… | |
… | |
117 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
118 | # endif |
118 | # endif |
119 | |
119 | |
120 | # if HAVE_LINUX_AIO_ABI_H |
120 | # if HAVE_LINUX_AIO_ABI_H |
121 | # ifndef EV_USE_LINUXAIO |
121 | # ifndef EV_USE_LINUXAIO |
122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
122 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
123 | # endif |
123 | # endif |
124 | # else |
124 | # else |
125 | # undef EV_USE_LINUXAIO |
125 | # undef EV_USE_LINUXAIO |
126 | # define EV_USE_LINUXAIO 0 |
126 | # define EV_USE_LINUXAIO 0 |
127 | # endif |
127 | # endif |
128 | |
128 | |
|
|
129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
|
|
130 | # ifndef EV_USE_IOURING |
|
|
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
|
|
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_IOURING |
|
|
135 | # define EV_USE_IOURING 0 |
|
|
136 | # endif |
|
|
137 | |
129 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
130 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
131 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
132 | # endif |
141 | # endif |
133 | # else |
142 | # else |
… | |
… | |
168 | # endif |
177 | # endif |
169 | # else |
178 | # else |
170 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
171 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
172 | # endif |
181 | # endif |
173 | |
182 | |
|
|
183 | # if HAVE_SYS_TIMERFD_H |
|
|
184 | # ifndef EV_USE_TIMERFD |
|
|
185 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
186 | # endif |
|
|
187 | # else |
|
|
188 | # undef EV_USE_TIMERFD |
|
|
189 | # define EV_USE_TIMERFD 0 |
|
|
190 | # endif |
|
|
191 | |
174 | #endif |
192 | #endif |
175 | |
193 | |
176 | /* OS X, in its infinite idiocy, actually HARDCODES |
194 | /* OS X, in its infinite idiocy, actually HARDCODES |
177 | * a limit of 1024 into their select. Where people have brains, |
195 | * a limit of 1024 into their select. Where people have brains, |
178 | * OS X engineers apparently have a vacuum. Or maybe they were |
196 | * OS X engineers apparently have a vacuum. Or maybe they were |
… | |
… | |
326 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
327 | #endif |
345 | #endif |
328 | |
346 | |
329 | #ifndef EV_USE_LINUXAIO |
347 | #ifndef EV_USE_LINUXAIO |
330 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
348 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
331 | # define EV_USE_LINUXAIO 1 |
349 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
332 | # else |
350 | # else |
333 | # define EV_USE_LINUXAIO 0 |
351 | # define EV_USE_LINUXAIO 0 |
334 | # endif |
352 | # endif |
335 | #endif |
353 | #endif |
336 | |
354 | |
337 | #ifndef EV_USE_IOURING |
355 | #ifndef EV_USE_IOURING |
338 | # if __linux |
356 | # if __linux /* later checks might disable again */ |
339 | # define EV_USE_IOURING 0 |
357 | # define EV_USE_IOURING 1 |
340 | # else |
358 | # else |
341 | # define EV_USE_IOURING 0 |
359 | # define EV_USE_IOURING 0 |
342 | # endif |
360 | # endif |
343 | #endif |
361 | #endif |
344 | |
362 | |
… | |
… | |
369 | #ifndef EV_USE_SIGNALFD |
387 | #ifndef EV_USE_SIGNALFD |
370 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
388 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
371 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
389 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
372 | # else |
390 | # else |
373 | # define EV_USE_SIGNALFD 0 |
391 | # define EV_USE_SIGNALFD 0 |
|
|
392 | # endif |
|
|
393 | #endif |
|
|
394 | |
|
|
395 | #ifndef EV_USE_TIMERFD |
|
|
396 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
|
|
397 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
398 | # else |
|
|
399 | # define EV_USE_TIMERFD 0 |
374 | # endif |
400 | # endif |
375 | #endif |
401 | #endif |
376 | |
402 | |
377 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
378 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
… | |
… | |
438 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
