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Comparing libev/ev++.h (file contents):
Revision 1.20 by root, Thu Dec 20 08:17:57 2007 UTC vs.
Revision 1.28 by llucax, Fri Jan 18 18:14:41 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
4#ifdef EV_H 43#ifdef EV_H
5# include EV_H 44# include EV_H
6#else 45#else
7# include <ev.h> 46# include "ev.h"
8#endif 47#endif
9 48
10namespace ev { 49namespace ev {
11 50
12 template<class ev_watcher, class watcher> 51 typedef ev_tstamp tstamp;
13 struct base : ev_watcher
14 {
15 #if EV_MULTIPLICITY
16 EV_P;
17
18 void set (EV_P)
19 {
20 this->EV_A = EV_A;
21 }
22 #endif
23
24 base ()
25 {
26 ev_init (this, 0);
27 }
28
29 void set_ (void *data, void (*cb)(EV_P_ ev_watcher *w, int revents))
30 {
31 this->data = data;
32 ev_set_cb (static_cast<ev_watcher *>(this), cb);
33 }
34
35 // method callback
36 template<class K, void (K::*method)(watcher &w, int)>
37 void set (K *object)
38 {
39 set_ (object, method_thunk<K, method>);
40 }
41
42 template<class K, void (K::*method)(watcher &w, int)>
43 static void method_thunk (EV_P_ ev_watcher *w, int revents)
44 {
45 K *obj = static_cast<K *>(w->data);
46 (obj->*method) (*static_cast<watcher *>(w), revents);
47 }
48
49 // const method callback
50 template<class K, void (K::*method)(watcher &w, int) const>
51 void set (const K *object)
52 {
53 set_ (object, const_method_thunk<K, method>);
54 }
55
56 template<class K, void (K::*method)(watcher &w, int) const>
57 static void const_method_thunk (EV_P_ ev_watcher *w, int revents)
58 {
59 K *obj = static_cast<K *>(w->data);
60 (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents);
61 }
62
63 // function callback
64 template<void (*function)(watcher &w, int)>
65 void set (void *data = 0)
66 {
67 set_ (data, function_thunk<function>);
68 }
69
70 template<void (*function)(watcher &w, int)>
71 static void function_thunk (EV_P_ ev_watcher *w, int revents)
72 {
73 function (*static_cast<watcher *>(w), revents);
74 }
75
76 // simple callback
77 template<class K, void (K::*method)()>
78 void set (K *object)
79 {
80 set_ (object, method_noargs_thunk<K, method>);
81 }
82
83 template<class K, void (K::*method)()>
84 static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
85 {
86 K *obj = static_cast<K *>(w->data);
87 (obj->*method) ();
88 }
89
90 void operator ()(int events = EV_UNDEF)
91 {
92 return ev_cb (static_cast<ev_watcher *>(this))
93 (static_cast<ev_watcher *>(this), events);
94 }
95
96 bool is_active () const
97 {
98 return ev_is_active (static_cast<const ev_watcher *>(this));
99 }
100
101 bool is_pending () const
102 {
103 return ev_is_pending (static_cast<const ev_watcher *>(this));
104 }
105 };
106 52
107 enum { 53 enum {
108 UNDEF = EV_UNDEF, 54 UNDEF = EV_UNDEF,
109 NONE = EV_NONE, 55 NONE = EV_NONE,
110 READ = EV_READ, 56 READ = EV_READ,
… …
120 FORK = EV_FORK, 66 FORK = EV_FORK,
121 EMBED = EV_EMBED, 67 EMBED = EV_EMBED,
122 ERROR = EV_ERROR, 68 ERROR = EV_ERROR,
123 }; 69 };
124 70
125 typedef ev_tstamp tstamp; 71 enum
72 {
73 AUTO = EVFLAG_AUTO,
74 NOENV = EVFLAG_NOENV,
75 FORKCHECK = EVFLAG_FORKCHECK,
76 SELECT = EVBACKEND_SELECT,
77 POLL = EVBACKEND_POLL,
78 EPOLL = EVBACKEND_EPOLL,
79 KQUEUE = EVBACKEND_KQUEUE,
80 DEVPOLL = EVBACKEND_DEVPOLL,
81 PORT = EVBACKEND_PORT
82 };
126 83
127 inline ev_tstamp now (EV_P) 84 enum
85 {
86 NONBLOCK = EVLOOP_NONBLOCK,
87 ONESHOT = EVLOOP_ONESHOT
88 };
89
90 enum how_t
91 {
92 ONE = EVUNLOOP_ONE,
93 ALL = EVUNLOOP_ALL
94 };
95
96#ifdef EV_AX
97# undef EV_AX
98#endif
99
100#ifdef EV_AX_
101# undef EV_AX_
102#endif
103
104#if EV_MULTIPLICITY
