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Comparing libev/ev.c (file contents):
Revision 1.18 by root, Wed Oct 31 16:29:52 2007 UTC vs.
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC

1/* 1/*
2 * libev event processing core, watcher management
3 *
2 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
3 * All rights reserved. 5 * All rights reserved.
4 * 6 *
5 * Redistribution and use in source and binary forms, with or without 7 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are 8 * modification, are permitted provided that the following conditions are
… …
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (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
27 * 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.
28 */ 30 */
31#if EV_USE_CONFIG_H
32# include "config.h"
33#endif
29 34
30#include <math.h> 35#include <math.h>
31#include <stdlib.h> 36#include <stdlib.h>
32#include <unistd.h> 37#include <unistd.h>
33#include <fcntl.h> 38#include <fcntl.h>
… …
36 41
37#include <stdio.h> 42#include <stdio.h>
38 43
39#include <assert.h> 44#include <assert.h>
40#include <errno.h> 45#include <errno.h>
46#include <sys/types.h>
47#ifndef WIN32
48# include <sys/wait.h>
49#endif
41#include <sys/time.h> 50#include <sys/time.h>
42#include <time.h> 51#include <time.h>
43 52
44#define HAVE_EPOLL 1 53/**/
45 54
46#ifndef HAVE_MONOTONIC 55#ifndef EV_USE_MONOTONIC
56# define EV_USE_MONOTONIC 1
57#endif
58
59#ifndef EV_USE_SELECT
60# define EV_USE_SELECT 1
61#endif
62
63#ifndef EV_USE_POLL
64# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65#endif
66
67#ifndef EV_USE_EPOLL
68# define EV_USE_EPOLL 0
69#endif
70
71#ifndef EV_USE_KQUEUE
72# define EV_USE_KQUEUE 0
73#endif
74
75#ifndef EV_USE_REALTIME
76# define EV_USE_REALTIME 1
77#endif
78
79/**/
80
47# ifdef CLOCK_MONOTONIC 81#ifndef CLOCK_MONOTONIC
82# undef EV_USE_MONOTONIC
48# define HAVE_MONOTONIC 1 83# define EV_USE_MONOTONIC 0
49# endif 84#endif
50#endif
51 85
52#ifndef HAVE_SELECT
53# define HAVE_SELECT 1
54#endif
55
56#ifndef HAVE_EPOLL
57# define HAVE_EPOLL 0
58#endif
59
60#ifndef HAVE_REALTIME 86#ifndef CLOCK_REALTIME
61# define HAVE_REALTIME 1 /* posix requirement, but might be slower */ 87# undef EV_USE_REALTIME
88# define EV_USE_REALTIME 0
62#endif 89#endif
90
91/**/
63 92
64#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 93#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
65#define MAX_BLOCKTIME 60. 94#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
66 97
67#include "ev.h" 98#include "ev.h"
99
100#if __GNUC__ >= 3
101# define expect(expr,value) __builtin_expect ((expr),(value))
102# define inline inline
103#else
104# define expect(expr,value) (expr)
105# define inline static
106#endif
107
108#define expect_false(expr) expect ((expr) != 0, 0)
109#define expect_true(expr) expect ((expr) != 0, 1)
110
111#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112#define ABSPRI(w) ((w)->priority - EV_MINPRI)
68 113
69typedef struct ev_watcher *W; 114typedef struct ev_watcher *W;
70typedef struct ev_watcher_list *WL; 115typedef struct ev_watcher_list *WL;
71typedef struct ev_watcher_time *WT; 116typedef struct ev_watcher_time *WT;
72 117
73static ev_tstamp now, diff; /* monotonic clock */ 118static ev_tstamp now_floor, now, diff; /* monotonic clock */
74ev_tstamp ev_now; 119ev_tstamp ev_now;
75int ev_method; 120int ev_method;
76 121
77static int have_monotonic; /* runtime */ 122static int have_monotonic; /* runtime */
78 123
… …
83/*****************************************************************************/ 128/*****************************************************************************/
84 129
85ev_tstamp 130ev_tstamp
86ev_time (void) 131ev_time (void)
87{ 132{
88#if HAVE_REALTIME 133#if EV_USE_REALTIME
89 struct timespec ts; 134 struct timespec ts;
90 clock_gettime (CLOCK_REALTIME, &ts); 135 clock_gettime (CLOCK_REALTIME, &ts);
91 return ts.tv_sec + ts.tv_nsec * 1e-9; 136 return ts.tv_sec + ts.tv_nsec * 1e-9;
92#else 137#else
93 struct timeval tv; 138 struct timeval tv;
… …
97} 142}
98 143
99static ev_tstamp 144static ev_tstamp
100get_clock (void) 145get_clock (void)
101{ 146{
102#if HAVE_MONOTONIC 147#if EV_USE_MONOTONIC
103 if (have_monotonic) 148 if (expect_true (have_monotonic))
104 { 149 {
105 struct timespec ts; 150 struct timespec ts;
106 clock_gettime (CLOCK_MONOTONIC, &ts); 151 clock_gettime (CLOCK_MONOTONIC, &ts);
107 return ts.tv_sec + ts.tv_nsec * 1e-9; 152 return ts.tv_sec + ts.tv_nsec * 1e-9;
108 } 153 }
109#endif 154#endif
110 155
111 return ev_time (); 156 return ev_time ();
112} 157}
113 158
159#define array_roundsize(base,n) ((n) | 4 & ~3)
160
114#define array_needsize(base,cur,cnt,init) \ 161#define array_needsize(base,cur,cnt,init) \
115 if ((cnt) > cur) \ 162 if (expect_false ((cnt) > cur)) \
116 { \ 163 { \
117 int newcnt = cur ? cur << 1 : 16; \ 164 int newcnt = cur; \
