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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 1.76 by root, Wed Nov 7 18:47:26 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#include "ev_win32.c"
154
118/*****************************************************************************/ 155/*****************************************************************************/
119 156
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
120typedef struct 205typedef struct
121{ 206{
122 struct ev_watcher_list *head; 207 WL head;
123 unsigned char events; 208 unsigned char events;
124 unsigned char reify; 209 unsigned char reify;
125} ANFD; 210} ANFD;
126 211
127typedef struct 212typedef struct
128{ 213{
129 W w; 214 W w;
130 int events; 215 int events;
131} ANPENDING; 216} ANPENDING;
132 217
133#ifdef EV_MULTIPLICITY 218#if EV_MULTIPLICITY
219
134struct ev_loop 220struct ev_loop
135{ 221{
136# define VAR(name,decl) decl 222# define VAR(name,decl) decl;
137# include "ev_vars.h" 223# include "ev_vars.h"
138}; 224};
225# undef VAR
226# include "ev_wrap.h"
227
139#else 228#else
229
140# define VAR(name,decl) static decl 230# define VAR(name,decl) static decl;
141# include "ev_vars.h" 231# include "ev_vars.h"
142#endif
143#undef VAR 232# undef VAR
233
234#endif
144 235
145/*****************************************************************************/ 236/*****************************************************************************/
146 237
147inline ev_tstamp 238inline ev_tstamp
148ev_time (void) 239ev_time (void)
… …
177ev_now (EV_P) 268ev_now (EV_P)
178{ 269{
179 return rt_now; 270 return rt_now;
180} 271}
181 272
182#define array_roundsize(base,n) ((n) | 4 & ~3) 273#define array_roundsize(type,n) ((n) | 4 & ~3)
183 274
184#define array_needsize(base,cur,cnt,init) \ 275#define array_needsize(type,base,cur,cnt,init) \
185 if (expect_false ((cnt) > cur)) \ 276 if (expect_false ((cnt) > cur)) \
186 { \ 277 { \
187 int newcnt = cur; \ 278 int newcnt = cur; \
188 do \ 279 do \
189 { \ 280 { \
190 newcnt = array_roundsize (base, newcnt << 1); \ 281 newcnt = array_roundsize (type, newcnt << 1); \
191 } \ 282 } \
192 while ((cnt) > newcnt); \ 283 while ((cnt) > newcnt); \
193 \ 284 \
194 base = realloc (base, sizeof (*base) * (newcnt)); \ 285 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
195 init (base + cur, newcnt - cur); \ 286 init (base + cur, newcnt - cur); \
196 cur = newcnt; \ 287 cur = newcnt; \
197 } 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;
198 305
199/*****************************************************************************/ 306/*****************************************************************************/
200 307
201static void 308static void
202anfds_init (ANFD *base, int count) 309anfds_init (ANFD *base, int count)
… …
219 pendings [ABSPRI (w)][w->pending - 1].events |= events; 326 pendings [ABSPRI (w)][w->pending - 1].events |= events;
220 return; 327 return;
221 } 328 }
222 329
223 w->pending = ++pendingcnt [ABSPRI (w)]; 330 w->pending = ++pendingcnt [ABSPRI (w)];
224 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); 331 array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
225 pendings [ABSPRI (w)][w->pending - 1].w = w; 332 pendings [ABSPRI (w)][w->pending - 1].w = w;
226 pendings [ABSPRI (w)][w->pending - 1].events = events; 333 pendings [ABSPRI (w)][w->pending - 1].events = events;
227} 334}
228 335
229static void 336static void
… …
268 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 375 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
269 events |= w->events; 376 events |= w->events;
270 377
271 anfd->reify = 0; 378 anfd->reify = 0;
272 379
273 if (anfd->events != events)
274 {
275 method_modify (EV_A_ fd, anfd->events, events); 380 method_modify (EV_A_ fd, anfd->events, events);
276 anfd->events = events; 381 anfd->events = events;
277 }
278 } 382 }
279 383
280 fdchangecnt = 0; 384 fdchangecnt = 0;
281} 385}
282 386
283static void 387static void
284fd_change (EV_P_ int fd) 388fd_change (EV_P_ int fd)
285{ 389{
286 if (anfds [fd].reify || fdchangecnt < 0) 390 if (anfds [fd].reify)
287 return; 391 return;
288 392
289 anfds [fd].reify = 1; 393 anfds [fd].reify = 1;
290 394
291 ++fdchangecnt; 395 ++fdchangecnt;
292 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 396 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
293 fdchanges [fdchangecnt - 1] = fd; 397 fdchanges [fdchangecnt - 1] = fd;
