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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 1.143 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))
… …
808 ev_rt_now = ev_time (); 862 ev_rt_now = ev_time ();
809 mn_now = get_clock (); 863 mn_now = get_clock ();
810 now_floor = mn_now; 864 now_floor = mn_now;
811 rtmn_diff = ev_rt_now - mn_now; 865 rtmn_diff = ev_rt_now - mn_now;
812 866
813 if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 867 if (!(flags & EVFLAG_NOENV)
868 && !enable_secure ()
869 && getenv ("LIBEV_FLAGS"))
814 flags = atoi (getenv ("LIBEV_FLAGS")); 870 flags = atoi (getenv ("LIBEV_FLAGS"));
815 871
816 if (!(flags & 0x0000ffff)) 872 if (!(flags & 0x0000ffffUL))
817 flags |= 0x0000ffff; 873 flags |= ev_recommended_backends ();
818 874
819 method = 0; 875 backend = 0;
820#if EV_USE_PORT 876#if EV_USE_PORT
821 if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); 877 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
822#endif 878#endif
823#if EV_USE_KQUEUE 879#if EV_USE_KQUEUE
824 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 880 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
825#endif 881#endif
826#if EV_USE_EPOLL 882#if EV_USE_EPOLL
827 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 883 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
828#endif 884#endif
829#if EV_USE_POLL 885#if EV_USE_POLL
830 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 886 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
831#endif 887#endif
832#if EV_USE_SELECT 888#if EV_USE_SELECT
833 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 889 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
834#endif 890#endif
835 891
836 ev_init (&sigev, sigcb); 892 ev_init (&sigev, sigcb);
837 ev_set_priority (&sigev, EV_MAXPRI); 893 ev_set_priority (&sigev, EV_MAXPRI);
838 } 894 }
… …
842loop_destroy (EV_P) 898loop_destroy (EV_P)
843{ 899{
844 int i; 900 int i;
845 901
846#if EV_USE_PORT 902#if EV_USE_PORT
847 if (method == EVMETHOD_PORT ) port_destroy (EV_A); 903 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
848#endif 904#endif
849#if EV_USE_KQUEUE 905#if EV_USE_KQUEUE
850 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 906 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
851#endif 907#endif
852#if EV_USE_EPOLL 908#if EV_USE_EPOLL
853 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 909 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
854#endif 910#endif
855#if EV_USE_POLL 911#if EV_USE_POLL
856 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 912 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
857#endif 913#endif
858#if EV_USE_SELECT 914#if EV_USE_SELECT
859 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 915 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
860#endif 916#endif
861 917
862 for (i = NUMPRI; i--; ) 918 for (i = NUMPRI; i--; )
863 array_free (pending, [i]); 919 array_free (pending, [i]);
864 920
865 /* have to use the microsoft-never-gets-it-right macro */ 921 /* have to use the microsoft-never-gets-it-right macro */
866 array_free (fdchange, EMPTY0); 922 array_free (fdchange, EMPTY0);
867 array_free (timer, EMPTY0); 923 array_free (timer, EMPTY0);
868#if EV_PERIODICS 924#if EV_PERIODIC_ENABLE
869 array_free (periodic, EMPTY0); 925 array_free (periodic, EMPTY0);
870#endif 926#endif
871 array_free (idle, EMPTY0); 927 array_free (idle, EMPTY0);
