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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 1.60 by root, Sun Nov 4 18:29:44 2007 UTC

… …
28 * (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
29 * 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.
30 */ 30 */
31#ifndef EV_STANDALONE 31#ifndef EV_STANDALONE
32# include "config.h" 32# include "config.h"
33
34# if HAVE_CLOCK_GETTIME
35# define EV_USE_MONOTONIC 1
36# define EV_USE_REALTIME 1
37# endif
38
39# if HAVE_SELECT && HAVE_SYS_SELECT_H
40# define EV_USE_SELECT 1
41# endif
42
43# if HAVE_POLL && HAVE_POLL_H
44# define EV_USE_POLL 1
45# endif
46
47# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48# define EV_USE_EPOLL 1
49# endif
50
51# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52# define EV_USE_KQUEUE 1
53# endif
54
33#endif 55#endif
34 56
35#include <math.h> 57#include <math.h>
36#include <stdlib.h> 58#include <stdlib.h>
37#include <unistd.h> 59#include <unistd.h>
… …
113 135
114typedef struct ev_watcher *W; 136typedef struct ev_watcher *W;
115typedef struct ev_watcher_list *WL; 137typedef struct ev_watcher_list *WL;
116typedef struct ev_watcher_time *WT; 138typedef struct ev_watcher_time *WT;
117 139
118static ev_tstamp now_floor, now, diff; /* monotonic clock */ 140static 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);
127 141
128/*****************************************************************************/ 142/*****************************************************************************/
129 143
130ev_tstamp 144typedef struct
145{
146 struct ev_watcher_list *head;
147 unsigned char events;
148 unsigned char reify;
149} ANFD;
150
151typedef struct
152{
153 W w;
154 int events;
155} ANPENDING;
156
157#if EV_MULTIPLICITY
158
159struct ev_loop
160{
161# define VAR(name,decl) decl;
162# include "ev_vars.h"
163};
164# undef VAR
165# include "ev_wrap.h"
166
167#else
168
169# define VAR(name,decl) static decl;
170# include "ev_vars.h"
171# undef VAR
172
173#endif
174
175/*****************************************************************************/
176
177inline ev_tstamp
131ev_time (void) 178ev_time (void)
132{ 179{
133#if EV_USE_REALTIME 180#if EV_USE_REALTIME
134 struct timespec ts; 181 struct timespec ts;
135 clock_gettime (CLOCK_REALTIME, &ts); 182 clock_gettime (CLOCK_REALTIME, &ts);
… …
139 gettimeofday (&tv, 0); 186 gettimeofday (&tv, 0);
140 return tv.tv_sec + tv.tv_usec * 1e-6; 187 return tv.tv_sec + tv.tv_usec * 1e-6;
141#endif 188#endif
142} 189}
143 190
144static ev_tstamp 191inline ev_tstamp
145get_clock (void) 192get_clock (void)
146{ 193{
147#if EV_USE_MONOTONIC 194#if EV_USE_MONOTONIC
148 if (expect_true (have_monotonic)) 195 if (expect_true (have_monotonic))
149 { 196 {
… …
152 return ts.tv_sec + ts.tv_nsec * 1e-9; 199 return ts.tv_sec + ts.tv_nsec * 1e-9;
153 } 200 }
154#endif 201#endif
155 202
156 return ev_time (); 203 return ev_time ();
204}
205
206ev_tstamp
207ev_now (EV_P)
208{
209 return rt_now;
157} 210}
158 211
159#define array_roundsize(base,n) ((n) | 4 & ~3) 212#define array_roundsize(base,n) ((n) | 4 & ~3)
160 213
161#define array_needsize(base,cur,cnt,init) \ 214#define array_needsize(base,cur,cnt,init) \
… …
173 cur = newcnt; \ 226 cur = newcnt; \
174 } 227 }
175 228
176/*****************************************************************************/ 229/*****************************************************************************/
177 230
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 231static void
189anfds_init (ANFD *base, int count) 232anfds_init (ANFD *base, int count)
190{ 233{
191 while (count--) 234 while (count--)
192 { 235 {
… …
196 239
197 ++base; 240 ++base;
198 } 241 }
199} 242}
200 243
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 244static void
211event (W w, int events) 245event (EV_P_ W w, int events)
212{ 246{
213 if (w->pending) 247 if (w->pending)
214 { 248 {
215 pendings [ABSPRI (w)][w->pending - 1].events |= events; 249 pendings [ABSPRI (w)][w->pending - 1].events |= events;
216 return; 250 return;
… …
221 pendings [ABSPRI (w)][w->pending - 1].w = w; 255 pendings [ABSPRI (w)][w->pending - 1].w = w;
222 pendings [ABSPRI (w)][w->pending - 1].events = events; 256 pendings [ABSPRI (w)][w->pending - 1].events = events;
223} 257}
224 258
225static void 259static void
226queue_events (W *events, int eventcnt, int type) 260queue_events (EV_P_ W *events, int eventcnt, int type)
227{ 261{
228 int i; 262 int i;
229 263
230 for (i = 0; i < eventcnt; ++i) 264 for (i = 0; i < eventcnt; ++i)
231 event (events [i], type); 265 event (EV_A_ events [i], type);
232} 266}
233 267
234static void 268static void
235fd_event (int fd, int events) 269fd_event (EV_P_ int fd, int events)
236{ 270{
237 ANFD *anfd = anfds + fd; 271 ANFD *anfd = anfds + fd;
238 struct ev_io *w; 272 struct ev_io *w;
239 273
240 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 274 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
241 { 275 {
242 int ev = w->events & events; 276 int ev = w->events & events;
243 277
244 if (ev) 278 if (ev)
245 event ((W)w, ev); 279 event (EV_A_ (W)w, ev);
246 } 280 }
247} 281}
248 282
249/*****************************************************************************/ 283/*****************************************************************************/
250 284
251static int *fdchanges;
252static int fdchangemax, fdchangecnt;
253
254static void 285static void
