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Comparing libev/ev.c (file contents):
Revision 1.128 by root, Thu Nov 22 12:28:27 2007 UTC vs.
Revision 1.143 by root, Tue Nov 27 07:27:10 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 720void inline_speed
712# define WCONTINUED 0
713#endif
714
715static void
716child_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)
717{ 722{
718 struct ev_child *w; 723 ev_child *w;
719 724
720 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)
721 if (w->pid == pid || !w->pid) 726 if (w->pid == pid || !w->pid)
722 { 727 {
723 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 728 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
724 w->rpid = pid; 729 w->rpid = pid;
725 w->rstatus = status; 730 w->rstatus = status;
726 ev_feed_event (EV_A_ (W)w, EV_CHILD); 731 ev_feed_event (EV_A_ (W)w, EV_CHILD);
727 } 732 }
728} 733}
729 734
735#ifndef WCONTINUED
736# define WCONTINUED 0
737#endif
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
744 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
735 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 745 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
736 { 746 if (!WCONTINUED
747 || errno != EINVAL
748 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
749 return;
750
737 /* 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 */
752 /* 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); 753 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
739 754
740 child_reap (EV_A_ sw, pid, pid, status); 755 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 */ 756 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
742 }
743} 757}
744 758
745#endif 759#endif
746 760
747/*****************************************************************************/ 761/*****************************************************************************/
… …
773{ 787{
774 return EV_VERSION_MINOR; 788 return EV_VERSION_MINOR;
775} 789}
776 790
777/* 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 */
778static int 792int inline_size
779enable_secure (void) 793enable_secure (void)
780{ 794{
781#ifdef _WIN32 795#ifdef _WIN32
782 return 0; 796 return 0;
783#else 797#else
… …
785 || getgid () != getegid (); 799 || getgid () != getegid ();
786#endif 800#endif
787} 801}
788 802
789unsigned int 803unsigned int
790ev_method (EV_P) 804ev_supported_backends (void)
791{ 805{
792 return method; 806 unsigned int flags = 0;
807
808 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
809 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
810 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
811 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
812 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
813
814 return flags;
815}
816
817unsigned int
818ev_recommended_backends (void)
819{
820 unsigned int flags = ev_supported_backends ();
821
822#ifndef __NetBSD__
823 /* kqueue is borked on everything but netbsd apparently */
824 /* it usually doesn't work correctly on anything but sockets and pipes */
825 flags &= ~EVBACKEND_KQUEUE;
826#endif
827#ifdef __APPLE__
828 // flags &= ~EVBACKEND_KQUEUE; for documentation
829 flags &= ~EVBACKEND_POLL;
830#endif
831
832 return flags;
833}
834
835unsigned int
836ev_embeddable_backends (void)
837{
838 return EVBACKEND_EPOLL
839 | EVBACKEND_KQUEUE
840 | EVBACKEND_PORT;
841}
842
843unsigned int
844ev_backend (EV_P)
845{
846 return backend;
793} 847}
794 848
795static void 849static void
796loop_init (EV_P_ unsigned int flags) 850loop_init (EV_P_ unsigned int flags)
797{ 851{
798 if (!method) 852 if (!backend)
799 { 853 {
800#if EV_USE_MONOTONIC 854#if EV_USE_MONOTONIC
801 { 855 {
802 struct timespec ts; 856 struct timespec ts;
803 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 857 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
813 if (!(flags & EVFLAG_NOENV) 867 if (!(flags & EVFLAG_NOENV)
814 && !enable_secure () 868 && !enable_secure ()
815 && getenv ("LIBEV_FLAGS")) 869 && getenv ("LIBEV_FLAGS"))
