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Comparing libev/ev++.h (file contents):
Revision 1.12 by root, Thu Nov 29 17:36:35 2007 UTC vs.
Revision 1.69 by root, Sat Jun 3 08:53:03 2023 UTC

1/*
2 * libev simple C++ wrapper classes
3 *
4 * Copyright (c) 2007,2008,2010,2018,2020 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26 * OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Alternatively, the contents of this file may be used under the terms of
29 * the GNU General Public License ("GPL") version 2 or any later version,
30 * in which case the provisions of the GPL are applicable instead of
31 * the above. If you wish to allow the use of your version of this file
32 * only under the terms of the GPL and not to allow others to use your
33 * version of this file under the BSD license, indicate your decision
34 * by deleting the provisions above and replace them with the notice
35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL.
38 */
39
1#ifndef EVPP_H__ 40#ifndef EVPP_H__
2#define EVPP_H__ 41#define EVPP_H__
3 42
43#ifdef EV_H
44# include EV_H
45#else
4#include "ev.h" 46# include "ev.h"
47#endif
48
49#ifndef EV_USE_STDEXCEPT
50# define EV_USE_STDEXCEPT 1
51#endif
52
53#if EV_USE_STDEXCEPT
54# include <stdexcept>
55#endif
5 56
6namespace ev { 57namespace ev {
7 58
8 template<class watcher> 59 typedef ev_tstamp tstamp;
9 class callback
10 {
11 struct klass; // it is vital that this is never defined
12
13 klass *o;
14 void (klass::*m)(watcher &, int);
15
16 public:
17 template<class O1, class O2>
18 explicit callback (O1 *object, void (O2::*method)(watcher &, int))
19 {
20 o = reinterpret_cast<klass *>(object);
21 m = reinterpret_cast<void (klass::*)(watcher &, int)>(method);
22 }
23
24 // this works because a standards-compliant C++ compiler
25 // basically can't help it: it doesn't have the knowledge
26 // required to miscompile (klass is not defined anywhere
27 // and nothing is known about the constructor arguments) :)
28 void call (watcher *w, int revents)
29 {
30 (o->*m) (*w, revents);
31 }
32 };
33 60
34 enum { 61 enum {
35 UNDEF = EV_UNDEF, 62 UNDEF = EV_UNDEF,
36 NONE = EV_NONE, 63 NONE = EV_NONE,
37 READ = EV_READ, 64 READ = EV_READ,
38 WRITE = EV_WRITE, 65 WRITE = EV_WRITE,
66#if EV_COMPAT3
39 TIMEOUT = EV_TIMEOUT, 67 TIMEOUT = EV_TIMEOUT,
68#endif
69 TIMER = EV_TIMER,
40 PERIODIC = EV_PERIODIC, 70 PERIODIC = EV_PERIODIC,
41 SIGNAL = EV_SIGNAL, 71 SIGNAL = EV_SIGNAL,
42 CHILD = EV_CHILD, 72 CHILD = EV_CHILD,
43 STAT = EV_STAT, 73 STAT = EV_STAT,
44 IDLE = EV_IDLE, 74 IDLE = EV_IDLE,
45 CHECK = EV_CHECK, 75 CHECK = EV_CHECK,
46 PREPARE = EV_PREPARE, 76 PREPARE = EV_PREPARE,
47 FORK = EV_FORK, 77 FORK = EV_FORK,
78 ASYNC = EV_ASYNC,
48 EMBED = EV_EMBED, 79 EMBED = EV_EMBED,
80# undef ERROR // some systems stupidly #define ERROR
49 ERROR = EV_ERROR, 81 ERROR = EV_ERROR
82 };
83
84 enum
85 {
86 AUTO = EVFLAG_AUTO,
87 NOENV = EVFLAG_NOENV,
88 FORKCHECK = EVFLAG_FORKCHECK,
89
90 SELECT = EVBACKEND_SELECT,
91 POLL = EVBACKEND_POLL,
92 EPOLL = EVBACKEND_EPOLL,
93 KQUEUE = EVBACKEND_KQUEUE,
94 DEVPOLL = EVBACKEND_DEVPOLL,
95 PORT = EVBACKEND_PORT
96 };
97
98 enum
99 {
100#if EV_COMPAT3
101 NONBLOCK = EVLOOP_NONBLOCK,
102 ONESHOT = EVLOOP_ONESHOT,
103#endif
104 NOWAIT = EVRUN_NOWAIT,
105 ONCE = EVRUN_ONCE
106 };
107
108 enum how_t
109 {
110 ONE = EVBREAK_ONE,
111 ALL = EVBREAK_ALL
112 };
113
114 struct bad_loop
