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 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 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 | * |
… | |
… | |
34 | * by deleting the provisions above and replace them with the notice |
34 | * by deleting the provisions above and replace them with the notice |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
39 | |
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
… | |
… | |
182 | # include EV_H |
178 | # include EV_H |
183 | #else |
179 | #else |
184 | # include "ev.h" |
180 | # include "ev.h" |
185 | #endif |
181 | #endif |
186 | |
182 | |
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183 | EV_CPP(extern "C" {) |
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184 | |
187 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
188 | # include <sys/time.h> |
186 | # include <sys/time.h> |
189 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
190 | # include <unistd.h> |
188 | # include <unistd.h> |
191 | #else |
189 | #else |
… | |
… | |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
197 | # endif |
195 | # endif |
198 | # undef EV_AVOID_STDIO |
196 | # undef EV_AVOID_STDIO |
199 | #endif |
197 | #endif |
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198 | |
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199 | /* OS X, in its infinite idiocy, actually HARDCODES |
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200 | * a limit of 1024 into their select. Where people have brains, |
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201 | * OS X engineers apparently have a vacuum. Or maybe they were |
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202 | * ordered to have a vacuum, or they do anything for money. |
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203 | * This might help. Or not. |
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204 | */ |
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205 | #define _DARWIN_UNLIMITED_SELECT 1 |
200 | |
206 | |
201 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
202 | |
208 | |
203 | /* try to deduce the maximum number of signals on this platform */ |
209 | /* try to deduce the maximum number of signals on this platform */ |
204 | #if defined (EV_NSIG) |
210 | #if defined (EV_NSIG) |
… | |
… | |
370 | # undef EV_USE_INOTIFY |
376 | # undef EV_USE_INOTIFY |
371 | # define EV_USE_INOTIFY 0 |
377 | # define EV_USE_INOTIFY 0 |
372 | #endif |
378 | #endif |
373 | |
379 | |
374 | #if !EV_USE_NANOSLEEP |
380 | #if !EV_USE_NANOSLEEP |
375 | # ifndef _WIN32 |
381 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
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382 | # if !defined(_WIN32) && !defined(__hpux) |
376 | # include <sys/select.h> |
383 | # include <sys/select.h> |
377 | # endif |
384 | # endif |
378 | #endif |
385 | #endif |
379 | |
386 | |
380 | #if EV_USE_INOTIFY |
387 | #if EV_USE_INOTIFY |
381 | # include <sys/utsname.h> |
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382 | # include <sys/statfs.h> |
388 | # include <sys/statfs.h> |
383 | # include <sys/inotify.h> |
389 | # include <sys/inotify.h> |
384 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
385 | # ifndef IN_DONT_FOLLOW |
391 | # ifndef IN_DONT_FOLLOW |
386 | # undef EV_USE_INOTIFY |
392 | # undef EV_USE_INOTIFY |
… | |
… | |
403 | # define EFD_CLOEXEC O_CLOEXEC |
409 | # define EFD_CLOEXEC O_CLOEXEC |
404 | # else |
410 | # else |
405 | # define EFD_CLOEXEC 02000000 |
411 | # define EFD_CLOEXEC 02000000 |
406 | # endif |
412 | # endif |
407 | # endif |
413 | # endif |
408 | # ifdef __cplusplus |
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409 | extern "C" { |
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410 | # endif |
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411 | int (eventfd) (unsigned int initval, int flags); |
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
412 | # ifdef __cplusplus |
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413 | } |
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414 | # endif |
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415 | #endif |
415 | #endif |
416 | |
416 | |
417 | #if EV_USE_SIGNALFD |
417 | #if EV_USE_SIGNALFD |
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
419 | # include <stdint.h> |
419 | # include <stdint.h> |
… | |
… | |
425 | # define SFD_CLOEXEC O_CLOEXEC |
425 | # define SFD_CLOEXEC O_CLOEXEC |
426 | # else |
426 | # else |
427 | # define SFD_CLOEXEC 02000000 |
427 | # define SFD_CLOEXEC 02000000 |
428 | # endif |
428 | # endif |
429 | # endif |
429 | # endif |
430 | # ifdef __cplusplus |
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431 | extern "C" { |
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432 | # endif |
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433 | int signalfd (int fd, const sigset_t *mask, int flags); |
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
434 | |
431 | |
435 | struct signalfd_siginfo |
432 | struct signalfd_siginfo |
436 | { |
433 | { |
437 | uint32_t ssi_signo; |
434 | uint32_t ssi_signo; |
438 | char pad[128 - sizeof (uint32_t)]; |
435 | char pad[128 - sizeof (uint32_t)]; |
439 | }; |
436 | }; |
440 | # ifdef __cplusplus |
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441 | } |
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442 | # endif |
437 | #endif |
443 | #endif |
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444 | |
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445 | |
438 | |
446 | /**/ |
439 | /**/ |
447 | |
440 | |
448 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
449 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
… | |
… | |
462 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
463 | |
456 | |
464 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
465 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
466 | |
459 | |
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460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
