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Comparing libev/ev.c (file contents):
Revision 1.124 by root, Sat Nov 17 02:26:24 2007 UTC vs.
Revision 1.140 by root, Mon Nov 26 19:49:36 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
62# endif 89# endif
63 90
64# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) 91# ifndef EV_USE_PORT
92# if HAVE_PORT_H && HAVE_PORT_CREATE
65# define EV_USE_PORT 1 93# define EV_USE_PORT 1
94# else
95# define EV_USE_PORT 0
96# endif
66# endif 97# endif
67 98
68#endif 99#endif
69 100
70#include <math.h> 101#include <math.h>
… …
80#include <time.h> 111#include <time.h>
81 112
82#include <signal.h> 113#include <signal.h>
83 114
84#ifndef _WIN32 115#ifndef _WIN32
85# include <unistd.h>
86# include <sys/time.h> 116# include <sys/time.h>
87# include <sys/wait.h> 117# include <sys/wait.h>
118# include <unistd.h>
88#else 119#else
89# define WIN32_LEAN_AND_MEAN 120# define WIN32_LEAN_AND_MEAN
90# include <windows.h> 121# include <windows.h>
91# ifndef EV_SELECT_IS_WINSOCKET 122# ifndef EV_SELECT_IS_WINSOCKET
92# define EV_SELECT_IS_WINSOCKET 1 123# define EV_SELECT_IS_WINSOCKET 1
… …
127# define EV_USE_PORT 0 158# define EV_USE_PORT 0
128#endif 159#endif
129 160
130/**/ 161/**/
131 162
132/* darwin simply cannot be helped */
133#ifdef __APPLE__
134# undef EV_USE_POLL
135# undef EV_USE_KQUEUE
136#endif
137
138#ifndef CLOCK_MONOTONIC 163#ifndef CLOCK_MONOTONIC
139# undef EV_USE_MONOTONIC 164# undef EV_USE_MONOTONIC
140# define EV_USE_MONOTONIC 0 165# define EV_USE_MONOTONIC 0
141#endif 166#endif
142 167
… …
162# include "ev.h" 187# include "ev.h"
163#endif 188#endif
164 189
165#if __GNUC__ >= 3 190#if __GNUC__ >= 3
166# define expect(expr,value) __builtin_expect ((expr),(value)) 191# define expect(expr,value) __builtin_expect ((expr),(value))
192# define inline_size static inline /* inline for codesize */
193# if EV_MINIMAL
194# define noinline __attribute__ ((noinline))
195# define inline_speed static noinline
196# else
197# define noinline
167# define inline static inline 198# define inline_speed static inline
199# endif
168#else 200#else
169# define expect(expr,value) (expr) 201# define expect(expr,value) (expr)
170# define inline static 202# define inline_speed static
203# define inline_minimal static
204# define noinline
171#endif 205#endif
172 206
173#define expect_false(expr) expect ((expr) != 0, 0) 207#define expect_false(expr) expect ((expr) != 0, 0)
174#define expect_true(expr) expect ((expr) != 0, 1) 208#define expect_true(expr) expect ((expr) != 0, 1)
175 209
… …
177#define ABSPRI(w) ((w)->priority - EV_MINPRI) 211#define ABSPRI(w) ((w)->priority - EV_MINPRI)
178 212
179#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 213#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
180#define EMPTY2(a,b) /* used to suppress some warnings */ 214#define EMPTY2(a,b) /* used to suppress some warnings */
181 215
182typedef struct ev_watcher *W; 216typedef ev_watcher *W;
183typedef struct ev_watcher_list *WL; 217typedef ev_watcher_list *WL;
184typedef struct ev_watcher_time *WT; 218typedef ev_watcher_time *WT;
185 219
186static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 220static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
187 221
188#ifdef _WIN32 222#ifdef _WIN32
189# include "ev_win32.c" 223# include "ev_win32.c"
… …
281 315
282#endif 316#endif
283 317
284/*****************************************************************************/ 318/*****************************************************************************/
285 319
286ev_tstamp 320ev_tstamp noinline
287ev_time (void) 321ev_time (void)
288{ 322{
289#if EV_USE_REALTIME 323#if EV_USE_REALTIME
290 struct timespec ts; 324 struct timespec ts;
291 clock_gettime (CLOCK_REALTIME, &ts); 325 clock_gettime (CLOCK_REALTIME, &ts);
… …
295 gettimeofday (&tv, 0); 329 gettimeofday (&tv, 0);
296 return tv.tv_sec + tv.tv_usec * 1e-6; 330 return tv.tv_sec + tv.tv_usec * 1e-6;
297#endif 331#endif
298} 332}
299 333
300inline ev_tstamp 334ev_tstamp inline_size
301get_clock (void) 335get_clock (void)
302{ 336{
303#if EV_USE_MONOTONIC 337#if EV_USE_MONOTONIC
304 if (expect_true (have_monotonic)) 338 if (expect_true (have_monotonic))
305 { 339 {
… …
348#define array_free(stem, idx) \ 382#define array_free(stem, idx) \
349 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 383 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
350 384
351/*****************************************************************************/ 385/*****************************************************************************/
352 386
353static void 387void inline_size
354anfds_init (ANFD *base, int count) 388anfds_init (ANFD *base, int count)
355{ 389{
356 while (count--) 390 while (count--)
357 { 391 {
358 base->head = 0; 392 base->head = 0;
… …
361 395
362 ++base; 396 ++base;
363 } 397 }
364} 398}
365 399
366void 400void noinline
367ev_feed_event (EV_P_ void *w, int revents) 401ev_feed_event (EV_P_ void *w, int revents)
368{ 402{
369 W w_ = (W)w; 403 W w_ = (W)w;
370 404
371 if (expect_false (w_->pending)) 405 if (expect_false (w_->pending))
… …
387 421
388 for (i = 0; i < eventcnt; ++i) 422 for (i = 0; i < eventcnt; ++i)
389 ev_feed_event (EV_A_ events [i], type); 423 ev_feed_event (EV_A_ events [i], type);
390} 424}
391 425
392inline void 426void inline_speed
393fd_event (EV_P_ int fd, int revents) 427fd_event (EV_P_ int fd, int revents)
394{ 428{
395 ANFD *anfd = anfds + fd; 429 ANFD *anfd = anfds + fd;
396 struct ev_io *w; 430 ev_io *w;
397 431
398 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 432 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
399 { 433 {
400 int ev = w->events & revents; 434 int ev = w->events & revents;
401 435
402 if (ev) 436 if (ev)
403 ev_feed_event (EV_A_ (W)w, ev); 437 ev_feed_event (EV_A_ (W)w, ev);
… …
410 fd_event (EV_A_ fd, revents); 444 fd_event (EV_A_ fd, revents);
411} 445}
412 446
413/*****************************************************************************/ 447/*****************************************************************************/
414 448
415inline void 449void inline_size
