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 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
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 |
|
|
64 | # endif |
|
|
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 | |
|
|
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) |
|
|
195 | # define EV_NSIG (NSIG) |
|
|
196 | #elif defined(_NSIG) |
|
|
197 | # define EV_NSIG (_NSIG) |
|
|
198 | #elif defined (SIGMAX) |
|
|
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) |
|
|
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] */ |
|
|
210 | #elif defined (_sys_nsig) |
|
|
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 |
|
|
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__ >= 7)) |
|
|
308 | # define EV_USE_SIGNALFD 1 |
|
|
309 | # else |
|
|
310 | # define EV_USE_SIGNALFD 0 |
|
|
311 | # endif |
|
|
312 | #endif |
|
|
313 | |
|
|
314 | #if 0 /* debugging */ |
|
|
315 | # define EV_VERIFY 3 |
|
|
316 | # define EV_USE_4HEAP 1 |
|
|
317 | # define EV_HEAP_CACHE_AT 1 |
|
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318 | #endif |
|
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319 | |
|
|
320 | #ifndef EV_VERIFY |
|
|
321 | # define EV_VERIFY !EV_MINIMAL |
|
|
322 | #endif |
|
|
323 | |
240 | #ifndef EV_USE_4HEAP |
324 | #ifndef EV_USE_4HEAP |
241 | # define EV_USE_4HEAP !EV_MINIMAL |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
242 | #endif |
326 | #endif |
243 | |
327 | |
244 | #ifndef EV_HEAP_CACHE_AT |
328 | #ifndef EV_HEAP_CACHE_AT |
245 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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, */ |
|
|
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 |
|
|
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 |
246 | #endif |
344 | #endif |
247 | |
345 | |
248 | /* 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 */ |
249 | |
347 | |
250 | #ifndef CLOCK_MONOTONIC |
348 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
267 | # include <sys/select.h> |
365 | # include <sys/select.h> |
268 | # endif |
366 | # endif |
269 | #endif |
367 | #endif |
270 | |
368 | |
271 | #if EV_USE_INOTIFY |
369 | #if EV_USE_INOTIFY |
|
|
370 | # include <sys/utsname.h> |
|
|
371 | # include <sys/statfs.h> |
272 | # 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 |
273 | #endif |
378 | #endif |
274 | |
379 | |
275 | #if EV_SELECT_IS_WINSOCKET |
380 | #if EV_SELECT_IS_WINSOCKET |
276 | # include <winsock.h> |
381 | # include <winsock.h> |
277 | #endif |
382 | #endif |
278 | |
383 | |
279 | #if EV_USE_EVENTFD |
384 | #if EV_USE_EVENTFD |
280 | /* 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 */ |
281 | # 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 |
282 | # ifdef __cplusplus |
397 | # ifdef __cplusplus |
283 | extern "C" { |
398 | extern "C" { |
284 | # endif |
399 | # endif |
285 | int eventfd (unsigned int initval, int flags); |
400 | int eventfd (unsigned int initval, int flags); |
286 | # ifdef __cplusplus |
401 | # ifdef __cplusplus |
287 | } |
402 | } |
288 | # endif |
403 | # endif |
289 | #endif |
404 | #endif |
290 | |
405 | |
|
|
406 | #if EV_USE_SIGNALFD |
|
|
407 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
408 | # include <stdint.h> |
|
|
409 | # ifndef SFD_NONBLOCK |
|
|
410 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
411 | # endif |
|
|
412 | # ifndef SFD_CLOEXEC |
|
|
413 | # ifdef O_CLOEXEC |
|
|
414 | # define SFD_CLOEXEC O_CLOEXEC |
|
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415 | # else |
|
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416 | # define SFD_CLOEXEC 02000000 |
|
|
417 | # endif |
|
|
418 | # endif |
|
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419 | # ifdef __cplusplus |
|
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420 | extern "C" { |
|
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421 | # endif |
|
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422 | int signalfd (int fd, const sigset_t *mask, int flags); |
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423 | |
|
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424 | struct signalfd_siginfo |
|
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425 | { |
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426 | uint32_t ssi_signo; |
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427 | char pad[128 - sizeof (uint32_t)]; |
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428 | }; |
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429 | # ifdef __cplusplus |
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430 | } |
|
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431 | # endif |
|
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432 | #endif |
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433 | |
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434 | |
291 | /**/ |
435 | /**/ |
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436 | |
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437 | #if EV_VERIFY >= 3 |
|
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438 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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439 | #else |
|
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440 | # define EV_FREQUENT_CHECK do { } while (0) |
|
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441 | #endif |
292 | |
442 | |
293 | /* |
443 | /* |
294 | * This is used to avoid floating point rounding problems. |
444 | * This is used to avoid floating point rounding problems. |
295 | * It is added to ev_rt_now when scheduling periodics |
445 | * It is added to ev_rt_now when scheduling periodics |
296 | * to ensure progress, time-wise, even when rounding |
446 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
323 | # define inline_speed static noinline |
473 | # define inline_speed static noinline |
324 | #else |
474 | #else |
325 | # define inline_speed static inline |
475 | # define inline_speed static inline |
326 | #endif |
476 | #endif |
327 | |
477 | |
328 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
478 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
479 | |
|
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480 | #if EV_MINPRI == EV_MAXPRI |
|
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481 | # define ABSPRI(w) (((W)w), 0) |
|
|
482 | #else |
329 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
483 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
484 | #endif |
330 | |
485 | |
331 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
486 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
332 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
487 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
333 | |
488 | |
334 | typedef ev_watcher *W; |
489 | typedef ev_watcher *W; |
… | |
… | |
336 | typedef ev_watcher_time *WT; |
491 | typedef ev_watcher_time *WT; |
337 | |
492 | |
338 | #define ev_active(w) ((W)(w))->active |
493 | #define ev_active(w) ((W)(w))->active |
339 | #define ev_at(w) ((WT)(w))->at |
494 | #define ev_at(w) ((WT)(w))->at |
340 | |
495 | |
341 | #if EV_USE_MONOTONIC |
496 | #if EV_USE_REALTIME |
342 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
497 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
343 | /* giving it a reasonably high chance of working on typical architetcures */ |
498 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
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499 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
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500 | #endif |
|
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501 | |
|
|
502 | #if EV_USE_MONOTONIC |
344 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
503 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
504 | #endif |
|
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505 | |
|
|
506 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
507 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
508 | #endif |
|
|
509 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
510 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0) |
|
|
511 | #endif |
|
|
512 | #ifndef EV_WIN32_CLOSE_FD |
|
|
513 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
345 | #endif |
514 | #endif |
346 | |
515 | |
347 | #ifdef _WIN32 |
516 | #ifdef _WIN32 |
348 | # include "ev_win32.c" |
517 | # include "ev_win32.c" |
349 | #endif |
518 | #endif |
… | |
… | |
357 | { |
526 | { |
358 | syserr_cb = cb; |
527 | syserr_cb = cb; |
359 | } |
528 | } |
360 | |
529 | |
361 | static void noinline |
530 | static void noinline |
362 | syserr (const char *msg) |
531 | ev_syserr (const char *msg) |
363 | { |
532 | { |
364 | if (!msg) |
533 | if (!msg) |
365 | msg = "(libev) system error"; |
534 | msg = "(libev) system error"; |
366 | |
535 | |
367 | if (syserr_cb) |
536 | if (syserr_cb) |
… | |
… | |
413 | #define ev_malloc(size) ev_realloc (0, (size)) |
582 | #define ev_malloc(size) ev_realloc (0, (size)) |
414 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
583 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
415 | |
584 | |
416 | /*****************************************************************************/ |
585 | /*****************************************************************************/ |
417 | |
586 | |
|
|
587 | /* set in reify when reification needed */ |
|
|
588 | #define EV_ANFD_REIFY 1 |
|
|
589 | |
|
|
590 | /* file descriptor info structure */ |
418 | typedef struct |
591 | typedef struct |
419 | { |
592 | { |
420 | WL head; |
593 | WL head; |
421 | unsigned char events; |
594 | unsigned char events; /* the events watched for */ |
|
|
595 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
596 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
422 | unsigned char reify; |
597 | unsigned char unused; |
|
|
598 | #if EV_USE_EPOLL |
|
|
599 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
600 | #endif |
423 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
424 | SOCKET handle; |
602 | SOCKET handle; |
425 | #endif |
603 | #endif |
426 | } ANFD; |
604 | } ANFD; |
427 | |
605 | |
|
|
606 | /* stores the pending event set for a given watcher */ |
428 | typedef struct |
607 | typedef struct |
429 | { |
608 | { |
430 | W w; |
609 | W w; |
431 | int events; |
610 | int events; /* the pending event set for the given watcher */ |
432 | } ANPENDING; |
611 | } ANPENDING; |
433 | |
612 | |
434 | #if EV_USE_INOTIFY |
613 | #if EV_USE_INOTIFY |
435 | /* hash table entry per inotify-id */ |
614 | /* hash table entry per inotify-id */ |
436 | typedef struct |
615 | typedef struct |
… | |
… | |
439 | } ANFS; |
618 | } ANFS; |
440 | #endif |
619 | #endif |
441 | |
620 | |
442 | /* Heap Entry */ |
621 | /* Heap Entry */ |
443 | #if EV_HEAP_CACHE_AT |
622 | #if EV_HEAP_CACHE_AT |
|
|
623 | /* a heap element */ |
444 | typedef struct { |
624 | typedef struct { |
445 | ev_tstamp at; |
625 | ev_tstamp at; |
446 | WT w; |
626 | WT w; |
447 | } ANHE; |
627 | } ANHE; |
448 | |
628 | |
449 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
629 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
450 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
630 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
451 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
631 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
452 | #else |
632 | #else |
|
|
633 | /* a heap element */ |
453 | typedef WT ANHE; |
634 | typedef WT ANHE; |
454 | |
635 | |
455 | #define ANHE_w(he) (he) |
636 | #define ANHE_w(he) (he) |
456 | #define ANHE_at(he) (he)->at |
637 | #define ANHE_at(he) (he)->at |
457 | #define ANHE_at_set(he) |
638 | #define ANHE_at_cache(he) |
458 | #endif |
639 | #endif |
459 | |
640 | |
460 | #if EV_MULTIPLICITY |
641 | #if EV_MULTIPLICITY |
461 | |
642 | |
462 | struct ev_loop |
643 | struct ev_loop |
… | |
… | |
481 | |
662 | |
482 | static int ev_default_loop_ptr; |
663 | static int ev_default_loop_ptr; |
483 | |
664 | |
484 | #endif |
665 | #endif |
485 | |
666 | |
|
|
667 | #if EV_MINIMAL < 2 |
|
|
668 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
669 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
670 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
671 | #else |
|
|
672 | # define EV_RELEASE_CB (void)0 |
|
|
673 | # define EV_ACQUIRE_CB (void)0 |
|
|
674 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
675 | #endif |
|
|
676 | |
|
|
677 | #define EVUNLOOP_RECURSE 0x80 |
|
|
678 | |
486 | /*****************************************************************************/ |
679 | /*****************************************************************************/ |
487 | |
680 | |
|
|
681 | #ifndef EV_HAVE_EV_TIME |
488 | ev_tstamp |
682 | ev_tstamp |
489 | ev_time (void) |
683 | ev_time (void) |
490 | { |
684 | { |
491 | #if EV_USE_REALTIME |
685 | #if EV_USE_REALTIME |
|
|
686 | if (expect_true (have_realtime)) |
|
|
687 | { |
492 | struct timespec ts; |
688 | struct timespec ts; |
493 | clock_gettime (CLOCK_REALTIME, &ts); |
689 | clock_gettime (CLOCK_REALTIME, &ts); |
494 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
690 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
495 | #else |
691 | } |
|
|
692 | #endif |
|
|
693 | |
496 | struct timeval tv; |
694 | struct timeval tv; |
497 | gettimeofday (&tv, 0); |
695 | gettimeofday (&tv, 0); |
498 | return tv.tv_sec + tv.tv_usec * 1e-6; |
696 | return tv.tv_sec + tv.tv_usec * 1e-6; |
499 | #endif |
|
|
500 | } |
697 | } |
|
|
698 | #endif |
501 | |
699 | |
502 | ev_tstamp inline_size |
700 | inline_size ev_tstamp |
503 | get_clock (void) |
701 | get_clock (void) |
504 | { |
702 | { |
505 | #if EV_USE_MONOTONIC |
703 | #if EV_USE_MONOTONIC |
506 | if (expect_true (have_monotonic)) |
704 | if (expect_true (have_monotonic)) |
507 | { |
705 | { |
… | |
… | |
540 | struct timeval tv; |
738 | struct timeval tv; |
541 | |
739 | |
542 | tv.tv_sec = (time_t)delay; |
740 | tv.tv_sec = (time_t)delay; |
543 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
741 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
544 | |
742 | |
|
|
743 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
744 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
745 | /* by older ones */ |
545 | select (0, 0, 0, 0, &tv); |
746 | select (0, 0, 0, 0, &tv); |
546 | #endif |
747 | #endif |
547 | } |
748 | } |
548 | } |
749 | } |
549 | |
750 | |
550 | /*****************************************************************************/ |
751 | /*****************************************************************************/ |
551 | |
752 | |
552 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
753 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
553 | |
754 | |
554 | int inline_size |
755 | /* find a suitable new size for the given array, */ |
|
|
756 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
757 | inline_size int |
555 | array_nextsize (int elem, int cur, int cnt) |
758 | array_nextsize (int elem, int cur, int cnt) |
556 | { |
759 | { |
557 | int ncur = cur + 1; |
760 | int ncur = cur + 1; |
558 | |
761 | |
559 | do |
762 | do |
… | |
… | |
576 | array_realloc (int elem, void *base, int *cur, int cnt) |
779 | array_realloc (int elem, void *base, int *cur, int cnt) |
577 | { |
780 | { |
578 | *cur = array_nextsize (elem, *cur, cnt); |
781 | *cur = array_nextsize (elem, *cur, cnt); |
579 | return ev_realloc (base, elem * *cur); |
782 | return ev_realloc (base, elem * *cur); |
580 | } |
783 | } |
|
|
784 | |
|
|
785 | #define array_init_zero(base,count) \ |
|
|
786 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
581 | |
787 | |
582 | #define array_needsize(type,base,cur,cnt,init) \ |
788 | #define array_needsize(type,base,cur,cnt,init) \ |
583 | if (expect_false ((cnt) > (cur))) \ |
789 | if (expect_false ((cnt) > (cur))) \ |
584 | { \ |
790 | { \ |
585 | int ocur_ = (cur); \ |
