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Comparing libev/ev.c (file contents):
Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC vs.
Revision 1.78 by root, Thu Nov 8 21:08:56 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>
38#include <fcntl.h> 59#include <fcntl.h>
39#include <signal.h>
40#include <stddef.h> 60#include <stddef.h>
41 61
42#include <stdio.h> 62#include <stdio.h>
43 63
44#include <assert.h> 64#include <assert.h>
45#include <errno.h> 65#include <errno.h>
46#include <sys/types.h> 66#include <sys/types.h>
67#include <time.h>
68
69#include <signal.h>
70
47#ifndef WIN32 71#ifndef WIN32
72# include <unistd.h>
73# include <sys/time.h>
48# include <sys/wait.h> 74# include <sys/wait.h>
49#endif 75#endif
50#include <sys/time.h>
51#include <time.h>
52
53/**/ 76/**/
54 77
55#ifndef EV_USE_MONOTONIC 78#ifndef EV_USE_MONOTONIC
56# define EV_USE_MONOTONIC 1 79# define EV_USE_MONOTONIC 1
57#endif 80#endif
58 81
59#ifndef EV_USE_SELECT 82#ifndef EV_USE_SELECT
60# define EV_USE_SELECT 1 83# define EV_USE_SELECT 1
61#endif 84#endif
62 85
63#ifndef EV_USEV_POLL 86#ifndef EV_USE_POLL
64# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ 87# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65#endif 88#endif
66 89
67#ifndef EV_USE_EPOLL 90#ifndef EV_USE_EPOLL
68# define EV_USE_EPOLL 0 91# define EV_USE_EPOLL 0
69#endif 92#endif
70 93
71#ifndef EV_USE_KQUEUE 94#ifndef EV_USE_KQUEUE
72# define EV_USE_KQUEUE 0 95# define EV_USE_KQUEUE 0
96#endif
97
98#ifndef EV_USE_WIN32
99# ifdef WIN32
100# define EV_USE_WIN32 0 /* it does not exist, use select */
101# undef EV_USE_SELECT
102# define EV_USE_SELECT 1
103# else
104# define EV_USE_WIN32 0
105# endif
73#endif 106#endif
74 107
75#ifndef EV_USE_REALTIME 108#ifndef EV_USE_REALTIME
76# define EV_USE_REALTIME 1 109# define EV_USE_REALTIME 1
77#endif 110#endif
… …
115typedef struct ev_watcher_list *WL; 148typedef struct ev_watcher_list *WL;
116typedef struct ev_watcher_time *WT; 149typedef struct ev_watcher_time *WT;
117 150
118static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 151static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119 152
153#include "ev_win32.c"
154
120/*****************************************************************************/ 155/*****************************************************************************/
121 156
157static void (*syserr_cb)(const char *msg);
158
159void ev_set_syserr_cb (void (*cb)(const char *msg))
160{
161 syserr_cb = cb;
162}
163
164static void
165syserr (const char *msg)
166{
167 if (!msg)
168 msg = "(libev) system error";
169
170 if (syserr_cb)
171 syserr_cb (msg);
172 else
173 {
174 perror (msg);
175 abort ();
176 }
177}
178
179static void *(*alloc)(void *ptr, long size);
180
181void ev_set_allocator (void *(*cb)(void *ptr, long size))
182{
183 alloc = cb;
184}
185
186static void *
187ev_realloc (void *ptr, long size)
188{
189 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
190
191 if (!ptr && size)
192 {
193 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
194 abort ();
195 }
196
197 return ptr;
198}
199
200#define ev_malloc(size) ev_realloc (0, (size))
201#define ev_free(ptr) ev_realloc ((ptr), 0)
202
203/*****************************************************************************/
204
122typedef struct 205typedef struct
123{ 206{
124 struct ev_watcher_list *head; 207 WL head;
125 unsigned char events; 208 unsigned char events;
126 unsigned char reify; 209 unsigned char reify;
127} ANFD; 210} ANFD;
128 211
129typedef struct 212typedef struct
… …
185ev_now (EV_P) 268ev_now (EV_P)
186{ 269{
187 return rt_now; 270 return rt_now;
188} 271}
189 272
190#define array_roundsize(base,n) ((n) | 4 & ~3) 273#define array_roundsize(type,n) ((n) | 4 & ~3)
191 274
192#define array_needsize(base,cur,cnt,init) \ 275#define array_needsize(type,base,cur,cnt,init) \
193 if (expect_false ((cnt) > cur)) \ 276 if (expect_false ((cnt) > cur)) \
194 { \ 277 { \
195 int newcnt = cur; \ 278 int newcnt = cur; \
196 do \ 279 do \
197 { \ 280 { \
198 newcnt = array_roundsize (base, newcnt << 1); \ 281 newcnt = array_roundsize (type, newcnt << 1); \
199 } \ 282 } \
200 while ((cnt) > newcnt); \ 283 while ((cnt) > newcnt); \
201 \ 284 \
202 base = realloc (base, sizeof (*base) * (newcnt)); \ 285 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
203 init (base + cur, newcnt - cur); \ 286 init (base + cur, newcnt - cur); \
204 cur = newcnt; \ 287 cur = newcnt; \
205 } 288 }
289
290#define array_slim(type,stem) \
291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
292 { \
293 stem ## max = array_roundsize (stem ## cnt >> 1); \
294 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
295 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
296 }
297
298/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300#define array_free_microshit(stem) \
301 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302
303#define array_free(stem, idx) \
304 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
206 305
207/*****************************************************************************/ 306/*****************************************************************************/
208 307
209static void 308static void
210anfds_init (ANFD *base, int count) 309anfds_init (ANFD *base, int count)
