1 | /* |
1 | /* |
2 | * libev simple C++ wrapper classes |
2 | * libev simple C++ wrapper classes |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
56 | |
56 | |
57 | namespace ev { |
57 | namespace ev { |
58 | |
58 | |
59 | typedef ev_tstamp tstamp; |
59 | typedef ev_tstamp tstamp; |
60 | |
60 | |
61 | enum |
61 | enum { |
62 | { |
|
|
63 | UNDEF = EV_UNDEF, |
62 | UNDEF = EV_UNDEF, |
64 | NONE = EV_NONE, |
63 | NONE = EV_NONE, |
65 | READ = EV_READ, |
64 | READ = EV_READ, |
66 | WRITE = EV_WRITE, |
65 | WRITE = EV_WRITE, |
|
|
66 | #if EV_COMPAT3 |
67 | TIMEOUT = EV_TIMEOUT, |
67 | TIMEOUT = EV_TIMEOUT, |
|
|
68 | #endif |
|
|
69 | TIMER = EV_TIMER, |
68 | PERIODIC = EV_PERIODIC, |
70 | PERIODIC = EV_PERIODIC, |
69 | SIGNAL = EV_SIGNAL, |
71 | SIGNAL = EV_SIGNAL, |
70 | CHILD = EV_CHILD, |
72 | CHILD = EV_CHILD, |
71 | STAT = EV_STAT, |
73 | STAT = EV_STAT, |
72 | IDLE = EV_IDLE, |
74 | IDLE = EV_IDLE, |
… | |
… | |
74 | PREPARE = EV_PREPARE, |
76 | PREPARE = EV_PREPARE, |
75 | FORK = EV_FORK, |
77 | FORK = EV_FORK, |
76 | ASYNC = EV_ASYNC, |
78 | ASYNC = EV_ASYNC, |
77 | EMBED = EV_EMBED, |
79 | EMBED = EV_EMBED, |
78 | # undef ERROR // some systems stupidly #define ERROR |
80 | # undef ERROR // some systems stupidly #define ERROR |
79 | ERROR = EV_ERROR, |
81 | ERROR = EV_ERROR |
80 | }; |
82 | }; |
81 | |
83 | |
82 | enum |
84 | enum |
83 | { |
85 | { |
84 | AUTO = EVFLAG_AUTO, |
86 | AUTO = EVFLAG_AUTO, |
… | |
… | |
93 | PORT = EVBACKEND_PORT |
95 | PORT = EVBACKEND_PORT |
94 | }; |
96 | }; |
95 | |
97 | |
96 | enum |
98 | enum |
97 | { |
99 | { |
|
|
100 | #if EV_COMPAT3 |
98 | NONBLOCK = EVLOOP_NONBLOCK, |
101 | NONBLOCK = EVLOOP_NONBLOCK, |
99 | ONESHOT = EVLOOP_ONESHOT |
102 | ONESHOT = EVLOOP_ONESHOT, |
|
|
103 | #endif |
|
|
104 | NOWAIT = EVRUN_NOWAIT, |
|
|
105 | ONCE = EVRUN_ONCE |
100 | }; |
106 | }; |
101 | |
107 | |
102 | enum how_t |
108 | enum how_t |
103 | { |
109 | { |
104 | ONE = EVUNLOOP_ONE, |
110 | ONE = EVBREAK_ONE, |
105 | ALL = EVUNLOOP_ALL |
111 | ALL = EVBREAK_ALL |
106 | }; |
112 | }; |
107 | |
113 | |
108 | struct bad_loop |
114 | struct bad_loop |
109 | #if EV_USE_STDEXCEPT |
115 | #if EV_USE_STDEXCEPT |
110 | : std::runtime_error |
116 | : std::runtime_error |
… | |
… | |
167 | return this->EV_AX == EV_A; |
173 | return this->EV_AX == EV_A; |
168 | } |
174 | } |
169 | |
175 | |
170 | bool operator != (const EV_P) const throw () |
176 | bool operator != (const EV_P) const throw () |
171 | { |
177 | { |
172 | return (*this == EV_A); |
178 | return ! (*this == EV_A); |
173 | } |
179 | } |
174 | |
180 | |
175 | operator struct ev_loop * () const throw () |
181 | operator struct ev_loop * () const throw () |
176 | { |
182 | { |
177 | return EV_AX; |
183 | return EV_AX; |
… | |
… | |
186 | { |
192 | { |
187 | return EV_AX == ev_default_loop (0); |
193 | return EV_AX == ev_default_loop (0); |
188 | } |
194 | } |
189 | #endif |
195 | #endif |
190 | |
196 | |
|
|
197 | #if EV_COMPAT3 |
191 | void loop (int flags = 0) |
198 | void loop (int flags = 0) |
192 | { |
199 | { |
193 | ev_loop (EV_AX_ flags); |
200 | ev_run (EV_AX_ flags); |
194 | } |
201 | } |
195 | |
202 | |
196 | void unloop (how_t how = ONE) throw () |
203 | void unloop (how_t how = ONE) throw () |
197 | { |
204 | { |
198 | ev_unloop (EV_AX_ how); |
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) throw () |
|
|
215 | { |
|
|
216 | ev_break (EV_AX_ how); |
199 | } |
217 | } |
200 | |
218 | |
201 | void post_fork () throw () |
219 | void post_fork () throw () |
202 | { |
