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Comparing libev/ev.c (file contents):
Revision 1.111 by root, Mon Nov 12 06:34:49 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

… …
41# define EV_USE_MONOTONIC 1 41# define EV_USE_MONOTONIC 1
42# endif 42# endif
43# ifndef EV_USE_REALTIME 43# ifndef EV_USE_REALTIME
44# define EV_USE_REALTIME 1 44# define EV_USE_REALTIME 1
45# endif 45# endif
46# else
47# ifndef EV_USE_MONOTONIC
48# define EV_USE_MONOTONIC 0
49# endif
50# ifndef EV_USE_REALTIME
51# define EV_USE_REALTIME 0
52# endif
46# endif 53# endif
47 54
48# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) 55# ifndef EV_USE_SELECT
56# if HAVE_SELECT && HAVE_SYS_SELECT_H
49# define EV_USE_SELECT 1 57# define EV_USE_SELECT 1
58# else
59# define EV_USE_SELECT 0
60# endif
50# endif 61# endif
51 62
52# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) 63# ifndef EV_USE_POLL
64# if HAVE_POLL && HAVE_POLL_H
53# define EV_USE_POLL 1 65# define EV_USE_POLL 1
66# else
67# define EV_USE_POLL 0
68# endif
54# endif 69# endif
55 70
56# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) 71# ifndef EV_USE_EPOLL
72# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57# define EV_USE_EPOLL 1 73# define EV_USE_EPOLL 1
74# else
75# define EV_USE_EPOLL 0
76# endif
58# endif 77# endif
59 78
79# ifndef EV_USE_KQUEUE
60# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) 80# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61# define EV_USE_KQUEUE 1 81# define EV_USE_KQUEUE 1
82# else
83# define EV_USE_KQUEUE 0
84# endif
85# endif
86
87# ifndef EV_USE_PORT
88# if HAVE_PORT_H && HAVE_PORT_CREATE
89# define EV_USE_PORT 1
90# else
91# define EV_USE_PORT 0
92# endif
62# endif 93# endif
63 94
64#endif 95#endif
65 96
66#include <math.h> 97#include <math.h>
… …
90#endif 121#endif
91 122
92/**/ 123/**/
93 124
94#ifndef EV_USE_MONOTONIC 125#ifndef EV_USE_MONOTONIC
95# define EV_USE_MONOTONIC 1 126# define EV_USE_MONOTONIC 0
127#endif
128
129#ifndef EV_USE_REALTIME
130# define EV_USE_REALTIME 0
96#endif 131#endif
97 132
98#ifndef EV_USE_SELECT 133#ifndef EV_USE_SELECT
99# define EV_USE_SELECT 1 134# define EV_USE_SELECT 1
100# define EV_SELECT_USE_FD_SET 1
101#endif 135#endif
102 136
103#ifndef EV_USE_POLL 137#ifndef EV_USE_POLL
104# ifdef _WIN32 138# ifdef _WIN32
105# define EV_USE_POLL 0 139# define EV_USE_POLL 0
… …
114 148
115#ifndef EV_USE_KQUEUE 149#ifndef EV_USE_KQUEUE
116# define EV_USE_KQUEUE 0 150# define EV_USE_KQUEUE 0
117#endif 151#endif
118 152
119#ifndef EV_USE_REALTIME 153#ifndef EV_USE_PORT
120# define EV_USE_REALTIME 1 154# define EV_USE_PORT 0
121#endif 155#endif
122 156
123/**/ 157/**/
124
125/* darwin simply cannot be helped */
126#ifdef __APPLE__
127# undef EV_USE_POLL
128# undef EV_USE_KQUEUE
129#endif
130 158
131#ifndef CLOCK_MONOTONIC 159#ifndef CLOCK_MONOTONIC
132# undef EV_USE_MONOTONIC 160# undef EV_USE_MONOTONIC
133# define EV_USE_MONOTONIC 0 161# define EV_USE_MONOTONIC 0
134#endif 162#endif
… …
143#endif 171#endif
144 172
145/**/ 173/**/
146 174
147#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 175#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) */ 176#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 */ 177#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 */ 178/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
151 179
152#ifdef EV_H 180#ifdef EV_H
153# include EV_H 181# include EV_H
154#else 182#else
155# include "ev.h" 183# include "ev.h"
156#endif 184#endif
157 185
158#if __GNUC__ >= 3 186#if __GNUC__ >= 3
159# define expect(expr,value) __builtin_expect ((expr),(value)) 187# define expect(expr,value) __builtin_expect ((expr),(value))
160# define inline inline 188# define inline static inline
161#else 189#else
162# define expect(expr,value) (expr) 190# define expect(expr,value) (expr)
163# define inline static 191# define inline static
164#endif 192#endif
165 193
… …
167#define expect_true(expr) expect ((expr) != 0, 1) 195#define expect_true(expr) expect ((expr) != 0, 1)
168 196
169#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 197#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
170#define ABSPRI(w) ((w)->priority - EV_MINPRI) 198#define ABSPRI(w) ((w)->priority - EV_MINPRI)
171 199
172#define EMPTY /* required for microsofts broken pseudo-c compiler */ 200#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
