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Comparing libev/ev.c (file contents):
Revision 1.138 by root, Sat Nov 24 09:48:38 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
… …
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))
… …
403 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);
404 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 402 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
405 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 403 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
406} 404}
407 405
408static void 406void inline_size
409queue_events (EV_P_ W *events, int eventcnt, int type) 407queue_events (EV_P_ W *events, int eventcnt, int type)
410{ 408{
411 int i; 409 int i;
412 410
413 for (i = 0; i < eventcnt; ++i) 411 for (i = 0; i < eventcnt; ++i)
414 ev_feed_event (EV_A_ events [i], type); 412 ev_feed_event (EV_A_ events [i], type);
415} 413}
416 414
417inline 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
418fd_event (EV_P_ int fd, int revents) 431fd_event (EV_P_ int fd, int revents)
419{ 432{
420 ANFD *anfd = anfds + fd; 433 ANFD *anfd = anfds + fd;
421 ev_io *w; 434 ev_io *w;
422 435
… …
433ev_feed_fd_event (EV_P_ int fd, int revents) 446ev_feed_fd_event (EV_P_ int fd, int revents)
434{ 447{
435 fd_event (EV_A_ fd, revents); 448 fd_event (EV_A_ fd, revents);
436} 449}
437 450
438/*****************************************************************************/ 451void inline_size
439
440inline void
441fd_reify (EV_P) 452fd_reify (EV_P)
442{ 453{
443 int i; 454 int i;
444 455
445 for (i = 0; i < fdchangecnt; ++i) 456 for (i = 0; i < fdchangecnt; ++i)
… …
469 } 480 }
470 481
471 fdchangecnt = 0; 482 fdchangecnt = 0;
472} 483}
473 484
474static void 485void inline_size
475fd_change (EV_P_ int fd) 486fd_change (EV_P_ int fd)
476{ 487{
477 if (expect_false (anfds [fd].reify)) 488 if (expect_false (anfds [fd].reify))
478 return; 489 return;
479 490
… …
482 ++fdchangecnt; 493 ++fdchangecnt;
483 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 494 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
484 fdchanges [fdchangecnt - 1] = fd; 495 fdchanges [fdchangecnt - 1] = fd;
485} 496}
486 497
487static void 498void inline_speed
488fd_kill (EV_P_ int fd) 499fd_kill (EV_P_ int fd)
489{ 500{
490 ev_io *w; 501 ev_io *w;
491 502
492 while ((w = (ev_io *)anfds [fd].head)) 503 while ((w = (ev_io *)anfds [fd].head))
… …
494 ev_io_stop (EV_A_ w); 505 ev_io_stop (EV_A_ w);
495 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);
496 } 507 }
497} 508}
498 509
499inline int 510int inline_size
500fd_valid (int fd) 511fd_valid (int fd)
501{ 512{
502#ifdef _WIN32 513#ifdef _WIN32
503 return _get_osfhandle (fd) != -1; 514 return _get_osfhandle (fd) != -1;
504#else 515#else
505 return fcntl (fd, F_GETFD) != -1; 516 return fcntl (fd, F_GETFD) != -1;
506#endif 517#endif
507} 518}
508 519
509/* called on EBADF to verify fds */ 520/* called on EBADF to verify fds */
510static void 521static void noinline
511fd_ebadf (EV_P) 522fd_ebadf (EV_P)
512{ 523{
513 int fd; 524 int fd;
514 525
515 for (fd = 0; fd < anfdmax; ++fd) 526 for (fd = 0; fd < anfdmax; ++fd)
… …
517 if (!fd_valid (fd) == -1 && errno == EBADF) 528 if (!fd_valid (fd) == -1 && errno == EBADF)
518 fd_kill (EV_A_ fd); 529 fd_kill (EV_A_ fd);
519} 530}
520 531
521/* 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 */
522static void 533static void noinline
523fd_enomem (EV_P) 534fd_enomem (EV_P)
524{ 535{
525 int fd; 536 int fd;
526 537
527 for (fd = anfdmax; fd--; ) 538 for (fd = anfdmax; fd--; )
… …
531 return; 542 return;
532 } 543 }
533} 544}
534 545
535/* 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 */
536static void 547static void noinline
537fd_rearm_all (EV_P) 548fd_rearm_all (EV_P)
538{ 549{
539 int fd; 550 int fd;
540 551
541 /* 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 */
… …
547 } 558 }
548} 559}
549 560
550/*****************************************************************************/ 561/*****************************************************************************/
551 562
552static void 563void inline_speed
553upheap (WT *heap, int k) 564upheap (WT *heap, int k)
554{ 565{
