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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 1.79 by root, Fri Nov 9 15:15:20 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 347inline void
247fd_event (EV_P_ int fd, int events) 348fd_event (EV_P_ int fd, int revents)
248{ 349{
249 ANFD *anfd = anfds + fd; 350 ANFD *anfd = anfds + fd;
250 struct ev_io *w; 351 struct ev_io *w;
251 352
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 & revents;
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 }
360}
361
362void
363ev_feed_fd_event (EV_P_ int fd, int revents)
364{
365 fd_event (EV_A_ fd, revents);
259} 366}
260 367
261/*****************************************************************************/ 368/*****************************************************************************/
262 369
263static void 370static void
… …
276 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 383 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
277 events |= w->events; 384 events |= w->events;
278 385
279 anfd->reify = 0; 386 anfd->reify = 0;
280 387
281 if (anfd->events != events)
282 {
283 method_modify (EV_A_ fd, anfd->events, events); 388 method_modify (EV_A_ fd, anfd->events, events);
284 anfd->events = events; 389 anfd->events = events;
285 }
286 } 390 }
287 391
288 fdchangecnt = 0; 392 fdchangecnt = 0;
289} 393}
290 394
291static void 395static void
292fd_change (EV_P_ int fd) 396fd_change (EV_P_ int fd)
293{ 397{
294 if (anfds [fd].reify || fdchangecnt < 0) 398 if (anfds [fd].reify)
295 return; 399 return;
296 400
297 anfds [fd].reify = 1; 401 anfds [fd].reify = 1;
298 402
299 ++fdchangecnt; 403 ++fdchangecnt;
300 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 404 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
301 fdchanges [fdchangecnt - 1] = fd; 405 fdchanges [fdchangecnt - 1] = fd;
302} 406}
303 407
304static void 408static void
305fd_kill (EV_P_ int fd) 409fd_kill (EV_P_ int fd)
… …
307 struct ev_io *w; 411 struct ev_io *w;
308 412
309 while ((w = (struct ev_io *)anfds [fd].head)) 413 while ((w = (struct ev_io *)anfds [fd].head))
310 { 414 {
311 ev_io_stop (EV_A_ w); 415 ev_io_stop (EV_A_ w);
312 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 416 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
313 } 417 }
418}
419
420static int
421fd_valid (int fd)
422{
423#ifdef WIN32
424 return !!win32_get_osfhandle (fd);
425#else
426 return fcntl (fd, F_GETFD) != -1;
427#endif
314} 428}
315 429
316/* called on EBADF to verify fds */ 430/* called on EBADF to verify fds */
317static void 431static void
318fd_ebadf (EV_P) 432fd_ebadf (EV_P)
319{ 433{
320 int fd; 434 int fd;
321 435
322 for (fd = 0; fd < anfdmax; ++fd) 436 for (fd = 0; fd < anfdmax; ++fd)
323 if (anfds [fd].events) 437 if (anfds [fd].events)
324 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 438 if (!fd_valid (fd) == -1 && errno == EBADF)
325 fd_kill (EV_A_ fd); 439 fd_kill (EV_A_ fd);
326} 440}
327 441
328/* called on ENOMEM in select/poll to kill some fds and retry */ 442/* called on ENOMEM in select/poll to kill some fds and retry */
329static void 443static void
330fd_enomem (EV_P) 444fd_enomem (EV_P)
331{ 445{
332 int fd = anfdmax; 446 int fd;
333 447
334 while (fd--) 448 for (fd = anfdmax; fd--; )
335 if (anfds [fd].events) 449 if (anfds [fd].events)
336 { 450 {
337 close (fd);
338 fd_kill (EV_A_ fd); 451 fd_kill (EV_A_ fd);
339 return; 452 return;
340 } 453 }
341} 454}
342 455
456/* usually called after fork if method needs to re-arm all fds from scratch */
457static void
458fd_rearm_all (EV_P)
459{
460 int fd;
461
462 /* this should be highly optimised to not do anything but set a flag */
463 for (fd = 0; fd < anfdmax; ++fd)
464 if (anfds [fd].events)
465 {
466 anfds [fd].events = 0;
467 fd_change (EV_A_ fd);
468 }
469}
470
343/*****************************************************************************/ 471/*****************************************************************************/
344 472
345static void 473static void
