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Comparing libev/ev.c (file contents):
Revision 1.114 by root, Mon Nov 12 20:03:39 2007 UTC vs.
Revision 1.136 by root, Sat Nov 24 07:14:26 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
… …
170#define ABSPRI(w) ((w)->priority - EV_MINPRI) 202#define ABSPRI(w) ((w)->priority - EV_MINPRI)
171 203
172#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 204#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
173#define EMPTY2(a,b) /* used to suppress some warnings */ 205#define EMPTY2(a,b) /* used to suppress some warnings */
174 206
175typedef struct ev_watcher *W; 207typedef ev_watcher *W;
176typedef struct ev_watcher_list *WL; 208typedef ev_watcher_list *WL;
177typedef struct ev_watcher_time *WT; 209typedef ev_watcher_time *WT;
178 210
179static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 211static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
180 212
181#ifdef _WIN32 213#ifdef _WIN32
182# include "ev_win32.c" 214# include "ev_win32.c"
… …
258 #include "ev_vars.h" 290 #include "ev_vars.h"
259 #undef VAR 291 #undef VAR
260 }; 292 };
261 #include "ev_wrap.h" 293 #include "ev_wrap.h"
262 294
263 struct ev_loop default_loop_struct; 295 static struct ev_loop default_loop_struct;
264 static struct ev_loop *default_loop; 296 struct ev_loop *ev_default_loop_ptr;
265 297
266#else 298#else
267 299
268 ev_tstamp ev_rt_now; 300 ev_tstamp ev_rt_now;
269 #define VAR(name,decl) static decl; 301 #define VAR(name,decl) static decl;
270 #include "ev_vars.h" 302 #include "ev_vars.h"
271 #undef VAR 303 #undef VAR
272 304
273 static int default_loop; 305 static int ev_default_loop_ptr;
274 306
275#endif 307#endif
276 308
277/*****************************************************************************/ 309/*****************************************************************************/
278 310
… …
359void 391void
360ev_feed_event (EV_P_ void *w, int revents) 392ev_feed_event (EV_P_ void *w, int revents)
361{ 393{
362 W w_ = (W)w; 394 W w_ = (W)w;
363 395
364 if (w_->pending) 396 if (expect_false (w_->pending))
365 { 397 {
366 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 398 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
367 return; 399 return;
368 } 400 }
369 401
… …
384 416
385inline void 417inline void
386fd_event (EV_P_ int fd, int revents) 418fd_event (EV_P_ int fd, int revents)
387{ 419{
388 ANFD *anfd = anfds + fd; 420 ANFD *anfd = anfds + fd;
389 struct ev_io *w; 421 ev_io *w;
390 422
391 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 423 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
392 { 424 {
393 int ev = w->events & revents; 425 int ev = w->events & revents;
394 426
395 if (ev) 427 if (ev)
396 ev_feed_event (EV_A_ (W)w, ev); 428 ev_feed_event (EV_A_ (W)w, ev);
… …
403 fd_event (EV_A_ fd, revents); 435 fd_event (EV_A_ fd, revents);
404} 436}
405 437
406/*****************************************************************************/ 438/*****************************************************************************/
407 439
408static void 440inline void
409fd_reify (EV_P) 441fd_reify (EV_P)
410{ 442{
411 int i; 443 int i;
412 444
413 for (i = 0; i < fdchangecnt; ++i) 445 for (i = 0; i < fdchangecnt; ++i)
414 { 446 {
415 int fd = fdchanges [i]; 447 int fd = fdchanges [i];
416 ANFD *anfd = anfds + fd; 448 ANFD *anfd = anfds + fd;
417 struct ev_io *w; 449 ev_io *w;
418 450
419 int events = 0; 451 int events = 0;
420 452
421 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 453 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
422 events |= w->events; 454 events |= w->events;
423 455
424#if EV_SELECT_IS_WINSOCKET 456#if EV_SELECT_IS_WINSOCKET
425 if (events) 457 if (events)
426 { 458 {
… …
430 } 462 }
431#endif 463#endif
432 464
433 anfd->reify = 0; 465 anfd->reify = 0;
434 466
435 method_modify (EV_A_ fd, anfd->events, events); 467 backend_modify (EV_A_ fd, anfd->events, events);
436 anfd->events = events; 468 anfd->events = events;
437 } 469 }
438 470
439 fdchangecnt = 0; 471 fdchangecnt = 0;
440} 472}
441 473
442static void 474static void
443fd_change (EV_P_ int fd) 475fd_change (EV_P_ int fd)
444{ 476{
445 if (anfds [fd].reify) 477 if (expect_false (anfds [fd].reify))
446 return; 478 return;
447 479
448 anfds [fd].reify = 1; 480 anfds [fd].reify = 1;
449 481
450 ++fdchangecnt; 482 ++fdchangecnt;
… …
453} 485}
454 486
455static void 487static void
456fd_kill (EV_P_ int fd) 488fd_kill (EV_P_ int fd)
457{ 489{
458 struct ev_io *w; 490 ev_io *w;
459 491
460 while ((w = (struct ev_io *)anfds [fd].head)) 492 while ((w = (ev_io *)anfds [fd].head))
461 { 493 {
462 ev_io_stop (EV_A_ w); 494 ev_io_stop (EV_A_ w);
463 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 495 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
464 } 496 }
465} 497}
466 498
467static int 499inline int
468fd_valid (int fd) 500fd_valid (int fd)
469{ 501{
470#ifdef _WIN32 502#ifdef _WIN32
