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Comparing libev/ev.c (file contents):
Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC vs.
Revision 1.72 by root, Tue Nov 6 16:09:37 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
113 146
114typedef struct ev_watcher *W; 147typedef struct ev_watcher *W;
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
151static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152
153#if WIN32
154/* note: the comment below could not be substantiated, but what would I care */
155/* MSDN says this is required to handle SIGFPE */
156volatile double SIGFPE_REQ = 0.0f;
157
158static int
159ev_socketpair_tcp (int filedes [2])
160{
161 struct sockaddr_in addr = { 0 };
162 int addr_size = sizeof (addr);
163 SOCKET listener;
164 SOCKET sock [2] = { -1, -1 };
165
166 if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
167 return -1;
168
169 addr.sin_family = AF_INET;
170 addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
171 addr.sin_port = 0;
172
173 if (bind (listener, (struct sockaddr *)&addr, addr_size))
174 goto fail;
175
176 if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
177 goto fail;
178
179 if (listen (listener, 1))
180 goto fail;
181
182 if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
183 goto fail;
184
185 if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
186 goto fail;
187
188 if ((sock[1] = accept (listener, 0, 0)) < 0)
189 goto fail;
190
191 closesocket (listener);
192
193 filedes [0] = sock [0];
194 filedes [1] = sock [1];
195
196 return 0;
197
198fail:
199 closesocket (listener);
200
201 if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
202 if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
203
204 return -1;
205}
206
207# define ev_pipe(filedes) ev_socketpair_tcp (filedes)
208#else
209# define ev_pipe(filedes) pipe (filedes)
210#endif
211
118/*****************************************************************************/ 212/*****************************************************************************/
119 213
214static void (*syserr_cb)(const char *msg);
215
216void ev_set_syserr_cb (void (*cb)(const char *msg))
217{
218 syserr_cb = cb;
219}
220
221static void
222syserr (const char *msg)
223{
224 if (!msg)
225 msg = "(libev) system error";
226
227 if (syserr_cb)
228 syserr_cb (msg);
229 else
230 {
231 perror (msg);
232 abort ();
233 }
234}
235
236static void *(*alloc)(void *ptr, long size);
237
238void ev_set_allocator (void *(*cb)(void *ptr, long size))
239{
240 alloc = cb;
241}
242
243static void *
244ev_realloc (void *ptr, long size)
245{
246 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
247
248 if (!ptr && size)
249 {
250 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
251 abort ();
252 }
253
254 return ptr;
255}
256
257#define ev_malloc(size) ev_realloc (0, (size))
258#define ev_free(ptr) ev_realloc ((ptr), 0)
259
260/*****************************************************************************/
261
120typedef struct 262typedef struct
121{ 263{
122 struct ev_watcher_list *head; 264 WL head;
123 unsigned char events; 265 unsigned char events;
124 unsigned char reify; 266 unsigned char reify;
125} ANFD; 267} ANFD;
126 268
127typedef struct 269typedef struct
128{ 270{
129 W w; 271 W w;
130 int events; 272 int events;
131} ANPENDING; 273} ANPENDING;
132 274
133#ifdef EV_MULTIPLICITY 275#if EV_MULTIPLICITY
276
134struct ev_loop 277struct ev_loop
135{ 278{
136# define VAR(name,decl) decl 279# define VAR(name,decl) decl;
137# include "ev_vars.h" 280# include "ev_vars.h"
138}; 281};
282# undef VAR
283# include "ev_wrap.h"
284
139#else 285#else
286
140# define VAR(name,decl) static decl 287# define VAR(name,decl) static decl;
141# include "ev_vars.h" 288# include "ev_vars.h"
142#endif
143#undef VAR 289# undef VAR
290
291#endif
144 292
145/*****************************************************************************/ 293/*****************************************************************************/
146 294
147inline ev_tstamp 295inline ev_tstamp
148ev_time (void) 296ev_time (void)
179 return rt_now; 327 return rt_now;
180} 328}
181 329
182#define array_roundsize(base,n) ((n) | 4 & ~3) 330#define array_roundsize(base,n) ((n) | 4 & ~3)
183 331
184#define array_needsize(base,cur,cnt,init) \ 332#define array_needsize(base,cur,cnt,init) \
185 if (expect_false ((cnt) > cur)) \ 333 if (expect_false ((cnt) > cur)) \
186 { \ 334 { \
187 int newcnt = cur; \ 335 int newcnt = cur; \
188 do \ 336 do \
189 { \ 337 { \
190 newcnt = array_roundsize (base, newcnt << 1); \ 338 newcnt = array_roundsize (base, newcnt << 1); \
191 } \ 339 } \
192 while ((cnt) > newcnt); \ 340 while ((cnt) > newcnt); \
193 \ 341 \
194 base = realloc (base, sizeof (*base) * (newcnt)); \ 342 base = ev_realloc (base, sizeof (*base) * (newcnt)); \
195 init (base + cur, newcnt - cur); \ 343 init (base + cur, newcnt - cur); \