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461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
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462 | |
467 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
468 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
469 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
470 | #else |
466 | #else |
471 | # define expect(expr,value) (expr) |
467 | # define expect(expr,value) (expr) |
… | |
… | |
503 | #define ev_active(w) ((W)(w))->active |
499 | #define ev_active(w) ((W)(w))->active |
504 | #define ev_at(w) ((WT)(w))->at |
500 | #define ev_at(w) ((WT)(w))->at |
505 | |
501 | |
506 | #if EV_USE_REALTIME |
502 | #if EV_USE_REALTIME |
507 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
508 | /* giving it a reasonably high chance of working on typical architetcures */ |
504 | /* giving it a reasonably high chance of working on typical architectures */ |
509 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
510 | #endif |
506 | #endif |
511 | |
507 | |
512 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
513 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
524 | #endif |
520 | #endif |
525 | |
521 | |
526 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
527 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
528 | #endif |
524 | #endif |
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525 | |
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526 | /*****************************************************************************/ |
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527 | |
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528 | #ifdef __linux |
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529 | # include <sys/utsname.h> |
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530 | #endif |
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531 | |
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532 | static unsigned int noinline |
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533 | ev_linux_version (void) |
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534 | { |
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535 | #ifdef __linux |
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536 | unsigned int v = 0; |
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537 | struct utsname buf; |
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538 | int i; |
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539 | char *p = buf.release; |
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540 | |
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541 | if (uname (&buf)) |
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542 | return 0; |
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543 | |
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544 | for (i = 3+1; --i; ) |
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545 | { |
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546 | unsigned int c = 0; |
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547 | |
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548 | for (;;) |
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549 | { |
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550 | if (*p >= '0' && *p <= '9') |
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551 | c = c * 10 + *p++ - '0'; |
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552 | else |
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553 | { |
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554 | p += *p == '.'; |
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555 | break; |
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556 | } |
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557 | } |
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558 | |
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559 | v = (v << 8) | c; |
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560 | } |
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561 | |
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562 | return v; |
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563 | #else |
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564 | return 0; |
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565 | #endif |
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566 | } |
529 | |
567 | |
530 | /*****************************************************************************/ |
568 | /*****************************************************************************/ |
531 | |
569 | |
532 | #if EV_AVOID_STDIO |
570 | #if EV_AVOID_STDIO |
533 | static void noinline |
571 | static void noinline |
… | |
… | |
554 | if (syserr_cb) |
592 | if (syserr_cb) |
555 | syserr_cb (msg); |
593 | syserr_cb (msg); |
556 | else |
594 | else |
557 | { |
595 | { |
558 | #if EV_AVOID_STDIO |
596 | #if EV_AVOID_STDIO |
559 | const char *err = strerror (errno); |
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560 | |
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561 | ev_printerr (msg); |
597 | ev_printerr (msg); |
562 | ev_printerr (": "); |
598 | ev_printerr (": "); |
563 | ev_printerr (err); |
599 | ev_printerr (strerror (errno)); |
564 | ev_printerr ("\n"); |
600 | ev_printerr ("\n"); |
565 | #else |
601 | #else |
566 | perror (msg); |
602 | perror (msg); |
567 | #endif |
603 | #endif |
568 | abort (); |
604 | abort (); |
… | |
… | |
602 | ptr = alloc (ptr, size); |
638 | ptr = alloc (ptr, size); |
603 | |
639 | |
604 | if (!ptr && size) |
640 | if (!ptr && size) |
605 | { |
641 | { |
606 | #if EV_AVOID_STDIO |
642 | #if EV_AVOID_STDIO |
607 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
643 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
608 | #else |
644 | #else |
609 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
645 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
610 | #endif |
646 | #endif |
611 | abort (); |
647 | abort (); |
612 | } |
648 | } |
613 | |
649 | |
614 | return ptr; |
