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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 1.80 by root, Fri Nov 9 15:30:59 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
… …
132 int events; 215 int events;
133} ANPENDING; 216} ANPENDING;
134 217
135#if EV_MULTIPLICITY 218#if EV_MULTIPLICITY
136 219
137struct ev_loop 220 struct ev_loop
138{ 221 {
139# define VAR(name,decl) decl; 222 #define VAR(name,decl) decl;
140# include "ev_vars.h" 223 #include "ev_vars.h"
141};
142# undef VAR 224 #undef VAR
225 };
143# include "ev_wrap.h" 226 #include "ev_wrap.h"
227
228 struct ev_loop default_loop_struct;
229 static struct ev_loop *default_loop;
144 230
145#else 231#else
146 232
147# define VAR(name,decl) static decl; 233 #define VAR(name,decl) static decl;
148# include "ev_vars.h" 234 #include "ev_vars.h"
149# undef VAR 235 #undef VAR
236
237 static int default_loop;
150 238
151#endif 239#endif
152 240
153/*****************************************************************************/ 241/*****************************************************************************/
154 242
… …
185ev_now (EV_P) 273ev_now (EV_P)
186{ 274{
187 return rt_now; 275 return rt_now;
188} 276}
189 277
190#define array_roundsize(base,n) ((n) | 4 & ~3) 278#define array_roundsize(type,n) ((n) | 4 & ~3)
191 279
192#define array_needsize(base,cur,cnt,init) \ 280#define array_needsize(type,base,cur,cnt,init) \
193 if (expect_false ((cnt) > cur)) \ 281 if (expect_false ((cnt) > cur)) \
194 { \ 282 { \
195 int newcnt = cur; \ 283 int newcnt = cur; \
196 do \ 284 do \
197 { \ 285 { \
198 newcnt = array_roundsize (base, newcnt << 1); \ 286 newcnt = array_roundsize (type, newcnt << 1); \
199 } \ 287 } \
200 while ((cnt) > newcnt); \ 288 while ((cnt) > newcnt); \
201 \ 289 \
202 base = realloc (base, sizeof (*base) * (newcnt)); \ 290 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
203 init (base + cur, newcnt - cur); \ 291 init (base + cur, newcnt - cur); \
204 cur = newcnt; \ 292 cur = newcnt; \
205 } 293 }
294
295#define array_slim(type,stem) \
296 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
297 { \
298 stem ## max = array_roundsize (stem ## cnt >> 1); \
299 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
300 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
301 }
302
303/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
304/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
305#define array_free_microshit(stem) \
306 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
307
308#define array_free(stem, idx) \
309 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
206 310
207/*****************************************************************************/ 311/*****************************************************************************/
208 312
209static void 313static void
210anfds_init (ANFD *base, int count) 314anfds_init (ANFD *base, int count)
… …
217 321
218 ++base; 322 ++base;
219 } 323 }
220} 324}
221 325
222static void 326void
223event (EV_P_ W w, int events) 327ev_feed_event (EV_P_ void *w, int revents)
224{ 328{
329 W w_ = (W)w;
330
225 if (w->pending) 331 if (w_->pending)
226 { 332 {
227 pendings [ABSPRI (w)][w->pending - 1].events |= events; 333 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
228 return; 334 return;
229 } 335 }
230 336
231 w->pending = ++pendingcnt [ABSPRI (w)]; 337 w_->pending = ++pendingcnt [ABSPRI (w_)];
232 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); 338 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
233 pendings [ABSPRI (w)][w->pending - 1].w = w; 339 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234 pendings [ABSPRI (w)][w->pending - 1].events = events; 340 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235} 341}
236 342
237static void 343static void
238queue_events (EV_P_ W *events, int eventcnt, int type) 344queue_events (EV_P_ W *events, int eventcnt, int type)
239{ 345{
240 int i; 346 int i;
241 347
242 for (i = 0; i < eventcnt; ++i) 348 for (i = 0; i < eventcnt; ++i)
243 event (EV_A_ events [i], type); 349 ev_feed_event (EV_A_ events [i], type);
244} 350}
245 351
246static void 352inline void
247fd_event (EV_P_ int fd, int events) 353fd_event (EV_P_ int fd, int revents)
248{ 354{
249 ANFD *anfd = anfds + fd; 355 ANFD *anfd = anfds + fd;
250 struct ev_io *w; 356 struct ev_io *w;
251 357
252 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 358 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
253 { 359 {