255fd_reify (void) 286fd_reify (EV_P)
256{ 287{
257 int i; 288 int i;
258 289
259 for (i = 0; i < fdchangecnt; ++i) 290 for (i = 0; i < fdchangecnt; ++i)
260 { 291 {
… …
269 300
270 anfd->reify = 0; 301 anfd->reify = 0;
271 302
272 if (anfd->events != events) 303 if (anfd->events != events)
273 { 304 {
274 method_modify (fd, anfd->events, events); 305 method_modify (EV_A_ fd, anfd->events, events);
275 anfd->events = events; 306 anfd->events = events;
276 } 307 }
277 } 308 }
278 309
279 fdchangecnt = 0; 310 fdchangecnt = 0;
280} 311}
281 312
282static void 313static void
283fd_change (int fd) 314fd_change (EV_P_ int fd)
284{ 315{
285 if (anfds [fd].reify || fdchangecnt < 0) 316 if (anfds [fd].reify || fdchangecnt < 0)
286 return; 317 return;
287 318
288 anfds [fd].reify = 1; 319 anfds [fd].reify = 1;
… …
291 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 322 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
292 fdchanges [fdchangecnt - 1] = fd; 323 fdchanges [fdchangecnt - 1] = fd;
293} 324}
294 325
295static void 326static void
296fd_kill (int fd) 327fd_kill (EV_P_ int fd)
297{ 328{
298 struct ev_io *w; 329 struct ev_io *w;
299 330
300 while ((w = (struct ev_io *)anfds [fd].head)) 331 while ((w = (struct ev_io *)anfds [fd].head))
301 { 332 {
302 ev_io_stop (w); 333 ev_io_stop (EV_A_ w);
303 event ((W)w, EV_ERROR | EV_READ | EV_WRITE); 334 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
304 } 335 }
305} 336}
306 337
307/* called on EBADF to verify fds */ 338/* called on EBADF to verify fds */
308static void 339static void
309fd_ebadf (void) 340fd_ebadf (EV_P)
310{ 341{
311 int fd; 342 int fd;
312 343
313 for (fd = 0; fd < anfdmax; ++fd) 344 for (fd = 0; fd < anfdmax; ++fd)
314 if (anfds [fd].events) 345 if (anfds [fd].events)
315 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 346 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
316 fd_kill (fd); 347 fd_kill (EV_A_ fd);
317} 348}
318 349
319/* called on ENOMEM in select/poll to kill some fds and retry */ 350/* called on ENOMEM in select/poll to kill some fds and retry */
320static void 351static void
321fd_enomem (void) 352fd_enomem (EV_P)
322{ 353{
323 int fd = anfdmax; 354 int fd = anfdmax;
324 355
325 while (fd--) 356 while (fd--)
326 if (anfds [fd].events) 357 if (anfds [fd].events)
327 { 358 {
328 close (fd); 359 close (fd);
329 fd_kill (fd); 360 fd_kill (EV_A_ fd);
330 return; 361 return;
331 } 362 }
332} 363}
333 364
365/* susually called after fork if method needs to re-arm all fds from scratch */
366static void
367fd_rearm_all (EV_P)
368{
369 int fd;
370
371 /* this should be highly optimised to not do anything but set a flag */
372 for (fd = 0; fd < anfdmax; ++fd)
373 if (anfds [fd].events)
374 {
375 anfds [fd].events = 0;
376 fd_change (EV_A_ fd);
377 }
378}
379
334/*****************************************************************************/ 380/*****************************************************************************/
335 381
336static struct ev_timer **timers;
337static int timermax, timercnt;
338
339static struct ev_periodic **periodics;
340static int periodicmax, periodiccnt;
341
342static void 382static void
343upheap (WT *timers, int k) 383upheap (WT *heap, int k)
344{ 384{
345 WT w = timers [k]; 385 WT w = heap [k];
346 386
347 while (k && timers [k >> 1]->at > w->at) 387 while (k && heap [k >> 1]->at > w->at)
348 { 388 {
349 timers [k] = timers [k >> 1]; 389 heap [k] = heap [k >> 1];
350 timers [k]->active = k + 1; 390 heap [k]->active = k + 1;
351 k >>= 1; 391 k >>= 1;
352 } 392 }
353 393
354 timers [k] = w; 394 heap [k] = w;
355 timers [k]->active = k + 1; 395 heap [k]->active = k + 1;
356 396
357} 397}
358 398
359static void 399static void
360downheap (WT *timers, int N, int k) 400downheap (WT *heap, int N, int k)
361{ 401{
362 WT w = timers [k]; 402 WT w = heap [k];
363 403
364 while (k < (N >> 1)) 404 while (k < (N >> 1))
365 { 405 {
366 int j = k << 1; 406 int j = k << 1;
367 407
368 if (j + 1 < N && timers [j]->at > timers [j + 1]->at) 408 if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
369 ++j; 409 ++j;
370 410
371 if (w->at <= timers [j]->at) 411 if (w->at <= heap [j]->at)
372 break; 412 break;
373 413
374 timers [k] = timers [j]; 414 heap [k] = heap [j];
375 timers [k]->active = k + 1; 415 heap [k]->active = k + 1;
376 k = j; 416 k = j;
377 } 417 }
378 418
379 timers [k] = w; 419 heap [k] = w;
380 timers [k]->active = k + 1; 420 heap [k]->active = k + 1;
381} 421}
382 422
383/*****************************************************************************/ 423/*****************************************************************************/
384 424
385typedef struct 425typedef struct
… …
420 errno = old_errno; 460 errno = old_errno;
421 } 461 }
422} 462}
423 463
424static void 464static void
425sigcb (struct ev_io *iow, int revents) 465sigcb (EV_P_ struct ev_io *iow, int revents)
426{ 466{
427 struct ev_watcher_list *w; 467 struct ev_watcher_list *w;
428 int signum; 468 int signum;
429 469
430 read (sigpipe [0], &revents, 1); 470 read (sigpipe [0], &revents, 1);
… …
434 if (signals [signum].gotsig) 474 if (signals [signum].gotsig)
435 { 475 {
436 signals [signum].gotsig = 0; 476 signals [signum].gotsig = 0;
437 477
438 for (w = signals [signum].head; w; w = w->next) 478 for (w = signals [signum].head; w; w = w->next)
439 event ((W)w, EV_SIGNAL); 479 event (EV_A_ (W)w, EV_SIGNAL);
440 } 480 }
441} 481}
442 482
