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Comparing libev/ev.c (file contents):
Revision 1.134 by root, Fri Nov 23 19:13:33 2007 UTC vs.
Revision 1.143 by root, Tue Nov 27 07:27:10 2007 UTC

… …
111#include <time.h> 111#include <time.h>
112 112
113#include <signal.h> 113#include <signal.h>
114 114
115#ifndef _WIN32 115#ifndef _WIN32
116# include <unistd.h>
117# include <sys/time.h> 116# include <sys/time.h>
118# include <sys/wait.h> 117# include <sys/wait.h>
118# include <unistd.h>
119#else 119#else
120# define WIN32_LEAN_AND_MEAN 120# define WIN32_LEAN_AND_MEAN
121# include <windows.h> 121# include <windows.h>
122# ifndef EV_SELECT_IS_WINSOCKET 122# ifndef EV_SELECT_IS_WINSOCKET
123# define EV_SELECT_IS_WINSOCKET 1 123# define EV_SELECT_IS_WINSOCKET 1
… …
187# include "ev.h" 187# include "ev.h"
188#endif 188#endif
189 189
190#if __GNUC__ >= 3 190#if __GNUC__ >= 3
191# 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
192# define inline static inline 198# define inline_speed static inline
199# endif
193#else 200#else
194# define expect(expr,value) (expr) 201# define expect(expr,value) (expr)
195# define inline static 202# define inline_speed static
203# define inline_minimal static
204# define noinline
196#endif 205#endif
197 206
198#define expect_false(expr) expect ((expr) != 0, 0) 207#define expect_false(expr) expect ((expr) != 0, 0)
199#define expect_true(expr) expect ((expr) != 0, 1) 208#define expect_true(expr) expect ((expr) != 0, 1)
200 209
… …
202#define ABSPRI(w) ((w)->priority - EV_MINPRI) 211#define ABSPRI(w) ((w)->priority - EV_MINPRI)
203 212
204#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 213#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
205#define EMPTY2(a,b) /* used to suppress some warnings */ 214#define EMPTY2(a,b) /* used to suppress some warnings */
206 215
207typedef struct ev_watcher *W; 216typedef ev_watcher *W;
208typedef struct ev_watcher_list *WL; 217typedef ev_watcher_list *WL;
209typedef struct ev_watcher_time *WT; 218typedef ev_watcher_time *WT;
210 219
211static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 220static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
212 221
213#ifdef _WIN32 222#ifdef _WIN32
214# include "ev_win32.c" 223# include "ev_win32.c"
… …
216 225
217/*****************************************************************************/ 226/*****************************************************************************/
218 227
219static void (*syserr_cb)(const char *msg); 228static void (*syserr_cb)(const char *msg);
220 229
230void
221void ev_set_syserr_cb (void (*cb)(const char *msg)) 231ev_set_syserr_cb (void (*cb)(const char *msg))
222{ 232{
223 syserr_cb = cb; 233 syserr_cb = cb;
224} 234}
225 235
226static void 236static void noinline
227syserr (const char *msg) 237syserr (const char *msg)
228{ 238{
229 if (!msg) 239 if (!msg)
230 msg = "(libev) system error"; 240 msg = "(libev) system error";
231 241
… …
238 } 248 }
239} 249}
240 250
241static void *(*alloc)(void *ptr, long size); 251static void *(*alloc)(void *ptr, long size);
242 252
253void
243void ev_set_allocator (void *(*cb)(void *ptr, long size)) 254ev_set_allocator (void *(*cb)(void *ptr, long size))
244{ 255{
245 alloc = cb; 256 alloc = cb;
246} 257}
247 258
248static void * 259static void *
… …
320 gettimeofday (&tv, 0); 331 gettimeofday (&tv, 0);
321 return tv.tv_sec + tv.tv_usec * 1e-6; 332 return tv.tv_sec + tv.tv_usec * 1e-6;
322#endif 333#endif
323} 334}
324 335
325inline ev_tstamp 336ev_tstamp inline_size
326get_clock (void) 337get_clock (void)
327{ 338{
328#if EV_USE_MONOTONIC 339#if EV_USE_MONOTONIC
329 if (expect_true (have_monotonic)) 340 if (expect_true (have_monotonic))
330 { 341 {
… …
373#define array_free(stem, idx) \ 384#define array_free(stem, idx) \
374 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 385 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
375 386
376/*****************************************************************************/ 387/*****************************************************************************/
377 388
378static void 389void noinline
379anfds_init (ANFD *base, int count)
380{
381 while (count--)
382 {
383 base->head = 0;
384 base->events = EV_NONE;
385 base->reify = 0;
386
387 ++base;
388 }
389}
390
391void
392ev_feed_event (EV_P_ void *w, int revents) 390ev_feed_event (EV_P_ void *w, int revents)
393{ 391{
394 W w_ = (W)w; 392 W w_ = (W)w;
395 393
396 if (expect_false (w_->pending)) 394 if (expect_false (w_->pending))
397 { 395 {
398 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; 396 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
399 return; 397 return;
400 } 398 }
401
402 if (expect_false (!w_->cb))
403 return;
404 399
405 w_->pending = ++pendingcnt [ABSPRI (w_)]; 400 w_->pending = ++pendingcnt [ABSPRI (w_)];
406 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); 401 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
407 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 402 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
408 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 403 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
409} 404}
410 405
411static void 406void inline_size
412queue_events (EV_P_ W *events, int eventcnt, int type) 407queue_events (EV_P_ W *events, int eventcnt, int type)
413{ 408{
414 int i; 409 int i;
415 410
416 for (i = 0; i < eventcnt; ++i) 411 for (i = 0; i < eventcnt; ++i)
417 ev_feed_event (EV_A_ events [i], type); 412 ev_feed_event (EV_A_ events [i], type);
418} 413}
419 414