872 array_free (prepare, EMPTY0); 928 array_free (prepare, EMPTY0);
873 array_free (check, EMPTY0); 929 array_free (check, EMPTY0);
874 930
875 method = 0; 931 backend = 0;
876} 932}
877 933
878static void 934static void
879loop_fork (EV_P) 935loop_fork (EV_P)
880{ 936{
881#if EV_USE_PORT 937#if EV_USE_PORT
882 if (method == EVMETHOD_PORT ) port_fork (EV_A); 938 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
883#endif 939#endif
884#if EV_USE_KQUEUE 940#if EV_USE_KQUEUE
885 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 941 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
886#endif 942#endif
887#if EV_USE_EPOLL 943#if EV_USE_EPOLL
888 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 944 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
889#endif 945#endif
890 946
891 if (ev_is_active (&sigev)) 947 if (ev_is_active (&sigev))
892 { 948 {
893 /* default loop */ 949 /* default loop */
… …
914 970
915 memset (loop, 0, sizeof (struct ev_loop)); 971 memset (loop, 0, sizeof (struct ev_loop));
916 972
917 loop_init (EV_A_ flags); 973 loop_init (EV_A_ flags);
918 974
919 if (ev_method (EV_A)) 975 if (ev_backend (EV_A))
920 return loop; 976 return loop;
921 977
922 return 0; 978 return 0;
923} 979}
924 980
… …
957 ev_default_loop_ptr = 1; 1013 ev_default_loop_ptr = 1;
958#endif 1014#endif
959 1015
960 loop_init (EV_A_ flags); 1016 loop_init (EV_A_ flags);
961 1017
962 if (ev_method (EV_A)) 1018 if (ev_backend (EV_A))
963 { 1019 {
964 siginit (EV_A); 1020 siginit (EV_A);
965 1021
966#ifndef _WIN32 1022#ifndef _WIN32
967 ev_signal_init (&childev, childcb, SIGCHLD); 1023 ev_signal_init (&childev, childcb, SIGCHLD);
… …
1003{ 1059{
1004#if EV_MULTIPLICITY 1060#if EV_MULTIPLICITY
1005 struct ev_loop *loop = ev_default_loop_ptr; 1061 struct ev_loop *loop = ev_default_loop_ptr;
1006#endif 1062#endif
1007 1063
1008 if (method) 1064 if (backend)
1009 postfork = 1; 1065 postfork = 1;
1010} 1066}
1011 1067
1012/*****************************************************************************/ 1068/*****************************************************************************/
1013 1069
1014static int 1070int inline_size
1015any_pending (EV_P) 1071any_pending (EV_P)
1016{ 1072{
1017 int pri; 1073 int pri;
1018 1074
1019 for (pri = NUMPRI; pri--; ) 1075 for (pri = NUMPRI; pri--; )
… …
1021 return 1; 1077 return 1;
1022 1078
1023 return 0; 1079 return 0;
1024} 1080}
1025 1081
1026inline void 1082void inline_speed
1027call_pending (EV_P) 1083call_pending (EV_P)
1028{ 1084{
1029 int pri; 1085 int pri;
1030 1086
1031 for (pri = NUMPRI; pri--; ) 1087 for (pri = NUMPRI; pri--; )
… …
1033 { 1089 {
1034 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1090 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1035 1091
1036 if (expect_true (p->w)) 1092 if (expect_true (p->w))
1037 { 1093 {
1094 assert (("non-pending watcher on pending list", p->w->pending));
1095
1038 p->w->pending = 0; 1096 p->w->pending = 0;
1039 EV_CB_INVOKE (p->w, p->events); 1097 EV_CB_INVOKE (p->w, p->events);
1040 } 1098 }
1041 } 1099 }
1042} 1100}
1043 1101
1044inline void 1102void inline_size
1045timers_reify (EV_P) 1103timers_reify (EV_P)
1046{ 1104{
1047 while (timercnt && ((WT)timers [0])->at <= mn_now) 1105 while (timercnt && ((WT)timers [0])->at <= mn_now)
1048 { 1106 {
1049 struct ev_timer *w = timers [0]; 1107 ev_timer *w = timers [0];
1050 1108
1051 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1109 assert (("inactive timer on timer heap detected", ev_is_active (w)));
