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Comparing libev/ev.c (file contents):
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC vs.
Revision 1.141 by root, Mon Nov 26 20:33:58 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
… …
107#include <time.h> 111#include <time.h>
108 112
109#include <signal.h> 113#include <signal.h>
110 114
111#ifndef _WIN32 115#ifndef _WIN32
112# include <unistd.h>
113# include <sys/time.h> 116# include <sys/time.h>
114# include <sys/wait.h> 117# include <sys/wait.h>
118# include <unistd.h>
115#else 119#else
116# define WIN32_LEAN_AND_MEAN 120# define WIN32_LEAN_AND_MEAN
117# include <windows.h> 121# include <windows.h>
118# ifndef EV_SELECT_IS_WINSOCKET 122# ifndef EV_SELECT_IS_WINSOCKET
119# define EV_SELECT_IS_WINSOCKET 1 123# define EV_SELECT_IS_WINSOCKET 1
… …
154# define EV_USE_PORT 0 158# define EV_USE_PORT 0
155#endif 159#endif
156 160
157/**/ 161/**/
158 162
159/* darwin simply cannot be helped */
160#ifdef __APPLE__
161# undef EV_USE_POLL
162# undef EV_USE_KQUEUE
163#endif
164
165#ifndef CLOCK_MONOTONIC 163#ifndef CLOCK_MONOTONIC
166# undef EV_USE_MONOTONIC 164# undef EV_USE_MONOTONIC
167# define EV_USE_MONOTONIC 0 165# define EV_USE_MONOTONIC 0
168#endif 166#endif
169 167
… …
189# include "ev.h" 187# include "ev.h"
190#endif 188#endif
191 189
192#if __GNUC__ >= 3 190#if __GNUC__ >= 3
193# 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
194# define inline static inline 198# define inline_speed static inline
199# endif
195#else 200#else
196# define expect(expr,value) (expr) 201# define expect(expr,value) (expr)
197# define inline static 202# define inline_speed static
203# define inline_minimal static
204# define noinline
198#endif 205#endif
199 206
200#define expect_false(expr) expect ((expr) != 0, 0) 207#define expect_false(expr) expect ((expr) != 0, 0)
201#define expect_true(expr) expect ((expr) != 0, 1) 208#define expect_true(expr) expect ((expr) != 0, 1)
202 209
… …
204#define ABSPRI(w) ((w)->priority - EV_MINPRI) 211#define ABSPRI(w) ((w)->priority - EV_MINPRI)
205 212
206#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 213#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
207#define EMPTY2(a,b) /* used to suppress some warnings */ 214#define EMPTY2(a,b) /* used to suppress some warnings */
208 215
209typedef struct ev_watcher *W; 216typedef ev_watcher *W;
210typedef struct ev_watcher_list *WL; 217typedef ev_watcher_list *WL;
211typedef struct ev_watcher_time *WT; 218typedef ev_watcher_time *WT;
212 219
213static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 220static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
214 221
215#ifdef _WIN32 222#ifdef _WIN32
216# include "ev_win32.c" 223# include "ev_win32.c"
… …
218 225
219/*****************************************************************************/ 226/*****************************************************************************/
220 227
221static void (*syserr_cb)(const char *msg); 228static void (*syserr_cb)(const char *msg);
222 229
230void
223void ev_set_syserr_cb (void (*cb)(const char *msg)) 231ev_set_syserr_cb (void (*cb)(const char *msg))
224{ 232{
225 syserr_cb = cb; 233 syserr_cb = cb;
226} 234}
227 235
228static void 236static void noinline
229syserr (const char *msg) 237syserr (const char *msg)
230{ 238{
231 if (!msg) 239 if (!msg)
232 msg = "(libev) system error"; 240 msg = "(libev) system error";
233 241
… …
240 } 248 }
241} 249}
242 250
243static void *(*alloc)(void *ptr, long size); 251static void *(*alloc)(void *ptr, long size);
244 252
253void
245void ev_set_allocator (void *(*cb)(void *ptr, long size)) 254ev_set_allocator (void *(*cb)(void *ptr, long size))
246{ 255{
247 alloc = cb; 256 alloc = cb;
248} 257}
249 258
250static void * 259static void *
… …
322 gettimeofday (&tv, 0); 331 gettimeofday (&tv, 0);
323 return tv.tv_sec + tv.tv_usec * 1e-6; 332 return tv.tv_sec + tv.tv_usec * 1e-6;
324#endif 333#endif
325} 334}
326 335
327inline ev_tstamp 336ev_tstamp inline_size
328get_clock (void) 337get_clock (void)
329{ 338{
330#if EV_USE_MONOTONIC 339#if EV_USE_MONOTONIC
331 if (expect_true (have_monotonic)) 340 if (expect_true (have_monotonic))
332 { 341 {
… …
375#define array_free(stem, idx) \ 384#define array_free(stem, idx) \
376 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;
377 386
378/*****************************************************************************/ 387/*****************************************************************************/
379 388
380static void 389void noinline
381anfds_init (ANFD *base, int count)
382{
383 while (count--)
384 {
385 base->head = 0;
386 base->events = EV_NONE;
387 base->reify = 0;
388
389 ++base;
390 }
391}
392
393void
394ev_feed_event (EV_P_ void *w, int revents) 390ev_feed_event (EV_P_ void *w, int revents)
395{ 391{
396 W w_ = (W)w; 392 W w_ = (W)w;
397 393
398 if (expect_false (w_->pending)) 394 if (expect_false (w_->pending))
… …
405 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);
406 pendings [ABSPRI (w_)][w_->pending - 1].w = w_; 402 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
407 pendings [ABSPRI (w_)][w_->pending - 1].events = revents; 403 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
408} 404}
409 405
410static void 406void inline_size
411queue_events (EV_P_ W *events, int eventcnt, int type) 407queue_events (EV_P_ W *events, int eventcnt, int type)
412{ 408{
413 int i; 409 int i;
414 410
415 for (i = 0; i < eventcnt; ++i) 411 for (i = 0; i < eventcnt; ++i)
416 ev_feed_event (EV_A_ events [i], type); 412 ev_feed_event (EV_A_ events [i], type);
417} 413}
418 414
419inline 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
420fd_event (EV_P_ int fd, int revents) 431fd_event (EV_P_ int fd, int revents)
421{ 432{
422 ANFD *anfd = anfds + fd; 433 ANFD *anfd = anfds + fd;
423 struct ev_io *w; 434 ev_io *w;
424 435
425 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)
426 { 437 {
427 int ev = w->events & revents; 438 int ev = w->events & revents;
428 439
429 if (ev) 440 if (ev)
430 ev_feed_event (EV_A_ (W)w, ev); 441 ev_feed_event (EV_A_ (W)w, ev);
