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Comparing libev/ev.c (file contents):
Revision 1.104 by root, Mon Nov 12 00:39:45 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 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/**/
124 162
125#ifndef CLOCK_MONOTONIC 163#ifndef CLOCK_MONOTONIC
… …
137#endif 175#endif
138 176
139/**/ 177/**/
140 178
141#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) */
142#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) */
143#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 */
144/*#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 */
145 183
146#ifdef EV_H 184#ifdef EV_H
147# include EV_H 185# include EV_H
148#else 186#else
149# include "ev.h" 187# include "ev.h"
150#endif 188#endif
151 189
152#if __GNUC__ >= 3 190#if __GNUC__ >= 3
153# define expect(expr,value) __builtin_expect ((expr),(value)) 191# define expect(expr,value) __builtin_expect ((expr),(value))
154# define inline inline 192# define inline static inline
155#else 193#else
156# define expect(expr,value) (expr) 194# define expect(expr,value) (expr)
157# define inline static 195# define inline static
158#endif 196#endif
159 197
… …
161#define expect_true(expr) expect ((expr) != 0, 1) 199#define expect_true(expr) expect ((expr) != 0, 1)
162 200
163#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 201#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
164#define ABSPRI(w) ((w)->priority - EV_MINPRI) 202#define ABSPRI(w) ((w)->priority - EV_MINPRI)
165 203
166#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 */
167 206
168typedef struct ev_watcher *W; 207typedef struct ev_watcher *W;
169typedef struct ev_watcher_list *WL; 208typedef struct ev_watcher_list *WL;
170typedef struct ev_watcher_time *WT; 209typedef struct ev_watcher_time *WT;
171 210
… …
251 #include "ev_vars.h" 290 #include "ev_vars.h"
252 #undef VAR 291 #undef VAR
253 }; 292 };
254 #include "ev_wrap.h" 293 #include "ev_wrap.h"
255 294
256 struct ev_loop default_loop_struct; 295 static struct ev_loop default_loop_struct;
257 static struct ev_loop *default_loop; 296 struct ev_loop *ev_default_loop_ptr;
258 297
259#else 298#else
260 299
261 ev_tstamp ev_rt_now; 300 ev_tstamp ev_rt_now;
262 #define VAR(name,decl) static decl; 301 #define VAR(name,decl) static decl;
263 #include "ev_vars.h" 302 #include "ev_vars.h"
264 #undef VAR 303 #undef VAR
265 304
266 static int default_loop; 305 static int ev_default_loop_ptr;
267 306
268#endif 307#endif
269 308
270/*****************************************************************************/ 309/*****************************************************************************/
271 310
… …
304{ 343{
305 return ev_rt_now; 344 return ev_rt_now;
306} 345}
307#endif 346#endif
308 347
309#define array_roundsize(type,n) ((n) | 4 & ~3) 348#define array_roundsize(type,n) (((n) | 4) & ~3)
310 349
311#define array_needsize(type,base,cur,cnt,init) \ 350#define array_needsize(type,base,cur,cnt,init) \
312 if (expect_false ((cnt) > cur)) \ 351 if (expect_false ((cnt) > cur)) \
313 { \ 352 { \
314 int newcnt = cur; \ 353 int newcnt = cur; \
… …
352void 391void
353ev_feed_event (EV_P_ void *w, int revents) 392ev_feed_event (EV_P_ void *w, int revents)
354{ 393{
355 W w_ = (W)w; 394 W w_ = (W)w;
356 395
357 if (w_->pending) 396 if (expect_false (w_->pending))
358 { 397 {
359 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 398 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
360 return; 399 return;
361 } 400 }
362 401
402 if (expect_false (!w_->cb))
403 return;
404
363 w_->pending = ++pendingcnt [ABSPRI (w_)]; 405 w_->pending = ++pendingcnt [ABSPRI (w_)];
364 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);
365 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 407 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
366 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 408 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
367} 409}
368 410
369static void 411static void
… …
396 fd_event (EV_A_ fd, revents); 438 fd_event (EV_A_ fd, revents);
397} 439}
398 440
399/*****************************************************************************/ 441/*****************************************************************************/
400 442
401static void 443inline void
402fd_reify (EV_P) 444fd_reify (EV_P)
403{ 445{
404 int i; 446 int i;
405 447
