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Comparing libev/ev++.h (file contents):
Revision 1.11 by root, Tue Nov 27 22:31:52 2007 UTC vs.
Revision 1.42 by root, Mon Nov 3 14:27:06 2008 UTC

1/*
2 * libev simple C++ wrapper classes
3 *
4 * Copyright (c) 2007,2008 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,
… …
43 STAT = EV_STAT, 70 STAT = EV_STAT,
44 IDLE = EV_IDLE, 71 IDLE = EV_IDLE,
45 CHECK = EV_CHECK, 72 CHECK = EV_CHECK,
46 PREPARE = EV_PREPARE, 73 PREPARE = EV_PREPARE,
47 FORK = EV_FORK, 74 FORK = EV_FORK,
75 ASYNC = EV_ASYNC,
48 EMBED = EV_EMBED, 76 EMBED = EV_EMBED,
77# undef ERROR // some systems stupidly #define ERROR
49 ERROR = EV_ERROR, 78 ERROR = EV_ERROR,
50 }; 79 };
51 80
52 typedef ev_tstamp tstamp; 81 enum
82 {
83 AUTO = EVFLAG_AUTO,
84 NOENV = EVFLAG_NOENV,
85 FORKCHECK = EVFLAG_FORKCHECK,
53 86
54 inline ev_tstamp now (EV_P) 87 SELECT = EVBACKEND_SELECT,
88 POLL = EVBACKEND_POLL,
89 EPOLL = EVBACKEND_EPOLL,
90 KQUEUE = EVBACKEND_KQUEUE,
91 DEVPOLL = EVBACKEND_DEVPOLL,
92 PORT = EVBACKEND_PORT
93 };
94
95 enum
96 {
97 NONBLOCK = EVLOOP_NONBLOCK,
98 ONESHOT = EVLOOP_ONESHOT
99 };
100
101 enum how_t
102 {
103 ONE = EVUNLOOP_ONE,
104 ALL = EVUNLOOP_ALL
105 };
106
107 struct bad_loop
108#if EV_USE_STDEXCEPT
109 : std::runtime_error
110#endif
111 {
112#if EV_USE_STDEXCEPT
113 bad_loop ()
114 : std::runtime_error ("libev event loop cannot be initialized, bad value of LIBEV_FLAGS?")
55 { 115 {
116 }
117#endif
118 };
119
120#ifdef EV_AX
121# undef EV_AX
122#endif
123
124#ifdef EV_AX_
125# undef EV_AX_
126#endif
127
128#if EV_MULTIPLICITY
129# define EV_AX raw_loop
130# define EV_AX_ raw_loop,
131#else
132# define EV_AX
133# define EV_AX_
134#endif
135
136 struct loop_ref
137 {
138 loop_ref (EV_P) throw ()
139#if EV_MULTIPLICITY
140 : EV_AX (EV_A)
141#endif
142 {
143 }
144
145 bool operator == (const loop_ref &other) const throw ()
146 {
147#if EV_MULTIPLICITY
148 return EV_AX == other.EV_AX;
149#else
150 return true;
151#endif
152 }
153
154 bool operator != (const loop_ref &other) const throw ()
155 {
156#if EV_MULTIPLICITY
157 return ! (*this == other);
158#else
159 return false;
160#endif
161 }
162
163#if EV_MULTIPLICITY
164 bool operator == (struct ev_loop *other) const throw ()
165 {
166 return this->EV_AX == other;
167 }
168
169 bool operator != (struct ev_loop *other) const throw ()
170 {
171 return ! (*this == other);
172 }
173
174 bool operator == (const struct ev_loop *other) const throw ()
175 {
176 return this->EV_AX == other;
177 }
178
179 bool operator != (const struct ev_loop *other) const throw ()
180 {
181 return (*this == other);
182 }
183
184 operator struct ev_loop * () const throw ()
185 {
186 return EV_AX;
187 }
188
189 operator const struct ev_loop * () const throw ()
190 {
191 return EV_AX;
192 }
193
194 bool is_default () const throw ()
195 {
196 return EV_AX == ev_default_loop (0);
197 }
198#endif
199
200 void loop (int flags = 0)
201 {
202 ev_loop (EV_AX_ flags);
203 }
204
205 void unloop (how_t how = ONE) throw ()
206 {
207 ev_unloop (EV_AX_ how);
208 }
209
210 void post_fork () throw ()
211 {
212#if EV_MULTIPLICITY
213 ev_loop_fork (EV_AX);
214#else
215 ev_default_fork ();
216#endif
217 }
218
219 unsigned int count () const throw ()
220 {
221 return ev_loop_count (EV_AX);
222 }
223
224 unsigned int backend () const throw ()
225 {
226 return ev_backend (EV_AX);
227 }
228
229 tstamp now () const throw ()
230 {
56 return ev_now (EV_A); 231 return ev_now (EV_AX);
232 }
233
234 void ref () throw ()
235 {
236 ev_ref (EV_AX);
237 }
238
