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Comparing libev/ev.c (file contents):
Revision 1.23 by root, Wed Oct 31 20:10:17 2007 UTC vs.
Revision 1.36 by root, Thu Nov 1 13:11:11 2007 UTC

1/* 1/*
2 * libev event processing core, watcher management
3 *
2 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
3 * All rights reserved. 5 * All rights reserved.
4 * 6 *
5 * Redistribution and use in source and binary forms, with or without 7 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are 8 * modification, are permitted provided that the following conditions are
… …
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * (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. 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */ 30 */
31#if EV_USE_CONFIG_H
32# include "config.h"
33#endif
29 34
30#include <math.h> 35#include <math.h>
31#include <stdlib.h> 36#include <stdlib.h>
32#include <unistd.h> 37#include <unistd.h>
33#include <fcntl.h> 38#include <fcntl.h>
… …
41#include <sys/types.h> 46#include <sys/types.h>
42#include <sys/wait.h> 47#include <sys/wait.h>
43#include <sys/time.h> 48#include <sys/time.h>
44#include <time.h> 49#include <time.h>
45 50
46#ifndef HAVE_MONOTONIC 51#ifndef EV_USE_MONOTONIC
47# ifdef CLOCK_MONOTONIC 52# ifdef CLOCK_MONOTONIC
48# define HAVE_MONOTONIC 1 53# define EV_USE_MONOTONIC 1
49# endif 54# endif
50#endif 55#endif
51 56
52#ifndef HAVE_SELECT 57#ifndef EV_USE_SELECT
53# define HAVE_SELECT 1 58# define EV_USE_SELECT 1
54#endif 59#endif
55 60
56#ifndef HAVE_EPOLL 61#ifndef EV_USE_EPOLL
57# define HAVE_EPOLL 0 62# define EV_USE_EPOLL 0
58#endif 63#endif
59 64
65#ifndef CLOCK_REALTIME
66# define EV_USE_REALTIME 0
67#endif
60#ifndef HAVE_REALTIME 68#ifndef EV_USE_REALTIME
61# define HAVE_REALTIME 1 /* posix requirement, but might be slower */ 69# define EV_USE_REALTIME 1 /* posix requirement, but might be slower */
62#endif 70#endif
63 71
64#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 72#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
65#define MAX_BLOCKTIME 60. 73#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */
66#define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */ 74#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
75#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
67 76
68#include "ev.h" 77#include "ev.h"
69 78
70typedef struct ev_watcher *W; 79typedef struct ev_watcher *W;
71typedef struct ev_watcher_list *WL; 80typedef struct ev_watcher_list *WL;
… …
84/*****************************************************************************/ 93/*****************************************************************************/
85 94
86ev_tstamp 95ev_tstamp
87ev_time (void) 96ev_time (void)
88{ 97{
89#if HAVE_REALTIME 98#if EV_USE_REALTIME
90 struct timespec ts; 99 struct timespec ts;
91 clock_gettime (CLOCK_REALTIME, &ts); 100 clock_gettime (CLOCK_REALTIME, &ts);
92 return ts.tv_sec + ts.tv_nsec * 1e-9; 101 return ts.tv_sec + ts.tv_nsec * 1e-9;
93#else 102#else
94 struct timeval tv; 103 struct timeval tv;
… …
98} 107}
99 108
100static ev_tstamp 109static ev_tstamp
101get_clock (void) 110get_clock (void)
102{ 111{
103#if HAVE_MONOTONIC 112#if EV_USE_MONOTONIC
104 if (have_monotonic) 113 if (have_monotonic)
105 { 114 {
106 struct timespec ts; 115 struct timespec ts;
107 clock_gettime (CLOCK_MONOTONIC, &ts); 116 clock_gettime (CLOCK_MONOTONIC, &ts);
108 return ts.tv_sec + ts.tv_nsec * 1e-9; 117 return ts.tv_sec + ts.tv_nsec * 1e-9;
109 } 118 }
110#endif 119#endif
111 120
112 return ev_time (); 121 return ev_time ();
113} 122}
123
124#define array_roundsize(base,n) ((n) | 4 & ~3)
114 125
115#define array_needsize(base,cur,cnt,init) \ 126#define array_needsize(base,cur,cnt,init) \
116 if ((cnt) > cur) \ 127 if ((cnt) > cur) \
117 { \ 128 { \
118 int newcnt = cur; \ 129 int newcnt = cur; \
119 do \ 130 do \
120 { \ 131 { \
121 newcnt = (newcnt << 1) | 4 & ~3; \ 132 newcnt = array_roundsize (base, newcnt << 1); \
122 } \ 133 } \
123 while ((cnt) > newcnt); \ 134 while ((cnt) > newcnt); \
124 \ 135 \
