1 | /* |
1 | /* |
2 | * libev native API header |
2 | * libev native API header |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 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, |
… | |
… | |
39 | |
39 | |
40 | #ifndef EV_H_ |
40 | #ifndef EV_H_ |
41 | #define EV_H_ |
41 | #define EV_H_ |
42 | |
42 | |
43 | #ifdef __cplusplus |
43 | #ifdef __cplusplus |
|
|
44 | # define EV_CPP(x) x |
|
|
45 | #else |
|
|
46 | # define EV_CPP(x) |
|
|
47 | #endif |
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|
48 | |
44 | extern "C" { |
49 | EV_CPP(extern "C" {) |
45 | #endif |
|
|
46 | |
50 | |
47 | /*****************************************************************************/ |
51 | /*****************************************************************************/ |
48 | |
52 | |
49 | /* pre-4.0 compatibility */ |
53 | /* pre-4.0 compatibility */ |
50 | #ifndef EV_COMPAT3 |
54 | #ifndef EV_COMPAT3 |
51 | # define EV_COMPAT3 1 |
55 | # define EV_COMPAT3 1 |
52 | #endif |
56 | #endif |
53 | |
57 | |
54 | #ifndef EV_FEATURES |
58 | #ifndef EV_FEATURES |
|
|
59 | # if defined __OPTIMIZE_SIZE__ |
|
|
60 | # define EV_FEATURES 0x7c |
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|
61 | # else |
55 | # define EV_FEATURES 0x7f |
62 | # define EV_FEATURES 0x7f |
|
|
63 | # endif |
56 | #endif |
64 | #endif |
57 | |
65 | |
58 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
66 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
59 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
67 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
60 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
68 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
… | |
… | |
97 | |
105 | |
98 | #ifndef EV_FORK_ENABLE |
106 | #ifndef EV_FORK_ENABLE |
99 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
107 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
100 | #endif |
108 | #endif |
101 | |
109 | |
|
|
110 | #ifndef EV_CLEANUP_ENABLE |
|
|
111 | # define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS |
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|
112 | #endif |
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|
113 | |
102 | #ifndef EV_SIGNAL_ENABLE |
114 | #ifndef EV_SIGNAL_ENABLE |
103 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
115 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
104 | #endif |
116 | #endif |
105 | |
117 | |
106 | #ifndef EV_CHILD_ENABLE |
118 | #ifndef EV_CHILD_ENABLE |
… | |
… | |
148 | #endif |
160 | #endif |
149 | |
161 | |
150 | /* support multiple event loops? */ |
162 | /* support multiple event loops? */ |
151 | #if EV_MULTIPLICITY |
163 | #if EV_MULTIPLICITY |
152 | struct ev_loop; |
164 | struct ev_loop; |
153 | # define EV_P struct ev_loop *loop |
165 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
154 | # define EV_P_ EV_P, |
166 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
155 | # define EV_A loop |
167 | # define EV_A loop /* a loop as sole argument to a function call */ |
156 | # define EV_A_ EV_A, |
168 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
157 | # define EV_DEFAULT_UC ev_default_loop_uc () |
169 | # define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */ |
158 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
170 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
159 | # define EV_DEFAULT ev_default_loop (0) |
171 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
160 | # define EV_DEFAULT_ EV_DEFAULT, |
172 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
161 | #else |
173 | #else |
162 | # define EV_P void |
174 | # define EV_P void |
163 | # define EV_P_ |
175 | # define EV_P_ |
164 | # define EV_A |
176 | # define EV_A |
165 | # define EV_A_ |
177 | # define EV_A_ |
… | |
… | |
168 | # define EV_DEFAULT_UC |
180 | # define EV_DEFAULT_UC |
169 | # define EV_DEFAULT_UC_ |
181 | # define EV_DEFAULT_UC_ |
170 | # undef EV_EMBED_ENABLE |
182 | # undef EV_EMBED_ENABLE |
171 | #endif |
183 | #endif |
172 | |
184 | |
|
|
185 | /* EV_INLINE is used for functions in header files */ |
173 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
186 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
174 | # define EV_INLINE static inline |
187 | # define EV_INLINE static inline |
175 | #else |
188 | #else |
176 | # define EV_INLINE static |
189 | # define EV_INLINE static |
177 | #endif |
190 | #endif |
178 | |
191 | |
|
|
192 | #ifdef EV_API_STATIC |
|
|
193 | # define EV_API_DECL static |
|
|
194 | #else |
|
|
195 | # define EV_API_DECL extern |
|
|
196 | #endif |
|
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197 | |
|
|
198 | /* EV_PROTOTYPES can be used to switch of prototype declarations */ |
179 | #ifndef EV_PROTOTYPES |
199 | #ifndef EV_PROTOTYPES |
180 | # define EV_PROTOTYPES 1 |
200 | # define EV_PROTOTYPES 1 |
181 | #endif |
201 | #endif |
182 | |
202 | |
183 | /*****************************************************************************/ |
203 | /*****************************************************************************/ |
184 | |
204 | |
