free (anfds); anfdmax = 0; |
1679 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1269 | |
1680 | |
1270 | /* have to use the microsoft-never-gets-it-right macro */ |
1681 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1682 | array_free (rfeed, EMPTY); |
1271 | array_free (fdchange, EMPTY); |
1683 | array_free (fdchange, EMPTY); |
1272 | array_free (timer, EMPTY); |
1684 | array_free (timer, EMPTY); |
1273 | #if EV_PERIODIC_ENABLE |
1685 | #if EV_PERIODIC_ENABLE |
1274 | array_free (periodic, EMPTY); |
1686 | array_free (periodic, EMPTY); |
1275 | #endif |
1687 | #endif |
… | |
… | |
1283 | #endif |
1695 | #endif |
1284 | |
1696 | |
1285 | backend = 0; |
1697 | backend = 0; |
1286 | } |
1698 | } |
1287 | |
1699 | |
|
|
1700 | #if EV_USE_INOTIFY |
1288 | void inline_size infy_fork (EV_P); |
1701 | inline_size void infy_fork (EV_P); |
|
|
1702 | #endif |
1289 | |
1703 | |
1290 | void inline_size |
1704 | inline_size void |
1291 | loop_fork (EV_P) |
1705 | loop_fork (EV_P) |
1292 | { |
1706 | { |
1293 | #if EV_USE_PORT |
1707 | #if EV_USE_PORT |
1294 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1708 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1295 | #endif |
1709 | #endif |
… | |
… | |
1301 | #endif |
1715 | #endif |
1302 | #if EV_USE_INOTIFY |
1716 | #if EV_USE_INOTIFY |
1303 | infy_fork (EV_A); |
1717 | infy_fork (EV_A); |
1304 | #endif |
1718 | #endif |
1305 | |
1719 | |
1306 | if (ev_is_active (&pipeev)) |
1720 | if (ev_is_active (&pipe_w)) |
1307 | { |
1721 | { |
1308 | /* this "locks" the handlers against writing to the pipe */ |
1722 | /* this "locks" the handlers against writing to the pipe */ |
1309 | /* while we modify the fd vars */ |
1723 | /* while we modify the fd vars */ |
1310 | gotsig = 1; |
1724 | sig_pending = 1; |
1311 | #if EV_ASYNC_ENABLE |
1725 | #if EV_ASYNC_ENABLE |
1312 | gotasync = 1; |
1726 | async_pending = 1; |
1313 | #endif |
1727 | #endif |
1314 | |
1728 | |
1315 | ev_ref (EV_A); |
1729 | ev_ref (EV_A); |
1316 | ev_io_stop (EV_A_ &pipeev); |
1730 | ev_io_stop (EV_A_ &pipe_w); |
1317 | |
1731 | |
1318 | #if EV_USE_EVENTFD |
1732 | #if EV_USE_EVENTFD |
1319 | if (evfd >= 0) |
1733 | if (evfd >= 0) |
1320 | close (evfd); |
1734 | close (evfd); |
1321 | #endif |
1735 | #endif |
1322 | |
1736 | |
1323 | if (evpipe [0] >= 0) |
1737 | if (evpipe [0] >= 0) |
1324 | { |
1738 | { |
1325 | close (evpipe [0]); |
1739 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1326 | close (evpipe [1]); |
1740 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1327 | } |
1741 | } |
1328 | |
1742 | |
1329 | evpipe_init (EV_A); |
1743 | evpipe_init (EV_A); |
1330 | /* now iterate over everything, in case we missed something */ |
1744 | /* now iterate over everything, in case we missed something */ |
1331 | pipecb (EV_A_ &pipeev, EV_READ); |
1745 | pipecb (EV_A_ &pipe_w, EV_READ); |
1332 | } |
1746 | } |
1333 | |
1747 | |
1334 | postfork = 0; |
1748 | postfork = 0; |
1335 | } |
1749 | } |
1336 | |
1750 | |
1337 | #if EV_MULTIPLICITY |
1751 | #if EV_MULTIPLICITY |
|
|
1752 | |
1338 | struct ev_loop * |
1753 | struct ev_loop * |
1339 | ev_loop_new (unsigned int flags) |
1754 | ev_loop_new (unsigned int flags) |
1340 | { |
1755 | { |
1341 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1756 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1342 | |
1757 | |
1343 | memset (loop, 0, sizeof (struct ev_loop)); |
1758 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1344 | |
|
|
1345 | loop_init (EV_A_ flags); |
1759 | loop_init (EV_A_ flags); |
1346 | |
1760 | |
1347 | if (ev_backend (EV_A)) |
1761 | if (ev_backend (EV_A)) |
1348 | return loop; |
1762 | return EV_A; |
1349 | |
1763 | |
1350 | return 0; |
1764 | return 0; |
1351 | } |
1765 | } |
1352 | |
1766 | |
1353 | void |
1767 | void |
… | |
… | |
1360 | void |
1774 | void |
1361 | ev_loop_fork (EV_P) |
1775 | ev_loop_fork (EV_P) |
1362 | { |
1776 | { |
1363 | postfork = 1; /* must be in line with ev_default_fork */ |
1777 | postfork = 1; /* must be in line with ev_default_fork */ |
1364 | } |
1778 | } |
|
|
1779 | #endif /* multiplicity */ |
1365 | |
1780 | |
|
|
1781 | #if EV_VERIFY |
|
|
1782 | static void noinline |
|
|
1783 | verify_watcher (EV_P_ W w) |
|
|
1784 | { |
|
|
1785 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1786 | |
|
|
1787 | if (w->pending) |
|
|
1788 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1789 | } |
|
|
1790 | |
|
|
1791 | static void noinline |
|
|
1792 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1793 | { |
|
|
1794 | int i; |
|
|
1795 | |
|
|
1796 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1797 | { |
|
|
1798 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1799 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1800 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1801 | |
|
|
1802 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1803 | } |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | static void noinline |
|
|
1807 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1808 | { |
|
|
1809 | while (cnt--) |
|
|
1810 | { |
|
|
1811 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1812 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1813 | } |
|
|
1814 | } |
|
|
1815 | #endif |
|
|
1816 | |
|
|
1817 | #if EV_MINIMAL < 2 |
|
|
1818 | void |
|
|
1819 | ev_loop_verify (EV_P) |
|
|
1820 | { |
|
|
1821 | #if EV_VERIFY |
|
|
1822 | int i; |
|
|
1823 | WL w; |
|
|
1824 | |
|
|
1825 | assert (activecnt >= -1); |
|
|
1826 | |
|
|
1827 | assert (fdchangemax >= fdchangecnt); |
|
|
1828 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1829 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1830 | |
|
|
1831 | assert (anfdmax >= 0); |
|
|
1832 | for (i = 0; i < anfdmax; ++i) |
|
|
1833 | for (w = anfds [i].head; w; w = w->next) |
|
|
1834 | { |
|
|
1835 | verify_watcher (EV_A_ (W)w); |
|
|
1836 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1837 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1838 | } |
|
|
1839 | |
|
|
1840 | assert (timermax >= timercnt); |
|
|
1841 | verify_heap (EV_A_ timers, timercnt); |
|
|
1842 | |
|
|
1843 | #if EV_PERIODIC_ENABLE |
|
|
1844 | assert (periodicmax >= periodiccnt); |
|
|
1845 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1846 | #endif |
|
|
1847 | |
|
|
1848 | for (i = NUMPRI; i--; ) |
|
|
1849 | { |
|
|
1850 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1851 | #if EV_IDLE_ENABLE |
|
|
1852 | assert (idleall >= 0); |
|
|
1853 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1854 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1855 | #endif |
|
|
1856 | } |
|
|
1857 | |
|
|
1858 | #if EV_FORK_ENABLE |
|
|
1859 | assert (forkmax >= forkcnt); |
|
|
1860 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1861 | #endif |
|
|
1862 | |
|
|
1863 | #if EV_ASYNC_ENABLE |
|
|
1864 | assert (asyncmax >= asynccnt); |
|
|
1865 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1866 | #endif |
|
|
1867 | |
|
|
1868 | assert (preparemax >= preparecnt); |
|
|
1869 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1870 | |
|
|
1871 | assert (checkmax >= checkcnt); |
|
|
1872 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1873 | |
|
|
1874 | # if 0 |
|
|
1875 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1876 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1877 | # endif |
|
|
1878 | #endif |
|
|
1879 | } |
1366 | #endif |
1880 | #endif |
1367 | |
1881 | |
1368 | #if EV_MULTIPLICITY |
1882 | #if EV_MULTIPLICITY |
1369 | struct ev_loop * |
1883 | struct ev_loop * |
1370 | ev_default_loop_init (unsigned int flags) |
1884 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1374 | #endif |
1888 | #endif |
1375 | { |
1889 | { |
1376 | if (!ev_default_loop_ptr) |
1890 | if (!ev_default_loop_ptr) |
1377 | { |
1891 | { |
1378 | #if EV_MULTIPLICITY |
1892 | #if EV_MULTIPLICITY |
1379 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1893 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1380 | #else |
1894 | #else |
1381 | ev_default_loop_ptr = 1; |
1895 | ev_default_loop_ptr = 1; |
1382 | #endif |
1896 | #endif |
1383 | |
1897 | |
1384 | loop_init (EV_A_ flags); |
1898 | loop_init (EV_A_ flags); |
… | |
… | |
1401 | |
1915 | |
1402 | void |
1916 | void |
1403 | ev_default_destroy (void) |
1917 | ev_default_destroy (void) |
1404 | { |
1918 | { |
1405 | #if EV_MULTIPLICITY |
1919 | #if EV_MULTIPLICITY |
1406 | struct ev_loop *loop = ev_default_loop_ptr; |
1920 | EV_P = ev_default_loop_ptr; |
1407 | #endif |
1921 | #endif |
|
|
1922 | |
|
|
1923 | ev_default_loop_ptr = 0; |
1408 | |
1924 | |
1409 | #ifndef _WIN32 |
1925 | #ifndef _WIN32 |
1410 | ev_ref (EV_A); /* child watcher */ |
1926 | ev_ref (EV_A); /* child watcher */ |
1411 | ev_signal_stop (EV_A_ &childev); |
1927 | ev_signal_stop (EV_A_ &childev); |
1412 | #endif |
1928 | #endif |
… | |
… | |
1416 | |
1932 | |
1417 | void |
1933 | void |
1418 | ev_default_fork (void) |
1934 | ev_default_fork (void) |
1419 | { |
1935 | { |
1420 | #if EV_MULTIPLICITY |
1936 | #if EV_MULTIPLICITY |
1421 | struct ev_loop *loop = ev_default_loop_ptr; |
1937 | EV_P = ev_default_loop_ptr; |
1422 | #endif |
1938 | #endif |
1423 | |
1939 | |
1424 | if (backend) |
|
|
1425 | postfork = 1; /* must be in line with ev_loop_fork */ |
1940 | postfork = 1; /* must be in line with ev_loop_fork */ |
1426 | } |
1941 | } |
1427 | |
1942 | |
1428 | /*****************************************************************************/ |
1943 | /*****************************************************************************/ |
1429 | |
1944 | |
1430 | void |
1945 | void |
1431 | ev_invoke (EV_P_ void *w, int revents) |
1946 | ev_invoke (EV_P_ void *w, int revents) |
1432 | { |
1947 | { |
1433 | EV_CB_INVOKE ((W)w, revents); |