125 base = realloc (base, sizeof (*base) * (newcnt)); \ 136 base = realloc (base, sizeof (*base) * (newcnt)); \
126 init (base + cur, newcnt - cur); \ 137 init (base + cur, newcnt - cur); \
… …
130/*****************************************************************************/ 141/*****************************************************************************/
131 142
132typedef struct 143typedef struct
133{ 144{
134 struct ev_io *head; 145 struct ev_io *head;
135 unsigned char wev, rev; /* want, received event set */ 146 unsigned char events;
147 unsigned char reify;
136} ANFD; 148} ANFD;
137 149
138static ANFD *anfds; 150static ANFD *anfds;
139static int anfdmax; 151static int anfdmax;
140 152
141static int *fdchanges;
142static int fdchangemax, fdchangecnt;
143
144static void 153static void
145anfds_init (ANFD *base, int count) 154anfds_init (ANFD *base, int count)
146{ 155{
147 while (count--) 156 while (count--)
148 { 157 {
149 base->head = 0; 158 base->head = 0;
150 base->wev = base->rev = EV_NONE; 159 base->events = EV_NONE;
160 base->reify = 0;
161
151 ++base; 162 ++base;
152 } 163 }
153} 164}
154 165
155typedef struct 166typedef struct
… …
162static int pendingmax, pendingcnt; 173static int pendingmax, pendingcnt;
163 174
164static void 175static void
165event (W w, int events) 176event (W w, int events)
166{ 177{
167 if (w->active) 178 if (w->pending)
179 {
180 pendings [w->pending - 1].events |= events;
181 return;
168 { 182 }
183
169 w->pending = ++pendingcnt; 184 w->pending = ++pendingcnt;
170 array_needsize (pendings, pendingmax, pendingcnt, ); 185 array_needsize (pendings, pendingmax, pendingcnt, );
171 pendings [pendingcnt - 1].w = w; 186 pendings [pendingcnt - 1].w = w;
172 pendings [pendingcnt - 1].events = events; 187 pendings [pendingcnt - 1].events = events;
173 } 188}
189
190static void
191queue_events (W *events, int eventcnt, int type)
192{
193 int i;
194
195 for (i = 0; i < eventcnt; ++i)
196 event (events [i], type);
174} 197}
175 198
176static void 199static void
177fd_event (int fd, int events) 200fd_event (int fd, int events)
178{ 201{
… …
186 if (ev) 209 if (ev)
187 event ((W)w, ev); 210 event ((W)w, ev);
188 } 211 }
189} 212}
190 213
214/*****************************************************************************/
215
216static int *fdchanges;
217static int fdchangemax, fdchangecnt;
218
191static void 219static void
192queue_events (W *events, int eventcnt, int type) 220fd_reify (void)
193{ 221{
194 int i; 222 int i;
195 223
196 for (i = 0; i < eventcnt; ++i) 224 for (i = 0; i < fdchangecnt; ++i)
197 event (events [i], type); 225 {
226 int fd = fdchanges [i];
227 ANFD *anfd = anfds + fd;
228 struct ev_io *w;
229
230 int events = 0;
231
232 for (w = anfd->head; w; w = w->next)
233 events |= w->events;
234
235 anfd->reify = 0;
236
237 if (anfd->events != events)
238 {
239 method_modify (fd, anfd->events, events);
240 anfd->events = events;
241 }
242 }
243
244 fdchangecnt = 0;
245}
246
247static void
248fd_change (int fd)
249{
250 if (anfds [fd].reify || fdchangecnt < 0)
251 return;
252
253 anfds [fd].reify = 1;
254
255 ++fdchangecnt;
256 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
257 fdchanges [fdchangecnt - 1] = fd;
198} 258}
199 259
200/* called on EBADF to verify fds */ 260/* called on EBADF to verify fds */
201static void 261static void
202fd_recheck () 262fd_recheck (void)
203{ 263{
204 int fd; 264 int fd;
205 265
206 for (fd = 0; fd < anfdmax; ++fd) 266 for (fd = 0; fd < anfdmax; ++fd)
207 if (anfds [fd].wev) 267 if (anfds [fd].events)
208 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 268 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
209 while (anfds [fd].head) 269 while (anfds [fd].head)
270 {
210 evio_stop (anfds [fd].head); 271 ev_io_stop (anfds [fd].head);
272 event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE);
273 }
211} 274}
212 275
213/*****************************************************************************/ 276/*****************************************************************************/