1052 1110
1053 /* first reschedule or stop timer */ 1111 /* first reschedule or stop timer */
1054 if (w->repeat) 1112 if (w->repeat)
… …
1066 1124
1067 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1125 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1068 } 1126 }
1069} 1127}
1070 1128
1071#if EV_PERIODICS 1129#if EV_PERIODIC_ENABLE
1072inline void 1130void inline_size
1073periodics_reify (EV_P) 1131periodics_reify (EV_P)
1074{ 1132{
1075 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1133 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1076 { 1134 {
1077 struct ev_periodic *w = periodics [0]; 1135 ev_periodic *w = periodics [0];
1078 1136
1079 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1137 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1080 1138
1081 /* first reschedule or stop timer */ 1139 /* first reschedule or stop timer */
1082 if (w->reschedule_cb) 1140 if (w->reschedule_cb)
… …
1096 1154
1097 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1155 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1098 } 1156 }
1099} 1157}
1100 1158
1101static void 1159static void noinline
1102periodics_reschedule (EV_P) 1160periodics_reschedule (EV_P)
1103{ 1161{
1104 int i; 1162 int i;
1105 1163
1106 /* adjust periodics after time jump */ 1164 /* adjust periodics after time jump */
1107 for (i = 0; i < periodiccnt; ++i) 1165 for (i = 0; i < periodiccnt; ++i)
1108 { 1166 {
1109 struct ev_periodic *w = periodics [i]; 1167 ev_periodic *w = periodics [i];
1110 1168
1111 if (w->reschedule_cb) 1169 if (w->reschedule_cb)
1112 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1170 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1113 else if (w->interval) 1171 else if (w->interval)
1114 ((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;
… …
1118 for (i = periodiccnt >> 1; i--; ) 1176 for (i = periodiccnt >> 1; i--; )
1119 downheap ((WT *)periodics, periodiccnt, i); 1177 downheap ((WT *)periodics, periodiccnt, i);
1120} 1178}
1121#endif 1179#endif
1122 1180
1123inline int 1181int inline_size
1124time_update_monotonic (EV_P) 1182time_update_monotonic (EV_P)
1125{ 1183{
1126 mn_now = get_clock (); 1184 mn_now = get_clock ();
1127 1185
1128 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1186 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
… …
1136 ev_rt_now = ev_time (); 1194 ev_rt_now = ev_time ();
1137 return 1; 1195 return 1;
1138 } 1196 }
1139} 1197}
1140 1198
1141inline void 1199void inline_size
1142time_update (EV_P) 1200time_update (EV_P)
1143{ 1201{
1144 int i; 1202 int i;
1145 1203
1146#if EV_USE_MONOTONIC 1204#if EV_USE_MONOTONIC
… …
1148 { 1206 {
1149 if (time_update_monotonic (EV_A)) 1207 if (time_update_monotonic (EV_A))
1150 { 1208 {
1151 ev_tstamp odiff = rtmn_diff; 1209 ev_tstamp odiff = rtmn_diff;
1152 1210
1153 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; )
1154 { 1220 {
1155 rtmn_diff = ev_rt_now - mn_now; 1221 rtmn_diff = ev_rt_now - mn_now;
1156 1222
1157 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1223 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1158 return; /* all is well */ 1224 return; /* all is well */
… …
1160 ev_rt_now = ev_time (); 1226 ev_rt_now = ev_time ();
1161 mn_now = get_clock (); 1227 mn_now = get_clock ();
1162 now_floor = mn_now; 1228 now_floor = mn_now;
1163 } 1229 }
1164 1230
1165# if EV_PERIODICS 1231# if EV_PERIODIC_ENABLE