416fd_reify (EV_P) 450fd_reify (EV_P)
417{ 451{
418 int i; 452 int i;
419 453
420 for (i = 0; i < fdchangecnt; ++i) 454 for (i = 0; i < fdchangecnt; ++i)
421 { 455 {
422 int fd = fdchanges [i]; 456 int fd = fdchanges [i];
423 ANFD *anfd = anfds + fd; 457 ANFD *anfd = anfds + fd;
424 struct ev_io *w; 458 ev_io *w;
425 459
426 int events = 0; 460 int events = 0;
427 461
428 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 462 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
429 events |= w->events; 463 events |= w->events;
430 464
431#if EV_SELECT_IS_WINSOCKET 465#if EV_SELECT_IS_WINSOCKET
432 if (events) 466 if (events)
433 { 467 {
… …
437 } 471 }
438#endif 472#endif
439 473
440 anfd->reify = 0; 474 anfd->reify = 0;
441 475
442 method_modify (EV_A_ fd, anfd->events, events); 476 backend_modify (EV_A_ fd, anfd->events, events);
443 anfd->events = events; 477 anfd->events = events;
444 } 478 }
445 479
446 fdchangecnt = 0; 480 fdchangecnt = 0;
447} 481}
448 482
449static void 483void inline_size
450fd_change (EV_P_ int fd) 484fd_change (EV_P_ int fd)
451{ 485{
452 if (expect_false (anfds [fd].reify)) 486 if (expect_false (anfds [fd].reify))
453 return; 487 return;
454 488
… …
457 ++fdchangecnt; 491 ++fdchangecnt;
458 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 492 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
459 fdchanges [fdchangecnt - 1] = fd; 493 fdchanges [fdchangecnt - 1] = fd;
460} 494}
461 495
462static void 496void inline_speed
463fd_kill (EV_P_ int fd) 497fd_kill (EV_P_ int fd)
464{ 498{
465 struct ev_io *w; 499 ev_io *w;
466 500
467 while ((w = (struct ev_io *)anfds [fd].head)) 501 while ((w = (ev_io *)anfds [fd].head))
468 { 502 {
469 ev_io_stop (EV_A_ w); 503 ev_io_stop (EV_A_ w);
470 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 504 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
471 } 505 }
472} 506}
473 507
474inline int 508int inline_size
475fd_valid (int fd) 509fd_valid (int fd)
476{ 510{
477#ifdef _WIN32 511#ifdef _WIN32
478 return _get_osfhandle (fd) != -1; 512 return _get_osfhandle (fd) != -1;
479#else 513#else
480 return fcntl (fd, F_GETFD) != -1; 514 return fcntl (fd, F_GETFD) != -1;
481#endif 515#endif
482} 516}
483 517
484/* called on EBADF to verify fds */ 518/* called on EBADF to verify fds */
485static void 519static void noinline
486fd_ebadf (EV_P) 520fd_ebadf (EV_P)
487{ 521{
488 int fd; 522 int fd;
489 523
490 for (fd = 0; fd < anfdmax; ++fd) 524 for (fd = 0; fd < anfdmax; ++fd)
… …
492 if (!fd_valid (fd) == -1 && errno == EBADF) 526 if (!fd_valid (fd) == -1 && errno == EBADF)
493 fd_kill (EV_A_ fd); 527 fd_kill (EV_A_ fd);
494} 528}
495 529
496/* called on ENOMEM in select/poll to kill some fds and retry */ 530/* called on ENOMEM in select/poll to kill some fds and retry */
497static void 531static void noinline
498fd_enomem (EV_P) 532fd_enomem (EV_P)
499{ 533{
500 int fd; 534 int fd;
501 535
502 for (fd = anfdmax; fd--; ) 536 for (fd = anfdmax; fd--; )
… …
505 fd_kill (EV_A_ fd); 539 fd_kill (EV_A_ fd);
506 return; 540 return;
507 } 541 }
508} 542}
509 543
510/* usually called after fork if method needs to re-arm all fds from scratch */ 544/* usually called after fork if backend needs to re-arm all fds from scratch */
511static void 545static void noinline
512fd_rearm_all (EV_P) 546fd_rearm_all (EV_P)
513{ 547{
514 int fd; 548 int fd;
515 549
516 /* this should be highly optimised to not do anything but set a flag */ 550 /* this should be highly optimised to not do anything but set a flag */
… …
522 } 556 }
523} 557}
524 558
525/*****************************************************************************/ 559/*****************************************************************************/
526 560
527static void 561void inline_speed
528upheap (WT *heap, int k) 562upheap (WT *heap, int k)
529{ 563{
530 WT w = heap [k]; 564 WT w = heap [k];
531 565
532 while (k && heap [k >> 1]->at > w->at) 566 while (k && heap [k >> 1]->at > w->at)
… …
539 heap [k] = w; 573 heap [k] = w;
540 ((W)heap [k])->active = k + 1; 574 ((W)heap [k])->active = k + 1;
541 575
542} 576}
543 577
544static void 578void inline_speed
545downheap (WT *heap, int N, int k) 579downheap (WT *heap, int N, int k)
546{ 580{
547 WT w = heap [k]; 581 WT w = heap [k];
548 582
549 while (k < (N >> 1)) 583 while (k < (N >> 1))
… …
563 597
564 heap [k] = w; 598 heap [k] = w;
565 ((W)heap [k])->active = k + 1; 599 ((W)heap [k])->active = k + 1;
566} 600}
567 601
568inline void 602void inline_size
569adjustheap (WT *heap, int N, int k) 603adjustheap (WT *heap, int N, int k)
570{ 604{
571 upheap (heap, k); 605 upheap (heap, k);
572 downheap (heap, N, k); 606 downheap (heap, N, k);
573} 607}
… …
583static ANSIG *signals; 617static ANSIG *signals;
584static int signalmax; 618static int signalmax;
585 619
586static int sigpipe [2]; 620static int sigpipe [2];
587static sig_atomic_t volatile gotsig; 621static sig_atomic_t volatile gotsig;
588static struct ev_io sigev; 622static ev_io sigev;
589 623
590static void 624void inline_size
591signals_init (ANSIG *base, int count) 625signals_init (ANSIG *base, int count)
592{ 626{
593 while (count--) 627 while (count--)
594 { 628 {
595 base->head = 0; 629 base->head = 0;
… …
615 write (sigpipe [1], &signum, 1); 649 write (sigpipe [1], &signum, 1);
616 errno = old_errno; 650 errno = old_errno;
617 } 651 }
618} 652}
619 653
620void 654void noinline
621ev_feed_signal_event (EV_P_ int signum) 655ev_feed_signal_event (EV_P_ int signum)
622{ 656{
623 WL w; 657 WL w;
624 658
625#if EV_MULTIPLICITY 659#if EV_MULTIPLICITY
… …
636 for (w = signals [signum].head; w; w = w->next) 670 for (w = signals [signum].head; w; w = w->next)
637 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 671 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
638} 672}
639 673
640static void 674static void
641sigcb (EV_P_ struct ev_io *iow, int revents) 675sigcb (EV_P_ ev_io *iow, int revents)
642{ 676{
643 int signum; 677 int signum;
644 678
645 read (sigpipe [0], &revents, 1); 679 read (sigpipe [0], &revents, 1);
646 gotsig = 0; 680 gotsig = 0;
… …
648 for (signum = signalmax; signum--; ) 682 for (signum = signalmax; signum--; )
