1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
115 | # else |
115 | # else |
116 | # undef EV_USE_EPOLL |
116 | # undef EV_USE_EPOLL |
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 |
|
|
121 | # ifndef EV_USE_LINUXAIO |
|
|
122 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
|
|
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_LINUXAIO |
|
|
126 | # define EV_USE_LINUXAIO 0 |
|
|
127 | # endif |
|
|
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 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
123 | # endif |
141 | # endif |
124 | # else |
142 | # else |
… | |
… | |
159 | # endif |
177 | # endif |
160 | # else |
178 | # else |
161 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
162 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
163 | # endif |
181 | # endif |
164 | |
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 | |
165 | #endif |
192 | #endif |
166 | |
193 | |
167 | /* OS X, in its infinite idiocy, actually HARDCODES |
194 | /* OS X, in its infinite idiocy, actually HARDCODES |
168 | * a limit of 1024 into their select. Where people have brains, |
195 | * a limit of 1024 into their select. Where people have brains, |
169 | * OS X engineers apparently have a vacuum. Or maybe they were |
196 | * OS X engineers apparently have a vacuum. Or maybe they were |
… | |
… | |
315 | |
342 | |
316 | #ifndef EV_USE_PORT |
343 | #ifndef EV_USE_PORT |
317 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
318 | #endif |
345 | #endif |
319 | |
346 | |
|
|
347 | #ifndef EV_USE_LINUXAIO |
|
|
348 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
349 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
|
|
350 | # else |
|
|
351 | # define EV_USE_LINUXAIO 0 |
|
|
352 | # endif |
|
|
353 | #endif |
|
|
354 | |
|
|
355 | #ifndef EV_USE_IOURING |
|
|
356 | # if __linux /* later checks might disable again */ |
|
|
357 | # define EV_USE_IOURING 1 |
|
|
358 | # else |
|
|
359 | # define EV_USE_IOURING 0 |
|
|
360 | # endif |
|
|
361 | #endif |
|
|
362 | |
320 | #ifndef EV_USE_INOTIFY |
363 | #ifndef EV_USE_INOTIFY |
321 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
364 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
322 | # define EV_USE_INOTIFY EV_FEATURE_OS |
365 | # define EV_USE_INOTIFY EV_FEATURE_OS |
323 | # else |
366 | # else |
324 | # define EV_USE_INOTIFY 0 |
367 | # define EV_USE_INOTIFY 0 |
… | |
… | |
344 | #ifndef EV_USE_SIGNALFD |
387 | #ifndef EV_USE_SIGNALFD |
345 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
388 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
346 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
389 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
347 | # else |
390 | # else |
348 | # 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 |
349 | # endif |
400 | # endif |
350 | #endif |
401 | #endif |
351 | |
402 | |
352 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
353 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
… | |
… | |
389 | # include <sys/syscall.h> |
440 | # include <sys/syscall.h> |
390 | # ifdef SYS_clock_gettime |
441 | # ifdef SYS_clock_gettime |
391 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
442 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
392 | # undef EV_USE_MONOTONIC |
443 | # undef EV_USE_MONOTONIC |
393 | # define EV_USE_MONOTONIC 1 |
444 | # define EV_USE_MONOTONIC 1 |
|
|
445 | # define EV_NEED_SYSCALL 1 |
394 | # else |
446 | # else |
395 | # undef EV_USE_CLOCK_SYSCALL |
447 | # undef EV_USE_CLOCK_SYSCALL |
396 | # define EV_USE_CLOCK_SYSCALL 0 |
448 | # define EV_USE_CLOCK_SYSCALL 0 |
397 | # endif |
449 | # endif |
398 | #endif |
450 | #endif |
… | |
… | |
412 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
413 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
414 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
415 | #endif |
467 | #endif |
416 | |
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 | |
417 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
418 | /* 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 */ |
419 | # if !defined _WIN32 && !defined __hpux |
479 | # if !defined _WIN32 && !defined __hpux |
420 | # include <sys/select.h> |
480 | # include <sys/select.h> |
|
|
481 | # endif |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #if EV_USE_LINUXAIO |
|
|
485 | # include <sys/syscall.h> |
|
|
486 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
487 | # define EV_NEED_SYSCALL 1 |
|
|
488 | # else |
|
|
489 | # undef EV_USE_LINUXAIO |
|
|
490 | # define EV_USE_LINUXAIO 0 |
|
|
491 | # endif |
|
|
492 | #endif |
|
|
493 | |
|
|
494 | #if EV_USE_IOURING |
|
|
495 | # include <sys/syscall.h> |
|
|
496 | # if !SYS_io_uring_setup && __linux && !__alpha |
|
|
497 | # define SYS_io_uring_setup 425 |
|
|
498 | # define SYS_io_uring_enter 426 |
|
|
499 | # define SYS_io_uring_wregister 427 |
|
|
500 | # endif |
|
|
501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
502 | # define EV_NEED_SYSCALL 1 |
|
|
503 | # else |
|
|
504 | # undef EV_USE_IOURING |
|
|
505 | # define EV_USE_IOURING 0 |
421 | # endif |
506 | # endif |
422 | #endif |
507 | #endif |
423 | |
508 | |
424 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
425 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
… | |
… | |
430 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
431 | # endif |
516 | # endif |
432 | #endif |
517 | #endif |
433 | |
518 | |
434 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
435 | /* 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 */ |
436 | # include <stdint.h> |
521 | # include <stdint.h> |
437 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
438 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
439 | # endif |
524 | # endif |
440 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
446 | # endif |
531 | # endif |
447 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
448 | #endif |
533 | #endif |
449 | |
534 | |
450 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
451 | /* 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 */ |
452 | # include <stdint.h> |
537 | # include <stdint.h> |
453 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
454 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
455 | # endif |
540 | # endif |
456 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
458 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
459 | # else |
544 | # else |
460 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
461 | # endif |
546 | # endif |
462 | # endif |
547 | # endif |
463 | 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); |
464 | |
549 | |
465 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
466 | { |
551 | { |
467 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
468 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
469 | }; |
554 | }; |
470 | #endif |
555 | #endif |
471 | |
556 | |
472 | /**/ |
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 |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
473 | |
568 | |
474 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
475 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
570 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
476 | #else |
571 | #else |
477 | # define EV_FREQUENT_CHECK do { } while (0) |
572 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
482 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
483 | */ |
578 | */ |
484 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
485 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
486 | |
581 | |
487 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
582 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
488 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
583 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
489 | |
584 | |
|
|
585 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
586 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
587 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
588 | #define EV_TSTAMP_HUGE \ |
|
|
589 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
590 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
591 | : 2147483647.) \ |
|
|
592 | |
|
|
593 | #ifndef EV_TS_CONST |
|
|
594 | # define EV_TS_CONST(nv) nv |
|
|
595 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
596 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
490 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
597 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
491 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
598 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
599 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
600 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
601 | #endif |
492 | |
602 | |
493 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
494 | /* ECB.H BEGIN */ |
604 | /* ECB.H BEGIN */ |
495 | /* |
605 | /* |
496 | * libecb - http://software.schmorp.de/pkg/libecb |
606 | * libecb - http://software.schmorp.de/pkg/libecb |
… | |
… | |
534 | |
644 | |
535 | #ifndef ECB_H |
645 | #ifndef ECB_H |
536 | #define ECB_H |
646 | #define ECB_H |
537 | |
647 | |
538 | /* 16 bits major, 16 bits minor */ |
648 | /* 16 bits major, 16 bits minor */ |
539 | #define ECB_VERSION 0x00010005 |
649 | #define ECB_VERSION 0x00010006 |
540 | |
650 | |
541 | #ifdef _WIN32 |
651 | #ifdef _WIN32 |
542 | typedef signed char int8_t; |
652 | typedef signed char int8_t; |
543 | typedef unsigned char uint8_t; |
653 | typedef unsigned char uint8_t; |
544 | typedef signed short int16_t; |
654 | typedef signed short int16_t; |
… | |
… | |
609 | #define ECB_CLANG_EXTENSION(x) 0 |
719 | #define ECB_CLANG_EXTENSION(x) 0 |
610 | #endif |
720 | #endif |
611 | |
721 | |
612 | #define ECB_CPP (__cplusplus+0) |
722 | #define ECB_CPP (__cplusplus+0) |
613 | #define ECB_CPP11 (__cplusplus >= 201103L) |
723 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
724 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
725 | #define ECB_CPP17 (__cplusplus >= 201703L) |
614 | |
726 | |
615 | #if ECB_CPP |
727 | #if ECB_CPP |
616 | #define ECB_C 0 |
728 | #define ECB_C 0 |
617 | #define ECB_STDC_VERSION 0 |
729 | #define ECB_STDC_VERSION 0 |
618 | #else |
730 | #else |
… | |
… | |
620 | #define ECB_STDC_VERSION __STDC_VERSION__ |
732 | #define ECB_STDC_VERSION __STDC_VERSION__ |
621 | #endif |
733 | #endif |
622 | |
734 | |
623 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
735 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
624 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
736 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
737 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
625 | |
738 | |
626 | #if ECB_CPP |
739 | #if ECB_CPP |
627 | #define ECB_EXTERN_C extern "C" |
740 | #define ECB_EXTERN_C extern "C" |
628 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
741 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
629 | #define ECB_EXTERN_C_END } |
742 | #define ECB_EXTERN_C_END } |
… | |
… | |
655 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
768 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
656 | #endif |
769 | #endif |
657 | |
770 | |
658 | #ifndef ECB_MEMORY_FENCE |
771 | #ifndef ECB_MEMORY_FENCE |
659 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
772 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
773 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
660 | #if __i386 || __i386__ |
774 | #if __i386 || __i386__ |
661 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
775 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
662 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
776 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
663 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
777 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
664 | #elif ECB_GCC_AMD64 |
778 | #elif ECB_GCC_AMD64 |
665 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
779 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
666 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
780 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
667 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
781 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
668 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
782 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
669 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
783 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
670 | #elif defined __ARM_ARCH_2__ \ |
784 | #elif defined __ARM_ARCH_2__ \ |
671 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
785 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
672 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
786 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
… | |
… | |
714 | #if ECB_GCC_VERSION(4,7) |
828 | #if ECB_GCC_VERSION(4,7) |
715 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
829 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
716 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
830 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
717 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
831 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
718 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
832 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
833 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
719 | |
834 | |
720 | #elif ECB_CLANG_EXTENSION(c_atomic) |