… …
435ev_feed_fd_event (EV_P_ int fd, int revents) 446ev_feed_fd_event (EV_P_ int fd, int revents)
436{ 447{
437 fd_event (EV_A_ fd, revents); 448 fd_event (EV_A_ fd, revents);
438} 449}
439 450
440/*****************************************************************************/ 451void inline_size
441
442inline void
443fd_reify (EV_P) 452fd_reify (EV_P)
444{ 453{
445 int i; 454 int i;
446 455
447 for (i = 0; i < fdchangecnt; ++i) 456 for (i = 0; i < fdchangecnt; ++i)
448 { 457 {
449 int fd = fdchanges [i]; 458 int fd = fdchanges [i];
450 ANFD *anfd = anfds + fd; 459 ANFD *anfd = anfds + fd;
451 struct ev_io *w; 460 ev_io *w;
452 461
453 int events = 0; 462 int events = 0;
454 463
455 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)
456 events |= w->events; 465 events |= w->events;
457 466
458#if EV_SELECT_IS_WINSOCKET 467#if EV_SELECT_IS_WINSOCKET
459 if (events) 468 if (events)
460 { 469 {
… …
464 } 473 }
465#endif 474#endif
466 475
467 anfd->reify = 0; 476 anfd->reify = 0;
468 477
469 method_modify (EV_A_ fd, anfd->events, events); 478 backend_modify (EV_A_ fd, anfd->events, events);
470 anfd->events = events; 479 anfd->events = events;
471 } 480 }
472 481
473 fdchangecnt = 0; 482 fdchangecnt = 0;
474} 483}
475 484
476static void 485void inline_size
477fd_change (EV_P_ int fd) 486fd_change (EV_P_ int fd)
478{ 487{
479 if (expect_false (anfds [fd].reify)) 488 if (expect_false (anfds [fd].reify))
480 return; 489 return;
481 490
… …
484 ++fdchangecnt; 493 ++fdchangecnt;
485 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 494 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
486 fdchanges [fdchangecnt - 1] = fd; 495 fdchanges [fdchangecnt - 1] = fd;
487} 496}
488 497
489static void 498void inline_speed
490fd_kill (EV_P_ int fd) 499fd_kill (EV_P_ int fd)
491{ 500{
492 struct ev_io *w; 501 ev_io *w;
493 502
494 while ((w = (struct ev_io *)anfds [fd].head)) 503 while ((w = (ev_io *)anfds [fd].head))
495 { 504 {
496 ev_io_stop (EV_A_ w); 505 ev_io_stop (EV_A_ w);
497 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);
498 } 507 }
499} 508}
500 509
501inline int 510int inline_size
502fd_valid (int fd) 511fd_valid (int fd)
503{ 512{
504#ifdef _WIN32 513#ifdef _WIN32
505 return _get_osfhandle (fd) != -1; 514 return _get_osfhandle (fd) != -1;
506#else 515#else
507 return fcntl (fd, F_GETFD) != -1; 516 return fcntl (fd, F_GETFD) != -1;
508#endif 517#endif
509} 518}
510 519
511/* called on EBADF to verify fds */ 520/* called on EBADF to verify fds */
512static void 521static void noinline
513fd_ebadf (EV_P) 522fd_ebadf (EV_P)
514{ 523{
515 int fd; 524 int fd;
516 525
517 for (fd = 0; fd < anfdmax; ++fd) 526 for (fd = 0; fd < anfdmax; ++fd)
… …
519 if (!fd_valid (fd) == -1 && errno == EBADF) 528 if (!fd_valid (fd) == -1 && errno == EBADF)
520 fd_kill (EV_A_ fd); 529 fd_kill (EV_A_ fd);
521} 530}
522 531
523/* 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 */
524static void 533static void noinline
525fd_enomem (EV_P) 534fd_enomem (EV_P)
526{ 535{
527 int fd; 536 int fd;
528 537
529 for (fd = anfdmax; fd--; ) 538 for (fd = anfdmax; fd--; )
… …
532 fd_kill (EV_A_ fd); 541 fd_kill (EV_A_ fd);
533 return; 542 return;
534 } 543 }
535} 544}
536 545
537/* usually called after fork if method needs to re-arm all fds from scratch */ 546/* usually called after fork if backend needs to re-arm all fds from scratch */
538static void 547static void noinline
539fd_rearm_all (EV_P) 548fd_rearm_all (EV_P)
540{ 549{
541 int fd; 550 int fd;
542 551
543 /* 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 */
… …
549 } 558 }
550} 559}
551 560
552/*****************************************************************************/ 561/*****************************************************************************/
553 562
554static void 563void inline_speed
555upheap (WT *heap, int k) 564upheap (WT *heap, int k)
556{ 565{
557 WT w = heap [k]; 566 WT w = heap [k];
558 567
559 while (k && heap [k >> 1]->at > w->at) 568 while (k && heap [k >> 1]->at > w->at)
… …
566 heap [k] = w; 575 heap [k] = w;
567 ((W)heap [k])->active = k + 1; 576 ((W)heap [k])->active = k + 1;
568 577
569} 578}
570 579
571static void 580void inline_speed
572downheap (WT *heap, int N, int k) 581downheap (WT *heap, int N, int k)
573{ 582{
574 WT w = heap [k]; 583 WT w = heap [k];
575 584
576 while (k < (N >> 1)) 585 while (k < (N >> 1))
… …
590 599
591 heap [k] = w; 600 heap [k] = w;
592 ((W)heap [k])->active = k + 1; 601 ((W)heap [k])->active = k + 1;
593} 602}
594 603
595inline void 604void inline_size
596adjustheap (WT *heap, int N, int k) 605adjustheap (WT *heap, int N, int k)
597{ 606{
598 upheap (heap, k); 607 upheap (heap, k);
599 downheap (heap, N, k); 608 downheap (heap, N, k);
600} 609}
… …
610static ANSIG *signals; 619static ANSIG *signals;
611static int signalmax; 620static int signalmax;
612 621
613static int sigpipe [2]; 622static int sigpipe [2];
614static sig_atomic_t volatile gotsig; 623static sig_atomic_t volatile gotsig;
615static struct ev_io sigev; 624static ev_io sigev;
616 625
617static void 626void inline_size
618signals_init (ANSIG *base, int count) 627signals_init (ANSIG *base, int count)
619{ 628{
620 while (count--) 629 while (count--)
621 { 630 {
622 base->head = 0; 631 base->head = 0;
… …
642 write (sigpipe [1], &signum, 1); 651 write (sigpipe [1], &signum, 1);
643 errno = old_errno; 652 errno = old_errno;
644 } 653 }
645} 654}
646 655
647void 656void noinline
648ev_feed_signal_event (EV_P_ int signum) 657ev_feed_signal_event (EV_P_ int signum)
649{ 658{
650 WL w; 659 WL w;
651 660
652#if EV_MULTIPLICITY 661#if EV_MULTIPLICITY
… …
663 for (w = signals [signum].head; w; w = w->next) 672 for (w = signals [signum].head; w; w = w->next)
664 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 673 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
665} 674}
666 675
667static void 676static void
668sigcb (EV_P_ struct ev_io *iow, int revents) 677sigcb (EV_P_ ev_io *iow, int revents)
669{ 678{
670 int signum; 679 int signum;
671 680
672 read (sigpipe [0], &revents, 1); 681 read (sigpipe [0], &revents, 1);
