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Comparing libev/ev.c (file contents):
Revision 1.113 by root, Mon Nov 12 08:00:05 2007 UTC vs.
Revision 1.134 by root, Fri Nov 23 19:13:33 2007 UTC

… …
32#ifdef __cplusplus 32#ifdef __cplusplus
33extern "C" { 33extern "C" {
34#endif 34#endif
35 35
36#ifndef EV_STANDALONE 36#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H
38# include EV_CONFIG_H
39# else
37# include "config.h" 40# include "config.h"
41# endif
38 42
39# if HAVE_CLOCK_GETTIME 43# if HAVE_CLOCK_GETTIME
40# ifndef EV_USE_MONOTONIC 44# ifndef EV_USE_MONOTONIC
41# define EV_USE_MONOTONIC 1 45# define EV_USE_MONOTONIC 1
42# endif 46# endif
43# ifndef EV_USE_REALTIME 47# ifndef EV_USE_REALTIME
44# define EV_USE_REALTIME 1 48# define EV_USE_REALTIME 1
45# endif 49# endif
50# else
51# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0
53# endif
54# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0
56# endif
46# endif 57# endif
47 58
48# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) 59# ifndef EV_USE_SELECT
60# if HAVE_SELECT && HAVE_SYS_SELECT_H
49# define EV_USE_SELECT 1 61# define EV_USE_SELECT 1
62# else
63# define EV_USE_SELECT 0
64# endif
50# endif 65# endif
51 66
52# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) 67# ifndef EV_USE_POLL
68# if HAVE_POLL && HAVE_POLL_H
53# define EV_USE_POLL 1 69# define EV_USE_POLL 1
70# else
71# define EV_USE_POLL 0
72# endif
54# endif 73# endif
55 74
56# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) 75# ifndef EV_USE_EPOLL
76# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57# define EV_USE_EPOLL 1 77# define EV_USE_EPOLL 1
78# else
79# define EV_USE_EPOLL 0
80# endif
58# endif 81# endif
59 82
83# ifndef EV_USE_KQUEUE
60# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) 84# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61# define EV_USE_KQUEUE 1 85# define EV_USE_KQUEUE 1
86# else
87# define EV_USE_KQUEUE 0
88# endif
89# endif
90
91# ifndef EV_USE_PORT
92# if HAVE_PORT_H && HAVE_PORT_CREATE
93# define EV_USE_PORT 1
94# else
95# define EV_USE_PORT 0
96# endif
62# endif 97# endif
63 98
64#endif 99#endif
65 100
66#include <math.h> 101#include <math.h>
… …
90#endif 125#endif
91 126
92/**/ 127/**/
93 128
94#ifndef EV_USE_MONOTONIC 129#ifndef EV_USE_MONOTONIC
95# define EV_USE_MONOTONIC 1 130# define EV_USE_MONOTONIC 0
131#endif
132
133#ifndef EV_USE_REALTIME
134# define EV_USE_REALTIME 0
96#endif 135#endif
97 136
98#ifndef EV_USE_SELECT 137#ifndef EV_USE_SELECT
99# define EV_USE_SELECT 1 138# define EV_USE_SELECT 1
100# define EV_SELECT_USE_FD_SET 1
101#endif 139#endif
102 140
103#ifndef EV_USE_POLL 141#ifndef EV_USE_POLL
104# ifdef _WIN32 142# ifdef _WIN32
105# define EV_USE_POLL 0 143# define EV_USE_POLL 0
… …
114 152
115#ifndef EV_USE_KQUEUE 153#ifndef EV_USE_KQUEUE
116# define EV_USE_KQUEUE 0 154# define EV_USE_KQUEUE 0
117#endif 155#endif
118 156
119#ifndef EV_USE_REALTIME 157#ifndef EV_USE_PORT
120# define EV_USE_REALTIME 1 158# define EV_USE_PORT 0
121#endif 159#endif
122 160
123/**/ 161/**/
124
125/* darwin simply cannot be helped */
126#ifdef __APPLE__
127# undef EV_USE_POLL
128# undef EV_USE_KQUEUE
129#endif
130 162
131#ifndef CLOCK_MONOTONIC 163#ifndef CLOCK_MONOTONIC
132# undef EV_USE_MONOTONIC 164# undef EV_USE_MONOTONIC
133# define EV_USE_MONOTONIC 0 165# define EV_USE_MONOTONIC 0
134#endif 166#endif
… …
143#endif 175#endif
144 176
145/**/ 177/**/
146 178
147#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 179#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
148#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 180#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
149#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ 181#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
150/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 182/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
151 183
152#ifdef EV_H 184#ifdef EV_H
153# include EV_H 185# include EV_H
154#else 186#else
155# include "ev.h" 187# include "ev.h"
156#endif 188#endif
157 189
158#if __GNUC__ >= 3 190#if __GNUC__ >= 3
159# define expect(expr,value) __builtin_expect ((expr),(value)) 191# define expect(expr,value) __builtin_expect ((expr),(value))
160# define inline inline 192# define inline static inline
161#else 193#else
162# define expect(expr,value) (expr) 194# define expect(expr,value) (expr)
163# define inline static 195# define inline static
164#endif 196#endif
165 197
… …
167#define expect_true(expr) expect ((expr) != 0, 1) 199#define expect_true(expr) expect ((expr) != 0, 1)
168 200
