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/cvs/EV/EV.xs
Revision: 1.137
Committed: Tue Mar 16 20:43:05 2010 UTC (14 years, 2 months ago) by root
Branch: MAIN
Changes since 1.136: +9 -8 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 #include "EXTERN.h"
2 #include "perl.h"
3 #include "XSUB.h"
4
5 /* fix perl api breakage */
6 #undef signal
7 #undef sigaction
8
9 #include "schmorp.h"
10
11 /* old API compatibility */
12 static int
13 sv_fileno (SV *fh)
14 {
15 return s_fileno (fh, 0);
16 }
17
18 #define EV_STANDALONE 1
19 #define EV_PROTOTYPES 1
20 #define EV_USE_NANOSLEEP EV_USE_MONOTONIC
21 #define EV_H <ev.h>
22 #define EV_CONFIG_H error
23 #include "EV/EVAPI.h"
24
25 #define EV_SELECT_IS_WINSOCKET 0
26 #ifdef _WIN32
27 # define EV_SELECT_USE_FD_SET 0
28 # define NFDBITS PERL_NFDBITS
29 # define fd_mask Perl_fd_mask
30 #endif
31 /* due to bugs in OS X we have to use libev/ explicitly here */
32 #include "libev/ev.c"
33
34 #ifndef _WIN32
35 # include <pthread.h>
36 #endif
37
38 #define e_loop(w) INT2PTR (struct ev_loop *, SvIVX ((w)->loop))
39
40 #define WFLAG_KEEPALIVE 1
41 #define WFLAG_UNREFED 2 /* has been unref'ed */
42
43 #define UNREF(w) \
44 if (!((w)->e_flags & (WFLAG_KEEPALIVE | WFLAG_UNREFED)) \
45 && ev_is_active (w)) \
46 { \
47 ev_unref (e_loop (w)); \
48 (w)->e_flags |= WFLAG_UNREFED; \
49 }
50
51 #define REF(w) \
52 if ((w)->e_flags & WFLAG_UNREFED) \
53 { \
54 (w)->e_flags &= ~WFLAG_UNREFED; \
55 ev_ref (e_loop (w)); \
56 }
57
58 #define START(type,w) \
59 do { \
60 ev_ ## type ## _start (e_loop (w), w); \
61 UNREF (w); \
62 } while (0)
63
64 #define STOP(type,w) \
65 do { \
66 REF (w); \
67 ev_ ## type ## _stop (e_loop (w), w); \
68 } while (0)
69
70 #define RESET(type,w,seta) \
71 do { \
72 int active = ev_is_active (w); \
73 if (active) STOP (type, w); \
74 ev_ ## type ## _set seta; \
75 if (active) START (type, w); \
76 } while (0)
77
78 typedef int Signal;
79
80 /* horrible... */
81 #define CHECK_SIGNAL_CAN_START(w) \
82 do { \
83 /* dive into the internals of libev to avoid aborting in libev */ \
84 if (signals [(w)->signum - 1].loop \
85 && signals [(w)->signum - 1].loop != e_loop (w)) \
86 croak ("unable to start signal watcher, signal %d already registered in another loop", w->signum); \
87 } while (0)
88
89 #define START_SIGNAL(w) \
90 do { \
91 CHECK_SIGNAL_CAN_START (w); \
92 START (signal, w); \
93 } while (0) \
94
95 #define RESET_SIGNAL(w,seta) \
96 do { \
97 int active = ev_is_active (w); \
98 if (active) STOP (signal, w); \
99 ev_ ## signal ## _set seta; \
100 if (active) START_SIGNAL (w); \
101 } while (0)
102
103 static SV *default_loop_sv;
104
105 static struct EVAPI evapi;
106
107 static HV
108 *stash_loop,
109 *stash_watcher,
110 *stash_io,
111 *stash_timer,
112 *stash_periodic,
113 *stash_signal,
114 *stash_child,
115 *stash_stat,
116 *stash_idle,
117 *stash_prepare,
118 *stash_check,
119 *stash_embed,
120 *stash_fork,
121 *stash_async;
122
123 /////////////////////////////////////////////////////////////////////////////
124 // Event
125
126 static void e_cb (EV_P_ ev_watcher *w, int revents);
127
128 static void *
129 e_new (int size, SV *cb_sv, SV *loop)
130 {
131 SV *cv = cb_sv ? s_get_cv_croak (cb_sv) : 0;
132 ev_watcher *w;
133 SV *self = NEWSV (0, size);
134 SvPOK_only (self);
135 SvCUR_set (self, size);
136
137 w = (ev_watcher *)SvPVX (self);
138
139 ev_init (w, cv ? e_cb : 0);
140
141 w->loop = SvREFCNT_inc (SvRV (loop));
142 w->e_flags = WFLAG_KEEPALIVE;
143 w->data = 0;
144 w->fh = 0;
145 w->cb_sv = SvREFCNT_inc (cv);
146 w->self = self;
147
148 return (void *)w;
149 }
150
151 static void
152 e_destroy (void *w_)
153 {
154 ev_watcher *w = (ev_watcher *)w_;
155
156 SvREFCNT_dec (w->loop ); w->loop = 0;
157 SvREFCNT_dec (w->fh ); w->fh = 0;
158 SvREFCNT_dec (w->cb_sv); w->cb_sv = 0;
159 SvREFCNT_dec (w->data ); w->data = 0;
160 }
161
162 static SV *
163 e_bless (ev_watcher *w, HV *stash)
164 {
165 SV *rv;
166
167 if (SvOBJECT (w->self))
168 rv = newRV_inc (w->self);
169 else
170 {
171 rv = newRV_noinc (w->self);
172 sv_bless (rv, stash);
173 SvREADONLY_on (w->self);
174 }
175
176 return rv;
177 }
178
179 static SV *sv_self_cache, *sv_events_cache;
180
181 static void
182 e_cb (EV_P_ ev_watcher *w, int revents)
183 {
184 dSP;
185 I32 mark = SP - PL_stack_base;
186 SV *sv_self, *sv_events;
187
188 /* libev might have stopped the watcher */
189 if (expect_false (w->e_flags & WFLAG_UNREFED)
190 && !ev_is_active (w))
191 REF (w);
192
193 if (expect_true (sv_self_cache))
194 {
195 sv_self = sv_self_cache; sv_self_cache = 0;