346upheap (WT *heap, int k) 474upheap (WT *heap, int k)
347{ 475{
348 WT w = heap [k]; 476 WT w = heap [k];
349 477
350 while (k && heap [k >> 1]->at > w->at) 478 while (k && heap [k >> 1]->at > w->at)
351 { 479 {
352 heap [k] = heap [k >> 1]; 480 heap [k] = heap [k >> 1];
353 heap [k]->active = k + 1; 481 ((W)heap [k])->active = k + 1;
354 k >>= 1; 482 k >>= 1;
355 } 483 }
356 484
357 heap [k] = w; 485 heap [k] = w;
358 heap [k]->active = k + 1; 486 ((W)heap [k])->active = k + 1;
359 487
360} 488}
361 489
362static void 490static void
363downheap (WT *heap, int N, int k) 491downheap (WT *heap, int N, int k)
… …
373 501
374 if (w->at <= heap [j]->at) 502 if (w->at <= heap [j]->at)
375 break; 503 break;
376 504
377 heap [k] = heap [j]; 505 heap [k] = heap [j];
378 heap [k]->active = k + 1; 506 ((W)heap [k])->active = k + 1;
379 k = j; 507 k = j;
380 } 508 }
381 509
382 heap [k] = w; 510 heap [k] = w;
383 heap [k]->active = k + 1; 511 ((W)heap [k])->active = k + 1;
384} 512}
385 513
386/*****************************************************************************/ 514/*****************************************************************************/
387 515
388typedef struct 516typedef struct
389{ 517{
390 struct ev_watcher_list *head; 518 WL head;
391 sig_atomic_t volatile gotsig; 519 sig_atomic_t volatile gotsig;
392} ANSIG; 520} ANSIG;
393 521
394static ANSIG *signals; 522static ANSIG *signals;
395static int signalmax; 523static int signalmax;
396 524
397static int sigpipe [2]; 525static int sigpipe [2];
398static sig_atomic_t volatile gotsig; 526static sig_atomic_t volatile gotsig;
527static struct ev_io sigev;
399 528
400static void 529static void
401signals_init (ANSIG *base, int count) 530signals_init (ANSIG *base, int count)
402{ 531{
403 while (count--) 532 while (count--)
… …
410} 539}
411 540
412static void 541static void
413sighandler (int signum) 542sighandler (int signum)
414{ 543{
544#if WIN32
545 signal (signum, sighandler);
546#endif
547
415 signals [signum - 1].gotsig = 1; 548 signals [signum - 1].gotsig = 1;
416 549
417 if (!gotsig) 550 if (!gotsig)
418 { 551 {
419 int old_errno = errno; 552 int old_errno = errno;
420 gotsig = 1; 553 gotsig = 1;
554#ifdef WIN32
555 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
556#else
421 write (sigpipe [1], &signum, 1); 557 write (sigpipe [1], &signum, 1);
558#endif
422 errno = old_errno; 559 errno = old_errno;
423 } 560 }
424} 561}
425 562
563void
564ev_feed_signal_event (EV_P_ int signum)
565{
566#if EV_MULTIPLICITY
567 assert (("feeding signal events is only supported in the default loop", loop == default_loop));
568#endif
569
570 --signum;
571
572 if (signum < 0 || signum >= signalmax)
573 return;
574
575 signals [signum].gotsig = 0;
576
577 for (w = signals [signum].head; w; w = w->next)
578 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
579}
580
426static void 581static void
427sigcb (EV_P_ struct ev_io *iow, int revents) 582sigcb (EV_P_ struct ev_io *iow, int revents)
428{ 583{
429 struct ev_watcher_list *w; 584 WL w;
430 int signum; 585 int signum;
431 586
587#ifdef WIN32
588 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
589#else
432 read (sigpipe [0], &revents, 1); 590 read (sigpipe [0], &revents, 1);
591#endif
433 gotsig = 0; 592 gotsig = 0;
434 593
435 for (signum = signalmax; signum--; ) 594 for (signum = signalmax; signum--; )
436 if (signals [signum].gotsig) 595 if (signals [signum].gotsig)
437 { 596 sigevent (EV_A_ signum + 1);
438 signals [signum].gotsig = 0;
439
440 for (w = signals [signum].head; w; w = w->next)
441 event (EV_A_ (W)w, EV_SIGNAL);
442 }
443} 597}
444 598
445static void 599static void
446siginit (EV_P) 600siginit (EV_P)
447{ 601{
… …
459 ev_unref (EV_A); /* child watcher should not keep loop alive */ 613 ev_unref (EV_A); /* child watcher should not keep loop alive */
460} 614}
461 615
462/*****************************************************************************/ 616/*****************************************************************************/