443static void 483static void
444siginit (void) 484siginit (EV_P)
445{ 485{
446#ifndef WIN32 486#ifndef WIN32
447 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 487 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
448 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); 488 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
449 489
… …
451 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 491 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
452 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 492 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
453#endif 493#endif
454 494
455 ev_io_set (&sigev, sigpipe [0], EV_READ); 495 ev_io_set (&sigev, sigpipe [0], EV_READ);
456 ev_io_start (&sigev); 496 ev_io_start (EV_A_ &sigev);
497 ev_unref (EV_A); /* child watcher should not keep loop alive */
457} 498}
458 499
459/*****************************************************************************/ 500/*****************************************************************************/
460 501
461static struct ev_idle **idles; 502#ifndef WIN32
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/*****************************************************************************/
471 503
472static struct ev_child *childs [PID_HASHSIZE]; 504static struct ev_child *childs [PID_HASHSIZE];
473static struct ev_signal childev; 505static struct ev_signal childev;
474 506
475#ifndef WIN32
476
477#ifndef WCONTINUED 507#ifndef WCONTINUED
478# define WCONTINUED 0 508# define WCONTINUED 0
479#endif 509#endif
480 510
481static void 511static void
482child_reap (struct ev_signal *sw, int chain, int pid, int status) 512child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
483{ 513{
484 struct ev_child *w; 514 struct ev_child *w;
485 515
486 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 516 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) 517 if (w->pid == pid || !w->pid)
488 { 518 {
489 w->priority = sw->priority; /* need to do it *now* */ 519 w->priority = sw->priority; /* need to do it *now* */
490 w->rpid = pid; 520 w->rpid = pid;
491 w->rstatus = status; 521 w->rstatus = status;
492 event ((W)w, EV_CHILD); 522 event (EV_A_ (W)w, EV_CHILD);
493 } 523 }
494} 524}
495 525
496static void 526static void
497childcb (struct ev_signal *sw, int revents) 527childcb (EV_P_ struct ev_signal *sw, int revents)
498{ 528{
499 int pid, status; 529 int pid, status;
500 530
501 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 531 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
502 { 532 {
503 /* make sure we are called again until all childs have been reaped */ 533 /* make sure we are called again until all childs have been reaped */
504 event ((W)sw, EV_SIGNAL); 534 event (EV_A_ (W)sw, EV_SIGNAL);
505 535
506 child_reap (sw, pid, pid, status); 536 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 */ 537 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
508 } 538 }
509} 539}
510 540
511#endif 541#endif
512 542
… …
537 return EV_VERSION_MINOR; 567 return EV_VERSION_MINOR;
538} 568}
539 569
540/* return true if we are running with elevated privileges and should ignore env variables */ 570/* return true if we are running with elevated privileges and should ignore env variables */
541static int 571static int
542enable_secure () 572enable_secure (void)
543{ 573{
544#ifdef WIN32 574#ifdef WIN32
545 return 0; 575 return 0;
546#else 576#else
547 return getuid () != geteuid () 577 return getuid () != geteuid ()
548 || getgid () != getegid (); 578 || getgid () != getegid ();
549#endif 579#endif
550} 580}
551 581
552int ev_init (int methods) 582int
583ev_method (EV_P)
553{ 584{
585 return method;
586}
587
588static void
589loop_init (EV_P_ int methods)
590{
554 if (!ev_method) 591 if (!method)
555 { 592 {
556#if EV_USE_MONOTONIC 593#if EV_USE_MONOTONIC
557 { 594 {
558 struct timespec ts; 595 struct timespec ts;
559 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 596 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
560 have_monotonic = 1; 597 have_monotonic = 1;
561 } 598 }
562#endif 599#endif
563 600
564 ev_now = ev_time (); 601 rt_now = ev_time ();
565 now = get_clock (); 602 mn_now = get_clock ();
566 now_floor = now; 603 now_floor = mn_now;
567 diff = ev_now - now; 604 rtmn_diff = rt_now - mn_now;
568
569 if (pipe (sigpipe))
570 return 0;
571 605
572 if (methods == EVMETHOD_AUTO) 606 if (methods == EVMETHOD_AUTO)
573 if (!enable_secure () && getenv ("LIBEV_METHODS")) 607 if (!enable_secure () && getenv ("LIBEV_METHODS"))
574 methods = atoi (getenv ("LIBEV_METHODS")); 608 methods = atoi (getenv ("LIBEV_METHODS"));
575 else 609 else
576 methods = EVMETHOD_ANY; 610 methods = EVMETHOD_ANY;
577 611
578 ev_method = 0; 612 method = 0;
579#if EV_USE_KQUEUE 613#if EV_USE_KQUEUE
580 if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); 614 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
581#endif 615#endif
582#if EV_USE_EPOLL 616#if EV_USE_EPOLL
583 if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); 617 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
584#endif 618#endif
585#if EV_USE_POLL 619#if EV_USE_POLL
586 if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); 620 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
587#endif 621#endif
588#if EV_USE_SELECT 622#if EV_USE_SELECT
589 if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); 623 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