816 flags = atoi (getenv ("LIBEV_FLAGS")); 870 flags = atoi (getenv ("LIBEV_FLAGS"));
817 871
818 if (!(flags & EVMETHOD_ALL)) 872 if (!(flags & 0x0000ffffUL))
819 { 873 flags |= ev_recommended_backends ();
820 flags |= EVMETHOD_ALL;
821#if EV_USE_KQUEUE && !defined (__NetBSD__)
822 /* kqueue is borked on everything but netbsd apparently */
823 /* it usually doesn't work correctly on anything but sockets and pipes */
824 flags &= ~EVMETHOD_KQUEUE;
825#endif
826 }
827 874
828 method = 0; 875 backend = 0;
829#if EV_USE_PORT 876#if EV_USE_PORT
830 if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); 877 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
831#endif 878#endif
832#if EV_USE_KQUEUE 879#if EV_USE_KQUEUE
833 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 880 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
834#endif 881#endif
835#if EV_USE_EPOLL 882#if EV_USE_EPOLL
836 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 883 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
837#endif 884#endif
838#if EV_USE_POLL 885#if EV_USE_POLL
839 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 886 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
840#endif 887#endif
841#if EV_USE_SELECT 888#if EV_USE_SELECT
842 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 889 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
843#endif 890#endif
844 891
845 ev_init (&sigev, sigcb); 892 ev_init (&sigev, sigcb);
846 ev_set_priority (&sigev, EV_MAXPRI); 893 ev_set_priority (&sigev, EV_MAXPRI);
847 } 894 }
… …
851loop_destroy (EV_P) 898loop_destroy (EV_P)
852{ 899{
853 int i; 900 int i;
854 901
855#if EV_USE_PORT 902#if EV_USE_PORT
856 if (method == EVMETHOD_PORT ) port_destroy (EV_A); 903 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
857#endif 904#endif
858#if EV_USE_KQUEUE 905#if EV_USE_KQUEUE
859 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 906 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
860#endif 907#endif
861#if EV_USE_EPOLL 908#if EV_USE_EPOLL
862 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 909 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
863#endif 910#endif
864#if EV_USE_POLL 911#if EV_USE_POLL
865 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 912 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
866#endif 913#endif
867#if EV_USE_SELECT 914#if EV_USE_SELECT
868 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 915 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
869#endif 916#endif
870 917
871 for (i = NUMPRI; i--; ) 918 for (i = NUMPRI; i--; )
872 array_free (pending, [i]); 919 array_free (pending, [i]);
873 920
874 /* have to use the microsoft-never-gets-it-right macro */ 921 /* have to use the microsoft-never-gets-it-right macro */
875 array_free (fdchange, EMPTY0); 922 array_free (fdchange, EMPTY0);
876 array_free (timer, EMPTY0); 923 array_free (timer, EMPTY0);
877#if EV_PERIODICS 924#if EV_PERIODIC_ENABLE
878 array_free (periodic, EMPTY0); 925 array_free (periodic, EMPTY0);
879#endif 926#endif
880 array_free (idle, EMPTY0); 927 array_free (idle, EMPTY0);
881 array_free (prepare, EMPTY0); 928 array_free (prepare, EMPTY0);
882 array_free (check, EMPTY0); 929 array_free (check, EMPTY0);
883 930
884 method = 0; 931 backend = 0;
885} 932}
886 933
887static void 934static void
888loop_fork (EV_P) 935loop_fork (EV_P)
889{ 936{
890#if EV_USE_PORT 937#if EV_USE_PORT
891 if (method == EVMETHOD_PORT ) port_fork (EV_A); 938 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
892#endif 939#endif
893#if EV_USE_KQUEUE 940#if EV_USE_KQUEUE
894 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 941 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
895#endif 942#endif
896#if EV_USE_EPOLL 943#if EV_USE_EPOLL
897 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 944 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
898#endif 945#endif
899 946
900 if (ev_is_active (&sigev)) 947 if (ev_is_active (&sigev))
901 { 948 {
902 /* default loop */ 949 /* default loop */
… …
923 970