196 SvRV_set (sv_self, SvREFCNT_inc_NN (w->self));
197 }
198 else
199 {
200 sv_self = newRV_inc (w->self); /* w->self MUST be blessed by now */
201 SvREADONLY_on (sv_self);
202 }
203
204 if (expect_true (sv_events_cache))
205 {
206 sv_events = sv_events_cache; sv_events_cache = 0;
207 SvIV_set (sv_events, revents);
208 }
209 else
210 {
211 sv_events = newSViv (revents);
212 SvREADONLY_on (sv_events);
213 }
214
215 PUSHMARK (SP);
216 EXTEND (SP, 2);
217 PUSHs (sv_self);
218 PUSHs (sv_events);
219
220 PUTBACK;
221 call_sv (w->cb_sv, G_DISCARD | G_VOID | G_EVAL);
222
223 if (expect_false (SvREFCNT (sv_self) != 1 || sv_self_cache))
224 SvREFCNT_dec (sv_self);
225 else
226 {
227 SvREFCNT_dec (SvRV (sv_self));
228 SvRV_set (sv_self, &PL_sv_undef);
229 sv_self_cache = sv_self;
230 }
231
232 if (expect_false (SvREFCNT (sv_events) != 1 || sv_events_cache))
233 SvREFCNT_dec (sv_events);
234 else
235 sv_events_cache = sv_events;
236
237 if (expect_false (SvTRUE (ERRSV)))
238 {
239 SPAGAIN;
240 PUSHMARK (SP);
241 PUTBACK;
242 call_sv (get_sv ("EV::DIED", 1), G_DISCARD | G_VOID | G_EVAL | G_KEEPERR);
243 }
244
245 SP = PL_stack_base + mark;
246 PUTBACK;
247 }
248
249 static void
250 e_once_cb (int revents, void *arg)
251 {
252 dSP;
253 I32 mark = SP - PL_stack_base;
254 SV *sv_events;
255
256 if (sv_events_cache)
257 {
258 sv_events = sv_events_cache; sv_events_cache = 0;
259 SvIV_set (sv_events, revents);
260 }
261 else
262 sv_events = newSViv (revents);
263
264 PUSHMARK (SP);
265 XPUSHs (sv_events);
266
267 PUTBACK;
268 call_sv ((SV *)arg, G_DISCARD | G_VOID | G_EVAL);
269
270 SvREFCNT_dec ((SV *)arg);
271
272 if (sv_events_cache)
273 SvREFCNT_dec (sv_events);
274 else
275 sv_events_cache = sv_events;
276
277 if (SvTRUE (ERRSV))
278 {
279 SPAGAIN;
280 PUSHMARK (SP);
281 PUTBACK;
282 call_sv (get_sv ("EV::DIED", 1), G_DISCARD | G_VOID | G_EVAL | G_KEEPERR);
283 }
284
285 SP = PL_stack_base + mark;
286 PUTBACK;
287 }
288
289 static ev_tstamp
290 e_periodic_cb (ev_periodic *w, ev_tstamp now)
291 {
292 ev_tstamp retval;
293 int count;
294 dSP;
295
296 ENTER;
297 SAVETMPS;
298
299 PUSHMARK (SP);
300 EXTEND (SP, 2);
301 PUSHs (newRV_inc (w->self)); /* w->self MUST be blessed by now */
302 PUSHs (newSVnv (now));
303
304 PUTBACK;
305 count = call_sv (w->fh, G_SCALAR | G_EVAL);
306 SPAGAIN;
307
308 if (SvTRUE (ERRSV))
309 {
310 PUSHMARK (SP);
311 PUTBACK;
312 call_sv (get_sv ("EV::DIED", 1), G_DISCARD | G_VOID | G_EVAL | G_KEEPERR);
313 SPAGAIN;
314 }
315
316 if (count > 0)
317 {
318 retval = SvNV (TOPs);
319
320 if (retval < now)
321 retval = now;
322 }
323 else
324 retval = now;
325
326 FREETMPS;
327 LEAVE;
328
329 return retval;
330 }
331
332 #define CHECK_REPEAT(repeat) if (repeat < 0.) \
333 croak (# repeat " value must be >= 0");
334
335 #define CHECK_FD(fh,fd) if ((fd) < 0) \
336 croak ("illegal file descriptor or filehandle (either no attached file descriptor or illegal value): %s", SvPV_nolen (fh));
337
338 #define CHECK_SIG(sv,num) if ((num) < 0) \
339 croak ("illegal signal number or name: %s", SvPV_nolen (sv));
340
341 /////////////////////////////////////////////////////////////////////////////
342 // XS interface functions
343
344 MODULE = EV PACKAGE = EV PREFIX = ev_
345
346 PROTOTYPES: ENABLE
347
348 BOOT:
349 {
350 HV *stash = gv_stashpv ("EV", 1);
351
352 static const struct {
353 const char *name;
354 IV iv;
355 } *civ, const_iv[] = {
356 # define const_iv(pfx, name) { # name, (IV) pfx ## name },
357 const_iv (EV_, MINPRI)
358 const_iv (EV_, MAXPRI)
359
360 const_iv (EV_, UNDEF)
361 const_iv (EV_, NONE)
362 const_iv (EV_, READ)
363 const_iv (EV_, WRITE)
364 const_iv (EV_, IO)
365 const_iv (EV_, TIMEOUT) /* deprecated */
366 const_iv (EV_, TIMER)
367 const_iv (EV_, PERIODIC)
368 const_iv (EV_, SIGNAL)
369 const_iv (EV_, CHILD)
370 const_iv (EV_, STAT)
371 const_iv (EV_, IDLE)
372 const_iv (EV_, PREPARE)
373 const_iv (EV_, CHECK)
374 const_iv (EV_, EMBED)
375 const_iv (EV_, FORK)
376 const_iv (EV_, ASYNC)
377 const_iv (EV_, CUSTOM)
378 const_iv (EV_, ERROR)
379
380 const_iv (EV, LOOP_NONBLOCK)
381 const_iv (EV, LOOP_ONESHOT)
382
383 const_iv (EV, UNLOOP_CANCEL)
384 const_iv (EV, UNLOOP_ONE)
385 const_iv (EV, UNLOOP_ALL)
386
387 const_iv (EV, BACKEND_SELECT)
388 const_iv (EV, BACKEND_POLL)
389 const_iv (EV, BACKEND_EPOLL)
390 const_iv (EV, BACKEND_KQUEUE)
391 const_iv (EV, BACKEND_DEVPOLL)
392 const_iv (EV, BACKEND_PORT)
393 const_iv (EV, BACKEND_ALL)
394 const_iv (EV, FLAG_AUTO)
395 const_iv (EV, FLAG_FORKCHECK)
396 const_iv (EV, FLAG_SIGNALFD)
397 const_iv (EV, FLAG_NOENV)
398 const_iv (EV, FLAG_NOSIGFD) /* compatibility, always 0 */