1166 periodics_reschedule (EV_A); 1232 periodics_reschedule (EV_A);
1167# endif 1233# endif
1168 /* no timer adjustment, as the monotonic clock doesn't jump */ 1234 /* no timer adjustment, as the monotonic clock doesn't jump */
1169 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1235 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1170 } 1236 }
… …
1174 { 1240 {
1175 ev_rt_now = ev_time (); 1241 ev_rt_now = ev_time ();
1176 1242
1177 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))
1178 { 1244 {
1179#if EV_PERIODICS 1245#if EV_PERIODIC_ENABLE
1180 periodics_reschedule (EV_A); 1246 periodics_reschedule (EV_A);
1181#endif 1247#endif
1182 1248
1183 /* 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 */
1184 for (i = 0; i < timercnt; ++i) 1250 for (i = 0; i < timercnt; ++i)
… …
1204static int loop_done; 1270static int loop_done;
1205 1271
1206void 1272void
1207ev_loop (EV_P_ int flags) 1273ev_loop (EV_P_ int flags)
1208{ 1274{
1209 double block;
1210 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1275 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1276 ? EVUNLOOP_ONE
1277 : EVUNLOOP_CANCEL;
1211 1278
1212 while (activecnt) 1279 while (activecnt)
1213 { 1280 {
1214 /* queue check watchers (and execute them) */ 1281 /* queue check watchers (and execute them) */
1215 if (expect_false (preparecnt)) 1282 if (expect_false (preparecnt))
… …
1224 1291
1225 /* update fd-related kernel structures */ 1292 /* update fd-related kernel structures */
1226 fd_reify (EV_A); 1293 fd_reify (EV_A);
1227 1294
1228 /* calculate blocking time */ 1295 /* calculate blocking time */
1296 {
1297 double block;
1229 1298
1230 /* we only need this for !monotonic clock or timers, but as we basically 1299 if (flags & EVLOOP_NONBLOCK || idlecnt)
1231 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 */
1232#if EV_USE_MONOTONIC 1304#if EV_USE_MONOTONIC
1233 if (expect_true (have_monotonic)) 1305 if (expect_true (have_monotonic))
1234 time_update_monotonic (EV_A); 1306 time_update_monotonic (EV_A);
1235 else 1307 else
1236#endif 1308#endif
1237 { 1309 {
1238 ev_rt_now = ev_time (); 1310 ev_rt_now = ev_time ();
1239 mn_now = ev_rt_now; 1311 mn_now = ev_rt_now;
1240 } 1312 }
1241 1313
1242 if (flags & EVLOOP_NONBLOCK || idlecnt)
1243 block = 0.;
1244 else
1245 {
1246 block = MAX_BLOCKTIME; 1314 block = MAX_BLOCKTIME;
1247 1315
1248 if (timercnt) 1316 if (timercnt)
1249 { 1317 {
1250 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1318 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1251 if (block > to) block = to; 1319 if (block > to) block = to;
1252 } 1320 }
1253 1321
1254#if EV_PERIODICS 1322#if EV_PERIODIC_ENABLE
1255 if (periodiccnt) 1323 if (periodiccnt)
1256 { 1324 {
1257 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;
1258 if (block > to) block = to; 1326 if (block > to) block = to;
1259 } 1327 }
1260#endif 1328#endif
1261 1329
1262 if (expect_false (block < 0.)) block = 0.; 1330 if (expect_false (block < 0.)) block = 0.;
1263 } 1331 }
1264 1332
1265 method_poll (EV_A_ block); 1333 backend_poll (EV_A_ block);
1334 }
1266 1335
1267 /* update ev_rt_now, do magic */ 1336 /* update ev_rt_now, do magic */
1268 time_update (EV_A); 1337 time_update (EV_A);
1269 1338
1270 /* queue pending timers and reschedule them */ 1339 /* queue pending timers and reschedule them */
1271 timers_reify (EV_A); /* relative timers called last */ 1340 timers_reify (EV_A); /* relative timers called last */
