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 |
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|
44 | # define EV_CPP(x) x |
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45 | #else |
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|
46 | # define EV_CPP(x) |
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|
47 | #endif |
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48 | |
44 | extern "C" { |
49 | EV_CPP(extern "C" {) |
45 | #endif |
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|
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 |
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|
59 | # if defined __OPTIMIZE_SIZE__ |
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|
60 | # define EV_FEATURES 0x7c |
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|
61 | # else |
55 | # define EV_FEATURES 0x7f |
62 | # define EV_FEATURES 0x7f |
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|
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 | |
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|
110 | #ifndef EV_CLEANUP_ENABLE |
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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 |
… | |
… | |
145 | # include <sys/types.h> |
157 | # include <sys/types.h> |
146 | # endif |
158 | # endif |
147 | # include <sys/stat.h> |
159 | # include <sys/stat.h> |
148 | #endif |
160 | #endif |
149 | |
161 | |
150 | #ifdef __cplusplus |
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|
151 | # define EV_DEFARG(x) = x |
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|
152 | #else |
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153 | # define EV_DEFARG(x) |
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154 | #endif |
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155 | |
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156 | /* support multiple event loops? */ |
162 | /* support multiple event loops? */ |
157 | #if EV_MULTIPLICITY |
163 | #if EV_MULTIPLICITY |
158 | struct ev_loop; |
164 | struct ev_loop; |
159 | # define EV_P struct ev_loop *loop |
165 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
160 | # define EV_P_ EV_P, |
166 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
161 | # define EV_A loop |
167 | # define EV_A loop /* a loop as sole argument to a function call */ |
162 | # define EV_A_ EV_A, |
168 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
163 | # 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 */ |
164 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
170 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
165 | # define EV_DEFAULT ev_default_loop (0) |
171 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
166 | # define EV_DEFAULT_ EV_DEFAULT, |
172 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
167 | # define EV_PDEF EV_P EV_DEFARG (EV_DEFAULT_UC) |
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|
168 | #else |
173 | #else |
169 | # define EV_P void |
174 | # define EV_P void |
170 | # define EV_P_ |
175 | # define EV_P_ |
171 | # define EV_A |
176 | # define EV_A |
172 | # define EV_A_ |
177 | # define EV_A_ |
173 | # define EV_DEFAULT |
178 | # define EV_DEFAULT |
174 | # define EV_DEFAULT_ |
179 | # define EV_DEFAULT_ |
175 | # define EV_DEFAULT_UC |
180 | # define EV_DEFAULT_UC |
176 | # define EV_DEFAULT_UC_ |
181 | # define EV_DEFAULT_UC_ |
177 | # define EV_PDEF EV_P |
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|
178 | # undef EV_EMBED_ENABLE |
182 | # undef EV_EMBED_ENABLE |
179 | #endif |
183 | #endif |
180 | |
184 | |
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185 | /* EV_INLINE is used for functions in header files */ |
181 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
186 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
182 | # define EV_INLINE static inline |
187 | # define EV_INLINE static inline |
183 | #else |
188 | #else |
184 | # define EV_INLINE static |
189 | # define EV_INLINE static |
185 | #endif |
190 | #endif |
186 | |
191 | |
|
|
192 | #ifdef EV_API_STATIC |
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193 | # define EV_API_DECL static |
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194 | #else |
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195 | # define EV_API_DECL extern |
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196 | #endif |
