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Comparing libev/ev.c (file contents):
Revision 1.50 by root, Sat Nov 3 19:41:55 2007 UTC vs.
Revision 1.56 by root, Sun Nov 4 15:58:49 2007 UTC

… …
58 58
59#ifndef EV_USE_SELECT 59#ifndef EV_USE_SELECT
60# define EV_USE_SELECT 1 60# define EV_USE_SELECT 1
61#endif 61#endif
62 62
63#ifndef EV_USE_POLL 63#ifndef EV_USEV_POLL
64# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ 64# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
65#endif 65#endif
66 66
67#ifndef EV_USE_EPOLL 67#ifndef EV_USE_EPOLL
68# define EV_USE_EPOLL 0 68# define EV_USE_EPOLL 0
69#endif 69#endif
… …
113 113
114typedef struct ev_watcher *W; 114typedef struct ev_watcher *W;
115typedef struct ev_watcher_list *WL; 115typedef struct ev_watcher_list *WL;
116typedef struct ev_watcher_time *WT; 116typedef struct ev_watcher_time *WT;
117 117
118static ev_tstamp now_floor, now, diff; /* monotonic clock */ 118static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119ev_tstamp ev_now;
120int ev_method;
121
122static int have_monotonic; /* runtime */
123
124static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
125static void (*method_modify)(int fd, int oev, int nev);
126static void (*method_poll)(ev_tstamp timeout);
127 119
128/*****************************************************************************/ 120/*****************************************************************************/
129 121
130ev_tstamp 122typedef struct
123{
124 struct ev_watcher_list *head;
125 unsigned char events;
126 unsigned char reify;
127} ANFD;
128
129typedef struct
130{
131 W w;
132 int events;
133} ANPENDING;
134
135#if EV_MULTIPLICITY
136
137struct ev_loop
138{
139# define VAR(name,decl) decl;
140# include "ev_vars.h"
141};
142# undef VAR
143# include "ev_wrap.h"
144
145#else
146
147# define VAR(name,decl) static decl;
148# include "ev_vars.h"
149# undef VAR
150
151#endif
152
153/*****************************************************************************/
154
155inline ev_tstamp
131ev_time (void) 156ev_time (void)
132{ 157{
133#if EV_USE_REALTIME 158#if EV_USE_REALTIME
134 struct timespec ts; 159 struct timespec ts;
135 clock_gettime (CLOCK_REALTIME, &ts); 160 clock_gettime (CLOCK_REALTIME, &ts);
… …
139 gettimeofday (&tv, 0); 164 gettimeofday (&tv, 0);
140 return tv.tv_sec + tv.tv_usec * 1e-6; 165 return tv.tv_sec + tv.tv_usec * 1e-6;
141#endif 166#endif
142} 167}
143 168
144static ev_tstamp 169inline ev_tstamp
145get_clock (void) 170get_clock (void)
146{ 171{
147#if EV_USE_MONOTONIC 172#if EV_USE_MONOTONIC
148 if (expect_true (have_monotonic)) 173 if (expect_true (have_monotonic))
149 { 174 {
… …
152 return ts.tv_sec + ts.tv_nsec * 1e-9; 177 return ts.tv_sec + ts.tv_nsec * 1e-9;
153 } 178 }
154#endif 179#endif
155 180
156 return ev_time (); 181 return ev_time ();
182}
183
184ev_tstamp
185ev_now (EV_P)
186{
187 return rt_now;
157} 188}
158 189
159#define array_roundsize(base,n) ((n) | 4 & ~3) 190#define array_roundsize(base,n) ((n) | 4 & ~3)
160 191
161#define array_needsize(base,cur,cnt,init) \ 192#define array_needsize(base,cur,cnt,init) \
… …
173 cur = newcnt; \ 204 cur = newcnt; \
174 } 205 }
175 206
176/*****************************************************************************/ 207/*****************************************************************************/
177 208
178typedef struct
179{
180 struct ev_watcher_list *head;
181 unsigned char events;
182 unsigned char reify;
183} ANFD;
184
185static ANFD *anfds;
186static int anfdmax;
187
188static void 209static void
189anfds_init (ANFD *base, int count) 210anfds_init (ANFD *base, int count)
190{ 211{
191 while (count--) 212 while (count--)
192 { 213 {
… …
196 217
197 ++base; 218 ++base;
198 } 219 }
199} 220}
200 221
201typedef struct
202{
203 W w;
204 int events;
205} ANPENDING;
206
207static ANPENDING *pendings [NUMPRI];
208static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210static void 222static void
211event (W w, int events) 223event (EV_P_ W w, int events)
212{ 224{
213 if (w->pending) 225 if (w->pending)
214 { 226 {
215 pendings [ABSPRI (w)][w->pending - 1].events |= events; 227 pendings [ABSPRI (w)][w->pending - 1].events |= events;
216 return; 228 return;
… …
221 pendings [ABSPRI (w)][w->pending - 1].w = w; 233 pendings [ABSPRI (w)][w->pending - 1].w = w;
222 pendings [ABSPRI (w)][w->pending - 1].events = events; 234 pendings [ABSPRI (w)][w->pending - 1].events = events;
223} 235}
224 236
225static void 237static void
226queue_events (W *events, int eventcnt, int type) 238queue_events (EV_P_ W *events, int eventcnt, int type)
227{ 239{
228 int i; 240 int i;
229 241
230 for (i = 0; i < eventcnt; ++i) 242 for (i = 0; i < eventcnt; ++i)
231 event (events [i], type); 243 event (EV_A_ events [i], type);
232} 244}
233 245
234static void 246static void
235fd_event (int fd, int events) 247fd_event (EV_P_ int fd, int events)
236{ 248{
237 ANFD *anfd = anfds + fd; 249 ANFD *anfd = anfds + fd;
238 struct ev_io *w; 250 struct ev_io *w;
239 251
240 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 252 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
241 { 253 {
242 int ev = w->events & events; 254 int ev = w->events & events;
243 255
244 if (ev) 256 if (ev)
245 event ((W)w, ev); 257 event (EV_A_ (W)w, ev);
246 } 258 }
247} 259}
248 260
249/*****************************************************************************/ 261/*****************************************************************************/
250 262
251static int *fdchanges;
252static int fdchangemax, fdchangecnt;
253
254static void 263static void
255fd_reify (void) 264fd_reify (EV_P)
256{ 265{
257 int i; 266 int i;
258 267
259 for (i = 0; i < fdchangecnt; ++i) 268 for (i = 0; i < fdchangecnt; ++i)
260 { 269 {
… …
269 278
270 anfd->reify = 0; 279 anfd->reify = 0;
271 280
272 if (anfd->events != events) 281 if (anfd->events != events)
273 { 282 {