650 | return ptr; |
… | |
… | |
631 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
667 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
632 | unsigned char unused; |
668 | unsigned char unused; |
633 | #if EV_USE_EPOLL |
669 | #if EV_USE_EPOLL |
634 | unsigned int egen; /* generation counter to counter epoll bugs */ |
670 | unsigned int egen; /* generation counter to counter epoll bugs */ |
635 | #endif |
671 | #endif |
636 | #if EV_SELECT_IS_WINSOCKET |
672 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
637 | SOCKET handle; |
673 | SOCKET handle; |
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674 | #endif |
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675 | #if EV_USE_IOCP |
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676 | OVERLAPPED or, ow; |
638 | #endif |
677 | #endif |
639 | } ANFD; |
678 | } ANFD; |
640 | |
679 | |
641 | /* stores the pending event set for a given watcher */ |
680 | /* stores the pending event set for a given watcher */ |
642 | typedef struct |
681 | typedef struct |
… | |
… | |
707 | # define EV_RELEASE_CB (void)0 |
746 | # define EV_RELEASE_CB (void)0 |
708 | # define EV_ACQUIRE_CB (void)0 |
747 | # define EV_ACQUIRE_CB (void)0 |
709 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
748 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
710 | #endif |
749 | #endif |
711 | |
750 | |
712 | #define EVUNLOOP_RECURSE 0x80 |
751 | #define EVBREAK_RECURSE 0x80 |
713 | |
752 | |
714 | /*****************************************************************************/ |
753 | /*****************************************************************************/ |
715 | |
754 | |
716 | #ifndef EV_HAVE_EV_TIME |
755 | #ifndef EV_HAVE_EV_TIME |
717 | ev_tstamp |
756 | ev_tstamp |
… | |
… | |
761 | if (delay > 0.) |
800 | if (delay > 0.) |
762 | { |
801 | { |
763 | #if EV_USE_NANOSLEEP |
802 | #if EV_USE_NANOSLEEP |
764 | struct timespec ts; |
803 | struct timespec ts; |
765 | |
804 | |
766 | ts.tv_sec = (time_t)delay; |
805 | EV_TS_SET (ts, delay); |
767 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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768 | |
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769 | nanosleep (&ts, 0); |
806 | nanosleep (&ts, 0); |
770 | #elif defined(_WIN32) |
807 | #elif defined(_WIN32) |
771 | Sleep ((unsigned long)(delay * 1e3)); |
808 | Sleep ((unsigned long)(delay * 1e3)); |
772 | #else |
809 | #else |
773 | struct timeval tv; |
810 | struct timeval tv; |
774 | |
811 | |
775 | tv.tv_sec = (time_t)delay; |
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776 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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777 | |
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778 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
812 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
779 | /* something not guaranteed by newer posix versions, but guaranteed */ |
813 | /* something not guaranteed by newer posix versions, but guaranteed */ |
780 | /* by older ones */ |
814 | /* by older ones */ |
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815 | EV_TV_SET (tv, delay); |
781 | select (0, 0, 0, 0, &tv); |
816 | select (0, 0, 0, 0, &tv); |
782 | #endif |
817 | #endif |
783 | } |
818 | } |
784 | } |
819 | } |
785 | |
820 | |
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821 | inline_speed int |
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822 | ev_timeout_to_ms (ev_tstamp timeout) |
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823 | { |
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824 | int ms = timeout * 1000. + .999999; |
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825 | |
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826 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
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827 | } |
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828 | |
786 | /*****************************************************************************/ |
829 | /*****************************************************************************/ |
787 | |
830 | |
788 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
831 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
789 | |
832 | |
790 | /* find a suitable new size for the given array, */ |
833 | /* find a suitable new size for the given array, */ |
791 | /* hopefully by rounding to a ncie-to-malloc size */ |
834 | /* hopefully by rounding to a nice-to-malloc size */ |
792 | inline_size int |
835 | inline_size int |
793 | array_nextsize (int elem, int cur, int cnt) |
836 | array_nextsize (int elem, int cur, int cnt) |
794 | { |
837 | { |
795 | int ncur = cur + 1; |
838 | int ncur = cur + 1; |
796 | |
839 | |
… | |
… | |
937 | { |
980 | { |
938 | int fd = fdchanges [i]; |
981 | int fd = fdchanges [i]; |
939 | ANFD *anfd = anfds + fd; |
982 | ANFD *anfd = anfds + fd; |
940 | ev_io *w; |
983 | ev_io *w; |
941 | |
984 | |
942 | unsigned char events = 0; |
985 | unsigned char o_events = anfd->events; |
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|
986 | unsigned char o_reify = anfd->reify; |
943 | |
987 | |
944 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
988 | anfd->reify = 0; |
945 | events |= (unsigned char)w->events; |
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946 | |
989 | |
947 | #if EV_SELECT_IS_WINSOCKET |
990 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
948 | if (events) |
991 | if (o_reify & EV__IOFDSET) |
949 | { |
992 | { |
950 | unsigned long arg; |
993 | unsigned long arg; |
951 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
994 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
952 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
995 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
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996 | printf ("oi %d %x\n", fd, anfd->handle);//D |
953 | } |
997 | } |
954 | #endif |
998 | #endif |
955 | |
999 | |