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197 | |
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198 | /* EV_PROTOTYPES can be used to switch of prototype declarations */ |
187 | #ifndef EV_PROTOTYPES |
199 | #ifndef EV_PROTOTYPES |
188 | # define EV_PROTOTYPES 1 |
200 | # define EV_PROTOTYPES 1 |
189 | #endif |
201 | #endif |
190 | |
202 | |
191 | /*****************************************************************************/ |
203 | /*****************************************************************************/ |
192 | |
204 | |
193 | #define EV_VERSION_MAJOR 4 |
205 | #define EV_VERSION_MAJOR 4 |
194 | #define EV_VERSION_MINOR 0 |
206 | #define EV_VERSION_MINOR 11 |
195 | |
207 | |
196 | /* eventmask, revents, events... */ |
208 | /* eventmask, revents, events... */ |
197 | enum { |
209 | enum { |
198 | EV_UNDEF = -1, /* guaranteed to be invalid */ |
210 | EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */ |
199 | EV_NONE = 0x00, /* no events */ |
211 | EV_NONE = 0x00, /* no events */ |
200 | EV_READ = 0x01, /* ev_io detected read will not block */ |
212 | EV_READ = 0x01, /* ev_io detected read will not block */ |
201 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
213 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
202 | EV__IOFDSET = 0x80, /* internal use only */ |
214 | EV__IOFDSET = 0x80, /* internal use only */ |
203 | EV_IO = EV_READ, /* alias for type-detection */ |
215 | EV_IO = EV_READ, /* alias for type-detection */ |
… | |
… | |
212 | EV_IDLE = 0x00002000, /* event loop is idling */ |
224 | EV_IDLE = 0x00002000, /* event loop is idling */ |
213 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
225 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
214 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
226 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
215 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
227 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
216 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
228 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
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|
229 | EV_CLEANUP = 0x00040000, /* event loop resumed in child */ |
217 | EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
230 | EV_ASYNC = 0x00080000, /* async intra-loop signal */ |
218 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
231 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
219 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
232 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
220 | }; |
233 | }; |
221 | |
234 | |
222 | /* 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 */ |
… | |
… | |
391 | EV_WATCHER (ev_check) |
404 | EV_WATCHER (ev_check) |
392 | } ev_check; |
405 | } ev_check; |
393 | |
406 | |
394 | #if EV_FORK_ENABLE |
407 | #if EV_FORK_ENABLE |
395 | /* 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 */ |
396 | typedef struct ev_fork |
410 | typedef struct ev_fork |
397 | { |
411 | { |
398 | EV_WATCHER (ev_fork) |
412 | EV_WATCHER (ev_fork) |
399 | } ev_fork; |
413 | } ev_fork; |
|
|
414 | #endif |
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415 | |
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416 | #if EV_CLEANUP_ENABLE |
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417 | /* is invoked just before the loop gets destroyed */ |
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418 | /* revent EV_CLEANUP */ |
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419 | typedef struct ev_cleanup |
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420 | { |
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421 | EV_WATCHER (ev_cleanup) |
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422 | } ev_cleanup; |
400 | #endif |
423 | #endif |
401 | |
424 | |
402 | #if EV_EMBED_ENABLE |
425 | #if EV_EMBED_ENABLE |
403 | /* used to embed an event loop inside another */ |
426 | /* used to embed an event loop inside another */ |
404 | /* 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 */ |
… | |
… | |
412 | ev_check check; /* unused */ |
435 | ev_check check; /* unused */ |
413 | ev_timer timer; /* unused */ |
436 | ev_timer timer; /* unused */ |
414 | ev_periodic periodic; /* unused */ |
437 | ev_periodic periodic; /* unused */ |
415 | ev_idle idle; /* unused */ |
438 | ev_idle idle; /* unused */ |