590#endif 624#endif
625 }
626}
591 627
628void
629loop_destroy (EV_P)
630{
631#if EV_USE_KQUEUE
632 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633#endif
634#if EV_USE_EPOLL
635 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
636#endif
637#if EV_USE_POLL
638 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
639#endif
640#if EV_USE_SELECT
641 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642#endif
643
644 method = 0;
645 /*TODO*/
646}
647
648void
649loop_fork (EV_P)
650{
651 /*TODO*/
652#if EV_USE_EPOLL
653 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654#endif
655#if EV_USE_KQUEUE
656 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
657#endif
658}
659
660#if EV_MULTIPLICITY
661struct ev_loop *
662ev_loop_new (int methods)
663{
664 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
665
666 loop_init (EV_A_ methods);
667
668 if (ev_method (EV_A))
669 return loop;
670
671 return 0;
672}
673
674void
675ev_loop_destroy (EV_P)
676{
677 loop_destroy (EV_A);
678 free (loop);
679}
680
681void
682ev_loop_fork (EV_P)
683{
684 loop_fork (EV_A);
685}
686
687#endif
688
689#if EV_MULTIPLICITY
690struct ev_loop default_loop_struct;
691static struct ev_loop *default_loop;
692
693struct ev_loop *
694#else
695static int default_loop;
696
697int
698#endif
699ev_default_loop (int methods)
700{
701 if (sigpipe [0] == sigpipe [1])
702 if (pipe (sigpipe))
703 return 0;
704
705 if (!default_loop)
706 {
707#if EV_MULTIPLICITY
708 struct ev_loop *loop = default_loop = &default_loop_struct;
709#else
710 default_loop = 1;
711#endif
712
713 loop_init (EV_A_ methods);
714
592 if (ev_method) 715 if (ev_method (EV_A))
593 { 716 {
594 ev_watcher_init (&sigev, sigcb); 717 ev_watcher_init (&sigev, sigcb);
595 ev_set_priority (&sigev, EV_MAXPRI); 718 ev_set_priority (&sigev, EV_MAXPRI);
596 siginit (); 719 siginit (EV_A);
597 720
598#ifndef WIN32 721#ifndef WIN32
599 ev_signal_init (&childev, childcb, SIGCHLD); 722 ev_signal_init (&childev, childcb, SIGCHLD);
600 ev_set_priority (&childev, EV_MAXPRI); 723 ev_set_priority (&childev, EV_MAXPRI);
601 ev_signal_start (&childev); 724 ev_signal_start (EV_A_ &childev);
725 ev_unref (EV_A); /* child watcher should not keep loop alive */
602#endif 726#endif
603 } 727 }
728 else
729 default_loop = 0;
604 } 730 }
605 731
606 return ev_method; 732 return default_loop;
607} 733}
608 734
609/*****************************************************************************/
610
611void 735void
612ev_fork_prepare (void) 736ev_default_destroy (void)
613{ 737{
614 /* nop */ 738#if EV_MULTIPLICITY
615} 739 struct ev_loop *loop = default_loop;
616
617void
618ev_fork_parent (void)
619{
620 /* nop */
621}
622
623void
624ev_fork_child (void)
625{
626#if EV_USE_EPOLL
627 if (ev_method == EVMETHOD_EPOLL)
628 epoll_postfork_child ();
629#endif 740#endif
630 741
742 ev_ref (EV_A); /* child watcher */
743 ev_signal_stop (EV_A_ &childev);
744
745 ev_ref (EV_A); /* signal watcher */
631 ev_io_stop (&sigev); 746 ev_io_stop (EV_A_ &sigev);
747
748 close (sigpipe [0]); sigpipe [0] = 0;
749 close (sigpipe [1]); sigpipe [1] = 0;
750
751 loop_destroy (EV_A);
752}
753
754void
755ev_default_fork (void)
756{
757#if EV_MULTIPLICITY
758 struct ev_loop *loop = default_loop;
759#endif
760
761 loop_fork (EV_A);
762
763 ev_io_stop (EV_A_ &sigev);
632 close (sigpipe [0]); 764 close (sigpipe [0]);
633 close (sigpipe [1]); 765 close (sigpipe [1]);
634 pipe (sigpipe); 766 pipe (sigpipe);
767
768 ev_ref (EV_A); /* signal watcher */
635 siginit (); 769 siginit (EV_A);
636} 770}
637 771
638/*****************************************************************************/ 772/*****************************************************************************/
639 773
640static void 774static void
641call_pending (void) 775call_pending (EV_P)
642{ 776{
643 int pri; 777 int pri;
644 778
645 for (pri = NUMPRI; pri--; ) 779 for (pri = NUMPRI; pri--; )
646 while (pendingcnt [pri]) 780 while (pendingcnt [pri])
… …
648 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 782 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
649 783
650 if (p->w) 784 if (p->w)
651 { 785 {
652 p->w->pending = 0; 786 p->w->pending = 0;
653 p->w->cb (p->w, p->events); 787 p->w->cb (EV_A_ p->w, p->events);
654 } 788 }
655 } 789 }
656} 790}
657 791
658static void 792static void
659timers_reify (void) 793timers_reify (EV_P)
660{ 794{
661 while (timercnt && timers [0]->at <= now) 795 while (timercnt && timers [0]->at <= mn_now)
662 { 796 {
663 struct ev_timer *w = timers [0]; 797 struct ev_timer *w = timers [0];
664 798
665 /* first reschedule or stop timer */ 799 /* first reschedule or stop timer */
666 if (w->repeat) 800 if (w->repeat)
667 { 801 {
668 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 802 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
669 w->at = now + w->repeat; 803 w->at = mn_now + w->repeat;
670 downheap ((WT *)timers, timercnt, 0); 804 downheap ((WT *)timers, timercnt, 0);
671 } 805 }
672 else 806 else
673 ev_timer_stop (w); /* nonrepeating: stop timer */ 807 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
674 808
675 event ((W)w, EV_TIMEOUT); 809 event (EV_A_ (W)w, EV_TIMEOUT);
676 } 810 }
677} 811}
678 812
679static void 813static void
680periodics_reify (void) 814periodics_reify (EV_P)
681{ 815{
682 while (periodiccnt && periodics [0]->at <= ev_now) 816 while (periodiccnt && periodics [0]->at <= rt_now)