649 if (signals [signum].gotsig) 683 if (signals [signum].gotsig)
650 ev_feed_signal_event (EV_A_ signum + 1); 684 ev_feed_signal_event (EV_A_ signum + 1);
651} 685}
652 686
653static void 687void inline_size
654fd_intern (int fd) 688fd_intern (int fd)
655{ 689{
656#ifdef _WIN32 690#ifdef _WIN32
657 int arg = 1; 691 int arg = 1;
658 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 692 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
660 fcntl (fd, F_SETFD, FD_CLOEXEC); 694 fcntl (fd, F_SETFD, FD_CLOEXEC);
661 fcntl (fd, F_SETFL, O_NONBLOCK); 695 fcntl (fd, F_SETFL, O_NONBLOCK);
662#endif 696#endif
663} 697}
664 698
665static void 699static void noinline
666siginit (EV_P) 700siginit (EV_P)
667{ 701{
668 fd_intern (sigpipe [0]); 702 fd_intern (sigpipe [0]);
669 fd_intern (sigpipe [1]); 703 fd_intern (sigpipe [1]);
670 704
… …
673 ev_unref (EV_A); /* child watcher should not keep loop alive */ 707 ev_unref (EV_A); /* child watcher should not keep loop alive */
674} 708}
675 709
676/*****************************************************************************/ 710/*****************************************************************************/
677 711
678static struct ev_child *childs [PID_HASHSIZE]; 712static ev_child *childs [PID_HASHSIZE];
679 713
680#ifndef _WIN32 714#ifndef _WIN32
681 715
682static struct ev_signal childev; 716static ev_signal childev;
683 717
684#ifndef WCONTINUED 718#ifndef WCONTINUED
685# define WCONTINUED 0 719# define WCONTINUED 0
686#endif 720#endif
687 721
688static void 722void inline_speed
689child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 723child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
690{ 724{
691 struct ev_child *w; 725 ev_child *w;
692 726
693 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 727 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
694 if (w->pid == pid || !w->pid) 728 if (w->pid == pid || !w->pid)
695 { 729 {
696 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 730 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
697 w->rpid = pid; 731 w->rpid = pid;
698 w->rstatus = status; 732 w->rstatus = status;
699 ev_feed_event (EV_A_ (W)w, EV_CHILD); 733 ev_feed_event (EV_A_ (W)w, EV_CHILD);
700 } 734 }
701} 735}
702 736
703static void 737static void
704childcb (EV_P_ struct ev_signal *sw, int revents) 738childcb (EV_P_ ev_signal *sw, int revents)
705{ 739{
706 int pid, status; 740 int pid, status;
707 741
708 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 742 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
709 { 743 {
710 /* make sure we are called again until all childs have been reaped */ 744 /* make sure we are called again until all childs have been reaped */
745 /* we need to do it this way so that the callback gets called before we continue */
711 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 746 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
712 747
713 child_reap (EV_A_ sw, pid, pid, status); 748 child_reap (EV_A_ sw, pid, pid, status);
714 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 749 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
715 } 750 }
716} 751}
717 752
718#endif 753#endif
719 754
… …
746{ 781{
747 return EV_VERSION_MINOR; 782 return EV_VERSION_MINOR;
748} 783}
749 784
750/* return true if we are running with elevated privileges and should ignore env variables */ 785/* return true if we are running with elevated privileges and should ignore env variables */
751static int 786int inline_size
752enable_secure (void) 787enable_secure (void)
753{ 788{
754#ifdef _WIN32 789#ifdef _WIN32
755 return 0; 790 return 0;
756#else 791#else
… …
758 || getgid () != getegid (); 793 || getgid () != getegid ();
759#endif 794#endif
760} 795}
761 796
762unsigned int 797unsigned int
763ev_method (EV_P) 798ev_supported_backends (void)
764{ 799{
765 return method; 800 unsigned int flags = 0;
801
802 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
803 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
804 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
805 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
806 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
807
808 return flags;
809}
810
811unsigned int
812ev_recommended_backends (void)
813{
814 unsigned int flags = ev_supported_backends ();
815
816#ifndef __NetBSD__
817 /* kqueue is borked on everything but netbsd apparently */
818 /* it usually doesn't work correctly on anything but sockets and pipes */
819 flags &= ~EVBACKEND_KQUEUE;
820#endif
821#ifdef __APPLE__
822 // flags &= ~EVBACKEND_KQUEUE; for documentation
823 flags &= ~EVBACKEND_POLL;
824#endif
825
826 return flags;
827}
828
829unsigned int
830ev_embeddable_backends (void)
831{
832 return EVBACKEND_EPOLL
833 | EVBACKEND_KQUEUE
834 | EVBACKEND_PORT;
835}
836
837unsigned int
838ev_backend (EV_P)
839{
840 return backend;
766} 841}
767 842
768static void 843static void
769loop_init (EV_P_ unsigned int flags) 844loop_init (EV_P_ unsigned int flags)
770{ 845{
771 if (!method) 846 if (!backend)
772 { 847 {
773#if EV_USE_MONOTONIC 848#if EV_USE_MONOTONIC
774 { 849 {
775 struct timespec ts; 850 struct timespec ts;
776 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 851 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
781 ev_rt_now = ev_time (); 856 ev_rt_now = ev_time ();
782 mn_now = get_clock (); 857 mn_now = get_clock ();
783 now_floor = mn_now; 858 now_floor = mn_now;
784 rtmn_diff = ev_rt_now - mn_now; 859 rtmn_diff = ev_rt_now - mn_now;
785 860
786 if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 861 if (!(flags & EVFLAG_NOENV)
862 && !enable_secure ()
863 && getenv ("LIBEV_FLAGS"))
787 flags = atoi (getenv ("LIBEV_FLAGS")); 864 flags = atoi (getenv ("LIBEV_FLAGS"));
788 865
789 if (!(flags & 0x0000ffff)) 866 if (!(flags & 0x0000ffffUL))
790 flags |= 0x0000ffff; 867 flags |= ev_recommended_backends ();
791 868
792 method = 0; 869 backend = 0;
793#if EV_USE_PORT 870#if EV_USE_PORT
794 if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); 871 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
795#endif 872#endif
796#if EV_USE_KQUEUE 873#if EV_USE_KQUEUE