463 617
618static struct ev_child *childs [PID_HASHSIZE];
619
464#ifndef WIN32 620#ifndef WIN32
621
622static struct ev_signal childev;
465 623
466#ifndef WCONTINUED 624#ifndef WCONTINUED
467# define WCONTINUED 0 625# define WCONTINUED 0
468#endif 626#endif
469 627
… …
473 struct ev_child *w; 631 struct ev_child *w;
474 632
475 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 633 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) 634 if (w->pid == pid || !w->pid)
477 { 635 {
478 w->priority = sw->priority; /* need to do it *now* */ 636 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
479 w->rpid = pid; 637 w->rpid = pid;
480 w->rstatus = status; 638 w->rstatus = status;
481 event (EV_A_ (W)w, EV_CHILD); 639 ev_feed_event (EV_A_ (W)w, EV_CHILD);
482 } 640 }
483} 641}
484 642
485static void 643static void
486childcb (EV_P_ struct ev_signal *sw, int revents) 644childcb (EV_P_ struct ev_signal *sw, int revents)
… …
488 int pid, status; 646 int pid, status;
489 647
490 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 648 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
491 { 649 {
492 /* make sure we are called again until all childs have been reaped */ 650 /* make sure we are called again until all childs have been reaped */
493 event (EV_A_ (W)sw, EV_SIGNAL); 651 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
494 652
495 child_reap (EV_A_ sw, pid, pid, status); 653 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 */ 654 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
497 } 655 }
498} 656}
… …
505# include "ev_kqueue.c" 663# include "ev_kqueue.c"
506#endif 664#endif
507#if EV_USE_EPOLL 665#if EV_USE_EPOLL
508# include "ev_epoll.c" 666# include "ev_epoll.c"
509#endif 667#endif
510#if EV_USEV_POLL 668#if EV_USE_POLL
511# include "ev_poll.c" 669# include "ev_poll.c"
512#endif 670#endif
513#if EV_USE_SELECT 671#if EV_USE_SELECT
514# include "ev_select.c" 672# include "ev_select.c"
515#endif 673#endif
… …
542ev_method (EV_P) 700ev_method (EV_P)
543{ 701{
544 return method; 702 return method;
545} 703}
546 704
547inline int 705static void
548loop_init (EV_P_ int methods) 706loop_init (EV_P_ int methods)
549{ 707{
550 if (!method) 708 if (!method)
551 { 709 {
552#if EV_USE_MONOTONIC 710#if EV_USE_MONOTONIC
… …
560 rt_now = ev_time (); 718 rt_now = ev_time ();
561 mn_now = get_clock (); 719 mn_now = get_clock ();
562 now_floor = mn_now; 720 now_floor = mn_now;
563 rtmn_diff = rt_now - mn_now; 721 rtmn_diff = rt_now - mn_now;
564 722
565 if (pipe (sigpipe))
566 return 0;
567
568 if (methods == EVMETHOD_AUTO) 723 if (methods == EVMETHOD_AUTO)
569 if (!enable_secure () && getenv ("LIBmethodS")) 724 if (!enable_secure () && getenv ("LIBEV_METHODS"))
570 methods = atoi (getenv ("LIBmethodS")); 725 methods = atoi (getenv ("LIBEV_METHODS"));
571 else 726 else
572 methods = EVMETHOD_ANY; 727 methods = EVMETHOD_ANY;
573 728
574 method = 0; 729 method = 0;
730#if EV_USE_WIN32
731 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
732#endif
575#if EV_USE_KQUEUE 733#if EV_USE_KQUEUE
576 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 734 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
577#endif 735#endif
578#if EV_USE_EPOLL 736#if EV_USE_EPOLL
579 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 737 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
580#endif 738#endif
581#if EV_USEV_POLL 739#if EV_USE_POLL
582 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 740 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
583#endif 741#endif
584#if EV_USE_SELECT 742#if EV_USE_SELECT
585 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 743 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
586#endif 744#endif
587 745
746 ev_watcher_init (&sigev, sigcb);
747 ev_set_priority (&sigev, EV_MAXPRI);
748 }
749}
750
751void
752loop_destroy (EV_P)
753{
754 int i;
755
756#if EV_USE_WIN32
757 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
758#endif
759#if EV_USE_KQUEUE