471 return _get_osfhandle (fd) != -1; 503 return _get_osfhandle (fd) != -1;
472#else 504#else
… …
498 fd_kill (EV_A_ fd); 530 fd_kill (EV_A_ fd);
499 return; 531 return;
500 } 532 }
501} 533}
502 534
503/* usually called after fork if method needs to re-arm all fds from scratch */ 535/* usually called after fork if backend needs to re-arm all fds from scratch */
504static void 536static void
505fd_rearm_all (EV_P) 537fd_rearm_all (EV_P)
506{ 538{
507 int fd; 539 int fd;
508 540
… …
576static ANSIG *signals; 608static ANSIG *signals;
577static int signalmax; 609static int signalmax;
578 610
579static int sigpipe [2]; 611static int sigpipe [2];
580static sig_atomic_t volatile gotsig; 612static sig_atomic_t volatile gotsig;
581static struct ev_io sigev; 613static ev_io sigev;
582 614
583static void 615static void
584signals_init (ANSIG *base, int count) 616signals_init (ANSIG *base, int count)
585{ 617{
586 while (count--) 618 while (count--)
… …
614ev_feed_signal_event (EV_P_ int signum) 646ev_feed_signal_event (EV_P_ int signum)
615{ 647{
616 WL w; 648 WL w;
617 649
618#if EV_MULTIPLICITY 650#if EV_MULTIPLICITY
619 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 651 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
620#endif 652#endif
621 653
622 --signum; 654 --signum;
623 655
624 if (signum < 0 || signum >= signalmax) 656 if (signum < 0 || signum >= signalmax)
… …
629 for (w = signals [signum].head; w; w = w->next) 661 for (w = signals [signum].head; w; w = w->next)
630 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 662 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
631} 663}
632 664
633static void 665static void
634sigcb (EV_P_ struct ev_io *iow, int revents) 666sigcb (EV_P_ ev_io *iow, int revents)
635{ 667{
636 int signum; 668 int signum;
637 669
638 read (sigpipe [0], &revents, 1); 670 read (sigpipe [0], &revents, 1);
639 gotsig = 0; 671 gotsig = 0;
… …
641 for (signum = signalmax; signum--; ) 673 for (signum = signalmax; signum--; )
642 if (signals [signum].gotsig) 674 if (signals [signum].gotsig)
643 ev_feed_signal_event (EV_A_ signum + 1); 675 ev_feed_signal_event (EV_A_ signum + 1);
644} 676}
645 677
646inline void 678static void
647fd_intern (int fd) 679fd_intern (int fd)
648{ 680{
649#ifdef _WIN32 681#ifdef _WIN32
650 int arg = 1; 682 int arg = 1;
651 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 683 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
666 ev_unref (EV_A); /* child watcher should not keep loop alive */ 698 ev_unref (EV_A); /* child watcher should not keep loop alive */
667} 699}
668 700
669/*****************************************************************************/ 701/*****************************************************************************/
670 702
671static struct ev_child *childs [PID_HASHSIZE]; 703static ev_child *childs [PID_HASHSIZE];
672 704
673#ifndef _WIN32 705#ifndef _WIN32
674 706
675static struct ev_signal childev; 707static ev_signal childev;
676 708
677#ifndef WCONTINUED 709#ifndef WCONTINUED
678# define WCONTINUED 0 710# define WCONTINUED 0
679#endif 711#endif
680 712
681static void 713static void
682child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 714child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
683{ 715{
684 struct ev_child *w; 716 ev_child *w;
685 717
686 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 718 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
687 if (w->pid == pid || !w->pid) 719 if (w->pid == pid || !w->pid)
688 { 720 {
689 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 721 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
690 w->rpid = pid; 722 w->rpid = pid;
691 w->rstatus = status; 723 w->rstatus = status;
692 ev_feed_event (EV_A_ (W)w, EV_CHILD); 724 ev_feed_event (EV_A_ (W)w, EV_CHILD);
693 } 725 }
694} 726}
695 727
696static void 728static void
697childcb (EV_P_ struct ev_signal *sw, int revents) 729childcb (EV_P_ ev_signal *sw, int revents)
698{ 730{
699 int pid, status; 731 int pid, status;
700 732
701 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 733 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
702 { 734 {
703 /* make sure we are called again until all childs have been reaped */ 735 /* make sure we are called again until all childs have been reaped */
736 /* we need to do it this way so that the callback gets called before we continue */
704 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 737 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
705 738
706 child_reap (EV_A_ sw, pid, pid, status); 739 child_reap (EV_A_ sw, pid, pid, status);
707 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 740 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
708 } 741 }
709} 742}
710 743
711#endif 744#endif
712 745
713/*****************************************************************************/ 746/*****************************************************************************/
714 747