420inline void 415/*****************************************************************************/
416
417void inline_size
418anfds_init (ANFD *base, int count)
419{
420 while (count--)
421 {
422 base->head = 0;
423 base->events = EV_NONE;
424 base->reify = 0;
425
426 ++base;
427 }
428}
429
430void inline_speed
421fd_event (EV_P_ int fd, int revents) 431fd_event (EV_P_ int fd, int revents)
422{ 432{
423 ANFD *anfd = anfds + fd; 433 ANFD *anfd = anfds + fd;
424 struct ev_io *w; 434 ev_io *w;
425 435
426 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 436 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
427 { 437 {
428 int ev = w->events & revents; 438 int ev = w->events & revents;
429 439
430 if (ev) 440 if (ev)
431 ev_feed_event (EV_A_ (W)w, ev); 441 ev_feed_event (EV_A_ (W)w, ev);
… …
436ev_feed_fd_event (EV_P_ int fd, int revents) 446ev_feed_fd_event (EV_P_ int fd, int revents)
437{ 447{
438 fd_event (EV_A_ fd, revents); 448 fd_event (EV_A_ fd, revents);
439} 449}
440 450
441/*****************************************************************************/ 451void inline_size
442
443inline void
444fd_reify (EV_P) 452fd_reify (EV_P)
445{ 453{
446 int i; 454 int i;
447 455
448 for (i = 0; i < fdchangecnt; ++i) 456 for (i = 0; i < fdchangecnt; ++i)
449 { 457 {
450 int fd = fdchanges [i]; 458 int fd = fdchanges [i];
451 ANFD *anfd = anfds + fd; 459 ANFD *anfd = anfds + fd;
452 struct ev_io *w; 460 ev_io *w;
453 461
454 int events = 0; 462 int events = 0;
455 463
456 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 464 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
457 events |= w->events; 465 events |= w->events;
458 466
459#if EV_SELECT_IS_WINSOCKET 467#if EV_SELECT_IS_WINSOCKET
460 if (events) 468 if (events)
461 { 469 {
… …
472 } 480 }
473 481
474 fdchangecnt = 0; 482 fdchangecnt = 0;
475} 483}
476 484
477static void 485void inline_size
478fd_change (EV_P_ int fd) 486fd_change (EV_P_ int fd)
479{ 487{
480 if (expect_false (anfds [fd].reify)) 488 if (expect_false (anfds [fd].reify))
481 return; 489 return;
482 490
… …
485 ++fdchangecnt; 493 ++fdchangecnt;
486 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 494 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
487 fdchanges [fdchangecnt - 1] = fd; 495 fdchanges [fdchangecnt - 1] = fd;
488} 496}
489 497
490static void 498void inline_speed
491fd_kill (EV_P_ int fd) 499fd_kill (EV_P_ int fd)
492{ 500{
493 struct ev_io *w; 501 ev_io *w;
494 502
495 while ((w = (struct ev_io *)anfds [fd].head)) 503 while ((w = (ev_io *)anfds [fd].head))
496 { 504 {
497 ev_io_stop (EV_A_ w); 505 ev_io_stop (EV_A_ w);
498 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 506 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
499 } 507 }
500} 508}
501 509
502inline int 510int inline_size
503fd_valid (int fd) 511fd_valid (int fd)
504{ 512{
505#ifdef _WIN32 513#ifdef _WIN32
506 return _get_osfhandle (fd) != -1; 514 return _get_osfhandle (fd) != -1;
507#else 515#else
508 return fcntl (fd, F_GETFD) != -1; 516 return fcntl (fd, F_GETFD) != -1;
509#endif 517#endif
510} 518}
511 519
512/* called on EBADF to verify fds */ 520/* called on EBADF to verify fds */
513static void 521static void noinline
514fd_ebadf (EV_P) 522fd_ebadf (EV_P)
515{ 523{
516 int fd; 524 int fd;
517 525
518 for (fd = 0; fd < anfdmax; ++fd) 526 for (fd = 0; fd < anfdmax; ++fd)
… …
520 if (!fd_valid (fd) == -1 && errno == EBADF) 528 if (!fd_valid (fd) == -1 && errno == EBADF)
521 fd_kill (EV_A_ fd); 529 fd_kill (EV_A_ fd);
522} 530}
523 531
524/* called on ENOMEM in select/poll to kill some fds and retry */ 532/* called on ENOMEM in select/poll to kill some fds and retry */
525static void 533static void noinline
526fd_enomem (EV_P) 534fd_enomem (EV_P)
527{ 535{
528 int fd; 536 int fd;
529 537
530 for (fd = anfdmax; fd--; ) 538 for (fd = anfdmax; fd--; )
… …
534 return; 542 return;
535 } 543 }
536} 544}
537 545
538/* usually called after fork if backend needs to re-arm all fds from scratch */ 546/* usually called after fork if backend needs to re-arm all fds from scratch */
539static void 547static void noinline
540fd_rearm_all (EV_P) 548fd_rearm_all (EV_P)
541{ 549{
542 int fd; 550 int fd;
543 551
544 /* this should be highly optimised to not do anything but set a flag */ 552 /* this should be highly optimised to not do anything but set a flag */
… …
550 } 558 }
551} 559}
552 560
553/*****************************************************************************/ 561/*****************************************************************************/
554 562
555static void 563void inline_speed
556upheap (WT *heap, int k) 564upheap (WT *heap, int k)
557{ 565{
558 WT w = heap [k]; 566 WT w = heap [k];
559 567
560 while (k && heap [k >> 1]->at > w->at) 568 while (k && heap [k >> 1]->at > w->at)
… …
567 heap [k] = w; 575 heap [k] = w;
568 ((W)heap [k])->active = k + 1; 576 ((W)heap [k])->active = k + 1;
569 577
570} 578}
571 579
572static void 580void inline_speed
573downheap (WT *heap, int N, int k) 581downheap (WT *heap, int N, int k)
574{ 582{
575 WT w = heap [k]; 583 WT w = heap [k];
576 584
577 while (k < (N >> 1)) 585 while (k < (N >> 1))
… …
591 599
592 heap [k] = w; 600 heap [k] = w;
593 ((W)heap [k])->active = k + 1; 601 ((W)heap [k])->active = k + 1;
594} 602}
595 603
596inline void 604void inline_size
597adjustheap (WT *heap, int N, int k) 605adjustheap (WT *heap, int N, int k)
598{ 606{
599 upheap (heap, k); 607 upheap (heap, k);
600 downheap (heap, N, k); 608 downheap (heap, N, k);
601} 609}
… …
611static ANSIG *signals; 619static ANSIG *signals;