406 for (i = 0; i < fdchangecnt; ++i) 448 for (i = 0; i < fdchangecnt; ++i)
… …
423 } 465 }
424#endif 466#endif
425 467
426 anfd->reify = 0; 468 anfd->reify = 0;
427 469
428 method_modify (EV_A_ fd, anfd->events, events); 470 backend_modify (EV_A_ fd, anfd->events, events);
429 anfd->events = events; 471 anfd->events = events;
430 } 472 }
431 473
432 fdchangecnt = 0; 474 fdchangecnt = 0;
433} 475}
434 476
435static void 477static void
436fd_change (EV_P_ int fd) 478fd_change (EV_P_ int fd)
437{ 479{
438 if (anfds [fd].reify) 480 if (expect_false (anfds [fd].reify))
439 return; 481 return;
440 482
441 anfds [fd].reify = 1; 483 anfds [fd].reify = 1;
442 484
443 ++fdchangecnt; 485 ++fdchangecnt;
444 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 486 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
445 fdchanges [fdchangecnt - 1] = fd; 487 fdchanges [fdchangecnt - 1] = fd;
446} 488}
447 489
448static void 490static void
449fd_kill (EV_P_ int fd) 491fd_kill (EV_P_ int fd)
… …
455 ev_io_stop (EV_A_ w); 497 ev_io_stop (EV_A_ w);
456 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);
457 } 499 }
458} 500}
459 501
460static int 502inline int
461fd_valid (int fd) 503fd_valid (int fd)
462{ 504{
463#ifdef _WIN32 505#ifdef _WIN32
464 return _get_osfhandle (fd) != -1; 506 return _get_osfhandle (fd) != -1;
465#else 507#else
… …
491 fd_kill (EV_A_ fd); 533 fd_kill (EV_A_ fd);
492 return; 534 return;
493 } 535 }
494} 536}
495 537
496/* 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 */
497static void 539static void
498fd_rearm_all (EV_P) 540fd_rearm_all (EV_P)
499{ 541{
500 int fd; 542 int fd;
501 543
… …
607ev_feed_signal_event (EV_P_ int signum) 649ev_feed_signal_event (EV_P_ int signum)
608{ 650{
609 WL w; 651 WL w;
610 652
611#if EV_MULTIPLICITY 653#if EV_MULTIPLICITY
612 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));
613#endif 655#endif
614 656
615 --signum; 657 --signum;
616 658
617 if (signum < 0 || signum >= signalmax) 659 if (signum < 0 || signum >= signalmax)
… …
634 for (signum = signalmax; signum--; ) 676 for (signum = signalmax; signum--; )
635 if (signals [signum].gotsig) 677 if (signals [signum].gotsig)
636 ev_feed_signal_event (EV_A_ signum + 1); 678 ev_feed_signal_event (EV_A_ signum + 1);
637} 679}
638 680
639inline void 681static void
640fd_intern (int fd) 682fd_intern (int fd)
641{ 683{
642#ifdef _WIN32 684#ifdef _WIN32
643 int arg = 1; 685 int arg = 1;
644 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 686 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
692 int pid, status; 734 int pid, status;
693 735
694 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 736 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
695 { 737 {
696 /* 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 */
697 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 740 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
698 741
699 child_reap (EV_A_ sw, pid, pid, status); 742 child_reap (EV_A_ sw, pid, pid, status);
700 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 */
701 } 744 }
702} 745}
703 746
704#endif 747#endif
705 748
706/*****************************************************************************/ 749/*****************************************************************************/
707 750
751#if EV_USE_PORT
752# include "ev_port.c"
753#endif
708#if EV_USE_KQUEUE 754#if EV_USE_KQUEUE
709# include "ev_kqueue.c" 755# include "ev_kqueue.c"
710#endif 756#endif
711#if EV_USE_EPOLL 757#if EV_USE_EPOLL
712# include "ev_epoll.c" 758# include "ev_epoll.c"
… …
740 return getuid () != geteuid () 786 return getuid () != geteuid ()
741 || getgid () != getegid (); 787 || getgid () != getegid ();
742#endif 788#endif
743} 789}
744 790
745int 791unsigned int
746ev_method (EV_P) 792ev_supported_backends (void)
747{ 793{
748 return method; 794 unsigned int flags = 0;
749}
750 795
751static void 796 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
752loop_init (EV_P_ int methods) 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)
753{ 807{
754 if (!method) 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;
835}
836
837static void
838loop_init (EV_P_ unsigned int flags)
839{
840 if (!backend)
755 { 841 {
756#if EV_USE_MONOTONIC 842#if EV_USE_MONOTONIC
757 { 843 {
758 struct timespec ts; 844 struct timespec ts;
759 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 845 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
