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 | * |
… | |
… | |
57 | # endif |
57 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
58 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
59 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
60 | # endif |
61 | # endif |
61 | # endif |
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|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
64 | # endif |
63 | |
65 | |
64 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
67 | # endif |
69 | # endif |
68 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
70 | # endif |
72 | # endif |
71 | # else |
73 | # else |
72 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
73 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
74 | # endif |
76 | # endif |
… | |
… | |
131 | # else |
133 | # else |
132 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
133 | # endif |
135 | # endif |
134 | # endif |
136 | # endif |
135 | |
137 | |
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|
138 | # ifndef EV_USE_SIGNALFD |
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|
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 |
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144 | # endif |
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|
145 | |
136 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
137 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
138 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
139 | # else |
149 | # else |
140 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
176 | # endif |
186 | # endif |
177 | #endif |
187 | #endif |
178 | |
188 | |
179 | /* 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 */ |
180 | |
190 | |
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|
191 | /* try to deduce the maximum number of signals on this platform */ |
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|
192 | #if defined (EV_NSIG) |
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|
193 | /* use what's provided */ |
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|
194 | #elif defined (NSIG) |
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|
195 | # define EV_NSIG (NSIG) |
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196 | #elif defined(_NSIG) |
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197 | # define EV_NSIG (_NSIG) |
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198 | #elif defined (SIGMAX) |
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199 | # define EV_NSIG (SIGMAX+1) |
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|
200 | #elif defined (SIG_MAX) |
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201 | # define EV_NSIG (SIG_MAX+1) |
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|
202 | #elif defined (_SIG_MAX) |
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203 | # define EV_NSIG (_SIG_MAX+1) |
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|
204 | #elif defined (MAXSIG) |
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205 | # define EV_NSIG (MAXSIG+1) |
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|
206 | #elif defined (MAX_SIG) |
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207 | # define EV_NSIG (MAX_SIG+1) |
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208 | #elif defined (SIGARRAYSIZE) |
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209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
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210 | #elif defined (_sys_nsig) |
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211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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212 | #else |
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213 | # error "unable to find value for NSIG, please report" |
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214 | /* to make it compile regardless, just remove the above line */ |
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215 | # define EV_NSIG 65 |
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216 | #endif |
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217 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
218 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
219 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
220 | # define EV_USE_CLOCK_SYSCALL 1 |
184 | # else |
221 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
222 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
193 | # define EV_USE_MONOTONIC 0 |
230 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
231 | # endif |
195 | #endif |
232 | #endif |
196 | |
233 | |
197 | #ifndef EV_USE_REALTIME |
234 | #ifndef EV_USE_REALTIME |
198 | # define EV_USE_REALTIME 0 |
235 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
236 | #endif |
200 | |
237 | |
201 | #ifndef EV_USE_NANOSLEEP |
238 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
239 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
240 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
264 | # else |
301 | # else |
265 | # define EV_USE_EVENTFD 0 |
302 | # define EV_USE_EVENTFD 0 |
266 | # endif |
303 | # endif |
267 | #endif |
304 | #endif |
268 | |
305 | |
|
|
306 | #ifndef EV_USE_SIGNALFD |
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|
307 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
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308 | # define EV_USE_SIGNALFD 1 |
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309 | # else |
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310 | # define EV_USE_SIGNALFD 0 |
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|
311 | # endif |
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|
312 | #endif |
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313 | |
269 | #if 0 /* debugging */ |
314 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
315 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
316 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
317 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
318 | #endif |
… | |
… | |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
325 | # define EV_USE_4HEAP !EV_MINIMAL |
281 | #endif |
326 | #endif |
282 | |
327 | |
283 | #ifndef EV_HEAP_CACHE_AT |
328 | #ifndef EV_HEAP_CACHE_AT |
284 | # 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 | |
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332 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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333 | /* which makes programs even slower. might work on other unices, too. */ |
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334 | #if EV_USE_CLOCK_SYSCALL |
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335 | # include <syscall.h> |
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336 | # ifdef SYS_clock_gettime |
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337 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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338 | # undef EV_USE_MONOTONIC |
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339 | # define EV_USE_MONOTONIC 1 |
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340 | # else |
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341 | # undef EV_USE_CLOCK_SYSCALL |
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342 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
343 | # endif |
285 | #endif |
344 | #endif |
286 | |
345 | |
287 | /* 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 */ |
288 | |
347 | |
289 | #ifndef CLOCK_MONOTONIC |
348 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
320 | |
379 | |
321 | #if EV_SELECT_IS_WINSOCKET |
380 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
381 | # include <winsock.h> |
323 | #endif |
382 | #endif |
324 | |
383 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
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327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
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329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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330 | # undef EV_USE_MONOTONIC |
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331 | # define EV_USE_MONOTONIC 1 |
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332 | #endif |
|
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333 | |
|
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334 | #if EV_USE_EVENTFD |
384 | #if EV_USE_EVENTFD |
335 | /* 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 */ |
336 | # include <stdint.h> |
386 | # include <stdint.h> |
|
|
387 | # ifndef EFD_NONBLOCK |
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388 | # define EFD_NONBLOCK O_NONBLOCK |
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389 | # endif |
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|
390 | # ifndef EFD_CLOEXEC |
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391 | # define EFD_CLOEXEC O_CLOEXEC |
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|
392 | # endif |
337 | # ifdef __cplusplus |
393 | # ifdef __cplusplus |
338 | extern "C" { |
394 | extern "C" { |
339 | # endif |
395 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
396 | int eventfd (unsigned int initval, int flags); |
341 | # ifdef __cplusplus |
397 | # ifdef __cplusplus |
342 | } |
398 | } |
343 | # endif |
399 | # endif |
|
|
400 | #endif |
|
|
401 | |
|
|
402 | #if EV_USE_SIGNALFD |
|
|
403 | # include <sys/signalfd.h> |
344 | #endif |
404 | #endif |
345 | |
405 | |
346 | /**/ |
406 | /**/ |
347 | |
407 | |
348 | #if EV_VERIFY >= 3 |
408 | #if EV_VERIFY >= 3 |
… | |
… | |
384 | # define inline_speed static noinline |
444 | # define inline_speed static noinline |
385 | #else |
445 | #else |
386 | # define inline_speed static inline |
446 | # define inline_speed static inline |
387 | #endif |
447 | #endif |
388 | |
448 | |
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
449 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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|
450 | |
|
|
451 | #if EV_MINPRI == EV_MAXPRI |
|
|
452 | # define ABSPRI(w) (((W)w), 0) |
|
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453 | #else |
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
454 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
455 | #endif |
391 | |
456 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
457 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
458 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
459 | |
395 | typedef ev_watcher *W; |
460 | typedef ev_watcher *W; |
… | |
… | |
397 | typedef ev_watcher_time *WT; |
462 | typedef ev_watcher_time *WT; |
398 | |
463 | |
399 | #define ev_active(w) ((W)(w))->active |
464 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
465 | #define ev_at(w) ((WT)(w))->at |
401 | |
466 | |
402 | #if EV_USE_MONOTONIC |
467 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
468 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
469 | /* giving it a reasonably high chance of working on typical architetcures */ |
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470 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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471 | #endif |
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472 | |
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473 | #if EV_USE_MONOTONIC |
405 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
474 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
406 | #endif |
475 | #endif |
407 | |
476 | |
408 | #ifdef _WIN32 |
477 | #ifdef _WIN32 |
409 | # include "ev_win32.c" |
478 | # include "ev_win32.c" |
… | |
… | |
474 | #define ev_malloc(size) ev_realloc (0, (size)) |
543 | #define ev_malloc(size) ev_realloc (0, (size)) |
475 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
544 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
476 | |
545 | |
477 | /*****************************************************************************/ |
546 | /*****************************************************************************/ |
478 | |
547 | |
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|
548 | /* set in reify when reification needed */ |
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549 | #define EV_ANFD_REIFY 1 |