416 | 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 */ |
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442 | #endif |
417 | } ev_embed; |
443 | } ev_embed; |
418 | #endif |
444 | #endif |
419 | |
445 | |
420 | #if EV_ASYNC_ENABLE |
446 | #if EV_ASYNC_ENABLE |
421 | /* invoked when somebody calls ev_async_send on the watcher */ |
447 | /* invoked when somebody calls ev_async_send on the watcher */ |
… | |
… | |
449 | #endif |
475 | #endif |
450 | struct ev_prepare prepare; |
476 | struct ev_prepare prepare; |
451 | struct ev_check check; |
477 | struct ev_check check; |
452 | #if EV_FORK_ENABLE |
478 | #if EV_FORK_ENABLE |
453 | struct ev_fork fork; |
479 | struct ev_fork fork; |
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480 | #endif |
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481 | #if EV_CLEANUP_ENABLE |
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482 | struct ev_cleanup cleanup; |
454 | #endif |
483 | #endif |
455 | #if EV_EMBED_ENABLE |
484 | #if EV_EMBED_ENABLE |
456 | struct ev_embed embed; |
485 | struct ev_embed embed; |
457 | #endif |
486 | #endif |
458 | #if EV_ASYNC_ENABLE |
487 | #if EV_ASYNC_ENABLE |
… | |
… | |
470 | /* debugging/feature disable */ |
499 | /* debugging/feature disable */ |
471 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
500 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
472 | #if EV_COMPAT3 |
501 | #if EV_COMPAT3 |
473 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
502 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
474 | #endif |
503 | #endif |
475 | 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 */ |
476 | }; |
506 | }; |
477 | |
507 | |
478 | /* method bits to be ored together */ |
508 | /* method bits to be ored together */ |
479 | enum { |
509 | enum { |
480 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
510 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
481 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
511 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
482 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
512 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
483 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
513 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
484 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
514 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
485 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
515 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
486 | EVBACKEND_ALL = 0x0000003FU |
516 | EVBACKEND_ALL = 0x0000003FU, /* all known backends */ |
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517 | EVBACKEND_MASK = 0x0000FFFFU /* all future backends */ |
487 | }; |
518 | }; |
488 | |
519 | |
489 | #if EV_PROTOTYPES |
520 | #if EV_PROTOTYPES |
490 | int ev_version_major (void); |
521 | EV_API_DECL int ev_version_major (void); |
491 | int ev_version_minor (void); |
522 | EV_API_DECL int ev_version_minor (void); |
492 | |
523 | |
493 | unsigned int ev_supported_backends (void); |
524 | EV_API_DECL unsigned int ev_supported_backends (void); |
494 | unsigned int ev_recommended_backends (void); |
525 | EV_API_DECL unsigned int ev_recommended_backends (void); |
495 | unsigned int ev_embeddable_backends (void); |
526 | EV_API_DECL unsigned int ev_embeddable_backends (void); |
496 | |
527 | |
497 | ev_tstamp ev_time (void); |
528 | EV_API_DECL ev_tstamp ev_time (void); |
498 | void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
529 | EV_API_DECL void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
499 | |
530 | |
500 | /* Sets the allocation function to use, works like realloc. |
531 | /* Sets the allocation function to use, works like realloc. |
501 | * It is used to allocate and free memory. |
532 | * It is used to allocate and free memory. |
502 | * 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 |
503 | * or take some potentially destructive action. |
534 | * or take some potentially destructive action. |
504 | * The default is your system realloc function. |
535 | * The default is your system realloc function. |
505 | */ |
536 | */ |
506 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
537 | EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
507 | |
538 | |
508 | /* set the callback function to call on a |
539 | /* set the callback function to call on a |
509 | * retryable syscall error |