764 ev_rt_now = ev_time (); 850 ev_rt_now = ev_time ();
765 mn_now = get_clock (); 851 mn_now = get_clock ();
766 now_floor = mn_now; 852 now_floor = mn_now;
767 rtmn_diff = ev_rt_now - mn_now; 853 rtmn_diff = ev_rt_now - mn_now;
768 854
769 if (methods == EVMETHOD_AUTO) 855 if (!(flags & EVFLAG_NOENV)
770 if (!enable_secure () && getenv ("LIBEV_METHODS")) 856 && !enable_secure ()
857 && getenv ("LIBEV_FLAGS"))
771 methods = atoi (getenv ("LIBEV_METHODS")); 858 flags = atoi (getenv ("LIBEV_FLAGS"));
772 else
773 methods = EVMETHOD_ANY;
774 859
775 method = 0; 860 if (!(flags & 0x0000ffffUL))
861 flags |= ev_recommended_backends ();
862
863 backend = 0;
864#if EV_USE_PORT
865 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
866#endif
776#if EV_USE_KQUEUE 867#if EV_USE_KQUEUE
777 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 868 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
778#endif 869#endif
779#if EV_USE_EPOLL 870#if EV_USE_EPOLL
780 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 871 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
781#endif 872#endif
782#if EV_USE_POLL 873#if EV_USE_POLL
783 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 874 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
784#endif 875#endif
785#if EV_USE_SELECT 876#if EV_USE_SELECT
786 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 877 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
787#endif 878#endif
788 879
789 ev_init (&sigev, sigcb); 880 ev_init (&sigev, sigcb);
790 ev_set_priority (&sigev, EV_MAXPRI); 881 ev_set_priority (&sigev, EV_MAXPRI);
791 } 882 }
792} 883}
793 884
794void 885static void
795loop_destroy (EV_P) 886loop_destroy (EV_P)
796{ 887{
797 int i; 888 int i;
798 889
890#if EV_USE_PORT
891 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
892#endif
799#if EV_USE_KQUEUE 893#if EV_USE_KQUEUE
800 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 894 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
801#endif 895#endif
802#if EV_USE_EPOLL 896#if EV_USE_EPOLL
803 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 897 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
804#endif 898#endif
805#if EV_USE_POLL 899#if EV_USE_POLL
806 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 900 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
807#endif 901#endif
808#if EV_USE_SELECT 902#if EV_USE_SELECT
809 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 903 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
810#endif 904#endif
811 905
812 for (i = NUMPRI; i--; ) 906 for (i = NUMPRI; i--; )
813 array_free (pending, [i]); 907 array_free (pending, [i]);
814 908
815 /* have to use the microsoft-never-gets-it-right macro */ 909 /* have to use the microsoft-never-gets-it-right macro */
816 array_free (fdchange, EMPTY); 910 array_free (fdchange, EMPTY0);
817 array_free (timer, EMPTY); 911 array_free (timer, EMPTY0);
818#if EV_PERIODICS 912#if EV_PERIODICS
819 array_free (periodic, EMPTY); 913 array_free (periodic, EMPTY0);
820#endif 914#endif
821 array_free (idle, EMPTY); 915 array_free (idle, EMPTY0);
822 array_free (prepare, EMPTY); 916 array_free (prepare, EMPTY0);
823 array_free (check, EMPTY); 917 array_free (check, EMPTY0);
824 918
825 method = 0; 919 backend = 0;
826} 920}
827 921
828static void 922static void
829loop_fork (EV_P) 923loop_fork (EV_P)
830{ 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
831#if EV_USE_EPOLL 931#if EV_USE_EPOLL
832 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 932 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
833#endif
834#if EV_USE_KQUEUE
835 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
836#endif 933#endif
837 934
838 if (ev_is_active (&sigev)) 935 if (ev_is_active (&sigev))
839 { 936 {
840 /* default loop */ 937 /* default loop */
… …
853 postfork = 0; 950 postfork = 0;
854} 951}
855 952
856#if EV_MULTIPLICITY 953#if EV_MULTIPLICITY
857struct ev_loop * 954struct ev_loop *
858ev_loop_new (int methods) 955ev_loop_new (unsigned int flags)
859{ 956{
860 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 957 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
861 958
862 memset (loop, 0, sizeof (struct ev_loop)); 959 memset (loop, 0, sizeof (struct ev_loop));
863 960
864 loop_init (EV_A_ methods); 961 loop_init (EV_A_ flags);
865 962