254 int ev = w->events & events; 360 int ev = w->events & revents;
255 361
256 if (ev) 362 if (ev)
257 event (EV_A_ (W)w, ev); 363 ev_feed_event (EV_A_ (W)w, ev);
258 } 364 }
365}
366
367void
368ev_feed_fd_event (EV_P_ int fd, int revents)
369{
370 fd_event (EV_A_ fd, revents);
259} 371}
260 372
261/*****************************************************************************/ 373/*****************************************************************************/
262 374
263static void 375static void
… …
276 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 388 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
277 events |= w->events; 389 events |= w->events;
278 390
279 anfd->reify = 0; 391 anfd->reify = 0;
280 392
281 if (anfd->events != events)
282 {
283 method_modify (EV_A_ fd, anfd->events, events); 393 method_modify (EV_A_ fd, anfd->events, events);
284 anfd->events = events; 394 anfd->events = events;
285 }
286 } 395 }
287 396
288 fdchangecnt = 0; 397 fdchangecnt = 0;
289} 398}
290 399
291static void 400static void
292fd_change (EV_P_ int fd) 401fd_change (EV_P_ int fd)
293{ 402{
294 if (anfds [fd].reify || fdchangecnt < 0) 403 if (anfds [fd].reify)
295 return; 404 return;
296 405
297 anfds [fd].reify = 1; 406 anfds [fd].reify = 1;
298 407
299 ++fdchangecnt; 408 ++fdchangecnt;
300 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 409 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
301 fdchanges [fdchangecnt - 1] = fd; 410 fdchanges [fdchangecnt - 1] = fd;
302} 411}
303 412
304static void 413static void
305fd_kill (EV_P_ int fd) 414fd_kill (EV_P_ int fd)
… …
307 struct ev_io *w; 416 struct ev_io *w;
308 417
309 while ((w = (struct ev_io *)anfds [fd].head)) 418 while ((w = (struct ev_io *)anfds [fd].head))
310 { 419 {
311 ev_io_stop (EV_A_ w); 420 ev_io_stop (EV_A_ w);
312 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 421 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
313 } 422 }
423}
424
425static int
426fd_valid (int fd)
427{
428#ifdef WIN32
429 return !!win32_get_osfhandle (fd);
430#else
431 return fcntl (fd, F_GETFD) != -1;
432#endif
314} 433}
315 434
316/* called on EBADF to verify fds */ 435/* called on EBADF to verify fds */
317static void 436static void
318fd_ebadf (EV_P) 437fd_ebadf (EV_P)
319{ 438{
320 int fd; 439 int fd;
321 440
322 for (fd = 0; fd < anfdmax; ++fd) 441 for (fd = 0; fd < anfdmax; ++fd)
323 if (anfds [fd].events) 442 if (anfds [fd].events)
324 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 443 if (!fd_valid (fd) == -1 && errno == EBADF)
325 fd_kill (EV_A_ fd); 444 fd_kill (EV_A_ fd);
326} 445}
327 446
328/* called on ENOMEM in select/poll to kill some fds and retry */ 447/* called on ENOMEM in select/poll to kill some fds and retry */
329static void 448static void
330fd_enomem (EV_P) 449fd_enomem (EV_P)
331{ 450{
332 int fd = anfdmax; 451 int fd;
333 452
334 while (fd--) 453 for (fd = anfdmax; fd--; )
335 if (anfds [fd].events) 454 if (anfds [fd].events)
336 { 455 {
337 close (fd);
338 fd_kill (EV_A_ fd); 456 fd_kill (EV_A_ fd);
339 return; 457 return;
340 } 458 }
341} 459}
342 460
461/* usually called after fork if method needs to re-arm all fds from scratch */
462static void
463fd_rearm_all (EV_P)
464{
465 int fd;
466
467 /* this should be highly optimised to not do anything but set a flag */
468 for (fd = 0; fd < anfdmax; ++fd)
469 if (anfds [fd].events)
470 {
471 anfds [fd].events = 0;
472 fd_change (EV_A_ fd);
473 }
474}
475
343/*****************************************************************************/ 476/*****************************************************************************/
344 477
345static void 478static void
346upheap (WT *heap, int k) 479upheap (WT *heap, int k)
347{ 480{
348 WT w = heap [k]; 481 WT w = heap [k];
349 482
350 while (k && heap [k >> 1]->at > w->at) 483 while (k && heap [k >> 1]->at > w->at)
351 { 484 {
352 heap [k] = heap [k >> 1]; 485 heap [k] = heap [k >> 1];
353 heap [k]->active = k + 1; 486 ((W)heap [k])->active = k + 1;
354 k >>= 1; 487 k >>= 1;
355 } 488 }
356 489
357 heap [k] = w; 490 heap [k] = w;
358 heap [k]->active = k + 1; 491 ((W)heap [k])->active = k + 1;
359 492
360} 493}
361 494
362static void 495static void
363downheap (WT *heap, int N, int k) 496downheap (WT *heap, int N, int k)
… …
373 506
374 if (w->at <= heap [j]->at) 507 if (w->at <= heap [j]->at)
375 break; 508 break;
376 509
377 heap [k] = heap [j]; 510 heap [k] = heap [j];
378 heap [k]->active = k + 1; 511 ((W)heap [k])->active = k + 1;
379 k = j; 512 k = j;
380 } 513 }
381 514