… …
217 316
218 ++base; 317 ++base;
219 } 318 }
220} 319}
221 320
222static void 321void
223event (EV_P_ W w, int events) 322ev_feed_event (EV_P_ void *w, int revents)
224{ 323{
324 W w_ = (W)w;
325
225 if (w->pending) 326 if (w_->pending)
226 { 327 {
227 pendings [ABSPRI (w)][w->pending - 1].events |= events; 328 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
228 return; 329 return;
229 } 330 }
230 331
231 w->pending = ++pendingcnt [ABSPRI (w)]; 332 w_->pending = ++pendingcnt [ABSPRI (w_)];
232 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); 333 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
233 pendings [ABSPRI (w)][w->pending - 1].w = w; 334 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234 pendings [ABSPRI (w)][w->pending - 1].events = events; 335 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235} 336}
236 337
237static void 338static void
238queue_events (EV_P_ W *events, int eventcnt, int type) 339queue_events (EV_P_ W *events, int eventcnt, int type)
239{ 340{
240 int i; 341 int i;
241 342
242 for (i = 0; i < eventcnt; ++i) 343 for (i = 0; i < eventcnt; ++i)
243 event (EV_A_ events [i], type); 344 ev_feed_event (EV_A_ events [i], type);
244} 345}
245 346
246static void 347static void
247fd_event (EV_P_ int fd, int events) 348fd_event (EV_P_ int fd, int events)
248{ 349{
… …
252 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 353 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
253 { 354 {
254 int ev = w->events & events; 355 int ev = w->events & events;
255 356
256 if (ev) 357 if (ev)
257 event (EV_A_ (W)w, ev); 358 ev_feed_event (EV_A_ (W)w, ev);
258 } 359 }
259} 360}
260 361
261/*****************************************************************************/ 362/*****************************************************************************/
262 363
… …
276 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 377 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
277 events |= w->events; 378 events |= w->events;
278 379
279 anfd->reify = 0; 380 anfd->reify = 0;
280 381
281 if (anfd->events != events)
282 {
283 method_modify (EV_A_ fd, anfd->events, events); 382 method_modify (EV_A_ fd, anfd->events, events);
284 anfd->events = events; 383 anfd->events = events;
285 }
286 } 384 }
287 385
288 fdchangecnt = 0; 386 fdchangecnt = 0;
289} 387}
290 388
291static void 389static void
292fd_change (EV_P_ int fd) 390fd_change (EV_P_ int fd)
293{ 391{
294 if (anfds [fd].reify || fdchangecnt < 0) 392 if (anfds [fd].reify)
295 return; 393 return;
296 394
297 anfds [fd].reify = 1; 395 anfds [fd].reify = 1;
298 396
299 ++fdchangecnt; 397 ++fdchangecnt;
300 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 398 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
301 fdchanges [fdchangecnt - 1] = fd; 399 fdchanges [fdchangecnt - 1] = fd;
302} 400}
303 401
304static void 402static void
305fd_kill (EV_P_ int fd) 403fd_kill (EV_P_ int fd)
… …
307 struct ev_io *w; 405 struct ev_io *w;
308 406
309 while ((w = (struct ev_io *)anfds [fd].head)) 407 while ((w = (struct ev_io *)anfds [fd].head))
310 { 408 {
311 ev_io_stop (EV_A_ w); 409 ev_io_stop (EV_A_ w);
312 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 410 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
313 } 411 }
412}
413
414static int
415fd_valid (int fd)
416{
417#ifdef WIN32
418 return !!win32_get_osfhandle (fd);
419#else
420 return fcntl (fd, F_GETFD) != -1;
421#endif
314} 422}
315 423
316/* called on EBADF to verify fds */ 424/* called on EBADF to verify fds */
317static void 425static void
318fd_ebadf (EV_P) 426fd_ebadf (EV_P)
319{ 427{
320 int fd; 428 int fd;
321 429
322 for (fd = 0; fd < anfdmax; ++fd) 430 for (fd = 0; fd < anfdmax; ++fd)
323 if (anfds [fd].events) 431 if (anfds [fd].events)
324 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 432 if (!fd_valid (fd) == -1 && errno == EBADF)
325 fd_kill (EV_A_ fd); 433 fd_kill (EV_A_ fd);
326} 434}
327 435
328/* called on ENOMEM in select/poll to kill some fds and retry */ 436/* called on ENOMEM in select/poll to kill some fds and retry */
329static void 437static void
330fd_enomem (EV_P) 438fd_enomem (EV_P)
331{ 439{
332 int fd = anfdmax; 440 int fd;
333 441
334 while (fd--) 442 for (fd = anfdmax; fd--; )
335 if (anfds [fd].events) 443 if (anfds [fd].events)
336 { 444 {
337 close (fd);
338 fd_kill (EV_A_ fd); 445 fd_kill (EV_A_ fd);
339 return; 446 return;
340 } 447 }
341} 448}
342 449
450/* usually called after fork if method needs to re-arm all fds from scratch */
451static void
452fd_rearm_all (EV_P)
453{
454 int fd;
455
456 /* this should be highly optimised to not do anything but set a flag */
457 for (fd = 0; fd < anfdmax; ++fd)
458 if (anfds [fd].events)
459 {
460 anfds [fd].events = 0;
461 fd_change (EV_A_ fd);
462 }
463}
464
343/*****************************************************************************/ 465/*****************************************************************************/
344 466
345static void 467static void
346upheap (WT *heap, int k) 468upheap (WT *heap, int k)
347{ 469{
348 WT w = heap [k]; 470 WT w = heap [k];
349 471
350 while (k && heap [k >> 1]->at > w->at) 472 while (k && heap [k >> 1]->at > w->at)
351 { 473 {
352 heap [k] = heap [k >> 1]; 474 heap [k] = heap [k >> 1];