115#if EV_USE_STDEXCEPT
116 : std::exception
117#endif
118 {
119#if EV_USE_STDEXCEPT
120 const char *what () const EV_NOEXCEPT
121 {
122 return "libev event loop cannot be initialized, bad value of LIBEV_FLAGS?";
123 }
124#endif
125 };
126
127#ifdef EV_AX
128# undef EV_AX
129#endif
130
131#ifdef EV_AX_
132# undef EV_AX_
133#endif
134
135#if EV_MULTIPLICITY
136# define EV_AX raw_loop
137# define EV_AX_ raw_loop,
138#else
139# define EV_AX
140# define EV_AX_
141#endif
142
143 struct loop_ref
144 {
145 loop_ref (EV_P) EV_NOEXCEPT
146#if EV_MULTIPLICITY
147 : EV_AX (EV_A)
148#endif
149 {
150 }
151
152 bool operator == (const loop_ref &other) const EV_NOEXCEPT
153 {
154#if EV_MULTIPLICITY
155 return EV_AX == other.EV_AX;
156#else
157 return true;
158#endif
159 }
160
161 bool operator != (const loop_ref &other) const EV_NOEXCEPT
162 {
163#if EV_MULTIPLICITY
164 return ! (*this == other);
165#else
166 return false;
167#endif
168 }
169
170#if EV_MULTIPLICITY
171 bool operator == (const EV_P) const EV_NOEXCEPT
172 {
173 return this->EV_AX == EV_A;
174 }
175
176 bool operator != (const EV_P) const EV_NOEXCEPT
177 {
178 return ! (*this == EV_A);
179 }
180
181 operator struct ev_loop * () const EV_NOEXCEPT
182 {
183 return EV_AX;
184 }
185
186 operator const struct ev_loop * () const EV_NOEXCEPT
187 {
188 return EV_AX;
189 }
190
191 bool is_default () const EV_NOEXCEPT
192 {
193 return EV_AX == ev_default_loop (0);
194 }
195#endif
196
197#if EV_COMPAT3
198 void loop (int flags = 0)
199 {
200 ev_run (EV_AX_ flags);
201 }
202
203 void unloop (how_t how = ONE) EV_NOEXCEPT
204 {
205 ev_break (EV_AX_ how);
206 }
207#endif
208
209 void run (int flags = 0)
210 {
211 ev_run (EV_AX_ flags);
212 }
213
214 void break_loop (how_t how = ONE) EV_NOEXCEPT
215 {
216 ev_break (EV_AX_ how);
217 }
218
219 void post_fork () EV_NOEXCEPT
220 {
221 ev_loop_fork (EV_AX);
222 }
223
224 unsigned int backend () const EV_NOEXCEPT
225 {
226 return ev_backend (EV_AX);
227 }
228
229 tstamp now () const EV_NOEXCEPT
230 {
231 return ev_now (EV_AX);
232 }
233
234 void ref () EV_NOEXCEPT
235 {
236 ev_ref (EV_AX);
237 }
238
239 void unref () EV_NOEXCEPT
240 {
241 ev_unref (EV_AX);
242 }
243
244#if EV_FEATURE_API
245 unsigned int iteration () const EV_NOEXCEPT
246 {
247 return ev_iteration (EV_AX);
248 }
249
250 unsigned int depth () const EV_NOEXCEPT
251 {
252 return ev_depth (EV_AX);
253 }
254
255 void set_io_collect_interval (tstamp interval) EV_NOEXCEPT
256 {
257 ev_set_io_collect_interval (EV_AX_ interval);
258 }
259
260 void set_timeout_collect_interval (tstamp interval) EV_NOEXCEPT
261 {
262 ev_set_timeout_collect_interval (EV_AX_ interval);
263 }
264#endif
265
266 // function callback
267 void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) EV_NOEXCEPT
268 {
269 ev_once (EV_AX_ fd, events, timeout, cb, arg);
270 }
271
272 // method callback
273 template<class K, void (K::*method)(int)>
274 void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
275 {
276 once (fd, events, timeout, method_thunk<K, method>, object);
277 }
278
279 // default method == operator ()
280 template<class K>
281 void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
282 {
283 once (fd, events, timeout, method_thunk<K, &K::operator ()>, object);
284 }
285
286 template<class K, void (K::*method)(int)>
287 static void method_thunk (int revents, void *arg)
288 {
289 (static_cast<K *>(arg)->*method)
290 (revents);
291 }