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550 | |
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|
551 | /* file descriptor info structure */ |
479 | typedef struct |
552 | typedef struct |
480 | { |
553 | { |
481 | WL head; |
554 | WL head; |
482 | unsigned char events; |
555 | unsigned char events; /* the events watched for */ |
483 | unsigned char reify; |
556 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
484 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
557 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
485 | unsigned char unused; |
558 | unsigned char unused; |
486 | #if EV_USE_EPOLL |
559 | #if EV_USE_EPOLL |
487 | unsigned int egen; /* generation counter to counter epoll bugs */ |
560 | unsigned int egen; /* generation counter to counter epoll bugs */ |
488 | #endif |
561 | #endif |
489 | #if EV_SELECT_IS_WINSOCKET |
562 | #if EV_SELECT_IS_WINSOCKET |
490 | SOCKET handle; |
563 | SOCKET handle; |
491 | #endif |
564 | #endif |
492 | } ANFD; |
565 | } ANFD; |
493 | |
566 | |
|
|
567 | /* stores the pending event set for a given watcher */ |
494 | typedef struct |
568 | typedef struct |
495 | { |
569 | { |
496 | W w; |
570 | W w; |
497 | int events; |
571 | int events; /* the pending event set for the given watcher */ |
498 | } ANPENDING; |
572 | } ANPENDING; |
499 | |
573 | |
500 | #if EV_USE_INOTIFY |
574 | #if EV_USE_INOTIFY |
501 | /* hash table entry per inotify-id */ |
575 | /* hash table entry per inotify-id */ |
502 | typedef struct |
576 | typedef struct |
… | |
… | |
505 | } ANFS; |
579 | } ANFS; |
506 | #endif |
580 | #endif |
507 | |
581 | |
508 | /* Heap Entry */ |
582 | /* Heap Entry */ |
509 | #if EV_HEAP_CACHE_AT |
583 | #if EV_HEAP_CACHE_AT |
|
|
584 | /* a heap element */ |
510 | typedef struct { |
585 | typedef struct { |
511 | ev_tstamp at; |
586 | ev_tstamp at; |
512 | WT w; |
587 | WT w; |
513 | } ANHE; |
588 | } ANHE; |
514 | |
589 | |
515 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
590 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
516 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
591 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
517 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
592 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
518 | #else |
593 | #else |
|
|
594 | /* a heap element */ |
519 | typedef WT ANHE; |
595 | typedef WT ANHE; |
520 | |
596 | |
521 | #define ANHE_w(he) (he) |
597 | #define ANHE_w(he) (he) |
522 | #define ANHE_at(he) (he)->at |
598 | #define ANHE_at(he) (he)->at |
523 | #define ANHE_at_cache(he) |
599 | #define ANHE_at_cache(he) |
… | |
… | |
547 | |
623 | |
548 | static int ev_default_loop_ptr; |
624 | static int ev_default_loop_ptr; |
549 | |
625 | |
550 | #endif |
626 | #endif |
551 | |
627 | |
|
|
628 | #if EV_MINIMAL < 2 |
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629 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
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630 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
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631 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
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632 | #else |
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633 | # define EV_RELEASE_CB (void)0 |
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634 | # define EV_ACQUIRE_CB (void)0 |
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635 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
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636 | #endif |
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637 | |
|
|
638 | #define EVUNLOOP_RECURSE 0x80 |
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639 | |
552 | /*****************************************************************************/ |
640 | /*****************************************************************************/ |
553 | |
641 | |
|
|
642 | #ifndef EV_HAVE_EV_TIME |
554 | ev_tstamp |
643 | ev_tstamp |
555 | ev_time (void) |
644 | ev_time (void) |
556 | { |
645 | { |
557 | #if EV_USE_REALTIME |
646 | #if EV_USE_REALTIME |
|
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647 | if (expect_true (have_realtime)) |
|
|
648 | { |
558 | struct timespec ts; |
649 | struct timespec ts; |
559 | clock_gettime (CLOCK_REALTIME, &ts); |
650 | clock_gettime (CLOCK_REALTIME, &ts); |
560 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
651 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
561 | #else |
652 | } |
|
|
653 | #endif |
|
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654 | |
562 | struct timeval tv; |
655 | struct timeval tv; |
563 | gettimeofday (&tv, 0); |
656 | gettimeofday (&tv, 0); |
564 | return tv.tv_sec + tv.tv_usec * 1e-6; |
657 | return tv.tv_sec + tv.tv_usec * 1e-6; |
565 | #endif |
|
|
566 | } |
658 | } |
|
|
659 | #endif |
567 | |
660 | |
568 | ev_tstamp inline_size |
661 | inline_size ev_tstamp |
569 | get_clock (void) |
662 | get_clock (void) |
570 | { |
663 | { |
571 | #if EV_USE_MONOTONIC |
664 | #if EV_USE_MONOTONIC |
572 | if (expect_true (have_monotonic)) |
665 | if (expect_true (have_monotonic)) |
573 | { |
666 | { |
… | |
… | |
607 | |
700 | |
608 | tv.tv_sec = (time_t)delay; |
701 | tv.tv_sec = (time_t)delay; |
609 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
702 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
610 | |
703 | |
611 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
704 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
612 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
705 | /* something not guaranteed by newer posix versions, but guaranteed */ |
613 | /* by older ones */ |
706 | /* by older ones */ |
614 | select (0, 0, 0, 0, &tv); |
707 | select (0, 0, 0, 0, &tv); |
615 | #endif |
708 | #endif |
616 | } |
709 | } |
617 | } |
710 | } |
618 | |
711 | |
619 | /*****************************************************************************/ |
712 | /*****************************************************************************/ |
620 | |
713 | |
621 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
714 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
622 | |
715 | |
623 | int inline_size |
716 | /* find a suitable new size for the given array, */ |
|
|
717 | /* hopefully by rounding to a ncie-to-malloc size */ |
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|
718 | inline_size int |
624 | array_nextsize (int elem, int cur, int cnt) |
719 | array_nextsize (int elem, int cur, int cnt) |
625 | { |
720 | { |
626 | int ncur = cur + 1; |
721 | int ncur = cur + 1; |
627 | |
722 | |
628 | do |
723 | do |
… | |
… | |
669 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
764 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
670 | } |
765 | } |
671 | #endif |
766 | #endif |
672 | |
767 | |
673 | #define array_free(stem, idx) \ |
768 | #define array_free(stem, idx) \ |
674 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
769 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
675 | |
770 | |
676 | /*****************************************************************************/ |
771 | /*****************************************************************************/ |
|
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772 | |
|
|
773 | /* dummy callback for pending events */ |
|
|
774 | static void noinline |
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|
775 | pendingcb (EV_P_ ev_prepare *w, int revents) |
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|
776 | { |
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|
777 | } |
677 | |
778 | |
678 | void noinline |
779 | void noinline |
679 | ev_feed_event (EV_P_ void *w, int revents) |
780 | ev_feed_event (EV_P_ void *w, int revents) |
680 | { |
781 | { |
681 | W w_ = (W)w; |
782 | W w_ = (W)w; |
… | |
… | |
690 | pendings [pri][w_->pending - 1].w = w_; |
791 | pendings [pri][w_->pending - 1].w = w_; |
691 | pendings [pri][w_->pending - 1].events = revents; |
792 | pendings [pri][w_->pending - 1].events = revents; |
692 | } |
793 | } |
693 | } |
794 | } |
694 | |
795 | |
695 | void inline_speed |
796 | inline_speed void |
|
|
797 | feed_reverse (EV_P_ W w) |
|
|
798 | { |
|
|
799 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
800 | rfeeds [rfeedcnt++] = w; |
|
|
801 | } |
|
|
802 | |
|
|
803 | inline_size void |
|
|
804 | feed_reverse_done (EV_P_ int revents) |
|
|
805 | { |
|
|
806 | do |
|
|
807 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
808 | while (rfeedcnt); |
|
|
809 | } |
|
|
810 | |
|
|
811 | inline_speed void |
696 | queue_events (EV_P_ W *events, int eventcnt, int type) |
812 | queue_events (EV_P_ W *events, int eventcnt, int type) |
697 | { |
813 | { |
698 | int i; |
814 | int i; |
699 | |
815 | |
700 | for (i = 0; i < eventcnt; ++i) |
816 | for (i = 0; i < eventcnt; ++i) |
701 | ev_feed_event (EV_A_ events [i], type); |
817 | ev_feed_event (EV_A_ events [i], type); |
702 | } |
818 | } |
703 | |
819 | |
704 | /*****************************************************************************/ |
820 | /*****************************************************************************/ |
705 | |
821 | |
706 | void inline_speed |
822 | inline_speed void |
707 | fd_event (EV_P_ int fd, int revents) |
823 | fd_event_nc (EV_P_ int fd, int revents) |
708 | { |
824 | { |
709 | ANFD *anfd = anfds + fd; |
825 | ANFD *anfd = anfds + fd; |
710 | ev_io *w; |
826 | ev_io *w; |
711 | |
827 | |
712 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
828 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
716 | if (ev) |
832 | if (ev) |
717 | ev_feed_event (EV_A_ (W)w, ev); |
833 | ev_feed_event (EV_A_ (W)w, ev); |
718 | } |
834 | } |
719 | } |
835 | } |
720 | |
836 | |
|
|
837 | /* do not submit kernel events for fds that have reify set */ |
|
|
838 | /* because that means they changed while we were polling for new events */ |
|
|
839 | inline_speed void |
|
|
840 | fd_event (EV_P_ int fd, int revents) |
|
|
841 | { |
|
|
842 | ANFD *anfd = anfds + fd; |
|
|
843 | |
|
|
844 | if (expect_true (!anfd->reify)) |
|
|
845 | fd_event_nc (EV_A_ fd, revents); |
|
|
846 | } |
|
|
847 | |
721 | void |
848 | void |
722 | ev_feed_fd_event (EV_P_ int fd, int revents) |
849 | ev_feed_fd_event (EV_P_ int fd, int revents) |
723 | { |
850 | { |
724 | if (fd >= 0 && fd < anfdmax) |
851 | if (fd >= 0 && fd < anfdmax) |
725 | fd_event (EV_A_ fd, revents); |
852 | fd_event_nc (EV_A_ fd, revents); |
726 | } |
853 | } |
727 | |
854 | |
728 | void inline_size |
855 | /* make sure the external fd watch events are in-sync */ |
|
|
856 | /* with the kernel/libev internal state */ |
|
|
857 | inline_size void |
729 | fd_reify (EV_P) |
858 | fd_reify (EV_P) |
730 | { |
859 | { |
731 | int i; |
860 | int i; |
732 | |
861 | |
733 | for (i = 0; i < fdchangecnt; ++i) |
862 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
748 | #ifdef EV_FD_TO_WIN32_HANDLE |
877 | #ifdef EV_FD_TO_WIN32_HANDLE |
749 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
878 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
750 | #else |
879 | #else |
751 | anfd->handle = _get_osfhandle (fd); |
880 | anfd->handle = _get_osfhandle (fd); |
752 | #endif |
881 | #endif |
753 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
882 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
754 | } |
883 | } |
755 | #endif |
884 | #endif |
756 | |
885 | |
757 | { |
886 | { |
758 | unsigned char o_events = anfd->events; |
887 | unsigned char o_events = anfd->events; |
759 | unsigned char o_reify = anfd->reify; |
888 | unsigned char o_reify = anfd->reify; |
760 | |
889 | |
761 | anfd->reify = 0; |
890 | anfd->reify = 0; |
762 | anfd->events = events; |
891 | anfd->events = events; |
763 | |
892 | |
764 | if (o_events != events || o_reify & EV_IOFDSET) |
893 | if (o_events != events || o_reify & EV__IOFDSET) |
765 | backend_modify (EV_A_ fd, o_events, events); |
894 | backend_modify (EV_A_ fd, o_events, events); |
766 | } |
895 | } |
767 | } |
896 | } |
768 | |
897 | |
769 | fdchangecnt = 0; |
898 | fdchangecnt = 0; |
770 | } |
899 | } |
771 | |
900 | |
772 | void inline_size |
901 | /* something about the given fd changed */ |
|
|
902 | inline_size void |
773 | fd_change (EV_P_ int fd, int flags) |
903 | fd_change (EV_P_ int fd, int flags) |
774 | { |
904 | { |