353 heap [k]->active = k + 1; 475 ((W)heap [k])->active = k + 1;
354 k >>= 1; 476 k >>= 1;
355 } 477 }
356 478
357 heap [k] = w; 479 heap [k] = w;
358 heap [k]->active = k + 1; 480 ((W)heap [k])->active = k + 1;
359 481
360} 482}
361 483
362static void 484static void
363downheap (WT *heap, int N, int k) 485downheap (WT *heap, int N, int k)
… …
373 495
374 if (w->at <= heap [j]->at) 496 if (w->at <= heap [j]->at)
375 break; 497 break;
376 498
377 heap [k] = heap [j]; 499 heap [k] = heap [j];
378 heap [k]->active = k + 1; 500 ((W)heap [k])->active = k + 1;
379 k = j; 501 k = j;
380 } 502 }
381 503
382 heap [k] = w; 504 heap [k] = w;
383 heap [k]->active = k + 1; 505 ((W)heap [k])->active = k + 1;
384} 506}
385 507
386/*****************************************************************************/ 508/*****************************************************************************/
387 509
388typedef struct 510typedef struct
389{ 511{
390 struct ev_watcher_list *head; 512 WL head;
391 sig_atomic_t volatile gotsig; 513 sig_atomic_t volatile gotsig;
392} ANSIG; 514} ANSIG;
393 515
394static ANSIG *signals; 516static ANSIG *signals;
395static int signalmax; 517static int signalmax;
396 518
397static int sigpipe [2]; 519static int sigpipe [2];
398static sig_atomic_t volatile gotsig; 520static sig_atomic_t volatile gotsig;
521static struct ev_io sigev;
399 522
400static void 523static void
401signals_init (ANSIG *base, int count) 524signals_init (ANSIG *base, int count)
402{ 525{
403 while (count--) 526 while (count--)
… …
410} 533}
411 534
412static void 535static void
413sighandler (int signum) 536sighandler (int signum)
414{ 537{
538#if WIN32
539 signal (signum, sighandler);
540#endif
541
415 signals [signum - 1].gotsig = 1; 542 signals [signum - 1].gotsig = 1;
416 543
417 if (!gotsig) 544 if (!gotsig)
418 { 545 {
419 int old_errno = errno; 546 int old_errno = errno;
420 gotsig = 1; 547 gotsig = 1;
548#ifdef WIN32
549 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
550#else
421 write (sigpipe [1], &signum, 1); 551 write (sigpipe [1], &signum, 1);
552#endif
422 errno = old_errno; 553 errno = old_errno;
423 } 554 }
424} 555}
425 556
426static void 557static void
427sigcb (EV_P_ struct ev_io *iow, int revents) 558sigcb (EV_P_ struct ev_io *iow, int revents)
428{ 559{
429 struct ev_watcher_list *w; 560 WL w;
430 int signum; 561 int signum;
431 562
563#ifdef WIN32
564 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
565#else
432 read (sigpipe [0], &revents, 1); 566 read (sigpipe [0], &revents, 1);
567#endif
433 gotsig = 0; 568 gotsig = 0;
434 569
435 for (signum = signalmax; signum--; ) 570 for (signum = signalmax; signum--; )
436 if (signals [signum].gotsig) 571 if (signals [signum].gotsig)
437 { 572 {
438 signals [signum].gotsig = 0; 573 signals [signum].gotsig = 0;
439 574
440 for (w = signals [signum].head; w; w = w->next) 575 for (w = signals [signum].head; w; w = w->next)
441 event (EV_A_ (W)w, EV_SIGNAL); 576 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
442 } 577 }
443} 578}
444 579
445static void 580static void
446siginit (EV_P) 581siginit (EV_P)
… …
459 ev_unref (EV_A); /* child watcher should not keep loop alive */ 594 ev_unref (EV_A); /* child watcher should not keep loop alive */
460} 595}
461 596
462/*****************************************************************************/ 597/*****************************************************************************/
463 598
599static struct ev_child *childs [PID_HASHSIZE];
600
464#ifndef WIN32 601#ifndef WIN32
602
603static struct ev_signal childev;
465 604
466#ifndef WCONTINUED 605#ifndef WCONTINUED
467# define WCONTINUED 0 606# define WCONTINUED 0
468#endif 607#endif
469 608
… …
473 struct ev_child *w; 612 struct ev_child *w;
474 613
475 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 614 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
476 if (w->pid == pid || !w->pid) 615 if (w->pid == pid || !w->pid)
477 { 616 {
478 w->priority = sw->priority; /* need to do it *now* */ 617 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
479 w->rpid = pid; 618 w->rpid = pid;
480 w->rstatus = status; 619 w->rstatus = status;
481 event (EV_A_ (W)w, EV_CHILD); 620 ev_feed_event (EV_A_ (W)w, EV_CHILD);
482 } 621 }
483} 622}
484 623
485static void 624static void
486childcb (EV_P_ struct ev_signal *sw, int revents) 625childcb (EV_P_ struct ev_signal *sw, int revents)
… …
488 int pid, status; 627 int pid, status;
489 628
490 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 629 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
491 { 630 {
492 /* make sure we are called again until all childs have been reaped */ 631 /* make sure we are called again until all childs have been reaped */
493 event (EV_A_ (W)sw, EV_SIGNAL); 632 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
494 633
495 child_reap (EV_A_ sw, pid, pid, status); 634 child_reap (EV_A_ sw, pid, pid, status);
496 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 635 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
497 } 636 }
498} 637}
… …
505# include "ev_kqueue.c" 644# include "ev_kqueue.c"
506#endif 645#endif
507#if EV_USE_EPOLL 646#if EV_USE_EPOLL
508# include "ev_epoll.c" 647# include "ev_epoll.c"
509#endif 648#endif
510#if EV_USEV_POLL 649#if EV_USE_POLL