683 { 817 {
684 struct ev_periodic *w = periodics [0]; 818 struct ev_periodic *w = periodics [0];
685 819
686 /* first reschedule or stop timer */ 820 /* first reschedule or stop timer */
687 if (w->interval) 821 if (w->interval)
688 { 822 {
689 w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; 823 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)); 824 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
691 downheap ((WT *)periodics, periodiccnt, 0); 825 downheap ((WT *)periodics, periodiccnt, 0);
692 } 826 }
693 else 827 else
694 ev_periodic_stop (w); /* nonrepeating: stop timer */ 828 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
695 829
696 event ((W)w, EV_PERIODIC); 830 event (EV_A_ (W)w, EV_PERIODIC);
697 } 831 }
698} 832}
699 833
700static void 834static void
701periodics_reschedule (ev_tstamp diff) 835periodics_reschedule (EV_P)
702{ 836{
703 int i; 837 int i;
704 838
705 /* adjust periodics after time jump */ 839 /* adjust periodics after time jump */
706 for (i = 0; i < periodiccnt; ++i) 840 for (i = 0; i < periodiccnt; ++i)
707 { 841 {
708 struct ev_periodic *w = periodics [i]; 842 struct ev_periodic *w = periodics [i];
709 843
710 if (w->interval) 844 if (w->interval)
711 { 845 {
712 ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; 846 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
713 847
714 if (fabs (diff) >= 1e-4) 848 if (fabs (diff) >= 1e-4)
715 { 849 {
716 ev_periodic_stop (w); 850 ev_periodic_stop (EV_A_ w);
717 ev_periodic_start (w); 851 ev_periodic_start (EV_A_ w);
718 852
719 i = 0; /* restart loop, inefficient, but time jumps should be rare */ 853 i = 0; /* restart loop, inefficient, but time jumps should be rare */
720 } 854 }
721 } 855 }
722 } 856 }
723} 857}
724 858
725static int 859inline int
726time_update_monotonic (void) 860time_update_monotonic (EV_P)
727{ 861{
728 now = get_clock (); 862 mn_now = get_clock ();
729 863
730 if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) 864 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
731 { 865 {
732 ev_now = now + diff; 866 rt_now = rtmn_diff + mn_now;
733 return 0; 867 return 0;
734 } 868 }
735 else 869 else
736 { 870 {
737 now_floor = now; 871 now_floor = mn_now;
738 ev_now = ev_time (); 872 rt_now = ev_time ();
739 return 1; 873 return 1;
740 } 874 }
741} 875}
742 876
743static void 877static void
744time_update (void) 878time_update (EV_P)
745{ 879{
746 int i; 880 int i;
747 881
748#if EV_USE_MONOTONIC 882#if EV_USE_MONOTONIC
749 if (expect_true (have_monotonic)) 883 if (expect_true (have_monotonic))
750 { 884 {
751 if (time_update_monotonic ()) 885 if (time_update_monotonic (EV_A))
752 { 886 {
753 ev_tstamp odiff = diff; 887 ev_tstamp odiff = rtmn_diff;
754 888
755 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 889 for (i = 4; --i; ) /* loop a few times, before making important decisions */
756 { 890 {
757 diff = ev_now - now; 891 rtmn_diff = rt_now - mn_now;
758 892
759 if (fabs (odiff - diff) < MIN_TIMEJUMP) 893 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
760 return; /* all is well */ 894 return; /* all is well */
761 895
762 ev_now = ev_time (); 896 rt_now = ev_time ();
763 now = get_clock (); 897 mn_now = get_clock ();
764 now_floor = now; 898 now_floor = mn_now;
765 } 899 }
766 900
767 periodics_reschedule (diff - odiff); 901 periodics_reschedule (EV_A);
768 /* no timer adjustment, as the monotonic clock doesn't jump */ 902 /* no timer adjustment, as the monotonic clock doesn't jump */
903 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
769 } 904 }
770 } 905 }
771 else 906 else
772#endif 907#endif
773 { 908 {
774 ev_now = ev_time (); 909 rt_now = ev_time ();
775 910
776 if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 911 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
777 { 912 {
778 periodics_reschedule (ev_now - now); 913 periodics_reschedule (EV_A);
779 914
780 /* adjust timers. this is easy, as the offset is the same for all */ 915 /* adjust timers. this is easy, as the offset is the same for all */
781 for (i = 0; i < timercnt; ++i) 916 for (i = 0; i < timercnt; ++i)
782 timers [i]->at += diff; 917 timers [i]->at += rt_now - mn_now;
783 } 918 }
784 919
785 now = ev_now; 920 mn_now = rt_now;
786 } 921 }
787} 922}
788 923
789int ev_loop_done; 924void
925ev_ref (EV_P)
926{
927 ++activecnt;
928}
790 929
930void
931ev_unref (EV_P)
932{
933 --activecnt;
934}
935
936static int loop_done;
937
938void
791void ev_loop (int flags) 939ev_loop (EV_P_ int flags)
792{ 940{
793 double block; 941 double block;
794 ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 942 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
795 943
796 do 944 do
797 { 945 {
798 /* queue check watchers (and execute them) */ 946 /* queue check watchers (and execute them) */
799 if (expect_false (preparecnt)) 947 if (expect_false (preparecnt))
800 { 948 {
801 queue_events ((W *)prepares, preparecnt, EV_PREPARE); 949 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
802 call_pending (); 950 call_pending (EV_A);
803 } 951 }
804 952
805 /* update fd-related kernel structures */ 953 /* update fd-related kernel structures */
806 fd_reify (); 954 fd_reify (EV_A);
807 955
808 /* calculate blocking time */ 956 /* calculate blocking time */
809 957
810 /* we only need this for !monotonic clockor timers, but as we basically 958 /* we only need this for !monotonic clockor timers, but as we basically