169#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 201#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
170#define ABSPRI(w) ((w)->priority - EV_MINPRI) 202#define ABSPRI(w) ((w)->priority - EV_MINPRI)
171 203
172#define EMPTY /* required for microsofts broken pseudo-c compiler */ 204#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
205#define EMPTY2(a,b) /* used to suppress some warnings */
173 206
174typedef struct ev_watcher *W; 207typedef struct ev_watcher *W;
175typedef struct ev_watcher_list *WL; 208typedef struct ev_watcher_list *WL;
176typedef struct ev_watcher_time *WT; 209typedef struct ev_watcher_time *WT;
177 210
… …
257 #include "ev_vars.h" 290 #include "ev_vars.h"
258 #undef VAR 291 #undef VAR
259 }; 292 };
260 #include "ev_wrap.h" 293 #include "ev_wrap.h"
261 294
262 struct ev_loop default_loop_struct; 295 static struct ev_loop default_loop_struct;
263 static struct ev_loop *default_loop; 296 struct ev_loop *ev_default_loop_ptr;
264 297
265#else 298#else
266 299
267 ev_tstamp ev_rt_now; 300 ev_tstamp ev_rt_now;
268 #define VAR(name,decl) static decl; 301 #define VAR(name,decl) static decl;
269 #include "ev_vars.h" 302 #include "ev_vars.h"
270 #undef VAR 303 #undef VAR
271 304
272 static int default_loop; 305 static int ev_default_loop_ptr;
273 306
274#endif 307#endif
275 308
276/*****************************************************************************/ 309/*****************************************************************************/
277 310
… …
358void 391void
359ev_feed_event (EV_P_ void *w, int revents) 392ev_feed_event (EV_P_ void *w, int revents)
360{ 393{
361 W w_ = (W)w; 394 W w_ = (W)w;
362 395
363 if (w_->pending) 396 if (expect_false (w_->pending))
364 { 397 {
365 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 398 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
366 return; 399 return;
367 } 400 }
368 401
402 if (expect_false (!w_->cb))
403 return;
404
369 w_->pending = ++pendingcnt [ABSPRI (w_)]; 405 w_->pending = ++pendingcnt [ABSPRI (w_)];
370 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); 406 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
371 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 407 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
372 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 408 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
373} 409}
374 410
375static void 411static void
… …
402 fd_event (EV_A_ fd, revents); 438 fd_event (EV_A_ fd, revents);
403} 439}
404 440
405/*****************************************************************************/ 441/*****************************************************************************/
406 442
407static void 443inline void
408fd_reify (EV_P) 444fd_reify (EV_P)
409{ 445{
410 int i; 446 int i;
411 447
412 for (i = 0; i < fdchangecnt; ++i) 448 for (i = 0; i < fdchangecnt; ++i)
… …
429 } 465 }
430#endif 466#endif
431 467
432 anfd->reify = 0; 468 anfd->reify = 0;
433 469
434 method_modify (EV_A_ fd, anfd->events, events); 470 backend_modify (EV_A_ fd, anfd->events, events);
435 anfd->events = events; 471 anfd->events = events;
436 } 472 }
437 473
438 fdchangecnt = 0; 474 fdchangecnt = 0;
439} 475}
440 476
441static void 477static void
442fd_change (EV_P_ int fd) 478fd_change (EV_P_ int fd)
443{ 479{
444 if (anfds [fd].reify) 480 if (expect_false (anfds [fd].reify))
445 return; 481 return;
446 482
447 anfds [fd].reify = 1; 483 anfds [fd].reify = 1;
448 484
449 ++fdchangecnt; 485 ++fdchangecnt;
450 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 486 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
451 fdchanges [fdchangecnt - 1] = fd; 487 fdchanges [fdchangecnt - 1] = fd;
452} 488}
453 489
454static void 490static void
455fd_kill (EV_P_ int fd) 491fd_kill (EV_P_ int fd)
… …
461 ev_io_stop (EV_A_ w); 497 ev_io_stop (EV_A_ w);
462 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 498 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
463 } 499 }
464} 500}
465 501
466static int 502inline int
467fd_valid (int fd) 503fd_valid (int fd)
468{ 504{
469#ifdef _WIN32 505#ifdef _WIN32
470 return _get_osfhandle (fd) != -1; 506 return _get_osfhandle (fd) != -1;
471#else 507#else
… …
497 fd_kill (EV_A_ fd); 533 fd_kill (EV_A_ fd);
498 return; 534 return;
499 } 535 }
500} 536}
501 537
502/* usually called after fork if method needs to re-arm all fds from scratch */ 538/* usually called after fork if backend needs to re-arm all fds from scratch */
503static void 539static void
504fd_rearm_all (EV_P) 540fd_rearm_all (EV_P)
505{ 541{
506 int fd; 542 int fd;
507 543
… …