797 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 874 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
798#endif 875#endif
799#if EV_USE_EPOLL 876#if EV_USE_EPOLL
800 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 877 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
801#endif 878#endif
802#if EV_USE_POLL 879#if EV_USE_POLL
803 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 880 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
804#endif 881#endif
805#if EV_USE_SELECT 882#if EV_USE_SELECT
806 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 883 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
807#endif 884#endif
808 885
809 ev_init (&sigev, sigcb); 886 ev_init (&sigev, sigcb);
810 ev_set_priority (&sigev, EV_MAXPRI); 887 ev_set_priority (&sigev, EV_MAXPRI);
811 } 888 }
… …
815loop_destroy (EV_P) 892loop_destroy (EV_P)
816{ 893{
817 int i; 894 int i;
818 895
819#if EV_USE_PORT 896#if EV_USE_PORT
820 if (method == EVMETHOD_PORT ) port_destroy (EV_A); 897 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
821#endif 898#endif
822#if EV_USE_KQUEUE 899#if EV_USE_KQUEUE
823 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 900 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
824#endif 901#endif
825#if EV_USE_EPOLL 902#if EV_USE_EPOLL
826 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 903 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
827#endif 904#endif
828#if EV_USE_POLL 905#if EV_USE_POLL
829 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 906 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
830#endif 907#endif
831#if EV_USE_SELECT 908#if EV_USE_SELECT
832 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 909 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
833#endif 910#endif
834 911
835 for (i = NUMPRI; i--; ) 912 for (i = NUMPRI; i--; )
836 array_free (pending, [i]); 913 array_free (pending, [i]);
837 914
838 /* have to use the microsoft-never-gets-it-right macro */ 915 /* have to use the microsoft-never-gets-it-right macro */
839 array_free (fdchange, EMPTY0); 916 array_free (fdchange, EMPTY0);
840 array_free (timer, EMPTY0); 917 array_free (timer, EMPTY0);
841#if EV_PERIODICS 918#if EV_PERIODIC_ENABLE
842 array_free (periodic, EMPTY0); 919 array_free (periodic, EMPTY0);
843#endif 920#endif
844 array_free (idle, EMPTY0); 921 array_free (idle, EMPTY0);
845 array_free (prepare, EMPTY0); 922 array_free (prepare, EMPTY0);
846 array_free (check, EMPTY0); 923 array_free (check, EMPTY0);
847 924
848 method = 0; 925 backend = 0;
849} 926}
850 927
851static void 928static void
852loop_fork (EV_P) 929loop_fork (EV_P)
853{ 930{
854#if EV_USE_PORT 931#if EV_USE_PORT
855 if (method == EVMETHOD_PORT ) port_fork (EV_A); 932 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
856#endif 933#endif
857#if EV_USE_KQUEUE 934#if EV_USE_KQUEUE
858 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 935 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
859#endif 936#endif
860#if EV_USE_EPOLL 937#if EV_USE_EPOLL
861 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 938 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
862#endif 939#endif
863 940
864 if (ev_is_active (&sigev)) 941 if (ev_is_active (&sigev))
865 { 942 {
866 /* default loop */ 943 /* default loop */
… …
887 964
888 memset (loop, 0, sizeof (struct ev_loop)); 965 memset (loop, 0, sizeof (struct ev_loop));
889 966
890 loop_init (EV_A_ flags); 967 loop_init (EV_A_ flags);
891 968
892 if (ev_method (EV_A)) 969 if (ev_backend (EV_A))
893 return loop; 970 return loop;
894 971
895 return 0; 972 return 0;
896} 973}
897 974
… …
910 987
911#endif 988#endif
912 989
913#if EV_MULTIPLICITY 990#if EV_MULTIPLICITY
914struct ev_loop * 991struct ev_loop *
915ev_default_loop_ (unsigned int flags) 992ev_default_loop_init (unsigned int flags)
916#else 993#else
917int 994int
918ev_default_loop (unsigned int flags) 995ev_default_loop (unsigned int flags)
919#endif 996#endif
920{ 997{
… …
930 ev_default_loop_ptr = 1; 1007 ev_default_loop_ptr = 1;
931#endif 1008#endif
932 1009
933 loop_init (EV_A_ flags); 1010 loop_init (EV_A_ flags);
934 1011
935 if (ev_method (EV_A)) 1012 if (ev_backend (EV_A))
936 { 1013 {
937 siginit (EV_A); 1014 siginit (EV_A);
938 1015
939#ifndef _WIN32 1016#ifndef _WIN32
940 ev_signal_init (&childev, childcb, SIGCHLD); 1017 ev_signal_init (&childev, childcb, SIGCHLD);
… …
976{ 1053{
977#if EV_MULTIPLICITY 1054#if EV_MULTIPLICITY
978 struct ev_loop *loop = ev_default_loop_ptr; 1055 struct ev_loop *loop = ev_default_loop_ptr;
979#endif 1056#endif
980 1057
981 if (method) 1058 if (backend)
982 postfork = 1; 1059 postfork = 1;
983} 1060}
984 1061
985/*****************************************************************************/ 1062/*****************************************************************************/
986 1063
987static int 1064int inline_size
988any_pending (EV_P) 1065any_pending (EV_P)
989{ 1066{
990 int pri; 1067 int pri;
991 1068
992 for (pri = NUMPRI; pri--; ) 1069 for (pri = NUMPRI; pri--; )
… …
994 return 1; 1071 return 1;
995 1072
996 return 0; 1073 return 0;
997} 1074}
998 1075
999inline void 1076void inline_speed
1000call_pending (EV_P) 1077call_pending (EV_P)
1001{ 1078{
1002 int pri; 1079 int pri;
1003 1080
1004 for (pri = NUMPRI; pri--; ) 1081 for (pri = NUMPRI; pri--; )
… …
1006 { 1083 {
1007 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1084 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1008 1085
1009 if (expect_true (p->w)) 1086 if (expect_true (p->w))
1010 { 1087 {
1088 assert (("non-pending watcher on pending list", p->w->pending));
1089
1011 p->w->pending = 0; 1090 p->w->pending = 0;
1012 EV_CB_INVOKE (p->w, p->events); 1091 EV_CB_INVOKE (p->w, p->events);
1013 } 1092 }
1014 } 1093 }
1015} 1094}
1016 1095
1017inline void 1096void inline_size
1018timers_reify (EV_P) 1097timers_reify (EV_P)
1019{ 1098{
1020 while (timercnt && ((WT)timers [0])->at <= mn_now) 1099 while (timercnt && ((WT)timers [0])->at <= mn_now)
1021 { 1100 {
1022 struct ev_timer *w = timers [0]; 1101 ev_timer *w = timers [0];
1023 1102