673 gotsig = 0; 682 gotsig = 0;
… …
675 for (signum = signalmax; signum--; ) 684 for (signum = signalmax; signum--; )
676 if (signals [signum].gotsig) 685 if (signals [signum].gotsig)
677 ev_feed_signal_event (EV_A_ signum + 1); 686 ev_feed_signal_event (EV_A_ signum + 1);
678} 687}
679 688
680static void 689void inline_size
681fd_intern (int fd) 690fd_intern (int fd)
682{ 691{
683#ifdef _WIN32 692#ifdef _WIN32
684 int arg = 1; 693 int arg = 1;
685 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 694 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
687 fcntl (fd, F_SETFD, FD_CLOEXEC); 696 fcntl (fd, F_SETFD, FD_CLOEXEC);
688 fcntl (fd, F_SETFL, O_NONBLOCK); 697 fcntl (fd, F_SETFL, O_NONBLOCK);
689#endif 698#endif
690} 699}
691 700
692static void 701static void noinline
693siginit (EV_P) 702siginit (EV_P)
694{ 703{
695 fd_intern (sigpipe [0]); 704 fd_intern (sigpipe [0]);
696 fd_intern (sigpipe [1]); 705 fd_intern (sigpipe [1]);
697 706
… …
700 ev_unref (EV_A); /* child watcher should not keep loop alive */ 709 ev_unref (EV_A); /* child watcher should not keep loop alive */
701} 710}
702 711
703/*****************************************************************************/ 712/*****************************************************************************/
704 713
705static struct ev_child *childs [PID_HASHSIZE]; 714static ev_child *childs [PID_HASHSIZE];
706 715
707#ifndef _WIN32 716#ifndef _WIN32
708 717
709static struct ev_signal childev; 718static ev_signal childev;
710 719
711#ifndef WCONTINUED 720#ifndef WCONTINUED
712# define WCONTINUED 0 721# define WCONTINUED 0
713#endif 722#endif
714 723
715static void 724void inline_speed
716child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 725child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
717{ 726{
718 struct ev_child *w; 727 ev_child *w;
719 728
720 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 729 for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
721 if (w->pid == pid || !w->pid) 730 if (w->pid == pid || !w->pid)
722 { 731 {
723 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 732 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
724 w->rpid = pid; 733 w->rpid = pid;
725 w->rstatus = status; 734 w->rstatus = status;
726 ev_feed_event (EV_A_ (W)w, EV_CHILD); 735 ev_feed_event (EV_A_ (W)w, EV_CHILD);
727 } 736 }
728} 737}
729 738
730static void 739static void
731childcb (EV_P_ struct ev_signal *sw, int revents) 740childcb (EV_P_ ev_signal *sw, int revents)
732{ 741{
733 int pid, status; 742 int pid, status;
734 743
735 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 744 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
736 { 745 {
737 /* make sure we are called again until all childs have been reaped */ 746 /* make sure we are called again until all childs have been reaped */
747 /* we need to do it this way so that the callback gets called before we continue */
738 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 748 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
739 749
740 child_reap (EV_A_ sw, pid, pid, status); 750 child_reap (EV_A_ sw, pid, pid, status);
741 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 751 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
742 } 752 }
743} 753}
744 754
745#endif 755#endif
746 756
… …
773{ 783{
774 return EV_VERSION_MINOR; 784 return EV_VERSION_MINOR;
775} 785}
776 786
777/* return true if we are running with elevated privileges and should ignore env variables */ 787/* return true if we are running with elevated privileges and should ignore env variables */
778static int 788int inline_size
779enable_secure (void) 789enable_secure (void)
780{ 790{
781#ifdef _WIN32 791#ifdef _WIN32
782 return 0; 792 return 0;
783#else 793#else
… …
785 || getgid () != getegid (); 795 || getgid () != getegid ();
786#endif 796#endif
787} 797}
788 798
789unsigned int 799unsigned int
790ev_method (EV_P) 800ev_supported_backends (void)
791{ 801{
792 return method; 802 unsigned int flags = 0;
803
804 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
805 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
806 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
807 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
808 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
809
810 return flags;
811}
812
813unsigned int
814ev_recommended_backends (void)
815{
816 unsigned int flags = ev_supported_backends ();
817
818#ifndef __NetBSD__
819 /* kqueue is borked on everything but netbsd apparently */
820 /* it usually doesn't work correctly on anything but sockets and pipes */
821 flags &= ~EVBACKEND_KQUEUE;
822#endif
823#ifdef __APPLE__
824 // flags &= ~EVBACKEND_KQUEUE; for documentation
825 flags &= ~EVBACKEND_POLL;
826#endif
827
828 return flags;
829}
830
831unsigned int
832ev_embeddable_backends (void)
833{
834 return EVBACKEND_EPOLL
835 | EVBACKEND_KQUEUE
836 | EVBACKEND_PORT;
837}
838
839unsigned int
840ev_backend (EV_P)
841{
842 return backend;
793} 843}
794 844
795static void 845static void
796loop_init (EV_P_ unsigned int flags) 846loop_init (EV_P_ unsigned int flags)
797{ 847{
798 if (!method) 848 if (!backend)
799 { 849 {
800#if EV_USE_MONOTONIC 850#if EV_USE_MONOTONIC
801 { 851 {
802 struct timespec ts; 852 struct timespec ts;
803 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 853 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
808 ev_rt_now = ev_time (); 858 ev_rt_now = ev_time ();
809 mn_now = get_clock (); 859 mn_now = get_clock ();
810 now_floor = mn_now; 860 now_floor = mn_now;
811 rtmn_diff = ev_rt_now - mn_now; 861 rtmn_diff = ev_rt_now - mn_now;
812 862
813 if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 863 if (!(flags & EVFLAG_NOENV)
864 && !enable_secure ()
865 && getenv ("LIBEV_FLAGS"))
814 flags = atoi (getenv ("LIBEV_FLAGS")); 866 flags = atoi (getenv ("LIBEV_FLAGS"));
815 867
816 if (!(flags & 0x0000ffff)) 868 if (!(flags & 0x0000ffffUL))
817 flags |= 0x0000ffff; 869 flags |= ev_recommended_backends ();
818 870
819 method = 0; 871 backend = 0;
820#if EV_USE_PORT 872#if EV_USE_PORT