185 | #define EV_VERSION_MAJOR 4 |
205 | #define EV_VERSION_MAJOR 4 |
186 | #define EV_VERSION_MINOR 0 |
206 | #define EV_VERSION_MINOR 11 |
187 | |
207 | |
188 | /* eventmask, revents, events... */ |
208 | /* eventmask, revents, events... */ |
189 | enum { |
209 | enum { |
190 | EV_UNDEF = -1, /* guaranteed to be invalid */ |
210 | EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */ |
191 | EV_NONE = 0x00, /* no events */ |
211 | EV_NONE = 0x00, /* no events */ |
192 | EV_READ = 0x01, /* ev_io detected read will not block */ |
212 | EV_READ = 0x01, /* ev_io detected read will not block */ |
193 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
213 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
194 | EV__IOFDSET = 0x80, /* internal use only */ |
214 | EV__IOFDSET = 0x80, /* internal use only */ |
195 | EV_IO = EV_READ, /* alias for type-detection */ |
215 | EV_IO = EV_READ, /* alias for type-detection */ |
196 | EV_TIMER = 0x00000100, /* timer timed out */ |
216 | EV_TIMER = 0x00000100, /* timer timed out */ |
|
|
217 | #if EV_COMPAT3 |
197 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
218 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
|
|
219 | #endif |
198 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
220 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
199 | EV_SIGNAL = 0x00000400, /* signal was received */ |
221 | EV_SIGNAL = 0x00000400, /* signal was received */ |
200 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
222 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
201 | EV_STAT = 0x00001000, /* stat data changed */ |
223 | EV_STAT = 0x00001000, /* stat data changed */ |
202 | EV_IDLE = 0x00002000, /* event loop is idling */ |
224 | EV_IDLE = 0x00002000, /* event loop is idling */ |
203 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
225 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
204 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
226 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
205 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
227 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
206 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
228 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
|
|
229 | EV_CLEANUP = 0x00040000, /* event loop resumed in child */ |
207 | EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
230 | EV_ASYNC = 0x00080000, /* async intra-loop signal */ |
208 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
231 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
209 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
232 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
210 | }; |
233 | }; |
211 | |
234 | |
212 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
235 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
… | |
… | |
381 | EV_WATCHER (ev_check) |
404 | EV_WATCHER (ev_check) |
382 | } ev_check; |
405 | } ev_check; |
383 | |
406 | |
384 | #if EV_FORK_ENABLE |
407 | #if EV_FORK_ENABLE |
385 | /* the callback gets invoked before check in the child process when a fork was detected */ |
408 | /* the callback gets invoked before check in the child process when a fork was detected */ |
|
|
409 | /* revent EV_FORK */ |
386 | typedef struct ev_fork |
410 | typedef struct ev_fork |
387 | { |
411 | { |
388 | EV_WATCHER (ev_fork) |
412 | EV_WATCHER (ev_fork) |
389 | } ev_fork; |
413 | } ev_fork; |
|
|
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_CLEANUP_ENABLE |
|
|
417 | /* is invoked just before the loop gets destroyed */ |
|
|
418 | /* revent EV_CLEANUP */ |
|
|
419 | typedef struct ev_cleanup |
|
|
420 | { |
|
|
421 | EV_WATCHER (ev_cleanup) |
|
|
422 | } ev_cleanup; |
390 | #endif |
423 | #endif |
391 | |
424 | |
392 | #if EV_EMBED_ENABLE |
425 | #if EV_EMBED_ENABLE |
393 | /* used to embed an event loop inside another */ |
426 | /* used to embed an event loop inside another */ |
394 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
427 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
… | |
… | |
402 | ev_check check; /* unused */ |
435 | ev_check check; /* unused */ |
403 | ev_timer timer; /* unused */ |
436 | ev_timer timer; /* unused */ |
404 | ev_periodic periodic; /* unused */ |
437 | ev_periodic periodic; /* unused */ |
405 | ev_idle idle; /* unused */ |
438 | ev_idle idle; /* unused */ |
406 | ev_fork fork; /* private */ |
439 | ev_fork fork; /* private */ |
|
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440 | #if EV_CLEANUP_ENABLE |
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441 | ev_cleanup cleanup; /* unused */ |
|
|
442 | #endif |
407 | } ev_embed; |
443 | } ev_embed; |
408 | #endif |
444 | #endif |
409 | |
445 | |
410 | #if EV_ASYNC_ENABLE |
446 | #if EV_ASYNC_ENABLE |
411 | /* invoked when somebody calls ev_async_send on the watcher */ |
447 | /* invoked when somebody calls ev_async_send on the watcher */ |
… | |
… | |
439 | #endif |
475 | #endif |
440 | struct ev_prepare prepare; |
476 | struct ev_prepare prepare; |
441 | struct ev_check check; |
477 | struct ev_check check; |