274 method_modify (fd, anfd->events, events); 283 method_modify (EV_A_ fd, anfd->events, events);
275 anfd->events = events; 284 anfd->events = events;
276 } 285 }
277 } 286 }
278 287
279 fdchangecnt = 0; 288 fdchangecnt = 0;
280} 289}
281 290
282static void 291static void
283fd_change (int fd) 292fd_change (EV_P_ int fd)
284{ 293{
285 if (anfds [fd].reify || fdchangecnt < 0) 294 if (anfds [fd].reify || fdchangecnt < 0)
286 return; 295 return;
287 296
288 anfds [fd].reify = 1; 297 anfds [fd].reify = 1;
… …
291 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 300 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
292 fdchanges [fdchangecnt - 1] = fd; 301 fdchanges [fdchangecnt - 1] = fd;
293} 302}
294 303
295static void 304static void
296fd_kill (int fd) 305fd_kill (EV_P_ int fd)
297{ 306{
298 struct ev_io *w; 307 struct ev_io *w;
299 308
300 while ((w = (struct ev_io *)anfds [fd].head)) 309 while ((w = (struct ev_io *)anfds [fd].head))
301 { 310 {
302 ev_io_stop (w); 311 ev_io_stop (EV_A_ w);
303 event ((W)w, EV_ERROR | EV_READ | EV_WRITE); 312 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
304 } 313 }
305} 314}
306 315
307/* called on EBADF to verify fds */ 316/* called on EBADF to verify fds */
308static void 317static void
309fd_ebadf (void) 318fd_ebadf (EV_P)
310{ 319{
311 int fd; 320 int fd;
312 321
313 for (fd = 0; fd < anfdmax; ++fd) 322 for (fd = 0; fd < anfdmax; ++fd)
314 if (anfds [fd].events) 323 if (anfds [fd].events)
315 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 324 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
316 fd_kill (fd); 325 fd_kill (EV_A_ fd);
317} 326}
318 327
319/* called on ENOMEM in select/poll to kill some fds and retry */ 328/* called on ENOMEM in select/poll to kill some fds and retry */
320static void 329static void
321fd_enomem (void) 330fd_enomem (EV_P)
322{ 331{
323 int fd = anfdmax; 332 int fd = anfdmax;
324 333
325 while (fd--) 334 while (fd--)
326 if (anfds [fd].events) 335 if (anfds [fd].events)
327 { 336 {
328 close (fd); 337 close (fd);
329 fd_kill (fd); 338 fd_kill (EV_A_ fd);
330 return; 339 return;
331 } 340 }
332} 341}
333 342
343/* susually called after fork if method needs to re-arm all fds from scratch */
344static void
345fd_rearm_all (EV_P)
346{
347 int fd;
348
349 /* this should be highly optimised to not do anything but set a flag */
350 for (fd = 0; fd < anfdmax; ++fd)
351 if (anfds [fd].events)
352 {
353 anfds [fd].events = 0;
354 fd_change (fd);
355 }
356}
357
334/*****************************************************************************/ 358/*****************************************************************************/
335 359
336static struct ev_timer **timers;
337static int timermax, timercnt;
338
339static struct ev_periodic **periodics;
340static int periodicmax, periodiccnt;
341
342static void 360static void
343upheap (WT *timers, int k) 361upheap (WT *heap, int k)
344{ 362{
345 WT w = timers [k]; 363 WT w = heap [k];
346 364
347 while (k && timers [k >> 1]->at > w->at) 365 while (k && heap [k >> 1]->at > w->at)
348 { 366 {
349 timers [k] = timers [k >> 1]; 367 heap [k] = heap [k >> 1];
350 timers [k]->active = k + 1; 368 heap [k]->active = k + 1;
351 k >>= 1; 369 k >>= 1;
352 } 370 }
353 371
354 timers [k] = w; 372 heap [k] = w;
355 timers [k]->active = k + 1; 373 heap [k]->active = k + 1;
356 374
357} 375}
358 376
359static void 377static void
360downheap (WT *timers, int N, int k) 378downheap (WT *heap, int N, int k)
361{ 379{
362 WT w = timers [k]; 380 WT w = heap [k];
363 381
364 while (k < (N >> 1)) 382 while (k < (N >> 1))
365 { 383 {
366 int j = k << 1; 384 int j = k << 1;
367 385
368 if (j + 1 < N && timers [j]->at > timers [j + 1]->at) 386 if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
369 ++j; 387 ++j;
370 388
371 if (w->at <= timers [j]->at) 389 if (w->at <= heap [j]->at)
372 break; 390 break;
373 391
374 timers [k] = timers [j]; 392 heap [k] = heap [j];
375 timers [k]->active = k + 1; 393 heap [k]->active = k + 1;
376 k = j; 394 k = j;
377 } 395 }
378 396
379 timers [k] = w; 397 heap [k] = w;
380 timers [k]->active = k + 1; 398 heap [k]->active = k + 1;
381} 399}
382 400
383/*****************************************************************************/ 401/*****************************************************************************/
384 402
385typedef struct 403typedef struct
… …
391static ANSIG *signals; 409static ANSIG *signals;
392static int signalmax; 410static int signalmax;
393 411
394static int sigpipe [2]; 412static int sigpipe [2];
395static sig_atomic_t volatile gotsig; 413static sig_atomic_t volatile gotsig;
396static struct ev_io sigev;
397 414
398static void 415static void
399signals_init (ANSIG *base, int count) 416signals_init (ANSIG *base, int count)
400{ 417{
401 while (count--) 418 while (count--)
… …
420 errno = old_errno; 437 errno = old_errno;
421 } 438 }
422} 439}
423 440
424static void 441static void
425sigcb (struct ev_io *iow, int revents) 442sigcb (EV_P_ struct ev_io *iow, int revents)
426{ 443{
427 struct ev_watcher_list *w; 444 struct ev_watcher_list *w;
428 int signum; 445 int signum;
429 446
430 read (sigpipe [0], &revents, 1); 447 read (sigpipe [0], &revents, 1);
… …
434 if (signals [signum].gotsig) 451 if (signals [signum].gotsig)
435 { 452 {
436 signals [signum].gotsig = 0; 453 signals [signum].gotsig = 0;
437 454
438 for (w = signals [signum].head; w; w = w->next) 455 for (w = signals [signum].head; w; w = w->next)
439 event ((W)w, EV_SIGNAL); 456 event (EV_A_ (W)w, EV_SIGNAL);
440 } 457 }
441} 458}
442 459
443static void 460static void
444siginit (void) 461siginit (EV_P)
445{ 462{
446#ifndef WIN32 463#ifndef WIN32
447 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 464 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
448 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); 465 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
449 466
… …