511# include "ev_poll.c" 650# include "ev_poll.c"
512#endif 651#endif
513#if EV_USE_SELECT 652#if EV_USE_SELECT
514# include "ev_select.c" 653# include "ev_select.c"
515#endif 654#endif
… …
542ev_method (EV_P) 681ev_method (EV_P)
543{ 682{
544 return method; 683 return method;
545} 684}
546 685
547inline int 686static void
548loop_init (EV_P_ int methods) 687loop_init (EV_P_ int methods)
549{ 688{
550 if (!method) 689 if (!method)
551 { 690 {
552#if EV_USE_MONOTONIC 691#if EV_USE_MONOTONIC
… …
560 rt_now = ev_time (); 699 rt_now = ev_time ();
561 mn_now = get_clock (); 700 mn_now = get_clock ();
562 now_floor = mn_now; 701 now_floor = mn_now;
563 rtmn_diff = rt_now - mn_now; 702 rtmn_diff = rt_now - mn_now;
564 703
565 if (pipe (sigpipe))
566 return 0;
567
568 if (methods == EVMETHOD_AUTO) 704 if (methods == EVMETHOD_AUTO)
569 if (!enable_secure () && getenv ("LIBmethodS")) 705 if (!enable_secure () && getenv ("LIBEV_METHODS"))
570 methods = atoi (getenv ("LIBmethodS")); 706 methods = atoi (getenv ("LIBEV_METHODS"));
571 else 707 else
572 methods = EVMETHOD_ANY; 708 methods = EVMETHOD_ANY;
573 709
574 method = 0; 710 method = 0;
711#if EV_USE_WIN32
712 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
713#endif
575#if EV_USE_KQUEUE 714#if EV_USE_KQUEUE
576 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 715 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
577#endif 716#endif
578#if EV_USE_EPOLL 717#if EV_USE_EPOLL
579 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 718 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
580#endif 719#endif
581#if EV_USEV_POLL 720#if EV_USE_POLL
582 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 721 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
583#endif 722#endif
584#if EV_USE_SELECT 723#if EV_USE_SELECT
585 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 724 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
586#endif 725#endif
587 726
727 ev_watcher_init (&sigev, sigcb);
728 ev_set_priority (&sigev, EV_MAXPRI);
729 }
730}
731
732void
733loop_destroy (EV_P)
734{
735 int i;
736
737#if EV_USE_WIN32
738 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
739#endif
740#if EV_USE_KQUEUE
741 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
742#endif
743#if EV_USE_EPOLL
744 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
745#endif
746#if EV_USE_POLL
747 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
748#endif
749#if EV_USE_SELECT
750 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
751#endif
752
753 for (i = NUMPRI; i--; )
754 array_free (pending, [i]);
755
756 /* have to use the microsoft-never-gets-it-right macro */
757 array_free_microshit (fdchange);
758 array_free_microshit (timer);
759 array_free_microshit (periodic);
760 array_free_microshit (idle);
761 array_free_microshit (prepare);
762 array_free_microshit (check);
763
764 method = 0;
765}
766
767static void
768loop_fork (EV_P)
769{
770#if EV_USE_EPOLL
771 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
772#endif
773#if EV_USE_KQUEUE
774 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
775#endif
776
777 if (ev_is_active (&sigev))
778 {
779 /* default loop */
780
781 ev_ref (EV_A);
782 ev_io_stop (EV_A_ &sigev);
783 close (sigpipe [0]);
784 close (sigpipe [1]);
785
786 while (pipe (sigpipe))
787 syserr ("(libev) error creating pipe");
788
789 siginit (EV_A);
790 }
791
792 postfork = 0;
793}
794
795#if EV_MULTIPLICITY
796struct ev_loop *
797ev_loop_new (int methods)
798{
799 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
800
801 memset (loop, 0, sizeof (struct ev_loop));
802
803 loop_init (EV_A_ methods);
804
805 if (ev_method (EV_A))
806 return loop;
807
808 return 0;
809}
810
811void
812ev_loop_destroy (EV_P)
813{
814 loop_destroy (EV_A);
815 ev_free (loop);
816}
817
818void
819ev_loop_fork (EV_P)
820{
821 postfork = 1;
822}
823
824#endif
825
826#if EV_MULTIPLICITY
827struct ev_loop default_loop_struct;
828static struct ev_loop *default_loop;
829
830struct ev_loop *
831#else
832static int default_loop;
833
834int
835#endif
836ev_default_loop (int methods)
837{
838 if (sigpipe [0] == sigpipe [1])
839 if (pipe (sigpipe))
840 return 0;
841
842 if (!default_loop)
843 {
844#if EV_MULTIPLICITY
845 struct ev_loop *loop = default_loop = &default_loop_struct;
846#else
847 default_loop = 1;
848#endif
849
850 loop_init (EV_A_ methods);
851
588 if (method) 852 if (ev_method (EV_A))
589 { 853 {
590 ev_watcher_init (&sigev, sigcb);
591 ev_set_priority (&sigev, EV_MAXPRI);
592 siginit (EV_A); 854 siginit (EV_A);
593 855
594#ifndef WIN32 856#ifndef WIN32
595 ev_signal_init (&childev, childcb, SIGCHLD); 857 ev_signal_init (&childev, childcb, SIGCHLD);
596 ev_set_priority (&childev, EV_MAXPRI); 858 ev_set_priority (&childev, EV_MAXPRI);
597 ev_signal_start (EV_A_ &childev); 859 ev_signal_start (EV_A_ &childev);
598 ev_unref (EV_A); /* child watcher should not keep loop alive */ 860 ev_unref (EV_A); /* child watcher should not keep loop alive */
599#endif 861#endif
600 } 862 }
863 else
864 default_loop = 0;
601 } 865 }
602 866
603 return method; 867 return default_loop;
604} 868}
605 869
870void
871ev_default_destroy (void)
872{
606#if EV_MULTIPLICITY 873#if EV_MULTIPLICITY
874 struct ev_loop *loop = default_loop;
875#endif
607 876