760 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
761#endif
762#if EV_USE_EPOLL
763 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
764#endif
765#if EV_USE_POLL
766 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
767#endif
768#if EV_USE_SELECT
769 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
770#endif
771
772 for (i = NUMPRI; i--; )
773 array_free (pending, [i]);
774
775 /* have to use the microsoft-never-gets-it-right macro */
776 array_free_microshit (fdchange);
777 array_free_microshit (timer);
778 array_free_microshit (periodic);
779 array_free_microshit (idle);
780 array_free_microshit (prepare);
781 array_free_microshit (check);
782
783 method = 0;
784}
785
786static void
787loop_fork (EV_P)
788{
789#if EV_USE_EPOLL
790 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
791#endif
792#if EV_USE_KQUEUE
793 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
794#endif
795
796 if (ev_is_active (&sigev))
797 {
798 /* default loop */
799
800 ev_ref (EV_A);
801 ev_io_stop (EV_A_ &sigev);
802 close (sigpipe [0]);
803 close (sigpipe [1]);
804
805 while (pipe (sigpipe))
806 syserr ("(libev) error creating pipe");
807
808 siginit (EV_A);
809 }
810
811 postfork = 0;
812}
813
814#if EV_MULTIPLICITY
815struct ev_loop *
816ev_loop_new (int methods)
817{
818 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
819
820 memset (loop, 0, sizeof (struct ev_loop));
821
822 loop_init (EV_A_ methods);
823
824 if (ev_method (EV_A))
825 return loop;
826
827 return 0;
828}
829
830void
831ev_loop_destroy (EV_P)
832{
833 loop_destroy (EV_A);
834 ev_free (loop);
835}
836
837void
838ev_loop_fork (EV_P)
839{
840 postfork = 1;
841}
842
843#endif
844
845#if EV_MULTIPLICITY
846struct ev_loop default_loop_struct;
847static struct ev_loop *default_loop;
848
849struct ev_loop *
850#else
851static int default_loop;
852
853int
854#endif
855ev_default_loop (int methods)
856{
857 if (sigpipe [0] == sigpipe [1])
858 if (pipe (sigpipe))
859 return 0;
860
861 if (!default_loop)
862 {
863#if EV_MULTIPLICITY
864 struct ev_loop *loop = default_loop = &default_loop_struct;
865#else
866 default_loop = 1;
867#endif
868
869 loop_init (EV_A_ methods);
870
588 if (method) 871 if (ev_method (EV_A))
589 { 872 {
590 ev_watcher_init (&sigev, sigcb);
591 ev_set_priority (&sigev, EV_MAXPRI);
592 siginit (EV_A); 873 siginit (EV_A);
593 874
594#ifndef WIN32 875#ifndef WIN32
595 ev_signal_init (&childev, childcb, SIGCHLD); 876 ev_signal_init (&childev, childcb, SIGCHLD);
596 ev_set_priority (&childev, EV_MAXPRI); 877 ev_set_priority (&childev, EV_MAXPRI);
597 ev_signal_start (EV_A_ &childev); 878 ev_signal_start (EV_A_ &childev);
598 ev_unref (EV_A); /* child watcher should not keep loop alive */ 879 ev_unref (EV_A); /* child watcher should not keep loop alive */
599#endif 880#endif
600 } 881 }
882 else
883 default_loop = 0;
601 } 884 }
602 885
603 return method; 886 return default_loop;
604} 887}
605 888
889void
890ev_default_destroy (void)
891{
606#if EV_MULTIPLICITY 892#if EV_MULTIPLICITY
893 struct ev_loop *loop = default_loop;
894#endif
607 895
608struct ev_loop * 896#ifndef WIN32
609ev_loop_new (int methods) 897 ev_ref (EV_A); /* child watcher */
610{ 898 ev_signal_stop (EV_A_ &childev);
611 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); 899#endif
612 900
613 if (loop_init (EV_A_ methods)) 901 ev_ref (EV_A); /* signal watcher */
902 ev_io_stop (EV_A_ &sigev);
903
904 close (sigpipe [0]); sigpipe [0] = 0;
905 close (sigpipe [1]); sigpipe [1] = 0;
906
907 loop_destroy (EV_A);
908}
909
910void
911ev_default_fork (void)
912{
913#if EV_MULTIPLICITY
914 struct ev_loop *loop = default_loop;
915#endif
916
917 if (method)
918 postfork = 1;
919}
920
921/*****************************************************************************/
922
923static int
924any_pending (EV_P)
925{
926 int pri;
927
928 for (pri = NUMPRI; pri--; )
929 if (pendingcnt [pri])
614 return loop; 930 return 1;
615
616 ev_loop_delete (loop);
617 931
618 return 0; 932 return 0;
619} 933}