165 do \
166 { \
167 newcnt = array_roundsize (base, newcnt << 1); \
168 } \
169 while ((cnt) > newcnt); \
170 \
118 base = realloc (base, sizeof (*base) * (newcnt)); \ 171 base = realloc (base, sizeof (*base) * (newcnt)); \
119 init (base + cur, newcnt - cur); \ 172 init (base + cur, newcnt - cur); \
120 cur = newcnt; \ 173 cur = newcnt; \
121 } 174 }
122 175
123/*****************************************************************************/ 176/*****************************************************************************/
124 177
125typedef struct 178typedef struct
126{ 179{
127 struct ev_io *head; 180 struct ev_io *head;
128 unsigned char wev, rev; /* want, received event set */ 181 unsigned char events;
182 unsigned char reify;
129} ANFD; 183} ANFD;
130 184
131static ANFD *anfds; 185static ANFD *anfds;
132static int anfdmax; 186static int anfdmax;
133 187
134static int *fdchanges;
135static int fdchangemax, fdchangecnt;
136
137static void 188static void
138anfds_init (ANFD *base, int count) 189anfds_init (ANFD *base, int count)
139{ 190{
140 while (count--) 191 while (count--)
141 { 192 {
142 base->head = 0; 193 base->head = 0;
143 base->wev = base->rev = EV_NONE; 194 base->events = EV_NONE;
195 base->reify = 0;
196
144 ++base; 197 ++base;
145 } 198 }
146} 199}
147 200
148typedef struct 201typedef struct
149{ 202{
150 W w; 203 W w;
151 int events; 204 int events;
152} ANPENDING; 205} ANPENDING;
153 206
154static ANPENDING *pendings; 207static ANPENDING *pendings [NUMPRI];
155static int pendingmax, pendingcnt; 208static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
156 209
157static void 210static void
158event (W w, int events) 211event (W w, int events)
159{ 212{
160 if (w->active) 213 if (w->pending)
161 { 214 {
162 w->pending = ++pendingcnt;
163 array_needsize (pendings, pendingmax, pendingcnt, );
164 pendings [pendingcnt - 1].w = w;
165 pendings [pendingcnt - 1].events = events; 215 pendings [ABSPRI (w)][w->pending - 1].events |= events;
216 return;
166 } 217 }
218
219 w->pending = ++pendingcnt [ABSPRI (w)];
220 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
221 pendings [ABSPRI (w)][w->pending - 1].w = w;
222 pendings [ABSPRI (w)][w->pending - 1].events = events;
223}
224
225static void
226queue_events (W *events, int eventcnt, int type)
227{
228 int i;
229
230 for (i = 0; i < eventcnt; ++i)
231 event (events [i], type);
167} 232}
168 233
169static void 234static void
170fd_event (int fd, int events) 235fd_event (int fd, int events)
171{ 236{
… …
179 if (ev) 244 if (ev)
180 event ((W)w, ev); 245 event ((W)w, ev);
181 } 246 }
182} 247}
183 248
249/*****************************************************************************/
250
251static int *fdchanges;
252static int fdchangemax, fdchangecnt;
253
184static void 254static void
185queue_events (W *events, int eventcnt, int type) 255fd_reify (void)
186{ 256{
187 int i; 257 int i;
188 258
189 for (i = 0; i < eventcnt; ++i) 259 for (i = 0; i < fdchangecnt; ++i)
190 event (events [i], type); 260 {
261 int fd = fdchanges [i];
262 ANFD *anfd = anfds + fd;
263 struct ev_io *w;
264
265 int events = 0;
266
267 for (w = anfd->head; w; w = w->next)
268 events |= w->events;
269
270 anfd->reify = 0;
271
272 if (anfd->events != events)
273 {
274 method_modify (fd, anfd->events, events);
275 anfd->events = events;
276 }
277 }
278
279 fdchangecnt = 0;
280}
281
282static void
283fd_change (int fd)
284{
285 if (anfds [fd].reify || fdchangecnt < 0)
286 return;
287
288 anfds [fd].reify = 1;
289
290 ++fdchangecnt;
291 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
292 fdchanges [fdchangecnt - 1] = fd;
293}
294
295static void
296fd_kill (int fd)
297{
298 struct ev_io *w;
299
300 printf ("killing fd %d\n", fd);//D
301 while ((w = anfds [fd].head))
302 {
303 ev_io_stop (w);
304 event ((W)w, EV_ERROR | EV_READ | EV_WRITE);
305 }
306}
307
308/* called on EBADF to verify fds */
309static void
310fd_ebadf (void)
311{
312 int fd;
313
314 for (fd = 0; fd < anfdmax; ++fd)
315 if (anfds [fd].events)
316 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
317 fd_kill (fd);
318}
319
320/* called on ENOMEM in select/poll to kill some fds and retry */
321static void
322fd_enomem (void)
323{
324 int fd = anfdmax;
325
326 while (fd--)
327 if (anfds [fd].events)
328 {
329 close (fd);
330 fd_kill (fd);
331 return;
332 }
191} 333}
192 334
193/*****************************************************************************/ 335/*****************************************************************************/
194 336
195static struct ev_timer **timers; 337static struct ev_timer **timers;
… …
242/*****************************************************************************/ 384/*****************************************************************************/
243 385
244typedef struct 386typedef struct
245{ 387{
246 struct ev_signal *head; 388 struct ev_signal *head;
