… | |
… | |
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 |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
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 |
… | |
… | |
108 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
109 | # endif |
111 | # endif |
110 | # endif |
112 | # endif |
111 | |
113 | |
112 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
115 | # else |
117 | # else |
116 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
117 | # endif |
119 | # endif |
118 | # endif |
120 | # 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 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
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 |
… | |
… | |
143 | |
153 | |
144 | #endif |
154 | #endif |
145 | |
155 | |
146 | #include <math.h> |
156 | #include <math.h> |
147 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
148 | #include <fcntl.h> |
159 | #include <fcntl.h> |
149 | #include <stddef.h> |
160 | #include <stddef.h> |
150 | |
161 | |
151 | #include <stdio.h> |
162 | #include <stdio.h> |
152 | |
163 | |
… | |
… | |
176 | # endif |
187 | # endif |
177 | #endif |
188 | #endif |
178 | |
189 | |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
180 | |
191 | |
|
|
192 | /* try to deduce the maximum number of signals on this platform */ |
|
|
193 | #if defined (EV_NSIG) |
|
|
194 | /* use what's provided */ |
|
|
195 | #elif defined (NSIG) |
|
|
196 | # define EV_NSIG (NSIG) |
|
|
197 | #elif defined(_NSIG) |
|
|
198 | # define EV_NSIG (_NSIG) |
|
|
199 | #elif defined (SIGMAX) |
|
|
200 | # define EV_NSIG (SIGMAX+1) |
|
|
201 | #elif defined (SIG_MAX) |
|
|
202 | # define EV_NSIG (SIG_MAX+1) |
|
|
203 | #elif defined (_SIG_MAX) |
|
|
204 | # define EV_NSIG (_SIG_MAX+1) |
|
|
205 | #elif defined (MAXSIG) |
|
|
206 | # define EV_NSIG (MAXSIG+1) |
|
|
207 | #elif defined (MAX_SIG) |
|
|
208 | # define EV_NSIG (MAX_SIG+1) |
|
|
209 | #elif defined (SIGARRAYSIZE) |
|
|
210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
|
211 | #elif defined (_sys_nsig) |
|
|
212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
213 | #else |
|
|
214 | # error "unable to find value for NSIG, please report" |
|
|
215 | /* to make it compile regardless, just remove the above line */ |
|
|
216 | # define EV_NSIG 65 |
|
|
217 | #endif |
|
|
218 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
219 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
220 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
221 | # define EV_USE_CLOCK_SYSCALL 1 |
184 | # else |
222 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
223 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
264 | # else |
302 | # else |
265 | # define EV_USE_EVENTFD 0 |
303 | # define EV_USE_EVENTFD 0 |
266 | # endif |
304 | # endif |
267 | #endif |
305 | #endif |
268 | |
306 | |
|
|
307 | #ifndef EV_USE_SIGNALFD |
|
|
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
309 | # define EV_USE_SIGNALFD 1 |
|
|
310 | # else |
|
|
311 | # define EV_USE_SIGNALFD 0 |
|
|
312 | # endif |
|
|
313 | #endif |
|
|
314 | |
269 | #if 0 /* debugging */ |
315 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
316 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
317 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
318 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
319 | #endif |
… | |
… | |
282 | |
328 | |
283 | #ifndef EV_HEAP_CACHE_AT |
329 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
285 | #endif |
331 | #endif |
286 | |
332 | |
|
|
333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
334 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
335 | #if EV_USE_CLOCK_SYSCALL |
|
|
336 | # include <syscall.h> |
|
|
337 | # ifdef SYS_clock_gettime |
|
|
338 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
339 | # undef EV_USE_MONOTONIC |
|
|
340 | # define EV_USE_MONOTONIC 1 |
|
|
341 | # else |
|
|
342 | # undef EV_USE_CLOCK_SYSCALL |
|
|
343 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
344 | # endif |
|
|
345 | #endif |
|
|
346 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
348 | |
|
|
349 | #ifdef _AIX |
|
|
350 | /* AIX has a completely broken poll.h header */ |
|
|
351 | # undef EV_USE_POLL |
|
|
352 | # define EV_USE_POLL 0 |
|
|
353 | #endif |
288 | |
354 | |
289 | #ifndef CLOCK_MONOTONIC |
355 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
356 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
357 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
358 | #endif |
… | |
… | |
320 | |
386 | |
321 | #if EV_SELECT_IS_WINSOCKET |
387 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
388 | # include <winsock.h> |
323 | #endif |
389 | #endif |
324 | |
390 | |
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. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
391 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
392 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
393 | # include <stdint.h> |
|
|
394 | # ifndef EFD_NONBLOCK |
|
|
395 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
396 | # endif |
|
|
397 | # ifndef EFD_CLOEXEC |
|
|
398 | # ifdef O_CLOEXEC |
|
|
399 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
400 | # else |
|
|
401 | # define EFD_CLOEXEC 02000000 |
|
|
402 | # endif |
|
|
403 | # endif |
337 | # ifdef __cplusplus |
404 | # ifdef __cplusplus |
338 | extern "C" { |
405 | extern "C" { |
339 | # endif |
406 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
407 | int eventfd (unsigned int initval, int flags); |
341 | # ifdef __cplusplus |
408 | # ifdef __cplusplus |
342 | } |
409 | } |
343 | # endif |
410 | # endif |
344 | #endif |
411 | #endif |
|
|
412 | |
|
|
413 | #if EV_USE_SIGNALFD |
|
|
414 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
415 | # include <stdint.h> |
|
|
416 | # ifndef SFD_NONBLOCK |
|
|
417 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
418 | # endif |
|
|
419 | # ifndef SFD_CLOEXEC |
|
|
420 | # ifdef O_CLOEXEC |
|
|
421 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
422 | # else |
|
|
423 | # define SFD_CLOEXEC 02000000 |
|
|
424 | # endif |
|
|
425 | # endif |
|
|
426 | # ifdef __cplusplus |
|
|
427 | extern "C" { |
|
|
428 | # endif |
|
|
429 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
430 | |
|
|
431 | struct signalfd_siginfo |
|
|
432 | { |
|
|
433 | uint32_t ssi_signo; |
|
|
434 | char pad[128 - sizeof (uint32_t)]; |
|
|
435 | }; |
|
|
436 | # ifdef __cplusplus |
|
|
437 | } |
|
|
438 | # endif |
|
|
439 | #endif |
|
|
440 | |
345 | |
441 | |
346 | /**/ |
442 | /**/ |
347 | |
443 | |
348 | #if EV_VERIFY >= 3 |
444 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
445 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
361 | */ |
457 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
458 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
363 | |
459 | |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
460 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
461 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
367 | |
462 | |
368 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
370 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
371 | #else |
466 | #else |
… | |
… | |
384 | # define inline_speed static noinline |
479 | # define inline_speed static noinline |
385 | #else |
480 | #else |
386 | # define inline_speed static inline |
481 | # define inline_speed static inline |
387 | #endif |
482 | #endif |
388 | |
483 | |
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
|
|
488 | #else |
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
391 | |
491 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
494 | |
395 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
… | |
… | |
407 | |
507 | |
408 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
410 | #endif |
510 | #endif |
411 | |
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
|
|
521 | |
412 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
413 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
414 | #endif |
524 | #endif |
415 | |
525 | |
416 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
588 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
589 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
590 | |
481 | /*****************************************************************************/ |
591 | /*****************************************************************************/ |
482 | |
592 | |
|
|
593 | /* set in reify when reification needed */ |
|
|
594 | #define EV_ANFD_REIFY 1 |
|
|
595 | |
|
|
596 | /* file descriptor info structure */ |
483 | typedef struct |
597 | typedef struct |
484 | { |
598 | { |
485 | WL head; |
599 | WL head; |
486 | unsigned char events; |
600 | unsigned char events; /* the events watched for */ |
487 | unsigned char reify; |
601 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
602 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
489 | unsigned char unused; |
603 | unsigned char unused; |
490 | #if EV_USE_EPOLL |
604 | #if EV_USE_EPOLL |
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
605 | unsigned int egen; /* generation counter to counter epoll bugs */ |
492 | #endif |
606 | #endif |
493 | #if EV_SELECT_IS_WINSOCKET |
607 | #if EV_SELECT_IS_WINSOCKET |
494 | SOCKET handle; |
608 | SOCKET handle; |
495 | #endif |
609 | #endif |
496 | } ANFD; |
610 | } ANFD; |
497 | |
611 | |
|
|
612 | /* stores the pending event set for a given watcher */ |
498 | typedef struct |
613 | typedef struct |
499 | { |
614 | { |
500 | W w; |
615 | W w; |
501 | int events; |
616 | int events; /* the pending event set for the given watcher */ |
502 | } ANPENDING; |
617 | } ANPENDING; |
503 | |
618 | |
504 | #if EV_USE_INOTIFY |