775 | unsigned char reify = anfds [fd].reify; |
905 | unsigned char reify = anfds [fd].reify; |
776 | anfds [fd].reify |= flags; |
906 | anfds [fd].reify |= flags; |
777 | |
907 | |
… | |
… | |
781 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
911 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
782 | fdchanges [fdchangecnt - 1] = fd; |
912 | fdchanges [fdchangecnt - 1] = fd; |
783 | } |
913 | } |
784 | } |
914 | } |
785 | |
915 | |
786 | void inline_speed |
916 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
917 | inline_speed void |
787 | fd_kill (EV_P_ int fd) |
918 | fd_kill (EV_P_ int fd) |
788 | { |
919 | { |
789 | ev_io *w; |
920 | ev_io *w; |
790 | |
921 | |
791 | while ((w = (ev_io *)anfds [fd].head)) |
922 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
793 | ev_io_stop (EV_A_ w); |
924 | ev_io_stop (EV_A_ w); |
794 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
925 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
795 | } |
926 | } |
796 | } |
927 | } |
797 | |
928 | |
798 | int inline_size |
929 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
930 | inline_size int |
799 | fd_valid (int fd) |
931 | fd_valid (int fd) |
800 | { |
932 | { |
801 | #ifdef _WIN32 |
933 | #ifdef _WIN32 |
802 | return _get_osfhandle (fd) != -1; |
934 | return _get_osfhandle (fd) != -1; |
803 | #else |
935 | #else |
… | |
… | |
825 | |
957 | |
826 | for (fd = anfdmax; fd--; ) |
958 | for (fd = anfdmax; fd--; ) |
827 | if (anfds [fd].events) |
959 | if (anfds [fd].events) |
828 | { |
960 | { |
829 | fd_kill (EV_A_ fd); |
961 | fd_kill (EV_A_ fd); |
830 | return; |
962 | break; |
831 | } |
963 | } |
832 | } |
964 | } |
833 | |
965 | |
834 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
966 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
835 | static void noinline |
967 | static void noinline |
… | |
… | |
840 | for (fd = 0; fd < anfdmax; ++fd) |
972 | for (fd = 0; fd < anfdmax; ++fd) |
841 | if (anfds [fd].events) |
973 | if (anfds [fd].events) |
842 | { |
974 | { |
843 | anfds [fd].events = 0; |
975 | anfds [fd].events = 0; |
844 | anfds [fd].emask = 0; |
976 | anfds [fd].emask = 0; |
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
977 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
846 | } |
978 | } |
847 | } |
979 | } |
848 | |
980 | |
849 | /*****************************************************************************/ |
981 | /*****************************************************************************/ |
850 | |
982 | |
… | |
… | |
866 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
998 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
867 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
999 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
868 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1000 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
869 | |
1001 | |
870 | /* away from the root */ |
1002 | /* away from the root */ |
871 | void inline_speed |
1003 | inline_speed void |
872 | downheap (ANHE *heap, int N, int k) |
1004 | downheap (ANHE *heap, int N, int k) |
873 | { |
1005 | { |
874 | ANHE he = heap [k]; |
1006 | ANHE he = heap [k]; |
875 | ANHE *E = heap + N + HEAP0; |
1007 | ANHE *E = heap + N + HEAP0; |
876 | |
1008 | |
… | |
… | |
916 | #define HEAP0 1 |
1048 | #define HEAP0 1 |
917 | #define HPARENT(k) ((k) >> 1) |
1049 | #define HPARENT(k) ((k) >> 1) |
918 | #define UPHEAP_DONE(p,k) (!(p)) |
1050 | #define UPHEAP_DONE(p,k) (!(p)) |
919 | |
1051 | |
920 | /* away from the root */ |
1052 | /* away from the root */ |
921 | void inline_speed |
1053 | inline_speed void |
922 | downheap (ANHE *heap, int N, int k) |
1054 | downheap (ANHE *heap, int N, int k) |
923 | { |
1055 | { |
924 | ANHE he = heap [k]; |
1056 | ANHE he = heap [k]; |
925 | |
1057 | |
926 | for (;;) |
1058 | for (;;) |
927 | { |
1059 | { |
928 | int c = k << 1; |
1060 | int c = k << 1; |
929 | |
1061 | |
930 | if (c > N + HEAP0 - 1) |
1062 | if (c >= N + HEAP0) |
931 | break; |
1063 | break; |
932 | |
1064 | |
933 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1065 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
934 | ? 1 : 0; |
1066 | ? 1 : 0; |
935 | |
1067 | |
… | |
… | |
946 | ev_active (ANHE_w (he)) = k; |
1078 | ev_active (ANHE_w (he)) = k; |
947 | } |
1079 | } |
948 | #endif |
1080 | #endif |
949 | |
1081 | |
950 | /* towards the root */ |
1082 | /* towards the root */ |
951 | void inline_speed |
1083 | inline_speed void |
952 | upheap (ANHE *heap, int k) |
1084 | upheap (ANHE *heap, int k) |
953 | { |
1085 | { |
954 | ANHE he = heap [k]; |
1086 | ANHE he = heap [k]; |
955 | |
1087 | |
956 | for (;;) |
1088 | for (;;) |
… | |
… | |
967 | |
1099 | |
968 | heap [k] = he; |
1100 | heap [k] = he; |
969 | ev_active (ANHE_w (he)) = k; |
1101 | ev_active (ANHE_w (he)) = k; |
970 | } |
1102 | } |
971 | |
1103 | |
972 | void inline_size |
1104 | /* move an element suitably so it is in a correct place */ |
|
|
1105 | inline_size void |
973 | adjustheap (ANHE *heap, int N, int k) |
1106 | adjustheap (ANHE *heap, int N, int k) |
974 | { |
1107 | { |
975 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1108 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
976 | upheap (heap, k); |
1109 | upheap (heap, k); |
977 | else |
1110 | else |
978 | downheap (heap, N, k); |
1111 | downheap (heap, N, k); |
979 | } |
1112 | } |
980 | |
1113 | |
981 | /* rebuild the heap: this function is used only once and executed rarely */ |
1114 | /* rebuild the heap: this function is used only once and executed rarely */ |
982 | void inline_size |
1115 | inline_size void |
983 | reheap (ANHE *heap, int N) |
1116 | reheap (ANHE *heap, int N) |
984 | { |
1117 | { |
985 | int i; |
1118 | int i; |
986 | |
1119 | |
987 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1120 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
990 | upheap (heap, i + HEAP0); |
1123 | upheap (heap, i + HEAP0); |
991 | } |
1124 | } |
992 | |
1125 | |
993 | /*****************************************************************************/ |
1126 | /*****************************************************************************/ |
994 | |
1127 | |
|
|
1128 | /* associate signal watchers to a signal signal */ |
995 | typedef struct |
1129 | typedef struct |
996 | { |
1130 | { |
|
|
1131 | EV_ATOMIC_T pending; |
|
|
1132 | #if EV_MULTIPLICITY |
|
|
1133 | EV_P; |
|
|
1134 | #endif |
997 | WL head; |
1135 | WL head; |
998 | EV_ATOMIC_T gotsig; |
|
|
999 | } ANSIG; |
1136 | } ANSIG; |
1000 | |
1137 | |
1001 | static ANSIG *signals; |
1138 | static ANSIG signals [EV_NSIG - 1]; |
1002 | static int signalmax; |
|
|
1003 | |
|
|
1004 | static EV_ATOMIC_T gotsig; |
|
|
1005 | |
1139 | |
1006 | /*****************************************************************************/ |
1140 | /*****************************************************************************/ |
1007 | |
1141 | |
1008 | void inline_speed |
1142 | /* used to prepare libev internal fd's */ |
|
|
1143 | /* this is not fork-safe */ |
|
|
1144 | inline_speed void |
1009 | fd_intern (int fd) |
1145 | fd_intern (int fd) |
1010 | { |
1146 | { |
1011 | #ifdef _WIN32 |
1147 | #ifdef _WIN32 |
1012 | unsigned long arg = 1; |
1148 | unsigned long arg = 1; |
1013 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1149 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
1018 | } |
1154 | } |
1019 | |
1155 | |
1020 | static void noinline |
1156 | static void noinline |
1021 | evpipe_init (EV_P) |
1157 | evpipe_init (EV_P) |
1022 | { |
1158 | { |
1023 | if (!ev_is_active (&pipeev)) |
1159 | if (!ev_is_active (&pipe_w)) |
1024 | { |
1160 | { |
1025 | #if EV_USE_EVENTFD |
1161 | #if EV_USE_EVENTFD |
|
|
1162 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1163 | if (evfd < 0 && errno == EINVAL) |
1026 | if ((evfd = eventfd (0, 0)) >= 0) |
1164 | evfd = eventfd (0, 0); |
|
|
1165 | |
|
|
1166 | if (evfd >= 0) |
1027 | { |
1167 | { |
1028 | evpipe [0] = -1; |
1168 | evpipe [0] = -1; |
1029 | fd_intern (evfd); |
1169 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1030 | ev_io_set (&pipeev, evfd, EV_READ); |
1170 | ev_io_set (&pipe_w, evfd, EV_READ); |
1031 | } |
1171 | } |
1032 | else |
1172 | else |
1033 | #endif |
1173 | #endif |
1034 | { |
1174 | { |
1035 | while (pipe (evpipe)) |
1175 | while (pipe (evpipe)) |
1036 | ev_syserr ("(libev) error creating signal/async pipe"); |
1176 | ev_syserr ("(libev) error creating signal/async pipe"); |
1037 | |
1177 | |
1038 | fd_intern (evpipe [0]); |
1178 | fd_intern (evpipe [0]); |
1039 | fd_intern (evpipe [1]); |
1179 | fd_intern (evpipe [1]); |
1040 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1180 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1041 | } |
1181 | } |
1042 | |
1182 | |
1043 | ev_io_start (EV_A_ &pipeev); |
1183 | ev_io_start (EV_A_ &pipe_w); |
1044 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1184 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1045 | } |
1185 | } |
1046 | } |
1186 | } |
1047 | |
1187 | |
1048 | void inline_size |
1188 | inline_size void |
1049 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1189 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1050 | { |
1190 | { |
1051 | if (!*flag) |
1191 | if (!*flag) |
1052 | { |
1192 | { |
1053 | int old_errno = errno; /* save errno because write might clobber it */ |
1193 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1066 | |
1206 | |
1067 | errno = old_errno; |
1207 | errno = old_errno; |
1068 | } |
1208 | } |
1069 | } |
1209 | } |
1070 | |
1210 | |
|
|
1211 | /* called whenever the libev signal pipe */ |
|
|
1212 | /* got some events (signal, async) */ |
1071 | static void |
1213 | static void |
1072 | pipecb (EV_P_ ev_io *iow, int revents) |
1214 | pipecb (EV_P_ ev_io *iow, int revents) |
1073 | { |
1215 | { |
|
|
1216 | int i; |
|
|
1217 | |
1074 | #if EV_USE_EVENTFD |
1218 | #if EV_USE_EVENTFD |
1075 | if (evfd >= 0) |
1219 | if (evfd >= 0) |
1076 | { |
1220 | { |
1077 | uint64_t counter; |
1221 | uint64_t counter; |
1078 | read (evfd, &counter, sizeof (uint64_t)); |
1222 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1082 | { |
1226 | { |
1083 | char dummy; |
1227 | char dummy; |
1084 | read (evpipe [0], &dummy, 1); |
1228 | read (evpipe [0], &dummy, 1); |
1085 | } |
1229 | } |
1086 | |
1230 | |
1087 | if (gotsig && ev_is_default_loop (EV_A)) |
1231 | if (sig_pending) |
1088 | { |
1232 | { |
1089 | int signum; |
1233 | sig_pending = 0; |
1090 | gotsig = 0; |
|
|
1091 | |
1234 | |
1092 | for (signum = signalmax; signum--; ) |
1235 | for (i = EV_NSIG - 1; i--; ) |
1093 | if (signals [signum].gotsig) |
1236 | if (expect_false (signals [i].pending)) |
1094 | ev_feed_signal_event (EV_A_ signum + 1); |
1237 | ev_feed_signal_event (EV_A_ i + 1); |
1095 | } |
1238 | } |
1096 | |
1239 | |
1097 | #if EV_ASYNC_ENABLE |
1240 | #if EV_ASYNC_ENABLE |
1098 | if (gotasync) |
1241 | if (async_pending) |
1099 | { |
1242 | { |
1100 | int i; |
1243 | async_pending = 0; |
1101 | gotasync = 0; |
|
|
1102 | |
1244 | |
1103 | for (i = asynccnt; i--; ) |
1245 | for (i = asynccnt; i--; ) |
1104 | if (asyncs [i]->sent) |
1246 | if (asyncs [i]->sent) |
1105 | { |
1247 | { |
1106 | asyncs [i]->sent = 0; |
1248 | asyncs [i]->sent = 0; |
… | |
… | |
1114 | |
1256 | |
1115 | static void |
1257 | static void |
1116 | ev_sighandler (int signum) |
1258 | ev_sighandler (int signum) |
1117 | { |
1259 | { |
1118 | #if EV_MULTIPLICITY |
1260 | #if EV_MULTIPLICITY |
1119 | struct ev_loop *loop = &default_loop_struct; |
1261 | EV_P = signals [signum - 1].loop; |
1120 | #endif |
1262 | #endif |
1121 | |
1263 | |
1122 | #if _WIN32 |
1264 | #if _WIN32 |
1123 | signal (signum, ev_sighandler); |
1265 | signal (signum, ev_sighandler); |
1124 | #endif |
1266 | #endif |
1125 | |
1267 | |
1126 | signals [signum - 1].gotsig = 1; |
1268 | signals [signum - 1].pending = 1; |
1127 | evpipe_write (EV_A_ &gotsig); |
1269 | evpipe_write (EV_A_ &sig_pending); |
1128 | } |
1270 | } |
1129 | |
1271 | |
1130 | void noinline |
1272 | void noinline |
1131 | ev_feed_signal_event (EV_P_ int signum) |
1273 | ev_feed_signal_event (EV_P_ int signum) |
1132 | { |
1274 | { |
1133 | WL w; |
1275 | WL w; |
1134 | |
1276 | |
|
|
1277 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1278 | return; |
|
|
1279 | |
|
|
1280 | --signum; |
|
|
1281 | |
1135 | #if EV_MULTIPLICITY |