612static int signalmax; 620static int signalmax;
613 621
614static int sigpipe [2]; 622static int sigpipe [2];
615static sig_atomic_t volatile gotsig; 623static sig_atomic_t volatile gotsig;
616static struct ev_io sigev; 624static ev_io sigev;
617 625
618static void 626void inline_size
619signals_init (ANSIG *base, int count) 627signals_init (ANSIG *base, int count)
620{ 628{
621 while (count--) 629 while (count--)
622 { 630 {
623 base->head = 0; 631 base->head = 0;
… …
643 write (sigpipe [1], &signum, 1); 651 write (sigpipe [1], &signum, 1);
644 errno = old_errno; 652 errno = old_errno;
645 } 653 }
646} 654}
647 655
648void 656void noinline
649ev_feed_signal_event (EV_P_ int signum) 657ev_feed_signal_event (EV_P_ int signum)
650{ 658{
651 WL w; 659 WL w;
652 660
653#if EV_MULTIPLICITY 661#if EV_MULTIPLICITY
… …
664 for (w = signals [signum].head; w; w = w->next) 672 for (w = signals [signum].head; w; w = w->next)
665 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 673 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
666} 674}
667 675
668static void 676static void
669sigcb (EV_P_ struct ev_io *iow, int revents) 677sigcb (EV_P_ ev_io *iow, int revents)
670{ 678{
671 int signum; 679 int signum;
672 680
673 read (sigpipe [0], &revents, 1); 681 read (sigpipe [0], &revents, 1);
674 gotsig = 0; 682 gotsig = 0;
… …
676 for (signum = signalmax; signum--; ) 684 for (signum = signalmax; signum--; )
677 if (signals [signum].gotsig) 685 if (signals [signum].gotsig)
678 ev_feed_signal_event (EV_A_ signum + 1); 686 ev_feed_signal_event (EV_A_ signum + 1);
679} 687}
680 688
681static void 689void inline_size
682fd_intern (int fd) 690fd_intern (int fd)
683{ 691{
684#ifdef _WIN32 692#ifdef _WIN32
685 int arg = 1; 693 int arg = 1;
686 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 694 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
688 fcntl (fd, F_SETFD, FD_CLOEXEC); 696 fcntl (fd, F_SETFD, FD_CLOEXEC);
689 fcntl (fd, F_SETFL, O_NONBLOCK); 697 fcntl (fd, F_SETFL, O_NONBLOCK);
690#endif 698#endif
691} 699}
692 700
693static void 701static void noinline
694siginit (EV_P) 702siginit (EV_P)
695{ 703{
696 fd_intern (sigpipe [0]); 704 fd_intern (sigpipe [0]);
697 fd_intern (sigpipe [1]); 705 fd_intern (sigpipe [1]);
698 706
… …
701 ev_unref (EV_A); /* child watcher should not keep loop alive */ 709 ev_unref (EV_A); /* child watcher should not keep loop alive */
702} 710}
703 711
704/*****************************************************************************/ 712/*****************************************************************************/
705 713
706static struct ev_child *childs [PID_HASHSIZE]; 714static ev_child *childs [PID_HASHSIZE];
707 715
708#ifndef _WIN32 716#ifndef _WIN32
709 717
710static struct ev_signal childev; 718static ev_signal childev;
711 719
712#ifndef WCONTINUED 720void inline_speed
713# define WCONTINUED 0
714#endif
715
716static void
717child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 721child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
718{ 722{
719 struct ev_child *w; 723 ev_child *w;
720 724
721 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 725 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
722 if (w->pid == pid || !w->pid) 726 if (w->pid == pid || !w->pid)
723 { 727 {
724 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 728 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
725 w->rpid = pid; 729 w->rpid = pid;
726 w->rstatus = status; 730 w->rstatus = status;
727 ev_feed_event (EV_A_ (W)w, EV_CHILD); 731 ev_feed_event (EV_A_ (W)w, EV_CHILD);
728 } 732 }
729} 733}
730 734
735#ifndef WCONTINUED
736# define WCONTINUED 0
737#endif
738
731static void 739static void
732childcb (EV_P_ struct ev_signal *sw, int revents) 740childcb (EV_P_ ev_signal *sw, int revents)
733{ 741{
734 int pid, status; 742 int pid, status;
735 743
744 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
736 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 745 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
737 { 746 if (!WCONTINUED
747 || errno != EINVAL
748 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
749 return;
750
738 /* make sure we are called again until all childs have been reaped */ 751 /* make sure we are called again until all childs have been reaped */
739 /* we need to do it this way so that the callback gets called before we continue */ 752 /* we need to do it this way so that the callback gets called before we continue */
740 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 753 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
741 754
742 child_reap (EV_A_ sw, pid, pid, status); 755 child_reap (EV_A_ sw, pid, pid, status);
743 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 756 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
744 }
745} 757}
746 758
747#endif 759#endif
748 760
749/*****************************************************************************/ 761/*****************************************************************************/
… …
775{ 787{
776 return EV_VERSION_MINOR; 788 return EV_VERSION_MINOR;
777} 789}
778 790
779/* return true if we are running with elevated privileges and should ignore env variables */ 791/* return true if we are running with elevated privileges and should ignore env variables */
780static int 792int inline_size
781enable_secure (void) 793enable_secure (void)
782{ 794{
783#ifdef _WIN32 795#ifdef _WIN32
784 return 0; 796 return 0;
785#else 797#else
… …
907 array_free (pending, [i]); 919 array_free (pending, [i]);
908 920