1272#if EV_PERIODICS 1341#if EV_PERIODIC_ENABLE
1273 periodics_reify (EV_A); /* absolute timers called first */ 1342 periodics_reify (EV_A); /* absolute timers called first */
1274#endif 1343#endif
1275 1344
1276 /* queue idle watchers unless io or timers are pending */ 1345 /* queue idle watchers unless other events are pending */
1277 if (idlecnt && !any_pending (EV_A)) 1346 if (idlecnt && !any_pending (EV_A))
1278 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1347 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1279 1348
1280 /* queue check watchers, to be executed first */ 1349 /* queue check watchers, to be executed first */
1281 if (expect_false (checkcnt)) 1350 if (expect_false (checkcnt))
… …
1285 1354
1286 if (expect_false (loop_done)) 1355 if (expect_false (loop_done))
1287 break; 1356 break;
1288 } 1357 }
1289 1358
1290 if (loop_done != 2) 1359 if (loop_done == EVUNLOOP_ONE)
1291 loop_done = 0; 1360 loop_done = EVUNLOOP_CANCEL;
1292} 1361}
1293 1362
1294void 1363void
1295ev_unloop (EV_P_ int how) 1364ev_unloop (EV_P_ int how)
1296{ 1365{
1297 loop_done = how; 1366 loop_done = how;
1298} 1367}
1299 1368
1300/*****************************************************************************/ 1369/*****************************************************************************/
1301 1370
1302inline void 1371void inline_size
1303wlist_add (WL *head, WL elem) 1372wlist_add (WL *head, WL elem)
1304{ 1373{
1305 elem->next = *head; 1374 elem->next = *head;
1306 *head = elem; 1375 *head = elem;
1307} 1376}
1308 1377
1309inline void 1378void inline_size
1310wlist_del (WL *head, WL elem) 1379wlist_del (WL *head, WL elem)
1311{ 1380{
1312 while (*head) 1381 while (*head)
1313 { 1382 {
1314 if (*head == elem) 1383 if (*head == elem)
… …
1319 1388
1320 head = &(*head)->next; 1389 head = &(*head)->next;
1321 } 1390 }
1322} 1391}
1323 1392
1324inline void 1393void inline_speed
1325ev_clear_pending (EV_P_ W w) 1394ev_clear_pending (EV_P_ W w)
1326{ 1395{
1327 if (w->pending) 1396 if (w->pending)
1328 { 1397 {
1329 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1398 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1330 w->pending = 0; 1399 w->pending = 0;
1331 } 1400 }
1332} 1401}
1333 1402
1334inline void 1403void inline_speed
1335ev_start (EV_P_ W w, int active) 1404ev_start (EV_P_ W w, int active)
1336{ 1405{
1337 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1406 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1338 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1407 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1339 1408
1340 w->active = active; 1409 w->active = active;
1341 ev_ref (EV_A); 1410 ev_ref (EV_A);
1342} 1411}
1343 1412
1344inline void 1413void inline_size
1345ev_stop (EV_P_ W w) 1414ev_stop (EV_P_ W w)
1346{ 1415{
1347 ev_unref (EV_A); 1416 ev_unref (EV_A);
1348 w->active = 0; 1417 w->active = 0;
1349} 1418}
1350 1419
1351/*****************************************************************************/ 1420/*****************************************************************************/
1352 1421
1353void 1422void
1354ev_io_start (EV_P_ struct ev_io *w) 1423ev_io_start (EV_P_ ev_io *w)
1355{ 1424{
1356 int fd = w->fd; 1425 int fd = w->fd;
1357 1426
1358 if (expect_false (ev_is_active (w))) 1427 if (expect_false (ev_is_active (w)))
1359 return; 1428 return;
… …
1366 1435
1367 fd_change (EV_A_ fd); 1436 fd_change (EV_A_ fd);
1368} 1437}
1369 1438
1370void 1439void