382 heap [k] = w; 515 heap [k] = w;
383 heap [k]->active = k + 1; 516 ((W)heap [k])->active = k + 1;
384} 517}
385 518
386/*****************************************************************************/ 519/*****************************************************************************/
387 520
388typedef struct 521typedef struct
389{ 522{
390 struct ev_watcher_list *head; 523 WL head;
391 sig_atomic_t volatile gotsig; 524 sig_atomic_t volatile gotsig;
392} ANSIG; 525} ANSIG;
393 526
394static ANSIG *signals; 527static ANSIG *signals;
395static int signalmax; 528static int signalmax;
396 529
397static int sigpipe [2]; 530static int sigpipe [2];
398static sig_atomic_t volatile gotsig; 531static sig_atomic_t volatile gotsig;
532static struct ev_io sigev;
399 533
400static void 534static void
401signals_init (ANSIG *base, int count) 535signals_init (ANSIG *base, int count)
402{ 536{
403 while (count--) 537 while (count--)
… …
410} 544}
411 545
412static void 546static void
413sighandler (int signum) 547sighandler (int signum)
414{ 548{
549#if WIN32
550 signal (signum, sighandler);
551#endif
552
415 signals [signum - 1].gotsig = 1; 553 signals [signum - 1].gotsig = 1;
416 554
417 if (!gotsig) 555 if (!gotsig)
418 { 556 {
419 int old_errno = errno; 557 int old_errno = errno;
420 gotsig = 1; 558 gotsig = 1;
559#ifdef WIN32
560 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
561#else
421 write (sigpipe [1], &signum, 1); 562 write (sigpipe [1], &signum, 1);
563#endif
422 errno = old_errno; 564 errno = old_errno;
423 } 565 }
424} 566}
425 567
568void
569ev_feed_signal_event (EV_P_ int signum)
570{
571 WL w;
572
573#if EV_MULTIPLICITY
574 assert (("feeding signal events is only supported in the default loop", loop == default_loop));
575#endif
576
577 --signum;
578
579 if (signum < 0 || signum >= signalmax)
580 return;
581
582 signals [signum].gotsig = 0;
583
584 for (w = signals [signum].head; w; w = w->next)
585 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
586}
587
426static void 588static void
427sigcb (EV_P_ struct ev_io *iow, int revents) 589sigcb (EV_P_ struct ev_io *iow, int revents)
428{ 590{
429 struct ev_watcher_list *w;
430 int signum; 591 int signum;
431 592
593#ifdef WIN32
594 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
595#else
432 read (sigpipe [0], &revents, 1); 596 read (sigpipe [0], &revents, 1);
597#endif
433 gotsig = 0; 598 gotsig = 0;
434 599
435 for (signum = signalmax; signum--; ) 600 for (signum = signalmax; signum--; )
436 if (signals [signum].gotsig) 601 if (signals [signum].gotsig)
437 { 602 ev_feed_signal_event (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} 603}
444 604
445static void 605static void
446siginit (EV_P) 606siginit (EV_P)
447{ 607{
… …
459 ev_unref (EV_A); /* child watcher should not keep loop alive */ 619 ev_unref (EV_A); /* child watcher should not keep loop alive */
460} 620}
461 621
462/*****************************************************************************/ 622/*****************************************************************************/
463 623
624static struct ev_child *childs [PID_HASHSIZE];
625
464#ifndef WIN32 626#ifndef WIN32
627
628static struct ev_signal childev;
465 629
466#ifndef WCONTINUED 630#ifndef WCONTINUED
467# define WCONTINUED 0 631# define WCONTINUED 0
468#endif 632#endif
469 633
… …
473 struct ev_child *w; 637 struct ev_child *w;
474 638
475 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 639 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) 640 if (w->pid == pid || !w->pid)
477 { 641 {
478 w->priority = sw->priority; /* need to do it *now* */ 642 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
479 w->rpid = pid; 643 w->rpid = pid;
480 w->rstatus = status; 644 w->rstatus = status;
481 event (EV_A_ (W)w, EV_CHILD); 645 ev_feed_event (EV_A_ (W)w, EV_CHILD);
482 } 646 }
483} 647}
484 648
485static void 649static void
486childcb (EV_P_ struct ev_signal *sw, int revents) 650childcb (EV_P_ struct ev_signal *sw, int revents)
… …
488 int pid, status; 652 int pid, status;
489 653
490 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 654 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
491 { 655 {
492 /* make sure we are called again until all childs have been reaped */ 656 /* make sure we are called again until all childs have been reaped */
493 event (EV_A_ (W)sw, EV_SIGNAL); 657 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
494 658