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1000 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
956 | { |
1001 | { |
957 | unsigned char o_events = anfd->events; |
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958 | unsigned char o_reify = anfd->reify; |
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959 | |
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960 | anfd->reify = 0; |
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961 | anfd->events = events; |
1002 | anfd->events = 0; |
962 | |
1003 | |
963 | if (o_events != events || o_reify & EV__IOFDSET) |
1004 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
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1005 | anfd->events |= (unsigned char)w->events; |
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1006 | |
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1007 | if (o_events != anfd->events) |
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1008 | o_reify = EV__IOFDSET; /* actually |= */ |
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1009 | } |
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1010 | |
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1011 | if (o_reify & EV__IOFDSET) |
964 | backend_modify (EV_A_ fd, o_events, events); |
1012 | backend_modify (EV_A_ fd, o_events, anfd->events); |
965 | } |
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|
966 | } |
1013 | } |
967 | |
1014 | |
968 | fdchangecnt = 0; |
1015 | fdchangecnt = 0; |
969 | } |
1016 | } |
970 | |
1017 | |
… | |
… | |
1063 | } |
1110 | } |
1064 | |
1111 | |
1065 | /*****************************************************************************/ |
1112 | /*****************************************************************************/ |
1066 | |
1113 | |
1067 | /* |
1114 | /* |
1068 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1115 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1069 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1116 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1070 | * the branching factor of the d-tree. |
1117 | * the branching factor of the d-tree. |
1071 | */ |
1118 | */ |
1072 | |
1119 | |
1073 | /* |
1120 | /* |
… | |
… | |
1273 | uint64_t counter = 1; |
1320 | uint64_t counter = 1; |
1274 | write (evfd, &counter, sizeof (uint64_t)); |
1321 | write (evfd, &counter, sizeof (uint64_t)); |
1275 | } |
1322 | } |
1276 | else |
1323 | else |
1277 | #endif |
1324 | #endif |
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1325 | /* win32 people keep sending patches that change this write() to send() */ |
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1326 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
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1327 | /* so when you think this write should be a send instead, please find out */ |
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1328 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1329 | /* tell me. thank you. */ |
1278 | write (evpipe [1], &dummy, 1); |
1330 | write (evpipe [1], &dummy, 1); |
1279 | |
1331 | |
1280 | errno = old_errno; |
1332 | errno = old_errno; |
1281 | } |
1333 | } |
1282 | } |
1334 | } |
… | |
… | |
1296 | } |
1348 | } |
1297 | else |
1349 | else |
1298 | #endif |
1350 | #endif |
1299 | { |
1351 | { |
1300 | char dummy; |
1352 | char dummy; |
|
|
1353 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1301 | read (evpipe [0], &dummy, 1); |
1354 | read (evpipe [0], &dummy, 1); |
1302 | } |
1355 | } |
1303 | |
1356 | |
|
|
1357 | #if EV_SIGNAL_ENABLE |
1304 | if (sig_pending) |
1358 | if (sig_pending) |
1305 | { |
1359 | { |
1306 | sig_pending = 0; |
1360 | sig_pending = 0; |
1307 | |
1361 | |
1308 | for (i = EV_NSIG - 1; i--; ) |
1362 | for (i = EV_NSIG - 1; i--; ) |
1309 | if (expect_false (signals [i].pending)) |
1363 | if (expect_false (signals [i].pending)) |
1310 | ev_feed_signal_event (EV_A_ i + 1); |
1364 | ev_feed_signal_event (EV_A_ i + 1); |
1311 | } |
1365 | } |
|
|
1366 | #endif |
1312 | |
1367 | |
1313 | #if EV_ASYNC_ENABLE |
1368 | #if EV_ASYNC_ENABLE |
1314 | if (async_pending) |
1369 | if (async_pending) |
1315 | { |
1370 | { |
1316 | async_pending = 0; |
1371 | async_pending = 0; |
… | |
… | |
1325 | #endif |
1380 | #endif |
1326 | } |
1381 | } |
1327 | |
1382 | |
1328 | /*****************************************************************************/ |
1383 | /*****************************************************************************/ |
1329 | |
1384 | |
|
|
1385 | void |
|
|
1386 | ev_feed_signal (int signum) |
|
|
1387 | { |
|
|
1388 | #if EV_MULTIPLICITY |
|
|
1389 | EV_P = signals [signum - 1].loop; |
|
|
1390 | |
|
|
1391 | if (!EV_A) |
|
|
1392 | return; |
|
|
1393 | #endif |
|
|
1394 | |
|
|
1395 | signals [signum - 1].pending = 1; |
|
|
1396 | evpipe_write (EV_A_ &sig_pending); |
|
|
1397 | } |
|
|
1398 | |
1330 | static void |
1399 | static void |
1331 | ev_sighandler (int signum) |
1400 | ev_sighandler (int signum) |
1332 | { |
1401 | { |
1333 | #if EV_MULTIPLICITY |
|
|
1334 | EV_P = signals [signum - 1].loop; |
|
|
1335 | #endif |
|
|
1336 | |
|
|
1337 | #ifdef _WIN32 |
1402 | #ifdef _WIN32 |
1338 | signal (signum, ev_sighandler); |
1403 | signal (signum, ev_sighandler); |
1339 | #endif |
1404 | #endif |
1340 | |
1405 | |
1341 | signals [signum - 1].pending = 1; |
1406 | ev_feed_signal (signum); |
1342 | evpipe_write (EV_A_ &sig_pending); |
|
|
1343 | } |
1407 | } |
1344 | |
1408 | |
1345 | void noinline |
1409 | void noinline |
1346 | ev_feed_signal_event (EV_P_ int signum) |
1410 | ev_feed_signal_event (EV_P_ int signum) |
1347 | { |
1411 | { |
… | |
… | |
1447 | |
1511 | |
1448 | #endif |
1512 | #endif |
1449 | |
1513 | |
1450 | /*****************************************************************************/ |
1514 | /*****************************************************************************/ |
1451 | |
1515 | |
|
|
1516 | #if EV_USE_IOCP |
|
|
1517 | # include "ev_iocp.c" |
|
|
1518 | #endif |
1452 | #if EV_USE_PORT |
1519 | #if EV_USE_PORT |
1453 | # include "ev_port.c" |