835 | #elif ECB_CLANG_EXTENSION(c_atomic) |
721 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
836 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
722 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
837 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
723 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
838 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
724 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
839 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
840 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
725 | |
841 | |
726 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
842 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
727 | #define ECB_MEMORY_FENCE __sync_synchronize () |
843 | #define ECB_MEMORY_FENCE __sync_synchronize () |
728 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
844 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
729 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
845 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
… | |
… | |
739 | #elif defined _WIN32 |
855 | #elif defined _WIN32 |
740 | #include <WinNT.h> |
856 | #include <WinNT.h> |
741 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
857 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
742 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
858 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
743 | #include <mbarrier.h> |
859 | #include <mbarrier.h> |
744 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
860 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
745 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
861 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
746 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
862 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
863 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
747 | #elif __xlC__ |
864 | #elif __xlC__ |
748 | #define ECB_MEMORY_FENCE __sync () |
865 | #define ECB_MEMORY_FENCE __sync () |
749 | #endif |
866 | #endif |
750 | #endif |
867 | #endif |
751 | |
868 | |
752 | #ifndef ECB_MEMORY_FENCE |
869 | #ifndef ECB_MEMORY_FENCE |
753 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
870 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
754 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
871 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
755 | /* not just C11 atomics and atomic accesses */ |
872 | /* not just C11 atomics and atomic accesses */ |
756 | #include <stdatomic.h> |
873 | #include <stdatomic.h> |
757 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
758 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
759 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
760 | /* for most usages, or gcc and clang have a bug */ |
|
|
761 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
762 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
763 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
764 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
765 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
874 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
875 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
766 | #endif |
877 | #endif |
767 | #endif |
878 | #endif |
768 | |
879 | |
769 | #ifndef ECB_MEMORY_FENCE |
880 | #ifndef ECB_MEMORY_FENCE |
770 | #if !ECB_AVOID_PTHREADS |
881 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
788 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
899 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
789 | #endif |
900 | #endif |
790 | |
901 | |
791 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
902 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
792 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
903 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
907 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
793 | #endif |
908 | #endif |
794 | |
909 | |
795 | /*****************************************************************************/ |
910 | /*****************************************************************************/ |
796 | |
911 | |
797 | #if ECB_CPP |
912 | #if ECB_CPP |
… | |
… | |
1506 | /* ECB.H END */ |
1621 | /* ECB.H END */ |
1507 | |
1622 | |
1508 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1623 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1509 | /* if your architecture doesn't need memory fences, e.g. because it is |
1624 | /* if your architecture doesn't need memory fences, e.g. because it is |
1510 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1625 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1511 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1626 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
1512 | * libev, in which cases the memory fences become nops. |
1627 | * libev, in which cases the memory fences become nops. |
1513 | * alternatively, you can remove this #error and link against libpthread, |
1628 | * alternatively, you can remove this #error and link against libpthread, |
1514 | * which will then provide the memory fences. |
1629 | * which will then provide the memory fences. |
1515 | */ |
1630 | */ |
1516 | # error "memory fences not defined for your architecture, please report" |
1631 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1520 | # define ECB_MEMORY_FENCE do { } while (0) |
1635 | # define ECB_MEMORY_FENCE do { } while (0) |
1521 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1636 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1522 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1637 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1523 | #endif |
1638 | #endif |
1524 | |
1639 | |
1525 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1526 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1527 | #define noinline ecb_noinline |
|
|
1528 | |
|
|
1529 | #define inline_size ecb_inline |
1640 | #define inline_size ecb_inline |
1530 | |
1641 | |
1531 | #if EV_FEATURE_CODE |
1642 | #if EV_FEATURE_CODE |
1532 | # define inline_speed ecb_inline |
1643 | # define inline_speed ecb_inline |
1533 | #else |
1644 | #else |
1534 | # define inline_speed noinline static |
1645 | # define inline_speed ecb_noinline static |
1535 | #endif |
1646 | #endif |
|
|
1647 | |
|
|
1648 | /*****************************************************************************/ |
|
|
1649 | /* raw syscall wrappers */ |
|
|
1650 | |
|
|
1651 | #if EV_NEED_SYSCALL |
|
|
1652 | |
|
|
1653 | #include <sys/syscall.h> |
|
|
1654 | |
|
|
1655 | /* |
|
|
1656 | * define some syscall wrappers for common architectures |
|
|
1657 | * this is mostly for nice looks during debugging, not performance. |
|
|
1658 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1659 | * enough for linux aio. |
|
|
1660 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1661 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1662 | */ |
|
|
1663 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
|
|
1664 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1665 | |
|
|
1666 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1667 | ({ \ |
|
|
1668 | long res; \ |
|
|
1669 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1670 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1671 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1672 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1673 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1674 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1675 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1676 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1677 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1678 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1679 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1680 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1681 | __asm__ __volatile__ ( \ |
|
|
1682 | "syscall\n\t" \ |
|
|
1683 | : "=a" (res) \ |
|
|
1684 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1685 | : "cc", "r11", "cx", "memory"); \ |
|
|
1686 | errno = -res; \ |
|
|
1687 | res; \ |
|
|
1688 | }) |
|
|
1689 | |
|
|
1690 | #endif |
|
|
1691 | |
|
|
1692 | #ifdef ev_syscall |
|
|
1693 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1694 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1695 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1696 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1697 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1698 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1699 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1700 | #else |
|
|
1701 | #define ev_syscall0(nr) syscall (nr) |
|
|
1702 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1703 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1704 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1705 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1706 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1707 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1708 | #endif |
|
|
1709 | |
|
|
1710 | #endif |
|
|
1711 | |
|
|
1712 | /*****************************************************************************/ |
1536 | |
1713 | |
1537 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1714 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1538 | |
1715 | |
1539 | #if EV_MINPRI == EV_MAXPRI |
1716 | #if EV_MINPRI == EV_MAXPRI |
1540 | # define ABSPRI(w) (((W)w), 0) |
1717 | # define ABSPRI(w) (((W)w), 0) |
1541 | #else |
1718 | #else |
1542 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1719 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1543 | #endif |
1720 | #endif |
1544 | |
1721 | |
1545 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1722 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1546 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1547 | |
1723 | |
1548 | typedef ev_watcher *W; |
1724 | typedef ev_watcher *W; |
1549 | typedef ev_watcher_list *WL; |
1725 | typedef ev_watcher_list *WL; |
1550 | typedef ev_watcher_time *WT; |
1726 | typedef ev_watcher_time *WT; |
1551 | |
1727 | |
… | |
… | |
1576 | # include "ev_win32.c" |
1752 | # include "ev_win32.c" |
1577 | #endif |
1753 | #endif |
1578 | |
1754 | |
1579 | /*****************************************************************************/ |
1755 | /*****************************************************************************/ |
1580 | |
1756 | |
|
|
1757 | #if EV_USE_LINUXAIO |
|
|
1758 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1759 | #endif |
|
|
1760 | |
1581 | /* define a suitable floor function (only used by periodics atm) */ |
1761 | /* define a suitable floor function (only used by periodics atm) */ |
1582 | |
1762 | |
1583 | #if EV_USE_FLOOR |
1763 | #if EV_USE_FLOOR |
1584 | # include <math.h> |
1764 | # include <math.h> |
1585 | # define ev_floor(v) floor (v) |
1765 | # define ev_floor(v) floor (v) |
1586 | #else |
1766 | #else |
1587 | |
1767 | |
1588 | #include <float.h> |
1768 | #include <float.h> |
1589 | |
1769 | |
1590 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1770 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1591 | noinline |
1771 | ecb_noinline |
1592 | static ev_tstamp |
1772 | static ev_tstamp |
1593 | ev_floor (ev_tstamp v) |
1773 | ev_floor (ev_tstamp v) |
1594 | { |
1774 | { |
1595 | /* the choice of shift factor is not terribly important */ |
1775 | /* the choice of shift factor is not terribly important */ |
1596 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1776 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1597 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1777 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1598 | #else |
1778 | #else |
1599 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1779 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1600 | #endif |
1780 | #endif |
1601 | |
1781 | |
|
|
1782 | /* special treatment for negative arguments */ |
|
|
1783 | if (ecb_expect_false (v < 0.)) |
|
|
1784 | { |
|
|
1785 | ev_tstamp f = -ev_floor (-v); |
|
|
1786 | |
|
|
1787 | return f - (f == v ? 0 : 1); |
|
|
1788 | } |
|
|
1789 | |
1602 | /* argument too large for an unsigned long? */ |
1790 | /* argument too large for an unsigned long? then reduce it */ |
1603 | if (expect_false (v >= shift)) |
1791 | if (ecb_expect_false (v >= shift)) |
1604 | { |
1792 | { |
1605 | ev_tstamp f; |
1793 | ev_tstamp f; |
1606 | |
1794 | |
1607 | if (v == v - 1.) |
1795 | if (v == v - 1.) |
1608 | return v; /* very large number */ |
1796 | return v; /* very large numbers are assumed to be integer */ |
1609 | |
1797 | |
1610 | f = shift * ev_floor (v * (1. / shift)); |
1798 | f = shift * ev_floor (v * (1. / shift)); |
1611 | return f + ev_floor (v - f); |
1799 | return f + ev_floor (v - f); |
1612 | } |
1800 | } |
1613 | |
1801 | |
1614 | /* special treatment for negative args? */ |
|
|
1615 | if (expect_false (v < 0.)) |
|
|
1616 | { |
|
|
1617 | ev_tstamp f = -ev_floor (-v); |
|
|
1618 | |
|
|
1619 | return f - (f == v ? 0 : 1); |
|
|
1620 | } |
|
|
1621 | |
|
|
1622 | /* fits into an unsigned long */ |
1802 | /* fits into an unsigned long */ |
1623 | return (unsigned long)v; |
1803 | return (unsigned long)v; |
1624 | } |
1804 | } |
1625 | |
1805 | |
1626 | #endif |
1806 | #endif |
… | |
… | |
1629 | |
1809 | |
1630 | #ifdef __linux |
1810 | #ifdef __linux |
1631 | # include <sys/utsname.h> |
1811 | # include <sys/utsname.h> |
1632 | #endif |
1812 | #endif |