201#define EMPTY2(a,b) /* used to suppress some warnings */
173 202
174typedef struct ev_watcher *W; 203typedef struct ev_watcher *W;
175typedef struct ev_watcher_list *WL; 204typedef struct ev_watcher_list *WL;
176typedef struct ev_watcher_time *WT; 205typedef struct ev_watcher_time *WT;
177 206
… …
257 #include "ev_vars.h" 286 #include "ev_vars.h"
258 #undef VAR 287 #undef VAR
259 }; 288 };
260 #include "ev_wrap.h" 289 #include "ev_wrap.h"
261 290
262 struct ev_loop default_loop_struct; 291 static struct ev_loop default_loop_struct;
263 static struct ev_loop *default_loop; 292 struct ev_loop *ev_default_loop_ptr;
264 293
265#else 294#else
266 295
267 ev_tstamp ev_rt_now; 296 ev_tstamp ev_rt_now;
268 #define VAR(name,decl) static decl; 297 #define VAR(name,decl) static decl;
269 #include "ev_vars.h" 298 #include "ev_vars.h"
270 #undef VAR 299 #undef VAR
271 300
272 static int default_loop; 301 static int ev_default_loop_ptr;
273 302
274#endif 303#endif
275 304
276/*****************************************************************************/ 305/*****************************************************************************/
277 306
… …
358void 387void
359ev_feed_event (EV_P_ void *w, int revents) 388ev_feed_event (EV_P_ void *w, int revents)
360{ 389{
361 W w_ = (W)w; 390 W w_ = (W)w;
362 391
363 if (w_->pending) 392 if (expect_false (w_->pending))
364 { 393 {
365 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 394 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
366 return; 395 return;
367 } 396 }
368 397
369 w_->pending = ++pendingcnt [ABSPRI (w_)]; 398 w_->pending = ++pendingcnt [ABSPRI (w_)];
370 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); 399 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
371 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 400 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
372 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 401 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
373} 402}
374 403
375static void 404static void
… …
402 fd_event (EV_A_ fd, revents); 431 fd_event (EV_A_ fd, revents);
403} 432}
404 433
405/*****************************************************************************/ 434/*****************************************************************************/
406 435
407static void 436inline void
408fd_reify (EV_P) 437fd_reify (EV_P)
409{ 438{
410 int i; 439 int i;
411 440
412 for (i = 0; i < fdchangecnt; ++i) 441 for (i = 0; i < fdchangecnt; ++i)
… …
429 } 458 }
430#endif 459#endif
431 460
432 anfd->reify = 0; 461 anfd->reify = 0;
433 462
434 method_modify (EV_A_ fd, anfd->events, events); 463 backend_modify (EV_A_ fd, anfd->events, events);
435 anfd->events = events; 464 anfd->events = events;
436 } 465 }
437 466
438 fdchangecnt = 0; 467 fdchangecnt = 0;
439} 468}
440 469
441static void 470static void
442fd_change (EV_P_ int fd) 471fd_change (EV_P_ int fd)
443{ 472{
444 if (anfds [fd].reify) 473 if (expect_false (anfds [fd].reify))
445 return; 474 return;
446 475
447 anfds [fd].reify = 1; 476 anfds [fd].reify = 1;
448 477
449 ++fdchangecnt; 478 ++fdchangecnt;
450 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 479 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
451 fdchanges [fdchangecnt - 1] = fd; 480 fdchanges [fdchangecnt - 1] = fd;
452} 481}
453 482
454static void 483static void
455fd_kill (EV_P_ int fd) 484fd_kill (EV_P_ int fd)
… …
461 ev_io_stop (EV_A_ w); 490 ev_io_stop (EV_A_ w);
462 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 491 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
463 } 492 }
464} 493}
465 494
466static int 495inline int
467fd_valid (int fd) 496fd_valid (int fd)
468{ 497{
469#ifdef _WIN32 498#ifdef _WIN32
470 return _get_osfhandle (fd) != -1; 499 return _get_osfhandle (fd) != -1;
471#else 500#else
… …
497 fd_kill (EV_A_ fd); 526 fd_kill (EV_A_ fd);
498 return; 527 return;
499 } 528 }
500} 529}
501 530
502/* usually called after fork if method needs to re-arm all fds from scratch */ 531/* usually called after fork if backend needs to re-arm all fds from scratch */
503static void 532static void
504fd_rearm_all (EV_P) 533fd_rearm_all (EV_P)
505{ 534{
506 int fd; 535 int fd;
507 536
… …
613ev_feed_signal_event (EV_P_ int signum) 642ev_feed_signal_event (EV_P_ int signum)
614{ 643{
615 WL w; 644 WL w;
616 645
617#if EV_MULTIPLICITY 646#if EV_MULTIPLICITY