821 if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); 873 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
822#endif 874#endif
823#if EV_USE_KQUEUE 875#if EV_USE_KQUEUE
824 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 876 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
825#endif 877#endif
826#if EV_USE_EPOLL 878#if EV_USE_EPOLL
827 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 879 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
828#endif 880#endif
829#if EV_USE_POLL 881#if EV_USE_POLL
830 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 882 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
831#endif 883#endif
832#if EV_USE_SELECT 884#if EV_USE_SELECT
833 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 885 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
834#endif 886#endif
835 887
836 ev_init (&sigev, sigcb); 888 ev_init (&sigev, sigcb);
837 ev_set_priority (&sigev, EV_MAXPRI); 889 ev_set_priority (&sigev, EV_MAXPRI);
838 } 890 }
… …
842loop_destroy (EV_P) 894loop_destroy (EV_P)
843{ 895{
844 int i; 896 int i;
845 897
846#if EV_USE_PORT 898#if EV_USE_PORT
847 if (method == EVMETHOD_PORT ) port_destroy (EV_A); 899 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
848#endif 900#endif
849#if EV_USE_KQUEUE 901#if EV_USE_KQUEUE
850 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 902 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
851#endif 903#endif
852#if EV_USE_EPOLL 904#if EV_USE_EPOLL
853 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 905 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
854#endif 906#endif
855#if EV_USE_POLL 907#if EV_USE_POLL
856 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 908 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
857#endif 909#endif
858#if EV_USE_SELECT 910#if EV_USE_SELECT
859 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 911 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
860#endif 912#endif
861 913
862 for (i = NUMPRI; i--; ) 914 for (i = NUMPRI; i--; )
863 array_free (pending, [i]); 915 array_free (pending, [i]);
864 916
865 /* have to use the microsoft-never-gets-it-right macro */ 917 /* have to use the microsoft-never-gets-it-right macro */
866 array_free (fdchange, EMPTY0); 918 array_free (fdchange, EMPTY0);
867 array_free (timer, EMPTY0); 919 array_free (timer, EMPTY0);
868#if EV_PERIODICS 920#if EV_PERIODIC_ENABLE
869 array_free (periodic, EMPTY0); 921 array_free (periodic, EMPTY0);
870#endif 922#endif
871 array_free (idle, EMPTY0); 923 array_free (idle, EMPTY0);
872 array_free (prepare, EMPTY0); 924 array_free (prepare, EMPTY0);
873 array_free (check, EMPTY0); 925 array_free (check, EMPTY0);
874 926
875 method = 0; 927 backend = 0;
876} 928}
877 929
878static void 930static void
879loop_fork (EV_P) 931loop_fork (EV_P)
880{ 932{
881#if EV_USE_PORT 933#if EV_USE_PORT
882 if (method == EVMETHOD_PORT ) port_fork (EV_A); 934 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
883#endif 935#endif
884#if EV_USE_KQUEUE 936#if EV_USE_KQUEUE
885 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 937 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
886#endif 938#endif
887#if EV_USE_EPOLL 939#if EV_USE_EPOLL
888 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 940 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
889#endif 941#endif
890 942
891 if (ev_is_active (&sigev)) 943 if (ev_is_active (&sigev))
892 { 944 {
893 /* default loop */ 945 /* default loop */
… …
914 966
915 memset (loop, 0, sizeof (struct ev_loop)); 967 memset (loop, 0, sizeof (struct ev_loop));
916 968
917 loop_init (EV_A_ flags); 969 loop_init (EV_A_ flags);
918 970
919 if (ev_method (EV_A)) 971 if (ev_backend (EV_A))
920 return loop; 972 return loop;
921 973
922 return 0; 974 return 0;
923} 975}
924 976
… …
957 ev_default_loop_ptr = 1; 1009 ev_default_loop_ptr = 1;
958#endif 1010#endif
959 1011
960 loop_init (EV_A_ flags); 1012 loop_init (EV_A_ flags);
961 1013
962 if (ev_method (EV_A)) 1014 if (ev_backend (EV_A))
963 { 1015 {
964 siginit (EV_A); 1016 siginit (EV_A);
965 1017
966#ifndef _WIN32 1018#ifndef _WIN32
967 ev_signal_init (&childev, childcb, SIGCHLD); 1019 ev_signal_init (&childev, childcb, SIGCHLD);
… …
1003{ 1055{
1004#if EV_MULTIPLICITY 1056#if EV_MULTIPLICITY
1005 struct ev_loop *loop = ev_default_loop_ptr; 1057 struct ev_loop *loop = ev_default_loop_ptr;
1006#endif 1058#endif
1007 1059
1008 if (method) 1060 if (backend)
1009 postfork = 1; 1061 postfork = 1;
1010} 1062}
1011 1063
1012/*****************************************************************************/ 1064/*****************************************************************************/
1013 1065
1014static int 1066int inline_size
1015any_pending (EV_P) 1067any_pending (EV_P)
1016{ 1068{
1017 int pri; 1069 int pri;
1018 1070
1019 for (pri = NUMPRI; pri--; ) 1071 for (pri = NUMPRI; pri--; )
… …
1021 return 1; 1073 return 1;
1022 1074
1023 return 0; 1075 return 0;
1024} 1076}
1025 1077
1026inline void 1078void inline_speed
1027call_pending (EV_P) 1079call_pending (EV_P)
1028{ 1080{
1029 int pri; 1081 int pri;
1030 1082
1031 for (pri = NUMPRI; pri--; ) 1083 for (pri = NUMPRI; pri--; )
… …
1033 { 1085 {
1034 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1086 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1035 1087
1036 if (expect_true (p->w)) 1088 if (expect_true (p->w))
1037 { 1089 {
1090 assert (("non-pending watcher on pending list", p->w->pending));
1091
1038 p->w->pending = 0; 1092 p->w->pending = 0;
1039 EV_CB_INVOKE (p->w, p->events); 1093 EV_CB_INVOKE (p->w, p->events);
1040 } 1094 }
1041 } 1095 }
1042} 1096}
1043 1097
1044inline void 1098void inline_size
1045timers_reify (EV_P) 1099timers_reify (EV_P)
1046{ 1100{
1047 while (timercnt && ((WT)timers [0])->at <= mn_now) 1101 while (timercnt && ((WT)timers [0])->at <= mn_now)
1048 { 1102 {
1049 struct ev_timer *w = timers [0]; 1103 ev_timer *w = timers [0];
1050 1104
1051 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1105 assert (("inactive timer on timer heap detected", ev_is_active (w)));
1052 1106