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/*****************************************************************************/
671 934
672static void 935static void
673call_pending (EV_P) 936call_pending (EV_P)
674{ 937{
675 int pri; 938 int pri;
… …
688} 951}
689 952
690static void 953static void
691timers_reify (EV_P) 954timers_reify (EV_P)
692{ 955{
693 while (timercnt && timers [0]->at <= mn_now) 956 while (timercnt && ((WT)timers [0])->at <= mn_now)
694 { 957 {
695 struct ev_timer *w = timers [0]; 958 struct ev_timer *w = timers [0];
959
960 assert (("inactive timer on timer heap detected", ev_is_active (w)));
696 961
697 /* first reschedule or stop timer */ 962 /* first reschedule or stop timer */
698 if (w->repeat) 963 if (w->repeat)
699 { 964 {
700 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 965 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
701 w->at = mn_now + w->repeat; 966 ((WT)w)->at = mn_now + w->repeat;
702 downheap ((WT *)timers, timercnt, 0); 967 downheap ((WT *)timers, timercnt, 0);
703 } 968 }
704 else 969 else
705 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 970 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
706 971
707 event (EV_A_ (W)w, EV_TIMEOUT); 972 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
708 } 973 }
709} 974}
710 975
711static void 976static void
712periodics_reify (EV_P) 977periodics_reify (EV_P)
713{ 978{
714 while (periodiccnt && periodics [0]->at <= rt_now) 979 while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
715 { 980 {
716 struct ev_periodic *w = periodics [0]; 981 struct ev_periodic *w = periodics [0];
717 982
983 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
984
718 /* first reschedule or stop timer */ 985 /* first reschedule or stop timer */
719 if (w->interval) 986 if (w->reschedule_cb)
720 { 987 {
988 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
989
990 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
991 downheap ((WT *)periodics, periodiccnt, 0);
992 }
993 else if (w->interval)
994 {
721 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 995 ((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)); 996 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
723 downheap ((WT *)periodics, periodiccnt, 0); 997 downheap ((WT *)periodics, periodiccnt, 0);
724 } 998 }
725 else 999 else
726 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1000 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
727 1001
728 event (EV_A_ (W)w, EV_PERIODIC); 1002 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
729 } 1003 }
730} 1004}
731 1005
732static void 1006static void
733periodics_reschedule (EV_P) 1007periodics_reschedule (EV_P)
… …
737 /* adjust periodics after time jump */ 1011 /* adjust periodics after time jump */
738 for (i = 0; i < periodiccnt; ++i) 1012 for (i = 0; i < periodiccnt; ++i)
739 { 1013 {
740 struct ev_periodic *w = periodics [i]; 1014 struct ev_periodic *w = periodics [i];
741 1015
1016 if (w->reschedule_cb)
1017 ((WT)w)->at = w->reschedule_cb (w, rt_now);
742 if (w->interval) 1018 else if (w->interval)
743 {
744 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 1019 ((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 } 1020 }
1021
1022 /* now rebuild the heap */
1023 for (i = periodiccnt >> 1; i--; )
1024 downheap ((WT *)periodics, periodiccnt, i);
755} 1025}
756 1026
757inline int 1027inline int
758time_update_monotonic (EV_P) 1028time_update_monotonic (EV_P)
759{ 1029{
… …
810 { 1080 {
811 periodics_reschedule (EV_A); 1081 periodics_reschedule (EV_A);
812 1082
813 /* adjust timers. this is easy, as the offset is the same for all */ 1083 /* adjust timers. this is easy, as the offset is the same for all */
814 for (i = 0; i < timercnt; ++i) 1084 for (i = 0; i < timercnt; ++i)
815 timers [i]->at += rt_now - mn_now; 1085 ((WT)timers [i])->at += rt_now - mn_now;
816 } 1086 }
817 1087
818 mn_now = rt_now; 1088 mn_now = rt_now;
819 } 1089 }
820} 1090}
… …
846 { 1116 {
847 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1117 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