294} 398}
295 399
296static void 400static void
297fd_kill (EV_P_ int fd) 401fd_kill (EV_P_ int fd)
… …
303 ev_io_stop (EV_A_ w); 407 ev_io_stop (EV_A_ w);
304 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 408 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
305 } 409 }
306} 410}
307 411
412static int
413fd_valid (int fd)
414{
415#ifdef WIN32
416 return !!win32_get_osfhandle (fd);
417#else
418 return fcntl (fd, F_GETFD) != -1;
419#endif
420}
421
308/* called on EBADF to verify fds */ 422/* called on EBADF to verify fds */
309static void 423static void
310fd_ebadf (EV_P) 424fd_ebadf (EV_P)
311{ 425{
312 int fd; 426 int fd;
313 427
314 for (fd = 0; fd < anfdmax; ++fd) 428 for (fd = 0; fd < anfdmax; ++fd)
315 if (anfds [fd].events) 429 if (anfds [fd].events)
316 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 430 if (!fd_valid (fd) == -1 && errno == EBADF)
317 fd_kill (EV_A_ fd); 431 fd_kill (EV_A_ fd);
318} 432}
319 433
320/* called on ENOMEM in select/poll to kill some fds and retry */ 434/* called on ENOMEM in select/poll to kill some fds and retry */
321static void 435static void
322fd_enomem (EV_P) 436fd_enomem (EV_P)
323{ 437{
324 int fd = anfdmax; 438 int fd;
325 439
326 while (fd--) 440 for (fd = anfdmax; fd--; )
327 if (anfds [fd].events) 441 if (anfds [fd].events)
328 { 442 {
329 close (fd);
330 fd_kill (EV_A_ fd); 443 fd_kill (EV_A_ fd);
331 return; 444 return;
332 } 445 }
333} 446}
334 447
448/* usually called after fork if method needs to re-arm all fds from scratch */
449static void
450fd_rearm_all (EV_P)
451{
452 int fd;
453
454 /* this should be highly optimised to not do anything but set a flag */
455 for (fd = 0; fd < anfdmax; ++fd)
456 if (anfds [fd].events)
457 {
458 anfds [fd].events = 0;
459 fd_change (EV_A_ fd);
460 }
461}
462
335/*****************************************************************************/ 463/*****************************************************************************/
336 464
337static void 465static void
338upheap (WT *timers, int k) 466upheap (WT *heap, int k)
339{ 467{
340 WT w = timers [k]; 468 WT w = heap [k];
341 469
342 while (k && timers [k >> 1]->at > w->at) 470 while (k && heap [k >> 1]->at > w->at)
343 { 471 {
344 timers [k] = timers [k >> 1]; 472 heap [k] = heap [k >> 1];
345 timers [k]->active = k + 1; 473 ((W)heap [k])->active = k + 1;
346 k >>= 1; 474 k >>= 1;
347 } 475 }
348 476
349 timers [k] = w; 477 heap [k] = w;
350 timers [k]->active = k + 1; 478 ((W)heap [k])->active = k + 1;
351 479
352} 480}
353 481
354static void 482static void
355downheap (WT *timers, int N, int k) 483downheap (WT *heap, int N, int k)
356{ 484{
357 WT w = timers [k]; 485 WT w = heap [k];
358 486
359 while (k < (N >> 1)) 487 while (k < (N >> 1))
360 { 488 {
361 int j = k << 1; 489 int j = k << 1;
362 490
363 if (j + 1 < N && timers [j]->at > timers [j + 1]->at) 491 if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364 ++j; 492 ++j;
365 493
366 if (w->at <= timers [j]->at) 494 if (w->at <= heap [j]->at)
367 break; 495 break;
368 496
369 timers [k] = timers [j]; 497 heap [k] = heap [j];
370 timers [k]->active = k + 1; 498 ((W)heap [k])->active = k + 1;
371 k = j; 499 k = j;
372 } 500 }
373 501
374 timers [k] = w; 502 heap [k] = w;
375 timers [k]->active = k + 1; 503 ((W)heap [k])->active = k + 1;
376} 504}
377 505
378/*****************************************************************************/ 506/*****************************************************************************/
379 507
380typedef struct 508typedef struct
381{ 509{
382 struct ev_watcher_list *head; 510 WL head;
383 sig_atomic_t volatile gotsig; 511 sig_atomic_t volatile gotsig;
384} ANSIG; 512} ANSIG;
385 513
386static ANSIG *signals; 514static ANSIG *signals;
387static int signalmax; 515static int signalmax;
388 516
389static int sigpipe [2]; 517static int sigpipe [2];
390static sig_atomic_t volatile gotsig; 518static sig_atomic_t volatile gotsig;
519static struct ev_io sigev;
391 520
392static void 521static void
393signals_init (ANSIG *base, int count) 522signals_init (ANSIG *base, int count)
394{ 523{
395 while (count--) 524 while (count--)
… …
402} 531}
403 532
404static void 533static void
405sighandler (int signum) 534sighandler (int signum)
406{ 535{
536#if WIN32
537 signal (signum, sighandler);
538#endif
539
407 signals [signum - 1].gotsig = 1; 540 signals [signum - 1].gotsig = 1;
408 541
409 if (!gotsig) 542 if (!gotsig)