399 const_iv (EV, FLAG_NOINOTIFY)
400
401 const_iv (EV_, VERSION_MAJOR)
402 const_iv (EV_, VERSION_MINOR)
403 };
404
405 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
406 newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
407
408 stash_loop = gv_stashpv ("EV::Loop" , 1);
409 stash_watcher = gv_stashpv ("EV::Watcher" , 1);
410 stash_io = gv_stashpv ("EV::IO" , 1);
411 stash_timer = gv_stashpv ("EV::Timer" , 1);
412 stash_periodic = gv_stashpv ("EV::Periodic", 1);
413 stash_signal = gv_stashpv ("EV::Signal" , 1);
414 stash_idle = gv_stashpv ("EV::Idle" , 1);
415 stash_prepare = gv_stashpv ("EV::Prepare" , 1);
416 stash_check = gv_stashpv ("EV::Check" , 1);
417 stash_child = gv_stashpv ("EV::Child" , 1);
418 stash_embed = gv_stashpv ("EV::Embed" , 1);
419 stash_stat = gv_stashpv ("EV::Stat" , 1);
420 stash_fork = gv_stashpv ("EV::Fork" , 1);
421 stash_async = gv_stashpv ("EV::Async" , 1);
422
423 {
424 SV *sv = perl_get_sv ("EV::API", TRUE);
425 perl_get_sv ("EV::API", TRUE); /* silence 5.10 warning */
426
427 /* the poor man's shared library emulator */
428 evapi.ver = EV_API_VERSION;
429 evapi.rev = EV_API_REVISION;
430 evapi.sv_fileno = sv_fileno;
431 evapi.sv_signum = s_signum;
432 evapi.supported_backends = ev_supported_backends ();
433 evapi.recommended_backends = ev_recommended_backends ();
434 evapi.embeddable_backends = ev_embeddable_backends ();
435 evapi.time_ = ev_time;
436 evapi.sleep_ = ev_sleep;
437 evapi.loop_new = ev_loop_new;
438 evapi.loop_destroy = ev_loop_destroy;
439 evapi.loop_fork = ev_loop_fork;
440 evapi.iteration = ev_iteration;
441 evapi.depth = ev_depth;
442 evapi.set_userdata = ev_set_userdata;
443 evapi.userdata = ev_userdata;
444 evapi.now = ev_now;
445 evapi.now_update = ev_now_update;
446 evapi.suspend = ev_suspend;
447 evapi.resume = ev_resume;
448 evapi.backend = ev_backend;
449 evapi.unloop = ev_unloop;
450 evapi.invoke_pending = ev_invoke_pending;
451 evapi.pending_count = ev_pending_count;
452 evapi.verify = ev_verify;
453 evapi.set_loop_release_cb = ev_set_loop_release_cb;
454 evapi.set_invoke_pending_cb= ev_set_invoke_pending_cb;
455 evapi.ref = ev_ref;
456 evapi.unref = ev_unref;
457 evapi.loop = ev_loop;
458 evapi.once = ev_once;
459 evapi.io_start = ev_io_start;
460 evapi.io_stop = ev_io_stop;
461 evapi.timer_start = ev_timer_start;
462 evapi.timer_stop = ev_timer_stop;
463 evapi.timer_again = ev_timer_again;
464 evapi.timer_remaining = ev_timer_remaining;
465 evapi.periodic_start = ev_periodic_start;
466 evapi.periodic_stop = ev_periodic_stop;
467 evapi.signal_start = ev_signal_start;
468 evapi.signal_stop = ev_signal_stop;
469 evapi.idle_start = ev_idle_start;
470 evapi.idle_stop = ev_idle_stop;
471 evapi.prepare_start = ev_prepare_start;
472 evapi.prepare_stop = ev_prepare_stop;
473 evapi.check_start = ev_check_start;
474 evapi.check_stop = ev_check_stop;
475 evapi.child_start = ev_child_start;
476 evapi.child_stop = ev_child_stop;
477 evapi.stat_start = ev_stat_start;
478 evapi.stat_stop = ev_stat_stop;
479 evapi.stat_stat = ev_stat_stat;
480 evapi.embed_start = ev_embed_start;
481 evapi.embed_stop = ev_embed_stop;
482 evapi.embed_sweep = ev_embed_sweep;
483 evapi.fork_start = ev_fork_start;
484 evapi.fork_stop = ev_fork_stop;
485 evapi.async_start = ev_async_start;
486 evapi.async_stop = ev_async_stop;
487 evapi.async_send = ev_async_send;
488 evapi.clear_pending = ev_clear_pending;
489 evapi.invoke = ev_invoke;
490
491 sv_setiv (sv, (IV)&evapi);
492 SvREADONLY_on (sv);
493 }
494 #ifndef _WIN32
495 pthread_atfork (0, 0, ev_default_fork);
496 #endif
497 }
498
499 SV *ev_default_loop (unsigned int flags = 0)
500 CODE:
501 {
502 if (!default_loop_sv)
503 {
504 evapi.default_loop = ev_default_loop (flags);
505
506 if (!evapi.default_loop)
507 XSRETURN_UNDEF;
508
509 default_loop_sv = sv_bless (newRV_noinc (newSViv (PTR2IV (evapi.default_loop))), stash_loop);
510 }
511
512 RETVAL = newSVsv (default_loop_sv);
513 }
514 OUTPUT:
515 RETVAL
516
517 void ev_default_destroy ()
518 CODE:
519 ev_default_destroy ();
520 SvREFCNT_dec (default_loop_sv);
521 default_loop_sv = 0;
522
523 unsigned int ev_supported_backends ()
524
525 unsigned int ev_recommended_backends ()
526
527 unsigned int ev_embeddable_backends ()
528
529 void ev_sleep (NV interval)
530
531 NV ev_time ()
532
533 NV ev_now ()
534 C_ARGS: evapi.default_loop
535
536 void ev_now_update ()
537 C_ARGS: evapi.default_loop
538
539 void ev_suspend ()
540 C_ARGS: evapi.default_loop
541
542 void ev_resume ()
543 C_ARGS: evapi.default_loop
544
545 unsigned int ev_backend ()
