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Comparing libev/ev++.h (file contents):
Revision 1.9 by root, Tue Nov 27 10:59:10 2007 UTC vs.
Revision 1.38 by root, Mon Jan 28 11:43:37 2008 UTC

1/*
2 * libev simple C++ wrapper classes
3 *
4 * Copyright (c) 2007 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 object { };
12
13 void *obj;
14 void (object::*meth)(watcher &, int);
15
16 /* a proxy is a kind of recipe on how to call a specific class method */
17 struct proxy_base {
18 virtual void call (void *obj, void (object::*meth)(watcher &, int), watcher &w, int) const = 0;
19 };
20 template<class O1, class O2>
21 struct proxy : proxy_base {
22 virtual void call (void *obj, void (object::*meth)(watcher &, int), watcher &w, int e) const
23 {
24 ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<void (O2::*)(watcher &, int)>(meth)))
25 (w, e);
26 }
27 };
28
29 proxy_base *prxy;
30
31 public:
32 template<class O1, class O2>
33 explicit callback (O1 *object, void (O2::*method)(watcher &, int))
34 {
35 static proxy<O1,O2> p;
36 obj = reinterpret_cast<void *>(object);
37 meth = reinterpret_cast<void (object::*)(watcher &, int)>(method);
38 prxy = &p;
39 }
40
41 void call (watcher *w, int e) const
42 {
43 return prxy->call (obj, meth, *w, e);
44 }
45 };
46 60
47 enum { 61 enum {
48 UNDEF = EV_UNDEF, 62 UNDEF = EV_UNDEF,
49 NONE = EV_NONE, 63 NONE = EV_NONE,
50 READ = EV_READ, 64 READ = EV_READ,
… …
60 FORK = EV_FORK, 74 FORK = EV_FORK,
61 EMBED = EV_EMBED, 75 EMBED = EV_EMBED,
62 ERROR = EV_ERROR, 76 ERROR = EV_ERROR,
63 }; 77 };
64 78
65 typedef ev_tstamp tstamp; 79 enum
80 {
81 AUTO = EVFLAG_AUTO,
82 NOENV = EVFLAG_NOENV,
83 FORKCHECK = EVFLAG_FORKCHECK,
84 SELECT = EVBACKEND_SELECT,
85 POLL = EVBACKEND_POLL,
86 EPOLL = EVBACKEND_EPOLL,
87 KQUEUE = EVBACKEND_KQUEUE,
88 DEVPOLL = EVBACKEND_DEVPOLL,
89 PORT = EVBACKEND_PORT
90 };
66 91
67 inline ev_tstamp now (EV_P) 92 enum
93 {
94 NONBLOCK = EVLOOP_NONBLOCK,
95 ONESHOT = EVLOOP_ONESHOT
96 };
97
98 enum how_t
99 {
100 ONE = EVUNLOOP_ONE,
101 ALL = EVUNLOOP_ALL
102 };
103
104 struct bad_loop
105#if EV_USE_STDEXCEPT
106 : std::runtime_error
107#endif
108 {
109#if EV_USE_STDEXCEPT
110 bad_loop ()
111 : std::runtime_error ("libev event loop cannot be initialized, bad value of LIBEV_FLAGS?")