924 memset (loop, 0, sizeof (struct ev_loop)); 971 memset (loop, 0, sizeof (struct ev_loop));
925 972
926 loop_init (EV_A_ flags); 973 loop_init (EV_A_ flags);
927 974
928 if (ev_method (EV_A)) 975 if (ev_backend (EV_A))
929 return loop; 976 return loop;
930 977
931 return 0; 978 return 0;
932} 979}
933 980
… …
966 ev_default_loop_ptr = 1; 1013 ev_default_loop_ptr = 1;
967#endif 1014#endif
968 1015
969 loop_init (EV_A_ flags); 1016 loop_init (EV_A_ flags);
970 1017
971 if (ev_method (EV_A)) 1018 if (ev_backend (EV_A))
972 { 1019 {
973 siginit (EV_A); 1020 siginit (EV_A);
974 1021
975#ifndef _WIN32 1022#ifndef _WIN32
976 ev_signal_init (&childev, childcb, SIGCHLD); 1023 ev_signal_init (&childev, childcb, SIGCHLD);
… …
1012{ 1059{
1013#if EV_MULTIPLICITY 1060#if EV_MULTIPLICITY
1014 struct ev_loop *loop = ev_default_loop_ptr; 1061 struct ev_loop *loop = ev_default_loop_ptr;
1015#endif 1062#endif
1016 1063
1017 if (method) 1064 if (backend)
1018 postfork = 1; 1065 postfork = 1;
1019} 1066}
1020 1067
1021/*****************************************************************************/ 1068/*****************************************************************************/
1022 1069
1023static int 1070int inline_size
1024any_pending (EV_P) 1071any_pending (EV_P)
1025{ 1072{
1026 int pri; 1073 int pri;
1027 1074
1028 for (pri = NUMPRI; pri--; ) 1075 for (pri = NUMPRI; pri--; )
… …
1030 return 1; 1077 return 1;
1031 1078
1032 return 0; 1079 return 0;
1033} 1080}
1034 1081
1035inline void 1082void inline_speed
1036call_pending (EV_P) 1083call_pending (EV_P)
1037{ 1084{
1038 int pri; 1085 int pri;
1039 1086
1040 for (pri = NUMPRI; pri--; ) 1087 for (pri = NUMPRI; pri--; )
… …
1042 { 1089 {
1043 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1090 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1044 1091
1045 if (expect_true (p->w)) 1092 if (expect_true (p->w))
1046 { 1093 {
1094 assert (("non-pending watcher on pending list", p->w->pending));
1095
1047 p->w->pending = 0; 1096 p->w->pending = 0;
1048 EV_CB_INVOKE (p->w, p->events); 1097 EV_CB_INVOKE (p->w, p->events);
1049 } 1098 }
1050 } 1099 }
1051} 1100}
1052 1101
1053inline void 1102void inline_size
1054timers_reify (EV_P) 1103timers_reify (EV_P)
1055{ 1104{
1056 while (timercnt && ((WT)timers [0])->at <= mn_now) 1105 while (timercnt && ((WT)timers [0])->at <= mn_now)
1057 { 1106 {
1058 struct ev_timer *w = timers [0]; 1107 ev_timer *w = timers [0];
1059 1108
1060 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1109 assert (("inactive timer on timer heap detected", ev_is_active (w)));
1061 1110
1062 /* first reschedule or stop timer */ 1111 /* first reschedule or stop timer */
1063 if (w->repeat) 1112 if (w->repeat)
… …
1075 1124
1076 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1125 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1077 } 1126 }
1078} 1127}
1079 1128
1080#if EV_PERIODICS 1129#if EV_PERIODIC_ENABLE
1081inline void 1130void inline_size
1082periodics_reify (EV_P) 1131periodics_reify (EV_P)
1083{ 1132{
1084 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1133 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1085 { 1134 {
1086 struct ev_periodic *w = periodics [0]; 1135 ev_periodic *w = periodics [0];
1087 1136
1088 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1137 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1089 1138
1090 /* first reschedule or stop timer */ 1139 /* first reschedule or stop timer */
1091 if (w->reschedule_cb) 1140 if (w->reschedule_cb)
… …
1105 1154
1106 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1155 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1107 } 1156 }
1108} 1157}
1109 1158
1110static void 1159static void noinline
1111periodics_reschedule (EV_P) 1160periodics_reschedule (EV_P)
1112{ 1161{
1113 int i; 1162 int i;
1114 1163
1115 /* adjust periodics after time jump */ 1164 /* adjust periodics after time jump */
1116 for (i = 0; i < periodiccnt; ++i) 1165 for (i = 0; i < periodiccnt; ++i)
1117 { 1166 {
1118 struct ev_periodic *w = periodics [i]; 1167 ev_periodic *w = periodics [i];