748#if EV_USE_PORT
749# include "ev_port.c"
750#endif
715#if EV_USE_KQUEUE 751#if EV_USE_KQUEUE
716# include "ev_kqueue.c" 752# include "ev_kqueue.c"
717#endif 753#endif
718#if EV_USE_EPOLL 754#if EV_USE_EPOLL
719# include "ev_epoll.c" 755# include "ev_epoll.c"
… …
748 || getgid () != getegid (); 784 || getgid () != getegid ();
749#endif 785#endif
750} 786}
751 787
752unsigned int 788unsigned int
753ev_method (EV_P) 789ev_supported_backends (void)
754{ 790{
755 return method; 791 unsigned int flags = 0;
792
793 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
794 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
795 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
796 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
797 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
798
799 return flags;
800}
801
802unsigned int
803ev_recommended_backends (void)
804{
805 unsigned int flags = ev_supported_backends ();
806
807#ifndef __NetBSD__
808 /* kqueue is borked on everything but netbsd apparently */
809 /* it usually doesn't work correctly on anything but sockets and pipes */
810 flags &= ~EVBACKEND_KQUEUE;
811#endif
812#ifdef __APPLE__
813 // flags &= ~EVBACKEND_KQUEUE; for documentation
814 flags &= ~EVBACKEND_POLL;
815#endif
816
817 return flags;
818}
819
820unsigned int
821ev_embeddable_backends (void)
822{
823 return EVBACKEND_EPOLL
824 | EVBACKEND_KQUEUE
825 | EVBACKEND_PORT;
826}
827
828unsigned int
829ev_backend (EV_P)
830{
831 return backend;
756} 832}
757 833
758static void 834static void
759loop_init (EV_P_ unsigned int flags) 835loop_init (EV_P_ unsigned int flags)
760{ 836{
761 if (!method) 837 if (!backend)
762 { 838 {
763#if EV_USE_MONOTONIC 839#if EV_USE_MONOTONIC
764 { 840 {
765 struct timespec ts; 841 struct timespec ts;
766 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 842 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
771 ev_rt_now = ev_time (); 847 ev_rt_now = ev_time ();
772 mn_now = get_clock (); 848 mn_now = get_clock ();
773 now_floor = mn_now; 849 now_floor = mn_now;
774 rtmn_diff = ev_rt_now - mn_now; 850 rtmn_diff = ev_rt_now - mn_now;
775 851
776 if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 852 if (!(flags & EVFLAG_NOENV)
853 && !enable_secure ()
854 && getenv ("LIBEV_FLAGS"))
777 flags = atoi (getenv ("LIBEV_FLAGS")); 855 flags = atoi (getenv ("LIBEV_FLAGS"));
778 856
779 if (!(flags & 0x0000ffff)) 857 if (!(flags & 0x0000ffffUL))
780 flags |= 0x0000ffff; 858 flags |= ev_recommended_backends ();
781 859
782 method = 0; 860 backend = 0;
861#if EV_USE_PORT
862 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
863#endif
783#if EV_USE_KQUEUE 864#if EV_USE_KQUEUE
784 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 865 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
785#endif 866#endif
786#if EV_USE_EPOLL 867#if EV_USE_EPOLL
787 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 868 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
788#endif 869#endif
789#if EV_USE_POLL 870#if EV_USE_POLL
790 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 871 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
791#endif 872#endif
792#if EV_USE_SELECT 873#if EV_USE_SELECT
793 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 874 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
794#endif 875#endif
795 876
796 ev_init (&sigev, sigcb); 877 ev_init (&sigev, sigcb);
797 ev_set_priority (&sigev, EV_MAXPRI); 878 ev_set_priority (&sigev, EV_MAXPRI);
798 } 879 }
799} 880}
800 881
801void 882static void
802loop_destroy (EV_P) 883loop_destroy (EV_P)
803{ 884{
804 int i; 885 int i;
805 886
887#if EV_USE_PORT
888 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
889#endif
806#if EV_USE_KQUEUE 890#if EV_USE_KQUEUE
807 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 891 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
808#endif 892#endif
809#if EV_USE_EPOLL 893#if EV_USE_EPOLL
810 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 894 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
811#endif 895#endif
812#if EV_USE_POLL 896#if EV_USE_POLL
813 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 897 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
814#endif 898#endif
815#if EV_USE_SELECT 899#if EV_USE_SELECT
816 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 900 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
817#endif 901#endif
818 902
819 for (i = NUMPRI; i--; ) 903 for (i = NUMPRI; i--; )
820 array_free (pending, [i]); 904 array_free (pending, [i]);
821 905
… …
827#endif 911#endif
828 array_free (idle, EMPTY0); 912 array_free (idle, EMPTY0);
829 array_free (prepare, EMPTY0); 913 array_free (prepare, EMPTY0);
830 array_free (check, EMPTY0); 914 array_free (check, EMPTY0);
831 915
832 method = 0; 916 backend = 0;
833} 917}
834 918
835static void 919static void
836loop_fork (EV_P) 920loop_fork (EV_P)
837{ 921{
922#if EV_USE_PORT