442 | #if EV_FORK_ENABLE |
478 | #if EV_FORK_ENABLE |
443 | struct ev_fork fork; |
479 | struct ev_fork fork; |
|
|
480 | #endif |
|
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481 | #if EV_CLEANUP_ENABLE |
|
|
482 | struct ev_cleanup cleanup; |
444 | #endif |
483 | #endif |
445 | #if EV_EMBED_ENABLE |
484 | #if EV_EMBED_ENABLE |
446 | struct ev_embed embed; |
485 | struct ev_embed embed; |
447 | #endif |
486 | #endif |
448 | #if EV_ASYNC_ENABLE |
487 | #if EV_ASYNC_ENABLE |
… | |
… | |
460 | /* debugging/feature disable */ |
499 | /* debugging/feature disable */ |
461 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
500 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
462 | #if EV_COMPAT3 |
501 | #if EV_COMPAT3 |
463 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
502 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
464 | #endif |
503 | #endif |
465 | EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ |
504 | EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */ |
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|
505 | EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */ |
466 | }; |
506 | }; |
467 | |
507 | |
468 | /* method bits to be ored together */ |
508 | /* method bits to be ored together */ |
469 | enum { |
509 | enum { |
470 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
510 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
471 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
511 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
472 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
512 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
473 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
513 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
474 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
514 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
475 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
515 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
476 | EVBACKEND_ALL = 0x0000003FU |
516 | EVBACKEND_ALL = 0x0000003FU, /* all known backends */ |
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517 | EVBACKEND_MASK = 0x0000FFFFU /* all future backends */ |
477 | }; |
518 | }; |
478 | |
519 | |
479 | #if EV_PROTOTYPES |
520 | #if EV_PROTOTYPES |
480 | int ev_version_major (void); |
521 | EV_API_DECL int ev_version_major (void); |
481 | int ev_version_minor (void); |
522 | EV_API_DECL int ev_version_minor (void); |
482 | |
523 | |
483 | unsigned int ev_supported_backends (void); |
524 | EV_API_DECL unsigned int ev_supported_backends (void); |
484 | unsigned int ev_recommended_backends (void); |
525 | EV_API_DECL unsigned int ev_recommended_backends (void); |
485 | unsigned int ev_embeddable_backends (void); |
526 | EV_API_DECL unsigned int ev_embeddable_backends (void); |
486 | |
527 | |
487 | ev_tstamp ev_time (void); |
528 | EV_API_DECL ev_tstamp ev_time (void); |
488 | void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
529 | EV_API_DECL void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
489 | |
530 | |
490 | /* Sets the allocation function to use, works like realloc. |
531 | /* Sets the allocation function to use, works like realloc. |
491 | * It is used to allocate and free memory. |
532 | * It is used to allocate and free memory. |
492 | * If it returns zero when memory needs to be allocated, the library might abort |
533 | * If it returns zero when memory needs to be allocated, the library might abort |
493 | * or take some potentially destructive action. |
534 | * or take some potentially destructive action. |
494 | * The default is your system realloc function. |
535 | * The default is your system realloc function. |
495 | */ |
536 | */ |
496 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
537 | EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
497 | |
538 | |
498 | /* set the callback function to call on a |
539 | /* set the callback function to call on a |
499 | * retryable syscall error |
540 | * retryable syscall error |
500 | * (such as failed select, poll, epoll_wait) |
541 | * (such as failed select, poll, epoll_wait) |
501 | */ |
542 | */ |
502 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
543 | EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg)); |
503 | |
544 | |
504 | #if EV_MULTIPLICITY |
545 | #if EV_MULTIPLICITY |
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546 | |
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547 | /* the default loop is the only one that handles signals and child watchers */ |
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548 | /* you can call this as often as you like */ |
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549 | EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)); |
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550 | |
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551 | #ifdef EV_API_STATIC |
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552 | EV_API_DECL struct ev_loop *ev_default_loop_ptr; |
|
|
553 | #endif |