196 cur = newcnt; \ 344 cur = newcnt; \
197 } 345 }
346
347#define array_slim(stem) \
348 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
349 { \
350 stem ## max = array_roundsize (stem ## cnt >> 1); \
351 base = ev_realloc (base, sizeof (*base) * (stem ## max)); \
352 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
353 }
354
355/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
356/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
357#define array_free_microshit(stem) \
358 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
359
360#define array_free(stem, idx) \
361 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
198 362
199/*****************************************************************************/ 363/*****************************************************************************/
200 364
201static void 365static void
202anfds_init (ANFD *base, int count) 366anfds_init (ANFD *base, int count)
219 pendings [ABSPRI (w)][w->pending - 1].events |= events; 383 pendings [ABSPRI (w)][w->pending - 1].events |= events;
220 return; 384 return;
221 } 385 }
222 386
223 w->pending = ++pendingcnt [ABSPRI (w)]; 387 w->pending = ++pendingcnt [ABSPRI (w)];
224 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); 388 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
225 pendings [ABSPRI (w)][w->pending - 1].w = w; 389 pendings [ABSPRI (w)][w->pending - 1].w = w;
226 pendings [ABSPRI (w)][w->pending - 1].events = events; 390 pendings [ABSPRI (w)][w->pending - 1].events = events;
227} 391}
228 392
229static void 393static void
268 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 432 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
269 events |= w->events; 433 events |= w->events;
270 434
271 anfd->reify = 0; 435 anfd->reify = 0;
272 436
273 if (anfd->events != events)
274 {
275 method_modify (EV_A_ fd, anfd->events, events); 437 method_modify (EV_A_ fd, anfd->events, events);
276 anfd->events = events; 438 anfd->events = events;
277 }
278 } 439 }
279 440
280 fdchangecnt = 0; 441 fdchangecnt = 0;
281} 442}
282 443
283static void 444static void
284fd_change (EV_P_ int fd) 445fd_change (EV_P_ int fd)
285{ 446{
286 if (anfds [fd].reify || fdchangecnt < 0) 447 if (anfds [fd].reify)
287 return; 448 return;
288 449
289 anfds [fd].reify = 1; 450 anfds [fd].reify = 1;
290 451
291 ++fdchangecnt; 452 ++fdchangecnt;
292 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 453 array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));
293 fdchanges [fdchangecnt - 1] = fd; 454 fdchanges [fdchangecnt - 1] = fd;
294} 455}
295 456
296static void 457static void
297fd_kill (EV_P_ int fd) 458fd_kill (EV_P_ int fd)
303 ev_io_stop (EV_A_ w); 464 ev_io_stop (EV_A_ w);
304 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 465 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
305 } 466 }
306} 467}
307 468
469static int
470fd_valid (int fd)
471{
472#ifdef WIN32
473 return !!win32_get_osfhandle (fd);
474#else
475 return fcntl (fd, F_GETFD) != -1;
476#endif
477}
478
308/* called on EBADF to verify fds */ 479/* called on EBADF to verify fds */
309static void 480static void
310fd_ebadf (EV_P) 481fd_ebadf (EV_P)
311{ 482{
312 int fd; 483 int fd;
313 484
314 for (fd = 0; fd < anfdmax; ++fd) 485 for (fd = 0; fd < anfdmax; ++fd)
315 if (anfds [fd].events) 486 if (anfds [fd].events)
316 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 487 if (!fd_valid (fd) == -1 && errno == EBADF)
317 fd_kill (EV_A_ fd); 488 fd_kill (EV_A_ fd);
318} 489}
319 490
320/* called on ENOMEM in select/poll to kill some fds and retry */ 491/* called on ENOMEM in select/poll to kill some fds and retry */
321static void 492static void
322fd_enomem (EV_P) 493fd_enomem (EV_P)
323{ 494{
324 int fd = anfdmax; 495 int fd;
325 496
326 while (fd--) 497 for (fd = anfdmax; fd--; )
327 if (anfds [fd].events) 498 if (anfds [fd].events)
328 { 499 {
329 close (fd);
330 fd_kill (EV_A_ fd); 500 fd_kill (EV_A_ fd);
331 return; 501 return;
332 } 502 }
333} 503}
334 504
505/* usually called after fork if method needs to re-arm all fds from scratch */
506static void
507fd_rearm_all (EV_P)
508{
509 int fd;
510
511 /* this should be highly optimised to not do anything but set a flag */
512 for (fd = 0; fd < anfdmax; ++fd)
513 if (anfds [fd].events)
514 {
515 anfds [fd].events = 0;
516 fd_change (EV_A_ fd);
517 }
518}
519
335/*****************************************************************************/ 520/*****************************************************************************/
336 521
337static void 522static void
338upheap (WT *timers, int k) 523upheap (WT *heap, int k)
339{ 524{
340 WT w = timers [k]; 525 WT w = heap [k];
341 526
342 while (k && timers [k >> 1]->at > w->at) 527 while (k && heap [k >> 1]->at > w->at)
343 { 528 {
344 timers [k] = timers [k >> 1]; 529 heap [k] = heap [k >> 1];