791 | int ocur_ = (cur); \ |
… | |
… | |
597 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
803 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
598 | } |
804 | } |
599 | #endif |
805 | #endif |
600 | |
806 | |
601 | #define array_free(stem, idx) \ |
807 | #define array_free(stem, idx) \ |
602 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
808 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
603 | |
809 | |
604 | /*****************************************************************************/ |
810 | /*****************************************************************************/ |
|
|
811 | |
|
|
812 | /* dummy callback for pending events */ |
|
|
813 | static void noinline |
|
|
814 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
815 | { |
|
|
816 | } |
605 | |
817 | |
606 | void noinline |
818 | void noinline |
607 | ev_feed_event (EV_P_ void *w, int revents) |
819 | ev_feed_event (EV_P_ void *w, int revents) |
608 | { |
820 | { |
609 | W w_ = (W)w; |
821 | W w_ = (W)w; |
… | |
… | |
618 | pendings [pri][w_->pending - 1].w = w_; |
830 | pendings [pri][w_->pending - 1].w = w_; |
619 | pendings [pri][w_->pending - 1].events = revents; |
831 | pendings [pri][w_->pending - 1].events = revents; |
620 | } |
832 | } |
621 | } |
833 | } |
622 | |
834 | |
623 | void inline_speed |
835 | inline_speed void |
|
|
836 | feed_reverse (EV_P_ W w) |
|
|
837 | { |
|
|
838 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
839 | rfeeds [rfeedcnt++] = w; |
|
|
840 | } |
|
|
841 | |
|
|
842 | inline_size void |
|
|
843 | feed_reverse_done (EV_P_ int revents) |
|
|
844 | { |
|
|
845 | do |
|
|
846 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
847 | while (rfeedcnt); |
|
|
848 | } |
|
|
849 | |
|
|
850 | inline_speed void |
624 | queue_events (EV_P_ W *events, int eventcnt, int type) |
851 | queue_events (EV_P_ W *events, int eventcnt, int type) |
625 | { |
852 | { |
626 | int i; |
853 | int i; |
627 | |
854 | |
628 | for (i = 0; i < eventcnt; ++i) |
855 | for (i = 0; i < eventcnt; ++i) |
629 | ev_feed_event (EV_A_ events [i], type); |
856 | ev_feed_event (EV_A_ events [i], type); |
630 | } |
857 | } |
631 | |
858 | |
632 | /*****************************************************************************/ |
859 | /*****************************************************************************/ |
633 | |
860 | |
634 | void inline_size |
861 | inline_speed void |
635 | anfds_init (ANFD *base, int count) |
|
|
636 | { |
|
|
637 | while (count--) |
|
|
638 | { |
|
|
639 | base->head = 0; |
|
|
640 | base->events = EV_NONE; |
|
|
641 | base->reify = 0; |
|
|
642 | |
|
|
643 | ++base; |
|
|
644 | } |
|
|
645 | } |
|
|
646 | |
|
|
647 | void inline_speed |
|
|
648 | fd_event (EV_P_ int fd, int revents) |
862 | fd_event_nc (EV_P_ int fd, int revents) |
649 | { |
863 | { |
650 | ANFD *anfd = anfds + fd; |
864 | ANFD *anfd = anfds + fd; |
651 | ev_io *w; |
865 | ev_io *w; |
652 | |
866 | |
653 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
867 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
657 | if (ev) |
871 | if (ev) |
658 | ev_feed_event (EV_A_ (W)w, ev); |
872 | ev_feed_event (EV_A_ (W)w, ev); |
659 | } |
873 | } |
660 | } |
874 | } |
661 | |
875 | |
|
|
876 | /* do not submit kernel events for fds that have reify set */ |
|
|
877 | /* because that means they changed while we were polling for new events */ |
|
|
878 | inline_speed void |
|
|
879 | fd_event (EV_P_ int fd, int revents) |
|
|
880 | { |
|
|
881 | ANFD *anfd = anfds + fd; |
|
|
882 | |
|
|
883 | if (expect_true (!anfd->reify)) |
|
|
884 | fd_event_nc (EV_A_ fd, revents); |
|
|
885 | } |
|
|
886 | |
662 | void |
887 | void |
663 | ev_feed_fd_event (EV_P_ int fd, int revents) |
888 | ev_feed_fd_event (EV_P_ int fd, int revents) |
664 | { |
889 | { |
665 | if (fd >= 0 && fd < anfdmax) |
890 | if (fd >= 0 && fd < anfdmax) |
666 | fd_event (EV_A_ fd, revents); |
891 | fd_event_nc (EV_A_ fd, revents); |
667 | } |
892 | } |
668 | |
893 | |
669 | void inline_size |
894 | /* make sure the external fd watch events are in-sync */ |
|
|
895 | /* with the kernel/libev internal state */ |
|
|
896 | inline_size void |
670 | fd_reify (EV_P) |
897 | fd_reify (EV_P) |
671 | { |
898 | { |
672 | int i; |
899 | int i; |
673 | |
900 | |
674 | for (i = 0; i < fdchangecnt; ++i) |
901 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
683 | events |= (unsigned char)w->events; |
910 | events |= (unsigned char)w->events; |
684 | |
911 | |
685 | #if EV_SELECT_IS_WINSOCKET |
912 | #if EV_SELECT_IS_WINSOCKET |
686 | if (events) |
913 | if (events) |
687 | { |
914 | { |
688 | unsigned long argp; |
915 | unsigned long arg; |
689 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
690 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
916 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
691 | #else |
|
|
692 | anfd->handle = _get_osfhandle (fd); |
|
|
693 | #endif |
|
|
694 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
917 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
695 | } |
918 | } |
696 | #endif |
919 | #endif |
697 | |
920 | |
698 | { |
921 | { |
699 | unsigned char o_events = anfd->events; |
922 | unsigned char o_events = anfd->events; |
700 | unsigned char o_reify = anfd->reify; |
923 | unsigned char o_reify = anfd->reify; |
701 | |
924 | |
702 | anfd->reify = 0; |
925 | anfd->reify = 0; |
703 | anfd->events = events; |
926 | anfd->events = events; |
704 | |
927 | |
705 | if (o_events != events || o_reify & EV_IOFDSET) |
928 | if (o_events != events || o_reify & EV__IOFDSET) |
706 | backend_modify (EV_A_ fd, o_events, events); |
929 | backend_modify (EV_A_ fd, o_events, events); |
707 | } |
930 | } |
708 | } |
931 | } |
709 | |
932 | |
710 | fdchangecnt = 0; |
933 | fdchangecnt = 0; |
711 | } |
934 | } |
712 | |
935 | |
713 | void inline_size |
936 | /* something about the given fd changed */ |
|
|
937 | inline_size void |
714 | fd_change (EV_P_ int fd, int flags) |
938 | fd_change (EV_P_ int fd, int flags) |
715 | { |
939 | { |
716 | unsigned char reify = anfds [fd].reify; |
940 | unsigned char reify = anfds [fd].reify; |
717 | anfds [fd].reify |= flags; |
941 | anfds [fd].reify |= flags; |
718 | |
942 | |
… | |
… | |
722 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
946 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
723 | fdchanges [fdchangecnt - 1] = fd; |
947 | fdchanges [fdchangecnt - 1] = fd; |
724 | } |
948 | } |
725 | } |
949 | } |
726 | |
950 | |
727 | void inline_speed |
951 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
952 | inline_speed void |
728 | fd_kill (EV_P_ int fd) |
953 | fd_kill (EV_P_ int fd) |
729 | { |
954 | { |
730 | ev_io *w; |
955 | ev_io *w; |
731 | |
956 | |
732 | while ((w = (ev_io *)anfds [fd].head)) |
957 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
734 | ev_io_stop (EV_A_ w); |
959 | ev_io_stop (EV_A_ w); |
735 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
960 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
736 | } |
961 | } |
737 | } |
962 | } |
738 | |
963 | |
739 | int inline_size |
964 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
965 | inline_size int |
740 | fd_valid (int fd) |
966 | fd_valid (int fd) |
741 | { |
967 | { |
742 | #ifdef _WIN32 |
968 | #ifdef _WIN32 |
743 | return _get_osfhandle (fd) != -1; |
969 | return _get_osfhandle (fd) != -1; |
744 | #else |
970 | #else |
… | |
… | |
752 | { |
978 | { |
753 | int fd; |
979 | int fd; |
754 | |
980 | |
755 | for (fd = 0; fd < anfdmax; ++fd) |
981 | for (fd = 0; fd < anfdmax; ++fd) |
756 | if (anfds [fd].events) |
982 | if (anfds [fd].events) |
757 | if (!fd_valid (fd) == -1 && errno == EBADF) |
983 | if (!fd_valid (fd) && errno == EBADF) |
758 | fd_kill (EV_A_ fd); |
984 | fd_kill (EV_A_ fd); |
759 | } |
985 | } |
760 | |
986 | |
761 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
987 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
762 | static void noinline |
988 | static void noinline |
… | |
… | |
766 | |
992 | |
767 | for (fd = anfdmax; fd--; ) |
993 | for (fd = anfdmax; fd--; ) |
768 | if (anfds [fd].events) |
994 | if (anfds [fd].events) |
769 | { |
995 | { |
770 | fd_kill (EV_A_ fd); |
996 | fd_kill (EV_A_ fd); |
771 | return; |
997 | break; |
772 | } |
998 | } |
773 | } |
999 | } |
774 | |
1000 | |
775 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1001 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
776 | static void noinline |
1002 | static void noinline |
… | |
… | |
780 | |
1006 | |
781 | for (fd = 0; fd < anfdmax; ++fd) |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
782 | if (anfds [fd].events) |
1008 | if (anfds [fd].events) |
783 | { |
1009 | { |
784 | anfds [fd].events = 0; |
1010 | anfds [fd].events = 0; |
|
|
1011 | anfds [fd].emask = 0; |
785 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1012 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
786 | } |
1013 | } |
787 | } |
1014 | } |
788 | |
1015 | |
789 | /*****************************************************************************/ |
1016 | /*****************************************************************************/ |
790 | |
1017 | |
… | |
… | |
802 | */ |
1029 | */ |
803 | #if EV_USE_4HEAP |
1030 | #if EV_USE_4HEAP |
804 | |
1031 | |
805 | #define DHEAP 4 |
1032 | #define DHEAP 4 |
806 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1033 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
807 | |
1034 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
808 | /* towards the root */ |
1035 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
809 | void inline_speed |
|
|
810 | upheap (ANHE *heap, int k) |
|
|
811 | { |
|
|
812 | ANHE he = heap [k]; |
|
|
813 | |
|
|
814 | for (;;) |
|
|
815 | { |
|
|
816 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
817 | |
|
|
818 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
819 | break; |
|
|
820 | |
|
|
821 | heap [k] = heap [p]; |
|
|
822 | ev_active (ANHE_w (heap [k])) = k; |
|
|
823 | k = p; |
|
|
824 | } |
|
|
825 | |
|
|
826 | ev_active (ANHE_w (he)) = k; |
|
|
827 | heap [k] = he; |
|
|
828 | } |
|
|
829 | |
1036 | |
830 | /* away from the root */ |
1037 | /* away from the root */ |
831 | void inline_speed |
1038 | inline_speed void |
832 | downheap (ANHE *heap, int N, int k) |
1039 | downheap (ANHE *heap, int N, int k) |
833 | { |
1040 | { |
834 | ANHE he = heap [k]; |
1041 | ANHE he = heap [k]; |
835 | ANHE *E = heap + N + HEAP0; |
1042 | ANHE *E = heap + N + HEAP0; |
836 | |
1043 | |
837 | for (;;) |
1044 | for (;;) |
838 | { |
1045 | { |
839 | ev_tstamp minat; |
1046 | ev_tstamp minat; |
840 | ANHE *minpos; |
1047 | ANHE *minpos; |
841 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
1048 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
842 | |
1049 | |
843 | // find minimum child |
1050 | /* find minimum child */ |
844 | if (expect_true (pos + DHEAP - 1 < E)) |
1051 | if (expect_true (pos + DHEAP - 1 < E)) |
845 | { |
1052 | { |
846 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1053 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
847 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1054 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
848 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1055 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
… | |
… | |
859 | break; |
1066 | break; |
860 | |
1067 | |
861 | if (ANHE_at (he) <= minat) |
1068 | if (ANHE_at (he) <= minat) |
862 | break; |
1069 | break; |
863 | |
1070 | |
|
|
1071 | heap [k] = *minpos; |
864 | ev_active (ANHE_w (*minpos)) = k; |
1072 | ev_active (ANHE_w (*minpos)) = k; |
865 | heap [k] = *minpos; |
|
|
866 | |
1073 | |
867 | k = minpos - heap; |
1074 | k = minpos - heap; |
868 | } |
1075 | } |
869 | |
1076 | |
|
|
1077 | heap [k] = he; |
870 | ev_active (ANHE_w (he)) = k; |
1078 | ev_active (ANHE_w (he)) = k; |
871 | heap [k] = he; |
|
|
872 | } |
1079 | } |
873 | |
1080 | |
874 | #else // 4HEAP |
1081 | #else /* 4HEAP */ |
875 | |
1082 | |
876 | #define HEAP0 1 |
1083 | #define HEAP0 1 |
|
|
1084 | #define HPARENT(k) ((k) >> 1) |
|
|
1085 | #define UPHEAP_DONE(p,k) (!(p)) |
877 | |
1086 | |
878 | /* towards the root */ |
1087 | /* away from the root */ |
879 | void inline_speed |
1088 | inline_speed void |
880 | upheap (ANHE *heap, int k) |
1089 | downheap (ANHE *heap, int N, int k) |
881 | { |
1090 | { |
882 | ANHE he = heap [k]; |
1091 | ANHE he = heap [k]; |
883 | |
1092 | |
884 | for (;;) |
1093 | for (;;) |
885 | { |
1094 | { |
886 | int p = k >> 1; |
1095 | int c = k << 1; |
887 | |
1096 | |
888 | /* maybe we could use a dummy element at heap [0]? */ |
1097 | if (c >= N + HEAP0) |
889 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
890 | break; |
1098 | break; |
891 | |
1099 | |
892 | heap [k] = heap [p]; |
|
|
893 | ev_active (ANHE_w (heap [k])) = k; |
|
|
894 | k = p; |
|
|
895 | } |
|
|
896 | |
|
|
897 | heap [k] = he; |
|
|
898 | ev_active (ANHE_w (heap [k])) = k; |
|
|
899 | } |
|
|
900 | |
|
|
901 | /* away from the root */ |
|
|
902 | void inline_speed |
|
|
903 | downheap (ANHE *heap, int N, int k) |
|
|
904 | { |
|
|
905 | ANHE he = heap [k]; |
|
|
906 | |
|
|
907 | for (;;) |
|
|
908 | { |
|
|
909 | int c = k << 1; |
|
|
910 | |
|
|
911 | if (c > N) |
|
|
912 | break; |
|
|
913 | |
|
|
914 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1100 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
915 | ? 1 : 0; |
1101 | ? 1 : 0; |
916 | |
1102 | |
917 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
1103 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
918 | break; |
1104 | break; |
919 | |
1105 | |
… | |
… | |
926 | heap [k] = he; |
1112 | heap [k] = he; |
927 | ev_active (ANHE_w (he)) = k; |
1113 | ev_active (ANHE_w (he)) = k; |
928 | } |
1114 | } |
929 | #endif |
1115 | #endif |
930 | |
1116 | |
931 | void inline_size |
1117 | /* towards the root */ |
|
|
1118 | inline_speed void |
|
|
1119 | upheap (ANHE *heap, int k) |
|
|
1120 | { |
|
|
1121 | ANHE he = heap [k]; |
|
|
1122 | |
|
|
1123 | for (;;) |
|
|
1124 | { |
|
|
1125 | int p = HPARENT (k); |
|
|
1126 | |
|
|
1127 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1128 | break; |
|
|
1129 | |
|
|
1130 | heap [k] = heap [p]; |
|
|
1131 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1132 | k = p; |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | heap [k] = he; |
|
|
1136 | ev_active (ANHE_w (he)) = k; |
|
|
1137 | } |
|
|
1138 | |
|
|
1139 | /* move an element suitably so it is in a correct place */ |
|
|
1140 | inline_size void |
932 | adjustheap (ANHE *heap, int N, int k) |
1141 | adjustheap (ANHE *heap, int N, int k) |
933 | { |
1142 | { |
|
|
1143 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
934 | upheap (heap, k); |
1144 | upheap (heap, k); |
|
|
1145 | else |
935 | downheap (heap, N, k); |
1146 | downheap (heap, N, k); |
|
|
1147 | } |
|
|
1148 | |
|
|
1149 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1150 | inline_size void |
|
|
1151 | reheap (ANHE *heap, int N) |
|
|
1152 | { |
|
|
1153 | int i; |
|
|
1154 | |
|
|
1155 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1156 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1157 | for (i = 0; i < N; ++i) |
|
|
1158 | upheap (heap, i + HEAP0); |
936 | } |
1159 | } |
937 | |
1160 | |
938 | /*****************************************************************************/ |
1161 | /*****************************************************************************/ |
939 | |
1162 | |
|
|
1163 | /* associate signal watchers to a signal signal */ |
940 | typedef struct |
1164 | typedef struct |
941 | { |
1165 | { |
|
|
1166 | EV_ATOMIC_T pending; |
|
|
1167 | #if EV_MULTIPLICITY |
|
|
1168 | EV_P; |
|
|
1169 | #endif |
942 | WL head; |
1170 | WL head; |
943 | EV_ATOMIC_T gotsig; |
|
|
944 | } ANSIG; |
1171 | } ANSIG; |
945 | |
1172 | |
946 | static ANSIG *signals; |
1173 | static ANSIG signals [EV_NSIG - 1]; |