439 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
440 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
441 | #endif |
467 | #endif |
442 | |
468 | |
|
|
469 | #if __linux && EV_USE_IOURING |
|
|
470 | # include <linux/version.h> |
|
|
471 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
|
|
472 | # undef EV_USE_IOURING |
|
|
473 | # define EV_USE_IOURING 0 |
|
|
474 | # endif |
|
|
475 | #endif |
|
|
476 | |
443 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
444 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
445 | # if !defined _WIN32 && !defined __hpux |
479 | # if !defined _WIN32 && !defined __hpux |
446 | # include <sys/select.h> |
480 | # include <sys/select.h> |
447 | # endif |
481 | # endif |
… | |
… | |
481 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
482 | # endif |
516 | # endif |
483 | #endif |
517 | #endif |
484 | |
518 | |
485 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
486 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
520 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
487 | # include <stdint.h> |
521 | # include <stdint.h> |
488 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
489 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
490 | # endif |
524 | # endif |
491 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
497 | # endif |
531 | # endif |
498 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
499 | #endif |
533 | #endif |
500 | |
534 | |
501 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
502 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
536 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
503 | # include <stdint.h> |
537 | # include <stdint.h> |
504 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
505 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
506 | # endif |
540 | # endif |
507 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
509 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
510 | # else |
544 | # else |
511 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
512 | # endif |
546 | # endif |
513 | # endif |
547 | # endif |
514 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
548 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
515 | |
549 | |
516 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
517 | { |
551 | { |
518 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
519 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
520 | }; |
554 | }; |
|
|
555 | #endif |
|
|
556 | |
|
|
557 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
|
|
558 | #if EV_USE_TIMERFD |
|
|
559 | # include <sys/timerfd.h> |
|
|
560 | /* timerfd is only used for periodics */ |
|
|
561 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
|
|
562 | # undef EV_USE_TIMERFD |
|
|
563 | # define EV_USE_TIMERFD 0 |
|
|
564 | # endif |
521 | #endif |
565 | #endif |
522 | |
566 | |
523 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
524 | |
568 | |
525 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
… | |
… | |
1614 | * our syscalls return < 0, not == -1, on error. which is good |
1658 | * our syscalls return < 0, not == -1, on error. which is good |
1615 | * enough for linux aio. |
1659 | * enough for linux aio. |
1616 | * TODO: arm is also common nowadays, maybe even mips and x86 |
1660 | * TODO: arm is also common nowadays, maybe even mips and x86 |
1617 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
1661 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
1618 | */ |
1662 | */ |
1619 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
1663 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
1620 | /* the costly errno access probably kills this for size optimisation */ |
1664 | /* the costly errno access probably kills this for size optimisation */ |
1621 | |
1665 | |
1622 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
1666 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
1623 | ({ \ |
1667 | ({ \ |
1624 | long res; \ |
1668 | long res; \ |
… | |
… | |