1371ev_io_stop (EV_P_ struct ev_io *w) 1440ev_io_stop (EV_P_ ev_io *w)
1372{ 1441{
1373 ev_clear_pending (EV_A_ (W)w); 1442 ev_clear_pending (EV_A_ (W)w);
1374 if (expect_false (!ev_is_active (w))) 1443 if (expect_false (!ev_is_active (w)))
1375 return; 1444 return;
1376 1445
… …
1381 1450
1382 fd_change (EV_A_ w->fd); 1451 fd_change (EV_A_ w->fd);
1383} 1452}
1384 1453
1385void 1454void
1386ev_timer_start (EV_P_ struct ev_timer *w) 1455ev_timer_start (EV_P_ ev_timer *w)
1387{ 1456{
1388 if (expect_false (ev_is_active (w))) 1457 if (expect_false (ev_is_active (w)))
1389 return; 1458 return;
1390 1459
1391 ((WT)w)->at += mn_now; 1460 ((WT)w)->at += mn_now;
1392 1461
1393 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.));
1394 1463
1395 ev_start (EV_A_ (W)w, ++timercnt); 1464 ev_start (EV_A_ (W)w, ++timercnt);
1396 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1465 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1397 timers [timercnt - 1] = w; 1466 timers [timercnt - 1] = w;
1398 upheap ((WT *)timers, timercnt - 1); 1467 upheap ((WT *)timers, timercnt - 1);
1399 1468
1400 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1469 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1401} 1470}
1402 1471
1403void 1472void
1404ev_timer_stop (EV_P_ struct ev_timer *w) 1473ev_timer_stop (EV_P_ ev_timer *w)
1405{ 1474{
1406 ev_clear_pending (EV_A_ (W)w); 1475 ev_clear_pending (EV_A_ (W)w);
1407 if (expect_false (!ev_is_active (w))) 1476 if (expect_false (!ev_is_active (w)))
1408 return; 1477 return;
1409 1478
… …
1419 1488
1420 ev_stop (EV_A_ (W)w); 1489 ev_stop (EV_A_ (W)w);
1421} 1490}
1422 1491
1423void 1492void
1424ev_timer_again (EV_P_ struct ev_timer *w) 1493ev_timer_again (EV_P_ ev_timer *w)
1425{ 1494{
1426 if (ev_is_active (w)) 1495 if (ev_is_active (w))
1427 { 1496 {
1428 if (w->repeat) 1497 if (w->repeat)
1429 { 1498 {
… …
1438 w->at = w->repeat; 1507 w->at = w->repeat;
1439 ev_timer_start (EV_A_ w); 1508 ev_timer_start (EV_A_ w);
1440 } 1509 }
1441} 1510}
1442 1511
1443#if EV_PERIODICS 1512#if EV_PERIODIC_ENABLE
1444void 1513void
1445ev_periodic_start (EV_P_ struct ev_periodic *w) 1514ev_periodic_start (EV_P_ ev_periodic *w)
1446{ 1515{
1447 if (expect_false (ev_is_active (w))) 1516 if (expect_false (ev_is_active (w)))
1448 return; 1517 return;
1449 1518
1450 if (w->reschedule_cb) 1519 if (w->reschedule_cb)
… …
1455 /* 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 */
1456 ((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;
1457 } 1526 }
1458 1527
1459 ev_start (EV_A_ (W)w, ++periodiccnt); 1528 ev_start (EV_A_ (W)w, ++periodiccnt);
1460 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1529 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1461 periodics [periodiccnt - 1] = w; 1530 periodics [periodiccnt - 1] = w;
1462 upheap ((WT *)periodics, periodiccnt - 1); 1531 upheap ((WT *)periodics, periodiccnt - 1);
1463 1532
1464 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1533 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1465} 1534}
1466 1535
1467void 1536void
1468ev_periodic_stop (EV_P_ struct ev_periodic *w) 1537ev_periodic_stop (EV_P_ ev_periodic *w)
1469{ 1538{
1470 ev_clear_pending (EV_A_ (W)w); 1539 ev_clear_pending (EV_A_ (W)w);
1471 if (expect_false (!ev_is_active (w))) 1540 if (expect_false (!ev_is_active (w)))
1472 return; 1541 return;
1473 1542
… …
1481 1550
1482 ev_stop (EV_A_ (W)w); 1551 ev_stop (EV_A_ (W)w);
1483} 1552}
1484 1553
1485void 1554void