613ev_feed_signal_event (EV_P_ int signum) 649ev_feed_signal_event (EV_P_ int signum)
614{ 650{
615 WL w; 651 WL w;
616 652
617#if EV_MULTIPLICITY 653#if EV_MULTIPLICITY
618 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 654 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
619#endif 655#endif
620 656
621 --signum; 657 --signum;
622 658
623 if (signum < 0 || signum >= signalmax) 659 if (signum < 0 || signum >= signalmax)
… …
640 for (signum = signalmax; signum--; ) 676 for (signum = signalmax; signum--; )
641 if (signals [signum].gotsig) 677 if (signals [signum].gotsig)
642 ev_feed_signal_event (EV_A_ signum + 1); 678 ev_feed_signal_event (EV_A_ signum + 1);
643} 679}
644 680
645inline void 681static void
646fd_intern (int fd) 682fd_intern (int fd)
647{ 683{
648#ifdef _WIN32 684#ifdef _WIN32
649 int arg = 1; 685 int arg = 1;
650 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 686 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
698 int pid, status; 734 int pid, status;
699 735
700 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 736 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
701 { 737 {
702 /* make sure we are called again until all childs have been reaped */ 738 /* make sure we are called again until all childs have been reaped */
739 /* we need to do it this way so that the callback gets called before we continue */
703 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 740 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
704 741
705 child_reap (EV_A_ sw, pid, pid, status); 742 child_reap (EV_A_ sw, pid, pid, status);
706 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 743 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
707 } 744 }
708} 745}
709 746
710#endif 747#endif
711 748
712/*****************************************************************************/ 749/*****************************************************************************/
713 750
751#if EV_USE_PORT
752# include "ev_port.c"
753#endif
714#if EV_USE_KQUEUE 754#if EV_USE_KQUEUE
715# include "ev_kqueue.c" 755# include "ev_kqueue.c"
716#endif 756#endif
717#if EV_USE_EPOLL 757#if EV_USE_EPOLL
718# include "ev_epoll.c" 758# include "ev_epoll.c"
… …
747 || getgid () != getegid (); 787 || getgid () != getegid ();
748#endif 788#endif
749} 789}
750 790
751unsigned int 791unsigned int
752ev_method (EV_P) 792ev_supported_backends (void)
753{ 793{
754 return method; 794 unsigned int flags = 0;
795
796 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
797 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
798 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
799 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
800 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
801
802 return flags;
803}
804
805unsigned int
806ev_recommended_backends (void)
807{
808 unsigned int flags = ev_supported_backends ();
809
810#ifndef __NetBSD__
811 /* kqueue is borked on everything but netbsd apparently */
812 /* it usually doesn't work correctly on anything but sockets and pipes */
813 flags &= ~EVBACKEND_KQUEUE;
814#endif
815#ifdef __APPLE__
816 // flags &= ~EVBACKEND_KQUEUE; for documentation
817 flags &= ~EVBACKEND_POLL;
818#endif
819
820 return flags;
821}
822
823unsigned int
824ev_embeddable_backends (void)
825{
826 return EVBACKEND_EPOLL
827 | EVBACKEND_KQUEUE
828 | EVBACKEND_PORT;
829}
830
831unsigned int
832ev_backend (EV_P)
833{
834 return backend;
755} 835}
756 836
757static void 837static void
758loop_init (EV_P_ unsigned int flags) 838loop_init (EV_P_ unsigned int flags)
759{ 839{
760 if (!method) 840 if (!backend)
761 { 841 {
762#if EV_USE_MONOTONIC 842#if EV_USE_MONOTONIC
763 { 843 {
764 struct timespec ts; 844 struct timespec ts;
765 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 845 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
770 ev_rt_now = ev_time (); 850 ev_rt_now = ev_time ();
771 mn_now = get_clock (); 851 mn_now = get_clock ();
772 now_floor = mn_now; 852 now_floor = mn_now;
773 rtmn_diff = ev_rt_now - mn_now; 853 rtmn_diff = ev_rt_now - mn_now;
774 854
775 if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 855 if (!(flags & EVFLAG_NOENV)
856 && !enable_secure ()
857 && getenv ("LIBEV_FLAGS"))
776 flags = atoi (getenv ("LIBEV_FLAGS")); 858 flags = atoi (getenv ("LIBEV_FLAGS"));
777 859
778 if (!(flags & 0x0000ffff)) 860 if (!(flags & 0x0000ffffUL))
779 flags |= 0x0000ffff; 861 flags |= ev_recommended_backends ();
780 862
781 method = 0; 863 backend = 0;
864#if EV_USE_PORT
865 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
866#endif
782#if EV_USE_KQUEUE 867#if EV_USE_KQUEUE