1024 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1103 assert (("inactive timer on timer heap detected", ev_is_active (w)));
1025 1104
1026 /* first reschedule or stop timer */ 1105 /* first reschedule or stop timer */
1027 if (w->repeat) 1106 if (w->repeat)
… …
1039 1118
1040 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1119 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1041 } 1120 }
1042} 1121}
1043 1122
1044#if EV_PERIODICS 1123#if EV_PERIODIC_ENABLE
1045inline void 1124void inline_size
1046periodics_reify (EV_P) 1125periodics_reify (EV_P)
1047{ 1126{
1048 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1127 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1049 { 1128 {
1050 struct ev_periodic *w = periodics [0]; 1129 ev_periodic *w = periodics [0];
1051 1130
1052 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1131 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1053 1132
1054 /* first reschedule or stop timer */ 1133 /* first reschedule or stop timer */
1055 if (w->reschedule_cb) 1134 if (w->reschedule_cb)
… …
1069 1148
1070 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1149 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1071 } 1150 }
1072} 1151}
1073 1152
1074static void 1153static void noinline
1075periodics_reschedule (EV_P) 1154periodics_reschedule (EV_P)
1076{ 1155{
1077 int i; 1156 int i;
1078 1157
1079 /* adjust periodics after time jump */ 1158 /* adjust periodics after time jump */
1080 for (i = 0; i < periodiccnt; ++i) 1159 for (i = 0; i < periodiccnt; ++i)
1081 { 1160 {
1082 struct ev_periodic *w = periodics [i]; 1161 ev_periodic *w = periodics [i];
1083 1162
1084 if (w->reschedule_cb) 1163 if (w->reschedule_cb)
1085 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1164 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1086 else if (w->interval) 1165 else if (w->interval)
1087 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1166 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
… …
1091 for (i = periodiccnt >> 1; i--; ) 1170 for (i = periodiccnt >> 1; i--; )
1092 downheap ((WT *)periodics, periodiccnt, i); 1171 downheap ((WT *)periodics, periodiccnt, i);
1093} 1172}
1094#endif 1173#endif
1095 1174
1096inline int 1175int inline_size
1097time_update_monotonic (EV_P) 1176time_update_monotonic (EV_P)
1098{ 1177{
1099 mn_now = get_clock (); 1178 mn_now = get_clock ();
1100 1179
1101 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1180 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
… …
1109 ev_rt_now = ev_time (); 1188 ev_rt_now = ev_time ();
1110 return 1; 1189 return 1;
1111 } 1190 }
1112} 1191}
1113 1192
1114inline void 1193void inline_size
1115time_update (EV_P) 1194time_update (EV_P)
1116{ 1195{
1117 int i; 1196 int i;
1118 1197
1119#if EV_USE_MONOTONIC 1198#if EV_USE_MONOTONIC
… …
1121 { 1200 {
1122 if (time_update_monotonic (EV_A)) 1201 if (time_update_monotonic (EV_A))
1123 { 1202 {
1124 ev_tstamp odiff = rtmn_diff; 1203 ev_tstamp odiff = rtmn_diff;
1125 1204
1126 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1205 /* loop a few times, before making important decisions.
1206 * on the choice of "4": one iteration isn't enough,
1207 * in case we get preempted during the calls to
1208 * ev_time and get_clock. a second call is almost guarenteed
1209 * to succeed in that case, though. and looping a few more times
1210 * doesn't hurt either as we only do this on time-jumps or
1211 * in the unlikely event of getting preempted here.
1212 */
1213 for (i = 4; --i; )
1127 { 1214 {
1128 rtmn_diff = ev_rt_now - mn_now; 1215 rtmn_diff = ev_rt_now - mn_now;
1129 1216
1130 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1217 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1131 return; /* all is well */ 1218 return; /* all is well */
… …
1133 ev_rt_now = ev_time (); 1220 ev_rt_now = ev_time ();
1134 mn_now = get_clock (); 1221 mn_now = get_clock ();
1135 now_floor = mn_now; 1222 now_floor = mn_now;
1136 } 1223 }
1137 1224
1138# if EV_PERIODICS 1225# if EV_PERIODIC_ENABLE
1139 periodics_reschedule (EV_A); 1226 periodics_reschedule (EV_A);
1140# endif 1227# endif
1141 /* no timer adjustment, as the monotonic clock doesn't jump */ 1228 /* no timer adjustment, as the monotonic clock doesn't jump */
1142 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1229 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1143 } 1230 }
… …
1147 { 1234 {
1148 ev_rt_now = ev_time (); 1235 ev_rt_now = ev_time ();
1149 1236
1150 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1237 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1151 { 1238 {
1152#if EV_PERIODICS 1239#if EV_PERIODIC_ENABLE
1153 periodics_reschedule (EV_A); 1240 periodics_reschedule (EV_A);
1154#endif 1241#endif
1155 1242
1156 /* adjust timers. this is easy, as the offset is the same for all */ 1243 /* adjust timers. this is easy, as the offset is the same for all */
1157 for (i = 0; i < timercnt; ++i) 1244 for (i = 0; i < timercnt; ++i)
… …
1177static int loop_done; 1264static int loop_done;
1178 1265
1179void 1266void
1180ev_loop (EV_P_ int flags) 1267ev_loop (EV_P_ int flags)
1181{ 1268{
1182 double block;
1183 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1269 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1270 ? EVUNLOOP_ONE
1271 : EVUNLOOP_CANCEL;
1184 1272
1185 while (activecnt) 1273 while (activecnt)
1186 { 1274 {
1187 /* queue check watchers (and execute them) */ 1275 /* queue check watchers (and execute them) */
1188 if (expect_false (preparecnt)) 1276 if (expect_false (preparecnt))
… …
1197 1285
1198 /* update fd-related kernel structures */ 1286 /* update fd-related kernel structures */
1199 fd_reify (EV_A); 1287 fd_reify (EV_A);
1200 1288
1201 /* calculate blocking time */ 1289 /* calculate blocking time */
1290 {
1291 double block;
1202 1292
1203 /* we only need this for !monotonic clock or timers, but as we basically 1293 if (flags & EVLOOP_NONBLOCK || idlecnt)
1204 always have timers, we just calculate it always */ 1294 block = 0.; /* do not block at all */
1295 else
1296 {
1297 /* update time to cancel out callback processing overhead */
1205#if EV_USE_MONOTONIC 1298#if EV_USE_MONOTONIC