923 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
924#endif
925#if EV_USE_KQUEUE
926 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
927#endif
838#if EV_USE_EPOLL 928#if EV_USE_EPOLL
839 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 929 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
840#endif
841#if EV_USE_KQUEUE
842 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
843#endif 930#endif
844 931
845 if (ev_is_active (&sigev)) 932 if (ev_is_active (&sigev))
846 { 933 {
847 /* default loop */ 934 /* default loop */
… …
868 955
869 memset (loop, 0, sizeof (struct ev_loop)); 956 memset (loop, 0, sizeof (struct ev_loop));
870 957
871 loop_init (EV_A_ flags); 958 loop_init (EV_A_ flags);
872 959
873 if (ev_method (EV_A)) 960 if (ev_backend (EV_A))
874 return loop; 961 return loop;
875 962
876 return 0; 963 return 0;
877} 964}
878 965
… …
891 978
892#endif 979#endif
893 980
894#if EV_MULTIPLICITY 981#if EV_MULTIPLICITY
895struct ev_loop * 982struct ev_loop *
983ev_default_loop_init (unsigned int flags)
896#else 984#else
897int 985int
898#endif
899ev_default_loop (unsigned int flags) 986ev_default_loop (unsigned int flags)
987#endif
900{ 988{
901 if (sigpipe [0] == sigpipe [1]) 989 if (sigpipe [0] == sigpipe [1])
902 if (pipe (sigpipe)) 990 if (pipe (sigpipe))
903 return 0; 991 return 0;
904 992
905 if (!default_loop) 993 if (!ev_default_loop_ptr)
906 { 994 {
907#if EV_MULTIPLICITY 995#if EV_MULTIPLICITY
908 struct ev_loop *loop = default_loop = &default_loop_struct; 996 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
909#else 997#else
910 default_loop = 1; 998 ev_default_loop_ptr = 1;
911#endif 999#endif
912 1000
913 loop_init (EV_A_ flags); 1001 loop_init (EV_A_ flags);
914 1002
915 if (ev_method (EV_A)) 1003 if (ev_backend (EV_A))
916 { 1004 {
917 siginit (EV_A); 1005 siginit (EV_A);
918 1006
919#ifndef _WIN32 1007#ifndef _WIN32
920 ev_signal_init (&childev, childcb, SIGCHLD); 1008 ev_signal_init (&childev, childcb, SIGCHLD);
… …
922 ev_signal_start (EV_A_ &childev); 1010 ev_signal_start (EV_A_ &childev);
923 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1011 ev_unref (EV_A); /* child watcher should not keep loop alive */
924#endif 1012#endif
925 } 1013 }
926 else 1014 else
927 default_loop = 0; 1015 ev_default_loop_ptr = 0;
928 } 1016 }
929 1017
930 return default_loop; 1018 return ev_default_loop_ptr;
931} 1019}
932 1020
933void 1021void
934ev_default_destroy (void) 1022ev_default_destroy (void)
935{ 1023{
936#if EV_MULTIPLICITY 1024#if EV_MULTIPLICITY
937 struct ev_loop *loop = default_loop; 1025 struct ev_loop *loop = ev_default_loop_ptr;
938#endif 1026#endif
939 1027
940#ifndef _WIN32 1028#ifndef _WIN32
941 ev_ref (EV_A); /* child watcher */ 1029 ev_ref (EV_A); /* child watcher */
942 ev_signal_stop (EV_A_ &childev); 1030 ev_signal_stop (EV_A_ &childev);
… …
953 1041
954void 1042void
955ev_default_fork (void) 1043ev_default_fork (void)
956{ 1044{
957#if EV_MULTIPLICITY 1045#if EV_MULTIPLICITY
958 struct ev_loop *loop = default_loop; 1046 struct ev_loop *loop = ev_default_loop_ptr;
959#endif 1047#endif
960 1048
961 if (method) 1049 if (backend)
962 postfork = 1; 1050 postfork = 1;
963} 1051}
964 1052
965/*****************************************************************************/ 1053/*****************************************************************************/
966 1054
… …
974 return 1; 1062 return 1;
975 1063
976 return 0; 1064 return 0;
977} 1065}
978 1066
979static void 1067inline void
980call_pending (EV_P) 1068call_pending (EV_P)
981{ 1069{
982 int pri; 1070 int pri;
983 1071
984 for (pri = NUMPRI; pri--; ) 1072 for (pri = NUMPRI; pri--; )
985 while (pendingcnt [pri]) 1073 while (pendingcnt [pri])
986 { 1074 {
987 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1075 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
988 1076
989 if (p->w) 1077 if (expect_true (p->w))
990 { 1078 {
991 p->w->pending = 0; 1079 p->w->pending = 0;
992 EV_CB_INVOKE (p->w, p->events); 1080 EV_CB_INVOKE (p->w, p->events);
993 } 1081 }
994 } 1082 }
995} 1083}
996 1084
997static void 1085inline void
998timers_reify (EV_P) 1086timers_reify (EV_P)
999{ 1087{
1000 while (timercnt && ((WT)timers [0])->at <= mn_now) 1088 while (timercnt && ((WT)timers [0])->at <= mn_now)
1001 { 1089 {
1002 struct ev_timer *w = timers [0]; 1090 ev_timer *w = timers [0];
1003 1091
1004 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1092 assert (("inactive timer on timer heap detected", ev_is_active (w)));
1005 1093
1006 /* first reschedule or stop timer */ 1094 /* first reschedule or stop timer */
1007 if (w->repeat) 1095 if (w->repeat)
… …
1020 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1108 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1021 } 1109 }
1022} 1110}
1023 1111
1024#if EV_PERIODICS 1112#if EV_PERIODICS
1025static void 1113inline void
1026periodics_reify (EV_P) 1114periodics_reify (EV_P)
1027{ 1115{