1053 /* first reschedule or stop timer */ 1107 /* first reschedule or stop timer */
1054 if (w->repeat) 1108 if (w->repeat)
… …
1066 1120
1067 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1121 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1068 } 1122 }
1069} 1123}
1070 1124
1071#if EV_PERIODICS 1125#if EV_PERIODIC_ENABLE
1072inline void 1126void inline_size
1073periodics_reify (EV_P) 1127periodics_reify (EV_P)
1074{ 1128{
1075 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1129 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1076 { 1130 {
1077 struct ev_periodic *w = periodics [0]; 1131 ev_periodic *w = periodics [0];
1078 1132
1079 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1133 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1080 1134
1081 /* first reschedule or stop timer */ 1135 /* first reschedule or stop timer */
1082 if (w->reschedule_cb) 1136 if (w->reschedule_cb)
… …
1096 1150
1097 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1151 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1098 } 1152 }
1099} 1153}
1100 1154
1101static void 1155static void noinline
1102periodics_reschedule (EV_P) 1156periodics_reschedule (EV_P)
1103{ 1157{
1104 int i; 1158 int i;
1105 1159
1106 /* adjust periodics after time jump */ 1160 /* adjust periodics after time jump */
1107 for (i = 0; i < periodiccnt; ++i) 1161 for (i = 0; i < periodiccnt; ++i)
1108 { 1162 {
1109 struct ev_periodic *w = periodics [i]; 1163 ev_periodic *w = periodics [i];
1110 1164
1111 if (w->reschedule_cb) 1165 if (w->reschedule_cb)
1112 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1166 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1113 else if (w->interval) 1167 else if (w->interval)
1114 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1168 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
… …
1118 for (i = periodiccnt >> 1; i--; ) 1172 for (i = periodiccnt >> 1; i--; )
1119 downheap ((WT *)periodics, periodiccnt, i); 1173 downheap ((WT *)periodics, periodiccnt, i);
1120} 1174}
1121#endif 1175#endif
1122 1176
1123inline int 1177int inline_size
1124time_update_monotonic (EV_P) 1178time_update_monotonic (EV_P)
1125{ 1179{
1126 mn_now = get_clock (); 1180 mn_now = get_clock ();
1127 1181
1128 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1182 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
… …
1136 ev_rt_now = ev_time (); 1190 ev_rt_now = ev_time ();
1137 return 1; 1191 return 1;
1138 } 1192 }
1139} 1193}
1140 1194
1141inline void 1195void inline_size
1142time_update (EV_P) 1196time_update (EV_P)
1143{ 1197{
1144 int i; 1198 int i;
1145 1199
1146#if EV_USE_MONOTONIC 1200#if EV_USE_MONOTONIC
… …
1148 { 1202 {
1149 if (time_update_monotonic (EV_A)) 1203 if (time_update_monotonic (EV_A))
1150 { 1204 {
1151 ev_tstamp odiff = rtmn_diff; 1205 ev_tstamp odiff = rtmn_diff;
1152 1206
1153 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1207 /* loop a few times, before making important decisions.
1208 * on the choice of "4": one iteration isn't enough,
1209 * in case we get preempted during the calls to
1210 * ev_time and get_clock. a second call is almost guarenteed
1211 * to succeed in that case, though. and looping a few more times
1212 * doesn't hurt either as we only do this on time-jumps or
1213 * in the unlikely event of getting preempted here.
1214 */
1215 for (i = 4; --i; )
1154 { 1216 {
1155 rtmn_diff = ev_rt_now - mn_now; 1217 rtmn_diff = ev_rt_now - mn_now;
1156 1218
1157 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1219 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1158 return; /* all is well */ 1220 return; /* all is well */
… …
1160 ev_rt_now = ev_time (); 1222 ev_rt_now = ev_time ();
1161 mn_now = get_clock (); 1223 mn_now = get_clock ();
1162 now_floor = mn_now; 1224 now_floor = mn_now;
1163 } 1225 }
1164 1226
1165# if EV_PERIODICS 1227# if EV_PERIODIC_ENABLE
1166 periodics_reschedule (EV_A); 1228 periodics_reschedule (EV_A);
1167# endif 1229# endif
1168 /* no timer adjustment, as the monotonic clock doesn't jump */ 1230 /* no timer adjustment, as the monotonic clock doesn't jump */
1169 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1231 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1170 } 1232 }
… …
1174 { 1236 {
1175 ev_rt_now = ev_time (); 1237 ev_rt_now = ev_time ();
1176 1238
1177 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1239 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1178 { 1240 {
1179#if EV_PERIODICS 1241#if EV_PERIODIC_ENABLE
1180 periodics_reschedule (EV_A); 1242 periodics_reschedule (EV_A);
1181#endif 1243#endif
1182 1244
1183 /* adjust timers. this is easy, as the offset is the same for all */ 1245 /* adjust timers. this is easy, as the offset is the same for all */
1184 for (i = 0; i < timercnt; ++i) 1246 for (i = 0; i < timercnt; ++i)
… …
1204static int loop_done; 1266static int loop_done;
1205 1267
1206void 1268void
1207ev_loop (EV_P_ int flags) 1269ev_loop (EV_P_ int flags)
1208{ 1270{
1209 double block;
1210 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1271 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1272 ? EVUNLOOP_ONE
1273 : EVUNLOOP_CANCEL;
1211 1274
1212 while (activecnt) 1275 while (activecnt)
1213 { 1276 {
1214 /* queue check watchers (and execute them) */ 1277 /* queue check watchers (and execute them) */
1215 if (expect_false (preparecnt)) 1278 if (expect_false (preparecnt))
… …
1224 1287
1225 /* update fd-related kernel structures */ 1288 /* update fd-related kernel structures */
1226 fd_reify (EV_A); 1289 fd_reify (EV_A);
1227 1290
1228 /* calculate blocking time */ 1291 /* calculate blocking time */
1292 {
1293 double block;
1229 1294
1230 /* we only need this for !monotonic clock or timers, but as we basically 1295 if (flags & EVLOOP_NONBLOCK || idlecnt)
1231 always have timers, we just calculate it always */ 1296 block = 0.; /* do not block at all */
1297 else
1298 {
1299 /* update time to cancel out callback processing overhead */
1232#if EV_USE_MONOTONIC 1300#if EV_USE_MONOTONIC
1233 if (expect_true (have_monotonic)) 1301 if (expect_true (have_monotonic))