909 /* have to use the microsoft-never-gets-it-right macro */ 921 /* have to use the microsoft-never-gets-it-right macro */
910 array_free (fdchange, EMPTY0); 922 array_free (fdchange, EMPTY0);
911 array_free (timer, EMPTY0); 923 array_free (timer, EMPTY0);
912#if EV_PERIODICS 924#if EV_PERIODIC_ENABLE
913 array_free (periodic, EMPTY0); 925 array_free (periodic, EMPTY0);
914#endif 926#endif
915 array_free (idle, EMPTY0); 927 array_free (idle, EMPTY0);
916 array_free (prepare, EMPTY0); 928 array_free (prepare, EMPTY0);
917 array_free (check, EMPTY0); 929 array_free (check, EMPTY0);
… …
1053 postfork = 1; 1065 postfork = 1;
1054} 1066}
1055 1067
1056/*****************************************************************************/ 1068/*****************************************************************************/
1057 1069
1058static int 1070int inline_size
1059any_pending (EV_P) 1071any_pending (EV_P)
1060{ 1072{
1061 int pri; 1073 int pri;
1062 1074
1063 for (pri = NUMPRI; pri--; ) 1075 for (pri = NUMPRI; pri--; )
… …
1065 return 1; 1077 return 1;
1066 1078
1067 return 0; 1079 return 0;
1068} 1080}
1069 1081
1070inline void 1082void inline_speed
1071call_pending (EV_P) 1083call_pending (EV_P)
1072{ 1084{
1073 int pri; 1085 int pri;
1074 1086
1075 for (pri = NUMPRI; pri--; ) 1087 for (pri = NUMPRI; pri--; )
… …
1077 { 1089 {
1078 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1090 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1079 1091
1080 if (expect_true (p->w)) 1092 if (expect_true (p->w))
1081 { 1093 {
1094 assert (("non-pending watcher on pending list", p->w->pending));
1095
1082 p->w->pending = 0; 1096 p->w->pending = 0;
1083 EV_CB_INVOKE (p->w, p->events); 1097 EV_CB_INVOKE (p->w, p->events);
1084 } 1098 }
1085 } 1099 }
1086} 1100}
1087 1101
1088inline void 1102void inline_size
1089timers_reify (EV_P) 1103timers_reify (EV_P)
1090{ 1104{
1091 while (timercnt && ((WT)timers [0])->at <= mn_now) 1105 while (timercnt && ((WT)timers [0])->at <= mn_now)
1092 { 1106 {
1093 struct ev_timer *w = timers [0]; 1107 ev_timer *w = timers [0];
1094 1108
1095 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1109 assert (("inactive timer on timer heap detected", ev_is_active (w)));
1096 1110
1097 /* first reschedule or stop timer */ 1111 /* first reschedule or stop timer */
1098 if (w->repeat) 1112 if (w->repeat)
… …
1110 1124
1111 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1125 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1112 } 1126 }
1113} 1127}
1114 1128
1115#if EV_PERIODICS 1129#if EV_PERIODIC_ENABLE
1116inline void 1130void inline_size
1117periodics_reify (EV_P) 1131periodics_reify (EV_P)
1118{ 1132{
1119 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1133 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1120 { 1134 {
1121 struct ev_periodic *w = periodics [0]; 1135 ev_periodic *w = periodics [0];
1122 1136
1123 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1137 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1124 1138
1125 /* first reschedule or stop timer */ 1139 /* first reschedule or stop timer */
1126 if (w->reschedule_cb) 1140 if (w->reschedule_cb)
… …
1140 1154
1141 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1155 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1142 } 1156 }
1143} 1157}
1144 1158
1145static void 1159static void noinline
1146periodics_reschedule (EV_P) 1160periodics_reschedule (EV_P)
1147{ 1161{
1148 int i; 1162 int i;
1149 1163
1150 /* adjust periodics after time jump */ 1164 /* adjust periodics after time jump */
1151 for (i = 0; i < periodiccnt; ++i) 1165 for (i = 0; i < periodiccnt; ++i)
1152 { 1166 {
1153 struct ev_periodic *w = periodics [i]; 1167 ev_periodic *w = periodics [i];
1154 1168
1155 if (w->reschedule_cb) 1169 if (w->reschedule_cb)
1156 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1170 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1157 else if (w->interval) 1171 else if (w->interval)
1158 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1172 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
… …
1162 for (i = periodiccnt >> 1; i--; ) 1176 for (i = periodiccnt >> 1; i--; )
1163 downheap ((WT *)periodics, periodiccnt, i); 1177 downheap ((WT *)periodics, periodiccnt, i);
1164} 1178}
1165#endif 1179#endif
1166 1180
1167inline int 1181int inline_size
1168time_update_monotonic (EV_P) 1182time_update_monotonic (EV_P)
1169{ 1183{
1170 mn_now = get_clock (); 1184 mn_now = get_clock ();
1171 1185
1172 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1186 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
… …
1180 ev_rt_now = ev_time (); 1194 ev_rt_now = ev_time ();
1181 return 1; 1195 return 1;
1182 } 1196 }
1183} 1197}
1184 1198
1185inline void 1199void inline_size
1186time_update (EV_P) 1200time_update (EV_P)
1187{ 1201{
1188 int i; 1202 int i;
1189 1203
1190#if EV_USE_MONOTONIC 1204#if EV_USE_MONOTONIC
… …
1192 { 1206 {
1193 if (time_update_monotonic (EV_A)) 1207 if (time_update_monotonic (EV_A))
1194 { 1208 {
1195 ev_tstamp odiff = rtmn_diff; 1209 ev_tstamp odiff = rtmn_diff;
1196 1210
1197 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1211 /* loop a few times, before making important decisions.
1212 * on the choice of "4": one iteration isn't enough,
1213 * in case we get preempted during the calls to
1214 * ev_time and get_clock. a second call is almost guarenteed
1215 * to succeed in that case, though. and looping a few more times
1216 * doesn't hurt either as we only do this on time-jumps or
1217 * in the unlikely event of getting preempted here.