618 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 647 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
619#endif 648#endif
620 649
621 --signum; 650 --signum;
622 651
623 if (signum < 0 || signum >= signalmax) 652 if (signum < 0 || signum >= signalmax)
… …
640 for (signum = signalmax; signum--; ) 669 for (signum = signalmax; signum--; )
641 if (signals [signum].gotsig) 670 if (signals [signum].gotsig)
642 ev_feed_signal_event (EV_A_ signum + 1); 671 ev_feed_signal_event (EV_A_ signum + 1);
643} 672}
644 673
645inline void 674static void
646fd_intern (int fd) 675fd_intern (int fd)
647{ 676{
648#ifdef _WIN32 677#ifdef _WIN32
649 int arg = 1; 678 int arg = 1;
650 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 679 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
698 int pid, status; 727 int pid, status;
699 728
700 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 729 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
701 { 730 {
702 /* make sure we are called again until all childs have been reaped */ 731 /* make sure we are called again until all childs have been reaped */
732 /* 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); 733 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
704 734
705 child_reap (EV_A_ sw, pid, pid, status); 735 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 */ 736 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
707 } 737 }
708} 738}
709 739
710#endif 740#endif
711 741
712/*****************************************************************************/ 742/*****************************************************************************/
713 743
744#if EV_USE_PORT
745# include "ev_port.c"
746#endif
714#if EV_USE_KQUEUE 747#if EV_USE_KQUEUE
715# include "ev_kqueue.c" 748# include "ev_kqueue.c"
716#endif 749#endif
717#if EV_USE_EPOLL 750#if EV_USE_EPOLL
718# include "ev_epoll.c" 751# include "ev_epoll.c"
… …
747 || getgid () != getegid (); 780 || getgid () != getegid ();
748#endif 781#endif
749} 782}
750 783
751unsigned int 784unsigned int
752ev_method (EV_P) 785ev_supported_backends (void)
753{ 786{
754 return method; 787 unsigned int flags = 0;
788
789 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
790 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
791 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
792 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
793 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
794
795 return flags;
796}
797
798unsigned int
799ev_recommended_backends (void)
800{
801 unsigned int flags = ev_supported_backends ();
802
803#ifndef __NetBSD__
804 /* kqueue is borked on everything but netbsd apparently */
805 /* it usually doesn't work correctly on anything but sockets and pipes */
806 flags &= ~EVBACKEND_KQUEUE;
807#endif
808#ifdef __APPLE__
809 // flags &= ~EVBACKEND_KQUEUE; for documentation
810 flags &= ~EVBACKEND_POLL;
811#endif
812
813 return flags;
814}
815
816unsigned int
817ev_backend (EV_P)
818{
819 return backend;
755} 820}
756 821
757static void 822static void
758loop_init (EV_P_ unsigned int flags) 823loop_init (EV_P_ unsigned int flags)
759{ 824{
760 if (!method) 825 if (!backend)
761 { 826 {
762#if EV_USE_MONOTONIC 827#if EV_USE_MONOTONIC
763 { 828 {
764 struct timespec ts; 829 struct timespec ts;
765 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 830 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
770 ev_rt_now = ev_time (); 835 ev_rt_now = ev_time ();
771 mn_now = get_clock (); 836 mn_now = get_clock ();
772 now_floor = mn_now; 837 now_floor = mn_now;
773 rtmn_diff = ev_rt_now - mn_now; 838 rtmn_diff = ev_rt_now - mn_now;
774 839
775 if (!(flags & EVMETHOD_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 840 if (!(flags & EVFLAG_NOENV)
841 && !enable_secure ()
842 && getenv ("LIBEV_FLAGS"))
776 flags = atoi (getenv ("LIBEV_FLAGS")); 843 flags = atoi (getenv ("LIBEV_FLAGS"));
777 844
778 if (!(flags & 0x0000ffff)) 845 if (!(flags & 0x0000ffffUL))
779 flags |= 0x0000ffff; 846 flags |= ev_recommended_backends ();
780 847
781 method = 0; 848 backend = 0;
849#if EV_USE_PORT
850 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
851#endif
782#if EV_USE_KQUEUE 852#if EV_USE_KQUEUE
783 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 853 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
784#endif 854#endif
785#if EV_USE_EPOLL 855#if EV_USE_EPOLL