2004 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
2005 | return EV_TS_GET (ts); |
2049 | return EV_TS_GET (ts); |
2006 | } |
2050 | } |
2007 | #endif |
2051 | #endif |
2008 | |
2052 | |
|
|
2053 | { |
2009 | struct timeval tv; |
2054 | struct timeval tv; |
2010 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
2011 | return EV_TV_GET (tv); |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
2012 | } |
2058 | } |
2013 | #endif |
2059 | #endif |
2014 | |
2060 | |
2015 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
2016 | get_clock (void) |
2062 | get_clock (void) |
… | |
… | |
2216 | inline_size void |
2262 | inline_size void |
2217 | fd_reify (EV_P) |
2263 | fd_reify (EV_P) |
2218 | { |
2264 | { |
2219 | int i; |
2265 | int i; |
2220 | |
2266 | |
|
|
2267 | /* most backends do not modify the fdchanges list in backend_modfiy. |
|
|
2268 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2269 | * to handle events in backend_modify, causing fdchangesd to be amended, |
|
|
2270 | * which could result in an endless loop. |
|
|
2271 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2272 | * during fd_reify. that menas thast for those backends, fdchangecnt |
|
|
2273 | * might be non-zero during poll, which must cause them to not block. |
|
|
2274 | * to not put too much of a burden on other backends, this detail |
|
|
2275 | * needs to be handled in the backend. |
|
|
2276 | */ |
|
|
2277 | int changecnt = fdchangecnt; |
|
|
2278 | |
2221 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2279 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2222 | for (i = 0; i < fdchangecnt; ++i) |
2280 | for (i = 0; i < changecnt; ++i) |
2223 | { |
2281 | { |
2224 | int fd = fdchanges [i]; |
2282 | int fd = fdchanges [i]; |
2225 | ANFD *anfd = anfds + fd; |
2283 | ANFD *anfd = anfds + fd; |
2226 | |
2284 | |
2227 | if (anfd->reify & EV__IOFDSET && anfd->head) |
2285 | if (anfd->reify & EV__IOFDSET && anfd->head) |
… | |
… | |
2241 | } |
2299 | } |
2242 | } |
2300 | } |
2243 | } |
2301 | } |
2244 | #endif |
2302 | #endif |
2245 | |
2303 | |
2246 | for (i = 0; i < fdchangecnt; ++i) |
2304 | for (i = 0; i < changecnt; ++i) |
2247 | { |
2305 | { |
2248 | int fd = fdchanges [i]; |
2306 | int fd = fdchanges [i]; |
2249 | ANFD *anfd = anfds + fd; |
2307 | ANFD *anfd = anfds + fd; |
2250 | ev_io *w; |
2308 | ev_io *w; |
2251 | |
2309 | |
… | |
… | |
2267 | |
2325 | |
2268 | if (o_reify & EV__IOFDSET) |
2326 | if (o_reify & EV__IOFDSET) |
2269 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2327 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2270 | } |
2328 | } |
2271 | |
2329 | |
|
|
2330 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2331 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2332 | * front and hope the backend handles this case. |
|
|
2333 | */ |
|
|
2334 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2335 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2336 | |
2272 | fdchangecnt = 0; |
2337 | fdchangecnt -= changecnt; |
2273 | } |
2338 | } |
2274 | |
2339 | |
2275 | /* something about the given fd changed */ |
2340 | /* something about the given fd changed */ |
2276 | inline_size |
2341 | inline_size |
2277 | void |
2342 | void |
… | |
… | |
2829 | |
2894 | |
2830 | #endif |
2895 | #endif |
2831 | |
2896 | |
2832 | /*****************************************************************************/ |
2897 | /*****************************************************************************/ |
2833 | |
2898 | |
|
|
2899 | #if EV_USE_TIMERFD |
|
|
2900 | |
|
|
2901 | static void periodics_reschedule (EV_P); |
|
|
2902 | |
|
|
2903 | static void |
|
|
2904 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2905 | { |
|
|
2906 | struct itimerspec its = { 0 }; |
|
|
2907 | |
|
|
2908 | /* since we can't easily come zup with a (portable) maximum value of time_t, |
|
|
2909 | * we wake up once per month, which hopefully is rare enough to not |
|
|
2910 | * be a problem. */ |
|
|