1234 time_update_monotonic (EV_A); 1302 time_update_monotonic (EV_A);
1235 else 1303 else
1236#endif 1304#endif
1237 { 1305 {
1238 ev_rt_now = ev_time (); 1306 ev_rt_now = ev_time ();
1239 mn_now = ev_rt_now; 1307 mn_now = ev_rt_now;
1240 } 1308 }
1241 1309
1242 if (flags & EVLOOP_NONBLOCK || idlecnt)
1243 block = 0.;
1244 else
1245 {
1246 block = MAX_BLOCKTIME; 1310 block = MAX_BLOCKTIME;
1247 1311
1248 if (timercnt) 1312 if (timercnt)
1249 { 1313 {
1250 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1314 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1251 if (block > to) block = to; 1315 if (block > to) block = to;
1252 } 1316 }
1253 1317
1254#if EV_PERIODICS 1318#if EV_PERIODIC_ENABLE
1255 if (periodiccnt) 1319 if (periodiccnt)
1256 { 1320 {
1257 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1321 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1258 if (block > to) block = to; 1322 if (block > to) block = to;
1259 } 1323 }
1260#endif 1324#endif
1261 1325
1262 if (expect_false (block < 0.)) block = 0.; 1326 if (expect_false (block < 0.)) block = 0.;
1263 } 1327 }
1264 1328
1265 method_poll (EV_A_ block); 1329 backend_poll (EV_A_ block);
1330 }
1266 1331
1267 /* update ev_rt_now, do magic */ 1332 /* update ev_rt_now, do magic */
1268 time_update (EV_A); 1333 time_update (EV_A);
1269 1334
1270 /* queue pending timers and reschedule them */ 1335 /* queue pending timers and reschedule them */
1271 timers_reify (EV_A); /* relative timers called last */ 1336 timers_reify (EV_A); /* relative timers called last */
1272#if EV_PERIODICS 1337#if EV_PERIODIC_ENABLE
1273 periodics_reify (EV_A); /* absolute timers called first */ 1338 periodics_reify (EV_A); /* absolute timers called first */
1274#endif 1339#endif
1275 1340
1276 /* queue idle watchers unless io or timers are pending */ 1341 /* queue idle watchers unless other events are pending */
1277 if (idlecnt && !any_pending (EV_A)) 1342 if (idlecnt && !any_pending (EV_A))
1278 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1343 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1279 1344
1280 /* queue check watchers, to be executed first */ 1345 /* queue check watchers, to be executed first */
1281 if (expect_false (checkcnt)) 1346 if (expect_false (checkcnt))
… …
1285 1350
1286 if (expect_false (loop_done)) 1351 if (expect_false (loop_done))
1287 break; 1352 break;
1288 } 1353 }
1289 1354
1290 if (loop_done != 2) 1355 if (loop_done == EVUNLOOP_ONE)
1291 loop_done = 0; 1356 loop_done = EVUNLOOP_CANCEL;
1292} 1357}
1293 1358
1294void 1359void
1295ev_unloop (EV_P_ int how) 1360ev_unloop (EV_P_ int how)
1296{ 1361{
1297 loop_done = how; 1362 loop_done = how;
1298} 1363}
1299 1364
1300/*****************************************************************************/ 1365/*****************************************************************************/
1301 1366
1302inline void 1367void inline_size
1303wlist_add (WL *head, WL elem) 1368wlist_add (WL *head, WL elem)
1304{ 1369{
1305 elem->next = *head; 1370 elem->next = *head;
1306 *head = elem; 1371 *head = elem;
1307} 1372}
1308 1373
1309inline void 1374void inline_size
1310wlist_del (WL *head, WL elem) 1375wlist_del (WL *head, WL elem)
1311{ 1376{
1312 while (*head) 1377 while (*head)
1313 { 1378 {
1314 if (*head == elem) 1379 if (*head == elem)
… …
1319 1384
1320 head = &(*head)->next; 1385 head = &(*head)->next;
1321 } 1386 }
1322} 1387}
1323 1388
1324inline void 1389void inline_speed
1325ev_clear_pending (EV_P_ W w) 1390ev_clear_pending (EV_P_ W w)
1326{ 1391{
1327 if (w->pending) 1392 if (w->pending)
1328 { 1393 {
1329 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1394 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1330 w->pending = 0; 1395 w->pending = 0;
1331 } 1396 }
1332} 1397}
1333 1398
1334inline void 1399void inline_speed
1335ev_start (EV_P_ W w, int active) 1400ev_start (EV_P_ W w, int active)
1336{ 1401{
1337 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1402 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1338 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1403 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1339 1404
1340 w->active = active; 1405 w->active = active;
1341 ev_ref (EV_A); 1406 ev_ref (EV_A);
1342} 1407}
1343 1408
1344inline void 1409void inline_size
1345ev_stop (EV_P_ W w) 1410ev_stop (EV_P_ W w)
1346{ 1411{
1347 ev_unref (EV_A); 1412 ev_unref (EV_A);
1348 w->active = 0; 1413 w->active = 0;
1349} 1414}
1350 1415
1351/*****************************************************************************/ 1416/*****************************************************************************/
1352 1417
1353void 1418void
1354ev_io_start (EV_P_ struct ev_io *w) 1419ev_io_start (EV_P_ ev_io *w)
1355{ 1420{
1356 int fd = w->fd; 1421 int fd = w->fd;
1357 1422
1358 if (expect_false (ev_is_active (w))) 1423 if (expect_false (ev_is_active (w)))
1359 return; 1424 return;
… …
1366 1431
1367 fd_change (EV_A_ fd); 1432 fd_change (EV_A_ fd);
1368} 1433}
1369 1434
1370void 1435void
1371ev_io_stop (EV_P_ struct ev_io *w) 1436ev_io_stop (EV_P_ ev_io *w)
1372{ 1437{
1373 ev_clear_pending (EV_A_ (W)w); 1438 ev_clear_pending (EV_A_ (W)w);
1374 if (expect_false (!ev_is_active (w))) 1439 if (expect_false (!ev_is_active (w)))
1375 return; 1440 return;
1376 1441
… …
1381 1446
1382 fd_change (EV_A_ w->fd); 1447 fd_change (EV_A_ w->fd);
1383} 1448}
1384 1449
1385void 1450void
1386ev_timer_start (EV_P_ struct ev_timer *w) 1451ev_timer_start (EV_P_ ev_timer *w)
1387{ 1452{
1388 if (expect_false (ev_is_active (w))) 1453 if (expect_false (ev_is_active (w)))
1389 return; 1454 return;
1390 1455
1391 ((WT)w)->at += mn_now; 1456 ((WT)w)->at += mn_now;
1392 1457
1393 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1458 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1394 1459
1395 ev_start (EV_A_ (W)w, ++timercnt); 1460 ev_start (EV_A_ (W)w, ++timercnt);
1396 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1461 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1397 timers [timercnt - 1] = w; 1462 timers [timercnt - 1] = w;