540 | * retryable syscall error |
510 | * (such as failed select, poll, epoll_wait) |
541 | * (such as failed select, poll, epoll_wait) |
511 | */ |
542 | */ |
512 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
543 | EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg)); |
513 | |
544 | |
514 | #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; |
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553 | #endif |
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554 | |
515 | EV_INLINE struct ev_loop * |
555 | EV_INLINE struct ev_loop * |
516 | ev_default_loop_uc (void) |
556 | ev_default_loop_uc_ (void) |
517 | { |
557 | { |
518 | extern struct ev_loop *ev_default_loop_ptr; |
558 | extern struct ev_loop *ev_default_loop_ptr; |
519 | |
559 | |
520 | return ev_default_loop_ptr; |
560 | return ev_default_loop_ptr; |
521 | } |
561 | } |
522 | |
562 | |
523 | /* the default loop is the only one that handles signals and child watchers */ |
563 | EV_INLINE int |
524 | /* you can call this as often as you like */ |
564 | ev_is_default_loop (EV_P) |
525 | EV_INLINE struct ev_loop * |
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526 | ev_default_loop (unsigned int flags EV_DEFARG (0)) |
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527 | { |
565 | { |
528 | struct ev_loop *loop = ev_default_loop_uc (); |
566 | return EV_A == EV_DEFAULT_UC; |
529 | |
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530 | if (!loop) |
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531 | { |
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532 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
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533 | |
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534 | loop = ev_default_loop_init (flags); |
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535 | } |
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536 | |
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537 | return loop; |
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538 | } |
567 | } |
539 | |
568 | |
540 | /* create and destroy alternative loops that don't handle signals */ |
569 | /* create and destroy alternative loops that don't handle signals */ |
541 | struct ev_loop *ev_loop_new (unsigned int flags EV_DEFARG (0)); |
570 | EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); |
542 | void ev_loop_destroy (EV_PDEF); |
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543 | void ev_loop_fork (EV_PDEF); |
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544 | |
571 | |
545 | ev_tstamp ev_now (EV_PDEF); /* 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 */ |
546 | |
573 | |
547 | #else |
574 | #else |
548 | |
575 | |
549 | int ev_default_loop (unsigned int flags EV_DEFARG (0)); /* 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; |
550 | |
579 | |
551 | EV_INLINE ev_tstamp |
580 | EV_INLINE ev_tstamp |
552 | ev_now (void) |
581 | ev_now (void) |
553 | { |
582 | { |
554 | extern ev_tstamp ev_rt_now; |
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555 | |
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556 | return ev_rt_now; |
583 | return ev_rt_now; |
557 | } |
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 | |
558 | #endif /* multiplicity */ |
593 | #endif /* multiplicity */ |
559 | |
594 | |
560 | EV_INLINE int |
595 | /* destroy event loops, also works for the default loop */ |
561 | ev_is_default_loop (EV_PDEF) |
596 | EV_API_DECL void ev_loop_destroy (EV_P); |
562 | { |
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563 | #if EV_MULTIPLICITY |
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564 | extern struct ev_loop *ev_default_loop_ptr; |
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565 | |
597 | |
566 | return !!(EV_A == ev_default_loop_ptr); |
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567 | #else |
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568 | return 1; |
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569 | #endif |
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570 | } |
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571 | |
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572 | void ev_default_destroy (void); /* destroy the default loop */ |
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573 | /* this needs to be called after fork, to duplicate the default loop */ |