2911 | its.it_value.tv_sec = ev_rt_now + 86400 * 30; |
|
|
2912 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
2913 | |
|
|
2914 | ev_rt_now = ev_time (); |
|
|
2915 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
2916 | /* but maybe in the future we want the full treatment. */ |
|
|
2917 | /* |
|
|
2918 | now_floor = EV_TS_CONST (0.); |
|
|
2919 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
2920 | */ |
|
|
2921 | periodics_reschedule (EV_A); |
|
|
2922 | } |
|
|
2923 | |
|
|
2924 | ecb_noinline ecb_cold |
|
|
2925 | static void |
|
|
2926 | evtimerfd_init (EV_P) |
|
|
2927 | { |
|
|
2928 | if (!ev_is_active (&timerfd_w)) |
|
|
2929 | { |
|
|
2930 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
2931 | |
|
|
2932 | if (timerfd >= 0) |
|
|
2933 | { |
|
|
2934 | fd_intern (timerfd); /* just to be sure */ |
|
|
2935 | |
|
|
2936 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
2937 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
2938 | ev_io_start (EV_A_ &timerfd_w); |
|
|
2939 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2940 | |
|
|
2941 | /* (re-) arm timer */ |
|
|
2942 | timerfdcb (EV_A_ 0, 0); |
|
|
2943 | } |
|
|
2944 | } |
|
|
2945 | } |
|
|
2946 | |
|
|
2947 | #endif |
|
|
2948 | |
|
|
2949 | /*****************************************************************************/ |
|
|
2950 | |
2834 | #if EV_USE_IOCP |
2951 | #if EV_USE_IOCP |
2835 | # include "ev_iocp.c" |
2952 | # include "ev_iocp.c" |
2836 | #endif |
2953 | #endif |
2837 | #if EV_USE_PORT |
2954 | #if EV_USE_PORT |
2838 | # include "ev_port.c" |
2955 | # include "ev_port.c" |
… | |
… | |
2884 | unsigned int |
3001 | unsigned int |
2885 | ev_supported_backends (void) EV_NOEXCEPT |
3002 | ev_supported_backends (void) EV_NOEXCEPT |
2886 | { |
3003 | { |
2887 | unsigned int flags = 0; |
3004 | unsigned int flags = 0; |
2888 | |
3005 | |
2889 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3006 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2890 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
3007 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2891 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3008 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2892 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
3009 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
2893 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
3010 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
2894 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3011 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2895 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
3012 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2896 | |
3013 | |
2897 | return flags; |
3014 | return flags; |
2898 | } |
3015 | } |
2899 | |
3016 | |
2900 | ecb_cold |
3017 | ecb_cold |
2901 | unsigned int |
3018 | unsigned int |
… | |
… | |
2931 | |
3048 | |
2932 | ecb_cold |
3049 | ecb_cold |
2933 | unsigned int |
3050 | unsigned int |
2934 | ev_embeddable_backends (void) EV_NOEXCEPT |
3051 | ev_embeddable_backends (void) EV_NOEXCEPT |
2935 | { |
3052 | { |
2936 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3053 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING; |
2937 | |
3054 | |
2938 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3055 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2939 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3056 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2940 | flags &= ~EVBACKEND_EPOLL; |
3057 | flags &= ~EVBACKEND_EPOLL; |
2941 | |
3058 | |
2942 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
3059 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
2943 | |
|
|
2944 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2945 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2946 | * if the kernel ever is fixed, this might change... |
|
|
2947 | */ |
|
|
2948 | |
3060 | |
2949 | return flags; |
3061 | return flags; |
2950 | } |
3062 | } |
2951 | |
3063 | |