105# define EV_AX raw_loop
106# define EV_AX_ raw_loop,
107#else
108# define EV_AX
109# define EV_AX_
110#endif
111
112 struct loop_ref
113 {
114
115 loop_ref (EV_P)
116#if EV_MULTIPLICITY
117 : EV_AX (EV_A)
118#endif
128 { 119 {
120 }
121
122 bool operator== (const loop_ref &other) const
123 {
124#if EV_MULTIPLICITY
125 return this->EV_AX == other.EV_AX;
126#else
127 return true;
128#endif
129 }
130
131 bool operator!= (const loop_ref &other) const
132 {
133#if EV_MULTIPLICITY
134 return ! (*this == other);
135#else
136 return false;
137#endif
138 }
139
140#if EV_MULTIPLICITY
141 bool operator== (struct ev_loop *other) const
142 {
143 return this->EV_AX == other;
144 }
145
146 bool operator!= (struct ev_loop *other) const
147 {
148 return ! (*this == other);
149 }
150
151 bool operator== (const struct ev_loop *other) const
152 {
153 return this->EV_AX == other;
154 }
155
156 bool operator!= (const struct ev_loop *other) const
157 {
158 return (*this == other);
159 }
160
161 operator struct ev_loop * () const
162 {
163 return EV_AX;
164 }
165
166 operator const struct ev_loop * () const
167 {
168 return EV_AX;
169 }
170
171 bool is_default () const
172 {
173 return EV_AX == ev_default_loop (0);
174 }
175#endif
176
177 void loop (int flags = 0)
178 {
179 ev_loop (EV_AX_ flags);
180 }
181
182 void unloop (how_t how = ONE)
183 {
184 ev_unloop (EV_AX_ how);
185 }
186
187 void post_fork ()
188 {
189#if EV_MULTIPLICITY
190 ev_loop_fork (EV_AX);
191#else
192 ev_default_fork ();
193#endif
194 }
195
196 unsigned int count () const
197 {
198 return ev_loop_count (EV_AX);
199 }
200
201 unsigned int backend () const
202 {
203 return ev_backend (EV_AX);
204 }
205
206 tstamp now () const
207 {
129 return ev_now (EV_A); 208 return ev_now (EV_AX);
209 }
210
211 void ref ()
212 {
213 ev_ref (EV_AX);
214 }
215
216 void unref ()
217 {
218 ev_unref (EV_AX);
219 }
220
221 void set_io_collect_interval (tstamp interval)
222 {
223 ev_set_io_collect_interval (EV_AX_ interval);
224 }
225
226 void set_timeout_collect_interval (tstamp interval)
227 {
228 ev_set_timeout_collect_interval (EV_AX_ interval);
229 }
230
231 // function callback
232 void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void* arg = 0)
233 {
234 ev_once (EV_AX_ fd, events, timeout, cb, arg);
235 }
236
237 // method callback
238 template<class K, void (K::*method)(int)>
239 void once (int fd, int events, tstamp timeout, K *object)
240 {
241 once (fd, events, timeout, method_thunk<K, method>, object);
242 }
243
244 template<class K, void (K::*method)(int)>
245 static void method_thunk (int revents, void* arg)
246 {
247 K *obj = static_cast<K *>(arg);
248 (obj->*method) (revents);
249 }
250
251 // const method callback
252 template<class K, void (K::*method)(int) const>
253 void once (int fd, int events, tstamp timeout, const K *object)
254 {
255 once (fd, events, timeout, const_method_thunk<K, method>, object);
256 }
257
258 template<class K, void (K::*method)(int) const>
259 static void const_method_thunk (int revents, void* arg)
260 {
261 K *obj = static_cast<K *>(arg);
262 (obj->*method) (revents);
263 }
264
265 // simple method callback
266 template<class K, void (K::*method)()>
267 void once (int fd, int events, tstamp timeout, K *object)
268 {
269 once (fd, events, timeout, method_noargs_thunk<K, method>, object);
270 }
271
272 template<class K, void (K::*method)()>
273 static void method_noargs_thunk (int revents, void* arg)
274 {
275 K *obj = static_cast<K *>(arg);
276 (obj->*method) ();
277 }
278
279 // simpler function callback
280 template<void (*cb)(int)>