619 | #if EV_USE_INOTIFY |
505 | /* hash table entry per inotify-id */ |
620 | /* hash table entry per inotify-id */ |
506 | typedef struct |
621 | typedef struct |
… | |
… | |
509 | } ANFS; |
624 | } ANFS; |
510 | #endif |
625 | #endif |
511 | |
626 | |
512 | /* Heap Entry */ |
627 | /* Heap Entry */ |
513 | #if EV_HEAP_CACHE_AT |
628 | #if EV_HEAP_CACHE_AT |
|
|
629 | /* a heap element */ |
514 | typedef struct { |
630 | typedef struct { |
515 | ev_tstamp at; |
631 | ev_tstamp at; |
516 | WT w; |
632 | WT w; |
517 | } ANHE; |
633 | } ANHE; |
518 | |
634 | |
519 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
635 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
520 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
636 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
521 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
637 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
522 | #else |
638 | #else |
|
|
639 | /* a heap element */ |
523 | typedef WT ANHE; |
640 | typedef WT ANHE; |
524 | |
641 | |
525 | #define ANHE_w(he) (he) |
642 | #define ANHE_w(he) (he) |
526 | #define ANHE_at(he) (he)->at |
643 | #define ANHE_at(he) (he)->at |
527 | #define ANHE_at_cache(he) |
644 | #define ANHE_at_cache(he) |
… | |
… | |
551 | |
668 | |
552 | static int ev_default_loop_ptr; |
669 | static int ev_default_loop_ptr; |
553 | |
670 | |
554 | #endif |
671 | #endif |
555 | |
672 | |
|
|
673 | #if EV_MINIMAL < 2 |
|
|
674 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
675 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
676 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
677 | #else |
|
|
678 | # define EV_RELEASE_CB (void)0 |
|
|
679 | # define EV_ACQUIRE_CB (void)0 |
|
|
680 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
681 | #endif |
|
|
682 | |
|
|
683 | #define EVUNLOOP_RECURSE 0x80 |
|
|
684 | |
556 | /*****************************************************************************/ |
685 | /*****************************************************************************/ |
557 | |
686 | |
|
|
687 | #ifndef EV_HAVE_EV_TIME |
558 | ev_tstamp |
688 | ev_tstamp |
559 | ev_time (void) |
689 | ev_time (void) |
560 | { |
690 | { |
561 | #if EV_USE_REALTIME |
691 | #if EV_USE_REALTIME |
562 | if (expect_true (have_realtime)) |
692 | if (expect_true (have_realtime)) |
… | |
… | |
569 | |
699 | |
570 | struct timeval tv; |
700 | struct timeval tv; |
571 | gettimeofday (&tv, 0); |
701 | gettimeofday (&tv, 0); |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
702 | return tv.tv_sec + tv.tv_usec * 1e-6; |
573 | } |
703 | } |
|
|
704 | #endif |
574 | |
705 | |
575 | inline_size ev_tstamp |
706 | inline_size ev_tstamp |
576 | get_clock (void) |
707 | get_clock (void) |
577 | { |
708 | { |
578 | #if EV_USE_MONOTONIC |
709 | #if EV_USE_MONOTONIC |
… | |
… | |
614 | |
745 | |
615 | tv.tv_sec = (time_t)delay; |
746 | tv.tv_sec = (time_t)delay; |
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
747 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
617 | |
748 | |
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
749 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
750 | /* something not guaranteed by newer posix versions, but guaranteed */ |
620 | /* by older ones */ |
751 | /* by older ones */ |
621 | select (0, 0, 0, 0, &tv); |
752 | select (0, 0, 0, 0, &tv); |
622 | #endif |
753 | #endif |
623 | } |
754 | } |
624 | } |
755 | } |
625 | |
756 | |
626 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
627 | |
758 | |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
759 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
629 | |
760 | |
|
|
761 | /* find a suitable new size for the given array, */ |
|
|
762 | /* hopefully by rounding to a ncie-to-malloc size */ |
630 | inline_size int |
763 | inline_size int |
631 | array_nextsize (int elem, int cur, int cnt) |
764 | array_nextsize (int elem, int cur, int cnt) |
632 | { |
765 | { |
633 | int ncur = cur + 1; |
766 | int ncur = cur + 1; |
634 | |
767 | |
… | |
… | |
680 | #define array_free(stem, idx) \ |
813 | #define array_free(stem, idx) \ |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
814 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
682 | |
815 | |
683 | /*****************************************************************************/ |
816 | /*****************************************************************************/ |
684 | |
817 | |
|
|
818 | /* dummy callback for pending events */ |
|
|
819 | static void noinline |
|
|
820 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
821 | { |
|
|
822 | } |
|
|
823 | |
685 | void noinline |
824 | void noinline |
686 | ev_feed_event (EV_P_ void *w, int revents) |
825 | ev_feed_event (EV_P_ void *w, int revents) |
687 | { |
826 | { |
688 | W w_ = (W)w; |
827 | W w_ = (W)w; |
689 | int pri = ABSPRI (w_); |
828 | int pri = ABSPRI (w_); |
… | |
… | |
724 | } |
863 | } |
725 | |
864 | |
726 | /*****************************************************************************/ |
865 | /*****************************************************************************/ |
727 | |
866 | |
728 | inline_speed void |
867 | inline_speed void |
729 | fd_event (EV_P_ int fd, int revents) |
868 | fd_event_nc (EV_P_ int fd, int revents) |
730 | { |
869 | { |
731 | ANFD *anfd = anfds + fd; |
870 | ANFD *anfd = anfds + fd; |
732 | ev_io *w; |
871 | ev_io *w; |
733 | |
872 | |
734 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
873 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
738 | if (ev) |
877 | if (ev) |
739 | ev_feed_event (EV_A_ (W)w, ev); |
878 | ev_feed_event (EV_A_ (W)w, ev); |
740 | } |
879 | } |
741 | } |
880 | } |
742 | |
881 | |
|
|
882 | /* do not submit kernel events for fds that have reify set */ |
|
|
883 | /* because that means they changed while we were polling for new events */ |
|
|
884 | inline_speed void |
|
|
885 | fd_event (EV_P_ int fd, int revents) |
|
|
886 | { |
|
|
887 | ANFD *anfd = anfds + fd; |
|
|
888 | |
|
|
889 | if (expect_true (!anfd->reify)) |
|
|
890 | fd_event_nc (EV_A_ fd, revents); |
|
|
891 | } |
|
|
892 | |
743 | void |
893 | void |
744 | ev_feed_fd_event (EV_P_ int fd, int revents) |
894 | ev_feed_fd_event (EV_P_ int fd, int revents) |
745 | { |
895 | { |
746 | if (fd >= 0 && fd < anfdmax) |
896 | if (fd >= 0 && fd < anfdmax) |
747 | fd_event (EV_A_ fd, revents); |
897 | fd_event_nc (EV_A_ fd, revents); |
748 | } |
898 | } |
749 | |
899 | |
|
|
900 | /* make sure the external fd watch events are in-sync */ |
|
|
901 | /* with the kernel/libev internal state */ |
750 | inline_size void |
902 | inline_size void |
751 | fd_reify (EV_P) |
903 | fd_reify (EV_P) |
752 | { |
904 | { |
753 | int i; |
905 | int i; |
754 | |
906 | |
… | |
… | |
765 | |
917 | |
766 | #if EV_SELECT_IS_WINSOCKET |
918 | #if EV_SELECT_IS_WINSOCKET |
767 | if (events) |
919 | if (events) |
768 | { |
920 | { |
769 | unsigned long arg; |
921 | unsigned long arg; |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
922 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
772 | #else |
|
|
773 | anfd->handle = _get_osfhandle (fd); |
|
|
774 | #endif |
|
|
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
923 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
776 | } |
924 | } |
777 | #endif |
925 | #endif |
778 | |
926 | |
779 | { |
927 | { |
… | |
… | |
789 | } |
937 | } |
790 | |
938 | |
791 | fdchangecnt = 0; |
939 | fdchangecnt = 0; |
792 | } |
940 | } |
793 | |
941 | |
|
|
942 | /* something about the given fd changed */ |
794 | inline_size void |
943 | inline_size void |
795 | fd_change (EV_P_ int fd, int flags) |
944 | fd_change (EV_P_ int fd, int flags) |
796 | { |
945 | { |
797 | unsigned char reify = anfds [fd].reify; |
946 | unsigned char reify = anfds [fd].reify; |
798 | anfds [fd].reify |= flags; |
947 | anfds [fd].reify |= flags; |
… | |
… | |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
952 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
804 | fdchanges [fdchangecnt - 1] = fd; |
953 | fdchanges [fdchangecnt - 1] = fd; |
805 | } |
954 | } |
806 | } |
955 | } |
807 | |
956 | |
|
|
957 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
808 | inline_speed void |
958 | inline_speed void |
809 | fd_kill (EV_P_ int fd) |
959 | fd_kill (EV_P_ int fd) |
810 | { |
960 | { |
811 | ev_io *w; |
961 | ev_io *w; |
812 | |
962 | |
… | |
… | |
815 | ev_io_stop (EV_A_ w); |
965 | ev_io_stop (EV_A_ w); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
966 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
817 | } |
967 | } |
818 | } |
968 | } |
819 | |
969 | |
|
|
970 | /* check whether the given fd is atcually valid, for error recovery */ |
820 | inline_size int |
971 | inline_size int |
821 | fd_valid (int fd) |
972 | fd_valid (int fd) |
822 | { |
973 | { |
823 | #ifdef _WIN32 |
974 | #ifdef _WIN32 |
824 | return _get_osfhandle (fd) != -1; |
975 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
825 | #else |
976 | #else |
826 | return fcntl (fd, F_GETFD) != -1; |
977 | return fcntl (fd, F_GETFD) != -1; |
827 | #endif |
978 | #endif |
828 | } |
979 | } |
829 | |
980 | |
… | |
… | |
847 | |
998 | |
848 | for (fd = anfdmax; fd--; ) |
999 | for (fd = anfdmax; fd--; ) |
849 | if (anfds [fd].events) |
1000 | if (anfds [fd].events) |
850 | { |
1001 | { |
851 | fd_kill (EV_A_ fd); |
1002 | fd_kill (EV_A_ fd); |
852 | return; |
1003 | break; |
853 | } |
1004 | } |
854 | } |
1005 | } |
855 | |
1006 | |
856 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1007 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
857 | static void noinline |
1008 | static void noinline |
… | |
… | |
862 | for (fd = 0; fd < anfdmax; ++fd) |
1013 | for (fd = 0; fd < anfdmax; ++fd) |