947 | static int signalmax; |
|
|
948 | |
|
|
949 | static EV_ATOMIC_T gotsig; |
|
|
950 | |
|
|
951 | void inline_size |
|
|
952 | signals_init (ANSIG *base, int count) |
|
|
953 | { |
|
|
954 | while (count--) |
|
|
955 | { |
|
|
956 | base->head = 0; |
|
|
957 | base->gotsig = 0; |
|
|
958 | |
|
|
959 | ++base; |
|
|
960 | } |
|
|
961 | } |
|
|
962 | |
1174 | |
963 | /*****************************************************************************/ |
1175 | /*****************************************************************************/ |
964 | |
1176 | |
965 | void inline_speed |
1177 | /* used to prepare libev internal fd's */ |
|
|
1178 | /* this is not fork-safe */ |
|
|
1179 | inline_speed void |
966 | fd_intern (int fd) |
1180 | fd_intern (int fd) |
967 | { |
1181 | { |
968 | #ifdef _WIN32 |
1182 | #ifdef _WIN32 |
969 | int arg = 1; |
1183 | unsigned long arg = 1; |
970 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1184 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
971 | #else |
1185 | #else |
972 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1186 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
973 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1187 | fcntl (fd, F_SETFL, O_NONBLOCK); |
974 | #endif |
1188 | #endif |
975 | } |
1189 | } |
976 | |
1190 | |
977 | static void noinline |
1191 | static void noinline |
978 | evpipe_init (EV_P) |
1192 | evpipe_init (EV_P) |
979 | { |
1193 | { |
980 | if (!ev_is_active (&pipeev)) |
1194 | if (!ev_is_active (&pipe_w)) |
981 | { |
1195 | { |
982 | #if EV_USE_EVENTFD |
1196 | #if EV_USE_EVENTFD |
|
|
1197 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1198 | if (evfd < 0 && errno == EINVAL) |
983 | if ((evfd = eventfd (0, 0)) >= 0) |
1199 | evfd = eventfd (0, 0); |
|
|
1200 | |
|
|
1201 | if (evfd >= 0) |
984 | { |
1202 | { |
985 | evpipe [0] = -1; |
1203 | evpipe [0] = -1; |
986 | fd_intern (evfd); |
1204 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
987 | ev_io_set (&pipeev, evfd, EV_READ); |
1205 | ev_io_set (&pipe_w, evfd, EV_READ); |
988 | } |
1206 | } |
989 | else |
1207 | else |
990 | #endif |
1208 | #endif |
991 | { |
1209 | { |
992 | while (pipe (evpipe)) |
1210 | while (pipe (evpipe)) |
993 | syserr ("(libev) error creating signal/async pipe"); |
1211 | ev_syserr ("(libev) error creating signal/async pipe"); |
994 | |
1212 | |
995 | fd_intern (evpipe [0]); |
1213 | fd_intern (evpipe [0]); |
996 | fd_intern (evpipe [1]); |
1214 | fd_intern (evpipe [1]); |
997 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1215 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
998 | } |
1216 | } |
999 | |
1217 | |
1000 | ev_io_start (EV_A_ &pipeev); |
1218 | ev_io_start (EV_A_ &pipe_w); |
1001 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1219 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1002 | } |
1220 | } |
1003 | } |
1221 | } |
1004 | |
1222 | |
1005 | void inline_size |
1223 | inline_size void |
1006 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1224 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1007 | { |
1225 | { |
1008 | if (!*flag) |
1226 | if (!*flag) |
1009 | { |
1227 | { |
1010 | int old_errno = errno; /* save errno because write might clobber it */ |
1228 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1023 | |
1241 | |
1024 | errno = old_errno; |
1242 | errno = old_errno; |
1025 | } |
1243 | } |
1026 | } |
1244 | } |
1027 | |
1245 | |
|
|
1246 | /* called whenever the libev signal pipe */ |
|
|
1247 | /* got some events (signal, async) */ |
1028 | static void |
1248 | static void |
1029 | pipecb (EV_P_ ev_io *iow, int revents) |
1249 | pipecb (EV_P_ ev_io *iow, int revents) |
1030 | { |
1250 | { |
|
|
1251 | int i; |
|
|
1252 | |
1031 | #if EV_USE_EVENTFD |
1253 | #if EV_USE_EVENTFD |
1032 | if (evfd >= 0) |
1254 | if (evfd >= 0) |
1033 | { |
1255 | { |
1034 | uint64_t counter; |
1256 | uint64_t counter; |
1035 | read (evfd, &counter, sizeof (uint64_t)); |
1257 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1039 | { |
1261 | { |
1040 | char dummy; |
1262 | char dummy; |
1041 | read (evpipe [0], &dummy, 1); |
1263 | read (evpipe [0], &dummy, 1); |
1042 | } |
1264 | } |
1043 | |
1265 | |
1044 | if (gotsig && ev_is_default_loop (EV_A)) |
1266 | if (sig_pending) |
1045 | { |
1267 | { |
1046 | int signum; |
1268 | sig_pending = 0; |
1047 | gotsig = 0; |
|
|
1048 | |
1269 | |
1049 | for (signum = signalmax; signum--; ) |
1270 | for (i = EV_NSIG - 1; i--; ) |
1050 | if (signals [signum].gotsig) |
1271 | if (expect_false (signals [i].pending)) |
1051 | ev_feed_signal_event (EV_A_ signum + 1); |
1272 | ev_feed_signal_event (EV_A_ i + 1); |
1052 | } |
1273 | } |
1053 | |
1274 | |
1054 | #if EV_ASYNC_ENABLE |
1275 | #if EV_ASYNC_ENABLE |
1055 | if (gotasync) |
1276 | if (async_pending) |
1056 | { |
1277 | { |
1057 | int i; |
1278 | async_pending = 0; |
1058 | gotasync = 0; |
|
|
1059 | |
1279 | |
1060 | for (i = asynccnt; i--; ) |
1280 | for (i = asynccnt; i--; ) |
1061 | if (asyncs [i]->sent) |
1281 | if (asyncs [i]->sent) |
1062 | { |
1282 | { |
1063 | asyncs [i]->sent = 0; |
1283 | asyncs [i]->sent = 0; |
… | |
… | |
1071 | |
1291 | |
1072 | static void |
1292 | static void |
1073 | ev_sighandler (int signum) |
1293 | ev_sighandler (int signum) |
1074 | { |
1294 | { |
1075 | #if EV_MULTIPLICITY |
1295 | #if EV_MULTIPLICITY |
1076 | struct ev_loop *loop = &default_loop_struct; |
1296 | EV_P = signals [signum - 1].loop; |
1077 | #endif |
1297 | #endif |
1078 | |
1298 | |
1079 | #if _WIN32 |
1299 | #if _WIN32 |
1080 | signal (signum, ev_sighandler); |
1300 | signal (signum, ev_sighandler); |
1081 | #endif |
1301 | #endif |
1082 | |
1302 | |
1083 | signals [signum - 1].gotsig = 1; |
1303 | signals [signum - 1].pending = 1; |
1084 | evpipe_write (EV_A_ &gotsig); |
1304 | evpipe_write (EV_A_ &sig_pending); |
1085 | } |
1305 | } |
1086 | |
1306 | |
1087 | void noinline |
1307 | void noinline |
1088 | ev_feed_signal_event (EV_P_ int signum) |
1308 | ev_feed_signal_event (EV_P_ int signum) |
1089 | { |
1309 | { |
1090 | WL w; |
1310 | WL w; |
1091 | |
1311 | |
|
|
1312 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1313 | return; |
|
|
1314 | |
|
|
1315 | --signum; |
|
|
1316 | |
1092 | #if EV_MULTIPLICITY |
1317 | #if EV_MULTIPLICITY |
1093 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1318 | /* it is permissible to try to feed a signal to the wrong loop */ |
1094 | #endif |
1319 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1095 | |
1320 | |
1096 | --signum; |
1321 | if (expect_false (signals [signum].loop != EV_A)) |
1097 | |
|
|
1098 | if (signum < 0 || signum >= signalmax) |
|
|
1099 | return; |
1322 | return; |
|
|
1323 | #endif |
1100 | |
1324 | |
1101 | signals [signum].gotsig = 0; |
1325 | signals [signum].pending = 0; |
1102 | |
1326 | |
1103 | for (w = signals [signum].head; w; w = w->next) |
1327 | for (w = signals [signum].head; w; w = w->next) |
1104 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1328 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1105 | } |
1329 | } |
1106 | |
1330 | |
|
|
1331 | #if EV_USE_SIGNALFD |
|
|
1332 | static void |
|
|
1333 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1334 | { |
|
|
1335 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1336 | |
|
|
1337 | for (;;) |
|
|
1338 | { |
|
|
1339 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1340 | |
|
|
1341 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1342 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1343 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1344 | |
|
|
1345 | if (res < (ssize_t)sizeof (si)) |
|
|
1346 | break; |
|
|
1347 | } |
|
|
1348 | } |
|
|
1349 | #endif |
|
|
1350 | |
1107 | /*****************************************************************************/ |
1351 | /*****************************************************************************/ |
1108 | |
1352 | |
1109 | static WL childs [EV_PID_HASHSIZE]; |
1353 | static WL childs [EV_PID_HASHSIZE]; |
1110 | |
1354 | |
1111 | #ifndef _WIN32 |
1355 | #ifndef _WIN32 |
… | |
… | |
1114 | |
1358 | |
1115 | #ifndef WIFCONTINUED |
1359 | #ifndef WIFCONTINUED |
1116 | # define WIFCONTINUED(status) 0 |
1360 | # define WIFCONTINUED(status) 0 |
1117 | #endif |
1361 | #endif |
1118 | |
1362 | |
1119 | void inline_speed |
1363 | /* handle a single child status event */ |
|
|
1364 | inline_speed void |
1120 | child_reap (EV_P_ int chain, int pid, int status) |
1365 | child_reap (EV_P_ int chain, int pid, int status) |
1121 | { |
1366 | { |
1122 | ev_child *w; |
1367 | ev_child *w; |
1123 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1368 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1124 | |
1369 | |
… | |
… | |
1137 | |
1382 | |
1138 | #ifndef WCONTINUED |
1383 | #ifndef WCONTINUED |
1139 | # define WCONTINUED 0 |
1384 | # define WCONTINUED 0 |
1140 | #endif |
1385 | #endif |
1141 | |
1386 | |
|
|
1387 | /* called on sigchld etc., calls waitpid */ |
1142 | static void |
1388 | static void |
1143 | childcb (EV_P_ ev_signal *sw, int revents) |
1389 | childcb (EV_P_ ev_signal *sw, int revents) |
1144 | { |
1390 | { |
1145 | int pid, status; |
1391 | int pid, status; |
1146 | |
1392 | |
… | |
… | |
1227 | /* kqueue is borked on everything but netbsd apparently */ |
1473 | /* kqueue is borked on everything but netbsd apparently */ |
1228 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1474 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1229 | flags &= ~EVBACKEND_KQUEUE; |
1475 | flags &= ~EVBACKEND_KQUEUE; |
1230 | #endif |
1476 | #endif |
1231 | #ifdef __APPLE__ |
1477 | #ifdef __APPLE__ |
1232 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1478 | /* only select works correctly on that "unix-certified" platform */ |
1233 | flags &= ~EVBACKEND_POLL; |
1479 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1480 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1234 | #endif |
1481 | #endif |
1235 | |
1482 | |
1236 | return flags; |
1483 | return flags; |
1237 | } |
1484 | } |
1238 | |
1485 | |
… | |
… | |
1252 | ev_backend (EV_P) |
1499 | ev_backend (EV_P) |
1253 | { |
1500 | { |
1254 | return backend; |
1501 | return backend; |
1255 | } |
1502 | } |
1256 | |
1503 | |
|
|
1504 | #if EV_MINIMAL < 2 |
1257 | unsigned int |
1505 | unsigned int |
1258 | ev_loop_count (EV_P) |
1506 | ev_loop_count (EV_P) |
1259 | { |
1507 | { |
1260 | return loop_count; |
1508 | return loop_count; |
1261 | } |
1509 | } |
1262 | |
1510 | |
|
|
1511 | unsigned int |
|
|
1512 | ev_loop_depth (EV_P) |
|
|
1513 | { |
|
|
1514 | return loop_depth; |
|
|
1515 | } |
|
|
1516 | |
1263 | void |
1517 | void |
1264 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1518 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1265 | { |
1519 | { |
1266 | io_blocktime = interval; |
1520 | io_blocktime = interval; |
1267 | } |
1521 | } |
… | |
… | |
1270 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1524 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1271 | { |
1525 | { |
1272 | timeout_blocktime = interval; |
1526 | timeout_blocktime = interval; |
1273 | } |
1527 | } |
1274 | |
1528 | |
|
|
1529 | void |
|
|
1530 | ev_set_userdata (EV_P_ void *data) |
|
|
1531 | { |
|
|
1532 | userdata = data; |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | void * |
|
|
1536 | ev_userdata (EV_P) |
|
|
1537 | { |
|
|
1538 | return userdata; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1542 | { |
|
|
1543 | invoke_cb = invoke_pending_cb; |
|
|
1544 | } |
|
|
1545 | |
|
|
1546 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1547 | { |
|
|
1548 | release_cb = release; |
|
|
1549 | acquire_cb = acquire; |
|
|
1550 | } |
|
|
1551 | #endif |
|
|
1552 | |
|
|
1553 | /* initialise a loop structure, must be zero-initialised */ |
1275 | static void noinline |
1554 | static void noinline |
1276 | loop_init (EV_P_ unsigned int flags) |
1555 | loop_init (EV_P_ unsigned int flags) |
1277 | { |
1556 | { |
1278 | if (!backend) |
1557 | if (!backend) |
1279 | { |
1558 | { |
|
|
1559 | #if EV_USE_REALTIME |
|
|
1560 | if (!have_realtime) |
|
|
1561 | { |
|
|
1562 | struct timespec ts; |
|
|
1563 | |
|
|
1564 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1565 | have_realtime = 1; |
|
|
1566 | } |
|
|
1567 | #endif |
|
|
1568 | |
1280 | #if EV_USE_MONOTONIC |
1569 | #if EV_USE_MONOTONIC |
|
|
1570 | if (!have_monotonic) |
1281 | { |
1571 | { |
1282 | struct timespec ts; |
1572 | struct timespec ts; |
|
|
1573 | |
1283 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1574 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1284 | have_monotonic = 1; |
1575 | have_monotonic = 1; |
1285 | } |
1576 | } |
1286 | #endif |
1577 | #endif |
|
|
1578 | |
|
|
1579 | /* pid check not overridable via env */ |
|
|
1580 | #ifndef _WIN32 |
|
|
1581 | if (flags & EVFLAG_FORKCHECK) |
|
|
1582 | curpid = getpid (); |
|
|
1583 | #endif |
|
|
1584 | |
|
|
1585 | if (!(flags & EVFLAG_NOENV) |
|
|
1586 | && !enable_secure () |
|
|
1587 | && getenv ("LIBEV_FLAGS")) |
|
|
1588 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1287 | |
1589 | |
1288 | ev_rt_now = ev_time (); |
1590 | ev_rt_now = ev_time (); |
1289 | mn_now = get_clock (); |
1591 | mn_now = get_clock (); |
1290 | now_floor = mn_now; |
1592 | now_floor = mn_now; |
1291 | rtmn_diff = ev_rt_now - mn_now; |
1593 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1594 | #if EV_MINIMAL < 2 |
|
|
1595 | invoke_cb = ev_invoke_pending; |
|
|
1596 | #endif |
1292 | |
1597 | |
1293 | io_blocktime = 0.; |
1598 | io_blocktime = 0.; |
1294 | timeout_blocktime = 0.; |
1599 | timeout_blocktime = 0.; |
1295 | backend = 0; |
1600 | backend = 0; |
1296 | backend_fd = -1; |
1601 | backend_fd = -1; |
1297 | gotasync = 0; |
1602 | sig_pending = 0; |
|
|
1603 | #if EV_ASYNC_ENABLE |
|
|
1604 | async_pending = 0; |
|
|
1605 | #endif |
1298 | #if EV_USE_INOTIFY |
1606 | #if EV_USE_INOTIFY |
1299 | fs_fd = -2; |
1607 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1300 | #endif |
1608 | #endif |
1301 | |
1609 | #if EV_USE_SIGNALFD |
1302 | /* pid check not overridable via env */ |
1610 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1303 | #ifndef _WIN32 |
|
|
1304 | if (flags & EVFLAG_FORKCHECK) |
|
|
1305 | curpid = getpid (); |
|
|
1306 | #endif |
1611 | #endif |
1307 | |
|
|
1308 | if (!(flags & EVFLAG_NOENV) |
|
|
1309 | && !enable_secure () |
|
|
1310 | && getenv ("LIBEV_FLAGS")) |
|
|
1311 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1312 | |
1612 | |
1313 | if (!(flags & 0x0000ffffU)) |
1613 | if (!(flags & 0x0000ffffU)) |
1314 | flags |= ev_recommended_backends (); |
1614 | flags |= ev_recommended_backends (); |
1315 | |
1615 | |
1316 | #if EV_USE_PORT |
1616 | #if EV_USE_PORT |
… | |
… | |
1327 | #endif |
1627 | #endif |
1328 | #if EV_USE_SELECT |
1628 | #if EV_USE_SELECT |
1329 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1629 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1330 | #endif |
1630 | #endif |
1331 | |
1631 | |
|
|
1632 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1633 | |
1332 | ev_init (&pipeev, pipecb); |
1634 | ev_init (&pipe_w, pipecb); |
1333 | ev_set_priority (&pipeev, EV_MAXPRI); |
1635 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1334 | } |
1636 | } |
1335 | } |
1637 | } |
1336 | |
1638 | |
|
|
1639 | /* free up a loop structure */ |
1337 | static void noinline |
1640 | static void noinline |
1338 | loop_destroy (EV_P) |
1641 | loop_destroy (EV_P) |
1339 | { |
1642 | { |
1340 | int i; |
1643 | int i; |
1341 | |
1644 | |
1342 | if (ev_is_active (&pipeev)) |
1645 | if (ev_is_active (&pipe_w)) |
1343 | { |
1646 | { |
1344 | ev_ref (EV_A); /* signal watcher */ |
1647 | /*ev_ref (EV_A);*/ |
1345 | ev_io_stop (EV_A_ &pipeev); |
1648 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1346 | |
1649 | |
1347 | #if EV_USE_EVENTFD |
1650 | #if EV_USE_EVENTFD |
1348 | if (evfd >= 0) |
1651 | if (evfd >= 0) |
