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Comparing libev/ev.c (file contents):
Revision 1.10 by root, Wed Oct 31 07:36:03 2007 UTC vs.
Revision 1.19 by root, Wed Oct 31 17:55:55 2007 UTC

1/*
2 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met:
8 *
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials provided
15 * with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
1#include <math.h> 30#include <math.h>
2#include <stdlib.h> 31#include <stdlib.h>
3#include <unistd.h> 32#include <unistd.h>
4#include <fcntl.h> 33#include <fcntl.h>
5#include <signal.h> 34#include <signal.h>
35#include <stddef.h>
6 36
7#include <stdio.h> 37#include <stdio.h>
8 38
9#include <assert.h> 39#include <assert.h>
10#include <errno.h> 40#include <errno.h>
… …
32#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 62#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
33#define MAX_BLOCKTIME 60. 63#define MAX_BLOCKTIME 60.
34 64
35#include "ev.h" 65#include "ev.h"
36 66
37struct ev_watcher {
38 EV_WATCHER (ev_watcher);
39};
40
41struct ev_watcher_list {
42 EV_WATCHER_LIST (ev_watcher_list);
43};
44
45typedef struct ev_watcher *W; 67typedef struct ev_watcher *W;
46typedef struct ev_watcher_list *WL; 68typedef struct ev_watcher_list *WL;
69typedef struct ev_watcher_time *WT;
47 70
48static ev_tstamp now, diff; /* monotonic clock */ 71static ev_tstamp now, diff; /* monotonic clock */
49ev_tstamp ev_now; 72ev_tstamp ev_now;
50int ev_method; 73int ev_method;
51 74
… …
88 111
89#define array_needsize(base,cur,cnt,init) \ 112#define array_needsize(base,cur,cnt,init) \
90 if ((cnt) > cur) \ 113 if ((cnt) > cur) \
91 { \ 114 { \
92 int newcnt = cur ? cur << 1 : 16; \ 115 int newcnt = cur ? cur << 1 : 16; \
93 fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\
94 base = realloc (base, sizeof (*base) * (newcnt)); \ 116 base = realloc (base, sizeof (*base) * (newcnt)); \
95 init (base + cur, newcnt - cur); \ 117 init (base + cur, newcnt - cur); \
96 cur = newcnt; \ 118 cur = newcnt; \
97 } 119 }
98 120
… …
131static int pendingmax, pendingcnt; 153static int pendingmax, pendingcnt;
132 154
133static void 155static void
134event (W w, int events) 156event (W w, int events)
135{ 157{
158 if (w->active)
159 {
136 w->pending = ++pendingcnt; 160 w->pending = ++pendingcnt;
137 array_needsize (pendings, pendingmax, pendingcnt, ); 161 array_needsize (pendings, pendingmax, pendingcnt, );
138 pendings [pendingcnt - 1].w = w; 162 pendings [pendingcnt - 1].w = w;
139 pendings [pendingcnt - 1].events = events; 163 pendings [pendingcnt - 1].events = events;
164 }
140} 165}
141 166
142static void 167static void
143fd_event (int fd, int events) 168fd_event (int fd, int events)
144{ 169{
… …
161 186
162 for (i = 0; i < eventcnt; ++i) 187 for (i = 0; i < eventcnt; ++i)
163 event (events [i], type); 188 event (events [i], type);
164} 189}
165 190
166/*****************************************************************************/ 191/* called on EBADF to verify fds */
192static void
193fd_recheck ()
194{
195 int fd;
167 196
197 for (fd = 0; fd < anfdmax; ++fd)
198 if (anfds [fd].wev)
199 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
200 while (anfds [fd].head)
201 evio_stop (anfds [fd].head);
202}
203
204/*****************************************************************************/
205
168static struct ev_timer **atimers; 206static struct ev_timer **timers;
169static int atimermax, atimercnt; 207static int timermax, timercnt;
170 208
171static struct ev_timer **rtimers; 209static struct ev_periodic **periodics;
172static int rtimermax, rtimercnt; 210static int periodicmax, periodiccnt;
173 211
174static void 212static void
175upheap (struct ev_timer **timers, int k) 213upheap (WT *timers, int k)
176{ 214{
177 struct ev_timer *w = timers [k]; 215 WT w = timers [k];
178 216