292
293 // no-argument method callback
294 template<class K, void (K::*method)()>
295 void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT
296 {
297 once (fd, events, timeout, method_noargs_thunk<K, method>, object);
298 }
299
300 template<class K, void (K::*method)()>
301 static void method_noargs_thunk (int revents, void *arg)
302 {
303 (static_cast<K *>(arg)->*method)
304 ();
305 }
306
307 // simpler function callback
308 template<void (*cb)(int)>
309 void once (int fd, int events, tstamp timeout) EV_NOEXCEPT
310 {
311 once (fd, events, timeout, simpler_func_thunk<cb>);
312 }
313
314 template<void (*cb)(int)>
315 static void simpler_func_thunk (int revents, void *arg)
316 {
317 (*cb)
318 (revents);
319 }
320
321 // simplest function callback
322 template<void (*cb)()>
323 void once (int fd, int events, tstamp timeout) EV_NOEXCEPT
324 {
325 once (fd, events, timeout, simplest_func_thunk<cb>);
326 }
327
328 template<void (*cb)()>
329 static void simplest_func_thunk (int revents, void *arg)
330 {
331 (*cb)
332 ();
333 }
334
335 void feed_fd_event (int fd, int revents) EV_NOEXCEPT
336 {
337 ev_feed_fd_event (EV_AX_ fd, revents);
338 }
339
340 void feed_signal_event (int signum) EV_NOEXCEPT
341 {
342 ev_feed_signal_event (EV_AX_ signum);
343 }
344
345#if EV_MULTIPLICITY
346 struct ev_loop* EV_AX;
347#endif
348
349 };
350
351#if EV_MULTIPLICITY
352 struct dynamic_loop : loop_ref
353 {
354
355 dynamic_loop (unsigned int flags = AUTO)
356 : loop_ref (ev_loop_new (flags))
357 {
358 if (!EV_AX)
359 throw bad_loop ();
360 }
361
362 ~dynamic_loop () EV_NOEXCEPT
363 {
364 ev_loop_destroy (EV_AX);
365 EV_AX = 0;
366 }
367
368 private:
369
370 dynamic_loop (const dynamic_loop &);
371
372 dynamic_loop & operator= (const dynamic_loop &);
373
374 };
375#endif
376
377 struct default_loop : loop_ref
378 {
379 default_loop (unsigned int flags = AUTO)
380#if EV_MULTIPLICITY
381 : loop_ref (ev_default_loop (flags))
382#endif
383 {
384 if (
385#if EV_MULTIPLICITY
386 !EV_AX
387#else
388 !ev_default_loop (flags)
389#endif
390 )
391 throw bad_loop ();
392 }
393
394 private:
395 default_loop (const default_loop &);
396 default_loop &operator = (const default_loop &);
397 };
398
399 inline loop_ref get_default_loop () EV_NOEXCEPT
400 {
401#if EV_MULTIPLICITY
402 return ev_default_loop (0);
403#else
404 return loop_ref ();
405#endif
50 }; 406 }
51 407
52 typedef ev_tstamp tstamp; 408#undef EV_AX
409#undef EV_AX_
53 410
411#undef EV_PX
412#undef EV_PX_
413#if EV_MULTIPLICITY
414# define EV_PX loop_ref EV_A
415# define EV_PX_ loop_ref EV_A_
416#else
417# define EV_PX
418# define EV_PX_
419#endif
420
421 template<class ev_watcher, class watcher>
422 struct base : ev_watcher
423 {
424 // scoped pause/unpause of a watcher
425 struct freeze_guard
426 {
427 watcher &w;
428 bool active;
429
430 freeze_guard (watcher *self) EV_NOEXCEPT
431 : w (*self), active (w.is_active ())
432 {
433 if (active) w.stop ();
434 }
435
436 ~freeze_guard ()
437 {
438 if (active) w.start ();
439 }
440 };
441
442 #if EV_MULTIPLICITY
443 EV_PX;
444
445 // loop set
446 void set (EV_P) EV_NOEXCEPT
447 {
448 this->EV_A = EV_A;
449 }
450 #endif
451
452 base (EV_PX) EV_NOEXCEPT
453 #if EV_MULTIPLICITY
454 : EV_A (EV_A)
455 #endif
456 {
457 ev_init (this, 0);
458 }
459
460 void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) EV_NOEXCEPT
461 {
462 this->data = (void *)data;