1282 | #if EV_MULTIPLICITY |
1136 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1283 | /* it is permissible to try to feed a signal to the wrong loop */ |
1137 | #endif |
1284 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1138 | |
1285 | |
1139 | --signum; |
1286 | if (expect_false (signals [signum].loop != EV_A)) |
1140 | |
|
|
1141 | if (signum < 0 || signum >= signalmax) |
|
|
1142 | return; |
1287 | return; |
|
|
1288 | #endif |
1143 | |
1289 | |
1144 | signals [signum].gotsig = 0; |
1290 | signals [signum].pending = 0; |
1145 | |
1291 | |
1146 | for (w = signals [signum].head; w; w = w->next) |
1292 | for (w = signals [signum].head; w; w = w->next) |
1147 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1293 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1148 | } |
1294 | } |
1149 | |
1295 | |
|
|
1296 | #if EV_USE_SIGNALFD |
|
|
1297 | static void |
|
|
1298 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1299 | { |
|
|
1300 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1301 | |
|
|
1302 | for (;;) |
|
|
1303 | { |
|
|
1304 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1305 | |
|
|
1306 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1307 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1308 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1309 | |
|
|
1310 | if (res < (ssize_t)sizeof (si)) |
|
|
1311 | break; |
|
|
1312 | } |
|
|
1313 | } |
|
|
1314 | #endif |
|
|
1315 | |
1150 | /*****************************************************************************/ |
1316 | /*****************************************************************************/ |
1151 | |
1317 | |
1152 | static WL childs [EV_PID_HASHSIZE]; |
1318 | static WL childs [EV_PID_HASHSIZE]; |
1153 | |
1319 | |
1154 | #ifndef _WIN32 |
1320 | #ifndef _WIN32 |
… | |
… | |
1157 | |
1323 | |
1158 | #ifndef WIFCONTINUED |
1324 | #ifndef WIFCONTINUED |
1159 | # define WIFCONTINUED(status) 0 |
1325 | # define WIFCONTINUED(status) 0 |
1160 | #endif |
1326 | #endif |
1161 | |
1327 | |
1162 | void inline_speed |
1328 | /* handle a single child status event */ |
|
|
1329 | inline_speed void |
1163 | child_reap (EV_P_ int chain, int pid, int status) |
1330 | child_reap (EV_P_ int chain, int pid, int status) |
1164 | { |
1331 | { |
1165 | ev_child *w; |
1332 | ev_child *w; |
1166 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1333 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1167 | |
1334 | |
… | |
… | |
1180 | |
1347 | |
1181 | #ifndef WCONTINUED |
1348 | #ifndef WCONTINUED |
1182 | # define WCONTINUED 0 |
1349 | # define WCONTINUED 0 |
1183 | #endif |
1350 | #endif |
1184 | |
1351 | |
|
|
1352 | /* called on sigchld etc., calls waitpid */ |
1185 | static void |
1353 | static void |
1186 | childcb (EV_P_ ev_signal *sw, int revents) |
1354 | childcb (EV_P_ ev_signal *sw, int revents) |
1187 | { |
1355 | { |
1188 | int pid, status; |
1356 | int pid, status; |
1189 | |
1357 | |
… | |
… | |
1270 | /* kqueue is borked on everything but netbsd apparently */ |
1438 | /* kqueue is borked on everything but netbsd apparently */ |
1271 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1439 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1272 | flags &= ~EVBACKEND_KQUEUE; |
1440 | flags &= ~EVBACKEND_KQUEUE; |
1273 | #endif |
1441 | #endif |
1274 | #ifdef __APPLE__ |
1442 | #ifdef __APPLE__ |
1275 | // flags &= ~EVBACKEND_KQUEUE & ~EVBACKEND_POLL; for documentation |
1443 | /* only select works correctly on that "unix-certified" platform */ |
1276 | flags &= ~EVBACKEND_SELECT; |
1444 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1445 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1277 | #endif |
1446 | #endif |
1278 | |
1447 | |
1279 | return flags; |
1448 | return flags; |
1280 | } |
1449 | } |
1281 | |
1450 | |
… | |
… | |
1295 | ev_backend (EV_P) |
1464 | ev_backend (EV_P) |
1296 | { |
1465 | { |
1297 | return backend; |
1466 | return backend; |
1298 | } |
1467 | } |
1299 | |
1468 | |
|
|
1469 | #if EV_MINIMAL < 2 |
1300 | unsigned int |
1470 | unsigned int |
1301 | ev_loop_count (EV_P) |
1471 | ev_loop_count (EV_P) |
1302 | { |
1472 | { |
1303 | return loop_count; |
1473 | return loop_count; |
1304 | } |
1474 | } |
1305 | |
1475 | |
|
|
1476 | unsigned int |
|
|
1477 | ev_loop_depth (EV_P) |
|
|
1478 | { |
|
|
1479 | return loop_depth; |
|
|
1480 | } |
|
|
1481 | |
1306 | void |
1482 | void |
1307 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1483 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1308 | { |
1484 | { |
1309 | io_blocktime = interval; |
1485 | io_blocktime = interval; |
1310 | } |
1486 | } |
… | |
… | |
1313 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1489 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1314 | { |
1490 | { |
1315 | timeout_blocktime = interval; |
1491 | timeout_blocktime = interval; |
1316 | } |
1492 | } |
1317 | |
1493 | |
|
|
1494 | void |
|
|
1495 | ev_set_userdata (EV_P_ void *data) |
|
|
1496 | { |
|
|
1497 | userdata = data; |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | void * |
|
|
1501 | ev_userdata (EV_P) |
|
|
1502 | { |
|
|
1503 | return userdata; |
|
|
1504 | } |
|
|
1505 | |
|
|
1506 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1507 | { |
|
|
1508 | invoke_cb = invoke_pending_cb; |
|
|
1509 | } |
|
|
1510 | |
|
|
1511 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1512 | { |
|
|
1513 | release_cb = release; |
|
|
1514 | acquire_cb = acquire; |
|
|
1515 | } |
|
|
1516 | #endif |
|
|
1517 | |
|
|
1518 | /* initialise a loop structure, must be zero-initialised */ |
1318 | static void noinline |
1519 | static void noinline |
1319 | loop_init (EV_P_ unsigned int flags) |
1520 | loop_init (EV_P_ unsigned int flags) |
1320 | { |
1521 | { |
1321 | if (!backend) |
1522 | if (!backend) |
1322 | { |
1523 | { |
|
|
1524 | #if EV_USE_REALTIME |
|
|
1525 | if (!have_realtime) |
|
|
1526 | { |
|
|
1527 | struct timespec ts; |
|
|
1528 | |
|
|
1529 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1530 | have_realtime = 1; |
|
|
1531 | } |
|
|
1532 | #endif |
|
|
1533 | |
1323 | #if EV_USE_MONOTONIC |
1534 | #if EV_USE_MONOTONIC |
|
|
1535 | if (!have_monotonic) |
1324 | { |
1536 | { |
1325 | struct timespec ts; |
1537 | struct timespec ts; |
|
|
1538 | |
1326 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1539 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1327 | have_monotonic = 1; |
1540 | have_monotonic = 1; |
1328 | } |
1541 | } |
1329 | #endif |
1542 | #endif |
|
|
1543 | |
|
|
1544 | /* pid check not overridable via env */ |
|
|
1545 | #ifndef _WIN32 |
|
|
1546 | if (flags & EVFLAG_FORKCHECK) |
|
|
1547 | curpid = getpid (); |
|
|
1548 | #endif |
|
|
1549 | |
|
|
1550 | if (!(flags & EVFLAG_NOENV) |
|
|
1551 | && !enable_secure () |
|
|
1552 | && getenv ("LIBEV_FLAGS")) |
|
|
1553 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1330 | |
1554 | |
1331 | ev_rt_now = ev_time (); |
1555 | ev_rt_now = ev_time (); |
1332 | mn_now = get_clock (); |
1556 | mn_now = get_clock (); |
1333 | now_floor = mn_now; |
1557 | now_floor = mn_now; |
1334 | rtmn_diff = ev_rt_now - mn_now; |
1558 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1559 | #if EV_MINIMAL < 2 |
|
|
1560 | invoke_cb = ev_invoke_pending; |
|
|
1561 | #endif |
1335 | |
1562 | |
1336 | io_blocktime = 0.; |
1563 | io_blocktime = 0.; |
1337 | timeout_blocktime = 0.; |
1564 | timeout_blocktime = 0.; |
1338 | backend = 0; |
1565 | backend = 0; |
1339 | backend_fd = -1; |
1566 | backend_fd = -1; |
1340 | gotasync = 0; |
1567 | sig_pending = 0; |
|
|
1568 | #if EV_ASYNC_ENABLE |
|
|
1569 | async_pending = 0; |
|
|
1570 | #endif |
1341 | #if EV_USE_INOTIFY |
1571 | #if EV_USE_INOTIFY |
1342 | fs_fd = -2; |
1572 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1343 | #endif |
1573 | #endif |
1344 | |
1574 | #if EV_USE_SIGNALFD |
1345 | /* pid check not overridable via env */ |
1575 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1346 | #ifndef _WIN32 |
|
|
1347 | if (flags & EVFLAG_FORKCHECK) |
|
|
1348 | curpid = getpid (); |
|
|
1349 | #endif |
1576 | #endif |
1350 | |
|
|
1351 | if (!(flags & EVFLAG_NOENV) |
|
|
1352 | && !enable_secure () |
|
|
1353 | && getenv ("LIBEV_FLAGS")) |
|
|
1354 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1355 | |
1577 | |
1356 | if (!(flags & 0x0000ffffU)) |
1578 | if (!(flags & 0x0000ffffU)) |
1357 | flags |= ev_recommended_backends (); |
1579 | flags |= ev_recommended_backends (); |
1358 | |
1580 | |
1359 | #if EV_USE_PORT |
1581 | #if EV_USE_PORT |
… | |
… | |
1370 | #endif |
1592 | #endif |
1371 | #if EV_USE_SELECT |
1593 | #if EV_USE_SELECT |
1372 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1594 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1373 | #endif |
1595 | #endif |
1374 | |
1596 | |
|
|
1597 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1598 | |
1375 | ev_init (&pipeev, pipecb); |
1599 | ev_init (&pipe_w, pipecb); |
1376 | ev_set_priority (&pipeev, EV_MAXPRI); |
1600 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1377 | } |
1601 | } |
1378 | } |
1602 | } |
1379 | |
1603 | |
|
|
1604 | /* free up a loop structure */ |
1380 | static void noinline |
1605 | static void noinline |
1381 | loop_destroy (EV_P) |
1606 | loop_destroy (EV_P) |
1382 | { |
1607 | { |
1383 | int i; |
1608 | int i; |
1384 | |
1609 | |
1385 | if (ev_is_active (&pipeev)) |
1610 | if (ev_is_active (&pipe_w)) |
1386 | { |
1611 | { |
1387 | ev_ref (EV_A); /* signal watcher */ |
1612 | /*ev_ref (EV_A);*/ |
1388 | ev_io_stop (EV_A_ &pipeev); |
1613 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1389 | |
1614 | |
1390 | #if EV_USE_EVENTFD |
1615 | #if EV_USE_EVENTFD |
1391 | if (evfd >= 0) |
1616 | if (evfd >= 0) |
1392 | close (evfd); |
1617 | close (evfd); |
1393 | #endif |
1618 | #endif |
… | |
… | |
1397 | close (evpipe [0]); |
1622 | close (evpipe [0]); |
1398 | close (evpipe [1]); |
1623 | close (evpipe [1]); |
1399 | } |
1624 | } |
1400 | } |
1625 | } |
1401 | |
1626 | |
|
|
1627 | #if EV_USE_SIGNALFD |
|
|
1628 | if (ev_is_active (&sigfd_w)) |
|
|
1629 | { |
|
|
1630 | /*ev_ref (EV_A);*/ |
|
|
1631 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1632 | |
|
|
1633 | close (sigfd); |
|
|
1634 | } |
|
|
1635 | #endif |
|
|
1636 | |
1402 | #if EV_USE_INOTIFY |
1637 | #if EV_USE_INOTIFY |
1403 | if (fs_fd >= 0) |
1638 | if (fs_fd >= 0) |
1404 | close (fs_fd); |
1639 | close (fs_fd); |
1405 | #endif |
1640 | #endif |
1406 | |
1641 | |
… | |
… | |
1429 | #if EV_IDLE_ENABLE |
1664 | #if EV_IDLE_ENABLE |
1430 | array_free (idle, [i]); |
1665 | array_free (idle, [i]); |
1431 | #endif |
1666 | #endif |
1432 | } |
1667 | } |
1433 | |
1668 | |
1434 | ev_free (anfds); anfdmax = 0; |
1669 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1435 | |
1670 | |
1436 | /* have to use the microsoft-never-gets-it-right macro */ |
1671 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1672 | array_free (rfeed, EMPTY); |
1437 | array_free (fdchange, EMPTY); |
1673 | array_free (fdchange, EMPTY); |
1438 | array_free (timer, EMPTY); |
1674 | array_free (timer, EMPTY); |
1439 | #if EV_PERIODIC_ENABLE |
1675 | #if EV_PERIODIC_ENABLE |
1440 | array_free (periodic, EMPTY); |
1676 | array_free (periodic, EMPTY); |
1441 | #endif |
1677 | #endif |
… | |
… | |
1450 | |
1686 | |
1451 | backend = 0; |
1687 | backend = 0; |
1452 | } |
1688 | } |
1453 | |
1689 | |
1454 | #if EV_USE_INOTIFY |
1690 | #if EV_USE_INOTIFY |
1455 | void inline_size infy_fork (EV_P); |
1691 | inline_size void infy_fork (EV_P); |
1456 | #endif |
1692 | #endif |
1457 | |
1693 | |
1458 | void inline_size |
1694 | inline_size void |
1459 | loop_fork (EV_P) |
1695 | loop_fork (EV_P) |
1460 | { |
1696 | { |
1461 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
1462 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1698 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1463 | #endif |
1699 | #endif |
… | |
… | |
1469 | #endif |
1705 | #endif |
1470 | #if EV_USE_INOTIFY |
1706 | #if EV_USE_INOTIFY |
1471 | infy_fork (EV_A); |
1707 | infy_fork (EV_A); |
1472 | #endif |
1708 | #endif |
1473 | |
1709 | |
1474 | if (ev_is_active (&pipeev)) |
1710 | if (ev_is_active (&pipe_w)) |
1475 | { |
1711 | { |
1476 | /* this "locks" the handlers against writing to the pipe */ |
1712 | /* this "locks" the handlers against writing to the pipe */ |