546 C_ARGS: evapi.default_loop
547
548 void ev_verify ()
549 C_ARGS: evapi.default_loop
550
551 unsigned int ev_iteration ()
552 C_ARGS: evapi.default_loop
553
554 unsigned int ev_depth ()
555 C_ARGS: evapi.default_loop
556
557 void ev_set_io_collect_interval (NV interval)
558 C_ARGS: evapi.default_loop, interval
559
560 void ev_set_timeout_collect_interval (NV interval)
561 C_ARGS: evapi.default_loop, interval
562
563 void ev_loop (int flags = 0)
564 C_ARGS: evapi.default_loop, flags
565
566 void ev_unloop (int how = EVUNLOOP_ONE)
567 C_ARGS: evapi.default_loop, how
568
569 void ev_feed_fd_event (int fd, int revents = EV_NONE)
570 C_ARGS: evapi.default_loop, fd, revents
571
572 void ev_feed_signal_event (SV *signal)
573 CODE:
574 {
575 Signal signum = s_signum (signal);
576 CHECK_SIG (signal, signum);
577
578 ev_feed_signal_event (evapi.default_loop, signum);
579 }
580
581 unsigned int ev_pending_count ()
582 C_ARGS: evapi.default_loop
583
584 void ev_invoke_pending ()
585 C_ARGS: evapi.default_loop
586
587 ev_io *io (SV *fh, int events, SV *cb)
588 ALIAS:
589 io_ns = 1
590 _ae_io = 2
591 CODE:
592 {
593 int fd = s_fileno (fh, events & EV_WRITE);
594 CHECK_FD (fh, fd);
595
596 if (ix == 2)
597 {
598 ix = 0;
599 events = events ? EV_WRITE : EV_READ;
600 }
601
602 RETVAL = e_new (sizeof (ev_io), cb, default_loop_sv);
603 RETVAL->fh = newSVsv (fh);
604 ev_io_set (RETVAL, fd, events);
605 if (!ix) START (io, RETVAL);
606 }
607 OUTPUT:
608 RETVAL
609
610 ev_timer *timer (NV after, NV repeat, SV *cb)
611 ALIAS:
612 timer_ns = 1
613 INIT:
614 CHECK_REPEAT (repeat);
615 CODE:
616 RETVAL = e_new (sizeof (ev_timer), cb, default_loop_sv);
617 ev_timer_set (RETVAL, after, repeat);
618 if (!ix) START (timer, RETVAL);
619 OUTPUT:
620 RETVAL
621
622 SV *periodic (NV at, NV interval, SV *reschedule_cb, SV *cb)
623 ALIAS:
624 periodic_ns = 1
625 INIT:
626 CHECK_REPEAT (interval);
627 CODE:
628 {
629 ev_periodic *w;
630 w = e_new (sizeof (ev_periodic), cb, default_loop_sv);
631 w->fh = SvTRUE (reschedule_cb) ? newSVsv (reschedule_cb) : 0;
632 ev_periodic_set (w, at, interval, w->fh ? e_periodic_cb : 0);
633 RETVAL = e_bless ((ev_watcher *)w, stash_periodic);
634 if (!ix) START (periodic, w);
635 }
636 OUTPUT:
637 RETVAL
638
639 ev_signal *signal (SV *signal, SV *cb)
640 ALIAS:
641 signal_ns = 1
642 CODE:
643 {
644 Signal signum = s_signum (signal);
645 CHECK_SIG (signal, signum);
646
647 RETVAL = e_new (sizeof (ev_signal), cb, default_loop_sv);
648 ev_signal_set (RETVAL, signum);
649 if (!ix) START_SIGNAL (RETVAL);
650 }
651 OUTPUT:
652 RETVAL
653
654 ev_idle *idle (SV *cb)
655 ALIAS:
656 idle_ns = 1
657 CODE:
658 RETVAL = e_new (sizeof (ev_idle), cb, default_loop_sv);
659 ev_idle_set (RETVAL);
660 if (!ix) START (idle, RETVAL);
661 OUTPUT:
662 RETVAL
663
664 ev_prepare *prepare (SV *cb)
665 ALIAS:
666 prepare_ns = 1
667 CODE:
668 RETVAL = e_new (sizeof (ev_prepare), cb, default_loop_sv);
669 ev_prepare_set (RETVAL);
670 if (!ix) START (prepare, RETVAL);
671 OUTPUT:
672 RETVAL
673
674 ev_check *check (SV *cb)
675 ALIAS:
676 check_ns = 1
677 CODE:
678 RETVAL = e_new (sizeof (ev_check), cb, default_loop_sv);
679 ev_check_set (RETVAL);
680 if (!ix) START (check, RETVAL);
681 OUTPUT:
682 RETVAL
683
684 ev_fork *fork (SV *cb)
685 ALIAS:
686 fork_ns = 1
687 CODE:
688 RETVAL = e_new (sizeof (ev_fork), cb, default_loop_sv);
689 ev_fork_set (RETVAL);
690 if (!ix) START (fork, RETVAL);
691 OUTPUT:
692 RETVAL
693
694 ev_child *child (int pid, int trace, SV *cb)
695 ALIAS:
696 child_ns = 1
697 CODE:
698 RETVAL = e_new (sizeof (ev_child), cb, default_loop_sv);
699 ev_child_set (RETVAL, pid, trace);
700 if (!ix) START (child, RETVAL);
701 OUTPUT:
702 RETVAL
703
704 ev_stat *stat (SV *path, NV interval, SV *cb)
705 ALIAS:
706 stat_ns = 1
707 CODE:
708 RETVAL = e_new (sizeof (ev_stat), cb, default_loop_sv);
709 RETVAL->fh = newSVsv (path);
710 ev_stat_set (RETVAL, SvPVbyte_nolen (RETVAL->fh), interval);
711 if (!ix) START (stat, RETVAL);
712 OUTPUT:
713 RETVAL
714
715 ev_embed *embed (struct ev_loop *loop, SV *cb = 0)
716 ALIAS:
717 embed_ns = 1
718 CODE:
719 {
720 if (!(ev_backend (loop) & ev_embeddable_backends ()))
721 croak ("passed loop is not embeddable via EV::embed,");
722
723 RETVAL = e_new (sizeof (ev_embed), cb, default_loop_sv);
724 RETVAL->fh = newSVsv (ST (0));
725 ev_embed_set (RETVAL, loop);
726 if (!ix) START (embed, RETVAL);
727 }
728 OUTPUT:
729 RETVAL
730
731 ev_async *async (SV *cb)
732 ALIAS:
733 async_ns = 1
734 CODE:
735 RETVAL = e_new (sizeof (ev_async), cb, default_loop_sv);
736 ev_async_set (RETVAL);