239 void unref () throw ()
240 {
241 ev_unref (EV_AX);
242 }
243
244 void set_io_collect_interval (tstamp interval) throw ()
245 {
246 ev_set_io_collect_interval (EV_AX_ interval);
247 }
248
249 void set_timeout_collect_interval (tstamp interval) throw ()
250 {
251 ev_set_timeout_collect_interval (EV_AX_ interval);
252 }
253
254 // function callback
255 void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void* arg = 0) throw ()
256 {
257 ev_once (EV_AX_ fd, events, timeout, cb, arg);
258 }
259
260 // method callback
261 template<class K, void (K::*method)(int)>
262 void once (int fd, int events, tstamp timeout, K *object) throw ()
263 {
264 once (fd, events, timeout, method_thunk<K, method>, object);
265 }
266
267 template<class K, void (K::*method)(int)>
268 static void method_thunk (int revents, void* arg)
269 {
270 K *obj = static_cast<K *>(arg);
271 (obj->*method) (revents);
272 }
273
274 // const method callback
275 template<class K, void (K::*method)(int) const>
276 void once (int fd, int events, tstamp timeout, const K *object) throw ()
277 {
278 once (fd, events, timeout, const_method_thunk<K, method>, object);
279 }
280
281 template<class K, void (K::*method)(int) const>
282 static void const_method_thunk (int revents, void* arg)
283 {
284 K *obj = static_cast<K *>(arg);
285 (obj->*method) (revents);
286 }
287
288 // simple method callback
289 template<class K, void (K::*method)()>
290 void once (int fd, int events, tstamp timeout, K *object) throw ()
291 {
292 once (fd, events, timeout, method_noargs_thunk<K, method>, object);
293 }
294
295 template<class K, void (K::*method)()>
296 static void method_noargs_thunk (int revents, void* arg)
297 {
298 K *obj = static_cast<K *>(arg);
299 (obj->*method) ();
300 }
301
302 // simpler function callback
303 template<void (*cb)(int)>
304 void once (int fd, int events, tstamp timeout) throw ()
305 {
306 once (fd, events, timeout, simpler_func_thunk<cb>);
307 }
308
309 template<void (*cb)(int)>
310 static void simpler_func_thunk (int revents, void* arg)
311 {
312 (*cb) (revents);
313 }
314
315 // simplest function callback
316 template<void (*cb)()>
317 void once (int fd, int events, tstamp timeout) throw ()
318 {
319 once (fd, events, timeout, simplest_func_thunk<cb>);
320 }
321
322 template<void (*cb)()>
323 static void simplest_func_thunk (int revents, void* arg)
324 {
325 (*cb) ();
326 }
327
328 void feed_fd_event (int fd, int revents) throw ()
329 {
330 ev_feed_fd_event (EV_AX_ fd, revents);
331 }
332
333 void feed_signal_event (int signum) throw ()
334 {
335 ev_feed_signal_event (EV_AX_ signum);
336 }
337
338#if EV_MULTIPLICITY
339 struct ev_loop* EV_AX;
340#endif
341
342 };
343
344#if EV_MULTIPLICITY
345 struct dynamic_loop : loop_ref
346 {
347
348 dynamic_loop (unsigned int flags = AUTO) throw (bad_loop)
349 : loop_ref (ev_loop_new (flags))
350 {
351 if (!EV_AX)
352 throw bad_loop ();
353 }
354
355 ~dynamic_loop () throw ()
356 {
357 ev_loop_destroy (EV_AX);
358 EV_AX = 0;
359 }
360
361 private:
362
363 dynamic_loop (const dynamic_loop &);
364
365 dynamic_loop & operator= (const dynamic_loop &);
366
367 };
368#endif
369
370 struct default_loop : loop_ref
371 {
372 default_loop (unsigned int flags = AUTO) throw (bad_loop)
373#if EV_MULTIPLICITY
374 : loop_ref (ev_default_loop (flags))
375#endif
376 {
377 if (
378#if EV_MULTIPLICITY
379 !EV_AX
380#else
381 !ev_default_loop (flags)
382#endif
383 )
384 throw bad_loop ();
385 }
386
387 ~default_loop () throw ()
388 {
389 ev_default_destroy ();
390 }
391
392 private:
393 default_loop (const default_loop &);