68 { 112 {
113 }
114#endif
115 };
116
117#ifdef EV_AX
118# undef EV_AX
119#endif
120
121#ifdef EV_AX_
122# undef EV_AX_
123#endif
124
125#if EV_MULTIPLICITY
126# define EV_AX raw_loop
127# define EV_AX_ raw_loop,
128#else
129# define EV_AX
130# define EV_AX_
131#endif
132
133 struct loop_ref
134 {
135 loop_ref (EV_P) throw ()
136#if EV_MULTIPLICITY
137 : EV_AX (EV_A)
138#endif
139 {
140 }
141
142 bool operator == (const loop_ref &other) const throw ()
143 {
144#if EV_MULTIPLICITY
145 return EV_AX == other.EV_AX;
146#else
147 return true;
148#endif
149 }
150
151 bool operator != (const loop_ref &other) const throw ()
152 {
153#if EV_MULTIPLICITY
154 return ! (*this == other);
155#else
156 return false;
157#endif
158 }
159
160#if EV_MULTIPLICITY
161 bool operator == (struct ev_loop *other) const throw ()
162 {
163 return this->EV_AX == other;
164 }
165
166 bool operator != (struct ev_loop *other) const throw ()
167 {
168 return ! (*this == other);
169 }
170
171 bool operator == (const struct ev_loop *other) const throw ()
172 {
173 return this->EV_AX == other;
174 }
175
176 bool operator != (const struct ev_loop *other) const throw ()
177 {
178 return (*this == other);
179 }
180
181 operator struct ev_loop * () const throw ()
182 {
183 return EV_AX;
184 }
185
186 operator const struct ev_loop * () const throw ()
187 {
188 return EV_AX;
189 }
190
191 bool is_default () const throw ()
192 {
193 return EV_AX == ev_default_loop (0);
194 }
195#endif
196
197 void loop (int flags = 0)
198 {
199 ev_loop (EV_AX_ flags);
200 }
201
202 void unloop (how_t how = ONE) throw ()
203 {
204 ev_unloop (EV_AX_ how);
205 }
206
207 void post_fork () throw ()
208 {
209#if EV_MULTIPLICITY
210 ev_loop_fork (EV_AX);
211#else
212 ev_default_fork ();
213#endif
214 }
215
216 unsigned int count () const throw ()
217 {
218 return ev_loop_count (EV_AX);
219 }
220
221 unsigned int backend () const throw ()
222 {
223 return ev_backend (EV_AX);
224 }
225
226 tstamp now () const throw ()
227 {
69 return ev_now (EV_A); 228 return ev_now (EV_AX);
229 }
230
231 void ref () throw ()
232 {
233 ev_ref (EV_AX);
234 }
235
236 void unref () throw ()
237 {
238 ev_unref (EV_AX);
239 }
240
241 void set_io_collect_interval (tstamp interval) throw ()
242 {
243 ev_set_io_collect_interval (EV_AX_ interval);
244 }
245
246 void set_timeout_collect_interval (tstamp interval) throw ()
247 {
248 ev_set_timeout_collect_interval (EV_AX_ interval);
249 }
250
251 // function callback
252 void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void* arg = 0) throw ()
253 {
254 ev_once (EV_AX_ fd, events, timeout, cb, arg);
255 }
256
257 // method callback
258 template<class K, void (K::*method)(int)>
259 void once (int fd, int events, tstamp timeout, K *object) throw ()
260 {
261 once (fd, events, timeout, method_thunk<K, method>, object);
262 }
263
264 template<class K, void (K::*method)(int)>
265 static void method_thunk (int revents, void* arg)
266 {
267 K *obj = static_cast<K *>(arg);
268 (obj->*method) (revents);
269 }
270
271 // const method callback
272 template<class K, void (K::*method)(int) const>
273 void once (int fd, int events, tstamp timeout, const K *object) throw ()
274 {
275 once (fd, events, timeout, const_method_thunk<K, method>, object);
276 }
277
278 template<class K, void (K::*method)(int) const>