1520 | # include "ev_port.c" |
1454 | #endif |
1521 | #endif |
1455 | #if EV_USE_KQUEUE |
1522 | #if EV_USE_KQUEUE |
1456 | # include "ev_kqueue.c" |
1523 | # include "ev_kqueue.c" |
… | |
… | |
1529 | ev_embeddable_backends (void) |
1596 | ev_embeddable_backends (void) |
1530 | { |
1597 | { |
1531 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1598 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1532 | |
1599 | |
1533 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1600 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1534 | /* please fix it and tell me how to detect the fix */ |
1601 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1535 | flags &= ~EVBACKEND_EPOLL; |
1602 | flags &= ~EVBACKEND_EPOLL; |
1536 | |
1603 | |
1537 | return flags; |
1604 | return flags; |
1538 | } |
1605 | } |
1539 | |
1606 | |
1540 | unsigned int |
1607 | unsigned int |
… | |
… | |
1596 | static void noinline |
1663 | static void noinline |
1597 | loop_init (EV_P_ unsigned int flags) |
1664 | loop_init (EV_P_ unsigned int flags) |
1598 | { |
1665 | { |
1599 | if (!backend) |
1666 | if (!backend) |
1600 | { |
1667 | { |
|
|
1668 | origflags = flags; |
|
|
1669 | |
1601 | #if EV_USE_REALTIME |
1670 | #if EV_USE_REALTIME |
1602 | if (!have_realtime) |
1671 | if (!have_realtime) |
1603 | { |
1672 | { |
1604 | struct timespec ts; |
1673 | struct timespec ts; |
1605 | |
1674 | |
… | |
… | |
1650 | #endif |
1719 | #endif |
1651 | #if EV_USE_SIGNALFD |
1720 | #if EV_USE_SIGNALFD |
1652 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1721 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1653 | #endif |
1722 | #endif |
1654 | |
1723 | |
1655 | if (!(flags & 0x0000ffffU)) |
1724 | if (!(flags & EVBACKEND_MASK)) |
1656 | flags |= ev_recommended_backends (); |
1725 | flags |= ev_recommended_backends (); |
1657 | |
1726 | |
|
|
1727 | #if EV_USE_IOCP |
|
|
1728 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1729 | #endif |
1658 | #if EV_USE_PORT |
1730 | #if EV_USE_PORT |
1659 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1731 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1660 | #endif |
1732 | #endif |
1661 | #if EV_USE_KQUEUE |
1733 | #if EV_USE_KQUEUE |
1662 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1734 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1679 | #endif |
1751 | #endif |
1680 | } |
1752 | } |
1681 | } |
1753 | } |
1682 | |
1754 | |
1683 | /* free up a loop structure */ |
1755 | /* free up a loop structure */ |
1684 | static void noinline |
1756 | void |
1685 | loop_destroy (EV_P) |
1757 | ev_loop_destroy (EV_P) |
1686 | { |
1758 | { |
1687 | int i; |
1759 | int i; |
|
|
1760 | |
|
|
1761 | #if EV_MULTIPLICITY |
|
|
1762 | /* mimic free (0) */ |
|
|
1763 | if (!EV_A) |
|
|
1764 | return; |
|
|
1765 | #endif |
|
|
1766 | |
|
|
1767 | #if EV_CLEANUP_ENABLE |
|
|
1768 | /* queue cleanup watchers (and execute them) */ |
|
|
1769 | if (expect_false (cleanupcnt)) |
|
|
1770 | { |
|
|
1771 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1772 | EV_INVOKE_PENDING; |
|
|
1773 | } |
|
|
1774 | #endif |
|
|
1775 | |
|
|
1776 | #if EV_CHILD_ENABLE |
|
|
1777 | if (ev_is_active (&childev)) |
|
|
1778 | { |
|
|
1779 | ev_ref (EV_A); /* child watcher */ |
|
|
1780 | ev_signal_stop (EV_A_ &childev); |
|
|
1781 | } |
|
|
1782 | #endif |
1688 | |
1783 | |
1689 | if (ev_is_active (&pipe_w)) |
1784 | if (ev_is_active (&pipe_w)) |
1690 | { |
1785 | { |
1691 | /*ev_ref (EV_A);*/ |
1786 | /*ev_ref (EV_A);*/ |
1692 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1787 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1714 | #endif |
1809 | #endif |
1715 | |
1810 | |
1716 | if (backend_fd >= 0) |
1811 | if (backend_fd >= 0) |
1717 | close (backend_fd); |
1812 | close (backend_fd); |
1718 | |
1813 | |
|
|
1814 | #if EV_USE_IOCP |
|
|
1815 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1816 | #endif |
1719 | #if EV_USE_PORT |
1817 | #if EV_USE_PORT |
1720 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1818 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1721 | #endif |
1819 | #endif |
1722 | #if EV_USE_KQUEUE |
1820 | #if EV_USE_KQUEUE |
1723 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1821 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1750 | array_free (periodic, EMPTY); |
1848 | array_free (periodic, EMPTY); |
1751 | #endif |
1849 | #endif |
1752 | #if EV_FORK_ENABLE |
1850 | #if EV_FORK_ENABLE |
1753 | array_free (fork, EMPTY); |
1851 | array_free (fork, EMPTY); |
1754 | #endif |
1852 | #endif |
|
|
1853 | #if EV_CLEANUP_ENABLE |
|
|
1854 | array_free (cleanup, EMPTY); |
|
|
1855 | #endif |
1755 | array_free (prepare, EMPTY); |
1856 | array_free (prepare, EMPTY); |
1756 | array_free (check, EMPTY); |
1857 | array_free (check, EMPTY); |
1757 | #if EV_ASYNC_ENABLE |
1858 | #if EV_ASYNC_ENABLE |
1758 | array_free (async, EMPTY); |
1859 | array_free (async, EMPTY); |
1759 | #endif |
1860 | #endif |
1760 | |
1861 | |
1761 | backend = 0; |
1862 | backend = 0; |
|
|
1863 | |
|
|
1864 | #if EV_MULTIPLICITY |
|
|
1865 | if (ev_is_default_loop (EV_A)) |
|
|
1866 | #endif |
|
|
1867 | ev_default_loop_ptr = 0; |
|
|
1868 | #if EV_MULTIPLICITY |
|
|
1869 | else |
|
|
1870 | ev_free (EV_A); |
|
|
1871 | #endif |
1762 | } |
1872 | } |
1763 | |
1873 | |
1764 | #if EV_USE_INOTIFY |
1874 | #if EV_USE_INOTIFY |
1765 | inline_size void infy_fork (EV_P); |
1875 | inline_size void infy_fork (EV_P); |
1766 | #endif |
1876 | #endif |
… | |
… | |
1825 | loop_init (EV_A_ flags); |
1935 | loop_init (EV_A_ flags); |
1826 | |
1936 | |
1827 | if (ev_backend (EV_A)) |
1937 | if (ev_backend (EV_A)) |
1828 | return EV_A; |
1938 | return EV_A; |
1829 | |
1939 | |
|
|
1940 | ev_free (EV_A); |
1830 | return 0; |
1941 | return 0; |
1831 | } |
1942 | } |
1832 | |
1943 | |
1833 | void |
|
|
1834 | ev_loop_destroy (EV_P) |
|
|
1835 | { |
|
|
1836 | loop_destroy (EV_A); |
|
|
1837 | ev_free (loop); |
|
|
1838 | } |
|
|
1839 | |
|
|
1840 | void |
|
|
1841 | ev_loop_fork (EV_P) |
|
|
1842 | { |
|
|