1948 | EV_CB_INVOKE ((W)w, revents); |
1434 | } |
1949 | } |
1435 | |
1950 | |
1436 | void inline_speed |
1951 | unsigned int |
1437 | call_pending (EV_P) |
1952 | ev_pending_count (EV_P) |
|
|
1953 | { |
|
|
1954 | int pri; |
|
|
1955 | unsigned int count = 0; |
|
|
1956 | |
|
|
1957 | for (pri = NUMPRI; pri--; ) |
|
|
1958 | count += pendingcnt [pri]; |
|
|
1959 | |
|
|
1960 | return count; |
|
|
1961 | } |
|
|
1962 | |
|
|
1963 | void noinline |
|
|
1964 | ev_invoke_pending (EV_P) |
1438 | { |
1965 | { |
1439 | int pri; |
1966 | int pri; |
1440 | |
1967 | |
1441 | for (pri = NUMPRI; pri--; ) |
1968 | for (pri = NUMPRI; pri--; ) |
1442 | while (pendingcnt [pri]) |
1969 | while (pendingcnt [pri]) |
1443 | { |
1970 | { |
1444 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1971 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1445 | |
1972 | |
1446 | if (expect_true (p->w)) |
|
|
1447 | { |
|
|
1448 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1973 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1974 | /* ^ this is no longer true, as pending_w could be here */ |
1449 | |
1975 | |
1450 | p->w->pending = 0; |
1976 | p->w->pending = 0; |
1451 | EV_CB_INVOKE (p->w, p->events); |
1977 | EV_CB_INVOKE (p->w, p->events); |
1452 | } |
1978 | EV_FREQUENT_CHECK; |
1453 | } |
1979 | } |
1454 | } |
1980 | } |
1455 | |
1981 | |
1456 | void inline_size |
|
|
1457 | timers_reify (EV_P) |
|
|
1458 | { |
|
|
1459 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1460 | { |
|
|
1461 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1462 | |
|
|
1463 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1464 | |
|
|
1465 | /* first reschedule or stop timer */ |
|
|
1466 | if (w->repeat) |
|
|
1467 | { |
|
|
1468 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1469 | |
|
|
1470 | ((WT)w)->at += w->repeat; |
|
|
1471 | if (((WT)w)->at < mn_now) |
|
|
1472 | ((WT)w)->at = mn_now; |
|
|
1473 | |
|
|
1474 | downheap (timers, timercnt, 0); |
|
|
1475 | } |
|
|
1476 | else |
|
|
1477 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1478 | |
|
|
1479 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1480 | } |
|
|
1481 | } |
|
|
1482 | |
|
|
1483 | #if EV_PERIODIC_ENABLE |
|
|
1484 | void inline_size |
|
|
1485 | periodics_reify (EV_P) |
|
|
1486 | { |
|
|
1487 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1488 | { |
|
|
1489 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1490 | |
|
|
1491 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1492 | |
|
|
1493 | /* first reschedule or stop timer */ |
|
|
1494 | if (w->reschedule_cb) |
|
|
1495 | { |
|
|
1496 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1497 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1498 | downheap (periodics, periodiccnt, 0); |
|
|
1499 | } |
|
|
1500 | else if (w->interval) |
|
|
1501 | { |
|
|
1502 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1503 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1504 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1505 | downheap (periodics, periodiccnt, 0); |
|
|
1506 | } |
|
|
1507 | else |
|
|
1508 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1509 | |
|
|
1510 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1511 | } |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | static void noinline |
|
|
1515 | periodics_reschedule (EV_P) |
|
|
1516 | { |
|
|
1517 | int i; |
|
|
1518 | |
|
|
1519 | /* adjust periodics after time jump */ |
|
|
1520 | for (i = 0; i < periodiccnt; ++i) |
|
|
1521 | { |
|
|
1522 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1523 | |
|
|
1524 | if (w->reschedule_cb) |
|
|
1525 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1526 | else if (w->interval) |
|
|
1527 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | /* now rebuild the heap */ |
|
|
1531 | for (i = periodiccnt >> 1; i--; ) |
|
|
1532 | downheap (periodics, periodiccnt, i); |
|
|
1533 | } |
|
|
1534 | #endif |
|
|
1535 | |
|
|
1536 | #if EV_IDLE_ENABLE |
1982 | #if EV_IDLE_ENABLE |
1537 | void inline_size |
1983 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1984 | /* only when higher priorities are idle" logic */ |
|
|
1985 | inline_size void |
1538 | idle_reify (EV_P) |
1986 | idle_reify (EV_P) |
1539 | { |
1987 | { |
1540 | if (expect_false (idleall)) |
1988 | if (expect_false (idleall)) |
1541 | { |
1989 | { |
1542 | int pri; |
1990 | int pri; |
… | |
… | |
1554 | } |
2002 | } |
1555 | } |
2003 | } |
1556 | } |
2004 | } |
1557 | #endif |
2005 | #endif |
1558 | |
2006 | |
1559 | void inline_speed |
2007 | /* make timers pending */ |
|
|
2008 | inline_size void |
|
|
2009 | timers_reify (EV_P) |
|
|
2010 | { |
|
|
2011 | EV_FREQUENT_CHECK; |
|
|
2012 | |
|
|
2013 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2014 | { |
|
|
2015 | do |
|
|
2016 | { |
|
|
2017 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2018 | |
|
|
2019 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2020 | |
|
|
2021 | /* first reschedule or stop timer */ |
|
|
2022 | if (w->repeat) |
|
|
2023 | { |
|
|
2024 | ev_at (w) += w->repeat; |
|
|
2025 | if (ev_at (w) < mn_now) |
|
|
2026 | ev_at (w) = mn_now; |
|
|
2027 | |
|
|
2028 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2029 | |
|
|
2030 | ANHE_at_cache (timers [HEAP0]); |
|
|
2031 | downheap (timers, timercnt, HEAP0); |
|
|
2032 | } |
|
|
2033 | else |
|
|
2034 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2035 | |
|
|
2036 | EV_FREQUENT_CHECK; |
|
|
2037 | feed_reverse (EV_A_ (W)w); |
|
|
2038 | } |
|
|
2039 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2040 | |
|
|
2041 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
2042 | } |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | #if EV_PERIODIC_ENABLE |
|
|
2046 | /* make periodics pending */ |
|
|
2047 | inline_size void |
|
|
2048 | periodics_reify (EV_P) |
|
|
2049 | { |
|
|
2050 | EV_FREQUENT_CHECK; |
|
|
2051 | |
|
|
2052 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2053 | { |
|
|
2054 | int feed_count = 0; |
|
|
2055 | |
|
|
2056 | do |
|
|
2057 | { |
|
|
2058 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2059 | |
|
|
2060 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2061 | |
|
|
2062 | /* first reschedule or stop timer */ |
|
|
2063 | if (w->reschedule_cb) |
|
|
2064 | { |
|
|
2065 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2066 | |
|
|
2067 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2068 | |
|
|
2069 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2070 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2071 | } |
|
|
2072 | else if (w->interval) |
|
|
2073 | { |
|
|
2074 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2075 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2076 | /* this might happen because of floating point inexactness */ |
|
|
2077 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2078 | { |
|
|
2079 | ev_at (w) += w->interval; |
|
|
2080 | |
|
|
2081 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2082 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2083 | /* has effectively asked to get triggered more often than possible */ |
|
|
2084 | if (ev_at (w) < ev_rt_now) |
|
|
2085 | ev_at (w) = ev_rt_now; |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2089 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2090 | } |
|
|
2091 | else |
|
|
2092 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2093 | |
|
|
2094 | EV_FREQUENT_CHECK; |
|
|
2095 | feed_reverse (EV_A_ (W)w); |
|
|
2096 | } |
|
|
2097 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2098 | |
|
|
2099 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2100 | } |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | /* simply recalculate all periodics */ |
|
|
2104 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2105 | static void noinline |
|
|
2106 | periodics_reschedule (EV_P) |
|
|
2107 | { |
|
|
2108 | int i; |
|
|
2109 | |
|
|
2110 | /* adjust periodics after time jump */ |
|
|
2111 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2112 | { |
|
|
2113 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2114 | |
|
|
2115 | if (w->reschedule_cb) |
|
|
2116 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2117 | else if (w->interval) |
|
|
2118 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2119 | |
|
|
2120 | ANHE_at_cache (periodics [i]); |
|
|
2121 | } |
|
|
2122 | |
|
|
2123 | reheap (periodics, periodiccnt); |
|
|
2124 | } |
|
|
2125 | #endif |
|
|
2126 | |
|
|
2127 | /* adjust all timers by a given offset */ |
|
|
2128 | static void noinline |
|
|
2129 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2130 | { |
|
|
2131 | int i; |
|
|
2132 | |
|
|
2133 | for (i = 0; i < timercnt; ++i) |
|
|
2134 | { |
|
|
2135 | ANHE *he = timers + i + HEAP0; |
|
|
2136 | ANHE_w (*he)->at += adjust; |
|
|
2137 | ANHE_at_cache (*he); |
|
|
2138 | } |
|
|
2139 | } |
|
|
2140 | |
|
|
2141 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2142 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2143 | inline_speed void |
1560 | time_update (EV_P_ ev_tstamp max_block) |
2144 | time_update (EV_P_ ev_tstamp max_block) |
1561 | { |
2145 | { |
1562 | int i; |
|
|
1563 | |
|
|
1564 | #if EV_USE_MONOTONIC |
2146 | #if EV_USE_MONOTONIC |
1565 | if (expect_true (have_monotonic)) |
2147 | if (expect_true (have_monotonic)) |
1566 | { |
2148 | { |
|
|
2149 | int i; |
1567 | ev_tstamp odiff = rtmn_diff; |
2150 | ev_tstamp odiff = rtmn_diff; |
1568 | |
2151 | |
1569 | mn_now = get_clock (); |
2152 | mn_now = get_clock (); |
1570 | |
2153 | |
1571 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2154 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1589 | */ |
2172 | */ |