495 child_reap (EV_A_ sw, pid, pid, status); 659 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 */ 660 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
497 } 661 }
498} 662}
… …
505# include "ev_kqueue.c" 669# include "ev_kqueue.c"
506#endif 670#endif
507#if EV_USE_EPOLL 671#if EV_USE_EPOLL
508# include "ev_epoll.c" 672# include "ev_epoll.c"
509#endif 673#endif
510#if EV_USEV_POLL 674#if EV_USE_POLL
511# include "ev_poll.c" 675# include "ev_poll.c"
512#endif 676#endif
513#if EV_USE_SELECT 677#if EV_USE_SELECT
514# include "ev_select.c" 678# include "ev_select.c"
515#endif 679#endif
… …
542ev_method (EV_P) 706ev_method (EV_P)
543{ 707{
544 return method; 708 return method;
545} 709}
546 710
547inline int 711static void
548loop_init (EV_P_ int methods) 712loop_init (EV_P_ int methods)
549{ 713{
550 if (!method) 714 if (!method)
551 { 715 {
552#if EV_USE_MONOTONIC 716#if EV_USE_MONOTONIC
… …
560 rt_now = ev_time (); 724 rt_now = ev_time ();
561 mn_now = get_clock (); 725 mn_now = get_clock ();
562 now_floor = mn_now; 726 now_floor = mn_now;
563 rtmn_diff = rt_now - mn_now; 727 rtmn_diff = rt_now - mn_now;
564 728
565 if (pipe (sigpipe))
566 return 0;
567
568 if (methods == EVMETHOD_AUTO) 729 if (methods == EVMETHOD_AUTO)
569 if (!enable_secure () && getenv ("LIBmethodS")) 730 if (!enable_secure () && getenv ("LIBEV_METHODS"))
570 methods = atoi (getenv ("LIBmethodS")); 731 methods = atoi (getenv ("LIBEV_METHODS"));
571 else 732 else
572 methods = EVMETHOD_ANY; 733 methods = EVMETHOD_ANY;
573 734
574 method = 0; 735 method = 0;
736#if EV_USE_WIN32
737 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
738#endif
575#if EV_USE_KQUEUE 739#if EV_USE_KQUEUE
576 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 740 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
577#endif 741#endif
578#if EV_USE_EPOLL 742#if EV_USE_EPOLL
579 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 743 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
580#endif 744#endif
581#if EV_USEV_POLL 745#if EV_USE_POLL
582 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 746 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
583#endif 747#endif
584#if EV_USE_SELECT 748#if EV_USE_SELECT
585 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 749 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
586#endif 750#endif
587 751
752 ev_watcher_init (&sigev, sigcb);
753 ev_set_priority (&sigev, EV_MAXPRI);
754 }
755}
756
757void
758loop_destroy (EV_P)
759{
760 int i;
761
762#if EV_USE_WIN32
763 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
764#endif
765#if EV_USE_KQUEUE
766 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
767#endif
768#if EV_USE_EPOLL
769 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
770#endif
771#if EV_USE_POLL
772 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
773#endif
774#if EV_USE_SELECT
775 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
776#endif
777
778 for (i = NUMPRI; i--; )
779 array_free (pending, [i]);
780
781 /* have to use the microsoft-never-gets-it-right macro */
782 array_free_microshit (fdchange);
783 array_free_microshit (timer);
784 array_free_microshit (periodic);
785 array_free_microshit (idle);
786 array_free_microshit (prepare);
787 array_free_microshit (check);
788
789 method = 0;
790}
791
792static void
793loop_fork (EV_P)
794{
795#if EV_USE_EPOLL
796 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
797#endif
798#if EV_USE_KQUEUE
799 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
800#endif
801
802 if (ev_is_active (&sigev))
803 {
804 /* default loop */
805
806 ev_ref (EV_A);
807 ev_io_stop (EV_A_ &sigev);
808 close (sigpipe [0]);
809 close (sigpipe [1]);
810
811 while (pipe (sigpipe))
812 syserr ("(libev) error creating pipe");
813
814 siginit (EV_A);
815 }
816
817 postfork = 0;
818}
819
820#if EV_MULTIPLICITY
821struct ev_loop *
822ev_loop_new (int methods)
823{
824 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
825
826 memset (loop, 0, sizeof (struct ev_loop));
827
828 loop_init (EV_A_ methods);
829
830 if (ev_method (EV_A))
831 return loop;
832
833 return 0;
834}
835
836void
837ev_loop_destroy (EV_P)
838{
839 loop_destroy (EV_A);
840 ev_free (loop);
841}
842
843void
844ev_loop_fork (EV_P)
845{
846 postfork = 1;
847}
848
849#endif
850
851#if EV_MULTIPLICITY
852struct ev_loop *
853#else
854int
855#endif
856ev_default_loop (int methods)
857{
858 if (sigpipe [0] == sigpipe [1])
859 if (pipe (sigpipe))
860 return 0;
861
862 if (!default_loop)
863 {
864#if EV_MULTIPLICITY
865 struct ev_loop *loop = default_loop = &default_loop_struct;