1843 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1844 | } |
|
|
1845 | #endif /* multiplicity */ |
1944 | #endif /* multiplicity */ |
1846 | |
1945 | |
1847 | #if EV_VERIFY |
1946 | #if EV_VERIFY |
1848 | static void noinline |
1947 | static void noinline |
1849 | verify_watcher (EV_P_ W w) |
1948 | verify_watcher (EV_P_ W w) |
… | |
… | |
1924 | #if EV_FORK_ENABLE |
2023 | #if EV_FORK_ENABLE |
1925 | assert (forkmax >= forkcnt); |
2024 | assert (forkmax >= forkcnt); |
1926 | array_verify (EV_A_ (W *)forks, forkcnt); |
2025 | array_verify (EV_A_ (W *)forks, forkcnt); |
1927 | #endif |
2026 | #endif |
1928 | |
2027 | |
|
|
2028 | #if EV_CLEANUP_ENABLE |
|
|
2029 | assert (cleanupmax >= cleanupcnt); |
|
|
2030 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2031 | #endif |
|
|
2032 | |
1929 | #if EV_ASYNC_ENABLE |
2033 | #if EV_ASYNC_ENABLE |
1930 | assert (asyncmax >= asynccnt); |
2034 | assert (asyncmax >= asynccnt); |
1931 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2035 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1932 | #endif |
2036 | #endif |
1933 | |
2037 | |
… | |
… | |
1951 | } |
2055 | } |
1952 | #endif |
2056 | #endif |
1953 | |
2057 | |
1954 | #if EV_MULTIPLICITY |
2058 | #if EV_MULTIPLICITY |
1955 | struct ev_loop * |
2059 | struct ev_loop * |
1956 | ev_default_loop_init (unsigned int flags) |
|
|
1957 | #else |
2060 | #else |
1958 | int |
2061 | int |
|
|
2062 | #endif |
1959 | ev_default_loop (unsigned int flags) |
2063 | ev_default_loop (unsigned int flags) |
1960 | #endif |
|
|
1961 | { |
2064 | { |
1962 | if (!ev_default_loop_ptr) |
2065 | if (!ev_default_loop_ptr) |
1963 | { |
2066 | { |
1964 | #if EV_MULTIPLICITY |
2067 | #if EV_MULTIPLICITY |
1965 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2068 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1984 | |
2087 | |
1985 | return ev_default_loop_ptr; |
2088 | return ev_default_loop_ptr; |
1986 | } |
2089 | } |
1987 | |
2090 | |
1988 | void |
2091 | void |
1989 | ev_default_destroy (void) |
2092 | ev_loop_fork (EV_P) |
1990 | { |
2093 | { |
1991 | #if EV_MULTIPLICITY |
|
|
1992 | EV_P = ev_default_loop_ptr; |
|
|
1993 | #endif |
|
|
1994 | |
|
|
1995 | ev_default_loop_ptr = 0; |
|
|
1996 | |
|
|
1997 | #if EV_CHILD_ENABLE |
|
|
1998 | ev_ref (EV_A); /* child watcher */ |
|
|
1999 | ev_signal_stop (EV_A_ &childev); |
|
|
2000 | #endif |
|
|
2001 | |
|
|
2002 | loop_destroy (EV_A); |
|
|
2003 | } |
|
|
2004 | |
|
|
2005 | void |
|
|
2006 | ev_default_fork (void) |
|
|
2007 | { |
|
|
2008 | #if EV_MULTIPLICITY |
|
|
2009 | EV_P = ev_default_loop_ptr; |
|
|
2010 | #endif |
|
|
2011 | |
|
|
2012 | postfork = 1; /* must be in line with ev_loop_fork */ |
2094 | postfork = 1; /* must be in line with ev_default_fork */ |
2013 | } |
2095 | } |
2014 | |
2096 | |
2015 | /*****************************************************************************/ |
2097 | /*****************************************************************************/ |
2016 | |
2098 | |
2017 | void |
2099 | void |
… | |
… | |
2039 | |
2121 | |
2040 | for (pri = NUMPRI; pri--; ) |
2122 | for (pri = NUMPRI; pri--; ) |
2041 | while (pendingcnt [pri]) |
2123 | while (pendingcnt [pri]) |
2042 | { |
2124 | { |
2043 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2125 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2044 | |
|
|
2045 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2046 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2047 | |
2126 | |
2048 | p->w->pending = 0; |
2127 | p->w->pending = 0; |
2049 | EV_CB_INVOKE (p->w, p->events); |
2128 | EV_CB_INVOKE (p->w, p->events); |
2050 | EV_FREQUENT_CHECK; |
2129 | EV_FREQUENT_CHECK; |
2051 | } |
2130 | } |
… | |
… | |
2113 | feed_reverse_done (EV_A_ EV_TIMER); |
2192 | feed_reverse_done (EV_A_ EV_TIMER); |
2114 | } |
2193 | } |
2115 | } |
2194 | } |
2116 | |
2195 | |
2117 | #if EV_PERIODIC_ENABLE |
2196 | #if EV_PERIODIC_ENABLE |
|
|
2197 | |
|
|
2198 | inline_speed |
|
|
2199 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2200 | { |
|
|
2201 | /* TODO: use slow but potentially more correct incremental algo, */ |
|
|
2202 | /* also do not rely on ceil */ |
|
|
2203 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2204 | } |
|
|
2205 | |
2118 | /* make periodics pending */ |
2206 | /* make periodics pending */ |
2119 | inline_size void |
2207 | inline_size void |
2120 | periodics_reify (EV_P) |
2208 | periodics_reify (EV_P) |
2121 | { |
2209 | { |
2122 | EV_FREQUENT_CHECK; |
2210 | EV_FREQUENT_CHECK; |
… | |
… | |
2141 | ANHE_at_cache (periodics [HEAP0]); |
2229 | ANHE_at_cache (periodics [HEAP0]); |
2142 | downheap (periodics, periodiccnt, HEAP0); |
2230 | downheap (periodics, periodiccnt, HEAP0); |
2143 | } |
2231 | } |
2144 | else if (w->interval) |
2232 | else if (w->interval) |
2145 | { |
2233 | { |
2146 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2234 | periodic_recalc (EV_A_ w); |
|
|
2235 | |
2147 | /* if next trigger time is not sufficiently in the future, put it there */ |
2236 | /* if next trigger time is not sufficiently in the future, put it there */ |
2148 | /* this might happen because of floating point inexactness */ |
2237 | /* this might happen because of floating point inexactness */ |
2149 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
2238 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
2150 | { |
2239 | { |
2151 | ev_at (w) += w->interval; |
2240 | ev_at (w) += w->interval; |
… | |
… | |
2171 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2260 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2172 | } |
2261 | } |
2173 | } |
2262 | } |
2174 | |
2263 | |
2175 | /* simply recalculate all periodics */ |
2264 | /* simply recalculate all periodics */ |
2176 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2265 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2177 | static void noinline |
2266 | static void noinline |
2178 | periodics_reschedule (EV_P) |
2267 | periodics_reschedule (EV_P) |
2179 | { |
2268 | { |
2180 | int i; |
2269 | int i; |
2181 | |
2270 | |