1590 | for (i = 4; --i; ) |
2173 | for (i = 4; --i; ) |
1591 | { |
2174 | { |
1592 | rtmn_diff = ev_rt_now - mn_now; |
2175 | rtmn_diff = ev_rt_now - mn_now; |
1593 | |
2176 | |
1594 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2177 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1595 | return; /* all is well */ |
2178 | return; /* all is well */ |
1596 | |
2179 | |
1597 | ev_rt_now = ev_time (); |
2180 | ev_rt_now = ev_time (); |
1598 | mn_now = get_clock (); |
2181 | mn_now = get_clock (); |
1599 | now_floor = mn_now; |
2182 | now_floor = mn_now; |
1600 | } |
2183 | } |
1601 | |
2184 | |
|
|
2185 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2186 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1602 | # if EV_PERIODIC_ENABLE |
2187 | # if EV_PERIODIC_ENABLE |
1603 | periodics_reschedule (EV_A); |
2188 | periodics_reschedule (EV_A); |
1604 | # endif |
2189 | # endif |
1605 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1606 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1607 | } |
2190 | } |
1608 | else |
2191 | else |
1609 | #endif |
2192 | #endif |
1610 | { |
2193 | { |
1611 | ev_rt_now = ev_time (); |
2194 | ev_rt_now = ev_time (); |
1612 | |
2195 | |
1613 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2196 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1614 | { |
2197 | { |
|
|
2198 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2199 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1615 | #if EV_PERIODIC_ENABLE |
2200 | #if EV_PERIODIC_ENABLE |
1616 | periodics_reschedule (EV_A); |
2201 | periodics_reschedule (EV_A); |
1617 | #endif |
2202 | #endif |
1618 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1619 | for (i = 0; i < timercnt; ++i) |
|
|
1620 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1621 | } |
2203 | } |
1622 | |
2204 | |
1623 | mn_now = ev_rt_now; |
2205 | mn_now = ev_rt_now; |
1624 | } |
2206 | } |
1625 | } |
2207 | } |
1626 | |
2208 | |
1627 | void |
2209 | void |
1628 | ev_ref (EV_P) |
|
|
1629 | { |
|
|
1630 | ++activecnt; |
|
|
1631 | } |
|
|
1632 | |
|
|
1633 | void |
|
|
1634 | ev_unref (EV_P) |
|
|
1635 | { |
|
|
1636 | --activecnt; |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | static int loop_done; |
|
|
1640 | |
|
|
1641 | void |
|
|
1642 | ev_loop (EV_P_ int flags) |
2210 | ev_loop (EV_P_ int flags) |
1643 | { |
2211 | { |
|
|
2212 | #if EV_MINIMAL < 2 |
|
|
2213 | ++loop_depth; |
|
|
2214 | #endif |
|
|
2215 | |
|
|
2216 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2217 | |
1644 | loop_done = EVUNLOOP_CANCEL; |
2218 | loop_done = EVUNLOOP_CANCEL; |
1645 | |
2219 | |
1646 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2220 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1647 | |
2221 | |
1648 | do |
2222 | do |
1649 | { |
2223 | { |
|
|
2224 | #if EV_VERIFY >= 2 |
|
|
2225 | ev_loop_verify (EV_A); |
|
|
2226 | #endif |
|
|
2227 | |
1650 | #ifndef _WIN32 |
2228 | #ifndef _WIN32 |
1651 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2229 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1652 | if (expect_false (getpid () != curpid)) |
2230 | if (expect_false (getpid () != curpid)) |
1653 | { |
2231 | { |
1654 | curpid = getpid (); |
2232 | curpid = getpid (); |
… | |
… | |
1660 | /* we might have forked, so queue fork handlers */ |
2238 | /* we might have forked, so queue fork handlers */ |
1661 | if (expect_false (postfork)) |
2239 | if (expect_false (postfork)) |
1662 | if (forkcnt) |
2240 | if (forkcnt) |
1663 | { |
2241 | { |
1664 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2242 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1665 | call_pending (EV_A); |
2243 | EV_INVOKE_PENDING; |
1666 | } |
2244 | } |
1667 | #endif |
2245 | #endif |
1668 | |
2246 | |
1669 | /* queue prepare watchers (and execute them) */ |
2247 | /* queue prepare watchers (and execute them) */ |
1670 | if (expect_false (preparecnt)) |
2248 | if (expect_false (preparecnt)) |
1671 | { |
2249 | { |
1672 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2250 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1673 | call_pending (EV_A); |
2251 | EV_INVOKE_PENDING; |
1674 | } |
2252 | } |
1675 | |
2253 | |
1676 | if (expect_false (!activecnt)) |
2254 | if (expect_false (loop_done)) |
1677 | break; |
2255 | break; |
1678 | |
2256 | |
1679 | /* we might have forked, so reify kernel state if necessary */ |
2257 | /* we might have forked, so reify kernel state if necessary */ |
1680 | if (expect_false (postfork)) |
2258 | if (expect_false (postfork)) |
1681 | loop_fork (EV_A); |
2259 | loop_fork (EV_A); |
… | |
… | |
1688 | ev_tstamp waittime = 0.; |
2266 | ev_tstamp waittime = 0.; |
1689 | ev_tstamp sleeptime = 0.; |
2267 | ev_tstamp sleeptime = 0.; |
1690 | |
2268 | |
1691 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2269 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1692 | { |
2270 | { |
|
|
2271 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2272 | ev_tstamp prev_mn_now = mn_now; |
|
|
2273 | |
1693 | /* update time to cancel out callback processing overhead */ |
2274 | /* update time to cancel out callback processing overhead */ |
1694 | time_update (EV_A_ 1e100); |
2275 | time_update (EV_A_ 1e100); |
1695 | |
2276 | |
1696 | waittime = MAX_BLOCKTIME; |
2277 | waittime = MAX_BLOCKTIME; |
1697 | |
2278 | |
1698 | if (timercnt) |
2279 | if (timercnt) |
1699 | { |
2280 | { |
1700 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2281 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1701 | if (waittime > to) waittime = to; |
2282 | if (waittime > to) waittime = to; |
1702 | } |
2283 | } |
1703 | |
2284 | |
1704 | #if EV_PERIODIC_ENABLE |
2285 | #if EV_PERIODIC_ENABLE |
1705 | if (periodiccnt) |
2286 | if (periodiccnt) |
1706 | { |
2287 | { |
1707 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2288 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1708 | if (waittime > to) waittime = to; |
2289 | if (waittime > to) waittime = to; |
1709 | } |
2290 | } |
1710 | #endif |
2291 | #endif |
1711 | |
2292 | |
|
|
2293 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1712 | if (expect_false (waittime < timeout_blocktime)) |
2294 | if (expect_false (waittime < timeout_blocktime)) |
1713 | waittime = timeout_blocktime; |
2295 | waittime = timeout_blocktime; |
1714 | |
2296 | |
1715 | sleeptime = waittime - backend_fudge; |
2297 | /* extra check because io_blocktime is commonly 0 */ |
1716 | |
|
|
1717 | if (expect_true (sleeptime > io_blocktime)) |
2298 | if (expect_false (io_blocktime)) |
1718 | sleeptime = io_blocktime; |
|
|
1719 | |
|
|
1720 | if (sleeptime) |
|
|
1721 | { |
2299 | { |
|
|
2300 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2301 | |
|
|
2302 | if (sleeptime > waittime - backend_fudge) |
|
|
2303 | sleeptime = waittime - backend_fudge; |
|
|
2304 | |
|
|
2305 | if (expect_true (sleeptime > 0.)) |
|
|
2306 | { |
1722 | ev_sleep (sleeptime); |
2307 | ev_sleep (sleeptime); |
1723 | waittime -= sleeptime; |
2308 | waittime -= sleeptime; |
|
|
2309 | } |
1724 | } |
2310 | } |
1725 | } |
2311 | } |
1726 | |
2312 | |
|
|
2313 | #if EV_MINIMAL < 2 |
1727 | ++loop_count; |
2314 | ++loop_count; |
|
|
2315 | #endif |
|
|
2316 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1728 | backend_poll (EV_A_ waittime); |
2317 | backend_poll (EV_A_ waittime); |
|
|
2318 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1729 | |
2319 | |
1730 | /* update ev_rt_now, do magic */ |
2320 | /* update ev_rt_now, do magic */ |
1731 | time_update (EV_A_ waittime + sleeptime); |
2321 | time_update (EV_A_ waittime + sleeptime); |
1732 | } |
2322 | } |
1733 | |
2323 | |
… | |
… | |
1744 | |
2334 | |
1745 | /* queue check watchers, to be executed first */ |
2335 | /* queue check watchers, to be executed first */ |
1746 | if (expect_false (checkcnt)) |
2336 | if (expect_false (checkcnt)) |
1747 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2337 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1748 | |
2338 | |
1749 | call_pending (EV_A); |
2339 | EV_INVOKE_PENDING; |
1750 | } |
2340 | } |
1751 | while (expect_true ( |
2341 | while (expect_true ( |
1752 | activecnt |
2342 | activecnt |
1753 | && !loop_done |
2343 | && !loop_done |
1754 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2344 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1755 | )); |
2345 | )); |
1756 | |
2346 | |
1757 | if (loop_done == EVUNLOOP_ONE) |
2347 | if (loop_done == EVUNLOOP_ONE) |
1758 | loop_done = EVUNLOOP_CANCEL; |
2348 | loop_done = EVUNLOOP_CANCEL; |
|
|
2349 | |
|
|
2350 | #if EV_MINIMAL < 2 |
|
|
2351 | --loop_depth; |
|
|
2352 | #endif |
1759 | } |
2353 | } |
1760 | |
2354 | |
1761 | void |
2355 | void |
1762 | ev_unloop (EV_P_ int how) |
2356 | ev_unloop (EV_P_ int how) |
1763 | { |
2357 | { |
1764 | loop_done = how; |
2358 | loop_done = how; |
1765 | } |
2359 | } |
1766 | |
2360 | |
|
|
2361 | void |
|
|
2362 | ev_ref (EV_P) |
|
|
2363 | { |
|
|
2364 | ++activecnt; |
|
|
2365 | } |
|
|
2366 | |
|
|
2367 | void |
|
|
2368 | ev_unref (EV_P) |
|
|
2369 | { |
|
|
2370 | --activecnt; |
|
|
2371 | } |
|
|
2372 | |
|
|
2373 | void |
|
|
2374 | ev_now_update (EV_P) |
|
|
2375 | { |
|
|
2376 | time_update (EV_A_ 1e100); |
|
|
2377 | } |
|
|
2378 | |
|
|
2379 | void |
|
|
2380 | ev_suspend (EV_P) |
|
|
2381 | { |
|
|
2382 | ev_now_update (EV_A); |
|
|
2383 | } |
|
|
2384 | |
|
|
2385 | void |
|
|
2386 | ev_resume (EV_P) |
|
|
2387 | { |
|
|
2388 | ev_tstamp mn_prev = mn_now; |
|
|
2389 | |
|
|
2390 | ev_now_update (EV_A); |
|
|
2391 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2392 | #if EV_PERIODIC_ENABLE |
|
|
2393 | /* TODO: really do this? */ |
|
|
2394 | periodics_reschedule (EV_A); |
|
|
2395 | #endif |
|
|
2396 | } |
|
|