247 sig_atomic_t gotsig; 389 sig_atomic_t volatile gotsig;
248} ANSIG; 390} ANSIG;
249 391
250static ANSIG *signals; 392static ANSIG *signals;
251static int signalmax; 393static int signalmax;
252 394
253static int sigpipe [2]; 395static int sigpipe [2];
254static sig_atomic_t gotsig; 396static sig_atomic_t volatile gotsig;
255static struct ev_io sigev; 397static struct ev_io sigev;
256 398
257static void 399static void
258signals_init (ANSIG *base, int count) 400signals_init (ANSIG *base, int count)
259{ 401{
260 while (count--) 402 while (count--)
261 { 403 {
262 base->head = 0; 404 base->head = 0;
263 base->gotsig = 0; 405 base->gotsig = 0;
406
264 ++base; 407 ++base;
265 } 408 }
266} 409}
267 410
268static void 411static void
… …
271 signals [signum - 1].gotsig = 1; 414 signals [signum - 1].gotsig = 1;
272 415
273 if (!gotsig) 416 if (!gotsig)
274 { 417 {
275 gotsig = 1; 418 gotsig = 1;
276 write (sigpipe [1], &gotsig, 1); 419 write (sigpipe [1], &signum, 1);
277 } 420 }
278} 421}
279 422
280static void 423static void
281sigcb (struct ev_io *iow, int revents) 424sigcb (struct ev_io *iow, int revents)
282{ 425{
283 struct ev_signal *w; 426 struct ev_signal *w;
284 int sig; 427 int signum;
285 428
429 read (sigpipe [0], &revents, 1);
286 gotsig = 0; 430 gotsig = 0;
287 read (sigpipe [0], &revents, 1);
288 431
289 for (sig = signalmax; sig--; ) 432 for (signum = signalmax; signum--; )
290 if (signals [sig].gotsig) 433 if (signals [signum].gotsig)
291 { 434 {
292 signals [sig].gotsig = 0; 435 signals [signum].gotsig = 0;
293 436
294 for (w = signals [sig].head; w; w = w->next) 437 for (w = signals [signum].head; w; w = w->next)
295 event ((W)w, EV_SIGNAL); 438 event ((W)w, EV_SIGNAL);
296 } 439 }
297} 440}
298 441
299static void 442static void
300siginit (void) 443siginit (void)
301{ 444{
445#ifndef WIN32
302 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 446 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
303 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); 447 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
304 448
305 /* rather than sort out wether we really need nb, set it */ 449 /* rather than sort out wether we really need nb, set it */
306 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); 450 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
307 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); 451 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452#endif
308 453
309 evio_set (&sigev, sigpipe [0], EV_READ); 454 ev_io_set (&sigev, sigpipe [0], EV_READ);
310 evio_start (&sigev); 455 ev_io_start (&sigev);
311} 456}
312 457
313/*****************************************************************************/ 458/*****************************************************************************/
314 459
315static struct ev_idle **idles; 460static struct ev_idle **idles;
316static int idlemax, idlecnt; 461static int idlemax, idlecnt;
317 462
463static struct ev_prepare **prepares;
464static int preparemax, preparecnt;
465
318static struct ev_check **checks; 466static struct ev_check **checks;
319static int checkmax, checkcnt; 467static int checkmax, checkcnt;
320 468
321/*****************************************************************************/ 469/*****************************************************************************/
322 470
471static struct ev_child *childs [PID_HASHSIZE];
472static struct ev_signal childev;
473
474#ifndef WIN32
475
476#ifndef WCONTINUED
477# define WCONTINUED 0
478#endif
479
480static void
481childcb (struct ev_signal *sw, int revents)
482{
483 struct ev_child *w;
484 int pid, status;
485
486 while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1)
487 for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)
488 if (w->pid == pid || !w->pid)
489 {
490 w->status = status;
491 event ((W)w, EV_CHILD);
492 }
493}
494
495#endif
496
497/*****************************************************************************/
498
499#if EV_USE_KQUEUE
500# include "ev_kqueue.c"
501#endif
323#if HAVE_EPOLL 502#if EV_USE_EPOLL
324# include "ev_epoll.c" 503# include "ev_epoll.c"
325#endif 504#endif
505#if EV_USE_POLL
506# include "ev_poll.c"
507#endif
326#if HAVE_SELECT 508#if EV_USE_SELECT
327# include "ev_select.c" 509# include "ev_select.c"
328#endif 510#endif
329 511
512int
513ev_version_major (void)
514{
515 return EV_VERSION_MAJOR;
516}
517
518int
519ev_version_minor (void)
520{
521 return EV_VERSION_MINOR;
522}
523
524/* return true if we are running with elevated privileges and ignore env variables */
525static int
526enable_secure ()
527{
528 return getuid () != geteuid ()
529 || getgid () != getegid ();
530}
531
330int ev_init (int flags) 532int ev_init (int methods)
331{ 533{
332#if HAVE_MONOTONIC
333 {
334 struct timespec ts;
335 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