1119 1168
1120 if (w->reschedule_cb) 1169 if (w->reschedule_cb)
1121 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1170 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1122 else if (w->interval) 1171 else if (w->interval)
1123 ((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;
… …
1127 for (i = periodiccnt >> 1; i--; ) 1176 for (i = periodiccnt >> 1; i--; )
1128 downheap ((WT *)periodics, periodiccnt, i); 1177 downheap ((WT *)periodics, periodiccnt, i);
1129} 1178}
1130#endif 1179#endif
1131 1180
1132inline int 1181int inline_size
1133time_update_monotonic (EV_P) 1182time_update_monotonic (EV_P)
1134{ 1183{
1135 mn_now = get_clock (); 1184 mn_now = get_clock ();
1136 1185
1137 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1186 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
… …
1145 ev_rt_now = ev_time (); 1194 ev_rt_now = ev_time ();
1146 return 1; 1195 return 1;
1147 } 1196 }
1148} 1197}
1149 1198
1150inline void 1199void inline_size
1151time_update (EV_P) 1200time_update (EV_P)
1152{ 1201{
1153 int i; 1202 int i;
1154 1203
1155#if EV_USE_MONOTONIC 1204#if EV_USE_MONOTONIC
… …
1157 { 1206 {
1158 if (time_update_monotonic (EV_A)) 1207 if (time_update_monotonic (EV_A))
1159 { 1208 {
1160 ev_tstamp odiff = rtmn_diff; 1209 ev_tstamp odiff = rtmn_diff;
1161 1210
1162 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; )
1163 { 1220 {
1164 rtmn_diff = ev_rt_now - mn_now; 1221 rtmn_diff = ev_rt_now - mn_now;
1165 1222
1166 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1223 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1167 return; /* all is well */ 1224 return; /* all is well */
… …
1169 ev_rt_now = ev_time (); 1226 ev_rt_now = ev_time ();
1170 mn_now = get_clock (); 1227 mn_now = get_clock ();
1171 now_floor = mn_now; 1228 now_floor = mn_now;
1172 } 1229 }
1173 1230
1174# if EV_PERIODICS 1231# if EV_PERIODIC_ENABLE
1175 periodics_reschedule (EV_A); 1232 periodics_reschedule (EV_A);
1176# endif 1233# endif
1177 /* no timer adjustment, as the monotonic clock doesn't jump */ 1234 /* no timer adjustment, as the monotonic clock doesn't jump */
1178 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1235 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1179 } 1236 }
… …
1183 { 1240 {
1184 ev_rt_now = ev_time (); 1241 ev_rt_now = ev_time ();
1185 1242
1186 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))
1187 { 1244 {
1188#if EV_PERIODICS 1245#if EV_PERIODIC_ENABLE
1189 periodics_reschedule (EV_A); 1246 periodics_reschedule (EV_A);
1190#endif 1247#endif
1191 1248
1192 /* 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 */
1193 for (i = 0; i < timercnt; ++i) 1250 for (i = 0; i < timercnt; ++i)
… …
1213static int loop_done; 1270static int loop_done;
1214 1271
1215void 1272void
1216ev_loop (EV_P_ int flags) 1273ev_loop (EV_P_ int flags)
1217{ 1274{
1218 double block;
1219 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1275 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1276 ? EVUNLOOP_ONE
1277 : EVUNLOOP_CANCEL;
1220 1278
1221 while (activecnt) 1279 while (activecnt)
1222 { 1280 {
1223 /* queue check watchers (and execute them) */ 1281 /* queue check watchers (and execute them) */
1224 if (expect_false (preparecnt)) 1282 if (expect_false (preparecnt))
… …
1233 1291
1234 /* update fd-related kernel structures */ 1292 /* update fd-related kernel structures */
1235 fd_reify (EV_A); 1293 fd_reify (EV_A);
1236 1294
1237 /* calculate blocking time */ 1295 /* calculate blocking time */
1296 {
1297 double block;
1238 1298
1239 /* we only need this for !monotonic clock or timers, but as we basically 1299 if (flags & EVLOOP_NONBLOCK || idlecnt)
1240 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 */
1241#if EV_USE_MONOTONIC 1304#if EV_USE_MONOTONIC
1242 if (expect_true (have_monotonic)) 1305 if (expect_true (have_monotonic))
1243 time_update_monotonic (EV_A); 1306 time_update_monotonic (EV_A);
1244 else 1307 else
1245#endif 1308#endif
1246 { 1309 {
1247 ev_rt_now = ev_time (); 1310 ev_rt_now = ev_time ();