2397 | |
1767 | /*****************************************************************************/ |
2398 | /*****************************************************************************/ |
|
|
2399 | /* singly-linked list management, used when the expected list length is short */ |
1768 | |
2400 | |
1769 | void inline_size |
2401 | inline_size void |
1770 | wlist_add (WL *head, WL elem) |
2402 | wlist_add (WL *head, WL elem) |
1771 | { |
2403 | { |
1772 | elem->next = *head; |
2404 | elem->next = *head; |
1773 | *head = elem; |
2405 | *head = elem; |
1774 | } |
2406 | } |
1775 | |
2407 | |
1776 | void inline_size |
2408 | inline_size void |
1777 | wlist_del (WL *head, WL elem) |
2409 | wlist_del (WL *head, WL elem) |
1778 | { |
2410 | { |
1779 | while (*head) |
2411 | while (*head) |
1780 | { |
2412 | { |
1781 | if (*head == elem) |
2413 | if (expect_true (*head == elem)) |
1782 | { |
2414 | { |
1783 | *head = elem->next; |
2415 | *head = elem->next; |
1784 | return; |
2416 | break; |
1785 | } |
2417 | } |
1786 | |
2418 | |
1787 | head = &(*head)->next; |
2419 | head = &(*head)->next; |
1788 | } |
2420 | } |
1789 | } |
2421 | } |
1790 | |
2422 | |
1791 | void inline_speed |
2423 | /* internal, faster, version of ev_clear_pending */ |
|
|
2424 | inline_speed void |
1792 | clear_pending (EV_P_ W w) |
2425 | clear_pending (EV_P_ W w) |
1793 | { |
2426 | { |
1794 | if (w->pending) |
2427 | if (w->pending) |
1795 | { |
2428 | { |
1796 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2429 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1797 | w->pending = 0; |
2430 | w->pending = 0; |
1798 | } |
2431 | } |
1799 | } |
2432 | } |
1800 | |
2433 | |
1801 | int |
2434 | int |
… | |
… | |
1805 | int pending = w_->pending; |
2438 | int pending = w_->pending; |
1806 | |
2439 | |
1807 | if (expect_true (pending)) |
2440 | if (expect_true (pending)) |
1808 | { |
2441 | { |
1809 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2442 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2443 | p->w = (W)&pending_w; |
1810 | w_->pending = 0; |
2444 | w_->pending = 0; |
1811 | p->w = 0; |
|
|
1812 | return p->events; |
2445 | return p->events; |
1813 | } |
2446 | } |
1814 | else |
2447 | else |
1815 | return 0; |
2448 | return 0; |
1816 | } |
2449 | } |
1817 | |
2450 | |
1818 | void inline_size |
2451 | inline_size void |
1819 | pri_adjust (EV_P_ W w) |
2452 | pri_adjust (EV_P_ W w) |
1820 | { |
2453 | { |
1821 | int pri = w->priority; |
2454 | int pri = ev_priority (w); |
1822 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2455 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1823 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2456 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1824 | w->priority = pri; |
2457 | ev_set_priority (w, pri); |
1825 | } |
2458 | } |
1826 | |
2459 | |
1827 | void inline_speed |
2460 | inline_speed void |
1828 | ev_start (EV_P_ W w, int active) |
2461 | ev_start (EV_P_ W w, int active) |
1829 | { |
2462 | { |
1830 | pri_adjust (EV_A_ w); |
2463 | pri_adjust (EV_A_ w); |
1831 | w->active = active; |
2464 | w->active = active; |
1832 | ev_ref (EV_A); |
2465 | ev_ref (EV_A); |
1833 | } |
2466 | } |
1834 | |
2467 | |
1835 | void inline_size |
2468 | inline_size void |
1836 | ev_stop (EV_P_ W w) |
2469 | ev_stop (EV_P_ W w) |
1837 | { |
2470 | { |
1838 | ev_unref (EV_A); |
2471 | ev_unref (EV_A); |
1839 | w->active = 0; |
2472 | w->active = 0; |
1840 | } |
2473 | } |
… | |
… | |
1847 | int fd = w->fd; |
2480 | int fd = w->fd; |
1848 | |
2481 | |
1849 | if (expect_false (ev_is_active (w))) |
2482 | if (expect_false (ev_is_active (w))) |
1850 | return; |
2483 | return; |
1851 | |
2484 | |
1852 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2485 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2486 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2487 | |
|
|
2488 | EV_FREQUENT_CHECK; |
1853 | |
2489 | |
1854 | ev_start (EV_A_ (W)w, 1); |
2490 | ev_start (EV_A_ (W)w, 1); |
1855 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2491 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1856 | wlist_add (&anfds[fd].head, (WL)w); |
2492 | wlist_add (&anfds[fd].head, (WL)w); |
1857 | |
2493 | |
1858 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2494 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1859 | w->events &= ~EV_IOFDSET; |
2495 | w->events &= ~EV__IOFDSET; |
|
|
2496 | |
|
|
2497 | EV_FREQUENT_CHECK; |
1860 | } |
2498 | } |
1861 | |
2499 | |
1862 | void noinline |
2500 | void noinline |
1863 | ev_io_stop (EV_P_ ev_io *w) |
2501 | ev_io_stop (EV_P_ ev_io *w) |
1864 | { |
2502 | { |
1865 | clear_pending (EV_A_ (W)w); |
2503 | clear_pending (EV_A_ (W)w); |
1866 | if (expect_false (!ev_is_active (w))) |
2504 | if (expect_false (!ev_is_active (w))) |
1867 | return; |
2505 | return; |
1868 | |
2506 | |
1869 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2507 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2508 | |
|
|
2509 | EV_FREQUENT_CHECK; |
1870 | |
2510 | |
1871 | wlist_del (&anfds[w->fd].head, (WL)w); |
2511 | wlist_del (&anfds[w->fd].head, (WL)w); |
1872 | ev_stop (EV_A_ (W)w); |
2512 | ev_stop (EV_A_ (W)w); |
1873 | |
2513 | |
1874 | fd_change (EV_A_ w->fd, 1); |
2514 | fd_change (EV_A_ w->fd, 1); |
|
|
2515 | |
|
|
2516 | EV_FREQUENT_CHECK; |
1875 | } |
2517 | } |
1876 | |
2518 | |
1877 | void noinline |
2519 | void noinline |
1878 | ev_timer_start (EV_P_ ev_timer *w) |
2520 | ev_timer_start (EV_P_ ev_timer *w) |
1879 | { |
2521 | { |
1880 | if (expect_false (ev_is_active (w))) |
2522 | if (expect_false (ev_is_active (w))) |
1881 | return; |
2523 | return; |
1882 | |
2524 | |
1883 | ((WT)w)->at += mn_now; |
2525 | ev_at (w) += mn_now; |
1884 | |
2526 | |
1885 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2527 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1886 | |
2528 | |
|
|
2529 | EV_FREQUENT_CHECK; |
|
|
2530 | |
|
|
2531 | ++timercnt; |
1887 | ev_start (EV_A_ (W)w, ++timercnt); |
2532 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1888 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2533 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1889 | timers [timercnt - 1] = (WT)w; |
2534 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1890 | upheap (timers, timercnt - 1); |
2535 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2536 | upheap (timers, ev_active (w)); |
1891 | |
2537 | |
|
|
2538 | EV_FREQUENT_CHECK; |
|
|
2539 | |
1892 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2540 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1893 | } |
2541 | } |
1894 | |
2542 | |
1895 | void noinline |
2543 | void noinline |
1896 | ev_timer_stop (EV_P_ ev_timer *w) |
2544 | ev_timer_stop (EV_P_ ev_timer *w) |
1897 | { |
2545 | { |
1898 | clear_pending (EV_A_ (W)w); |
2546 | clear_pending (EV_A_ (W)w); |
1899 | if (expect_false (!ev_is_active (w))) |
2547 | if (expect_false (!ev_is_active (w))) |
1900 | return; |
2548 | return; |
1901 | |
2549 | |
1902 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2550 | EV_FREQUENT_CHECK; |
1903 | |
2551 | |
1904 | { |
2552 | { |
1905 | int active = ((W)w)->active; |
2553 | int active = ev_active (w); |
1906 | |
2554 | |
|
|
2555 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2556 | |
|
|
2557 | --timercnt; |
|
|
2558 | |
1907 | if (expect_true (--active < --timercnt)) |
2559 | if (expect_true (active < timercnt + HEAP0)) |
1908 | { |
2560 | { |
1909 | timers [active] = timers [timercnt]; |
2561 | timers [active] = timers [timercnt + HEAP0]; |
1910 | adjustheap (timers, timercnt, active); |
2562 | adjustheap (timers, timercnt, active); |
1911 | } |
2563 | } |
1912 | } |
2564 | } |
1913 | |
2565 | |
1914 | ((WT)w)->at -= mn_now; |
2566 | EV_FREQUENT_CHECK; |
|
|
2567 | |
|
|
2568 | ev_at (w) -= mn_now; |
1915 | |
2569 | |
1916 | ev_stop (EV_A_ (W)w); |
2570 | ev_stop (EV_A_ (W)w); |
1917 | } |
2571 | } |
1918 | |
2572 | |
1919 | void noinline |
2573 | void noinline |
1920 | ev_timer_again (EV_P_ ev_timer *w) |
2574 | ev_timer_again (EV_P_ ev_timer *w) |
1921 | { |
2575 | { |
|
|
2576 | EV_FREQUENT_CHECK; |
|
|
2577 | |
1922 | if (ev_is_active (w)) |
2578 | if (ev_is_active (w)) |
1923 | { |
2579 | { |
1924 | if (w->repeat) |
2580 | if (w->repeat) |
1925 | { |
2581 | { |
1926 | ((WT)w)->at = mn_now + w->repeat; |
2582 | ev_at (w) = mn_now + w->repeat; |
|
|
2583 | ANHE_at_cache (timers [ev_active (w)]); |
1927 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2584 | adjustheap (timers, timercnt, ev_active (w)); |
1928 | } |
2585 | } |
1929 | else |
2586 | else |
1930 | ev_timer_stop (EV_A_ w); |
2587 | ev_timer_stop (EV_A_ w); |
1931 | } |
2588 | } |
1932 | else if (w->repeat) |
2589 | else if (w->repeat) |
1933 | { |
2590 | { |
1934 | w->at = w->repeat; |
2591 | ev_at (w) = w->repeat; |
1935 | ev_timer_start (EV_A_ w); |
2592 | ev_timer_start (EV_A_ w); |
1936 | } |
2593 | } |
|
|
2594 | |
|
|
2595 | EV_FREQUENT_CHECK; |
|
|
2596 | } |
|
|
2597 | |
|
|
2598 | ev_tstamp |
|
|
2599 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2600 | { |
|
|
2601 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1937 | } |
2602 | } |
1938 | |
2603 | |
1939 | #if EV_PERIODIC_ENABLE |
2604 | #if EV_PERIODIC_ENABLE |
1940 | void noinline |
2605 | void noinline |
1941 | ev_periodic_start (EV_P_ ev_periodic *w) |
2606 | ev_periodic_start (EV_P_ ev_periodic *w) |
1942 | { |
2607 | { |
1943 | if (expect_false (ev_is_active (w))) |
2608 | if (expect_false (ev_is_active (w))) |
1944 | return; |
2609 | return; |
1945 | |
2610 | |
1946 | if (w->reschedule_cb) |
2611 | if (w->reschedule_cb) |
1947 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2612 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1948 | else if (w->interval) |