608struct ev_loop * 877#ifndef WIN32
609ev_loop_new (int methods) 878 ev_ref (EV_A); /* child watcher */
610{ 879 ev_signal_stop (EV_A_ &childev);
611 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); 880#endif
612 881
613 if (loop_init (EV_A_ methods)) 882 ev_ref (EV_A); /* signal watcher */
883 ev_io_stop (EV_A_ &sigev);
884
885 close (sigpipe [0]); sigpipe [0] = 0;
886 close (sigpipe [1]); sigpipe [1] = 0;
887
888 loop_destroy (EV_A);
889}
890
891void
892ev_default_fork (void)
893{
894#if EV_MULTIPLICITY
895 struct ev_loop *loop = default_loop;
896#endif
897
898 if (method)
899 postfork = 1;
900}
901
902/*****************************************************************************/
903
904static int
905any_pending (EV_P)
906{
907 int pri;
908
909 for (pri = NUMPRI; pri--; )
910 if (pendingcnt [pri])
614 return loop; 911 return 1;
615
616 ev_loop_delete (loop);
617 912
618 return 0; 913 return 0;
619} 914}
620
621void
622ev_loop_delete (EV_P)
623{
624 /*TODO*/
625 free (loop);
626}
627
628#else
629
630int
631ev_init (int methods)
632{
633 return loop_init (methods);
634}
635
636#endif
637
638/*****************************************************************************/
639
640void
641ev_fork_prepare (void)
642{
643 /* nop */
644}
645
646void
647ev_fork_parent (void)
648{
649 /* nop */
650}
651
652void
653ev_fork_child (void)
654{
655 /*TODO*/
656#if !EV_MULTIPLICITY
657#if EV_USE_EPOLL
658 if (method == EVMETHOD_EPOLL)
659 epoll_postfork_child (EV_A);
660#endif
661
662 ev_io_stop (EV_A_ &sigev);
663 close (sigpipe [0]);
664 close (sigpipe [1]);
665 pipe (sigpipe);
666 siginit (EV_A);
667#endif
668}
669
670/*****************************************************************************/
671 915
672static void 916static void
673call_pending (EV_P) 917call_pending (EV_P)
674{ 918{
675 int pri; 919 int pri;
… …
688} 932}
689 933
690static void 934static void
691timers_reify (EV_P) 935timers_reify (EV_P)
692{ 936{
693 while (timercnt && timers [0]->at <= mn_now) 937 while (timercnt && ((WT)timers [0])->at <= mn_now)
694 { 938 {
695 struct ev_timer *w = timers [0]; 939 struct ev_timer *w = timers [0];
940
941 assert (("inactive timer on timer heap detected", ev_is_active (w)));
696 942
697 /* first reschedule or stop timer */ 943 /* first reschedule or stop timer */
698 if (w->repeat) 944 if (w->repeat)
699 { 945 {
700 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 946 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
701 w->at = mn_now + w->repeat; 947 ((WT)w)->at = mn_now + w->repeat;
702 downheap ((WT *)timers, timercnt, 0); 948 downheap ((WT *)timers, timercnt, 0);
703 } 949 }
704 else 950 else
705 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 951 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
706 952
707 event (EV_A_ (W)w, EV_TIMEOUT); 953 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
708 } 954 }
709} 955}
710 956
711static void 957static void
712periodics_reify (EV_P) 958periodics_reify (EV_P)
713{ 959{
714 while (periodiccnt && periodics [0]->at <= rt_now) 960 while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
715 { 961 {
716 struct ev_periodic *w = periodics [0]; 962 struct ev_periodic *w = periodics [0];
717 963
964 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
965
718 /* first reschedule or stop timer */ 966 /* first reschedule or stop timer */
719 if (w->interval) 967 if (w->reschedule_cb)
720 { 968 {
969 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
970
971 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
972 downheap ((WT *)periodics, periodiccnt, 0);
973 }
974 else if (w->interval)
975 {
721 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 976 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
722 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); 977 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
723 downheap ((WT *)periodics, periodiccnt, 0); 978 downheap ((WT *)periodics, periodiccnt, 0);
724 } 979 }
725 else 980 else
726 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 981 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
727 982
728 event (EV_A_ (W)w, EV_PERIODIC); 983 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
729 } 984 }
730} 985}
731 986
732static void 987static void
733periodics_reschedule (EV_P) 988periodics_reschedule (EV_P)
… …
737 /* adjust periodics after time jump */ 992 /* adjust periodics after time jump */
738 for (i = 0; i < periodiccnt; ++i) 993 for (i = 0; i < periodiccnt; ++i)
739 { 994 {
740 struct ev_periodic *w = periodics [i]; 995 struct ev_periodic *w = periodics [i];
741 996
997 if (w->reschedule_cb)
998 ((WT)w)->at = w->reschedule_cb (w, rt_now);
742 if (w->interval) 999 else if (w->interval)
743 {
744 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 1000 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
745
746 if (fabs (diff) >= 1e-4)
747 {
748 ev_periodic_stop (EV_A_ w);
749 ev_periodic_start (EV_A_ w);
750
751 i = 0; /* restart loop, inefficient, but time jumps should be rare */
752 }
753 }
754 } 1001 }
1002
1003 /* now rebuild the heap */
1004 for (i = periodiccnt >> 1; i--; )
1005 downheap ((WT *)periodics, periodiccnt, i);
755} 1006}
756 1007
757inline int 1008inline int
758time_update_monotonic (EV_P) 1009time_update_monotonic (EV_P)