863 | if (anfds [fd].events) |
1014 | if (anfds [fd].events) |
864 | { |
1015 | { |
865 | anfds [fd].events = 0; |
1016 | anfds [fd].events = 0; |
866 | anfds [fd].emask = 0; |
1017 | anfds [fd].emask = 0; |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1018 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
868 | } |
1019 | } |
869 | } |
1020 | } |
870 | |
1021 | |
871 | /*****************************************************************************/ |
1022 | /*****************************************************************************/ |
872 | |
1023 | |
… | |
… | |
947 | |
1098 | |
948 | for (;;) |
1099 | for (;;) |
949 | { |
1100 | { |
950 | int c = k << 1; |
1101 | int c = k << 1; |
951 | |
1102 | |
952 | if (c > N + HEAP0 - 1) |
1103 | if (c >= N + HEAP0) |
953 | break; |
1104 | break; |
954 | |
1105 | |
955 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1106 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
956 | ? 1 : 0; |
1107 | ? 1 : 0; |
957 | |
1108 | |
… | |
… | |
989 | |
1140 | |
990 | heap [k] = he; |
1141 | heap [k] = he; |
991 | ev_active (ANHE_w (he)) = k; |
1142 | ev_active (ANHE_w (he)) = k; |
992 | } |
1143 | } |
993 | |
1144 | |
|
|
1145 | /* move an element suitably so it is in a correct place */ |
994 | inline_size void |
1146 | inline_size void |
995 | adjustheap (ANHE *heap, int N, int k) |
1147 | adjustheap (ANHE *heap, int N, int k) |
996 | { |
1148 | { |
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1149 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
998 | upheap (heap, k); |
1150 | upheap (heap, k); |
999 | else |
1151 | else |
1000 | downheap (heap, N, k); |
1152 | downheap (heap, N, k); |
1001 | } |
1153 | } |
1002 | |
1154 | |
… | |
… | |
1012 | upheap (heap, i + HEAP0); |
1164 | upheap (heap, i + HEAP0); |
1013 | } |
1165 | } |
1014 | |
1166 | |
1015 | /*****************************************************************************/ |
1167 | /*****************************************************************************/ |
1016 | |
1168 | |
|
|
1169 | /* associate signal watchers to a signal signal */ |
1017 | typedef struct |
1170 | typedef struct |
1018 | { |
1171 | { |
|
|
1172 | EV_ATOMIC_T pending; |
|
|
1173 | #if EV_MULTIPLICITY |
|
|
1174 | EV_P; |
|
|
1175 | #endif |
1019 | WL head; |
1176 | WL head; |
1020 | EV_ATOMIC_T gotsig; |
|
|
1021 | } ANSIG; |
1177 | } ANSIG; |
1022 | |
1178 | |
1023 | static ANSIG *signals; |
1179 | static ANSIG signals [EV_NSIG - 1]; |
1024 | static int signalmax; |
|
|
1025 | |
|
|
1026 | static EV_ATOMIC_T gotsig; |
|
|
1027 | |
1180 | |
1028 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
1029 | |
1182 | |
|
|
1183 | /* used to prepare libev internal fd's */ |
|
|
1184 | /* this is not fork-safe */ |
1030 | inline_speed void |
1185 | inline_speed void |
1031 | fd_intern (int fd) |
1186 | fd_intern (int fd) |
1032 | { |
1187 | { |
1033 | #ifdef _WIN32 |
1188 | #ifdef _WIN32 |
1034 | unsigned long arg = 1; |
1189 | unsigned long arg = 1; |
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1190 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
1036 | #else |
1191 | #else |
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1192 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1193 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1039 | #endif |
1194 | #endif |
1040 | } |
1195 | } |
1041 | |
1196 | |
1042 | static void noinline |
1197 | static void noinline |
1043 | evpipe_init (EV_P) |
1198 | evpipe_init (EV_P) |
1044 | { |
1199 | { |
1045 | if (!ev_is_active (&pipeev)) |
1200 | if (!ev_is_active (&pipe_w)) |
1046 | { |
1201 | { |
1047 | #if EV_USE_EVENTFD |
1202 | #if EV_USE_EVENTFD |
|
|
1203 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1204 | if (evfd < 0 && errno == EINVAL) |
1048 | if ((evfd = eventfd (0, 0)) >= 0) |
1205 | evfd = eventfd (0, 0); |
|
|
1206 | |
|
|
1207 | if (evfd >= 0) |
1049 | { |
1208 | { |
1050 | evpipe [0] = -1; |
1209 | evpipe [0] = -1; |
1051 | fd_intern (evfd); |
1210 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1052 | ev_io_set (&pipeev, evfd, EV_READ); |
1211 | ev_io_set (&pipe_w, evfd, EV_READ); |
1053 | } |
1212 | } |
1054 | else |
1213 | else |
1055 | #endif |
1214 | #endif |
1056 | { |
1215 | { |
1057 | while (pipe (evpipe)) |
1216 | while (pipe (evpipe)) |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
1217 | ev_syserr ("(libev) error creating signal/async pipe"); |
1059 | |
1218 | |
1060 | fd_intern (evpipe [0]); |
1219 | fd_intern (evpipe [0]); |
1061 | fd_intern (evpipe [1]); |
1220 | fd_intern (evpipe [1]); |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1221 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1063 | } |
1222 | } |
1064 | |
1223 | |
1065 | ev_io_start (EV_A_ &pipeev); |
1224 | ev_io_start (EV_A_ &pipe_w); |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1225 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1067 | } |
1226 | } |
1068 | } |
1227 | } |
1069 | |
1228 | |
1070 | inline_size void |
1229 | inline_size void |
… | |
… | |
1088 | |
1247 | |
1089 | errno = old_errno; |
1248 | errno = old_errno; |
1090 | } |
1249 | } |
1091 | } |
1250 | } |
1092 | |
1251 | |
|
|
1252 | /* called whenever the libev signal pipe */ |
|
|
1253 | /* got some events (signal, async) */ |
1093 | static void |
1254 | static void |
1094 | pipecb (EV_P_ ev_io *iow, int revents) |
1255 | pipecb (EV_P_ ev_io *iow, int revents) |
1095 | { |
1256 | { |
|
|
1257 | int i; |
|
|
1258 | |
1096 | #if EV_USE_EVENTFD |
1259 | #if EV_USE_EVENTFD |
1097 | if (evfd >= 0) |
1260 | if (evfd >= 0) |
1098 | { |
1261 | { |
1099 | uint64_t counter; |
1262 | uint64_t counter; |
1100 | read (evfd, &counter, sizeof (uint64_t)); |
1263 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1104 | { |
1267 | { |
1105 | char dummy; |
1268 | char dummy; |
1106 | read (evpipe [0], &dummy, 1); |
1269 | read (evpipe [0], &dummy, 1); |
1107 | } |
1270 | } |
1108 | |
1271 | |
1109 | if (gotsig && ev_is_default_loop (EV_A)) |
1272 | if (sig_pending) |
1110 | { |
1273 | { |
1111 | int signum; |
1274 | sig_pending = 0; |
1112 | gotsig = 0; |
|
|
1113 | |
1275 | |
1114 | for (signum = signalmax; signum--; ) |
1276 | for (i = EV_NSIG - 1; i--; ) |
1115 | if (signals [signum].gotsig) |
1277 | if (expect_false (signals [i].pending)) |
1116 | ev_feed_signal_event (EV_A_ signum + 1); |
1278 | ev_feed_signal_event (EV_A_ i + 1); |
1117 | } |
1279 | } |
1118 | |
1280 | |
1119 | #if EV_ASYNC_ENABLE |
1281 | #if EV_ASYNC_ENABLE |
1120 | if (gotasync) |
1282 | if (async_pending) |
1121 | { |
1283 | { |
1122 | int i; |
1284 | async_pending = 0; |
1123 | gotasync = 0; |
|
|
1124 | |
1285 | |
1125 | for (i = asynccnt; i--; ) |
1286 | for (i = asynccnt; i--; ) |
1126 | if (asyncs [i]->sent) |
1287 | if (asyncs [i]->sent) |
1127 | { |
1288 | { |
1128 | asyncs [i]->sent = 0; |
1289 | asyncs [i]->sent = 0; |
… | |
… | |
1136 | |
1297 | |
1137 | static void |
1298 | static void |
1138 | ev_sighandler (int signum) |
1299 | ev_sighandler (int signum) |
1139 | { |
1300 | { |
1140 | #if EV_MULTIPLICITY |
1301 | #if EV_MULTIPLICITY |
1141 | struct ev_loop *loop = &default_loop_struct; |
1302 | EV_P = signals [signum - 1].loop; |
1142 | #endif |
1303 | #endif |
1143 | |
1304 | |
1144 | #if _WIN32 |
1305 | #ifdef _WIN32 |
1145 | signal (signum, ev_sighandler); |
1306 | signal (signum, ev_sighandler); |
1146 | #endif |
1307 | #endif |
1147 | |
1308 | |
1148 | signals [signum - 1].gotsig = 1; |
1309 | signals [signum - 1].pending = 1; |
1149 | evpipe_write (EV_A_ &gotsig); |
1310 | evpipe_write (EV_A_ &sig_pending); |
1150 | } |
1311 | } |
1151 | |
1312 | |
1152 | void noinline |
1313 | void noinline |
1153 | ev_feed_signal_event (EV_P_ int signum) |
1314 | ev_feed_signal_event (EV_P_ int signum) |
1154 | { |
1315 | { |
1155 | WL w; |
1316 | WL w; |
1156 | |
1317 | |
|
|
1318 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1319 | return; |
|
|
1320 | |
|
|
1321 | --signum; |
|
|
1322 | |
1157 | #if EV_MULTIPLICITY |
1323 | #if EV_MULTIPLICITY |
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1324 | /* it is permissible to try to feed a signal to the wrong loop */ |
1159 | #endif |
1325 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1160 | |
1326 | |
1161 | --signum; |
1327 | if (expect_false (signals [signum].loop != EV_A)) |
1162 | |
|
|
1163 | if (signum < 0 || signum >= signalmax) |
|
|
1164 | return; |
1328 | return; |
|
|
1329 | #endif |
1165 | |
1330 | |
1166 | signals [signum].gotsig = 0; |
1331 | signals [signum].pending = 0; |
1167 | |
1332 | |
1168 | for (w = signals [signum].head; w; w = w->next) |
1333 | for (w = signals [signum].head; w; w = w->next) |
1169 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1334 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1170 | } |
1335 | } |
1171 | |
1336 | |
|
|
1337 | #if EV_USE_SIGNALFD |
|
|
1338 | static void |
|
|
1339 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1340 | { |
|
|
1341 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1342 | |
|
|
1343 | for (;;) |
|
|
1344 | { |
|
|
1345 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1346 | |
|
|
1347 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1348 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1349 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1350 | |
|
|
1351 | if (res < (ssize_t)sizeof (si)) |
|
|
1352 | break; |
|
|
1353 | } |
|
|
1354 | } |
|
|
1355 | #endif |
|
|
1356 | |
1172 | /*****************************************************************************/ |
1357 | /*****************************************************************************/ |
1173 | |
1358 | |
1174 | static WL childs [EV_PID_HASHSIZE]; |