214 277
215static struct ev_timer **timers; 278static struct ev_timer **timers;
… …
262/*****************************************************************************/ 325/*****************************************************************************/
263 326
264typedef struct 327typedef struct
265{ 328{
266 struct ev_signal *head; 329 struct ev_signal *head;
267 sig_atomic_t gotsig; 330 sig_atomic_t volatile gotsig;
268} ANSIG; 331} ANSIG;
269 332
270static ANSIG *signals; 333static ANSIG *signals;
271static int signalmax; 334static int signalmax;
272 335
273static int sigpipe [2]; 336static int sigpipe [2];
274static sig_atomic_t gotsig; 337static sig_atomic_t volatile gotsig;
275static struct ev_io sigev; 338static struct ev_io sigev;
276 339
277static void 340static void
278signals_init (ANSIG *base, int count) 341signals_init (ANSIG *base, int count)
279{ 342{
280 while (count--) 343 while (count--)
281 { 344 {
282 base->head = 0; 345 base->head = 0;
283 base->gotsig = 0; 346 base->gotsig = 0;
347
284 ++base; 348 ++base;
285 } 349 }
286} 350}
287 351
288static void 352static void
… …
291 signals [signum - 1].gotsig = 1; 355 signals [signum - 1].gotsig = 1;
292 356
293 if (!gotsig) 357 if (!gotsig)
294 { 358 {
295 gotsig = 1; 359 gotsig = 1;
296 write (sigpipe [1], &gotsig, 1); 360 write (sigpipe [1], &signum, 1);
297 } 361 }
298} 362}
299 363
300static void 364static void
301sigcb (struct ev_io *iow, int revents) 365sigcb (struct ev_io *iow, int revents)
302{ 366{
303 struct ev_signal *w; 367 struct ev_signal *w;
304 int sig; 368 int sig;
305 369
370 read (sigpipe [0], &revents, 1);
306 gotsig = 0; 371 gotsig = 0;
307 read (sigpipe [0], &revents, 1);
308 372
309 for (sig = signalmax; sig--; ) 373 for (sig = signalmax; sig--; )
310 if (signals [sig].gotsig) 374 if (signals [sig].gotsig)
311 { 375 {
312 signals [sig].gotsig = 0; 376 signals [sig].gotsig = 0;
… …
324 388
325 /* rather than sort out wether we really need nb, set it */ 389 /* rather than sort out wether we really need nb, set it */
326 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 390 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
327 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 391 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
328 392
329 evio_set (&sigev, sigpipe [0], EV_READ); 393 ev_io_set (&sigev, sigpipe [0], EV_READ);
330 evio_start (&sigev); 394 ev_io_start (&sigev);
331} 395}
332 396
333/*****************************************************************************/ 397/*****************************************************************************/
334 398
335static struct ev_idle **idles; 399static struct ev_idle **idles;
… …
365 } 429 }
366} 430}
367 431
368/*****************************************************************************/ 432/*****************************************************************************/
369 433
370#if HAVE_EPOLL 434#if EV_USE_EPOLL
371# include "ev_epoll.c" 435# include "ev_epoll.c"
372#endif 436#endif
373#if HAVE_SELECT 437#if EV_USE_SELECT
374# include "ev_select.c" 438# include "ev_select.c"
375#endif 439#endif
376 440
441int
442ev_version_major (void)
443{
444 return EV_VERSION_MAJOR;
445}
446
447int
448ev_version_minor (void)
449{
450 return EV_VERSION_MINOR;
451}
452
377int ev_init (int flags) 453int ev_init (int flags)
378{ 454{
379 if (!ev_method) 455 if (!ev_method)
380 { 456 {
381#if HAVE_MONOTONIC 457#if EV_USE_MONOTONIC
382 { 458 {
383 struct timespec ts; 459 struct timespec ts;
384 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 460 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
385 have_monotonic = 1; 461 have_monotonic = 1;
386 } 462 }
… …
392 468
393 if (pipe (sigpipe)) 469 if (pipe (sigpipe))
394 return 0; 470 return 0;
395 471
396 ev_method = EVMETHOD_NONE; 472 ev_method = EVMETHOD_NONE;
397#if HAVE_EPOLL 473#if EV_USE_EPOLL
398 if (ev_method == EVMETHOD_NONE) epoll_init (flags); 474 if (ev_method == EVMETHOD_NONE) epoll_init (flags);
399#endif 475#endif
400#if HAVE_SELECT 476#if EV_USE_SELECT