1633 | |
1813 | |
1634 | noinline ecb_cold |
1814 | ecb_noinline ecb_cold |
1635 | static unsigned int |
1815 | static unsigned int |
1636 | ev_linux_version (void) |
1816 | ev_linux_version (void) |
1637 | { |
1817 | { |
1638 | #ifdef __linux |
1818 | #ifdef __linux |
1639 | unsigned int v = 0; |
1819 | unsigned int v = 0; |
… | |
… | |
1669 | } |
1849 | } |
1670 | |
1850 | |
1671 | /*****************************************************************************/ |
1851 | /*****************************************************************************/ |
1672 | |
1852 | |
1673 | #if EV_AVOID_STDIO |
1853 | #if EV_AVOID_STDIO |
1674 | noinline ecb_cold |
1854 | ecb_noinline ecb_cold |
1675 | static void |
1855 | static void |
1676 | ev_printerr (const char *msg) |
1856 | ev_printerr (const char *msg) |
1677 | { |
1857 | { |
1678 | write (STDERR_FILENO, msg, strlen (msg)); |
1858 | write (STDERR_FILENO, msg, strlen (msg)); |
1679 | } |
1859 | } |
… | |
… | |
1686 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1866 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1687 | { |
1867 | { |
1688 | syserr_cb = cb; |
1868 | syserr_cb = cb; |
1689 | } |
1869 | } |
1690 | |
1870 | |
1691 | noinline ecb_cold |
1871 | ecb_noinline ecb_cold |
1692 | static void |
1872 | static void |
1693 | ev_syserr (const char *msg) |
1873 | ev_syserr (const char *msg) |
1694 | { |
1874 | { |
1695 | if (!msg) |
1875 | if (!msg) |
1696 | msg = "(libev) system error"; |
1876 | msg = "(libev) system error"; |
… | |
… | |
1767 | typedef struct |
1947 | typedef struct |
1768 | { |
1948 | { |
1769 | WL head; |
1949 | WL head; |
1770 | unsigned char events; /* the events watched for */ |
1950 | unsigned char events; /* the events watched for */ |
1771 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1951 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1772 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1952 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1773 | unsigned char unused; |
1953 | unsigned char eflags; /* flags field for use by backends */ |
1774 | #if EV_USE_EPOLL |
1954 | #if EV_USE_EPOLL |
1775 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1955 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1776 | #endif |
1956 | #endif |
1777 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1957 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1778 | SOCKET handle; |
1958 | SOCKET handle; |
… | |
… | |
1832 | static struct ev_loop default_loop_struct; |
2012 | static struct ev_loop default_loop_struct; |
1833 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
2013 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1834 | |
2014 | |
1835 | #else |
2015 | #else |
1836 | |
2016 | |
1837 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
2017 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
1838 | #define VAR(name,decl) static decl; |
2018 | #define VAR(name,decl) static decl; |
1839 | #include "ev_vars.h" |
2019 | #include "ev_vars.h" |
1840 | #undef VAR |
2020 | #undef VAR |
1841 | |
2021 | |
1842 | static int ev_default_loop_ptr; |
2022 | static int ev_default_loop_ptr; |
1843 | |
2023 | |
1844 | #endif |
2024 | #endif |
1845 | |
2025 | |
1846 | #if EV_FEATURE_API |
2026 | #if EV_FEATURE_API |
1847 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2027 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1848 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2028 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1849 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2029 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1850 | #else |
2030 | #else |
1851 | # define EV_RELEASE_CB (void)0 |
2031 | # define EV_RELEASE_CB (void)0 |
1852 | # define EV_ACQUIRE_CB (void)0 |
2032 | # define EV_ACQUIRE_CB (void)0 |
1853 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2033 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1860 | #ifndef EV_HAVE_EV_TIME |
2040 | #ifndef EV_HAVE_EV_TIME |
1861 | ev_tstamp |
2041 | ev_tstamp |
1862 | ev_time (void) EV_NOEXCEPT |
2042 | ev_time (void) EV_NOEXCEPT |
1863 | { |
2043 | { |
1864 | #if EV_USE_REALTIME |
2044 | #if EV_USE_REALTIME |
1865 | if (expect_true (have_realtime)) |
2045 | if (ecb_expect_true (have_realtime)) |
1866 | { |
2046 | { |
1867 | struct timespec ts; |
2047 | struct timespec ts; |
1868 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
1869 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2049 | return EV_TS_GET (ts); |
1870 | } |
2050 | } |
1871 | #endif |
2051 | #endif |
1872 | |
2052 | |
|
|
2053 | { |
1873 | struct timeval tv; |
2054 | struct timeval tv; |
1874 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
1875 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
1876 | } |
2058 | } |
1877 | #endif |
2059 | #endif |
1878 | |
2060 | |
1879 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
1880 | get_clock (void) |
2062 | get_clock (void) |
1881 | { |
2063 | { |
1882 | #if EV_USE_MONOTONIC |
2064 | #if EV_USE_MONOTONIC |
1883 | if (expect_true (have_monotonic)) |
2065 | if (ecb_expect_true (have_monotonic)) |
1884 | { |
2066 | { |
1885 | struct timespec ts; |
2067 | struct timespec ts; |
1886 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2068 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1887 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2069 | return EV_TS_GET (ts); |
1888 | } |
2070 | } |
1889 | #endif |
2071 | #endif |
1890 | |
2072 | |
1891 | return ev_time (); |
2073 | return ev_time (); |
1892 | } |
2074 | } |
… | |
… | |
1900 | #endif |
2082 | #endif |
1901 | |
2083 | |
1902 | void |
2084 | void |
1903 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
2085 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1904 | { |
2086 | { |
1905 | if (delay > 0.) |
2087 | if (delay > EV_TS_CONST (0.)) |
1906 | { |
2088 | { |
1907 | #if EV_USE_NANOSLEEP |
2089 | #if EV_USE_NANOSLEEP |
1908 | struct timespec ts; |
2090 | struct timespec ts; |
1909 | |
2091 | |
1910 | EV_TS_SET (ts, delay); |
2092 | EV_TS_SET (ts, delay); |
1911 | nanosleep (&ts, 0); |
2093 | nanosleep (&ts, 0); |
1912 | #elif defined _WIN32 |
2094 | #elif defined _WIN32 |
1913 | /* maybe this should round up, as ms is very low resolution */ |
2095 | /* maybe this should round up, as ms is very low resolution */ |
1914 | /* compared to select (µs) or nanosleep (ns) */ |
2096 | /* compared to select (µs) or nanosleep (ns) */ |
1915 | Sleep ((unsigned long)(delay * 1e3)); |
2097 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1916 | #else |
2098 | #else |
1917 | struct timeval tv; |
2099 | struct timeval tv; |
1918 | |
2100 | |
1919 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2101 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1920 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2102 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1950 | } |
2132 | } |
1951 | |
2133 | |
1952 | return ncur; |
2134 | return ncur; |
1953 | } |
2135 | } |
1954 | |
2136 | |
1955 | noinline ecb_cold |
2137 | ecb_noinline ecb_cold |
1956 | static void * |
2138 | static void * |
1957 | array_realloc (int elem, void *base, int *cur, int cnt) |
2139 | array_realloc (int elem, void *base, int *cur, int cnt) |
1958 | { |
2140 | { |
1959 | *cur = array_nextsize (elem, *cur, cnt); |
2141 | *cur = array_nextsize (elem, *cur, cnt); |
1960 | return ev_realloc (base, elem * *cur); |
2142 | return ev_realloc (base, elem * *cur); |
1961 | } |
2143 | } |
1962 | |
2144 | |
|
|
2145 | #define array_needsize_noinit(base,offset,count) |
|
|
2146 | |
1963 | #define array_init_zero(base,count) \ |
2147 | #define array_needsize_zerofill(base,offset,count) \ |
1964 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2148 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1965 | |
2149 | |
1966 | #define array_needsize(type,base,cur,cnt,init) \ |
2150 | #define array_needsize(type,base,cur,cnt,init) \ |
1967 | if (expect_false ((cnt) > (cur))) \ |
2151 | if (ecb_expect_false ((cnt) > (cur))) \ |
1968 | { \ |
2152 | { \ |
1969 | ecb_unused int ocur_ = (cur); \ |
2153 | ecb_unused int ocur_ = (cur); \ |
1970 | (base) = (type *)array_realloc \ |
2154 | (base) = (type *)array_realloc \ |
1971 | (sizeof (type), (base), &(cur), (cnt)); \ |
2155 | (sizeof (type), (base), &(cur), (cnt)); \ |
1972 | init ((base) + (ocur_), (cur) - ocur_); \ |
2156 | init ((base), ocur_, ((cur) - ocur_)); \ |
1973 | } |
2157 | } |
1974 | |
2158 | |
1975 | #if 0 |
2159 | #if 0 |
1976 | #define array_slim(type,stem) \ |
2160 | #define array_slim(type,stem) \ |
1977 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2161 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1986 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2170 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1987 | |
2171 | |
1988 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
1989 | |
2173 | |
1990 | /* dummy callback for pending events */ |
2174 | /* dummy callback for pending events */ |
1991 | noinline |
2175 | ecb_noinline |
1992 | static void |
2176 | static void |
1993 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2177 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1994 | { |
2178 | { |
1995 | } |
2179 | } |
1996 | |
2180 | |
1997 | noinline |
2181 | ecb_noinline |
1998 | void |
2182 | void |
1999 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
2183 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
2000 | { |
2184 | { |
2001 | W w_ = (W)w; |
2185 | W w_ = (W)w; |
2002 | int pri = ABSPRI (w_); |
2186 | int pri = ABSPRI (w_); |
2003 | |
2187 | |
2004 | if (expect_false (w_->pending)) |
2188 | if (ecb_expect_false (w_->pending)) |
2005 | pendings [pri][w_->pending - 1].events |= revents; |
2189 | pendings [pri][w_->pending - 1].events |= revents; |
2006 | else |
2190 | else |
2007 | { |
2191 | { |
2008 | w_->pending = ++pendingcnt [pri]; |
2192 | w_->pending = ++pendingcnt [pri]; |
2009 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2193 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
2010 | pendings [pri][w_->pending - 1].w = w_; |
2194 | pendings [pri][w_->pending - 1].w = w_; |
2011 | pendings [pri][w_->pending - 1].events = revents; |
2195 | pendings [pri][w_->pending - 1].events = revents; |
2012 | } |
2196 | } |
2013 | |
2197 | |
2014 | pendingpri = NUMPRI - 1; |
2198 | pendingpri = NUMPRI - 1; |
2015 | } |
2199 | } |
2016 | |
2200 | |
2017 | inline_speed void |
2201 | inline_speed void |
2018 | feed_reverse (EV_P_ W w) |
2202 | feed_reverse (EV_P_ W w) |
2019 | { |
2203 | { |
2020 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2204 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
2021 | rfeeds [rfeedcnt++] = w; |
2205 | rfeeds [rfeedcnt++] = w; |
2022 | } |
2206 | } |
2023 | |
2207 | |
2024 | inline_size void |
2208 | inline_size void |
2025 | feed_reverse_done (EV_P_ int revents) |
2209 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
2060 | inline_speed void |
2244 | inline_speed void |
2061 | fd_event (EV_P_ int fd, int revents) |
2245 | fd_event (EV_P_ int fd, int revents) |
2062 | { |
2246 | { |
2063 | ANFD *anfd = anfds + fd; |
2247 | ANFD *anfd = anfds + fd; |
2064 | |
2248 | |
2065 | if (expect_true (!anfd->reify)) |
2249 | if (ecb_expect_true (!anfd->reify)) |
2066 | fd_event_nocheck (EV_A_ fd, revents); |
2250 | fd_event_nocheck (EV_A_ fd, revents); |
2067 | } |
2251 | } |
2068 | |
2252 | |
2069 | void |
2253 | void |
2070 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
2254 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
… | |
… | |
2078 | inline_size void |
2262 | inline_size void |
2079 | fd_reify (EV_P) |
2263 | fd_reify (EV_P) |
2080 | { |
2264 | { |
2081 | int i; |
2265 | int i; |
2082 | |
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 | |
2083 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2279 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2084 | for (i = 0; i < fdchangecnt; ++i) |
2280 | for (i = 0; i < changecnt; ++i) |
2085 | { |
2281 | { |
2086 | int fd = fdchanges [i]; |
2282 | int fd = fdchanges [i]; |
2087 | ANFD *anfd = anfds + fd; |
2283 | ANFD *anfd = anfds + fd; |
2088 | |
2284 | |
2089 | if (anfd->reify & EV__IOFDSET && anfd->head) |
2285 | if (anfd->reify & EV__IOFDSET && anfd->head) |
… | |
… | |
2103 | } |
2299 | } |
2104 | } |
2300 | } |
2105 | } |
2301 | } |
2106 | #endif |
2302 | #endif |
2107 | |
2303 | |
2108 | for (i = 0; i < fdchangecnt; ++i) |
2304 | for (i = 0; i < changecnt; ++i) |
2109 | { |
2305 | { |
2110 | int fd = fdchanges [i]; |
2306 | int fd = fdchanges [i]; |
2111 | ANFD *anfd = anfds + fd; |
2307 | ANFD *anfd = anfds + fd; |
2112 | ev_io *w; |
2308 | ev_io *w; |
2113 | |
2309 | |
2114 | unsigned char o_events = anfd->events; |
2310 | unsigned char o_events = anfd->events; |
2115 | unsigned char o_reify = anfd->reify; |
2311 | unsigned char o_reify = anfd->reify; |
2116 | |
2312 | |
2117 | anfd->reify = 0; |
2313 | anfd->reify = 0; |
2118 | |
2314 | |
2119 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2315 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2120 | { |
2316 | { |
2121 | anfd->events = 0; |
2317 | anfd->events = 0; |
2122 | |
2318 | |
2123 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2319 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2124 | anfd->events |= (unsigned char)w->events; |
2320 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
2129 | |
2325 | |