279 static void const_method_thunk (int revents, void* arg)
280 {
281 K *obj = static_cast<K *>(arg);
282 (obj->*method) (revents);
283 }
284
285 // simple method callback
286 template<class K, void (K::*method)()>
287 void once (int fd, int events, tstamp timeout, K *object) throw ()
288 {
289 once (fd, events, timeout, method_noargs_thunk<K, method>, object);
290 }
291
292 template<class K, void (K::*method)()>
293 static void method_noargs_thunk (int revents, void* arg)
294 {
295 K *obj = static_cast<K *>(arg);
296 (obj->*method) ();
297 }
298
299 // simpler function callback
300 template<void (*cb)(int)>
301 void once (int fd, int events, tstamp timeout) throw ()
302 {
303 once (fd, events, timeout, simpler_func_thunk<cb>);
304 }
305
306 template<void (*cb)(int)>
307 static void simpler_func_thunk (int revents, void* arg)
308 {
309 (*cb) (revents);
310 }
311
312 // simplest function callback
313 template<void (*cb)()>
314 void once (int fd, int events, tstamp timeout) throw ()
315 {
316 once (fd, events, timeout, simplest_func_thunk<cb>);
317 }
318
319 template<void (*cb)()>
320 static void simplest_func_thunk (int revents, void* arg)
321 {
322 (*cb) ();
323 }
324
325 void feed_fd_event (int fd, int revents) throw ()
326 {
327 ev_feed_fd_event (EV_AX_ fd, revents);
328 }
329
330 void feed_signal_event (int signum) throw ()
331 {
332 ev_feed_signal_event (EV_AX_ signum);
333 }
334
335#if EV_MULTIPLICITY
336 struct ev_loop* EV_AX;
337#endif
338
339 };
340
341#if EV_MULTIPLICITY
342 struct dynamic_loop : loop_ref
343 {
344
345 dynamic_loop (unsigned int flags = AUTO) throw (bad_loop)
346 : loop_ref (ev_loop_new (flags))
347 {
348 if (!EV_AX)
349 throw bad_loop ();
350 }
351
352 ~dynamic_loop () throw ()
353 {
354 ev_loop_destroy (EV_AX);
355 EV_AX = 0;
356 }
357
358 private:
359
360 dynamic_loop (const dynamic_loop &);
361
362 dynamic_loop & operator= (const dynamic_loop &);
363
364 };
365#endif
366
367 struct default_loop : loop_ref
368 {
369 default_loop (unsigned int flags = AUTO) throw (bad_loop)
370#if EV_MULTIPLICITY
371 : loop_ref (ev_default_loop (flags))
372#endif
373 {
374 if (
375#if EV_MULTIPLICITY
376 !EV_AX
377#else
378 !ev_default_loop (flags)
379#endif
380 )
381 throw bad_loop ();
382 }
383
384 ~default_loop () throw ()
385 {
386 ev_default_destroy ();
387 }
388
389 private:
390 default_loop (const default_loop &);
391 default_loop &operator = (const default_loop &);
392 };
393
394 inline loop_ref get_default_loop () throw ()
395 {
396#if EV_MULTIPLICITY
397 return ev_default_loop (0);
398#else
399 return loop_ref ();
400#endif
401 }
402
403#undef EV_AX
404#undef EV_AX_
405
406#undef EV_PX
407#undef EV_PX_
408#if EV_MULTIPLICITY
409# define EV_PX loop_ref EV_A
410# define EV_PX_ loop_ref EV_A_
411#else
412# define EV_PX
413# define EV_PX_
414#endif
415
416 template<class ev_watcher, class watcher>
417 struct base : ev_watcher
418 {
419 #if EV_MULTIPLICITY
420 EV_PX;
421
422 void set (EV_PX) throw ()
423 {
424 this->EV_A = EV_A;
425 }
426 #endif
427
428 base (EV_PX) throw ()
429 #if EV_MULTIPLICITY
430 : EV_A (EV_A)
431 #endif
432 {
433 ev_init (this, 0);
434 }
435
436 void set_ (void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) throw ()
437 {
438 this->data = data;
439 ev_set_cb (static_cast<ev_watcher *>(this), cb);
440 }
441
442 // method callback
443 template<class K, void (K::*method)(watcher &w, int)>