220 | { |
203 | #if EV_MULTIPLICITY |
|
|
204 | ev_loop_fork (EV_AX); |
221 | ev_loop_fork (EV_AX); |
205 | #else |
|
|
206 | ev_default_fork (); |
|
|
207 | #endif |
|
|
208 | } |
222 | } |
209 | |
223 | |
210 | unsigned int backend () const throw () |
224 | unsigned int backend () const throw () |
211 | { |
225 | { |
212 | return ev_backend (EV_AX); |
226 | return ev_backend (EV_AX); |
… | |
… | |
225 | void unref () throw () |
239 | void unref () throw () |
226 | { |
240 | { |
227 | ev_unref (EV_AX); |
241 | ev_unref (EV_AX); |
228 | } |
242 | } |
229 | |
243 | |
230 | #if EV_MINIMAL < 2 |
244 | #if EV_FEATURE_API |
231 | unsigned int count () const throw () |
245 | unsigned int iteration () const throw () |
232 | { |
246 | { |
233 | return ev_loop_count (EV_AX); |
247 | return ev_iteration (EV_AX); |
234 | } |
248 | } |
235 | |
249 | |
236 | unsigned int depth () const throw () |
250 | unsigned int depth () const throw () |
237 | { |
251 | { |
238 | return ev_loop_depth (EV_AX); |
252 | return ev_depth (EV_AX); |
239 | } |
253 | } |
240 | |
254 | |
241 | void set_io_collect_interval (tstamp interval) throw () |
255 | void set_io_collect_interval (tstamp interval) throw () |
242 | { |
256 | { |
243 | ev_set_io_collect_interval (EV_AX_ interval); |
257 | ev_set_io_collect_interval (EV_AX_ interval); |
… | |
… | |
270 | } |
284 | } |
271 | |
285 | |
272 | template<class K, void (K::*method)(int)> |
286 | template<class K, void (K::*method)(int)> |
273 | static void method_thunk (int revents, void *arg) |
287 | static void method_thunk (int revents, void *arg) |
274 | { |
288 | { |
275 | static_cast<K *>(arg)->*method |
289 | (static_cast<K *>(arg)->*method) |
276 | (revents); |
290 | (revents); |
277 | } |
291 | } |
278 | |
292 | |
279 | // no-argument method callback |
293 | // no-argument method callback |
280 | template<class K, void (K::*method)()> |
294 | template<class K, void (K::*method)()> |
… | |
… | |
284 | } |
298 | } |
285 | |
299 | |
286 | template<class K, void (K::*method)()> |
300 | template<class K, void (K::*method)()> |
287 | static void method_noargs_thunk (int revents, void *arg) |
301 | static void method_noargs_thunk (int revents, void *arg) |
288 | { |
302 | { |
289 | static_cast<K *>(arg)->*method |
303 | (static_cast<K *>(arg)->*method) |
290 | (); |
304 | (); |
291 | } |
305 | } |
292 | |
306 | |
293 | // simpler function callback |
307 | // simpler function callback |
294 | template<void (*cb)(int)> |
308 | template<void (*cb)(int)> |
… | |
… | |
373 | #else |
387 | #else |
374 | !ev_default_loop (flags) |
388 | !ev_default_loop (flags) |
375 | #endif |
389 | #endif |
376 | ) |
390 | ) |
377 | throw bad_loop (); |
391 | throw bad_loop (); |
378 | } |
|
|
379 | |
|
|
380 | ~default_loop () throw () |
|
|
381 | { |
|
|
382 | ev_default_destroy (); |
|
|
383 | } |
392 | } |
384 | |
393 | |
385 | private: |
394 | private: |
386 | default_loop (const default_loop &); |
395 | default_loop (const default_loop &); |
387 | default_loop &operator = (const default_loop &); |
396 | default_loop &operator = (const default_loop &); |
… | |
… | |
413 | struct base : ev_watcher |
422 | struct base : ev_watcher |
414 | { |
423 | { |
415 | #if EV_MULTIPLICITY |
424 | #if EV_MULTIPLICITY |
416 | EV_PX; |
425 | EV_PX; |
417 | |
426 | |
|
|
427 | // loop set |
418 | void set (EV_P) throw () |
428 | void set (EV_P) throw () |
419 | { |
429 | { |
420 | this->EV_A = EV_A; |
430 | this->EV_A = EV_A; |
421 | } |
431 | } |
422 | #endif |
432 | #endif |
… | |
… | |
478 | } |