737 if (!ix) START (async, RETVAL);
738 OUTPUT:
739 RETVAL
740
741 void once (SV *fh, int events, SV *timeout, SV *cb)
742 CODE:
743 ev_once (
744 evapi.default_loop,
745 s_fileno (fh, events & EV_WRITE), events,
746 SvOK (timeout) ? SvNV (timeout) : -1.,
747 e_once_cb,
748 newSVsv (cb)
749 );
750
751 PROTOTYPES: DISABLE
752
753 MODULE = EV PACKAGE = EV::Watcher PREFIX = ev_
754
755 int ev_is_active (ev_watcher *w)
756
757 int ev_is_pending (ev_watcher *w)
758
759 void ev_invoke (ev_watcher *w, int revents = EV_NONE)
760 C_ARGS: e_loop (w), w, revents
761
762 int ev_clear_pending (ev_watcher *w)
763 C_ARGS: e_loop (w), w
764
765 void ev_feed_event (ev_watcher *w, int revents = EV_NONE)
766 C_ARGS: e_loop (w), w, revents
767
768 int keepalive (ev_watcher *w, int new_value = 0)
769 CODE:
770 {
771 RETVAL = w->e_flags & WFLAG_KEEPALIVE;
772 new_value = new_value ? WFLAG_KEEPALIVE : 0;
773
774 if (items > 1 && ((new_value ^ w->e_flags) & WFLAG_KEEPALIVE))
775 {
776 w->e_flags = (w->e_flags & ~WFLAG_KEEPALIVE) | new_value;
777 REF (w);
778 UNREF (w);
779 }
780 }
781 OUTPUT:
782 RETVAL
783
784 SV *cb (ev_watcher *w, SV *new_cb = 0)
785 CODE:
786 {
787 if (items > 1)
788 {
789 new_cb = s_get_cv_croak (new_cb);
790 RETVAL = newRV_noinc (w->cb_sv);
791 w->cb_sv = SvREFCNT_inc (new_cb);
792 }
793 else
794 RETVAL = newRV_inc (w->cb_sv);
795 }
796 OUTPUT:
797 RETVAL
798
799 SV *data (ev_watcher *w, SV *new_data = 0)
800 CODE:
801 {
802 RETVAL = w->data ? newSVsv (w->data) : &PL_sv_undef;
803
804 if (items > 1)
805 {
806 SvREFCNT_dec (w->data);
807 w->data = newSVsv (new_data);
808 }
809 }
810 OUTPUT:
811 RETVAL
812
813 SV *loop (ev_watcher *w)
814 CODE:
815 RETVAL = newRV_inc (w->loop);
816 OUTPUT:
817 RETVAL
818
819 int priority (ev_watcher *w, int new_priority = 0)
820 CODE:
821 {
822 RETVAL = w->priority;
823
824 if (items > 1)
825 {
826 int active = ev_is_active (w);
827
828 if (active)
829 {
830 /* grrr. */
831 PUSHMARK (SP);
832 XPUSHs (ST (0));
833 PUTBACK;
834 call_method ("stop", G_DISCARD | G_VOID);
835 }
836
837 ev_set_priority (w, new_priority);
838
839 if (active)
840 {
841 PUSHMARK (SP);
842 XPUSHs (ST (0));
843 PUTBACK;
844 call_method ("start", G_DISCARD | G_VOID);
845 }
846 }
847 }
848 OUTPUT:
849 RETVAL
850
851 MODULE = EV PACKAGE = EV::IO PREFIX = ev_io_
852
853 void ev_io_start (ev_io *w)
854 CODE:
855 START (io, w);
856
857 void ev_io_stop (ev_io *w)
858 CODE:
859 STOP (io, w);
860
861 void DESTROY (ev_io *w)
862 CODE:
863 STOP (io, w);
864 e_destroy (w);
865
866 void set (ev_io *w, SV *fh, int events)
867 CODE:
868 {
869 int fd = s_fileno (fh, events & EV_WRITE);
870 CHECK_FD (fh, fd);
871
872 sv_setsv (w->fh, fh);
873 RESET (io, w, (w, fd, events));
874 }
875
876 SV *fh (ev_io *w, SV *new_fh = 0)
877 CODE:
878 {
879 if (items > 1)
880 {
881 int fd = s_fileno (new_fh, w->events & EV_WRITE);
882 CHECK_FD (new_fh, fd);
883
884 RETVAL = w->fh;
885 w->fh = newSVsv (new_fh);
886
887 RESET (io, w, (w, fd, w->events));
888 }
889 else
890 RETVAL = newSVsv (w->fh);
891 }
892 OUTPUT:
893 RETVAL
894
895 int events (ev_io *w, int new_events = EV_UNDEF)
896 CODE:
897 {
898 RETVAL = w->events;
899
900 if (items > 1)
901 RESET (io, w, (w, w->fd, new_events));
902 }
903 OUTPUT:
904 RETVAL
905
906 MODULE = EV PACKAGE = EV::Signal PREFIX = ev_signal_
907
908 void ev_signal_start (ev_signal *w)
909 CODE:
910 START_SIGNAL (w);
911
912 void ev_signal_stop (ev_signal *w)
913 CODE:
914 STOP (signal, w);
915
916 void DESTROY (ev_signal *w)
917 CODE:
918 STOP (signal, w);
919 e_destroy (w);
920
921 void set (ev_signal *w, SV *signal)
922 CODE:
923 {
924 Signal signum = s_signum (signal);
925 CHECK_SIG (signal, signum);
926
927 RESET_SIGNAL (w, (w, signum));
928 }
929
930 int signal (ev_signal *w, SV *new_signal = 0)
931 CODE:
932 {
933 RETVAL = w->signum;
934
935 if (items > 1)
936 {
937 Signal signum = s_signum (new_signal);
938 CHECK_SIG (new_signal, signum);
939
940 RESET_SIGNAL (w, (w, signum));
941 }
942 }
943 OUTPUT:
944 RETVAL
945
946 MODULE = EV PACKAGE = EV::Timer PREFIX = ev_timer_
947
948 void ev_timer_start (ev_timer *w)
949 INIT:
950 CHECK_REPEAT (w->repeat);
951 CODE:
952 START (timer, w);
953
954 void ev_timer_stop (ev_timer *w)
955 CODE:
956 STOP (timer, w);
957
958 void ev_timer_again (ev_timer *w)
959 INIT:
960 CHECK_REPEAT (w->repeat);
961 CODE:
962 ev_timer_again (e_loop (w), w);
963 UNREF (w);
964
965 NV ev_timer_remaining (ev_timer *w)
966 C_ARGS: e_loop (w), w
967
968 void DESTROY (ev_timer *w)
969 CODE:
970 STOP (timer, w);
971 e_destroy (w);
972
973 void set (ev_timer *w, NV after, NV repeat = 0.)