598 | /* this needs to be called after fork, to duplicate the loop */ |
574 | /* 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 */ |
575 | /* you can call it in either the parent or the child */ |
600 | /* you can call it in either the parent or the child */ |
576 | /* you can actually call it at any time, anywhere :) */ |
601 | /* you can actually call it at any time, anywhere :) */ |
577 | void ev_default_fork (void); |
602 | EV_API_DECL void ev_loop_fork (EV_P); |
578 | |
603 | |
579 | unsigned int ev_backend (EV_PDEF); /* backend in use by loop */ |
604 | EV_API_DECL unsigned int ev_backend (EV_P); /* backend in use by loop */ |
580 | |
605 | |
581 | void ev_now_update (EV_PDEF); /* update event loop time */ |
606 | EV_API_DECL void ev_now_update (EV_P); /* update event loop time */ |
582 | |
607 | |
583 | #if EV_WALK_ENABLE |
608 | #if EV_WALK_ENABLE |
584 | /* 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 */ |
585 | /* callback on every such watcher. The callback might stop the watcher, */ |
610 | /* callback on every such watcher. The callback might stop the watcher, */ |
586 | /* but do nothing else with the loop */ |
611 | /* but do nothing else with the loop */ |
587 | 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)); |
588 | #endif |
613 | #endif |
589 | |
614 | |
590 | #endif /* prototypes */ |
615 | #endif /* prototypes */ |
591 | |
616 | |
592 | /* ev_run flags values */ |
617 | /* ev_run flags values */ |
… | |
… | |
601 | EVBREAK_ONE = 1, /* unloop once */ |
626 | EVBREAK_ONE = 1, /* unloop once */ |
602 | EVBREAK_ALL = 2 /* unloop all loops */ |
627 | EVBREAK_ALL = 2 /* unloop all loops */ |
603 | }; |
628 | }; |
604 | |
629 | |
605 | #if EV_PROTOTYPES |
630 | #if EV_PROTOTYPES |
606 | void ev_run (EV_P_ int flags EV_DEFARG (0)); |
631 | EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0)); |
607 | void ev_break (EV_P_ int how EV_DEFARG (EVBREAK_ONE)); /* break out of the loop */ |
632 | EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ |
608 | |
633 | |
609 | /* |
634 | /* |
610 | * 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 |
611 | * 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 |
612 | * 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. |
613 | */ |
638 | */ |
614 | void ev_ref (EV_PDEF); |
639 | EV_API_DECL void ev_ref (EV_P); |
615 | void ev_unref (EV_PDEF); |
640 | EV_API_DECL void ev_unref (EV_P); |
616 | |
641 | |
617 | /* |
642 | /* |
618 | * 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 |
619 | * if timeout is < 0, do wait indefinitely |
644 | * if timeout is < 0, do wait indefinitely |
620 | */ |
645 | */ |
621 | 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); |
622 | |
647 | |
623 | # if EV_FEATURE_API |
648 | # if EV_FEATURE_API |
624 | unsigned int ev_iteration (EV_PDEF); /* number of loop iterations */ |
649 | EV_API_DECL unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
625 | unsigned int ev_depth (EV_PDEF); /* #ev_loop enters - #ev_loop leaves */ |
650 | EV_API_DECL unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
626 | void ev_verify (EV_PDEF); /* abort if loop data corrupted */ |
651 | EV_API_DECL void ev_verify (EV_P); /* abort if loop data corrupted */ |
627 | |
652 | |
628 | 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 */ |
629 | 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 */ |
630 | |
655 | |
631 | /* advanced stuff for threading etc. support, see docs */ |
656 | /* advanced stuff for threading etc. support, see docs */ |
632 | void ev_set_userdata (EV_P_ void *data); |
657 | EV_API_DECL void ev_set_userdata (EV_P_ void *data); |
633 | void *ev_userdata (EV_PDEF); |
658 | EV_API_DECL void *ev_userdata (EV_P); |
634 | 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)); |
635 | 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)); |
636 | |
661 | |
637 | unsigned int ev_pending_count (EV_PDEF); /* number of pending events, if any */ |
662 | EV_API_DECL unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
638 | void ev_invoke_pending (EV_PDEF); /* invoke all pending watchers */ |
663 | EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
639 | |
664 | |
640 | /* |
665 | /* |
641 | * stop/start the timer handling. |
666 | * stop/start the timer handling. |
642 | */ |
667 | */ |
643 | void ev_suspend (EV_PDEF); |