848 call_pending (EV_A); 1118 call_pending (EV_A);
849 } 1119 }
850 1120
1121 /* we might have forked, so reify kernel state if necessary */
1122 if (expect_false (postfork))
1123 loop_fork (EV_A);
1124
851 /* update fd-related kernel structures */ 1125 /* update fd-related kernel structures */
852 fd_reify (EV_A); 1126 fd_reify (EV_A);
853 1127
854 /* calculate blocking time */ 1128 /* calculate blocking time */
855 1129
856 /* we only need this for !monotonic clockor timers, but as we basically 1130 /* we only need this for !monotonic clock or timers, but as we basically
857 always have timers, we just calculate it always */ 1131 always have timers, we just calculate it always */
858#if EV_USE_MONOTONIC 1132#if EV_USE_MONOTONIC
859 if (expect_true (have_monotonic)) 1133 if (expect_true (have_monotonic))
860 time_update_monotonic (EV_A); 1134 time_update_monotonic (EV_A);
861 else 1135 else
… …
871 { 1145 {
872 block = MAX_BLOCKTIME; 1146 block = MAX_BLOCKTIME;
873 1147
874 if (timercnt) 1148 if (timercnt)
875 { 1149 {
876 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1150 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
877 if (block > to) block = to; 1151 if (block > to) block = to;
878 } 1152 }
879 1153
880 if (periodiccnt) 1154 if (periodiccnt)
881 { 1155 {
882 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1156 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
883 if (block > to) block = to; 1157 if (block > to) block = to;
884 } 1158 }
885 1159
886 if (block < 0.) block = 0.; 1160 if (block < 0.) block = 0.;
887 } 1161 }
… …
894 /* queue pending timers and reschedule them */ 1168 /* queue pending timers and reschedule them */
895 timers_reify (EV_A); /* relative timers called last */ 1169 timers_reify (EV_A); /* relative timers called last */
896 periodics_reify (EV_A); /* absolute timers called first */ 1170 periodics_reify (EV_A); /* absolute timers called first */
897 1171
898 /* queue idle watchers unless io or timers are pending */ 1172 /* queue idle watchers unless io or timers are pending */
899 if (!pendingcnt) 1173 if (idlecnt && !any_pending (EV_A))
900 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1174 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
901 1175
902 /* queue check watchers, to be executed first */ 1176 /* queue check watchers, to be executed first */
903 if (checkcnt) 1177 if (checkcnt)
904 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1178 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
… …
979 return; 1253 return;
980 1254
981 assert (("ev_io_start called with negative fd", fd >= 0)); 1255 assert (("ev_io_start called with negative fd", fd >= 0));
982 1256
983 ev_start (EV_A_ (W)w, 1); 1257 ev_start (EV_A_ (W)w, 1);
984 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1258 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
985 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1259 wlist_add ((WL *)&anfds[fd].head, (WL)w);
986 1260
987 fd_change (EV_A_ fd); 1261 fd_change (EV_A_ fd);
988} 1262}
989 1263
… …
1004ev_timer_start (EV_P_ struct ev_timer *w) 1278ev_timer_start (EV_P_ struct ev_timer *w)
1005{ 1279{
1006 if (ev_is_active (w)) 1280 if (ev_is_active (w))
1007 return; 1281 return;
1008 1282
1009 w->at += mn_now; 1283 ((WT)w)->at += mn_now;
1010 1284
1011 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1285 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1012 1286
1013 ev_start (EV_A_ (W)w, ++timercnt); 1287 ev_start (EV_A_ (W)w, ++timercnt);
1014 array_needsize (timers, timermax, timercnt, ); 1288 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1015 timers [timercnt - 1] = w; 1289 timers [timercnt - 1] = w;
1016 upheap ((WT *)timers, timercnt - 1); 1290 upheap ((WT *)timers, timercnt - 1);
1291
1292 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1017} 1293}
1018 1294
1019void 1295void
1020ev_timer_stop (EV_P_ struct ev_timer *w) 1296ev_timer_stop (EV_P_ struct ev_timer *w)