866 if (ev_method (EV_A)) 963 if (ev_backend (EV_A))
867 return loop; 964 return loop;
868 965
869 return 0; 966 return 0;
870} 967}
871 968
… …
884 981
885#endif 982#endif
886 983
887#if EV_MULTIPLICITY 984#if EV_MULTIPLICITY
888struct ev_loop * 985struct ev_loop *
986ev_default_loop_init (unsigned int flags)
889#else 987#else
890int 988int
989ev_default_loop (unsigned int flags)
891#endif 990#endif
892ev_default_loop (int methods)
893{ 991{
894 if (sigpipe [0] == sigpipe [1]) 992 if (sigpipe [0] == sigpipe [1])
895 if (pipe (sigpipe)) 993 if (pipe (sigpipe))
896 return 0; 994 return 0;
897 995
898 if (!default_loop) 996 if (!ev_default_loop_ptr)
899 { 997 {
900#if EV_MULTIPLICITY 998#if EV_MULTIPLICITY
901 struct ev_loop *loop = default_loop = &default_loop_struct; 999 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
902#else 1000#else
903 default_loop = 1; 1001 ev_default_loop_ptr = 1;
904#endif 1002#endif
905 1003
906 loop_init (EV_A_ methods); 1004 loop_init (EV_A_ flags);
907 1005
908 if (ev_method (EV_A)) 1006 if (ev_backend (EV_A))
909 { 1007 {
910 siginit (EV_A); 1008 siginit (EV_A);
911 1009
912#ifndef _WIN32 1010#ifndef _WIN32
913 ev_signal_init (&childev, childcb, SIGCHLD); 1011 ev_signal_init (&childev, childcb, SIGCHLD);
… …
915 ev_signal_start (EV_A_ &childev); 1013 ev_signal_start (EV_A_ &childev);
916 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1014 ev_unref (EV_A); /* child watcher should not keep loop alive */
917#endif 1015#endif
918 } 1016 }
919 else 1017 else
920 default_loop = 0; 1018 ev_default_loop_ptr = 0;
921 } 1019 }
922 1020
923 return default_loop; 1021 return ev_default_loop_ptr;
924} 1022}
925 1023
926void 1024void
927ev_default_destroy (void) 1025ev_default_destroy (void)
928{ 1026{
929#if EV_MULTIPLICITY 1027#if EV_MULTIPLICITY
930 struct ev_loop *loop = default_loop; 1028 struct ev_loop *loop = ev_default_loop_ptr;
931#endif 1029#endif
932 1030
933#ifndef _WIN32 1031#ifndef _WIN32
934 ev_ref (EV_A); /* child watcher */ 1032 ev_ref (EV_A); /* child watcher */
935 ev_signal_stop (EV_A_ &childev); 1033 ev_signal_stop (EV_A_ &childev);
… …
946 1044
947void 1045void
948ev_default_fork (void) 1046ev_default_fork (void)
949{ 1047{
950#if EV_MULTIPLICITY 1048#if EV_MULTIPLICITY
951 struct ev_loop *loop = default_loop; 1049 struct ev_loop *loop = ev_default_loop_ptr;
952#endif 1050#endif
953 1051
954 if (method) 1052 if (backend)
955 postfork = 1; 1053 postfork = 1;
956} 1054}
957 1055
958/*****************************************************************************/ 1056/*****************************************************************************/
959 1057
… …
967 return 1; 1065 return 1;
968 1066
969 return 0; 1067 return 0;
970} 1068}
971 1069
972static void 1070inline void
973call_pending (EV_P) 1071call_pending (EV_P)
974{ 1072{
975 int pri; 1073 int pri;
976 1074
977 for (pri = NUMPRI; pri--; ) 1075 for (pri = NUMPRI; pri--; )
978 while (pendingcnt [pri]) 1076 while (pendingcnt [pri])
979 { 1077 {
980 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1078 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
981 1079
982 if (p->w) 1080 if (expect_true (p->w))
983 { 1081 {
984 p->w->pending = 0; 1082 p->w->pending = 0;
985 EV_CB_INVOKE (p->w, p->events); 1083 EV_CB_INVOKE (p->w, p->events);
986 } 1084 }
987 } 1085 }
988} 1086}
989 1087
990static void 1088inline void
991timers_reify (EV_P) 1089timers_reify (EV_P)
992{ 1090{
993 while (timercnt && ((WT)timers [0])->at <= mn_now) 1091 while (timercnt && ((WT)timers [0])->at <= mn_now)
994 { 1092 {
995 struct ev_timer *w = timers [0]; 1093 struct ev_timer *w = timers [0];
… …
1013 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1111 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1014 } 1112 }
1015} 1113}
1016 1114
1017#if EV_PERIODICS 1115#if EV_PERIODICS
1018static void 1116inline void
1019periodics_reify (EV_P) 1117periodics_reify (EV_P)
1020{ 1118{
1021 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1119 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1022 { 1120 {
1023 struct ev_periodic *w = periodics [0]; 1121 struct ev_periodic *w = periodics [0];
… …
1025 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1123 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1026 1124
1027 /* first reschedule or stop timer */ 1125 /* first reschedule or stop timer */