394 default_loop &operator = (const default_loop &);
395 };
396
397 inline loop_ref get_default_loop () throw ()
398 {
399#if EV_MULTIPLICITY
400 return ev_default_loop (0);
401#else
402 return loop_ref ();
403#endif
404 }
405
406#undef EV_AX
407#undef EV_AX_
408
409#undef EV_PX
410#undef EV_PX_
411#if EV_MULTIPLICITY
412# define EV_PX loop_ref EV_A
413# define EV_PX_ loop_ref EV_A_
414#else
415# define EV_PX
416# define EV_PX_
417#endif
418
419 template<class ev_watcher, class watcher>
420 struct base : ev_watcher
421 {
422 #if EV_MULTIPLICITY
423 EV_PX;
424
425 void set (EV_PX) throw ()
426 {
427 this->EV_A = EV_A;
428 }
429 #endif
430
431 base (EV_PX) throw ()
432 #if EV_MULTIPLICITY
433 : EV_A (EV_A)
434 #endif
435 {
436 ev_init (this, 0);
437 }
438
439 void set_ (void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) throw ()
440 {
441 this->data = data;
442 ev_set_cb (static_cast<ev_watcher *>(this), cb);
443 }
444
445 // method callback
446 template<class K, void (K::*method)(watcher &w, int)>
447 void set (K *object) throw ()
448 {
449 set_ (object, method_thunk<K, method>);
450 }
451
452 template<class K, void (K::*method)(watcher &w, int)>
453 static void method_thunk (EV_P_ ev_watcher *w, int revents)
454 {
455 K *obj = static_cast<K *>(w->data);
456 (obj->*method) (*static_cast<watcher *>(w), revents);
457 }
458
459 // const method callback
460 template<class K, void (K::*method)(watcher &w, int) const>
461 void set (const K *object) throw ()
462 {
463 set_ (object, const_method_thunk<K, method>);
464 }
465
466 template<class K, void (K::*method)(watcher &w, int) const>
467 static void const_method_thunk (EV_P_ ev_watcher *w, int revents)
468 {
469 K *obj = static_cast<K *>(w->data);
470 (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents);
471 }
472
473 // function callback
474 template<void (*function)(watcher &w, int)>
475 void set (void *data = 0) throw ()
476 {
477 set_ (data, function_thunk<function>);
478 }
479
480 template<void (*function)(watcher &w, int)>
481 static void function_thunk (EV_P_ ev_watcher *w, int revents)
482 {
483 function (*static_cast<watcher *>(w), revents);
484 }
485
486 // simple callback
487 template<class K, void (K::*method)()>
488 void set (K *object) throw ()
489 {
490 set_ (object, method_noargs_thunk<K, method>);
491 }
492
493 template<class K, void (K::*method)()>
494 static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
495 {
496 K *obj = static_cast<K *>(w->data);
497 (obj->*method) ();
498 }
499
500 void operator ()(int events = EV_UNDEF)
501 {
502 return ev_cb (static_cast<ev_watcher *>(this))
503 (static_cast<ev_watcher *>(this), events);
504 }
505
506 bool is_active () const throw ()
507 {
508 return ev_is_active (static_cast<const ev_watcher *>(this));
509 }
510
511 bool is_pending () const throw ()
512 {
513 return ev_is_pending (static_cast<const ev_watcher *>(this));
514 }
515
516 void feed_event (int revents) throw ()
517 {
518 ev_feed_event (EV_A_ static_cast<const ev_watcher *>(this), revents);
519 }
520 };
521
522 inline tstamp now () throw ()
523 {
524 return ev_time ();
525 }
526
527 inline void delay (tstamp interval) throw ()
528 {
529 ev_sleep (interval);
530 }
531
532 inline int version_major () throw ()
533 {
534 return ev_version_major ();
535 }
536
537 inline int version_minor () throw ()
538 {
539 return ev_version_minor ();
540 }
541
542 inline unsigned int supported_backends () throw ()
543 {
544 return ev_supported_backends ();
545 }
546
547 inline unsigned int recommended_backends () throw ()
548 {