401 if (ev_method == EVMETHOD_NONE) select_init (flags); 477 if (ev_method == EVMETHOD_NONE) select_init (flags);
402#endif 478#endif
403 479
404 if (ev_method) 480 if (ev_method)
405 { 481 {
406 evw_init (&sigev, sigcb); 482 ev_watcher_init (&sigev, sigcb);
407 siginit (); 483 siginit ();
408 484
409 evsignal_init (&childev, childcb, SIGCHLD); 485 ev_signal_init (&childev, childcb, SIGCHLD);
410 evsignal_start (&childev); 486 ev_signal_start (&childev);
411 } 487 }
412 } 488 }
413 489
414 return ev_method; 490 return ev_method;
415} 491}
416 492
417/*****************************************************************************/ 493/*****************************************************************************/
418 494
419void ev_prefork (void) 495void
496ev_fork_prepare (void)
420{ 497{
421 /* nop */ 498 /* nop */
422} 499}
423 500
501void
424void ev_postfork_parent (void) 502ev_fork_parent (void)
425{ 503{
426 /* nop */ 504 /* nop */
427} 505}
428 506
507void
429void ev_postfork_child (void) 508ev_fork_child (void)
430{ 509{
431#if HAVE_EPOLL 510#if EV_USE_EPOLL
432 if (ev_method == EVMETHOD_EPOLL) 511 if (ev_method == EVMETHOD_EPOLL)
433 epoll_postfork_child (); 512 epoll_postfork_child ();
434#endif 513#endif
435 514
436 evio_stop (&sigev); 515 ev_io_stop (&sigev);
437 close (sigpipe [0]); 516 close (sigpipe [0]);
438 close (sigpipe [1]); 517 close (sigpipe [1]);
439 pipe (sigpipe); 518 pipe (sigpipe);
440 siginit (); 519 siginit ();
441} 520}
442 521
443/*****************************************************************************/ 522/*****************************************************************************/
444 523
445static void 524static void
446fd_reify (void)
447{
448 int i;
449
450 for (i = 0; i < fdchangecnt; ++i)
451 {
452 int fd = fdchanges [i];
453 ANFD *anfd = anfds + fd;
454 struct ev_io *w;
455
456 int wev = 0;
457
458 for (w = anfd->head; w; w = w->next)
459 wev |= w->events;
460
461 if (anfd->wev != wev)
462 {
463 method_modify (fd, anfd->wev, wev);
464 anfd->wev = wev;
465 }
466 }
467
468 fdchangecnt = 0;
469}
470
471static void
472call_pending () 525call_pending (void)
473{ 526{
474 while (pendingcnt) 527 while (pendingcnt)
475 { 528 {
476 ANPENDING *p = pendings + --pendingcnt; 529 ANPENDING *p = pendings + --pendingcnt;
477 530
… …
482 } 535 }
483 } 536 }
484} 537}
485 538
486static void 539static void
487timers_reify () 540timers_reify (void)
488{ 541{
489 while (timercnt && timers [0]->at <= now) 542 while (timercnt && timers [0]->at <= now)
490 { 543 {
491 struct ev_timer *w = timers [0]; 544 struct ev_timer *w = timers [0];
492
493 event ((W)w, EV_TIMEOUT);
494 545
495 /* first reschedule or stop timer */ 546 /* first reschedule or stop timer */
496 if (w->repeat) 547 if (w->repeat)
497 { 548 {
549 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
498 w->at = now + w->repeat; 550 w->at = now + w->repeat;
499 assert (("timer timeout in the past, negative repeat?", w->at > now));
500 downheap ((WT *)timers, timercnt, 0); 551 downheap ((WT *)timers, timercnt, 0);
501 } 552 }
502 else 553 else
503 evtimer_stop (w); /* nonrepeating: stop timer */ 554 ev_timer_stop (w); /* nonrepeating: stop timer */
504 }
505}
506 555
556 event ((W)w, EV_TIMEOUT);
557 }
558}
559
507static void 560static void
508periodics_reify () 561periodics_reify (void)
509{ 562{
510 while (periodiccnt && periodics [0]->at <= ev_now) 563 while (periodiccnt && periodics [0]->at <= ev_now)
511 { 564 {
512 struct ev_periodic *w = periodics [0]; 565 struct ev_periodic *w = periodics [0];
513 566
514 /* first reschedule or stop timer */ 567 /* first reschedule or stop timer */
515 if (w->interval) 568 if (w->interval)
516 { 569 {
517 w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; 570 w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
518 assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); 571 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
519 downheap ((WT *)periodics, periodiccnt, 0); 572 downheap ((WT *)periodics, periodiccnt, 0);
520 } 573 }