786 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 856 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
787#endif 857#endif
788#if EV_USE_POLL 858#if EV_USE_POLL
789 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 859 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
790#endif 860#endif
791#if EV_USE_SELECT 861#if EV_USE_SELECT
792 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 862 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
793#endif 863#endif
794 864
795 ev_init (&sigev, sigcb); 865 ev_init (&sigev, sigcb);
796 ev_set_priority (&sigev, EV_MAXPRI); 866 ev_set_priority (&sigev, EV_MAXPRI);
797 } 867 }
798} 868}
799 869
800void 870static void
801loop_destroy (EV_P) 871loop_destroy (EV_P)
802{ 872{
803 int i; 873 int i;
804 874
875#if EV_USE_PORT
876 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
877#endif
805#if EV_USE_KQUEUE 878#if EV_USE_KQUEUE
806 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 879 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
807#endif 880#endif
808#if EV_USE_EPOLL 881#if EV_USE_EPOLL
809 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 882 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
810#endif 883#endif
811#if EV_USE_POLL 884#if EV_USE_POLL
812 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 885 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
813#endif 886#endif
814#if EV_USE_SELECT 887#if EV_USE_SELECT
815 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 888 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
816#endif 889#endif
817 890
818 for (i = NUMPRI; i--; ) 891 for (i = NUMPRI; i--; )
819 array_free (pending, [i]); 892 array_free (pending, [i]);
820 893
821 /* have to use the microsoft-never-gets-it-right macro */ 894 /* have to use the microsoft-never-gets-it-right macro */
822 array_free (fdchange, EMPTY); 895 array_free (fdchange, EMPTY0);
823 array_free (timer, EMPTY); 896 array_free (timer, EMPTY0);
824#if EV_PERIODICS 897#if EV_PERIODICS
825 array_free (periodic, EMPTY); 898 array_free (periodic, EMPTY0);
826#endif 899#endif
827 array_free (idle, EMPTY); 900 array_free (idle, EMPTY0);
828 array_free (prepare, EMPTY); 901 array_free (prepare, EMPTY0);
829 array_free (check, EMPTY); 902 array_free (check, EMPTY0);
830 903
831 method = 0; 904 backend = 0;
832} 905}
833 906
834static void 907static void
835loop_fork (EV_P) 908loop_fork (EV_P)
836{ 909{
910#if EV_USE_PORT
911 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
912#endif
913#if EV_USE_KQUEUE
914 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
915#endif
837#if EV_USE_EPOLL 916#if EV_USE_EPOLL
838 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 917 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 918#endif
843 919
844 if (ev_is_active (&sigev)) 920 if (ev_is_active (&sigev))
845 { 921 {
846 /* default loop */ 922 /* default loop */
… …
867 943
868 memset (loop, 0, sizeof (struct ev_loop)); 944 memset (loop, 0, sizeof (struct ev_loop));
869 945
870 loop_init (EV_A_ flags); 946 loop_init (EV_A_ flags);
871 947
872 if (ev_method (EV_A)) 948 if (ev_backend (EV_A))
873 return loop; 949 return loop;
874 950
875 return 0; 951 return 0;
876} 952}
877 953
… …
890 966
891#endif 967#endif
892 968
893#if EV_MULTIPLICITY 969#if EV_MULTIPLICITY
894struct ev_loop * 970struct ev_loop *
971ev_default_loop_init (unsigned int flags)
895#else 972#else
896int 973int
897#endif
898ev_default_loop (unsigned int flags) 974ev_default_loop (unsigned int flags)
975#endif
899{ 976{
900 if (sigpipe [0] == sigpipe [1]) 977 if (sigpipe [0] == sigpipe [1])
901 if (pipe (sigpipe)) 978 if (pipe (sigpipe))
902 return 0; 979 return 0;
903 980
904 if (!default_loop) 981 if (!ev_default_loop_ptr)
905 { 982 {
906#if EV_MULTIPLICITY 983#if EV_MULTIPLICITY
907 struct ev_loop *loop = default_loop = &default_loop_struct; 984 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
908#else 985#else
909 default_loop = 1; 986 ev_default_loop_ptr = 1;
910#endif 987#endif
911 988
912 loop_init (EV_A_ flags); 989 loop_init (EV_A_ flags);
913 990
914 if (ev_method (EV_A)) 991 if (ev_backend (EV_A))
915 { 992 {
916 siginit (EV_A); 993 siginit (EV_A);
917 994
918#ifndef _WIN32 995#ifndef _WIN32
919 ev_signal_init (&childev, childcb, SIGCHLD); 996 ev_signal_init (&childev, childcb, SIGCHLD);
… …
921 ev_signal_start (EV_A_ &childev); 998 ev_signal_start (EV_A_ &childev);