444 void set (K *object) throw ()
445 {
446 set_ (object, method_thunk<K, method>);
447 }
448
449 template<class K, void (K::*method)(watcher &w, int)>
450 static void method_thunk (EV_P_ ev_watcher *w, int revents)
451 {
452 K *obj = static_cast<K *>(w->data);
453 (obj->*method) (*static_cast<watcher *>(w), revents);
454 }
455
456 // const method callback
457 template<class K, void (K::*method)(watcher &w, int) const>
458 void set (const K *object) throw ()
459 {
460 set_ (object, const_method_thunk<K, method>);
461 }
462
463 template<class K, void (K::*method)(watcher &w, int) const>
464 static void const_method_thunk (EV_P_ ev_watcher *w, int revents)
465 {
466 K *obj = static_cast<K *>(w->data);
467 (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents);
468 }
469
470 // function callback
471 template<void (*function)(watcher &w, int)>
472 void set (void *data = 0) throw ()
473 {
474 set_ (data, function_thunk<function>);
475 }
476
477 template<void (*function)(watcher &w, int)>
478 static void function_thunk (EV_P_ ev_watcher *w, int revents)
479 {
480 function (*static_cast<watcher *>(w), revents);
481 }
482
483 // simple callback
484 template<class K, void (K::*method)()>
485 void set (K *object) throw ()
486 {
487 set_ (object, method_noargs_thunk<K, method>);
488 }
489
490 template<class K, void (K::*method)()>
491 static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
492 {
493 K *obj = static_cast<K *>(w->data);
494 (obj->*method) ();
495 }
496
497 void operator ()(int events = EV_UNDEF)
498 {
499 return ev_cb (static_cast<ev_watcher *>(this))
500 (static_cast<ev_watcher *>(this), events);
501 }
502
503 bool is_active () const throw ()
504 {
505 return ev_is_active (static_cast<const ev_watcher *>(this));
506 }
507
508 bool is_pending () const throw ()
509 {
510 return ev_is_pending (static_cast<const ev_watcher *>(this));
511 }
512
513 void feed_event (int revents) throw ()
514 {
515 ev_feed_event (EV_A_ static_cast<const ev_watcher *>(this), revents);
516 }
517 };
518
519 inline tstamp now () throw ()
520 {
521 return ev_time ();
522 }
523
524 inline void delay (tstamp interval) throw ()
525 {
526 ev_sleep (interval);
527 }
528
529 inline int version_major () throw ()
530 {
531 return ev_version_major ();
532 }
533
534 inline int version_minor () throw ()
535 {
536 return ev_version_minor ();
537 }
538
539 inline unsigned int supported_backends () throw ()
540 {
541 return ev_supported_backends ();
542 }
543
544 inline unsigned int recommended_backends () throw ()
545 {
546 return ev_recommended_backends ();
547 }
548
549 inline unsigned int embeddable_backends () throw ()
550 {
551 return ev_embeddable_backends ();
552 }
553
554 inline void set_allocator (void *(*cb)(void *ptr, long size)) throw ()
555 {
556 ev_set_allocator (cb);
557 }
558
559 inline void set_syserr_cb (void (*cb)(const char *msg)) throw ()
560 {
561 ev_set_syserr_cb (cb);
70 } 562 }
71 563
72 #if EV_MULTIPLICITY 564 #if EV_MULTIPLICITY
73 565 #define EV_CONSTRUCT(cppstem,cstem) \
74 #define EV_CONSTRUCT(cppstem) \ 566 (EV_PX = get_default_loop ()) throw () \
75 EV_P; \ 567 : base<ev_ ## cstem, cppstem> (EV_A) \
76 \
77 void set (EV_P) \
78 { \ 568 { \
79 this->EV_A = EV_A; \ 569 }
80 } \
81 \
82 template<class O1, class O2> \