521 else 574 else
522 evperiodic_stop (w); /* nonrepeating: stop timer */ 575 ev_periodic_stop (w); /* nonrepeating: stop timer */
523 576
524 event ((W)w, EV_TIMEOUT); 577 event ((W)w, EV_PERIODIC);
525 } 578 }
526} 579}
527 580
528static void 581static void
529periodics_reschedule (ev_tstamp diff) 582periodics_reschedule (ev_tstamp diff)
… …
539 { 592 {
540 ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; 593 ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
541 594
542 if (fabs (diff) >= 1e-4) 595 if (fabs (diff) >= 1e-4)
543 { 596 {
544 evperiodic_stop (w); 597 ev_periodic_stop (w);
545 evperiodic_start (w); 598 ev_periodic_start (w);
546 599
547 i = 0; /* restart loop, inefficient, but time jumps should be rare */ 600 i = 0; /* restart loop, inefficient, but time jumps should be rare */
548 } 601 }
549 } 602 }
550 } 603 }
551} 604}
552 605
553static void 606static void
554time_update () 607time_update (void)
555{ 608{
556 int i; 609 int i;
557 610
558 ev_now = ev_time (); 611 ev_now = ev_time ();
559 612
… …
593int ev_loop_done; 646int ev_loop_done;
594 647
595void ev_loop (int flags) 648void ev_loop (int flags)
596{ 649{
597 double block; 650 double block;
598 ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0; 651 ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
599 652
600 do 653 do
601 { 654 {
602 /* queue check watchers (and execute them) */ 655 /* queue check watchers (and execute them) */
603 if (preparecnt) 656 if (preparecnt)
… …
684 head = &(*head)->next; 737 head = &(*head)->next;
685 } 738 }
686} 739}
687 740
688static void 741static void
689ev_clear (W w) 742ev_clear_pending (W w)
690{ 743{
691 if (w->pending) 744 if (w->pending)
692 { 745 {
693 pendings [w->pending - 1].w = 0; 746 pendings [w->pending - 1].w = 0;
694 w->pending = 0; 747 w->pending = 0;
… …
708} 761}
709 762
710/*****************************************************************************/ 763/*****************************************************************************/
711 764
712void 765void
713evio_start (struct ev_io *w) 766ev_io_start (struct ev_io *w)
714{ 767{
715 if (ev_is_active (w)) 768 if (ev_is_active (w))
716 return; 769 return;
717 770
718 int fd = w->fd; 771 int fd = w->fd;
772
773 assert (("ev_io_start called with negative fd", fd >= 0));
719 774
720 ev_start ((W)w, 1); 775 ev_start ((W)w, 1);
721 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 776 array_needsize (anfds, anfdmax, fd + 1, anfds_init);
722 wlist_add ((WL *)&anfds[fd].head, (WL)w); 777 wlist_add ((WL *)&anfds[fd].head, (WL)w);
723 778
724 ++fdchangecnt; 779 fd_change (fd);
725 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
726 fdchanges [fdchangecnt - 1] = fd;
727} 780}
728 781
729void 782void
730evio_stop (struct ev_io *w) 783ev_io_stop (struct ev_io *w)
731{ 784{
732 ev_clear ((W)w); 785 ev_clear_pending ((W)w);
733 if (!ev_is_active (w)) 786 if (!ev_is_active (w))
734 return; 787 return;
735 788
736 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 789 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
737 ev_stop ((W)w); 790 ev_stop ((W)w);
738 791
739 ++fdchangecnt; 792 fd_change (w->fd);
740 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
741 fdchanges [fdchangecnt - 1] = w->fd;
742} 793}
743 794
744void 795void
745evtimer_start (struct ev_timer *w) 796ev_timer_start (struct ev_timer *w)
746{ 797{
747 if (ev_is_active (w)) 798 if (ev_is_active (w))
748 return; 799 return;
749 800
750 w->at += now; 801 w->at += now;
751 802
752 assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); 803 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
753 804
754 ev_start ((W)w, ++timercnt); 805 ev_start ((W)w, ++timercnt);
755 array_needsize (timers, timermax, timercnt, ); 806 array_needsize (timers, timermax, timercnt, );
756 timers [timercnt - 1] = w; 807 timers [timercnt - 1] = w;
757 upheap ((WT *)timers, timercnt - 1); 808 upheap ((WT *)timers, timercnt - 1);
758} 809}
759 810
760void 811void
761evtimer_stop (struct ev_timer *w) 812ev_timer_stop (struct ev_timer *w)