463 ev_set_cb (static_cast<ev_watcher *>(this), cb);
464 }
465
466 // function callback
467 template<void (*function)(watcher &w, int)>
468 void set (void *data = 0) EV_NOEXCEPT
469 {
470 set_ (data, function_thunk<function>);
471 }
472
473 template<void (*function)(watcher &w, int)>
474 static void function_thunk (EV_P_ ev_watcher *w, int revents)
475 {
476 function
477 (*static_cast<watcher *>(w), revents);
478 }
479
480 // method callback
481 template<class K, void (K::*method)(watcher &w, int)>
482 void set (K *object) EV_NOEXCEPT
483 {
484 set_ (object, method_thunk<K, method>);
485 }
486
487 // default method == operator ()
488 template<class K>
489 void set (K *object) EV_NOEXCEPT
490 {
491 set_ (object, method_thunk<K, &K::operator ()>);
492 }
493
494 template<class K, void (K::*method)(watcher &w, int)>
495 static void method_thunk (EV_P_ ev_watcher *w, int revents)
496 {
497 (static_cast<K *>(w->data)->*method)
498 (*static_cast<watcher *>(w), revents);
499 }
500
501 // no-argument callback
502 template<class K, void (K::*method)()>
503 void set (K *object) EV_NOEXCEPT
504 {
505 set_ (object, method_noargs_thunk<K, method>);
506 }
507
508 template<class K, void (K::*method)()>
509 static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
510 {
511 (static_cast<K *>(w->data)->*method)
512 ();
513 }
514
515 void operator ()(int events = EV_UNDEF)
516 {
517 return
518 ev_cb (static_cast<ev_watcher *>(this))
519 (static_cast<ev_watcher *>(this), events);
520 }
521
522 bool is_active () const EV_NOEXCEPT
523 {
524 return ev_is_active (static_cast<const ev_watcher *>(this));
525 }
526
527 bool is_pending () const EV_NOEXCEPT
528 {
529 return ev_is_pending (static_cast<const ev_watcher *>(this));
530 }
531
532 void feed_event (int revents) EV_NOEXCEPT
533 {
534 ev_feed_event (EV_A_ static_cast<ev_watcher *>(this), revents);
535 }
536 };
537
54 inline ev_tstamp now (EV_P) 538 inline tstamp now (EV_P) EV_NOEXCEPT
55 { 539 {
56 return ev_now (EV_A); 540 return ev_now (EV_A);
57 } 541 }
58 542
543 inline void delay (tstamp interval) EV_NOEXCEPT
544 {
545 ev_sleep (interval);
546 }
547
548 inline int version_major () EV_NOEXCEPT
549 {
550 return ev_version_major ();
551 }
552
553 inline int version_minor () EV_NOEXCEPT
554 {
555 return ev_version_minor ();
556 }
557
558 inline unsigned int supported_backends () EV_NOEXCEPT
559 {
560 return ev_supported_backends ();
561 }
562
563 inline unsigned int recommended_backends () EV_NOEXCEPT
564 {
565 return ev_recommended_backends ();
566 }
567
568 inline unsigned int embeddable_backends () EV_NOEXCEPT
569 {
570 return ev_embeddable_backends ();
571 }
572
573 inline void set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
574 {
575 ev_set_allocator (cb);
576 }
577
578 inline void set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
579 {
580 ev_set_syserr_cb (cb);
581 }
582
59 #if EV_MULTIPLICITY 583 #if EV_MULTIPLICITY
60 584 #define EV_CONSTRUCT(cppstem,cstem) \
61 #define EV_CONSTRUCT(cppstem) \ 585 (EV_PX = get_default_loop ()) EV_NOEXCEPT \
62 EV_P; \ 586 : base<ev_ ## cstem, cppstem> (EV_A) \
63 \
64 void set (EV_P) \
65 { \ 587 { \
66 this->EV_A = EV_A; \ 588 }
67 } \
68 \
69 template<class O1, class O2> \
70 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int), EV_P = ev_default_loop (0)) \
71 : callback<cppstem> (object, method), EV_A (EV_A)
72
73 #else 589 #else
74 590 #define EV_CONSTRUCT(cppstem,cstem) \