555 WT w = heap [k]; 566 WT w = heap [k];
556 567
557 while (k && heap [k >> 1]->at > w->at) 568 while (k && heap [k >> 1]->at > w->at)
… …
564 heap [k] = w; 575 heap [k] = w;
565 ((W)heap [k])->active = k + 1; 576 ((W)heap [k])->active = k + 1;
566 577
567} 578}
568 579
569static void 580void inline_speed
570downheap (WT *heap, int N, int k) 581downheap (WT *heap, int N, int k)
571{ 582{
572 WT w = heap [k]; 583 WT w = heap [k];
573 584
574 while (k < (N >> 1)) 585 while (k < (N >> 1))
… …
588 599
589 heap [k] = w; 600 heap [k] = w;
590 ((W)heap [k])->active = k + 1; 601 ((W)heap [k])->active = k + 1;
591} 602}
592 603
593inline void 604void inline_size
594adjustheap (WT *heap, int N, int k) 605adjustheap (WT *heap, int N, int k)
595{ 606{
596 upheap (heap, k); 607 upheap (heap, k);
597 downheap (heap, N, k); 608 downheap (heap, N, k);
598} 609}
… …
610 621
611static int sigpipe [2]; 622static int sigpipe [2];
612static sig_atomic_t volatile gotsig; 623static sig_atomic_t volatile gotsig;
613static ev_io sigev; 624static ev_io sigev;
614 625
615static void 626void inline_size
616signals_init (ANSIG *base, int count) 627signals_init (ANSIG *base, int count)
617{ 628{
618 while (count--) 629 while (count--)
619 { 630 {
620 base->head = 0; 631 base->head = 0;
… …
640 write (sigpipe [1], &signum, 1); 651 write (sigpipe [1], &signum, 1);
641 errno = old_errno; 652 errno = old_errno;
642 } 653 }
643} 654}
644 655
645void 656void noinline
646ev_feed_signal_event (EV_P_ int signum) 657ev_feed_signal_event (EV_P_ int signum)
647{ 658{
648 WL w; 659 WL w;
649 660
650#if EV_MULTIPLICITY 661#if EV_MULTIPLICITY
… …
673 for (signum = signalmax; signum--; ) 684 for (signum = signalmax; signum--; )
674 if (signals [signum].gotsig) 685 if (signals [signum].gotsig)
675 ev_feed_signal_event (EV_A_ signum + 1); 686 ev_feed_signal_event (EV_A_ signum + 1);
676} 687}
677 688
678static void 689void inline_size
679fd_intern (int fd) 690fd_intern (int fd)
680{ 691{
681#ifdef _WIN32 692#ifdef _WIN32
682 int arg = 1; 693 int arg = 1;
683 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 694 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
685 fcntl (fd, F_SETFD, FD_CLOEXEC); 696 fcntl (fd, F_SETFD, FD_CLOEXEC);
686 fcntl (fd, F_SETFL, O_NONBLOCK); 697 fcntl (fd, F_SETFL, O_NONBLOCK);
687#endif 698#endif
688} 699}
689 700
690static void 701static void noinline
691siginit (EV_P) 702siginit (EV_P)
692{ 703{
693 fd_intern (sigpipe [0]); 704 fd_intern (sigpipe [0]);
694 fd_intern (sigpipe [1]); 705 fd_intern (sigpipe [1]);
695 706
… …
704 715
705#ifndef _WIN32 716#ifndef _WIN32
706 717
707static ev_signal childev; 718static ev_signal childev;
708 719
709#ifndef WCONTINUED 720void inline_speed
710# define WCONTINUED 0
711#endif
712
713static void
714child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) 721child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
715{ 722{
716 ev_child *w; 723 ev_child *w;
717 724
718 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 725 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
… …
723 w->rstatus = status; 730 w->rstatus = status;
724 ev_feed_event (EV_A_ (W)w, EV_CHILD); 731 ev_feed_event (EV_A_ (W)w, EV_CHILD);
725 } 732 }
726} 733}
727 734
735#ifndef WCONTINUED
736# define WCONTINUED 0
737#endif
738
728static void 739static void
729childcb (EV_P_ ev_signal *sw, int revents) 740childcb (EV_P_ ev_signal *sw, int revents)
730{ 741{
731 int pid, status; 742 int pid, status;
732 743
744 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
733 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 745 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
734 { 746 if (!WCONTINUED
747 || errno != EINVAL
748 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
749 return;
750
735 /* 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 */
736 /* 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 */
737 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 753 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
738 754
739 child_reap (EV_A_ sw, pid, pid, status); 755 child_reap (EV_A_ sw, pid, pid, status);
740 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 */
741 }
742} 757}
743 758
744#endif 759#endif
745 760