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|
554 | |
505 | EV_INLINE struct ev_loop * |
555 | EV_INLINE struct ev_loop * |
506 | ev_default_loop_uc (void) |
556 | ev_default_loop_uc_ (void) |
507 | { |
557 | { |
508 | extern struct ev_loop *ev_default_loop_ptr; |
558 | extern struct ev_loop *ev_default_loop_ptr; |
509 | |
559 | |
510 | return ev_default_loop_ptr; |
560 | return ev_default_loop_ptr; |
511 | } |
561 | } |
512 | |
562 | |
513 | /* the default loop is the only one that handles signals and child watchers */ |
563 | EV_INLINE int |
514 | /* you can call this as often as you like */ |
564 | ev_is_default_loop (EV_P) |
515 | EV_INLINE struct ev_loop * |
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516 | ev_default_loop (unsigned int flags) |
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517 | { |
565 | { |
518 | struct ev_loop *loop = ev_default_loop_uc (); |
566 | return EV_A == EV_DEFAULT_UC; |
519 | |
|
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520 | if (!loop) |
|
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521 | { |
|
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522 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
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523 | |
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524 | loop = ev_default_loop_init (flags); |
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525 | } |
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526 | |
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527 | return loop; |
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528 | } |
567 | } |
529 | |
568 | |
530 | /* create and destroy alternative loops that don't handle signals */ |
569 | /* create and destroy alternative loops that don't handle signals */ |
531 | struct ev_loop *ev_loop_new (unsigned int flags); |
570 | EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); |
532 | void ev_loop_destroy (EV_P); |
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533 | void ev_loop_fork (EV_P); |
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534 | |
571 | |
535 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
572 | EV_API_DECL ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
536 | |
573 | |
537 | #else |
574 | #else |
538 | |
575 | |
539 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
576 | EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */ |
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577 | |
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578 | EV_API_DECL ev_tstamp ev_rt_now; |
540 | |
579 | |
541 | EV_INLINE ev_tstamp |
580 | EV_INLINE ev_tstamp |
542 | ev_now (void) |
581 | ev_now (void) |
543 | { |
582 | { |
544 | extern ev_tstamp ev_rt_now; |
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545 | |
|
|
546 | return ev_rt_now; |
583 | return ev_rt_now; |
547 | } |
584 | } |
|
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585 | |
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|
586 | /* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ |
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587 | EV_INLINE int |
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588 | ev_is_default_loop (void) |
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589 | { |
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590 | return 1; |
|
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591 | } |
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592 | |
548 | #endif /* multiplicity */ |
593 | #endif /* multiplicity */ |
549 | |
594 | |
550 | EV_INLINE int |
595 | /* destroy event loops, also works for the default loop */ |
551 | ev_is_default_loop (EV_P) |
596 | EV_API_DECL void ev_loop_destroy (EV_P); |
552 | { |
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553 | #if EV_MULTIPLICITY |
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554 | extern struct ev_loop *ev_default_loop_ptr; |
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555 | |
597 | |
556 | return !!(EV_A == ev_default_loop_ptr); |
|
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557 | #else |
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558 | return 1; |
|
|
559 | #endif |
|
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560 | } |
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561 | |
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562 | void ev_default_destroy (void); /* destroy the default loop */ |
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563 | /* this needs to be called after fork, to duplicate the default loop */ |
598 | /* this needs to be called after fork, to duplicate the loop */ |
564 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
599 | /* when you want to re-use it in the child */ |
565 | /* you can call it in either the parent or the child */ |
600 | /* you can call it in either the parent or the child */ |
566 | /* you can actually call it at any time, anywhere :) */ |
601 | /* you can actually call it at any time, anywhere :) */ |
567 | void ev_default_fork (void); |