2613 | else if (w->interval) |
1949 | { |
2614 | { |
1950 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2615 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1951 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2616 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1952 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2617 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1953 | } |
2618 | } |
1954 | else |
2619 | else |
1955 | ((WT)w)->at = w->offset; |
2620 | ev_at (w) = w->offset; |
1956 | |
2621 | |
|
|
2622 | EV_FREQUENT_CHECK; |
|
|
2623 | |
|
|
2624 | ++periodiccnt; |
1957 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2625 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1958 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2626 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1959 | periodics [periodiccnt - 1] = (WT)w; |
2627 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1960 | upheap (periodics, periodiccnt - 1); |
2628 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2629 | upheap (periodics, ev_active (w)); |
1961 | |
2630 | |
|
|
2631 | EV_FREQUENT_CHECK; |
|
|
2632 | |
1962 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2633 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1963 | } |
2634 | } |
1964 | |
2635 | |
1965 | void noinline |
2636 | void noinline |
1966 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2637 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1967 | { |
2638 | { |
1968 | clear_pending (EV_A_ (W)w); |
2639 | clear_pending (EV_A_ (W)w); |
1969 | if (expect_false (!ev_is_active (w))) |
2640 | if (expect_false (!ev_is_active (w))) |
1970 | return; |
2641 | return; |
1971 | |
2642 | |
1972 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2643 | EV_FREQUENT_CHECK; |
1973 | |
2644 | |
1974 | { |
2645 | { |
1975 | int active = ((W)w)->active; |
2646 | int active = ev_active (w); |
1976 | |
2647 | |
|
|
2648 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2649 | |
|
|
2650 | --periodiccnt; |
|
|
2651 | |
1977 | if (expect_true (--active < --periodiccnt)) |
2652 | if (expect_true (active < periodiccnt + HEAP0)) |
1978 | { |
2653 | { |
1979 | periodics [active] = periodics [periodiccnt]; |
2654 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1980 | adjustheap (periodics, periodiccnt, active); |
2655 | adjustheap (periodics, periodiccnt, active); |
1981 | } |
2656 | } |
1982 | } |
2657 | } |
1983 | |
2658 | |
|
|
2659 | EV_FREQUENT_CHECK; |
|
|
2660 | |
1984 | ev_stop (EV_A_ (W)w); |
2661 | ev_stop (EV_A_ (W)w); |
1985 | } |
2662 | } |
1986 | |
2663 | |
1987 | void noinline |
2664 | void noinline |
1988 | ev_periodic_again (EV_P_ ev_periodic *w) |
2665 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1998 | #endif |
2675 | #endif |
1999 | |
2676 | |
2000 | void noinline |
2677 | void noinline |
2001 | ev_signal_start (EV_P_ ev_signal *w) |
2678 | ev_signal_start (EV_P_ ev_signal *w) |
2002 | { |
2679 | { |
2003 | #if EV_MULTIPLICITY |
|
|
2004 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2005 | #endif |
|
|
2006 | if (expect_false (ev_is_active (w))) |
2680 | if (expect_false (ev_is_active (w))) |
2007 | return; |
2681 | return; |
2008 | |
2682 | |
2009 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2683 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2010 | |
2684 | |
2011 | evpipe_init (EV_A); |
2685 | #if EV_MULTIPLICITY |
|
|
2686 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2687 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2012 | |
2688 | |
|
|
2689 | signals [w->signum - 1].loop = EV_A; |
|
|
2690 | #endif |
|
|
2691 | |
|
|
2692 | EV_FREQUENT_CHECK; |
|
|
2693 | |
|
|
2694 | #if EV_USE_SIGNALFD |
|
|
2695 | if (sigfd == -2) |
2013 | { |
2696 | { |
2014 | #ifndef _WIN32 |
2697 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2015 | sigset_t full, prev; |
2698 | if (sigfd < 0 && errno == EINVAL) |
2016 | sigfillset (&full); |
2699 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2017 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2018 | #endif |
|
|
2019 | |
2700 | |
2020 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2701 | if (sigfd >= 0) |
|
|
2702 | { |
|
|
2703 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2021 | |
2704 | |
2022 | #ifndef _WIN32 |
2705 | sigemptyset (&sigfd_set); |
2023 | sigprocmask (SIG_SETMASK, &prev, 0); |
2706 | |
2024 | #endif |
2707 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2708 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2709 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2710 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2711 | } |
2025 | } |
2712 | } |
|
|
2713 | |
|
|
2714 | if (sigfd >= 0) |
|
|
2715 | { |
|
|
2716 | /* TODO: check .head */ |
|
|
2717 | sigaddset (&sigfd_set, w->signum); |
|
|
2718 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2719 | |
|
|
2720 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2721 | } |
|
|
2722 | #endif |
2026 | |
2723 | |
2027 | ev_start (EV_A_ (W)w, 1); |
2724 | ev_start (EV_A_ (W)w, 1); |
2028 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2725 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2029 | |
2726 | |
2030 | if (!((WL)w)->next) |
2727 | if (!((WL)w)->next) |
|
|
2728 | # if EV_USE_SIGNALFD |
|
|
2729 | if (sigfd < 0) /*TODO*/ |
|
|
2730 | # endif |
2031 | { |
2731 | { |
2032 | #if _WIN32 |
2732 | # if _WIN32 |
2033 | signal (w->signum, ev_sighandler); |
2733 | signal (w->signum, ev_sighandler); |
2034 | #else |
2734 | # else |
2035 | struct sigaction sa; |
2735 | struct sigaction sa; |
|
|
2736 | |
|
|
2737 | evpipe_init (EV_A); |
|
|
2738 | |
2036 | sa.sa_handler = ev_sighandler; |
2739 | sa.sa_handler = ev_sighandler; |
2037 | sigfillset (&sa.sa_mask); |
2740 | sigfillset (&sa.sa_mask); |
2038 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2741 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2039 | sigaction (w->signum, &sa, 0); |
2742 | sigaction (w->signum, &sa, 0); |
|
|
2743 | |
|
|
2744 | sigemptyset (&sa.sa_mask); |
|
|
2745 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2746 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2040 | #endif |
2747 | #endif |
2041 | } |
2748 | } |
|
|
2749 | |
|
|
2750 | EV_FREQUENT_CHECK; |
2042 | } |
2751 | } |
2043 | |
2752 | |
2044 | void noinline |
2753 | void noinline |
2045 | ev_signal_stop (EV_P_ ev_signal *w) |
2754 | ev_signal_stop (EV_P_ ev_signal *w) |
2046 | { |
2755 | { |
2047 | clear_pending (EV_A_ (W)w); |
2756 | clear_pending (EV_A_ (W)w); |
2048 | if (expect_false (!ev_is_active (w))) |
2757 | if (expect_false (!ev_is_active (w))) |
2049 | return; |
2758 | return; |
2050 | |
2759 | |
|
|
2760 | EV_FREQUENT_CHECK; |
|
|
2761 | |
2051 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2762 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2052 | ev_stop (EV_A_ (W)w); |
2763 | ev_stop (EV_A_ (W)w); |
2053 | |
2764 | |
2054 | if (!signals [w->signum - 1].head) |
2765 | if (!signals [w->signum - 1].head) |
|
|
2766 | { |
|
|
2767 | #if EV_MULTIPLICITY |
|
|
2768 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2769 | #endif |
|
|
2770 | #if EV_USE_SIGNALFD |
|
|
2771 | if (sigfd >= 0) |
|
|
2772 | { |
|
|
2773 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2774 | sigdelset (&sigfd_set, w->signum); |
|
|
2775 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2776 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2777 | /*TODO: maybe unblock signal? */ |
|
|
2778 | } |
|
|
2779 | else |
|
|
2780 | #endif |
2055 | signal (w->signum, SIG_DFL); |
2781 | signal (w->signum, SIG_DFL); |
|
|
2782 | } |
|
|
2783 | |
|
|
2784 | EV_FREQUENT_CHECK; |
2056 | } |
2785 | } |
2057 | |
2786 | |
2058 | void |
2787 | void |
2059 | ev_child_start (EV_P_ ev_child *w) |
2788 | ev_child_start (EV_P_ ev_child *w) |
2060 | { |
2789 | { |
2061 | #if EV_MULTIPLICITY |
2790 | #if EV_MULTIPLICITY |
2062 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2791 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2063 | #endif |
2792 | #endif |
2064 | if (expect_false (ev_is_active (w))) |
2793 | if (expect_false (ev_is_active (w))) |
2065 | return; |
2794 | return; |
2066 | |
2795 | |
|
|
2796 | EV_FREQUENT_CHECK; |
|
|
2797 | |
2067 | ev_start (EV_A_ (W)w, 1); |
2798 | ev_start (EV_A_ (W)w, 1); |
2068 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2799 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2800 | |
|
|
2801 | EV_FREQUENT_CHECK; |
2069 | } |
2802 | } |
2070 | |
2803 | |
2071 | void |
2804 | void |
2072 | ev_child_stop (EV_P_ ev_child *w) |
2805 | ev_child_stop (EV_P_ ev_child *w) |
2073 | { |
2806 | { |
2074 | clear_pending (EV_A_ (W)w); |
2807 | clear_pending (EV_A_ (W)w); |
2075 | if (expect_false (!ev_is_active (w))) |
2808 | if (expect_false (!ev_is_active (w))) |
2076 | return; |
2809 | return; |
2077 | |
2810 | |
|
|
2811 | EV_FREQUENT_CHECK; |
|
|
2812 | |
2078 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2813 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2079 | ev_stop (EV_A_ (W)w); |
2814 | ev_stop (EV_A_ (W)w); |
|
|
2815 | |
|
|
2816 | EV_FREQUENT_CHECK; |
2080 | } |
2817 | } |
2081 | |
2818 | |
2082 | #if EV_STAT_ENABLE |
2819 | #if EV_STAT_ENABLE |
2083 | |
2820 | |
2084 | # ifdef _WIN32 |
2821 | # ifdef _WIN32 |
2085 | # undef lstat |
2822 | # undef lstat |
2086 | # define lstat(a,b) _stati64 (a,b) |
2823 | # define lstat(a,b) _stati64 (a,b) |
2087 | # endif |
2824 | # endif |
2088 | |
2825 | |
2089 | #define DEF_STAT_INTERVAL 5.0074891 |
2826 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2827 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2090 | #define MIN_STAT_INTERVAL 0.1074891 |
2828 | #define MIN_STAT_INTERVAL 0.1074891 |
2091 | |