1248 mn_now = ev_rt_now; 1311 mn_now = ev_rt_now;
1249 } 1312 }
1250 1313
1251 if (flags & EVLOOP_NONBLOCK || idlecnt)
1252 block = 0.;
1253 else
1254 {
1255 block = MAX_BLOCKTIME; 1314 block = MAX_BLOCKTIME;
1256 1315
1257 if (timercnt) 1316 if (timercnt)
1258 { 1317 {
1259 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1318 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1260 if (block > to) block = to; 1319 if (block > to) block = to;
1261 } 1320 }
1262 1321
1263#if EV_PERIODICS 1322#if EV_PERIODIC_ENABLE
1264 if (periodiccnt) 1323 if (periodiccnt)
1265 { 1324 {
1266 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1325 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1267 if (block > to) block = to; 1326 if (block > to) block = to;
1268 } 1327 }
1269#endif 1328#endif
1270 1329
1271 if (expect_false (block < 0.)) block = 0.; 1330 if (expect_false (block < 0.)) block = 0.;
1272 } 1331 }
1273 1332
1274 method_poll (EV_A_ block); 1333 backend_poll (EV_A_ block);
1334 }
1275 1335
1276 /* update ev_rt_now, do magic */ 1336 /* update ev_rt_now, do magic */
1277 time_update (EV_A); 1337 time_update (EV_A);
1278 1338
1279 /* queue pending timers and reschedule them */ 1339 /* queue pending timers and reschedule them */
1280 timers_reify (EV_A); /* relative timers called last */ 1340 timers_reify (EV_A); /* relative timers called last */
1281#if EV_PERIODICS 1341#if EV_PERIODIC_ENABLE
1282 periodics_reify (EV_A); /* absolute timers called first */ 1342 periodics_reify (EV_A); /* absolute timers called first */
1283#endif 1343#endif
1284 1344
1285 /* queue idle watchers unless io or timers are pending */ 1345 /* queue idle watchers unless other events are pending */
1286 if (idlecnt && !any_pending (EV_A)) 1346 if (idlecnt && !any_pending (EV_A))
1287 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1347 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1288 1348
1289 /* queue check watchers, to be executed first */ 1349 /* queue check watchers, to be executed first */
1290 if (expect_false (checkcnt)) 1350 if (expect_false (checkcnt))
… …
1294 1354
1295 if (expect_false (loop_done)) 1355 if (expect_false (loop_done))
1296 break; 1356 break;
1297 } 1357 }
1298 1358
1299 if (loop_done != 2) 1359 if (loop_done == EVUNLOOP_ONE)
1300 loop_done = 0; 1360 loop_done = EVUNLOOP_CANCEL;
1301} 1361}
1302 1362
1303void 1363void
1304ev_unloop (EV_P_ int how) 1364ev_unloop (EV_P_ int how)
1305{ 1365{
1306 loop_done = how; 1366 loop_done = how;
1307} 1367}
1308 1368
1309/*****************************************************************************/ 1369/*****************************************************************************/
1310 1370
1311inline void 1371void inline_size
1312wlist_add (WL *head, WL elem) 1372wlist_add (WL *head, WL elem)
1313{ 1373{
1314 elem->next = *head; 1374 elem->next = *head;
1315 *head = elem; 1375 *head = elem;
1316} 1376}
1317 1377
1318inline void 1378void inline_size
1319wlist_del (WL *head, WL elem) 1379wlist_del (WL *head, WL elem)
1320{ 1380{
1321 while (*head) 1381 while (*head)
1322 { 1382 {
1323 if (*head == elem) 1383 if (*head == elem)
… …
1328 1388
1329 head = &(*head)->next; 1389 head = &(*head)->next;
1330 } 1390 }
1331} 1391}
1332 1392
1333inline void 1393void inline_speed
1334ev_clear_pending (EV_P_ W w) 1394ev_clear_pending (EV_P_ W w)
1335{ 1395{
1336 if (w->pending) 1396 if (w->pending)
1337 { 1397 {
1338 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1398 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1339 w->pending = 0; 1399 w->pending = 0;
1340 } 1400 }
1341} 1401}
1342 1402
1343inline void 1403void inline_speed
1344ev_start (EV_P_ W w, int active) 1404ev_start (EV_P_ W w, int active)
1345{ 1405{
1346 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1406 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1347 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1407 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1348 1408
1349 w->active = active; 1409 w->active = active;