1359 | static WL childs [EV_PID_HASHSIZE]; |
1175 | |
1360 | |
1176 | #ifndef _WIN32 |
1361 | #ifndef _WIN32 |
… | |
… | |
1179 | |
1364 | |
1180 | #ifndef WIFCONTINUED |
1365 | #ifndef WIFCONTINUED |
1181 | # define WIFCONTINUED(status) 0 |
1366 | # define WIFCONTINUED(status) 0 |
1182 | #endif |
1367 | #endif |
1183 | |
1368 | |
|
|
1369 | /* handle a single child status event */ |
1184 | inline_speed void |
1370 | inline_speed void |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
1371 | child_reap (EV_P_ int chain, int pid, int status) |
1186 | { |
1372 | { |
1187 | ev_child *w; |
1373 | ev_child *w; |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1374 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
… | |
… | |
1202 | |
1388 | |
1203 | #ifndef WCONTINUED |
1389 | #ifndef WCONTINUED |
1204 | # define WCONTINUED 0 |
1390 | # define WCONTINUED 0 |
1205 | #endif |
1391 | #endif |
1206 | |
1392 | |
|
|
1393 | /* called on sigchld etc., calls waitpid */ |
1207 | static void |
1394 | static void |
1208 | childcb (EV_P_ ev_signal *sw, int revents) |
1395 | childcb (EV_P_ ev_signal *sw, int revents) |
1209 | { |
1396 | { |
1210 | int pid, status; |
1397 | int pid, status; |
1211 | |
1398 | |
… | |
… | |
1318 | ev_backend (EV_P) |
1505 | ev_backend (EV_P) |
1319 | { |
1506 | { |
1320 | return backend; |
1507 | return backend; |
1321 | } |
1508 | } |
1322 | |
1509 | |
|
|
1510 | #if EV_MINIMAL < 2 |
1323 | unsigned int |
1511 | unsigned int |
1324 | ev_loop_count (EV_P) |
1512 | ev_loop_count (EV_P) |
1325 | { |
1513 | { |
1326 | return loop_count; |
1514 | return loop_count; |
1327 | } |
1515 | } |
1328 | |
1516 | |
|
|
1517 | unsigned int |
|
|
1518 | ev_loop_depth (EV_P) |
|
|
1519 | { |
|
|
1520 | return loop_depth; |
|
|
1521 | } |
|
|
1522 | |
1329 | void |
1523 | void |
1330 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1524 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1331 | { |
1525 | { |
1332 | io_blocktime = interval; |
1526 | io_blocktime = interval; |
1333 | } |
1527 | } |
… | |
… | |
1336 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1530 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1337 | { |
1531 | { |
1338 | timeout_blocktime = interval; |
1532 | timeout_blocktime = interval; |
1339 | } |
1533 | } |
1340 | |
1534 | |
|
|
1535 | void |
|
|
1536 | ev_set_userdata (EV_P_ void *data) |
|
|
1537 | { |
|
|
1538 | userdata = data; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | void * |
|
|
1542 | ev_userdata (EV_P) |
|
|
1543 | { |
|
|
1544 | return userdata; |
|
|
1545 | } |
|
|
1546 | |
|
|
1547 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1548 | { |
|
|
1549 | invoke_cb = invoke_pending_cb; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1553 | { |
|
|
1554 | release_cb = release; |
|
|
1555 | acquire_cb = acquire; |
|
|
1556 | } |
|
|
1557 | #endif |
|
|
1558 | |
|
|
1559 | /* initialise a loop structure, must be zero-initialised */ |
1341 | static void noinline |
1560 | static void noinline |
1342 | loop_init (EV_P_ unsigned int flags) |
1561 | loop_init (EV_P_ unsigned int flags) |
1343 | { |
1562 | { |
1344 | if (!backend) |
1563 | if (!backend) |
1345 | { |
1564 | { |
… | |
… | |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1580 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1362 | have_monotonic = 1; |
1581 | have_monotonic = 1; |
1363 | } |
1582 | } |
1364 | #endif |
1583 | #endif |
1365 | |
1584 | |
|
|
1585 | /* pid check not overridable via env */ |
|
|
1586 | #ifndef _WIN32 |
|
|
1587 | if (flags & EVFLAG_FORKCHECK) |
|
|
1588 | curpid = getpid (); |
|
|
1589 | #endif |
|
|
1590 | |
|
|
1591 | if (!(flags & EVFLAG_NOENV) |
|
|
1592 | && !enable_secure () |
|
|
1593 | && getenv ("LIBEV_FLAGS")) |
|
|
1594 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1595 | |
1366 | ev_rt_now = ev_time (); |
1596 | ev_rt_now = ev_time (); |
1367 | mn_now = get_clock (); |
1597 | mn_now = get_clock (); |
1368 | now_floor = mn_now; |
1598 | now_floor = mn_now; |
1369 | rtmn_diff = ev_rt_now - mn_now; |
1599 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1600 | #if EV_MINIMAL < 2 |
|
|
1601 | invoke_cb = ev_invoke_pending; |
|
|
1602 | #endif |
1370 | |
1603 | |
1371 | io_blocktime = 0.; |
1604 | io_blocktime = 0.; |
1372 | timeout_blocktime = 0.; |
1605 | timeout_blocktime = 0.; |
1373 | backend = 0; |
1606 | backend = 0; |
1374 | backend_fd = -1; |
1607 | backend_fd = -1; |
1375 | gotasync = 0; |
1608 | sig_pending = 0; |
|
|
1609 | #if EV_ASYNC_ENABLE |
|
|
1610 | async_pending = 0; |
|
|
1611 | #endif |
1376 | #if EV_USE_INOTIFY |
1612 | #if EV_USE_INOTIFY |
1377 | fs_fd = -2; |
1613 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1378 | #endif |
1614 | #endif |
1379 | |
1615 | #if EV_USE_SIGNALFD |
1380 | /* pid check not overridable via env */ |
1616 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1381 | #ifndef _WIN32 |
|
|
1382 | if (flags & EVFLAG_FORKCHECK) |
|
|
1383 | curpid = getpid (); |
|
|
1384 | #endif |
1617 | #endif |
1385 | |
|
|
1386 | if (!(flags & EVFLAG_NOENV) |
|
|
1387 | && !enable_secure () |
|
|
1388 | && getenv ("LIBEV_FLAGS")) |
|
|
1389 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1390 | |
1618 | |
1391 | if (!(flags & 0x0000ffffU)) |
1619 | if (!(flags & 0x0000ffffU)) |
1392 | flags |= ev_recommended_backends (); |
1620 | flags |= ev_recommended_backends (); |
1393 | |
1621 | |
1394 | #if EV_USE_PORT |
1622 | #if EV_USE_PORT |
… | |
… | |
1405 | #endif |
1633 | #endif |
1406 | #if EV_USE_SELECT |
1634 | #if EV_USE_SELECT |
1407 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1635 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1408 | #endif |
1636 | #endif |
1409 | |
1637 | |
|
|
1638 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1639 | |
1410 | ev_init (&pipeev, pipecb); |
1640 | ev_init (&pipe_w, pipecb); |
1411 | ev_set_priority (&pipeev, EV_MAXPRI); |
1641 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1412 | } |
1642 | } |
1413 | } |
1643 | } |
1414 | |
1644 | |
|
|
1645 | /* free up a loop structure */ |
1415 | static void noinline |
1646 | static void noinline |
1416 | loop_destroy (EV_P) |
1647 | loop_destroy (EV_P) |
1417 | { |
1648 | { |
1418 | int i; |
1649 | int i; |
1419 | |
1650 | |
1420 | if (ev_is_active (&pipeev)) |
1651 | if (ev_is_active (&pipe_w)) |
1421 | { |
1652 | { |
1422 | ev_ref (EV_A); /* signal watcher */ |
1653 | /*ev_ref (EV_A);*/ |
1423 | ev_io_stop (EV_A_ &pipeev); |
1654 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1424 | |
1655 | |
1425 | #if EV_USE_EVENTFD |
1656 | #if EV_USE_EVENTFD |
1426 | if (evfd >= 0) |
1657 | if (evfd >= 0) |
1427 | close (evfd); |
1658 | close (evfd); |
1428 | #endif |
1659 | #endif |
1429 | |
1660 | |
1430 | if (evpipe [0] >= 0) |
1661 | if (evpipe [0] >= 0) |
1431 | { |
1662 | { |
1432 | close (evpipe [0]); |
1663 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1433 | close (evpipe [1]); |
1664 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1434 | } |
1665 | } |
1435 | } |
1666 | } |
|
|
1667 | |
|
|
1668 | #if EV_USE_SIGNALFD |
|
|
1669 | if (ev_is_active (&sigfd_w)) |
|
|
1670 | close (sigfd); |
|
|
1671 | #endif |
1436 | |
1672 | |
1437 | #if EV_USE_INOTIFY |
1673 | #if EV_USE_INOTIFY |
1438 | if (fs_fd >= 0) |
1674 | if (fs_fd >= 0) |
1439 | close (fs_fd); |
1675 | close (fs_fd); |
1440 | #endif |
1676 | #endif |
… | |
… | |
1464 | #if EV_IDLE_ENABLE |
1700 | #if EV_IDLE_ENABLE |
1465 | array_free (idle, [i]); |
1701 | array_free (idle, [i]); |
1466 | #endif |
1702 | #endif |
1467 | } |
1703 | } |
1468 | |
1704 | |
1469 | ev_free (anfds); anfdmax = 0; |
1705 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1470 | |
1706 | |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
1707 | /* have to use the microsoft-never-gets-it-right macro */ |
1472 | array_free (rfeed, EMPTY); |
1708 | array_free (rfeed, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
1709 | array_free (fdchange, EMPTY); |
1474 | array_free (timer, EMPTY); |
1710 | array_free (timer, EMPTY); |
… | |
… | |
1505 | #endif |
1741 | #endif |
1506 | #if EV_USE_INOTIFY |
1742 | #if EV_USE_INOTIFY |
1507 | infy_fork (EV_A); |
1743 | infy_fork (EV_A); |
1508 | #endif |
1744 | #endif |
1509 | |
1745 | |
1510 | if (ev_is_active (&pipeev)) |
1746 | if (ev_is_active (&pipe_w)) |
1511 | { |
1747 | { |
1512 | /* this "locks" the handlers against writing to the pipe */ |
1748 | /* this "locks" the handlers against writing to the pipe */ |
1513 | /* while we modify the fd vars */ |
1749 | /* while we modify the fd vars */ |
1514 | gotsig = 1; |
1750 | sig_pending = 1; |
1515 | #if EV_ASYNC_ENABLE |
1751 | #if EV_ASYNC_ENABLE |
1516 | gotasync = 1; |
1752 | async_pending = 1; |
1517 | #endif |
1753 | #endif |
1518 | |
1754 | |
1519 | ev_ref (EV_A); |
1755 | ev_ref (EV_A); |
1520 | ev_io_stop (EV_A_ &pipeev); |
1756 | ev_io_stop (EV_A_ &pipe_w); |
1521 | |
1757 | |
1522 | #if EV_USE_EVENTFD |
1758 | #if EV_USE_EVENTFD |
1523 | if (evfd >= 0) |
1759 | if (evfd >= 0) |
1524 | close (evfd); |
1760 | close (evfd); |
1525 | #endif |
1761 | #endif |
1526 | |
1762 | |
1527 | if (evpipe [0] >= 0) |
1763 | if (evpipe [0] >= 0) |
1528 | { |
1764 | { |
1529 | close (evpipe [0]); |
1765 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1530 | close (evpipe [1]); |
1766 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1531 | } |
1767 | } |
1532 | |
1768 | |
1533 | evpipe_init (EV_A); |
1769 | evpipe_init (EV_A); |
1534 | /* now iterate over everything, in case we missed something */ |
1770 | /* now iterate over everything, in case we missed something */ |
1535 | pipecb (EV_A_ &pipeev, EV_READ); |
1771 | pipecb (EV_A_ &pipe_w, EV_READ); |
1536 | } |
1772 | } |