488 | } |
479 | |
489 | |
480 | template<class K, void (K::*method)()> |
490 | template<class K, void (K::*method)()> |
481 | static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents) |
491 | static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents) |
482 | { |
492 | { |
483 | static_cast<K *>(w->data)->*method |
493 | (static_cast<K *>(w->data)->*method) |
484 | (); |
494 | (); |
485 | } |
495 | } |
486 | |
496 | |
487 | void operator ()(int events = EV_UNDEF) |
497 | void operator ()(int events = EV_UNDEF) |
488 | { |
498 | { |
… | |
… | |
501 | return ev_is_pending (static_cast<const ev_watcher *>(this)); |
511 | return ev_is_pending (static_cast<const ev_watcher *>(this)); |
502 | } |
512 | } |
503 | |
513 | |
504 | void feed_event (int revents) throw () |
514 | void feed_event (int revents) throw () |
505 | { |
515 | { |
506 | ev_feed_event (EV_A_ static_cast<const ev_watcher *>(this), revents); |
516 | ev_feed_event (EV_A_ static_cast<ev_watcher *>(this), revents); |
507 | } |
517 | } |
508 | }; |
518 | }; |
509 | |
519 | |
510 | inline tstamp now () throw () |
520 | inline tstamp now (EV_P) throw () |
511 | { |
521 | { |
512 | return ev_time (); |
522 | return ev_now (EV_A); |
513 | } |
523 | } |
514 | |
524 | |
515 | inline void delay (tstamp interval) throw () |
525 | inline void delay (tstamp interval) throw () |
516 | { |
526 | { |
517 | ev_sleep (interval); |
527 | ev_sleep (interval); |
… | |
… | |
540 | inline unsigned int embeddable_backends () throw () |
550 | inline unsigned int embeddable_backends () throw () |
541 | { |
551 | { |
542 | return ev_embeddable_backends (); |
552 | return ev_embeddable_backends (); |
543 | } |
553 | } |
544 | |
554 | |
545 | inline void set_allocator (void *(*cb)(void *ptr, long size)) throw () |
555 | inline void set_allocator (void *(*cb)(void *ptr, long size) throw ()) throw () |
546 | { |
556 | { |
547 | ev_set_allocator (cb); |
557 | ev_set_allocator (cb); |
548 | } |
558 | } |
549 | |
559 | |
550 | inline void set_syserr_cb (void (*cb)(const char *msg)) throw () |
560 | inline void set_syserr_cb (void (*cb)(const char *msg) throw ()) throw () |
551 | { |
561 | { |
552 | ev_set_syserr_cb (cb); |
562 | ev_set_syserr_cb (cb); |
553 | } |
563 | } |
554 | |
564 | |
555 | #if EV_MULTIPLICITY |
565 | #if EV_MULTIPLICITY |
… | |
… | |
563 | () throw () \ |
573 | () throw () \ |
564 | { \ |
574 | { \ |
565 | } |
575 | } |
566 | #endif |
576 | #endif |
567 | |
577 | |
568 | /* using a template here would require quite a bit more lines, |
578 | /* using a template here would require quite a few more lines, |
569 | * so a macro solution was chosen */ |
579 | * so a macro solution was chosen */ |
570 | #define EV_BEGIN_WATCHER(cppstem,cstem) \ |
580 | #define EV_BEGIN_WATCHER(cppstem,cstem) \ |
571 | \ |
581 | \ |
572 | struct cppstem : base<ev_ ## cstem, cppstem> \ |
582 | struct cppstem : base<ev_ ## cstem, cppstem> \ |
573 | { \ |
583 | { \ |
… | |
… | |
672 | ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); |
682 | ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); |
673 | } |
683 | } |
674 | EV_END_WATCHER (periodic, periodic) |
684 | EV_END_WATCHER (periodic, periodic) |
675 | #endif |
685 | #endif |
676 | |
686 | |
|
|
687 | #if EV_SIGNAL_ENABLE |
677 | EV_BEGIN_WATCHER (sig, signal) |
688 | EV_BEGIN_WATCHER (sig, signal) |
678 | void set (int signum) throw () |
689 | void set (int signum) throw () |
679 | { |
690 | { |
680 | int active = is_active (); |
691 | int active = is_active (); |