746/*****************************************************************************/ 761/*****************************************************************************/
… …
772{ 787{
773 return EV_VERSION_MINOR; 788 return EV_VERSION_MINOR;
774} 789}
775 790
776/* 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 */
777static int 792int inline_size
778enable_secure (void) 793enable_secure (void)
779{ 794{
780#ifdef _WIN32 795#ifdef _WIN32
781 return 0; 796 return 0;
782#else 797#else
… …
904 array_free (pending, [i]); 919 array_free (pending, [i]);
905 920
906 /* have to use the microsoft-never-gets-it-right macro */ 921 /* have to use the microsoft-never-gets-it-right macro */
907 array_free (fdchange, EMPTY0); 922 array_free (fdchange, EMPTY0);
908 array_free (timer, EMPTY0); 923 array_free (timer, EMPTY0);
909#if EV_PERIODICS 924#if EV_PERIODIC_ENABLE
910 array_free (periodic, EMPTY0); 925 array_free (periodic, EMPTY0);
911#endif 926#endif
912 array_free (idle, EMPTY0); 927 array_free (idle, EMPTY0);
913 array_free (prepare, EMPTY0); 928 array_free (prepare, EMPTY0);
914 array_free (check, EMPTY0); 929 array_free (check, EMPTY0);
… …
1050 postfork = 1; 1065 postfork = 1;
1051} 1066}
1052 1067
1053/*****************************************************************************/ 1068/*****************************************************************************/
1054 1069
1055static int 1070int inline_size
1056any_pending (EV_P) 1071any_pending (EV_P)
1057{ 1072{
1058 int pri; 1073 int pri;
1059 1074
1060 for (pri = NUMPRI; pri--; ) 1075 for (pri = NUMPRI; pri--; )
… …
1062 return 1; 1077 return 1;
1063 1078
1064 return 0; 1079 return 0;
1065} 1080}
1066 1081
1067inline void 1082void inline_speed
1068call_pending (EV_P) 1083call_pending (EV_P)
1069{ 1084{
1070 int pri; 1085 int pri;
1071 1086
1072 for (pri = NUMPRI; pri--; ) 1087 for (pri = NUMPRI; pri--; )
… …
1074 { 1089 {
1075 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1090 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1076 1091
1077 if (expect_true (p->w)) 1092 if (expect_true (p->w))
1078 { 1093 {
1094 assert (("non-pending watcher on pending list", p->w->pending));
1095
1079 p->w->pending = 0; 1096 p->w->pending = 0;
1080 EV_CB_INVOKE (p->w, p->events); 1097 EV_CB_INVOKE (p->w, p->events);
1081 } 1098 }
1082 } 1099 }
1083} 1100}
1084 1101
1085inline void 1102void inline_size
1086timers_reify (EV_P) 1103timers_reify (EV_P)
1087{ 1104{
1088 while (timercnt && ((WT)timers [0])->at <= mn_now) 1105 while (timercnt && ((WT)timers [0])->at <= mn_now)
1089 { 1106 {
1090 ev_timer *w = timers [0]; 1107 ev_timer *w = timers [0];
… …
1107 1124
1108 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1125 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1109 } 1126 }
1110} 1127}
1111 1128
1112#if EV_PERIODICS 1129#if EV_PERIODIC_ENABLE
1113inline void 1130void inline_size
1114periodics_reify (EV_P) 1131periodics_reify (EV_P)
1115{ 1132{
1116 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1133 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1117 { 1134 {
1118 ev_periodic *w = periodics [0]; 1135 ev_periodic *w = periodics [0];
… …
1137 1154
1138 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1155 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1139 } 1156 }
1140} 1157}
1141 1158
1142static void 1159static void noinline
1143periodics_reschedule (EV_P) 1160periodics_reschedule (EV_P)
1144{ 1161{
1145 int i; 1162 int i;
1146 1163
1147 /* adjust periodics after time jump */ 1164 /* adjust periodics after time jump */
… …
1159 for (i = periodiccnt >> 1; i--; ) 1176 for (i = periodiccnt >> 1; i--; )
1160 downheap ((WT *)periodics, periodiccnt, i); 1177 downheap ((WT *)periodics, periodiccnt, i);
1161} 1178}
1162#endif 1179#endif
1163 1180
1164inline int 1181int inline_size
1165time_update_monotonic (EV_P) 1182time_update_monotonic (EV_P)
1166{ 1183{
1167 mn_now = get_clock (); 1184 mn_now = get_clock ();
1168 1185
1169 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1186 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
… …
1177 ev_rt_now = ev_time (); 1194 ev_rt_now = ev_time ();
1178 return 1; 1195 return 1;
1179 } 1196 }
1180} 1197}
1181 1198