2130 | if (o_reify & EV__IOFDSET) |
2326 | if (o_reify & EV__IOFDSET) |
2131 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2327 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2132 | } |
2328 | } |
2133 | |
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 | |
2134 | fdchangecnt = 0; |
2337 | fdchangecnt -= changecnt; |
2135 | } |
2338 | } |
2136 | |
2339 | |
2137 | /* something about the given fd changed */ |
2340 | /* something about the given fd changed */ |
2138 | inline_size |
2341 | inline_size |
2139 | void |
2342 | void |
2140 | fd_change (EV_P_ int fd, int flags) |
2343 | fd_change (EV_P_ int fd, int flags) |
2141 | { |
2344 | { |
2142 | unsigned char reify = anfds [fd].reify; |
2345 | unsigned char reify = anfds [fd].reify; |
2143 | anfds [fd].reify |= flags; |
2346 | anfds [fd].reify |= flags; |
2144 | |
2347 | |
2145 | if (expect_true (!reify)) |
2348 | if (ecb_expect_true (!reify)) |
2146 | { |
2349 | { |
2147 | ++fdchangecnt; |
2350 | ++fdchangecnt; |
2148 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2351 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
2149 | fdchanges [fdchangecnt - 1] = fd; |
2352 | fdchanges [fdchangecnt - 1] = fd; |
2150 | } |
2353 | } |
2151 | } |
2354 | } |
2152 | |
2355 | |
2153 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2356 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
… | |
… | |
2173 | return fcntl (fd, F_GETFD) != -1; |
2376 | return fcntl (fd, F_GETFD) != -1; |
2174 | #endif |
2377 | #endif |
2175 | } |
2378 | } |
2176 | |
2379 | |
2177 | /* called on EBADF to verify fds */ |
2380 | /* called on EBADF to verify fds */ |
2178 | noinline ecb_cold |
2381 | ecb_noinline ecb_cold |
2179 | static void |
2382 | static void |
2180 | fd_ebadf (EV_P) |
2383 | fd_ebadf (EV_P) |
2181 | { |
2384 | { |
2182 | int fd; |
2385 | int fd; |
2183 | |
2386 | |
… | |
… | |
2186 | if (!fd_valid (fd) && errno == EBADF) |
2389 | if (!fd_valid (fd) && errno == EBADF) |
2187 | fd_kill (EV_A_ fd); |
2390 | fd_kill (EV_A_ fd); |
2188 | } |
2391 | } |
2189 | |
2392 | |
2190 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2393 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2191 | noinline ecb_cold |
2394 | ecb_noinline ecb_cold |
2192 | static void |
2395 | static void |
2193 | fd_enomem (EV_P) |
2396 | fd_enomem (EV_P) |
2194 | { |
2397 | { |
2195 | int fd; |
2398 | int fd; |
2196 | |
2399 | |
… | |
… | |
2201 | break; |
2404 | break; |
2202 | } |
2405 | } |
2203 | } |
2406 | } |
2204 | |
2407 | |
2205 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2408 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2206 | noinline |
2409 | ecb_noinline |
2207 | static void |
2410 | static void |
2208 | fd_rearm_all (EV_P) |
2411 | fd_rearm_all (EV_P) |
2209 | { |
2412 | { |
2210 | int fd; |
2413 | int fd; |
2211 | |
2414 | |
… | |
… | |
2265 | ev_tstamp minat; |
2468 | ev_tstamp minat; |
2266 | ANHE *minpos; |
2469 | ANHE *minpos; |
2267 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2470 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2268 | |
2471 | |
2269 | /* find minimum child */ |
2472 | /* find minimum child */ |
2270 | if (expect_true (pos + DHEAP - 1 < E)) |
2473 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
2271 | { |
2474 | { |
2272 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2475 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2273 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2476 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2274 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2477 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2275 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2478 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2276 | } |
2479 | } |
2277 | else if (pos < E) |
2480 | else if (pos < E) |
2278 | { |
2481 | { |
2279 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2482 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2280 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2483 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2281 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2484 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2282 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2485 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2283 | } |
2486 | } |
2284 | else |
2487 | else |
2285 | break; |
2488 | break; |
2286 | |
2489 | |
2287 | if (ANHE_at (he) <= minat) |
2490 | if (ANHE_at (he) <= minat) |
… | |
… | |
2295 | |
2498 | |
2296 | heap [k] = he; |
2499 | heap [k] = he; |
2297 | ev_active (ANHE_w (he)) = k; |
2500 | ev_active (ANHE_w (he)) = k; |
2298 | } |
2501 | } |
2299 | |
2502 | |
2300 | #else /* 4HEAP */ |
2503 | #else /* not 4HEAP */ |
2301 | |
2504 | |
2302 | #define HEAP0 1 |
2505 | #define HEAP0 1 |
2303 | #define HPARENT(k) ((k) >> 1) |
2506 | #define HPARENT(k) ((k) >> 1) |
2304 | #define UPHEAP_DONE(p,k) (!(p)) |
2507 | #define UPHEAP_DONE(p,k) (!(p)) |
2305 | |
2508 | |
… | |
… | |
2393 | |
2596 | |
2394 | /*****************************************************************************/ |
2597 | /*****************************************************************************/ |
2395 | |
2598 | |
2396 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2599 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2397 | |
2600 | |
2398 | noinline ecb_cold |
2601 | ecb_noinline ecb_cold |
2399 | static void |
2602 | static void |
2400 | evpipe_init (EV_P) |
2603 | evpipe_init (EV_P) |
2401 | { |
2604 | { |
2402 | if (!ev_is_active (&pipe_w)) |
2605 | if (!ev_is_active (&pipe_w)) |
2403 | { |
2606 | { |
… | |
… | |
2444 | inline_speed void |
2647 | inline_speed void |
2445 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2648 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2446 | { |
2649 | { |
2447 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2650 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2448 | |
2651 | |
2449 | if (expect_true (*flag)) |
2652 | if (ecb_expect_true (*flag)) |
2450 | return; |
2653 | return; |
2451 | |
2654 | |
2452 | *flag = 1; |
2655 | *flag = 1; |
2453 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2656 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2454 | |
2657 | |
… | |
… | |
2531 | sig_pending = 0; |
2734 | sig_pending = 0; |
2532 | |
2735 | |
2533 | ECB_MEMORY_FENCE; |
2736 | ECB_MEMORY_FENCE; |
2534 | |
2737 | |
2535 | for (i = EV_NSIG - 1; i--; ) |
2738 | for (i = EV_NSIG - 1; i--; ) |
2536 | if (expect_false (signals [i].pending)) |
2739 | if (ecb_expect_false (signals [i].pending)) |
2537 | ev_feed_signal_event (EV_A_ i + 1); |
2740 | ev_feed_signal_event (EV_A_ i + 1); |
2538 | } |
2741 | } |
2539 | #endif |
2742 | #endif |
2540 | |
2743 | |
2541 | #if EV_ASYNC_ENABLE |
2744 | #if EV_ASYNC_ENABLE |
… | |
… | |
2582 | #endif |
2785 | #endif |
2583 | |
2786 | |
2584 | ev_feed_signal (signum); |
2787 | ev_feed_signal (signum); |
2585 | } |
2788 | } |
2586 | |
2789 | |
2587 | noinline |
2790 | ecb_noinline |
2588 | void |
2791 | void |
2589 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2792 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2590 | { |
2793 | { |
2591 | WL w; |
2794 | WL w; |
2592 | |
2795 | |
2593 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2796 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2594 | return; |
2797 | return; |
2595 | |
2798 | |
2596 | --signum; |
2799 | --signum; |
2597 | |
2800 | |
2598 | #if EV_MULTIPLICITY |
2801 | #if EV_MULTIPLICITY |
2599 | /* it is permissible to try to feed a signal to the wrong loop */ |
2802 | /* it is permissible to try to feed a signal to the wrong loop */ |
2600 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2803 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2601 | |
2804 | |
2602 | if (expect_false (signals [signum].loop != EV_A)) |
2805 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2603 | return; |
2806 | return; |
2604 | #endif |
2807 | #endif |
2605 | |
2808 | |
2606 | signals [signum].pending = 0; |
2809 | signals [signum].pending = 0; |
2607 | ECB_MEMORY_FENCE_RELEASE; |
2810 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2691 | |
2894 | |
2692 | #endif |
2895 | #endif |
2693 | |
2896 | |
2694 | /*****************************************************************************/ |
2897 | /*****************************************************************************/ |
2695 | |
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 | |
2696 | #if EV_USE_IOCP |
2951 | #if EV_USE_IOCP |
2697 | # include "ev_iocp.c" |
2952 | # include "ev_iocp.c" |
2698 | #endif |
2953 | #endif |
2699 | #if EV_USE_PORT |
2954 | #if EV_USE_PORT |
2700 | # include "ev_port.c" |
2955 | # include "ev_port.c" |
… | |
… | |
2702 | #if EV_USE_KQUEUE |
2957 | #if EV_USE_KQUEUE |
2703 | # include "ev_kqueue.c" |
2958 | # include "ev_kqueue.c" |
2704 | #endif |
2959 | #endif |
2705 | #if EV_USE_EPOLL |
2960 | #if EV_USE_EPOLL |
2706 | # include "ev_epoll.c" |
2961 | # include "ev_epoll.c" |
|
|
2962 | #endif |
|
|
2963 | #if EV_USE_LINUXAIO |
|
|
2964 | # include "ev_linuxaio.c" |
|
|
2965 | #endif |
|
|
2966 | #if EV_USE_IOURING |
|
|
2967 | # include "ev_iouring.c" |
2707 | #endif |
2968 | #endif |
2708 | #if EV_USE_POLL |
2969 | #if EV_USE_POLL |
2709 | # include "ev_poll.c" |
2970 | # include "ev_poll.c" |
2710 | #endif |
2971 | #endif |
2711 | #if EV_USE_SELECT |
2972 | #if EV_USE_SELECT |
… | |
… | |
2740 | unsigned int |
3001 | unsigned int |
2741 | ev_supported_backends (void) EV_NOEXCEPT |
3002 | ev_supported_backends (void) EV_NOEXCEPT |
2742 | { |
3003 | { |
2743 | unsigned int flags = 0; |
3004 | unsigned int flags = 0; |
2744 | |
3005 | |
2745 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3006 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2746 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
3007 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2747 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3008 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2748 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3009 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
2749 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
3010 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
2750 | |
3011 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
3012 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
|
|
3013 | |
2751 | return flags; |
3014 | return flags; |
2752 | } |
3015 | } |
2753 | |
3016 | |
2754 | ecb_cold |
3017 | ecb_cold |
2755 | unsigned int |
3018 | unsigned int |
… | |
… | |
2769 | #endif |
3032 | #endif |
2770 | #ifdef __FreeBSD__ |
3033 | #ifdef __FreeBSD__ |
2771 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3034 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2772 | #endif |
3035 | #endif |
2773 | |
3036 | |
|
|
3037 | /* TODO: linuxaio is very experimental */ |
|
|
3038 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3039 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3040 | #endif |
|
|
3041 | /* TODO: linuxaio is super experimental */ |
|
|
3042 | #if !EV_RECOMMEND_IOURING |
|
|
3043 | flags &= ~EVBACKEND_IOURING; |
|
|
3044 | #endif |
|
|
3045 | |
2774 | return flags; |
3046 | return flags; |
2775 | } |
3047 | } |
2776 | |
3048 | |
2777 | ecb_cold |
3049 | ecb_cold |
2778 | unsigned int |
3050 | unsigned int |
2779 | ev_embeddable_backends (void) EV_NOEXCEPT |
3051 | ev_embeddable_backends (void) EV_NOEXCEPT |
2780 | { |
3052 | { |
2781 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3053 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING; |
2782 | |
3054 | |
2783 | /* 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 */ |
2784 | 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 */ |
2785 | flags &= ~EVBACKEND_EPOLL; |
3057 | flags &= ~EVBACKEND_EPOLL; |
2786 | |
3058 | |
|
|
3059 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3060 | |
2787 | return flags; |
3061 | return flags; |
2788 | } |
3062 | } |
2789 | |
3063 | |
2790 | unsigned int |
3064 | unsigned int |
2791 | ev_backend (EV_P) EV_NOEXCEPT |
3065 | ev_backend (EV_P) EV_NOEXCEPT |
… | |
… | |
2843 | acquire_cb = acquire; |
3117 | acquire_cb = acquire; |
2844 | } |
3118 | } |
2845 | #endif |
3119 | #endif |
2846 | |
3120 | |
2847 | /* initialise a loop structure, must be zero-initialised */ |
3121 | /* initialise a loop structure, must be zero-initialised */ |
2848 | noinline ecb_cold |
3122 | ecb_noinline ecb_cold |
2849 | static void |
3123 | static void |
2850 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
3124 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2851 | { |
3125 | { |
2852 | if (!backend) |
3126 | if (!backend) |
2853 | { |
3127 | { |
… | |
… | |
2908 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3182 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2909 | #endif |
3183 | #endif |
2910 | #if EV_USE_SIGNALFD |
3184 | #if EV_USE_SIGNALFD |
2911 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3185 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2912 | #endif |
3186 | #endif |
|
|
3187 | #if EV_USE_TIMERFD |
|
|
3188 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3189 | #endif |
2913 | |
3190 | |
2914 | if (!(flags & EVBACKEND_MASK)) |
3191 | if (!(flags & EVBACKEND_MASK)) |
2915 | flags |= ev_recommended_backends (); |
3192 | flags |= ev_recommended_backends (); |
2916 | |
3193 | |
2917 | #if EV_USE_IOCP |