602 | EV_API_DECL void ev_loop_fork (EV_P); |
568 | |
603 | |
569 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
604 | EV_API_DECL unsigned int ev_backend (EV_P); /* backend in use by loop */ |
570 | |
605 | |
571 | void ev_now_update (EV_P); /* update event loop time */ |
606 | EV_API_DECL void ev_now_update (EV_P); /* update event loop time */ |
572 | |
607 | |
573 | #if EV_WALK_ENABLE |
608 | #if EV_WALK_ENABLE |
574 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
609 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
575 | /* callback on every such watcher. The callback might stop the watcher, */ |
610 | /* callback on every such watcher. The callback might stop the watcher, */ |
576 | /* but do nothing else with the loop */ |
611 | /* but do nothing else with the loop */ |
577 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
612 | EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
578 | #endif |
613 | #endif |
579 | |
614 | |
580 | #endif /* prototypes */ |
615 | #endif /* prototypes */ |
581 | |
616 | |
582 | /* ev_run flags values */ |
617 | /* ev_run flags values */ |
… | |
… | |
591 | EVBREAK_ONE = 1, /* unloop once */ |
626 | EVBREAK_ONE = 1, /* unloop once */ |
592 | EVBREAK_ALL = 2 /* unloop all loops */ |
627 | EVBREAK_ALL = 2 /* unloop all loops */ |
593 | }; |
628 | }; |
594 | |
629 | |
595 | #if EV_PROTOTYPES |
630 | #if EV_PROTOTYPES |
596 | void ev_run (EV_P_ int flags); |
631 | EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0)); |
597 | void ev_break (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
632 | EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ |
598 | |
633 | |
599 | /* |
634 | /* |
600 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
635 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
601 | * keeps one reference. if you have a long-running watcher you never unregister that |
636 | * keeps one reference. if you have a long-running watcher you never unregister that |
602 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
637 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
603 | */ |
638 | */ |
604 | void ev_ref (EV_P); |
639 | EV_API_DECL void ev_ref (EV_P); |
605 | void ev_unref (EV_P); |
640 | EV_API_DECL void ev_unref (EV_P); |
606 | |
641 | |
607 | /* |
642 | /* |
608 | * convenience function, wait for a single event, without registering an event watcher |
643 | * convenience function, wait for a single event, without registering an event watcher |
609 | * if timeout is < 0, do wait indefinitely |
644 | * if timeout is < 0, do wait indefinitely |
610 | */ |
645 | */ |
611 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
646 | EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
612 | |
647 | |
613 | # if EV_FEATURE_API |
648 | # if EV_FEATURE_API |
614 | unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
649 | EV_API_DECL unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
615 | unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
650 | EV_API_DECL unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
616 | void ev_verify (EV_P); /* abort if loop data corrupted */ |
651 | EV_API_DECL void ev_verify (EV_P); /* abort if loop data corrupted */ |
617 | |
652 | |
618 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
653 | EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
619 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
654 | EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
620 | |
655 | |
621 | /* advanced stuff for threading etc. support, see docs */ |
656 | /* advanced stuff for threading etc. support, see docs */ |
622 | void ev_set_userdata (EV_P_ void *data); |
657 | EV_API_DECL void ev_set_userdata (EV_P_ void *data); |
623 | void *ev_userdata (EV_P); |
658 | EV_API_DECL void *ev_userdata (EV_P); |
624 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
659 | EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
625 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
660 | EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
626 | |
661 | |
627 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
662 | EV_API_DECL unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
628 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
663 | EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
629 | |
664 | |
630 | /* |
665 | /* |
631 | * stop/start the timer handling. |
666 | * stop/start the timer handling. |
632 | */ |
667 | */ |
633 | void ev_suspend (EV_P); |
668 | EV_API_DECL void ev_suspend (EV_P); |
634 | void ev_resume (EV_P); |
669 | EV_API_DECL void ev_resume (EV_P); |
635 | #endif |
670 | #endif |
636 | |
671 | |
637 | #endif |
672 | #endif |
638 | |
673 | |
639 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
674 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
… | |
… | |
654 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
689 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
655 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
690 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