783 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 868 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
784#endif 869#endif
785#if EV_USE_EPOLL 870#if EV_USE_EPOLL
786 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 871 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
787#endif 872#endif
788#if EV_USE_POLL 873#if EV_USE_POLL
789 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 874 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
790#endif 875#endif
791#if EV_USE_SELECT 876#if EV_USE_SELECT
792 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 877 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
793#endif 878#endif
794 879
795 ev_init (&sigev, sigcb); 880 ev_init (&sigev, sigcb);
796 ev_set_priority (&sigev, EV_MAXPRI); 881 ev_set_priority (&sigev, EV_MAXPRI);
797 } 882 }
798} 883}
799 884
800void 885static void
801loop_destroy (EV_P) 886loop_destroy (EV_P)
802{ 887{
803 int i; 888 int i;
804 889
890#if EV_USE_PORT
891 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
892#endif
805#if EV_USE_KQUEUE 893#if EV_USE_KQUEUE
806 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 894 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
807#endif 895#endif
808#if EV_USE_EPOLL 896#if EV_USE_EPOLL
809 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 897 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
810#endif 898#endif
811#if EV_USE_POLL 899#if EV_USE_POLL
812 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 900 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
813#endif 901#endif
814#if EV_USE_SELECT 902#if EV_USE_SELECT
815 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 903 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
816#endif 904#endif
817 905
818 for (i = NUMPRI; i--; ) 906 for (i = NUMPRI; i--; )
819 array_free (pending, [i]); 907 array_free (pending, [i]);
820 908
821 /* have to use the microsoft-never-gets-it-right macro */ 909 /* have to use the microsoft-never-gets-it-right macro */
822 array_free (fdchange, EMPTY); 910 array_free (fdchange, EMPTY0);
823 array_free (timer, EMPTY); 911 array_free (timer, EMPTY0);
824#if EV_PERIODICS 912#if EV_PERIODICS
825 array_free (periodic, EMPTY); 913 array_free (periodic, EMPTY0);
826#endif 914#endif
827 array_free (idle, EMPTY); 915 array_free (idle, EMPTY0);
828 array_free (prepare, EMPTY); 916 array_free (prepare, EMPTY0);
829 array_free (check, EMPTY); 917 array_free (check, EMPTY0);
830 918
831 method = 0; 919 backend = 0;
832} 920}
833 921
834static void 922static void
835loop_fork (EV_P) 923loop_fork (EV_P)
836{ 924{
925#if EV_USE_PORT
926 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
927#endif
928#if EV_USE_KQUEUE
929 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
930#endif
837#if EV_USE_EPOLL 931#if EV_USE_EPOLL
838 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 932 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
839#endif
840#if EV_USE_KQUEUE
841 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
842#endif 933#endif
843 934
844 if (ev_is_active (&sigev)) 935 if (ev_is_active (&sigev))
845 { 936 {
846 /* default loop */ 937 /* default loop */
… …
867 958
868 memset (loop, 0, sizeof (struct ev_loop)); 959 memset (loop, 0, sizeof (struct ev_loop));
869 960
870 loop_init (EV_A_ flags); 961 loop_init (EV_A_ flags);
871 962
872 if (ev_method (EV_A)) 963 if (ev_backend (EV_A))
873 return loop; 964 return loop;
874 965
875 return 0; 966 return 0;
876} 967}
877 968
… …
890 981
891#endif 982#endif
892 983
893#if EV_MULTIPLICITY 984#if EV_MULTIPLICITY
894struct ev_loop * 985struct ev_loop *
986ev_default_loop_init (unsigned int flags)
895#else 987#else
896int 988int
897#endif
898ev_default_loop (unsigned int flags) 989ev_default_loop (unsigned int flags)
990#endif
899{ 991{
900 if (sigpipe [0] == sigpipe [1]) 992 if (sigpipe [0] == sigpipe [1])
901 if (pipe (sigpipe)) 993 if (pipe (sigpipe))
902 return 0; 994 return 0;
903 995
904 if (!default_loop) 996 if (!ev_default_loop_ptr)
905 { 997 {
906#if EV_MULTIPLICITY 998#if EV_MULTIPLICITY
907 struct ev_loop *loop = default_loop = &default_loop_struct; 999 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
908#else 1000#else
909 default_loop = 1; 1001 ev_default_loop_ptr = 1;
910#endif 1002#endif
911 1003
912 loop_init (EV_A_ flags); 1004 loop_init (EV_A_ flags);
913 1005
914 if (ev_method (EV_A)) 1006 if (ev_backend (EV_A))
915 { 1007 {
916 siginit (EV_A); 1008 siginit (EV_A);
917 1009
918#ifndef _WIN32 1010#ifndef _WIN32
919 ev_signal_init (&childev, childcb, SIGCHLD); 1011 ev_signal_init (&childev, childcb, SIGCHLD);
… …