1182inline void 1199void inline_size
1183time_update (EV_P) 1200time_update (EV_P)
1184{ 1201{
1185 int i; 1202 int i;
1186 1203
1187#if EV_USE_MONOTONIC 1204#if EV_USE_MONOTONIC
… …
1189 { 1206 {
1190 if (time_update_monotonic (EV_A)) 1207 if (time_update_monotonic (EV_A))
1191 { 1208 {
1192 ev_tstamp odiff = rtmn_diff; 1209 ev_tstamp odiff = rtmn_diff;
1193 1210
1194 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; )
1195 { 1220 {
1196 rtmn_diff = ev_rt_now - mn_now; 1221 rtmn_diff = ev_rt_now - mn_now;
1197 1222
1198 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1223 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1199 return; /* all is well */ 1224 return; /* all is well */
… …
1201 ev_rt_now = ev_time (); 1226 ev_rt_now = ev_time ();
1202 mn_now = get_clock (); 1227 mn_now = get_clock ();
1203 now_floor = mn_now; 1228 now_floor = mn_now;
1204 } 1229 }
1205 1230
1206# if EV_PERIODICS 1231# if EV_PERIODIC_ENABLE
1207 periodics_reschedule (EV_A); 1232 periodics_reschedule (EV_A);
1208# endif 1233# endif
1209 /* no timer adjustment, as the monotonic clock doesn't jump */ 1234 /* no timer adjustment, as the monotonic clock doesn't jump */
1210 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1235 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1211 } 1236 }
… …
1215 { 1240 {
1216 ev_rt_now = ev_time (); 1241 ev_rt_now = ev_time ();
1217 1242
1218 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))
1219 { 1244 {
1220#if EV_PERIODICS 1245#if EV_PERIODIC_ENABLE
1221 periodics_reschedule (EV_A); 1246 periodics_reschedule (EV_A);
1222#endif 1247#endif
1223 1248
1224 /* 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 */
1225 for (i = 0; i < timercnt; ++i) 1250 for (i = 0; i < timercnt; ++i)
… …
1292 { 1317 {
1293 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; 1318 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1294 if (block > to) block = to; 1319 if (block > to) block = to;
1295 } 1320 }
1296 1321
1297#if EV_PERIODICS 1322#if EV_PERIODIC_ENABLE
1298 if (periodiccnt) 1323 if (periodiccnt)
1299 { 1324 {
1300 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;
1301 if (block > to) block = to; 1326 if (block > to) block = to;
1302 } 1327 }
… …
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 other events 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))
… …
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}
… …
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_ 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;
… …
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_ ev_prepare *w) 1591ev_prepare_start (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_ ev_check *w) 1618ev_check_start (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
… …
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
1676void 1716void noinline
1677ev_embed_sweep (EV_P_ ev_embed *w) 1717ev_embed_sweep (EV_P_ ev_embed *w)
1678{ 1718{
1679 ev_loop (w->loop, EVLOOP_NONBLOCK); 1719 ev_loop (w->loop, EVLOOP_NONBLOCK);
1680} 1720}
1681 1721
… …
1702 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); 1742 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1703 } 1743 }
1704 1744
1705 ev_set_priority (&w->io, ev_priority (w)); 1745 ev_set_priority (&w->io, ev_priority (w));
1706 ev_io_start (EV_A_ &w->io); 1746 ev_io_start (EV_A_ &w->io);
1747
1707 ev_start (EV_A_ (W)w, 1); 1748 ev_start (EV_A_ (W)w, 1);
1708} 1749}
1709 1750
1710void 1751void
1711ev_embed_stop (EV_P_ ev_embed *w) 1752ev_embed_stop (EV_P_ ev_embed *w)
… …
1713 ev_clear_pending (EV_A_ (W)w); 1754 ev_clear_pending (EV_A_ (W)w);
1714 if (expect_false (!ev_is_active (w))) 1755 if (expect_false (!ev_is_active (w)))
1715 return; 1756 return;
1716 1757
1717 ev_io_stop (EV_A_ &w->io); 1758 ev_io_stop (EV_A_ &w->io);
1759
1760 ev_stop (EV_A_ (W)w);
1761}
1762#endif
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
1718 ev_stop (EV_A_ (W)w); 1827 ev_stop (EV_A_ (W)w);
1719} 1828}
1720#endif 1829#endif
1721 1830
1722/*****************************************************************************/ 1831/*****************************************************************************/

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