3194 | #if EV_USE_IOCP |
2918 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3195 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2919 | #endif |
3196 | #endif |
2920 | #if EV_USE_PORT |
3197 | #if EV_USE_PORT |
2921 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3198 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2922 | #endif |
3199 | #endif |
2923 | #if EV_USE_KQUEUE |
3200 | #if EV_USE_KQUEUE |
2924 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3201 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3202 | #endif |
|
|
3203 | #if EV_USE_IOURING |
|
|
3204 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3205 | #endif |
|
|
3206 | #if EV_USE_LINUXAIO |
|
|
3207 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2925 | #endif |
3208 | #endif |
2926 | #if EV_USE_EPOLL |
3209 | #if EV_USE_EPOLL |
2927 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3210 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2928 | #endif |
3211 | #endif |
2929 | #if EV_USE_POLL |
3212 | #if EV_USE_POLL |
2930 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3213 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2931 | #endif |
3214 | #endif |
2932 | #if EV_USE_SELECT |
3215 | #if EV_USE_SELECT |
2933 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3216 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2934 | #endif |
3217 | #endif |
2935 | |
3218 | |
2936 | ev_prepare_init (&pending_w, pendingcb); |
3219 | ev_prepare_init (&pending_w, pendingcb); |
2937 | |
3220 | |
2938 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3221 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2955 | return; |
3238 | return; |
2956 | #endif |
3239 | #endif |
2957 | |
3240 | |
2958 | #if EV_CLEANUP_ENABLE |
3241 | #if EV_CLEANUP_ENABLE |
2959 | /* queue cleanup watchers (and execute them) */ |
3242 | /* queue cleanup watchers (and execute them) */ |
2960 | if (expect_false (cleanupcnt)) |
3243 | if (ecb_expect_false (cleanupcnt)) |
2961 | { |
3244 | { |
2962 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3245 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2963 | EV_INVOKE_PENDING; |
3246 | EV_INVOKE_PENDING; |
2964 | } |
3247 | } |
2965 | #endif |
3248 | #endif |
… | |
… | |
2984 | #if EV_USE_SIGNALFD |
3267 | #if EV_USE_SIGNALFD |
2985 | if (ev_is_active (&sigfd_w)) |
3268 | if (ev_is_active (&sigfd_w)) |
2986 | close (sigfd); |
3269 | close (sigfd); |
2987 | #endif |
3270 | #endif |
2988 | |
3271 | |
|
|
3272 | #if EV_USE_TIMERFD |
|
|
3273 | if (ev_is_active (&timerfd_w)) |
|
|
3274 | close (timerfd); |
|
|
3275 | #endif |
|
|
3276 | |
2989 | #if EV_USE_INOTIFY |
3277 | #if EV_USE_INOTIFY |
2990 | if (fs_fd >= 0) |
3278 | if (fs_fd >= 0) |
2991 | close (fs_fd); |
3279 | close (fs_fd); |
2992 | #endif |
3280 | #endif |
2993 | |
3281 | |
2994 | if (backend_fd >= 0) |
3282 | if (backend_fd >= 0) |
2995 | close (backend_fd); |
3283 | close (backend_fd); |
2996 | |
3284 | |
2997 | #if EV_USE_IOCP |
3285 | #if EV_USE_IOCP |
2998 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3286 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2999 | #endif |
3287 | #endif |
3000 | #if EV_USE_PORT |
3288 | #if EV_USE_PORT |
3001 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3289 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3002 | #endif |
3290 | #endif |
3003 | #if EV_USE_KQUEUE |
3291 | #if EV_USE_KQUEUE |
3004 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3292 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3293 | #endif |
|
|
3294 | #if EV_USE_IOURING |
|
|
3295 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3296 | #endif |
|
|
3297 | #if EV_USE_LINUXAIO |
|
|
3298 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
3005 | #endif |
3299 | #endif |
3006 | #if EV_USE_EPOLL |
3300 | #if EV_USE_EPOLL |
3007 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3301 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3008 | #endif |
3302 | #endif |
3009 | #if EV_USE_POLL |
3303 | #if EV_USE_POLL |
3010 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3304 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3011 | #endif |
3305 | #endif |
3012 | #if EV_USE_SELECT |
3306 | #if EV_USE_SELECT |
3013 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3307 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
3014 | #endif |
3308 | #endif |
3015 | |
3309 | |
3016 | for (i = NUMPRI; i--; ) |
3310 | for (i = NUMPRI; i--; ) |
3017 | { |
3311 | { |
3018 | array_free (pending, [i]); |
3312 | array_free (pending, [i]); |
… | |
… | |
3060 | |
3354 | |
3061 | inline_size void |
3355 | inline_size void |
3062 | loop_fork (EV_P) |
3356 | loop_fork (EV_P) |
3063 | { |
3357 | { |
3064 | #if EV_USE_PORT |
3358 | #if EV_USE_PORT |
3065 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3359 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3066 | #endif |
3360 | #endif |
3067 | #if EV_USE_KQUEUE |
3361 | #if EV_USE_KQUEUE |
3068 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3362 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3363 | #endif |
|
|
3364 | #if EV_USE_IOURING |
|
|
3365 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3366 | #endif |
|
|
3367 | #if EV_USE_LINUXAIO |
|
|
3368 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
3069 | #endif |
3369 | #endif |
3070 | #if EV_USE_EPOLL |
3370 | #if EV_USE_EPOLL |
3071 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3371 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3072 | #endif |
3372 | #endif |
3073 | #if EV_USE_INOTIFY |
3373 | #if EV_USE_INOTIFY |
3074 | infy_fork (EV_A); |
3374 | infy_fork (EV_A); |
3075 | #endif |
3375 | #endif |
3076 | |
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 | |
3077 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3398 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3078 | if (ev_is_active (&pipe_w) && postfork != 2) |
3399 | if (ev_is_active (&pipe_w)) |
3079 | { |
3400 | { |
3080 | /* 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 */ |
3081 | |
3402 | |
3082 | ev_ref (EV_A); |
3403 | ev_ref (EV_A); |
3083 | ev_io_stop (EV_A_ &pipe_w); |
3404 | ev_io_stop (EV_A_ &pipe_w); |
3084 | |
3405 | |
3085 | if (evpipe [0] >= 0) |
3406 | if (evpipe [0] >= 0) |
3086 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3407 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3087 | |
3408 | |
3088 | evpipe_init (EV_A); |
3409 | evpipe_init (EV_A); |
3089 | /* iterate over everything, in case we missed something before */ |
3410 | /* iterate over everything, in case we missed something before */ |
3090 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3411 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3412 | } |
|
|
3413 | #endif |
3091 | } |
3414 | } |
3092 | #endif |
|
|
3093 | |
3415 | |
3094 | postfork = 0; |
3416 | postfork = 0; |
3095 | } |
3417 | } |
3096 | |
3418 | |
3097 | #if EV_MULTIPLICITY |
3419 | #if EV_MULTIPLICITY |
… | |
… | |
3113 | } |
3435 | } |
3114 | |
3436 | |
3115 | #endif /* multiplicity */ |
3437 | #endif /* multiplicity */ |
3116 | |
3438 | |
3117 | #if EV_VERIFY |
3439 | #if EV_VERIFY |
3118 | noinline ecb_cold |
3440 | ecb_noinline ecb_cold |
3119 | static void |
3441 | static void |
3120 | verify_watcher (EV_P_ W w) |
3442 | verify_watcher (EV_P_ W w) |
3121 | { |
3443 | { |
3122 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3444 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3123 | |
3445 | |
3124 | if (w->pending) |
3446 | if (w->pending) |
3125 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3447 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3126 | } |
3448 | } |
3127 | |
3449 | |
3128 | noinline ecb_cold |
3450 | ecb_noinline ecb_cold |
3129 | static void |
3451 | static void |
3130 | verify_heap (EV_P_ ANHE *heap, int N) |
3452 | verify_heap (EV_P_ ANHE *heap, int N) |
3131 | { |
3453 | { |
3132 | int i; |
3454 | int i; |
3133 | |
3455 | |
… | |
… | |
3139 | |
3461 | |
3140 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3462 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3141 | } |
3463 | } |
3142 | } |
3464 | } |
3143 | |
3465 | |
3144 | noinline ecb_cold |
3466 | ecb_noinline ecb_cold |
3145 | static void |
3467 | static void |
3146 | array_verify (EV_P_ W *ws, int cnt) |
3468 | array_verify (EV_P_ W *ws, int cnt) |
3147 | { |
3469 | { |
3148 | while (cnt--) |
3470 | while (cnt--) |
3149 | { |
3471 | { |
… | |
… | |
3298 | count += pendingcnt [pri]; |
3620 | count += pendingcnt [pri]; |
3299 | |
3621 | |
3300 | return count; |
3622 | return count; |
3301 | } |
3623 | } |
3302 | |
3624 | |
3303 | noinline |
3625 | ecb_noinline |
3304 | void |
3626 | void |
3305 | ev_invoke_pending (EV_P) |
3627 | ev_invoke_pending (EV_P) |
3306 | { |
3628 | { |
3307 | pendingpri = NUMPRI; |
3629 | pendingpri = NUMPRI; |
3308 | |
3630 | |
… | |
… | |
3327 | /* make idle watchers pending. this handles the "call-idle */ |
3649 | /* make idle watchers pending. this handles the "call-idle */ |
3328 | /* only when higher priorities are idle" logic */ |
3650 | /* only when higher priorities are idle" logic */ |
3329 | inline_size void |
3651 | inline_size void |
3330 | idle_reify (EV_P) |
3652 | idle_reify (EV_P) |
3331 | { |
3653 | { |
3332 | if (expect_false (idleall)) |
3654 | if (ecb_expect_false (idleall)) |
3333 | { |
3655 | { |
3334 | int pri; |
3656 | int pri; |
3335 | |
3657 | |
3336 | for (pri = NUMPRI; pri--; ) |
3658 | for (pri = NUMPRI; pri--; ) |
3337 | { |
3659 | { |
… | |
… | |
3367 | { |
3689 | { |
3368 | ev_at (w) += w->repeat; |
3690 | ev_at (w) += w->repeat; |
3369 | if (ev_at (w) < mn_now) |
3691 | if (ev_at (w) < mn_now) |
3370 | ev_at (w) = mn_now; |
3692 | ev_at (w) = mn_now; |
3371 | |
3693 | |
3372 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3694 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
3373 | |
3695 | |
3374 | ANHE_at_cache (timers [HEAP0]); |
3696 | ANHE_at_cache (timers [HEAP0]); |
3375 | downheap (timers, timercnt, HEAP0); |
3697 | downheap (timers, timercnt, HEAP0); |
3376 | } |
3698 | } |
3377 | else |
3699 | else |
… | |
… | |
3386 | } |
3708 | } |
3387 | } |
3709 | } |
3388 | |
3710 | |
3389 | #if EV_PERIODIC_ENABLE |
3711 | #if EV_PERIODIC_ENABLE |
3390 | |
3712 | |
3391 | noinline |
3713 | ecb_noinline |
3392 | static void |
3714 | static void |
3393 | periodic_recalc (EV_P_ ev_periodic *w) |
3715 | periodic_recalc (EV_P_ ev_periodic *w) |
3394 | { |
3716 | { |
3395 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3717 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3396 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3718 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
… | |
… | |
3399 | while (at <= ev_rt_now) |
3721 | while (at <= ev_rt_now) |
3400 | { |
3722 | { |
3401 | ev_tstamp nat = at + w->interval; |
3723 | ev_tstamp nat = at + w->interval; |
3402 | |
3724 | |
3403 | /* when resolution fails us, we use ev_rt_now */ |
3725 | /* when resolution fails us, we use ev_rt_now */ |
3404 | if (expect_false (nat == at)) |
3726 | if (ecb_expect_false (nat == at)) |
3405 | { |
3727 | { |
3406 | at = ev_rt_now; |
3728 | at = ev_rt_now; |
3407 | break; |
3729 | break; |
3408 | } |
3730 | } |
3409 | |
3731 | |
… | |
… | |
3455 | } |
3777 | } |
3456 | } |
3778 | } |
3457 | |
3779 | |
3458 | /* simply recalculate all periodics */ |
3780 | /* simply recalculate all periodics */ |
3459 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3781 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3460 | noinline ecb_cold |
3782 | ecb_noinline ecb_cold |
3461 | static void |
3783 | static void |
3462 | periodics_reschedule (EV_P) |
3784 | periodics_reschedule (EV_P) |
3463 | { |
3785 | { |
3464 | int i; |
3786 | int i; |
3465 | |
3787 | |
… | |
… | |
3479 | reheap (periodics, periodiccnt); |
3801 | reheap (periodics, periodiccnt); |
3480 | } |
3802 | } |
3481 | #endif |
3803 | #endif |
3482 | |
3804 | |
3483 | /* adjust all timers by a given offset */ |
3805 | /* adjust all timers by a given offset */ |
3484 | noinline ecb_cold |
3806 | ecb_noinline ecb_cold |
3485 | static void |
3807 | static void |
3486 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3808 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3487 | { |
3809 | { |
3488 | int i; |
3810 | int i; |
3489 | |
3811 | |
… | |
… | |
3499 | /* also detect if there was a timejump, and act accordingly */ |
3821 | /* also detect if there was a timejump, and act accordingly */ |
3500 | inline_speed void |
3822 | inline_speed void |
3501 | time_update (EV_P_ ev_tstamp max_block) |
3823 | time_update (EV_P_ ev_tstamp max_block) |
3502 | { |
3824 | { |
3503 | #if EV_USE_MONOTONIC |
3825 | #if EV_USE_MONOTONIC |
3504 | if (expect_true (have_monotonic)) |
3826 | if (ecb_expect_true (have_monotonic)) |
3505 | { |
3827 | { |
3506 | int i; |
3828 | int i; |
3507 | ev_tstamp odiff = rtmn_diff; |
3829 | ev_tstamp odiff = rtmn_diff; |
3508 | |
3830 | |
3509 | mn_now = get_clock (); |
3831 | mn_now = get_clock (); |
3510 | |
3832 | |
3511 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3833 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3512 | /* interpolate in the meantime */ |
3834 | /* interpolate in the meantime */ |
3513 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3835 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
3514 | { |
3836 | { |
3515 | ev_rt_now = rtmn_diff + mn_now; |