762{ 813{
763 ev_clear ((W)w); 814 ev_clear_pending ((W)w);
764 if (!ev_is_active (w)) 815 if (!ev_is_active (w))
765 return; 816 return;
766 817
767 if (w->active < timercnt--) 818 if (w->active < timercnt--)
768 { 819 {
… …
774 825
775 ev_stop ((W)w); 826 ev_stop ((W)w);
776} 827}
777 828
778void 829void
779evtimer_again (struct ev_timer *w) 830ev_timer_again (struct ev_timer *w)
780{ 831{
781 if (ev_is_active (w)) 832 if (ev_is_active (w))
782 { 833 {
783 if (w->repeat) 834 if (w->repeat)
784 { 835 {
785 w->at = now + w->repeat; 836 w->at = now + w->repeat;
786 downheap ((WT *)timers, timercnt, w->active - 1); 837 downheap ((WT *)timers, timercnt, w->active - 1);
787 } 838 }
788 else 839 else
789 evtimer_stop (w); 840 ev_timer_stop (w);
790 } 841 }
791 else if (w->repeat) 842 else if (w->repeat)
792 evtimer_start (w); 843 ev_timer_start (w);
793} 844}
794 845
795void 846void
796evperiodic_start (struct ev_periodic *w) 847ev_periodic_start (struct ev_periodic *w)
797{ 848{
798 if (ev_is_active (w)) 849 if (ev_is_active (w))
799 return; 850 return;
800 851
801 assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); 852 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
802 853
803 /* this formula differs from the one in periodic_reify because we do not always round up */ 854 /* this formula differs from the one in periodic_reify because we do not always round up */
804 if (w->interval) 855 if (w->interval)
805 w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; 856 w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
806 857
… …
809 periodics [periodiccnt - 1] = w; 860 periodics [periodiccnt - 1] = w;
810 upheap ((WT *)periodics, periodiccnt - 1); 861 upheap ((WT *)periodics, periodiccnt - 1);
811} 862}
812 863
813void 864void
814evperiodic_stop (struct ev_periodic *w) 865ev_periodic_stop (struct ev_periodic *w)
815{ 866{
816 ev_clear ((W)w); 867 ev_clear_pending ((W)w);
817 if (!ev_is_active (w)) 868 if (!ev_is_active (w))
818 return; 869 return;
819 870
820 if (w->active < periodiccnt--) 871 if (w->active < periodiccnt--)
821 { 872 {
… …
825 876
826 ev_stop ((W)w); 877 ev_stop ((W)w);
827} 878}
828 879
829void 880void
830evsignal_start (struct ev_signal *w) 881ev_signal_start (struct ev_signal *w)
831{ 882{
832 if (ev_is_active (w)) 883 if (ev_is_active (w))
833 return; 884 return;
885
886 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
834 887
835 ev_start ((W)w, 1); 888 ev_start ((W)w, 1);
836 array_needsize (signals, signalmax, w->signum, signals_init); 889 array_needsize (signals, signalmax, w->signum, signals_init);
837 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 890 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
838 891
… …
845 sigaction (w->signum, &sa, 0); 898 sigaction (w->signum, &sa, 0);
846 } 899 }
847} 900}
848 901
849void 902void
850evsignal_stop (struct ev_signal *w) 903ev_signal_stop (struct ev_signal *w)
851{ 904{
852 ev_clear ((W)w); 905 ev_clear_pending ((W)w);
853 if (!ev_is_active (w)) 906 if (!ev_is_active (w))
854 return; 907 return;
855 908
856 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 909 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
857 ev_stop ((W)w); 910 ev_stop ((W)w);
858 911
859 if (!signals [w->signum - 1].head) 912 if (!signals [w->signum - 1].head)
860 signal (w->signum, SIG_DFL); 913 signal (w->signum, SIG_DFL);
861} 914}
862 915
916void
863void evidle_start (struct ev_idle *w) 917ev_idle_start (struct ev_idle *w)
864{ 918{
865 if (ev_is_active (w)) 919 if (ev_is_active (w))
866 return; 920 return;
867 921
868 ev_start ((W)w, ++idlecnt); 922 ev_start ((W)w, ++idlecnt);
869 array_needsize (idles, idlemax, idlecnt, ); 923 array_needsize (idles, idlemax, idlecnt, );
870 idles [idlecnt - 1] = w; 924 idles [idlecnt - 1] = w;
871} 925}
872 926
927void
873void evidle_stop (struct ev_idle *w) 928ev_idle_stop (struct ev_idle *w)
874{ 929{
875 ev_clear ((W)w); 930 ev_clear_pending ((W)w);
876 if (ev_is_active (w)) 931 if (ev_is_active (w))
877 return; 932 return;
878 933