75 #define EV_CONSTRUCT(cppstem) \ 591 () EV_NOEXCEPT \
76 template<class O1, class O2> \ 592 { \
77 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int)) \ 593 }
78 : callback<cppstem> (object, method)
79
80 #endif 594 #endif
81 595
82 /* using a template here would require quite a bit more lines, 596 /* using a template here would require quite a few more lines,
83 * so a macro solution was chosen */ 597 * so a macro solution was chosen */
84 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 598 #define EV_BEGIN_WATCHER(cppstem,cstem) \
85 \ 599 \
86 struct cppstem : ev_ ## cstem, callback<cppstem> \ 600 struct cppstem : base<ev_ ## cstem, cppstem> \
87 { \ 601 { \
88 EV_CONSTRUCT (cppstem) \
89 { \
90 ev_init (static_cast<ev_ ## cstem *>(this), thunk); \
91 } \
92 \
93 bool is_active () const \
94 { \
95 return ev_is_active (static_cast<const ev_ ## cstem *>(this)); \
96 } \
97 \
98 bool is_pending () const \
99 { \
100 return ev_is_pending (static_cast<const ev_ ## cstem *>(this)); \
101 } \
102 \
103 void start () \ 602 void start () EV_NOEXCEPT \
104 { \ 603 { \
105 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 604 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
106 } \ 605 } \
107 \ 606 \
108 void stop () \ 607 void stop () EV_NOEXCEPT \
109 { \ 608 { \
110 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 609 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
111 } \ 610 } \
112 \ 611 \
113 void operator ()(int events = EV_UNDEF) \ 612 cppstem EV_CONSTRUCT(cppstem,cstem) \
114 { \
115 return call (this, events); \
116 } \
117 \ 613 \
118 ~cppstem () \ 614 ~cppstem () EV_NOEXCEPT \
119 { \ 615 { \
120 stop (); \ 616 stop (); \
121 } \ 617 } \
122 \ 618 \
619 using base<ev_ ## cstem, cppstem>::set; \
620 \
123 private: \ 621 private: \
124 \ 622 \
125 cppstem (const cppstem &o) \ 623 cppstem (const cppstem &o); \
126 : callback<cppstem> (this, (void (cppstem::*)(cppstem &, int))0) \
127 { /* disabled */ } \
128 \ 624 \
129 void operator =(const cppstem &o) { /* disabled */ } \ 625 cppstem &operator =(const cppstem &o); \
130 \
131 static void thunk (EV_P_ struct ev_ ## cstem *w, int revents) \
132 { \
133 (*static_cast<cppstem *>(w))(revents); \
134 } \
135 \ 626 \
136 public: 627 public:
137 628
138 #define EV_END_WATCHER(cppstem,cstem) \ 629 #define EV_END_WATCHER(cppstem,cstem) \
139 }; 630 };
631 //TODO: https://paste.debian.net/1268417/
140 632
141 EV_BEGIN_WATCHER (io, io) 633 EV_BEGIN_WATCHER (io, io)
142 void set (int fd, int events) 634 void set (int fd, int events) EV_NOEXCEPT
143 { 635 {
144 int active = is_active (); 636 freeze_guard freeze (this);
145 if (active) stop ();
146 ev_io_set (static_cast<ev_io *>(this), fd, events); 637 ev_io_set (static_cast<ev_io *>(this), fd, events);
147 if (active) start ();
148 } 638 }
149 639
150 void set (int events) 640 void set (int events) EV_NOEXCEPT
151 { 641 {
152 int active = is_active (); 642 freeze_guard freeze (this);
153 if (active) stop ();
154 ev_io_set (static_cast<ev_io *>(this), fd, events); 643 ev_io_modify (static_cast<ev_io *>(this), events);
155 if (active) start ();
156 } 644 }
157 645
158 void start (int fd, int events) 646 void start (int fd, int events) EV_NOEXCEPT
159 { 647 {
160 set (fd, events); 648 set (fd, events);
161 start (); 649 start ();
162 } 650 }
163 EV_END_WATCHER (io, io) 651 EV_END_WATCHER (io, io)
164 652