1028 if (w->reschedule_cb) 1126 if (w->reschedule_cb)
1029 { 1127 {
1030 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1128 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1031
1032 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1129 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1033 downheap ((WT *)periodics, periodiccnt, 0); 1130 downheap ((WT *)periodics, periodiccnt, 0);
1034 } 1131 }
1035 else if (w->interval) 1132 else if (w->interval)
1036 { 1133 {
… …
1083 ev_rt_now = ev_time (); 1180 ev_rt_now = ev_time ();
1084 return 1; 1181 return 1;
1085 } 1182 }
1086} 1183}
1087 1184
1088static void 1185inline void
1089time_update (EV_P) 1186time_update (EV_P)
1090{ 1187{
1091 int i; 1188 int i;
1092 1189
1093#if EV_USE_MONOTONIC 1190#if EV_USE_MONOTONIC
… …
1151static int loop_done; 1248static int loop_done;
1152 1249
1153void 1250void
1154ev_loop (EV_P_ int flags) 1251ev_loop (EV_P_ int flags)
1155{ 1252{
1156 double block;
1157 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1253 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1254 ? EVUNLOOP_ONE
1255 : EVUNLOOP_CANCEL;
1158 1256
1159 do 1257 while (activecnt)
1160 { 1258 {
1161 /* queue check watchers (and execute them) */ 1259 /* queue check watchers (and execute them) */
1162 if (expect_false (preparecnt)) 1260 if (expect_false (preparecnt))
1163 { 1261 {
1164 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1262 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
… …
1171 1269
1172 /* update fd-related kernel structures */ 1270 /* update fd-related kernel structures */
1173 fd_reify (EV_A); 1271 fd_reify (EV_A);
1174 1272
1175 /* calculate blocking time */ 1273 /* calculate blocking time */
1274 {
1275 double block;
1176 1276
1177 /* we only need this for !monotonic clock or timers, but as we basically 1277 if (flags & EVLOOP_NONBLOCK || idlecnt)
1178 always have timers, we just calculate it always */ 1278 block = 0.; /* do not block at all */
1279 else
1280 {
1281 /* update time to cancel out callback processing overhead */
1179#if EV_USE_MONOTONIC 1282#if EV_USE_MONOTONIC
1180 if (expect_true (have_monotonic)) 1283 if (expect_true (have_monotonic))
1181 time_update_monotonic (EV_A); 1284 time_update_monotonic (EV_A);
1182 else 1285 else
1183#endif 1286#endif
1184 { 1287 {
1185 ev_rt_now = ev_time (); 1288 ev_rt_now = ev_time ();
1186 mn_now = ev_rt_now; 1289 mn_now = ev_rt_now;
1187 } 1290 }
1188 1291
1189 if (flags & EVLOOP_NONBLOCK || idlecnt)
1190 block = 0.;
1191 else
1192 {
1193 block = MAX_BLOCKTIME; 1292 block = MAX_BLOCKTIME;
1194 1293
1195 if (timercnt) 1294 if (timercnt)
1196 { 1295 {
1197 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1296 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1198 if (block > to) block = to; 1297 if (block > to) block = to;
1199 } 1298 }
1200 1299
1201#if EV_PERIODICS 1300#if EV_PERIODICS
1202 if (periodiccnt) 1301 if (periodiccnt)
1203 { 1302 {
1204 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1303 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1205 if (block > to) block = to; 1304 if (block > to) block = to;
1206 } 1305 }
1207#endif 1306#endif
1208 1307
1209 if (block < 0.) block = 0.; 1308 if (expect_false (block < 0.)) block = 0.;
1210 } 1309 }
1211 1310
1212 method_poll (EV_A_ block); 1311 backend_poll (EV_A_ block);
1312 }
1213 1313
1214 /* update ev_rt_now, do magic */ 1314 /* update ev_rt_now, do magic */
1215 time_update (EV_A); 1315 time_update (EV_A);
1216 1316
1217 /* queue pending timers and reschedule them */ 1317 /* queue pending timers and reschedule them */
… …
1223 /* queue idle watchers unless io or timers are pending */ 1323 /* queue idle watchers unless io or timers are pending */
1224 if (idlecnt && !any_pending (EV_A)) 1324 if (idlecnt && !any_pending (EV_A))
1225 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1325 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1226 1326
1227 /* queue check watchers, to be executed first */ 1327 /* queue check watchers, to be executed first */
1228 if (checkcnt) 1328 if (expect_false (checkcnt))
1229 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1329 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1230 1330
1231 call_pending (EV_A); 1331 call_pending (EV_A);
1232 }
1233 while (activecnt && !loop_done);
1234 1332
1235 if (loop_done != 2) 1333 if (expect_false (loop_done))