1218 */
1219 for (i = 4; --i; )
1198 { 1220 {
1199 rtmn_diff = ev_rt_now - mn_now; 1221 rtmn_diff = ev_rt_now - mn_now;
1200 1222
1201 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1223 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1202 return; /* all is well */ 1224 return; /* all is well */
… …
1204 ev_rt_now = ev_time (); 1226 ev_rt_now = ev_time ();
1205 mn_now = get_clock (); 1227 mn_now = get_clock ();
1206 now_floor = mn_now; 1228 now_floor = mn_now;
1207 } 1229 }
1208 1230
1209# if EV_PERIODICS 1231# if EV_PERIODIC_ENABLE
1210 periodics_reschedule (EV_A); 1232 periodics_reschedule (EV_A);
1211# endif 1233# endif
1212 /* no timer adjustment, as the monotonic clock doesn't jump */ 1234 /* no timer adjustment, as the monotonic clock doesn't jump */
1213 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1235 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1214 } 1236 }
… …
1218 { 1240 {
1219 ev_rt_now = ev_time (); 1241 ev_rt_now = ev_time ();
1220 1242
1221 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1243 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1222 { 1244 {
1223#if EV_PERIODICS 1245#if EV_PERIODIC_ENABLE
1224 periodics_reschedule (EV_A); 1246 periodics_reschedule (EV_A);
1225#endif 1247#endif
1226 1248
1227 /* adjust timers. this is easy, as the offset is the same for all */ 1249 /* adjust timers. this is easy, as the offset is the same for all */
1228 for (i = 0; i < timercnt; ++i) 1250 for (i = 0; i < timercnt; ++i)
… …
1248static int loop_done; 1270static int loop_done;
1249 1271
1250void 1272void
1251ev_loop (EV_P_ int flags) 1273ev_loop (EV_P_ int flags)
1252{ 1274{
1253 double block;
1254 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1275 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1276 ? EVUNLOOP_ONE
1277 : EVUNLOOP_CANCEL;
1255 1278
1256 while (activecnt) 1279 while (activecnt)
1257 { 1280 {
1258 /* queue check watchers (and execute them) */ 1281 /* queue check watchers (and execute them) */
1259 if (expect_false (preparecnt)) 1282 if (expect_false (preparecnt))
… …
1268 1291
1269 /* update fd-related kernel structures */ 1292 /* update fd-related kernel structures */
1270 fd_reify (EV_A); 1293 fd_reify (EV_A);
1271 1294
1272 /* calculate blocking time */ 1295 /* calculate blocking time */
1296 {
1297 double block;
1273 1298
1274 /* we only need this for !monotonic clock or timers, but as we basically 1299 if (flags & EVLOOP_NONBLOCK || idlecnt)
1275 always have timers, we just calculate it always */ 1300 block = 0.; /* do not block at all */
1301 else
1302 {
1303 /* update time to cancel out callback processing overhead */
1276#if EV_USE_MONOTONIC 1304#if EV_USE_MONOTONIC
1277 if (expect_true (have_monotonic)) 1305 if (expect_true (have_monotonic))
1278 time_update_monotonic (EV_A); 1306 time_update_monotonic (EV_A);
1279 else 1307 else
1280#endif 1308#endif
1281 { 1309 {
1282 ev_rt_now = ev_time (); 1310 ev_rt_now = ev_time ();
1283 mn_now = ev_rt_now; 1311 mn_now = ev_rt_now;
1284 } 1312 }
1285 1313
1286 if (flags & EVLOOP_NONBLOCK || idlecnt)
1287 block = 0.;
1288 else
1289 {
1290 block = MAX_BLOCKTIME; 1314 block = MAX_BLOCKTIME;
1291 1315
1292 if (timercnt) 1316 if (timercnt)
1293 { 1317 {
1294 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1318 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1295 if (block > to) block = to; 1319 if (block > to) block = to;
1296 } 1320 }
1297 1321
1298#if EV_PERIODICS 1322#if EV_PERIODIC_ENABLE
1299 if (periodiccnt) 1323 if (periodiccnt)
1300 { 1324 {
1301 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; 1325 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1302 if (block > to) block = to; 1326 if (block > to) block = to;
1303 } 1327 }
1304#endif 1328#endif
1305 1329
1306 if (expect_false (block < 0.)) block = 0.; 1330 if (expect_false (block < 0.)) block = 0.;
1307 } 1331 }
1308 1332
1309 backend_poll (EV_A_ block); 1333 backend_poll (EV_A_ block);
1334 }
1310 1335
1311 /* update ev_rt_now, do magic */ 1336 /* update ev_rt_now, do magic */
1312 time_update (EV_A); 1337 time_update (EV_A);
1313 1338
1314 /* queue pending timers and reschedule them */ 1339 /* queue pending timers and reschedule them */
1315 timers_reify (EV_A); /* relative timers called last */ 1340 timers_reify (EV_A); /* relative timers called last */
1316#if EV_PERIODICS 1341#if EV_PERIODIC_ENABLE
1317 periodics_reify (EV_A); /* absolute timers called first */ 1342 periodics_reify (EV_A); /* absolute timers called first */
1318#endif 1343#endif
1319 1344
1320 /* queue idle watchers unless io or timers are pending */ 1345 /* queue idle watchers unless other events are pending */
1321 if (idlecnt && !any_pending (EV_A)) 1346 if (idlecnt && !any_pending (EV_A))
1322 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1347 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1323 1348
1324 /* queue check watchers, to be executed first */ 1349 /* queue check watchers, to be executed first */
1325 if (expect_false (checkcnt)) 1350 if (expect_false (checkcnt))
… …
1329 1354
1330 if (expect_false (loop_done)) 1355 if (expect_false (loop_done))
1331 break; 1356 break;
1332 } 1357 }
1333 1358
1334 if (loop_done != 2) 1359 if (loop_done == EVUNLOOP_ONE)
1335 loop_done = 0; 1360 loop_done = EVUNLOOP_CANCEL;
1336} 1361}
1337 1362
1338void 1363void
1339ev_unloop (EV_P_ int how) 1364ev_unloop (EV_P_ int how)
1340{ 1365{
1341 loop_done = how; 1366 loop_done = how;
1342} 1367}
1343 1368