922 ev_unref (EV_A); /* child watcher should not keep loop alive */ 999 ev_unref (EV_A); /* child watcher should not keep loop alive */
923#endif 1000#endif
924 } 1001 }
925 else 1002 else
926 default_loop = 0; 1003 ev_default_loop_ptr = 0;
927 } 1004 }
928 1005
929 return default_loop; 1006 return ev_default_loop_ptr;
930} 1007}
931 1008
932void 1009void
933ev_default_destroy (void) 1010ev_default_destroy (void)
934{ 1011{
935#if EV_MULTIPLICITY 1012#if EV_MULTIPLICITY
936 struct ev_loop *loop = default_loop; 1013 struct ev_loop *loop = ev_default_loop_ptr;
937#endif 1014#endif
938 1015
939#ifndef _WIN32 1016#ifndef _WIN32
940 ev_ref (EV_A); /* child watcher */ 1017 ev_ref (EV_A); /* child watcher */
941 ev_signal_stop (EV_A_ &childev); 1018 ev_signal_stop (EV_A_ &childev);
… …
952 1029
953void 1030void
954ev_default_fork (void) 1031ev_default_fork (void)
955{ 1032{
956#if EV_MULTIPLICITY 1033#if EV_MULTIPLICITY
957 struct ev_loop *loop = default_loop; 1034 struct ev_loop *loop = ev_default_loop_ptr;
958#endif 1035#endif
959 1036
960 if (method) 1037 if (backend)
961 postfork = 1; 1038 postfork = 1;
962} 1039}
963 1040
964/*****************************************************************************/ 1041/*****************************************************************************/
965 1042
… …
973 return 1; 1050 return 1;
974 1051
975 return 0; 1052 return 0;
976} 1053}
977 1054
978static void 1055inline void
979call_pending (EV_P) 1056call_pending (EV_P)
980{ 1057{
981 int pri; 1058 int pri;
982 1059
983 for (pri = NUMPRI; pri--; ) 1060 for (pri = NUMPRI; pri--; )
984 while (pendingcnt [pri]) 1061 while (pendingcnt [pri])
985 { 1062 {
986 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1063 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
987 1064
988 if (p->w) 1065 if (expect_true (p->w))
989 { 1066 {
990 p->w->pending = 0; 1067 p->w->pending = 0;
991 EV_CB_INVOKE (p->w, p->events); 1068 EV_CB_INVOKE (p->w, p->events);
992 } 1069 }
993 } 1070 }
994} 1071}
995 1072
996static void 1073inline void
997timers_reify (EV_P) 1074timers_reify (EV_P)
998{ 1075{
999 while (timercnt && ((WT)timers [0])->at <= mn_now) 1076 while (timercnt && ((WT)timers [0])->at <= mn_now)
1000 { 1077 {
1001 struct ev_timer *w = timers [0]; 1078 struct ev_timer *w = timers [0];
… …
1019 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1096 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1020 } 1097 }
1021} 1098}
1022 1099
1023#if EV_PERIODICS 1100#if EV_PERIODICS
1024static void 1101inline void
1025periodics_reify (EV_P) 1102periodics_reify (EV_P)
1026{ 1103{
1027 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1104 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1028 { 1105 {
1029 struct ev_periodic *w = periodics [0]; 1106 struct ev_periodic *w = periodics [0];
… …
1088 ev_rt_now = ev_time (); 1165 ev_rt_now = ev_time ();
1089 return 1; 1166 return 1;
1090 } 1167 }
1091} 1168}
1092 1169
1093static void 1170inline void
1094time_update (EV_P) 1171time_update (EV_P)
1095{ 1172{
1096 int i; 1173 int i;
1097 1174
1098#if EV_USE_MONOTONIC 1175#if EV_USE_MONOTONIC
… …
1159ev_loop (EV_P_ int flags) 1236ev_loop (EV_P_ int flags)
1160{ 1237{
1161 double block; 1238 double block;
1162 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1239 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
1163 1240
1164 do 1241 while (activecnt)
1165 { 1242 {
1166 /* queue check watchers (and execute them) */ 1243 /* queue check watchers (and execute them) */
1167 if (expect_false (preparecnt)) 1244 if (expect_false (preparecnt))
1168 { 1245 {
1169 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1246 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
… …
1197 { 1274 {
1198 block = MAX_BLOCKTIME; 1275 block = MAX_BLOCKTIME;
1199 1276
1200 if (timercnt) 1277 if (timercnt)
1201 { 1278 {
1202 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1279 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1203 if (block > to) block = to; 1280 if (block > to) block = to;
1204 } 1281 }
1205 1282
1206#if EV_PERIODICS 1283#if EV_PERIODICS
1207 if (periodiccnt) 1284 if (periodiccnt)
1208 { 1285 {
1209 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1286 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1210 if (block > to) block = to; 1287 if (block > to) block = to;
1211 } 1288 }