… | |
… | |
2185 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2274 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2186 | |
2275 | |
2187 | if (w->reschedule_cb) |
2276 | if (w->reschedule_cb) |
2188 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2277 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2189 | else if (w->interval) |
2278 | else if (w->interval) |
2190 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2279 | periodic_recalc (EV_A_ w); |
2191 | |
2280 | |
2192 | ANHE_at_cache (periodics [i]); |
2281 | ANHE_at_cache (periodics [i]); |
2193 | } |
2282 | } |
2194 | |
2283 | |
2195 | reheap (periodics, periodiccnt); |
2284 | reheap (periodics, periodiccnt); |
… | |
… | |
2277 | mn_now = ev_rt_now; |
2366 | mn_now = ev_rt_now; |
2278 | } |
2367 | } |
2279 | } |
2368 | } |
2280 | |
2369 | |
2281 | void |
2370 | void |
2282 | ev_loop (EV_P_ int flags) |
2371 | ev_run (EV_P_ int flags) |
2283 | { |
2372 | { |
2284 | #if EV_FEATURE_API |
2373 | #if EV_FEATURE_API |
2285 | ++loop_depth; |
2374 | ++loop_depth; |
2286 | #endif |
2375 | #endif |
2287 | |
2376 | |
2288 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2377 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2289 | |
2378 | |
2290 | loop_done = EVUNLOOP_CANCEL; |
2379 | loop_done = EVBREAK_CANCEL; |
2291 | |
2380 | |
2292 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2381 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2293 | |
2382 | |
2294 | do |
2383 | do |
2295 | { |
2384 | { |
… | |
… | |
2338 | /* calculate blocking time */ |
2427 | /* calculate blocking time */ |
2339 | { |
2428 | { |
2340 | ev_tstamp waittime = 0.; |
2429 | ev_tstamp waittime = 0.; |
2341 | ev_tstamp sleeptime = 0.; |
2430 | ev_tstamp sleeptime = 0.; |
2342 | |
2431 | |
|
|
2432 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2433 | ev_tstamp prev_mn_now = mn_now; |
|
|
2434 | |
|
|
2435 | /* update time to cancel out callback processing overhead */ |
|
|
2436 | time_update (EV_A_ 1e100); |
|
|
2437 | |
2343 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2438 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2344 | { |
2439 | { |
2345 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2346 | ev_tstamp prev_mn_now = mn_now; |
|
|
2347 | |
|
|
2348 | /* update time to cancel out callback processing overhead */ |
|
|
2349 | time_update (EV_A_ 1e100); |
|
|
2350 | |
|
|
2351 | waittime = MAX_BLOCKTIME; |
2440 | waittime = MAX_BLOCKTIME; |
2352 | |
2441 | |
2353 | if (timercnt) |
2442 | if (timercnt) |
2354 | { |
2443 | { |
2355 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2444 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2385 | } |
2474 | } |
2386 | |
2475 | |
2387 | #if EV_FEATURE_API |
2476 | #if EV_FEATURE_API |
2388 | ++loop_count; |
2477 | ++loop_count; |
2389 | #endif |
2478 | #endif |
2390 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2479 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2391 | backend_poll (EV_A_ waittime); |
2480 | backend_poll (EV_A_ waittime); |
2392 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2481 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2393 | |
2482 | |
2394 | /* update ev_rt_now, do magic */ |
2483 | /* update ev_rt_now, do magic */ |
2395 | time_update (EV_A_ waittime + sleeptime); |
2484 | time_update (EV_A_ waittime + sleeptime); |
2396 | } |
2485 | } |
2397 | |
2486 | |
… | |
… | |
2415 | EV_INVOKE_PENDING; |
2504 | EV_INVOKE_PENDING; |
2416 | } |
2505 | } |
2417 | while (expect_true ( |
2506 | while (expect_true ( |
2418 | activecnt |
2507 | activecnt |
2419 | && !loop_done |
2508 | && !loop_done |
2420 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2509 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2421 | )); |
2510 | )); |
2422 | |
2511 | |
2423 | if (loop_done == EVUNLOOP_ONE) |
2512 | if (loop_done == EVBREAK_ONE) |
2424 | loop_done = EVUNLOOP_CANCEL; |
2513 | loop_done = EVBREAK_CANCEL; |
2425 | |
2514 | |
2426 | #if EV_FEATURE_API |
2515 | #if EV_FEATURE_API |
2427 | --loop_depth; |
2516 | --loop_depth; |
2428 | #endif |
2517 | #endif |
2429 | } |
2518 | } |
2430 | |
2519 | |
2431 | void |
2520 | void |
2432 | ev_unloop (EV_P_ int how) |
2521 | ev_break (EV_P_ int how) |
2433 | { |
2522 | { |
2434 | loop_done = how; |
2523 | loop_done = how; |
2435 | } |
2524 | } |
2436 | |
2525 | |
2437 | void |
2526 | void |
… | |
… | |
2585 | EV_FREQUENT_CHECK; |
2674 | EV_FREQUENT_CHECK; |
2586 | |
2675 | |
2587 | wlist_del (&anfds[w->fd].head, (WL)w); |
2676 | wlist_del (&anfds[w->fd].head, (WL)w); |
2588 | ev_stop (EV_A_ (W)w); |
2677 | ev_stop (EV_A_ (W)w); |
2589 | |
2678 | |
2590 | fd_change (EV_A_ w->fd, 1); |
2679 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2591 | |
2680 | |
2592 | EV_FREQUENT_CHECK; |
2681 | EV_FREQUENT_CHECK; |
2593 | } |
2682 | } |
2594 | |
2683 | |
2595 | void noinline |
2684 | void noinline |
… | |
… | |
2687 | if (w->reschedule_cb) |
2776 | if (w->reschedule_cb) |
2688 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2777 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2689 | else if (w->interval) |
2778 | else if (w->interval) |
2690 | { |
2779 | { |
2691 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2780 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2692 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2781 | periodic_recalc (EV_A_ w); |
2693 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2694 | } |
2782 | } |
2695 | else |
2783 | else |
2696 | ev_at (w) = w->offset; |
2784 | ev_at (w) = w->offset; |
2697 | |
2785 | |
2698 | EV_FREQUENT_CHECK; |
2786 | EV_FREQUENT_CHECK; |
… | |
… | |
2819 | sa.sa_handler = ev_sighandler; |
2907 | sa.sa_handler = ev_sighandler; |
2820 | sigfillset (&sa.sa_mask); |
2908 | sigfillset (&sa.sa_mask); |
2821 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2909 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2822 | sigaction (w->signum, &sa, 0); |
2910 | sigaction (w->signum, &sa, 0); |
2823 | |
2911 | |
|
|
2912 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2913 | { |