974 INIT:
975 CHECK_REPEAT (repeat);
976 CODE:
977 RESET (timer, w, (w, after, repeat));
978
979 MODULE = EV PACKAGE = EV::Periodic PREFIX = ev_periodic_
980
981 void ev_periodic_start (ev_periodic *w)
982 INIT:
983 CHECK_REPEAT (w->interval);
984 CODE:
985 START (periodic, w);
986
987 void ev_periodic_stop (ev_periodic *w)
988 CODE:
989 STOP (periodic, w);
990
991 void ev_periodic_again (ev_periodic *w)
992 CODE:
993 ev_periodic_again (e_loop (w), w);
994 UNREF (w);
995
996 void DESTROY (ev_periodic *w)
997 CODE:
998 STOP (periodic, w);
999 e_destroy (w);
1000
1001 void set (ev_periodic *w, NV at, NV interval = 0., SV *reschedule_cb = &PL_sv_undef)
1002 INIT:
1003 CHECK_REPEAT (interval);
1004 CODE:
1005 {
1006 SvREFCNT_dec (w->fh);
1007 w->fh = SvTRUE (reschedule_cb) ? newSVsv (reschedule_cb) : 0;
1008
1009 RESET (periodic, w, (w, at, interval, w->fh ? e_periodic_cb : 0));
1010 }
1011
1012 NV at (ev_periodic *w)
1013 CODE:
1014 RETVAL = ev_periodic_at (w);
1015 OUTPUT:
1016 RETVAL
1017
1018 MODULE = EV PACKAGE = EV::Idle PREFIX = ev_idle_
1019
1020 void ev_idle_start (ev_idle *w)
1021 CODE:
1022 START (idle, w);
1023
1024 void ev_idle_stop (ev_idle *w)
1025 CODE:
1026 STOP (idle, w);
1027
1028 void DESTROY (ev_idle *w)
1029 CODE:
1030 STOP (idle, w);
1031 e_destroy (w);
1032
1033 MODULE = EV PACKAGE = EV::Prepare PREFIX = ev_prepare_
1034
1035 void ev_prepare_start (ev_prepare *w)
1036 CODE:
1037 START (prepare, w);
1038
1039 void ev_prepare_stop (ev_prepare *w)
1040 CODE:
1041 STOP (prepare, w);
1042
1043 void DESTROY (ev_prepare *w)
1044 CODE:
1045 STOP (prepare, w);
1046 e_destroy (w);
1047
1048 MODULE = EV PACKAGE = EV::Check PREFIX = ev_check_
1049
1050 void ev_check_start (ev_check *w)
1051 CODE:
1052 START (check, w);
1053
1054 void ev_check_stop (ev_check *w)
1055 CODE:
1056 STOP (check, w);
1057
1058 void DESTROY (ev_check *w)
1059 CODE:
1060 STOP (check, w);
1061 e_destroy (w);
1062
1063 MODULE = EV PACKAGE = EV::Fork PREFIX = ev_fork_
1064
1065 void ev_fork_start (ev_fork *w)
1066 CODE:
1067 START (fork, w);
1068
1069 void ev_fork_stop (ev_fork *w)
1070 CODE:
1071 STOP (fork, w);
1072
1073 void DESTROY (ev_fork *w)
1074 CODE:
1075 STOP (fork, w);
1076 e_destroy (w);
1077
1078 MODULE = EV PACKAGE = EV::Child PREFIX = ev_child_
1079
1080 void ev_child_start (ev_child *w)
1081 CODE:
1082 START (child, w);
1083
1084 void ev_child_stop (ev_child *w)
1085 CODE:
1086 STOP (child, w);
1087
1088 void DESTROY (ev_child *w)
1089 CODE:
1090 STOP (child, w);
1091 e_destroy (w);
1092
1093 void set (ev_child *w, int pid, int trace)
1094 CODE:
1095 RESET (child, w, (w, pid, trace));
1096
1097 int pid (ev_child *w)
1098 ALIAS:
1099 rpid = 1
1100 rstatus = 2
1101 CODE:
1102 RETVAL = ix == 0 ? w->pid
1103 : ix == 1 ? w->rpid
1104 : w->rstatus;
1105 OUTPUT:
1106 RETVAL
1107
1108 MODULE = EV PACKAGE = EV::Stat PREFIX = ev_stat_
1109
1110 void ev_stat_start (ev_stat *w)
1111 CODE:
1112 START (stat, w);
1113
1114 void ev_stat_stop (ev_stat *w)
1115 CODE:
1116 STOP (stat, w);
1117
1118 void DESTROY (ev_stat *w)
1119 CODE:
1120 STOP (stat, w);
1121 e_destroy (w);
1122
1123 void set (ev_stat *w, SV *path, NV interval)
1124 CODE:
1125 {
1126 sv_setsv (w->fh, path);
1127 RESET (stat, w, (w, SvPVbyte_nolen (w->fh), interval));
1128 }
1129
1130 SV *path (ev_stat *w, SV *new_path = 0)
1131 CODE:
1132 {
1133 RETVAL = SvREFCNT_inc (w->fh);
1134
1135 if (items > 1)
1136 {
1137 SvREFCNT_dec (w->fh);
1138 w->fh = newSVsv (new_path);