281 void once (int fd, int events, tstamp timeout)
282 {
283 once (fd, events, timeout, simpler_func_thunk<cb>);
284 }
285
286 template<void (*cb)(int)>
287 static void simpler_func_thunk (int revents, void* arg)
288 {
289 (*cb) (revents);
290 }
291
292 // simplest function callback
293 template<void (*cb)()>
294 void once (int fd, int events, tstamp timeout)
295 {
296 once (fd, events, timeout, simplest_func_thunk<cb>);
297 }
298
299 template<void (*cb)()>
300 static void simplest_func_thunk (int revents, void* arg)
301 {
302 (*cb) ();
303 }
304
305 void feed_fd_event (int fd, int revents)
306 {
307 ev_feed_fd_event (EV_AX_ fd, revents);
308 }
309
310 void feed_signal_event (int signum)
311 {
312 ev_feed_signal_event (EV_AX_ signum);
313 }
314
315#if EV_MULTIPLICITY
316 struct ev_loop* EV_AX;
317#endif
318
319 };
320
321#if EV_MULTIPLICITY
322 struct dynamic_loop: loop_ref
323 {
324
325 dynamic_loop (unsigned int flags = AUTO)
326 : loop_ref (ev_loop_new (flags))
327 {
328 }
329
330 ~dynamic_loop ()
331 {
332 ev_loop_destroy (EV_AX);
333 EV_AX = 0;
334 }
335
336 private:
337
338 dynamic_loop (const dynamic_loop &);
339
340 dynamic_loop & operator= (const dynamic_loop &);
341
342 };
343#endif
344
345 struct default_loop: loop_ref
346 {
347
348 default_loop (unsigned int flags = AUTO)
349#if EV_MULTIPLICITY
350 : loop_ref (ev_default_loop (flags))
351 {
352 }
353#else
354 {
355 ev_default_loop (flags);
356 }
357#endif
358
359 ~default_loop ()
360 {
361 ev_default_destroy ();
362#if EV_MULTIPLICITY
363 EV_AX = 0;
364#endif
365 }
366
367 private:
368
369 default_loop (const default_loop &);
370
371 default_loop & operator= (const default_loop &);
372
373 };
374
375 inline loop_ref get_default_loop ()
376 {
377#if EV_MULTIPLICITY
378 return ev_default_loop (0);
379#else
380 return loop_ref ();
381#endif
382 }
383
384#undef EV_AX
385#undef EV_AX_
386
387#undef EV_PX
388#undef EV_PX_
389#if EV_MULTIPLICITY
390# define EV_PX loop_ref EV_A
391# define EV_PX_ loop_ref EV_A_
392#else
393# define EV_PX
394# define EV_PX_
395#endif
396
397 template<class ev_watcher, class watcher>
398 struct base : ev_watcher
399 {
400 #if EV_MULTIPLICITY
401 EV_PX;
402
403 void set (EV_PX)
404 {
405 this->EV_A = EV_A;
406 }
407 #endif
408
409 base (EV_PX)
410 #if EV_MULTIPLICITY
411 : EV_A (EV_A)
412 #endif
413 {
414 ev_init (this, 0);
415 }
416
417 void set_ (void *data, void (*cb)(EV_P_ ev_watcher *w, int revents))
418 {
419 this->data = data;
420 ev_set_cb (static_cast<ev_watcher *>(this), cb);
421 }
422
423 // method callback
424 template<class K, void (K::*method)(watcher &w, int)>
425 void set (K *object)
426 {
427 set_ (object, method_thunk<K, method>);
428 }
429
430 template<class K, void (K::*method)(watcher &w, int)>
431 static void method_thunk (EV_P_ ev_watcher *w, int revents)
432 {
433 K *obj = static_cast<K *>(w->data);
434 (obj->*method) (*static_cast<watcher *>(w), revents);
435 }
436
437 // const method callback
438 template<class K, void (K::*method)(watcher &w, int) const>
439 void set (const K *object)
440 {
441 set_ (object, const_method_thunk<K, method>);
442 }
443
444 template<class K, void (K::*method)(watcher &w, int) const>
445 static void const_method_thunk (EV_P_ ev_watcher *w, int revents)
446 {
447 K *obj = static_cast<K *>(w->data);
448 (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents);
449 }
450
451 // function callback
452 template<void (*function)(watcher &w, int)>
453 void set (void *data = 0)
454 {
455 set_ (data, function_thunk<function>);
456 }
457
458 template<void (*function)(watcher &w, int)>