2829 | |
2092 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2830 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2093 | |
2831 | |
2094 | #if EV_USE_INOTIFY |
2832 | #if EV_USE_INOTIFY |
2095 | # define EV_INOTIFY_BUFSIZE 8192 |
2833 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2099 | { |
2837 | { |
2100 | 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); |
2838 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2101 | |
2839 | |
2102 | if (w->wd < 0) |
2840 | if (w->wd < 0) |
2103 | { |
2841 | { |
|
|
2842 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2104 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2843 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2105 | |
2844 | |
2106 | /* monitor some parent directory for speedup hints */ |
2845 | /* monitor some parent directory for speedup hints */ |
|
|
2846 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2847 | /* but an efficiency issue only */ |
2107 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2848 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2108 | { |
2849 | { |
2109 | char path [4096]; |
2850 | char path [4096]; |
2110 | strcpy (path, w->path); |
2851 | strcpy (path, w->path); |
2111 | |
2852 | |
… | |
… | |
2114 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2855 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2115 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2856 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2116 | |
2857 | |
2117 | char *pend = strrchr (path, '/'); |
2858 | char *pend = strrchr (path, '/'); |
2118 | |
2859 | |
2119 | if (!pend) |
2860 | if (!pend || pend == path) |
2120 | break; /* whoops, no '/', complain to your admin */ |
2861 | break; |
2121 | |
2862 | |
2122 | *pend = 0; |
2863 | *pend = 0; |
2123 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2864 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2124 | } |
2865 | } |
2125 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2866 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2126 | } |
2867 | } |
2127 | } |
2868 | } |
2128 | else |
|
|
2129 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2130 | |
2869 | |
2131 | if (w->wd >= 0) |
2870 | if (w->wd >= 0) |
|
|
2871 | { |
|
|
2872 | struct statfs sfs; |
|
|
2873 | |
2132 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2874 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2875 | |
|
|
2876 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2877 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2878 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2879 | |
|
|
2880 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2881 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2882 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2883 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2884 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2885 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2886 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2887 | return; |
|
|
2888 | |
|
|
2889 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2890 | ev_timer_again (EV_A_ &w->timer); |
|
|
2891 | } |
2133 | } |
2892 | } |
2134 | |
2893 | |
2135 | static void noinline |
2894 | static void noinline |
2136 | infy_del (EV_P_ ev_stat *w) |
2895 | infy_del (EV_P_ ev_stat *w) |
2137 | { |
2896 | { |
… | |
… | |
2151 | |
2910 | |
2152 | static void noinline |
2911 | static void noinline |
2153 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2912 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2154 | { |
2913 | { |
2155 | if (slot < 0) |
2914 | if (slot < 0) |
2156 | /* overflow, need to check for all hahs slots */ |
2915 | /* overflow, need to check for all hash slots */ |
2157 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2916 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2158 | infy_wd (EV_A_ slot, wd, ev); |
2917 | infy_wd (EV_A_ slot, wd, ev); |
2159 | else |
2918 | else |
2160 | { |
2919 | { |
2161 | WL w_; |
2920 | WL w_; |
… | |
… | |
2167 | |
2926 | |
2168 | if (w->wd == wd || wd == -1) |
2927 | if (w->wd == wd || wd == -1) |
2169 | { |
2928 | { |
2170 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2929 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2171 | { |
2930 | { |
|
|
2931 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2172 | w->wd = -1; |
2932 | w->wd = -1; |
2173 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2933 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2174 | } |
2934 | } |
2175 | |
2935 | |
2176 | stat_timer_cb (EV_A_ &w->timer, 0); |
2936 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2189 | |
2949 | |
2190 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2950 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2191 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2951 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2192 | } |
2952 | } |
2193 | |
2953 | |
2194 | void inline_size |
2954 | inline_size void |
|
|
2955 | check_2625 (EV_P) |
|
|
2956 | { |
|
|
2957 | /* kernels < 2.6.25 are borked |
|
|
2958 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2959 | */ |
|
|
2960 | struct utsname buf; |
|
|
2961 | int major, minor, micro; |
|
|
2962 | |
|
|
2963 | if (uname (&buf)) |
|
|
2964 | return; |
|
|
2965 | |
|
|
2966 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2967 | return; |
|
|
2968 | |
|
|
2969 | if (major < 2 |
|
|
2970 | || (major == 2 && minor < 6) |
|
|
2971 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2972 | return; |
|
|
2973 | |
|
|
2974 | fs_2625 = 1; |
|
|
2975 | } |
|
|
2976 | |
|
|
2977 | inline_size void |
2195 | infy_init (EV_P) |
2978 | infy_init (EV_P) |
2196 | { |
2979 | { |
2197 | if (fs_fd != -2) |
2980 | if (fs_fd != -2) |
2198 | return; |
2981 | return; |
|
|
2982 | |
|
|
2983 | fs_fd = -1; |
|
|
2984 | |
|
|
2985 | check_2625 (EV_A); |
2199 | |
2986 | |
2200 | fs_fd = inotify_init (); |
2987 | fs_fd = inotify_init (); |
2201 | |
2988 | |
2202 | if (fs_fd >= 0) |
2989 | if (fs_fd >= 0) |
2203 | { |
2990 | { |
… | |
… | |
2205 | ev_set_priority (&fs_w, EV_MAXPRI); |
2992 | ev_set_priority (&fs_w, EV_MAXPRI); |
2206 | ev_io_start (EV_A_ &fs_w); |
2993 | ev_io_start (EV_A_ &fs_w); |
2207 | } |
2994 | } |
2208 | } |
2995 | } |
2209 | |
2996 | |
2210 | void inline_size |
2997 | inline_size void |
2211 | infy_fork (EV_P) |
2998 | infy_fork (EV_P) |
2212 | { |
2999 | { |
2213 | int slot; |
3000 | int slot; |
2214 | |
3001 | |
2215 | if (fs_fd < 0) |
3002 | if (fs_fd < 0) |
… | |
… | |
2231 | w->wd = -1; |
3018 | w->wd = -1; |
2232 | |
3019 | |
2233 | if (fs_fd >= 0) |
3020 | if (fs_fd >= 0) |
2234 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2235 | else |
3022 | else |
2236 | ev_timer_start (EV_A_ &w->timer); |
3023 | ev_timer_again (EV_A_ &w->timer); |
2237 | } |
3024 | } |
2238 | |
|
|
2239 | } |
3025 | } |
2240 | } |
3026 | } |
2241 | |
3027 | |
|
|
3028 | #endif |
|
|
3029 | |
|
|
3030 | #ifdef _WIN32 |
|
|
3031 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3032 | #else |
|
|
3033 | # define EV_LSTAT(p,b) lstat (p, b) |
2242 | #endif |
3034 | #endif |
2243 | |
3035 | |
2244 | void |
3036 | void |
2245 | ev_stat_stat (EV_P_ ev_stat *w) |
3037 | ev_stat_stat (EV_P_ ev_stat *w) |
2246 | { |
3038 | { |
… | |
… | |
2273 | || w->prev.st_atime != w->attr.st_atime |
3065 | || w->prev.st_atime != w->attr.st_atime |
2274 | || w->prev.st_mtime != w->attr.st_mtime |
3066 | || w->prev.st_mtime != w->attr.st_mtime |
2275 | || w->prev.st_ctime != w->attr.st_ctime |
3067 | || w->prev.st_ctime != w->attr.st_ctime |
2276 | ) { |
3068 | ) { |
2277 | #if EV_USE_INOTIFY |
3069 | #if EV_USE_INOTIFY |
|
|
3070 | if (fs_fd >= 0) |
|
|
3071 | { |
2278 | infy_del (EV_A_ w); |
3072 | infy_del (EV_A_ w); |
2279 | infy_add (EV_A_ w); |
3073 | infy_add (EV_A_ w); |
2280 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3074 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3075 | } |
2281 | #endif |
3076 | #endif |
2282 | |
3077 | |
2283 | ev_feed_event (EV_A_ w, EV_STAT); |
3078 | ev_feed_event (EV_A_ w, EV_STAT); |
2284 | } |
3079 | } |
2285 | } |
3080 | } |
… | |
… | |
2288 | ev_stat_start (EV_P_ ev_stat *w) |
3083 | ev_stat_start (EV_P_ ev_stat *w) |
2289 | { |
3084 | { |
2290 | if (expect_false (ev_is_active (w))) |
3085 | if (expect_false (ev_is_active (w))) |
2291 | return; |
3086 | return; |
2292 | |
3087 | |
2293 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2294 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2295 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2296 | |
|
|
2297 | ev_stat_stat (EV_A_ w); |
3088 | ev_stat_stat (EV_A_ w); |
2298 | |
3089 | |
|
|
3090 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2299 | if (w->interval < MIN_STAT_INTERVAL) |
3091 | w->interval = MIN_STAT_INTERVAL; |
2300 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2301 | |
3092 | |
2302 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3093 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2303 | ev_set_priority (&w->timer, ev_priority (w)); |
3094 | ev_set_priority (&w->timer, ev_priority (w)); |
2304 | |
3095 | |
2305 | #if EV_USE_INOTIFY |
3096 | #if EV_USE_INOTIFY |
2306 | infy_init (EV_A); |
3097 | infy_init (EV_A); |
2307 | |
3098 | |
2308 | if (fs_fd >= 0) |
3099 | if (fs_fd >= 0) |
2309 | infy_add (EV_A_ w); |
3100 | infy_add (EV_A_ w); |
2310 | else |
3101 | else |
2311 | #endif |
3102 | #endif |
2312 | ev_timer_start (EV_A_ &w->timer); |
3103 | ev_timer_again (EV_A_ &w->timer); |
2313 | |
3104 | |
2314 | ev_start (EV_A_ (W)w, 1); |
3105 | ev_start (EV_A_ (W)w, 1); |
|
|
3106 | |
|
|
3107 | EV_FREQUENT_CHECK; |
2315 | } |
3108 | } |
2316 | |
3109 | |
2317 | void |
3110 | void |
2318 | ev_stat_stop (EV_P_ ev_stat *w) |