345 timers [k]->active = k + 1; 530 ((W)heap [k])->active = k + 1;
346 k >>= 1; 531 k >>= 1;
347 } 532 }
348 533
349 timers [k] = w; 534 heap [k] = w;
350 timers [k]->active = k + 1; 535 ((W)heap [k])->active = k + 1;
351 536
352} 537}
353 538
354static void 539static void
355downheap (WT *timers, int N, int k) 540downheap (WT *heap, int N, int k)
356{ 541{
357 WT w = timers [k]; 542 WT w = heap [k];
358 543
359 while (k < (N >> 1)) 544 while (k < (N >> 1))
360 { 545 {
361 int j = k << 1; 546 int j = k << 1;
362 547
363 if (j + 1 < N && timers [j]->at > timers [j + 1]->at) 548 if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364 ++j; 549 ++j;
365 550
366 if (w->at <= timers [j]->at) 551 if (w->at <= heap [j]->at)
367 break; 552 break;
368 553
369 timers [k] = timers [j]; 554 heap [k] = heap [j];
370 timers [k]->active = k + 1; 555 ((W)heap [k])->active = k + 1;
371 k = j; 556 k = j;
372 } 557 }
373 558
374 timers [k] = w; 559 heap [k] = w;
375 timers [k]->active = k + 1; 560 ((W)heap [k])->active = k + 1;
376} 561}
377 562
378/*****************************************************************************/ 563/*****************************************************************************/
379 564
380typedef struct 565typedef struct
381{ 566{
382 struct ev_watcher_list *head; 567 WL head;
383 sig_atomic_t volatile gotsig; 568 sig_atomic_t volatile gotsig;
384} ANSIG; 569} ANSIG;
385 570
386static ANSIG *signals; 571static ANSIG *signals;
387static int signalmax; 572static int signalmax;
388 573
389static int sigpipe [2]; 574static int sigpipe [2];
390static sig_atomic_t volatile gotsig; 575static sig_atomic_t volatile gotsig;
576static struct ev_io sigev;
391 577
392static void 578static void
393signals_init (ANSIG *base, int count) 579signals_init (ANSIG *base, int count)
394{ 580{
395 while (count--) 581 while (count--)
402} 588}
403 589
404static void 590static void
405sighandler (int signum) 591sighandler (int signum)
406{ 592{
593#if WIN32
594 signal (signum, sighandler);
595#endif
596
407 signals [signum - 1].gotsig = 1; 597 signals [signum - 1].gotsig = 1;
408 598
409 if (!gotsig) 599 if (!gotsig)
410 { 600 {
411 int old_errno = errno; 601 int old_errno = errno;
416} 606}
417 607
418static void 608static void
419sigcb (EV_P_ struct ev_io *iow, int revents) 609sigcb (EV_P_ struct ev_io *iow, int revents)
420{ 610{
421 struct ev_watcher_list *w; 611 WL w;
422 int signum; 612 int signum;
423 613
424 read (sigpipe [0], &revents, 1); 614 read (sigpipe [0], &revents, 1);
425 gotsig = 0; 615 gotsig = 0;
426 616
445 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 635 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
446 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 636 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
447#endif 637#endif
448 638
449 ev_io_set (&sigev, sigpipe [0], EV_READ); 639 ev_io_set (&sigev, sigpipe [0], EV_READ);
450 ev_io_start (&sigev); 640 ev_io_start (EV_A_ &sigev);
451 ev_unref (EV_A); /* child watcher should not keep loop alive */ 641 ev_unref (EV_A); /* child watcher should not keep loop alive */
452} 642}
453 643
454/*****************************************************************************/ 644/*****************************************************************************/
455 645
646static struct ev_child *childs [PID_HASHSIZE];
647
456#ifndef WIN32 648#ifndef WIN32
649
650static struct ev_signal childev;
457 651
458#ifndef WCONTINUED 652#ifndef WCONTINUED
459# define WCONTINUED 0 653# define WCONTINUED 0
460#endif 654#endif
461 655
465 struct ev_child *w; 659 struct ev_child *w;
466 660
467 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 661 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
468 if (w->pid == pid || !w->pid) 662 if (w->pid == pid || !w->pid)
469 { 663 {
470 w->priority = sw->priority; /* need to do it *now* */ 664 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
471 w->rpid = pid; 665 w->rpid = pid;
472 w->rstatus = status; 666 w->rstatus = status;
473 event (EV_A_ (W)w, EV_CHILD); 667 event (EV_A_ (W)w, EV_CHILD);
474 } 668 }
475} 669}
476 670
477static void 671static void
497# include "ev_kqueue.c" 691# include "ev_kqueue.c"
498#endif 692#endif
499#if EV_USE_EPOLL 693#if EV_USE_EPOLL
500# include "ev_epoll.c" 694# include "ev_epoll.c"
501#endif 695#endif
502#if EV_USEV_POLL 696#if EV_USE_POLL
503# include "ev_poll.c" 697# include "ev_poll.c"
504#endif 698#endif
505#if EV_USE_SELECT 699#if EV_USE_SELECT
506# include "ev_select.c" 700# include "ev_select.c"
507#endif 701#endif
534ev_method (EV_P) 728ev_method (EV_P)
535{ 729{
536 return method; 730 return method;
537} 731}
538 732
539int 733static void
540ev_init (EV_P_ int methods) 734loop_init (EV_P_ int methods)
541{ 735{
542#ifdef EV_MULTIPLICITY
543 memset (loop, 0, sizeof (struct ev_loop));