410 { 543 {
411 int old_errno = errno; 544 int old_errno = errno;
412 gotsig = 1; 545 gotsig = 1;
546#ifdef WIN32
547 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
548#else
413 write (sigpipe [1], &signum, 1); 549 write (sigpipe [1], &signum, 1);
550#endif
414 errno = old_errno; 551 errno = old_errno;
415 } 552 }
416} 553}
417 554
418static void 555static void
419sigcb (EV_P_ struct ev_io *iow, int revents) 556sigcb (EV_P_ struct ev_io *iow, int revents)
420{ 557{
421 struct ev_watcher_list *w; 558 WL w;
422 int signum; 559 int signum;
423 560
561#ifdef WIN32
562 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
563#else
424 read (sigpipe [0], &revents, 1); 564 read (sigpipe [0], &revents, 1);
565#endif
425 gotsig = 0; 566 gotsig = 0;
426 567
427 for (signum = signalmax; signum--; ) 568 for (signum = signalmax; signum--; )
428 if (signals [signum].gotsig) 569 if (signals [signum].gotsig)
429 { 570 {
… …
445 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 586 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
446 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 587 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
447#endif 588#endif
448 589
449 ev_io_set (&sigev, sigpipe [0], EV_READ); 590 ev_io_set (&sigev, sigpipe [0], EV_READ);
450 ev_io_start (&sigev); 591 ev_io_start (EV_A_ &sigev);
451 ev_unref (EV_A); /* child watcher should not keep loop alive */ 592 ev_unref (EV_A); /* child watcher should not keep loop alive */
452} 593}
453 594
454/*****************************************************************************/ 595/*****************************************************************************/
455 596
597static struct ev_child *childs [PID_HASHSIZE];
598
456#ifndef WIN32 599#ifndef WIN32
600
601static struct ev_signal childev;
457 602
458#ifndef WCONTINUED 603#ifndef WCONTINUED
459# define WCONTINUED 0 604# define WCONTINUED 0
460#endif 605#endif
461 606
… …
465 struct ev_child *w; 610 struct ev_child *w;
466 611
467 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 612 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) 613 if (w->pid == pid || !w->pid)
469 { 614 {
470 w->priority = sw->priority; /* need to do it *now* */ 615 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
471 w->rpid = pid; 616 w->rpid = pid;
472 w->rstatus = status; 617 w->rstatus = status;
473 event (EV_A_ (W)w, EV_CHILD); 618 event (EV_A_ (W)w, EV_CHILD);
474 } 619 }
475} 620}
476 621
477static void 622static void
… …
497# include "ev_kqueue.c" 642# include "ev_kqueue.c"
498#endif 643#endif
499#if EV_USE_EPOLL 644#if EV_USE_EPOLL
500# include "ev_epoll.c" 645# include "ev_epoll.c"
501#endif 646#endif
502#if EV_USEV_POLL 647#if EV_USE_POLL
503# include "ev_poll.c" 648# include "ev_poll.c"
504#endif 649#endif
505#if EV_USE_SELECT 650#if EV_USE_SELECT
506# include "ev_select.c" 651# include "ev_select.c"
507#endif 652#endif
… …
534ev_method (EV_P) 679ev_method (EV_P)
535{ 680{
536 return method; 681 return method;
537} 682}
538 683
539int 684static void
540ev_init (EV_P_ int methods) 685loop_init (EV_P_ int methods)
541{ 686{
542#ifdef EV_MULTIPLICITY
543 memset (loop, 0, sizeof (struct ev_loop));
544#endif
545
546 if (!method) 687 if (!method)
547 { 688 {
548#if EV_USE_MONOTONIC 689#if EV_USE_MONOTONIC
549 { 690 {
550 struct timespec ts; 691 struct timespec ts;
… …
554#endif 695#endif
555 696
556 rt_now = ev_time (); 697 rt_now = ev_time ();
557 mn_now = get_clock (); 698 mn_now = get_clock ();
558 now_floor = mn_now; 699 now_floor = mn_now;
559 diff = rt_now - mn_now; 700 rtmn_diff = rt_now - mn_now;
560
561 if (pipe (sigpipe))
562 return 0;
563 701
564 if (methods == EVMETHOD_AUTO) 702 if (methods == EVMETHOD_AUTO)
565 if (!enable_secure () && getenv ("LIBmethodS")) 703 if (!enable_secure () && getenv ("LIBEV_METHODS"))
566 methods = atoi (getenv ("LIBmethodS")); 704 methods = atoi (getenv ("LIBEV_METHODS"));
567 else 705 else
568 methods = EVMETHOD_ANY; 706 methods = EVMETHOD_ANY;
569 707
570 method = 0; 708 method = 0;
709#if EV_USE_WIN32
710 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
711#endif
571#if EV_USE_KQUEUE 712#if EV_USE_KQUEUE
572 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 713 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
573#endif 714#endif
574#if EV_USE_EPOLL 715#if EV_USE_EPOLL
575 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 716 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