1021{ 1297{
1022 ev_clear_pending (EV_A_ (W)w); 1298 ev_clear_pending (EV_A_ (W)w);
1023 if (!ev_is_active (w)) 1299 if (!ev_is_active (w))
1024 return; 1300 return;
1025 1301
1302 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1303
1026 if (w->active < timercnt--) 1304 if (((W)w)->active < timercnt--)
1027 { 1305 {
1028 timers [w->active - 1] = timers [timercnt]; 1306 timers [((W)w)->active - 1] = timers [timercnt];
1029 downheap ((WT *)timers, timercnt, w->active - 1); 1307 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1030 } 1308 }
1031 1309
1032 w->at = w->repeat; 1310 ((WT)w)->at = w->repeat;
1033 1311
1034 ev_stop (EV_A_ (W)w); 1312 ev_stop (EV_A_ (W)w);
1035} 1313}
1036 1314
1037void 1315void
… …
1039{ 1317{
1040 if (ev_is_active (w)) 1318 if (ev_is_active (w))
1041 { 1319 {
1042 if (w->repeat) 1320 if (w->repeat)
1043 { 1321 {
1044 w->at = mn_now + w->repeat; 1322 ((WT)w)->at = mn_now + w->repeat;
1045 downheap ((WT *)timers, timercnt, w->active - 1); 1323 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1046 } 1324 }
1047 else 1325 else
1048 ev_timer_stop (EV_A_ w); 1326 ev_timer_stop (EV_A_ w);
1049 } 1327 }
1050 else if (w->repeat) 1328 else if (w->repeat)
… …
1055ev_periodic_start (EV_P_ struct ev_periodic *w) 1333ev_periodic_start (EV_P_ struct ev_periodic *w)
1056{ 1334{
1057 if (ev_is_active (w)) 1335 if (ev_is_active (w))
1058 return; 1336 return;
1059 1337
1338 if (w->reschedule_cb)
1339 ((WT)w)->at = w->reschedule_cb (w, rt_now);
1340 else if (w->interval)
1341 {
1060 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1342 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 */ 1343 /* 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; 1344 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1345 }
1065 1346
1066 ev_start (EV_A_ (W)w, ++periodiccnt); 1347 ev_start (EV_A_ (W)w, ++periodiccnt);
1067 array_needsize (periodics, periodicmax, periodiccnt, ); 1348 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1068 periodics [periodiccnt - 1] = w; 1349 periodics [periodiccnt - 1] = w;
1069 upheap ((WT *)periodics, periodiccnt - 1); 1350 upheap ((WT *)periodics, periodiccnt - 1);
1351
1352 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1070} 1353}
1071 1354
1072void 1355void
1073ev_periodic_stop (EV_P_ struct ev_periodic *w) 1356ev_periodic_stop (EV_P_ struct ev_periodic *w)
1074{ 1357{
1075 ev_clear_pending (EV_A_ (W)w); 1358 ev_clear_pending (EV_A_ (W)w);
1076 if (!ev_is_active (w)) 1359 if (!ev_is_active (w))
1077 return; 1360 return;
1078 1361
1362 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1363
1079 if (w->active < periodiccnt--) 1364 if (((W)w)->active < periodiccnt--)
1080 { 1365 {
1081 periodics [w->active - 1] = periodics [periodiccnt]; 1366 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1082 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1367 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1083 } 1368 }
1084 1369
1370 ev_stop (EV_A_ (W)w);
1371}
1372
1373void
1374ev_periodic_again (EV_P_ struct ev_periodic *w)
1375{
1376 ev_periodic_stop (EV_A_ w);
1377 ev_periodic_start (EV_A_ w);
1378}
1379
1380void
1381ev_idle_start (EV_P_ struct ev_idle *w)
1382{
1383 if (ev_is_active (w))
1384 return;
1385
1386 ev_start (EV_A_ (W)w, ++idlecnt);
1387 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1388 idles [idlecnt - 1] = w;
1389}
1390
1391void
1392ev_idle_stop (EV_P_ struct ev_idle *w)
1393{
1394 ev_clear_pending (EV_A_ (W)w);
1395 if (ev_is_active (w))
1396 return;
1397
1398 idles [((W)w)->active - 1] = idles [--idlecnt];
1399 ev_stop (EV_A_ (W)w);
1400}
1401
1402void
1403ev_prepare_start (EV_P_ struct ev_prepare *w)
1404{
1405 if (ev_is_active (w))
1406 return;
1407
1408 ev_start (EV_A_ (W)w, ++preparecnt);
1409 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1410 prepares [preparecnt - 1] = w;
1411}
1412
1413void
1414ev_prepare_stop (EV_P_ struct ev_prepare *w)
1415{
1416 ev_clear_pending (EV_A_ (W)w);
1417 if (ev_is_active (w))
1418 return;
1419