3837 | ev_rt_now = rtmn_diff + mn_now; |
3516 | return; |
3838 | return; |
3517 | } |
3839 | } |
3518 | |
3840 | |
… | |
… | |
3532 | ev_tstamp diff; |
3854 | ev_tstamp diff; |
3533 | rtmn_diff = ev_rt_now - mn_now; |
3855 | rtmn_diff = ev_rt_now - mn_now; |
3534 | |
3856 | |
3535 | diff = odiff - rtmn_diff; |
3857 | diff = odiff - rtmn_diff; |
3536 | |
3858 | |
3537 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3859 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
3538 | return; /* all is well */ |
3860 | return; /* all is well */ |
3539 | |
3861 | |
3540 | ev_rt_now = ev_time (); |
3862 | ev_rt_now = ev_time (); |
3541 | mn_now = get_clock (); |
3863 | mn_now = get_clock (); |
3542 | now_floor = mn_now; |
3864 | now_floor = mn_now; |
… | |
… | |
3551 | else |
3873 | else |
3552 | #endif |
3874 | #endif |
3553 | { |
3875 | { |
3554 | ev_rt_now = ev_time (); |
3876 | ev_rt_now = ev_time (); |
3555 | |
3877 | |
3556 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3878 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
3557 | { |
3879 | { |
3558 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3880 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3559 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3881 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3560 | #if EV_PERIODIC_ENABLE |
3882 | #if EV_PERIODIC_ENABLE |
3561 | periodics_reschedule (EV_A); |
3883 | periodics_reschedule (EV_A); |
… | |
… | |
3584 | #if EV_VERIFY >= 2 |
3906 | #if EV_VERIFY >= 2 |
3585 | ev_verify (EV_A); |
3907 | ev_verify (EV_A); |
3586 | #endif |
3908 | #endif |
3587 | |
3909 | |
3588 | #ifndef _WIN32 |
3910 | #ifndef _WIN32 |
3589 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3911 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3590 | if (expect_false (getpid () != curpid)) |
3912 | if (ecb_expect_false (getpid () != curpid)) |
3591 | { |
3913 | { |
3592 | curpid = getpid (); |
3914 | curpid = getpid (); |
3593 | postfork = 1; |
3915 | postfork = 1; |
3594 | } |
3916 | } |
3595 | #endif |
3917 | #endif |
3596 | |
3918 | |
3597 | #if EV_FORK_ENABLE |
3919 | #if EV_FORK_ENABLE |
3598 | /* we might have forked, so queue fork handlers */ |
3920 | /* we might have forked, so queue fork handlers */ |
3599 | if (expect_false (postfork)) |
3921 | if (ecb_expect_false (postfork)) |
3600 | if (forkcnt) |
3922 | if (forkcnt) |
3601 | { |
3923 | { |
3602 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3924 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3603 | EV_INVOKE_PENDING; |
3925 | EV_INVOKE_PENDING; |
3604 | } |
3926 | } |
3605 | #endif |
3927 | #endif |
3606 | |
3928 | |
3607 | #if EV_PREPARE_ENABLE |
3929 | #if EV_PREPARE_ENABLE |
3608 | /* queue prepare watchers (and execute them) */ |
3930 | /* queue prepare watchers (and execute them) */ |
3609 | if (expect_false (preparecnt)) |
3931 | if (ecb_expect_false (preparecnt)) |
3610 | { |
3932 | { |
3611 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3933 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3612 | EV_INVOKE_PENDING; |
3934 | EV_INVOKE_PENDING; |
3613 | } |
3935 | } |
3614 | #endif |
3936 | #endif |
3615 | |
3937 | |
3616 | if (expect_false (loop_done)) |
3938 | if (ecb_expect_false (loop_done)) |
3617 | break; |
3939 | break; |
3618 | |
3940 | |
3619 | /* we might have forked, so reify kernel state if necessary */ |
3941 | /* we might have forked, so reify kernel state if necessary */ |
3620 | if (expect_false (postfork)) |
3942 | if (ecb_expect_false (postfork)) |
3621 | loop_fork (EV_A); |
3943 | loop_fork (EV_A); |
3622 | |
3944 | |
3623 | /* update fd-related kernel structures */ |
3945 | /* update fd-related kernel structures */ |
3624 | fd_reify (EV_A); |
3946 | fd_reify (EV_A); |
3625 | |
3947 | |
… | |
… | |
3630 | |
3952 | |
3631 | /* remember old timestamp for io_blocktime calculation */ |
3953 | /* remember old timestamp for io_blocktime calculation */ |
3632 | ev_tstamp prev_mn_now = mn_now; |
3954 | ev_tstamp prev_mn_now = mn_now; |
3633 | |
3955 | |
3634 | /* update time to cancel out callback processing overhead */ |
3956 | /* update time to cancel out callback processing overhead */ |
3635 | time_update (EV_A_ 1e100); |
3957 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3636 | |
3958 | |
3637 | /* from now on, we want a pipe-wake-up */ |
3959 | /* from now on, we want a pipe-wake-up */ |
3638 | pipe_write_wanted = 1; |
3960 | pipe_write_wanted = 1; |
3639 | |
3961 | |
3640 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3962 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3641 | |
3963 | |
3642 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3964 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3643 | { |
3965 | { |
3644 | waittime = MAX_BLOCKTIME; |
3966 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
3645 | |
3967 | |
3646 | if (timercnt) |
3968 | if (timercnt) |
3647 | { |
3969 | { |
3648 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3970 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3649 | if (waittime > to) waittime = to; |
3971 | if (waittime > to) waittime = to; |
… | |
… | |
3656 | if (waittime > to) waittime = to; |
3978 | if (waittime > to) waittime = to; |
3657 | } |
3979 | } |
3658 | #endif |
3980 | #endif |
3659 | |
3981 | |
3660 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3982 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3661 | if (expect_false (waittime < timeout_blocktime)) |
3983 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3662 | waittime = timeout_blocktime; |
3984 | waittime = timeout_blocktime; |
3663 | |
3985 | |
3664 | /* at this point, we NEED to wait, so we have to ensure */ |
3986 | /* now there are two more special cases left, either we have |
3665 | /* 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 | */ |
3666 | if (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.) |
3667 | waittime = backend_mintime; |
3994 | : backend_mintime; |
3668 | |
3995 | |
3669 | /* extra check because io_blocktime is commonly 0 */ |
3996 | /* extra check because io_blocktime is commonly 0 */ |
3670 | if (expect_false (io_blocktime)) |
3997 | if (ecb_expect_false (io_blocktime)) |
3671 | { |
3998 | { |
3672 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3999 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3673 | |
4000 | |
3674 | if (sleeptime > waittime - backend_mintime) |
4001 | if (sleeptime > waittime - backend_mintime) |
3675 | sleeptime = waittime - backend_mintime; |
4002 | sleeptime = waittime - backend_mintime; |
3676 | |
4003 | |
3677 | if (expect_true (sleeptime > 0.)) |
4004 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3678 | { |
4005 | { |
3679 | ev_sleep (sleeptime); |
4006 | ev_sleep (sleeptime); |
3680 | waittime -= sleeptime; |
4007 | waittime -= sleeptime; |
3681 | } |
4008 | } |
3682 | } |
4009 | } |
… | |
… | |
3696 | { |
4023 | { |
3697 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
4024 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3698 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
4025 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3699 | } |
4026 | } |
3700 | |
4027 | |
3701 | |
|
|
3702 | /* update ev_rt_now, do magic */ |
4028 | /* update ev_rt_now, do magic */ |
3703 | time_update (EV_A_ waittime + sleeptime); |
4029 | time_update (EV_A_ waittime + sleeptime); |
3704 | } |
4030 | } |
3705 | |
4031 | |
3706 | /* queue pending timers and reschedule them */ |
4032 | /* queue pending timers and reschedule them */ |
… | |
… | |
3714 | idle_reify (EV_A); |
4040 | idle_reify (EV_A); |
3715 | #endif |
4041 | #endif |
3716 | |
4042 | |
3717 | #if EV_CHECK_ENABLE |
4043 | #if EV_CHECK_ENABLE |
3718 | /* queue check watchers, to be executed first */ |
4044 | /* queue check watchers, to be executed first */ |
3719 | if (expect_false (checkcnt)) |
4045 | if (ecb_expect_false (checkcnt)) |
3720 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4046 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3721 | #endif |
4047 | #endif |
3722 | |
4048 | |
3723 | EV_INVOKE_PENDING; |
4049 | EV_INVOKE_PENDING; |
3724 | } |
4050 | } |
3725 | while (expect_true ( |
4051 | while (ecb_expect_true ( |
3726 | activecnt |
4052 | activecnt |
3727 | && !loop_done |
4053 | && !loop_done |
3728 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4054 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3729 | )); |
4055 | )); |
3730 | |
4056 | |
… | |
… | |
3757 | } |
4083 | } |
3758 | |
4084 | |
3759 | void |
4085 | void |
3760 | ev_now_update (EV_P) EV_NOEXCEPT |
4086 | ev_now_update (EV_P) EV_NOEXCEPT |
3761 | { |
4087 | { |
3762 | time_update (EV_A_ 1e100); |
4088 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3763 | } |
4089 | } |
3764 | |
4090 | |
3765 | void |
4091 | void |
3766 | ev_suspend (EV_P) EV_NOEXCEPT |
4092 | ev_suspend (EV_P) EV_NOEXCEPT |
3767 | { |
4093 | { |
… | |
… | |
3794 | inline_size void |
4120 | inline_size void |
3795 | wlist_del (WL *head, WL elem) |
4121 | wlist_del (WL *head, WL elem) |
3796 | { |
4122 | { |
3797 | while (*head) |
4123 | while (*head) |
3798 | { |
4124 | { |
3799 | if (expect_true (*head == elem)) |
4125 | if (ecb_expect_true (*head == elem)) |
3800 | { |
4126 | { |
3801 | *head = elem->next; |
4127 | *head = elem->next; |
3802 | break; |
4128 | break; |
3803 | } |
4129 | } |
3804 | |
4130 | |
… | |
… | |
3821 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
4147 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3822 | { |
4148 | { |
3823 | W w_ = (W)w; |
4149 | W w_ = (W)w; |
3824 | int pending = w_->pending; |
4150 | int pending = w_->pending; |
3825 | |
4151 | |
3826 | if (expect_true (pending)) |
4152 | if (ecb_expect_true (pending)) |
3827 | { |
4153 | { |
3828 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4154 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3829 | p->w = (W)&pending_w; |
4155 | p->w = (W)&pending_w; |
3830 | w_->pending = 0; |
4156 | w_->pending = 0; |
3831 | return p->events; |
4157 | return p->events; |
… | |
… | |
3858 | w->active = 0; |
4184 | w->active = 0; |
3859 | } |
4185 | } |
3860 | |
4186 | |
3861 | /*****************************************************************************/ |
4187 | /*****************************************************************************/ |
3862 | |
4188 | |
3863 | noinline |
4189 | ecb_noinline |
3864 | void |
4190 | void |
3865 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
4191 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3866 | { |
4192 | { |
3867 | int fd = w->fd; |
4193 | int fd = w->fd; |
3868 | |
4194 | |
3869 | if (expect_false (ev_is_active (w))) |
4195 | if (ecb_expect_false (ev_is_active (w))) |
3870 | return; |
4196 | return; |
3871 | |
4197 | |
3872 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4198 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3873 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4199 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3874 | |
4200 | |
|
|
4201 | #if EV_VERIFY >= 2 |
|
|
4202 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4203 | #endif |
3875 | EV_FREQUENT_CHECK; |
4204 | EV_FREQUENT_CHECK; |
3876 | |
4205 | |
3877 | ev_start (EV_A_ (W)w, 1); |
4206 | ev_start (EV_A_ (W)w, 1); |
3878 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4207 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3879 | wlist_add (&anfds[fd].head, (WL)w); |
4208 | wlist_add (&anfds[fd].head, (WL)w); |
3880 | |
4209 | |
3881 | /* common bug, apparently */ |
4210 | /* common bug, apparently */ |
3882 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
4211 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3883 | |
4212 | |
… | |
… | |
3885 | w->events &= ~EV__IOFDSET; |
4214 | w->events &= ~EV__IOFDSET; |
3886 | |
4215 | |
3887 | EV_FREQUENT_CHECK; |
4216 | EV_FREQUENT_CHECK; |
3888 | } |
4217 | } |
3889 | |
4218 | |
3890 | noinline |
4219 | ecb_noinline |
3891 | void |
4220 | void |
3892 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
4221 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3893 | { |
4222 | { |
3894 | clear_pending (EV_A_ (W)w); |
4223 | clear_pending (EV_A_ (W)w); |
3895 | if (expect_false (!ev_is_active (w))) |
4224 | if (ecb_expect_false (!ev_is_active (w))) |
3896 | return; |
4225 | return; |
3897 | |
4226 | |
3898 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4227 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3899 | |
4228 | |
|
|
4229 | #if EV_VERIFY >= 2 |
|
|
4230 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4231 | #endif |
3900 | EV_FREQUENT_CHECK; |
4232 | EV_FREQUENT_CHECK; |
3901 | |
4233 | |
3902 | wlist_del (&anfds[w->fd].head, (WL)w); |
4234 | wlist_del (&anfds[w->fd].head, (WL)w); |
3903 | ev_stop (EV_A_ (W)w); |
4235 | ev_stop (EV_A_ (W)w); |
3904 | |
4236 | |
3905 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4237 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3906 | |
4238 | |
3907 | EV_FREQUENT_CHECK; |
4239 | EV_FREQUENT_CHECK; |
3908 | } |
4240 | } |
3909 | |
4241 | |
3910 | noinline |
4242 | ecb_noinline |
3911 | void |
4243 | void |
3912 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
4244 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3913 | { |
4245 | { |
3914 | if (expect_false (ev_is_active (w))) |
4246 | if (ecb_expect_false (ev_is_active (w))) |
3915 | return; |
4247 | return; |
3916 | |
4248 | |
3917 | ev_at (w) += mn_now; |