866#else
867 default_loop = 1;
868#endif
869
870 loop_init (EV_A_ methods);
871
588 if (method) 872 if (ev_method (EV_A))
589 { 873 {
590 ev_watcher_init (&sigev, sigcb);
591 ev_set_priority (&sigev, EV_MAXPRI);
592 siginit (EV_A); 874 siginit (EV_A);
593 875
594#ifndef WIN32 876#ifndef WIN32
595 ev_signal_init (&childev, childcb, SIGCHLD); 877 ev_signal_init (&childev, childcb, SIGCHLD);
596 ev_set_priority (&childev, EV_MAXPRI); 878 ev_set_priority (&childev, EV_MAXPRI);
597 ev_signal_start (EV_A_ &childev); 879 ev_signal_start (EV_A_ &childev);
598 ev_unref (EV_A); /* child watcher should not keep loop alive */ 880 ev_unref (EV_A); /* child watcher should not keep loop alive */
599#endif 881#endif
600 } 882 }
883 else
884 default_loop = 0;
601 } 885 }
602 886
603 return method; 887 return default_loop;
604} 888}
605 889
890void
891ev_default_destroy (void)
892{
606#if EV_MULTIPLICITY 893#if EV_MULTIPLICITY
894 struct ev_loop *loop = default_loop;
895#endif
607 896
608struct ev_loop * 897#ifndef WIN32
609ev_loop_new (int methods) 898 ev_ref (EV_A); /* child watcher */
610{ 899 ev_signal_stop (EV_A_ &childev);
611 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); 900#endif
612 901
613 if (loop_init (EV_A_ methods)) 902 ev_ref (EV_A); /* signal watcher */
903 ev_io_stop (EV_A_ &sigev);
904
905 close (sigpipe [0]); sigpipe [0] = 0;
906 close (sigpipe [1]); sigpipe [1] = 0;
907
908 loop_destroy (EV_A);
909}
910
911void
912ev_default_fork (void)
913{
914#if EV_MULTIPLICITY
915 struct ev_loop *loop = default_loop;
916#endif
917
918 if (method)
919 postfork = 1;
920}
921
922/*****************************************************************************/
923
924static int
925any_pending (EV_P)
926{
927 int pri;
928
929 for (pri = NUMPRI; pri--; )
930 if (pendingcnt [pri])
614 return loop; 931 return 1;
615
616 ev_loop_delete (loop);
617 932
618 return 0; 933 return 0;
619} 934}
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/*****************************************************************************/
671 935
672static void 936static void
673call_pending (EV_P) 937call_pending (EV_P)
674{ 938{
675 int pri; 939 int pri;
… …
688} 952}
689 953
690static void 954static void
691timers_reify (EV_P) 955timers_reify (EV_P)
692{ 956{
693 while (timercnt && timers [0]->at <= mn_now) 957 while (timercnt && ((WT)timers [0])->at <= mn_now)
694 { 958 {
695 struct ev_timer *w = timers [0]; 959 struct ev_timer *w = timers [0];
960
961 assert (("inactive timer on timer heap detected", ev_is_active (w)));
696 962
697 /* first reschedule or stop timer */ 963 /* first reschedule or stop timer */
698 if (w->repeat) 964 if (w->repeat)
699 { 965 {
700 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 966 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
701 w->at = mn_now + w->repeat; 967 ((WT)w)->at = mn_now + w->repeat;
702 downheap ((WT *)timers, timercnt, 0); 968 downheap ((WT *)timers, timercnt, 0);
703 } 969 }
704 else 970 else
705 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 971 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
706 972
707 event (EV_A_ (W)w, EV_TIMEOUT); 973 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
708 } 974 }
709} 975}
710 976
711static void 977static void
712periodics_reify (EV_P) 978periodics_reify (EV_P)
713{ 979{
714 while (periodiccnt && periodics [0]->at <= rt_now) 980 while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
715 { 981 {
716 struct ev_periodic *w = periodics [0]; 982 struct ev_periodic *w = periodics [0];
717 983
984 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
985
718 /* first reschedule or stop timer */ 986 /* first reschedule or stop timer */
719 if (w->interval) 987 if (w->reschedule_cb)
720 { 988 {
989 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
990
991 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
992 downheap ((WT *)periodics, periodiccnt, 0);
993 }
994 else if (w->interval)
995 {
721 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 996 ((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)); 997 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
723 downheap ((WT *)periodics, periodiccnt, 0); 998 downheap ((WT *)periodics, periodiccnt, 0);
724 } 999 }
725 else 1000 else
726 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1001 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
727 1002
728 event (EV_A_ (W)w, EV_PERIODIC); 1003 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