1477 | /* while we modify the fd vars */ |
1713 | /* while we modify the fd vars */ |
1478 | gotsig = 1; |
1714 | sig_pending = 1; |
1479 | #if EV_ASYNC_ENABLE |
1715 | #if EV_ASYNC_ENABLE |
1480 | gotasync = 1; |
1716 | async_pending = 1; |
1481 | #endif |
1717 | #endif |
1482 | |
1718 | |
1483 | ev_ref (EV_A); |
1719 | ev_ref (EV_A); |
1484 | ev_io_stop (EV_A_ &pipeev); |
1720 | ev_io_stop (EV_A_ &pipe_w); |
1485 | |
1721 | |
1486 | #if EV_USE_EVENTFD |
1722 | #if EV_USE_EVENTFD |
1487 | if (evfd >= 0) |
1723 | if (evfd >= 0) |
1488 | close (evfd); |
1724 | close (evfd); |
1489 | #endif |
1725 | #endif |
… | |
… | |
1494 | close (evpipe [1]); |
1730 | close (evpipe [1]); |
1495 | } |
1731 | } |
1496 | |
1732 | |
1497 | evpipe_init (EV_A); |
1733 | evpipe_init (EV_A); |
1498 | /* now iterate over everything, in case we missed something */ |
1734 | /* now iterate over everything, in case we missed something */ |
1499 | pipecb (EV_A_ &pipeev, EV_READ); |
1735 | pipecb (EV_A_ &pipe_w, EV_READ); |
1500 | } |
1736 | } |
1501 | |
1737 | |
1502 | postfork = 0; |
1738 | postfork = 0; |
1503 | } |
1739 | } |
1504 | |
1740 | |
1505 | #if EV_MULTIPLICITY |
1741 | #if EV_MULTIPLICITY |
1506 | |
1742 | |
1507 | struct ev_loop * |
1743 | struct ev_loop * |
1508 | ev_loop_new (unsigned int flags) |
1744 | ev_loop_new (unsigned int flags) |
1509 | { |
1745 | { |
1510 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1746 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1511 | |
1747 | |
1512 | memset (loop, 0, sizeof (struct ev_loop)); |
1748 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1513 | |
|
|
1514 | loop_init (EV_A_ flags); |
1749 | loop_init (EV_A_ flags); |
1515 | |
1750 | |
1516 | if (ev_backend (EV_A)) |
1751 | if (ev_backend (EV_A)) |
1517 | return loop; |
1752 | return EV_A; |
1518 | |
1753 | |
1519 | return 0; |
1754 | return 0; |
1520 | } |
1755 | } |
1521 | |
1756 | |
1522 | void |
1757 | void |
… | |
… | |
1529 | void |
1764 | void |
1530 | ev_loop_fork (EV_P) |
1765 | ev_loop_fork (EV_P) |
1531 | { |
1766 | { |
1532 | postfork = 1; /* must be in line with ev_default_fork */ |
1767 | postfork = 1; /* must be in line with ev_default_fork */ |
1533 | } |
1768 | } |
|
|
1769 | #endif /* multiplicity */ |
1534 | |
1770 | |
1535 | #if EV_VERIFY |
1771 | #if EV_VERIFY |
1536 | static void noinline |
1772 | static void noinline |
1537 | verify_watcher (EV_P_ W w) |
1773 | verify_watcher (EV_P_ W w) |
1538 | { |
1774 | { |
1539 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1775 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1540 | |
1776 | |
1541 | if (w->pending) |
1777 | if (w->pending) |
1542 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1778 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1543 | } |
1779 | } |
1544 | |
1780 | |
1545 | static void noinline |
1781 | static void noinline |
1546 | verify_heap (EV_P_ ANHE *heap, int N) |
1782 | verify_heap (EV_P_ ANHE *heap, int N) |
1547 | { |
1783 | { |
1548 | int i; |
1784 | int i; |
1549 | |
1785 | |
1550 | for (i = HEAP0; i < N + HEAP0; ++i) |
1786 | for (i = HEAP0; i < N + HEAP0; ++i) |
1551 | { |
1787 | { |
1552 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1788 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1553 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1789 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1554 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1790 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1555 | |
1791 | |
1556 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1792 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1557 | } |
1793 | } |
1558 | } |
1794 | } |
1559 | |
1795 | |
1560 | static void noinline |
1796 | static void noinline |
1561 | array_verify (EV_P_ W *ws, int cnt) |
1797 | array_verify (EV_P_ W *ws, int cnt) |
1562 | { |
1798 | { |
1563 | while (cnt--) |
1799 | while (cnt--) |
1564 | { |
1800 | { |
1565 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1801 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1566 | verify_watcher (EV_A_ ws [cnt]); |
1802 | verify_watcher (EV_A_ ws [cnt]); |
1567 | } |
1803 | } |
1568 | } |
1804 | } |
1569 | #endif |
1805 | #endif |
1570 | |
1806 | |
|
|
1807 | #if EV_MINIMAL < 2 |
1571 | void |
1808 | void |
1572 | ev_loop_verify (EV_P) |
1809 | ev_loop_verify (EV_P) |
1573 | { |
1810 | { |
1574 | #if EV_VERIFY |
1811 | #if EV_VERIFY |
1575 | int i; |
1812 | int i; |
… | |
… | |
1577 | |
1814 | |
1578 | assert (activecnt >= -1); |
1815 | assert (activecnt >= -1); |
1579 | |
1816 | |
1580 | assert (fdchangemax >= fdchangecnt); |
1817 | assert (fdchangemax >= fdchangecnt); |
1581 | for (i = 0; i < fdchangecnt; ++i) |
1818 | for (i = 0; i < fdchangecnt; ++i) |
1582 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1819 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1583 | |
1820 | |
1584 | assert (anfdmax >= 0); |
1821 | assert (anfdmax >= 0); |
1585 | for (i = 0; i < anfdmax; ++i) |
1822 | for (i = 0; i < anfdmax; ++i) |
1586 | for (w = anfds [i].head; w; w = w->next) |
1823 | for (w = anfds [i].head; w; w = w->next) |
1587 | { |
1824 | { |
1588 | verify_watcher (EV_A_ (W)w); |
1825 | verify_watcher (EV_A_ (W)w); |
1589 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1826 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1590 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1827 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1591 | } |
1828 | } |
1592 | |
1829 | |
1593 | assert (timermax >= timercnt); |
1830 | assert (timermax >= timercnt); |
1594 | verify_heap (EV_A_ timers, timercnt); |
1831 | verify_heap (EV_A_ timers, timercnt); |
1595 | |
1832 | |
… | |
… | |
1624 | assert (checkmax >= checkcnt); |
1861 | assert (checkmax >= checkcnt); |
1625 | array_verify (EV_A_ (W *)checks, checkcnt); |
1862 | array_verify (EV_A_ (W *)checks, checkcnt); |
1626 | |
1863 | |
1627 | # if 0 |
1864 | # if 0 |
1628 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1865 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1629 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1866 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1630 | # endif |
1867 | # endif |
1631 | #endif |
1868 | #endif |
1632 | } |
1869 | } |
1633 | |
1870 | #endif |
1634 | #endif /* multiplicity */ |
|
|
1635 | |
1871 | |
1636 | #if EV_MULTIPLICITY |
1872 | #if EV_MULTIPLICITY |
1637 | struct ev_loop * |
1873 | struct ev_loop * |
1638 | ev_default_loop_init (unsigned int flags) |
1874 | ev_default_loop_init (unsigned int flags) |
1639 | #else |
1875 | #else |
… | |
… | |
1642 | #endif |
1878 | #endif |
1643 | { |
1879 | { |
1644 | if (!ev_default_loop_ptr) |
1880 | if (!ev_default_loop_ptr) |
1645 | { |
1881 | { |
1646 | #if EV_MULTIPLICITY |
1882 | #if EV_MULTIPLICITY |
1647 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1883 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1648 | #else |
1884 | #else |
1649 | ev_default_loop_ptr = 1; |
1885 | ev_default_loop_ptr = 1; |
1650 | #endif |
1886 | #endif |
1651 | |
1887 | |
1652 | loop_init (EV_A_ flags); |
1888 | loop_init (EV_A_ flags); |
… | |
… | |
1669 | |
1905 | |
1670 | void |
1906 | void |
1671 | ev_default_destroy (void) |
1907 | ev_default_destroy (void) |
1672 | { |
1908 | { |
1673 | #if EV_MULTIPLICITY |
1909 | #if EV_MULTIPLICITY |
1674 | struct ev_loop *loop = ev_default_loop_ptr; |
1910 | EV_P = ev_default_loop_ptr; |
1675 | #endif |
1911 | #endif |
1676 | |
1912 | |
1677 | ev_default_loop_ptr = 0; |
1913 | ev_default_loop_ptr = 0; |
1678 | |
1914 | |
1679 | #ifndef _WIN32 |
1915 | #ifndef _WIN32 |
… | |
… | |
1686 | |
1922 | |
1687 | void |
1923 | void |
1688 | ev_default_fork (void) |
1924 | ev_default_fork (void) |
1689 | { |
1925 | { |
1690 | #if EV_MULTIPLICITY |
1926 | #if EV_MULTIPLICITY |
1691 | struct ev_loop *loop = ev_default_loop_ptr; |
1927 | EV_P = ev_default_loop_ptr; |
1692 | #endif |
1928 | #endif |
1693 | |
1929 | |
1694 | postfork = 1; /* must be in line with ev_loop_fork */ |
1930 | postfork = 1; /* must be in line with ev_loop_fork */ |
1695 | } |
1931 | } |
1696 | |
1932 | |
… | |
… | |
1700 | ev_invoke (EV_P_ void *w, int revents) |
1936 | ev_invoke (EV_P_ void *w, int revents) |
1701 | { |
1937 | { |
1702 | EV_CB_INVOKE ((W)w, revents); |
1938 | EV_CB_INVOKE ((W)w, revents); |
1703 | } |
1939 | } |
1704 | |
1940 | |
1705 | void inline_speed |
1941 | unsigned int |
1706 | call_pending (EV_P) |
1942 | ev_pending_count (EV_P) |
|
|
1943 | { |
|
|
1944 | int pri; |
|
|
1945 | unsigned int count = 0; |
|
|
1946 | |
|
|
1947 | for (pri = NUMPRI; pri--; ) |
|
|
1948 | count += pendingcnt [pri]; |
|
|
1949 | |
|
|
1950 | return count; |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | void noinline |
|
|
1954 | ev_invoke_pending (EV_P) |
1707 | { |
1955 | { |
1708 | int pri; |
1956 | int pri; |
1709 | |
1957 | |
1710 | for (pri = NUMPRI; pri--; ) |
1958 | for (pri = NUMPRI; pri--; ) |
1711 | while (pendingcnt [pri]) |
1959 | while (pendingcnt [pri]) |
1712 | { |
1960 | { |
1713 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1961 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1714 | |
1962 | |
1715 | if (expect_true (p->w)) |
|
|
1716 | { |
|
|
1717 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1963 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1964 | /* ^ this is no longer true, as pending_w could be here */ |
1718 | |
1965 | |
1719 | p->w->pending = 0; |
1966 | p->w->pending = 0; |
1720 | EV_CB_INVOKE (p->w, p->events); |
1967 | EV_CB_INVOKE (p->w, p->events); |
1721 | EV_FREQUENT_CHECK; |
1968 | EV_FREQUENT_CHECK; |
1722 | } |
|
|
1723 | } |
1969 | } |
1724 | } |
1970 | } |
1725 | |
1971 | |
1726 | #if EV_IDLE_ENABLE |
1972 | #if EV_IDLE_ENABLE |
1727 | void inline_size |
1973 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1974 | /* only when higher priorities are idle" logic */ |
|
|
1975 | inline_size void |
1728 | idle_reify (EV_P) |
1976 | idle_reify (EV_P) |
1729 | { |
1977 | { |
1730 | if (expect_false (idleall)) |
1978 | if (expect_false (idleall)) |
1731 | { |
1979 | { |
1732 | int pri; |
1980 | int pri; |
… | |
… | |
1744 | } |
1992 | } |
1745 | } |
1993 | } |
1746 | } |
1994 | } |
1747 | #endif |
1995 | #endif |
1748 | |
1996 | |
1749 | void inline_size |
1997 | /* make timers pending */ |
|
|
1998 | inline_size void |
1750 | timers_reify (EV_P) |
1999 | timers_reify (EV_P) |
1751 | { |
2000 | { |
1752 | EV_FREQUENT_CHECK; |
2001 | EV_FREQUENT_CHECK; |
1753 | |
2002 | |
1754 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2003 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1755 | { |
2004 | { |
1756 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2005 | do |
1757 | |
|
|
1758 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1759 | |
|
|
1760 | /* first reschedule or stop timer */ |
|
|
1761 | if (w->repeat) |
|
|
1762 | { |
2006 | { |
|
|
2007 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2008 | |
|
|
2009 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2010 | |
|
|
2011 | /* first reschedule or stop timer */ |
|
|
2012 | if (w->repeat) |
|
|
2013 | { |
1763 | ev_at (w) += w->repeat; |
2014 | ev_at (w) += w->repeat; |
1764 | if (ev_at (w) < mn_now) |
2015 | if (ev_at (w) < mn_now) |
1765 | ev_at (w) = mn_now; |
2016 | ev_at (w) = mn_now; |
1766 | |
2017 | |
1767 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2018 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1768 | |
2019 | |
1769 | ANHE_at_cache (timers [HEAP0]); |
2020 | ANHE_at_cache (timers [HEAP0]); |
1770 | downheap (timers, timercnt, HEAP0); |
2021 | downheap (timers, timercnt, HEAP0); |
|
|
2022 | } |
|
|
2023 | else |
|
|
2024 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2025 | |
|
|
2026 | EV_FREQUENT_CHECK; |
|
|
2027 | feed_reverse (EV_A_ (W)w); |
1771 | } |
2028 | } |
1772 | else |
2029 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1773 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1774 | |
2030 | |
1775 | EV_FREQUENT_CHECK; |
|
|
1776 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2031 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1777 | } |
2032 | } |
1778 | } |
2033 | } |
1779 | |
2034 | |
1780 | #if EV_PERIODIC_ENABLE |
2035 | #if EV_PERIODIC_ENABLE |
1781 | void inline_size |
2036 | /* make periodics pending */ |
|
|
2037 | inline_size void |