336 have_monotonic = 1;
337 }
338#endif
339
340 ev_now = ev_time ();
341 now = get_clock ();
342 diff = ev_now - now;
343
344 if (pipe (sigpipe))
345 return 0;
346
347 ev_method = EVMETHOD_NONE;
348#if HAVE_EPOLL
349 if (ev_method == EVMETHOD_NONE) epoll_init (flags);
350#endif
351#if HAVE_SELECT
352 if (ev_method == EVMETHOD_NONE) select_init (flags);
353#endif
354
355 if (ev_method) 534 if (!ev_method)
535 {
536#if EV_USE_MONOTONIC
356 { 537 {
538 struct timespec ts;
539 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
540 have_monotonic = 1;
541 }
542#endif
543
544 ev_now = ev_time ();
545 now = get_clock ();
546 now_floor = now;
547 diff = ev_now - now;
548
549 if (pipe (sigpipe))
550 return 0;
551
552 if (methods == EVMETHOD_AUTO)
553 if (!enable_secure () && getenv ("LIBEV_METHODS"))
554 methods = atoi (getenv ("LIBEV_METHODS"));
555 else
556 methods = EVMETHOD_ANY;
557
558 ev_method = 0;
559#if EV_USE_KQUEUE
560 if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);
561#endif
562#if EV_USE_EPOLL
563 if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
564#endif
565#if EV_USE_POLL
566 if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
567#endif
568#if EV_USE_SELECT
569 if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
570#endif
571
572 if (ev_method)
573 {
357 evw_init (&sigev, sigcb); 574 ev_watcher_init (&sigev, sigcb);
358 siginit (); 575 siginit ();
576
577#ifndef WIN32
578 ev_signal_init (&childev, childcb, SIGCHLD);
579 ev_signal_start (&childev);
580#endif
581 }
359 } 582 }
360 583
361 return ev_method; 584 return ev_method;
362} 585}
363 586
364/*****************************************************************************/ 587/*****************************************************************************/
365 588
366void ev_prefork (void) 589void
590ev_fork_prepare (void)
367{ 591{
368 /* nop */ 592 /* nop */
369} 593}
370 594
595void
371void ev_postfork_parent (void) 596ev_fork_parent (void)
372{ 597{
373 /* nop */ 598 /* nop */
374} 599}
375 600
601void
376void ev_postfork_child (void) 602ev_fork_child (void)
377{ 603{
378#if HAVE_EPOLL 604#if EV_USE_EPOLL
379 if (ev_method == EVMETHOD_EPOLL) 605 if (ev_method == EVMETHOD_EPOLL)
380 epoll_postfork_child (); 606 epoll_postfork_child ();
381#endif 607#endif
382 608
383 evio_stop (&sigev); 609 ev_io_stop (&sigev);
384 close (sigpipe [0]); 610 close (sigpipe [0]);
385 close (sigpipe [1]); 611 close (sigpipe [1]);
386 pipe (sigpipe); 612 pipe (sigpipe);
387 siginit (); 613 siginit ();
388} 614}
389 615
390/*****************************************************************************/ 616/*****************************************************************************/
391 617
392static void 618static void
393fd_reify (void) 619call_pending (void)
394{ 620{
395 int i; 621 int pri;
396 622
397 for (i = 0; i < fdchangecnt; ++i) 623 for (pri = NUMPRI; pri--; )
398 { 624 while (pendingcnt [pri])
399 int fd = fdchanges [i];
400 ANFD *anfd = anfds + fd;
401 struct ev_io *w;
402
403 int wev = 0;
404
405 for (w = anfd->head; w; w = w->next)
406 wev |= w->events;
407
408 if (anfd->wev != wev)
409 { 625 {
410 method_modify (fd, anfd->wev, wev);
411 anfd->wev = wev;
412 }
413 }
414
415 fdchangecnt = 0;
416}
417
418static void
419call_pending ()
420{
421 while (pendingcnt)
422 {
423 ANPENDING *p = pendings + --pendingcnt; 626 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
424 627
425 if (p->w) 628 if (p->w)
426 { 629 {
427 p->w->pending = 0; 630 p->w->pending = 0;
428 p->w->cb (p->w, p->events); 631 p->w->cb (p->w, p->events);
429 } 632 }
430 } 633 }
431} 634}
432 635
433static void 636static void
434timers_reify () 637timers_reify (void)
435{ 638{
436 while (timercnt && timers [0]->at <= now) 639 while (timercnt && timers [0]->at <= now)
437 { 640 {
438 struct ev_timer *w = timers [0]; 641 struct ev_timer *w = timers [0];
439
440 event ((W)w, EV_TIMEOUT);
441 642
442 /* first reschedule or stop timer */ 643 /* first reschedule or stop timer */
443 if (w->repeat) 644 if (w->repeat)
444 { 645 {
646 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
445 w->at = now + w->repeat; 647 w->at = now + w->repeat;
446 assert (("timer timeout in the past, negative repeat?", w->at > now));
447 downheap ((WT *)timers, timercnt, 0); 648 downheap ((WT *)timers, timercnt, 0);
448 } 649 }
449 else 650 else
450 evtimer_stop (w); /* nonrepeating: stop timer */ 651 ev_timer_stop (w); /* nonrepeating: stop timer */
451 }
452}
453 652
653 event ((W)w, EV_TIMEOUT);
654 }
655}
656
454static void 657static void
455periodics_reify () 658periodics_reify (void)
456{ 659{
457 while (periodiccnt && periodics [0]->at <= ev_now) 660 while (periodiccnt && periodics [0]->at <= ev_now)
458 { 661 {
459 struct ev_periodic *w = periodics [0]; 662 struct ev_periodic *w = periodics [0];
460 663
461 /* first reschedule or stop timer */ 664 /* first reschedule or stop timer */