576#endif 717#endif
577#if EV_USEV_POLL 718#if EV_USE_POLL
578 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 719 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
579#endif 720#endif
580#if EV_USE_SELECT 721#if EV_USE_SELECT
581 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 722 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
582#endif 723#endif
583 724
725 ev_watcher_init (&sigev, sigcb);
726 ev_set_priority (&sigev, EV_MAXPRI);
727 }
728}
729
730void
731loop_destroy (EV_P)
732{
733 int i;
734
735#if EV_USE_WIN32
736 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
737#endif
738#if EV_USE_KQUEUE
739 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
740#endif
741#if EV_USE_EPOLL
742 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
743#endif
744#if EV_USE_POLL
745 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
746#endif
747#if EV_USE_SELECT
748 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
749#endif
750
751 for (i = NUMPRI; i--; )
752 array_free (pending, [i]);
753
754 /* have to use the microsoft-never-gets-it-right macro */
755 array_free_microshit (fdchange);
756 array_free_microshit (timer);
757 array_free_microshit (periodic);
758 array_free_microshit (idle);
759 array_free_microshit (prepare);
760 array_free_microshit (check);
761
762 method = 0;
763}
764
765static void
766loop_fork (EV_P)
767{
768#if EV_USE_EPOLL
769 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
770#endif
771#if EV_USE_KQUEUE
772 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
773#endif
774
775 if (ev_is_active (&sigev))
776 {
777 /* default loop */
778
779 ev_ref (EV_A);
780 ev_io_stop (EV_A_ &sigev);
781 close (sigpipe [0]);
782 close (sigpipe [1]);
783
784 while (pipe (sigpipe))
785 syserr ("(libev) error creating pipe");
786
787 siginit (EV_A);
788 }
789
790 postfork = 0;
791}
792
793#if EV_MULTIPLICITY
794struct ev_loop *
795ev_loop_new (int methods)
796{
797 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
798
799 memset (loop, 0, sizeof (struct ev_loop));
800
801 loop_init (EV_A_ methods);
802
803 if (ev_method (EV_A))
804 return loop;
805
806 return 0;
807}
808
809void
810ev_loop_destroy (EV_P)
811{
812 loop_destroy (EV_A);
813 ev_free (loop);
814}
815
816void
817ev_loop_fork (EV_P)
818{
819 postfork = 1;
820}
821
822#endif
823
824#if EV_MULTIPLICITY
825struct ev_loop default_loop_struct;
826static struct ev_loop *default_loop;
827
828struct ev_loop *
829#else
830static int default_loop;
831
832int
833#endif
834ev_default_loop (int methods)
835{
836 if (sigpipe [0] == sigpipe [1])
837 if (pipe (sigpipe))
838 return 0;
839
840 if (!default_loop)
841 {
842#if EV_MULTIPLICITY
843 struct ev_loop *loop = default_loop = &default_loop_struct;
844#else
845 default_loop = 1;
846#endif
847
848 loop_init (EV_A_ methods);
849
584 if (method) 850 if (ev_method (EV_A))
585 { 851 {
586 ev_watcher_init (&sigev, sigcb);
587 ev_set_priority (&sigev, EV_MAXPRI);
588 siginit (EV_A); 852 siginit (EV_A);
589 853
590#ifndef WIN32 854#ifndef WIN32
591 ev_signal_init (&childev, childcb, SIGCHLD); 855 ev_signal_init (&childev, childcb, SIGCHLD);
592 ev_set_priority (&childev, EV_MAXPRI); 856 ev_set_priority (&childev, EV_MAXPRI);
593 ev_signal_start (EV_A_ &childev); 857 ev_signal_start (EV_A_ &childev);
594 ev_unref (EV_A); /* child watcher should not keep loop alive */ 858 ev_unref (EV_A); /* child watcher should not keep loop alive */
595#endif 859#endif
596 } 860 }
861 else
862 default_loop = 0;
597 } 863 }
598 864
599 return method; 865 return default_loop;
866}
867
868void
869ev_default_destroy (void)
870{
871#if EV_MULTIPLICITY
872 struct ev_loop *loop = default_loop;
873#endif
874
875#ifndef WIN32
876 ev_ref (EV_A); /* child watcher */
877 ev_signal_stop (EV_A_ &childev);
878#endif
879
880 ev_ref (EV_A); /* signal watcher */
881 ev_io_stop (EV_A_ &sigev);
882
883 close (sigpipe [0]); sigpipe [0] = 0;
884 close (sigpipe [1]); sigpipe [1] = 0;
885
886 loop_destroy (EV_A);
887}
888
889void
890ev_default_fork (void)
891{
892#if EV_MULTIPLICITY
893 struct ev_loop *loop = default_loop;
894#endif
895
896 if (method)
897 postfork = 1;
600} 898}
601 899
602/*****************************************************************************/ 900/*****************************************************************************/
603 901
604void 902static int
605ev_fork_prepare (void) 903any_pending (EV_P)
606{ 904{