1350 ev_ref (EV_A); 1410 ev_ref (EV_A);
1351} 1411}
1352 1412
1353inline void 1413void inline_size
1354ev_stop (EV_P_ W w) 1414ev_stop (EV_P_ W w)
1355{ 1415{
1356 ev_unref (EV_A); 1416 ev_unref (EV_A);
1357 w->active = 0; 1417 w->active = 0;
1358} 1418}
1359 1419
1360/*****************************************************************************/ 1420/*****************************************************************************/
1361 1421
1362void 1422void
1363ev_io_start (EV_P_ struct ev_io *w) 1423ev_io_start (EV_P_ ev_io *w)
1364{ 1424{
1365 int fd = w->fd; 1425 int fd = w->fd;
1366 1426
1367 if (expect_false (ev_is_active (w))) 1427 if (expect_false (ev_is_active (w)))
1368 return; 1428 return;
… …
1375 1435
1376 fd_change (EV_A_ fd); 1436 fd_change (EV_A_ fd);
1377} 1437}
1378 1438
1379void 1439void
1380ev_io_stop (EV_P_ struct ev_io *w) 1440ev_io_stop (EV_P_ ev_io *w)
1381{ 1441{
1382 ev_clear_pending (EV_A_ (W)w); 1442 ev_clear_pending (EV_A_ (W)w);
1383 if (expect_false (!ev_is_active (w))) 1443 if (expect_false (!ev_is_active (w)))
1384 return; 1444 return;
1385 1445
… …
1390 1450
1391 fd_change (EV_A_ w->fd); 1451 fd_change (EV_A_ w->fd);
1392} 1452}
1393 1453
1394void 1454void
1395ev_timer_start (EV_P_ struct ev_timer *w) 1455ev_timer_start (EV_P_ ev_timer *w)
1396{ 1456{
1397 if (expect_false (ev_is_active (w))) 1457 if (expect_false (ev_is_active (w)))
1398 return; 1458 return;
1399 1459
1400 ((WT)w)->at += mn_now; 1460 ((WT)w)->at += mn_now;
1401 1461
1402 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.));
1403 1463
1404 ev_start (EV_A_ (W)w, ++timercnt); 1464 ev_start (EV_A_ (W)w, ++timercnt);
1405 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1465 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1406 timers [timercnt - 1] = w; 1466 timers [timercnt - 1] = w;
1407 upheap ((WT *)timers, timercnt - 1); 1467 upheap ((WT *)timers, timercnt - 1);
1408 1468
1409 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1469 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1410} 1470}
1411 1471
1412void 1472void
1413ev_timer_stop (EV_P_ struct ev_timer *w) 1473ev_timer_stop (EV_P_ ev_timer *w)
1414{ 1474{
1415 ev_clear_pending (EV_A_ (W)w); 1475 ev_clear_pending (EV_A_ (W)w);
1416 if (expect_false (!ev_is_active (w))) 1476 if (expect_false (!ev_is_active (w)))
1417 return; 1477 return;
1418 1478
… …
1428 1488
1429 ev_stop (EV_A_ (W)w); 1489 ev_stop (EV_A_ (W)w);
1430} 1490}
1431 1491
1432void 1492void
1433ev_timer_again (EV_P_ struct ev_timer *w) 1493ev_timer_again (EV_P_ ev_timer *w)
1434{ 1494{
1435 if (ev_is_active (w)) 1495 if (ev_is_active (w))
1436 { 1496 {
1437 if (w->repeat) 1497 if (w->repeat)
1438 { 1498 {
… …
1447 w->at = w->repeat; 1507 w->at = w->repeat;
1448 ev_timer_start (EV_A_ w); 1508 ev_timer_start (EV_A_ w);
1449 } 1509 }
1450} 1510}
1451 1511
1452#if EV_PERIODICS 1512#if EV_PERIODIC_ENABLE
1453void 1513void
1454ev_periodic_start (EV_P_ struct ev_periodic *w) 1514ev_periodic_start (EV_P_ ev_periodic *w)
1455{ 1515{
1456 if (expect_false (ev_is_active (w))) 1516 if (expect_false (ev_is_active (w)))
1457 return; 1517 return;
1458 1518
1459 if (w->reschedule_cb) 1519 if (w->reschedule_cb)
… …
1464 /* 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 */
1465 ((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;
1466 } 1526 }
1467 1527
1468 ev_start (EV_A_ (W)w, ++periodiccnt); 1528 ev_start (EV_A_ (W)w, ++periodiccnt);
1469 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1529 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1470 periodics [periodiccnt - 1] = w; 1530 periodics [periodiccnt - 1] = w;
1471 upheap ((WT *)periodics, periodiccnt - 1); 1531 upheap ((WT *)periodics, periodiccnt - 1);
1472 1532
1473 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1533 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1474} 1534}
1475 1535
1476void 1536void
1477ev_periodic_stop (EV_P_ struct ev_periodic *w) 1537ev_periodic_stop (EV_P_ ev_periodic *w)
1478{ 1538{
1479 ev_clear_pending (EV_A_ (W)w); 1539 ev_clear_pending (EV_A_ (W)w);