451 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 468 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
452 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 469 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
453#endif 470#endif
454 471
455 ev_io_set (&sigev, sigpipe [0], EV_READ); 472 ev_io_set (&sigev, sigpipe [0], EV_READ);
456 ev_io_start (&sigev); 473 ev_io_start (EV_A_ &sigev);
474 ev_unref (EV_A); /* child watcher should not keep loop alive */
457} 475}
458 476
459/*****************************************************************************/ 477/*****************************************************************************/
460
461static struct ev_idle **idles;
462static int idlemax, idlecnt;
463
464static struct ev_prepare **prepares;
465static int preparemax, preparecnt;
466
467static struct ev_check **checks;
468static int checkmax, checkcnt;
469
470/*****************************************************************************/
471
472static struct ev_child *childs [PID_HASHSIZE];
473static struct ev_signal childev;
474 478
475#ifndef WIN32 479#ifndef WIN32
476 480
477#ifndef WCONTINUED 481#ifndef WCONTINUED
478# define WCONTINUED 0 482# define WCONTINUED 0
479#endif 483#endif
480 484
481static void 485static void
482child_reap (struct ev_signal *sw, int chain, int pid, int status) 486child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
483{ 487{
484 struct ev_child *w; 488 struct ev_child *w;
485 489
486 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 490 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
487 if (w->pid == pid || !w->pid) 491 if (w->pid == pid || !w->pid)
488 { 492 {
489 w->priority = sw->priority; /* need to do it *now* */ 493 w->priority = sw->priority; /* need to do it *now* */
490 w->rpid = pid; 494 w->rpid = pid;
491 w->rstatus = status; 495 w->rstatus = status;
492 event ((W)w, EV_CHILD); 496 event (EV_A_ (W)w, EV_CHILD);
493 } 497 }
494} 498}
495 499
496static void 500static void
497childcb (struct ev_signal *sw, int revents) 501childcb (EV_P_ struct ev_signal *sw, int revents)
498{ 502{
499 int pid, status; 503 int pid, status;
500 504
501 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 505 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
502 { 506 {
503 /* make sure we are called again until all childs have been reaped */ 507 /* make sure we are called again until all childs have been reaped */
504 event ((W)sw, EV_SIGNAL); 508 event (EV_A_ (W)sw, EV_SIGNAL);
505 509
506 child_reap (sw, pid, pid, status); 510 child_reap (EV_A_ sw, pid, pid, status);
507 child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 511 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
508 } 512 }
509} 513}
510 514
511#endif 515#endif
512 516
… …
516# include "ev_kqueue.c" 520# include "ev_kqueue.c"
517#endif 521#endif
518#if EV_USE_EPOLL 522#if EV_USE_EPOLL
519# include "ev_epoll.c" 523# include "ev_epoll.c"
520#endif 524#endif
521#if EV_USE_POLL 525#if EV_USEV_POLL
522# include "ev_poll.c" 526# include "ev_poll.c"
523#endif 527#endif
524#if EV_USE_SELECT 528#if EV_USE_SELECT
525# include "ev_select.c" 529# include "ev_select.c"
526#endif 530#endif
… …
537 return EV_VERSION_MINOR; 541 return EV_VERSION_MINOR;
538} 542}
539 543
540/* return true if we are running with elevated privileges and should ignore env variables */ 544/* return true if we are running with elevated privileges and should ignore env variables */
541static int 545static int
542enable_secure () 546enable_secure (void)
543{ 547{
544#ifdef WIN32 548#ifdef WIN32
545 return 0; 549 return 0;
546#else 550#else
547 return getuid () != geteuid () 551 return getuid () != geteuid ()
548 || getgid () != getegid (); 552 || getgid () != getegid ();
549#endif 553#endif
550} 554}
551 555
552int ev_init (int methods) 556int
557ev_method (EV_P)
553{ 558{
559 return method;
560}
561
562static void
563loop_init (EV_P_ int methods)
564{
554 if (!ev_method) 565 if (!method)
555 { 566 {
556#if EV_USE_MONOTONIC 567#if EV_USE_MONOTONIC
557 { 568 {
558 struct timespec ts; 569 struct timespec ts;
559 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 570 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
560 have_monotonic = 1; 571 have_monotonic = 1;
561 } 572 }
562#endif 573#endif
563 574
564 ev_now = ev_time (); 575 rt_now = ev_time ();
565 now = get_clock (); 576 mn_now = get_clock ();
566 now_floor = now; 577 now_floor = mn_now;
567 diff = ev_now - now; 578 rtmn_diff = rt_now - mn_now;
568
569 if (pipe (sigpipe))
570 return 0;
571 579
572 if (methods == EVMETHOD_AUTO) 580 if (methods == EVMETHOD_AUTO)
573 if (!enable_secure () && getenv ("LIBEV_METHODS")) 581 if (!enable_secure () && getenv ("LIBEV_METHODS"))
574 methods = atoi (getenv ("LIBEV_METHODS")); 582 methods = atoi (getenv ("LIBEV_METHODS"));
575 else 583 else
576 methods = EVMETHOD_ANY; 584 methods = EVMETHOD_ANY;
577 585
578 ev_method = 0; 586 method = 0;
579#if EV_USE_KQUEUE 587#if EV_USE_KQUEUE
580 if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); 588 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
581#endif 589#endif
582#if EV_USE_EPOLL 590#if EV_USE_EPOLL
583 if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); 591 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
584#endif 592#endif
585#if EV_USE_POLL 593#if EV_USEV_POLL
586 if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); 594 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
587#endif 595#endif
588#if EV_USE_SELECT 596#if EV_USE_SELECT
589 if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); 597 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
590#endif 598#endif
599 }
600}
591 601
602void
603loop_destroy (EV_P)
604{
605#if EV_USE_KQUEUE
606 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
607#endif
608#if EV_USE_EPOLL
609 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
610#endif
611#if EV_USEV_POLL
612 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