759{ 1010{
… …
810 { 1061 {
811 periodics_reschedule (EV_A); 1062 periodics_reschedule (EV_A);
812 1063
813 /* adjust timers. this is easy, as the offset is the same for all */ 1064 /* adjust timers. this is easy, as the offset is the same for all */
814 for (i = 0; i < timercnt; ++i) 1065 for (i = 0; i < timercnt; ++i)
815 timers [i]->at += rt_now - mn_now; 1066 ((WT)timers [i])->at += rt_now - mn_now;
816 } 1067 }
817 1068
818 mn_now = rt_now; 1069 mn_now = rt_now;
819 } 1070 }
820} 1071}
… …
846 { 1097 {
847 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1098 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
848 call_pending (EV_A); 1099 call_pending (EV_A);
849 } 1100 }
850 1101
1102 /* we might have forked, so reify kernel state if necessary */
1103 if (expect_false (postfork))
1104 loop_fork (EV_A);
1105
851 /* update fd-related kernel structures */ 1106 /* update fd-related kernel structures */
852 fd_reify (EV_A); 1107 fd_reify (EV_A);
853 1108
854 /* calculate blocking time */ 1109 /* calculate blocking time */
855 1110
856 /* we only need this for !monotonic clockor timers, but as we basically 1111 /* we only need this for !monotonic clock or timers, but as we basically
857 always have timers, we just calculate it always */ 1112 always have timers, we just calculate it always */
858#if EV_USE_MONOTONIC 1113#if EV_USE_MONOTONIC
859 if (expect_true (have_monotonic)) 1114 if (expect_true (have_monotonic))
860 time_update_monotonic (EV_A); 1115 time_update_monotonic (EV_A);
861 else 1116 else
… …
871 { 1126 {
872 block = MAX_BLOCKTIME; 1127 block = MAX_BLOCKTIME;
873 1128
874 if (timercnt) 1129 if (timercnt)
875 { 1130 {
876 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1131 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
877 if (block > to) block = to; 1132 if (block > to) block = to;
878 } 1133 }
879 1134
880 if (periodiccnt) 1135 if (periodiccnt)
881 { 1136 {
882 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1137 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
883 if (block > to) block = to; 1138 if (block > to) block = to;
884 } 1139 }
885 1140
886 if (block < 0.) block = 0.; 1141 if (block < 0.) block = 0.;
887 } 1142 }
… …
894 /* queue pending timers and reschedule them */ 1149 /* queue pending timers and reschedule them */
895 timers_reify (EV_A); /* relative timers called last */ 1150 timers_reify (EV_A); /* relative timers called last */
896 periodics_reify (EV_A); /* absolute timers called first */ 1151 periodics_reify (EV_A); /* absolute timers called first */
897 1152
898 /* queue idle watchers unless io or timers are pending */ 1153 /* queue idle watchers unless io or timers are pending */
899 if (!pendingcnt) 1154 if (idlecnt && !any_pending (EV_A))
900 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1155 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
901 1156
902 /* queue check watchers, to be executed first */ 1157 /* queue check watchers, to be executed first */
903 if (checkcnt) 1158 if (checkcnt)
904 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1159 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
… …
979 return; 1234 return;
980 1235
981 assert (("ev_io_start called with negative fd", fd >= 0)); 1236 assert (("ev_io_start called with negative fd", fd >= 0));
982 1237
983 ev_start (EV_A_ (W)w, 1); 1238 ev_start (EV_A_ (W)w, 1);
984 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1239 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
985 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1240 wlist_add ((WL *)&anfds[fd].head, (WL)w);
986 1241
987 fd_change (EV_A_ fd); 1242 fd_change (EV_A_ fd);
988} 1243}
989 1244
… …
1004ev_timer_start (EV_P_ struct ev_timer *w) 1259ev_timer_start (EV_P_ struct ev_timer *w)
1005{ 1260{
1006 if (ev_is_active (w)) 1261 if (ev_is_active (w))
1007 return; 1262 return;
1008 1263
1009 w->at += mn_now; 1264 ((WT)w)->at += mn_now;
1010 1265
1011 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1266 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1012 1267
1013 ev_start (EV_A_ (W)w, ++timercnt); 1268 ev_start (EV_A_ (W)w, ++timercnt);
1014 array_needsize (timers, timermax, timercnt, ); 1269 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1015 timers [timercnt - 1] = w; 1270 timers [timercnt - 1] = w;
1016 upheap ((WT *)timers, timercnt - 1); 1271 upheap ((WT *)timers, timercnt - 1);
1272
1273 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1017} 1274}
1018 1275
1019void 1276void
1020ev_timer_stop (EV_P_ struct ev_timer *w) 1277ev_timer_stop (EV_P_ struct ev_timer *w)
1021{ 1278{
1022 ev_clear_pending (EV_A_ (W)w); 1279 ev_clear_pending (EV_A_ (W)w);
1023 if (!ev_is_active (w)) 1280 if (!ev_is_active (w))
1024 return; 1281 return;
1025 1282
1283 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1284
1026 if (w->active < timercnt--) 1285 if (((W)w)->active < timercnt--)
1027 { 1286 {
1028 timers [w->active - 1] = timers [timercnt]; 1287 timers [((W)w)->active - 1] = timers [timercnt];
1029 downheap ((WT *)timers, timercnt, w->active - 1); 1288 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1030 } 1289 }
1031 1290
1032 w->at = w->repeat; 1291 ((WT)w)->at = w->repeat;
1033 1292
1034 ev_stop (EV_A_ (W)w); 1293 ev_stop (EV_A_ (W)w);
1035} 1294}