1480 if (expect_false (!ev_is_active (w))) 1540 if (expect_false (!ev_is_active (w)))
1481 return; 1541 return;
1482 1542
… …
1490 1550
1491 ev_stop (EV_A_ (W)w); 1551 ev_stop (EV_A_ (W)w);
1492} 1552}
1493 1553
1494void 1554void
1495ev_periodic_again (EV_P_ struct ev_periodic *w) 1555ev_periodic_again (EV_P_ ev_periodic *w)
1496{ 1556{
1497 /* TODO: use adjustheap and recalculation */ 1557 /* TODO: use adjustheap and recalculation */
1498 ev_periodic_stop (EV_A_ w); 1558 ev_periodic_stop (EV_A_ w);
1499 ev_periodic_start (EV_A_ w); 1559 ev_periodic_start (EV_A_ w);
1500} 1560}
1501#endif 1561#endif
1502 1562
1503void 1563void
1504ev_idle_start (EV_P_ struct ev_idle *w) 1564ev_idle_start (EV_P_ ev_idle *w)
1505{ 1565{
1506 if (expect_false (ev_is_active (w))) 1566 if (expect_false (ev_is_active (w)))
1507 return; 1567 return;
1508 1568
1509 ev_start (EV_A_ (W)w, ++idlecnt); 1569 ev_start (EV_A_ (W)w, ++idlecnt);
1510 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); 1570 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1511 idles [idlecnt - 1] = w; 1571 idles [idlecnt - 1] = w;
1512} 1572}
1513 1573
1514void 1574void
1515ev_idle_stop (EV_P_ struct ev_idle *w) 1575ev_idle_stop (EV_P_ ev_idle *w)
1516{ 1576{
1517 ev_clear_pending (EV_A_ (W)w); 1577 ev_clear_pending (EV_A_ (W)w);
1518 if (expect_false (!ev_is_active (w))) 1578 if (expect_false (!ev_is_active (w)))
1519 return; 1579 return;
1520 1580
1581 {
1582 int active = ((W)w)->active;
1521 idles [((W)w)->active - 1] = idles [--idlecnt]; 1583 idles [active - 1] = idles [--idlecnt];
1584 ((W)idles [active - 1])->active = active;
1585 }
1586
1522 ev_stop (EV_A_ (W)w); 1587 ev_stop (EV_A_ (W)w);
1523} 1588}
1524 1589
1525void 1590void
1526ev_prepare_start (EV_P_ struct ev_prepare *w) 1591ev_prepare_start (EV_P_ ev_prepare *w)
1527{ 1592{
1528 if (expect_false (ev_is_active (w))) 1593 if (expect_false (ev_is_active (w)))
1529 return; 1594 return;
1530 1595
1531 ev_start (EV_A_ (W)w, ++preparecnt); 1596 ev_start (EV_A_ (W)w, ++preparecnt);
1532 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 1597 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1533 prepares [preparecnt - 1] = w; 1598 prepares [preparecnt - 1] = w;
1534} 1599}
1535 1600
1536void 1601void
1537ev_prepare_stop (EV_P_ struct ev_prepare *w) 1602ev_prepare_stop (EV_P_ ev_prepare *w)
1538{ 1603{
1539 ev_clear_pending (EV_A_ (W)w); 1604 ev_clear_pending (EV_A_ (W)w);
1540 if (expect_false (!ev_is_active (w))) 1605 if (expect_false (!ev_is_active (w)))
1541 return; 1606 return;
1542 1607
1608 {
1609 int active = ((W)w)->active;
1543 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1610 prepares [active - 1] = prepares [--preparecnt];
1611 ((W)prepares [active - 1])->active = active;
1612 }
1613
1544 ev_stop (EV_A_ (W)w); 1614 ev_stop (EV_A_ (W)w);
1545} 1615}
1546 1616
1547void 1617void
1548ev_check_start (EV_P_ struct ev_check *w) 1618ev_check_start (EV_P_ ev_check *w)
1549{ 1619{
1550 if (expect_false (ev_is_active (w))) 1620 if (expect_false (ev_is_active (w)))
1551 return; 1621 return;
1552 1622
1553 ev_start (EV_A_ (W)w, ++checkcnt); 1623 ev_start (EV_A_ (W)w, ++checkcnt);
1554 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); 1624 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1555 checks [checkcnt - 1] = w; 1625 checks [checkcnt - 1] = w;
1556} 1626}
1557 1627
1558void 1628void
1559ev_check_stop (EV_P_ struct ev_check *w) 1629ev_check_stop (EV_P_ ev_check *w)
1560{ 1630{
1561 ev_clear_pending (EV_A_ (W)w); 1631 ev_clear_pending (EV_A_ (W)w);
1562 if (expect_false (!ev_is_active (w))) 1632 if (expect_false (!ev_is_active (w)))
1563 return; 1633 return;
1564 1634
1635 {
1636 int active = ((W)w)->active;
1565 checks [((W)w)->active - 1] = checks [--checkcnt]; 1637 checks [active - 1] = checks [--checkcnt];
1638 ((W)checks [active - 1])->active = active;
1639 }
1640
1566 ev_stop (EV_A_ (W)w); 1641 ev_stop (EV_A_ (W)w);
1567} 1642}
1568 1643
1569#ifndef SA_RESTART 1644#ifndef SA_RESTART