1206 if (expect_true (have_monotonic)) 1299 if (expect_true (have_monotonic))
1207 time_update_monotonic (EV_A); 1300 time_update_monotonic (EV_A);
1208 else 1301 else
1209#endif 1302#endif
1210 { 1303 {
1211 ev_rt_now = ev_time (); 1304 ev_rt_now = ev_time ();
1212 mn_now = ev_rt_now; 1305 mn_now = ev_rt_now;
1213 } 1306 }
1214 1307
1215 if (flags & EVLOOP_NONBLOCK || idlecnt)
1216 block = 0.;
1217 else
1218 {
1219 block = MAX_BLOCKTIME; 1308 block = MAX_BLOCKTIME;
1220 1309
1221 if (timercnt) 1310 if (timercnt)
1222 { 1311 {
1223 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1312 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1224 if (block > to) block = to; 1313 if (block > to) block = to;
1225 } 1314 }
1226 1315
1227#if EV_PERIODICS 1316#if EV_PERIODIC_ENABLE
1228 if (periodiccnt) 1317 if (periodiccnt)
1229 { 1318 {
1230 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1319 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1231 if (block > to) block = to; 1320 if (block > to) block = to;
1232 } 1321 }
1233#endif 1322#endif
1234 1323
1235 if (expect_false (block < 0.)) block = 0.; 1324 if (expect_false (block < 0.)) block = 0.;
1236 } 1325 }
1237 1326
1238 method_poll (EV_A_ block); 1327 backend_poll (EV_A_ block);
1328 }
1239 1329
1240 /* update ev_rt_now, do magic */ 1330 /* update ev_rt_now, do magic */
1241 time_update (EV_A); 1331 time_update (EV_A);
1242 1332
1243 /* queue pending timers and reschedule them */ 1333 /* queue pending timers and reschedule them */
1244 timers_reify (EV_A); /* relative timers called last */ 1334 timers_reify (EV_A); /* relative timers called last */
1245#if EV_PERIODICS 1335#if EV_PERIODIC_ENABLE
1246 periodics_reify (EV_A); /* absolute timers called first */ 1336 periodics_reify (EV_A); /* absolute timers called first */
1247#endif 1337#endif
1248 1338
1249 /* queue idle watchers unless io or timers are pending */ 1339 /* queue idle watchers unless other events are pending */
1250 if (idlecnt && !any_pending (EV_A)) 1340 if (idlecnt && !any_pending (EV_A))
1251 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1341 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1252 1342
1253 /* queue check watchers, to be executed first */ 1343 /* queue check watchers, to be executed first */
1254 if (expect_false (checkcnt)) 1344 if (expect_false (checkcnt))
… …
1258 1348
1259 if (expect_false (loop_done)) 1349 if (expect_false (loop_done))
1260 break; 1350 break;
1261 } 1351 }
1262 1352
1263 if (loop_done != 2) 1353 if (loop_done == EVUNLOOP_ONE)
1264 loop_done = 0; 1354 loop_done = EVUNLOOP_CANCEL;
1265} 1355}
1266 1356
1267void 1357void
1268ev_unloop (EV_P_ int how) 1358ev_unloop (EV_P_ int how)
1269{ 1359{
1270 loop_done = how; 1360 loop_done = how;
1271} 1361}
1272 1362
1273/*****************************************************************************/ 1363/*****************************************************************************/
1274 1364
1275inline void 1365void inline_size
1276wlist_add (WL *head, WL elem) 1366wlist_add (WL *head, WL elem)
1277{ 1367{
1278 elem->next = *head; 1368 elem->next = *head;
1279 *head = elem; 1369 *head = elem;
1280} 1370}
1281 1371
1282inline void 1372void inline_size
1283wlist_del (WL *head, WL elem) 1373wlist_del (WL *head, WL elem)
1284{ 1374{
1285 while (*head) 1375 while (*head)
1286 { 1376 {
1287 if (*head == elem) 1377 if (*head == elem)
… …
1292 1382
1293 head = &(*head)->next; 1383 head = &(*head)->next;
1294 } 1384 }
1295} 1385}
1296 1386
1297inline void 1387void inline_speed
1298ev_clear_pending (EV_P_ W w) 1388ev_clear_pending (EV_P_ W w)
1299{ 1389{
1300 if (w->pending) 1390 if (w->pending)
1301 { 1391 {
1302 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1392 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1303 w->pending = 0; 1393 w->pending = 0;
1304 } 1394 }
1305} 1395}
1306 1396
1307inline void 1397void inline_speed
1308ev_start (EV_P_ W w, int active) 1398ev_start (EV_P_ W w, int active)
1309{ 1399{
1310 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1400 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1311 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1401 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1312 1402
1313 w->active = active; 1403 w->active = active;
1314 ev_ref (EV_A); 1404 ev_ref (EV_A);
1315} 1405}
1316 1406
1317inline void 1407void inline_size
1318ev_stop (EV_P_ W w) 1408ev_stop (EV_P_ W w)
1319{ 1409{
1320 ev_unref (EV_A); 1410 ev_unref (EV_A);
1321 w->active = 0; 1411 w->active = 0;
1322} 1412}
1323 1413
1324/*****************************************************************************/ 1414/*****************************************************************************/
1325 1415
1326void 1416void
1327ev_io_start (EV_P_ struct ev_io *w) 1417ev_io_start (EV_P_ ev_io *w)
1328{ 1418{
1329 int fd = w->fd; 1419 int fd = w->fd;
1330 1420
1331 if (expect_false (ev_is_active (w))) 1421 if (expect_false (ev_is_active (w)))
1332 return; 1422 return;
… …
1339 1429
1340 fd_change (EV_A_ fd); 1430 fd_change (EV_A_ fd);
1341} 1431}
1342 1432
1343void 1433void
1344ev_io_stop (EV_P_ struct ev_io *w) 1434ev_io_stop (EV_P_ ev_io *w)
1345{ 1435{
1346 ev_clear_pending (EV_A_ (W)w); 1436 ev_clear_pending (EV_A_ (W)w);
1347 if (expect_false (!ev_is_active (w))) 1437 if (expect_false (!ev_is_active (w)))
1348 return; 1438 return;
1349 1439
… …
1354 1444
1355 fd_change (EV_A_ w->fd); 1445 fd_change (EV_A_ w->fd);
1356} 1446}
1357 1447
1358void 1448void
1359ev_timer_start (EV_P_ struct ev_timer *w) 1449ev_timer_start (EV_P_ ev_timer *w)
1360{ 1450{
1361 if (expect_false (ev_is_active (w))) 1451 if (expect_false (ev_is_active (w)))
1362 return; 1452 return;
1363 1453
1364 ((WT)w)->at += mn_now; 1454 ((WT)w)->at += mn_now;
1365 1455
1366 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1456 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1367 1457
1368 ev_start (EV_A_ (W)w, ++timercnt); 1458 ev_start (EV_A_ (W)w, ++timercnt);
1369 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1459 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1370 timers [timercnt - 1] = w; 1460 timers [timercnt - 1] = w;