613#endif
614#if EV_USE_SELECT
615 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
616#endif
617
618 method = 0;
619 /*TODO*/
620}
621
622void
623loop_fork (EV_P)
624{
625 /*TODO*/
626#if EV_USE_EPOLL
627 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
628#endif
629#if EV_USE_KQUEUE
630 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
631#endif
632}
633
634#if EV_MULTIPLICITY
635struct ev_loop *
636ev_loop_new (int methods)
637{
638 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
639
640 loop_init (EV_A_ methods);
641
642 if (ev_methods (EV_A))
643 return loop;
644
645 return 0;
646}
647
648void
649ev_loop_destroy (EV_P)
650{
651 loop_destroy (EV_A);
652 free (loop);
653}
654
655void
656ev_loop_fork (EV_P)
657{
658 loop_fork (EV_A);
659}
660
661#endif
662
663#if EV_MULTIPLICITY
664struct ev_loop default_loop_struct;
665static struct ev_loop *default_loop;
666
667struct ev_loop *
668#else
669static int default_loop;
670
671int
672#endif
673ev_default_loop (int methods)
674{
675 if (sigpipe [0] == sigpipe [1])
676 if (pipe (sigpipe))
677 return 0;
678
679 if (!default_loop)
680 {
681#if EV_MULTIPLICITY
682 struct ev_loop *loop = default_loop = &default_loop_struct;
683#else
684 default_loop = 1;
685#endif
686
687 loop_init (EV_A_ methods);
688
592 if (ev_method) 689 if (ev_method (EV_A))
593 { 690 {
594 ev_watcher_init (&sigev, sigcb); 691 ev_watcher_init (&sigev, sigcb);
595 ev_set_priority (&sigev, EV_MAXPRI); 692 ev_set_priority (&sigev, EV_MAXPRI);
596 siginit (); 693 siginit (EV_A);
597 694
598#ifndef WIN32 695#ifndef WIN32
599 ev_signal_init (&childev, childcb, SIGCHLD); 696 ev_signal_init (&childev, childcb, SIGCHLD);
600 ev_set_priority (&childev, EV_MAXPRI); 697 ev_set_priority (&childev, EV_MAXPRI);
601 ev_signal_start (&childev); 698 ev_signal_start (EV_A_ &childev);
699 ev_unref (EV_A); /* child watcher should not keep loop alive */
602#endif 700#endif
603 } 701 }
702 else
703 default_loop = 0;
604 } 704 }
605 705
606 return ev_method; 706 return default_loop;
607} 707}
608 708
609/*****************************************************************************/
610
611void 709void
612ev_fork_prepare (void) 710ev_default_destroy (void)
613{ 711{
614 /* nop */ 712 struct ev_loop *loop = default_loop;
615}
616 713
617void 714 ev_ref (EV_A); /* child watcher */
618ev_fork_parent (void) 715 ev_signal_stop (EV_A_ &childev);
619{
620 /* nop */
621}
622 716
623void 717 ev_ref (EV_A); /* signal watcher */
624ev_fork_child (void)
625{
626#if EV_USE_EPOLL
627 if (ev_method == EVMETHOD_EPOLL)
628 epoll_postfork_child ();
629#endif
630
631 ev_io_stop (&sigev); 718 ev_io_stop (EV_A_ &sigev);
719
720 close (sigpipe [0]); sigpipe [0] = 0;
721 close (sigpipe [1]); sigpipe [1] = 0;
722
723 loop_destroy (EV_A);
724}
725
726void
727ev_default_fork (EV_P)
728{
729 loop_fork (EV_A);
730
731 ev_io_stop (EV_A_ &sigev);
632 close (sigpipe [0]); 732 close (sigpipe [0]);
633 close (sigpipe [1]); 733 close (sigpipe [1]);
634 pipe (sigpipe); 734 pipe (sigpipe);
735
736 ev_ref (EV_A); /* signal watcher */
635 siginit (); 737 siginit (EV_A);
636} 738}
637 739
638/*****************************************************************************/ 740/*****************************************************************************/
639 741
640static void 742static void
641call_pending (void) 743call_pending (EV_P)
642{ 744{
643 int pri; 745 int pri;
644 746
645 for (pri = NUMPRI; pri--; ) 747 for (pri = NUMPRI; pri--; )
646 while (pendingcnt [pri]) 748 while (pendingcnt [pri])
… …
648 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 750 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
649 751
650 if (p->w) 752 if (p->w)
651 { 753 {
652 p->w->pending = 0; 754 p->w->pending = 0;
653 p->w->cb (p->w, p->events); 755 p->w->cb (EV_A_ p->w, p->events);
654 } 756 }
655 } 757 }
656} 758}
657 759
658static void 760static void
659timers_reify (void) 761timers_reify (EV_P)
660{ 762{
661 while (timercnt && timers [0]->at <= now) 763 while (timercnt && timers [0]->at <= mn_now)
662 { 764 {
663 struct ev_timer *w = timers [0]; 765 struct ev_timer *w = timers [0];
664 766
665 /* first reschedule or stop timer */ 767 /* first reschedule or stop timer */
666 if (w->repeat) 768 if (w->repeat)
667 { 769 {
668 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 770 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
669 w->at = now + w->repeat; 771 w->at = mn_now + w->repeat;
670 downheap ((WT *)timers, timercnt, 0); 772 downheap ((WT *)timers, timercnt, 0);
671 } 773 }
672 else 774 else
673 ev_timer_stop (w); /* nonrepeating: stop timer */ 775 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
674 776
675 event ((W)w, EV_TIMEOUT); 777 event (EV_A_ (W)w, EV_TIMEOUT);
676 } 778 }
677} 779}
678 780
679static void 781static void
680periodics_reify (void) 782periodics_reify (EV_P)
681{ 783{
682 while (periodiccnt && periodics [0]->at <= ev_now) 784 while (periodiccnt && periodics [0]->at <= rt_now)
683 { 785 {
684 struct ev_periodic *w = periodics [0]; 786 struct ev_periodic *w = periodics [0];
685 787
686 /* first reschedule or stop timer */ 788 /* first reschedule or stop timer */
687 if (w->interval) 789 if (w->interval)
688 { 790 {
689 w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; 791 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
690 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); 792 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
691 downheap ((WT *)periodics, periodiccnt, 0); 793 downheap ((WT *)periodics, periodiccnt, 0);
692 } 794 }
693 else 795 else
694 ev_periodic_stop (w); /* nonrepeating: stop timer */ 796 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
695 797
696 event ((W)w, EV_PERIODIC); 798 event (EV_A_ (W)w, EV_PERIODIC);
697 } 799 }
698} 800}
699 801
700static void 802static void
701periodics_reschedule (ev_tstamp diff) 803periodics_reschedule (EV_P)
702{ 804{