668 | EV_API_DECL void ev_suspend (EV_P); |
644 | void ev_resume (EV_PDEF); |
669 | EV_API_DECL void ev_resume (EV_P); |
645 | #endif |
670 | #endif |
646 | |
671 | |
647 | #endif |
672 | #endif |
648 | |
673 | |
649 | /* 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 */ |
… | |
… | |
664 | #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 */ |
665 | #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 */ |
666 | #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 */ |
667 | #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) |
668 | #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 */ |
669 | #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 */ |
670 | |
696 | |
671 | #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) |
672 | #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) |
673 | #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) |
… | |
… | |
677 | #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) |
678 | #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) |
679 | #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) |
680 | #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) |
681 | #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) |
682 | #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) |
683 | |
710 | |
684 | #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 */ |
685 | #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 */ |
686 | |
713 | |
… | |
… | |
702 | |
729 | |
703 | /* 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 */ |
704 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
731 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
705 | #if EV_PROTOTYPES |
732 | #if EV_PROTOTYPES |
706 | |
733 | |
707 | /* 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 */ |
708 | /* accepts any ev_watcher type */ |
735 | /* accepts any ev_watcher type */ |
709 | void ev_feed_event (EV_P_ void *w, int revents); |
736 | EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents); |
710 | 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); |
711 | #if EV_SIGNAL_ENABLE |
738 | #if EV_SIGNAL_ENABLE |
|
|
739 | EV_API_DECL void ev_feed_signal (int signum); |
712 | void ev_feed_signal_event (EV_P_ int signum); |
740 | EV_API_DECL void ev_feed_signal_event (EV_P_ int signum); |
713 | #endif |
741 | #endif |
714 | void ev_invoke (EV_P_ void *w, int revents); |
742 | EV_API_DECL void ev_invoke (EV_P_ void *w, int revents); |
715 | int ev_clear_pending (EV_P_ void *w); |
743 | EV_API_DECL int ev_clear_pending (EV_P_ void *w); |
716 | |
744 | |
717 | void ev_io_start (EV_P_ ev_io *w); |
745 | EV_API_DECL void ev_io_start (EV_P_ ev_io *w); |
718 | void ev_io_stop (EV_P_ ev_io *w); |
746 | EV_API_DECL void ev_io_stop (EV_P_ ev_io *w); |
719 | |
747 | |
720 | void ev_timer_start (EV_P_ ev_timer *w); |
748 | EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w); |
721 | void ev_timer_stop (EV_P_ ev_timer *w); |
749 | EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w); |
722 | /* 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 */ |
723 | void ev_timer_again (EV_P_ ev_timer *w); |
751 | EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w); |
724 | /* return remaining time */ |
752 | /* return remaining time */ |
725 | ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
753 | EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
726 | |
754 | |
727 | #if EV_PERIODIC_ENABLE |
755 | #if EV_PERIODIC_ENABLE |
728 | void ev_periodic_start (EV_P_ ev_periodic *w); |
756 | EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w); |
729 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
757 | EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w); |
730 | void ev_periodic_again (EV_P_ ev_periodic *w); |
758 | EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w); |
731 | #endif |
759 | #endif |
732 | |
760 | |
733 | /* only supported in the default loop */ |
761 | /* only supported in the default loop */ |
734 | #if EV_SIGNAL_ENABLE |
762 | #if EV_SIGNAL_ENABLE |
735 | void ev_signal_start (EV_P_ ev_signal *w); |
763 | EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w); |
736 | void ev_signal_stop (EV_P_ ev_signal *w); |
764 | EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w); |
737 | #endif |
765 | #endif |
738 | |
766 | |
739 | /* only supported in the default loop */ |