549 return ev_recommended_backends ();
550 }
551
552 inline unsigned int embeddable_backends () throw ()
553 {
554 return ev_embeddable_backends ();
555 }
556
557 inline void set_allocator (void *(*cb)(void *ptr, long size)) throw ()
558 {
559 ev_set_allocator (cb);
560 }
561
562 inline void set_syserr_cb (void (*cb)(const char *msg)) throw ()
563 {
564 ev_set_syserr_cb (cb);
57 } 565 }
58 566
59 #if EV_MULTIPLICITY 567 #if EV_MULTIPLICITY
60 568 #define EV_CONSTRUCT(cppstem,cstem) \
61 #define EV_CONSTRUCT(cppstem) \ 569 (EV_PX = get_default_loop ()) throw () \
62 EV_P; \ 570 : base<ev_ ## cstem, cppstem> (EV_A) \
63 \
64 void set (EV_P) \
65 { \ 571 { \
66 this->EV_A = EV_A; \ 572 }
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 573 #else
74 574 #define EV_CONSTRUCT(cppstem,cstem) \
75 #define EV_CONSTRUCT(cppstem) \ 575 () throw () \
76 template<class O1, class O2> \ 576 { \
77 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int)) \ 577 }
78 : callback<cppstem> (object, method)
79
80 #endif 578 #endif
81 579
82 /* using a template here would require quite a bit more lines, 580 /* using a template here would require quite a bit more lines,
83 * so a macro solution was chosen */ 581 * so a macro solution was chosen */
84 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 582 #define EV_BEGIN_WATCHER(cppstem,cstem) \
85 \ 583 \
86 struct cppstem : ev_ ## cstem, callback<cppstem> \ 584 struct cppstem : base<ev_ ## cstem, cppstem> \
87 { \ 585 { \
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 () \ 586 void start () throw () \
104 { \ 587 { \
105 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 588 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
106 } \ 589 } \
107 \ 590 \
108 void stop () \ 591 void stop () throw () \
109 { \ 592 { \
110 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 593 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
111 } \ 594 } \
112 \ 595 \
113 void operator ()(int events = EV_UNDEF) \ 596 cppstem EV_CONSTRUCT(cppstem,cstem) \
114 { \
115 return call (this, events); \
116 } \
117 \ 597 \
118 ~cppstem () \ 598 ~cppstem () throw () \
119 { \ 599 { \
120 stop (); \ 600 stop (); \
121 } \ 601 } \
122 \ 602 \
603 using base<ev_ ## cstem, cppstem>::set; \
604 \
123 private: \ 605 private: \
124 \ 606 \
125 cppstem (const cppstem &o) \ 607 cppstem (const cppstem &o); \
126 : callback<cppstem> (this, (void (cppstem::*)(cppstem &, int))0) \
127 { /* disabled */ } \
128 \ 608 \
129 void operator =(const cppstem &o) { /* disabled */ } \ 609 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 \ 610 \
136 public: 611 public:
137 612
138 #define EV_END_WATCHER(cppstem,cstem) \ 613 #define EV_END_WATCHER(cppstem,cstem) \
139 }; 614 };
140 615
141 EV_BEGIN_WATCHER (io, io) 616 EV_BEGIN_WATCHER (io, io)
142 void set (int fd, int events) 617 void set (int fd, int events) throw ()
143 { 618 {
144 int active = is_active (); 619 int active = is_active ();
145 if (active) stop (); 620 if (active) stop ();
146 ev_io_set (static_cast<ev_io *>(this), fd, events); 621 ev_io_set (static_cast<ev_io *>(this), fd, events);
147 if (active) start (); 622 if (active) start ();
148 } 623 }
149 624
150 void set (int events) 625 void set (int events) throw ()
151 { 626 {
152 int active = is_active (); 627 int active = is_active ();
153 if (active) stop (); 628 if (active) stop ();
154 ev_io_set (static_cast<ev_io *>(this), fd, events); 629 ev_io_set (static_cast<ev_io *>(this), fd, events);
155 if (active) start (); 630 if (active) start ();
156 } 631 }
157 632