83 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int), EV_P = ev_default_loop (0)) \
84 : callback<cppstem> (object, method), EV_A (EV_A)
85
86 #else 570 #else
87 571 #define EV_CONSTRUCT(cppstem,cstem) \
88 #define EV_CONSTRUCT(cppstem) \ 572 () throw () \
89 template<class O1, class O2> \ 573 { \
90 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int)) \ 574 }
91 : callback<cppstem> (object, method)
92
93 #endif 575 #endif
94 576
95 /* using a template here would require quite a bit more lines, 577 /* using a template here would require quite a bit more lines,
96 * so a macro solution was chosen */ 578 * so a macro solution was chosen */
97 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 579 #define EV_BEGIN_WATCHER(cppstem,cstem) \
98 \ 580 \
99 struct cppstem : ev_ ## cstem, callback<cppstem> \ 581 struct cppstem : base<ev_ ## cstem, cppstem> \
100 { \ 582 { \
101 EV_CONSTRUCT (cppstem) \
102 { \
103 ev_init (static_cast<ev_ ## cstem *>(this), thunk); \
104 } \
105 \
106 bool is_active () const \
107 { \
108 return ev_is_active (static_cast<const ev_ ## cstem *>(this)); \
109 } \
110 \
111 bool is_pending () const \
112 { \
113 return ev_is_pending (static_cast<const ev_ ## cstem *>(this)); \
114 } \
115 \
116 void start () \ 583 void start () throw () \
117 { \ 584 { \
118 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 585 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
119 } \ 586 } \
120 \ 587 \
121 void stop () \ 588 void stop () throw () \
122 { \ 589 { \
123 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 590 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
124 } \ 591 } \
125 \ 592 \
126 void operator ()(int events = EV_UNDEF) \ 593 cppstem EV_CONSTRUCT(cppstem,cstem) \
127 { \ 594 \
128 return call (this, events); \
129 } \
130 \
131 ~cppstem () \ 595 ~cppstem () throw () \
132 { \ 596 { \
133 stop (); \ 597 stop (); \
134 } \ 598 } \
135 \ 599 \
600 using base<ev_ ## cstem, cppstem>::set; \
601 \
136 private: \ 602 private: \
137 \ 603 \
138 cppstem (const cppstem &o) \ 604 cppstem (const cppstem &o); \
139 : callback<cppstem> (this, (void (cppstem::*)(cppstem &, int))0) \
140 { /* disabled */ } \
141 \
142 void operator =(const cppstem &o) { /* disabled */ } \
143 \
144 static void thunk (EV_P_ struct ev_ ## cstem *w, int revents) \
145 { \ 605 \
146 (*static_cast<cppstem *>(w))(revents); \ 606 cppstem & operator =(const cppstem &o); \
147 } \
148 \ 607 \
149 public: 608 public:
150 609
151 #define EV_END_WATCHER(cppstem,cstem) \ 610 #define EV_END_WATCHER(cppstem,cstem) \
152 }; 611 };
153 612
154 EV_BEGIN_WATCHER (io, io) 613 EV_BEGIN_WATCHER (io, io)
155 void set (int fd, int events) 614 void set (int fd, int events) throw ()
156 { 615 {
157 int active = is_active (); 616 int active = is_active ();
158 if (active) stop (); 617 if (active) stop ();
159 ev_io_set (static_cast<ev_io *>(this), fd, events); 618 ev_io_set (static_cast<ev_io *>(this), fd, events);
160 if (active) start (); 619 if (active) start ();
161 } 620 }
162 621
163 void set (int events) 622 void set (int events) throw ()
164 { 623 {
165 int active = is_active (); 624 int active = is_active ();
166 if (active) stop (); 625 if (active) stop ();
167 ev_io_set (static_cast<ev_io *>(this), fd, events); 626 ev_io_set (static_cast<ev_io *>(this), fd, events);
168 if (active) start (); 627 if (active) start ();