1028 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1116 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1029 { 1117 {
1030 struct ev_periodic *w = periodics [0]; 1118 ev_periodic *w = periodics [0];
1031 1119
1032 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1120 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1033 1121
1034 /* first reschedule or stop timer */ 1122 /* first reschedule or stop timer */
1035 if (w->reschedule_cb) 1123 if (w->reschedule_cb)
… …
1057 int i; 1145 int i;
1058 1146
1059 /* adjust periodics after time jump */ 1147 /* adjust periodics after time jump */
1060 for (i = 0; i < periodiccnt; ++i) 1148 for (i = 0; i < periodiccnt; ++i)
1061 { 1149 {
1062 struct ev_periodic *w = periodics [i]; 1150 ev_periodic *w = periodics [i];
1063 1151
1064 if (w->reschedule_cb) 1152 if (w->reschedule_cb)
1065 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1153 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1066 else if (w->interval) 1154 else if (w->interval)
1067 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1155 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
… …
1089 ev_rt_now = ev_time (); 1177 ev_rt_now = ev_time ();
1090 return 1; 1178 return 1;
1091 } 1179 }
1092} 1180}
1093 1181
1094static void 1182inline void
1095time_update (EV_P) 1183time_update (EV_P)
1096{ 1184{
1097 int i; 1185 int i;
1098 1186
1099#if EV_USE_MONOTONIC 1187#if EV_USE_MONOTONIC
… …
1157static int loop_done; 1245static int loop_done;
1158 1246
1159void 1247void
1160ev_loop (EV_P_ int flags) 1248ev_loop (EV_P_ int flags)
1161{ 1249{
1162 double block;
1163 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1250 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1251 ? EVUNLOOP_ONE
1252 : EVUNLOOP_CANCEL;
1164 1253
1165 do 1254 while (activecnt)
1166 { 1255 {
1167 /* queue check watchers (and execute them) */ 1256 /* queue check watchers (and execute them) */
1168 if (expect_false (preparecnt)) 1257 if (expect_false (preparecnt))
1169 { 1258 {
1170 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1259 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
… …
1177 1266
1178 /* update fd-related kernel structures */ 1267 /* update fd-related kernel structures */
1179 fd_reify (EV_A); 1268 fd_reify (EV_A);
1180 1269
1181 /* calculate blocking time */ 1270 /* calculate blocking time */
1271 {
1272 double block;
1182 1273
1183 /* we only need this for !monotonic clock or timers, but as we basically 1274 if (flags & EVLOOP_NONBLOCK || idlecnt)
1184 always have timers, we just calculate it always */ 1275 block = 0.; /* do not block at all */
1276 else
1277 {
1278 /* update time to cancel out callback processing overhead */
1185#if EV_USE_MONOTONIC 1279#if EV_USE_MONOTONIC
1186 if (expect_true (have_monotonic)) 1280 if (expect_true (have_monotonic))
1187 time_update_monotonic (EV_A); 1281 time_update_monotonic (EV_A);
1188 else 1282 else
1189#endif 1283#endif
1190 { 1284 {
1191 ev_rt_now = ev_time (); 1285 ev_rt_now = ev_time ();
1192 mn_now = ev_rt_now; 1286 mn_now = ev_rt_now;
1193 } 1287 }
1194 1288
1195 if (flags & EVLOOP_NONBLOCK || idlecnt)
1196 block = 0.;
1197 else
1198 {
1199 block = MAX_BLOCKTIME; 1289 block = MAX_BLOCKTIME;
1200 1290
1201 if (timercnt) 1291 if (timercnt)
1202 { 1292 {
1203 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1293 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1204 if (block > to) block = to; 1294 if (block > to) block = to;
1205 } 1295 }
1206 1296
1207#if EV_PERIODICS 1297#if EV_PERIODICS
1208 if (periodiccnt) 1298 if (periodiccnt)
1209 { 1299 {
1210 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1300 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1211 if (block > to) block = to; 1301 if (block > to) block = to;
1212 } 1302 }
1213#endif 1303#endif
1214 1304
1215 if (block < 0.) block = 0.; 1305 if (expect_false (block < 0.)) block = 0.;
1216 } 1306 }
1217 1307
1218 method_poll (EV_A_ block); 1308 backend_poll (EV_A_ block);
1309 }
1219 1310
1220 /* update ev_rt_now, do magic */ 1311 /* update ev_rt_now, do magic */
1221 time_update (EV_A); 1312 time_update (EV_A);
1222 1313
1223 /* queue pending timers and reschedule them */ 1314 /* queue pending timers and reschedule them */
… …
1229 /* queue idle watchers unless io or timers are pending */ 1320 /* queue idle watchers unless io or timers are pending */
1230 if (idlecnt && !any_pending (EV_A)) 1321 if (idlecnt && !any_pending (EV_A))
1231 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1322 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1232 1323
1233 /* queue check watchers, to be executed first */ 1324 /* queue check watchers, to be executed first */
1234 if (checkcnt) 1325 if (expect_false (checkcnt))
1235 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1326 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1236 1327
1237 call_pending (EV_A); 1328 call_pending (EV_A);
1238 }
1239 while (activecnt && !loop_done);
1240 1329