1782 | periodics_reify (EV_P) |
2038 | periodics_reify (EV_P) |
1783 | { |
2039 | { |
1784 | EV_FREQUENT_CHECK; |
2040 | EV_FREQUENT_CHECK; |
1785 | |
2041 | |
1786 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2042 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1787 | { |
2043 | { |
1788 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2044 | int feed_count = 0; |
1789 | |
2045 | |
1790 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2046 | do |
1791 | |
|
|
1792 | /* first reschedule or stop timer */ |
|
|
1793 | if (w->reschedule_cb) |
|
|
1794 | { |
2047 | { |
|
|
2048 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2049 | |
|
|
2050 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2051 | |
|
|
2052 | /* first reschedule or stop timer */ |
|
|
2053 | if (w->reschedule_cb) |
|
|
2054 | { |
1795 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2055 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1796 | |
2056 | |
1797 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2057 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1798 | |
2058 | |
1799 | ANHE_at_cache (periodics [HEAP0]); |
2059 | ANHE_at_cache (periodics [HEAP0]); |
1800 | downheap (periodics, periodiccnt, HEAP0); |
2060 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2061 | } |
|
|
2062 | else if (w->interval) |
|
|
2063 | { |
|
|
2064 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2065 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2066 | /* this might happen because of floating point inexactness */ |
|
|
2067 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2068 | { |
|
|
2069 | ev_at (w) += w->interval; |
|
|
2070 | |
|
|
2071 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2072 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2073 | /* has effectively asked to get triggered more often than possible */ |
|
|
2074 | if (ev_at (w) < ev_rt_now) |
|
|
2075 | ev_at (w) = ev_rt_now; |
|
|
2076 | } |
|
|
2077 | |
|
|
2078 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2079 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2080 | } |
|
|
2081 | else |
|
|
2082 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2083 | |
|
|
2084 | EV_FREQUENT_CHECK; |
|
|
2085 | feed_reverse (EV_A_ (W)w); |
1801 | } |
2086 | } |
1802 | else if (w->interval) |
2087 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1803 | { |
|
|
1804 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1805 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1806 | /* this might happen because of floating point inexactness */ |
|
|
1807 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1808 | { |
|
|
1809 | ev_at (w) += w->interval; |
|
|
1810 | |
2088 | |
1811 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1812 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1813 | /* has effectively asked to get triggered more often than possible */ |
|
|
1814 | if (ev_at (w) < ev_rt_now) |
|
|
1815 | ev_at (w) = ev_rt_now; |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1819 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1820 | } |
|
|
1821 | else |
|
|
1822 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1823 | |
|
|
1824 | EV_FREQUENT_CHECK; |
|
|
1825 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2089 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1826 | } |
2090 | } |
1827 | } |
2091 | } |
1828 | |
2092 | |
|
|
2093 | /* simply recalculate all periodics */ |
|
|
2094 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1829 | static void noinline |
2095 | static void noinline |
1830 | periodics_reschedule (EV_P) |
2096 | periodics_reschedule (EV_P) |
1831 | { |
2097 | { |
1832 | int i; |
2098 | int i; |
1833 | |
2099 | |
… | |
… | |
1846 | |
2112 | |
1847 | reheap (periodics, periodiccnt); |
2113 | reheap (periodics, periodiccnt); |
1848 | } |
2114 | } |
1849 | #endif |
2115 | #endif |
1850 | |
2116 | |
1851 | void inline_speed |
2117 | /* adjust all timers by a given offset */ |
|
|
2118 | static void noinline |
|
|
2119 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2120 | { |
|
|
2121 | int i; |
|
|
2122 | |
|
|
2123 | for (i = 0; i < timercnt; ++i) |
|
|
2124 | { |
|
|
2125 | ANHE *he = timers + i + HEAP0; |
|
|
2126 | ANHE_w (*he)->at += adjust; |
|
|
2127 | ANHE_at_cache (*he); |
|
|
2128 | } |
|
|
2129 | } |
|
|
2130 | |
|
|
2131 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2132 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2133 | inline_speed void |
1852 | time_update (EV_P_ ev_tstamp max_block) |
2134 | time_update (EV_P_ ev_tstamp max_block) |
1853 | { |
2135 | { |
1854 | int i; |
|
|
1855 | |
|
|
1856 | #if EV_USE_MONOTONIC |
2136 | #if EV_USE_MONOTONIC |
1857 | if (expect_true (have_monotonic)) |
2137 | if (expect_true (have_monotonic)) |
1858 | { |
2138 | { |
|
|
2139 | int i; |
1859 | ev_tstamp odiff = rtmn_diff; |
2140 | ev_tstamp odiff = rtmn_diff; |
1860 | |
2141 | |
1861 | mn_now = get_clock (); |
2142 | mn_now = get_clock (); |
1862 | |
2143 | |
1863 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2144 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1889 | ev_rt_now = ev_time (); |
2170 | ev_rt_now = ev_time (); |
1890 | mn_now = get_clock (); |
2171 | mn_now = get_clock (); |
1891 | now_floor = mn_now; |
2172 | now_floor = mn_now; |
1892 | } |
2173 | } |
1893 | |
2174 | |
|
|
2175 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2176 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1894 | # if EV_PERIODIC_ENABLE |
2177 | # if EV_PERIODIC_ENABLE |
1895 | periodics_reschedule (EV_A); |
2178 | periodics_reschedule (EV_A); |
1896 | # endif |
2179 | # endif |
1897 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1898 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1899 | } |
2180 | } |
1900 | else |
2181 | else |
1901 | #endif |
2182 | #endif |
1902 | { |
2183 | { |
1903 | ev_rt_now = ev_time (); |
2184 | ev_rt_now = ev_time (); |
1904 | |
2185 | |
1905 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2186 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1906 | { |
2187 | { |
|
|
2188 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2189 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1907 | #if EV_PERIODIC_ENABLE |
2190 | #if EV_PERIODIC_ENABLE |
1908 | periodics_reschedule (EV_A); |
2191 | periodics_reschedule (EV_A); |
1909 | #endif |
2192 | #endif |
1910 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1911 | for (i = 0; i < timercnt; ++i) |
|
|
1912 | { |
|
|
1913 | ANHE *he = timers + i + HEAP0; |
|
|
1914 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1915 | ANHE_at_cache (*he); |
|
|
1916 | } |
|
|
1917 | } |
2193 | } |
1918 | |
2194 | |
1919 | mn_now = ev_rt_now; |
2195 | mn_now = ev_rt_now; |
1920 | } |
2196 | } |
1921 | } |
2197 | } |
1922 | |
2198 | |
1923 | void |
2199 | void |
1924 | ev_ref (EV_P) |
|
|
1925 | { |
|
|
1926 | ++activecnt; |
|
|
1927 | } |
|
|
1928 | |
|
|
1929 | void |
|
|
1930 | ev_unref (EV_P) |
|
|
1931 | { |
|
|
1932 | --activecnt; |
|
|
1933 | } |
|
|
1934 | |
|
|
1935 | void |
|
|
1936 | ev_now_update (EV_P) |
|
|
1937 | { |
|
|
1938 | time_update (EV_A_ 1e100); |
|
|
1939 | } |
|
|
1940 | |
|
|
1941 | static int loop_done; |
|
|
1942 | |
|
|
1943 | void |
|
|
1944 | ev_loop (EV_P_ int flags) |
2200 | ev_loop (EV_P_ int flags) |
1945 | { |
2201 | { |
|
|
2202 | #if EV_MINIMAL < 2 |
|
|
2203 | ++loop_depth; |
|
|
2204 | #endif |
|
|
2205 | |
|
|
2206 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2207 | |
1946 | loop_done = EVUNLOOP_CANCEL; |
2208 | loop_done = EVUNLOOP_CANCEL; |
1947 | |
2209 | |
1948 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2210 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1949 | |
2211 | |
1950 | do |
2212 | do |
1951 | { |
2213 | { |
1952 | #if EV_VERIFY >= 2 |
2214 | #if EV_VERIFY >= 2 |
1953 | ev_loop_verify (EV_A); |
2215 | ev_loop_verify (EV_A); |
… | |
… | |
1966 | /* we might have forked, so queue fork handlers */ |
2228 | /* we might have forked, so queue fork handlers */ |
1967 | if (expect_false (postfork)) |
2229 | if (expect_false (postfork)) |
1968 | if (forkcnt) |
2230 | if (forkcnt) |
1969 | { |
2231 | { |
1970 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2232 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1971 | call_pending (EV_A); |
2233 | EV_INVOKE_PENDING; |
1972 | } |
2234 | } |
1973 | #endif |
2235 | #endif |
1974 | |
2236 | |
1975 | /* queue prepare watchers (and execute them) */ |
2237 | /* queue prepare watchers (and execute them) */ |
1976 | if (expect_false (preparecnt)) |
2238 | if (expect_false (preparecnt)) |
1977 | { |
2239 | { |
1978 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2240 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1979 | call_pending (EV_A); |
2241 | EV_INVOKE_PENDING; |
1980 | } |
2242 | } |
1981 | |
2243 | |
1982 | if (expect_false (!activecnt)) |
2244 | if (expect_false (loop_done)) |
1983 | break; |
2245 | break; |
1984 | |
2246 | |
1985 | /* we might have forked, so reify kernel state if necessary */ |
2247 | /* we might have forked, so reify kernel state if necessary */ |
1986 | if (expect_false (postfork)) |
2248 | if (expect_false (postfork)) |
1987 | loop_fork (EV_A); |
2249 | loop_fork (EV_A); |
… | |
… | |
1994 | ev_tstamp waittime = 0.; |
2256 | ev_tstamp waittime = 0.; |
1995 | ev_tstamp sleeptime = 0.; |
2257 | ev_tstamp sleeptime = 0.; |
1996 | |
2258 | |
1997 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2259 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1998 | { |
2260 | { |
|
|
2261 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2262 | ev_tstamp prev_mn_now = mn_now; |
|
|
2263 | |
1999 | /* update time to cancel out callback processing overhead */ |
2264 | /* update time to cancel out callback processing overhead */ |
2000 | time_update (EV_A_ 1e100); |
2265 | time_update (EV_A_ 1e100); |
2001 | |
2266 | |
2002 | waittime = MAX_BLOCKTIME; |
2267 | waittime = MAX_BLOCKTIME; |
2003 | |
2268 | |
… | |
… | |
2013 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2278 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2014 | if (waittime > to) waittime = to; |
2279 | if (waittime > to) waittime = to; |
2015 | } |
2280 | } |
2016 | #endif |
2281 | #endif |
2017 | |
2282 | |
|
|
2283 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2018 | if (expect_false (waittime < timeout_blocktime)) |
2284 | if (expect_false (waittime < timeout_blocktime)) |
2019 | waittime = timeout_blocktime; |
2285 | waittime = timeout_blocktime; |
2020 | |
2286 | |
2021 | sleeptime = waittime - backend_fudge; |
2287 | /* extra check because io_blocktime is commonly 0 */ |
2022 | |
|
|
2023 | if (expect_true (sleeptime > io_blocktime)) |
2288 | if (expect_false (io_blocktime)) |
2024 | sleeptime = io_blocktime; |
|
|
2025 | |
|
|
2026 | if (sleeptime) |
|
|
2027 | { |
2289 | { |
|
|
2290 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2291 | |
|
|
2292 | if (sleeptime > waittime - backend_fudge) |
|
|
2293 | sleeptime = waittime - backend_fudge; |
|
|
2294 | |
|
|
2295 | if (expect_true (sleeptime > 0.)) |
|
|
2296 | { |
2028 | ev_sleep (sleeptime); |
2297 | ev_sleep (sleeptime); |
2029 | waittime -= sleeptime; |
2298 | waittime -= sleeptime; |
|
|
2299 | } |
2030 | } |
2300 | } |
2031 | } |
2301 | } |
2032 | |
2302 | |
|
|
2303 | #if EV_MINIMAL < 2 |
2033 | ++loop_count; |
2304 | ++loop_count; |
|
|
2305 | #endif |
|
|
2306 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2034 | backend_poll (EV_A_ waittime); |
2307 | backend_poll (EV_A_ waittime); |
|
|
2308 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2035 | |
2309 | |
2036 | /* update ev_rt_now, do magic */ |
2310 | /* update ev_rt_now, do magic */ |
2037 | time_update (EV_A_ waittime + sleeptime); |
2311 | time_update (EV_A_ waittime + sleeptime); |
2038 | } |
2312 | } |
2039 | |
2313 | |
… | |
… | |
2050 | |
2324 | |
2051 | /* queue check watchers, to be executed first */ |
2325 | /* queue check watchers, to be executed first */ |
2052 | if (expect_false (checkcnt)) |
2326 | if (expect_false (checkcnt)) |
2053 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2327 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2054 | |
2328 | |
2055 | call_pending (EV_A); |
2329 | EV_INVOKE_PENDING; |
2056 | } |
2330 | } |
2057 | while (expect_true ( |
2331 | while (expect_true ( |