169 } 628 }
170 629
171 void start (int fd, int events) 630 void start (int fd, int events) throw ()
172 { 631 {
173 set (fd, events); 632 set (fd, events);
174 start (); 633 start ();
175 } 634 }
176 EV_END_WATCHER (io, io) 635 EV_END_WATCHER (io, io)
177 636
178 EV_BEGIN_WATCHER (timer, timer) 637 EV_BEGIN_WATCHER (timer, timer)
179 void set (ev_tstamp after, ev_tstamp repeat = 0.) 638 void set (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
180 { 639 {
181 int active = is_active (); 640 int active = is_active ();
182 if (active) stop (); 641 if (active) stop ();
183 ev_timer_set (static_cast<ev_timer *>(this), after, repeat); 642 ev_timer_set (static_cast<ev_timer *>(this), after, repeat);
184 if (active) start (); 643 if (active) start ();
185 } 644 }
186 645
187 void start (ev_tstamp after, ev_tstamp repeat = 0.) 646 void start (ev_tstamp after, ev_tstamp repeat = 0.) throw ()
188 { 647 {
189 set (after, repeat); 648 set (after, repeat);
190 start (); 649 start ();
191 } 650 }
192 651
193 void again () 652 void again () throw ()
194 { 653 {
195 ev_timer_again (EV_A_ static_cast<ev_timer *>(this)); 654 ev_timer_again (EV_A_ static_cast<ev_timer *>(this));
196 } 655 }
197 EV_END_WATCHER (timer, timer) 656 EV_END_WATCHER (timer, timer)
198 657
199 #if EV_PERIODIC_ENABLE 658 #if EV_PERIODIC_ENABLE
200 EV_BEGIN_WATCHER (periodic, periodic) 659 EV_BEGIN_WATCHER (periodic, periodic)
201 void set (ev_tstamp at, ev_tstamp interval = 0.) 660 void set (ev_tstamp at, ev_tstamp interval = 0.) throw ()
202 { 661 {
203 int active = is_active (); 662 int active = is_active ();
204 if (active) stop (); 663 if (active) stop ();
205 ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0); 664 ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0);
206 if (active) start (); 665 if (active) start ();
207 } 666 }
208 667
209 void start (ev_tstamp at, ev_tstamp interval = 0.) 668 void start (ev_tstamp at, ev_tstamp interval = 0.) throw ()
210 { 669 {
211 set (at, interval); 670 set (at, interval);
212 start (); 671 start ();
213 } 672 }
214 673
215 void again () 674 void again () throw ()
216 { 675 {
217 ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); 676 ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this));
218 } 677 }
219 EV_END_WATCHER (periodic, periodic) 678 EV_END_WATCHER (periodic, periodic)
220 #endif 679 #endif
221 680
222 EV_BEGIN_WATCHER (sig, signal) 681 EV_BEGIN_WATCHER (sig, signal)
223 void set (int signum) 682 void set (int signum) throw ()
224 { 683 {
225 int active = is_active (); 684 int active = is_active ();
226 if (active) stop (); 685 if (active) stop ();
227 ev_signal_set (static_cast<ev_signal *>(this), signum); 686 ev_signal_set (static_cast<ev_signal *>(this), signum);
228 if (active) start (); 687 if (active) start ();
229 } 688 }
230 689
231 void start (int signum) 690 void start (int signum) throw ()
232 { 691 {
233 set (signum); 692 set (signum);
234 start (); 693 start ();
235 } 694 }
236 EV_END_WATCHER (sig, signal) 695 EV_END_WATCHER (sig, signal)
237 696
238 EV_BEGIN_WATCHER (child, child) 697 EV_BEGIN_WATCHER (child, child)
239 void set (int pid) 698 void set (int pid, int trace = 0) throw ()
240 { 699 {
241 int active = is_active (); 700 int active = is_active ();
242 if (active) stop (); 701 if (active) stop ();