179 while (k && timers [k >> 1]->at > w->at) 217 while (k && timers [k >> 1]->at > w->at)
180 { 218 {
181 timers [k] = timers [k >> 1]; 219 timers [k] = timers [k >> 1];
182 timers [k]->active = k + 1; 220 timers [k]->active = k + 1;
… …
187 timers [k]->active = k + 1; 225 timers [k]->active = k + 1;
188 226
189} 227}
190 228
191static void 229static void
192downheap (struct ev_timer **timers, int N, int k) 230downheap (WT *timers, int N, int k)
193{ 231{
194 struct ev_timer *w = timers [k]; 232 WT w = timers [k];
195 233
196 while (k < (N >> 1)) 234 while (k < (N >> 1))
197 { 235 {
198 int j = k << 1; 236 int j = k << 1;
199 237
… …
325 if (ev_method == EVMETHOD_NONE) select_init (flags); 363 if (ev_method == EVMETHOD_NONE) select_init (flags);
326#endif 364#endif
327 365
328 if (ev_method) 366 if (ev_method)
329 { 367 {
330 evw_init (&sigev, sigcb, 0); 368 evw_init (&sigev, sigcb);
331 siginit (); 369 siginit ();
332 } 370 }
333 371
334 return ev_method; 372 return ev_method;
335} 373}
336 374
337/*****************************************************************************/ 375/*****************************************************************************/
338 376
339void ev_prefork (void) 377void ev_prefork (void)
340{ 378{
379 /* nop */
341} 380}
342 381
343void ev_postfork_parent (void) 382void ev_postfork_parent (void)
344{ 383{
384 /* nop */
345} 385}
346 386
347void ev_postfork_child (void) 387void ev_postfork_child (void)
348{ 388{
349#if HAVE_EPOLL 389#if HAVE_EPOLL
… …
387} 427}
388 428
389static void 429static void
390call_pending () 430call_pending ()
391{ 431{
392 int i; 432 while (pendingcnt)
393
394 for (i = 0; i < pendingcnt; ++i)
395 { 433 {
396 ANPENDING *p = pendings + i; 434 ANPENDING *p = pendings + --pendingcnt;
397 435
398 if (p->w) 436 if (p->w)
399 { 437 {
400 p->w->pending = 0; 438 p->w->pending = 0;
401 p->w->cb (p->w, p->events); 439 p->w->cb (p->w, p->events);
402 } 440 }
403 } 441 }
404
405 pendingcnt = 0;
406} 442}
407 443
408static void 444static void
409timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now) 445timers_reify ()
410{ 446{
411 while (timercnt && timers [0]->at <= now) 447 while (timercnt && timers [0]->at <= now)
412 { 448 {
413 struct ev_timer *w = timers [0]; 449 struct ev_timer *w = timers [0];
450
451 event ((W)w, EV_TIMEOUT);
414 452
415 /* first reschedule or stop timer */ 453 /* first reschedule or stop timer */
416 if (w->repeat) 454 if (w->repeat)
417 { 455 {
418 if (w->is_abs)
419 w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat;
420 else
421 w->at = now + w->repeat; 456 w->at = now + w->repeat;
422 457 assert (("timer timeout in the past, negative repeat?", w->at > now));
423 assert (w->at > now);
424
425 downheap (timers, timercnt, 0); 458 downheap ((WT *)timers, timercnt, 0);
426 } 459 }
427 else 460 else
428 {
429 evtimer_stop (w); /* nonrepeating: stop timer */ 461 evtimer_stop (w); /* nonrepeating: stop timer */
430 --timercnt; /* maybe pass by reference instead? */ 462 }
463}
464
465static void
466periodics_reify ()
467{
468 while (periodiccnt && periodics [0]->at <= ev_now)
469 {
470 struct ev_periodic *w = periodics [0];
471
472 /* first reschedule or stop timer */
473 if (w->interval)
431 } 474 {
475 w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
476 assert (("periodic timeout in the past, negative interval?", w->at > ev_now));
477 downheap ((WT *)periodics, periodiccnt, 0);
478 }
479 else
480 evperiodic_stop (w); /* nonrepeating: stop timer */
432 481
433 event ((W)w, EV_TIMEOUT); 482 event ((W)w, EV_TIMEOUT);
434 } 483 }
435} 484}
436 485
437static void 486static void
487periodics_reschedule (ev_tstamp diff)
488{
489 int i;
490
491 /* adjust periodics after time jump */
492 for (i = 0; i < periodiccnt; ++i)
493 {
494 struct ev_periodic *w = periodics [i];
495
496 if (w->interval)