879 idles [w->active - 1] = idles [--idlecnt]; 934 idles [w->active - 1] = idles [--idlecnt];
880 ev_stop ((W)w); 935 ev_stop ((W)w);
881} 936}
882 937
938void
883void evprepare_start (struct ev_prepare *w) 939ev_prepare_start (struct ev_prepare *w)
884{ 940{
885 if (ev_is_active (w)) 941 if (ev_is_active (w))
886 return; 942 return;
887 943
888 ev_start ((W)w, ++preparecnt); 944 ev_start ((W)w, ++preparecnt);
889 array_needsize (prepares, preparemax, preparecnt, ); 945 array_needsize (prepares, preparemax, preparecnt, );
890 prepares [preparecnt - 1] = w; 946 prepares [preparecnt - 1] = w;
891} 947}
892 948
949void
893void evprepare_stop (struct ev_prepare *w) 950ev_prepare_stop (struct ev_prepare *w)
894{ 951{
895 ev_clear ((W)w); 952 ev_clear_pending ((W)w);
896 if (ev_is_active (w)) 953 if (ev_is_active (w))
897 return; 954 return;
898 955
899 prepares [w->active - 1] = prepares [--preparecnt]; 956 prepares [w->active - 1] = prepares [--preparecnt];
900 ev_stop ((W)w); 957 ev_stop ((W)w);
901} 958}
902 959
960void
903void evcheck_start (struct ev_check *w) 961ev_check_start (struct ev_check *w)
904{ 962{
905 if (ev_is_active (w)) 963 if (ev_is_active (w))
906 return; 964 return;
907 965
908 ev_start ((W)w, ++checkcnt); 966 ev_start ((W)w, ++checkcnt);
909 array_needsize (checks, checkmax, checkcnt, ); 967 array_needsize (checks, checkmax, checkcnt, );
910 checks [checkcnt - 1] = w; 968 checks [checkcnt - 1] = w;
911} 969}
912 970
971void
913void evcheck_stop (struct ev_check *w) 972ev_check_stop (struct ev_check *w)
914{ 973{
915 ev_clear ((W)w); 974 ev_clear_pending ((W)w);
916 if (ev_is_active (w)) 975 if (ev_is_active (w))
917 return; 976 return;
918 977
919 checks [w->active - 1] = checks [--checkcnt]; 978 checks [w->active - 1] = checks [--checkcnt];
920 ev_stop ((W)w); 979 ev_stop ((W)w);
921} 980}
922 981
982void
923void evchild_start (struct ev_child *w) 983ev_child_start (struct ev_child *w)
924{ 984{
925 if (ev_is_active (w)) 985 if (ev_is_active (w))
926 return; 986 return;
927 987
928 ev_start ((W)w, 1); 988 ev_start ((W)w, 1);
929 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 989 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
930} 990}
931 991
992void
932void evchild_stop (struct ev_child *w) 993ev_child_stop (struct ev_child *w)
933{ 994{
934 ev_clear ((W)w); 995 ev_clear_pending ((W)w);
935 if (ev_is_active (w)) 996 if (ev_is_active (w))
936 return; 997 return;
937 998
938 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 999 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
939 ev_stop ((W)w); 1000 ev_stop ((W)w);
… …
953once_cb (struct ev_once *once, int revents) 1014once_cb (struct ev_once *once, int revents)
954{ 1015{
955 void (*cb)(int revents, void *arg) = once->cb; 1016 void (*cb)(int revents, void *arg) = once->cb;
956 void *arg = once->arg; 1017 void *arg = once->arg;
957 1018
958 evio_stop (&once->io); 1019 ev_io_stop (&once->io);
959 evtimer_stop (&once->to); 1020 ev_timer_stop (&once->to);
960 free (once); 1021 free (once);
961 1022
962 cb (revents, arg); 1023 cb (revents, arg);
963} 1024}
964 1025
… …
978ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1039ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
979{ 1040{
980 struct ev_once *once = malloc (sizeof (struct ev_once)); 1041 struct ev_once *once = malloc (sizeof (struct ev_once));
981 1042
982 if (!once) 1043 if (!once)
983 cb (EV_ERROR, arg); 1044 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
984 else 1045 else
985 { 1046 {
986 once->cb = cb; 1047 once->cb = cb;
987 once->arg = arg; 1048 once->arg = arg;
988 1049
989 evw_init (&once->io, once_cb_io); 1050 ev_watcher_init (&once->io, once_cb_io);
990
991 if (fd >= 0) 1051 if (fd >= 0)
992 { 1052 {
993 evio_set (&once->io, fd, events); 1053 ev_io_set (&once->io, fd, events);
994 evio_start (&once->io); 1054 ev_io_start (&once->io);
995 } 1055 }
996 1056
997 evw_init (&once->to, once_cb_to); 1057 ev_watcher_init (&once->to, once_cb_to);
998
999 if (timeout >= 0.) 1058 if (timeout >= 0.)