1212#endif 1289#endif
1213 1290
1214 if (block < 0.) block = 0.; 1291 if (expect_false (block < 0.)) block = 0.;
1215 } 1292 }
1216 1293
1217 method_poll (EV_A_ block); 1294 backend_poll (EV_A_ block);
1218 1295
1219 /* update ev_rt_now, do magic */ 1296 /* update ev_rt_now, do magic */
1220 time_update (EV_A); 1297 time_update (EV_A);
1221 1298
1222 /* queue pending timers and reschedule them */ 1299 /* queue pending timers and reschedule them */
… …
1228 /* queue idle watchers unless io or timers are pending */ 1305 /* queue idle watchers unless io or timers are pending */
1229 if (idlecnt && !any_pending (EV_A)) 1306 if (idlecnt && !any_pending (EV_A))
1230 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1307 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1231 1308
1232 /* queue check watchers, to be executed first */ 1309 /* queue check watchers, to be executed first */
1233 if (checkcnt) 1310 if (expect_false (checkcnt))
1234 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1311 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1235 1312
1236 call_pending (EV_A); 1313 call_pending (EV_A);
1314
1315 if (expect_false (loop_done))
1316 break;
1237 } 1317 }
1238 while (activecnt && !loop_done);
1239 1318
1240 if (loop_done != 2) 1319 if (loop_done != 2)
1241 loop_done = 0; 1320 loop_done = 0;
1242} 1321}
1243 1322
… …
1303void 1382void
1304ev_io_start (EV_P_ struct ev_io *w) 1383ev_io_start (EV_P_ struct ev_io *w)
1305{ 1384{
1306 int fd = w->fd; 1385 int fd = w->fd;
1307 1386
1308 if (ev_is_active (w)) 1387 if (expect_false (ev_is_active (w)))
1309 return; 1388 return;
1310 1389
1311 assert (("ev_io_start called with negative fd", fd >= 0)); 1390 assert (("ev_io_start called with negative fd", fd >= 0));
1312 1391
1313 ev_start (EV_A_ (W)w, 1); 1392 ev_start (EV_A_ (W)w, 1);
… …
1319 1398
1320void 1399void
1321ev_io_stop (EV_P_ struct ev_io *w) 1400ev_io_stop (EV_P_ struct ev_io *w)
1322{ 1401{
1323 ev_clear_pending (EV_A_ (W)w); 1402 ev_clear_pending (EV_A_ (W)w);
1324 if (!ev_is_active (w)) 1403 if (expect_false (!ev_is_active (w)))
1325 return; 1404 return;
1326 1405
1327 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1406 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1328 1407
1329 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1408 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
… …
1333} 1412}
1334 1413
1335void 1414void
1336ev_timer_start (EV_P_ struct ev_timer *w) 1415ev_timer_start (EV_P_ struct ev_timer *w)
1337{ 1416{
1338 if (ev_is_active (w)) 1417 if (expect_false (ev_is_active (w)))
1339 return; 1418 return;
1340 1419
1341 ((WT)w)->at += mn_now; 1420 ((WT)w)->at += mn_now;
1342 1421
1343 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1422 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1344 1423
1345 ev_start (EV_A_ (W)w, ++timercnt); 1424 ev_start (EV_A_ (W)w, ++timercnt);
1346 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1425 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1347 timers [timercnt - 1] = w; 1426 timers [timercnt - 1] = w;
1348 upheap ((WT *)timers, timercnt - 1); 1427 upheap ((WT *)timers, timercnt - 1);
1349 1428
1350 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1429 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1351} 1430}
1352 1431
1353void 1432void
1354ev_timer_stop (EV_P_ struct ev_timer *w) 1433ev_timer_stop (EV_P_ struct ev_timer *w)
1355{ 1434{
1356 ev_clear_pending (EV_A_ (W)w); 1435 ev_clear_pending (EV_A_ (W)w);
1357 if (!ev_is_active (w)) 1436 if (expect_false (!ev_is_active (w)))
1358 return; 1437 return;
1359 1438
1360 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1439 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1361 1440
1362 if (((W)w)->active < timercnt--) 1441 if (expect_true (((W)w)->active < timercnt--))
1363 { 1442 {
1364 timers [((W)w)->active - 1] = timers [timercnt]; 1443 timers [((W)w)->active - 1] = timers [timercnt];
1365 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1444 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1366 } 1445 }
1367 1446
… …
1382 } 1461 }
1383 else 1462 else
1384 ev_timer_stop (EV_A_ w); 1463 ev_timer_stop (EV_A_ w);
1385 } 1464 }
1386 else if (w->repeat) 1465 else if (w->repeat)
1466 {
1467 w->at = w->repeat;
1387 ev_timer_start (EV_A_ w); 1468 ev_timer_start (EV_A_ w);
1469 }
1388} 1470}
1389 1471