544#endif
545
546 if (!method) 736 if (!method)
547 { 737 {
548#if EV_USE_MONOTONIC 738#if EV_USE_MONOTONIC
549 { 739 {
550 struct timespec ts; 740 struct timespec ts;
554#endif 744#endif
555 745
556 rt_now = ev_time (); 746 rt_now = ev_time ();
557 mn_now = get_clock (); 747 mn_now = get_clock ();
558 now_floor = mn_now; 748 now_floor = mn_now;
559 diff = rt_now - mn_now; 749 rtmn_diff = rt_now - mn_now;
560
561 if (pipe (sigpipe))
562 return 0;
563 750
564 if (methods == EVMETHOD_AUTO) 751 if (methods == EVMETHOD_AUTO)
565 if (!enable_secure () && getenv ("LIBmethodS")) 752 if (!enable_secure () && getenv ("LIBEV_METHODS"))
566 methods = atoi (getenv ("LIBmethodS")); 753 methods = atoi (getenv ("LIBEV_METHODS"));
567 else 754 else
568 methods = EVMETHOD_ANY; 755 methods = EVMETHOD_ANY;
569 756
570 method = 0; 757 method = 0;
758#if EV_USE_WIN32
759 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
760#endif
571#if EV_USE_KQUEUE 761#if EV_USE_KQUEUE
572 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 762 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
573#endif 763#endif
574#if EV_USE_EPOLL 764#if EV_USE_EPOLL
575 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 765 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
576#endif 766#endif
577#if EV_USEV_POLL 767#if EV_USE_POLL
578 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 768 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
579#endif 769#endif
580#if EV_USE_SELECT 770#if EV_USE_SELECT
581 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 771 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
582#endif 772#endif
583 773
774 ev_watcher_init (&sigev, sigcb);
775 ev_set_priority (&sigev, EV_MAXPRI);
776 }
777}
778
779void
780loop_destroy (EV_P)
781{
782 int i;
783
784#if EV_USE_WIN32
785 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
786#endif
787#if EV_USE_KQUEUE
788 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
789#endif
790#if EV_USE_EPOLL
791 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
792#endif
793#if EV_USE_POLL
794 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
795#endif
796#if EV_USE_SELECT
797 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
798#endif
799
800 for (i = NUMPRI; i--; )
801 array_free (pending, [i]);
802
803 /* have to use the microsoft-never-gets-it-right macro */
804 array_free_microshit (fdchange);
805 array_free_microshit (timer);
806 array_free_microshit (periodic);
807 array_free_microshit (idle);
808 array_free_microshit (prepare);
809 array_free_microshit (check);
810
811 method = 0;
812}
813
814static void
815loop_fork (EV_P)
816{
817#if EV_USE_EPOLL
818 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
819#endif
820#if EV_USE_KQUEUE
821 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
822#endif
823
824 if (ev_is_active (&sigev))
825 {
826 /* default loop */
827
828 ev_ref (EV_A);
829 ev_io_stop (EV_A_ &sigev);
830 close (sigpipe [0]);
831 close (sigpipe [1]);
832
833 while (ev_pipe (sigpipe))
834 syserr ("(libev) error creating pipe");
835
836 siginit (EV_A);
837 }
838
839 postfork = 0;
840}
841
842#if EV_MULTIPLICITY
843struct ev_loop *
844ev_loop_new (int methods)
845{
846 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
847
848 memset (loop, 0, sizeof (struct ev_loop));
849
850 loop_init (EV_A_ methods);
851
852 if (ev_method (EV_A))
853 return loop;
854
855 return 0;
856}
857
858void
859ev_loop_destroy (EV_P)
860{
861 loop_destroy (EV_A);
862 ev_free (loop);
863}
864
865void
866ev_loop_fork (EV_P)
867{
868 postfork = 1;
869}
870
871#endif
872
873#if EV_MULTIPLICITY
874struct ev_loop default_loop_struct;
875static struct ev_loop *default_loop;
876
877struct ev_loop *
878#else
879static int default_loop;
880
881int
882#endif
883ev_default_loop (int methods)
884{
885 if (sigpipe [0] == sigpipe [1])
886 if (ev_pipe (sigpipe))
887 return 0;
888
889 if (!default_loop)
890 {
891#if EV_MULTIPLICITY
892 struct ev_loop *loop = default_loop = &default_loop_struct;
893#else
894 default_loop = 1;
895#endif
896
897 loop_init (EV_A_ methods);
898
584 if (method) 899 if (ev_method (EV_A))
585 { 900 {
586 ev_watcher_init (&sigev, sigcb);
587 ev_set_priority (&sigev, EV_MAXPRI);
588 siginit (EV_A); 901 siginit (EV_A);
589 902
590#ifndef WIN32 903#ifndef WIN32
591 ev_signal_init (&childev, childcb, SIGCHLD); 904 ev_signal_init (&childev, childcb, SIGCHLD);
592 ev_set_priority (&childev, EV_MAXPRI); 905 ev_set_priority (&childev, EV_MAXPRI);
593 ev_signal_start (EV_A_ &childev); 906 ev_signal_start (EV_A_ &childev);
594 ev_unref (EV_A); /* child watcher should not keep loop alive */ 907 ev_unref (EV_A); /* child watcher should not keep loop alive */
595#endif 908#endif
596 } 909 }
910 else
911 default_loop = 0;
597 } 912 }
598 913
599 return method; 914 return default_loop;
600} 915}
601 916