1344/*****************************************************************************/ 1369/*****************************************************************************/
1345 1370
1346inline void 1371void inline_size
1347wlist_add (WL *head, WL elem) 1372wlist_add (WL *head, WL elem)
1348{ 1373{
1349 elem->next = *head; 1374 elem->next = *head;
1350 *head = elem; 1375 *head = elem;
1351} 1376}
1352 1377
1353inline void 1378void inline_size
1354wlist_del (WL *head, WL elem) 1379wlist_del (WL *head, WL elem)
1355{ 1380{
1356 while (*head) 1381 while (*head)
1357 { 1382 {
1358 if (*head == elem) 1383 if (*head == elem)
… …
1363 1388
1364 head = &(*head)->next; 1389 head = &(*head)->next;
1365 } 1390 }
1366} 1391}
1367 1392
1368inline void 1393void inline_speed
1369ev_clear_pending (EV_P_ W w) 1394ev_clear_pending (EV_P_ W w)
1370{ 1395{
1371 if (w->pending) 1396 if (w->pending)
1372 { 1397 {
1373 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1398 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1374 w->pending = 0; 1399 w->pending = 0;
1375 } 1400 }
1376} 1401}
1377 1402
1378inline void 1403void inline_speed
1379ev_start (EV_P_ W w, int active) 1404ev_start (EV_P_ W w, int active)
1380{ 1405{
1381 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1406 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1382 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1407 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1383 1408
1384 w->active = active; 1409 w->active = active;
1385 ev_ref (EV_A); 1410 ev_ref (EV_A);
1386} 1411}
1387 1412
1388inline void 1413void inline_size
1389ev_stop (EV_P_ W w) 1414ev_stop (EV_P_ W w)
1390{ 1415{
1391 ev_unref (EV_A); 1416 ev_unref (EV_A);
1392 w->active = 0; 1417 w->active = 0;
1393} 1418}
1394 1419
1395/*****************************************************************************/ 1420/*****************************************************************************/
1396 1421
1397void 1422void
1398ev_io_start (EV_P_ struct ev_io *w) 1423ev_io_start (EV_P_ ev_io *w)
1399{ 1424{
1400 int fd = w->fd; 1425 int fd = w->fd;
1401 1426
1402 if (expect_false (ev_is_active (w))) 1427 if (expect_false (ev_is_active (w)))
1403 return; 1428 return;
… …
1410 1435
1411 fd_change (EV_A_ fd); 1436 fd_change (EV_A_ fd);
1412} 1437}
1413 1438
1414void 1439void
1415ev_io_stop (EV_P_ struct ev_io *w) 1440ev_io_stop (EV_P_ ev_io *w)
1416{ 1441{
1417 ev_clear_pending (EV_A_ (W)w); 1442 ev_clear_pending (EV_A_ (W)w);
1418 if (expect_false (!ev_is_active (w))) 1443 if (expect_false (!ev_is_active (w)))
1419 return; 1444 return;
1420 1445
… …
1425 1450
1426 fd_change (EV_A_ w->fd); 1451 fd_change (EV_A_ w->fd);
1427} 1452}
1428 1453
1429void 1454void
1430ev_timer_start (EV_P_ struct ev_timer *w) 1455ev_timer_start (EV_P_ ev_timer *w)
1431{ 1456{
1432 if (expect_false (ev_is_active (w))) 1457 if (expect_false (ev_is_active (w)))
1433 return; 1458 return;
1434 1459
1435 ((WT)w)->at += mn_now; 1460 ((WT)w)->at += mn_now;
1436 1461
1437 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1462 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1438 1463
1439 ev_start (EV_A_ (W)w, ++timercnt); 1464 ev_start (EV_A_ (W)w, ++timercnt);
1440 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1465 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1441 timers [timercnt - 1] = w; 1466 timers [timercnt - 1] = w;
1442 upheap ((WT *)timers, timercnt - 1); 1467 upheap ((WT *)timers, timercnt - 1);
1443 1468
1444 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1469 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1445} 1470}
1446 1471
1447void 1472void
1448ev_timer_stop (EV_P_ struct ev_timer *w) 1473ev_timer_stop (EV_P_ ev_timer *w)
1449{ 1474{
1450 ev_clear_pending (EV_A_ (W)w); 1475 ev_clear_pending (EV_A_ (W)w);
1451 if (expect_false (!ev_is_active (w))) 1476 if (expect_false (!ev_is_active (w)))
1452 return; 1477 return;
1453 1478
… …
1463 1488
1464 ev_stop (EV_A_ (W)w); 1489 ev_stop (EV_A_ (W)w);
1465} 1490}
1466 1491
1467void 1492void
1468ev_timer_again (EV_P_ struct ev_timer *w) 1493ev_timer_again (EV_P_ ev_timer *w)
1469{ 1494{
1470 if (ev_is_active (w)) 1495 if (ev_is_active (w))
1471 { 1496 {
1472 if (w->repeat) 1497 if (w->repeat)
1473 { 1498 {
… …
1482 w->at = w->repeat; 1507 w->at = w->repeat;
1483 ev_timer_start (EV_A_ w); 1508 ev_timer_start (EV_A_ w);
1484 } 1509 }
1485} 1510}
1486 1511
1487#if EV_PERIODICS 1512#if EV_PERIODIC_ENABLE
1488void 1513void
1489ev_periodic_start (EV_P_ struct ev_periodic *w) 1514ev_periodic_start (EV_P_ ev_periodic *w)
1490{ 1515{
1491 if (expect_false (ev_is_active (w))) 1516 if (expect_false (ev_is_active (w)))
1492 return; 1517 return;
1493 1518
1494 if (w->reschedule_cb) 1519 if (w->reschedule_cb)
… …
1499 /* this formula differs from the one in periodic_reify because we do not always round up */ 1524 /* this formula differs from the one in periodic_reify because we do not always round up */
1500 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1525 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1501 } 1526 }
1502 1527
1503 ev_start (EV_A_ (W)w, ++periodiccnt); 1528 ev_start (EV_A_ (W)w, ++periodiccnt);
1504 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1529 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1505 periodics [periodiccnt - 1] = w; 1530 periodics [periodiccnt - 1] = w;
1506 upheap ((WT *)periodics, periodiccnt - 1); 1531 upheap ((WT *)periodics, periodiccnt - 1);
1507 1532
1508 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1533 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1509} 1534}
1510 1535
1511void 1536void