1537 | |
1773 | |
1538 | postfork = 0; |
1774 | postfork = 0; |
1539 | } |
1775 | } |
1540 | |
1776 | |
1541 | #if EV_MULTIPLICITY |
1777 | #if EV_MULTIPLICITY |
1542 | |
1778 | |
1543 | struct ev_loop * |
1779 | struct ev_loop * |
1544 | ev_loop_new (unsigned int flags) |
1780 | ev_loop_new (unsigned int flags) |
1545 | { |
1781 | { |
1546 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1782 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1547 | |
1783 | |
1548 | memset (loop, 0, sizeof (struct ev_loop)); |
1784 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1549 | |
|
|
1550 | loop_init (EV_A_ flags); |
1785 | loop_init (EV_A_ flags); |
1551 | |
1786 | |
1552 | if (ev_backend (EV_A)) |
1787 | if (ev_backend (EV_A)) |
1553 | return loop; |
1788 | return EV_A; |
1554 | |
1789 | |
1555 | return 0; |
1790 | return 0; |
1556 | } |
1791 | } |
1557 | |
1792 | |
1558 | void |
1793 | void |
… | |
… | |
1565 | void |
1800 | void |
1566 | ev_loop_fork (EV_P) |
1801 | ev_loop_fork (EV_P) |
1567 | { |
1802 | { |
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
1803 | postfork = 1; /* must be in line with ev_default_fork */ |
1569 | } |
1804 | } |
|
|
1805 | #endif /* multiplicity */ |
1570 | |
1806 | |
1571 | #if EV_VERIFY |
1807 | #if EV_VERIFY |
1572 | static void noinline |
1808 | static void noinline |
1573 | verify_watcher (EV_P_ W w) |
1809 | verify_watcher (EV_P_ W w) |
1574 | { |
1810 | { |
… | |
… | |
1602 | verify_watcher (EV_A_ ws [cnt]); |
1838 | verify_watcher (EV_A_ ws [cnt]); |
1603 | } |
1839 | } |
1604 | } |
1840 | } |
1605 | #endif |
1841 | #endif |
1606 | |
1842 | |
|
|
1843 | #if EV_MINIMAL < 2 |
1607 | void |
1844 | void |
1608 | ev_loop_verify (EV_P) |
1845 | ev_loop_verify (EV_P) |
1609 | { |
1846 | { |
1610 | #if EV_VERIFY |
1847 | #if EV_VERIFY |
1611 | int i; |
1848 | int i; |
… | |
… | |
1660 | assert (checkmax >= checkcnt); |
1897 | assert (checkmax >= checkcnt); |
1661 | array_verify (EV_A_ (W *)checks, checkcnt); |
1898 | array_verify (EV_A_ (W *)checks, checkcnt); |
1662 | |
1899 | |
1663 | # if 0 |
1900 | # if 0 |
1664 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1901 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1665 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1902 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1666 | # endif |
|
|
1667 | #endif |
1903 | # endif |
|
|
1904 | #endif |
1668 | } |
1905 | } |
1669 | |
1906 | #endif |
1670 | #endif /* multiplicity */ |
|
|
1671 | |
1907 | |
1672 | #if EV_MULTIPLICITY |
1908 | #if EV_MULTIPLICITY |
1673 | struct ev_loop * |
1909 | struct ev_loop * |
1674 | ev_default_loop_init (unsigned int flags) |
1910 | ev_default_loop_init (unsigned int flags) |
1675 | #else |
1911 | #else |
… | |
… | |
1678 | #endif |
1914 | #endif |
1679 | { |
1915 | { |
1680 | if (!ev_default_loop_ptr) |
1916 | if (!ev_default_loop_ptr) |
1681 | { |
1917 | { |
1682 | #if EV_MULTIPLICITY |
1918 | #if EV_MULTIPLICITY |
1683 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1919 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1684 | #else |
1920 | #else |
1685 | ev_default_loop_ptr = 1; |
1921 | ev_default_loop_ptr = 1; |
1686 | #endif |
1922 | #endif |
1687 | |
1923 | |
1688 | loop_init (EV_A_ flags); |
1924 | loop_init (EV_A_ flags); |
… | |
… | |
1705 | |
1941 | |
1706 | void |
1942 | void |
1707 | ev_default_destroy (void) |
1943 | ev_default_destroy (void) |
1708 | { |
1944 | { |
1709 | #if EV_MULTIPLICITY |
1945 | #if EV_MULTIPLICITY |
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
1946 | EV_P = ev_default_loop_ptr; |
1711 | #endif |
1947 | #endif |
1712 | |
1948 | |
1713 | ev_default_loop_ptr = 0; |
1949 | ev_default_loop_ptr = 0; |
1714 | |
1950 | |
1715 | #ifndef _WIN32 |
1951 | #ifndef _WIN32 |
… | |
… | |
1722 | |
1958 | |
1723 | void |
1959 | void |
1724 | ev_default_fork (void) |
1960 | ev_default_fork (void) |
1725 | { |
1961 | { |
1726 | #if EV_MULTIPLICITY |
1962 | #if EV_MULTIPLICITY |
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
1963 | EV_P = ev_default_loop_ptr; |
1728 | #endif |
1964 | #endif |
1729 | |
1965 | |
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
1966 | postfork = 1; /* must be in line with ev_loop_fork */ |
1731 | } |
1967 | } |
1732 | |
1968 | |
… | |
… | |
1736 | ev_invoke (EV_P_ void *w, int revents) |
1972 | ev_invoke (EV_P_ void *w, int revents) |
1737 | { |
1973 | { |
1738 | EV_CB_INVOKE ((W)w, revents); |
1974 | EV_CB_INVOKE ((W)w, revents); |
1739 | } |
1975 | } |
1740 | |
1976 | |
1741 | inline_speed void |
1977 | unsigned int |
1742 | call_pending (EV_P) |
1978 | ev_pending_count (EV_P) |
|
|
1979 | { |
|
|
1980 | int pri; |
|
|
1981 | unsigned int count = 0; |
|
|
1982 | |
|
|
1983 | for (pri = NUMPRI; pri--; ) |
|
|
1984 | count += pendingcnt [pri]; |
|
|
1985 | |
|
|
1986 | return count; |
|
|
1987 | } |
|
|
1988 | |
|
|
1989 | void noinline |
|
|
1990 | ev_invoke_pending (EV_P) |
1743 | { |
1991 | { |
1744 | int pri; |
1992 | int pri; |
1745 | |
1993 | |
1746 | for (pri = NUMPRI; pri--; ) |
1994 | for (pri = NUMPRI; pri--; ) |
1747 | while (pendingcnt [pri]) |
1995 | while (pendingcnt [pri]) |
1748 | { |
1996 | { |
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1997 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1750 | |
1998 | |
1751 | if (expect_true (p->w)) |
|
|
1752 | { |
|
|
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1999 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2000 | /* ^ this is no longer true, as pending_w could be here */ |
1754 | |
2001 | |
1755 | p->w->pending = 0; |
2002 | p->w->pending = 0; |
1756 | EV_CB_INVOKE (p->w, p->events); |
2003 | EV_CB_INVOKE (p->w, p->events); |
1757 | EV_FREQUENT_CHECK; |
2004 | EV_FREQUENT_CHECK; |
1758 | } |
|
|
1759 | } |
2005 | } |
1760 | } |
2006 | } |
1761 | |
2007 | |
1762 | #if EV_IDLE_ENABLE |
2008 | #if EV_IDLE_ENABLE |
|
|
2009 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2010 | /* only when higher priorities are idle" logic */ |
1763 | inline_size void |
2011 | inline_size void |
1764 | idle_reify (EV_P) |
2012 | idle_reify (EV_P) |
1765 | { |
2013 | { |
1766 | if (expect_false (idleall)) |
2014 | if (expect_false (idleall)) |
1767 | { |
2015 | { |
… | |
… | |
1780 | } |
2028 | } |
1781 | } |
2029 | } |
1782 | } |
2030 | } |
1783 | #endif |
2031 | #endif |
1784 | |
2032 | |
|
|
2033 | /* make timers pending */ |
1785 | inline_size void |
2034 | inline_size void |
1786 | timers_reify (EV_P) |
2035 | timers_reify (EV_P) |
1787 | { |
2036 | { |
1788 | EV_FREQUENT_CHECK; |
2037 | EV_FREQUENT_CHECK; |
1789 | |
2038 | |
… | |
… | |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2067 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1819 | } |
2068 | } |
1820 | } |
2069 | } |
1821 | |
2070 | |
1822 | #if EV_PERIODIC_ENABLE |
2071 | #if EV_PERIODIC_ENABLE |
|
|
2072 | /* make periodics pending */ |
1823 | inline_size void |
2073 | inline_size void |
1824 | periodics_reify (EV_P) |
2074 | periodics_reify (EV_P) |
1825 | { |
2075 | { |
1826 | EV_FREQUENT_CHECK; |
2076 | EV_FREQUENT_CHECK; |
1827 | |
2077 | |
… | |
… | |
1874 | |
2124 | |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2125 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1876 | } |
2126 | } |
1877 | } |
2127 | } |
1878 | |
2128 | |
|
|
2129 | /* simply recalculate all periodics */ |
|
|
2130 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1879 | static void noinline |
2131 | static void noinline |
1880 | periodics_reschedule (EV_P) |
2132 | periodics_reschedule (EV_P) |
1881 | { |
2133 | { |
1882 | int i; |
2134 | int i; |
1883 | |
2135 | |
… | |
… | |
1896 | |
2148 | |
1897 | reheap (periodics, periodiccnt); |
2149 | reheap (periodics, periodiccnt); |
1898 | } |
2150 | } |
1899 | #endif |
2151 | #endif |
1900 | |
2152 | |
|
|
2153 | /* adjust all timers by a given offset */ |
1901 | static void noinline |
2154 | static void noinline |
1902 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2155 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1903 | { |
2156 | { |
1904 | int i; |
2157 | int i; |
1905 | |
2158 | |
… | |
… | |
1909 | ANHE_w (*he)->at += adjust; |
2162 | ANHE_w (*he)->at += adjust; |
1910 | ANHE_at_cache (*he); |
2163 | ANHE_at_cache (*he); |
1911 | } |
2164 | } |
1912 | } |
2165 | } |
1913 | |
2166 | |
|
|
2167 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2168 | /* also detect if there was a timejump, and act accordingly */ |
1914 | inline_speed void |
2169 | inline_speed void |
1915 | time_update (EV_P_ ev_tstamp max_block) |
2170 | time_update (EV_P_ ev_tstamp max_block) |
1916 | { |
2171 | { |
1917 | int i; |
|
|
1918 | |
|
|
1919 | #if EV_USE_MONOTONIC |
2172 | #if EV_USE_MONOTONIC |
1920 | if (expect_true (have_monotonic)) |
2173 | if (expect_true (have_monotonic)) |
1921 | { |
2174 | { |
|
|
2175 | int i; |
1922 | ev_tstamp odiff = rtmn_diff; |
2176 | ev_tstamp odiff = rtmn_diff; |
1923 | |
2177 | |
1924 | mn_now = get_clock (); |
2178 | mn_now = get_clock (); |
1925 | |
2179 | |
1926 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2180 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1976 | |
2230 | |
1977 | mn_now = ev_rt_now; |
2231 | mn_now = ev_rt_now; |
1978 | } |
2232 | } |
1979 | } |
2233 | } |
1980 | |
2234 | |
1981 | static int loop_done; |
|
|
1982 | |
|
|
1983 | void |
2235 | void |
1984 | ev_loop (EV_P_ int flags) |
2236 | ev_loop (EV_P_ int flags) |
1985 | { |
2237 | { |
|
|
2238 | #if EV_MINIMAL < 2 |
|
|
2239 | ++loop_depth; |
|
|
2240 | #endif |
|
|
2241 | |
|
|
2242 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2243 | |
1986 | loop_done = EVUNLOOP_CANCEL; |
2244 | loop_done = EVUNLOOP_CANCEL; |
1987 | |
2245 | |