729 } 1004 }
730} 1005}
731 1006
732static void 1007static void
733periodics_reschedule (EV_P) 1008periodics_reschedule (EV_P)
… …
737 /* adjust periodics after time jump */ 1012 /* adjust periodics after time jump */
738 for (i = 0; i < periodiccnt; ++i) 1013 for (i = 0; i < periodiccnt; ++i)
739 { 1014 {
740 struct ev_periodic *w = periodics [i]; 1015 struct ev_periodic *w = periodics [i];
741 1016
1017 if (w->reschedule_cb)
1018 ((WT)w)->at = w->reschedule_cb (w, rt_now);
742 if (w->interval) 1019 else if (w->interval)
743 {
744 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 1020 ((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 } 1021 }
1022
1023 /* now rebuild the heap */
1024 for (i = periodiccnt >> 1; i--; )
1025 downheap ((WT *)periodics, periodiccnt, i);
755} 1026}
756 1027
757inline int 1028inline int
758time_update_monotonic (EV_P) 1029time_update_monotonic (EV_P)
759{ 1030{
… …
810 { 1081 {
811 periodics_reschedule (EV_A); 1082 periodics_reschedule (EV_A);
812 1083
813 /* adjust timers. this is easy, as the offset is the same for all */ 1084 /* adjust timers. this is easy, as the offset is the same for all */
814 for (i = 0; i < timercnt; ++i) 1085 for (i = 0; i < timercnt; ++i)
815 timers [i]->at += rt_now - mn_now; 1086 ((WT)timers [i])->at += rt_now - mn_now;
816 } 1087 }
817 1088
818 mn_now = rt_now; 1089 mn_now = rt_now;
819 } 1090 }
820} 1091}
… …
846 { 1117 {
847 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1118 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
848 call_pending (EV_A); 1119 call_pending (EV_A);
849 } 1120 }
850 1121
1122 /* we might have forked, so reify kernel state if necessary */
1123 if (expect_false (postfork))
1124 loop_fork (EV_A);
1125
851 /* update fd-related kernel structures */ 1126 /* update fd-related kernel structures */
852 fd_reify (EV_A); 1127 fd_reify (EV_A);
853 1128
854 /* calculate blocking time */ 1129 /* calculate blocking time */
855 1130
856 /* we only need this for !monotonic clockor timers, but as we basically 1131 /* we only need this for !monotonic clock or timers, but as we basically
857 always have timers, we just calculate it always */ 1132 always have timers, we just calculate it always */
858#if EV_USE_MONOTONIC 1133#if EV_USE_MONOTONIC
859 if (expect_true (have_monotonic)) 1134 if (expect_true (have_monotonic))
860 time_update_monotonic (EV_A); 1135 time_update_monotonic (EV_A);
861 else 1136 else
… …
871 { 1146 {
872 block = MAX_BLOCKTIME; 1147 block = MAX_BLOCKTIME;
873 1148
874 if (timercnt) 1149 if (timercnt)
875 { 1150 {
876 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1151 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
877 if (block > to) block = to; 1152 if (block > to) block = to;
878 } 1153 }
879 1154
880 if (periodiccnt) 1155 if (periodiccnt)
881 { 1156 {
882 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1157 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
883 if (block > to) block = to; 1158 if (block > to) block = to;
884 } 1159 }
885 1160
886 if (block < 0.) block = 0.; 1161 if (block < 0.) block = 0.;
887 } 1162 }
… …
894 /* queue pending timers and reschedule them */ 1169 /* queue pending timers and reschedule them */
895 timers_reify (EV_A); /* relative timers called last */ 1170 timers_reify (EV_A); /* relative timers called last */
896 periodics_reify (EV_A); /* absolute timers called first */ 1171 periodics_reify (EV_A); /* absolute timers called first */
897 1172
898 /* queue idle watchers unless io or timers are pending */ 1173 /* queue idle watchers unless io or timers are pending */
899 if (!pendingcnt) 1174 if (idlecnt && !any_pending (EV_A))
900 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1175 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
901 1176
902 /* queue check watchers, to be executed first */ 1177 /* queue check watchers, to be executed first */
903 if (checkcnt) 1178 if (checkcnt)
904 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1179 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
… …
979 return; 1254 return;
980 1255
981 assert (("ev_io_start called with negative fd", fd >= 0)); 1256 assert (("ev_io_start called with negative fd", fd >= 0));
982 1257
983 ev_start (EV_A_ (W)w, 1); 1258 ev_start (EV_A_ (W)w, 1);
984 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1259 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
985 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1260 wlist_add ((WL *)&anfds[fd].head, (WL)w);
986 1261