1512ev_periodic_stop (EV_P_ struct ev_periodic *w) 1537ev_periodic_stop (EV_P_ ev_periodic *w)
1513{ 1538{
1514 ev_clear_pending (EV_A_ (W)w); 1539 ev_clear_pending (EV_A_ (W)w);
1515 if (expect_false (!ev_is_active (w))) 1540 if (expect_false (!ev_is_active (w)))
1516 return; 1541 return;
1517 1542
… …
1525 1550
1526 ev_stop (EV_A_ (W)w); 1551 ev_stop (EV_A_ (W)w);
1527} 1552}
1528 1553
1529void 1554void
1530ev_periodic_again (EV_P_ struct ev_periodic *w) 1555ev_periodic_again (EV_P_ ev_periodic *w)
1531{ 1556{
1532 /* TODO: use adjustheap and recalculation */ 1557 /* TODO: use adjustheap and recalculation */
1533 ev_periodic_stop (EV_A_ w); 1558 ev_periodic_stop (EV_A_ w);
1534 ev_periodic_start (EV_A_ w); 1559 ev_periodic_start (EV_A_ w);
1535} 1560}
1536#endif 1561#endif
1537 1562
1538void 1563void
1539ev_idle_start (EV_P_ struct ev_idle *w) 1564ev_idle_start (EV_P_ ev_idle *w)
1540{ 1565{
1541 if (expect_false (ev_is_active (w))) 1566 if (expect_false (ev_is_active (w)))
1542 return; 1567 return;
1543 1568
1544 ev_start (EV_A_ (W)w, ++idlecnt); 1569 ev_start (EV_A_ (W)w, ++idlecnt);
1545 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); 1570 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1546 idles [idlecnt - 1] = w; 1571 idles [idlecnt - 1] = w;
1547} 1572}
1548 1573
1549void 1574void
1550ev_idle_stop (EV_P_ struct ev_idle *w) 1575ev_idle_stop (EV_P_ ev_idle *w)
1551{ 1576{
1552 ev_clear_pending (EV_A_ (W)w); 1577 ev_clear_pending (EV_A_ (W)w);
1553 if (expect_false (!ev_is_active (w))) 1578 if (expect_false (!ev_is_active (w)))
1554 return; 1579 return;
1555 1580
1581 {
1582 int active = ((W)w)->active;
1556 idles [((W)w)->active - 1] = idles [--idlecnt]; 1583 idles [active - 1] = idles [--idlecnt];
1584 ((W)idles [active - 1])->active = active;
1585 }
1586
1557 ev_stop (EV_A_ (W)w); 1587 ev_stop (EV_A_ (W)w);
1558} 1588}
1559 1589
1560void 1590void
1561ev_prepare_start (EV_P_ struct ev_prepare *w) 1591ev_prepare_start (EV_P_ ev_prepare *w)
1562{ 1592{
1563 if (expect_false (ev_is_active (w))) 1593 if (expect_false (ev_is_active (w)))
1564 return; 1594 return;
1565 1595
1566 ev_start (EV_A_ (W)w, ++preparecnt); 1596 ev_start (EV_A_ (W)w, ++preparecnt);
1567 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 1597 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1568 prepares [preparecnt - 1] = w; 1598 prepares [preparecnt - 1] = w;
1569} 1599}
1570 1600
1571void 1601void
1572ev_prepare_stop (EV_P_ struct ev_prepare *w) 1602ev_prepare_stop (EV_P_ ev_prepare *w)
1573{ 1603{
1574 ev_clear_pending (EV_A_ (W)w); 1604 ev_clear_pending (EV_A_ (W)w);
1575 if (expect_false (!ev_is_active (w))) 1605 if (expect_false (!ev_is_active (w)))
1576 return; 1606 return;
1577 1607
1608 {
1609 int active = ((W)w)->active;
1578 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1610 prepares [active - 1] = prepares [--preparecnt];
1611 ((W)prepares [active - 1])->active = active;
1612 }
1613
1579 ev_stop (EV_A_ (W)w); 1614 ev_stop (EV_A_ (W)w);
1580} 1615}
1581 1616
1582void 1617void
1583ev_check_start (EV_P_ struct ev_check *w) 1618ev_check_start (EV_P_ ev_check *w)
1584{ 1619{
1585 if (expect_false (ev_is_active (w))) 1620 if (expect_false (ev_is_active (w)))
1586 return; 1621 return;
1587 1622
1588 ev_start (EV_A_ (W)w, ++checkcnt); 1623 ev_start (EV_A_ (W)w, ++checkcnt);
1589 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); 1624 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1590 checks [checkcnt - 1] = w; 1625 checks [checkcnt - 1] = w;
1591} 1626}
1592 1627
1593void 1628void
1594ev_check_stop (EV_P_ struct ev_check *w) 1629ev_check_stop (EV_P_ ev_check *w)
1595{ 1630{
1596 ev_clear_pending (EV_A_ (W)w); 1631 ev_clear_pending (EV_A_ (W)w);
1597 if (expect_false (!ev_is_active (w))) 1632 if (expect_false (!ev_is_active (w)))
1598 return; 1633 return;
1599 1634
1635 {
1636 int active = ((W)w)->active;
1600 checks [((W)w)->active - 1] = checks [--checkcnt]; 1637 checks [active - 1] = checks [--checkcnt];
1638 ((W)checks [active - 1])->active = active;
1639 }
1640
1601 ev_stop (EV_A_ (W)w); 1641 ev_stop (EV_A_ (W)w);
1602} 1642}
1603 1643
1604#ifndef SA_RESTART 1644#ifndef SA_RESTART
1605# define SA_RESTART 0 1645# define SA_RESTART 0
1606#endif 1646#endif
1607 1647
1608void 1648void
1609ev_signal_start (EV_P_ struct ev_signal *w) 1649ev_signal_start (EV_P_ ev_signal *w)
1610{ 1650{
1611#if EV_MULTIPLICITY 1651#if EV_MULTIPLICITY
1612 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1652 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1613#endif 1653#endif
1614 if (expect_false (ev_is_active (w))) 1654 if (expect_false (ev_is_active (w)))
… …
1633#endif 1673#endif
1634 } 1674 }
1635} 1675}
1636 1676
1637void 1677void
1638ev_signal_stop (EV_P_ struct ev_signal *w) 1678ev_signal_stop (EV_P_ ev_signal *w)
1639{ 1679{
1640 ev_clear_pending (EV_A_ (W)w); 1680 ev_clear_pending (EV_A_ (W)w);
1641 if (expect_false (!ev_is_active (w))) 1681 if (expect_false (!ev_is_active (w)))
1642 return; 1682 return;
1643 1683
… …
1647 if (!signals [w->signum - 1].head) 1687 if (!signals [w->signum - 1].head)
1648 signal (w->signum, SIG_DFL); 1688 signal (w->signum, SIG_DFL);
1649} 1689}
1650 1690
1651void 1691void
1652ev_child_start (EV_P_ struct ev_child *w) 1692ev_child_start (EV_P_ ev_child *w)
1653{ 1693{
1654#if EV_MULTIPLICITY 1694#if EV_MULTIPLICITY
1655 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1695 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1656#endif 1696#endif
1657 if (expect_false (ev_is_active (w))) 1697 if (expect_false (ev_is_active (w)))