921 ev_signal_start (EV_A_ &childev); 1013 ev_signal_start (EV_A_ &childev);
922 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1014 ev_unref (EV_A); /* child watcher should not keep loop alive */
923#endif 1015#endif
924 } 1016 }
925 else 1017 else
926 default_loop = 0; 1018 ev_default_loop_ptr = 0;
927 } 1019 }
928 1020
929 return default_loop; 1021 return ev_default_loop_ptr;
930} 1022}
931 1023
932void 1024void
933ev_default_destroy (void) 1025ev_default_destroy (void)
934{ 1026{
935#if EV_MULTIPLICITY 1027#if EV_MULTIPLICITY
936 struct ev_loop *loop = default_loop; 1028 struct ev_loop *loop = ev_default_loop_ptr;
937#endif 1029#endif
938 1030
939#ifndef _WIN32 1031#ifndef _WIN32
940 ev_ref (EV_A); /* child watcher */ 1032 ev_ref (EV_A); /* child watcher */
941 ev_signal_stop (EV_A_ &childev); 1033 ev_signal_stop (EV_A_ &childev);
… …
952 1044
953void 1045void
954ev_default_fork (void) 1046ev_default_fork (void)
955{ 1047{
956#if EV_MULTIPLICITY 1048#if EV_MULTIPLICITY
957 struct ev_loop *loop = default_loop; 1049 struct ev_loop *loop = ev_default_loop_ptr;
958#endif 1050#endif
959 1051
960 if (method) 1052 if (backend)
961 postfork = 1; 1053 postfork = 1;
962} 1054}
963 1055
964/*****************************************************************************/ 1056/*****************************************************************************/
965 1057
… …
973 return 1; 1065 return 1;
974 1066
975 return 0; 1067 return 0;
976} 1068}
977 1069
978static void 1070inline void
979call_pending (EV_P) 1071call_pending (EV_P)
980{ 1072{
981 int pri; 1073 int pri;
982 1074
983 for (pri = NUMPRI; pri--; ) 1075 for (pri = NUMPRI; pri--; )
984 while (pendingcnt [pri]) 1076 while (pendingcnt [pri])
985 { 1077 {
986 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1078 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
987 1079
988 if (p->w) 1080 if (expect_true (p->w))
989 { 1081 {
990 p->w->pending = 0; 1082 p->w->pending = 0;
991 EV_CB_INVOKE (p->w, p->events); 1083 EV_CB_INVOKE (p->w, p->events);
992 } 1084 }
993 } 1085 }
994} 1086}
995 1087
996static void 1088inline void
997timers_reify (EV_P) 1089timers_reify (EV_P)
998{ 1090{
999 while (timercnt && ((WT)timers [0])->at <= mn_now) 1091 while (timercnt && ((WT)timers [0])->at <= mn_now)
1000 { 1092 {
1001 struct ev_timer *w = timers [0]; 1093 struct ev_timer *w = timers [0];
… …
1019 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1111 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1020 } 1112 }
1021} 1113}
1022 1114
1023#if EV_PERIODICS 1115#if EV_PERIODICS
1024static void 1116inline void
1025periodics_reify (EV_P) 1117periodics_reify (EV_P)
1026{ 1118{
1027 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1119 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1028 { 1120 {
1029 struct ev_periodic *w = periodics [0]; 1121 struct ev_periodic *w = periodics [0];
… …
1088 ev_rt_now = ev_time (); 1180 ev_rt_now = ev_time ();
1089 return 1; 1181 return 1;
1090 } 1182 }
1091} 1183}
1092 1184
1093static void 1185inline void
1094time_update (EV_P) 1186time_update (EV_P)
1095{ 1187{
1096 int i; 1188 int i;
1097 1189
1098#if EV_USE_MONOTONIC 1190#if EV_USE_MONOTONIC
… …
1159ev_loop (EV_P_ int flags) 1251ev_loop (EV_P_ int flags)
1160{ 1252{
1161 double block; 1253 double block;
1162 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1254 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
1163 1255
1164 do 1256 while (activecnt)
1165 { 1257 {
1166 /* queue check watchers (and execute them) */ 1258 /* queue check watchers (and execute them) */
1167 if (expect_false (preparecnt)) 1259 if (expect_false (preparecnt))
1168 { 1260 {
1169 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1261 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
… …
1197 { 1289 {
1198 block = MAX_BLOCKTIME; 1290 block = MAX_BLOCKTIME;
1199 1291
1200 if (timercnt) 1292 if (timercnt)
1201 { 1293 {
1202 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1294 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1203 if (block > to) block = to; 1295 if (block > to) block = to;
1204 } 1296 }
1205 1297
1206#if EV_PERIODICS 1298#if EV_PERIODICS
1207 if (periodiccnt) 1299 if (periodiccnt)
1208 { 1300 {
1209 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1301 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1210 if (block > to) block = to; 1302 if (block > to) block = to;
1211 } 1303 }
1212#endif 1304#endif
1213 1305
1214 if (block < 0.) block = 0.; 1306 if (expect_false (block < 0.)) block = 0.;
1215 } 1307 }
1216 1308
1217 method_poll (EV_A_ block); 1309 backend_poll (EV_A_ block);