602/*****************************************************************************/
603
604void 917void
605ev_fork_prepare (void) 918ev_default_destroy (void)
606{ 919{
607 /* nop */ 920#if EV_MULTIPLICITY
608} 921 struct ev_loop *loop = default_loop;
609
610void
611ev_fork_parent (void)
612{
613 /* nop */
614}
615
616void
617ev_fork_child (void)
618{
619#if EV_USE_EPOLL
620 if (method == EVMETHOD_EPOLL)
621 epoll_postfork_child ();
622#endif 922#endif
623 923
924#ifndef WIN32
925 ev_ref (EV_A); /* child watcher */
926 ev_signal_stop (EV_A_ &childev);
927#endif
928
929 ev_ref (EV_A); /* signal watcher */
624 ev_io_stop (&sigev); 930 ev_io_stop (EV_A_ &sigev);
625 close (sigpipe [0]); 931
626 close (sigpipe [1]); 932 close (sigpipe [0]); sigpipe [0] = 0;
627 pipe (sigpipe); 933 close (sigpipe [1]); sigpipe [1] = 0;
628 siginit (); 934
935 loop_destroy (EV_A);
936}
937
938void
939ev_default_fork (void)
940{
941#if EV_MULTIPLICITY
942 struct ev_loop *loop = default_loop;
943#endif
944
945 if (method)
946 postfork = 1;
629} 947}
630 948
631/*****************************************************************************/ 949/*****************************************************************************/
632 950
633static void 951static void
649} 967}
650 968
651static void 969static void
652timers_reify (EV_P) 970timers_reify (EV_P)
653{ 971{
654 while (timercnt && timers [0]->at <= mn_now) 972 while (timercnt && ((WT)timers [0])->at <= mn_now)
655 { 973 {
656 struct ev_timer *w = timers [0]; 974 struct ev_timer *w = timers [0];
975
976 assert (("inactive timer on timer heap detected", ev_is_active (w)));
657 977
658 /* first reschedule or stop timer */ 978 /* first reschedule or stop timer */
659 if (w->repeat) 979 if (w->repeat)
660 { 980 {
661 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 981 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
662 w->at = mn_now + w->repeat; 982 ((WT)w)->at = mn_now + w->repeat;
663 downheap ((WT *)timers, timercnt, 0); 983 downheap ((WT *)timers, timercnt, 0);
664 } 984 }
665 else 985 else
666 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 986 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
667 987
668 event ((W)w, EV_TIMEOUT); 988 event (EV_A_ (W)w, EV_TIMEOUT);
669 } 989 }
670} 990}
671 991
672static void 992static void
673periodics_reify (EV_P) 993periodics_reify (EV_P)
674{ 994{
675 while (periodiccnt && periodics [0]->at <= rt_now) 995 while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
676 { 996 {
677 struct ev_periodic *w = periodics [0]; 997 struct ev_periodic *w = periodics [0];
998
999 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
678 1000
679 /* first reschedule or stop timer */ 1001 /* first reschedule or stop timer */
680 if (w->interval) 1002 if (w->interval)
681 { 1003 {
682 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 1004 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
683 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); 1005 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
684 downheap ((WT *)periodics, periodiccnt, 0); 1006 downheap ((WT *)periodics, periodiccnt, 0);
685 } 1007 }
686 else 1008 else
687 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1009 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
688 1010
689 event (EV_A_ (W)w, EV_PERIODIC); 1011 event (EV_A_ (W)w, EV_PERIODIC);
690 } 1012 }
691} 1013}
692 1014
693static void 1015static void
694periodics_reschedule (EV_P_ ev_tstamp diff) 1016periodics_reschedule (EV_P)
695{ 1017{
696 int i; 1018 int i;
697 1019
698 /* adjust periodics after time jump */ 1020 /* adjust periodics after time jump */
699 for (i = 0; i < periodiccnt; ++i) 1021 for (i = 0; i < periodiccnt; ++i)
700 { 1022 {
701 struct ev_periodic *w = periodics [i]; 1023 struct ev_periodic *w = periodics [i];
702 1024
703 if (w->interval) 1025 if (w->interval)
704 { 1026 {
705 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 1027 ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
706 1028
707 if (fabs (diff) >= 1e-4) 1029 if (fabs (diff) >= 1e-4)
708 { 1030 {
709 ev_periodic_stop (EV_A_ w); 1031 ev_periodic_stop (EV_A_ w);
710 ev_periodic_start (EV_A_ w); 1032 ev_periodic_start (EV_A_ w);
720{ 1042{
721 mn_now = get_clock (); 1043 mn_now = get_clock ();
722 1044
723 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1045 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
724 { 1046 {
725 rt_now = mn_now + diff; 1047 rt_now = rtmn_diff + mn_now;
726 return 0; 1048 return 0;
727 } 1049 }
728 else 1050 else
729 { 1051 {
730 now_floor = mn_now; 1052 now_floor = mn_now;
741#if EV_USE_MONOTONIC 1063#if EV_USE_MONOTONIC
742 if (expect_true (have_monotonic)) 1064 if (expect_true (have_monotonic))
743 { 1065 {
744 if (time_update_monotonic (EV_A)) 1066 if (time_update_monotonic (EV_A))
745 { 1067 {
746 ev_tstamp odiff = diff; 1068 ev_tstamp odiff = rtmn_diff;