462 if (w->interval) 665 if (w->interval)
463 { 666 {
464 w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; 667 w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
465 assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); 668 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
466 downheap ((WT *)periodics, periodiccnt, 0); 669 downheap ((WT *)periodics, periodiccnt, 0);
467 } 670 }
468 else 671 else
469 evperiodic_stop (w); /* nonrepeating: stop timer */ 672 ev_periodic_stop (w); /* nonrepeating: stop timer */
470 673
471 event ((W)w, EV_TIMEOUT); 674 event ((W)w, EV_PERIODIC);
472 } 675 }
473} 676}
474 677
475static void 678static void
476periodics_reschedule (ev_tstamp diff) 679periodics_reschedule (ev_tstamp diff)
… …
486 { 689 {
487 ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; 690 ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
488 691
489 if (fabs (diff) >= 1e-4) 692 if (fabs (diff) >= 1e-4)
490 { 693 {
491 evperiodic_stop (w); 694 ev_periodic_stop (w);
492 evperiodic_start (w); 695 ev_periodic_start (w);
493 696
494 i = 0; /* restart loop, inefficient, but time jumps should be rare */ 697 i = 0; /* restart loop, inefficient, but time jumps should be rare */
495 } 698 }
496 } 699 }
497 } 700 }
498} 701}
499 702
500static void 703static int
704time_update_monotonic (void)
705{
706 now = get_clock ();
707
708 if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))
709 {
710 ev_now = now + diff;
711 return 0;
712 }
713 else
714 {
715 now_floor = now;
716 ev_now = ev_time ();
717 return 1;
718 }
719}
720
721static void
501time_update () 722time_update (void)
502{ 723{
503 int i; 724 int i;
504 725
505 ev_now = ev_time (); 726#if EV_USE_MONOTONIC
506
507 if (have_monotonic) 727 if (expect_true (have_monotonic))
508 { 728 {
729 if (time_update_monotonic ())
730 {
509 ev_tstamp odiff = diff; 731 ev_tstamp odiff = diff;
510 732
511 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 733 for (i = 4; --i; ) /* loop a few times, before making important decisions */
512 { 734 {
513 now = get_clock ();
514 diff = ev_now - now; 735 diff = ev_now - now;
515 736
516 if (fabs (odiff - diff) < MIN_TIMEJUMP) 737 if (fabs (odiff - diff) < MIN_TIMEJUMP)
517 return; /* all is well */ 738 return; /* all is well */
518 739
519 ev_now = ev_time (); 740 ev_now = ev_time ();
741 now = get_clock ();
742 now_floor = now;
520 } 743 }
521 744
522 periodics_reschedule (diff - odiff); 745 periodics_reschedule (diff - odiff);
523 /* no timer adjustment, as the monotonic clock doesn't jump */ 746 /* no timer adjustment, as the monotonic clock doesn't jump */
747 }
524 } 748 }
525 else 749 else
750#endif
526 { 751 {
752 ev_now = ev_time ();
753
527 if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) 754 if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
528 { 755 {
529 periodics_reschedule (ev_now - now); 756 periodics_reschedule (ev_now - now);
530 757
531 /* adjust timers. this is easy, as the offset is the same for all */ 758 /* adjust timers. this is easy, as the offset is the same for all */
532 for (i = 0; i < timercnt; ++i) 759 for (i = 0; i < timercnt; ++i)
… …
540int ev_loop_done; 767int ev_loop_done;
541 768
542void ev_loop (int flags) 769void ev_loop (int flags)
543{ 770{
544 double block; 771 double block;
545 ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0; 772 ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
546
547 if (checkcnt)
548 {
549 queue_events ((W *)checks, checkcnt, EV_CHECK);
550 call_pending ();
551 }
552 773
553 do 774 do
554 { 775 {
776 /* queue check watchers (and execute them) */
777 if (expect_false (preparecnt))
778 {
779 queue_events ((W *)prepares, preparecnt, EV_PREPARE);
780 call_pending ();
781 }
782
555 /* update fd-related kernel structures */ 783 /* update fd-related kernel structures */
556 fd_reify (); 784 fd_reify ();
557 785
558 /* calculate blocking time */ 786 /* calculate blocking time */
559 787
560 /* we only need this for !monotonic clock, but as we always have timers, we just calculate it every time */ 788 /* we only need this for !monotonic clockor timers, but as we basically
789 always have timers, we just calculate it always */
790#if EV_USE_MONOTONIC
791 if (expect_true (have_monotonic))
792 time_update_monotonic ();
793 else
794#endif
795 {
561 ev_now = ev_time (); 796 ev_now = ev_time ();
797 now = ev_now;
798 }
562 799
563 if (flags & EVLOOP_NONBLOCK || idlecnt) 800 if (flags & EVLOOP_NONBLOCK || idlecnt)
564 block = 0.; 801 block = 0.;
565 else 802 else
566 { 803 {
567 block = MAX_BLOCKTIME; 804 block = MAX_BLOCKTIME;
568 805
569 if (timercnt) 806 if (timercnt)
570 { 807 {
571 ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; 808 ev_tstamp to = timers [0]->at - now + method_fudge;
572 if (block > to) block = to; 809 if (block > to) block = to;
573 } 810 }
574 811