… …
1660 ev_start (EV_A_ (W)w, 1); 1700 ev_start (EV_A_ (W)w, 1);
1661 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1701 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1662} 1702}
1663 1703
1664void 1704void
1665ev_child_stop (EV_P_ struct ev_child *w) 1705ev_child_stop (EV_P_ ev_child *w)
1666{ 1706{
1667 ev_clear_pending (EV_A_ (W)w); 1707 ev_clear_pending (EV_A_ (W)w);
1668 if (expect_false (!ev_is_active (w))) 1708 if (expect_false (!ev_is_active (w)))
1669 return; 1709 return;
1670 1710
1671 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1711 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1672 ev_stop (EV_A_ (W)w); 1712 ev_stop (EV_A_ (W)w);
1673} 1713}
1674 1714
1675#if EV_MULTIPLICITY 1715#if EV_EMBED_ENABLE
1716void noinline
1717ev_embed_sweep (EV_P_ ev_embed *w)
1718{
1719 ev_loop (w->loop, EVLOOP_NONBLOCK);
1720}
1721
1676static void 1722static void
1677embed_cb (EV_P_ struct ev_io *io, int revents) 1723embed_cb (EV_P_ ev_io *io, int revents)
1678{ 1724{
1679 struct ev_embed *w = (struct ev_embed *)(((char *)io) - offsetof (struct ev_embed, io)); 1725 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1680 1726
1727 if (ev_cb (w))
1681 ev_feed_event (EV_A_ (W)w, EV_EMBED); 1728 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1682 ev_loop (w->loop, EVLOOP_NONBLOCK); 1729 else
1730 ev_embed_sweep (loop, w);
1683} 1731}
1684 1732
1685void 1733void
1686ev_embed_start (EV_P_ struct ev_embed *w) 1734ev_embed_start (EV_P_ ev_embed *w)
1687{ 1735{
1688 if (expect_false (ev_is_active (w))) 1736 if (expect_false (ev_is_active (w)))
1689 return; 1737 return;
1690 1738
1691 { 1739 {
1692 struct ev_loop *loop = w->loop; 1740 struct ev_loop *loop = w->loop;
1693 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 1741 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1694 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 1742 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1695 } 1743 }
1696 1744
1745 ev_set_priority (&w->io, ev_priority (w));
1697 ev_io_start (EV_A_ &w->io); 1746 ev_io_start (EV_A_ &w->io);
1747
1698 ev_start (EV_A_ (W)w, 1); 1748 ev_start (EV_A_ (W)w, 1);
1699} 1749}
1700 1750
1701void 1751void
1702ev_embed_stop (EV_P_ struct ev_embed *w) 1752ev_embed_stop (EV_P_ ev_embed *w)
1703{ 1753{
1704 ev_clear_pending (EV_A_ (W)w); 1754 ev_clear_pending (EV_A_ (W)w);
1705 if (expect_false (!ev_is_active (w))) 1755 if (expect_false (!ev_is_active (w)))
1706 return; 1756 return;
1707 1757
1708 ev_io_stop (EV_A_ &w->io); 1758 ev_io_stop (EV_A_ &w->io);
1759
1709 ev_stop (EV_A_ (W)w); 1760 ev_stop (EV_A_ (W)w);
1710} 1761}
1711#endif 1762#endif
1712 1763
1764#if EV_STAT_ENABLE
1765
1766# ifdef _WIN32
1767# define lstat(a,b) stat(a,b)
1768# endif
1769
1770#define DEF_STAT_INTERVAL 5.0074891
1771#define MIN_STAT_INTERVAL 0.1074891
1772
1773void
1774ev_stat_stat (EV_P_ ev_stat *w)
1775{
1776 if (lstat (w->path, &w->attr) < 0)
1777 w->attr.st_nlink = 0;
1778 else if (!w->attr.st_nlink)
1779 w->attr.st_nlink = 1;
1780}
1781
1782static void
1783stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1784{
1785 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1786
1787 /* we copy this here each the time so that */
1788 /* prev has the old value when the callback gets invoked */
1789 w->prev = w->attr;
1790 ev_stat_stat (EV_A_ w);
1791
1792 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1793 ev_feed_event (EV_A_ w, EV_STAT);
1794}
1795
1796void
1797ev_stat_start (EV_P_ ev_stat *w)
1798{
1799 if (expect_false (ev_is_active (w)))
1800 return;
1801
1802 /* since we use memcmp, we need to clear any padding data etc. */
1803 memset (&w->prev, 0, sizeof (ev_statdata));
1804 memset (&w->attr, 0, sizeof (ev_statdata));
1805
1806 ev_stat_stat (EV_A_ w);
1807
1808 if (w->interval < MIN_STAT_INTERVAL)
1809 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1810
1811 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1812 ev_set_priority (&w->timer, ev_priority (w));
1813 ev_timer_start (EV_A_ &w->timer);
1814
1815 ev_start (EV_A_ (W)w, 1);
1816}
1817
1818void
1819ev_stat_stop (EV_P_ ev_stat *w)
1820{
1821 ev_clear_pending (EV_A_ (W)w);
1822 if (expect_false (!ev_is_active (w)))
1823 return;
1824
1825 ev_timer_stop (EV_A_ &w->timer);
1826
1827 ev_stop (EV_A_ (W)w);
1828}
1829#endif
1830
1713/*****************************************************************************/ 1831/*****************************************************************************/
1714 1832
1715struct ev_once 1833struct ev_once
1716{ 1834{
1717 struct ev_io io; 1835 ev_io io;
1718 struct ev_timer to; 1836 ev_timer to;
1719 void (*cb)(int revents, void *arg); 1837 void (*cb)(int revents, void *arg);
1720 void *arg; 1838 void *arg;
1721}; 1839};
1722 1840
1723static void 1841static void
… …
1732 1850
1733 cb (revents, arg); 1851 cb (revents, arg);
1734} 1852}
1735 1853
1736static void 1854static void
1737once_cb_io (EV_P_ struct ev_io *w, int revents) 1855once_cb_io (EV_P_ ev_io *w, int revents)
1738{ 1856{
1739 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 1857 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1740} 1858}
1741 1859
1742static void 1860static void
1743once_cb_to (EV_P_ struct ev_timer *w, int revents) 1861once_cb_to (EV_P_ ev_timer *w, int revents)
1744{ 1862{
1745 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 1863 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1746} 1864}
1747 1865
1748void 1866void

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