1988 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2246 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1989 | |
2247 | |
1990 | do |
2248 | do |
1991 | { |
2249 | { |
1992 | #if EV_VERIFY >= 2 |
2250 | #if EV_VERIFY >= 2 |
1993 | ev_loop_verify (EV_A); |
2251 | ev_loop_verify (EV_A); |
… | |
… | |
2006 | /* we might have forked, so queue fork handlers */ |
2264 | /* we might have forked, so queue fork handlers */ |
2007 | if (expect_false (postfork)) |
2265 | if (expect_false (postfork)) |
2008 | if (forkcnt) |
2266 | if (forkcnt) |
2009 | { |
2267 | { |
2010 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2268 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2011 | call_pending (EV_A); |
2269 | EV_INVOKE_PENDING; |
2012 | } |
2270 | } |
2013 | #endif |
2271 | #endif |
2014 | |
2272 | |
2015 | /* queue prepare watchers (and execute them) */ |
2273 | /* queue prepare watchers (and execute them) */ |
2016 | if (expect_false (preparecnt)) |
2274 | if (expect_false (preparecnt)) |
2017 | { |
2275 | { |
2018 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2276 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2019 | call_pending (EV_A); |
2277 | EV_INVOKE_PENDING; |
2020 | } |
2278 | } |
|
|
2279 | |
|
|
2280 | if (expect_false (loop_done)) |
|
|
2281 | break; |
2021 | |
2282 | |
2022 | /* we might have forked, so reify kernel state if necessary */ |
2283 | /* we might have forked, so reify kernel state if necessary */ |
2023 | if (expect_false (postfork)) |
2284 | if (expect_false (postfork)) |
2024 | loop_fork (EV_A); |
2285 | loop_fork (EV_A); |
2025 | |
2286 | |
… | |
… | |
2031 | ev_tstamp waittime = 0.; |
2292 | ev_tstamp waittime = 0.; |
2032 | ev_tstamp sleeptime = 0.; |
2293 | ev_tstamp sleeptime = 0.; |
2033 | |
2294 | |
2034 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2295 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2035 | { |
2296 | { |
|
|
2297 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2298 | ev_tstamp prev_mn_now = mn_now; |
|
|
2299 | |
2036 | /* update time to cancel out callback processing overhead */ |
2300 | /* update time to cancel out callback processing overhead */ |
2037 | time_update (EV_A_ 1e100); |
2301 | time_update (EV_A_ 1e100); |
2038 | |
2302 | |
2039 | waittime = MAX_BLOCKTIME; |
2303 | waittime = MAX_BLOCKTIME; |
2040 | |
2304 | |
… | |
… | |
2050 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2314 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2051 | if (waittime > to) waittime = to; |
2315 | if (waittime > to) waittime = to; |
2052 | } |
2316 | } |
2053 | #endif |
2317 | #endif |
2054 | |
2318 | |
|
|
2319 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2055 | if (expect_false (waittime < timeout_blocktime)) |
2320 | if (expect_false (waittime < timeout_blocktime)) |
2056 | waittime = timeout_blocktime; |
2321 | waittime = timeout_blocktime; |
2057 | |
2322 | |
2058 | sleeptime = waittime - backend_fudge; |
2323 | /* extra check because io_blocktime is commonly 0 */ |
2059 | |
|
|
2060 | if (expect_true (sleeptime > io_blocktime)) |
2324 | if (expect_false (io_blocktime)) |
2061 | sleeptime = io_blocktime; |
|
|
2062 | |
|
|
2063 | if (sleeptime) |
|
|
2064 | { |
2325 | { |
|
|
2326 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2327 | |
|
|
2328 | if (sleeptime > waittime - backend_fudge) |
|
|
2329 | sleeptime = waittime - backend_fudge; |
|
|
2330 | |
|
|
2331 | if (expect_true (sleeptime > 0.)) |
|
|
2332 | { |
2065 | ev_sleep (sleeptime); |
2333 | ev_sleep (sleeptime); |
2066 | waittime -= sleeptime; |
2334 | waittime -= sleeptime; |
|
|
2335 | } |
2067 | } |
2336 | } |
2068 | } |
2337 | } |
2069 | |
2338 | |
|
|
2339 | #if EV_MINIMAL < 2 |
2070 | ++loop_count; |
2340 | ++loop_count; |
|
|
2341 | #endif |
|
|
2342 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2071 | backend_poll (EV_A_ waittime); |
2343 | backend_poll (EV_A_ waittime); |
|
|
2344 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2072 | |
2345 | |
2073 | /* update ev_rt_now, do magic */ |
2346 | /* update ev_rt_now, do magic */ |
2074 | time_update (EV_A_ waittime + sleeptime); |
2347 | time_update (EV_A_ waittime + sleeptime); |
2075 | } |
2348 | } |
2076 | |
2349 | |
… | |
… | |
2087 | |
2360 | |
2088 | /* queue check watchers, to be executed first */ |
2361 | /* queue check watchers, to be executed first */ |
2089 | if (expect_false (checkcnt)) |
2362 | if (expect_false (checkcnt)) |
2090 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2363 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2091 | |
2364 | |
2092 | call_pending (EV_A); |
2365 | EV_INVOKE_PENDING; |
2093 | } |
2366 | } |
2094 | while (expect_true ( |
2367 | while (expect_true ( |
2095 | activecnt |
2368 | activecnt |
2096 | && !loop_done |
2369 | && !loop_done |
2097 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2370 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2098 | )); |
2371 | )); |
2099 | |
2372 | |
2100 | if (loop_done == EVUNLOOP_ONE) |
2373 | if (loop_done == EVUNLOOP_ONE) |
2101 | loop_done = EVUNLOOP_CANCEL; |
2374 | loop_done = EVUNLOOP_CANCEL; |
|
|
2375 | |
|
|
2376 | #if EV_MINIMAL < 2 |
|
|
2377 | --loop_depth; |
|
|
2378 | #endif |
2102 | } |
2379 | } |
2103 | |
2380 | |
2104 | void |
2381 | void |
2105 | ev_unloop (EV_P_ int how) |
2382 | ev_unloop (EV_P_ int how) |
2106 | { |
2383 | { |
… | |
… | |
2137 | ev_tstamp mn_prev = mn_now; |
2414 | ev_tstamp mn_prev = mn_now; |
2138 | |
2415 | |
2139 | ev_now_update (EV_A); |
2416 | ev_now_update (EV_A); |
2140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
2417 | timers_reschedule (EV_A_ mn_now - mn_prev); |
2141 | #if EV_PERIODIC_ENABLE |
2418 | #if EV_PERIODIC_ENABLE |
|
|
2419 | /* TODO: really do this? */ |
2142 | periodics_reschedule (EV_A); |
2420 | periodics_reschedule (EV_A); |
2143 | #endif |
2421 | #endif |
2144 | } |
2422 | } |
2145 | |
2423 | |
2146 | /*****************************************************************************/ |
2424 | /*****************************************************************************/ |
|
|
2425 | /* singly-linked list management, used when the expected list length is short */ |
2147 | |
2426 | |
2148 | inline_size void |
2427 | inline_size void |
2149 | wlist_add (WL *head, WL elem) |
2428 | wlist_add (WL *head, WL elem) |
2150 | { |
2429 | { |
2151 | elem->next = *head; |
2430 | elem->next = *head; |
… | |
… | |
2155 | inline_size void |
2434 | inline_size void |
2156 | wlist_del (WL *head, WL elem) |
2435 | wlist_del (WL *head, WL elem) |
2157 | { |
2436 | { |
2158 | while (*head) |
2437 | while (*head) |
2159 | { |
2438 | { |
2160 | if (*head == elem) |
2439 | if (expect_true (*head == elem)) |
2161 | { |
2440 | { |
2162 | *head = elem->next; |
2441 | *head = elem->next; |
2163 | return; |
2442 | break; |
2164 | } |
2443 | } |
2165 | |
2444 | |
2166 | head = &(*head)->next; |
2445 | head = &(*head)->next; |
2167 | } |
2446 | } |
2168 | } |
2447 | } |
2169 | |
2448 | |
|
|
2449 | /* internal, faster, version of ev_clear_pending */ |
2170 | inline_speed void |
2450 | inline_speed void |
2171 | clear_pending (EV_P_ W w) |
2451 | clear_pending (EV_P_ W w) |
2172 | { |
2452 | { |
2173 | if (w->pending) |
2453 | if (w->pending) |
2174 | { |
2454 | { |
2175 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2455 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2176 | w->pending = 0; |
2456 | w->pending = 0; |
2177 | } |
2457 | } |
2178 | } |
2458 | } |
2179 | |
2459 | |
2180 | int |
2460 | int |
… | |
… | |
2184 | int pending = w_->pending; |
2464 | int pending = w_->pending; |
2185 | |
2465 | |
2186 | if (expect_true (pending)) |
2466 | if (expect_true (pending)) |
2187 | { |
2467 | { |
2188 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2468 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2469 | p->w = (W)&pending_w; |
2189 | w_->pending = 0; |
2470 | w_->pending = 0; |
2190 | p->w = 0; |
|
|
2191 | return p->events; |
2471 | return p->events; |
2192 | } |
2472 | } |
2193 | else |
2473 | else |
2194 | return 0; |
2474 | return 0; |
2195 | } |
2475 | } |
2196 | |
2476 | |
2197 | inline_size void |
2477 | inline_size void |
2198 | pri_adjust (EV_P_ W w) |
2478 | pri_adjust (EV_P_ W w) |
2199 | { |
2479 | { |
2200 | int pri = w->priority; |
2480 | int pri = ev_priority (w); |
2201 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2481 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2202 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2482 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2203 | w->priority = pri; |
2483 | ev_set_priority (w, pri); |
2204 | } |
2484 | } |
2205 | |
2485 | |
2206 | inline_speed void |
2486 | inline_speed void |
2207 | ev_start (EV_P_ W w, int active) |
2487 | ev_start (EV_P_ W w, int active) |
2208 | { |
2488 | { |
… | |
… | |
2235 | |
2515 | |
2236 | ev_start (EV_A_ (W)w, 1); |
2516 | ev_start (EV_A_ (W)w, 1); |
2237 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2517 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2238 | wlist_add (&anfds[fd].head, (WL)w); |
2518 | wlist_add (&anfds[fd].head, (WL)w); |
2239 | |
2519 | |
2240 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2520 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2241 | w->events &= ~EV__IOFDSET; |
2521 | w->events &= ~EV__IOFDSET; |
2242 | |
2522 | |
2243 | EV_FREQUENT_CHECK; |
2523 | EV_FREQUENT_CHECK; |
2244 | } |
2524 | } |
2245 | |
2525 | |
… | |
… | |
2339 | } |
2619 | } |
2340 | |
2620 | |
2341 | EV_FREQUENT_CHECK; |
2621 | EV_FREQUENT_CHECK; |
2342 | } |
2622 | } |
2343 | |
2623 | |
|
|
2624 | ev_tstamp |
|
|
2625 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2626 | { |
|
|