158 void start (int fd, int events) 633 void start (int fd, int events) throw ()
159 { 634 {
160 set (fd, events); 635 set (fd, events);
161 start (); 636 start ();
162 } 637 }
163 EV_END_WATCHER (io, io) 638 EV_END_WATCHER (io, io)
164 639
165 EV_BEGIN_WATCHER (timer, timer) 640 EV_BEGIN_WATCHER (timer, timer)
166 void set (ev_tstamp after, ev_tstamp repeat = 0.) 641 void set (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
167 { 642 {
168 int active = is_active (); 643 int active = is_active ();
169 if (active) stop (); 644 if (active) stop ();
170 ev_timer_set (static_cast<ev_timer *>(this), after, repeat); 645 ev_timer_set (static_cast<ev_timer *>(this), after, repeat);
171 if (active) start (); 646 if (active) start ();
172 } 647 }
173 648
174 void start (ev_tstamp after, ev_tstamp repeat = 0.) 649 void start (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
175 { 650 {
176 set (after, repeat); 651 set (after, repeat);
177 start (); 652 start ();
178 } 653 }
179 654
180 void again () 655 void again () throw ()
181 { 656 {
182 ev_timer_again (EV_A_ static_cast<ev_timer *>(this)); 657 ev_timer_again (EV_A_ static_cast<ev_timer *>(this));
183 } 658 }
184 EV_END_WATCHER (timer, timer) 659 EV_END_WATCHER (timer, timer)
185 660
186 #if EV_PERIODIC_ENABLE 661 #if EV_PERIODIC_ENABLE
187 EV_BEGIN_WATCHER (periodic, periodic) 662 EV_BEGIN_WATCHER (periodic, periodic)
188 void set (ev_tstamp at, ev_tstamp interval = 0.) 663 void set (ev_tstamp at, ev_tstamp interval = 0.) throw ()
189 { 664 {
190 int active = is_active (); 665 int active = is_active ();
191 if (active) stop (); 666 if (active) stop ();
192 ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0); 667 ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0);
193 if (active) start (); 668 if (active) start ();
194 } 669 }
195 670
196 void start (ev_tstamp at, ev_tstamp interval = 0.) 671 void start (ev_tstamp at, ev_tstamp interval = 0.) throw ()
197 { 672 {
198 set (at, interval); 673 set (at, interval);
199 start (); 674 start ();
200 } 675 }
201 676
202 void again () 677 void again () throw ()
203 { 678 {
204 ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); 679 ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this));
205 } 680 }
206 EV_END_WATCHER (periodic, periodic) 681 EV_END_WATCHER (periodic, periodic)
207 #endif 682 #endif
208 683
209 EV_BEGIN_WATCHER (sig, signal) 684 EV_BEGIN_WATCHER (sig, signal)
210 void set (int signum) 685 void set (int signum) throw ()
211 { 686 {
212 int active = is_active (); 687 int active = is_active ();
213 if (active) stop (); 688 if (active) stop ();
214 ev_signal_set (static_cast<ev_signal *>(this), signum); 689 ev_signal_set (static_cast<ev_signal *>(this), signum);
215 if (active) start (); 690 if (active) start ();
216 } 691 }
217 692
218 void start (int signum) 693 void start (int signum) throw ()
219 { 694 {
220 set (signum); 695 set (signum);
221 start (); 696 start ();
222 } 697 }
223 EV_END_WATCHER (sig, signal) 698 EV_END_WATCHER (sig, signal)
224 699
225 EV_BEGIN_WATCHER (child, child) 700 EV_BEGIN_WATCHER (child, child)
226 void set (int pid) 701 void set (int pid, int trace = 0) throw ()
227 { 702 {
228 int active = is_active (); 703 int active = is_active ();
229 if (active) stop (); 704 if (active) stop ();
230 ev_child_set (static_cast<ev_child *>(this), pid); 705 ev_child_set (static_cast<ev_child *>(this), pid, trace);
231 if (active) start (); 706 if (active) start ();
232 } 707 }
233 708
234 void start (int pid) 709 void start (int pid, int trace = 0) throw ()