459 static void function_thunk (EV_P_ ev_watcher *w, int revents)
460 {
461 function (*static_cast<watcher *>(w), revents);
462 }
463
464 // simple callback
465 template<class K, void (K::*method)()>
466 void set (K *object)
467 {
468 set_ (object, method_noargs_thunk<K, method>);
469 }
470
471 template<class K, void (K::*method)()>
472 static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
473 {
474 K *obj = static_cast<K *>(w->data);
475 (obj->*method) ();
476 }
477
478 void operator ()(int events = EV_UNDEF)
479 {
480 return ev_cb (static_cast<ev_watcher *>(this))
481 (static_cast<ev_watcher *>(this), events);
482 }
483
484 bool is_active () const
485 {
486 return ev_is_active (static_cast<const ev_watcher *>(this));
487 }
488
489 bool is_pending () const
490 {
491 return ev_is_pending (static_cast<const ev_watcher *>(this));
492 }
493
494 void feed_event (int revents)
495 {
496 ev_feed_event (EV_A_ static_cast<const ev_watcher *>(this), revents);
497 }
498 };
499
500 inline void delay (tstamp interval)
501 {
502 ev_sleep (interval);
503 }
504
505 inline int version_major ()
506 {
507 return ev_version_major ();
508 }
509
510 inline int version_minor ()
511 {
512 return ev_version_minor ();
513 }
514
515 inline unsigned int supported_backends ()
516 {
517 return ev_supported_backends ();
518 }
519
520 inline unsigned int recommended_backends ()
521 {
522 return ev_recommended_backends ();
523 }
524
525 inline unsigned int embeddable_backends ()
526 {
527 return ev_embeddable_backends ();
528 }
529
530 inline void set_allocator (void *(*cb)(void *ptr, long size))
531 {
532 ev_set_allocator (cb);
533 }
534
535 inline void set_syserr_cb (void (*cb)(const char *msg))
536 {
537 ev_set_syserr_cb (cb);
130 } 538 }
131 539
132 #if EV_MULTIPLICITY 540 #if EV_MULTIPLICITY
133 #define EV_CONSTRUCT \ 541 #define EV_CONSTRUCT(cppstem,cstem) \
134 (EV_P = EV_DEFAULT) \ 542 (EV_PX = get_default_loop ()) \
543 : base<ev_ ## cstem, cppstem> (EV_A) \
135 { \ 544 { \
136 set (EV_A); \
137 } 545 }
138 #else 546 #else
139 #define EV_CONSTRUCT \ 547 #define EV_CONSTRUCT(cppstem,cstem) \
140 () \ 548 () \
141 { \ 549 { \
142 } 550 }
143 #endif 551 #endif
144 552
… …
156 void stop () \ 564 void stop () \
157 { \ 565 { \
158 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 566 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
159 } \ 567 } \
160 \ 568 \
161 cppstem EV_CONSTRUCT \ 569 cppstem EV_CONSTRUCT(cppstem,cstem) \
162 \ 570 \
163 ~cppstem () \ 571 ~cppstem () \
164 { \ 572 { \
165 stop (); \ 573 stop (); \
166 } \ 574 } \
167 \ 575 \
168 using base<ev_ ## cstem, cppstem>::set; \ 576 using base<ev_ ## cstem, cppstem>::set; \
169 \ 577 \
170 private: \ 578 private: \
171 \ 579 \
172 cppstem (const cppstem &o) \ 580 cppstem (const cppstem &o); \
173 { /* disabled */ } \
174 \ 581 \
175 void operator =(const cppstem &o) { /* disabled */ } \ 582 cppstem & operator =(const cppstem &o); \
176 \ 583 \
177 public: 584 public:
178 585
179 #define EV_END_WATCHER(cppstem,cstem) \ 586 #define EV_END_WATCHER(cppstem,cstem) \
180 }; 587 };
… …
335 EV_BEGIN_WATCHER (fork, fork) 742 EV_BEGIN_WATCHER (fork, fork)
336 void set () { } 743 void set () { }
337 EV_END_WATCHER (fork, fork) 744 EV_END_WATCHER (fork, fork)
338 #endif 745 #endif
339 746
747 #undef EV_PX
748 #undef EV_PX_
340 #undef EV_CONSTRUCT 749 #undef EV_CONSTRUCT
341 #undef EV_BEGIN_WATCHER 750 #undef EV_BEGIN_WATCHER
342 #undef EV_END_WATCHER 751 #undef EV_END_WATCHER
752
343} 753}
344 754
345#endif 755#endif
346 756

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