575 if (periodiccnt) 812 if (periodiccnt)
576 { 813 {
… …
585 822
586 /* update ev_now, do magic */ 823 /* update ev_now, do magic */
587 time_update (); 824 time_update ();
588 825
589 /* queue pending timers and reschedule them */ 826 /* queue pending timers and reschedule them */
827 timers_reify (); /* relative timers called last */
590 periodics_reify (); /* absolute timers first */ 828 periodics_reify (); /* absolute timers called first */
591 timers_reify (); /* relative timers second */
592 829
593 /* queue idle watchers unless io or timers are pending */ 830 /* queue idle watchers unless io or timers are pending */
594 if (!pendingcnt) 831 if (!pendingcnt)
595 queue_events ((W *)idles, idlecnt, EV_IDLE); 832 queue_events ((W *)idles, idlecnt, EV_IDLE);
596 833
597 /* queue check and possibly idle watchers */ 834 /* queue check watchers, to be executed first */
835 if (checkcnt)
598 queue_events ((W *)checks, checkcnt, EV_CHECK); 836 queue_events ((W *)checks, checkcnt, EV_CHECK);
599 837
600 call_pending (); 838 call_pending ();
601 } 839 }
602 while (!ev_loop_done); 840 while (!ev_loop_done);
603 841
… …
628 head = &(*head)->next; 866 head = &(*head)->next;
629 } 867 }
630} 868}
631 869
632static void 870static void
633ev_clear (W w) 871ev_clear_pending (W w)
634{ 872{
635 if (w->pending) 873 if (w->pending)
636 { 874 {
637 pendings [w->pending - 1].w = 0; 875 pendings [ABSPRI (w)][w->pending - 1].w = 0;
638 w->pending = 0; 876 w->pending = 0;
639 } 877 }
640} 878}
641 879
642static void 880static void
643ev_start (W w, int active) 881ev_start (W w, int active)
644{ 882{
883 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
884 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
885
645 w->active = active; 886 w->active = active;
646} 887}
647 888
648static void 889static void
649ev_stop (W w) 890ev_stop (W w)
… …
652} 893}
653 894
654/*****************************************************************************/ 895/*****************************************************************************/
655 896
656void 897void
657evio_start (struct ev_io *w) 898ev_io_start (struct ev_io *w)
658{ 899{
900 int fd = w->fd;
901
659 if (ev_is_active (w)) 902 if (ev_is_active (w))
660 return; 903 return;
661 904
662 int fd = w->fd; 905 assert (("ev_io_start called with negative fd", fd >= 0));
663 906
664 ev_start ((W)w, 1); 907 ev_start ((W)w, 1);
665 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 908 array_needsize (anfds, anfdmax, fd + 1, anfds_init);
666 wlist_add ((WL *)&anfds[fd].head, (WL)w); 909 wlist_add ((WL *)&anfds[fd].head, (WL)w);
667 910
668 ++fdchangecnt; 911 fd_change (fd);
669 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
670 fdchanges [fdchangecnt - 1] = fd;
671} 912}
672 913
673void 914void
674evio_stop (struct ev_io *w) 915ev_io_stop (struct ev_io *w)
675{ 916{
676 ev_clear ((W)w); 917 ev_clear_pending ((W)w);
677 if (!ev_is_active (w)) 918 if (!ev_is_active (w))
678 return; 919 return;
679 920
680 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 921 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
681 ev_stop ((W)w); 922 ev_stop ((W)w);
682 923
683 ++fdchangecnt; 924 fd_change (w->fd);
684 array_needsize (fdchanges, fdchangemax, fdchangecnt, );
685 fdchanges [fdchangecnt - 1] = w->fd;
686} 925}
687 926
688void 927void
689evtimer_start (struct ev_timer *w) 928ev_timer_start (struct ev_timer *w)
690{ 929{
691 if (ev_is_active (w)) 930 if (ev_is_active (w))
692 return; 931 return;
693 932
694 w->at += now; 933 w->at += now;
695 934
696 assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); 935 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
697 936
698 ev_start ((W)w, ++timercnt); 937 ev_start ((W)w, ++timercnt);
699 array_needsize (timers, timermax, timercnt, ); 938 array_needsize (timers, timermax, timercnt, );
700 timers [timercnt - 1] = w; 939 timers [timercnt - 1] = w;
701 upheap ((WT *)timers, timercnt - 1); 940 upheap ((WT *)timers, timercnt - 1);
702} 941}
703 942
704void 943void
705evtimer_stop (struct ev_timer *w) 944ev_timer_stop (struct ev_timer *w)
706{ 945{
707 ev_clear ((W)w); 946 ev_clear_pending ((W)w);
708 if (!ev_is_active (w)) 947 if (!ev_is_active (w))
709 return; 948 return;
710 949
711 if (w->active < timercnt--) 950 if (w->active < timercnt--)
712 { 951 {
… …
718 957
719 ev_stop ((W)w); 958 ev_stop ((W)w);
720} 959}
721 960
722void 961void
723evtimer_again (struct ev_timer *w) 962ev_timer_again (struct ev_timer *w)
724{ 963{
725 if (ev_is_active (w)) 964 if (ev_is_active (w))
726 { 965 {
727 if (w->repeat) 966 if (w->repeat)
728 { 967 {
729 w->at = now + w->repeat; 968 w->at = now + w->repeat;
730 downheap ((WT *)timers, timercnt, w->active - 1); 969 downheap ((WT *)timers, timercnt, w->active - 1);
731 } 970 }
732 else 971 else
733 evtimer_stop (w); 972 ev_timer_stop (w);
734 } 973 }
735 else if (w->repeat) 974 else if (w->repeat)