165 EV_BEGIN_WATCHER (timer, timer) 653 EV_BEGIN_WATCHER (timer, timer)
166 void set (ev_tstamp after, ev_tstamp repeat = 0.) 654 void set (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT
167 { 655 {
168 int active = is_active (); 656 freeze_guard freeze (this);
169 if (active) stop ();
170 ev_timer_set (static_cast<ev_timer *>(this), after, repeat); 657 ev_timer_set (static_cast<ev_timer *>(this), after, repeat);
171 if (active) start ();
172 } 658 }
173 659
174 void start (ev_tstamp after, ev_tstamp repeat = 0.) 660 void start (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT
175 { 661 {
176 set (after, repeat); 662 set (after, repeat);
177 start (); 663 start ();
178 } 664 }
179 665
180 void again () 666 void again () EV_NOEXCEPT
181 { 667 {
182 ev_timer_again (EV_A_ static_cast<ev_timer *>(this)); 668 ev_timer_again (EV_A_ static_cast<ev_timer *>(this));
669 }
670
671 ev_tstamp remaining ()
672 {
673 return ev_timer_remaining (EV_A_ static_cast<ev_timer *>(this));
183 } 674 }
184 EV_END_WATCHER (timer, timer) 675 EV_END_WATCHER (timer, timer)
185 676
186 #if EV_PERIODIC_ENABLE 677 #if EV_PERIODIC_ENABLE
187 EV_BEGIN_WATCHER (periodic, periodic) 678 EV_BEGIN_WATCHER (periodic, periodic)
188 void set (ev_tstamp at, ev_tstamp interval = 0.) 679 void set (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT
189 { 680 {
190 int active = is_active (); 681 freeze_guard freeze (this);
191 if (active) stop ();
192 ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0); 682 ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0);
193 if (active) start ();
194 } 683 }
195 684
196 void start (ev_tstamp at, ev_tstamp interval = 0.) 685 void start (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT
197 { 686 {
198 set (at, interval); 687 set (at, interval);
199 start (); 688 start ();
200 } 689 }
201 690
202 void again () 691 void again () EV_NOEXCEPT
203 { 692 {
204 ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); 693 ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this));
205 } 694 }
206 EV_END_WATCHER (periodic, periodic) 695 EV_END_WATCHER (periodic, periodic)
207 #endif 696 #endif
208 697
698 #if EV_SIGNAL_ENABLE
209 EV_BEGIN_WATCHER (sig, signal) 699 EV_BEGIN_WATCHER (sig, signal)
210 void set (int signum) 700 void set (int signum) EV_NOEXCEPT
211 { 701 {
212 int active = is_active (); 702 freeze_guard freeze (this);
213 if (active) stop ();
214 ev_signal_set (static_cast<ev_signal *>(this), signum); 703 ev_signal_set (static_cast<ev_signal *>(this), signum);
215 if (active) start ();
216 } 704 }
217 705
218 void start (int signum) 706 void start (int signum) EV_NOEXCEPT
219 { 707 {
220 set (signum); 708 set (signum);
221 start (); 709 start ();
222 } 710 }
223 EV_END_WATCHER (sig, signal) 711 EV_END_WATCHER (sig, signal)
712 #endif
224 713
714 #if EV_CHILD_ENABLE
225 EV_BEGIN_WATCHER (child, child) 715 EV_BEGIN_WATCHER (child, child)
226 void set (int pid) 716 void set (int pid, int trace = 0) EV_NOEXCEPT
227 { 717 {
228 int active = is_active (); 718 freeze_guard freeze (this);
229 if (active) stop ();
230 ev_child_set (static_cast<ev_child *>(this), pid); 719 ev_child_set (static_cast<ev_child *>(this), pid, trace);
231 if (active) start ();
232 }
233
234 void start (int pid)
235 { 720 }
721
722 void start (int pid, int trace = 0) EV_NOEXCEPT
723 {
236 set (pid); 724 set (pid, trace);
237 start (); 725 start ();
238 } 726 }