1218 1310
1219 /* update ev_rt_now, do magic */ 1311 /* update ev_rt_now, do magic */
1220 time_update (EV_A); 1312 time_update (EV_A);
1221 1313
1222 /* queue pending timers and reschedule them */ 1314 /* queue pending timers and reschedule them */
… …
1228 /* queue idle watchers unless io or timers are pending */ 1320 /* queue idle watchers unless io or timers are pending */
1229 if (idlecnt && !any_pending (EV_A)) 1321 if (idlecnt && !any_pending (EV_A))
1230 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1322 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1231 1323
1232 /* queue check watchers, to be executed first */ 1324 /* queue check watchers, to be executed first */
1233 if (checkcnt) 1325 if (expect_false (checkcnt))
1234 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1326 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1235 1327
1236 call_pending (EV_A); 1328 call_pending (EV_A);
1329
1330 if (expect_false (loop_done))
1331 break;
1237 } 1332 }
1238 while (activecnt && !loop_done);
1239 1333
1240 if (loop_done != 2) 1334 if (loop_done != 2)
1241 loop_done = 0; 1335 loop_done = 0;
1242} 1336}
1243 1337
… …
1303void 1397void
1304ev_io_start (EV_P_ struct ev_io *w) 1398ev_io_start (EV_P_ struct ev_io *w)
1305{ 1399{
1306 int fd = w->fd; 1400 int fd = w->fd;
1307 1401
1308 if (ev_is_active (w)) 1402 if (expect_false (ev_is_active (w)))
1309 return; 1403 return;
1310 1404
1311 assert (("ev_io_start called with negative fd", fd >= 0)); 1405 assert (("ev_io_start called with negative fd", fd >= 0));
1312 1406
1313 ev_start (EV_A_ (W)w, 1); 1407 ev_start (EV_A_ (W)w, 1);
… …
1319 1413
1320void 1414void
1321ev_io_stop (EV_P_ struct ev_io *w) 1415ev_io_stop (EV_P_ struct ev_io *w)
1322{ 1416{
1323 ev_clear_pending (EV_A_ (W)w); 1417 ev_clear_pending (EV_A_ (W)w);
1324 if (!ev_is_active (w)) 1418 if (expect_false (!ev_is_active (w)))
1325 return; 1419 return;
1326 1420
1327 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1421 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1328 1422
1329 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1423 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
… …
1333} 1427}
1334 1428
1335void 1429void
1336ev_timer_start (EV_P_ struct ev_timer *w) 1430ev_timer_start (EV_P_ struct ev_timer *w)
1337{ 1431{
1338 if (ev_is_active (w)) 1432 if (expect_false (ev_is_active (w)))
1339 return; 1433 return;
1340 1434
1341 ((WT)w)->at += mn_now; 1435 ((WT)w)->at += mn_now;
1342 1436
1343 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1437 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1344 1438
1345 ev_start (EV_A_ (W)w, ++timercnt); 1439 ev_start (EV_A_ (W)w, ++timercnt);
1346 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1440 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1347 timers [timercnt - 1] = w; 1441 timers [timercnt - 1] = w;
1348 upheap ((WT *)timers, timercnt - 1); 1442 upheap ((WT *)timers, timercnt - 1);
1349 1443
1350 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1444 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1351} 1445}
1352 1446
1353void 1447void
1354ev_timer_stop (EV_P_ struct ev_timer *w) 1448ev_timer_stop (EV_P_ struct ev_timer *w)
1355{ 1449{
1356 ev_clear_pending (EV_A_ (W)w); 1450 ev_clear_pending (EV_A_ (W)w);
1357 if (!ev_is_active (w)) 1451 if (expect_false (!ev_is_active (w)))
1358 return; 1452 return;
1359 1453
1360 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1454 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1361 1455
1362 if (((W)w)->active < timercnt--) 1456 if (expect_true (((W)w)->active < timercnt--))
1363 { 1457 {
1364 timers [((W)w)->active - 1] = timers [timercnt]; 1458 timers [((W)w)->active - 1] = timers [timercnt];
1365 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1459 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1366 } 1460 }
1367 1461
… …
1392 1486
1393#if EV_PERIODICS 1487#if EV_PERIODICS
1394void 1488void
1395ev_periodic_start (EV_P_ struct ev_periodic *w) 1489ev_periodic_start (EV_P_ struct ev_periodic *w)
1396{ 1490{
1397 if (ev_is_active (w)) 1491 if (expect_false (ev_is_active (w)))
1398 return; 1492 return;
1399 1493
1400 if (w->reschedule_cb) 1494 if (w->reschedule_cb)
1401 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1495 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1402 else if (w->interval) 1496 else if (w->interval)
… …
1405 /* this formula differs from the one in periodic_reify because we do not always round up */ 1499 /* this formula differs from the one in periodic_reify because we do not always round up */