1420 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1421 ev_stop (EV_A_ (W)w);
1422}
1423
1424void
1425ev_check_start (EV_P_ struct ev_check *w)
1426{
1427 if (ev_is_active (w))
1428 return;
1429
1430 ev_start (EV_A_ (W)w, ++checkcnt);
1431 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1432 checks [checkcnt - 1] = w;
1433}
1434
1435void
1436ev_check_stop (EV_P_ struct ev_check *w)
1437{
1438 ev_clear_pending (EV_A_ (W)w);
1439 if (ev_is_active (w))
1440 return;
1441
1442 checks [((W)w)->active - 1] = checks [--checkcnt];
1085 ev_stop (EV_A_ (W)w); 1443 ev_stop (EV_A_ (W)w);
1086} 1444}
1087 1445
1088#ifndef SA_RESTART 1446#ifndef SA_RESTART
1089# define SA_RESTART 0 1447# define SA_RESTART 0
1090#endif 1448#endif
1091 1449
1092void 1450void
1093ev_signal_start (EV_P_ struct ev_signal *w) 1451ev_signal_start (EV_P_ struct ev_signal *w)
1094{ 1452{
1453#if EV_MULTIPLICITY
1454 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1455#endif
1095 if (ev_is_active (w)) 1456 if (ev_is_active (w))
1096 return; 1457 return;
1097 1458
1098 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1459 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1099 1460
1100 ev_start (EV_A_ (W)w, 1); 1461 ev_start (EV_A_ (W)w, 1);
1101 array_needsize (signals, signalmax, w->signum, signals_init); 1462 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1102 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1463 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1103 1464
1104 if (!w->next) 1465 if (!((WL)w)->next)
1105 { 1466 {
1467#if WIN32
1468 signal (w->signum, sighandler);
1469#else
1106 struct sigaction sa; 1470 struct sigaction sa;
1107 sa.sa_handler = sighandler; 1471 sa.sa_handler = sighandler;
1108 sigfillset (&sa.sa_mask); 1472 sigfillset (&sa.sa_mask);
1109 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1473 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1110 sigaction (w->signum, &sa, 0); 1474 sigaction (w->signum, &sa, 0);
1475#endif
1111 } 1476 }
1112} 1477}
1113 1478
1114void 1479void
1115ev_signal_stop (EV_P_ struct ev_signal *w) 1480ev_signal_stop (EV_P_ struct ev_signal *w)
… …
1124 if (!signals [w->signum - 1].head) 1489 if (!signals [w->signum - 1].head)
1125 signal (w->signum, SIG_DFL); 1490 signal (w->signum, SIG_DFL);
1126} 1491}
1127 1492
1128void 1493void
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) 1494ev_child_start (EV_P_ struct ev_child *w)
1196{ 1495{
1496#if EV_MULTIPLICITY
1497 assert (("child watchers are only supported in the default loop", loop == default_loop));
1498#endif
1197 if (ev_is_active (w)) 1499 if (ev_is_active (w))
1198 return; 1500 return;
1199 1501
1200 ev_start (EV_A_ (W)w, 1); 1502 ev_start (EV_A_ (W)w, 1);
1201 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1503 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1228 void (*cb)(int revents, void *arg) = once->cb; 1530 void (*cb)(int revents, void *arg) = once->cb;
1229 void *arg = once->arg; 1531 void *arg = once->arg;
1230 1532
1231 ev_io_stop (EV_A_ &once->io); 1533 ev_io_stop (EV_A_ &once->io);
1232 ev_timer_stop (EV_A_ &once->to); 1534 ev_timer_stop (EV_A_ &once->to);
1233 free (once); 1535 ev_free (once);
1234 1536
1235 cb (revents, arg); 1537 cb (revents, arg);
1236} 1538}
1237 1539
1238static void 1540static void
… …
1248} 1550}
1249 1551
1250void 1552void
1251ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1553ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1252{ 1554{
1253 struct ev_once *once = malloc (sizeof (struct ev_once)); 1555 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1254 1556
1255 if (!once) 1557 if (!once)
1256 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1558 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1257 else 1559 else
1258 { 1560 {
… …
1273 ev_timer_start (EV_A_ &once->to); 1575 ev_timer_start (EV_A_ &once->to);
1274 } 1576 }
1275 } 1577 }
1276} 1578}
1277 1579
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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