1570# define SA_RESTART 0 1645# define SA_RESTART 0
1571#endif 1646#endif
1572 1647
1573void 1648void
1574ev_signal_start (EV_P_ struct ev_signal *w) 1649ev_signal_start (EV_P_ ev_signal *w)
1575{ 1650{
1576#if EV_MULTIPLICITY 1651#if EV_MULTIPLICITY
1577 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));
1578#endif 1653#endif
1579 if (expect_false (ev_is_active (w))) 1654 if (expect_false (ev_is_active (w)))
… …
1598#endif 1673#endif
1599 } 1674 }
1600} 1675}
1601 1676
1602void 1677void
1603ev_signal_stop (EV_P_ struct ev_signal *w) 1678ev_signal_stop (EV_P_ ev_signal *w)
1604{ 1679{
1605 ev_clear_pending (EV_A_ (W)w); 1680 ev_clear_pending (EV_A_ (W)w);
1606 if (expect_false (!ev_is_active (w))) 1681 if (expect_false (!ev_is_active (w)))
1607 return; 1682 return;
1608 1683
… …
1612 if (!signals [w->signum - 1].head) 1687 if (!signals [w->signum - 1].head)
1613 signal (w->signum, SIG_DFL); 1688 signal (w->signum, SIG_DFL);
1614} 1689}
1615 1690
1616void 1691void
1617ev_child_start (EV_P_ struct ev_child *w) 1692ev_child_start (EV_P_ ev_child *w)
1618{ 1693{
1619#if EV_MULTIPLICITY 1694#if EV_MULTIPLICITY
1620 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));
1621#endif 1696#endif
1622 if (expect_false (ev_is_active (w))) 1697 if (expect_false (ev_is_active (w)))
… …
1625 ev_start (EV_A_ (W)w, 1); 1700 ev_start (EV_A_ (W)w, 1);
1626 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1701 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1627} 1702}
1628 1703
1629void 1704void
1630ev_child_stop (EV_P_ struct ev_child *w) 1705ev_child_stop (EV_P_ ev_child *w)
1631{ 1706{
1632 ev_clear_pending (EV_A_ (W)w); 1707 ev_clear_pending (EV_A_ (W)w);
1633 if (expect_false (!ev_is_active (w))) 1708 if (expect_false (!ev_is_active (w)))
1634 return; 1709 return;
1635 1710
1636 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1711 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1637 ev_stop (EV_A_ (W)w); 1712 ev_stop (EV_A_ (W)w);
1638} 1713}
1639 1714
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
1722static void
1723embed_cb (EV_P_ ev_io *io, int revents)
1724{
1725 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
1726
1727 if (ev_cb (w))
1728 ev_feed_event (EV_A_ (W)w, EV_EMBED);
1729 else
1730 ev_embed_sweep (loop, w);
1731}
1732
1733void
1734ev_embed_start (EV_P_ ev_embed *w)
1735{
1736 if (expect_false (ev_is_active (w)))
1737 return;
1738
1739 {
1740 struct ev_loop *loop = w->loop;
1741 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
1742 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
1743 }
1744
1745 ev_set_priority (&w->io, ev_priority (w));
1746 ev_io_start (EV_A_ &w->io);
1747
1748 ev_start (EV_A_ (W)w, 1);
1749}
1750
1751void
1752ev_embed_stop (EV_P_ ev_embed *w)
1753{
1754 ev_clear_pending (EV_A_ (W)w);
1755 if (expect_false (!ev_is_active (w)))
1756 return;
1757
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
1827 ev_stop (EV_A_ (W)w);
1828}
1829#endif
1830
1640/*****************************************************************************/ 1831/*****************************************************************************/
1641 1832
1642struct ev_once 1833struct ev_once
1643{ 1834{
1644 struct ev_io io; 1835 ev_io io;
1645 struct ev_timer to; 1836 ev_timer to;
1646 void (*cb)(int revents, void *arg); 1837 void (*cb)(int revents, void *arg);
1647 void *arg; 1838 void *arg;
1648}; 1839};
1649 1840
1650static void 1841static void
… …
1659 1850
1660 cb (revents, arg); 1851 cb (revents, arg);
1661} 1852}
1662 1853
1663static void 1854static void
1664once_cb_io (EV_P_ struct ev_io *w, int revents) 1855once_cb_io (EV_P_ ev_io *w, int revents)
1665{ 1856{
1666 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);
1667} 1858}
1668 1859
1669static void 1860static void
1670once_cb_to (EV_P_ struct ev_timer *w, int revents) 1861once_cb_to (EV_P_ ev_timer *w, int revents)
1671{ 1862{
1672 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);
1673} 1864}
1674 1865
1675void 1866void

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