2627 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2628 | } |
|
|
2629 | |
2344 | #if EV_PERIODIC_ENABLE |
2630 | #if EV_PERIODIC_ENABLE |
2345 | void noinline |
2631 | void noinline |
2346 | ev_periodic_start (EV_P_ ev_periodic *w) |
2632 | ev_periodic_start (EV_P_ ev_periodic *w) |
2347 | { |
2633 | { |
2348 | if (expect_false (ev_is_active (w))) |
2634 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2415 | #endif |
2701 | #endif |
2416 | |
2702 | |
2417 | void noinline |
2703 | void noinline |
2418 | ev_signal_start (EV_P_ ev_signal *w) |
2704 | ev_signal_start (EV_P_ ev_signal *w) |
2419 | { |
2705 | { |
2420 | #if EV_MULTIPLICITY |
|
|
2421 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2422 | #endif |
|
|
2423 | if (expect_false (ev_is_active (w))) |
2706 | if (expect_false (ev_is_active (w))) |
2424 | return; |
2707 | return; |
2425 | |
2708 | |
2426 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2709 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2427 | |
2710 | |
2428 | evpipe_init (EV_A); |
2711 | #if EV_MULTIPLICITY |
|
|
2712 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2713 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2429 | |
2714 | |
2430 | EV_FREQUENT_CHECK; |
2715 | signals [w->signum - 1].loop = EV_A; |
|
|
2716 | #endif |
2431 | |
2717 | |
|
|
2718 | EV_FREQUENT_CHECK; |
|
|
2719 | |
|
|
2720 | #if EV_USE_SIGNALFD |
|
|
2721 | if (sigfd == -2) |
2432 | { |
2722 | { |
2433 | #ifndef _WIN32 |
2723 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2434 | sigset_t full, prev; |
2724 | if (sigfd < 0 && errno == EINVAL) |
2435 | sigfillset (&full); |
2725 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2436 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2437 | #endif |
|
|
2438 | |
2726 | |
2439 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2727 | if (sigfd >= 0) |
|
|
2728 | { |
|
|
2729 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2440 | |
2730 | |
2441 | #ifndef _WIN32 |
2731 | sigemptyset (&sigfd_set); |
2442 | sigprocmask (SIG_SETMASK, &prev, 0); |
2732 | |
2443 | #endif |
2733 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2734 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2735 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2736 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2737 | } |
2444 | } |
2738 | } |
|
|
2739 | |
|
|
2740 | if (sigfd >= 0) |
|
|
2741 | { |
|
|
2742 | /* TODO: check .head */ |
|
|
2743 | sigaddset (&sigfd_set, w->signum); |
|
|
2744 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2745 | |
|
|
2746 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2747 | } |
|
|
2748 | #endif |
2445 | |
2749 | |
2446 | ev_start (EV_A_ (W)w, 1); |
2750 | ev_start (EV_A_ (W)w, 1); |
2447 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2751 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2448 | |
2752 | |
2449 | if (!((WL)w)->next) |
2753 | if (!((WL)w)->next) |
|
|
2754 | # if EV_USE_SIGNALFD |
|
|
2755 | if (sigfd < 0) /*TODO*/ |
|
|
2756 | # endif |
2450 | { |
2757 | { |
2451 | #if _WIN32 |
2758 | # ifdef _WIN32 |
|
|
2759 | evpipe_init (EV_A); |
|
|
2760 | |
2452 | signal (w->signum, ev_sighandler); |
2761 | signal (w->signum, ev_sighandler); |
2453 | #else |
2762 | # else |
2454 | struct sigaction sa; |
2763 | struct sigaction sa; |
|
|
2764 | |
|
|
2765 | evpipe_init (EV_A); |
|
|
2766 | |
2455 | sa.sa_handler = ev_sighandler; |
2767 | sa.sa_handler = ev_sighandler; |
2456 | sigfillset (&sa.sa_mask); |
2768 | sigfillset (&sa.sa_mask); |
2457 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2769 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2458 | sigaction (w->signum, &sa, 0); |
2770 | sigaction (w->signum, &sa, 0); |
|
|
2771 | |
|
|
2772 | sigemptyset (&sa.sa_mask); |
|
|
2773 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2774 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2459 | #endif |
2775 | #endif |
2460 | } |
2776 | } |
2461 | |
2777 | |
2462 | EV_FREQUENT_CHECK; |
2778 | EV_FREQUENT_CHECK; |
2463 | } |
2779 | } |
2464 | |
2780 | |
2465 | void noinline |
2781 | void noinline |
… | |
… | |
2473 | |
2789 | |
2474 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2790 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2475 | ev_stop (EV_A_ (W)w); |
2791 | ev_stop (EV_A_ (W)w); |
2476 | |
2792 | |
2477 | if (!signals [w->signum - 1].head) |
2793 | if (!signals [w->signum - 1].head) |
|
|
2794 | { |
|
|
2795 | #if EV_MULTIPLICITY |
|
|
2796 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2797 | #endif |
|
|
2798 | #if EV_USE_SIGNALFD |
|
|
2799 | if (sigfd >= 0) |
|
|
2800 | { |
|
|
2801 | sigset_t ss; |
|
|
2802 | |
|
|
2803 | sigemptyset (&ss); |
|
|
2804 | sigaddset (&ss, w->signum); |
|
|
2805 | sigdelset (&sigfd_set, w->signum); |
|
|
2806 | |
|
|
2807 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2808 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2809 | } |
|
|
2810 | else |
|
|
2811 | #endif |
2478 | signal (w->signum, SIG_DFL); |
2812 | signal (w->signum, SIG_DFL); |
|
|
2813 | } |
2479 | |
2814 | |
2480 | EV_FREQUENT_CHECK; |
2815 | EV_FREQUENT_CHECK; |
2481 | } |
2816 | } |
2482 | |
2817 | |
2483 | void |
2818 | void |
… | |
… | |
2531 | static void noinline |
2866 | static void noinline |
2532 | infy_add (EV_P_ ev_stat *w) |
2867 | infy_add (EV_P_ ev_stat *w) |
2533 | { |
2868 | { |
2534 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2869 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2535 | |
2870 | |
2536 | if (w->wd < 0) |
2871 | if (w->wd >= 0) |
|
|
2872 | { |
|
|
2873 | struct statfs sfs; |
|
|
2874 | |
|
|
2875 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2876 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2877 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2878 | |
|
|
2879 | if (!fs_2625) |
|
|
2880 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2881 | else if (!statfs (w->path, &sfs) |
|
|
2882 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2883 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2884 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2885 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2886 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2887 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2888 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2889 | else |
|
|
2890 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2537 | { |
2891 | } |
|
|
2892 | else |
|
|
2893 | { |
|
|
2894 | /* can't use inotify, continue to stat */ |
2538 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2895 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2539 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2540 | |
2896 | |
2541 | /* monitor some parent directory for speedup hints */ |
2897 | /* if path is not there, monitor some parent directory for speedup hints */ |
2542 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2898 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2543 | /* but an efficiency issue only */ |
2899 | /* but an efficiency issue only */ |
2544 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2900 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2545 | { |
2901 | { |
2546 | char path [4096]; |
2902 | char path [4096]; |
… | |
… | |
2562 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2918 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2563 | } |
2919 | } |
2564 | } |
2920 | } |
2565 | |
2921 | |
2566 | if (w->wd >= 0) |
2922 | if (w->wd >= 0) |
2567 | { |
|
|
2568 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2923 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2569 | |
2924 | |
2570 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2925 | /* now re-arm timer, if required */ |
2571 | /* unless the filesystem it known to be local, we therefore still poll */ |
2926 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2572 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2573 | struct statfs sfs; |
|
|
2574 | |
|
|
2575 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2576 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2577 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2578 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2579 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2580 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2581 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2582 | return; |
|
|
2583 | |
|
|
2584 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2585 | ev_timer_again (EV_A_ &w->timer); |
2927 | ev_timer_again (EV_A_ &w->timer); |
2586 | } |
2928 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2587 | } |
2929 | } |
2588 | |
2930 | |
2589 | static void noinline |
2931 | static void noinline |
2590 | infy_del (EV_P_ ev_stat *w) |
2932 | infy_del (EV_P_ ev_stat *w) |
2591 | { |
2933 | { |
… | |
… | |
2667 | return; |
3009 | return; |
2668 | |
3010 | |
2669 | fs_2625 = 1; |
3011 | fs_2625 = 1; |
2670 | } |
3012 | } |
2671 | |
3013 | |
|
|
3014 | inline_size int |
|
|
3015 | infy_newfd (void) |
|
|
3016 | { |
|
|
3017 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3018 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3019 | if (fd >= 0) |
|
|
3020 | return fd; |
|
|
3021 | #endif |
|
|
3022 | return inotify_init (); |
|
|
3023 | } |
|
|
3024 | |
2672 | inline_size void |
3025 | inline_size void |
2673 | infy_init (EV_P) |
3026 | infy_init (EV_P) |
2674 | { |
3027 | { |
2675 | if (fs_fd != -2) |
3028 | if (fs_fd != -2) |
2676 | return; |
3029 | return; |
2677 | |
3030 | |
2678 | fs_fd = -1; |
3031 | fs_fd = -1; |
2679 | |
3032 | |
2680 | check_2625 (EV_A); |
3033 | check_2625 (EV_A); |
2681 | |
3034 | |
2682 | fs_fd = inotify_init (); |