1236 loop_done = 0; 1334 break;
1335 }
1336
1337 if (loop_done == EVUNLOOP_ONE)
1338 loop_done = EVUNLOOP_CANCEL;
1237} 1339}
1238 1340
1239void 1341void
1240ev_unloop (EV_P_ int how) 1342ev_unloop (EV_P_ int how)
1241{ 1343{
… …
1298void 1400void
1299ev_io_start (EV_P_ struct ev_io *w) 1401ev_io_start (EV_P_ struct ev_io *w)
1300{ 1402{
1301 int fd = w->fd; 1403 int fd = w->fd;
1302 1404
1303 if (ev_is_active (w)) 1405 if (expect_false (ev_is_active (w)))
1304 return; 1406 return;
1305 1407
1306 assert (("ev_io_start called with negative fd", fd >= 0)); 1408 assert (("ev_io_start called with negative fd", fd >= 0));
1307 1409
1308 ev_start (EV_A_ (W)w, 1); 1410 ev_start (EV_A_ (W)w, 1);
… …
1314 1416
1315void 1417void
1316ev_io_stop (EV_P_ struct ev_io *w) 1418ev_io_stop (EV_P_ struct ev_io *w)
1317{ 1419{
1318 ev_clear_pending (EV_A_ (W)w); 1420 ev_clear_pending (EV_A_ (W)w);
1319 if (!ev_is_active (w)) 1421 if (expect_false (!ev_is_active (w)))
1320 return; 1422 return;
1321 1423
1322 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1424 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1323 1425
1324 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1426 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
… …
1328} 1430}
1329 1431
1330void 1432void
1331ev_timer_start (EV_P_ struct ev_timer *w) 1433ev_timer_start (EV_P_ struct ev_timer *w)
1332{ 1434{
1333 if (ev_is_active (w)) 1435 if (expect_false (ev_is_active (w)))
1334 return; 1436 return;
1335 1437
1336 ((WT)w)->at += mn_now; 1438 ((WT)w)->at += mn_now;
1337 1439
1338 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1440 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1339 1441
1340 ev_start (EV_A_ (W)w, ++timercnt); 1442 ev_start (EV_A_ (W)w, ++timercnt);
1341 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1443 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1342 timers [timercnt - 1] = w; 1444 timers [timercnt - 1] = w;
1343 upheap ((WT *)timers, timercnt - 1); 1445 upheap ((WT *)timers, timercnt - 1);
1344 1446
1345 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1447 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1346} 1448}
1347 1449
1348void 1450void
1349ev_timer_stop (EV_P_ struct ev_timer *w) 1451ev_timer_stop (EV_P_ struct ev_timer *w)
1350{ 1452{
1351 ev_clear_pending (EV_A_ (W)w); 1453 ev_clear_pending (EV_A_ (W)w);
1352 if (!ev_is_active (w)) 1454 if (expect_false (!ev_is_active (w)))
1353 return; 1455 return;
1354 1456
1355 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1457 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1356 1458
1357 if (((W)w)->active < timercnt--) 1459 if (expect_true (((W)w)->active < timercnt--))
1358 { 1460 {
1359 timers [((W)w)->active - 1] = timers [timercnt]; 1461 timers [((W)w)->active - 1] = timers [timercnt];
1360 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1462 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1361 } 1463 }
1362 1464
… …
1377 } 1479 }
1378 else 1480 else
1379 ev_timer_stop (EV_A_ w); 1481 ev_timer_stop (EV_A_ w);
1380 } 1482 }
1381 else if (w->repeat) 1483 else if (w->repeat)
1484 {
1485 w->at = w->repeat;
1382 ev_timer_start (EV_A_ w); 1486 ev_timer_start (EV_A_ w);
1487 }
1383} 1488}
1384 1489
1385#if EV_PERIODICS 1490#if EV_PERIODICS
1386void 1491void
1387ev_periodic_start (EV_P_ struct ev_periodic *w) 1492ev_periodic_start (EV_P_ struct ev_periodic *w)
1388{ 1493{
1389 if (ev_is_active (w)) 1494 if (expect_false (ev_is_active (w)))
1390 return; 1495 return;
1391 1496
1392 if (w->reschedule_cb) 1497 if (w->reschedule_cb)
1393 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1498 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1394 else if (w->interval) 1499 else if (w->interval)
… …
1397 /* this formula differs from the one in periodic_reify because we do not always round up */ 1502 /* this formula differs from the one in periodic_reify because we do not always round up */
1398 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1503 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1399 } 1504 }
1400 1505
1401 ev_start (EV_A_ (W)w, ++periodiccnt); 1506 ev_start (EV_A_ (W)w, ++periodiccnt);
1402 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1507 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1403 periodics [periodiccnt - 1] = w; 1508 periodics [periodiccnt - 1] = w;