736 evtimer_start (w); 975 ev_timer_start (w);
737} 976}
738 977
739void 978void
740evperiodic_start (struct ev_periodic *w) 979ev_periodic_start (struct ev_periodic *w)
741{ 980{
742 if (ev_is_active (w)) 981 if (ev_is_active (w))
743 return; 982 return;
744 983
745 assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); 984 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
746 985
747 /* this formula differs from the one in periodic_reify because we do not always round up */ 986 /* this formula differs from the one in periodic_reify because we do not always round up */
748 if (w->interval) 987 if (w->interval)
749 w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; 988 w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
750 989
… …
753 periodics [periodiccnt - 1] = w; 992 periodics [periodiccnt - 1] = w;
754 upheap ((WT *)periodics, periodiccnt - 1); 993 upheap ((WT *)periodics, periodiccnt - 1);
755} 994}
756 995
757void 996void
758evperiodic_stop (struct ev_periodic *w) 997ev_periodic_stop (struct ev_periodic *w)
759{ 998{
760 ev_clear ((W)w); 999 ev_clear_pending ((W)w);
761 if (!ev_is_active (w)) 1000 if (!ev_is_active (w))
762 return; 1001 return;
763 1002
764 if (w->active < periodiccnt--) 1003 if (w->active < periodiccnt--)
765 { 1004 {
… …
769 1008
770 ev_stop ((W)w); 1009 ev_stop ((W)w);
771} 1010}
772 1011
773void 1012void
774evsignal_start (struct ev_signal *w) 1013ev_signal_start (struct ev_signal *w)
775{ 1014{
776 if (ev_is_active (w)) 1015 if (ev_is_active (w))
777 return; 1016 return;
1017
1018 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
778 1019
779 ev_start ((W)w, 1); 1020 ev_start ((W)w, 1);
780 array_needsize (signals, signalmax, w->signum, signals_init); 1021 array_needsize (signals, signalmax, w->signum, signals_init);
781 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1022 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
782 1023
… …
789 sigaction (w->signum, &sa, 0); 1030 sigaction (w->signum, &sa, 0);
790 } 1031 }
791} 1032}
792 1033
793void 1034void
794evsignal_stop (struct ev_signal *w) 1035ev_signal_stop (struct ev_signal *w)
795{ 1036{
796 ev_clear ((W)w); 1037 ev_clear_pending ((W)w);
797 if (!ev_is_active (w)) 1038 if (!ev_is_active (w))
798 return; 1039 return;
799 1040
800 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1041 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
801 ev_stop ((W)w); 1042 ev_stop ((W)w);
802 1043
803 if (!signals [w->signum - 1].head) 1044 if (!signals [w->signum - 1].head)
804 signal (w->signum, SIG_DFL); 1045 signal (w->signum, SIG_DFL);
805} 1046}
806 1047
1048void
807void evidle_start (struct ev_idle *w) 1049ev_idle_start (struct ev_idle *w)
808{ 1050{
809 if (ev_is_active (w)) 1051 if (ev_is_active (w))
810 return; 1052 return;
811 1053
812 ev_start ((W)w, ++idlecnt); 1054 ev_start ((W)w, ++idlecnt);
813 array_needsize (idles, idlemax, idlecnt, ); 1055 array_needsize (idles, idlemax, idlecnt, );
814 idles [idlecnt - 1] = w; 1056 idles [idlecnt - 1] = w;
815} 1057}
816 1058
1059void
817void evidle_stop (struct ev_idle *w) 1060ev_idle_stop (struct ev_idle *w)
818{ 1061{
819 ev_clear ((W)w); 1062 ev_clear_pending ((W)w);
820 if (ev_is_active (w)) 1063 if (ev_is_active (w))
821 return; 1064 return;
822 1065
823 idles [w->active - 1] = idles [--idlecnt]; 1066 idles [w->active - 1] = idles [--idlecnt];
824 ev_stop ((W)w); 1067 ev_stop ((W)w);
825} 1068}
826 1069
1070void
1071ev_prepare_start (struct ev_prepare *w)
1072{
1073 if (ev_is_active (w))
1074 return;
1075
1076 ev_start ((W)w, ++preparecnt);
1077 array_needsize (prepares, preparemax, preparecnt, );
1078 prepares [preparecnt - 1] = w;
1079}
1080
1081void
1082ev_prepare_stop (struct ev_prepare *w)
1083{
1084 ev_clear_pending ((W)w);
1085 if (ev_is_active (w))
1086 return;
1087
1088 prepares [w->active - 1] = prepares [--preparecnt];
1089 ev_stop ((W)w);
1090}
1091
1092void
827void evcheck_start (struct ev_check *w) 1093ev_check_start (struct ev_check *w)
828{ 1094{
829 if (ev_is_active (w)) 1095 if (ev_is_active (w))
830 return; 1096 return;
831 1097
832 ev_start ((W)w, ++checkcnt); 1098 ev_start ((W)w, ++checkcnt);
833 array_needsize (checks, checkmax, checkcnt, ); 1099 array_needsize (checks, checkmax, checkcnt, );
834 checks [checkcnt - 1] = w; 1100 checks [checkcnt - 1] = w;
835} 1101}
836 1102
1103void
837void evcheck_stop (struct ev_check *w) 1104ev_check_stop (struct ev_check *w)
838{ 1105{
839 ev_clear ((W)w); 1106 ev_clear_pending ((W)w);
840 if (ev_is_active (w)) 1107 if (ev_is_active (w))
841 return; 1108 return;
842 1109
843 checks [w->active - 1] = checks [--checkcnt]; 1110 checks [w->active - 1] = checks [--checkcnt];
1111 ev_stop ((W)w);
1112}
1113
1114void
1115ev_child_start (struct ev_child *w)
1116{
1117 if (ev_is_active (w))
1118 return;
1119
1120 ev_start ((W)w, 1);