4249 | ev_at (w) += mn_now; |
3918 | |
4250 | |
3919 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4251 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3920 | |
4252 | |
3921 | EV_FREQUENT_CHECK; |
4253 | EV_FREQUENT_CHECK; |
3922 | |
4254 | |
3923 | ++timercnt; |
4255 | ++timercnt; |
3924 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4256 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3925 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4257 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3926 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4258 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3927 | ANHE_at_cache (timers [ev_active (w)]); |
4259 | ANHE_at_cache (timers [ev_active (w)]); |
3928 | upheap (timers, ev_active (w)); |
4260 | upheap (timers, ev_active (w)); |
3929 | |
4261 | |
3930 | EV_FREQUENT_CHECK; |
4262 | EV_FREQUENT_CHECK; |
3931 | |
4263 | |
3932 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4264 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3933 | } |
4265 | } |
3934 | |
4266 | |
3935 | noinline |
4267 | ecb_noinline |
3936 | void |
4268 | void |
3937 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
4269 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3938 | { |
4270 | { |
3939 | clear_pending (EV_A_ (W)w); |
4271 | clear_pending (EV_A_ (W)w); |
3940 | if (expect_false (!ev_is_active (w))) |
4272 | if (ecb_expect_false (!ev_is_active (w))) |
3941 | return; |
4273 | return; |
3942 | |
4274 | |
3943 | EV_FREQUENT_CHECK; |
4275 | EV_FREQUENT_CHECK; |
3944 | |
4276 | |
3945 | { |
4277 | { |
… | |
… | |
3947 | |
4279 | |
3948 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4280 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3949 | |
4281 | |
3950 | --timercnt; |
4282 | --timercnt; |
3951 | |
4283 | |
3952 | if (expect_true (active < timercnt + HEAP0)) |
4284 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3953 | { |
4285 | { |
3954 | timers [active] = timers [timercnt + HEAP0]; |
4286 | timers [active] = timers [timercnt + HEAP0]; |
3955 | adjustheap (timers, timercnt, active); |
4287 | adjustheap (timers, timercnt, active); |
3956 | } |
4288 | } |
3957 | } |
4289 | } |
… | |
… | |
3961 | ev_stop (EV_A_ (W)w); |
4293 | ev_stop (EV_A_ (W)w); |
3962 | |
4294 | |
3963 | EV_FREQUENT_CHECK; |
4295 | EV_FREQUENT_CHECK; |
3964 | } |
4296 | } |
3965 | |
4297 | |
3966 | noinline |
4298 | ecb_noinline |
3967 | void |
4299 | void |
3968 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
4300 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3969 | { |
4301 | { |
3970 | EV_FREQUENT_CHECK; |
4302 | EV_FREQUENT_CHECK; |
3971 | |
4303 | |
… | |
… | |
3992 | } |
4324 | } |
3993 | |
4325 | |
3994 | ev_tstamp |
4326 | ev_tstamp |
3995 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
4327 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3996 | { |
4328 | { |
3997 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4329 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
3998 | } |
4330 | } |
3999 | |
4331 | |
4000 | #if EV_PERIODIC_ENABLE |
4332 | #if EV_PERIODIC_ENABLE |
4001 | noinline |
4333 | ecb_noinline |
4002 | void |
4334 | void |
4003 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4335 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4004 | { |
4336 | { |
4005 | if (expect_false (ev_is_active (w))) |
4337 | if (ecb_expect_false (ev_is_active (w))) |
4006 | return; |
4338 | return; |
|
|
4339 | |
|
|
4340 | #if EV_USE_TIMERFD |
|
|
4341 | if (timerfd == -2) |
|
|
4342 | evtimerfd_init (EV_A); |
|
|
4343 | #endif |
4007 | |
4344 | |
4008 | if (w->reschedule_cb) |
4345 | if (w->reschedule_cb) |
4009 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4346 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4010 | else if (w->interval) |
4347 | else if (w->interval) |
4011 | { |
4348 | { |
… | |
… | |
4017 | |
4354 | |
4018 | EV_FREQUENT_CHECK; |
4355 | EV_FREQUENT_CHECK; |
4019 | |
4356 | |
4020 | ++periodiccnt; |
4357 | ++periodiccnt; |
4021 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4358 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4022 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4359 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
4023 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4360 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4024 | ANHE_at_cache (periodics [ev_active (w)]); |
4361 | ANHE_at_cache (periodics [ev_active (w)]); |
4025 | upheap (periodics, ev_active (w)); |
4362 | upheap (periodics, ev_active (w)); |
4026 | |
4363 | |
4027 | EV_FREQUENT_CHECK; |
4364 | EV_FREQUENT_CHECK; |
4028 | |
4365 | |
4029 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4366 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4030 | } |
4367 | } |
4031 | |
4368 | |
4032 | noinline |
4369 | ecb_noinline |
4033 | void |
4370 | void |
4034 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4371 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4035 | { |
4372 | { |
4036 | clear_pending (EV_A_ (W)w); |
4373 | clear_pending (EV_A_ (W)w); |
4037 | if (expect_false (!ev_is_active (w))) |
4374 | if (ecb_expect_false (!ev_is_active (w))) |
4038 | return; |
4375 | return; |
4039 | |
4376 | |
4040 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
4041 | |
4378 | |
4042 | { |
4379 | { |
… | |
… | |
4044 | |
4381 | |
4045 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4382 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4046 | |
4383 | |
4047 | --periodiccnt; |
4384 | --periodiccnt; |
4048 | |
4385 | |
4049 | if (expect_true (active < periodiccnt + HEAP0)) |
4386 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
4050 | { |
4387 | { |
4051 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4388 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4052 | adjustheap (periodics, periodiccnt, active); |
4389 | adjustheap (periodics, periodiccnt, active); |
4053 | } |
4390 | } |
4054 | } |
4391 | } |
… | |
… | |
4056 | ev_stop (EV_A_ (W)w); |
4393 | ev_stop (EV_A_ (W)w); |
4057 | |
4394 | |
4058 | EV_FREQUENT_CHECK; |
4395 | EV_FREQUENT_CHECK; |
4059 | } |
4396 | } |
4060 | |
4397 | |
4061 | noinline |
4398 | ecb_noinline |
4062 | void |
4399 | void |
4063 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4400 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4064 | { |
4401 | { |
4065 | /* TODO: use adjustheap and recalculation */ |
4402 | /* TODO: use adjustheap and recalculation */ |
4066 | ev_periodic_stop (EV_A_ w); |
4403 | ev_periodic_stop (EV_A_ w); |
… | |
… | |
4072 | # define SA_RESTART 0 |
4409 | # define SA_RESTART 0 |
4073 | #endif |
4410 | #endif |
4074 | |
4411 | |
4075 | #if EV_SIGNAL_ENABLE |
4412 | #if EV_SIGNAL_ENABLE |
4076 | |
4413 | |
4077 | noinline |
4414 | ecb_noinline |
4078 | void |
4415 | void |
4079 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
4416 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
4080 | { |
4417 | { |
4081 | if (expect_false (ev_is_active (w))) |
4418 | if (ecb_expect_false (ev_is_active (w))) |
4082 | return; |
4419 | return; |
4083 | |
4420 | |
4084 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4421 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4085 | |
4422 | |
4086 | #if EV_MULTIPLICITY |
4423 | #if EV_MULTIPLICITY |
… | |
… | |
4155 | } |
4492 | } |
4156 | |
4493 | |
4157 | EV_FREQUENT_CHECK; |
4494 | EV_FREQUENT_CHECK; |
4158 | } |
4495 | } |
4159 | |
4496 | |
4160 | noinline |
4497 | ecb_noinline |
4161 | void |
4498 | void |
4162 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
4499 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
4163 | { |
4500 | { |
4164 | clear_pending (EV_A_ (W)w); |
4501 | clear_pending (EV_A_ (W)w); |
4165 | if (expect_false (!ev_is_active (w))) |
4502 | if (ecb_expect_false (!ev_is_active (w))) |
4166 | return; |
4503 | return; |
4167 | |
4504 | |
4168 | EV_FREQUENT_CHECK; |
4505 | EV_FREQUENT_CHECK; |
4169 | |
4506 | |
4170 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4507 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
4203 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
4540 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
4204 | { |
4541 | { |
4205 | #if EV_MULTIPLICITY |
4542 | #if EV_MULTIPLICITY |
4206 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4543 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4207 | #endif |
4544 | #endif |
4208 | if (expect_false (ev_is_active (w))) |
4545 | if (ecb_expect_false (ev_is_active (w))) |
4209 | return; |
4546 | return; |
4210 | |
4547 | |
4211 | EV_FREQUENT_CHECK; |
4548 | EV_FREQUENT_CHECK; |
4212 | |
4549 | |
4213 | ev_start (EV_A_ (W)w, 1); |
4550 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
4218 | |
4555 | |
4219 | void |
4556 | void |
4220 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
4557 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
4221 | { |
4558 | { |
4222 | clear_pending (EV_A_ (W)w); |
4559 | clear_pending (EV_A_ (W)w); |
4223 | if (expect_false (!ev_is_active (w))) |
4560 | if (ecb_expect_false (!ev_is_active (w))) |
4224 | return; |
4561 | return; |
4225 | |
4562 | |
4226 | EV_FREQUENT_CHECK; |
4563 | EV_FREQUENT_CHECK; |
4227 | |
4564 | |
4228 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4565 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
4242 | |
4579 | |
4243 | #define DEF_STAT_INTERVAL 5.0074891 |
4580 | #define DEF_STAT_INTERVAL 5.0074891 |
4244 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4581 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4245 | #define MIN_STAT_INTERVAL 0.1074891 |
4582 | #define MIN_STAT_INTERVAL 0.1074891 |
4246 | |
4583 | |
4247 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4584 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4248 | |
4585 | |
4249 | #if EV_USE_INOTIFY |
4586 | #if EV_USE_INOTIFY |
4250 | |
4587 | |
4251 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4588 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4252 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4589 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4253 | |
4590 | |
4254 | noinline |
4591 | ecb_noinline |
4255 | static void |
4592 | static void |
4256 | infy_add (EV_P_ ev_stat *w) |
4593 | infy_add (EV_P_ ev_stat *w) |
4257 | { |
4594 | { |
4258 | w->wd = inotify_add_watch (fs_fd, w->path, |
4595 | w->wd = inotify_add_watch (fs_fd, w->path, |
4259 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4596 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
… | |
… | |
4324 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4661 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4325 | ev_timer_again (EV_A_ &w->timer); |
4662 | ev_timer_again (EV_A_ &w->timer); |
4326 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4663 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4327 | } |
4664 | } |
4328 | |
4665 | |
4329 | noinline |
4666 | ecb_noinline |
4330 | static void |
4667 | static void |
4331 | infy_del (EV_P_ ev_stat *w) |
4668 | infy_del (EV_P_ ev_stat *w) |
4332 | { |
4669 | { |
4333 | int slot; |
4670 | int slot; |
4334 | int wd = w->wd; |
4671 | int wd = w->wd; |
… | |
… | |
4342 | |
4679 | |
4343 | /* remove this watcher, if others are watching it, they will rearm */ |
4680 | /* remove this watcher, if others are watching it, they will rearm */ |
4344 | inotify_rm_watch (fs_fd, wd); |
4681 | inotify_rm_watch (fs_fd, wd); |
4345 | } |
4682 | } |
4346 | |
4683 | |
4347 | noinline |
4684 | ecb_noinline |
4348 | static void |
4685 | static void |
4349 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4686 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4350 | { |
4687 | { |
4351 | if (slot < 0) |
4688 | if (slot < 0) |
4352 | /* overflow, need to check for all hash slots */ |
4689 | /* overflow, need to check for all hash slots */ |
… | |
… | |
4498 | w->attr.st_nlink = 0; |
4835 | w->attr.st_nlink = 0; |
4499 | else if (!w->attr.st_nlink) |
4836 | else if (!w->attr.st_nlink) |
4500 | w->attr.st_nlink = 1; |
4837 | w->attr.st_nlink = 1; |
4501 | } |
4838 | } |
4502 | |
4839 | |
4503 | noinline |
4840 | ecb_noinline |
4504 | static void |
4841 | static void |
4505 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4842 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4506 | { |
4843 | { |
4507 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4844 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4508 | |
4845 | |
… | |
… | |
4542 | } |
4879 | } |
4543 | |
4880 | |
4544 | void |
4881 | void |
4545 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4882 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4546 | { |
4883 | { |
4547 | if (expect_false (ev_is_active (w))) |
4884 | if (ecb_expect_false (ev_is_active (w))) |
4548 | return; |
4885 | return; |
4549 | |
4886 | |
4550 | ev_stat_stat (EV_A_ w); |
4887 | ev_stat_stat (EV_A_ w); |
4551 | |
4888 | |
4552 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4889 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
4574 | |
4911 | |
4575 | void |
4912 | void |
4576 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4913 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4577 | { |
4914 | { |
4578 | clear_pending (EV_A_ (W)w); |
4915 | clear_pending (EV_A_ (W)w); |
4579 | if (expect_false (!ev_is_active (w))) |
4916 | if (ecb_expect_false (!ev_is_active (w))) |
4580 | return; |
4917 | return; |
4581 | |
4918 | |