2952 | unsigned int |
3064 | unsigned int |
… | |
… | |
3070 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3182 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3071 | #endif |
3183 | #endif |
3072 | #if EV_USE_SIGNALFD |
3184 | #if EV_USE_SIGNALFD |
3073 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3185 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3074 | #endif |
3186 | #endif |
|
|
3187 | #if EV_USE_TIMERFD |
|
|
3188 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3189 | #endif |
3075 | |
3190 | |
3076 | if (!(flags & EVBACKEND_MASK)) |
3191 | if (!(flags & EVBACKEND_MASK)) |
3077 | flags |= ev_recommended_backends (); |
3192 | flags |= ev_recommended_backends (); |
3078 | |
3193 | |
3079 | #if EV_USE_IOCP |
3194 | #if EV_USE_IOCP |
… | |
… | |
3150 | } |
3265 | } |
3151 | |
3266 | |
3152 | #if EV_USE_SIGNALFD |
3267 | #if EV_USE_SIGNALFD |
3153 | if (ev_is_active (&sigfd_w)) |
3268 | if (ev_is_active (&sigfd_w)) |
3154 | close (sigfd); |
3269 | close (sigfd); |
|
|
3270 | #endif |
|
|
3271 | |
|
|
3272 | #if EV_USE_TIMERFD |
|
|
3273 | if (ev_is_active (&timerfd_w)) |
|
|
3274 | close (timerfd); |
3155 | #endif |
3275 | #endif |
3156 | |
3276 | |
3157 | #if EV_USE_INOTIFY |
3277 | #if EV_USE_INOTIFY |
3158 | if (fs_fd >= 0) |
3278 | if (fs_fd >= 0) |
3159 | close (fs_fd); |
3279 | close (fs_fd); |
… | |
… | |
3252 | #endif |
3372 | #endif |
3253 | #if EV_USE_INOTIFY |
3373 | #if EV_USE_INOTIFY |
3254 | infy_fork (EV_A); |
3374 | infy_fork (EV_A); |
3255 | #endif |
3375 | #endif |
3256 | |
3376 | |
|
|
3377 | if (postfork != 2) |
|
|
3378 | { |
|
|
3379 | #if EV_USE_SIGNALFD |
|
|
3380 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3381 | #endif |
|
|
3382 | |
|
|
3383 | #if EV_USE_TIMERFD |
|
|
3384 | if (ev_is_active (&timerfd_w)) |
|
|
3385 | { |
|
|
3386 | ev_ref (EV_A); |
|
|
3387 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3388 | |
|
|
3389 | close (timerfd); |
|
|
3390 | timerfd = -2; |
|
|
3391 | |
|
|
3392 | evtimerfd_init (EV_A); |
|
|
3393 | /* reschedule periodics, in case we missed something */ |
|
|
3394 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3395 | } |
|
|
3396 | #endif |
|
|
3397 | |
3257 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3398 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3258 | if (ev_is_active (&pipe_w) && postfork != 2) |
3399 | if (ev_is_active (&pipe_w)) |
3259 | { |
3400 | { |
3260 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3401 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3261 | |
3402 | |
3262 | ev_ref (EV_A); |
3403 | ev_ref (EV_A); |
3263 | ev_io_stop (EV_A_ &pipe_w); |
3404 | ev_io_stop (EV_A_ &pipe_w); |
3264 | |
3405 | |
3265 | if (evpipe [0] >= 0) |
3406 | if (evpipe [0] >= 0) |
3266 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3407 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3267 | |
3408 | |
3268 | evpipe_init (EV_A); |
3409 | evpipe_init (EV_A); |
3269 | /* iterate over everything, in case we missed something before */ |
3410 | /* iterate over everything, in case we missed something before */ |
3270 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3411 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3412 | } |
|
|
3413 | #endif |
3271 | } |
3414 | } |
3272 | #endif |
|
|
3273 | |
3415 | |
3274 | postfork = 0; |
3416 | postfork = 0; |
3275 | } |
3417 | } |
3276 | |
3418 | |
3277 | #if EV_MULTIPLICITY |
3419 | #if EV_MULTIPLICITY |
… | |
… | |
3839 | |
3981 | |
3840 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3982 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3841 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3983 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3842 | waittime = timeout_blocktime; |
3984 | waittime = timeout_blocktime; |
3843 | |
3985 | |
3844 | /* at this point, we NEED to wait, so we have to ensure */ |
3986 | /* now there are two more special cases left, either we have |
3845 | /* to pass a minimum nonzero value to the backend */ |