243 ev_child_set (static_cast<ev_child *>(this), pid); 702 ev_child_set (static_cast<ev_child *>(this), pid, trace);
244 if (active) start (); 703 if (active) start ();
245 } 704 }
246 705
247 void start (int pid) 706 void start (int pid, int trace = 0) throw ()
248 { 707 {
249 set (pid); 708 set (pid, trace);
250 start (); 709 start ();
251 } 710 }
252 EV_END_WATCHER (child, child) 711 EV_END_WATCHER (child, child)
253 712
254 #if EV_STAT_ENABLE 713 #if EV_STAT_ENABLE
255 EV_BEGIN_WATCHER (stat, stat) 714 EV_BEGIN_WATCHER (stat, stat)
256 void set (const char *path, ev_tstamp interval = 0.) 715 void set (const char *path, ev_tstamp interval = 0.) throw ()
257 { 716 {
258 int active = is_active (); 717 int active = is_active ();
259 if (active) stop (); 718 if (active) stop ();
260 ev_stat_set (static_cast<ev_stat *>(this), path, interval); 719 ev_stat_set (static_cast<ev_stat *>(this), path, interval);
261 if (active) start (); 720 if (active) start ();
262 } 721 }
263 722
264 void start (const char *path, ev_tstamp interval = 0.) 723 void start (const char *path, ev_tstamp interval = 0.) throw ()
265 { 724 {
725 stop ();
266 set (path, interval); 726 set (path, interval);
267 start (); 727 start ();
268 } 728 }
269 729
270 void update () 730 void update () throw ()
271 { 731 {
272 ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); 732 ev_stat_stat (EV_A_ static_cast<ev_stat *>(this));
273 } 733 }
274 EV_END_WATCHER (stat, stat) 734 EV_END_WATCHER (stat, stat)
275 #endif 735 #endif
276 736
277 EV_BEGIN_WATCHER (idle, idle) 737 EV_BEGIN_WATCHER (idle, idle)
278 void set () { } 738 void set () throw () { }
279 EV_END_WATCHER (idle, idle) 739 EV_END_WATCHER (idle, idle)
280 740
281 EV_BEGIN_WATCHER (prepare, prepare) 741 EV_BEGIN_WATCHER (prepare, prepare)
282 void set () { } 742 void set () throw () { }
283 EV_END_WATCHER (prepare, prepare) 743 EV_END_WATCHER (prepare, prepare)
284 744
285 EV_BEGIN_WATCHER (check, check) 745 EV_BEGIN_WATCHER (check, check)
286 void set () { } 746 void set () throw () { }
287 EV_END_WATCHER (check, check) 747 EV_END_WATCHER (check, check)
288 748
289 #if EV_EMBED_ENABLE 749 #if EV_EMBED_ENABLE
290 EV_BEGIN_WATCHER (embed, embed) 750 EV_BEGIN_WATCHER (embed, embed)
291 void set (struct ev_loop *loop) 751 void start (struct ev_loop *embedded_loop) throw ()
292 { 752 {
293 int active = is_active (); 753 stop ();
294 if (active) stop ();
295 ev_embed_set (static_cast<ev_embed *>(this), loop); 754 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
296 if (active) start ();
297 }
298
299 void start (struct ev_loop *embedded_loop)
300 {
301 set (embedded_loop);
302 start (); 755 start ();
303 } 756 }
304 757
305 void sweep () 758 void sweep ()
306 { 759 {
307 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this)); 760 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
308 } 761 }
309 EV_END_WATCHER (embed, embed) 762 EV_END_WATCHER (embed, embed)
310 #endif 763 #endif
311 764
765 #if EV_FORK_ENABLE
766 EV_BEGIN_WATCHER (fork, fork)
767 void set () throw () { }
768 EV_END_WATCHER (fork, fork)
769 #endif
770
771 #undef EV_PX
772 #undef EV_PX_
312 #undef EV_CONSTRUCT 773 #undef EV_CONSTRUCT
313 #undef EV_BEGIN_WATCHER 774 #undef EV_BEGIN_WATCHER
314 #undef EV_END_WATCHER 775 #undef EV_END_WATCHER
315} 776}
316 777

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