2058 | activecnt |
2332 | activecnt |
2059 | && !loop_done |
2333 | && !loop_done |
2060 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2334 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2061 | )); |
2335 | )); |
2062 | |
2336 | |
2063 | if (loop_done == EVUNLOOP_ONE) |
2337 | if (loop_done == EVUNLOOP_ONE) |
2064 | loop_done = EVUNLOOP_CANCEL; |
2338 | loop_done = EVUNLOOP_CANCEL; |
|
|
2339 | |
|
|
2340 | #if EV_MINIMAL < 2 |
|
|
2341 | --loop_depth; |
|
|
2342 | #endif |
2065 | } |
2343 | } |
2066 | |
2344 | |
2067 | void |
2345 | void |
2068 | ev_unloop (EV_P_ int how) |
2346 | ev_unloop (EV_P_ int how) |
2069 | { |
2347 | { |
2070 | loop_done = how; |
2348 | loop_done = how; |
2071 | } |
2349 | } |
2072 | |
2350 | |
|
|
2351 | void |
|
|
2352 | ev_ref (EV_P) |
|
|
2353 | { |
|
|
2354 | ++activecnt; |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | void |
|
|
2358 | ev_unref (EV_P) |
|
|
2359 | { |
|
|
2360 | --activecnt; |
|
|
2361 | } |
|
|
2362 | |
|
|
2363 | void |
|
|
2364 | ev_now_update (EV_P) |
|
|
2365 | { |
|
|
2366 | time_update (EV_A_ 1e100); |
|
|
2367 | } |
|
|
2368 | |
|
|
2369 | void |
|
|
2370 | ev_suspend (EV_P) |
|
|
2371 | { |
|
|
2372 | ev_now_update (EV_A); |
|
|
2373 | } |
|
|
2374 | |
|
|
2375 | void |
|
|
2376 | ev_resume (EV_P) |
|
|
2377 | { |
|
|
2378 | ev_tstamp mn_prev = mn_now; |
|
|
2379 | |
|
|
2380 | ev_now_update (EV_A); |
|
|
2381 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2382 | #if EV_PERIODIC_ENABLE |
|
|
2383 | /* TODO: really do this? */ |
|
|
2384 | periodics_reschedule (EV_A); |
|
|
2385 | #endif |
|
|
2386 | } |
|
|
2387 | |
2073 | /*****************************************************************************/ |
2388 | /*****************************************************************************/ |
|
|
2389 | /* singly-linked list management, used when the expected list length is short */ |
2074 | |
2390 | |
2075 | void inline_size |
2391 | inline_size void |
2076 | wlist_add (WL *head, WL elem) |
2392 | wlist_add (WL *head, WL elem) |
2077 | { |
2393 | { |
2078 | elem->next = *head; |
2394 | elem->next = *head; |
2079 | *head = elem; |
2395 | *head = elem; |
2080 | } |
2396 | } |
2081 | |
2397 | |
2082 | void inline_size |
2398 | inline_size void |
2083 | wlist_del (WL *head, WL elem) |
2399 | wlist_del (WL *head, WL elem) |
2084 | { |
2400 | { |
2085 | while (*head) |
2401 | while (*head) |
2086 | { |
2402 | { |
2087 | if (*head == elem) |
2403 | if (expect_true (*head == elem)) |
2088 | { |
2404 | { |
2089 | *head = elem->next; |
2405 | *head = elem->next; |
2090 | return; |
2406 | break; |
2091 | } |
2407 | } |
2092 | |
2408 | |
2093 | head = &(*head)->next; |
2409 | head = &(*head)->next; |
2094 | } |
2410 | } |
2095 | } |
2411 | } |
2096 | |
2412 | |
2097 | void inline_speed |
2413 | /* internal, faster, version of ev_clear_pending */ |
|
|
2414 | inline_speed void |
2098 | clear_pending (EV_P_ W w) |
2415 | clear_pending (EV_P_ W w) |
2099 | { |
2416 | { |
2100 | if (w->pending) |
2417 | if (w->pending) |
2101 | { |
2418 | { |
2102 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2419 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2103 | w->pending = 0; |
2420 | w->pending = 0; |
2104 | } |
2421 | } |
2105 | } |
2422 | } |
2106 | |
2423 | |
2107 | int |
2424 | int |
… | |
… | |
2111 | int pending = w_->pending; |
2428 | int pending = w_->pending; |
2112 | |
2429 | |
2113 | if (expect_true (pending)) |
2430 | if (expect_true (pending)) |
2114 | { |
2431 | { |
2115 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2432 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2433 | p->w = (W)&pending_w; |
2116 | w_->pending = 0; |
2434 | w_->pending = 0; |
2117 | p->w = 0; |
|
|
2118 | return p->events; |
2435 | return p->events; |
2119 | } |
2436 | } |
2120 | else |
2437 | else |
2121 | return 0; |
2438 | return 0; |
2122 | } |
2439 | } |
2123 | |
2440 | |
2124 | void inline_size |
2441 | inline_size void |
2125 | pri_adjust (EV_P_ W w) |
2442 | pri_adjust (EV_P_ W w) |
2126 | { |
2443 | { |
2127 | int pri = w->priority; |
2444 | int pri = ev_priority (w); |
2128 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2445 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2129 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2446 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2130 | w->priority = pri; |
2447 | ev_set_priority (w, pri); |
2131 | } |
2448 | } |
2132 | |
2449 | |
2133 | void inline_speed |
2450 | inline_speed void |
2134 | ev_start (EV_P_ W w, int active) |
2451 | ev_start (EV_P_ W w, int active) |
2135 | { |
2452 | { |
2136 | pri_adjust (EV_A_ w); |
2453 | pri_adjust (EV_A_ w); |
2137 | w->active = active; |
2454 | w->active = active; |
2138 | ev_ref (EV_A); |
2455 | ev_ref (EV_A); |
2139 | } |
2456 | } |
2140 | |
2457 | |
2141 | void inline_size |
2458 | inline_size void |
2142 | ev_stop (EV_P_ W w) |
2459 | ev_stop (EV_P_ W w) |
2143 | { |
2460 | { |
2144 | ev_unref (EV_A); |
2461 | ev_unref (EV_A); |
2145 | w->active = 0; |
2462 | w->active = 0; |
2146 | } |
2463 | } |
… | |
… | |
2153 | int fd = w->fd; |
2470 | int fd = w->fd; |
2154 | |
2471 | |
2155 | if (expect_false (ev_is_active (w))) |
2472 | if (expect_false (ev_is_active (w))) |
2156 | return; |
2473 | return; |
2157 | |
2474 | |
2158 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2475 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2159 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2476 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2160 | |
2477 | |
2161 | EV_FREQUENT_CHECK; |
2478 | EV_FREQUENT_CHECK; |
2162 | |
2479 | |
2163 | ev_start (EV_A_ (W)w, 1); |
2480 | ev_start (EV_A_ (W)w, 1); |
2164 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2481 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2165 | wlist_add (&anfds[fd].head, (WL)w); |
2482 | wlist_add (&anfds[fd].head, (WL)w); |
2166 | |
2483 | |
2167 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2484 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2168 | w->events &= ~EV_IOFDSET; |
2485 | w->events &= ~EV__IOFDSET; |
2169 | |
2486 | |
2170 | EV_FREQUENT_CHECK; |
2487 | EV_FREQUENT_CHECK; |
2171 | } |
2488 | } |
2172 | |
2489 | |
2173 | void noinline |
2490 | void noinline |
… | |
… | |
2175 | { |
2492 | { |
2176 | clear_pending (EV_A_ (W)w); |
2493 | clear_pending (EV_A_ (W)w); |
2177 | if (expect_false (!ev_is_active (w))) |
2494 | if (expect_false (!ev_is_active (w))) |
2178 | return; |
2495 | return; |
2179 | |
2496 | |
2180 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2497 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2181 | |
2498 | |
2182 | EV_FREQUENT_CHECK; |
2499 | EV_FREQUENT_CHECK; |
2183 | |
2500 | |
2184 | wlist_del (&anfds[w->fd].head, (WL)w); |
2501 | wlist_del (&anfds[w->fd].head, (WL)w); |
2185 | ev_stop (EV_A_ (W)w); |
2502 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2195 | if (expect_false (ev_is_active (w))) |
2512 | if (expect_false (ev_is_active (w))) |
2196 | return; |
2513 | return; |
2197 | |
2514 | |
2198 | ev_at (w) += mn_now; |
2515 | ev_at (w) += mn_now; |
2199 | |
2516 | |
2200 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2517 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2201 | |
2518 | |
2202 | EV_FREQUENT_CHECK; |
2519 | EV_FREQUENT_CHECK; |
2203 | |
2520 | |
2204 | ++timercnt; |
2521 | ++timercnt; |
2205 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2522 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2208 | ANHE_at_cache (timers [ev_active (w)]); |
2525 | ANHE_at_cache (timers [ev_active (w)]); |
2209 | upheap (timers, ev_active (w)); |
2526 | upheap (timers, ev_active (w)); |
2210 | |
2527 | |
2211 | EV_FREQUENT_CHECK; |
2528 | EV_FREQUENT_CHECK; |
2212 | |
2529 | |
2213 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2530 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2214 | } |
2531 | } |
2215 | |
2532 | |
2216 | void noinline |
2533 | void noinline |
2217 | ev_timer_stop (EV_P_ ev_timer *w) |
2534 | ev_timer_stop (EV_P_ ev_timer *w) |
2218 | { |
2535 | { |
… | |
… | |
2223 | EV_FREQUENT_CHECK; |
2540 | EV_FREQUENT_CHECK; |
2224 | |
2541 | |
2225 | { |
2542 | { |
2226 | int active = ev_active (w); |
2543 | int active = ev_active (w); |
2227 | |
2544 | |
2228 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2545 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2229 | |
2546 | |
2230 | --timercnt; |
2547 | --timercnt; |
2231 | |
2548 | |
2232 | if (expect_true (active < timercnt + HEAP0)) |
2549 | if (expect_true (active < timercnt + HEAP0)) |
2233 | { |
2550 | { |
… | |
… | |
2266 | } |
2583 | } |
2267 | |
2584 | |
2268 | EV_FREQUENT_CHECK; |
2585 | EV_FREQUENT_CHECK; |
2269 | } |
2586 | } |
2270 | |
2587 | |
|
|
2588 | ev_tstamp |
|
|
2589 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2590 | { |
|
|
2591 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2592 | } |
|
|
2593 | |
2271 | #if EV_PERIODIC_ENABLE |
2594 | #if EV_PERIODIC_ENABLE |
2272 | void noinline |
2595 | void noinline |
2273 | ev_periodic_start (EV_P_ ev_periodic *w) |
2596 | ev_periodic_start (EV_P_ ev_periodic *w) |
2274 | { |
2597 | { |
2275 | if (expect_false (ev_is_active (w))) |
2598 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2277 | |
2600 | |
2278 | if (w->reschedule_cb) |
2601 | if (w->reschedule_cb) |
2279 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2602 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2280 | else if (w->interval) |
2603 | else if (w->interval) |
2281 | { |
2604 | { |
2282 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2605 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2283 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2606 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2284 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2607 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2285 | } |
2608 | } |
2286 | else |
2609 | else |
2287 | ev_at (w) = w->offset; |
2610 | ev_at (w) = w->offset; |
… | |
… | |
2295 | ANHE_at_cache (periodics [ev_active (w)]); |
2618 | ANHE_at_cache (periodics [ev_active (w)]); |
2296 | upheap (periodics, ev_active (w)); |
2619 | upheap (periodics, ev_active (w)); |
2297 | |
2620 | |
2298 | EV_FREQUENT_CHECK; |
2621 | EV_FREQUENT_CHECK; |
2299 | |
2622 | |
2300 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2623 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2301 | } |
2624 | } |
2302 | |
2625 | |
2303 | void noinline |
2626 | void noinline |
2304 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2627 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2305 | { |
2628 | { |
… | |
… | |
2310 | EV_FREQUENT_CHECK; |
2633 | EV_FREQUENT_CHECK; |
2311 | |
2634 | |
2312 | { |
2635 | { |
2313 | int active = ev_active (w); |
2636 | int active = ev_active (w); |
2314 | |
2637 | |
2315 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2638 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2316 | |
2639 | |
2317 | --periodiccnt; |
2640 | --periodiccnt; |
2318 | |
2641 | |
2319 | if (expect_true (active < periodiccnt + HEAP0)) |
2642 | if (expect_true (active < periodiccnt + HEAP0)) |
2320 | { |
2643 | { |
… | |
… | |
2342 | #endif |
2665 | #endif |
2343 | |
2666 | |
2344 | void noinline |
2667 | void noinline |
2345 | ev_signal_start (EV_P_ ev_signal *w) |
2668 | ev_signal_start (EV_P_ ev_signal *w) |
2346 | { |
2669 | { |
2347 | #if EV_MULTIPLICITY |
|
|
2348 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2349 | #endif |
|
|
2350 | if (expect_false (ev_is_active (w))) |
2670 | if (expect_false (ev_is_active (w))) |
2351 | return; |
2671 | return; |
2352 | |
2672 | |
2353 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2673 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2354 | |
2674 | |
2355 | evpipe_init (EV_A); |
2675 | #if EV_MULTIPLICITY |
|
|
2676 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2677 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2356 | |
2678 | |
2357 | EV_FREQUENT_CHECK; |
2679 | signals [w->signum - 1].loop = EV_A; |
|
|
2680 | #endif |
2358 | |
2681 | |
|
|
2682 | EV_FREQUENT_CHECK; |
|
|
2683 | |
|
|
2684 | #if EV_USE_SIGNALFD |
|
|
2685 | if (sigfd == -2) |
2359 | { |
2686 | { |
2360 | #ifndef _WIN32 |
2687 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2361 | sigset_t full, prev; |