1241 if (loop_done != 2) 1330 if (expect_false (loop_done))
1242 loop_done = 0; 1331 break;
1332 }
1333
1334 if (loop_done == EVUNLOOP_ONE)
1335 loop_done = EVUNLOOP_CANCEL;
1243} 1336}
1244 1337
1245void 1338void
1246ev_unloop (EV_P_ int how) 1339ev_unloop (EV_P_ int how)
1247{ 1340{
… …
1300} 1393}
1301 1394
1302/*****************************************************************************/ 1395/*****************************************************************************/
1303 1396
1304void 1397void
1305ev_io_start (EV_P_ struct ev_io *w) 1398ev_io_start (EV_P_ ev_io *w)
1306{ 1399{
1307 int fd = w->fd; 1400 int fd = w->fd;
1308 1401
1309 if (ev_is_active (w)) 1402 if (expect_false (ev_is_active (w)))
1310 return; 1403 return;
1311 1404
1312 assert (("ev_io_start called with negative fd", fd >= 0)); 1405 assert (("ev_io_start called with negative fd", fd >= 0));
1313 1406
1314 ev_start (EV_A_ (W)w, 1); 1407 ev_start (EV_A_ (W)w, 1);
… …
1317 1410
1318 fd_change (EV_A_ fd); 1411 fd_change (EV_A_ fd);
1319} 1412}
1320 1413
1321void 1414void
1322ev_io_stop (EV_P_ struct ev_io *w) 1415ev_io_stop (EV_P_ ev_io *w)
1323{ 1416{
1324 ev_clear_pending (EV_A_ (W)w); 1417 ev_clear_pending (EV_A_ (W)w);
1325 if (!ev_is_active (w)) 1418 if (expect_false (!ev_is_active (w)))
1326 return; 1419 return;
1327 1420
1328 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));
1329 1422
1330 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1423 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
… …
1332 1425
1333 fd_change (EV_A_ w->fd); 1426 fd_change (EV_A_ w->fd);
1334} 1427}
1335 1428
1336void 1429void
1337ev_timer_start (EV_P_ struct ev_timer *w) 1430ev_timer_start (EV_P_ ev_timer *w)
1338{ 1431{
1339 if (ev_is_active (w)) 1432 if (expect_false (ev_is_active (w)))
1340 return; 1433 return;
1341 1434
1342 ((WT)w)->at += mn_now; 1435 ((WT)w)->at += mn_now;
1343 1436
1344 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.));
1345 1438
1346 ev_start (EV_A_ (W)w, ++timercnt); 1439 ev_start (EV_A_ (W)w, ++timercnt);
1347 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1440 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1348 timers [timercnt - 1] = w; 1441 timers [timercnt - 1] = w;
1349 upheap ((WT *)timers, timercnt - 1); 1442 upheap ((WT *)timers, timercnt - 1);
1350 1443
1351 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1444 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1352} 1445}
1353 1446
1354void 1447void
1355ev_timer_stop (EV_P_ struct ev_timer *w) 1448ev_timer_stop (EV_P_ ev_timer *w)
1356{ 1449{
1357 ev_clear_pending (EV_A_ (W)w); 1450 ev_clear_pending (EV_A_ (W)w);
1358 if (!ev_is_active (w)) 1451 if (expect_false (!ev_is_active (w)))
1359 return; 1452 return;
1360 1453
1361 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1454 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1362 1455
1363 if (((W)w)->active < timercnt--) 1456 if (expect_true (((W)w)->active < timercnt--))
1364 { 1457 {
1365 timers [((W)w)->active - 1] = timers [timercnt]; 1458 timers [((W)w)->active - 1] = timers [timercnt];
1366 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1459 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1367 } 1460 }
1368 1461
… …
1370 1463
1371 ev_stop (EV_A_ (W)w); 1464 ev_stop (EV_A_ (W)w);
1372} 1465}
1373 1466
1374void 1467void
1375ev_timer_again (EV_P_ struct ev_timer *w) 1468ev_timer_again (EV_P_ ev_timer *w)
1376{ 1469{
1377 if (ev_is_active (w)) 1470 if (ev_is_active (w))
1378 { 1471 {
1379 if (w->repeat) 1472 if (w->repeat)
1380 { 1473 {
… …
1391 } 1484 }
1392} 1485}
1393 1486
1394#if EV_PERIODICS 1487#if EV_PERIODICS
1395void 1488void
1396ev_periodic_start (EV_P_ struct ev_periodic *w) 1489ev_periodic_start (EV_P_ ev_periodic *w)
1397{ 1490{
1398 if (ev_is_active (w)) 1491 if (expect_false (ev_is_active (w)))
1399 return; 1492 return;
1400 1493
1401 if (w->reschedule_cb) 1494 if (w->reschedule_cb)
1402 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1495 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1403 else if (w->interval) 1496 else if (w->interval)
… …
1406 /* 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 */
1407 ((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;
1408 } 1501 }
1409 1502
1410 ev_start (EV_A_ (W)w, ++periodiccnt); 1503 ev_start (EV_A_ (W)w, ++periodiccnt);
1411 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1504 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1412 periodics [periodiccnt - 1] = w; 1505 periodics [periodiccnt - 1] = w;
1413 upheap ((WT *)periodics, periodiccnt - 1); 1506 upheap ((WT *)periodics, periodiccnt - 1);
1414 1507
1415 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1508 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1416} 1509}
1417 1510
1418void 1511void
1419ev_periodic_stop (EV_P_ struct ev_periodic *w) 1512ev_periodic_stop (EV_P_ ev_periodic *w)
1420{ 1513{
1421 ev_clear_pending (EV_A_ (W)w); 1514 ev_clear_pending (EV_A_ (W)w);