703 int i; 805 int i;
704 806
705 /* adjust periodics after time jump */ 807 /* adjust periodics after time jump */
706 for (i = 0; i < periodiccnt; ++i) 808 for (i = 0; i < periodiccnt; ++i)
707 { 809 {
708 struct ev_periodic *w = periodics [i]; 810 struct ev_periodic *w = periodics [i];
709 811
710 if (w->interval) 812 if (w->interval)
711 { 813 {
712 ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; 814 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
713 815
714 if (fabs (diff) >= 1e-4) 816 if (fabs (diff) >= 1e-4)
715 { 817 {
716 ev_periodic_stop (w); 818 ev_periodic_stop (EV_A_ w);
717 ev_periodic_start (w); 819 ev_periodic_start (EV_A_ w);
718 820
719 i = 0; /* restart loop, inefficient, but time jumps should be rare */ 821 i = 0; /* restart loop, inefficient, but time jumps should be rare */
720 } 822 }
721 } 823 }
722 } 824 }
723} 825}
724 826
725static int 827inline int
726time_update_monotonic (void) 828time_update_monotonic (EV_P)
727{ 829{
728 now = get_clock (); 830 mn_now = get_clock ();
729 831
730 if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) 832 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
731 { 833 {
732 ev_now = now + diff; 834 rt_now = rtmn_diff + mn_now;
733 return 0; 835 return 0;
734 } 836 }
735 else 837 else
736 { 838 {
737 now_floor = now; 839 now_floor = mn_now;
738 ev_now = ev_time (); 840 rt_now = ev_time ();
739 return 1; 841 return 1;
740 } 842 }
741} 843}
742 844
743static void 845static void
744time_update (void) 846time_update (EV_P)
745{ 847{
746 int i; 848 int i;
747 849
748#if EV_USE_MONOTONIC 850#if EV_USE_MONOTONIC
749 if (expect_true (have_monotonic)) 851 if (expect_true (have_monotonic))
750 { 852 {
751 if (time_update_monotonic ()) 853 if (time_update_monotonic (EV_A))
752 { 854 {
753 ev_tstamp odiff = diff; 855 ev_tstamp odiff = rtmn_diff;
754 856
755 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 857 for (i = 4; --i; ) /* loop a few times, before making important decisions */
756 { 858 {
757 diff = ev_now - now; 859 rtmn_diff = rt_now - mn_now;
758 860
759 if (fabs (odiff - diff) < MIN_TIMEJUMP) 861 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
760 return; /* all is well */ 862 return; /* all is well */
761 863
762 ev_now = ev_time (); 864 rt_now = ev_time ();
763 now = get_clock (); 865 mn_now = get_clock ();
764 now_floor = now; 866 now_floor = mn_now;
765 } 867 }
766 868
767 periodics_reschedule (diff - odiff); 869 periodics_reschedule (EV_A);
768 /* no timer adjustment, as the monotonic clock doesn't jump */ 870 /* no timer adjustment, as the monotonic clock doesn't jump */
871 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
769 } 872 }
770 } 873 }
771 else 874 else
772#endif 875#endif
773 { 876 {
774 ev_now = ev_time (); 877 rt_now = ev_time ();
775 878
776 if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 879 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
777 { 880 {
778 periodics_reschedule (ev_now - now); 881 periodics_reschedule (EV_A);
779 882
780 /* adjust timers. this is easy, as the offset is the same for all */ 883 /* adjust timers. this is easy, as the offset is the same for all */
781 for (i = 0; i < timercnt; ++i) 884 for (i = 0; i < timercnt; ++i)
782 timers [i]->at += diff; 885 timers [i]->at += rt_now - mn_now;
783 } 886 }
784 887
785 now = ev_now; 888 mn_now = rt_now;
786 } 889 }
787} 890}
788 891
789int ev_loop_done; 892void
893ev_ref (EV_P)
894{
895 ++activecnt;
896}
790 897
898void
899ev_unref (EV_P)
900{
901 --activecnt;
902}
903
904static int loop_done;
905
906void
791void ev_loop (int flags) 907ev_loop (EV_P_ int flags)
792{ 908{
793 double block; 909 double block;
794 ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 910 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
795 911
796 do 912 do
797 { 913 {
798 /* queue check watchers (and execute them) */ 914 /* queue check watchers (and execute them) */
799 if (expect_false (preparecnt)) 915 if (expect_false (preparecnt))
800 { 916 {
801 queue_events ((W *)prepares, preparecnt, EV_PREPARE); 917 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
802 call_pending (); 918 call_pending (EV_A);
803 } 919 }
804 920
805 /* update fd-related kernel structures */ 921 /* update fd-related kernel structures */
806 fd_reify (); 922 fd_reify (EV_A);
807 923
808 /* calculate blocking time */ 924 /* calculate blocking time */
809 925
810 /* we only need this for !monotonic clockor timers, but as we basically 926 /* we only need this for !monotonic clockor timers, but as we basically
811 always have timers, we just calculate it always */ 927 always have timers, we just calculate it always */
812#if EV_USE_MONOTONIC 928#if EV_USE_MONOTONIC
813 if (expect_true (have_monotonic)) 929 if (expect_true (have_monotonic))
814 time_update_monotonic (); 930 time_update_monotonic (EV_A);
815 else 931 else
816#endif 932#endif
817 { 933 {
818 ev_now = ev_time (); 934 rt_now = ev_time ();
819 now = ev_now; 935 mn_now = rt_now;
820 } 936 }
821 937
822 if (flags & EVLOOP_NONBLOCK || idlecnt) 938 if (flags & EVLOOP_NONBLOCK || idlecnt)
823 block = 0.; 939 block = 0.;
824 else 940 else
825 { 941 {
826 block = MAX_BLOCKTIME; 942 block = MAX_BLOCKTIME;
827 943
828 if (timercnt) 944 if (timercnt)
829 { 945 {
830 ev_tstamp to = timers [0]->at - now + method_fudge; 946 ev_tstamp to = timers [0]->at - mn_now + method_fudge;
831 if (block > to) block = to; 947 if (block > to) block = to;
832 } 948 }
833 949
834 if (periodiccnt) 950 if (periodiccnt)
835 { 951 {
836 ev_tstamp to = periodics [0]->at - ev_now + method_fudge; 952 ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
837 if (block > to) block = to; 953 if (block > to) block = to;
838 } 954 }
839 955
840 if (block < 0.) block = 0.; 956 if (block < 0.) block = 0.;
841 } 957 }
842 958
843 method_poll (block); 959 method_poll (EV_A_ block);
844 960
845 /* update ev_now, do magic */ 961 /* update rt_now, do magic */