607 /* nop */ 905 int pri;
608}
609 906
610void 907 for (pri = NUMPRI; pri--; )
611ev_fork_parent (void) 908 if (pendingcnt [pri])
612{ 909 return 1;
613 /* nop */
614}
615 910
616void 911 return 0;
617ev_fork_child (void)
618{
619#if EV_USE_EPOLL
620 if (method == EVMETHOD_EPOLL)
621 epoll_postfork_child ();
622#endif
623
624 ev_io_stop (&sigev);
625 close (sigpipe [0]);
626 close (sigpipe [1]);
627 pipe (sigpipe);
628 siginit ();
629} 912}
630
631/*****************************************************************************/
632 913
633static void 914static void
634call_pending (EV_P) 915call_pending (EV_P)
635{ 916{
636 int pri; 917 int pri;
… …
649} 930}
650 931
651static void 932static void
652timers_reify (EV_P) 933timers_reify (EV_P)
653{ 934{
654 while (timercnt && timers [0]->at <= mn_now) 935 while (timercnt && ((WT)timers [0])->at <= mn_now)
655 { 936 {
656 struct ev_timer *w = timers [0]; 937 struct ev_timer *w = timers [0];
938
939 assert (("inactive timer on timer heap detected", ev_is_active (w)));
657 940
658 /* first reschedule or stop timer */ 941 /* first reschedule or stop timer */
659 if (w->repeat) 942 if (w->repeat)
660 { 943 {
661 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 944 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
662 w->at = mn_now + w->repeat; 945 ((WT)w)->at = mn_now + w->repeat;
663 downheap ((WT *)timers, timercnt, 0); 946 downheap ((WT *)timers, timercnt, 0);
664 } 947 }
665 else 948 else
666 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 949 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
667 950
668 event ((W)w, EV_TIMEOUT); 951 event (EV_A_ (W)w, EV_TIMEOUT);
669 } 952 }
670} 953}
671 954
672static void 955static void
673periodics_reify (EV_P) 956periodics_reify (EV_P)
674{ 957{
675 while (periodiccnt && periodics [0]->at <= rt_now) 958 while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
676 { 959 {
677 struct ev_periodic *w = periodics [0]; 960 struct ev_periodic *w = periodics [0];
961
962 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
678 963
679 /* first reschedule or stop timer */ 964 /* first reschedule or stop timer */
680 if (w->interval) 965 if (w->interval)
681 { 966 {
682 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 967 ((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)); 968 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
684 downheap ((WT *)periodics, periodiccnt, 0); 969 downheap ((WT *)periodics, periodiccnt, 0);
685 } 970 }
686 else 971 else
687 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 972 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
688 973
689 event (EV_A_ (W)w, EV_PERIODIC); 974 event (EV_A_ (W)w, EV_PERIODIC);
690 } 975 }
691} 976}
692 977
693static void 978static void
694periodics_reschedule (EV_P_ ev_tstamp diff) 979periodics_reschedule (EV_P)
695{ 980{
696 int i; 981 int i;
697 982
698 /* adjust periodics after time jump */ 983 /* adjust periodics after time jump */
699 for (i = 0; i < periodiccnt; ++i) 984 for (i = 0; i < periodiccnt; ++i)
700 { 985 {
701 struct ev_periodic *w = periodics [i]; 986 struct ev_periodic *w = periodics [i];
702 987
703 if (w->interval) 988 if (w->interval)
704 { 989 {
705 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 990 ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
706 991
707 if (fabs (diff) >= 1e-4) 992 if (fabs (diff) >= 1e-4)
708 { 993 {
709 ev_periodic_stop (EV_A_ w); 994 ev_periodic_stop (EV_A_ w);
710 ev_periodic_start (EV_A_ w); 995 ev_periodic_start (EV_A_ w);
… …
720{ 1005{
721 mn_now = get_clock (); 1006 mn_now = get_clock ();
722 1007
723 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1008 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
724 { 1009 {
725 rt_now = mn_now + diff; 1010 rt_now = rtmn_diff + mn_now;
726 return 0; 1011 return 0;
727 } 1012 }
728 else 1013 else
729 { 1014 {
730 now_floor = mn_now; 1015 now_floor = mn_now;
… …
741#if EV_USE_MONOTONIC 1026#if EV_USE_MONOTONIC
742 if (expect_true (have_monotonic)) 1027 if (expect_true (have_monotonic))
743 { 1028 {
744 if (time_update_monotonic (EV_A)) 1029 if (time_update_monotonic (EV_A))
745 { 1030 {
746 ev_tstamp odiff = diff; 1031 ev_tstamp odiff = rtmn_diff;
747 1032
748 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1033 for (i = 4; --i; ) /* loop a few times, before making important decisions */
749 { 1034 {
750 diff = rt_now - mn_now; 1035 rtmn_diff = rt_now - mn_now;
751 1036