1422 if (!ev_is_active (w)) 1515 if (expect_false (!ev_is_active (w)))
1423 return; 1516 return;
1424 1517
1425 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1518 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1426 1519
1427 if (((W)w)->active < periodiccnt--) 1520 if (expect_true (((W)w)->active < periodiccnt--))
1428 { 1521 {
1429 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1522 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1430 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1523 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1431 } 1524 }
1432 1525
1433 ev_stop (EV_A_ (W)w); 1526 ev_stop (EV_A_ (W)w);
1434} 1527}
1435 1528
1436void 1529void
1437ev_periodic_again (EV_P_ struct ev_periodic *w) 1530ev_periodic_again (EV_P_ ev_periodic *w)
1438{ 1531{
1439 /* TODO: use adjustheap and recalculation */ 1532 /* TODO: use adjustheap and recalculation */
1440 ev_periodic_stop (EV_A_ w); 1533 ev_periodic_stop (EV_A_ w);
1441 ev_periodic_start (EV_A_ w); 1534 ev_periodic_start (EV_A_ w);
1442} 1535}
1443#endif 1536#endif
1444 1537
1445void 1538void
1446ev_idle_start (EV_P_ struct ev_idle *w) 1539ev_idle_start (EV_P_ ev_idle *w)
1447{ 1540{
1448 if (ev_is_active (w)) 1541 if (expect_false (ev_is_active (w)))
1449 return; 1542 return;
1450 1543
1451 ev_start (EV_A_ (W)w, ++idlecnt); 1544 ev_start (EV_A_ (W)w, ++idlecnt);
1452 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); 1545 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1453 idles [idlecnt - 1] = w; 1546 idles [idlecnt - 1] = w;
1454} 1547}
1455 1548
1456void 1549void
1457ev_idle_stop (EV_P_ struct ev_idle *w) 1550ev_idle_stop (EV_P_ ev_idle *w)
1458{ 1551{
1459 ev_clear_pending (EV_A_ (W)w); 1552 ev_clear_pending (EV_A_ (W)w);
1460 if (!ev_is_active (w)) 1553 if (expect_false (!ev_is_active (w)))
1461 return; 1554 return;
1462 1555
1463 idles [((W)w)->active - 1] = idles [--idlecnt]; 1556 idles [((W)w)->active - 1] = idles [--idlecnt];
1464 ev_stop (EV_A_ (W)w); 1557 ev_stop (EV_A_ (W)w);
1465} 1558}
1466 1559
1467void 1560void
1468ev_prepare_start (EV_P_ struct ev_prepare *w) 1561ev_prepare_start (EV_P_ ev_prepare *w)
1469{ 1562{
1470 if (ev_is_active (w)) 1563 if (expect_false (ev_is_active (w)))
1471 return; 1564 return;
1472 1565
1473 ev_start (EV_A_ (W)w, ++preparecnt); 1566 ev_start (EV_A_ (W)w, ++preparecnt);
1474 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 1567 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1475 prepares [preparecnt - 1] = w; 1568 prepares [preparecnt - 1] = w;
1476} 1569}
1477 1570
1478void 1571void
1479ev_prepare_stop (EV_P_ struct ev_prepare *w) 1572ev_prepare_stop (EV_P_ ev_prepare *w)
1480{ 1573{
1481 ev_clear_pending (EV_A_ (W)w); 1574 ev_clear_pending (EV_A_ (W)w);
1482 if (!ev_is_active (w)) 1575 if (expect_false (!ev_is_active (w)))
1483 return; 1576 return;
1484 1577
1485 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1578 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1486 ev_stop (EV_A_ (W)w); 1579 ev_stop (EV_A_ (W)w);
1487} 1580}
1488 1581
1489void 1582void
1490ev_check_start (EV_P_ struct ev_check *w) 1583ev_check_start (EV_P_ ev_check *w)
1491{ 1584{
1492 if (ev_is_active (w)) 1585 if (expect_false (ev_is_active (w)))
1493 return; 1586 return;
1494 1587
1495 ev_start (EV_A_ (W)w, ++checkcnt); 1588 ev_start (EV_A_ (W)w, ++checkcnt);
1496 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); 1589 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1497 checks [checkcnt - 1] = w; 1590 checks [checkcnt - 1] = w;
1498} 1591}
1499 1592
1500void 1593void
1501ev_check_stop (EV_P_ struct ev_check *w) 1594ev_check_stop (EV_P_ ev_check *w)
1502{ 1595{
1503 ev_clear_pending (EV_A_ (W)w); 1596 ev_clear_pending (EV_A_ (W)w);
1504 if (!ev_is_active (w)) 1597 if (expect_false (!ev_is_active (w)))
1505 return; 1598 return;
1506 1599
1507 checks [((W)w)->active - 1] = checks [--checkcnt]; 1600 checks [((W)w)->active - 1] = checks [--checkcnt];
1508 ev_stop (EV_A_ (W)w); 1601 ev_stop (EV_A_ (W)w);
1509} 1602}
… …
1511#ifndef SA_RESTART 1604#ifndef SA_RESTART
1512# define SA_RESTART 0 1605# define SA_RESTART 0
1513#endif 1606#endif
1514 1607
1515void 1608void
1516ev_signal_start (EV_P_ struct ev_signal *w) 1609ev_signal_start (EV_P_ ev_signal *w)
1517{ 1610{
1518#if EV_MULTIPLICITY 1611#if EV_MULTIPLICITY
1519 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));
1520#endif 1613#endif
1521 if (ev_is_active (w)) 1614 if (expect_false (ev_is_active (w)))
1522 return; 1615 return;
1523 1616
1524 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));
1525 1618
1526 ev_start (EV_A_ (W)w, 1); 1619 ev_start (EV_A_ (W)w, 1);
… …
1540#endif 1633#endif
1541 } 1634 }
1542} 1635}
1543 1636
1544void 1637void
1545ev_signal_stop (EV_P_ struct ev_signal *w) 1638ev_signal_stop (EV_P_ ev_signal *w)
1546{ 1639{
1547 ev_clear_pending (EV_A_ (W)w); 1640 ev_clear_pending (EV_A_ (W)w);