3111 | ev_stat_stop (EV_P_ ev_stat *w) |
2319 | { |
3112 | { |
2320 | clear_pending (EV_A_ (W)w); |
3113 | clear_pending (EV_A_ (W)w); |
2321 | if (expect_false (!ev_is_active (w))) |
3114 | if (expect_false (!ev_is_active (w))) |
2322 | return; |
3115 | return; |
2323 | |
3116 | |
|
|
3117 | EV_FREQUENT_CHECK; |
|
|
3118 | |
2324 | #if EV_USE_INOTIFY |
3119 | #if EV_USE_INOTIFY |
2325 | infy_del (EV_A_ w); |
3120 | infy_del (EV_A_ w); |
2326 | #endif |
3121 | #endif |
2327 | ev_timer_stop (EV_A_ &w->timer); |
3122 | ev_timer_stop (EV_A_ &w->timer); |
2328 | |
3123 | |
2329 | ev_stop (EV_A_ (W)w); |
3124 | ev_stop (EV_A_ (W)w); |
|
|
3125 | |
|
|
3126 | EV_FREQUENT_CHECK; |
2330 | } |
3127 | } |
2331 | #endif |
3128 | #endif |
2332 | |
3129 | |
2333 | #if EV_IDLE_ENABLE |
3130 | #if EV_IDLE_ENABLE |
2334 | void |
3131 | void |
… | |
… | |
2336 | { |
3133 | { |
2337 | if (expect_false (ev_is_active (w))) |
3134 | if (expect_false (ev_is_active (w))) |
2338 | return; |
3135 | return; |
2339 | |
3136 | |
2340 | pri_adjust (EV_A_ (W)w); |
3137 | pri_adjust (EV_A_ (W)w); |
|
|
3138 | |
|
|
3139 | EV_FREQUENT_CHECK; |
2341 | |
3140 | |
2342 | { |
3141 | { |
2343 | int active = ++idlecnt [ABSPRI (w)]; |
3142 | int active = ++idlecnt [ABSPRI (w)]; |
2344 | |
3143 | |
2345 | ++idleall; |
3144 | ++idleall; |
2346 | ev_start (EV_A_ (W)w, active); |
3145 | ev_start (EV_A_ (W)w, active); |
2347 | |
3146 | |
2348 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3147 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2349 | idles [ABSPRI (w)][active - 1] = w; |
3148 | idles [ABSPRI (w)][active - 1] = w; |
2350 | } |
3149 | } |
|
|
3150 | |
|
|
3151 | EV_FREQUENT_CHECK; |
2351 | } |
3152 | } |
2352 | |
3153 | |
2353 | void |
3154 | void |
2354 | ev_idle_stop (EV_P_ ev_idle *w) |
3155 | ev_idle_stop (EV_P_ ev_idle *w) |
2355 | { |
3156 | { |
2356 | clear_pending (EV_A_ (W)w); |
3157 | clear_pending (EV_A_ (W)w); |
2357 | if (expect_false (!ev_is_active (w))) |
3158 | if (expect_false (!ev_is_active (w))) |
2358 | return; |
3159 | return; |
2359 | |
3160 | |
|
|
3161 | EV_FREQUENT_CHECK; |
|
|
3162 | |
2360 | { |
3163 | { |
2361 | int active = ((W)w)->active; |
3164 | int active = ev_active (w); |
2362 | |
3165 | |
2363 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3166 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2364 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3167 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2365 | |
3168 | |
2366 | ev_stop (EV_A_ (W)w); |
3169 | ev_stop (EV_A_ (W)w); |
2367 | --idleall; |
3170 | --idleall; |
2368 | } |
3171 | } |
|
|
3172 | |
|
|
3173 | EV_FREQUENT_CHECK; |
2369 | } |
3174 | } |
2370 | #endif |
3175 | #endif |
2371 | |
3176 | |
2372 | void |
3177 | void |
2373 | ev_prepare_start (EV_P_ ev_prepare *w) |
3178 | ev_prepare_start (EV_P_ ev_prepare *w) |
2374 | { |
3179 | { |
2375 | if (expect_false (ev_is_active (w))) |
3180 | if (expect_false (ev_is_active (w))) |
2376 | return; |
3181 | return; |
|
|
3182 | |
|
|
3183 | EV_FREQUENT_CHECK; |
2377 | |
3184 | |
2378 | ev_start (EV_A_ (W)w, ++preparecnt); |
3185 | ev_start (EV_A_ (W)w, ++preparecnt); |
2379 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3186 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2380 | prepares [preparecnt - 1] = w; |
3187 | prepares [preparecnt - 1] = w; |
|
|
3188 | |
|
|
3189 | EV_FREQUENT_CHECK; |
2381 | } |
3190 | } |
2382 | |
3191 | |
2383 | void |
3192 | void |
2384 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3193 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2385 | { |
3194 | { |
2386 | clear_pending (EV_A_ (W)w); |
3195 | clear_pending (EV_A_ (W)w); |
2387 | if (expect_false (!ev_is_active (w))) |
3196 | if (expect_false (!ev_is_active (w))) |
2388 | return; |
3197 | return; |
2389 | |
3198 | |
|
|
3199 | EV_FREQUENT_CHECK; |
|
|
3200 | |
2390 | { |
3201 | { |
2391 | int active = ((W)w)->active; |
3202 | int active = ev_active (w); |
|
|
3203 | |
2392 | prepares [active - 1] = prepares [--preparecnt]; |
3204 | prepares [active - 1] = prepares [--preparecnt]; |
2393 | ((W)prepares [active - 1])->active = active; |
3205 | ev_active (prepares [active - 1]) = active; |
2394 | } |
3206 | } |
2395 | |
3207 | |
2396 | ev_stop (EV_A_ (W)w); |
3208 | ev_stop (EV_A_ (W)w); |
|
|
3209 | |
|
|
3210 | EV_FREQUENT_CHECK; |
2397 | } |
3211 | } |
2398 | |
3212 | |
2399 | void |
3213 | void |
2400 | ev_check_start (EV_P_ ev_check *w) |
3214 | ev_check_start (EV_P_ ev_check *w) |
2401 | { |
3215 | { |
2402 | if (expect_false (ev_is_active (w))) |
3216 | if (expect_false (ev_is_active (w))) |
2403 | return; |
3217 | return; |
|
|
3218 | |
|
|
3219 | EV_FREQUENT_CHECK; |
2404 | |
3220 | |
2405 | ev_start (EV_A_ (W)w, ++checkcnt); |
3221 | ev_start (EV_A_ (W)w, ++checkcnt); |
2406 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3222 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2407 | checks [checkcnt - 1] = w; |
3223 | checks [checkcnt - 1] = w; |
|
|
3224 | |
|
|
3225 | EV_FREQUENT_CHECK; |
2408 | } |
3226 | } |
2409 | |
3227 | |
2410 | void |
3228 | void |
2411 | ev_check_stop (EV_P_ ev_check *w) |
3229 | ev_check_stop (EV_P_ ev_check *w) |
2412 | { |
3230 | { |
2413 | clear_pending (EV_A_ (W)w); |
3231 | clear_pending (EV_A_ (W)w); |
2414 | if (expect_false (!ev_is_active (w))) |
3232 | if (expect_false (!ev_is_active (w))) |
2415 | return; |
3233 | return; |
2416 | |
3234 | |
|
|
3235 | EV_FREQUENT_CHECK; |
|
|
3236 | |
2417 | { |
3237 | { |
2418 | int active = ((W)w)->active; |
3238 | int active = ev_active (w); |
|
|
3239 | |
2419 | checks [active - 1] = checks [--checkcnt]; |
3240 | checks [active - 1] = checks [--checkcnt]; |
2420 | ((W)checks [active - 1])->active = active; |
3241 | ev_active (checks [active - 1]) = active; |
2421 | } |
3242 | } |
2422 | |
3243 | |
2423 | ev_stop (EV_A_ (W)w); |
3244 | ev_stop (EV_A_ (W)w); |
|
|
3245 | |
|
|
3246 | EV_FREQUENT_CHECK; |
2424 | } |
3247 | } |
2425 | |
3248 | |
2426 | #if EV_EMBED_ENABLE |
3249 | #if EV_EMBED_ENABLE |
2427 | void noinline |
3250 | void noinline |
2428 | ev_embed_sweep (EV_P_ ev_embed *w) |
3251 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2445 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3268 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2446 | { |
3269 | { |
2447 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3270 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2448 | |
3271 | |
2449 | { |
3272 | { |
2450 | struct ev_loop *loop = w->other; |
3273 | EV_P = w->other; |
2451 | |
3274 | |
2452 | while (fdchangecnt) |
3275 | while (fdchangecnt) |
2453 | { |
3276 | { |
2454 | fd_reify (EV_A); |
3277 | fd_reify (EV_A); |
2455 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3278 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2456 | } |
3279 | } |
2457 | } |
3280 | } |
2458 | } |
3281 | } |
2459 | |
3282 | |
|
|
3283 | static void |
|
|
3284 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3285 | { |
|
|
3286 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3287 | |
|
|
3288 | ev_embed_stop (EV_A_ w); |
|
|
3289 | |
|
|
3290 | { |
|
|
3291 | EV_P = w->other; |
|
|
3292 | |
|
|
3293 | ev_loop_fork (EV_A); |
|
|
3294 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3295 | } |
|
|
3296 | |
|
|
3297 | ev_embed_start (EV_A_ w); |
|
|
3298 | } |
|
|
3299 | |
2460 | #if 0 |
3300 | #if 0 |
2461 | static void |
3301 | static void |
2462 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3302 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2463 | { |
3303 | { |
2464 | ev_idle_stop (EV_A_ idle); |
3304 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2470 | { |
3310 | { |
2471 | if (expect_false (ev_is_active (w))) |
3311 | if (expect_false (ev_is_active (w))) |
2472 | return; |
3312 | return; |
2473 | |
3313 | |
2474 | { |
3314 | { |
2475 | struct ev_loop *loop = w->other; |
3315 | EV_P = w->other; |
2476 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3316 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2477 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3317 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2478 | } |
3318 | } |
|
|
3319 | |
|
|
3320 | EV_FREQUENT_CHECK; |
2479 | |
3321 | |
2480 | ev_set_priority (&w->io, ev_priority (w)); |
3322 | ev_set_priority (&w->io, ev_priority (w)); |
2481 | ev_io_start (EV_A_ &w->io); |
3323 | ev_io_start (EV_A_ &w->io); |
2482 | |
3324 | |
2483 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3325 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2484 | ev_set_priority (&w->prepare, EV_MINPRI); |
3326 | ev_set_priority (&w->prepare, EV_MINPRI); |
2485 | ev_prepare_start (EV_A_ &w->prepare); |
3327 | ev_prepare_start (EV_A_ &w->prepare); |
2486 | |
3328 | |
|
|
3329 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3330 | ev_fork_start (EV_A_ &w->fork); |
|
|
3331 | |
2487 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3332 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2488 | |
3333 | |
2489 | ev_start (EV_A_ (W)w, 1); |
3334 | ev_start (EV_A_ (W)w, 1); |
|
|
3335 | |
|
|
3336 | EV_FREQUENT_CHECK; |
2490 | } |
3337 | } |
2491 | |
3338 | |
2492 | void |
3339 | void |
2493 | ev_embed_stop (EV_P_ ev_embed *w) |
3340 | ev_embed_stop (EV_P_ ev_embed *w) |
2494 | { |
3341 | { |
2495 | clear_pending (EV_A_ (W)w); |
3342 | clear_pending (EV_A_ (W)w); |
2496 | if (expect_false (!ev_is_active (w))) |
3343 | if (expect_false (!ev_is_active (w))) |
2497 | return; |
3344 | return; |
2498 | |
3345 | |
|
|
3346 | EV_FREQUENT_CHECK; |
|
|
3347 | |
2499 | ev_io_stop (EV_A_ &w->io); |
3348 | ev_io_stop (EV_A_ &w->io); |
2500 | ev_prepare_stop (EV_A_ &w->prepare); |
3349 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3350 | ev_fork_stop (EV_A_ &w->fork); |