3987 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3988 | * that expire very soon, in which case we need to wait for a minimum |
|
|
3989 | * amount of time for some event loop backends. |
|
|
3990 | */ |
3846 | if (ecb_expect_false (waittime < backend_mintime)) |
3991 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3992 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3993 | ? EV_TS_CONST (0.) |
3847 | waittime = backend_mintime; |
3994 | : backend_mintime; |
3848 | |
3995 | |
3849 | /* extra check because io_blocktime is commonly 0 */ |
3996 | /* extra check because io_blocktime is commonly 0 */ |
3850 | if (ecb_expect_false (io_blocktime)) |
3997 | if (ecb_expect_false (io_blocktime)) |
3851 | { |
3998 | { |
3852 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3999 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
… | |
… | |
4187 | void |
4334 | void |
4188 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4335 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4189 | { |
4336 | { |
4190 | if (ecb_expect_false (ev_is_active (w))) |
4337 | if (ecb_expect_false (ev_is_active (w))) |
4191 | return; |
4338 | return; |
|
|
4339 | |
|
|
4340 | #if EV_USE_TIMERFD |
|
|
4341 | if (timerfd == -2) |
|
|
4342 | evtimerfd_init (EV_A); |
|
|
4343 | #endif |
4192 | |
4344 | |
4193 | if (w->reschedule_cb) |
4345 | if (w->reschedule_cb) |
4194 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4346 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4195 | else if (w->interval) |
4347 | else if (w->interval) |
4196 | { |
4348 | { |
… | |
… | |
4938 | ev_run (EV_A_ EVRUN_NOWAIT); |
5090 | ev_run (EV_A_ EVRUN_NOWAIT); |
4939 | } |
5091 | } |
4940 | } |
5092 | } |
4941 | } |
5093 | } |
4942 | |
5094 | |
|
|
5095 | #if EV_FORK_ENABLE |
4943 | static void |
5096 | static void |
4944 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5097 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
4945 | { |
5098 | { |
4946 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5099 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4947 | |
5100 | |
… | |
… | |
4954 | ev_run (EV_A_ EVRUN_NOWAIT); |
5107 | ev_run (EV_A_ EVRUN_NOWAIT); |
4955 | } |
5108 | } |
4956 | |
5109 | |
4957 | ev_embed_start (EV_A_ w); |
5110 | ev_embed_start (EV_A_ w); |
4958 | } |
5111 | } |
|
|
5112 | #endif |
4959 | |
5113 | |
4960 | #if 0 |
5114 | #if 0 |
4961 | static void |
5115 | static void |
4962 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5116 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4963 | { |
5117 | { |
… | |
… | |
4984 | |
5138 | |
4985 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5139 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4986 | ev_set_priority (&w->prepare, EV_MINPRI); |
5140 | ev_set_priority (&w->prepare, EV_MINPRI); |
4987 | ev_prepare_start (EV_A_ &w->prepare); |
5141 | ev_prepare_start (EV_A_ &w->prepare); |
4988 | |
5142 | |
|
|
5143 | #if EV_FORK_ENABLE |
4989 | ev_fork_init (&w->fork, embed_fork_cb); |
5144 | ev_fork_init (&w->fork, embed_fork_cb); |
4990 | ev_fork_start (EV_A_ &w->fork); |
5145 | ev_fork_start (EV_A_ &w->fork); |
|
|
5146 | #endif |
4991 | |
5147 | |
4992 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5148 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4993 | |
5149 | |
4994 | ev_start (EV_A_ (W)w, 1); |
5150 | ev_start (EV_A_ (W)w, 1); |
4995 | |
5151 | |
… | |
… | |
5005 | |
5161 | |
5006 | EV_FREQUENT_CHECK; |
5162 | EV_FREQUENT_CHECK; |
5007 | |
5163 | |
5008 | ev_io_stop (EV_A_ &w->io); |
5164 | ev_io_stop (EV_A_ &w->io); |
5009 | ev_prepare_stop (EV_A_ &w->prepare); |
5165 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5166 | #if EV_FORK_ENABLE |
5010 | ev_fork_stop (EV_A_ &w->fork); |
5167 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5168 | #endif |
5011 | |
5169 | |
5012 | ev_stop (EV_A_ (W)w); |
5170 | ev_stop (EV_A_ (W)w); |
5013 | |
5171 | |
5014 | EV_FREQUENT_CHECK; |
5172 | EV_FREQUENT_CHECK; |
5015 | } |
5173 | } |