1548 if (!ev_is_active (w)) 1641 if (expect_false (!ev_is_active (w)))
1549 return; 1642 return;
1550 1643
1551 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1644 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1552 ev_stop (EV_A_ (W)w); 1645 ev_stop (EV_A_ (W)w);
1553 1646
1554 if (!signals [w->signum - 1].head) 1647 if (!signals [w->signum - 1].head)
1555 signal (w->signum, SIG_DFL); 1648 signal (w->signum, SIG_DFL);
1556} 1649}
1557 1650
1558void 1651void
1559ev_child_start (EV_P_ struct ev_child *w) 1652ev_child_start (EV_P_ ev_child *w)
1560{ 1653{
1561#if EV_MULTIPLICITY 1654#if EV_MULTIPLICITY
1562 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));
1563#endif 1656#endif
1564 if (ev_is_active (w)) 1657 if (expect_false (ev_is_active (w)))
1565 return; 1658 return;
1566 1659
1567 ev_start (EV_A_ (W)w, 1); 1660 ev_start (EV_A_ (W)w, 1);
1568 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1661 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1569} 1662}
1570 1663
1571void 1664void
1572ev_child_stop (EV_P_ struct ev_child *w) 1665ev_child_stop (EV_P_ ev_child *w)
1573{ 1666{
1574 ev_clear_pending (EV_A_ (W)w); 1667 ev_clear_pending (EV_A_ (W)w);
1575 if (!ev_is_active (w)) 1668 if (expect_false (!ev_is_active (w)))
1576 return; 1669 return;
1577 1670
1578 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1671 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1579 ev_stop (EV_A_ (W)w); 1672 ev_stop (EV_A_ (W)w);
1580} 1673}
1581 1674
1675#if EV_MULTIPLICITY
1676void
1677ev_embed_loop (EV_P_ ev_embed *w)
1678{
1679 ev_loop (w->loop, EVLOOP_NONBLOCK);
1680}
1681
1682static void
1683embed_cb (EV_P_ ev_io *io, int revents)
1684{
1685 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1686
1687 if (ev_cb (w))
1688 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1689 else
1690 ev_embed_loop (loop, w);
1691}
1692
1693void
1694ev_embed_start (EV_P_ ev_embed *w)
1695{
1696 if (expect_false (ev_is_active (w)))
1697 return;
1698
1699 {
1700 struct ev_loop *loop = w->loop;
1701 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1702 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1703 }
1704
1705 ev_set_priority (&w->io, ev_priority (w));
1706 ev_io_start (EV_A_ &w->io);
1707 ev_start (EV_A_ (W)w, 1);
1708}
1709
1710void
1711ev_embed_stop (EV_P_ ev_embed *w)
1712{
1713 ev_clear_pending (EV_A_ (W)w);
1714 if (expect_false (!ev_is_active (w)))
1715 return;
1716
1717 ev_io_stop (EV_A_ &w->io);
1718 ev_stop (EV_A_ (W)w);
1719}
1720#endif
1721
1582/*****************************************************************************/ 1722/*****************************************************************************/
1583 1723
1584struct ev_once 1724struct ev_once
1585{ 1725{
1586 struct ev_io io; 1726 ev_io io;
1587 struct ev_timer to; 1727 ev_timer to;
1588 void (*cb)(int revents, void *arg); 1728 void (*cb)(int revents, void *arg);
1589 void *arg; 1729 void *arg;
1590}; 1730};
1591 1731
1592static void 1732static void
… …
1601 1741
1602 cb (revents, arg); 1742 cb (revents, arg);
1603} 1743}
1604 1744
1605static void 1745static void
1606once_cb_io (EV_P_ struct ev_io *w, int revents) 1746once_cb_io (EV_P_ ev_io *w, int revents)
1607{ 1747{
1608 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 1748 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1609} 1749}
1610 1750
1611static void 1751static void
1612once_cb_to (EV_P_ struct ev_timer *w, int revents) 1752once_cb_to (EV_P_ ev_timer *w, int revents)
1613{ 1753{
1614 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 1754 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1615} 1755}
1616 1756
1617void 1757void
1618ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1758ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1619{ 1759{
1620 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 1760 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1621 1761
1622 if (!once) 1762 if (expect_false (!once))
1763 {
1623 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1764 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1624 else 1765 return;
1625 { 1766 }
1767
1626 once->cb = cb; 1768 once->cb = cb;
1627 once->arg = arg; 1769 once->arg = arg;
1628 1770
1629 ev_init (&once->io, once_cb_io); 1771 ev_init (&once->io, once_cb_io);
1630 if (fd >= 0) 1772 if (fd >= 0)
1631 { 1773 {
1632 ev_io_set (&once->io, fd, events); 1774 ev_io_set (&once->io, fd, events);
1633 ev_io_start (EV_A_ &once->io); 1775 ev_io_start (EV_A_ &once->io);
1634 } 1776 }
1635 1777
1636 ev_init (&once->to, once_cb_to); 1778 ev_init (&once->to, once_cb_to);
1637 if (timeout >= 0.) 1779 if (timeout >= 0.)
1638 { 1780 {
1639 ev_timer_set (&once->to, timeout, 0.); 1781 ev_timer_set (&once->to, timeout, 0.);
1640 ev_timer_start (EV_A_ &once->to); 1782 ev_timer_start (EV_A_ &once->to);
1641 }
1642 } 1783 }
1643} 1784}
1644 1785
1645#ifdef __cplusplus 1786#ifdef __cplusplus
1646} 1787}

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