3035 | fs_fd = infy_newfd (); |
2683 | |
3036 | |
2684 | if (fs_fd >= 0) |
3037 | if (fs_fd >= 0) |
2685 | { |
3038 | { |
|
|
3039 | fd_intern (fs_fd); |
2686 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3040 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2687 | ev_set_priority (&fs_w, EV_MAXPRI); |
3041 | ev_set_priority (&fs_w, EV_MAXPRI); |
2688 | ev_io_start (EV_A_ &fs_w); |
3042 | ev_io_start (EV_A_ &fs_w); |
|
|
3043 | ev_unref (EV_A); |
2689 | } |
3044 | } |
2690 | } |
3045 | } |
2691 | |
3046 | |
2692 | inline_size void |
3047 | inline_size void |
2693 | infy_fork (EV_P) |
3048 | infy_fork (EV_P) |
… | |
… | |
2695 | int slot; |
3050 | int slot; |
2696 | |
3051 | |
2697 | if (fs_fd < 0) |
3052 | if (fs_fd < 0) |
2698 | return; |
3053 | return; |
2699 | |
3054 | |
|
|
3055 | ev_ref (EV_A); |
|
|
3056 | ev_io_stop (EV_A_ &fs_w); |
2700 | close (fs_fd); |
3057 | close (fs_fd); |
2701 | fs_fd = inotify_init (); |
3058 | fs_fd = infy_newfd (); |
|
|
3059 | |
|
|
3060 | if (fs_fd >= 0) |
|
|
3061 | { |
|
|
3062 | fd_intern (fs_fd); |
|
|
3063 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3064 | ev_io_start (EV_A_ &fs_w); |
|
|
3065 | ev_unref (EV_A); |
|
|
3066 | } |
2702 | |
3067 | |
2703 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3068 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2704 | { |
3069 | { |
2705 | WL w_ = fs_hash [slot].head; |
3070 | WL w_ = fs_hash [slot].head; |
2706 | fs_hash [slot].head = 0; |
3071 | fs_hash [slot].head = 0; |
… | |
… | |
2713 | w->wd = -1; |
3078 | w->wd = -1; |
2714 | |
3079 | |
2715 | if (fs_fd >= 0) |
3080 | if (fs_fd >= 0) |
2716 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3081 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2717 | else |
3082 | else |
|
|
3083 | { |
|
|
3084 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3085 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2718 | ev_timer_again (EV_A_ &w->timer); |
3086 | ev_timer_again (EV_A_ &w->timer); |
|
|
3087 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3088 | } |
2719 | } |
3089 | } |
2720 | } |
3090 | } |
2721 | } |
3091 | } |
2722 | |
3092 | |
2723 | #endif |
3093 | #endif |
… | |
… | |
2740 | static void noinline |
3110 | static void noinline |
2741 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3111 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2742 | { |
3112 | { |
2743 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3113 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2744 | |
3114 | |
2745 | /* we copy this here each the time so that */ |
3115 | ev_statdata prev = w->attr; |
2746 | /* prev has the old value when the callback gets invoked */ |
|
|
2747 | w->prev = w->attr; |
|
|
2748 | ev_stat_stat (EV_A_ w); |
3116 | ev_stat_stat (EV_A_ w); |
2749 | |
3117 | |
2750 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3118 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2751 | if ( |
3119 | if ( |
2752 | w->prev.st_dev != w->attr.st_dev |
3120 | prev.st_dev != w->attr.st_dev |
2753 | || w->prev.st_ino != w->attr.st_ino |
3121 | || prev.st_ino != w->attr.st_ino |
2754 | || w->prev.st_mode != w->attr.st_mode |
3122 | || prev.st_mode != w->attr.st_mode |
2755 | || w->prev.st_nlink != w->attr.st_nlink |
3123 | || prev.st_nlink != w->attr.st_nlink |
2756 | || w->prev.st_uid != w->attr.st_uid |
3124 | || prev.st_uid != w->attr.st_uid |
2757 | || w->prev.st_gid != w->attr.st_gid |
3125 | || prev.st_gid != w->attr.st_gid |
2758 | || w->prev.st_rdev != w->attr.st_rdev |
3126 | || prev.st_rdev != w->attr.st_rdev |
2759 | || w->prev.st_size != w->attr.st_size |
3127 | || prev.st_size != w->attr.st_size |
2760 | || w->prev.st_atime != w->attr.st_atime |
3128 | || prev.st_atime != w->attr.st_atime |
2761 | || w->prev.st_mtime != w->attr.st_mtime |
3129 | || prev.st_mtime != w->attr.st_mtime |
2762 | || w->prev.st_ctime != w->attr.st_ctime |
3130 | || prev.st_ctime != w->attr.st_ctime |
2763 | ) { |
3131 | ) { |
|
|
3132 | /* we only update w->prev on actual differences */ |
|
|
3133 | /* in case we test more often than invoke the callback, */ |
|
|
3134 | /* to ensure that prev is always different to attr */ |
|
|
3135 | w->prev = prev; |
|
|
3136 | |
2764 | #if EV_USE_INOTIFY |
3137 | #if EV_USE_INOTIFY |
2765 | if (fs_fd >= 0) |
3138 | if (fs_fd >= 0) |
2766 | { |
3139 | { |
2767 | infy_del (EV_A_ w); |
3140 | infy_del (EV_A_ w); |
2768 | infy_add (EV_A_ w); |
3141 | infy_add (EV_A_ w); |
… | |
… | |
2793 | |
3166 | |
2794 | if (fs_fd >= 0) |
3167 | if (fs_fd >= 0) |
2795 | infy_add (EV_A_ w); |
3168 | infy_add (EV_A_ w); |
2796 | else |
3169 | else |
2797 | #endif |
3170 | #endif |
|
|
3171 | { |
2798 | ev_timer_again (EV_A_ &w->timer); |
3172 | ev_timer_again (EV_A_ &w->timer); |
|
|
3173 | ev_unref (EV_A); |
|
|
3174 | } |
2799 | |
3175 | |
2800 | ev_start (EV_A_ (W)w, 1); |
3176 | ev_start (EV_A_ (W)w, 1); |
2801 | |
3177 | |
2802 | EV_FREQUENT_CHECK; |
3178 | EV_FREQUENT_CHECK; |
2803 | } |
3179 | } |
… | |
… | |
2812 | EV_FREQUENT_CHECK; |
3188 | EV_FREQUENT_CHECK; |
2813 | |
3189 | |
2814 | #if EV_USE_INOTIFY |
3190 | #if EV_USE_INOTIFY |
2815 | infy_del (EV_A_ w); |
3191 | infy_del (EV_A_ w); |
2816 | #endif |
3192 | #endif |
|
|
3193 | |
|
|
3194 | if (ev_is_active (&w->timer)) |
|
|
3195 | { |
|
|
3196 | ev_ref (EV_A); |
2817 | ev_timer_stop (EV_A_ &w->timer); |
3197 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3198 | } |
2818 | |
3199 | |
2819 | ev_stop (EV_A_ (W)w); |
3200 | ev_stop (EV_A_ (W)w); |
2820 | |
3201 | |
2821 | EV_FREQUENT_CHECK; |
3202 | EV_FREQUENT_CHECK; |
2822 | } |
3203 | } |
… | |
… | |
2963 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3344 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2964 | { |
3345 | { |
2965 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3346 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2966 | |
3347 | |
2967 | { |
3348 | { |
2968 | struct ev_loop *loop = w->other; |
3349 | EV_P = w->other; |
2969 | |
3350 | |
2970 | while (fdchangecnt) |
3351 | while (fdchangecnt) |
2971 | { |
3352 | { |
2972 | fd_reify (EV_A); |
3353 | fd_reify (EV_A); |
2973 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3354 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
2981 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3362 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2982 | |
3363 | |
2983 | ev_embed_stop (EV_A_ w); |
3364 | ev_embed_stop (EV_A_ w); |
2984 | |
3365 | |
2985 | { |
3366 | { |
2986 | struct ev_loop *loop = w->other; |
3367 | EV_P = w->other; |
2987 | |
3368 | |
2988 | ev_loop_fork (EV_A); |
3369 | ev_loop_fork (EV_A); |
2989 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3370 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2990 | } |
3371 | } |
2991 | |
3372 | |
… | |
… | |
3005 | { |
3386 | { |
3006 | if (expect_false (ev_is_active (w))) |
3387 | if (expect_false (ev_is_active (w))) |
3007 | return; |
3388 | return; |
3008 | |
3389 | |
3009 | { |
3390 | { |
3010 | struct ev_loop *loop = w->other; |
3391 | EV_P = w->other; |
3011 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3392 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3012 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3393 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3013 | } |
3394 | } |
3014 | |
3395 | |
3015 | EV_FREQUENT_CHECK; |
3396 | EV_FREQUENT_CHECK; |
… | |
… | |
3127 | |
3508 | |
3128 | void |
3509 | void |
3129 | ev_async_send (EV_P_ ev_async *w) |
3510 | ev_async_send (EV_P_ ev_async *w) |
3130 | { |
3511 | { |
3131 | w->sent = 1; |
3512 | w->sent = 1; |
3132 | evpipe_write (EV_A_ &gotasync); |
3513 | evpipe_write (EV_A_ &async_pending); |
3133 | } |
3514 | } |
3134 | #endif |
3515 | #endif |
3135 | |
3516 | |
3136 | /*****************************************************************************/ |
3517 | /*****************************************************************************/ |
3137 | |
3518 | |
… | |
… | |
3201 | } |
3582 | } |
3202 | } |
3583 | } |
3203 | |
3584 | |
3204 | /*****************************************************************************/ |
3585 | /*****************************************************************************/ |
3205 | |
3586 | |
3206 | #if 0 |
3587 | #if EV_WALK_ENABLE |
3207 | void |
3588 | void |
3208 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3589 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3209 | { |
3590 | { |
3210 | int i, j; |
3591 | int i, j; |
3211 | ev_watcher_list *wl, *wn; |
3592 | ev_watcher_list *wl, *wn; |
… | |
… | |
3227 | #if EV_USE_INOTIFY |
3608 | #if EV_USE_INOTIFY |
3228 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3609 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3229 | ; |
3610 | ; |
3230 | else |
3611 | else |
3231 | #endif |
3612 | #endif |
3232 | if ((ev_io *)wl != &pipeev) |
3613 | if ((ev_io *)wl != &pipe_w) |
3233 | if (types & EV_IO) |
3614 | if (types & EV_IO) |
3234 | cb (EV_A_ EV_IO, wl); |
3615 | cb (EV_A_ EV_IO, wl); |
3235 | |
3616 | |
3236 | wl = wn; |
3617 | wl = wn; |
3237 | } |
3618 | } |
… | |
… | |
3286 | if (types & EV_CHECK) |
3667 | if (types & EV_CHECK) |
3287 | for (i = checkcnt; i--; ) |
3668 | for (i = checkcnt; i--; ) |
3288 | cb (EV_A_ EV_CHECK, checks [i]); |
3669 | cb (EV_A_ EV_CHECK, checks [i]); |
3289 | |
3670 | |
3290 | if (types & EV_SIGNAL) |
3671 | if (types & EV_SIGNAL) |
3291 | for (i = 0; i < signalmax; ++i) |
3672 | for (i = 0; i < EV_NSIG - 1; ++i) |
3292 | for (wl = signals [i].head; wl; ) |
3673 | for (wl = signals [i].head; wl; ) |
3293 | { |
3674 | { |
3294 | wn = wl->next; |
3675 | wn = wl->next; |
3295 | cb (EV_A_ EV_SIGNAL, wl); |
3676 | cb (EV_A_ EV_SIGNAL, wl); |
3296 | wl = wn; |
3677 | wl = wn; |