2501 | |
3351 | |
2502 | ev_stop (EV_A_ (W)w); |
3352 | EV_FREQUENT_CHECK; |
2503 | } |
3353 | } |
2504 | #endif |
3354 | #endif |
2505 | |
3355 | |
2506 | #if EV_FORK_ENABLE |
3356 | #if EV_FORK_ENABLE |
2507 | void |
3357 | void |
2508 | ev_fork_start (EV_P_ ev_fork *w) |
3358 | ev_fork_start (EV_P_ ev_fork *w) |
2509 | { |
3359 | { |
2510 | if (expect_false (ev_is_active (w))) |
3360 | if (expect_false (ev_is_active (w))) |
2511 | return; |
3361 | return; |
|
|
3362 | |
|
|
3363 | EV_FREQUENT_CHECK; |
2512 | |
3364 | |
2513 | ev_start (EV_A_ (W)w, ++forkcnt); |
3365 | ev_start (EV_A_ (W)w, ++forkcnt); |
2514 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3366 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2515 | forks [forkcnt - 1] = w; |
3367 | forks [forkcnt - 1] = w; |
|
|
3368 | |
|
|
3369 | EV_FREQUENT_CHECK; |
2516 | } |
3370 | } |
2517 | |
3371 | |
2518 | void |
3372 | void |
2519 | ev_fork_stop (EV_P_ ev_fork *w) |
3373 | ev_fork_stop (EV_P_ ev_fork *w) |
2520 | { |
3374 | { |
2521 | clear_pending (EV_A_ (W)w); |
3375 | clear_pending (EV_A_ (W)w); |
2522 | if (expect_false (!ev_is_active (w))) |
3376 | if (expect_false (!ev_is_active (w))) |
2523 | return; |
3377 | return; |
2524 | |
3378 | |
|
|
3379 | EV_FREQUENT_CHECK; |
|
|
3380 | |
2525 | { |
3381 | { |
2526 | int active = ((W)w)->active; |
3382 | int active = ev_active (w); |
|
|
3383 | |
2527 | forks [active - 1] = forks [--forkcnt]; |
3384 | forks [active - 1] = forks [--forkcnt]; |
2528 | ((W)forks [active - 1])->active = active; |
3385 | ev_active (forks [active - 1]) = active; |
2529 | } |
3386 | } |
2530 | |
3387 | |
2531 | ev_stop (EV_A_ (W)w); |
3388 | ev_stop (EV_A_ (W)w); |
|
|
3389 | |
|
|
3390 | EV_FREQUENT_CHECK; |
2532 | } |
3391 | } |
2533 | #endif |
3392 | #endif |
2534 | |
3393 | |
2535 | #if EV_ASYNC_ENABLE |
3394 | #if EV_ASYNC_ENABLE |
2536 | void |
3395 | void |
… | |
… | |
2538 | { |
3397 | { |
2539 | if (expect_false (ev_is_active (w))) |
3398 | if (expect_false (ev_is_active (w))) |
2540 | return; |
3399 | return; |
2541 | |
3400 | |
2542 | evpipe_init (EV_A); |
3401 | evpipe_init (EV_A); |
|
|
3402 | |
|
|
3403 | EV_FREQUENT_CHECK; |
2543 | |
3404 | |
2544 | ev_start (EV_A_ (W)w, ++asynccnt); |
3405 | ev_start (EV_A_ (W)w, ++asynccnt); |
2545 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3406 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2546 | asyncs [asynccnt - 1] = w; |
3407 | asyncs [asynccnt - 1] = w; |
|
|
3408 | |
|
|
3409 | EV_FREQUENT_CHECK; |
2547 | } |
3410 | } |
2548 | |
3411 | |
2549 | void |
3412 | void |
2550 | ev_async_stop (EV_P_ ev_async *w) |
3413 | ev_async_stop (EV_P_ ev_async *w) |
2551 | { |
3414 | { |
2552 | clear_pending (EV_A_ (W)w); |
3415 | clear_pending (EV_A_ (W)w); |
2553 | if (expect_false (!ev_is_active (w))) |
3416 | if (expect_false (!ev_is_active (w))) |
2554 | return; |
3417 | return; |
2555 | |
3418 | |
|
|
3419 | EV_FREQUENT_CHECK; |
|
|
3420 | |
2556 | { |
3421 | { |
2557 | int active = ((W)w)->active; |
3422 | int active = ev_active (w); |
|
|
3423 | |
2558 | asyncs [active - 1] = asyncs [--asynccnt]; |
3424 | asyncs [active - 1] = asyncs [--asynccnt]; |
2559 | ((W)asyncs [active - 1])->active = active; |
3425 | ev_active (asyncs [active - 1]) = active; |
2560 | } |
3426 | } |
2561 | |
3427 | |
2562 | ev_stop (EV_A_ (W)w); |
3428 | ev_stop (EV_A_ (W)w); |
|
|
3429 | |
|
|
3430 | EV_FREQUENT_CHECK; |
2563 | } |
3431 | } |
2564 | |
3432 | |
2565 | void |
3433 | void |
2566 | ev_async_send (EV_P_ ev_async *w) |
3434 | ev_async_send (EV_P_ ev_async *w) |
2567 | { |
3435 | { |
2568 | w->sent = 1; |
3436 | w->sent = 1; |
2569 | evpipe_write (EV_A_ &gotasync); |
3437 | evpipe_write (EV_A_ &async_pending); |
2570 | } |
3438 | } |
2571 | #endif |
3439 | #endif |
2572 | |
3440 | |
2573 | /*****************************************************************************/ |
3441 | /*****************************************************************************/ |
2574 | |
3442 | |
… | |
… | |
2584 | once_cb (EV_P_ struct ev_once *once, int revents) |
3452 | once_cb (EV_P_ struct ev_once *once, int revents) |
2585 | { |
3453 | { |
2586 | void (*cb)(int revents, void *arg) = once->cb; |
3454 | void (*cb)(int revents, void *arg) = once->cb; |
2587 | void *arg = once->arg; |
3455 | void *arg = once->arg; |
2588 | |
3456 | |
2589 | ev_io_stop (EV_A_ &once->io); |
3457 | ev_io_stop (EV_A_ &once->io); |
2590 | ev_timer_stop (EV_A_ &once->to); |
3458 | ev_timer_stop (EV_A_ &once->to); |
2591 | ev_free (once); |
3459 | ev_free (once); |
2592 | |
3460 | |
2593 | cb (revents, arg); |
3461 | cb (revents, arg); |
2594 | } |
3462 | } |
2595 | |
3463 | |
2596 | static void |
3464 | static void |
2597 | once_cb_io (EV_P_ ev_io *w, int revents) |
3465 | once_cb_io (EV_P_ ev_io *w, int revents) |
2598 | { |
3466 | { |
2599 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3467 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3468 | |
|
|
3469 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2600 | } |
3470 | } |
2601 | |
3471 | |
2602 | static void |
3472 | static void |
2603 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3473 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2604 | { |
3474 | { |
2605 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3475 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3476 | |
|
|
3477 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2606 | } |
3478 | } |
2607 | |
3479 | |
2608 | void |
3480 | void |
2609 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3481 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2610 | { |
3482 | { |
… | |
… | |
2632 | ev_timer_set (&once->to, timeout, 0.); |
3504 | ev_timer_set (&once->to, timeout, 0.); |
2633 | ev_timer_start (EV_A_ &once->to); |
3505 | ev_timer_start (EV_A_ &once->to); |
2634 | } |
3506 | } |
2635 | } |
3507 | } |
2636 | |
3508 | |
|
|
3509 | /*****************************************************************************/ |
|
|
3510 | |
|
|
3511 | #if EV_WALK_ENABLE |
|
|
3512 | void |
|
|
3513 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3514 | { |
|
|
3515 | int i, j; |
|
|
3516 | ev_watcher_list *wl, *wn; |
|
|
3517 | |
|
|
3518 | if (types & (EV_IO | EV_EMBED)) |
|
|
3519 | for (i = 0; i < anfdmax; ++i) |
|
|
3520 | for (wl = anfds [i].head; wl; ) |
|
|
3521 | { |
|
|
3522 | wn = wl->next; |
|
|
3523 | |
|
|
3524 | #if EV_EMBED_ENABLE |
|
|
3525 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3526 | { |
|
|
3527 | if (types & EV_EMBED) |
|
|
3528 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3529 | } |
|
|
3530 | else |
|
|
3531 | #endif |
|
|
3532 | #if EV_USE_INOTIFY |
|
|
3533 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3534 | ; |
|
|
3535 | else |
|
|
3536 | #endif |
|
|
3537 | if ((ev_io *)wl != &pipe_w) |
|
|
3538 | if (types & EV_IO) |
|
|
3539 | cb (EV_A_ EV_IO, wl); |
|
|
3540 | |
|
|
3541 | wl = wn; |
|
|
3542 | } |
|
|
3543 | |
|
|
3544 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3545 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3546 | #if EV_STAT_ENABLE |
|
|
3547 | /*TODO: timer is not always active*/ |
|
|
3548 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3549 | { |
|
|
3550 | if (types & EV_STAT) |
|
|
3551 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3552 | } |
|
|
3553 | else |
|
|
3554 | #endif |
|
|
3555 | if (types & EV_TIMER) |
|
|
3556 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3557 | |
|
|
3558 | #if EV_PERIODIC_ENABLE |
|
|
3559 | if (types & EV_PERIODIC) |
|
|
3560 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3561 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3562 | #endif |
|
|
3563 | |
|
|
3564 | #if EV_IDLE_ENABLE |
|
|
3565 | if (types & EV_IDLE) |
|
|
3566 | for (j = NUMPRI; i--; ) |
|
|
3567 | for (i = idlecnt [j]; i--; ) |
|
|
3568 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3569 | #endif |
|
|
3570 | |
|
|
3571 | #if EV_FORK_ENABLE |
|
|
3572 | if (types & EV_FORK) |
|
|
3573 | for (i = forkcnt; i--; ) |
|
|
3574 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3575 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3576 | #endif |
|
|
3577 | |
|
|
3578 | #if EV_ASYNC_ENABLE |
|
|
3579 | if (types & EV_ASYNC) |
|
|
3580 | for (i = asynccnt; i--; ) |
|
|
3581 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3582 | #endif |
|
|
3583 | |
|
|
3584 | if (types & EV_PREPARE) |
|
|
3585 | for (i = preparecnt; i--; ) |
|
|
3586 | #if EV_EMBED_ENABLE |
|
|
3587 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3588 | #endif |
|
|
3589 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3590 | |
|
|
3591 | if (types & EV_CHECK) |
|
|
3592 | for (i = checkcnt; i--; ) |
|
|
3593 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3594 | |
|
|
3595 | if (types & EV_SIGNAL) |
|
|
3596 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3597 | for (wl = signals [i].head; wl; ) |
|
|
3598 | { |
|
|
3599 | wn = wl->next; |
|
|
3600 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3601 | wl = wn; |
|
|
3602 | } |
|
|
3603 | |
|
|
3604 | if (types & EV_CHILD) |
|
|
3605 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3606 | for (wl = childs [i]; wl; ) |
|
|
3607 | { |
|
|
3608 | wn = wl->next; |
|
|
3609 | cb (EV_A_ EV_CHILD, wl); |
|
|
3610 | wl = wn; |
|
|
3611 | } |
|
|
3612 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3613 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3614 | } |
|
|
3615 | #endif |
|
|
3616 | |
2637 | #if EV_MULTIPLICITY |
3617 | #if EV_MULTIPLICITY |
2638 | #include "ev_wrap.h" |
3618 | #include "ev_wrap.h" |
2639 | #endif |
3619 | #endif |
2640 | |
3620 | |
2641 | #ifdef __cplusplus |
3621 | #ifdef __cplusplus |