811 always have timers, we just calculate it always */ 959 always have timers, we just calculate it always */
812#if EV_USE_MONOTONIC 960#if EV_USE_MONOTONIC
813 if (expect_true (have_monotonic)) 961 if (expect_true (have_monotonic))
814 time_update_monotonic (); 962 time_update_monotonic (EV_A);
815 else 963 else
816#endif 964#endif
817 { 965 {
818 ev_now = ev_time (); 966 rt_now = ev_time ();
819 now = ev_now; 967 mn_now = rt_now;
820 } 968 }
821 969
822 if (flags & EVLOOP_NONBLOCK || idlecnt) 970 if (flags & EVLOOP_NONBLOCK || idlecnt)
823 block = 0.; 971 block = 0.;
824 else 972 else
825 { 973 {
826 block = MAX_BLOCKTIME; 974 block = MAX_BLOCKTIME;
827 975
828 if (timercnt) 976 if (timercnt)
829 { 977 {
830 ev_tstamp to = timers [0]->at - now + method_fudge; 978 ev_tstamp to = timers [0]->at - mn_now + method_fudge;
831 if (block > to) block = to; 979 if (block > to) block = to;
832 } 980 }
833 981
834 if (periodiccnt) 982 if (periodiccnt)
835 { 983 {
836 ev_tstamp to = periodics [0]->at - ev_now + method_fudge; 984 ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
837 if (block > to) block = to; 985 if (block > to) block = to;
838 } 986 }
839 987
840 if (block < 0.) block = 0.; 988 if (block < 0.) block = 0.;
841 } 989 }
842 990
843 method_poll (block); 991 method_poll (EV_A_ block);
844 992
845 /* update ev_now, do magic */ 993 /* update rt_now, do magic */
846 time_update (); 994 time_update (EV_A);
847 995
848 /* queue pending timers and reschedule them */ 996 /* queue pending timers and reschedule them */
849 timers_reify (); /* relative timers called last */ 997 timers_reify (EV_A); /* relative timers called last */
850 periodics_reify (); /* absolute timers called first */ 998 periodics_reify (EV_A); /* absolute timers called first */
851 999
852 /* queue idle watchers unless io or timers are pending */ 1000 /* queue idle watchers unless io or timers are pending */
853 if (!pendingcnt) 1001 if (!pendingcnt)
854 queue_events ((W *)idles, idlecnt, EV_IDLE); 1002 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
855 1003
856 /* queue check watchers, to be executed first */ 1004 /* queue check watchers, to be executed first */
857 if (checkcnt) 1005 if (checkcnt)
858 queue_events ((W *)checks, checkcnt, EV_CHECK); 1006 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
859 1007
860 call_pending (); 1008 call_pending (EV_A);
861 } 1009 }
862 while (!ev_loop_done); 1010 while (activecnt && !loop_done);
863 1011
864 if (ev_loop_done != 2) 1012 if (loop_done != 2)
865 ev_loop_done = 0; 1013 loop_done = 0;
1014}
1015
1016void
1017ev_unloop (EV_P_ int how)
1018{
1019 loop_done = how;
866} 1020}
867 1021
868/*****************************************************************************/ 1022/*****************************************************************************/
869 1023
870static void 1024inline void
871wlist_add (WL *head, WL elem) 1025wlist_add (WL *head, WL elem)
872{ 1026{
873 elem->next = *head; 1027 elem->next = *head;
874 *head = elem; 1028 *head = elem;
875} 1029}
876 1030
877static void 1031inline void
878wlist_del (WL *head, WL elem) 1032wlist_del (WL *head, WL elem)
879{ 1033{
880 while (*head) 1034 while (*head)
881 { 1035 {
882 if (*head == elem) 1036 if (*head == elem)
… …
887 1041
888 head = &(*head)->next; 1042 head = &(*head)->next;
889 } 1043 }
890} 1044}
891 1045
892static void 1046inline void
893ev_clear_pending (W w) 1047ev_clear_pending (EV_P_ W w)
894{ 1048{
895 if (w->pending) 1049 if (w->pending)
896 { 1050 {
897 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1051 pendings [ABSPRI (w)][w->pending - 1].w = 0;
898 w->pending = 0; 1052 w->pending = 0;
899 } 1053 }
900} 1054}
901 1055
902static void 1056inline void
903ev_start (W w, int active) 1057ev_start (EV_P_ W w, int active)
904{ 1058{
905 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1059 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
906 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1060 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
907 1061
908 w->active = active; 1062 w->active = active;
1063 ev_ref (EV_A);
909} 1064}
910 1065
911static void 1066inline void
912ev_stop (W w) 1067ev_stop (EV_P_ W w)
913{ 1068{
1069 ev_unref (EV_A);
914 w->active = 0; 1070 w->active = 0;
915} 1071}
916 1072
917/*****************************************************************************/ 1073/*****************************************************************************/
918 1074
919void 1075void
920ev_io_start (struct ev_io *w) 1076ev_io_start (EV_P_ struct ev_io *w)
921{ 1077{
922 int fd = w->fd; 1078 int fd = w->fd;
923 1079
924 if (ev_is_active (w)) 1080 if (ev_is_active (w))
925 return; 1081 return;
926 1082
927 assert (("ev_io_start called with negative fd", fd >= 0)); 1083 assert (("ev_io_start called with negative fd", fd >= 0));
928 1084
929 ev_start ((W)w, 1); 1085 ev_start (EV_A_ (W)w, 1);
930 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1086 array_needsize (anfds, anfdmax, fd + 1, anfds_init);
931 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1087 wlist_add ((WL *)&anfds[fd].head, (WL)w);
932 1088
933 fd_change (fd); 1089 fd_change (EV_A_ fd);
934} 1090}
935 1091
936void 1092void
937ev_io_stop (struct ev_io *w) 1093ev_io_stop (EV_P_ struct ev_io *w)
938{ 1094{
939 ev_clear_pending ((W)w); 1095 ev_clear_pending (EV_A_ (W)w);
940 if (!ev_is_active (w)) 1096 if (!ev_is_active (w))