497 {
498 ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
499
500 if (fabs (diff) >= 1e-4)
501 {
502 evperiodic_stop (w);
503 evperiodic_start (w);
504
505 i = 0; /* restart loop, inefficient, but time jumps should be rare */
506 }
507 }
508 }
509}
510
511static void
438time_update () 512time_update ()
439{ 513{
440 int i; 514 int i;
515
441 ev_now = ev_time (); 516 ev_now = ev_time ();
442 517
443 if (have_monotonic) 518 if (have_monotonic)
444 { 519 {
445 ev_tstamp odiff = diff; 520 ev_tstamp odiff = diff;
446 521
447 /* detecting time jumps is much more difficult */
448 for (i = 2; --i; ) /* loop a few times, before making important decisions */ 522 for (i = 4; --i; ) /* loop a few times, before making important decisions */
449 { 523 {
450 now = get_clock (); 524 now = get_clock ();
451 diff = ev_now - now; 525 diff = ev_now - now;
452 526
453 if (fabs (odiff - diff) < MIN_TIMEJUMP) 527 if (fabs (odiff - diff) < MIN_TIMEJUMP)
454 return; /* all is well */ 528 return; /* all is well */
455 529
456 ev_now = ev_time (); 530 ev_now = ev_time ();
457 } 531 }
458 532
459 /* time jump detected, reschedule atimers */ 533 periodics_reschedule (diff - odiff);
460 for (i = 0; i < atimercnt; ++i) 534 /* no timer adjustment, as the monotonic clock doesn't jump */
461 {
462 struct ev_timer *w = atimers [i];
463 w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;
464 }
465 } 535 }
466 else 536 else
467 { 537 {
468 if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) 538 if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)
469 /* time jump detected, adjust rtimers */ 539 {
540 periodics_reschedule (ev_now - now);
541
542 /* adjust timers. this is easy, as the offset is the same for all */
470 for (i = 0; i < rtimercnt; ++i) 543 for (i = 0; i < timercnt; ++i)
471 rtimers [i]->at += ev_now - now; 544 timers [i]->at += diff;
545 }
472 546
473 now = ev_now; 547 now = ev_now;
474 } 548 }
475} 549}
476 550
477int ev_loop_done; 551int ev_loop_done;
478 552
479void ev_loop (int flags) 553void ev_loop (int flags)
480{ 554{
481 double block; 555 double block;
482 ev_loop_done = flags & EVLOOP_ONESHOT; 556 ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0;
483 557
484 if (checkcnt) 558 if (checkcnt)
485 { 559 {
486 queue_events ((W *)checks, checkcnt, EV_CHECK); 560 queue_events ((W *)checks, checkcnt, EV_CHECK);
487 call_pending (); 561 call_pending ();
… …
491 { 565 {
492 /* update fd-related kernel structures */ 566 /* update fd-related kernel structures */
493 fd_reify (); 567 fd_reify ();
494 568
495 /* calculate blocking time */ 569 /* calculate blocking time */
570
571 /* we only need this for !monotonic clock, but as we always have timers, we just calculate it every time */
572 ev_now = ev_time ();
573
496 if (flags & EVLOOP_NONBLOCK || idlecnt) 574 if (flags & EVLOOP_NONBLOCK || idlecnt)
497 block = 0.; 575 block = 0.;
498 else 576 else
499 { 577 {
500 block = MAX_BLOCKTIME; 578 block = MAX_BLOCKTIME;
501 579
502 if (rtimercnt) 580 if (timercnt)
503 { 581 {
504 ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge; 582 ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;
505 if (block > to) block = to; 583 if (block > to) block = to;
506 } 584 }
507 585
508 if (atimercnt) 586 if (periodiccnt)
509 { 587 {
510 ev_tstamp to = atimers [0]->at - ev_time () + method_fudge; 588 ev_tstamp to = periodics [0]->at - ev_now + method_fudge;
511 if (block > to) block = to; 589 if (block > to) block = to;
512 } 590 }
513 591
514 if (block < 0.) block = 0.; 592 if (block < 0.) block = 0.;
515 } 593 }
… …
518 596
519 /* update ev_now, do magic */ 597 /* update ev_now, do magic */
520 time_update (); 598 time_update ();
521 599
522 /* queue pending timers and reschedule them */ 600 /* queue pending timers and reschedule them */
523 /* absolute timers first */ 601 periodics_reify (); /* absolute timers first */