1390#if EV_PERIODICS 1472#if EV_PERIODICS
1391void 1473void
1392ev_periodic_start (EV_P_ struct ev_periodic *w) 1474ev_periodic_start (EV_P_ struct ev_periodic *w)
1393{ 1475{
1394 if (ev_is_active (w)) 1476 if (expect_false (ev_is_active (w)))
1395 return; 1477 return;
1396 1478
1397 if (w->reschedule_cb) 1479 if (w->reschedule_cb)
1398 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1480 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1399 else if (w->interval) 1481 else if (w->interval)
… …
1402 /* this formula differs from the one in periodic_reify because we do not always round up */ 1484 /* this formula differs from the one in periodic_reify because we do not always round up */
1403 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1485 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1404 } 1486 }
1405 1487
1406 ev_start (EV_A_ (W)w, ++periodiccnt); 1488 ev_start (EV_A_ (W)w, ++periodiccnt);
1407 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1489 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1408 periodics [periodiccnt - 1] = w; 1490 periodics [periodiccnt - 1] = w;
1409 upheap ((WT *)periodics, periodiccnt - 1); 1491 upheap ((WT *)periodics, periodiccnt - 1);
1410 1492
1411 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1493 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1412} 1494}
1413 1495
1414void 1496void
1415ev_periodic_stop (EV_P_ struct ev_periodic *w) 1497ev_periodic_stop (EV_P_ struct ev_periodic *w)
1416{ 1498{
1417 ev_clear_pending (EV_A_ (W)w); 1499 ev_clear_pending (EV_A_ (W)w);
1418 if (!ev_is_active (w)) 1500 if (expect_false (!ev_is_active (w)))
1419 return; 1501 return;
1420 1502
1421 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1503 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1422 1504
1423 if (((W)w)->active < periodiccnt--) 1505 if (expect_true (((W)w)->active < periodiccnt--))
1424 { 1506 {
1425 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1507 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1426 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1508 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1427 } 1509 }
1428 1510
… …
1439#endif 1521#endif
1440 1522
1441void 1523void
1442ev_idle_start (EV_P_ struct ev_idle *w) 1524ev_idle_start (EV_P_ struct ev_idle *w)
1443{ 1525{
1444 if (ev_is_active (w)) 1526 if (expect_false (ev_is_active (w)))
1445 return; 1527 return;
1446 1528
1447 ev_start (EV_A_ (W)w, ++idlecnt); 1529 ev_start (EV_A_ (W)w, ++idlecnt);
1448 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); 1530 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1449 idles [idlecnt - 1] = w; 1531 idles [idlecnt - 1] = w;
1450} 1532}
1451 1533
1452void 1534void
1453ev_idle_stop (EV_P_ struct ev_idle *w) 1535ev_idle_stop (EV_P_ struct ev_idle *w)
1454{ 1536{
1455 ev_clear_pending (EV_A_ (W)w); 1537 ev_clear_pending (EV_A_ (W)w);
1456 if (!ev_is_active (w)) 1538 if (expect_false (!ev_is_active (w)))
1457 return; 1539 return;
1458 1540
1459 idles [((W)w)->active - 1] = idles [--idlecnt]; 1541 idles [((W)w)->active - 1] = idles [--idlecnt];
1460 ev_stop (EV_A_ (W)w); 1542 ev_stop (EV_A_ (W)w);
1461} 1543}
1462 1544
1463void 1545void
1464ev_prepare_start (EV_P_ struct ev_prepare *w) 1546ev_prepare_start (EV_P_ struct ev_prepare *w)
1465{ 1547{
1466 if (ev_is_active (w)) 1548 if (expect_false (ev_is_active (w)))
1467 return; 1549 return;
1468 1550
1469 ev_start (EV_A_ (W)w, ++preparecnt); 1551 ev_start (EV_A_ (W)w, ++preparecnt);
1470 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); 1552 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1471 prepares [preparecnt - 1] = w; 1553 prepares [preparecnt - 1] = w;
1472} 1554}
1473 1555
1474void 1556void
1475ev_prepare_stop (EV_P_ struct ev_prepare *w) 1557ev_prepare_stop (EV_P_ struct ev_prepare *w)
1476{ 1558{
1477 ev_clear_pending (EV_A_ (W)w); 1559 ev_clear_pending (EV_A_ (W)w);
1478 if (!ev_is_active (w)) 1560 if (expect_false (!ev_is_active (w)))
1479 return; 1561 return;
1480 1562
1481 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1563 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1482 ev_stop (EV_A_ (W)w); 1564 ev_stop (EV_A_ (W)w);
1483} 1565}
1484 1566
1485void 1567void
1486ev_check_start (EV_P_ struct ev_check *w) 1568ev_check_start (EV_P_ struct ev_check *w)
1487{ 1569{
1488 if (ev_is_active (w)) 1570 if (expect_false (ev_is_active (w)))