1486ev_periodic_again (EV_P_ struct ev_periodic *w) 1555ev_periodic_again (EV_P_ ev_periodic *w)
1487{ 1556{
1488 /* TODO: use adjustheap and recalculation */ 1557 /* TODO: use adjustheap and recalculation */
1489 ev_periodic_stop (EV_A_ w); 1558 ev_periodic_stop (EV_A_ w);
1490 ev_periodic_start (EV_A_ w); 1559 ev_periodic_start (EV_A_ w);
1491} 1560}
1492#endif 1561#endif
1493 1562
1494void 1563void
1495ev_idle_start (EV_P_ struct ev_idle *w) 1564ev_idle_start (EV_P_ ev_idle *w)
1496{ 1565{
1497 if (expect_false (ev_is_active (w))) 1566 if (expect_false (ev_is_active (w)))
1498 return; 1567 return;
1499 1568
1500 ev_start (EV_A_ (W)w, ++idlecnt); 1569 ev_start (EV_A_ (W)w, ++idlecnt);
1501 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); 1570 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1502 idles [idlecnt - 1] = w; 1571 idles [idlecnt - 1] = w;
1503} 1572}
1504 1573
1505void 1574void
1506ev_idle_stop (EV_P_ struct ev_idle *w) 1575ev_idle_stop (EV_P_ ev_idle *w)
1507{ 1576{
1508 ev_clear_pending (EV_A_ (W)w); 1577 ev_clear_pending (EV_A_ (W)w);
1509 if (expect_false (!ev_is_active (w))) 1578 if (expect_false (!ev_is_active (w)))
1510 return; 1579 return;
1511 1580
1581 {
1582 int active = ((W)w)->active;
1512 idles [((W)w)->active - 1] = idles [--idlecnt]; 1583 idles [active - 1] = idles [--idlecnt];
1584 ((W)idles [active - 1])->active = active;
1585 }
1586
1513 ev_stop (EV_A_ (W)w); 1587 ev_stop (EV_A_ (W)w);
1514} 1588}
1515 1589
1516void 1590void
1517ev_prepare_start (EV_P_ struct ev_prepare *w) 1591ev_prepare_start (EV_P_ ev_prepare *w)
1518{ 1592{
1519 if (expect_false (ev_is_active (w))) 1593 if (expect_false (ev_is_active (w)))
1520 return; 1594 return;
1521 1595
1522 ev_start (EV_A_ (W)w, ++preparecnt); 1596 ev_start (EV_A_ (W)w, ++preparecnt);
1523 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 1597 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1524 prepares [preparecnt - 1] = w; 1598 prepares [preparecnt - 1] = w;
1525} 1599}
1526 1600
1527void 1601void
1528ev_prepare_stop (EV_P_ struct ev_prepare *w) 1602ev_prepare_stop (EV_P_ ev_prepare *w)
1529{ 1603{
1530 ev_clear_pending (EV_A_ (W)w); 1604 ev_clear_pending (EV_A_ (W)w);
1531 if (expect_false (!ev_is_active (w))) 1605 if (expect_false (!ev_is_active (w)))
1532 return; 1606 return;
1533 1607
1608 {
1609 int active = ((W)w)->active;
1534 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1610 prepares [active - 1] = prepares [--preparecnt];
1611 ((W)prepares [active - 1])->active = active;
1612 }
1613
1535 ev_stop (EV_A_ (W)w); 1614 ev_stop (EV_A_ (W)w);
1536} 1615}
1537 1616
1538void 1617void
1539ev_check_start (EV_P_ struct ev_check *w) 1618ev_check_start (EV_P_ ev_check *w)
1540{ 1619{
1541 if (expect_false (ev_is_active (w))) 1620 if (expect_false (ev_is_active (w)))
1542 return; 1621 return;
1543 1622
1544 ev_start (EV_A_ (W)w, ++checkcnt); 1623 ev_start (EV_A_ (W)w, ++checkcnt);
1545 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); 1624 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1546 checks [checkcnt - 1] = w; 1625 checks [checkcnt - 1] = w;
1547} 1626}
1548 1627
1549void 1628void
1550ev_check_stop (EV_P_ struct ev_check *w) 1629ev_check_stop (EV_P_ ev_check *w)
1551{ 1630{
1552 ev_clear_pending (EV_A_ (W)w); 1631 ev_clear_pending (EV_A_ (W)w);
1553 if (expect_false (!ev_is_active (w))) 1632 if (expect_false (!ev_is_active (w)))
1554 return; 1633 return;
1555 1634
1635 {