1349 | close (evfd); |
1652 | close (evfd); |
1350 | #endif |
1653 | #endif |
1351 | |
1654 | |
1352 | if (evpipe [0] >= 0) |
1655 | if (evpipe [0] >= 0) |
1353 | { |
1656 | { |
1354 | close (evpipe [0]); |
1657 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1355 | close (evpipe [1]); |
1658 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1356 | } |
1659 | } |
1357 | } |
1660 | } |
|
|
1661 | |
|
|
1662 | #if EV_USE_SIGNALFD |
|
|
1663 | if (ev_is_active (&sigfd_w)) |
|
|
1664 | { |
|
|
1665 | /*ev_ref (EV_A);*/ |
|
|
1666 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1667 | |
|
|
1668 | close (sigfd); |
|
|
1669 | } |
|
|
1670 | #endif |
1358 | |
1671 | |
1359 | #if EV_USE_INOTIFY |
1672 | #if EV_USE_INOTIFY |
1360 | if (fs_fd >= 0) |
1673 | if (fs_fd >= 0) |
1361 | close (fs_fd); |
1674 | close (fs_fd); |
1362 | #endif |
1675 | #endif |
… | |
… | |
1386 | #if EV_IDLE_ENABLE |
1699 | #if EV_IDLE_ENABLE |
1387 | array_free (idle, [i]); |
1700 | array_free (idle, [i]); |
1388 | #endif |
1701 | #endif |
1389 | } |
1702 | } |
1390 | |
1703 | |
1391 | ev_free (anfds); anfdmax = 0; |
1704 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1392 | |
1705 | |
1393 | /* have to use the microsoft-never-gets-it-right macro */ |
1706 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1707 | array_free (rfeed, EMPTY); |
1394 | array_free (fdchange, EMPTY); |
1708 | array_free (fdchange, EMPTY); |
1395 | array_free (timer, EMPTY); |
1709 | array_free (timer, EMPTY); |
1396 | #if EV_PERIODIC_ENABLE |
1710 | #if EV_PERIODIC_ENABLE |
1397 | array_free (periodic, EMPTY); |
1711 | array_free (periodic, EMPTY); |
1398 | #endif |
1712 | #endif |
… | |
… | |
1407 | |
1721 | |
1408 | backend = 0; |
1722 | backend = 0; |
1409 | } |
1723 | } |
1410 | |
1724 | |
1411 | #if EV_USE_INOTIFY |
1725 | #if EV_USE_INOTIFY |
1412 | void inline_size infy_fork (EV_P); |
1726 | inline_size void infy_fork (EV_P); |
1413 | #endif |
1727 | #endif |
1414 | |
1728 | |
1415 | void inline_size |
1729 | inline_size void |
1416 | loop_fork (EV_P) |
1730 | loop_fork (EV_P) |
1417 | { |
1731 | { |
1418 | #if EV_USE_PORT |
1732 | #if EV_USE_PORT |
1419 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1733 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1420 | #endif |
1734 | #endif |
… | |
… | |
1426 | #endif |
1740 | #endif |
1427 | #if EV_USE_INOTIFY |
1741 | #if EV_USE_INOTIFY |
1428 | infy_fork (EV_A); |
1742 | infy_fork (EV_A); |
1429 | #endif |
1743 | #endif |
1430 | |
1744 | |
1431 | if (ev_is_active (&pipeev)) |
1745 | if (ev_is_active (&pipe_w)) |
1432 | { |
1746 | { |
1433 | /* this "locks" the handlers against writing to the pipe */ |
1747 | /* this "locks" the handlers against writing to the pipe */ |
1434 | /* while we modify the fd vars */ |
1748 | /* while we modify the fd vars */ |
1435 | gotsig = 1; |
1749 | sig_pending = 1; |
1436 | #if EV_ASYNC_ENABLE |
1750 | #if EV_ASYNC_ENABLE |
1437 | gotasync = 1; |
1751 | async_pending = 1; |
1438 | #endif |
1752 | #endif |
1439 | |
1753 | |
1440 | ev_ref (EV_A); |
1754 | ev_ref (EV_A); |
1441 | ev_io_stop (EV_A_ &pipeev); |
1755 | ev_io_stop (EV_A_ &pipe_w); |
1442 | |
1756 | |
1443 | #if EV_USE_EVENTFD |
1757 | #if EV_USE_EVENTFD |
1444 | if (evfd >= 0) |
1758 | if (evfd >= 0) |
1445 | close (evfd); |
1759 | close (evfd); |
1446 | #endif |
1760 | #endif |
1447 | |
1761 | |
1448 | if (evpipe [0] >= 0) |
1762 | if (evpipe [0] >= 0) |
1449 | { |
1763 | { |
1450 | close (evpipe [0]); |
1764 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1451 | close (evpipe [1]); |
1765 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1452 | } |
1766 | } |
1453 | |
1767 | |
1454 | evpipe_init (EV_A); |
1768 | evpipe_init (EV_A); |
1455 | /* now iterate over everything, in case we missed something */ |
1769 | /* now iterate over everything, in case we missed something */ |
1456 | pipecb (EV_A_ &pipeev, EV_READ); |
1770 | pipecb (EV_A_ &pipe_w, EV_READ); |
1457 | } |
1771 | } |
1458 | |
1772 | |
1459 | postfork = 0; |
1773 | postfork = 0; |
1460 | } |
1774 | } |
1461 | |
1775 | |
1462 | #if EV_MULTIPLICITY |
1776 | #if EV_MULTIPLICITY |
|
|
1777 | |
1463 | struct ev_loop * |
1778 | struct ev_loop * |
1464 | ev_loop_new (unsigned int flags) |
1779 | ev_loop_new (unsigned int flags) |
1465 | { |
1780 | { |
1466 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1781 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1467 | |
1782 | |
1468 | memset (loop, 0, sizeof (struct ev_loop)); |
1783 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1469 | |
|
|
1470 | loop_init (EV_A_ flags); |
1784 | loop_init (EV_A_ flags); |
1471 | |
1785 | |
1472 | if (ev_backend (EV_A)) |
1786 | if (ev_backend (EV_A)) |
1473 | return loop; |
1787 | return EV_A; |
1474 | |
1788 | |
1475 | return 0; |
1789 | return 0; |
1476 | } |
1790 | } |
1477 | |
1791 | |
1478 | void |
1792 | void |
… | |
… | |
1484 | |
1798 | |
1485 | void |
1799 | void |
1486 | ev_loop_fork (EV_P) |
1800 | ev_loop_fork (EV_P) |
1487 | { |
1801 | { |
1488 | postfork = 1; /* must be in line with ev_default_fork */ |
1802 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1803 | } |
|
|
1804 | #endif /* multiplicity */ |
|
|
1805 | |
|
|
1806 | #if EV_VERIFY |
|
|
1807 | static void noinline |
|
|
1808 | verify_watcher (EV_P_ W w) |
|
|
1809 | { |
|
|
1810 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1811 | |
|
|
1812 | if (w->pending) |
|
|
1813 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1814 | } |
|
|
1815 | |
|
|
1816 | static void noinline |
|
|
1817 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1818 | { |
|
|
1819 | int i; |
|
|
1820 | |
|
|
1821 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1822 | { |
|
|
1823 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1824 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1825 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1826 | |
|
|
1827 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1828 | } |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | static void noinline |
|
|
1832 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1833 | { |
|
|
1834 | while (cnt--) |
|
|
1835 | { |
|
|
1836 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1837 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1838 | } |
|
|
1839 | } |
|
|
1840 | #endif |
|
|
1841 | |
|
|
1842 | #if EV_MINIMAL < 2 |
|
|
1843 | void |
|
|
1844 | ev_loop_verify (EV_P) |
|
|
1845 | { |
|
|
1846 | #if EV_VERIFY |
|
|
1847 | int i; |
|
|
1848 | WL w; |
|
|
1849 | |
|
|
1850 | assert (activecnt >= -1); |
|
|
1851 | |
|
|
1852 | assert (fdchangemax >= fdchangecnt); |
|
|
1853 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1854 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1855 | |
|
|
1856 | assert (anfdmax >= 0); |
|
|
1857 | for (i = 0; i < anfdmax; ++i) |
|
|
1858 | for (w = anfds [i].head; w; w = w->next) |
|
|
1859 | { |
|
|
1860 | verify_watcher (EV_A_ (W)w); |
|
|
1861 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1862 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | assert (timermax >= timercnt); |
|
|
1866 | verify_heap (EV_A_ timers, timercnt); |
|
|
1867 | |
|
|
1868 | #if EV_PERIODIC_ENABLE |
|
|
1869 | assert (periodicmax >= periodiccnt); |
|
|
1870 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1871 | #endif |
|
|
1872 | |
|
|
1873 | for (i = NUMPRI; i--; ) |
|
|
1874 | { |
|
|
1875 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1876 | #if EV_IDLE_ENABLE |
|
|
1877 | assert (idleall >= 0); |
|
|
1878 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1879 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1880 | #endif |
|
|
1881 | } |
|
|
1882 | |
|
|
1883 | #if EV_FORK_ENABLE |
|
|
1884 | assert (forkmax >= forkcnt); |
|
|
1885 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1886 | #endif |
|
|
1887 | |
|
|
1888 | #if EV_ASYNC_ENABLE |
|
|
1889 | assert (asyncmax >= asynccnt); |
|
|
1890 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1891 | #endif |
|
|
1892 | |
|
|
1893 | assert (preparemax >= preparecnt); |
|
|
1894 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1895 | |
|
|
1896 | assert (checkmax >= checkcnt); |
|
|
1897 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1898 | |
|
|
1899 | # if 0 |
|
|
1900 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1901 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1902 | # endif |
|
|
1903 | #endif |
1489 | } |
1904 | } |
1490 | #endif |
1905 | #endif |
1491 | |
1906 | |
1492 | #if EV_MULTIPLICITY |
1907 | #if EV_MULTIPLICITY |
1493 | struct ev_loop * |
1908 | struct ev_loop * |
… | |
… | |
1498 | #endif |
1913 | #endif |
1499 | { |
1914 | { |
1500 | if (!ev_default_loop_ptr) |
1915 | if (!ev_default_loop_ptr) |
1501 | { |
1916 | { |
1502 | #if EV_MULTIPLICITY |
1917 | #if EV_MULTIPLICITY |
1503 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1918 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1504 | #else |
1919 | #else |
1505 | ev_default_loop_ptr = 1; |
1920 | ev_default_loop_ptr = 1; |
1506 | #endif |
1921 | #endif |
1507 | |
1922 | |
1508 | loop_init (EV_A_ flags); |
1923 | loop_init (EV_A_ flags); |
… | |
… | |
1525 | |
1940 | |
1526 | void |
1941 | void |
1527 | ev_default_destroy (void) |
1942 | ev_default_destroy (void) |
1528 | { |
1943 | { |
1529 | #if EV_MULTIPLICITY |
1944 | #if EV_MULTIPLICITY |
1530 | struct ev_loop *loop = ev_default_loop_ptr; |
1945 | EV_P = ev_default_loop_ptr; |
1531 | #endif |
1946 | #endif |
|
|
1947 | |
|
|
1948 | ev_default_loop_ptr = 0; |
1532 | |
1949 | |
1533 | #ifndef _WIN32 |
1950 | #ifndef _WIN32 |
1534 | ev_ref (EV_A); /* child watcher */ |
1951 | ev_ref (EV_A); /* child watcher */ |
1535 | ev_signal_stop (EV_A_ &childev); |
1952 | ev_signal_stop (EV_A_ &childev); |
1536 | #endif |
1953 | #endif |
… | |
… | |
1540 | |
1957 | |
1541 | void |
1958 | void |
1542 | ev_default_fork (void) |
1959 | ev_default_fork (void) |
1543 | { |
1960 | { |
1544 | #if EV_MULTIPLICITY |
1961 | #if EV_MULTIPLICITY |
1545 | struct ev_loop *loop = ev_default_loop_ptr; |
1962 | EV_P = ev_default_loop_ptr; |
1546 | #endif |
1963 | #endif |
1547 | |
1964 | |
1548 | if (backend) |
|
|
1549 | postfork = 1; /* must be in line with ev_loop_fork */ |
1965 | postfork = 1; /* must be in line with ev_loop_fork */ |
1550 | } |
1966 | } |
1551 | |
1967 | |
1552 | /*****************************************************************************/ |
1968 | /*****************************************************************************/ |
1553 | |
1969 | |
1554 | void |
1970 | void |
1555 | ev_invoke (EV_P_ void *w, int revents) |
1971 | ev_invoke (EV_P_ void *w, int revents) |
1556 | { |
1972 | { |
1557 | EV_CB_INVOKE ((W)w, revents); |
1973 | EV_CB_INVOKE ((W)w, revents); |
1558 | } |
1974 | } |
1559 | |
1975 | |
1560 | void inline_speed |
1976 | unsigned int |
1561 | call_pending (EV_P) |
1977 | ev_pending_count (EV_P) |
|
|
1978 | { |
|
|
1979 | int pri; |
|
|
1980 | unsigned int count = 0; |
|
|
1981 | |
|
|
1982 | for (pri = NUMPRI; pri--; ) |
|
|
1983 | count += pendingcnt [pri]; |
|
|
1984 | |
|
|
1985 | return count; |
|
|
1986 | } |
|
|
1987 | |
|
|
1988 | void noinline |
|
|
1989 | ev_invoke_pending (EV_P) |
1562 | { |
1990 | { |
1563 | int pri; |
1991 | int pri; |
1564 | |
1992 | |
1565 | for (pri = NUMPRI; pri--; ) |
1993 | for (pri = NUMPRI; pri--; ) |
1566 | while (pendingcnt [pri]) |
1994 | while (pendingcnt [pri]) |
1567 | { |
1995 | { |
1568 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1996 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1569 | |
1997 | |
1570 | if (expect_true (p->w)) |
|
|
1571 | { |
|
|
1572 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1998 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1999 | /* ^ this is no longer true, as pending_w could be here */ |
1573 | |
2000 | |
1574 | p->w->pending = 0; |
2001 | p->w->pending = 0; |
1575 | EV_CB_INVOKE (p->w, p->events); |
2002 | EV_CB_INVOKE (p->w, p->events); |
1576 | } |
2003 | EV_FREQUENT_CHECK; |
1577 | } |
2004 | } |
1578 | } |
2005 | } |
1579 | |
2006 | |
1580 | #if EV_IDLE_ENABLE |
2007 | #if EV_IDLE_ENABLE |
1581 | void inline_size |
2008 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2009 | /* only when higher priorities are idle" logic */ |
|
|
2010 | inline_size void |
1582 | idle_reify (EV_P) |
2011 | idle_reify (EV_P) |
1583 | { |
2012 | { |
1584 | if (expect_false (idleall)) |
2013 | if (expect_false (idleall)) |
1585 | { |
2014 | { |
1586 | int pri; |
2015 | int pri; |
… | |
… | |
1598 | } |
2027 | } |
1599 | } |
2028 | } |
1600 | } |
2029 | } |
1601 | #endif |
2030 | #endif |
1602 | |
2031 | |
1603 | void inline_size |
2032 | /* make timers pending */ |
|
|
2033 | inline_size void |
1604 | timers_reify (EV_P) |
2034 | timers_reify (EV_P) |
1605 | { |
2035 | { |
|
|
2036 | EV_FREQUENT_CHECK; |
|
|
2037 | |
1606 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2038 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1607 | { |
2039 | { |
1608 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2040 | do |
1609 | |
|
|
1610 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1611 | |
|
|
1612 | /* first reschedule or stop timer */ |
|
|
1613 | if (w->repeat) |
|
|
1614 | { |
2041 | { |
|
|
2042 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2043 | |
|
|
2044 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2045 | |
|
|
2046 | /* first reschedule or stop timer */ |
|
|
2047 | if (w->repeat) |
|
|
2048 | { |
1615 | ev_at (w) += w->repeat; |
2049 | ev_at (w) += w->repeat; |
1616 | if (ev_at (w) < mn_now) |
2050 | if (ev_at (w) < mn_now) |
1617 | ev_at (w) = mn_now; |
2051 | ev_at (w) = mn_now; |
1618 | |
2052 | |
1619 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2053 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1620 | |
2054 | |
1621 | ANHE_at_set (timers [HEAP0]); |
2055 | ANHE_at_cache (timers [HEAP0]); |
1622 | downheap (timers, timercnt, HEAP0); |
2056 | downheap (timers, timercnt, HEAP0); |
|
|
2057 | } |
|
|
2058 | else |
|
|
2059 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2060 | |
|
|
2061 | EV_FREQUENT_CHECK; |
|
|
2062 | feed_reverse (EV_A_ (W)w); |
1623 | } |
2063 | } |
1624 | else |
2064 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1625 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1626 | |
2065 | |
1627 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2066 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1628 | } |
2067 | } |
1629 | } |
2068 | } |
1630 | |
2069 | |
1631 | #if EV_PERIODIC_ENABLE |
2070 | #if EV_PERIODIC_ENABLE |
1632 | void inline_size |
2071 | /* make periodics pending */ |
|
|
2072 | inline_size void |
1633 | periodics_reify (EV_P) |
2073 | periodics_reify (EV_P) |
1634 | { |
2074 | { |
|
|
2075 | EV_FREQUENT_CHECK; |
|
|
2076 | |
1635 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2077 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1636 | { |
2078 | { |
1637 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2079 | int feed_count = 0; |
1638 | |
2080 | |
1639 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2081 | do |
1640 | |
|
|
1641 | /* first reschedule or stop timer */ |
|
|
1642 | if (w->reschedule_cb) |
|
|
1643 | { |
2082 | { |
|
|
2083 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2084 | |
|
|
2085 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2086 | |
|
|
2087 | /* first reschedule or stop timer */ |
|
|
2088 | if (w->reschedule_cb) |
|
|
2089 | { |
1644 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2090 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1645 | |
2091 | |
1646 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2092 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1647 | |
2093 | |
1648 | ANHE_at_set (periodics [HEAP0]); |
2094 | ANHE_at_cache (periodics [HEAP0]); |
1649 | downheap (periodics, periodiccnt, HEAP0); |