1139 RESET (stat, w, (w, SvPVbyte_nolen (w->fh), w->interval));
1140 }
1141 }
1142 OUTPUT:
1143 RETVAL
1144
1145 NV interval (ev_stat *w, NV new_interval = 0.)
1146 CODE:
1147 {
1148 RETVAL = w->interval;
1149
1150 if (items > 1)
1151 RESET (stat, w, (w, SvPVbyte_nolen (w->fh), new_interval));
1152 }
1153 OUTPUT:
1154 RETVAL
1155
1156 void prev (ev_stat *w)
1157 ALIAS:
1158 stat = 1
1159 attr = 2
1160 PPCODE:
1161 {
1162 ev_statdata *s = ix ? &w->attr : &w->prev;
1163
1164 if (ix == 1)
1165 ev_stat_stat (e_loop (w), w);
1166 else if (!s->st_nlink)
1167 errno = ENOENT;
1168
1169 PL_statcache.st_dev = s->st_nlink;
1170 PL_statcache.st_ino = s->st_ino;
1171 PL_statcache.st_mode = s->st_mode;
1172 PL_statcache.st_nlink = s->st_nlink;
1173 PL_statcache.st_uid = s->st_uid;
1174 PL_statcache.st_gid = s->st_gid;
1175 PL_statcache.st_rdev = s->st_rdev;
1176 PL_statcache.st_size = s->st_size;
1177 PL_statcache.st_atime = s->st_atime;
1178 PL_statcache.st_mtime = s->st_mtime;
1179 PL_statcache.st_ctime = s->st_ctime;
1180
1181 if (GIMME_V == G_SCALAR)
1182 XPUSHs (boolSV (s->st_nlink));
1183 else if (GIMME_V == G_ARRAY && s->st_nlink)
1184 {
1185 EXTEND (SP, 13);
1186 PUSHs (sv_2mortal (newSViv (s->st_dev)));
1187 PUSHs (sv_2mortal (newSViv (s->st_ino)));
1188 PUSHs (sv_2mortal (newSVuv (s->st_mode)));
1189 PUSHs (sv_2mortal (newSVuv (s->st_nlink)));
1190 PUSHs (sv_2mortal (newSViv (s->st_uid)));
1191 PUSHs (sv_2mortal (newSViv (s->st_gid)));
1192 PUSHs (sv_2mortal (newSViv (s->st_rdev)));
1193 PUSHs (sv_2mortal (newSVnv ((NV)s->st_size)));
1194 PUSHs (sv_2mortal (newSVnv (s->st_atime)));
1195 PUSHs (sv_2mortal (newSVnv (s->st_mtime)));
1196 PUSHs (sv_2mortal (newSVnv (s->st_ctime)));
1197 PUSHs (sv_2mortal (newSVuv (4096)));
1198 PUSHs (sv_2mortal (newSVnv ((NV)((s->st_size + 4095) / 4096))));
1199 }
1200 }
1201
1202 MODULE = EV PACKAGE = EV::Embed PREFIX = ev_embed_
1203
1204 void ev_embed_start (ev_embed *w)
1205 CODE:
1206 START (embed, w);
1207
1208 void ev_embed_stop (ev_embed *w)
1209 CODE:
1210 STOP (embed, w);
1211
1212 void DESTROY (ev_embed *w)
1213 CODE:
1214 STOP (embed, w);
1215 e_destroy (w);
1216
1217 void set (ev_embed *w, struct ev_loop *loop)
1218 CODE:
1219 {
1220 sv_setsv (w->fh, ST (1));
1221 RESET (embed, w, (w, loop));
1222 }
1223
1224 SV *other (ev_embed *w)
1225 CODE:
1226 RETVAL = newSVsv (w->fh);
1227 OUTPUT:
1228 RETVAL
1229
1230 void ev_embed_sweep (ev_embed *w)
1231 C_ARGS: e_loop (w), w
1232
1233 MODULE = EV PACKAGE = EV::Async PREFIX = ev_async_
1234
1235 void ev_async_start (ev_async *w)
1236 CODE:
1237 START (async, w);
1238
1239 void ev_async_stop (ev_async *w)
1240 CODE:
1241 STOP (async, w);
1242
1243 void DESTROY (ev_async *w)
1244 CODE:
1245 STOP (async, w);
1246 e_destroy (w);
1247
1248 void ev_async_send (ev_async *w)
1249 C_ARGS: e_loop (w), w
1250
1251 SV *ev_async_async_pending (ev_async *w)
1252 CODE:
1253 RETVAL = boolSV (ev_async_pending (w));
1254 OUTPUT:
1255 RETVAL
1256
1257 MODULE = EV PACKAGE = EV::Loop PREFIX = ev_
1258
1259 SV *new (SV *klass, unsigned int flags = 0)
1260 CODE:
1261 {
1262 struct ev_loop *loop = ev_loop_new (flags);
1263
1264 if (!loop)
1265 XSRETURN_UNDEF;
1266
1267 RETVAL = sv_bless (newRV_noinc (newSViv (PTR2IV (loop))), stash_loop);
1268 }
1269 OUTPUT:
1270 RETVAL
1271
1272 void DESTROY (struct ev_loop *loop)
1273 CODE:
1274 if (loop != evapi.default_loop) /* global destruction sucks */
1275 ev_loop_destroy (loop);
1276
1277 void ev_loop_fork (struct ev_loop *loop)
1278
1279 void ev_verify (struct ev_loop *loop)
1280
1281 NV ev_now (struct ev_loop *loop)
1282
1283 void ev_now_update (struct ev_loop *loop)
1284
1285 void ev_suspend (struct ev_loop *loop)
1286
1287 void ev_resume (struct ev_loop *loop)
1288
1289 void ev_set_io_collect_interval (struct ev_loop *loop, NV interval)
1290
1291 void ev_set_timeout_collect_interval (struct ev_loop *loop, NV interval)
1292
1293 unsigned int ev_backend (struct ev_loop *loop)
1294
1295 unsigned int ev_iteration (struct ev_loop *loop)
1296
1297 unsigned int ev_depth (struct ev_loop *loop)
1298
1299 void ev_loop (struct ev_loop *loop, int flags = 0)
1300
1301 void ev_unloop (struct ev_loop *loop, int how = 1)
1302
1303 void ev_feed_fd_event (struct ev_loop *loop, int fd, int revents = EV_NONE)
1304
1305 unsigned int ev_pending_count (struct ev_loop *loop)
1306