1404 upheap ((WT *)periodics, periodiccnt - 1); 1509 upheap ((WT *)periodics, periodiccnt - 1);
1405 1510
1406 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1511 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1407} 1512}
1408 1513
1409void 1514void
1410ev_periodic_stop (EV_P_ struct ev_periodic *w) 1515ev_periodic_stop (EV_P_ struct ev_periodic *w)
1411{ 1516{
1412 ev_clear_pending (EV_A_ (W)w); 1517 ev_clear_pending (EV_A_ (W)w);
1413 if (!ev_is_active (w)) 1518 if (expect_false (!ev_is_active (w)))
1414 return; 1519 return;
1415 1520
1416 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1521 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1417 1522
1418 if (((W)w)->active < periodiccnt--) 1523 if (expect_true (((W)w)->active < periodiccnt--))
1419 { 1524 {
1420 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1525 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1421 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1526 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1422 } 1527 }
1423 1528
… …
1434#endif 1539#endif
1435 1540
1436void 1541void
1437ev_idle_start (EV_P_ struct ev_idle *w) 1542ev_idle_start (EV_P_ struct ev_idle *w)
1438{ 1543{
1439 if (ev_is_active (w)) 1544 if (expect_false (ev_is_active (w)))
1440 return; 1545 return;
1441 1546
1442 ev_start (EV_A_ (W)w, ++idlecnt); 1547 ev_start (EV_A_ (W)w, ++idlecnt);
1443 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); 1548 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1444 idles [idlecnt - 1] = w; 1549 idles [idlecnt - 1] = w;
1445} 1550}
1446 1551
1447void 1552void
1448ev_idle_stop (EV_P_ struct ev_idle *w) 1553ev_idle_stop (EV_P_ struct ev_idle *w)
1449{ 1554{
1450 ev_clear_pending (EV_A_ (W)w); 1555 ev_clear_pending (EV_A_ (W)w);
1451 if (!ev_is_active (w)) 1556 if (expect_false (!ev_is_active (w)))
1452 return; 1557 return;
1453 1558
1454 idles [((W)w)->active - 1] = idles [--idlecnt]; 1559 idles [((W)w)->active - 1] = idles [--idlecnt];
1455 ev_stop (EV_A_ (W)w); 1560 ev_stop (EV_A_ (W)w);
1456} 1561}
1457 1562
1458void 1563void
1459ev_prepare_start (EV_P_ struct ev_prepare *w) 1564ev_prepare_start (EV_P_ struct ev_prepare *w)
1460{ 1565{
1461 if (ev_is_active (w)) 1566 if (expect_false (ev_is_active (w)))
1462 return; 1567 return;
1463 1568
1464 ev_start (EV_A_ (W)w, ++preparecnt); 1569 ev_start (EV_A_ (W)w, ++preparecnt);
1465 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); 1570 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1466 prepares [preparecnt - 1] = w; 1571 prepares [preparecnt - 1] = w;
1467} 1572}
1468 1573
1469void 1574void
1470ev_prepare_stop (EV_P_ struct ev_prepare *w) 1575ev_prepare_stop (EV_P_ struct ev_prepare *w)
1471{ 1576{
1472 ev_clear_pending (EV_A_ (W)w); 1577 ev_clear_pending (EV_A_ (W)w);
1473 if (!ev_is_active (w)) 1578 if (expect_false (!ev_is_active (w)))
1474 return; 1579 return;
1475 1580
1476 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1581 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1477 ev_stop (EV_A_ (W)w); 1582 ev_stop (EV_A_ (W)w);
1478} 1583}
1479 1584
1480void 1585void
1481ev_check_start (EV_P_ struct ev_check *w) 1586ev_check_start (EV_P_ struct ev_check *w)
1482{ 1587{
1483 if (ev_is_active (w)) 1588 if (expect_false (ev_is_active (w)))
1484 return; 1589 return;
1485 1590
1486 ev_start (EV_A_ (W)w, ++checkcnt); 1591 ev_start (EV_A_ (W)w, ++checkcnt);
1487 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); 1592 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1488 checks [checkcnt - 1] = w; 1593 checks [checkcnt - 1] = w;
1489} 1594}
1490 1595
1491void 1596void
1492ev_check_stop (EV_P_ struct ev_check *w) 1597ev_check_stop (EV_P_ struct ev_check *w)
1493{ 1598{
1494 ev_clear_pending (EV_A_ (W)w); 1599 ev_clear_pending (EV_A_ (W)w);
1495 if (!ev_is_active (w)) 1600 if (expect_false (!ev_is_active (w)))
1496 return; 1601 return;
1497 1602
1498 checks [((W)w)->active - 1] = checks [--checkcnt]; 1603 checks [((W)w)->active - 1] = checks [--checkcnt];
1499 ev_stop (EV_A_ (W)w); 1604 ev_stop (EV_A_ (W)w);
1500} 1605}
… …
1505 1610
1506void 1611void
1507ev_signal_start (EV_P_ struct ev_signal *w) 1612ev_signal_start (EV_P_ struct ev_signal *w)
1508{ 1613{
1509#if EV_MULTIPLICITY 1614#if EV_MULTIPLICITY
1510 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1615 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1511#endif 1616#endif