747 1069
748 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1070 for (i = 4; --i; ) /* loop a few times, before making important decisions */
749 { 1071 {
750 diff = rt_now - mn_now; 1072 rtmn_diff = rt_now - mn_now;
751 1073
752 if (fabs (odiff - diff) < MIN_TIMEJUMP) 1074 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
753 return; /* all is well */ 1075 return; /* all is well */
754 1076
755 rt_now = ev_time (); 1077 rt_now = ev_time ();
756 mn_now = get_clock (); 1078 mn_now = get_clock ();
757 now_floor = mn_now; 1079 now_floor = mn_now;
758 } 1080 }
759 1081
760 periodics_reschedule (EV_A_ diff - odiff); 1082 periodics_reschedule (EV_A);
761 /* no timer adjustment, as the monotonic clock doesn't jump */ 1083 /* no timer adjustment, as the monotonic clock doesn't jump */
1084 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
762 } 1085 }
763 } 1086 }
764 else 1087 else
765#endif 1088#endif
766 { 1089 {
767 rt_now = ev_time (); 1090 rt_now = ev_time ();
768 1091
769 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1092 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
770 { 1093 {
771 periodics_reschedule (EV_A_ rt_now - mn_now); 1094 periodics_reschedule (EV_A);
772 1095
773 /* adjust timers. this is easy, as the offset is the same for all */ 1096 /* adjust timers. this is easy, as the offset is the same for all */
774 for (i = 0; i < timercnt; ++i) 1097 for (i = 0; i < timercnt; ++i)
775 timers [i]->at += diff; 1098 ((WT)timers [i])->at += rt_now - mn_now;
776 } 1099 }
777 1100
778 mn_now = rt_now; 1101 mn_now = rt_now;
779 } 1102 }
780} 1103}
806 { 1129 {
807 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1130 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
808 call_pending (EV_A); 1131 call_pending (EV_A);
809 } 1132 }
810 1133
1134 /* we might have forked, so reify kernel state if necessary */
1135 if (expect_false (postfork))
1136 loop_fork (EV_A);
1137
811 /* update fd-related kernel structures */ 1138 /* update fd-related kernel structures */
812 fd_reify (EV_A); 1139 fd_reify (EV_A);
813 1140
814 /* calculate blocking time */ 1141 /* calculate blocking time */
815 1142
831 { 1158 {
832 block = MAX_BLOCKTIME; 1159 block = MAX_BLOCKTIME;
833 1160
834 if (timercnt) 1161 if (timercnt)
835 { 1162 {
836 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1163 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
837 if (block > to) block = to; 1164 if (block > to) block = to;
838 } 1165 }
839 1166
840 if (periodiccnt) 1167 if (periodiccnt)
841 { 1168 {
842 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1169 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
843 if (block > to) block = to; 1170 if (block > to) block = to;
844 } 1171 }
845 1172
846 if (block < 0.) block = 0.; 1173 if (block < 0.) block = 0.;
847 } 1174 }
964ev_timer_start (EV_P_ struct ev_timer *w) 1291ev_timer_start (EV_P_ struct ev_timer *w)
965{ 1292{
966 if (ev_is_active (w)) 1293 if (ev_is_active (w))
967 return; 1294 return;
968 1295
969 w->at += mn_now; 1296 ((WT)w)->at += mn_now;
970 1297
971 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1298 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
972 1299
973 ev_start (EV_A_ (W)w, ++timercnt); 1300 ev_start (EV_A_ (W)w, ++timercnt);
974 array_needsize (timers, timermax, timercnt, ); 1301 array_needsize (timers, timermax, timercnt, (void));
975 timers [timercnt - 1] = w; 1302 timers [timercnt - 1] = w;
976 upheap ((WT *)timers, timercnt - 1); 1303 upheap ((WT *)timers, timercnt - 1);
1304
1305 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
977} 1306}
978 1307
979void 1308void
980ev_timer_stop (EV_P_ struct ev_timer *w) 1309ev_timer_stop (EV_P_ struct ev_timer *w)
981{ 1310{
982 ev_clear_pending (EV_A_ (W)w); 1311 ev_clear_pending (EV_A_ (W)w);
983 if (!ev_is_active (w)) 1312 if (!ev_is_active (w))
984 return; 1313 return;
985 1314
1315 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1316
986 if (w->active < timercnt--) 1317 if (((W)w)->active < timercnt--)
987 { 1318 {
988 timers [w->active - 1] = timers [timercnt]; 1319 timers [((W)w)->active - 1] = timers [timercnt];
989 downheap ((WT *)timers, timercnt, w->active - 1); 1320 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
990 } 1321 }
991 1322
992 w->at = w->repeat; 1323 ((WT)w)->at = w->repeat;
993 1324
994 ev_stop (EV_A_ (W)w); 1325 ev_stop (EV_A_ (W)w);
995} 1326}
996 1327
997void 1328void
999{ 1330{
1000 if (ev_is_active (w)) 1331 if (ev_is_active (w))
1001 { 1332 {
1002 if (w->repeat) 1333 if (w->repeat)
1003 { 1334 {
1004 w->at = mn_now + w->repeat; 1335 ((WT)w)->at = mn_now + w->repeat;
1005 downheap ((WT *)timers, timercnt, w->active - 1); 1336 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1006 } 1337 }
1007 else 1338 else
1008 ev_timer_stop (EV_A_ w); 1339 ev_timer_stop (EV_A_ w);