524 timers_reify (atimers, atimercnt, ev_now);
525 /* relative timers second */ 602 timers_reify (); /* relative timers second */
526 timers_reify (rtimers, rtimercnt, now);
527 603
528 /* queue idle watchers unless io or timers are pending */ 604 /* queue idle watchers unless io or timers are pending */
529 if (!pendingcnt) 605 if (!pendingcnt)
530 queue_events ((W *)idles, idlecnt, EV_IDLE); 606 queue_events ((W *)idles, idlecnt, EV_IDLE);
531 607
… …
533 queue_events ((W *)checks, checkcnt, EV_CHECK); 609 queue_events ((W *)checks, checkcnt, EV_CHECK);
534 610
535 call_pending (); 611 call_pending ();
536 } 612 }
537 while (!ev_loop_done); 613 while (!ev_loop_done);
614
615 if (ev_loop_done != 2)
616 ev_loop_done = 0;
538} 617}
539 618
540/*****************************************************************************/ 619/*****************************************************************************/
541 620
542static void 621static void
… …
560 head = &(*head)->next; 639 head = &(*head)->next;
561 } 640 }
562} 641}
563 642
564static void 643static void
644ev_clear (W w)
645{
646 if (w->pending)
647 {
648 pendings [w->pending - 1].w = 0;
649 w->pending = 0;
650 }
651}
652
653static void
565ev_start (W w, int active) 654ev_start (W w, int active)
566{ 655{
567 w->pending = 0;
568 w->active = active; 656 w->active = active;
569} 657}
570 658
571static void 659static void
572ev_stop (W w) 660ev_stop (W w)
573{ 661{
574 if (w->pending)
575 pendings [w->pending - 1].w = 0;
576
577 w->active = 0; 662 w->active = 0;
578 /* nop */
579} 663}
580 664
581/*****************************************************************************/ 665/*****************************************************************************/
582 666
583void 667void
… …
598} 682}
599 683
600void 684void
601evio_stop (struct ev_io *w) 685evio_stop (struct ev_io *w)
602{ 686{
687 ev_clear ((W)w);
603 if (!ev_is_active (w)) 688 if (!ev_is_active (w))
604 return; 689 return;
605 690
606 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 691 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
607 ev_stop ((W)w); 692 ev_stop ((W)w);
… …
615evtimer_start (struct ev_timer *w) 700evtimer_start (struct ev_timer *w)
616{ 701{
617 if (ev_is_active (w)) 702 if (ev_is_active (w))
618 return; 703 return;
619 704
620 if (w->is_abs) 705 w->at += now;
621 {
622 /* this formula differs from the one in timer_reify becuse we do not round up */
623 if (w->repeat)
624 w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;
625 706
707 assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));
708
626 ev_start ((W)w, ++atimercnt); 709 ev_start ((W)w, ++timercnt);
627 array_needsize (atimers, atimermax, atimercnt, ); 710 array_needsize (timers, timermax, timercnt, );
628 atimers [atimercnt - 1] = w; 711 timers [timercnt - 1] = w;
629 upheap (atimers, atimercnt - 1); 712 upheap ((WT *)timers, timercnt - 1);
630 }
631 else
632 {
633 w->at += now;
634
635 ev_start ((W)w, ++rtimercnt);
636 array_needsize (rtimers, rtimermax, rtimercnt, );
637 rtimers [rtimercnt - 1] = w;
638 upheap (rtimers, rtimercnt - 1);
639 }
640
641} 713}
642 714
643void 715void
644evtimer_stop (struct ev_timer *w) 716evtimer_stop (struct ev_timer *w)
645{ 717{
718 ev_clear ((W)w);
646 if (!ev_is_active (w)) 719 if (!ev_is_active (w))
647 return; 720 return;
648 721
649 if (w->is_abs)
650 {
651 if (w->active < atimercnt--) 722 if (w->active < timercnt--)
652 { 723 {
653 atimers [w->active - 1] = atimers [atimercnt]; 724 timers [w->active - 1] = timers [timercnt];
725 downheap ((WT *)timers, timercnt, w->active - 1);
726 }
727
728 w->at = w->repeat;
729
730 ev_stop ((W)w);
731}
732
733void
734evtimer_again (struct ev_timer *w)
735{
736 if (ev_is_active (w))
737 {
738 if (w->repeat)
739 {
740 w->at = now + w->repeat;