656 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
691 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
657 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
692 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
658 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
693 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
|
|
694 | #define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */ |
659 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
695 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
660 | |
696 | |
661 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
697 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
662 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
698 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
663 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
699 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
… | |
… | |
667 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
703 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
668 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
704 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
669 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
705 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
670 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
706 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
671 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
707 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
|
|
708 | #define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0) |
672 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
709 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
673 | |
710 | |
674 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
711 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
675 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
712 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
676 | |
713 | |
… | |
… | |
692 | |
729 | |
693 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
730 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
694 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
731 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
695 | #if EV_PROTOTYPES |
732 | #if EV_PROTOTYPES |
696 | |
733 | |
697 | /* feeds an event into a watcher as if the event actually occured */ |
734 | /* feeds an event into a watcher as if the event actually occurred */ |
698 | /* accepts any ev_watcher type */ |
735 | /* accepts any ev_watcher type */ |
699 | void ev_feed_event (EV_P_ void *w, int revents); |
736 | EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents); |
700 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
737 | EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents); |
701 | #if EV_SIGNAL_ENABLE |
738 | #if EV_SIGNAL_ENABLE |
|
|
739 | EV_API_DECL void ev_feed_signal (int signum); |
702 | void ev_feed_signal_event (EV_P_ int signum); |
740 | EV_API_DECL void ev_feed_signal_event (EV_P_ int signum); |
703 | #endif |
741 | #endif |
704 | void ev_invoke (EV_P_ void *w, int revents); |
742 | EV_API_DECL void ev_invoke (EV_P_ void *w, int revents); |
705 | int ev_clear_pending (EV_P_ void *w); |
743 | EV_API_DECL int ev_clear_pending (EV_P_ void *w); |
706 | |
744 | |
707 | void ev_io_start (EV_P_ ev_io *w); |
745 | EV_API_DECL void ev_io_start (EV_P_ ev_io *w); |
708 | void ev_io_stop (EV_P_ ev_io *w); |
746 | EV_API_DECL void ev_io_stop (EV_P_ ev_io *w); |
709 | |
747 | |
710 | void ev_timer_start (EV_P_ ev_timer *w); |
748 | EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w); |
711 | void ev_timer_stop (EV_P_ ev_timer *w); |
749 | EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w); |
712 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
750 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
713 | void ev_timer_again (EV_P_ ev_timer *w); |
751 | EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w); |
714 | /* return remaining time */ |
752 | /* return remaining time */ |
715 | ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
753 | EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
716 | |
754 | |
717 | #if EV_PERIODIC_ENABLE |
755 | #if EV_PERIODIC_ENABLE |
718 | void ev_periodic_start (EV_P_ ev_periodic *w); |
756 | EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w); |
719 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
757 | EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w); |
720 | void ev_periodic_again (EV_P_ ev_periodic *w); |
758 | EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w); |
721 | #endif |
759 | #endif |
722 | |
760 | |
723 | /* only supported in the default loop */ |
761 | /* only supported in the default loop */ |
724 | #if EV_SIGNAL_ENABLE |
762 | #if EV_SIGNAL_ENABLE |
725 | void ev_signal_start (EV_P_ ev_signal *w); |
763 | EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w); |
726 | void ev_signal_stop (EV_P_ ev_signal *w); |
764 | EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w); |
727 | #endif |
765 | #endif |
728 | |
766 | |
729 | /* only supported in the default loop */ |