1009 } 1340 }
1010 else if (w->repeat) 1341 else if (w->repeat)
1019 1350
1020 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1351 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1021 1352
1022 /* this formula differs from the one in periodic_reify because we do not always round up */ 1353 /* this formula differs from the one in periodic_reify because we do not always round up */
1023 if (w->interval) 1354 if (w->interval)
1024 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; 1355 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1025 1356
1026 ev_start (EV_A_ (W)w, ++periodiccnt); 1357 ev_start (EV_A_ (W)w, ++periodiccnt);
1027 array_needsize (periodics, periodicmax, periodiccnt, ); 1358 array_needsize (periodics, periodicmax, periodiccnt, (void));
1028 periodics [periodiccnt - 1] = w; 1359 periodics [periodiccnt - 1] = w;
1029 upheap ((WT *)periodics, periodiccnt - 1); 1360 upheap ((WT *)periodics, periodiccnt - 1);
1361
1362 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1030} 1363}
1031 1364
1032void 1365void
1033ev_periodic_stop (EV_P_ struct ev_periodic *w) 1366ev_periodic_stop (EV_P_ struct ev_periodic *w)
1034{ 1367{
1035 ev_clear_pending (EV_A_ (W)w); 1368 ev_clear_pending (EV_A_ (W)w);
1036 if (!ev_is_active (w)) 1369 if (!ev_is_active (w))
1037 return; 1370 return;
1038 1371
1372 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1373
1039 if (w->active < periodiccnt--) 1374 if (((W)w)->active < periodiccnt--)
1040 { 1375 {
1041 periodics [w->active - 1] = periodics [periodiccnt]; 1376 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1042 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1377 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1043 } 1378 }
1044 1379
1380 ev_stop (EV_A_ (W)w);
1381}
1382
1383void
1384ev_idle_start (EV_P_ struct ev_idle *w)
1385{
1386 if (ev_is_active (w))
1387 return;
1388
1389 ev_start (EV_A_ (W)w, ++idlecnt);
1390 array_needsize (idles, idlemax, idlecnt, (void));
1391 idles [idlecnt - 1] = w;
1392}
1393
1394void
1395ev_idle_stop (EV_P_ struct ev_idle *w)
1396{
1397 ev_clear_pending (EV_A_ (W)w);
1398 if (ev_is_active (w))
1399 return;
1400
1401 idles [((W)w)->active - 1] = idles [--idlecnt];
1402 ev_stop (EV_A_ (W)w);
1403}
1404
1405void
1406ev_prepare_start (EV_P_ struct ev_prepare *w)
1407{
1408 if (ev_is_active (w))
1409 return;
1410
1411 ev_start (EV_A_ (W)w, ++preparecnt);
1412 array_needsize (prepares, preparemax, preparecnt, (void));
1413 prepares [preparecnt - 1] = w;
1414}
1415
1416void
1417ev_prepare_stop (EV_P_ struct ev_prepare *w)
1418{
1419 ev_clear_pending (EV_A_ (W)w);
1420 if (ev_is_active (w))
1421 return;
1422
1423 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1424 ev_stop (EV_A_ (W)w);
1425}
1426
1427void
1428ev_check_start (EV_P_ struct ev_check *w)
1429{
1430 if (ev_is_active (w))
1431 return;
1432
1433 ev_start (EV_A_ (W)w, ++checkcnt);
1434 array_needsize (checks, checkmax, checkcnt, (void));
1435 checks [checkcnt - 1] = w;
1436}
1437
1438void
1439ev_check_stop (EV_P_ struct ev_check *w)
1440{
1441 ev_clear_pending (EV_A_ (W)w);
1442 if (ev_is_active (w))
1443 return;
1444
1445 checks [((W)w)->active - 1] = checks [--checkcnt];
1045 ev_stop (EV_A_ (W)w); 1446 ev_stop (EV_A_ (W)w);
1046} 1447}
1047 1448
1048#ifndef SA_RESTART 1449#ifndef SA_RESTART
1049# define SA_RESTART 0 1450# define SA_RESTART 0
1050#endif 1451#endif
1051 1452
1052void 1453void
1053ev_signal_start (EV_P_ struct ev_signal *w) 1454ev_signal_start (EV_P_ struct ev_signal *w)
1054{ 1455{
1456#if EV_MULTIPLICITY
1457 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1458#endif
1055 if (ev_is_active (w)) 1459 if (ev_is_active (w))
1056 return; 1460 return;
1057 1461
1058 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1462 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1059 1463
1060 ev_start (EV_A_ (W)w, 1); 1464 ev_start (EV_A_ (W)w, 1);
1061 array_needsize (signals, signalmax, w->signum, signals_init); 1465 array_needsize (signals, signalmax, w->signum, signals_init);
1062 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1466 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1063 1467
1064 if (!w->next) 1468 if (!((WL)w)->next)
1065 { 1469 {
1470#if WIN32
1471 signal (w->signum, sighandler);
1472#else
1066 struct sigaction sa; 1473 struct sigaction sa;
1067 sa.sa_handler = sighandler; 1474 sa.sa_handler = sighandler;
1068 sigfillset (&sa.sa_mask); 1475 sigfillset (&sa.sa_mask);
1069 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1476 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1070 sigaction (w->signum, &sa, 0); 1477 sigaction (w->signum, &sa, 0);
1478#endif
1071 } 1479 }
1072} 1480}
1073 1481
1074void 1482void
1075ev_signal_stop (EV_P_ struct ev_signal *w) 1483ev_signal_stop (EV_P_ struct ev_signal *w)
1084 if (!signals [w->signum - 1].head) 1492 if (!signals [w->signum - 1].head)