846 time_update (); 962 time_update (EV_A);
847 963
848 /* queue pending timers and reschedule them */ 964 /* queue pending timers and reschedule them */
849 timers_reify (); /* relative timers called last */ 965 timers_reify (EV_A); /* relative timers called last */
850 periodics_reify (); /* absolute timers called first */ 966 periodics_reify (EV_A); /* absolute timers called first */
851 967
852 /* queue idle watchers unless io or timers are pending */ 968 /* queue idle watchers unless io or timers are pending */
853 if (!pendingcnt) 969 if (!pendingcnt)
854 queue_events ((W *)idles, idlecnt, EV_IDLE); 970 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
855 971
856 /* queue check watchers, to be executed first */ 972 /* queue check watchers, to be executed first */
857 if (checkcnt) 973 if (checkcnt)
858 queue_events ((W *)checks, checkcnt, EV_CHECK); 974 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
859 975
860 call_pending (); 976 call_pending (EV_A);
861 } 977 }
862 while (!ev_loop_done); 978 while (activecnt && !loop_done);
863 979
864 if (ev_loop_done != 2) 980 if (loop_done != 2)
865 ev_loop_done = 0; 981 loop_done = 0;
982}
983
984void
985ev_unloop (EV_P_ int how)
986{
987 loop_done = how;
866} 988}
867 989
868/*****************************************************************************/ 990/*****************************************************************************/
869 991
870static void 992inline void
871wlist_add (WL *head, WL elem) 993wlist_add (WL *head, WL elem)
872{ 994{
873 elem->next = *head; 995 elem->next = *head;
874 *head = elem; 996 *head = elem;
875} 997}
876 998
877static void 999inline void
878wlist_del (WL *head, WL elem) 1000wlist_del (WL *head, WL elem)
879{ 1001{
880 while (*head) 1002 while (*head)
881 { 1003 {
882 if (*head == elem) 1004 if (*head == elem)
… …
887 1009
888 head = &(*head)->next; 1010 head = &(*head)->next;
889 } 1011 }
890} 1012}
891 1013
892static void 1014inline void
893ev_clear_pending (W w) 1015ev_clear_pending (EV_P_ W w)
894{ 1016{
895 if (w->pending) 1017 if (w->pending)
896 { 1018 {
897 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1019 pendings [ABSPRI (w)][w->pending - 1].w = 0;
898 w->pending = 0; 1020 w->pending = 0;
899 } 1021 }
900} 1022}
901 1023
902static void 1024inline void
903ev_start (W w, int active) 1025ev_start (EV_P_ W w, int active)
904{ 1026{
905 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1027 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
906 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1028 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
907 1029
908 w->active = active; 1030 w->active = active;
1031 ev_ref (EV_A);
909} 1032}
910 1033
911static void 1034inline void
912ev_stop (W w) 1035ev_stop (EV_P_ W w)
913{ 1036{
1037 ev_unref (EV_A);
914 w->active = 0; 1038 w->active = 0;
915} 1039}
916 1040
917/*****************************************************************************/ 1041/*****************************************************************************/
918 1042
919void 1043void
920ev_io_start (struct ev_io *w) 1044ev_io_start (EV_P_ struct ev_io *w)
921{ 1045{
922 int fd = w->fd; 1046 int fd = w->fd;
923 1047
924 if (ev_is_active (w)) 1048 if (ev_is_active (w))
925 return; 1049 return;
926 1050
927 assert (("ev_io_start called with negative fd", fd >= 0)); 1051 assert (("ev_io_start called with negative fd", fd >= 0));
928 1052
929 ev_start ((W)w, 1); 1053 ev_start (EV_A_ (W)w, 1);
930 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1054 array_needsize (anfds, anfdmax, fd + 1, anfds_init);
931 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1055 wlist_add ((WL *)&anfds[fd].head, (WL)w);
932 1056
933 fd_change (fd); 1057 fd_change (EV_A_ fd);
934} 1058}
935 1059
936void 1060void
937ev_io_stop (struct ev_io *w) 1061ev_io_stop (EV_P_ struct ev_io *w)
938{ 1062{
939 ev_clear_pending ((W)w); 1063 ev_clear_pending (EV_A_ (W)w);
940 if (!ev_is_active (w)) 1064 if (!ev_is_active (w))
941 return; 1065 return;
942 1066
943 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1067 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
944 ev_stop ((W)w); 1068 ev_stop (EV_A_ (W)w);
945 1069
946 fd_change (w->fd); 1070 fd_change (EV_A_ w->fd);
947} 1071}
948 1072
949void 1073void
950ev_timer_start (struct ev_timer *w) 1074ev_timer_start (EV_P_ struct ev_timer *w)
951{ 1075{
952 if (ev_is_active (w)) 1076 if (ev_is_active (w))
953 return; 1077 return;
954 1078
955 w->at += now; 1079 w->at += mn_now;
956 1080
957 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1081 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
958 1082
959 ev_start ((W)w, ++timercnt); 1083 ev_start (EV_A_ (W)w, ++timercnt);
960 array_needsize (timers, timermax, timercnt, ); 1084 array_needsize (timers, timermax, timercnt, );
961 timers [timercnt - 1] = w; 1085 timers [timercnt - 1] = w;
962 upheap ((WT *)timers, timercnt - 1); 1086 upheap ((WT *)timers, timercnt - 1);
963} 1087}
964 1088
965void 1089void
966ev_timer_stop (struct ev_timer *w) 1090ev_timer_stop (EV_P_ struct ev_timer *w)
967{ 1091{
968 ev_clear_pending ((W)w); 1092 ev_clear_pending (EV_A_ (W)w);
969 if (!ev_is_active (w)) 1093 if (!ev_is_active (w))
970 return; 1094 return;
971 1095
972 if (w->active < timercnt--) 1096 if (w->active < timercnt--)
973 { 1097 {
… …
975 downheap ((WT *)timers, timercnt, w->active - 1); 1099 downheap ((WT *)timers, timercnt, w->active - 1);
976 } 1100 }
977 1101
978 w->at = w->repeat; 1102 w->at = w->repeat;
979 1103
980 ev_stop ((W)w); 1104 ev_stop (EV_A_ (W)w);
981} 1105}
982 1106
983void 1107void
984ev_timer_again (struct ev_timer *w) 1108ev_timer_again (EV_P_ struct ev_timer *w)
985{ 1109{
986 if (ev_is_active (w)) 1110 if (ev_is_active (w))
987 { 1111 {
988 if (w->repeat) 1112 if (w->repeat)
989 { 1113 {
990 w->at = now + w->repeat; 1114 w->at = mn_now + w->repeat;