1406 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1500 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1407 } 1501 }
1408 1502
1409 ev_start (EV_A_ (W)w, ++periodiccnt); 1503 ev_start (EV_A_ (W)w, ++periodiccnt);
1410 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1504 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1411 periodics [periodiccnt - 1] = w; 1505 periodics [periodiccnt - 1] = w;
1412 upheap ((WT *)periodics, periodiccnt - 1); 1506 upheap ((WT *)periodics, periodiccnt - 1);
1413 1507
1414 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1508 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1415} 1509}
1416 1510
1417void 1511void
1418ev_periodic_stop (EV_P_ struct ev_periodic *w) 1512ev_periodic_stop (EV_P_ struct ev_periodic *w)
1419{ 1513{
1420 ev_clear_pending (EV_A_ (W)w); 1514 ev_clear_pending (EV_A_ (W)w);
1421 if (!ev_is_active (w)) 1515 if (expect_false (!ev_is_active (w)))
1422 return; 1516 return;
1423 1517
1424 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1518 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1425 1519
1426 if (((W)w)->active < periodiccnt--) 1520 if (expect_true (((W)w)->active < periodiccnt--))
1427 { 1521 {
1428 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1522 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1429 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1523 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1430 } 1524 }
1431 1525
… …
1442#endif 1536#endif
1443 1537
1444void 1538void
1445ev_idle_start (EV_P_ struct ev_idle *w) 1539ev_idle_start (EV_P_ struct ev_idle *w)
1446{ 1540{
1447 if (ev_is_active (w)) 1541 if (expect_false (ev_is_active (w)))
1448 return; 1542 return;
1449 1543
1450 ev_start (EV_A_ (W)w, ++idlecnt); 1544 ev_start (EV_A_ (W)w, ++idlecnt);
1451 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); 1545 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1452 idles [idlecnt - 1] = w; 1546 idles [idlecnt - 1] = w;
1453} 1547}
1454 1548
1455void 1549void
1456ev_idle_stop (EV_P_ struct ev_idle *w) 1550ev_idle_stop (EV_P_ struct ev_idle *w)
1457{ 1551{
1458 ev_clear_pending (EV_A_ (W)w); 1552 ev_clear_pending (EV_A_ (W)w);
1459 if (!ev_is_active (w)) 1553 if (expect_false (!ev_is_active (w)))
1460 return; 1554 return;
1461 1555
1462 idles [((W)w)->active - 1] = idles [--idlecnt]; 1556 idles [((W)w)->active - 1] = idles [--idlecnt];
1463 ev_stop (EV_A_ (W)w); 1557 ev_stop (EV_A_ (W)w);
1464} 1558}
1465 1559
1466void 1560void
1467ev_prepare_start (EV_P_ struct ev_prepare *w) 1561ev_prepare_start (EV_P_ struct ev_prepare *w)
1468{ 1562{
1469 if (ev_is_active (w)) 1563 if (expect_false (ev_is_active (w)))
1470 return; 1564 return;
1471 1565
1472 ev_start (EV_A_ (W)w, ++preparecnt); 1566 ev_start (EV_A_ (W)w, ++preparecnt);
1473 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); 1567 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1474 prepares [preparecnt - 1] = w; 1568 prepares [preparecnt - 1] = w;
1475} 1569}
1476 1570
1477void 1571void
1478ev_prepare_stop (EV_P_ struct ev_prepare *w) 1572ev_prepare_stop (EV_P_ struct ev_prepare *w)
1479{ 1573{
1480 ev_clear_pending (EV_A_ (W)w); 1574 ev_clear_pending (EV_A_ (W)w);
1481 if (!ev_is_active (w)) 1575 if (expect_false (!ev_is_active (w)))
1482 return; 1576 return;
1483 1577
1484 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1578 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1485 ev_stop (EV_A_ (W)w); 1579 ev_stop (EV_A_ (W)w);
1486} 1580}
1487 1581
1488void 1582void
1489ev_check_start (EV_P_ struct ev_check *w) 1583ev_check_start (EV_P_ struct ev_check *w)
1490{ 1584{
1491 if (ev_is_active (w)) 1585 if (expect_false (ev_is_active (w)))
1492 return; 1586 return;
1493 1587
1494 ev_start (EV_A_ (W)w, ++checkcnt); 1588 ev_start (EV_A_ (W)w, ++checkcnt);
1495 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); 1589 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1496 checks [checkcnt - 1] = w; 1590 checks [checkcnt - 1] = w;
1497} 1591}
1498 1592
1499void 1593void
1500ev_check_stop (EV_P_ struct ev_check *w) 1594ev_check_stop (EV_P_ struct ev_check *w)
1501{ 1595{
1502 ev_clear_pending (EV_A_ (W)w); 1596 ev_clear_pending (EV_A_ (W)w);
1503 if (!ev_is_active (w)) 1597 if (expect_false (!ev_is_active (w)))
1504 return; 1598 return;
1505 1599
1506 checks [((W)w)->active - 1] = checks [--checkcnt]; 1600 checks [((W)w)->active - 1] = checks [--checkcnt];
1507 ev_stop (EV_A_ (W)w); 1601 ev_stop (EV_A_ (W)w);
1508} 1602}
… …
1513 1607
1514void 1608void
1515ev_signal_start (EV_P_ struct ev_signal *w) 1609ev_signal_start (EV_P_ struct ev_signal *w)