752 if (fabs (odiff - diff) < MIN_TIMEJUMP) 1037 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
753 return; /* all is well */ 1038 return; /* all is well */
754 1039
755 rt_now = ev_time (); 1040 rt_now = ev_time ();
756 mn_now = get_clock (); 1041 mn_now = get_clock ();
757 now_floor = mn_now; 1042 now_floor = mn_now;
758 } 1043 }
759 1044
760 periodics_reschedule (EV_A_ diff - odiff); 1045 periodics_reschedule (EV_A);
761 /* no timer adjustment, as the monotonic clock doesn't jump */ 1046 /* no timer adjustment, as the monotonic clock doesn't jump */
1047 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
762 } 1048 }
763 } 1049 }
764 else 1050 else
765#endif 1051#endif
766 { 1052 {
767 rt_now = ev_time (); 1053 rt_now = ev_time ();
768 1054
769 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1055 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
770 { 1056 {
771 periodics_reschedule (EV_A_ rt_now - mn_now); 1057 periodics_reschedule (EV_A);
772 1058
773 /* adjust timers. this is easy, as the offset is the same for all */ 1059 /* adjust timers. this is easy, as the offset is the same for all */
774 for (i = 0; i < timercnt; ++i) 1060 for (i = 0; i < timercnt; ++i)
775 timers [i]->at += diff; 1061 ((WT)timers [i])->at += rt_now - mn_now;
776 } 1062 }
777 1063
778 mn_now = rt_now; 1064 mn_now = rt_now;
779 } 1065 }
780} 1066}
… …
806 { 1092 {
807 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1093 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
808 call_pending (EV_A); 1094 call_pending (EV_A);
809 } 1095 }
810 1096
1097 /* we might have forked, so reify kernel state if necessary */
1098 if (expect_false (postfork))
1099 loop_fork (EV_A);
1100
811 /* update fd-related kernel structures */ 1101 /* update fd-related kernel structures */
812 fd_reify (EV_A); 1102 fd_reify (EV_A);
813 1103
814 /* calculate blocking time */ 1104 /* calculate blocking time */
815 1105
816 /* we only need this for !monotonic clockor timers, but as we basically 1106 /* we only need this for !monotonic clock or timers, but as we basically
817 always have timers, we just calculate it always */ 1107 always have timers, we just calculate it always */
818#if EV_USE_MONOTONIC 1108#if EV_USE_MONOTONIC
819 if (expect_true (have_monotonic)) 1109 if (expect_true (have_monotonic))
820 time_update_monotonic (EV_A); 1110 time_update_monotonic (EV_A);
821 else 1111 else
… …
831 { 1121 {
832 block = MAX_BLOCKTIME; 1122 block = MAX_BLOCKTIME;
833 1123
834 if (timercnt) 1124 if (timercnt)
835 { 1125 {
836 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1126 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
837 if (block > to) block = to; 1127 if (block > to) block = to;
838 } 1128 }
839 1129
840 if (periodiccnt) 1130 if (periodiccnt)
841 { 1131 {
842 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1132 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
843 if (block > to) block = to; 1133 if (block > to) block = to;
844 } 1134 }
845 1135
846 if (block < 0.) block = 0.; 1136 if (block < 0.) block = 0.;
847 } 1137 }
… …
854 /* queue pending timers and reschedule them */ 1144 /* queue pending timers and reschedule them */
855 timers_reify (EV_A); /* relative timers called last */ 1145 timers_reify (EV_A); /* relative timers called last */
856 periodics_reify (EV_A); /* absolute timers called first */ 1146 periodics_reify (EV_A); /* absolute timers called first */
857 1147
858 /* queue idle watchers unless io or timers are pending */ 1148 /* queue idle watchers unless io or timers are pending */
859 if (!pendingcnt) 1149 if (idlecnt && !any_pending (EV_A))
860 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1150 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
861 1151
862 /* queue check watchers, to be executed first */ 1152 /* queue check watchers, to be executed first */
863 if (checkcnt) 1153 if (checkcnt)
864 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1154 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
… …
939 return; 1229 return;
940 1230
941 assert (("ev_io_start called with negative fd", fd >= 0)); 1231 assert (("ev_io_start called with negative fd", fd >= 0));
942 1232
943 ev_start (EV_A_ (W)w, 1); 1233 ev_start (EV_A_ (W)w, 1);
944 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1234 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
945 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1235 wlist_add ((WL *)&anfds[fd].head, (WL)w);