991 downheap ((WT *)timers, timercnt, w->active - 1); 1115 downheap ((WT *)timers, timercnt, w->active - 1);
992 } 1116 }
993 else 1117 else
994 ev_timer_stop (w); 1118 ev_timer_stop (EV_A_ w);
995 } 1119 }
996 else if (w->repeat) 1120 else if (w->repeat)
997 ev_timer_start (w); 1121 ev_timer_start (EV_A_ w);
998} 1122}
999 1123
1000void 1124void
1001ev_periodic_start (struct ev_periodic *w) 1125ev_periodic_start (EV_P_ struct ev_periodic *w)
1002{ 1126{
1003 if (ev_is_active (w)) 1127 if (ev_is_active (w))
1004 return; 1128 return;
1005 1129
1006 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1130 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1007 1131
1008 /* this formula differs from the one in periodic_reify because we do not always round up */ 1132 /* this formula differs from the one in periodic_reify because we do not always round up */
1009 if (w->interval) 1133 if (w->interval)
1010 w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; 1134 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
1011 1135
1012 ev_start ((W)w, ++periodiccnt); 1136 ev_start (EV_A_ (W)w, ++periodiccnt);
1013 array_needsize (periodics, periodicmax, periodiccnt, ); 1137 array_needsize (periodics, periodicmax, periodiccnt, );
1014 periodics [periodiccnt - 1] = w; 1138 periodics [periodiccnt - 1] = w;
1015 upheap ((WT *)periodics, periodiccnt - 1); 1139 upheap ((WT *)periodics, periodiccnt - 1);
1016} 1140}
1017 1141
1018void 1142void
1019ev_periodic_stop (struct ev_periodic *w) 1143ev_periodic_stop (EV_P_ struct ev_periodic *w)
1020{ 1144{
1021 ev_clear_pending ((W)w); 1145 ev_clear_pending (EV_A_ (W)w);
1022 if (!ev_is_active (w)) 1146 if (!ev_is_active (w))
1023 return; 1147 return;
1024 1148
1025 if (w->active < periodiccnt--) 1149 if (w->active < periodiccnt--)
1026 { 1150 {
1027 periodics [w->active - 1] = periodics [periodiccnt]; 1151 periodics [w->active - 1] = periodics [periodiccnt];
1028 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1152 downheap ((WT *)periodics, periodiccnt, w->active - 1);
1029 } 1153 }
1030 1154
1031 ev_stop ((W)w); 1155 ev_stop (EV_A_ (W)w);
1156}
1157
1158void
1159ev_idle_start (EV_P_ struct ev_idle *w)
1160{
1161 if (ev_is_active (w))
1162 return;
1163
1164 ev_start (EV_A_ (W)w, ++idlecnt);
1165 array_needsize (idles, idlemax, idlecnt, );
1166 idles [idlecnt - 1] = w;
1167}
1168
1169void
1170ev_idle_stop (EV_P_ struct ev_idle *w)
1171{
1172 ev_clear_pending (EV_A_ (W)w);
1173 if (ev_is_active (w))
1174 return;
1175
1176 idles [w->active - 1] = idles [--idlecnt];
1177 ev_stop (EV_A_ (W)w);
1178}
1179
1180void
1181ev_prepare_start (EV_P_ struct ev_prepare *w)
1182{
1183 if (ev_is_active (w))
1184 return;
1185
1186 ev_start (EV_A_ (W)w, ++preparecnt);
1187 array_needsize (prepares, preparemax, preparecnt, );
1188 prepares [preparecnt - 1] = w;
1189}
1190
1191void
1192ev_prepare_stop (EV_P_ struct ev_prepare *w)
1193{
1194 ev_clear_pending (EV_A_ (W)w);
1195 if (ev_is_active (w))
1196 return;
1197
1198 prepares [w->active - 1] = prepares [--preparecnt];
1199 ev_stop (EV_A_ (W)w);
1200}
1201
1202void
1203ev_check_start (EV_P_ struct ev_check *w)
1204{
1205 if (ev_is_active (w))
1206 return;
1207
1208 ev_start (EV_A_ (W)w, ++checkcnt);
1209 array_needsize (checks, checkmax, checkcnt, );
1210 checks [checkcnt - 1] = w;
1211}
1212
1213void
1214ev_check_stop (EV_P_ struct ev_check *w)
1215{
1216 ev_clear_pending (EV_A_ (W)w);
1217 if (ev_is_active (w))
1218 return;
1219
1220 checks [w->active - 1] = checks [--checkcnt];
1221 ev_stop (EV_A_ (W)w);
1032} 1222}
1033 1223
1034#ifndef SA_RESTART 1224#ifndef SA_RESTART
1035# define SA_RESTART 0 1225# define SA_RESTART 0
1036#endif 1226#endif
1037 1227
1038void 1228void
1039ev_signal_start (struct ev_signal *w) 1229ev_signal_start (EV_P_ struct ev_signal *w)
1040{ 1230{
1231#if EV_MULTIPLICITY
1232 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1233#endif
1041 if (ev_is_active (w)) 1234 if (ev_is_active (w))
1042 return; 1235 return;
1043 1236
1044 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1237 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1045 1238
1046 ev_start ((W)w, 1); 1239 ev_start (EV_A_ (W)w, 1);
1047 array_needsize (signals, signalmax, w->signum, signals_init); 1240 array_needsize (signals, signalmax, w->signum, signals_init);
1048 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1241 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1049 1242
1050 if (!w->next) 1243 if (!w->next)
1051 { 1244 {
… …
1056 sigaction (w->signum, &sa, 0); 1249 sigaction (w->signum, &sa, 0);
1057 } 1250 }
1058} 1251}
1059 1252
1060void 1253void
1061ev_signal_stop (struct ev_signal *w) 1254ev_signal_stop (EV_P_ struct ev_signal *w)
1062{ 1255{
1063 ev_clear_pending ((W)w); 1256 ev_clear_pending (EV_A_ (W)w);
1064 if (!ev_is_active (w)) 1257 if (!ev_is_active (w))
1065 return; 1258 return;
1066 1259
1067 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1260 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1068 ev_stop ((W)w); 1261 ev_stop (EV_A_ (W)w);
1069 1262
1070 if (!signals [w->signum - 1].head) 1263 if (!signals [w->signum - 1].head)
1071 signal (w->signum, SIG_DFL); 1264 signal (w->signum, SIG_DFL);
1072} 1265}
1073 1266
1074void 1267void
1075ev_idle_start (struct ev_idle *w) 1268ev_child_start (EV_P_ struct ev_child *w)
1076{ 1269{
1270#if EV_MULTIPLICITY
1271 assert (("child watchers are only supported in the default loop", loop == default_loop));
1272#endif
1077 if (ev_is_active (w)) 1273 if (ev_is_active (w))
1078 return; 1274 return;
1079 1275
1080 ev_start ((W)w, ++idlecnt); 1276 ev_start (EV_A_ (W)w, 1);
1081 array_needsize (idles, idlemax, idlecnt, ); 1277 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1082 idles [idlecnt - 1] = w;
1083} 1278}
1084 1279
1085void 1280void
1086ev_idle_stop (struct ev_idle *w) 1281ev_child_stop (EV_P_ struct ev_child *w)
1087{ 1282{
1088 ev_clear_pending ((W)w); 1283 ev_clear_pending (EV_A_ (W)w);