681 | if (active) stop (); |
692 | if (active) stop (); |
… | |
… | |
687 | { |
698 | { |
688 | set (signum); |
699 | set (signum); |
689 | start (); |
700 | start (); |
690 | } |
701 | } |
691 | EV_END_WATCHER (sig, signal) |
702 | EV_END_WATCHER (sig, signal) |
|
|
703 | #endif |
692 | |
704 | |
|
|
705 | #if EV_CHILD_ENABLE |
693 | EV_BEGIN_WATCHER (child, child) |
706 | EV_BEGIN_WATCHER (child, child) |
694 | void set (int pid, int trace = 0) throw () |
707 | void set (int pid, int trace = 0) throw () |
695 | { |
708 | { |
696 | int active = is_active (); |
709 | int active = is_active (); |
697 | if (active) stop (); |
710 | if (active) stop (); |
… | |
… | |
703 | { |
716 | { |
704 | set (pid, trace); |
717 | set (pid, trace); |
705 | start (); |
718 | start (); |
706 | } |
719 | } |
707 | EV_END_WATCHER (child, child) |
720 | EV_END_WATCHER (child, child) |
|
|
721 | #endif |
708 | |
722 | |
709 | #if EV_STAT_ENABLE |
723 | #if EV_STAT_ENABLE |
710 | EV_BEGIN_WATCHER (stat, stat) |
724 | EV_BEGIN_WATCHER (stat, stat) |
711 | void set (const char *path, ev_tstamp interval = 0.) throw () |
725 | void set (const char *path, ev_tstamp interval = 0.) throw () |
712 | { |
726 | { |
… | |
… | |
728 | ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); |
742 | ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); |
729 | } |
743 | } |
730 | EV_END_WATCHER (stat, stat) |
744 | EV_END_WATCHER (stat, stat) |
731 | #endif |
745 | #endif |
732 | |
746 | |
733 | #if EV_IDLE_ENABLE |
747 | #if EV_IDLE_ENABLE |
734 | EV_BEGIN_WATCHER (idle, idle) |
748 | EV_BEGIN_WATCHER (idle, idle) |
735 | void set () throw () { } |
749 | void set () throw () { } |
736 | EV_END_WATCHER (idle, idle) |
750 | EV_END_WATCHER (idle, idle) |
737 | #endif |
751 | #endif |
738 | |
752 | |
|
|
753 | #if EV_PREPARE_ENABLE |
739 | EV_BEGIN_WATCHER (prepare, prepare) |
754 | EV_BEGIN_WATCHER (prepare, prepare) |
740 | void set () throw () { } |
755 | void set () throw () { } |
741 | EV_END_WATCHER (prepare, prepare) |
756 | EV_END_WATCHER (prepare, prepare) |
|
|
757 | #endif |
742 | |
758 | |
|
|
759 | #if EV_CHECK_ENABLE |
743 | EV_BEGIN_WATCHER (check, check) |
760 | EV_BEGIN_WATCHER (check, check) |
744 | void set () throw () { } |
761 | void set () throw () { } |
745 | EV_END_WATCHER (check, check) |
762 | EV_END_WATCHER (check, check) |
|
|
763 | #endif |
746 | |
764 | |
747 | #if EV_EMBED_ENABLE |
765 | #if EV_EMBED_ENABLE |
748 | EV_BEGIN_WATCHER (embed, embed) |
766 | EV_BEGIN_WATCHER (embed, embed) |
749 | void set (struct ev_loop *embedded_loop) throw () |
767 | void set_embed (struct ev_loop *embedded_loop) throw () |
750 | { |
768 | { |
751 | int active = is_active (); |
769 | int active = is_active (); |
752 | if (active) stop (); |
770 | if (active) stop (); |
753 | ev_embed_set (static_cast<ev_embed *>(this), embedded_loop); |
771 | ev_embed_set (static_cast<ev_embed *>(this), embedded_loop); |
754 | if (active) start (); |
772 | if (active) start (); |
… | |
… | |
773 | EV_END_WATCHER (fork, fork) |
791 | EV_END_WATCHER (fork, fork) |
774 | #endif |
792 | #endif |
775 | |
793 | |
776 | #if EV_ASYNC_ENABLE |
794 | #if EV_ASYNC_ENABLE |
777 | EV_BEGIN_WATCHER (async, async) |
795 | EV_BEGIN_WATCHER (async, async) |
778 | void set () throw () { } |
|
|
779 | |
|
|
780 | void send () throw () |
796 | void send () throw () |
781 | { |
797 | { |
782 | ev_async_send (EV_A_ static_cast<ev_async *>(this)); |
798 | ev_async_send (EV_A_ static_cast<ev_async *>(this)); |
783 | } |
799 | } |
784 | |
800 | |