1371 upheap ((WT *)timers, timercnt - 1); 1461 upheap ((WT *)timers, timercnt - 1);
1372 1462
1373 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1463 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1374} 1464}
1375 1465
1376void 1466void
1377ev_timer_stop (EV_P_ struct ev_timer *w) 1467ev_timer_stop (EV_P_ ev_timer *w)
1378{ 1468{
1379 ev_clear_pending (EV_A_ (W)w); 1469 ev_clear_pending (EV_A_ (W)w);
1380 if (expect_false (!ev_is_active (w))) 1470 if (expect_false (!ev_is_active (w)))
1381 return; 1471 return;
1382 1472
… …
1392 1482
1393 ev_stop (EV_A_ (W)w); 1483 ev_stop (EV_A_ (W)w);
1394} 1484}
1395 1485
1396void 1486void
1397ev_timer_again (EV_P_ struct ev_timer *w) 1487ev_timer_again (EV_P_ ev_timer *w)
1398{ 1488{
1399 if (ev_is_active (w)) 1489 if (ev_is_active (w))
1400 { 1490 {
1401 if (w->repeat) 1491 if (w->repeat)
1402 { 1492 {
… …
1411 w->at = w->repeat; 1501 w->at = w->repeat;
1412 ev_timer_start (EV_A_ w); 1502 ev_timer_start (EV_A_ w);
1413 } 1503 }
1414} 1504}
1415 1505
1416#if EV_PERIODICS 1506#if EV_PERIODIC_ENABLE
1417void 1507void
1418ev_periodic_start (EV_P_ struct ev_periodic *w) 1508ev_periodic_start (EV_P_ ev_periodic *w)
1419{ 1509{
1420 if (expect_false (ev_is_active (w))) 1510 if (expect_false (ev_is_active (w)))
1421 return; 1511 return;
1422 1512
1423 if (w->reschedule_cb) 1513 if (w->reschedule_cb)
… …
1428 /* this formula differs from the one in periodic_reify because we do not always round up */ 1518 /* this formula differs from the one in periodic_reify because we do not always round up */
1429 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1519 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1430 } 1520 }
1431 1521
1432 ev_start (EV_A_ (W)w, ++periodiccnt); 1522 ev_start (EV_A_ (W)w, ++periodiccnt);
1433 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1523 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1434 periodics [periodiccnt - 1] = w; 1524 periodics [periodiccnt - 1] = w;
1435 upheap ((WT *)periodics, periodiccnt - 1); 1525 upheap ((WT *)periodics, periodiccnt - 1);
1436 1526
1437 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1527 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1438} 1528}
1439 1529
1440void 1530void
1441ev_periodic_stop (EV_P_ struct ev_periodic *w) 1531ev_periodic_stop (EV_P_ ev_periodic *w)
1442{ 1532{
1443 ev_clear_pending (EV_A_ (W)w); 1533 ev_clear_pending (EV_A_ (W)w);
1444 if (expect_false (!ev_is_active (w))) 1534 if (expect_false (!ev_is_active (w)))
1445 return; 1535 return;
1446 1536
… …
1454 1544
1455 ev_stop (EV_A_ (W)w); 1545 ev_stop (EV_A_ (W)w);
1456} 1546}
1457 1547
1458void 1548void
1459ev_periodic_again (EV_P_ struct ev_periodic *w) 1549ev_periodic_again (EV_P_ ev_periodic *w)
1460{ 1550{
1461 /* TODO: use adjustheap and recalculation */ 1551 /* TODO: use adjustheap and recalculation */
1462 ev_periodic_stop (EV_A_ w); 1552 ev_periodic_stop (EV_A_ w);
1463 ev_periodic_start (EV_A_ w); 1553 ev_periodic_start (EV_A_ w);
1464} 1554}
1465#endif 1555#endif
1466 1556
1467void 1557void
1468ev_idle_start (EV_P_ struct ev_idle *w) 1558ev_idle_start (EV_P_ ev_idle *w)
1469{ 1559{
1470 if (expect_false (ev_is_active (w))) 1560 if (expect_false (ev_is_active (w)))
1471 return; 1561 return;
1472 1562
1473 ev_start (EV_A_ (W)w, ++idlecnt); 1563 ev_start (EV_A_ (W)w, ++idlecnt);
1474 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); 1564 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1475 idles [idlecnt - 1] = w; 1565 idles [idlecnt - 1] = w;
1476} 1566}
1477 1567
1478void 1568void
1479ev_idle_stop (EV_P_ struct ev_idle *w) 1569ev_idle_stop (EV_P_ ev_idle *w)
1480{ 1570{
1481 ev_clear_pending (EV_A_ (W)w); 1571 ev_clear_pending (EV_A_ (W)w);
1482 if (expect_false (!ev_is_active (w))) 1572 if (expect_false (!ev_is_active (w)))
1483 return; 1573 return;
1484 1574
1575 {
1576 int active = ((W)w)->active;
1485 idles [((W)w)->active - 1] = idles [--idlecnt]; 1577 idles [active - 1] = idles [--idlecnt];
1578 ((W)idles [active - 1])->active = active;
1579 }
1580
1486 ev_stop (EV_A_ (W)w); 1581 ev_stop (EV_A_ (W)w);
1487} 1582}
1488 1583
1489void 1584void
1490ev_prepare_start (EV_P_ struct ev_prepare *w) 1585ev_prepare_start (EV_P_ ev_prepare *w)
1491{ 1586{
1492 if (expect_false (ev_is_active (w))) 1587 if (expect_false (ev_is_active (w)))
1493 return; 1588 return;
1494 1589
1495 ev_start (EV_A_ (W)w, ++preparecnt); 1590 ev_start (EV_A_ (W)w, ++preparecnt);
1496 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 1591 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1497 prepares [preparecnt - 1] = w; 1592 prepares [preparecnt - 1] = w;
1498} 1593}
1499 1594
1500void 1595void
1501ev_prepare_stop (EV_P_ struct ev_prepare *w) 1596ev_prepare_stop (EV_P_ ev_prepare *w)
1502{ 1597{
1503 ev_clear_pending (EV_A_ (W)w); 1598 ev_clear_pending (EV_A_ (W)w);
1504 if (expect_false (!ev_is_active (w))) 1599 if (expect_false (!ev_is_active (w)))
1505 return; 1600 return;
1506 1601
1602 {
1603 int active = ((W)w)->active;
1507 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1604 prepares [active - 1] = prepares [--preparecnt];
1605 ((W)prepares [active - 1])->active = active;
1606 }
1607
1508 ev_stop (EV_A_ (W)w); 1608 ev_stop (EV_A_ (W)w);
1509} 1609}
1510 1610
1511void 1611void
1512ev_check_start (EV_P_ struct ev_check *w) 1612ev_check_start (EV_P_ ev_check *w)
1513{ 1613{
1514 if (expect_false (ev_is_active (w))) 1614 if (expect_false (ev_is_active (w)))
1515 return; 1615 return;
1516 1616
1517 ev_start (EV_A_ (W)w, ++checkcnt); 1617 ev_start (EV_A_ (W)w, ++checkcnt);
1518 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); 1618 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1519 checks [checkcnt - 1] = w; 1619 checks [checkcnt - 1] = w;
1520} 1620}
1521 1621
1522void 1622void
1523ev_check_stop (EV_P_ struct ev_check *w) 1623ev_check_stop (EV_P_ ev_check *w)
1524{ 1624{
1525 ev_clear_pending (EV_A_ (W)w); 1625 ev_clear_pending (EV_A_ (W)w);
1526 if (expect_false (!ev_is_active (w))) 1626 if (expect_false (!ev_is_active (w)))
1527 return; 1627 return;
1528 1628
1629 {