987 fd_change (EV_A_ fd); 1262 fd_change (EV_A_ fd);
988} 1263}
989 1264
… …
1004ev_timer_start (EV_P_ struct ev_timer *w) 1279ev_timer_start (EV_P_ struct ev_timer *w)
1005{ 1280{
1006 if (ev_is_active (w)) 1281 if (ev_is_active (w))
1007 return; 1282 return;
1008 1283
1009 w->at += mn_now; 1284 ((WT)w)->at += mn_now;
1010 1285
1011 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1286 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1012 1287
1013 ev_start (EV_A_ (W)w, ++timercnt); 1288 ev_start (EV_A_ (W)w, ++timercnt);
1014 array_needsize (timers, timermax, timercnt, ); 1289 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1015 timers [timercnt - 1] = w; 1290 timers [timercnt - 1] = w;
1016 upheap ((WT *)timers, timercnt - 1); 1291 upheap ((WT *)timers, timercnt - 1);
1292
1293 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1017} 1294}
1018 1295
1019void 1296void
1020ev_timer_stop (EV_P_ struct ev_timer *w) 1297ev_timer_stop (EV_P_ struct ev_timer *w)
1021{ 1298{
1022 ev_clear_pending (EV_A_ (W)w); 1299 ev_clear_pending (EV_A_ (W)w);
1023 if (!ev_is_active (w)) 1300 if (!ev_is_active (w))
1024 return; 1301 return;
1025 1302
1303 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1304
1026 if (w->active < timercnt--) 1305 if (((W)w)->active < timercnt--)
1027 { 1306 {
1028 timers [w->active - 1] = timers [timercnt]; 1307 timers [((W)w)->active - 1] = timers [timercnt];
1029 downheap ((WT *)timers, timercnt, w->active - 1); 1308 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1030 } 1309 }
1031 1310
1032 w->at = w->repeat; 1311 ((WT)w)->at = w->repeat;
1033 1312
1034 ev_stop (EV_A_ (W)w); 1313 ev_stop (EV_A_ (W)w);
1035} 1314}
1036 1315
1037void 1316void
… …
1039{ 1318{
1040 if (ev_is_active (w)) 1319 if (ev_is_active (w))
1041 { 1320 {
1042 if (w->repeat) 1321 if (w->repeat)
1043 { 1322 {
1044 w->at = mn_now + w->repeat; 1323 ((WT)w)->at = mn_now + w->repeat;
1045 downheap ((WT *)timers, timercnt, w->active - 1); 1324 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1046 } 1325 }
1047 else 1326 else
1048 ev_timer_stop (EV_A_ w); 1327 ev_timer_stop (EV_A_ w);
1049 } 1328 }
1050 else if (w->repeat) 1329 else if (w->repeat)
… …
1055ev_periodic_start (EV_P_ struct ev_periodic *w) 1334ev_periodic_start (EV_P_ struct ev_periodic *w)
1056{ 1335{
1057 if (ev_is_active (w)) 1336 if (ev_is_active (w))
1058 return; 1337 return;
1059 1338
1339 if (w->reschedule_cb)
1340 ((WT)w)->at = w->reschedule_cb (w, rt_now);
1341 else if (w->interval)
1342 {
1060 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1343 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 */ 1344 /* 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; 1345 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1346 }
1065 1347
1066 ev_start (EV_A_ (W)w, ++periodiccnt); 1348 ev_start (EV_A_ (W)w, ++periodiccnt);
1067 array_needsize (periodics, periodicmax, periodiccnt, ); 1349 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1068 periodics [periodiccnt - 1] = w; 1350 periodics [periodiccnt - 1] = w;
1069 upheap ((WT *)periodics, periodiccnt - 1); 1351 upheap ((WT *)periodics, periodiccnt - 1);
1352
1353 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1070} 1354}
1071 1355
1072void 1356void
1073ev_periodic_stop (EV_P_ struct ev_periodic *w) 1357ev_periodic_stop (EV_P_ struct ev_periodic *w)
1074{ 1358{
1075 ev_clear_pending (EV_A_ (W)w); 1359 ev_clear_pending (EV_A_ (W)w);
1076 if (!ev_is_active (w)) 1360 if (!ev_is_active (w))
1077 return; 1361 return;
1078 1362
1363 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1364
1079 if (w->active < periodiccnt--) 1365 if (((W)w)->active < periodiccnt--)
1080 { 1366 {
1081 periodics [w->active - 1] = periodics [periodiccnt]; 1367 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1082 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1368 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1083 } 1369 }
1084 1370
1371 ev_stop (EV_A_ (W)w);
1372}
1373
1374void
1375ev_periodic_again (EV_P_ struct ev_periodic *w)
1376{
1377 ev_periodic_stop (EV_A_ w);
1378 ev_periodic_start (EV_A_ w);
1379}
1380
1381void
1382ev_idle_start (EV_P_ struct ev_idle *w)
1383{
1384 if (ev_is_active (w))
1385 return;
1386
1387 ev_start (EV_A_ (W)w, ++idlecnt);
1388 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1389 idles [idlecnt - 1] = w;
1390}
1391
1392void
1393ev_idle_stop (EV_P_ struct ev_idle *w)
1394{
1395 ev_clear_pending (EV_A_ (W)w);
1396 if (ev_is_active (w))
1397 return;
1398