941 return; 1097 return;
942 1098
943 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1099 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
944 ev_stop ((W)w); 1100 ev_stop (EV_A_ (W)w);
945 1101
946 fd_change (w->fd); 1102 fd_change (EV_A_ w->fd);
947} 1103}
948 1104
949void 1105void
950ev_timer_start (struct ev_timer *w) 1106ev_timer_start (EV_P_ struct ev_timer *w)
951{ 1107{
952 if (ev_is_active (w)) 1108 if (ev_is_active (w))
953 return; 1109 return;
954 1110
955 w->at += now; 1111 w->at += mn_now;
956 1112
957 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1113 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
958 1114
959 ev_start ((W)w, ++timercnt); 1115 ev_start (EV_A_ (W)w, ++timercnt);
960 array_needsize (timers, timermax, timercnt, ); 1116 array_needsize (timers, timermax, timercnt, );
961 timers [timercnt - 1] = w; 1117 timers [timercnt - 1] = w;
962 upheap ((WT *)timers, timercnt - 1); 1118 upheap ((WT *)timers, timercnt - 1);
963} 1119}
964 1120
965void 1121void
966ev_timer_stop (struct ev_timer *w) 1122ev_timer_stop (EV_P_ struct ev_timer *w)
967{ 1123{
968 ev_clear_pending ((W)w); 1124 ev_clear_pending (EV_A_ (W)w);
969 if (!ev_is_active (w)) 1125 if (!ev_is_active (w))
970 return; 1126 return;
971 1127
972 if (w->active < timercnt--) 1128 if (w->active < timercnt--)
973 { 1129 {
… …
975 downheap ((WT *)timers, timercnt, w->active - 1); 1131 downheap ((WT *)timers, timercnt, w->active - 1);
976 } 1132 }
977 1133
978 w->at = w->repeat; 1134 w->at = w->repeat;
979 1135
980 ev_stop ((W)w); 1136 ev_stop (EV_A_ (W)w);
981} 1137}
982 1138
983void 1139void
984ev_timer_again (struct ev_timer *w) 1140ev_timer_again (EV_P_ struct ev_timer *w)
985{ 1141{
986 if (ev_is_active (w)) 1142 if (ev_is_active (w))
987 { 1143 {
988 if (w->repeat) 1144 if (w->repeat)
989 { 1145 {
990 w->at = now + w->repeat; 1146 w->at = mn_now + w->repeat;
991 downheap ((WT *)timers, timercnt, w->active - 1); 1147 downheap ((WT *)timers, timercnt, w->active - 1);
992 } 1148 }
993 else 1149 else
994 ev_timer_stop (w); 1150 ev_timer_stop (EV_A_ w);
995 } 1151 }
996 else if (w->repeat) 1152 else if (w->repeat)
997 ev_timer_start (w); 1153 ev_timer_start (EV_A_ w);
998} 1154}
999 1155
1000void 1156void
1001ev_periodic_start (struct ev_periodic *w) 1157ev_periodic_start (EV_P_ struct ev_periodic *w)
1002{ 1158{
1003 if (ev_is_active (w)) 1159 if (ev_is_active (w))
1004 return; 1160 return;
1005 1161
1006 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1162 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1007 1163
1008 /* this formula differs from the one in periodic_reify because we do not always round up */ 1164 /* this formula differs from the one in periodic_reify because we do not always round up */
1009 if (w->interval) 1165 if (w->interval)
1010 w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; 1166 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
1011 1167
1012 ev_start ((W)w, ++periodiccnt); 1168 ev_start (EV_A_ (W)w, ++periodiccnt);
1013 array_needsize (periodics, periodicmax, periodiccnt, ); 1169 array_needsize (periodics, periodicmax, periodiccnt, );
1014 periodics [periodiccnt - 1] = w; 1170 periodics [periodiccnt - 1] = w;
1015 upheap ((WT *)periodics, periodiccnt - 1); 1171 upheap ((WT *)periodics, periodiccnt - 1);
1016} 1172}
1017 1173
1018void 1174void
1019ev_periodic_stop (struct ev_periodic *w) 1175ev_periodic_stop (EV_P_ struct ev_periodic *w)
1020{ 1176{
1021 ev_clear_pending ((W)w); 1177 ev_clear_pending (EV_A_ (W)w);
1022 if (!ev_is_active (w)) 1178 if (!ev_is_active (w))
1023 return; 1179 return;
1024 1180
1025 if (w->active < periodiccnt--) 1181 if (w->active < periodiccnt--)
1026 { 1182 {
1027 periodics [w->active - 1] = periodics [periodiccnt]; 1183 periodics [w->active - 1] = periodics [periodiccnt];
1028 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1184 downheap ((WT *)periodics, periodiccnt, w->active - 1);
1029 } 1185 }
1030 1186
1031 ev_stop ((W)w); 1187 ev_stop (EV_A_ (W)w);
1188}
1189
1190void
1191ev_idle_start (EV_P_ struct ev_idle *w)
1192{
1193 if (ev_is_active (w))
1194 return;
1195
1196 ev_start (EV_A_ (W)w, ++idlecnt);
1197 array_needsize (idles, idlemax, idlecnt, );
1198 idles [idlecnt - 1] = w;
1199}
1200
1201void
1202ev_idle_stop (EV_P_ struct ev_idle *w)
1203{
1204 ev_clear_pending (EV_A_ (W)w);
1205 if (ev_is_active (w))
1206 return;
1207
1208 idles [w->active - 1] = idles [--idlecnt];
1209 ev_stop (EV_A_ (W)w);
1210}
1211
1212void
1213ev_prepare_start (EV_P_ struct ev_prepare *w)
1214{
1215 if (ev_is_active (w))
1216 return;
1217
1218 ev_start (EV_A_ (W)w, ++preparecnt);
1219 array_needsize (prepares, preparemax, preparecnt, );
1220 prepares [preparecnt - 1] = w;
1221}
1222
1223void
1224ev_prepare_stop (EV_P_ struct ev_prepare *w)
1225{
1226 ev_clear_pending (EV_A_ (W)w);
1227 if (ev_is_active (w))
1228 return;
1229
1230 prepares [w->active - 1] = prepares [--preparecnt];
1231 ev_stop (EV_A_ (W)w);
1232}
1233
1234void
1235ev_check_start (EV_P_ struct ev_check *w)
1236{
1237 if (ev_is_active (w))
1238 return;
1239
1240 ev_start (EV_A_ (W)w, ++checkcnt);
1241 array_needsize (checks, checkmax, checkcnt, );
1242 checks [checkcnt - 1] = w;
1243}
1244
1245void
1246ev_check_stop (EV_P_ struct ev_check *w)
1247{
1248 ev_clear_pending (EV_A_ (W)w);
1249 if (ev_is_active (w))
1250 return;
1251
1252 checks [w->active - 1] = checks [--checkcnt];
1253 ev_stop (EV_A_ (W)w);