1307 void ev_invoke_pending (struct ev_loop *loop)
1308
1309 #if 0
1310
1311 void ev_feed_signal_event (struct ev_loop *loop, SV *signal)
1312 CODE:
1313 {
1314 Signal signum = s_signum (signal);
1315 CHECK_SIG (signal, signum);
1316
1317 ev_feed_signal_event (loop, signum);
1318 }
1319
1320 #endif
1321
1322 ev_io *io (struct ev_loop *loop, SV *fh, int events, SV *cb)
1323 ALIAS:
1324 io_ns = 1
1325 CODE:
1326 {
1327 int fd = s_fileno (fh, events & EV_WRITE);
1328 CHECK_FD (fh, fd);
1329
1330 RETVAL = e_new (sizeof (ev_io), cb, ST (0));
1331 RETVAL->fh = newSVsv (fh);
1332 ev_io_set (RETVAL, fd, events);
1333 if (!ix) START (io, RETVAL);
1334 }
1335 OUTPUT:
1336 RETVAL
1337
1338 ev_timer *timer (struct ev_loop *loop, NV after, NV repeat, SV *cb)
1339 ALIAS:
1340 timer_ns = 1
1341 INIT:
1342 CHECK_REPEAT (repeat);
1343 CODE:
1344 RETVAL = e_new (sizeof (ev_timer), cb, ST (0));
1345 ev_timer_set (RETVAL, after, repeat);
1346 if (!ix) START (timer, RETVAL);
1347 OUTPUT:
1348 RETVAL
1349
1350 SV *periodic (struct ev_loop *loop, NV at, NV interval, SV *reschedule_cb, SV *cb)
1351 ALIAS:
1352 periodic_ns = 1
1353 INIT:
1354 CHECK_REPEAT (interval);
1355 CODE:
1356 {
1357 ev_periodic *w;
1358 w = e_new (sizeof (ev_periodic), cb, ST (0));
1359 w->fh = SvTRUE (reschedule_cb) ? newSVsv (reschedule_cb) : 0;
1360 ev_periodic_set (w, at, interval, w->fh ? e_periodic_cb : 0);
1361 RETVAL = e_bless ((ev_watcher *)w, stash_periodic);
1362 if (!ix) START (periodic, w);
1363 }
1364 OUTPUT:
1365 RETVAL
1366
1367 ev_signal *signal (struct ev_loop *loop, SV *signal, SV *cb)
1368 ALIAS:
1369 signal_ns = 1
1370 CODE:
1371 {
1372 Signal signum = s_signum (signal);
1373 CHECK_SIG (signal, signum);
1374
1375 RETVAL = e_new (sizeof (ev_signal), cb, ST (0));
1376 ev_signal_set (RETVAL, signum);
1377 if (!ix) START_SIGNAL (RETVAL);
1378 }
1379 OUTPUT:
1380 RETVAL
1381
1382 ev_idle *idle (struct ev_loop *loop, SV *cb)
1383 ALIAS:
1384 idle_ns = 1
1385 CODE:
1386 RETVAL = e_new (sizeof (ev_idle), cb, ST (0));
1387 ev_idle_set (RETVAL);
1388 if (!ix) START (idle, RETVAL);
1389 OUTPUT:
1390 RETVAL
1391
1392 ev_prepare *prepare (struct ev_loop *loop, SV *cb)
1393 ALIAS:
1394 prepare_ns = 1
1395 CODE:
1396 RETVAL = e_new (sizeof (ev_prepare), cb, ST (0));
1397 ev_prepare_set (RETVAL);
1398 if (!ix) START (prepare, RETVAL);
1399 OUTPUT:
1400 RETVAL
1401
1402 ev_check *check (struct ev_loop *loop, SV *cb)
1403 ALIAS:
1404 check_ns = 1
1405 CODE:
1406 RETVAL = e_new (sizeof (ev_check), cb, ST (0));
1407 ev_check_set (RETVAL);
1408 if (!ix) START (check, RETVAL);
1409 OUTPUT:
1410 RETVAL
1411
1412 ev_fork *fork (struct ev_loop *loop, SV *cb)
1413 ALIAS:
1414 fork_ns = 1
1415 CODE:
1416 RETVAL = e_new (sizeof (ev_fork), cb, ST (0));
1417 ev_fork_set (RETVAL);
1418 if (!ix) START (fork, RETVAL);
1419 OUTPUT:
1420 RETVAL
1421
1422 ev_child *child (struct ev_loop *loop, int pid, int trace, SV *cb)
1423 ALIAS:
1424 child_ns = 1
1425 CODE:
1426 RETVAL = e_new (sizeof (ev_child), cb, ST (0));
1427 ev_child_set (RETVAL, pid, trace);
1428 if (!ix) START (child, RETVAL);
1429 OUTPUT:
1430 RETVAL
1431
1432 ev_stat *stat (struct ev_loop *loop, SV *path, NV interval, SV *cb)
1433 ALIAS:
1434 stat_ns = 1
1435 CODE:
1436 RETVAL = e_new (sizeof (ev_stat), cb, ST (0));
1437 RETVAL->fh = newSVsv (path);
1438 ev_stat_set (RETVAL, SvPVbyte_nolen (RETVAL->fh), interval);
1439 if (!ix) START (stat, RETVAL);
1440 OUTPUT:
1441 RETVAL
1442
1443 ev_embed *embed (struct ev_loop *loop, struct ev_loop *other, SV *cb = 0)
1444 ALIAS:
1445 embed_ns = 1
1446 CODE:
1447 {
1448 if (!(ev_backend (other) & ev_embeddable_backends ()))
1449 croak ("passed loop is not embeddable via EV::embed,");
1450
1451 RETVAL = e_new (sizeof (ev_embed), cb, ST (0));
1452 RETVAL->fh = newSVsv (ST (1));
1453 ev_embed_set (RETVAL, other);
1454 if (!ix) START (embed, RETVAL);
1455 }
1456 OUTPUT:
1457 RETVAL
1458
1459 ev_async *async (struct ev_loop *loop, SV *cb)
1460 ALIAS:
1461 async_ns = 1
1462 CODE:
1463 RETVAL = e_new (sizeof (ev_async), cb, ST (0));
1464 ev_async_set (RETVAL);
1465 if (!ix) START (async, RETVAL);
1466 OUTPUT:
1467 RETVAL
1468
1469 void once (struct ev_loop *loop, SV *fh, int events, SV *timeout, SV *cb)
1470 CODE:
1471 ev_once (
1472 loop,
1473 s_fileno (fh, events & EV_WRITE), events,
1474 SvOK (timeout) ? SvNV (timeout) : -1.,
1475 e_once_cb,
1476 newSVsv (cb)
1477 );
1478