767 | /* only supported in the default loop */ |
730 | # if EV_CHILD_ENABLE |
768 | # if EV_CHILD_ENABLE |
731 | void ev_child_start (EV_P_ ev_child *w); |
769 | EV_API_DECL void ev_child_start (EV_P_ ev_child *w); |
732 | void ev_child_stop (EV_P_ ev_child *w); |
770 | EV_API_DECL void ev_child_stop (EV_P_ ev_child *w); |
733 | # endif |
771 | # endif |
734 | |
772 | |
735 | # if EV_STAT_ENABLE |
773 | # if EV_STAT_ENABLE |
736 | void ev_stat_start (EV_P_ ev_stat *w); |
774 | EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w); |
737 | void ev_stat_stop (EV_P_ ev_stat *w); |
775 | EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w); |
738 | void ev_stat_stat (EV_P_ ev_stat *w); |
776 | EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w); |
739 | # endif |
777 | # endif |
740 | |
778 | |
741 | # if EV_IDLE_ENABLE |
779 | # if EV_IDLE_ENABLE |
742 | void ev_idle_start (EV_P_ ev_idle *w); |
780 | EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w); |
743 | void ev_idle_stop (EV_P_ ev_idle *w); |
781 | EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w); |
744 | # endif |
782 | # endif |
745 | |
783 | |
746 | #if EV_PREPARE_ENABLE |
784 | #if EV_PREPARE_ENABLE |
747 | void ev_prepare_start (EV_P_ ev_prepare *w); |
785 | EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w); |
748 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
786 | EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w); |
749 | #endif |
787 | #endif |
750 | |
788 | |
751 | #if EV_CHECK_ENABLE |
789 | #if EV_CHECK_ENABLE |
752 | void ev_check_start (EV_P_ ev_check *w); |
790 | EV_API_DECL void ev_check_start (EV_P_ ev_check *w); |
753 | void ev_check_stop (EV_P_ ev_check *w); |
791 | EV_API_DECL void ev_check_stop (EV_P_ ev_check *w); |
754 | #endif |
792 | #endif |
755 | |
793 | |
756 | # if EV_FORK_ENABLE |
794 | # if EV_FORK_ENABLE |
757 | void ev_fork_start (EV_P_ ev_fork *w); |
795 | EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w); |
758 | void ev_fork_stop (EV_P_ ev_fork *w); |
796 | EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w); |
|
|
797 | # endif |
|
|
798 | |
|
|
799 | # if EV_CLEANUP_ENABLE |
|
|
800 | EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w); |
|
|
801 | EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w); |
759 | # endif |
802 | # endif |
760 | |
803 | |
761 | # if EV_EMBED_ENABLE |
804 | # if EV_EMBED_ENABLE |
762 | /* only supported when loop to be embedded is in fact embeddable */ |
805 | /* only supported when loop to be embedded is in fact embeddable */ |
763 | void ev_embed_start (EV_P_ ev_embed *w); |
806 | EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w); |
764 | void ev_embed_stop (EV_P_ ev_embed *w); |
807 | EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w); |
765 | void ev_embed_sweep (EV_P_ ev_embed *w); |
808 | EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w); |
766 | # endif |
809 | # endif |
767 | |
810 | |
768 | # if EV_ASYNC_ENABLE |
811 | # if EV_ASYNC_ENABLE |
769 | void ev_async_start (EV_P_ ev_async *w); |
812 | EV_API_DECL void ev_async_start (EV_P_ ev_async *w); |
770 | void ev_async_stop (EV_P_ ev_async *w); |
813 | EV_API_DECL void ev_async_stop (EV_P_ ev_async *w); |
771 | void ev_async_send (EV_P_ ev_async *w); |
814 | EV_API_DECL void ev_async_send (EV_P_ ev_async *w); |
772 | # endif |
815 | # endif |
773 | |
816 | |
774 | #if EV_COMPAT3 |
817 | #if EV_COMPAT3 |
775 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
818 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
776 | #define EVLOOP_ONESHOT EVRUN_ONCE |
819 | #define EVLOOP_ONESHOT EVRUN_ONCE |
… | |
… | |
778 | #define EVUNLOOP_ONE EVBREAK_ONE |
821 | #define EVUNLOOP_ONE EVBREAK_ONE |
779 | #define EVUNLOOP_ALL EVBREAK_ALL |
822 | #define EVUNLOOP_ALL EVBREAK_ALL |
780 | #if EV_PROTOTYPES |
823 | #if EV_PROTOTYPES |
781 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
824 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
782 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
825 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
|
|
826 | EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } |
|
|
827 | EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } |
783 | #if EV_FEATURE_API |
828 | #if EV_FEATURE_API |
784 | EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } |
829 | EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); } |
785 | EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } |
830 | EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); } |
786 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
831 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
787 | #endif |
832 | #endif |
788 | #endif |
833 | #endif |
789 | #else |
834 | #else |
790 | typedef struct ev_loop ev_loop; |
835 | typedef struct ev_loop ev_loop; |
791 | #endif |
836 | #endif |
792 | |
837 | |
793 | #endif |
838 | #endif |
794 | |
839 | |
795 | #ifdef __cplusplus |
840 | EV_CPP(}) |
796 | } |
|
|
797 | #endif |
|
|
798 | |
841 | |
799 | #endif |
842 | #endif |
800 | |
843 | |