1398 upheap ((WT *)timers, timercnt - 1); 1463 upheap ((WT *)timers, timercnt - 1);
1399 1464
1400 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1465 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1401} 1466}
1402 1467
1403void 1468void
1404ev_timer_stop (EV_P_ struct ev_timer *w) 1469ev_timer_stop (EV_P_ ev_timer *w)
1405{ 1470{
1406 ev_clear_pending (EV_A_ (W)w); 1471 ev_clear_pending (EV_A_ (W)w);
1407 if (expect_false (!ev_is_active (w))) 1472 if (expect_false (!ev_is_active (w)))
1408 return; 1473 return;
1409 1474
… …
1419 1484
1420 ev_stop (EV_A_ (W)w); 1485 ev_stop (EV_A_ (W)w);
1421} 1486}
1422 1487
1423void 1488void
1424ev_timer_again (EV_P_ struct ev_timer *w) 1489ev_timer_again (EV_P_ ev_timer *w)
1425{ 1490{
1426 if (ev_is_active (w)) 1491 if (ev_is_active (w))
1427 { 1492 {
1428 if (w->repeat) 1493 if (w->repeat)
1429 { 1494 {
… …
1438 w->at = w->repeat; 1503 w->at = w->repeat;
1439 ev_timer_start (EV_A_ w); 1504 ev_timer_start (EV_A_ w);
1440 } 1505 }
1441} 1506}
1442 1507
1443#if EV_PERIODICS 1508#if EV_PERIODIC_ENABLE
1444void 1509void
1445ev_periodic_start (EV_P_ struct ev_periodic *w) 1510ev_periodic_start (EV_P_ ev_periodic *w)
1446{ 1511{
1447 if (expect_false (ev_is_active (w))) 1512 if (expect_false (ev_is_active (w)))
1448 return; 1513 return;
1449 1514
1450 if (w->reschedule_cb) 1515 if (w->reschedule_cb)
… …
1455 /* this formula differs from the one in periodic_reify because we do not always round up */ 1520 /* this formula differs from the one in periodic_reify because we do not always round up */
1456 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1521 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1457 } 1522 }
1458 1523
1459 ev_start (EV_A_ (W)w, ++periodiccnt); 1524 ev_start (EV_A_ (W)w, ++periodiccnt);
1460 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1525 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1461 periodics [periodiccnt - 1] = w; 1526 periodics [periodiccnt - 1] = w;
1462 upheap ((WT *)periodics, periodiccnt - 1); 1527 upheap ((WT *)periodics, periodiccnt - 1);
1463 1528
1464 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1529 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1465} 1530}
1466 1531
1467void 1532void
1468ev_periodic_stop (EV_P_ struct ev_periodic *w) 1533ev_periodic_stop (EV_P_ ev_periodic *w)
1469{ 1534{
1470 ev_clear_pending (EV_A_ (W)w); 1535 ev_clear_pending (EV_A_ (W)w);
1471 if (expect_false (!ev_is_active (w))) 1536 if (expect_false (!ev_is_active (w)))
1472 return; 1537 return;
1473 1538
… …
1481 1546
1482 ev_stop (EV_A_ (W)w); 1547 ev_stop (EV_A_ (W)w);
1483} 1548}
1484 1549
1485void 1550void
1486ev_periodic_again (EV_P_ struct ev_periodic *w) 1551ev_periodic_again (EV_P_ ev_periodic *w)
1487{ 1552{
1488 /* TODO: use adjustheap and recalculation */ 1553 /* TODO: use adjustheap and recalculation */
1489 ev_periodic_stop (EV_A_ w); 1554 ev_periodic_stop (EV_A_ w);
1490 ev_periodic_start (EV_A_ w); 1555 ev_periodic_start (EV_A_ w);
1491} 1556}
1492#endif 1557#endif
1493 1558
1494void 1559void
1495ev_idle_start (EV_P_ struct ev_idle *w) 1560ev_idle_start (EV_P_ ev_idle *w)
1496{ 1561{
1497 if (expect_false (ev_is_active (w))) 1562 if (expect_false (ev_is_active (w)))
1498 return; 1563 return;
1499 1564
1500 ev_start (EV_A_ (W)w, ++idlecnt); 1565 ev_start (EV_A_ (W)w, ++idlecnt);
1501 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); 1566 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1502 idles [idlecnt - 1] = w; 1567 idles [idlecnt - 1] = w;
1503} 1568}
1504 1569
1505void 1570void
1506ev_idle_stop (EV_P_ struct ev_idle *w) 1571ev_idle_stop (EV_P_ ev_idle *w)
1507{ 1572{
1508 ev_clear_pending (EV_A_ (W)w); 1573 ev_clear_pending (EV_A_ (W)w);
1509 if (expect_false (!ev_is_active (w))) 1574 if (expect_false (!ev_is_active (w)))
1510 return; 1575 return;
1511 1576
1577 {
1578 int active = ((W)w)->active;
1512 idles [((W)w)->active - 1] = idles [--idlecnt]; 1579 idles [active - 1] = idles [--idlecnt];
1580 ((W)idles [active - 1])->active = active;
1581 }
1582
1513 ev_stop (EV_A_ (W)w); 1583 ev_stop (EV_A_ (W)w);
1514} 1584}
1515 1585
1516void 1586void
1517ev_prepare_start (EV_P_ struct ev_prepare *w) 1587ev_prepare_start (EV_P_ ev_prepare *w)
1518{ 1588{
1519 if (expect_false (ev_is_active (w))) 1589 if (expect_false (ev_is_active (w)))
1520 return; 1590 return;
1521 1591
1522 ev_start (EV_A_ (W)w, ++preparecnt); 1592 ev_start (EV_A_ (W)w, ++preparecnt);
1523 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 1593 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1524 prepares [preparecnt - 1] = w; 1594 prepares [preparecnt - 1] = w;
1525} 1595}
1526 1596
1527void 1597void
1528ev_prepare_stop (EV_P_ struct ev_prepare *w) 1598ev_prepare_stop (EV_P_ ev_prepare *w)
1529{ 1599{
1530 ev_clear_pending (EV_A_ (W)w); 1600 ev_clear_pending (EV_A_ (W)w);
1531 if (expect_false (!ev_is_active (w))) 1601 if (expect_false (!ev_is_active (w)))
1532 return; 1602 return;
1533 1603
1604 {
1605 int active = ((W)w)->active;
1534 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1606 prepares [active - 1] = prepares [--preparecnt];
1607 ((W)prepares [active - 1])->active = active;
1608 }
1609
1535 ev_stop (EV_A_ (W)w); 1610 ev_stop (EV_A_ (W)w);
1536} 1611}
1537 1612
1538void 1613void
1539ev_check_start (EV_P_ struct ev_check *w) 1614ev_check_start (EV_P_ ev_check *w)
1540{ 1615{
1541 if (expect_false (ev_is_active (w))) 1616 if (expect_false (ev_is_active (w)))
1542 return; 1617 return;
1543 1618
1544 ev_start (EV_A_ (W)w, ++checkcnt); 1619 ev_start (EV_A_ (W)w, ++checkcnt);
1545 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); 1620 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1546 checks [checkcnt - 1] = w; 1621 checks [checkcnt - 1] = w;
1547} 1622}
1548 1623
1549void 1624void
1550ev_check_stop (EV_P_ struct ev_check *w) 1625ev_check_stop (EV_P_ ev_check *w)
1551{ 1626{
1552 ev_clear_pending (EV_A_ (W)w); 1627 ev_clear_pending (EV_A_ (W)w);
1553 if (expect_false (!ev_is_active (w))) 1628 if (expect_false (!ev_is_active (w)))
1554 return; 1629 return;
1555 1630
1631 {
1632 int active = ((W)w)->active;