654 downheap (atimers, atimercnt, w->active - 1); 741 downheap ((WT *)timers, timercnt, w->active - 1);
655 }
656 }
657 else
658 {
659 if (w->active < rtimercnt--)
660 { 742 }
661 rtimers [w->active - 1] = rtimers [rtimercnt]; 743 else
662 downheap (rtimers, rtimercnt, w->active - 1); 744 evtimer_stop (w);
663 } 745 }
746 else if (w->repeat)
747 evtimer_start (w);
748}
749
750void
751evperiodic_start (struct ev_periodic *w)
752{
753 if (ev_is_active (w))
754 return;
755
756 assert (("periodic interval value less than zero not allowed", w->interval >= 0.));
757
758 /* this formula differs from the one in periodic_reify because we do not always round up */
759 if (w->interval)
760 w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
761
762 ev_start ((W)w, ++periodiccnt);
763 array_needsize (periodics, periodicmax, periodiccnt, );
764 periodics [periodiccnt - 1] = w;
765 upheap ((WT *)periodics, periodiccnt - 1);
766}
767
768void
769evperiodic_stop (struct ev_periodic *w)
770{
771 ev_clear ((W)w);
772 if (!ev_is_active (w))
773 return;
774
775 if (w->active < periodiccnt--)
776 {
777 periodics [w->active - 1] = periodics [periodiccnt];
778 downheap ((WT *)periodics, periodiccnt, w->active - 1);
664 } 779 }
665 780
666 ev_stop ((W)w); 781 ev_stop ((W)w);
667} 782}
668 783
… …
687} 802}
688 803
689void 804void
690evsignal_stop (struct ev_signal *w) 805evsignal_stop (struct ev_signal *w)
691{ 806{
807 ev_clear ((W)w);
692 if (!ev_is_active (w)) 808 if (!ev_is_active (w))
693 return; 809 return;
694 810
695 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 811 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
696 ev_stop ((W)w); 812 ev_stop ((W)w);
… …
709 idles [idlecnt - 1] = w; 825 idles [idlecnt - 1] = w;
710} 826}
711 827
712void evidle_stop (struct ev_idle *w) 828void evidle_stop (struct ev_idle *w)
713{ 829{
830 ev_clear ((W)w);
831 if (ev_is_active (w))
832 return;
833
714 idles [w->active - 1] = idles [--idlecnt]; 834 idles [w->active - 1] = idles [--idlecnt];
715 ev_stop ((W)w); 835 ev_stop ((W)w);
716} 836}
717 837
718void evcheck_start (struct ev_check *w) 838void evcheck_start (struct ev_check *w)
… …
725 checks [checkcnt - 1] = w; 845 checks [checkcnt - 1] = w;
726} 846}
727 847
728void evcheck_stop (struct ev_check *w) 848void evcheck_stop (struct ev_check *w)
729{ 849{
850 ev_clear ((W)w);
851 if (ev_is_active (w))
852 return;
853
730 checks [w->active - 1] = checks [--checkcnt]; 854 checks [w->active - 1] = checks [--checkcnt];
731 ev_stop ((W)w); 855 ev_stop ((W)w);
732} 856}
733 857
734/*****************************************************************************/ 858/*****************************************************************************/
735 859
860struct ev_once
861{
862 struct ev_io io;
863 struct ev_timer to;
864 void (*cb)(int revents, void *arg);
865 void *arg;
866};
867
868static void
869once_cb (struct ev_once *once, int revents)
870{
871 void (*cb)(int revents, void *arg) = once->cb;
872 void *arg = once->arg;
873
874 evio_stop (&once->io);
875 evtimer_stop (&once->to);
876 free (once);
877
878 cb (revents, arg);
879}
880
881static void
882once_cb_io (struct ev_io *w, int revents)
883{
884 once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
885}
886
887static void
888once_cb_to (struct ev_timer *w, int revents)
889{
890 once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
891}
892
893void
894ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
895{
896 struct ev_once *once = malloc (sizeof (struct ev_once));
897
898 if (!once)
899 cb (EV_ERROR, arg);
900 else
901 {
902 once->cb = cb;
903 once->arg = arg;
904
905 evw_init (&once->io, once_cb_io);
906
907 if (fd >= 0)
908 {
909 evio_set (&once->io, fd, events);
910 evio_start (&once->io);
911 }
912
913 evw_init (&once->to, once_cb_to);
914
915 if (timeout >= 0.)