1089 if (ev_is_active (w)) 1284 if (ev_is_active (w))
1090 return; 1285 return;
1091 1286
1092 idles [w->active - 1] = idles [--idlecnt];
1093 ev_stop ((W)w);
1094}
1095
1096void
1097ev_prepare_start (struct ev_prepare *w)
1098{
1099 if (ev_is_active (w))
1100 return;
1101
1102 ev_start ((W)w, ++preparecnt);
1103 array_needsize (prepares, preparemax, preparecnt, );
1104 prepares [preparecnt - 1] = w;
1105}
1106
1107void
1108ev_prepare_stop (struct ev_prepare *w)
1109{
1110 ev_clear_pending ((W)w);
1111 if (ev_is_active (w))
1112 return;
1113
1114 prepares [w->active - 1] = prepares [--preparecnt];
1115 ev_stop ((W)w);
1116}
1117
1118void
1119ev_check_start (struct ev_check *w)
1120{
1121 if (ev_is_active (w))
1122 return;
1123
1124 ev_start ((W)w, ++checkcnt);
1125 array_needsize (checks, checkmax, checkcnt, );
1126 checks [checkcnt - 1] = w;
1127}
1128
1129void
1130ev_check_stop (struct ev_check *w)
1131{
1132 ev_clear_pending ((W)w);
1133 if (ev_is_active (w))
1134 return;
1135
1136 checks [w->active - 1] = checks [--checkcnt];
1137 ev_stop ((W)w);
1138}
1139
1140void
1141ev_child_start (struct ev_child *w)
1142{
1143 if (ev_is_active (w))
1144 return;
1145
1146 ev_start ((W)w, 1);
1147 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1148}
1149
1150void
1151ev_child_stop (struct ev_child *w)
1152{
1153 ev_clear_pending ((W)w);
1154 if (ev_is_active (w))
1155 return;
1156
1157 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1287 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1158 ev_stop ((W)w); 1288 ev_stop (EV_A_ (W)w);
1159} 1289}
1160 1290
1161/*****************************************************************************/ 1291/*****************************************************************************/
1162 1292
1163struct ev_once 1293struct ev_once
… …
1167 void (*cb)(int revents, void *arg); 1297 void (*cb)(int revents, void *arg);
1168 void *arg; 1298 void *arg;
1169}; 1299};
1170 1300
1171static void 1301static void
1172once_cb (struct ev_once *once, int revents) 1302once_cb (EV_P_ struct ev_once *once, int revents)
1173{ 1303{
1174 void (*cb)(int revents, void *arg) = once->cb; 1304 void (*cb)(int revents, void *arg) = once->cb;
1175 void *arg = once->arg; 1305 void *arg = once->arg;
1176 1306
1177 ev_io_stop (&once->io); 1307 ev_io_stop (EV_A_ &once->io);
1178 ev_timer_stop (&once->to); 1308 ev_timer_stop (EV_A_ &once->to);
1179 free (once); 1309 free (once);
1180 1310
1181 cb (revents, arg); 1311 cb (revents, arg);
1182} 1312}
1183 1313
1184static void 1314static void
1185once_cb_io (struct ev_io *w, int revents) 1315once_cb_io (EV_P_ struct ev_io *w, int revents)
1186{ 1316{
1187 once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 1317 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1188} 1318}
1189 1319
1190static void 1320static void
1191once_cb_to (struct ev_timer *w, int revents) 1321once_cb_to (EV_P_ struct ev_timer *w, int revents)
1192{ 1322{
1193 once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 1323 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1194} 1324}
1195 1325
1196void 1326void
1197ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1327ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1198{ 1328{
1199 struct ev_once *once = malloc (sizeof (struct ev_once)); 1329 struct ev_once *once = malloc (sizeof (struct ev_once));
1200 1330
1201 if (!once) 1331 if (!once)
1202 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1332 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
… …
1207 1337
1208 ev_watcher_init (&once->io, once_cb_io); 1338 ev_watcher_init (&once->io, once_cb_io);
1209 if (fd >= 0) 1339 if (fd >= 0)
1210 { 1340 {
1211 ev_io_set (&once->io, fd, events); 1341 ev_io_set (&once->io, fd, events);
1212 ev_io_start (&once->io); 1342 ev_io_start (EV_A_ &once->io);
1213 } 1343 }
1214 1344
1215 ev_watcher_init (&once->to, once_cb_to); 1345 ev_watcher_init (&once->to, once_cb_to);
1216 if (timeout >= 0.) 1346 if (timeout >= 0.)
1217 { 1347 {
1218 ev_timer_set (&once->to, timeout, 0.); 1348 ev_timer_set (&once->to, timeout, 0.);
1219 ev_timer_start (&once->to); 1349 ev_timer_start (EV_A_ &once->to);
1220 } 1350 }
1221 } 1351 }
1222} 1352}
1223 1353
1224/*****************************************************************************/
1225
1226#if 0
1227
1228struct ev_io wio;
1229
1230static void
1231sin_cb (struct ev_io *w, int revents)
1232{
1233 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1234}
1235
1236static void
1237ocb (struct ev_timer *w, int revents)
1238{
1239 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1240 ev_timer_stop (w);
1241 ev_timer_start (w);
1242}
1243
1244static void
1245scb (struct ev_signal *w, int revents)
1246{
1247 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1248 ev_io_stop (&wio);
1249 ev_io_start (&wio);
1250}
1251
1252static void
1253gcb (struct ev_signal *w, int revents)
1254{
1255 fprintf (stderr, "generic %x\n", revents);
1256
1257}
1258
1259int main (void)
1260{
1261 ev_init (0);
1262
1263 ev_io_init (&wio, sin_cb, 0, EV_READ);
1264 ev_io_start (&wio);
1265
1266 struct ev_timer t[10000];
1267
1268#if 0
1269 int i;
1270 for (i = 0; i < 10000; ++i)
1271 {
1272 struct ev_timer *w = t + i;
1273 ev_watcher_init (w, ocb, i);
1274 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1275 ev_timer_start (w);
1276 if (drand48 () < 0.5)
1277 ev_timer_stop (w);
1278 }
1279#endif
1280
1281 struct ev_timer t1;
1282 ev_timer_init (&t1, ocb, 5, 10);
1283 ev_timer_start (&t1);
1284
1285 struct ev_signal sig;
1286 ev_signal_init (&sig, scb, SIGQUIT);
1287 ev_signal_start (&sig);
1288
1289 struct ev_check cw;
1290 ev_check_init (&cw, gcb);
1291 ev_check_start (&cw);
1292
1293 struct ev_idle iw;
1294 ev_idle_init (&iw, gcb);
1295 ev_idle_start (&iw);
1296
1297 ev_loop (0);
1298
1299 return 0;
1300}
1301
1302#endif
1303
1304
1305
1306

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