946 1236
947 fd_change (EV_A_ fd); 1237 fd_change (EV_A_ fd);
948} 1238}
949 1239
… …
964ev_timer_start (EV_P_ struct ev_timer *w) 1254ev_timer_start (EV_P_ struct ev_timer *w)
965{ 1255{
966 if (ev_is_active (w)) 1256 if (ev_is_active (w))
967 return; 1257 return;
968 1258
969 w->at += mn_now; 1259 ((WT)w)->at += mn_now;
970 1260
971 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1261 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
972 1262
973 ev_start (EV_A_ (W)w, ++timercnt); 1263 ev_start (EV_A_ (W)w, ++timercnt);
974 array_needsize (timers, timermax, timercnt, ); 1264 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
975 timers [timercnt - 1] = w; 1265 timers [timercnt - 1] = w;
976 upheap ((WT *)timers, timercnt - 1); 1266 upheap ((WT *)timers, timercnt - 1);
1267
1268 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
977} 1269}
978 1270
979void 1271void
980ev_timer_stop (EV_P_ struct ev_timer *w) 1272ev_timer_stop (EV_P_ struct ev_timer *w)
981{ 1273{
982 ev_clear_pending (EV_A_ (W)w); 1274 ev_clear_pending (EV_A_ (W)w);
983 if (!ev_is_active (w)) 1275 if (!ev_is_active (w))
984 return; 1276 return;
985 1277
1278 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1279
986 if (w->active < timercnt--) 1280 if (((W)w)->active < timercnt--)
987 { 1281 {
988 timers [w->active - 1] = timers [timercnt]; 1282 timers [((W)w)->active - 1] = timers [timercnt];
989 downheap ((WT *)timers, timercnt, w->active - 1); 1283 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
990 } 1284 }
991 1285
992 w->at = w->repeat; 1286 ((WT)w)->at = w->repeat;
993 1287
994 ev_stop (EV_A_ (W)w); 1288 ev_stop (EV_A_ (W)w);
995} 1289}
996 1290
997void 1291void
… …
999{ 1293{
1000 if (ev_is_active (w)) 1294 if (ev_is_active (w))
1001 { 1295 {
1002 if (w->repeat) 1296 if (w->repeat)
1003 { 1297 {
1004 w->at = mn_now + w->repeat; 1298 ((WT)w)->at = mn_now + w->repeat;
1005 downheap ((WT *)timers, timercnt, w->active - 1); 1299 downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1006 } 1300 }
1007 else 1301 else
1008 ev_timer_stop (EV_A_ w); 1302 ev_timer_stop (EV_A_ w);
1009 } 1303 }
1010 else if (w->repeat) 1304 else if (w->repeat)
… …
1019 1313
1020 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1314 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1021 1315
1022 /* this formula differs from the one in periodic_reify because we do not always round up */ 1316 /* this formula differs from the one in periodic_reify because we do not always round up */
1023 if (w->interval) 1317 if (w->interval)
1024 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; 1318 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1025 1319
1026 ev_start (EV_A_ (W)w, ++periodiccnt); 1320 ev_start (EV_A_ (W)w, ++periodiccnt);
1027 array_needsize (periodics, periodicmax, periodiccnt, ); 1321 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1028 periodics [periodiccnt - 1] = w; 1322 periodics [periodiccnt - 1] = w;
1029 upheap ((WT *)periodics, periodiccnt - 1); 1323 upheap ((WT *)periodics, periodiccnt - 1);
1324
1325 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1030} 1326}
1031 1327
1032void 1328void
1033ev_periodic_stop (EV_P_ struct ev_periodic *w) 1329ev_periodic_stop (EV_P_ struct ev_periodic *w)
1034{ 1330{
1035 ev_clear_pending (EV_A_ (W)w); 1331 ev_clear_pending (EV_A_ (W)w);
1036 if (!ev_is_active (w)) 1332 if (!ev_is_active (w))
1037 return; 1333 return;
1038 1334
1335 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1336
1039 if (w->active < periodiccnt--) 1337 if (((W)w)->active < periodiccnt--)
1040 { 1338 {
1041 periodics [w->active - 1] = periodics [periodiccnt]; 1339 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1042 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1340 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1043 } 1341 }
1044 1342
1343 ev_stop (EV_A_ (W)w);
1344}
1345
1346void
1347ev_idle_start (EV_P_ struct ev_idle *w)
1348{
1349 if (ev_is_active (w))
1350 return;
1351
1352 ev_start (EV_A_ (W)w, ++idlecnt);
1353 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1354 idles [idlecnt - 1] = w;
1355}
1356
1357void
1358ev_idle_stop (EV_P_ struct ev_idle *w)
1359{
1360 ev_clear_pending (EV_A_ (W)w);
1361 if (ev_is_active (w))
1362 return;
1363
1364 idles [((W)w)->active - 1] = idles [--idlecnt];
1365 ev_stop (EV_A_ (W)w);
1366}
1367
1368void
1369ev_prepare_start (EV_P_ struct ev_prepare *w)