4582 | EV_FREQUENT_CHECK; |
4919 | EV_FREQUENT_CHECK; |
4583 | |
4920 | |
4584 | #if EV_USE_INOTIFY |
4921 | #if EV_USE_INOTIFY |
… | |
… | |
4599 | |
4936 | |
4600 | #if EV_IDLE_ENABLE |
4937 | #if EV_IDLE_ENABLE |
4601 | void |
4938 | void |
4602 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4939 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4603 | { |
4940 | { |
4604 | if (expect_false (ev_is_active (w))) |
4941 | if (ecb_expect_false (ev_is_active (w))) |
4605 | return; |
4942 | return; |
4606 | |
4943 | |
4607 | pri_adjust (EV_A_ (W)w); |
4944 | pri_adjust (EV_A_ (W)w); |
4608 | |
4945 | |
4609 | EV_FREQUENT_CHECK; |
4946 | EV_FREQUENT_CHECK; |
… | |
… | |
4612 | int active = ++idlecnt [ABSPRI (w)]; |
4949 | int active = ++idlecnt [ABSPRI (w)]; |
4613 | |
4950 | |
4614 | ++idleall; |
4951 | ++idleall; |
4615 | ev_start (EV_A_ (W)w, active); |
4952 | ev_start (EV_A_ (W)w, active); |
4616 | |
4953 | |
4617 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4954 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4618 | idles [ABSPRI (w)][active - 1] = w; |
4955 | idles [ABSPRI (w)][active - 1] = w; |
4619 | } |
4956 | } |
4620 | |
4957 | |
4621 | EV_FREQUENT_CHECK; |
4958 | EV_FREQUENT_CHECK; |
4622 | } |
4959 | } |
4623 | |
4960 | |
4624 | void |
4961 | void |
4625 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4962 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4626 | { |
4963 | { |
4627 | clear_pending (EV_A_ (W)w); |
4964 | clear_pending (EV_A_ (W)w); |
4628 | if (expect_false (!ev_is_active (w))) |
4965 | if (ecb_expect_false (!ev_is_active (w))) |
4629 | return; |
4966 | return; |
4630 | |
4967 | |
4631 | EV_FREQUENT_CHECK; |
4968 | EV_FREQUENT_CHECK; |
4632 | |
4969 | |
4633 | { |
4970 | { |
… | |
… | |
4646 | |
4983 | |
4647 | #if EV_PREPARE_ENABLE |
4984 | #if EV_PREPARE_ENABLE |
4648 | void |
4985 | void |
4649 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4986 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4650 | { |
4987 | { |
4651 | if (expect_false (ev_is_active (w))) |
4988 | if (ecb_expect_false (ev_is_active (w))) |
4652 | return; |
4989 | return; |
4653 | |
4990 | |
4654 | EV_FREQUENT_CHECK; |
4991 | EV_FREQUENT_CHECK; |
4655 | |
4992 | |
4656 | ev_start (EV_A_ (W)w, ++preparecnt); |
4993 | ev_start (EV_A_ (W)w, ++preparecnt); |
4657 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4994 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4658 | prepares [preparecnt - 1] = w; |
4995 | prepares [preparecnt - 1] = w; |
4659 | |
4996 | |
4660 | EV_FREQUENT_CHECK; |
4997 | EV_FREQUENT_CHECK; |
4661 | } |
4998 | } |
4662 | |
4999 | |
4663 | void |
5000 | void |
4664 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
5001 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4665 | { |
5002 | { |
4666 | clear_pending (EV_A_ (W)w); |
5003 | clear_pending (EV_A_ (W)w); |
4667 | if (expect_false (!ev_is_active (w))) |
5004 | if (ecb_expect_false (!ev_is_active (w))) |
4668 | return; |
5005 | return; |
4669 | |
5006 | |
4670 | EV_FREQUENT_CHECK; |
5007 | EV_FREQUENT_CHECK; |
4671 | |
5008 | |
4672 | { |
5009 | { |
… | |
… | |
4684 | |
5021 | |
4685 | #if EV_CHECK_ENABLE |
5022 | #if EV_CHECK_ENABLE |
4686 | void |
5023 | void |
4687 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
5024 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4688 | { |
5025 | { |
4689 | if (expect_false (ev_is_active (w))) |
5026 | if (ecb_expect_false (ev_is_active (w))) |
4690 | return; |
5027 | return; |
4691 | |
5028 | |
4692 | EV_FREQUENT_CHECK; |
5029 | EV_FREQUENT_CHECK; |
4693 | |
5030 | |
4694 | ev_start (EV_A_ (W)w, ++checkcnt); |
5031 | ev_start (EV_A_ (W)w, ++checkcnt); |
4695 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5032 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4696 | checks [checkcnt - 1] = w; |
5033 | checks [checkcnt - 1] = w; |
4697 | |
5034 | |
4698 | EV_FREQUENT_CHECK; |
5035 | EV_FREQUENT_CHECK; |
4699 | } |
5036 | } |
4700 | |
5037 | |
4701 | void |
5038 | void |
4702 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
5039 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4703 | { |
5040 | { |
4704 | clear_pending (EV_A_ (W)w); |
5041 | clear_pending (EV_A_ (W)w); |
4705 | if (expect_false (!ev_is_active (w))) |
5042 | if (ecb_expect_false (!ev_is_active (w))) |
4706 | return; |
5043 | return; |
4707 | |
5044 | |
4708 | EV_FREQUENT_CHECK; |
5045 | EV_FREQUENT_CHECK; |
4709 | |
5046 | |
4710 | { |
5047 | { |
… | |
… | |
4719 | EV_FREQUENT_CHECK; |
5056 | EV_FREQUENT_CHECK; |
4720 | } |
5057 | } |
4721 | #endif |
5058 | #endif |
4722 | |
5059 | |
4723 | #if EV_EMBED_ENABLE |
5060 | #if EV_EMBED_ENABLE |
4724 | noinline |
5061 | ecb_noinline |
4725 | void |
5062 | void |
4726 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
5063 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4727 | { |
5064 | { |
4728 | ev_run (w->other, EVRUN_NOWAIT); |
5065 | ev_run (w->other, EVRUN_NOWAIT); |
4729 | } |
5066 | } |
… | |
… | |
4753 | ev_run (EV_A_ EVRUN_NOWAIT); |
5090 | ev_run (EV_A_ EVRUN_NOWAIT); |
4754 | } |
5091 | } |
4755 | } |
5092 | } |
4756 | } |
5093 | } |
4757 | |
5094 | |
|
|
5095 | #if EV_FORK_ENABLE |
4758 | static void |
5096 | static void |
4759 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5097 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
4760 | { |
5098 | { |
4761 | 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)); |
4762 | |
5100 | |
… | |
… | |
4769 | ev_run (EV_A_ EVRUN_NOWAIT); |
5107 | ev_run (EV_A_ EVRUN_NOWAIT); |
4770 | } |
5108 | } |
4771 | |
5109 | |
4772 | ev_embed_start (EV_A_ w); |
5110 | ev_embed_start (EV_A_ w); |
4773 | } |
5111 | } |
|
|
5112 | #endif |
4774 | |
5113 | |
4775 | #if 0 |
5114 | #if 0 |
4776 | static void |
5115 | static void |
4777 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5116 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4778 | { |
5117 | { |
… | |
… | |
4781 | #endif |
5120 | #endif |
4782 | |
5121 | |
4783 | void |
5122 | void |
4784 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
5123 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4785 | { |
5124 | { |
4786 | if (expect_false (ev_is_active (w))) |
5125 | if (ecb_expect_false (ev_is_active (w))) |
4787 | return; |
5126 | return; |
4788 | |
5127 | |
4789 | { |
5128 | { |
4790 | EV_P = w->other; |
5129 | EV_P = w->other; |
4791 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5130 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4799 | |
5138 | |
4800 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5139 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4801 | ev_set_priority (&w->prepare, EV_MINPRI); |
5140 | ev_set_priority (&w->prepare, EV_MINPRI); |
4802 | ev_prepare_start (EV_A_ &w->prepare); |
5141 | ev_prepare_start (EV_A_ &w->prepare); |
4803 | |
5142 | |
|
|
5143 | #if EV_FORK_ENABLE |
4804 | ev_fork_init (&w->fork, embed_fork_cb); |
5144 | ev_fork_init (&w->fork, embed_fork_cb); |
4805 | ev_fork_start (EV_A_ &w->fork); |
5145 | ev_fork_start (EV_A_ &w->fork); |
|
|
5146 | #endif |
4806 | |
5147 | |
4807 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5148 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4808 | |
5149 | |
4809 | ev_start (EV_A_ (W)w, 1); |
5150 | ev_start (EV_A_ (W)w, 1); |
4810 | |
5151 | |
… | |
… | |
4813 | |
5154 | |
4814 | void |
5155 | void |
4815 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
5156 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4816 | { |
5157 | { |
4817 | clear_pending (EV_A_ (W)w); |
5158 | clear_pending (EV_A_ (W)w); |
4818 | if (expect_false (!ev_is_active (w))) |
5159 | if (ecb_expect_false (!ev_is_active (w))) |
4819 | return; |
5160 | return; |
4820 | |
5161 | |
4821 | EV_FREQUENT_CHECK; |
5162 | EV_FREQUENT_CHECK; |
4822 | |
5163 | |
4823 | ev_io_stop (EV_A_ &w->io); |
5164 | ev_io_stop (EV_A_ &w->io); |
4824 | ev_prepare_stop (EV_A_ &w->prepare); |
5165 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5166 | #if EV_FORK_ENABLE |
4825 | ev_fork_stop (EV_A_ &w->fork); |
5167 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5168 | #endif |
4826 | |
5169 | |
4827 | ev_stop (EV_A_ (W)w); |
5170 | ev_stop (EV_A_ (W)w); |
4828 | |
5171 | |
4829 | EV_FREQUENT_CHECK; |
5172 | EV_FREQUENT_CHECK; |
4830 | } |
5173 | } |
… | |
… | |
4832 | |
5175 | |
4833 | #if EV_FORK_ENABLE |
5176 | #if EV_FORK_ENABLE |
4834 | void |
5177 | void |
4835 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
5178 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4836 | { |
5179 | { |
4837 | if (expect_false (ev_is_active (w))) |
5180 | if (ecb_expect_false (ev_is_active (w))) |
4838 | return; |
5181 | return; |
4839 | |
5182 | |
4840 | EV_FREQUENT_CHECK; |
5183 | EV_FREQUENT_CHECK; |
4841 | |
5184 | |
4842 | ev_start (EV_A_ (W)w, ++forkcnt); |
5185 | ev_start (EV_A_ (W)w, ++forkcnt); |
4843 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5186 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4844 | forks [forkcnt - 1] = w; |
5187 | forks [forkcnt - 1] = w; |
4845 | |
5188 | |
4846 | EV_FREQUENT_CHECK; |
5189 | EV_FREQUENT_CHECK; |
4847 | } |
5190 | } |
4848 | |
5191 | |
4849 | void |
5192 | void |
4850 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
5193 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4851 | { |
5194 | { |
4852 | clear_pending (EV_A_ (W)w); |
5195 | clear_pending (EV_A_ (W)w); |
4853 | if (expect_false (!ev_is_active (w))) |
5196 | if (ecb_expect_false (!ev_is_active (w))) |
4854 | return; |
5197 | return; |
4855 | |
5198 | |
4856 | EV_FREQUENT_CHECK; |
5199 | EV_FREQUENT_CHECK; |
4857 | |
5200 | |
4858 | { |
5201 | { |
… | |
… | |
4870 | |
5213 | |
4871 | #if EV_CLEANUP_ENABLE |
5214 | #if EV_CLEANUP_ENABLE |
4872 | void |
5215 | void |
4873 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
5216 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4874 | { |
5217 | { |
4875 | if (expect_false (ev_is_active (w))) |
5218 | if (ecb_expect_false (ev_is_active (w))) |
4876 | return; |
5219 | return; |
4877 | |
5220 | |
4878 | EV_FREQUENT_CHECK; |
5221 | EV_FREQUENT_CHECK; |
4879 | |
5222 | |
4880 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5223 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4881 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5224 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4882 | cleanups [cleanupcnt - 1] = w; |
5225 | cleanups [cleanupcnt - 1] = w; |
4883 | |
5226 | |
4884 | /* cleanup watchers should never keep a refcount on the loop */ |
5227 | /* cleanup watchers should never keep a refcount on the loop */ |
4885 | ev_unref (EV_A); |
5228 | ev_unref (EV_A); |
4886 | EV_FREQUENT_CHECK; |
5229 | EV_FREQUENT_CHECK; |
… | |
… | |
4888 | |
5231 | |
4889 | void |
5232 | void |
4890 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
5233 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4891 | { |
5234 | { |
4892 | clear_pending (EV_A_ (W)w); |
5235 | clear_pending (EV_A_ (W)w); |
4893 | if (expect_false (!ev_is_active (w))) |
5236 | if (ecb_expect_false (!ev_is_active (w))) |
4894 | return; |
5237 | return; |
4895 | |
5238 | |
4896 | EV_FREQUENT_CHECK; |
5239 | EV_FREQUENT_CHECK; |
4897 | ev_ref (EV_A); |
5240 | ev_ref (EV_A); |
4898 | |
5241 | |
… | |
… | |
4911 | |
5254 | |
4912 | #if EV_ASYNC_ENABLE |
5255 | #if EV_ASYNC_ENABLE |
4913 | void |
5256 | void |
4914 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
5257 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4915 | { |
5258 | { |
4916 | if (expect_false (ev_is_active (w))) |
5259 | if (ecb_expect_false (ev_is_active (w))) |
4917 | return; |
5260 | return; |
4918 | |
5261 | |
4919 | w->sent = 0; |
5262 | w->sent = 0; |
4920 | |
5263 | |
4921 | evpipe_init (EV_A); |
5264 | evpipe_init (EV_A); |
4922 | |
5265 | |
4923 | EV_FREQUENT_CHECK; |
5266 | EV_FREQUENT_CHECK; |
4924 | |
5267 | |
4925 | ev_start (EV_A_ (W)w, ++asynccnt); |
5268 | ev_start (EV_A_ (W)w, ++asynccnt); |
4926 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5269 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4927 | asyncs [asynccnt - 1] = w; |
5270 | asyncs [asynccnt - 1] = w; |
4928 | |
5271 | |
4929 | EV_FREQUENT_CHECK; |
5272 | EV_FREQUENT_CHECK; |
4930 | } |
5273 | } |
4931 | |
5274 | |
4932 | void |
5275 | void |
4933 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
5276 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4934 | { |
5277 | { |
4935 | clear_pending (EV_A_ (W)w); |
5278 | clear_pending (EV_A_ (W)w); |
4936 | if (expect_false (!ev_is_active (w))) |
5279 | if (ecb_expect_false (!ev_is_active (w))) |
4937 | return; |
5280 | return; |
4938 | |
5281 | |
4939 | EV_FREQUENT_CHECK; |
5282 | EV_FREQUENT_CHECK; |
4940 | |
5283 | |
4941 | { |
5284 | { |
… | |
… | |
4999 | |
5342 | |
5000 | void |
5343 | void |
5001 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
5344 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
5002 | { |
5345 | { |
5003 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5346 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5004 | |
|
|
5005 | if (expect_false (!once)) |
|
|
5006 | { |
|
|
5007 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
5008 | return; |
|
|
5009 | } |
|
|
5010 | |
5347 | |
5011 | once->cb = cb; |
5348 | once->cb = cb; |
5012 | once->arg = arg; |
5349 | once->arg = arg; |
5013 | |
5350 | |
5014 | ev_init (&once->io, once_cb_io); |
5351 | ev_init (&once->io, once_cb_io); |