2095 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2096 | } |
|
|
2097 | else if (w->interval) |
|
|
2098 | { |
|
|
2099 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2100 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2101 | /* this might happen because of floating point inexactness */ |
|
|
2102 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2103 | { |
|
|
2104 | ev_at (w) += w->interval; |
|
|
2105 | |
|
|
2106 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2107 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2108 | /* has effectively asked to get triggered more often than possible */ |
|
|
2109 | if (ev_at (w) < ev_rt_now) |
|
|
2110 | ev_at (w) = ev_rt_now; |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2114 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2115 | } |
|
|
2116 | else |
|
|
2117 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2118 | |
|
|
2119 | EV_FREQUENT_CHECK; |
|
|
2120 | feed_reverse (EV_A_ (W)w); |
1650 | } |
2121 | } |
1651 | else if (w->interval) |
2122 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1652 | { |
|
|
1653 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1654 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1655 | /* this might happen because of floating point inexactness */ |
|
|
1656 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1657 | { |
|
|
1658 | ev_at (w) += w->interval; |
|
|
1659 | |
2123 | |
1660 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1661 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1662 | /* has effectively asked to get triggered more often than possible */ |
|
|
1663 | if (ev_at (w) < ev_rt_now) |
|
|
1664 | ev_at (w) = ev_rt_now; |
|
|
1665 | } |
|
|
1666 | |
|
|
1667 | ANHE_at_set (periodics [HEAP0]); |
|
|
1668 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1669 | } |
|
|
1670 | else |
|
|
1671 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1672 | |
|
|
1673 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2124 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1674 | } |
2125 | } |
1675 | } |
2126 | } |
1676 | |
2127 | |
|
|
2128 | /* simply recalculate all periodics */ |
|
|
2129 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1677 | static void noinline |
2130 | static void noinline |
1678 | periodics_reschedule (EV_P) |
2131 | periodics_reschedule (EV_P) |
1679 | { |
2132 | { |
1680 | int i; |
2133 | int i; |
1681 | |
2134 | |
… | |
… | |
1687 | if (w->reschedule_cb) |
2140 | if (w->reschedule_cb) |
1688 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2141 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1689 | else if (w->interval) |
2142 | else if (w->interval) |
1690 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2143 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1691 | |
2144 | |
1692 | ANHE_at_set (periodics [i]); |
2145 | ANHE_at_cache (periodics [i]); |
1693 | } |
2146 | } |
1694 | |
2147 | |
1695 | /* we don't use floyds algorithm, uphead is simpler and is more cache-efficient */ |
2148 | reheap (periodics, periodiccnt); |
1696 | /* also, this is easy and corretc for both 2-heaps and 4-heaps */ |
2149 | } |
|
|
2150 | #endif |
|
|
2151 | |
|
|
2152 | /* adjust all timers by a given offset */ |
|
|
2153 | static void noinline |
|
|
2154 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2155 | { |
|
|
2156 | int i; |
|
|
2157 | |
1697 | for (i = 0; i < periodiccnt; ++i) |
2158 | for (i = 0; i < timercnt; ++i) |
1698 | upheap (periodics, i + HEAP0); |
2159 | { |
|
|
2160 | ANHE *he = timers + i + HEAP0; |
|
|
2161 | ANHE_w (*he)->at += adjust; |
|
|
2162 | ANHE_at_cache (*he); |
|
|
2163 | } |
1699 | } |
2164 | } |
1700 | #endif |
|
|
1701 | |
2165 | |
1702 | void inline_speed |
2166 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2167 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2168 | inline_speed void |
1703 | time_update (EV_P_ ev_tstamp max_block) |
2169 | time_update (EV_P_ ev_tstamp max_block) |
1704 | { |
2170 | { |
1705 | int i; |
|
|
1706 | |
|
|
1707 | #if EV_USE_MONOTONIC |
2171 | #if EV_USE_MONOTONIC |
1708 | if (expect_true (have_monotonic)) |
2172 | if (expect_true (have_monotonic)) |
1709 | { |
2173 | { |
|
|
2174 | int i; |
1710 | ev_tstamp odiff = rtmn_diff; |
2175 | ev_tstamp odiff = rtmn_diff; |
1711 | |
2176 | |
1712 | mn_now = get_clock (); |
2177 | mn_now = get_clock (); |
1713 | |
2178 | |
1714 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2179 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1740 | ev_rt_now = ev_time (); |
2205 | ev_rt_now = ev_time (); |
1741 | mn_now = get_clock (); |
2206 | mn_now = get_clock (); |
1742 | now_floor = mn_now; |
2207 | now_floor = mn_now; |
1743 | } |
2208 | } |
1744 | |
2209 | |
|
|
2210 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2211 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1745 | # if EV_PERIODIC_ENABLE |
2212 | # if EV_PERIODIC_ENABLE |
1746 | periodics_reschedule (EV_A); |
2213 | periodics_reschedule (EV_A); |
1747 | # endif |
2214 | # endif |
1748 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1749 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1750 | } |
2215 | } |
1751 | else |
2216 | else |
1752 | #endif |
2217 | #endif |
1753 | { |
2218 | { |
1754 | ev_rt_now = ev_time (); |
2219 | ev_rt_now = ev_time (); |
1755 | |
2220 | |
1756 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2221 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1757 | { |
2222 | { |
|
|
2223 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2224 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1758 | #if EV_PERIODIC_ENABLE |
2225 | #if EV_PERIODIC_ENABLE |
1759 | periodics_reschedule (EV_A); |
2226 | periodics_reschedule (EV_A); |
1760 | #endif |
2227 | #endif |
1761 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1762 | for (i = 0; i < timercnt; ++i) |
|
|
1763 | { |
|
|
1764 | ANHE *he = timers + i + HEAP0; |
|
|
1765 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1766 | ANHE_at_set (*he); |
|
|
1767 | } |
|
|
1768 | } |
2228 | } |
1769 | |
2229 | |
1770 | mn_now = ev_rt_now; |
2230 | mn_now = ev_rt_now; |
1771 | } |
2231 | } |
1772 | } |
2232 | } |
1773 | |
2233 | |
1774 | void |
2234 | void |
1775 | ev_ref (EV_P) |
|
|
1776 | { |
|
|
1777 | ++activecnt; |
|
|
1778 | } |
|
|
1779 | |
|
|
1780 | void |
|
|
1781 | ev_unref (EV_P) |
|
|
1782 | { |
|
|
1783 | --activecnt; |
|
|
1784 | } |
|
|
1785 | |
|
|
1786 | static int loop_done; |
|
|
1787 | |
|
|
1788 | void |
|
|
1789 | ev_loop (EV_P_ int flags) |
2235 | ev_loop (EV_P_ int flags) |
1790 | { |
2236 | { |
|
|
2237 | #if EV_MINIMAL < 2 |
|
|
2238 | ++loop_depth; |
|
|
2239 | #endif |
|
|
2240 | |
|
|
2241 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2242 | |
1791 | loop_done = EVUNLOOP_CANCEL; |
2243 | loop_done = EVUNLOOP_CANCEL; |
1792 | |
2244 | |
1793 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2245 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1794 | |
2246 | |
1795 | do |
2247 | do |
1796 | { |
2248 | { |
|
|
2249 | #if EV_VERIFY >= 2 |
|
|
2250 | ev_loop_verify (EV_A); |
|
|
2251 | #endif |
|
|
2252 | |
1797 | #ifndef _WIN32 |
2253 | #ifndef _WIN32 |
1798 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2254 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1799 | if (expect_false (getpid () != curpid)) |
2255 | if (expect_false (getpid () != curpid)) |
1800 | { |
2256 | { |
1801 | curpid = getpid (); |
2257 | curpid = getpid (); |
… | |
… | |
1807 | /* we might have forked, so queue fork handlers */ |
2263 | /* we might have forked, so queue fork handlers */ |
1808 | if (expect_false (postfork)) |
2264 | if (expect_false (postfork)) |
1809 | if (forkcnt) |
2265 | if (forkcnt) |
1810 | { |
2266 | { |
1811 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2267 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1812 | call_pending (EV_A); |
2268 | EV_INVOKE_PENDING; |
1813 | } |
2269 | } |
1814 | #endif |
2270 | #endif |
1815 | |
2271 | |
1816 | /* queue prepare watchers (and execute them) */ |
2272 | /* queue prepare watchers (and execute them) */ |
1817 | if (expect_false (preparecnt)) |
2273 | if (expect_false (preparecnt)) |
1818 | { |
2274 | { |
1819 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2275 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1820 | call_pending (EV_A); |
2276 | EV_INVOKE_PENDING; |
1821 | } |
2277 | } |
1822 | |
2278 | |
1823 | if (expect_false (!activecnt)) |
2279 | if (expect_false (loop_done)) |
1824 | break; |
2280 | break; |
1825 | |
2281 | |
1826 | /* we might have forked, so reify kernel state if necessary */ |
2282 | /* we might have forked, so reify kernel state if necessary */ |
1827 | if (expect_false (postfork)) |
2283 | if (expect_false (postfork)) |
1828 | loop_fork (EV_A); |
2284 | loop_fork (EV_A); |
… | |
… | |
1835 | ev_tstamp waittime = 0.; |
2291 | ev_tstamp waittime = 0.; |
1836 | ev_tstamp sleeptime = 0.; |
2292 | ev_tstamp sleeptime = 0.; |
1837 | |
2293 | |
1838 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2294 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1839 | { |
2295 | { |
|
|
2296 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2297 | ev_tstamp prev_mn_now = mn_now; |
|
|
2298 | |
1840 | /* update time to cancel out callback processing overhead */ |
2299 | /* update time to cancel out callback processing overhead */ |
1841 | time_update (EV_A_ 1e100); |
2300 | time_update (EV_A_ 1e100); |
1842 | |
2301 | |
1843 | waittime = MAX_BLOCKTIME; |
2302 | waittime = MAX_BLOCKTIME; |
1844 | |
2303 | |
… | |
… | |
1854 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2313 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1855 | if (waittime > to) waittime = to; |
2314 | if (waittime > to) waittime = to; |
1856 | } |
2315 | } |
1857 | #endif |
2316 | #endif |
1858 | |
2317 | |
|
|
2318 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1859 | if (expect_false (waittime < timeout_blocktime)) |
2319 | if (expect_false (waittime < timeout_blocktime)) |
1860 | waittime = timeout_blocktime; |
2320 | waittime = timeout_blocktime; |
1861 | |
2321 | |
1862 | sleeptime = waittime - backend_fudge; |
2322 | /* extra check because io_blocktime is commonly 0 */ |
1863 | |
|
|
1864 | if (expect_true (sleeptime > io_blocktime)) |
2323 | if (expect_false (io_blocktime)) |
1865 | sleeptime = io_blocktime; |
|
|
1866 | |
|
|
1867 | if (sleeptime) |
|
|
1868 | { |
2324 | { |
|
|
2325 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2326 | |
|
|
2327 | if (sleeptime > waittime - backend_fudge) |
|
|
2328 | sleeptime = waittime - backend_fudge; |
|
|
2329 | |
|
|
2330 | if (expect_true (sleeptime > 0.)) |
|
|
2331 | { |
1869 | ev_sleep (sleeptime); |
2332 | ev_sleep (sleeptime); |
1870 | waittime -= sleeptime; |
2333 | waittime -= sleeptime; |
|
|
2334 | } |
1871 | } |
2335 | } |
1872 | } |
2336 | } |
1873 | |
2337 | |
|
|
2338 | #if EV_MINIMAL < 2 |
1874 | ++loop_count; |
2339 | ++loop_count; |
|
|
2340 | #endif |
|
|
2341 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1875 | backend_poll (EV_A_ waittime); |
2342 | backend_poll (EV_A_ waittime); |
|
|
2343 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1876 | |
2344 | |
1877 | /* update ev_rt_now, do magic */ |
2345 | /* update ev_rt_now, do magic */ |
1878 | time_update (EV_A_ waittime + sleeptime); |
2346 | time_update (EV_A_ waittime + sleeptime); |
1879 | } |
2347 | } |
1880 | |
2348 | |
… | |
… | |
1891 | |
2359 | |
1892 | /* queue check watchers, to be executed first */ |
2360 | /* queue check watchers, to be executed first */ |
1893 | if (expect_false (checkcnt)) |
2361 | if (expect_false (checkcnt)) |
1894 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2362 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1895 | |
2363 | |
1896 | call_pending (EV_A); |
2364 | EV_INVOKE_PENDING; |
1897 | } |
2365 | } |
1898 | while (expect_true ( |
2366 | while (expect_true ( |
1899 | activecnt |
2367 | activecnt |
1900 | && !loop_done |
2368 | && !loop_done |
1901 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2369 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1902 | )); |
2370 | )); |
1903 | |
2371 | |
1904 | if (loop_done == EVUNLOOP_ONE) |
2372 | if (loop_done == EVUNLOOP_ONE) |
1905 | loop_done = EVUNLOOP_CANCEL; |
2373 | loop_done = EVUNLOOP_CANCEL; |
|
|
2374 | |
|
|
2375 | #if EV_MINIMAL < 2 |
|
|
2376 | --loop_depth; |
|
|
2377 | #endif |
1906 | } |
2378 | } |
1907 | |
2379 | |
1908 | void |
2380 | void |
1909 | ev_unloop (EV_P_ int how) |
2381 | ev_unloop (EV_P_ int how) |
1910 | { |
2382 | { |
1911 | loop_done = how; |
2383 | loop_done = how; |
1912 | } |
2384 | } |
1913 | |
2385 | |
|
|
2386 | void |
|
|
2387 | ev_ref (EV_P) |
|
|
2388 | { |
|
|
2389 | ++activecnt; |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | void |
|
|
2393 | ev_unref (EV_P) |
|
|
2394 | { |
|
|
2395 | --activecnt; |
|
|
2396 | } |
|
|
2397 | |
|
|
2398 | void |
|
|
2399 | ev_now_update (EV_P) |
|
|
2400 | { |
|
|
2401 | time_update (EV_A_ 1e100); |
|
|
2402 | } |
|
|
2403 | |
|
|
2404 | void |
|
|
2405 | ev_suspend (EV_P) |
|
|
2406 | { |
|
|
2407 | ev_now_update (EV_A); |
|
|
2408 | } |
|
|
2409 | |
|
|
2410 | void |
|
|
2411 | ev_resume (EV_P) |
|
|
2412 | { |
|
|
2413 | ev_tstamp mn_prev = mn_now; |
|
|
2414 | |
|
|
2415 | ev_now_update (EV_A); |
|
|
2416 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2417 | #if EV_PERIODIC_ENABLE |
|
|
2418 | /* TODO: really do this? */ |
|
|
2419 | periodics_reschedule (EV_A); |
|
|
2420 | #endif |
|
|
2421 | } |
|
|
2422 | |
1914 | /*****************************************************************************/ |
2423 | /*****************************************************************************/ |
|
|
2424 | /* singly-linked list management, used when the expected list length is short */ |
1915 | |
2425 | |
1916 | void inline_size |
2426 | inline_size void |
1917 | wlist_add (WL *head, WL elem) |
2427 | wlist_add (WL *head, WL elem) |
1918 | { |
2428 | { |
1919 | elem->next = *head; |
2429 | elem->next = *head; |
1920 | *head = elem; |
2430 | *head = elem; |
1921 | } |
2431 | } |
1922 | |
2432 | |
1923 | void inline_size |
2433 | inline_size void |
1924 | wlist_del (WL *head, WL elem) |
2434 | wlist_del (WL *head, WL elem) |
1925 | { |
2435 | { |
1926 | while (*head) |
2436 | while (*head) |
1927 | { |
2437 | { |
1928 | if (*head == elem) |
2438 | if (expect_true (*head == elem)) |
1929 | { |
2439 | { |
1930 | *head = elem->next; |
2440 | *head = elem->next; |
1931 | return; |
2441 | break; |
1932 | } |
2442 | } |
1933 | |
2443 | |
1934 | head = &(*head)->next; |
2444 | head = &(*head)->next; |
1935 | } |
2445 | } |
1936 | } |
2446 | } |
1937 | |
2447 | |
1938 | void inline_speed |
2448 | /* internal, faster, version of ev_clear_pending */ |
|
|
2449 | inline_speed void |
1939 | clear_pending (EV_P_ W w) |
2450 | clear_pending (EV_P_ W w) |
1940 | { |
2451 | { |
1941 | if (w->pending) |
2452 | if (w->pending) |
1942 | { |
2453 | { |
1943 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2454 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1944 | w->pending = 0; |
2455 | w->pending = 0; |
1945 | } |
2456 | } |
1946 | } |
2457 | } |
1947 | |
2458 | |
1948 | int |
2459 | int |
… | |
… | |
1952 | int pending = w_->pending; |
2463 | int pending = w_->pending; |
1953 | |
2464 | |
1954 | if (expect_true (pending)) |
2465 | if (expect_true (pending)) |
1955 | { |
2466 | { |
1956 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2467 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2468 | p->w = (W)&pending_w; |
1957 | w_->pending = 0; |
2469 | w_->pending = 0; |
1958 | p->w = 0; |
|
|
1959 | return p->events; |
2470 | return p->events; |
1960 | } |
2471 | } |
1961 | else |
2472 | else |
1962 | return 0; |
2473 | return 0; |
1963 | } |
2474 | } |
1964 | |
2475 | |
1965 | void inline_size |
2476 | inline_size void |