1121 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122}
1123
1124void
1125ev_child_stop (struct ev_child *w)
1126{
1127 ev_clear_pending ((W)w);
1128 if (ev_is_active (w))
1129 return;
1130
1131 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
844 ev_stop ((W)w); 1132 ev_stop ((W)w);
845} 1133}
846 1134
847/*****************************************************************************/ 1135/*****************************************************************************/
848 1136
… …
858once_cb (struct ev_once *once, int revents) 1146once_cb (struct ev_once *once, int revents)
859{ 1147{
860 void (*cb)(int revents, void *arg) = once->cb; 1148 void (*cb)(int revents, void *arg) = once->cb;
861 void *arg = once->arg; 1149 void *arg = once->arg;
862 1150
863 evio_stop (&once->io); 1151 ev_io_stop (&once->io);
864 evtimer_stop (&once->to); 1152 ev_timer_stop (&once->to);
865 free (once); 1153 free (once);
866 1154
867 cb (revents, arg); 1155 cb (revents, arg);
868} 1156}
869 1157
… …
883ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1171ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
884{ 1172{
885 struct ev_once *once = malloc (sizeof (struct ev_once)); 1173 struct ev_once *once = malloc (sizeof (struct ev_once));
886 1174
887 if (!once) 1175 if (!once)
888 cb (EV_ERROR, arg); 1176 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
889 else 1177 else
890 { 1178 {
891 once->cb = cb; 1179 once->cb = cb;
892 once->arg = arg; 1180 once->arg = arg;
893 1181
894 evw_init (&once->io, once_cb_io); 1182 ev_watcher_init (&once->io, once_cb_io);
895
896 if (fd >= 0) 1183 if (fd >= 0)
897 { 1184 {
898 evio_set (&once->io, fd, events); 1185 ev_io_set (&once->io, fd, events);
899 evio_start (&once->io); 1186 ev_io_start (&once->io);
900 } 1187 }
901 1188
902 evw_init (&once->to, once_cb_to); 1189 ev_watcher_init (&once->to, once_cb_to);
903
904 if (timeout >= 0.) 1190 if (timeout >= 0.)
905 { 1191 {
906 evtimer_set (&once->to, timeout, 0.); 1192 ev_timer_set (&once->to, timeout, 0.);
907 evtimer_start (&once->to); 1193 ev_timer_start (&once->to);
908 } 1194 }
909 } 1195 }
910} 1196}
911 1197
912/*****************************************************************************/ 1198/*****************************************************************************/
… …
923 1209
924static void 1210static void
925ocb (struct ev_timer *w, int revents) 1211ocb (struct ev_timer *w, int revents)
926{ 1212{
927 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); 1213 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
928 evtimer_stop (w); 1214 ev_timer_stop (w);
929 evtimer_start (w); 1215 ev_timer_start (w);
930} 1216}
931 1217
932static void 1218static void
933scb (struct ev_signal *w, int revents) 1219scb (struct ev_signal *w, int revents)
934{ 1220{
935 fprintf (stderr, "signal %x,%d\n", revents, w->signum); 1221 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
936 evio_stop (&wio); 1222 ev_io_stop (&wio);
937 evio_start (&wio); 1223 ev_io_start (&wio);
938} 1224}
939 1225
940static void 1226static void
941gcb (struct ev_signal *w, int revents) 1227gcb (struct ev_signal *w, int revents)
942{ 1228{
… …
946 1232
947int main (void) 1233int main (void)
948{ 1234{
949 ev_init (0); 1235 ev_init (0);
950 1236
951 evio_init (&wio, sin_cb, 0, EV_READ); 1237 ev_io_init (&wio, sin_cb, 0, EV_READ);
952 evio_start (&wio); 1238 ev_io_start (&wio);
953 1239
954 struct ev_timer t[10000]; 1240 struct ev_timer t[10000];
955 1241
956#if 0 1242#if 0
957 int i; 1243 int i;
958 for (i = 0; i < 10000; ++i) 1244 for (i = 0; i < 10000; ++i)
959 { 1245 {
960 struct ev_timer *w = t + i; 1246 struct ev_timer *w = t + i;
961 evw_init (w, ocb, i); 1247 ev_watcher_init (w, ocb, i);
962 evtimer_init_abs (w, ocb, drand48 (), 0.99775533); 1248 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
963 evtimer_start (w); 1249 ev_timer_start (w);
964 if (drand48 () < 0.5) 1250 if (drand48 () < 0.5)
965 evtimer_stop (w); 1251 ev_timer_stop (w);
966 } 1252 }
967#endif 1253#endif
968 1254
969 struct ev_timer t1; 1255 struct ev_timer t1;
970 evtimer_init (&t1, ocb, 5, 10); 1256 ev_timer_init (&t1, ocb, 5, 10);
971 evtimer_start (&t1); 1257 ev_timer_start (&t1);
972 1258
973 struct ev_signal sig; 1259 struct ev_signal sig;
974 evsignal_init (&sig, scb, SIGQUIT); 1260 ev_signal_init (&sig, scb, SIGQUIT);
975 evsignal_start (&sig); 1261 ev_signal_start (&sig);
976 1262
977 struct ev_check cw; 1263 struct ev_check cw;
978 evcheck_init (&cw, gcb); 1264 ev_check_init (&cw, gcb);
979 evcheck_start (&cw); 1265 ev_check_start (&cw);
980 1266
981 struct ev_idle iw; 1267 struct ev_idle iw;
982 evidle_init (&iw, gcb); 1268 ev_idle_init (&iw, gcb);
983 evidle_start (&iw); 1269 ev_idle_start (&iw);
984 1270
985 ev_loop (0); 1271 ev_loop (0);
986 1272
987 return 0; 1273 return 0;
988} 1274}

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