1036 1295
1037void 1296void
… …
1039{ 1298{
1040 if (ev_is_active (w)) 1299 if (ev_is_active (w))
1041 { 1300 {
1042 if (w->repeat) 1301 if (w->repeat)
1043 { 1302 {
1044 w->at = mn_now + w->repeat; 1303 ((WT)w)->at = mn_now + w->repeat;
1045 downheap ((WT *)timers, timercnt, w->active - 1); 1304 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1046 } 1305 }
1047 else 1306 else
1048 ev_timer_stop (EV_A_ w); 1307 ev_timer_stop (EV_A_ w);
1049 } 1308 }
1050 else if (w->repeat) 1309 else if (w->repeat)
… …
1055ev_periodic_start (EV_P_ struct ev_periodic *w) 1314ev_periodic_start (EV_P_ struct ev_periodic *w)
1056{ 1315{
1057 if (ev_is_active (w)) 1316 if (ev_is_active (w))
1058 return; 1317 return;
1059 1318
1319 if (w->reschedule_cb)
1320 ((WT)w)->at = w->reschedule_cb (w, rt_now);
1321 else if (w->interval)
1322 {
1060 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1323 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1061
1062 /* this formula differs from the one in periodic_reify because we do not always round up */ 1324 /* this formula differs from the one in periodic_reify because we do not always round up */
1063 if (w->interval)
1064 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; 1325 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1326 }
1065 1327
1066 ev_start (EV_A_ (W)w, ++periodiccnt); 1328 ev_start (EV_A_ (W)w, ++periodiccnt);
1067 array_needsize (periodics, periodicmax, periodiccnt, ); 1329 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1068 periodics [periodiccnt - 1] = w; 1330 periodics [periodiccnt - 1] = w;
1069 upheap ((WT *)periodics, periodiccnt - 1); 1331 upheap ((WT *)periodics, periodiccnt - 1);
1332
1333 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1070} 1334}
1071 1335
1072void 1336void
1073ev_periodic_stop (EV_P_ struct ev_periodic *w) 1337ev_periodic_stop (EV_P_ struct ev_periodic *w)
1074{ 1338{
1075 ev_clear_pending (EV_A_ (W)w); 1339 ev_clear_pending (EV_A_ (W)w);
1076 if (!ev_is_active (w)) 1340 if (!ev_is_active (w))
1077 return; 1341 return;
1078 1342
1343 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1344
1079 if (w->active < periodiccnt--) 1345 if (((W)w)->active < periodiccnt--)
1080 { 1346 {
1081 periodics [w->active - 1] = periodics [periodiccnt]; 1347 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1082 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1348 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1083 } 1349 }
1084 1350
1351 ev_stop (EV_A_ (W)w);
1352}
1353
1354void
1355ev_periodic_again (EV_P_ struct ev_periodic *w)
1356{
1357 ev_periodic_stop (EV_A_ w);
1358 ev_periodic_start (EV_A_ w);
1359}
1360
1361void
1362ev_idle_start (EV_P_ struct ev_idle *w)
1363{
1364 if (ev_is_active (w))
1365 return;
1366
1367 ev_start (EV_A_ (W)w, ++idlecnt);
1368 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1369 idles [idlecnt - 1] = w;
1370}
1371
1372void
1373ev_idle_stop (EV_P_ struct ev_idle *w)
1374{
1375 ev_clear_pending (EV_A_ (W)w);
1376 if (ev_is_active (w))
1377 return;
1378
1379 idles [((W)w)->active - 1] = idles [--idlecnt];
1380 ev_stop (EV_A_ (W)w);
1381}
1382
1383void
1384ev_prepare_start (EV_P_ struct ev_prepare *w)
1385{
1386 if (ev_is_active (w))
1387 return;
1388
1389 ev_start (EV_A_ (W)w, ++preparecnt);
1390 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1391 prepares [preparecnt - 1] = w;
1392}
1393
1394void
1395ev_prepare_stop (EV_P_ struct ev_prepare *w)
1396{
1397 ev_clear_pending (EV_A_ (W)w);
1398 if (ev_is_active (w))
1399 return;
1400
1401 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1402 ev_stop (EV_A_ (W)w);
1403}
1404
1405void
1406ev_check_start (EV_P_ struct ev_check *w)
1407{
1408 if (ev_is_active (w))
1409 return;
1410
1411 ev_start (EV_A_ (W)w, ++checkcnt);
1412 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1413 checks [checkcnt - 1] = w;
1414}
1415
1416void
1417ev_check_stop (EV_P_ struct ev_check *w)
1418{
1419 ev_clear_pending (EV_A_ (W)w);
1420 if (ev_is_active (w))
1421 return;
1422
1423 checks [((W)w)->active - 1] = checks [--checkcnt];
1085 ev_stop (EV_A_ (W)w); 1424 ev_stop (EV_A_ (W)w);
1086} 1425}
1087 1426
1088#ifndef SA_RESTART 1427#ifndef SA_RESTART
1089# define SA_RESTART 0 1428# define SA_RESTART 0
1090#endif 1429#endif
1091 1430
1092void 1431void
1093ev_signal_start (EV_P_ struct ev_signal *w) 1432ev_signal_start (EV_P_ struct ev_signal *w)
1094{ 1433{
1434#if EV_MULTIPLICITY
1435 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1436#endif
1095 if (ev_is_active (w)) 1437 if (ev_is_active (w))
1096 return; 1438 return;
1097 1439
1098 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1440 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1099 1441
1100 ev_start (EV_A_ (W)w, 1); 1442 ev_start (EV_A_ (W)w, 1);
1101 array_needsize (signals, signalmax, w->signum, signals_init); 1443 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1102 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1444 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1103 1445
1104 if (!w->next) 1446 if (!((WL)w)->next)
1105 { 1447 {
1448#if WIN32
1449 signal (w->signum, sighandler);
1450#else
1106 struct sigaction sa; 1451 struct sigaction sa;
1107 sa.sa_handler = sighandler; 1452 sa.sa_handler = sighandler;
1108 sigfillset (&sa.sa_mask); 1453 sigfillset (&sa.sa_mask);