1399 idles [((W)w)->active - 1] = idles [--idlecnt];
1400 ev_stop (EV_A_ (W)w);
1401}
1402
1403void
1404ev_prepare_start (EV_P_ struct ev_prepare *w)
1405{
1406 if (ev_is_active (w))
1407 return;
1408
1409 ev_start (EV_A_ (W)w, ++preparecnt);
1410 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1411 prepares [preparecnt - 1] = w;
1412}
1413
1414void
1415ev_prepare_stop (EV_P_ struct ev_prepare *w)
1416{
1417 ev_clear_pending (EV_A_ (W)w);
1418 if (ev_is_active (w))
1419 return;
1420
1421 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1422 ev_stop (EV_A_ (W)w);
1423}
1424
1425void
1426ev_check_start (EV_P_ struct ev_check *w)
1427{
1428 if (ev_is_active (w))
1429 return;
1430
1431 ev_start (EV_A_ (W)w, ++checkcnt);
1432 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1433 checks [checkcnt - 1] = w;
1434}
1435
1436void
1437ev_check_stop (EV_P_ struct ev_check *w)
1438{
1439 ev_clear_pending (EV_A_ (W)w);
1440 if (ev_is_active (w))
1441 return;
1442
1443 checks [((W)w)->active - 1] = checks [--checkcnt];
1085 ev_stop (EV_A_ (W)w); 1444 ev_stop (EV_A_ (W)w);
1086} 1445}
1087 1446
1088#ifndef SA_RESTART 1447#ifndef SA_RESTART
1089# define SA_RESTART 0 1448# define SA_RESTART 0
1090#endif 1449#endif
1091 1450
1092void 1451void
1093ev_signal_start (EV_P_ struct ev_signal *w) 1452ev_signal_start (EV_P_ struct ev_signal *w)
1094{ 1453{
1454#if EV_MULTIPLICITY
1455 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1456#endif
1095 if (ev_is_active (w)) 1457 if (ev_is_active (w))
1096 return; 1458 return;
1097 1459
1098 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1460 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1099 1461
1100 ev_start (EV_A_ (W)w, 1); 1462 ev_start (EV_A_ (W)w, 1);
1101 array_needsize (signals, signalmax, w->signum, signals_init); 1463 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1102 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1464 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1103 1465
1104 if (!w->next) 1466 if (!((WL)w)->next)
1105 { 1467 {
1468#if WIN32
1469 signal (w->signum, sighandler);
1470#else
1106 struct sigaction sa; 1471 struct sigaction sa;
1107 sa.sa_handler = sighandler; 1472 sa.sa_handler = sighandler;
1108 sigfillset (&sa.sa_mask); 1473 sigfillset (&sa.sa_mask);
1109 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1474 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1110 sigaction (w->signum, &sa, 0); 1475 sigaction (w->signum, &sa, 0);
1476#endif
1111 } 1477 }
1112} 1478}
1113 1479
1114void 1480void
1115ev_signal_stop (EV_P_ struct ev_signal *w) 1481ev_signal_stop (EV_P_ struct ev_signal *w)
… …
1124 if (!signals [w->signum - 1].head) 1490 if (!signals [w->signum - 1].head)
1125 signal (w->signum, SIG_DFL); 1491 signal (w->signum, SIG_DFL);
1126} 1492}
1127 1493
1128void 1494void
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) 1495ev_child_start (EV_P_ struct ev_child *w)
1196{ 1496{
1497#if EV_MULTIPLICITY
1498 assert (("child watchers are only supported in the default loop", loop == default_loop));
1499#endif
1197 if (ev_is_active (w)) 1500 if (ev_is_active (w))
1198 return; 1501 return;
1199 1502
1200 ev_start (EV_A_ (W)w, 1); 1503 ev_start (EV_A_ (W)w, 1);
1201 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1504 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1228 void (*cb)(int revents, void *arg) = once->cb; 1531 void (*cb)(int revents, void *arg) = once->cb;
1229 void *arg = once->arg; 1532 void *arg = once->arg;
1230 1533
1231 ev_io_stop (EV_A_ &once->io); 1534 ev_io_stop (EV_A_ &once->io);
1232 ev_timer_stop (EV_A_ &once->to); 1535 ev_timer_stop (EV_A_ &once->to);
1233 free (once); 1536 ev_free (once);
1234 1537
1235 cb (revents, arg); 1538 cb (revents, arg);
1236} 1539}
1237 1540
1238static void 1541static void
… …
1248} 1551}
1249 1552
1250void 1553void
1251ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1554ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1252{ 1555{
1253 struct ev_once *once = malloc (sizeof (struct ev_once)); 1556 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1254 1557
1255 if (!once) 1558 if (!once)
1256 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1559 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1257 else 1560 else
1258 { 1561 {
… …
1273 ev_timer_start (EV_A_ &once->to); 1576 ev_timer_start (EV_A_ &once->to);
1274 } 1577 }
1275 } 1578 }
1276} 1579}
1277 1580
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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