767 | /* only supported in the default loop */ |
740 | # if EV_CHILD_ENABLE |
768 | # if EV_CHILD_ENABLE |
741 | void ev_child_start (EV_P_ ev_child *w); |
769 | EV_API_DECL void ev_child_start (EV_P_ ev_child *w); |
742 | void ev_child_stop (EV_P_ ev_child *w); |
770 | EV_API_DECL void ev_child_stop (EV_P_ ev_child *w); |
743 | # endif |
771 | # endif |
744 | |
772 | |
745 | # if EV_STAT_ENABLE |
773 | # if EV_STAT_ENABLE |
746 | void ev_stat_start (EV_P_ ev_stat *w); |
774 | EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w); |
747 | void ev_stat_stop (EV_P_ ev_stat *w); |
775 | EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w); |
748 | void ev_stat_stat (EV_P_ ev_stat *w); |
776 | EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w); |
749 | # endif |
777 | # endif |
750 | |
778 | |
751 | # if EV_IDLE_ENABLE |
779 | # if EV_IDLE_ENABLE |
752 | void ev_idle_start (EV_P_ ev_idle *w); |
780 | EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w); |
753 | void ev_idle_stop (EV_P_ ev_idle *w); |
781 | EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w); |
754 | # endif |
782 | # endif |
755 | |
783 | |
756 | #if EV_PREPARE_ENABLE |
784 | #if EV_PREPARE_ENABLE |
757 | void ev_prepare_start (EV_P_ ev_prepare *w); |
785 | EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w); |
758 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
786 | EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w); |
759 | #endif |
787 | #endif |
760 | |
788 | |
761 | #if EV_CHECK_ENABLE |
789 | #if EV_CHECK_ENABLE |
762 | void ev_check_start (EV_P_ ev_check *w); |
790 | EV_API_DECL void ev_check_start (EV_P_ ev_check *w); |
763 | void ev_check_stop (EV_P_ ev_check *w); |
791 | EV_API_DECL void ev_check_stop (EV_P_ ev_check *w); |
764 | #endif |
792 | #endif |
765 | |
793 | |
766 | # if EV_FORK_ENABLE |
794 | # if EV_FORK_ENABLE |
767 | void ev_fork_start (EV_P_ ev_fork *w); |
795 | EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w); |
768 | 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); |
769 | # endif |
802 | # endif |
770 | |
803 | |
771 | # if EV_EMBED_ENABLE |
804 | # if EV_EMBED_ENABLE |
772 | /* only supported when loop to be embedded is in fact embeddable */ |
805 | /* only supported when loop to be embedded is in fact embeddable */ |
773 | void ev_embed_start (EV_P_ ev_embed *w); |
806 | EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w); |
774 | void ev_embed_stop (EV_P_ ev_embed *w); |
807 | EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w); |
775 | void ev_embed_sweep (EV_P_ ev_embed *w); |
808 | EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w); |
776 | # endif |
809 | # endif |
777 | |
810 | |
778 | # if EV_ASYNC_ENABLE |
811 | # if EV_ASYNC_ENABLE |
779 | void ev_async_start (EV_P_ ev_async *w); |
812 | EV_API_DECL void ev_async_start (EV_P_ ev_async *w); |
780 | void ev_async_stop (EV_P_ ev_async *w); |
813 | EV_API_DECL void ev_async_stop (EV_P_ ev_async *w); |
781 | void ev_async_send (EV_P_ ev_async *w); |
814 | EV_API_DECL void ev_async_send (EV_P_ ev_async *w); |
782 | # endif |
815 | # endif |
783 | |
816 | |
784 | #if EV_COMPAT3 |
817 | #if EV_COMPAT3 |
785 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
818 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
786 | #define EVLOOP_ONESHOT EVRUN_ONCE |
819 | #define EVLOOP_ONESHOT EVRUN_ONCE |
… | |
… | |
788 | #define EVUNLOOP_ONE EVBREAK_ONE |
821 | #define EVUNLOOP_ONE EVBREAK_ONE |
789 | #define EVUNLOOP_ALL EVBREAK_ALL |
822 | #define EVUNLOOP_ALL EVBREAK_ALL |
790 | #if EV_PROTOTYPES |
823 | #if EV_PROTOTYPES |
791 | 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); } |
792 | 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); } |
793 | #if EV_FEATURE_API |
828 | #if EV_FEATURE_API |
794 | 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); } |
795 | 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); } |
796 | 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); } |
797 | #endif |
832 | #endif |
798 | #endif |
833 | #endif |
799 | #else |
834 | #else |
800 | typedef struct ev_loop ev_loop; |
835 | typedef struct ev_loop ev_loop; |
801 | #endif |
836 | #endif |
802 | |
837 | |
803 | #endif |
838 | #endif |
804 | |
839 | |
805 | #ifdef __cplusplus |
840 | EV_CPP(}) |
806 | } |
|
|
807 | #endif |
|
|
808 | |
841 | |
809 | #endif |
842 | #endif |
810 | |
843 | |