1630 int active = ((W)w)->active;
1529 checks [((W)w)->active - 1] = checks [--checkcnt]; 1631 checks [active - 1] = checks [--checkcnt];
1632 ((W)checks [active - 1])->active = active;
1633 }
1634
1530 ev_stop (EV_A_ (W)w); 1635 ev_stop (EV_A_ (W)w);
1531} 1636}
1532 1637
1533#ifndef SA_RESTART 1638#ifndef SA_RESTART
1534# define SA_RESTART 0 1639# define SA_RESTART 0
1535#endif 1640#endif
1536 1641
1537void 1642void
1538ev_signal_start (EV_P_ struct ev_signal *w) 1643ev_signal_start (EV_P_ ev_signal *w)
1539{ 1644{
1540#if EV_MULTIPLICITY 1645#if EV_MULTIPLICITY
1541 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1646 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1542#endif 1647#endif
1543 if (expect_false (ev_is_active (w))) 1648 if (expect_false (ev_is_active (w)))
… …
1562#endif 1667#endif
1563 } 1668 }
1564} 1669}
1565 1670
1566void 1671void
1567ev_signal_stop (EV_P_ struct ev_signal *w) 1672ev_signal_stop (EV_P_ ev_signal *w)
1568{ 1673{
1569 ev_clear_pending (EV_A_ (W)w); 1674 ev_clear_pending (EV_A_ (W)w);
1570 if (expect_false (!ev_is_active (w))) 1675 if (expect_false (!ev_is_active (w)))
1571 return; 1676 return;
1572 1677
… …
1576 if (!signals [w->signum - 1].head) 1681 if (!signals [w->signum - 1].head)
1577 signal (w->signum, SIG_DFL); 1682 signal (w->signum, SIG_DFL);
1578} 1683}
1579 1684
1580void 1685void
1581ev_child_start (EV_P_ struct ev_child *w) 1686ev_child_start (EV_P_ ev_child *w)
1582{ 1687{
1583#if EV_MULTIPLICITY 1688#if EV_MULTIPLICITY
1584 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1689 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1585#endif 1690#endif
1586 if (expect_false (ev_is_active (w))) 1691 if (expect_false (ev_is_active (w)))
… …
1589 ev_start (EV_A_ (W)w, 1); 1694 ev_start (EV_A_ (W)w, 1);
1590 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1695 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1591} 1696}
1592 1697
1593void 1698void
1594ev_child_stop (EV_P_ struct ev_child *w) 1699ev_child_stop (EV_P_ ev_child *w)
1595{ 1700{
1596 ev_clear_pending (EV_A_ (W)w); 1701 ev_clear_pending (EV_A_ (W)w);
1597 if (expect_false (!ev_is_active (w))) 1702 if (expect_false (!ev_is_active (w)))
1598 return; 1703 return;
1599 1704
1600 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1705 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1601 ev_stop (EV_A_ (W)w); 1706 ev_stop (EV_A_ (W)w);
1602} 1707}
1603 1708
1709#if EV_EMBED_ENABLE
1710void noinline
1711ev_embed_sweep (EV_P_ ev_embed *w)
1712{
1713 ev_loop (w->loop, EVLOOP_NONBLOCK);
1714}
1715
1716static void
1717embed_cb (EV_P_ ev_io *io, int revents)
1718{
1719 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1720
1721 if (ev_cb (w))
1722 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1723 else
1724 ev_embed_sweep (loop, w);
1725}
1726
1727void
1728ev_embed_start (EV_P_ ev_embed *w)
1729{
1730 if (expect_false (ev_is_active (w)))
1731 return;
1732
1733 {
1734 struct ev_loop *loop = w->loop;
1735 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1736 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1737 }
1738
1739 ev_set_priority (&w->io, ev_priority (w));
1740 ev_io_start (EV_A_ &w->io);
1741
1742 ev_start (EV_A_ (W)w, 1);
1743}
1744
1745void
1746ev_embed_stop (EV_P_ ev_embed *w)
1747{
1748 ev_clear_pending (EV_A_ (W)w);
1749 if (expect_false (!ev_is_active (w)))
1750 return;
1751
1752 ev_io_stop (EV_A_ &w->io);
1753
1754 ev_stop (EV_A_ (W)w);
1755}
1756#endif
1757
1758#if EV_STAT_ENABLE
1759
1760# ifdef _WIN32
1761# define lstat(a,b) stat(a,b)
1762# endif
1763
1764void
1765ev_stat_stat (EV_P_ ev_stat *w)
1766{
1767 if (lstat (w->path, &w->attr) < 0)
1768 w->attr.st_nlink = 0;
1769 else if (!w->attr.st_nlink)
1770 w->attr.st_nlink = 1;
1771}
1772
1773static void
1774stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1775{
1776 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1777
1778 /* we copy this here each the time so that */
1779 /* prev has the old value when the callback gets invoked */
1780 w->prev = w->attr;
1781 ev_stat_stat (EV_A_ w);
1782
1783 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1784 ev_feed_event (EV_A_ w, EV_STAT);
1785}
1786
1787void
1788ev_stat_start (EV_P_ ev_stat *w)
1789{
1790 if (expect_false (ev_is_active (w)))
1791 return;
1792
1793 /* since we use memcmp, we need to clear any padding data etc. */
1794 memset (&w->prev, 0, sizeof (ev_statdata));
1795 memset (&w->attr, 0, sizeof (ev_statdata));
1796
1797 ev_stat_stat (EV_A_ w);
1798
1799 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1800 ev_set_priority (&w->timer, ev_priority (w));
1801 ev_timer_start (EV_A_ &w->timer);
1802
1803 ev_start (EV_A_ (W)w, 1);
1804}
1805
1806void
1807ev_stat_stop (EV_P_ ev_stat *w)
1808{
1809 ev_clear_pending (EV_A_ (W)w);
1810 if (expect_false (!ev_is_active (w)))
1811 return;
1812
1813 ev_timer_stop (EV_A_ &w->timer);
1814
1815 ev_stop (EV_A_ (W)w);
1816}
1817#endif
1818
1604/*****************************************************************************/ 1819/*****************************************************************************/
1605 1820
1606struct ev_once 1821struct ev_once
1607{ 1822{
1608 struct ev_io io; 1823 ev_io io;
1609 struct ev_timer to; 1824 ev_timer to;
1610 void (*cb)(int revents, void *arg); 1825 void (*cb)(int revents, void *arg);
1611 void *arg; 1826 void *arg;
1612}; 1827};
1613 1828
1614static void 1829static void
… …
1623 1838
1624 cb (revents, arg); 1839 cb (revents, arg);
1625} 1840}
1626 1841
1627static void 1842static void
1628once_cb_io (EV_P_ struct ev_io *w, int revents) 1843once_cb_io (EV_P_ ev_io *w, int revents)
1629{ 1844{
1630 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 1845 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1631} 1846}
1632 1847
1633static void 1848static void
1634once_cb_to (EV_P_ struct ev_timer *w, int revents) 1849once_cb_to (EV_P_ ev_timer *w, int revents)
1635{ 1850{
1636 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 1851 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1637} 1852}
1638 1853
1639void 1854void

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