1512 if (ev_is_active (w)) 1617 if (expect_false (ev_is_active (w)))
1513 return; 1618 return;
1514 1619
1515 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1620 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1516 1621
1517 ev_start (EV_A_ (W)w, 1); 1622 ev_start (EV_A_ (W)w, 1);
… …
1534 1639
1535void 1640void
1536ev_signal_stop (EV_P_ struct ev_signal *w) 1641ev_signal_stop (EV_P_ struct ev_signal *w)
1537{ 1642{
1538 ev_clear_pending (EV_A_ (W)w); 1643 ev_clear_pending (EV_A_ (W)w);
1539 if (!ev_is_active (w)) 1644 if (expect_false (!ev_is_active (w)))
1540 return; 1645 return;
1541 1646
1542 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1647 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1543 ev_stop (EV_A_ (W)w); 1648 ev_stop (EV_A_ (W)w);
1544 1649
… …
1548 1653
1549void 1654void
1550ev_child_start (EV_P_ struct ev_child *w) 1655ev_child_start (EV_P_ struct ev_child *w)
1551{ 1656{
1552#if EV_MULTIPLICITY 1657#if EV_MULTIPLICITY
1553 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1658 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1554#endif 1659#endif
1555 if (ev_is_active (w)) 1660 if (expect_false (ev_is_active (w)))
1556 return; 1661 return;
1557 1662
1558 ev_start (EV_A_ (W)w, 1); 1663 ev_start (EV_A_ (W)w, 1);
1559 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1664 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1560} 1665}
1561 1666
1562void 1667void
1563ev_child_stop (EV_P_ struct ev_child *w) 1668ev_child_stop (EV_P_ struct ev_child *w)
1564{ 1669{
1565 ev_clear_pending (EV_A_ (W)w); 1670 ev_clear_pending (EV_A_ (W)w);
1566 if (!ev_is_active (w)) 1671 if (expect_false (!ev_is_active (w)))
1567 return; 1672 return;
1568 1673
1569 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1674 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1570 ev_stop (EV_A_ (W)w); 1675 ev_stop (EV_A_ (W)w);
1571} 1676}
1677
1678#if EV_MULTIPLICITY
1679static void
1680embed_cb (EV_P_ struct ev_io *io, int revents)
1681{
1682 struct ev_embed *w = (struct ev_embed *)(((char *)io) - offsetof (struct ev_embed, io));
1683
1684 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1685 ev_loop (w->loop, EVLOOP_NONBLOCK);
1686}
1687
1688void
1689ev_embed_start (EV_P_ struct ev_embed *w)
1690{
1691 if (expect_false (ev_is_active (w)))
1692 return;
1693
1694 {
1695 struct ev_loop *loop = w->loop;
1696 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1697 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1698 }
1699
1700 ev_io_start (EV_A_ &w->io);
1701 ev_start (EV_A_ (W)w, 1);
1702}
1703
1704void
1705ev_embed_stop (EV_P_ struct ev_embed *w)
1706{
1707 ev_clear_pending (EV_A_ (W)w);
1708 if (expect_false (!ev_is_active (w)))
1709 return;
1710
1711 ev_io_stop (EV_A_ &w->io);
1712 ev_stop (EV_A_ (W)w);
1713}
1714#endif
1572 1715
1573/*****************************************************************************/ 1716/*****************************************************************************/
1574 1717
1575struct ev_once 1718struct ev_once
1576{ 1719{
… …
1608void 1751void
1609ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1752ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1610{ 1753{
1611 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 1754 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1612 1755
1613 if (!once) 1756 if (expect_false (!once))
1757 {
1614 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1758 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1615 else 1759 return;
1616 { 1760 }
1761
1617 once->cb = cb; 1762 once->cb = cb;
1618 once->arg = arg; 1763 once->arg = arg;
1619 1764
1620 ev_init (&once->io, once_cb_io); 1765 ev_init (&once->io, once_cb_io);
1621 if (fd >= 0) 1766 if (fd >= 0)
1622 { 1767 {
1623 ev_io_set (&once->io, fd, events); 1768 ev_io_set (&once->io, fd, events);
1624 ev_io_start (EV_A_ &once->io); 1769 ev_io_start (EV_A_ &once->io);
1625 } 1770 }
1626 1771
1627 ev_init (&once->to, once_cb_to); 1772 ev_init (&once->to, once_cb_to);
1628 if (timeout >= 0.) 1773 if (timeout >= 0.)
1629 { 1774 {
1630 ev_timer_set (&once->to, timeout, 0.); 1775 ev_timer_set (&once->to, timeout, 0.);
1631 ev_timer_start (EV_A_ &once->to); 1776 ev_timer_start (EV_A_ &once->to);
1632 }
1633 } 1777 }
1634} 1778}
1635 1779
1636#ifdef __cplusplus 1780#ifdef __cplusplus
1637} 1781}

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