1032} 1254}
1033 1255
1034#ifndef SA_RESTART 1256#ifndef SA_RESTART
1035# define SA_RESTART 0 1257# define SA_RESTART 0
1036#endif 1258#endif
1037 1259
1038void 1260void
1039ev_signal_start (struct ev_signal *w) 1261ev_signal_start (EV_P_ struct ev_signal *w)
1040{ 1262{
1263#if EV_MULTIPLICITY
1264 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1265#endif
1041 if (ev_is_active (w)) 1266 if (ev_is_active (w))
1042 return; 1267 return;
1043 1268
1044 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1269 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1045 1270
1046 ev_start ((W)w, 1); 1271 ev_start (EV_A_ (W)w, 1);
1047 array_needsize (signals, signalmax, w->signum, signals_init); 1272 array_needsize (signals, signalmax, w->signum, signals_init);
1048 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1273 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1049 1274
1050 if (!w->next) 1275 if (!w->next)
1051 { 1276 {
… …
1056 sigaction (w->signum, &sa, 0); 1281 sigaction (w->signum, &sa, 0);
1057 } 1282 }
1058} 1283}
1059 1284
1060void 1285void
1061ev_signal_stop (struct ev_signal *w) 1286ev_signal_stop (EV_P_ struct ev_signal *w)
1062{ 1287{
1063 ev_clear_pending ((W)w); 1288 ev_clear_pending (EV_A_ (W)w);
1064 if (!ev_is_active (w)) 1289 if (!ev_is_active (w))
1065 return; 1290 return;
1066 1291
1067 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1292 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1068 ev_stop ((W)w); 1293 ev_stop (EV_A_ (W)w);
1069 1294
1070 if (!signals [w->signum - 1].head) 1295 if (!signals [w->signum - 1].head)
1071 signal (w->signum, SIG_DFL); 1296 signal (w->signum, SIG_DFL);
1072} 1297}
1073 1298
1074void 1299void
1075ev_idle_start (struct ev_idle *w) 1300ev_child_start (EV_P_ struct ev_child *w)
1076{ 1301{
1302#if EV_MULTIPLICITY
1303 assert (("child watchers are only supported in the default loop", loop == default_loop));
1304#endif
1077 if (ev_is_active (w)) 1305 if (ev_is_active (w))
1078 return; 1306 return;
1079 1307
1080 ev_start ((W)w, ++idlecnt); 1308 ev_start (EV_A_ (W)w, 1);
1081 array_needsize (idles, idlemax, idlecnt, ); 1309 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1082 idles [idlecnt - 1] = w;
1083} 1310}
1084 1311
1085void 1312void
1086ev_idle_stop (struct ev_idle *w) 1313ev_child_stop (EV_P_ struct ev_child *w)
1087{ 1314{
1088 ev_clear_pending ((W)w); 1315 ev_clear_pending (EV_A_ (W)w);
1089 if (ev_is_active (w)) 1316 if (ev_is_active (w))
1090 return; 1317 return;
1091 1318
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); 1319 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1158 ev_stop ((W)w); 1320 ev_stop (EV_A_ (W)w);
1159} 1321}
1160 1322
1161/*****************************************************************************/ 1323/*****************************************************************************/
1162 1324
1163struct ev_once 1325struct ev_once
… …
1167 void (*cb)(int revents, void *arg); 1329 void (*cb)(int revents, void *arg);
1168 void *arg; 1330 void *arg;
1169}; 1331};
1170 1332
1171static void 1333static void
1172once_cb (struct ev_once *once, int revents) 1334once_cb (EV_P_ struct ev_once *once, int revents)
1173{ 1335{
1174 void (*cb)(int revents, void *arg) = once->cb; 1336 void (*cb)(int revents, void *arg) = once->cb;
1175 void *arg = once->arg; 1337 void *arg = once->arg;
1176 1338
1177 ev_io_stop (&once->io); 1339 ev_io_stop (EV_A_ &once->io);
1178 ev_timer_stop (&once->to); 1340 ev_timer_stop (EV_A_ &once->to);
1179 free (once); 1341 free (once);
1180 1342
1181 cb (revents, arg); 1343 cb (revents, arg);
1182} 1344}
1183 1345
1184static void 1346static void
1185once_cb_io (struct ev_io *w, int revents) 1347once_cb_io (EV_P_ struct ev_io *w, int revents)
1186{ 1348{
1187 once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 1349 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1188} 1350}
1189 1351
1190static void 1352static void
1191once_cb_to (struct ev_timer *w, int revents) 1353once_cb_to (EV_P_ struct ev_timer *w, int revents)
1192{ 1354{
1193 once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 1355 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1194} 1356}
1195 1357
1196void 1358void
1197ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1359ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1198{ 1360{
1199 struct ev_once *once = malloc (sizeof (struct ev_once)); 1361 struct ev_once *once = malloc (sizeof (struct ev_once));
1200 1362
1201 if (!once) 1363 if (!once)
1202 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1364 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
… …
1207 1369
1208 ev_watcher_init (&once->io, once_cb_io); 1370 ev_watcher_init (&once->io, once_cb_io);
1209 if (fd >= 0) 1371 if (fd >= 0)
1210 { 1372 {
1211 ev_io_set (&once->io, fd, events); 1373 ev_io_set (&once->io, fd, events);
1212 ev_io_start (&once->io); 1374 ev_io_start (EV_A_ &once->io);
1213 } 1375 }
1214 1376
1215 ev_watcher_init (&once->to, once_cb_to); 1377 ev_watcher_init (&once->to, once_cb_to);
1216 if (timeout >= 0.) 1378 if (timeout >= 0.)
1217 { 1379 {
1218 ev_timer_set (&once->to, timeout, 0.); 1380 ev_timer_set (&once->to, timeout, 0.);
1219 ev_timer_start (&once->to); 1381 ev_timer_start (EV_A_ &once->to);
1220 } 1382 }
1221 } 1383 }
1222} 1384}
1223 1385
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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