1966 | pri_adjust (EV_P_ W w) |
2477 | pri_adjust (EV_P_ W w) |
1967 | { |
2478 | { |
1968 | int pri = w->priority; |
2479 | int pri = ev_priority (w); |
1969 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2480 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1970 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2481 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1971 | w->priority = pri; |
2482 | ev_set_priority (w, pri); |
1972 | } |
2483 | } |
1973 | |
2484 | |
1974 | void inline_speed |
2485 | inline_speed void |
1975 | ev_start (EV_P_ W w, int active) |
2486 | ev_start (EV_P_ W w, int active) |
1976 | { |
2487 | { |
1977 | pri_adjust (EV_A_ w); |
2488 | pri_adjust (EV_A_ w); |
1978 | w->active = active; |
2489 | w->active = active; |
1979 | ev_ref (EV_A); |
2490 | ev_ref (EV_A); |
1980 | } |
2491 | } |
1981 | |
2492 | |
1982 | void inline_size |
2493 | inline_size void |
1983 | ev_stop (EV_P_ W w) |
2494 | ev_stop (EV_P_ W w) |
1984 | { |
2495 | { |
1985 | ev_unref (EV_A); |
2496 | ev_unref (EV_A); |
1986 | w->active = 0; |
2497 | w->active = 0; |
1987 | } |
2498 | } |
… | |
… | |
1994 | int fd = w->fd; |
2505 | int fd = w->fd; |
1995 | |
2506 | |
1996 | if (expect_false (ev_is_active (w))) |
2507 | if (expect_false (ev_is_active (w))) |
1997 | return; |
2508 | return; |
1998 | |
2509 | |
1999 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2510 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2511 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2512 | |
|
|
2513 | EV_FREQUENT_CHECK; |
2000 | |
2514 | |
2001 | ev_start (EV_A_ (W)w, 1); |
2515 | ev_start (EV_A_ (W)w, 1); |
2002 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2516 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2003 | wlist_add (&anfds[fd].head, (WL)w); |
2517 | wlist_add (&anfds[fd].head, (WL)w); |
2004 | |
2518 | |
2005 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2519 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2006 | w->events &= ~EV_IOFDSET; |
2520 | w->events &= ~EV__IOFDSET; |
|
|
2521 | |
|
|
2522 | EV_FREQUENT_CHECK; |
2007 | } |
2523 | } |
2008 | |
2524 | |
2009 | void noinline |
2525 | void noinline |
2010 | ev_io_stop (EV_P_ ev_io *w) |
2526 | ev_io_stop (EV_P_ ev_io *w) |
2011 | { |
2527 | { |
2012 | clear_pending (EV_A_ (W)w); |
2528 | clear_pending (EV_A_ (W)w); |
2013 | if (expect_false (!ev_is_active (w))) |
2529 | if (expect_false (!ev_is_active (w))) |
2014 | return; |
2530 | return; |
2015 | |
2531 | |
2016 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2532 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2533 | |
|
|
2534 | EV_FREQUENT_CHECK; |
2017 | |
2535 | |
2018 | wlist_del (&anfds[w->fd].head, (WL)w); |
2536 | wlist_del (&anfds[w->fd].head, (WL)w); |
2019 | ev_stop (EV_A_ (W)w); |
2537 | ev_stop (EV_A_ (W)w); |
2020 | |
2538 | |
2021 | fd_change (EV_A_ w->fd, 1); |
2539 | fd_change (EV_A_ w->fd, 1); |
|
|
2540 | |
|
|
2541 | EV_FREQUENT_CHECK; |
2022 | } |
2542 | } |
2023 | |
2543 | |
2024 | void noinline |
2544 | void noinline |
2025 | ev_timer_start (EV_P_ ev_timer *w) |
2545 | ev_timer_start (EV_P_ ev_timer *w) |
2026 | { |
2546 | { |
2027 | if (expect_false (ev_is_active (w))) |
2547 | if (expect_false (ev_is_active (w))) |
2028 | return; |
2548 | return; |
2029 | |
2549 | |
2030 | ev_at (w) += mn_now; |
2550 | ev_at (w) += mn_now; |
2031 | |
2551 | |
2032 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2552 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2033 | |
2553 | |
|
|
2554 | EV_FREQUENT_CHECK; |
|
|
2555 | |
|
|
2556 | ++timercnt; |
2034 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2557 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2035 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
2558 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
2036 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2559 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2037 | ANHE_at_set (timers [ev_active (w)]); |
2560 | ANHE_at_cache (timers [ev_active (w)]); |
2038 | upheap (timers, ev_active (w)); |
2561 | upheap (timers, ev_active (w)); |
2039 | |
2562 | |
|
|
2563 | EV_FREQUENT_CHECK; |
|
|
2564 | |
2040 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2565 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2041 | } |
2566 | } |
2042 | |
2567 | |
2043 | void noinline |
2568 | void noinline |
2044 | ev_timer_stop (EV_P_ ev_timer *w) |
2569 | ev_timer_stop (EV_P_ ev_timer *w) |
2045 | { |
2570 | { |
2046 | clear_pending (EV_A_ (W)w); |
2571 | clear_pending (EV_A_ (W)w); |
2047 | if (expect_false (!ev_is_active (w))) |
2572 | if (expect_false (!ev_is_active (w))) |
2048 | return; |
2573 | return; |
2049 | |
2574 | |
|
|
2575 | EV_FREQUENT_CHECK; |
|
|
2576 | |
2050 | { |
2577 | { |
2051 | int active = ev_active (w); |
2578 | int active = ev_active (w); |
2052 | |
2579 | |
2053 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2580 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2054 | |
2581 | |
|
|
2582 | --timercnt; |
|
|
2583 | |
2055 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2584 | if (expect_true (active < timercnt + HEAP0)) |
2056 | { |
2585 | { |
2057 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2586 | timers [active] = timers [timercnt + HEAP0]; |
2058 | adjustheap (timers, timercnt, active); |
2587 | adjustheap (timers, timercnt, active); |
2059 | } |
2588 | } |
2060 | |
|
|
2061 | --timercnt; |
|
|
2062 | } |
2589 | } |
|
|
2590 | |
|
|
2591 | EV_FREQUENT_CHECK; |
2063 | |
2592 | |
2064 | ev_at (w) -= mn_now; |
2593 | ev_at (w) -= mn_now; |
2065 | |
2594 | |
2066 | ev_stop (EV_A_ (W)w); |
2595 | ev_stop (EV_A_ (W)w); |
2067 | } |
2596 | } |
2068 | |
2597 | |
2069 | void noinline |
2598 | void noinline |
2070 | ev_timer_again (EV_P_ ev_timer *w) |
2599 | ev_timer_again (EV_P_ ev_timer *w) |
2071 | { |
2600 | { |
|
|
2601 | EV_FREQUENT_CHECK; |
|
|
2602 | |
2072 | if (ev_is_active (w)) |
2603 | if (ev_is_active (w)) |
2073 | { |
2604 | { |
2074 | if (w->repeat) |
2605 | if (w->repeat) |
2075 | { |
2606 | { |
2076 | ev_at (w) = mn_now + w->repeat; |
2607 | ev_at (w) = mn_now + w->repeat; |
2077 | ANHE_at_set (timers [ev_active (w)]); |
2608 | ANHE_at_cache (timers [ev_active (w)]); |
2078 | adjustheap (timers, timercnt, ev_active (w)); |
2609 | adjustheap (timers, timercnt, ev_active (w)); |
2079 | } |
2610 | } |
2080 | else |
2611 | else |
2081 | ev_timer_stop (EV_A_ w); |
2612 | ev_timer_stop (EV_A_ w); |
2082 | } |
2613 | } |
2083 | else if (w->repeat) |
2614 | else if (w->repeat) |
2084 | { |
2615 | { |
2085 | ev_at (w) = w->repeat; |
2616 | ev_at (w) = w->repeat; |
2086 | ev_timer_start (EV_A_ w); |
2617 | ev_timer_start (EV_A_ w); |
2087 | } |
2618 | } |
|
|
2619 | |
|
|
2620 | EV_FREQUENT_CHECK; |
|
|
2621 | } |
|
|
2622 | |
|
|
2623 | ev_tstamp |
|
|
2624 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2625 | { |
|
|
2626 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2088 | } |
2627 | } |
2089 | |
2628 | |
2090 | #if EV_PERIODIC_ENABLE |
2629 | #if EV_PERIODIC_ENABLE |
2091 | void noinline |
2630 | void noinline |
2092 | ev_periodic_start (EV_P_ ev_periodic *w) |
2631 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2096 | |
2635 | |
2097 | if (w->reschedule_cb) |
2636 | if (w->reschedule_cb) |
2098 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2637 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2099 | else if (w->interval) |
2638 | else if (w->interval) |
2100 | { |
2639 | { |
2101 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2640 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2102 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2641 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2103 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2642 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2104 | } |
2643 | } |
2105 | else |
2644 | else |
2106 | ev_at (w) = w->offset; |
2645 | ev_at (w) = w->offset; |
2107 | |
2646 | |
|
|
2647 | EV_FREQUENT_CHECK; |
|
|
2648 | |
|
|
2649 | ++periodiccnt; |
2108 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2650 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2109 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2651 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2110 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2652 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2111 | ANHE_at_set (periodics [ev_active (w)]); |
2653 | ANHE_at_cache (periodics [ev_active (w)]); |
2112 | upheap (periodics, ev_active (w)); |
2654 | upheap (periodics, ev_active (w)); |
2113 | |
2655 | |
|
|
2656 | EV_FREQUENT_CHECK; |
|
|
2657 | |
2114 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2658 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2115 | } |
2659 | } |
2116 | |
2660 | |
2117 | void noinline |
2661 | void noinline |
2118 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2662 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2119 | { |
2663 | { |
2120 | clear_pending (EV_A_ (W)w); |
2664 | clear_pending (EV_A_ (W)w); |
2121 | if (expect_false (!ev_is_active (w))) |
2665 | if (expect_false (!ev_is_active (w))) |
2122 | return; |
2666 | return; |
2123 | |
2667 | |
|
|
2668 | EV_FREQUENT_CHECK; |
|
|
2669 | |
2124 | { |
2670 | { |
2125 | int active = ev_active (w); |
2671 | int active = ev_active (w); |
2126 | |
2672 | |
2127 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2673 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2128 | |
2674 | |
|
|
2675 | --periodiccnt; |
|
|
2676 | |
2129 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2677 | if (expect_true (active < periodiccnt + HEAP0)) |
2130 | { |
2678 | { |
2131 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2679 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2132 | adjustheap (periodics, periodiccnt, active); |
2680 | adjustheap (periodics, periodiccnt, active); |
2133 | } |
2681 | } |
2134 | |
|
|
2135 | --periodiccnt; |
|
|
2136 | } |
2682 | } |
|
|
2683 | |
|
|
2684 | EV_FREQUENT_CHECK; |
2137 | |
2685 | |
2138 | ev_stop (EV_A_ (W)w); |
2686 | ev_stop (EV_A_ (W)w); |
2139 | } |
2687 | } |
2140 | |
2688 | |
2141 | void noinline |
2689 | void noinline |
… | |
… | |
2152 | #endif |
2700 | #endif |
2153 | |
2701 | |
2154 | void noinline |
2702 | void noinline |
2155 | ev_signal_start (EV_P_ ev_signal *w) |
2703 | ev_signal_start (EV_P_ ev_signal *w) |
2156 | { |
2704 | { |
2157 | #if EV_MULTIPLICITY |
|
|
2158 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2159 | #endif |
|
|
2160 | if (expect_false (ev_is_active (w))) |
2705 | if (expect_false (ev_is_active (w))) |
2161 | return; |
2706 | return; |
2162 | |
2707 | |
2163 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2708 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2164 | |
2709 | |
2165 | evpipe_init (EV_A); |
2710 | #if EV_MULTIPLICITY |
|
|
2711 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2712 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2166 | |
2713 | |
|
|
2714 | signals [w->signum - 1].loop = EV_A; |
|
|
2715 | #endif |
|
|
2716 | |
|
|
2717 | EV_FREQUENT_CHECK; |
|
|
2718 | |
|
|
2719 | #if EV_USE_SIGNALFD |
|
|
2720 | if (sigfd == -2) |
2167 | { |
2721 | { |
2168 | #ifndef _WIN32 |
2722 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2169 | sigset_t full, prev; |
2723 | if (sigfd < 0 && errno == EINVAL) |
2170 | sigfillset (&full); |
2724 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2171 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2172 | #endif |
|
|
2173 | |
2725 | |
2174 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2726 | if (sigfd >= 0) |
|
|
2727 | { |
|
|
2728 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2175 | |
2729 | |
2176 | #ifndef _WIN32 |
2730 | sigemptyset (&sigfd_set); |
2177 | sigprocmask (SIG_SETMASK, &prev, 0); |
2731 | |
2178 | #endif |
2732 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2733 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2734 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2735 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2736 | } |
2179 | } |
2737 | } |
|
|
2738 | |
|
|
2739 | if (sigfd >= 0) |
|
|
2740 | { |
|
|
2741 | /* TODO: check .head */ |
|
|
2742 | sigaddset (&sigfd_set, w->signum); |
|
|
2743 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2744 | |
|
|
2745 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2746 | } |
|
|
2747 | #endif |
2180 | |
2748 | |
2181 | ev_start (EV_A_ (W)w, 1); |
2749 | ev_start (EV_A_ (W)w, 1); |
2182 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2750 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2183 | |
2751 | |
2184 | if (!((WL)w)->next) |
2752 | if (!((WL)w)->next) |
|
|
2753 | # if EV_USE_SIGNALFD |
|
|
2754 | if (sigfd < 0) /*TODO*/ |
|
|
2755 | # endif |
2185 | { |
2756 | { |
2186 | #if _WIN32 |
2757 | # if _WIN32 |
2187 | signal (w->signum, ev_sighandler); |
2758 | signal (w->signum, ev_sighandler); |
2188 | #else |
2759 | # else |
2189 | struct sigaction sa; |
2760 | struct sigaction sa; |
|
|
2761 | |
|
|
2762 | evpipe_init (EV_A); |
|
|
2763 | |
2190 | sa.sa_handler = ev_sighandler; |
2764 | sa.sa_handler = ev_sighandler; |
2191 | sigfillset (&sa.sa_mask); |
2765 | sigfillset (&sa.sa_mask); |
2192 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2766 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2193 | sigaction (w->signum, &sa, 0); |
2767 | sigaction (w->signum, &sa, 0); |
|
|
2768 | |
|
|
2769 | sigemptyset (&sa.sa_mask); |
|
|
2770 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2771 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2194 | #endif |
2772 | #endif |
2195 | } |
2773 | } |
|
|
2774 | |
|
|
2775 | EV_FREQUENT_CHECK; |
2196 | } |
2776 | } |
2197 | |
2777 | |
2198 | void noinline |
2778 | void noinline |
2199 | ev_signal_stop (EV_P_ ev_signal *w) |
2779 | ev_signal_stop (EV_P_ ev_signal *w) |
2200 | { |
2780 | { |
2201 | clear_pending (EV_A_ (W)w); |
2781 | clear_pending (EV_A_ (W)w); |
2202 | if (expect_false (!ev_is_active (w))) |
2782 | if (expect_false (!ev_is_active (w))) |
2203 | return; |
2783 | return; |
2204 | |
2784 | |
|
|
2785 | EV_FREQUENT_CHECK; |
|
|
2786 | |
2205 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2787 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2206 | ev_stop (EV_A_ (W)w); |
2788 | ev_stop (EV_A_ (W)w); |
2207 | |
2789 | |
2208 | if (!signals [w->signum - 1].head) |
2790 | if (!signals [w->signum - 1].head) |
|
|
2791 | { |
|
|
2792 | #if EV_MULTIPLICITY |
|
|
2793 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2794 | #endif |
|
|
2795 | #if EV_USE_SIGNALFD |
|
|
2796 | if (sigfd >= 0) |
|
|
2797 | { |
|
|
2798 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2799 | sigdelset (&sigfd_set, w->signum); |
|
|
2800 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2801 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2802 | /*TODO: maybe unblock signal? */ |
|
|
2803 | } |
|
|
2804 | else |
|
|
2805 | #endif |
2209 | signal (w->signum, SIG_DFL); |
2806 | signal (w->signum, SIG_DFL); |
|
|
2807 | } |
|
|
2808 | |
|
|
2809 | EV_FREQUENT_CHECK; |
2210 | } |
2810 | } |
2211 | |
2811 | |
2212 | void |
2812 | void |
2213 | ev_child_start (EV_P_ ev_child *w) |
2813 | ev_child_start (EV_P_ ev_child *w) |
2214 | { |
2814 | { |
2215 | #if EV_MULTIPLICITY |
2815 | #if EV_MULTIPLICITY |
2216 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2816 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2217 | #endif |
2817 | #endif |
2218 | if (expect_false (ev_is_active (w))) |
2818 | if (expect_false (ev_is_active (w))) |
2219 | return; |
2819 | return; |
2220 | |
2820 | |
|
|
2821 | EV_FREQUENT_CHECK; |
|
|
2822 | |
2221 | ev_start (EV_A_ (W)w, 1); |
2823 | ev_start (EV_A_ (W)w, 1); |
2222 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2824 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2825 | |
|
|
2826 | EV_FREQUENT_CHECK; |
2223 | } |