1556 checks [((W)w)->active - 1] = checks [--checkcnt]; 1633 checks [active - 1] = checks [--checkcnt];
1634 ((W)checks [active - 1])->active = active;
1635 }
1636
1557 ev_stop (EV_A_ (W)w); 1637 ev_stop (EV_A_ (W)w);
1558} 1638}
1559 1639
1560#ifndef SA_RESTART 1640#ifndef SA_RESTART
1561# define SA_RESTART 0 1641# define SA_RESTART 0
1562#endif 1642#endif
1563 1643
1564void 1644void
1565ev_signal_start (EV_P_ struct ev_signal *w) 1645ev_signal_start (EV_P_ ev_signal *w)
1566{ 1646{
1567#if EV_MULTIPLICITY 1647#if EV_MULTIPLICITY
1568 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1648 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1569#endif 1649#endif
1570 if (expect_false (ev_is_active (w))) 1650 if (expect_false (ev_is_active (w)))
… …
1589#endif 1669#endif
1590 } 1670 }
1591} 1671}
1592 1672
1593void 1673void
1594ev_signal_stop (EV_P_ struct ev_signal *w) 1674ev_signal_stop (EV_P_ ev_signal *w)
1595{ 1675{
1596 ev_clear_pending (EV_A_ (W)w); 1676 ev_clear_pending (EV_A_ (W)w);
1597 if (expect_false (!ev_is_active (w))) 1677 if (expect_false (!ev_is_active (w)))
1598 return; 1678 return;
1599 1679
… …
1603 if (!signals [w->signum - 1].head) 1683 if (!signals [w->signum - 1].head)
1604 signal (w->signum, SIG_DFL); 1684 signal (w->signum, SIG_DFL);
1605} 1685}
1606 1686
1607void 1687void
1608ev_child_start (EV_P_ struct ev_child *w) 1688ev_child_start (EV_P_ ev_child *w)
1609{ 1689{
1610#if EV_MULTIPLICITY 1690#if EV_MULTIPLICITY
1611 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1691 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1612#endif 1692#endif
1613 if (expect_false (ev_is_active (w))) 1693 if (expect_false (ev_is_active (w)))
… …
1616 ev_start (EV_A_ (W)w, 1); 1696 ev_start (EV_A_ (W)w, 1);
1617 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1697 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1618} 1698}
1619 1699
1620void 1700void
1621ev_child_stop (EV_P_ struct ev_child *w) 1701ev_child_stop (EV_P_ ev_child *w)
1622{ 1702{
1623 ev_clear_pending (EV_A_ (W)w); 1703 ev_clear_pending (EV_A_ (W)w);
1624 if (expect_false (!ev_is_active (w))) 1704 if (expect_false (!ev_is_active (w)))
1625 return; 1705 return;
1626 1706
1627 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1707 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1628 ev_stop (EV_A_ (W)w); 1708 ev_stop (EV_A_ (W)w);
1629} 1709}
1630 1710
1711#if EV_EMBED_ENABLE
1712void noinline
1713ev_embed_sweep (EV_P_ ev_embed *w)
1714{
1715 ev_loop (w->loop, EVLOOP_NONBLOCK);
1716}
1717
1718static void
1719embed_cb (EV_P_ ev_io *io, int revents)
1720{
1721 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1722
1723 if (ev_cb (w))
1724 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1725 else
1726 ev_embed_sweep (loop, w);
1727}
1728
1729void
1730ev_embed_start (EV_P_ ev_embed *w)
1731{
1732 if (expect_false (ev_is_active (w)))
1733 return;
1734
1735 {
1736 struct ev_loop *loop = w->loop;
1737 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1738 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1739 }
1740
1741 ev_set_priority (&w->io, ev_priority (w));
1742 ev_io_start (EV_A_ &w->io);
1743
1744 ev_start (EV_A_ (W)w, 1);
1745}
1746
1747void
1748ev_embed_stop (EV_P_ ev_embed *w)
1749{
1750 ev_clear_pending (EV_A_ (W)w);
1751 if (expect_false (!ev_is_active (w)))
1752 return;
1753
1754 ev_io_stop (EV_A_ &w->io);
1755
1756 ev_stop (EV_A_ (W)w);
1757}
1758#endif
1759
1760#if EV_STAT_ENABLE
1761
1762# ifdef _WIN32
1763# define lstat(a,b) stat(a,b)
1764# endif
1765
1766void
1767ev_stat_stat (EV_P_ ev_stat *w)
1768{
1769 if (lstat (w->path, &w->attr) < 0)
1770 w->attr.st_nlink = 0;
1771 else if (!w->attr.st_nlink)
1772 w->attr.st_nlink = 1;
1773}
1774
1775static void
1776stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1777{
1778 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1779
1780 /* we copy this here each the time so that */
1781 /* prev has the old value when the callback gets invoked */
1782 w->prev = w->attr;
1783 ev_stat_stat (EV_A_ w);
1784
1785 if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
1786 ev_feed_event (EV_A_ w, EV_STAT);
1787}
1788
1789void
1790ev_stat_start (EV_P_ ev_stat *w)
1791{
1792 if (expect_false (ev_is_active (w)))
1793 return;
1794
1795 /* since we use memcmp, we need to clear any padding data etc. */
1796 memset (&w->prev, 0, sizeof (ev_statdata));
1797 memset (&w->attr, 0, sizeof (ev_statdata));
1798
1799 ev_stat_stat (EV_A_ w);
1800
1801 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1802 ev_set_priority (&w->timer, ev_priority (w));
1803 ev_timer_start (EV_A_ &w->timer);
1804
1805 ev_start (EV_A_ (W)w, 1);
1806}
1807
1808void
1809ev_stat_stop (EV_P_ ev_stat *w)
1810{
1811 ev_clear_pending (EV_A_ (W)w);
1812 if (expect_false (!ev_is_active (w)))
1813 return;
1814
1815 ev_timer_stop (EV_A_ &w->timer);
1816
1817 ev_stop (EV_A_ (W)w);
1818}
1819#endif
1820
1631/*****************************************************************************/ 1821/*****************************************************************************/
1632 1822
1633struct ev_once 1823struct ev_once
1634{ 1824{
1635 struct ev_io io; 1825 ev_io io;
1636 struct ev_timer to; 1826 ev_timer to;
1637 void (*cb)(int revents, void *arg); 1827 void (*cb)(int revents, void *arg);
1638 void *arg; 1828 void *arg;
1639}; 1829};
1640 1830
1641static void 1831static void
… …
1650 1840
1651 cb (revents, arg); 1841 cb (revents, arg);
1652} 1842}
1653 1843
1654static void 1844static void
1655once_cb_io (EV_P_ struct ev_io *w, int revents) 1845once_cb_io (EV_P_ ev_io *w, int revents)
1656{ 1846{
1657 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 1847 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1658} 1848}
1659 1849
1660static void 1850static void
1661once_cb_to (EV_P_ struct ev_timer *w, int revents) 1851once_cb_to (EV_P_ ev_timer *w, int revents)
1662{ 1852{
1663 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 1853 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1664} 1854}
1665 1855
1666void 1856void

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