235 { 710 {
236 set (pid); 711 set (pid, trace);
237 start (); 712 start ();
238 } 713 }
239 EV_END_WATCHER (child, child) 714 EV_END_WATCHER (child, child)
240 715
241 #if EV_STAT_ENABLE 716 #if EV_STAT_ENABLE
242 EV_BEGIN_WATCHER (stat, stat) 717 EV_BEGIN_WATCHER (stat, stat)
243 void set (const char *path, ev_tstamp interval = 0.) 718 void set (const char *path, ev_tstamp interval = 0.) throw ()
244 { 719 {
245 int active = is_active (); 720 int active = is_active ();
246 if (active) stop (); 721 if (active) stop ();
247 ev_stat_set (static_cast<ev_stat *>(this), path, interval); 722 ev_stat_set (static_cast<ev_stat *>(this), path, interval);
248 if (active) start (); 723 if (active) start ();
249 } 724 }
250 725
251 void start (const char *path, ev_tstamp interval = 0.) 726 void start (const char *path, ev_tstamp interval = 0.) throw ()
252 { 727 {
728 stop ();
253 set (path, interval); 729 set (path, interval);
254 start (); 730 start ();
255 } 731 }
256 732
257 void update () 733 void update () throw ()
258 { 734 {
259 ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); 735 ev_stat_stat (EV_A_ static_cast<ev_stat *>(this));
260 } 736 }
261 EV_END_WATCHER (stat, stat) 737 EV_END_WATCHER (stat, stat)
262 #endif 738 #endif
263 739
264 EV_BEGIN_WATCHER (idle, idle) 740 EV_BEGIN_WATCHER (idle, idle)
265 void set () { } 741 void set () throw () { }
266 EV_END_WATCHER (idle, idle) 742 EV_END_WATCHER (idle, idle)
267 743
268 EV_BEGIN_WATCHER (prepare, prepare) 744 EV_BEGIN_WATCHER (prepare, prepare)
269 void set () { } 745 void set () throw () { }
270 EV_END_WATCHER (prepare, prepare) 746 EV_END_WATCHER (prepare, prepare)
271 747
272 EV_BEGIN_WATCHER (check, check) 748 EV_BEGIN_WATCHER (check, check)
273 void set () { } 749 void set () throw () { }
274 EV_END_WATCHER (check, check) 750 EV_END_WATCHER (check, check)
275 751
276 #if EV_EMBED_ENABLE 752 #if EV_EMBED_ENABLE
277 EV_BEGIN_WATCHER (embed, embed) 753 EV_BEGIN_WATCHER (embed, embed)
278 void set (struct ev_loop *loop) 754 void set (struct ev_loop *embedded_loop) throw ()
279 { 755 {
280 int active = is_active (); 756 int active = is_active ();
281 if (active) stop (); 757 if (active) stop ();
282 ev_embed_set (static_cast<ev_embed *>(this), loop); 758 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
283 if (active) start (); 759 if (active) start ();
284 } 760 }
285 761
286 void start (struct ev_loop *embedded_loop) 762 void start (struct ev_loop *embedded_loop) throw ()
287 { 763 {
288 set (embedded_loop); 764 set (embedded_loop);
289 start (); 765 start ();
290 } 766 }
291 767
… …
296 EV_END_WATCHER (embed, embed) 772 EV_END_WATCHER (embed, embed)
297 #endif 773 #endif
298 774
299 #if EV_FORK_ENABLE 775 #if EV_FORK_ENABLE
300 EV_BEGIN_WATCHER (fork, fork) 776 EV_BEGIN_WATCHER (fork, fork)
301 void set () { } 777 void set () throw () { }
302 EV_END_WATCHER (fork, fork) 778 EV_END_WATCHER (fork, fork)
303 #endif 779 #endif
304 780
781 #if EV_ASYNC_ENABLE
782 EV_BEGIN_WATCHER (async, async)
783 void set () throw () { }
784
785 void send () throw ()
786 {
787 ev_async_send (EV_A_ static_cast<ev_async *>(this));
788 }
789
790 bool async_pending () throw ()
791 {
792 return ev_async_pending (static_cast<ev_async *>(this));
793 }
794 EV_END_WATCHER (async, async)
795 #endif
796
797 #undef EV_PX
798 #undef EV_PX_
305 #undef EV_CONSTRUCT 799 #undef EV_CONSTRUCT
306 #undef EV_BEGIN_WATCHER 800 #undef EV_BEGIN_WATCHER
307 #undef EV_END_WATCHER 801 #undef EV_END_WATCHER
308} 802}
309 803

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