2827 | } |
2224 | |
2828 | |
2225 | void |
2829 | void |
2226 | ev_child_stop (EV_P_ ev_child *w) |
2830 | ev_child_stop (EV_P_ ev_child *w) |
2227 | { |
2831 | { |
2228 | clear_pending (EV_A_ (W)w); |
2832 | clear_pending (EV_A_ (W)w); |
2229 | if (expect_false (!ev_is_active (w))) |
2833 | if (expect_false (!ev_is_active (w))) |
2230 | return; |
2834 | return; |
2231 | |
2835 | |
|
|
2836 | EV_FREQUENT_CHECK; |
|
|
2837 | |
2232 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2838 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2233 | ev_stop (EV_A_ (W)w); |
2839 | ev_stop (EV_A_ (W)w); |
|
|
2840 | |
|
|
2841 | EV_FREQUENT_CHECK; |
2234 | } |
2842 | } |
2235 | |
2843 | |
2236 | #if EV_STAT_ENABLE |
2844 | #if EV_STAT_ENABLE |
2237 | |
2845 | |
2238 | # ifdef _WIN32 |
2846 | # ifdef _WIN32 |
2239 | # undef lstat |
2847 | # undef lstat |
2240 | # define lstat(a,b) _stati64 (a,b) |
2848 | # define lstat(a,b) _stati64 (a,b) |
2241 | # endif |
2849 | # endif |
2242 | |
2850 | |
2243 | #define DEF_STAT_INTERVAL 5.0074891 |
2851 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2852 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2244 | #define MIN_STAT_INTERVAL 0.1074891 |
2853 | #define MIN_STAT_INTERVAL 0.1074891 |
2245 | |
2854 | |
2246 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2855 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2247 | |
2856 | |
2248 | #if EV_USE_INOTIFY |
2857 | #if EV_USE_INOTIFY |
2249 | # define EV_INOTIFY_BUFSIZE 8192 |
2858 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2253 | { |
2862 | { |
2254 | 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); |
2863 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2255 | |
2864 | |
2256 | if (w->wd < 0) |
2865 | if (w->wd < 0) |
2257 | { |
2866 | { |
|
|
2867 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2258 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2868 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2259 | |
2869 | |
2260 | /* monitor some parent directory for speedup hints */ |
2870 | /* monitor some parent directory for speedup hints */ |
2261 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2871 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2262 | /* but an efficiency issue only */ |
2872 | /* but an efficiency issue only */ |
2263 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2873 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2264 | { |
2874 | { |
2265 | char path [4096]; |
2875 | char path [4096]; |
2266 | strcpy (path, w->path); |
2876 | strcpy (path, w->path); |
… | |
… | |
2270 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2880 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2271 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2881 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2272 | |
2882 | |
2273 | char *pend = strrchr (path, '/'); |
2883 | char *pend = strrchr (path, '/'); |
2274 | |
2884 | |
2275 | if (!pend) |
2885 | if (!pend || pend == path) |
2276 | break; /* whoops, no '/', complain to your admin */ |
2886 | break; |
2277 | |
2887 | |
2278 | *pend = 0; |
2888 | *pend = 0; |
2279 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2889 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2280 | } |
2890 | } |
2281 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2891 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2282 | } |
2892 | } |
2283 | } |
2893 | } |
2284 | else |
|
|
2285 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2286 | |
2894 | |
2287 | if (w->wd >= 0) |
2895 | if (w->wd >= 0) |
|
|
2896 | { |
|
|
2897 | struct statfs sfs; |
|
|
2898 | |
2288 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2899 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2900 | |
|
|
2901 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2902 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2903 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2904 | |
|
|
2905 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2906 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2907 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2908 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2909 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2910 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2911 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2912 | return; |
|
|
2913 | |
|
|
2914 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2915 | ev_timer_again (EV_A_ &w->timer); |
|
|
2916 | } |
2289 | } |
2917 | } |
2290 | |
2918 | |
2291 | static void noinline |
2919 | static void noinline |
2292 | infy_del (EV_P_ ev_stat *w) |
2920 | infy_del (EV_P_ ev_stat *w) |
2293 | { |
2921 | { |
… | |
… | |
2307 | |
2935 | |
2308 | static void noinline |
2936 | static void noinline |
2309 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2937 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2310 | { |
2938 | { |
2311 | if (slot < 0) |
2939 | if (slot < 0) |
2312 | /* overflow, need to check for all hahs slots */ |
2940 | /* overflow, need to check for all hash slots */ |
2313 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2941 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2314 | infy_wd (EV_A_ slot, wd, ev); |
2942 | infy_wd (EV_A_ slot, wd, ev); |
2315 | else |
2943 | else |
2316 | { |
2944 | { |
2317 | WL w_; |
2945 | WL w_; |
… | |
… | |
2323 | |
2951 | |
2324 | if (w->wd == wd || wd == -1) |
2952 | if (w->wd == wd || wd == -1) |
2325 | { |
2953 | { |
2326 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2954 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2327 | { |
2955 | { |
|
|
2956 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2328 | w->wd = -1; |
2957 | w->wd = -1; |
2329 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2958 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2330 | } |
2959 | } |
2331 | |
2960 | |
2332 | stat_timer_cb (EV_A_ &w->timer, 0); |
2961 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2345 | |
2974 | |
2346 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2975 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2347 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2976 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2348 | } |
2977 | } |
2349 | |
2978 | |
2350 | void inline_size |
2979 | inline_size void |
|
|
2980 | check_2625 (EV_P) |
|
|
2981 | { |
|
|
2982 | /* kernels < 2.6.25 are borked |
|
|
2983 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2984 | */ |
|
|
2985 | struct utsname buf; |
|
|
2986 | int major, minor, micro; |
|
|
2987 | |
|
|
2988 | if (uname (&buf)) |
|
|
2989 | return; |
|
|
2990 | |
|
|
2991 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2992 | return; |
|
|
2993 | |
|
|
2994 | if (major < 2 |
|
|
2995 | || (major == 2 && minor < 6) |
|
|
2996 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2997 | return; |
|
|
2998 | |
|
|
2999 | fs_2625 = 1; |
|
|
3000 | } |
|
|
3001 | |
|
|
3002 | inline_size int |
|
|
3003 | infy_newfd (void) |
|
|
3004 | { |
|
|
3005 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3006 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3007 | if (fd >= 0) |
|
|
3008 | return fd; |
|
|
3009 | #endif |
|
|
3010 | return inotify_init (); |
|
|
3011 | } |
|
|
3012 | |
|
|
3013 | inline_size void |
2351 | infy_init (EV_P) |
3014 | infy_init (EV_P) |
2352 | { |
3015 | { |
2353 | if (fs_fd != -2) |
3016 | if (fs_fd != -2) |
2354 | return; |
3017 | return; |
2355 | |
3018 | |
|
|
3019 | fs_fd = -1; |
|
|
3020 | |
|
|
3021 | check_2625 (EV_A); |
|
|
3022 | |
2356 | fs_fd = inotify_init (); |
3023 | fs_fd = infy_newfd (); |
2357 | |
3024 | |
2358 | if (fs_fd >= 0) |
3025 | if (fs_fd >= 0) |
2359 | { |
3026 | { |
|
|
3027 | fd_intern (fs_fd); |
2360 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3028 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2361 | ev_set_priority (&fs_w, EV_MAXPRI); |
3029 | ev_set_priority (&fs_w, EV_MAXPRI); |
2362 | ev_io_start (EV_A_ &fs_w); |
3030 | ev_io_start (EV_A_ &fs_w); |
2363 | } |
3031 | } |
2364 | } |
3032 | } |
2365 | |
3033 | |
2366 | void inline_size |
3034 | inline_size void |
2367 | infy_fork (EV_P) |
3035 | infy_fork (EV_P) |
2368 | { |
3036 | { |
2369 | int slot; |
3037 | int slot; |
2370 | |
3038 | |
2371 | if (fs_fd < 0) |
3039 | if (fs_fd < 0) |
2372 | return; |
3040 | return; |
2373 | |
3041 | |
|
|
3042 | ev_io_stop (EV_A_ &fs_w); |
2374 | close (fs_fd); |
3043 | close (fs_fd); |
2375 | fs_fd = inotify_init (); |
3044 | fs_fd = infy_newfd (); |
|
|
3045 | |
|
|
3046 | if (fs_fd >= 0) |
|
|
3047 | { |
|
|
3048 | fd_intern (fs_fd); |
|
|
3049 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3050 | ev_io_start (EV_A_ &fs_w); |
|
|
3051 | } |
2376 | |
3052 | |
2377 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3053 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2378 | { |
3054 | { |
2379 | WL w_ = fs_hash [slot].head; |
3055 | WL w_ = fs_hash [slot].head; |
2380 | fs_hash [slot].head = 0; |
3056 | fs_hash [slot].head = 0; |
… | |
… | |
2387 | w->wd = -1; |
3063 | w->wd = -1; |
2388 | |
3064 | |
2389 | if (fs_fd >= 0) |
3065 | if (fs_fd >= 0) |
2390 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3066 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2391 | else |
3067 | else |
2392 | ev_timer_start (EV_A_ &w->timer); |
3068 | ev_timer_again (EV_A_ &w->timer); |
2393 | } |
3069 | } |
2394 | |
|
|
2395 | } |
3070 | } |
2396 | } |
3071 | } |
2397 | |
3072 | |
|
|
3073 | #endif |
|
|
3074 | |
|
|
3075 | #ifdef _WIN32 |
|
|
3076 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3077 | #else |
|
|
3078 | # define EV_LSTAT(p,b) lstat (p, b) |
2398 | #endif |
3079 | #endif |
2399 | |
3080 | |
2400 | void |
3081 | void |
2401 | ev_stat_stat (EV_P_ ev_stat *w) |
3082 | ev_stat_stat (EV_P_ ev_stat *w) |
2402 | { |
3083 | { |
… | |
… | |
2429 | || w->prev.st_atime != w->attr.st_atime |
3110 | || w->prev.st_atime != w->attr.st_atime |
2430 | || w->prev.st_mtime != w->attr.st_mtime |
3111 | || w->prev.st_mtime != w->attr.st_mtime |
2431 | || w->prev.st_ctime != w->attr.st_ctime |
3112 | || w->prev.st_ctime != w->attr.st_ctime |
2432 | ) { |
3113 | ) { |
2433 | #if EV_USE_INOTIFY |
3114 | #if EV_USE_INOTIFY |
|
|
3115 | if (fs_fd >= 0) |
|
|
3116 | { |
2434 | infy_del (EV_A_ w); |
3117 | infy_del (EV_A_ w); |
2435 | infy_add (EV_A_ w); |
3118 | infy_add (EV_A_ w); |
2436 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3119 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3120 | } |
2437 | #endif |
3121 | #endif |
2438 | |
3122 | |
2439 | ev_feed_event (EV_A_ w, EV_STAT); |
3123 | ev_feed_event (EV_A_ w, EV_STAT); |
2440 | } |
3124 | } |
2441 | } |
3125 | } |
… | |
… | |
2444 | ev_stat_start (EV_P_ ev_stat *w) |
3128 | ev_stat_start (EV_P_ ev_stat *w) |
2445 | { |
3129 | { |
2446 | if (expect_false (ev_is_active (w))) |
3130 | if (expect_false (ev_is_active (w))) |
2447 | return; |
3131 | return; |
2448 | |
3132 | |
2449 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2450 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2451 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2452 | |
|
|
2453 | ev_stat_stat (EV_A_ w); |
3133 | ev_stat_stat (EV_A_ w); |
2454 | |
3134 | |
|
|
3135 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2455 | if (w->interval < MIN_STAT_INTERVAL) |
3136 | w->interval = MIN_STAT_INTERVAL; |
2456 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2457 | |
3137 | |
2458 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3138 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2459 | ev_set_priority (&w->timer, ev_priority (w)); |
3139 | ev_set_priority (&w->timer, ev_priority (w)); |
2460 | |
3140 | |
2461 | #if EV_USE_INOTIFY |
3141 | #if EV_USE_INOTIFY |
2462 | infy_init (EV_A); |
3142 | infy_init (EV_A); |
2463 | |
3143 | |
2464 | if (fs_fd >= 0) |
3144 | if (fs_fd >= 0) |
2465 | infy_add (EV_A_ w); |
3145 | infy_add (EV_A_ w); |
2466 | else |
3146 | else |
2467 | #endif |
3147 | #endif |
2468 | ev_timer_start (EV_A_ &w->timer); |
3148 | ev_timer_again (EV_A_ &w->timer); |
2469 | |
3149 | |
2470 | ev_start (EV_A_ (W)w, 1); |
3150 | ev_start (EV_A_ (W)w, 1); |
|
|
3151 | |
|
|
3152 | EV_FREQUENT_CHECK; |
2471 | } |
3153 | } |
2472 | |
3154 | |
2473 | void |
3155 | void |
2474 | ev_stat_stop (EV_P_ ev_stat *w) |
3156 | ev_stat_stop (EV_P_ ev_stat *w) |
2475 | { |
3157 | { |
2476 | clear_pending (EV_A_ (W)w); |
3158 | clear_pending (EV_A_ (W)w); |
2477 | if (expect_false (!ev_is_active (w))) |
3159 | if (expect_false (!ev_is_active (w))) |
2478 | return; |
3160 | return; |
2479 | |
3161 | |
|
|
3162 | EV_FREQUENT_CHECK; |
|
|
3163 | |
2480 | #if EV_USE_INOTIFY |
3164 | #if EV_USE_INOTIFY |
2481 | infy_del (EV_A_ w); |
3165 | infy_del (EV_A_ w); |
2482 | #endif |
3166 | #endif |
2483 | ev_timer_stop (EV_A_ &w->timer); |
3167 | ev_timer_stop (EV_A_ &w->timer); |
2484 | |
3168 | |
2485 | ev_stop (EV_A_ (W)w); |
3169 | ev_stop (EV_A_ (W)w); |
|
|
3170 | |
|
|
3171 | EV_FREQUENT_CHECK; |
2486 | } |
3172 | } |
2487 | #endif |
3173 | #endif |
2488 | |
3174 | |
2489 | #if EV_IDLE_ENABLE |
3175 | #if EV_IDLE_ENABLE |
2490 | void |
3176 | void |
… | |
… | |
2492 | { |
3178 | { |
2493 | if (expect_false (ev_is_active (w))) |
3179 | if (expect_false (ev_is_active (w))) |
2494 | return; |
3180 | return; |
2495 | |
3181 | |
2496 | pri_adjust (EV_A_ (W)w); |
3182 | pri_adjust (EV_A_ (W)w); |
|
|
3183 | |
|
|
3184 | EV_FREQUENT_CHECK; |
2497 | |
3185 | |
2498 | { |
3186 | { |
2499 | int active = ++idlecnt [ABSPRI (w)]; |
3187 | int active = ++idlecnt [ABSPRI (w)]; |
2500 | |
3188 | |
2501 | ++idleall; |
3189 | ++idleall; |
2502 | ev_start (EV_A_ (W)w, active); |
3190 | ev_start (EV_A_ (W)w, active); |
2503 | |
3191 | |
2504 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3192 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2505 | idles [ABSPRI (w)][active - 1] = w; |
3193 | idles [ABSPRI (w)][active - 1] = w; |
2506 | } |
3194 | } |
|
|
3195 | |
|
|
3196 | EV_FREQUENT_CHECK; |
2507 | } |
3197 | } |
2508 | |
3198 | |
2509 | void |
3199 | void |
2510 | ev_idle_stop (EV_P_ ev_idle *w) |
3200 | ev_idle_stop (EV_P_ ev_idle *w) |
2511 | { |
3201 | { |
2512 | clear_pending (EV_A_ (W)w); |
3202 | clear_pending (EV_A_ (W)w); |
2513 | if (expect_false (!ev_is_active (w))) |
3203 | if (expect_false (!ev_is_active (w))) |
2514 | return; |
3204 | return; |
2515 | |
3205 | |
|
|
3206 | EV_FREQUENT_CHECK; |
|
|
3207 | |
2516 | { |
3208 | { |
2517 | int active = ev_active (w); |
3209 | int active = ev_active (w); |
2518 | |
3210 | |
2519 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3211 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2520 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
3212 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2521 | |
3213 | |
2522 | ev_stop (EV_A_ (W)w); |
3214 | ev_stop (EV_A_ (W)w); |
2523 | --idleall; |
3215 | --idleall; |
2524 | } |
3216 | } |
|
|
3217 | |
|
|
3218 | EV_FREQUENT_CHECK; |
2525 | } |
3219 | } |
2526 | #endif |
3220 | #endif |
2527 | |
3221 | |
2528 | void |
3222 | void |
2529 | ev_prepare_start (EV_P_ ev_prepare *w) |
3223 | ev_prepare_start (EV_P_ ev_prepare *w) |
2530 | { |
3224 | { |
2531 | if (expect_false (ev_is_active (w))) |
3225 | if (expect_false (ev_is_active (w))) |
2532 | return; |
3226 | return; |
|
|
3227 | |
|
|
3228 | EV_FREQUENT_CHECK; |
2533 | |
3229 | |
2534 | ev_start (EV_A_ (W)w, ++preparecnt); |
3230 | ev_start (EV_A_ (W)w, ++preparecnt); |
2535 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3231 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2536 | prepares [preparecnt - 1] = w; |
3232 | prepares [preparecnt - 1] = w; |
|
|
3233 | |
|
|
3234 | EV_FREQUENT_CHECK; |
2537 | } |
3235 | } |
2538 | |
3236 | |
2539 | void |
3237 | void |
2540 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3238 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2541 | { |