1636 int active = ((W)w)->active;
1556 checks [((W)w)->active - 1] = checks [--checkcnt]; 1637 checks [active - 1] = checks [--checkcnt];
1638 ((W)checks [active - 1])->active = active;
1639 }
1640
1557 ev_stop (EV_A_ (W)w); 1641 ev_stop (EV_A_ (W)w);
1558} 1642}
1559 1643
1560#ifndef SA_RESTART 1644#ifndef SA_RESTART
1561# define SA_RESTART 0 1645# define SA_RESTART 0
1562#endif 1646#endif
1563 1647
1564void 1648void
1565ev_signal_start (EV_P_ struct ev_signal *w) 1649ev_signal_start (EV_P_ ev_signal *w)
1566{ 1650{
1567#if EV_MULTIPLICITY 1651#if EV_MULTIPLICITY
1568 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));
1569#endif 1653#endif
1570 if (expect_false (ev_is_active (w))) 1654 if (expect_false (ev_is_active (w)))
… …
1589#endif 1673#endif
1590 } 1674 }
1591} 1675}
1592 1676
1593void 1677void
1594ev_signal_stop (EV_P_ struct ev_signal *w) 1678ev_signal_stop (EV_P_ ev_signal *w)
1595{ 1679{
1596 ev_clear_pending (EV_A_ (W)w); 1680 ev_clear_pending (EV_A_ (W)w);
1597 if (expect_false (!ev_is_active (w))) 1681 if (expect_false (!ev_is_active (w)))
1598 return; 1682 return;
1599 1683
… …
1603 if (!signals [w->signum - 1].head) 1687 if (!signals [w->signum - 1].head)
1604 signal (w->signum, SIG_DFL); 1688 signal (w->signum, SIG_DFL);
1605} 1689}
1606 1690
1607void 1691void
1608ev_child_start (EV_P_ struct ev_child *w) 1692ev_child_start (EV_P_ ev_child *w)
1609{ 1693{
1610#if EV_MULTIPLICITY 1694#if EV_MULTIPLICITY
1611 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));
1612#endif 1696#endif
1613 if (expect_false (ev_is_active (w))) 1697 if (expect_false (ev_is_active (w)))
… …
1616 ev_start (EV_A_ (W)w, 1); 1700 ev_start (EV_A_ (W)w, 1);
1617 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1701 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1618} 1702}
1619 1703
1620void 1704void
1621ev_child_stop (EV_P_ struct ev_child *w) 1705ev_child_stop (EV_P_ ev_child *w)
1622{ 1706{
1623 ev_clear_pending (EV_A_ (W)w); 1707 ev_clear_pending (EV_A_ (W)w);
1624 if (expect_false (!ev_is_active (w))) 1708 if (expect_false (!ev_is_active (w)))
1625 return; 1709 return;
1626 1710
1627 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1711 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1628 ev_stop (EV_A_ (W)w); 1712 ev_stop (EV_A_ (W)w);
1629} 1713}
1630 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
1631/*****************************************************************************/ 1831/*****************************************************************************/
1632 1832
1633struct ev_once 1833struct ev_once
1634{ 1834{
1635 struct ev_io io; 1835 ev_io io;
1636 struct ev_timer to; 1836 ev_timer to;
1637 void (*cb)(int revents, void *arg); 1837 void (*cb)(int revents, void *arg);
1638 void *arg; 1838 void *arg;
1639}; 1839};
1640 1840
1641static void 1841static void
… …
1650 1850
1651 cb (revents, arg); 1851 cb (revents, arg);
1652} 1852}
1653 1853
1654static void 1854static void
1655once_cb_io (EV_P_ struct ev_io *w, int revents) 1855once_cb_io (EV_P_ ev_io *w, int revents)
1656{ 1856{
1657 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);
1658} 1858}
1659 1859
1660static void 1860static void
1661once_cb_to (EV_P_ struct ev_timer *w, int revents) 1861once_cb_to (EV_P_ ev_timer *w, int revents)
1662{ 1862{
1663 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);
1664} 1864}
1665 1865
1666void 1866void

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