1370{
1371 if (ev_is_active (w))
1372 return;
1373
1374 ev_start (EV_A_ (W)w, ++preparecnt);
1375 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1376 prepares [preparecnt - 1] = w;
1377}
1378
1379void
1380ev_prepare_stop (EV_P_ struct ev_prepare *w)
1381{
1382 ev_clear_pending (EV_A_ (W)w);
1383 if (ev_is_active (w))
1384 return;
1385
1386 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1387 ev_stop (EV_A_ (W)w);
1388}
1389
1390void
1391ev_check_start (EV_P_ struct ev_check *w)
1392{
1393 if (ev_is_active (w))
1394 return;
1395
1396 ev_start (EV_A_ (W)w, ++checkcnt);
1397 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1398 checks [checkcnt - 1] = w;
1399}
1400
1401void
1402ev_check_stop (EV_P_ struct ev_check *w)
1403{
1404 ev_clear_pending (EV_A_ (W)w);
1405 if (ev_is_active (w))
1406 return;
1407
1408 checks [((W)w)->active - 1] = checks [--checkcnt];
1045 ev_stop (EV_A_ (W)w); 1409 ev_stop (EV_A_ (W)w);
1046} 1410}
1047 1411
1048#ifndef SA_RESTART 1412#ifndef SA_RESTART
1049# define SA_RESTART 0 1413# define SA_RESTART 0
1050#endif 1414#endif
1051 1415
1052void 1416void
1053ev_signal_start (EV_P_ struct ev_signal *w) 1417ev_signal_start (EV_P_ struct ev_signal *w)
1054{ 1418{
1419#if EV_MULTIPLICITY
1420 assert (("signal watchers are only supported in the default loop", loop == default_loop));
1421#endif
1055 if (ev_is_active (w)) 1422 if (ev_is_active (w))
1056 return; 1423 return;
1057 1424
1058 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1425 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1059 1426
1060 ev_start (EV_A_ (W)w, 1); 1427 ev_start (EV_A_ (W)w, 1);
1061 array_needsize (signals, signalmax, w->signum, signals_init); 1428 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1062 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1429 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1063 1430
1064 if (!w->next) 1431 if (!((WL)w)->next)
1065 { 1432 {
1433#if WIN32
1434 signal (w->signum, sighandler);
1435#else
1066 struct sigaction sa; 1436 struct sigaction sa;
1067 sa.sa_handler = sighandler; 1437 sa.sa_handler = sighandler;
1068 sigfillset (&sa.sa_mask); 1438 sigfillset (&sa.sa_mask);
1069 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1439 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1070 sigaction (w->signum, &sa, 0); 1440 sigaction (w->signum, &sa, 0);
1441#endif
1071 } 1442 }
1072} 1443}
1073 1444
1074void 1445void
1075ev_signal_stop (EV_P_ struct ev_signal *w) 1446ev_signal_stop (EV_P_ struct ev_signal *w)
… …
1084 if (!signals [w->signum - 1].head) 1455 if (!signals [w->signum - 1].head)
1085 signal (w->signum, SIG_DFL); 1456 signal (w->signum, SIG_DFL);
1086} 1457}
1087 1458
1088void 1459void
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) 1460ev_child_start (EV_P_ struct ev_child *w)
1156{ 1461{
1462#if EV_MULTIPLICITY
1463 assert (("child watchers are only supported in the default loop", loop == default_loop));
1464#endif
1157 if (ev_is_active (w)) 1465 if (ev_is_active (w))
1158 return; 1466 return;
1159 1467
1160 ev_start (EV_A_ (W)w, 1); 1468 ev_start (EV_A_ (W)w, 1);
1161 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1469 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
… …
1188 void (*cb)(int revents, void *arg) = once->cb; 1496 void (*cb)(int revents, void *arg) = once->cb;
1189 void *arg = once->arg; 1497 void *arg = once->arg;
1190 1498
1191 ev_io_stop (EV_A_ &once->io); 1499 ev_io_stop (EV_A_ &once->io);
1192 ev_timer_stop (EV_A_ &once->to); 1500 ev_timer_stop (EV_A_ &once->to);
1193 free (once); 1501 ev_free (once);
1194 1502
1195 cb (revents, arg); 1503 cb (revents, arg);
1196} 1504}
1197 1505
1198static void 1506static void
… …
1208} 1516}
1209 1517
1210void 1518void
1211ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1519ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1212{ 1520{
1213 struct ev_once *once = malloc (sizeof (struct ev_once)); 1521 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1214 1522
1215 if (!once) 1523 if (!once)
1216 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1524 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1217 else 1525 else
1218 { 1526 {
… …
1233 ev_timer_start (EV_A_ &once->to); 1541 ev_timer_start (EV_A_ &once->to);
1234 } 1542 }
1235 } 1543 }
1236} 1544}
1237 1545
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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