1109 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1454 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1110 sigaction (w->signum, &sa, 0); 1455 sigaction (w->signum, &sa, 0);
1456#endif
1111 } 1457 }
1112} 1458}
1113 1459
1114void 1460void
1115ev_signal_stop (EV_P_ struct ev_signal *w) 1461ev_signal_stop (EV_P_ struct ev_signal *w)
… …
1124 if (!signals [w->signum - 1].head) 1470 if (!signals [w->signum - 1].head)
1125 signal (w->signum, SIG_DFL); 1471 signal (w->signum, SIG_DFL);
1126} 1472}
1127 1473
1128void 1474void
1129ev_idle_start (EV_P_ struct ev_idle *w)
1130{
1131 if (ev_is_active (w))
1132 return;
1133
1134 ev_start (EV_A_ (W)w, ++idlecnt);
1135 array_needsize (idles, idlemax, idlecnt, );
1136 idles [idlecnt - 1] = w;
1137}
1138
1139void
1140ev_idle_stop (EV_P_ struct ev_idle *w)
1141{
1142 ev_clear_pending (EV_A_ (W)w);
1143 if (ev_is_active (w))
1144 return;
1145
1146 idles [w->active - 1] = idles [--idlecnt];
1147 ev_stop (EV_A_ (W)w);
1148}
1149
1150void
1151ev_prepare_start (EV_P_ struct ev_prepare *w)
1152{
1153 if (ev_is_active (w))
1154 return;
1155
1156 ev_start (EV_A_ (W)w, ++preparecnt);
1157 array_needsize (prepares, preparemax, preparecnt, );
1158 prepares [preparecnt - 1] = w;
1159}
1160
1161void
1162ev_prepare_stop (EV_P_ struct ev_prepare *w)
1163{
1164 ev_clear_pending (EV_A_ (W)w);
1165 if (ev_is_active (w))
1166 return;
1167
1168 prepares [w->active - 1] = prepares [--preparecnt];
1169 ev_stop (EV_A_ (W)w);
1170}
1171
1172void
1173ev_check_start (EV_P_ struct ev_check *w)
1174{
1175 if (ev_is_active (w))
1176 return;
1177
1178 ev_start (EV_A_ (W)w, ++checkcnt);
1179 array_needsize (checks, checkmax, checkcnt, );
1180 checks [checkcnt - 1] = w;
1181}
1182
1183void
1184ev_check_stop (EV_P_ struct ev_check *w)
1185{
1186 ev_clear_pending (EV_A_ (W)w);
1187 if (ev_is_active (w))
1188 return;
1189
1190 checks [w->active - 1] = checks [--checkcnt];
1191 ev_stop (EV_A_ (W)w);
1192}
1193
1194void
1195ev_child_start (EV_P_ struct ev_child *w) 1475ev_child_start (EV_P_ struct ev_child *w)
1196{ 1476{
1477#if EV_MULTIPLICITY
1478 assert (("child watchers are only supported in the default loop", loop == default_loop));
1479#endif
1197 if (ev_is_active (w)) 1480 if (ev_is_active (w))
1198 return; 1481 return;
1199 1482
1200 ev_start (EV_A_ (W)w, 1); 1483 ev_start (EV_A_ (W)w, 1);
1201 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1484 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1228 void (*cb)(int revents, void *arg) = once->cb; 1511 void (*cb)(int revents, void *arg) = once->cb;
1229 void *arg = once->arg; 1512 void *arg = once->arg;
1230 1513
1231 ev_io_stop (EV_A_ &once->io); 1514 ev_io_stop (EV_A_ &once->io);
1232 ev_timer_stop (EV_A_ &once->to); 1515 ev_timer_stop (EV_A_ &once->to);
1233 free (once); 1516 ev_free (once);
1234 1517
1235 cb (revents, arg); 1518 cb (revents, arg);
1236} 1519}
1237 1520
1238static void 1521static void
… …
1248} 1531}
1249 1532
1250void 1533void
1251ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1534ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1252{ 1535{
1253 struct ev_once *once = malloc (sizeof (struct ev_once)); 1536 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1254 1537
1255 if (!once) 1538 if (!once)
1256 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1539 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1257 else 1540 else
1258 { 1541 {
… …
1273 ev_timer_start (EV_A_ &once->to); 1556 ev_timer_start (EV_A_ &once->to);
1274 } 1557 }
1275 } 1558 }
1276} 1559}
1277 1560
1278/*****************************************************************************/
1279
1280#if 0
1281
1282struct ev_io wio;
1283
1284static void
1285sin_cb (struct ev_io *w, int revents)
1286{
1287 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1288}
1289
1290static void
1291ocb (struct ev_timer *w, int revents)
1292{
1293 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1294 ev_timer_stop (w);
1295 ev_timer_start (w);
1296}
1297
1298static void
1299scb (struct ev_signal *w, int revents)
1300{
1301 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1302 ev_io_stop (&wio);
1303 ev_io_start (&wio);
1304}
1305
1306static void
1307gcb (struct ev_signal *w, int revents)
1308{
1309 fprintf (stderr, "generic %x\n", revents);
1310
1311}
1312
1313int main (void)
1314{
1315 ev_init (0);
1316
1317 ev_io_init (&wio, sin_cb, 0, EV_READ);
1318 ev_io_start (&wio);
1319
1320 struct ev_timer t[10000];
1321
1322#if 0
1323 int i;
1324 for (i = 0; i < 10000; ++i)
1325 {
1326 struct ev_timer *w = t + i;
1327 ev_watcher_init (w, ocb, i);
1328 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1329 ev_timer_start (w);
1330 if (drand48 () < 0.5)
1331 ev_timer_stop (w);
1332 }
1333#endif
1334
1335 struct ev_timer t1;
1336 ev_timer_init (&t1, ocb, 5, 10);
1337 ev_timer_start (&t1);
1338
1339 struct ev_signal sig;
1340 ev_signal_init (&sig, scb, SIGQUIT);
1341 ev_signal_start (&sig);
1342
1343 struct ev_check cw;
1344 ev_check_init (&cw, gcb);
1345 ev_check_start (&cw);
1346
1347 struct ev_idle iw;
1348 ev_idle_init (&iw, gcb);
1349 ev_idle_start (&iw);
1350
1351 ev_loop (0);
1352
1353 return 0;
1354}
1355
1356#endif
1357
1358
1359
1360

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