3239 | { |
2542 | clear_pending (EV_A_ (W)w); |
3240 | clear_pending (EV_A_ (W)w); |
2543 | if (expect_false (!ev_is_active (w))) |
3241 | if (expect_false (!ev_is_active (w))) |
2544 | return; |
3242 | return; |
2545 | |
3243 | |
|
|
3244 | EV_FREQUENT_CHECK; |
|
|
3245 | |
2546 | { |
3246 | { |
2547 | int active = ev_active (w); |
3247 | int active = ev_active (w); |
2548 | |
3248 | |
2549 | prepares [active - 1] = prepares [--preparecnt]; |
3249 | prepares [active - 1] = prepares [--preparecnt]; |
2550 | ev_active (prepares [active - 1]) = active; |
3250 | ev_active (prepares [active - 1]) = active; |
2551 | } |
3251 | } |
2552 | |
3252 | |
2553 | ev_stop (EV_A_ (W)w); |
3253 | ev_stop (EV_A_ (W)w); |
|
|
3254 | |
|
|
3255 | EV_FREQUENT_CHECK; |
2554 | } |
3256 | } |
2555 | |
3257 | |
2556 | void |
3258 | void |
2557 | ev_check_start (EV_P_ ev_check *w) |
3259 | ev_check_start (EV_P_ ev_check *w) |
2558 | { |
3260 | { |
2559 | if (expect_false (ev_is_active (w))) |
3261 | if (expect_false (ev_is_active (w))) |
2560 | return; |
3262 | return; |
|
|
3263 | |
|
|
3264 | EV_FREQUENT_CHECK; |
2561 | |
3265 | |
2562 | ev_start (EV_A_ (W)w, ++checkcnt); |
3266 | ev_start (EV_A_ (W)w, ++checkcnt); |
2563 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3267 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2564 | checks [checkcnt - 1] = w; |
3268 | checks [checkcnt - 1] = w; |
|
|
3269 | |
|
|
3270 | EV_FREQUENT_CHECK; |
2565 | } |
3271 | } |
2566 | |
3272 | |
2567 | void |
3273 | void |
2568 | ev_check_stop (EV_P_ ev_check *w) |
3274 | ev_check_stop (EV_P_ ev_check *w) |
2569 | { |
3275 | { |
2570 | clear_pending (EV_A_ (W)w); |
3276 | clear_pending (EV_A_ (W)w); |
2571 | if (expect_false (!ev_is_active (w))) |
3277 | if (expect_false (!ev_is_active (w))) |
2572 | return; |
3278 | return; |
2573 | |
3279 | |
|
|
3280 | EV_FREQUENT_CHECK; |
|
|
3281 | |
2574 | { |
3282 | { |
2575 | int active = ev_active (w); |
3283 | int active = ev_active (w); |
2576 | |
3284 | |
2577 | checks [active - 1] = checks [--checkcnt]; |
3285 | checks [active - 1] = checks [--checkcnt]; |
2578 | ev_active (checks [active - 1]) = active; |
3286 | ev_active (checks [active - 1]) = active; |
2579 | } |
3287 | } |
2580 | |
3288 | |
2581 | ev_stop (EV_A_ (W)w); |
3289 | ev_stop (EV_A_ (W)w); |
|
|
3290 | |
|
|
3291 | EV_FREQUENT_CHECK; |
2582 | } |
3292 | } |
2583 | |
3293 | |
2584 | #if EV_EMBED_ENABLE |
3294 | #if EV_EMBED_ENABLE |
2585 | void noinline |
3295 | void noinline |
2586 | ev_embed_sweep (EV_P_ ev_embed *w) |
3296 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2603 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3313 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2604 | { |
3314 | { |
2605 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3315 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2606 | |
3316 | |
2607 | { |
3317 | { |
2608 | struct ev_loop *loop = w->other; |
3318 | EV_P = w->other; |
2609 | |
3319 | |
2610 | while (fdchangecnt) |
3320 | while (fdchangecnt) |
2611 | { |
3321 | { |
2612 | fd_reify (EV_A); |
3322 | fd_reify (EV_A); |
2613 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3323 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2614 | } |
3324 | } |
2615 | } |
3325 | } |
2616 | } |
3326 | } |
2617 | |
3327 | |
|
|
3328 | static void |
|
|
3329 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3330 | { |
|
|
3331 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3332 | |
|
|
3333 | ev_embed_stop (EV_A_ w); |
|
|
3334 | |
|
|
3335 | { |
|
|
3336 | EV_P = w->other; |
|
|
3337 | |
|
|
3338 | ev_loop_fork (EV_A); |
|
|
3339 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3340 | } |
|
|
3341 | |
|
|
3342 | ev_embed_start (EV_A_ w); |
|
|
3343 | } |
|
|
3344 | |
2618 | #if 0 |
3345 | #if 0 |
2619 | static void |
3346 | static void |
2620 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3347 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2621 | { |
3348 | { |
2622 | ev_idle_stop (EV_A_ idle); |
3349 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2628 | { |
3355 | { |
2629 | if (expect_false (ev_is_active (w))) |
3356 | if (expect_false (ev_is_active (w))) |
2630 | return; |
3357 | return; |
2631 | |
3358 | |
2632 | { |
3359 | { |
2633 | struct ev_loop *loop = w->other; |
3360 | EV_P = w->other; |
2634 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3361 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2635 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3362 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2636 | } |
3363 | } |
|
|
3364 | |
|
|
3365 | EV_FREQUENT_CHECK; |
2637 | |
3366 | |
2638 | ev_set_priority (&w->io, ev_priority (w)); |
3367 | ev_set_priority (&w->io, ev_priority (w)); |
2639 | ev_io_start (EV_A_ &w->io); |
3368 | ev_io_start (EV_A_ &w->io); |
2640 | |
3369 | |
2641 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3370 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2642 | ev_set_priority (&w->prepare, EV_MINPRI); |
3371 | ev_set_priority (&w->prepare, EV_MINPRI); |
2643 | ev_prepare_start (EV_A_ &w->prepare); |
3372 | ev_prepare_start (EV_A_ &w->prepare); |
2644 | |
3373 | |
|
|
3374 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3375 | ev_fork_start (EV_A_ &w->fork); |
|
|
3376 | |
2645 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3377 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2646 | |
3378 | |
2647 | ev_start (EV_A_ (W)w, 1); |
3379 | ev_start (EV_A_ (W)w, 1); |
|
|
3380 | |
|
|
3381 | EV_FREQUENT_CHECK; |
2648 | } |
3382 | } |
2649 | |
3383 | |
2650 | void |
3384 | void |
2651 | ev_embed_stop (EV_P_ ev_embed *w) |
3385 | ev_embed_stop (EV_P_ ev_embed *w) |
2652 | { |
3386 | { |
2653 | clear_pending (EV_A_ (W)w); |
3387 | clear_pending (EV_A_ (W)w); |
2654 | if (expect_false (!ev_is_active (w))) |
3388 | if (expect_false (!ev_is_active (w))) |
2655 | return; |
3389 | return; |
2656 | |
3390 | |
|
|
3391 | EV_FREQUENT_CHECK; |
|
|
3392 | |
2657 | ev_io_stop (EV_A_ &w->io); |
3393 | ev_io_stop (EV_A_ &w->io); |
2658 | ev_prepare_stop (EV_A_ &w->prepare); |
3394 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3395 | ev_fork_stop (EV_A_ &w->fork); |
2659 | |
3396 | |
2660 | ev_stop (EV_A_ (W)w); |
3397 | EV_FREQUENT_CHECK; |
2661 | } |
3398 | } |
2662 | #endif |
3399 | #endif |
2663 | |
3400 | |
2664 | #if EV_FORK_ENABLE |
3401 | #if EV_FORK_ENABLE |
2665 | void |
3402 | void |
2666 | ev_fork_start (EV_P_ ev_fork *w) |
3403 | ev_fork_start (EV_P_ ev_fork *w) |
2667 | { |
3404 | { |
2668 | if (expect_false (ev_is_active (w))) |
3405 | if (expect_false (ev_is_active (w))) |
2669 | return; |
3406 | return; |
|
|
3407 | |
|
|
3408 | EV_FREQUENT_CHECK; |
2670 | |
3409 | |
2671 | ev_start (EV_A_ (W)w, ++forkcnt); |
3410 | ev_start (EV_A_ (W)w, ++forkcnt); |
2672 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3411 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2673 | forks [forkcnt - 1] = w; |
3412 | forks [forkcnt - 1] = w; |
|
|
3413 | |
|
|
3414 | EV_FREQUENT_CHECK; |
2674 | } |
3415 | } |
2675 | |
3416 | |
2676 | void |
3417 | void |
2677 | ev_fork_stop (EV_P_ ev_fork *w) |
3418 | ev_fork_stop (EV_P_ ev_fork *w) |
2678 | { |
3419 | { |
2679 | clear_pending (EV_A_ (W)w); |
3420 | clear_pending (EV_A_ (W)w); |
2680 | if (expect_false (!ev_is_active (w))) |
3421 | if (expect_false (!ev_is_active (w))) |
2681 | return; |
3422 | return; |
2682 | |
3423 | |
|
|
3424 | EV_FREQUENT_CHECK; |
|
|
3425 | |
2683 | { |
3426 | { |
2684 | int active = ev_active (w); |
3427 | int active = ev_active (w); |
2685 | |
3428 | |
2686 | forks [active - 1] = forks [--forkcnt]; |
3429 | forks [active - 1] = forks [--forkcnt]; |
2687 | ev_active (forks [active - 1]) = active; |
3430 | ev_active (forks [active - 1]) = active; |
2688 | } |
3431 | } |
2689 | |
3432 | |
2690 | ev_stop (EV_A_ (W)w); |
3433 | ev_stop (EV_A_ (W)w); |
|
|
3434 | |
|
|
3435 | EV_FREQUENT_CHECK; |
2691 | } |
3436 | } |
2692 | #endif |
3437 | #endif |
2693 | |
3438 | |
2694 | #if EV_ASYNC_ENABLE |
3439 | #if EV_ASYNC_ENABLE |
2695 | void |
3440 | void |
… | |
… | |
2697 | { |
3442 | { |
2698 | if (expect_false (ev_is_active (w))) |
3443 | if (expect_false (ev_is_active (w))) |
2699 | return; |
3444 | return; |
2700 | |
3445 | |
2701 | evpipe_init (EV_A); |
3446 | evpipe_init (EV_A); |
|
|
3447 | |
|
|
3448 | EV_FREQUENT_CHECK; |
2702 | |
3449 | |
2703 | ev_start (EV_A_ (W)w, ++asynccnt); |
3450 | ev_start (EV_A_ (W)w, ++asynccnt); |
2704 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3451 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2705 | asyncs [asynccnt - 1] = w; |
3452 | asyncs [asynccnt - 1] = w; |
|
|
3453 | |
|
|
3454 | EV_FREQUENT_CHECK; |
2706 | } |
3455 | } |
2707 | |
3456 | |
2708 | void |
3457 | void |
2709 | ev_async_stop (EV_P_ ev_async *w) |
3458 | ev_async_stop (EV_P_ ev_async *w) |
2710 | { |
3459 | { |
2711 | clear_pending (EV_A_ (W)w); |
3460 | clear_pending (EV_A_ (W)w); |
2712 | if (expect_false (!ev_is_active (w))) |
3461 | if (expect_false (!ev_is_active (w))) |
2713 | return; |
3462 | return; |
2714 | |
3463 | |
|
|
3464 | EV_FREQUENT_CHECK; |
|
|
3465 | |
2715 | { |
3466 | { |
2716 | int active = ev_active (w); |
3467 | int active = ev_active (w); |
2717 | |
3468 | |
2718 | asyncs [active - 1] = asyncs [--asynccnt]; |
3469 | asyncs [active - 1] = asyncs [--asynccnt]; |
2719 | ev_active (asyncs [active - 1]) = active; |
3470 | ev_active (asyncs [active - 1]) = active; |
2720 | } |
3471 | } |
2721 | |
3472 | |
2722 | ev_stop (EV_A_ (W)w); |
3473 | ev_stop (EV_A_ (W)w); |
|
|
3474 | |
|
|
3475 | EV_FREQUENT_CHECK; |
2723 | } |
3476 | } |
2724 | |
3477 | |
2725 | void |
3478 | void |
2726 | ev_async_send (EV_P_ ev_async *w) |
3479 | ev_async_send (EV_P_ ev_async *w) |
2727 | { |
3480 | { |
2728 | w->sent = 1; |
3481 | w->sent = 1; |
2729 | evpipe_write (EV_A_ &gotasync); |
3482 | evpipe_write (EV_A_ &async_pending); |
2730 | } |
3483 | } |
2731 | #endif |
3484 | #endif |
2732 | |
3485 | |
2733 | /*****************************************************************************/ |
3486 | /*****************************************************************************/ |
2734 | |
3487 | |
… | |
… | |
2744 | once_cb (EV_P_ struct ev_once *once, int revents) |
3497 | once_cb (EV_P_ struct ev_once *once, int revents) |
2745 | { |
3498 | { |
2746 | void (*cb)(int revents, void *arg) = once->cb; |
3499 | void (*cb)(int revents, void *arg) = once->cb; |
2747 | void *arg = once->arg; |
3500 | void *arg = once->arg; |
2748 | |
3501 | |
2749 | ev_io_stop (EV_A_ &once->io); |
3502 | ev_io_stop (EV_A_ &once->io); |
2750 | ev_timer_stop (EV_A_ &once->to); |
3503 | ev_timer_stop (EV_A_ &once->to); |
2751 | ev_free (once); |
3504 | ev_free (once); |
2752 | |
3505 | |
2753 | cb (revents, arg); |
3506 | cb (revents, arg); |
2754 | } |
3507 | } |
2755 | |
3508 | |
2756 | static void |
3509 | static void |
2757 | once_cb_io (EV_P_ ev_io *w, int revents) |
3510 | once_cb_io (EV_P_ ev_io *w, int revents) |
2758 | { |
3511 | { |
2759 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3512 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3513 | |
|
|
3514 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2760 | } |
3515 | } |
2761 | |
3516 | |
2762 | static void |
3517 | static void |
2763 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3518 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2764 | { |
3519 | { |
2765 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3520 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3521 | |
|
|
3522 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2766 | } |
3523 | } |
2767 | |
3524 | |
2768 | void |
3525 | void |
2769 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3526 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2770 | { |
3527 | { |
… | |
… | |
2792 | ev_timer_set (&once->to, timeout, 0.); |
3549 | ev_timer_set (&once->to, timeout, 0.); |
2793 | ev_timer_start (EV_A_ &once->to); |
3550 | ev_timer_start (EV_A_ &once->to); |
2794 | } |
3551 | } |
2795 | } |
3552 | } |
2796 | |
3553 | |
|
|
3554 | /*****************************************************************************/ |
|
|
3555 | |
|
|
3556 | #if EV_WALK_ENABLE |
|
|
3557 | void |
|
|
3558 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3559 | { |
|
|
3560 | int i, j; |
|
|
3561 | ev_watcher_list *wl, *wn; |
|
|
3562 | |
|
|
3563 | if (types & (EV_IO | EV_EMBED)) |
|
|
3564 | for (i = 0; i < anfdmax; ++i) |
|
|
3565 | for (wl = anfds [i].head; wl; ) |
|
|
3566 | { |
|
|
3567 | wn = wl->next; |
|
|
3568 | |
|
|
3569 | #if EV_EMBED_ENABLE |
|
|
3570 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3571 | { |
|
|
3572 | if (types & EV_EMBED) |
|
|
3573 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3574 | } |
|
|
3575 | else |
|
|
3576 | #endif |
|
|
3577 | #if EV_USE_INOTIFY |
|
|
3578 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3579 | ; |
|
|
3580 | else |
|
|
3581 | #endif |
|
|
3582 | if ((ev_io *)wl != &pipe_w) |
|
|
3583 | if (types & EV_IO) |
|
|
3584 | cb (EV_A_ EV_IO, wl); |
|
|
3585 | |
|
|
3586 | wl = wn; |
|
|
3587 | } |
|
|
3588 | |
|
|
3589 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3590 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3591 | #if EV_STAT_ENABLE |
|
|
3592 | /*TODO: timer is not always active*/ |
|
|
3593 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3594 | { |
|
|
3595 | if (types & EV_STAT) |
|
|
3596 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3597 | } |
|
|
3598 | else |
|
|
3599 | #endif |
|
|
3600 | if (types & EV_TIMER) |
|
|
3601 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3602 | |
|
|
3603 | #if EV_PERIODIC_ENABLE |
|
|
3604 | if (types & EV_PERIODIC) |
|
|
3605 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3606 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3607 | #endif |
|
|
3608 | |
|
|
3609 | #if EV_IDLE_ENABLE |
|
|
3610 | if (types & EV_IDLE) |
|
|
3611 | for (j = NUMPRI; i--; ) |
|
|
3612 | for (i = idlecnt [j]; i--; ) |
|
|
3613 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3614 | #endif |
|
|
3615 | |
|
|
3616 | #if EV_FORK_ENABLE |
|
|
3617 | if (types & EV_FORK) |
|
|
3618 | for (i = forkcnt; i--; ) |
|
|
3619 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3620 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3621 | #endif |
|
|
3622 | |
|
|
3623 | #if EV_ASYNC_ENABLE |
|
|
3624 | if (types & EV_ASYNC) |
|
|
3625 | for (i = asynccnt; i--; ) |
|
|
3626 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3627 | #endif |
|
|
3628 | |
|
|
3629 | if (types & EV_PREPARE) |
|
|
3630 | for (i = preparecnt; i--; ) |
|
|
3631 | #if EV_EMBED_ENABLE |
|
|
3632 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3633 | #endif |
|
|
3634 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3635 | |
|
|
3636 | if (types & EV_CHECK) |
|
|
3637 | for (i = checkcnt; i--; ) |
|
|
3638 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3639 | |
|
|
3640 | if (types & EV_SIGNAL) |
|
|
3641 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3642 | for (wl = signals [i].head; wl; ) |
|
|
3643 | { |
|
|
3644 | wn = wl->next; |
|
|
3645 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3646 | wl = wn; |
|
|
3647 | } |
|
|
3648 | |
|
|
3649 | if (types & EV_CHILD) |
|
|
3650 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3651 | for (wl = childs [i]; wl; ) |
|
|
3652 | { |
|
|
3653 | wn = wl->next; |
|
|
3654 | cb (EV_A_ EV_CHILD, wl); |
|
|
3655 | wl = wn; |
|
|
3656 | } |
|
|
3657 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3658 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3659 | } |
|
|
3660 | #endif |
|
|
3661 | |
2797 | #if EV_MULTIPLICITY |
3662 | #if EV_MULTIPLICITY |
2798 | #include "ev_wrap.h" |
3663 | #include "ev_wrap.h" |
2799 | #endif |
3664 | #endif |
2800 | |
3665 | |
2801 | #ifdef __cplusplus |
3666 | #ifdef __cplusplus |