1516{ 1610{
1517#if EV_MULTIPLICITY 1611#if EV_MULTIPLICITY
1518 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1612 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1519#endif 1613#endif
1520 if (ev_is_active (w)) 1614 if (expect_false (ev_is_active (w)))
1521 return; 1615 return;
1522 1616
1523 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1617 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1524 1618
1525 ev_start (EV_A_ (W)w, 1); 1619 ev_start (EV_A_ (W)w, 1);
… …
1542 1636
1543void 1637void
1544ev_signal_stop (EV_P_ struct ev_signal *w) 1638ev_signal_stop (EV_P_ struct ev_signal *w)
1545{ 1639{
1546 ev_clear_pending (EV_A_ (W)w); 1640 ev_clear_pending (EV_A_ (W)w);
1547 if (!ev_is_active (w)) 1641 if (expect_false (!ev_is_active (w)))
1548 return; 1642 return;
1549 1643
1550 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1644 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1551 ev_stop (EV_A_ (W)w); 1645 ev_stop (EV_A_ (W)w);
1552 1646
… …
1556 1650
1557void 1651void
1558ev_child_start (EV_P_ struct ev_child *w) 1652ev_child_start (EV_P_ struct ev_child *w)
1559{ 1653{
1560#if EV_MULTIPLICITY 1654#if EV_MULTIPLICITY
1561 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1655 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1562#endif 1656#endif
1563 if (ev_is_active (w)) 1657 if (expect_false (ev_is_active (w)))
1564 return; 1658 return;
1565 1659
1566 ev_start (EV_A_ (W)w, 1); 1660 ev_start (EV_A_ (W)w, 1);
1567 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1661 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1568} 1662}
1569 1663
1570void 1664void
1571ev_child_stop (EV_P_ struct ev_child *w) 1665ev_child_stop (EV_P_ struct ev_child *w)
1572{ 1666{
1573 ev_clear_pending (EV_A_ (W)w); 1667 ev_clear_pending (EV_A_ (W)w);
1574 if (!ev_is_active (w)) 1668 if (expect_false (!ev_is_active (w)))
1575 return; 1669 return;
1576 1670
1577 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1671 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1578 ev_stop (EV_A_ (W)w); 1672 ev_stop (EV_A_ (W)w);
1579} 1673}
1674
1675#if EV_MULTIPLICITY
1676static void
1677embed_cb (EV_P_ struct ev_io *io, int revents)
1678{
1679 struct ev_embed *w = (struct ev_embed *)(((char *)io) - offsetof (struct ev_embed, io));
1680
1681 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1682 ev_loop (w->loop, EVLOOP_NONBLOCK);
1683}
1684
1685void
1686ev_embed_start (EV_P_ struct ev_embed *w)
1687{
1688 if (expect_false (ev_is_active (w)))
1689 return;
1690
1691 {
1692 struct ev_loop *loop = w->loop;
1693 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1694 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1695 }
1696
1697 ev_io_start (EV_A_ &w->io);
1698 ev_start (EV_A_ (W)w, 1);
1699}
1700
1701void
1702ev_embed_stop (EV_P_ struct ev_embed *w)
1703{
1704 ev_clear_pending (EV_A_ (W)w);
1705 if (expect_false (!ev_is_active (w)))
1706 return;
1707
1708 ev_io_stop (EV_A_ &w->io);
1709 ev_stop (EV_A_ (W)w);
1710}
1711#endif
1580 1712
1581/*****************************************************************************/ 1713/*****************************************************************************/
1582 1714
1583struct ev_once 1715struct ev_once
1584{ 1716{
… …
1616void 1748void
1617ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1749ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1618{ 1750{
1619 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 1751 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1620 1752
1621 if (!once) 1753 if (expect_false (!once))
1754 {
1622 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1755 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1623 else 1756 return;
1624 { 1757 }
1758
1625 once->cb = cb; 1759 once->cb = cb;
1626 once->arg = arg; 1760 once->arg = arg;
1627 1761
1628 ev_init (&once->io, once_cb_io); 1762 ev_init (&once->io, once_cb_io);
1629 if (fd >= 0) 1763 if (fd >= 0)
1630 { 1764 {
1631 ev_io_set (&once->io, fd, events); 1765 ev_io_set (&once->io, fd, events);
1632 ev_io_start (EV_A_ &once->io); 1766 ev_io_start (EV_A_ &once->io);
1633 } 1767 }
1634 1768
1635 ev_init (&once->to, once_cb_to); 1769 ev_init (&once->to, once_cb_to);
1636 if (timeout >= 0.) 1770 if (timeout >= 0.)
1637 { 1771 {
1638 ev_timer_set (&once->to, timeout, 0.); 1772 ev_timer_set (&once->to, timeout, 0.);
1639 ev_timer_start (EV_A_ &once->to); 1773 ev_timer_start (EV_A_ &once->to);
1640 }
1641 } 1774 }
1642} 1775}
1643 1776
1644#ifdef __cplusplus 1777#ifdef __cplusplus
1645} 1778}

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