1085 signal (w->signum, SIG_DFL); 1493 signal (w->signum, SIG_DFL);
1086} 1494}
1087 1495
1088void 1496void
1089ev_idle_start (EV_P_ struct ev_idle *w)
1090{
1091 if (ev_is_active (w))
1092 return;
1093
1094 ev_start (EV_A_ (W)w, ++idlecnt);
1095 array_needsize (idles, idlemax, idlecnt, );
1096 idles [idlecnt - 1] = w;
1097}
1098
1099void
1100ev_idle_stop (EV_P_ struct ev_idle *w)
1101{
1102 ev_clear_pending (EV_A_ (W)w);
1103 if (ev_is_active (w))
1104 return;
1105
1106 idles [w->active - 1] = idles [--idlecnt];
1107 ev_stop (EV_A_ (W)w);
1108}
1109
1110void
1111ev_prepare_start (EV_P_ struct ev_prepare *w)
1112{
1113 if (ev_is_active (w))
1114 return;
1115
1116 ev_start (EV_A_ (W)w, ++preparecnt);
1117 array_needsize (prepares, preparemax, preparecnt, );
1118 prepares [preparecnt - 1] = w;
1119}
1120
1121void
1122ev_prepare_stop (EV_P_ struct ev_prepare *w)
1123{
1124 ev_clear_pending (EV_A_ (W)w);
1125 if (ev_is_active (w))
1126 return;
1127
1128 prepares [w->active - 1] = prepares [--preparecnt];
1129 ev_stop (EV_A_ (W)w);
1130}
1131
1132void
1133ev_check_start (EV_P_ struct ev_check *w)
1134{
1135 if (ev_is_active (w))
1136 return;
1137
1138 ev_start (EV_A_ (W)w, ++checkcnt);
1139 array_needsize (checks, checkmax, checkcnt, );
1140 checks [checkcnt - 1] = w;
1141}
1142
1143void
1144ev_check_stop (EV_P_ struct ev_check *w)
1145{
1146 ev_clear_pending (EV_A_ (W)w);
1147 if (ev_is_active (w))
1148 return;
1149
1150 checks [w->active - 1] = checks [--checkcnt];
1151 ev_stop (EV_A_ (W)w);
1152}
1153
1154void
1155ev_child_start (EV_P_ struct ev_child *w) 1497ev_child_start (EV_P_ struct ev_child *w)
1156{ 1498{
1499#if EV_MULTIPLICITY
1500 assert (("child watchers are only supported in the default loop", loop == default_loop));
1501#endif
1157 if (ev_is_active (w)) 1502 if (ev_is_active (w))
1158 return; 1503 return;
1159 1504
1160 ev_start (EV_A_ (W)w, 1); 1505 ev_start (EV_A_ (W)w, 1);
1161 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1506 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1188 void (*cb)(int revents, void *arg) = once->cb; 1533 void (*cb)(int revents, void *arg) = once->cb;
1189 void *arg = once->arg; 1534 void *arg = once->arg;
1190 1535
1191 ev_io_stop (EV_A_ &once->io); 1536 ev_io_stop (EV_A_ &once->io);
1192 ev_timer_stop (EV_A_ &once->to); 1537 ev_timer_stop (EV_A_ &once->to);
1193 free (once); 1538 ev_free (once);
1194 1539
1195 cb (revents, arg); 1540 cb (revents, arg);
1196} 1541}
1197 1542
1198static void 1543static void
1208} 1553}
1209 1554
1210void 1555void
1211ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1556ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1212{ 1557{
1213 struct ev_once *once = malloc (sizeof (struct ev_once)); 1558 struct ev_once *once = ev_malloc (sizeof (struct ev_once));
1214 1559
1215 if (!once) 1560 if (!once)
1216 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1561 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1217 else 1562 else
1218 { 1563 {
1233 ev_timer_start (EV_A_ &once->to); 1578 ev_timer_start (EV_A_ &once->to);
1234 } 1579 }
1235 } 1580 }
1236} 1581}
1237 1582
1238/*****************************************************************************/
1239
1240#if 0
1241
1242struct ev_io wio;
1243
1244static void
1245sin_cb (struct ev_io *w, int revents)
1246{
1247 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1248}
1249
1250static void
1251ocb (struct ev_timer *w, int revents)
1252{
1253 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1254 ev_timer_stop (w);
1255 ev_timer_start (w);
1256}
1257
1258static void
1259scb (struct ev_signal *w, int revents)
1260{
1261 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1262 ev_io_stop (&wio);
1263 ev_io_start (&wio);
1264}
1265
1266static void
1267gcb (struct ev_signal *w, int revents)
1268{
1269 fprintf (stderr, "generic %x\n", revents);
1270
1271}
1272
1273int main (void)
1274{
1275 ev_init (0);
1276
1277 ev_io_init (&wio, sin_cb, 0, EV_READ);
1278 ev_io_start (&wio);
1279
1280 struct ev_timer t[10000];
1281
1282#if 0
1283 int i;
1284 for (i = 0; i < 10000; ++i)
1285 {
1286 struct ev_timer *w = t + i;
1287 ev_watcher_init (w, ocb, i);
1288 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1289 ev_timer_start (w);
1290 if (drand48 () < 0.5)
1291 ev_timer_stop (w);
1292 }
1293#endif
1294
1295 struct ev_timer t1;
1296 ev_timer_init (&t1, ocb, 5, 10);
1297 ev_timer_start (&t1);
1298
1299 struct ev_signal sig;
1300 ev_signal_init (&sig, scb, SIGQUIT);
1301 ev_signal_start (&sig);
1302
1303 struct ev_check cw;
1304 ev_check_init (&cw, gcb);
1305 ev_check_start (&cw);
1306
1307 struct ev_idle iw;
1308 ev_idle_init (&iw, gcb);
1309 ev_idle_start (&iw);
1310
1311 ev_loop (0);
1312
1313 return 0;
1314}
1315
1316#endif
1317
1318
1319
1320

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