1000 { 1059 {
1001 evtimer_set (&once->to, timeout, 0.); 1060 ev_timer_set (&once->to, timeout, 0.);
1002 evtimer_start (&once->to); 1061 ev_timer_start (&once->to);
1003 } 1062 }
1004 } 1063 }
1005} 1064}
1006 1065
1007/*****************************************************************************/ 1066/*****************************************************************************/
… …
1018 1077
1019static void 1078static void
1020ocb (struct ev_timer *w, int revents) 1079ocb (struct ev_timer *w, int revents)
1021{ 1080{
1022 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); 1081 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1023 evtimer_stop (w); 1082 ev_timer_stop (w);
1024 evtimer_start (w); 1083 ev_timer_start (w);
1025} 1084}
1026 1085
1027static void 1086static void
1028scb (struct ev_signal *w, int revents) 1087scb (struct ev_signal *w, int revents)
1029{ 1088{
1030 fprintf (stderr, "signal %x,%d\n", revents, w->signum); 1089 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1031 evio_stop (&wio); 1090 ev_io_stop (&wio);
1032 evio_start (&wio); 1091 ev_io_start (&wio);
1033} 1092}
1034 1093
1035static void 1094static void
1036gcb (struct ev_signal *w, int revents) 1095gcb (struct ev_signal *w, int revents)
1037{ 1096{
… …
1041 1100
1042int main (void) 1101int main (void)
1043{ 1102{
1044 ev_init (0); 1103 ev_init (0);
1045 1104
1046 evio_init (&wio, sin_cb, 0, EV_READ); 1105 ev_io_init (&wio, sin_cb, 0, EV_READ);
1047 evio_start (&wio); 1106 ev_io_start (&wio);
1048 1107
1049 struct ev_timer t[10000]; 1108 struct ev_timer t[10000];
1050 1109
1051#if 0 1110#if 0
1052 int i; 1111 int i;
1053 for (i = 0; i < 10000; ++i) 1112 for (i = 0; i < 10000; ++i)
1054 { 1113 {
1055 struct ev_timer *w = t + i; 1114 struct ev_timer *w = t + i;
1056 evw_init (w, ocb, i); 1115 ev_watcher_init (w, ocb, i);
1057 evtimer_init_abs (w, ocb, drand48 (), 0.99775533); 1116 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1058 evtimer_start (w); 1117 ev_timer_start (w);
1059 if (drand48 () < 0.5) 1118 if (drand48 () < 0.5)
1060 evtimer_stop (w); 1119 ev_timer_stop (w);
1061 } 1120 }
1062#endif 1121#endif
1063 1122
1064 struct ev_timer t1; 1123 struct ev_timer t1;
1065 evtimer_init (&t1, ocb, 5, 10); 1124 ev_timer_init (&t1, ocb, 5, 10);
1066 evtimer_start (&t1); 1125 ev_timer_start (&t1);
1067 1126
1068 struct ev_signal sig; 1127 struct ev_signal sig;
1069 evsignal_init (&sig, scb, SIGQUIT); 1128 ev_signal_init (&sig, scb, SIGQUIT);
1070 evsignal_start (&sig); 1129 ev_signal_start (&sig);
1071 1130
1072 struct ev_check cw; 1131 struct ev_check cw;
1073 evcheck_init (&cw, gcb); 1132 ev_check_init (&cw, gcb);
1074 evcheck_start (&cw); 1133 ev_check_start (&cw);
1075 1134
1076 struct ev_idle iw; 1135 struct ev_idle iw;
1077 evidle_init (&iw, gcb); 1136 ev_idle_init (&iw, gcb);
1078 evidle_start (&iw); 1137 ev_idle_start (&iw);
1079 1138
1080 ev_loop (0); 1139 ev_loop (0);
1081 1140
1082 return 0; 1141 return 0;
1083} 1142}

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