239 EV_END_WATCHER (child, child) 727 EV_END_WATCHER (child, child)
728 #endif
240 729
241 #if EV_STAT_ENABLE 730 #if EV_STAT_ENABLE
242 EV_BEGIN_WATCHER (stat, stat) 731 EV_BEGIN_WATCHER (stat, stat)
243 void set (const char *path, ev_tstamp interval = 0.) 732 void set (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT
244 { 733 {
245 int active = is_active (); 734 freeze_guard freeze (this);
246 if (active) stop ();
247 ev_stat_set (static_cast<ev_stat *>(this), path, interval); 735 ev_stat_set (static_cast<ev_stat *>(this), path, interval);
248 if (active) start ();
249 } 736 }
250 737
251 void start (const char *path, ev_tstamp interval = 0.) 738 void start (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT
252 { 739 {
253 stop (); 740 stop ();
254 set (path, interval); 741 set (path, interval);
255 start (); 742 start ();
256 } 743 }
257 744
258 void update () 745 void update () EV_NOEXCEPT
259 { 746 {
260 ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); 747 ev_stat_stat (EV_A_ static_cast<ev_stat *>(this));
261 } 748 }
262 EV_END_WATCHER (stat, stat) 749 EV_END_WATCHER (stat, stat)
263 #endif 750 #endif
264 751
752 #if EV_IDLE_ENABLE
265 EV_BEGIN_WATCHER (idle, idle) 753 EV_BEGIN_WATCHER (idle, idle)
266 void set () { } 754 void set () EV_NOEXCEPT { }
267 EV_END_WATCHER (idle, idle) 755 EV_END_WATCHER (idle, idle)
756 #endif
268 757
758 #if EV_PREPARE_ENABLE
269 EV_BEGIN_WATCHER (prepare, prepare) 759 EV_BEGIN_WATCHER (prepare, prepare)
270 void set () { } 760 void set () EV_NOEXCEPT { }
271 EV_END_WATCHER (prepare, prepare) 761 EV_END_WATCHER (prepare, prepare)
762 #endif
272 763
764 #if EV_CHECK_ENABLE
273 EV_BEGIN_WATCHER (check, check) 765 EV_BEGIN_WATCHER (check, check)
274 void set () { } 766 void set () EV_NOEXCEPT { }
275 EV_END_WATCHER (check, check) 767 EV_END_WATCHER (check, check)
768 #endif
276 769
277 #if EV_EMBED_ENABLE 770 #if EV_EMBED_ENABLE
278 EV_BEGIN_WATCHER (embed, embed) 771 EV_BEGIN_WATCHER (embed, embed)
279 void start (struct ev_loop *embedded_loop) 772 void set_embed (struct ev_loop *embedded_loop) EV_NOEXCEPT
280 { 773 {
281 stop (); 774 freeze_guard freeze (this);
282 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop); 775 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
776 }
777
778 void start (struct ev_loop *embedded_loop) EV_NOEXCEPT
779 {
780 set (embedded_loop);
283 start (); 781 start ();
284 } 782 }
285 783
286 void sweep () 784 void sweep ()
287 { 785 {
… …
290 EV_END_WATCHER (embed, embed) 788 EV_END_WATCHER (embed, embed)
291 #endif 789 #endif
292 790
293 #if EV_FORK_ENABLE 791 #if EV_FORK_ENABLE
294 EV_BEGIN_WATCHER (fork, fork) 792 EV_BEGIN_WATCHER (fork, fork)
295 void set () { } 793 void set () EV_NOEXCEPT { }
296 EV_END_WATCHER (fork, fork) 794 EV_END_WATCHER (fork, fork)
297 #endif 795 #endif
298 796
797 #if EV_ASYNC_ENABLE
798 EV_BEGIN_WATCHER (async, async)
799 void send () EV_NOEXCEPT
800 {
801 ev_async_send (EV_A_ static_cast<ev_async *>(this));
802 }
803
804 bool async_pending () EV_NOEXCEPT
805 {
806 return ev_async_pending (static_cast<ev_async *>(this));
807 }
808 EV_END_WATCHER (async, async)
809 #endif
810
811 #undef EV_PX
812 #undef EV_PX_
299 #undef EV_CONSTRUCT 813 #undef EV_CONSTRUCT
300 #undef EV_BEGIN_WATCHER 814 #undef EV_BEGIN_WATCHER
301 #undef EV_END_WATCHER 815 #undef EV_END_WATCHER
302} 816}
303 817

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