2824 | sigemptyset (&sa.sa_mask); |
2914 | sigemptyset (&sa.sa_mask); |
2825 | sigaddset (&sa.sa_mask, w->signum); |
2915 | sigaddset (&sa.sa_mask, w->signum); |
2826 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2916 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2917 | } |
2827 | #endif |
2918 | #endif |
2828 | } |
2919 | } |
2829 | |
2920 | |
2830 | EV_FREQUENT_CHECK; |
2921 | EV_FREQUENT_CHECK; |
2831 | } |
2922 | } |
… | |
… | |
3047 | { |
3138 | { |
3048 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3139 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3049 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3140 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3050 | ofs += sizeof (struct inotify_event) + ev->len; |
3141 | ofs += sizeof (struct inotify_event) + ev->len; |
3051 | } |
3142 | } |
3052 | } |
|
|
3053 | |
|
|
3054 | inline_size unsigned int |
|
|
3055 | ev_linux_version (void) |
|
|
3056 | { |
|
|
3057 | struct utsname buf; |
|
|
3058 | unsigned int v; |
|
|
3059 | int i; |
|
|
3060 | char *p = buf.release; |
|
|
3061 | |
|
|
3062 | if (uname (&buf)) |
|
|
3063 | return 0; |
|
|
3064 | |
|
|
3065 | for (i = 3+1; --i; ) |
|
|
3066 | { |
|
|
3067 | unsigned int c = 0; |
|
|
3068 | |
|
|
3069 | for (;;) |
|
|
3070 | { |
|
|
3071 | if (*p >= '0' && *p <= '9') |
|
|
3072 | c = c * 10 + *p++ - '0'; |
|
|
3073 | else |
|
|
3074 | { |
|
|
3075 | p += *p == '.'; |
|
|
3076 | break; |
|
|
3077 | } |
|
|
3078 | } |
|
|
3079 | |
|
|
3080 | v = (v << 8) | c; |
|
|
3081 | } |
|
|
3082 | |
|
|
3083 | return v; |
|
|
3084 | } |
3143 | } |
3085 | |
3144 | |
3086 | inline_size void |
3145 | inline_size void |
3087 | ev_check_2625 (EV_P) |
3146 | ev_check_2625 (EV_P) |
3088 | { |
3147 | { |
… | |
… | |
3412 | |
3471 | |
3413 | #if EV_EMBED_ENABLE |
3472 | #if EV_EMBED_ENABLE |
3414 | void noinline |
3473 | void noinline |
3415 | ev_embed_sweep (EV_P_ ev_embed *w) |
3474 | ev_embed_sweep (EV_P_ ev_embed *w) |
3416 | { |
3475 | { |
3417 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3476 | ev_run (w->other, EVRUN_NOWAIT); |
3418 | } |
3477 | } |
3419 | |
3478 | |
3420 | static void |
3479 | static void |
3421 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3480 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3422 | { |
3481 | { |
3423 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3482 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3424 | |
3483 | |
3425 | if (ev_cb (w)) |
3484 | if (ev_cb (w)) |
3426 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3485 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3427 | else |
3486 | else |
3428 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3487 | ev_run (w->other, EVRUN_NOWAIT); |
3429 | } |
3488 | } |
3430 | |
3489 | |
3431 | static void |
3490 | static void |
3432 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3491 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3433 | { |
3492 | { |
… | |
… | |
3437 | EV_P = w->other; |
3496 | EV_P = w->other; |
3438 | |
3497 | |
3439 | while (fdchangecnt) |
3498 | while (fdchangecnt) |
3440 | { |
3499 | { |
3441 | fd_reify (EV_A); |
3500 | fd_reify (EV_A); |
3442 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3501 | ev_run (EV_A_ EVRUN_NOWAIT); |
3443 | } |
3502 | } |
3444 | } |
3503 | } |
3445 | } |
3504 | } |
3446 | |
3505 | |
3447 | static void |
3506 | static void |
… | |
… | |
3453 | |
3512 | |
3454 | { |
3513 | { |
3455 | EV_P = w->other; |
3514 | EV_P = w->other; |
3456 | |
3515 | |
3457 | ev_loop_fork (EV_A); |
3516 | ev_loop_fork (EV_A); |
3458 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3517 | ev_run (EV_A_ EVRUN_NOWAIT); |
3459 | } |
3518 | } |
3460 | |
3519 | |
3461 | ev_embed_start (EV_A_ w); |
3520 | ev_embed_start (EV_A_ w); |
3462 | } |
3521 | } |
3463 | |
3522 | |
… | |
… | |
3555 | |
3614 | |
3556 | EV_FREQUENT_CHECK; |
3615 | EV_FREQUENT_CHECK; |
3557 | } |
3616 | } |
3558 | #endif |
3617 | #endif |
3559 | |
3618 | |
3560 | #if EV_ASYNC_ENABLE |
3619 | #if EV_CLEANUP_ENABLE |
3561 | void |
3620 | void |
3562 | ev_async_start (EV_P_ ev_async *w) |
3621 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3563 | { |
3622 | { |
3564 | if (expect_false (ev_is_active (w))) |
3623 | if (expect_false (ev_is_active (w))) |
3565 | return; |
3624 | return; |
|
|
3625 | |
|
|
3626 | EV_FREQUENT_CHECK; |
|
|
3627 | |
|
|
3628 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3629 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3630 | cleanups [cleanupcnt - 1] = w; |
|
|
3631 | |
|
|
3632 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3633 | ev_unref (EV_A); |
|
|
3634 | EV_FREQUENT_CHECK; |
|
|
3635 | } |
|
|
3636 | |
|
|
3637 | void |
|
|
3638 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3639 | { |
|
|
3640 | clear_pending (EV_A_ (W)w); |
|
|
3641 | if (expect_false (!ev_is_active (w))) |
|
|
3642 | return; |
|
|
3643 | |
|
|
3644 | EV_FREQUENT_CHECK; |
|
|
3645 | ev_ref (EV_A); |
|
|
3646 | |
|
|
3647 | { |
|
|
3648 | int active = ev_active (w); |
|
|
3649 | |
|
|
3650 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3651 | ev_active (cleanups [active - 1]) = active; |
|
|
3652 | } |
|
|
3653 | |
|
|
3654 | ev_stop (EV_A_ (W)w); |
|
|
3655 | |
|
|
3656 | EV_FREQUENT_CHECK; |
|
|
3657 | } |
|
|
3658 | #endif |
|
|
3659 | |
|
|
3660 | #if EV_ASYNC_ENABLE |
|
|
3661 | void |
|
|
3662 | ev_async_start (EV_P_ ev_async *w) |
|
|
3663 | { |
|
|
3664 | if (expect_false (ev_is_active (w))) |
|
|
3665 | return; |
|
|
3666 | |
|
|
3667 | w->sent = 0; |
3566 | |
3668 | |
3567 | evpipe_init (EV_A); |
3669 | evpipe_init (EV_A); |
3568 | |
3670 | |
3569 | EV_FREQUENT_CHECK; |
3671 | EV_FREQUENT_CHECK; |
3570 | |
3672 | |
… | |
… | |
3790 | |
3892 | |
3791 | #if EV_MULTIPLICITY |
3893 | #if EV_MULTIPLICITY |
3792 | #include "ev_wrap.h" |
3894 | #include "ev_wrap.h" |
3793 | #endif |
3895 | #endif |
3794 | |
3896 | |
3795 | #ifdef __cplusplus |
3897 | EV_CPP(}) |
3796 | } |
|
|
3797 | #endif |
|
|
3798 | |
3898 | |