916 {
917 evtimer_set (&once->to, timeout, 0.);
918 evtimer_start (&once->to);
919 }
920 }
921}
922
923/*****************************************************************************/
924
736#if 0 925#if 0
926
927struct ev_io wio;
737 928
738static void 929static void
739sin_cb (struct ev_io *w, int revents) 930sin_cb (struct ev_io *w, int revents)
740{ 931{
741 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); 932 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
… …
751 942
752static void 943static void
753scb (struct ev_signal *w, int revents) 944scb (struct ev_signal *w, int revents)
754{ 945{
755 fprintf (stderr, "signal %x,%d\n", revents, w->signum); 946 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
947 evio_stop (&wio);
948 evio_start (&wio);
756} 949}
757 950
758static void 951static void
759gcb (struct ev_signal *w, int revents) 952gcb (struct ev_signal *w, int revents)
760{ 953{
761 fprintf (stderr, "generic %x\n", revents); 954 fprintf (stderr, "generic %x\n", revents);
955
762} 956}
763 957
764int main (void) 958int main (void)
765{ 959{
766 struct ev_io sin;
767
768 ev_init (0); 960 ev_init (0);
769 961
770 evw_init (&sin, sin_cb, 55);
771 evio_set (&sin, 0, EV_READ); 962 evio_init (&wio, sin_cb, 0, EV_READ);
772 evio_start (&sin); 963 evio_start (&wio);
773 964
774 struct ev_timer t[10000]; 965 struct ev_timer t[10000];
775 966
776#if 0 967#if 0
777 int i; 968 int i;
778 for (i = 0; i < 10000; ++i) 969 for (i = 0; i < 10000; ++i)
779 { 970 {
780 struct ev_timer *w = t + i; 971 struct ev_timer *w = t + i;
781 evw_init (w, ocb, i); 972 evw_init (w, ocb, i);
782 evtimer_set_abs (w, drand48 (), 0.99775533); 973 evtimer_init_abs (w, ocb, drand48 (), 0.99775533);
783 evtimer_start (w); 974 evtimer_start (w);
784 if (drand48 () < 0.5) 975 if (drand48 () < 0.5)
785 evtimer_stop (w); 976 evtimer_stop (w);
786 } 977 }
787#endif 978#endif
788 979
789 struct ev_timer t1; 980 struct ev_timer t1;
790 evw_init (&t1, ocb, 0); 981 evtimer_init (&t1, ocb, 5, 10);
791 evtimer_set_abs (&t1, 5, 10);
792 evtimer_start (&t1); 982 evtimer_start (&t1);
793 983
794 struct ev_signal sig; 984 struct ev_signal sig;
795 evw_init (&sig, scb, 65535);
796 evsignal_set (&sig, SIGQUIT); 985 evsignal_init (&sig, scb, SIGQUIT);
797 evsignal_start (&sig); 986 evsignal_start (&sig);
798 987
799 struct ev_check cw; 988 struct ev_check cw;
800 evw_init (&cw, gcb, 0); 989 evcheck_init (&cw, gcb);
801 evcheck_start (&cw); 990 evcheck_start (&cw);
802 991
803 struct ev_idle iw; 992 struct ev_idle iw;
804 evw_init (&iw, gcb, 0); 993 evidle_init (&iw, gcb);
805 evidle_start (&iw); 994 evidle_start (&iw);
806 995
807 ev_loop (0); 996 ev_loop (0);
808 997
809 return 0; 998 return 0;

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