1489 return; 1571 return;
1490 1572
1491 ev_start (EV_A_ (W)w, ++checkcnt); 1573 ev_start (EV_A_ (W)w, ++checkcnt);
1492 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); 1574 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1493 checks [checkcnt - 1] = w; 1575 checks [checkcnt - 1] = w;
1494} 1576}
1495 1577
1496void 1578void
1497ev_check_stop (EV_P_ struct ev_check *w) 1579ev_check_stop (EV_P_ struct ev_check *w)
1498{ 1580{
1499 ev_clear_pending (EV_A_ (W)w); 1581 ev_clear_pending (EV_A_ (W)w);
1500 if (!ev_is_active (w)) 1582 if (expect_false (!ev_is_active (w)))
1501 return; 1583 return;
1502 1584
1503 checks [((W)w)->active - 1] = checks [--checkcnt]; 1585 checks [((W)w)->active - 1] = checks [--checkcnt];
1504 ev_stop (EV_A_ (W)w); 1586 ev_stop (EV_A_ (W)w);
1505} 1587}
… …
1510 1592
1511void 1593void
1512ev_signal_start (EV_P_ struct ev_signal *w) 1594ev_signal_start (EV_P_ struct ev_signal *w)
1513{ 1595{
1514#if EV_MULTIPLICITY 1596#if EV_MULTIPLICITY
1515 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1597 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1516#endif 1598#endif
1517 if (ev_is_active (w)) 1599 if (expect_false (ev_is_active (w)))
1518 return; 1600 return;
1519 1601
1520 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1602 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1521 1603
1522 ev_start (EV_A_ (W)w, 1); 1604 ev_start (EV_A_ (W)w, 1);
… …
1539 1621
1540void 1622void
1541ev_signal_stop (EV_P_ struct ev_signal *w) 1623ev_signal_stop (EV_P_ struct ev_signal *w)
1542{ 1624{
1543 ev_clear_pending (EV_A_ (W)w); 1625 ev_clear_pending (EV_A_ (W)w);
1544 if (!ev_is_active (w)) 1626 if (expect_false (!ev_is_active (w)))
1545 return; 1627 return;
1546 1628
1547 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1629 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1548 ev_stop (EV_A_ (W)w); 1630 ev_stop (EV_A_ (W)w);
1549 1631
… …
1553 1635
1554void 1636void
1555ev_child_start (EV_P_ struct ev_child *w) 1637ev_child_start (EV_P_ struct ev_child *w)
1556{ 1638{
1557#if EV_MULTIPLICITY 1639#if EV_MULTIPLICITY
1558 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1640 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1559#endif 1641#endif
1560 if (ev_is_active (w)) 1642 if (expect_false (ev_is_active (w)))
1561 return; 1643 return;
1562 1644
1563 ev_start (EV_A_ (W)w, 1); 1645 ev_start (EV_A_ (W)w, 1);
1564 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1646 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1565} 1647}
1566 1648
1567void 1649void
1568ev_child_stop (EV_P_ struct ev_child *w) 1650ev_child_stop (EV_P_ struct ev_child *w)
1569{ 1651{
1570 ev_clear_pending (EV_A_ (W)w); 1652 ev_clear_pending (EV_A_ (W)w);
1571 if (!ev_is_active (w)) 1653 if (expect_false (!ev_is_active (w)))
1572 return; 1654 return;
1573 1655
1574 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1656 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1575 ev_stop (EV_A_ (W)w); 1657 ev_stop (EV_A_ (W)w);
1576} 1658}
… …
1613void 1695void
1614ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1696ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1615{ 1697{
1616 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 1698 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1617 1699
1618 if (!once) 1700 if (expect_false (!once))
1701 {
1619 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1702 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1620 else 1703 return;
1621 { 1704 }
1705
1622 once->cb = cb; 1706 once->cb = cb;
1623 once->arg = arg; 1707 once->arg = arg;
1624 1708
1625 ev_init (&once->io, once_cb_io); 1709 ev_init (&once->io, once_cb_io);
1626 if (fd >= 0) 1710 if (fd >= 0)
1627 { 1711 {
1628 ev_io_set (&once->io, fd, events); 1712 ev_io_set (&once->io, fd, events);
1629 ev_io_start (EV_A_ &once->io); 1713 ev_io_start (EV_A_ &once->io);
1630 } 1714 }
1631 1715
1632 ev_init (&once->to, once_cb_to); 1716 ev_init (&once->to, once_cb_to);
1633 if (timeout >= 0.) 1717 if (timeout >= 0.)
1634 { 1718 {
1635 ev_timer_set (&once->to, timeout, 0.); 1719 ev_timer_set (&once->to, timeout, 0.);
1636 ev_timer_start (EV_A_ &once->to); 1720 ev_timer_start (EV_A_ &once->to);
1637 }
1638 } 1721 }
1639} 1722}
1640 1723
1641#ifdef __cplusplus 1724#ifdef __cplusplus
1642} 1725}

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