2688 | if (sigfd < 0 && errno == EINVAL) |
2362 | sigfillset (&full); |
2689 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2363 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2364 | #endif |
|
|
2365 | |
2690 | |
2366 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2691 | if (sigfd >= 0) |
|
|
2692 | { |
|
|
2693 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2367 | |
2694 | |
2368 | #ifndef _WIN32 |
2695 | sigemptyset (&sigfd_set); |
2369 | sigprocmask (SIG_SETMASK, &prev, 0); |
2696 | |
2370 | #endif |
2697 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2698 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2699 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2700 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2701 | } |
2371 | } |
2702 | } |
|
|
2703 | |
|
|
2704 | if (sigfd >= 0) |
|
|
2705 | { |
|
|
2706 | /* TODO: check .head */ |
|
|
2707 | sigaddset (&sigfd_set, w->signum); |
|
|
2708 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2709 | |
|
|
2710 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2711 | } |
|
|
2712 | #endif |
2372 | |
2713 | |
2373 | ev_start (EV_A_ (W)w, 1); |
2714 | ev_start (EV_A_ (W)w, 1); |
2374 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2715 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2375 | |
2716 | |
2376 | if (!((WL)w)->next) |
2717 | if (!((WL)w)->next) |
|
|
2718 | # if EV_USE_SIGNALFD |
|
|
2719 | if (sigfd < 0) /*TODO*/ |
|
|
2720 | # endif |
2377 | { |
2721 | { |
2378 | #if _WIN32 |
2722 | # if _WIN32 |
2379 | signal (w->signum, ev_sighandler); |
2723 | signal (w->signum, ev_sighandler); |
2380 | #else |
2724 | # else |
2381 | struct sigaction sa; |
2725 | struct sigaction sa; |
|
|
2726 | |
|
|
2727 | evpipe_init (EV_A); |
|
|
2728 | |
2382 | sa.sa_handler = ev_sighandler; |
2729 | sa.sa_handler = ev_sighandler; |
2383 | sigfillset (&sa.sa_mask); |
2730 | sigfillset (&sa.sa_mask); |
2384 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2731 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2385 | sigaction (w->signum, &sa, 0); |
2732 | sigaction (w->signum, &sa, 0); |
|
|
2733 | |
|
|
2734 | sigemptyset (&sa.sa_mask); |
|
|
2735 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2736 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2386 | #endif |
2737 | #endif |
2387 | } |
2738 | } |
2388 | |
2739 | |
2389 | EV_FREQUENT_CHECK; |
2740 | EV_FREQUENT_CHECK; |
2390 | } |
2741 | } |
2391 | |
2742 | |
2392 | void noinline |
2743 | void noinline |
… | |
… | |
2400 | |
2751 | |
2401 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2752 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2402 | ev_stop (EV_A_ (W)w); |
2753 | ev_stop (EV_A_ (W)w); |
2403 | |
2754 | |
2404 | if (!signals [w->signum - 1].head) |
2755 | if (!signals [w->signum - 1].head) |
|
|
2756 | { |
|
|
2757 | #if EV_MULTIPLICITY |
|
|
2758 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2759 | #endif |
|
|
2760 | #if EV_USE_SIGNALFD |
|
|
2761 | if (sigfd >= 0) |
|
|
2762 | { |
|
|
2763 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2764 | sigdelset (&sigfd_set, w->signum); |
|
|
2765 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2766 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2767 | /*TODO: maybe unblock signal? */ |
|
|
2768 | } |
|
|
2769 | else |
|
|
2770 | #endif |
2405 | signal (w->signum, SIG_DFL); |
2771 | signal (w->signum, SIG_DFL); |
|
|
2772 | } |
2406 | |
2773 | |
2407 | EV_FREQUENT_CHECK; |
2774 | EV_FREQUENT_CHECK; |
2408 | } |
2775 | } |
2409 | |
2776 | |
2410 | void |
2777 | void |
2411 | ev_child_start (EV_P_ ev_child *w) |
2778 | ev_child_start (EV_P_ ev_child *w) |
2412 | { |
2779 | { |
2413 | #if EV_MULTIPLICITY |
2780 | #if EV_MULTIPLICITY |
2414 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2781 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2415 | #endif |
2782 | #endif |
2416 | if (expect_false (ev_is_active (w))) |
2783 | if (expect_false (ev_is_active (w))) |
2417 | return; |
2784 | return; |
2418 | |
2785 | |
2419 | EV_FREQUENT_CHECK; |
2786 | EV_FREQUENT_CHECK; |
… | |
… | |
2571 | |
2938 | |
2572 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2939 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2573 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2940 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2574 | } |
2941 | } |
2575 | |
2942 | |
2576 | void inline_size |
2943 | inline_size void |
2577 | check_2625 (EV_P) |
2944 | check_2625 (EV_P) |
2578 | { |
2945 | { |
2579 | /* kernels < 2.6.25 are borked |
2946 | /* kernels < 2.6.25 are borked |
2580 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2947 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2581 | */ |
2948 | */ |
… | |
… | |
2594 | return; |
2961 | return; |
2595 | |
2962 | |
2596 | fs_2625 = 1; |
2963 | fs_2625 = 1; |
2597 | } |
2964 | } |
2598 | |
2965 | |
2599 | void inline_size |
2966 | inline_size void |
2600 | infy_init (EV_P) |
2967 | infy_init (EV_P) |
2601 | { |
2968 | { |
2602 | if (fs_fd != -2) |
2969 | if (fs_fd != -2) |
2603 | return; |
2970 | return; |
2604 | |
2971 | |
… | |
… | |
2614 | ev_set_priority (&fs_w, EV_MAXPRI); |
2981 | ev_set_priority (&fs_w, EV_MAXPRI); |
2615 | ev_io_start (EV_A_ &fs_w); |
2982 | ev_io_start (EV_A_ &fs_w); |
2616 | } |
2983 | } |
2617 | } |
2984 | } |
2618 | |
2985 | |
2619 | void inline_size |
2986 | inline_size void |
2620 | infy_fork (EV_P) |
2987 | infy_fork (EV_P) |
2621 | { |
2988 | { |
2622 | int slot; |
2989 | int slot; |
2623 | |
2990 | |
2624 | if (fs_fd < 0) |
2991 | if (fs_fd < 0) |
… | |
… | |
2890 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3257 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2891 | { |
3258 | { |
2892 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3259 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2893 | |
3260 | |
2894 | { |
3261 | { |
2895 | struct ev_loop *loop = w->other; |
3262 | EV_P = w->other; |
2896 | |
3263 | |
2897 | while (fdchangecnt) |
3264 | while (fdchangecnt) |
2898 | { |
3265 | { |
2899 | fd_reify (EV_A); |
3266 | fd_reify (EV_A); |
2900 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3267 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
2905 | static void |
3272 | static void |
2906 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3273 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2907 | { |
3274 | { |
2908 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3275 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2909 | |
3276 | |
|
|
3277 | ev_embed_stop (EV_A_ w); |
|
|
3278 | |
2910 | { |
3279 | { |
2911 | struct ev_loop *loop = w->other; |
3280 | EV_P = w->other; |
2912 | |
3281 | |
2913 | ev_loop_fork (EV_A); |
3282 | ev_loop_fork (EV_A); |
|
|
3283 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2914 | } |
3284 | } |
|
|
3285 | |
|
|
3286 | ev_embed_start (EV_A_ w); |
2915 | } |
3287 | } |
2916 | |
3288 | |
2917 | #if 0 |
3289 | #if 0 |
2918 | static void |
3290 | static void |
2919 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3291 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2927 | { |
3299 | { |
2928 | if (expect_false (ev_is_active (w))) |
3300 | if (expect_false (ev_is_active (w))) |
2929 | return; |
3301 | return; |
2930 | |
3302 | |
2931 | { |
3303 | { |
2932 | struct ev_loop *loop = w->other; |
3304 | EV_P = w->other; |
2933 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3305 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2934 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3306 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2935 | } |
3307 | } |
2936 | |
3308 | |
2937 | EV_FREQUENT_CHECK; |
3309 | EV_FREQUENT_CHECK; |
2938 | |
3310 | |
… | |
… | |
3049 | |
3421 | |
3050 | void |
3422 | void |
3051 | ev_async_send (EV_P_ ev_async *w) |
3423 | ev_async_send (EV_P_ ev_async *w) |
3052 | { |
3424 | { |
3053 | w->sent = 1; |
3425 | w->sent = 1; |
3054 | evpipe_write (EV_A_ &gotasync); |
3426 | evpipe_write (EV_A_ &async_pending); |
3055 | } |
3427 | } |
3056 | #endif |
3428 | #endif |
3057 | |
3429 | |
3058 | /*****************************************************************************/ |
3430 | /*****************************************************************************/ |
3059 | |
3431 | |
… | |
… | |
3121 | ev_timer_set (&once->to, timeout, 0.); |
3493 | ev_timer_set (&once->to, timeout, 0.); |
3122 | ev_timer_start (EV_A_ &once->to); |
3494 | ev_timer_start (EV_A_ &once->to); |
3123 | } |
3495 | } |
3124 | } |
3496 | } |
3125 | |
3497 | |
|
|
3498 | /*****************************************************************************/ |
|
|
3499 | |
|
|
3500 | #if EV_WALK_ENABLE |
|
|
3501 | void |
|
|
3502 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3503 | { |
|
|
3504 | int i, j; |
|
|
3505 | ev_watcher_list *wl, *wn; |
|
|
3506 | |
|
|
3507 | if (types & (EV_IO | EV_EMBED)) |
|
|
3508 | for (i = 0; i < anfdmax; ++i) |
|
|
3509 | for (wl = anfds [i].head; wl; ) |
|
|
3510 | { |
|
|
3511 | wn = wl->next; |
|
|
3512 | |
|
|
3513 | #if EV_EMBED_ENABLE |
|
|
3514 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3515 | { |
|
|
3516 | if (types & EV_EMBED) |
|
|
3517 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3518 | } |
|
|
3519 | else |
|
|
3520 | #endif |
|
|
3521 | #if EV_USE_INOTIFY |
|
|
3522 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3523 | ; |
|
|
3524 | else |
|
|
3525 | #endif |
|
|
3526 | if ((ev_io *)wl != &pipe_w) |
|
|
3527 | if (types & EV_IO) |
|
|
3528 | cb (EV_A_ EV_IO, wl); |
|
|
3529 | |
|
|
3530 | wl = wn; |
|
|
3531 | } |
|
|
3532 | |
|
|
3533 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3534 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3535 | #if EV_STAT_ENABLE |
|
|
3536 | /*TODO: timer is not always active*/ |
|
|
3537 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3538 | { |
|
|
3539 | if (types & EV_STAT) |
|
|
3540 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3541 | } |
|
|
3542 | else |
|
|
3543 | #endif |
|
|
3544 | if (types & EV_TIMER) |
|
|
3545 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3546 | |
|
|
3547 | #if EV_PERIODIC_ENABLE |
|
|
3548 | if (types & EV_PERIODIC) |
|
|
3549 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3550 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3551 | #endif |
|
|
3552 | |
|
|
3553 | #if EV_IDLE_ENABLE |
|
|
3554 | if (types & EV_IDLE) |
|
|
3555 | for (j = NUMPRI; i--; ) |
|
|
3556 | for (i = idlecnt [j]; i--; ) |
|
|
3557 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3558 | #endif |
|
|
3559 | |
|
|
3560 | #if EV_FORK_ENABLE |
|
|
3561 | if (types & EV_FORK) |
|
|
3562 | for (i = forkcnt; i--; ) |
|
|
3563 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3564 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3565 | #endif |
|
|
3566 | |
|
|
3567 | #if EV_ASYNC_ENABLE |
|
|
3568 | if (types & EV_ASYNC) |
|
|
3569 | for (i = asynccnt; i--; ) |
|
|
3570 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3571 | #endif |
|
|
3572 | |
|
|
3573 | if (types & EV_PREPARE) |
|
|
3574 | for (i = preparecnt; i--; ) |
|
|
3575 | #if EV_EMBED_ENABLE |
|
|
3576 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3577 | #endif |
|
|
3578 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3579 | |
|
|
3580 | if (types & EV_CHECK) |
|
|
3581 | for (i = checkcnt; i--; ) |
|
|
3582 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3583 | |
|
|
3584 | if (types & EV_SIGNAL) |
|
|
3585 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3586 | for (wl = signals [i].head; wl; ) |
|
|
3587 | { |
|
|
3588 | wn = wl->next; |
|
|
3589 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3590 | wl = wn; |
|
|
3591 | } |
|
|
3592 | |
|
|
3593 | if (types & EV_CHILD) |
|
|
3594 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3595 | for (wl = childs [i]; wl; ) |
|
|
3596 | { |
|
|
3597 | wn = wl->next; |
|
|
3598 | cb (EV_A_ EV_CHILD, wl); |
|
|
3599 | wl = wn; |
|
|
3600 | } |
|
|
3601 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3602 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3603 | } |
|
|
3604 | #endif |
|
|
3605 | |
3126 | #if EV_MULTIPLICITY |
3606 | #if EV_MULTIPLICITY |
3127 | #include "ev_wrap.h" |
3607 | #include "ev_wrap.h" |
3128 | #endif |
3608 | #endif |
3129 | |
3609 | |
3130 | #ifdef __cplusplus |
3610 | #ifdef __cplusplus |