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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 | /*****************************************************************************/ |
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52 | |
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53 | /* pre-4.0 compatibility */ |
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54 | #ifndef EV_COMPAT3 |
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55 | # define EV_COMPAT3 1 |
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56 | #endif |
48 | |
57 | |
49 | #ifndef EV_FEATURES |
58 | #ifndef EV_FEATURES |
50 | # define EV_FEATURES 0x7f |
59 | # define EV_FEATURES 0x7f |
51 | #endif |
60 | #endif |
52 | |
61 | |
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143 | #endif |
152 | #endif |
144 | |
153 | |
145 | /* support multiple event loops? */ |
154 | /* support multiple event loops? */ |
146 | #if EV_MULTIPLICITY |
155 | #if EV_MULTIPLICITY |
147 | struct ev_loop; |
156 | struct ev_loop; |
148 | # define EV_P struct ev_loop *loop |
157 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
149 | # define EV_P_ EV_P, |
158 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
150 | # define EV_A loop |
159 | # define EV_A loop /* a loop as sole argument to a function call */ |
151 | # define EV_A_ EV_A, |
160 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
152 | # define EV_DEFAULT_UC ev_default_loop_uc () |
161 | # define EV_DEFAULT_UC ev_default_loop_uc () /* the default loop, if initialised, as sole arg */ |
153 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
162 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
154 | # define EV_DEFAULT ev_default_loop (0) |
163 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
155 | # define EV_DEFAULT_ EV_DEFAULT, |
164 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
156 | #else |
165 | #else |
157 | # define EV_P void |
166 | # define EV_P void |
158 | # define EV_P_ |
167 | # define EV_P_ |
159 | # define EV_A |
168 | # define EV_A |
160 | # define EV_A_ |
169 | # define EV_A_ |
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163 | # define EV_DEFAULT_UC |
172 | # define EV_DEFAULT_UC |
164 | # define EV_DEFAULT_UC_ |
173 | # define EV_DEFAULT_UC_ |
165 | # undef EV_EMBED_ENABLE |
174 | # undef EV_EMBED_ENABLE |
166 | #endif |
175 | #endif |
167 | |
176 | |
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177 | /* EV_INLINE is used for functions in header files */ |
168 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
178 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
169 | # define EV_INLINE static inline |
179 | # define EV_INLINE static inline |
170 | #else |
180 | #else |
171 | # define EV_INLINE static |
181 | # define EV_INLINE static |
172 | #endif |
182 | #endif |
173 | |
183 | |
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184 | /* EV_PROTOTYPES can be sued to switch of prototype declarations */ |
174 | #ifndef EV_PROTOTYPES |
185 | #ifndef EV_PROTOTYPES |
175 | # define EV_PROTOTYPES 1 |
186 | # define EV_PROTOTYPES 1 |
176 | #endif |
187 | #endif |
177 | |
188 | |
178 | /*****************************************************************************/ |
189 | /*****************************************************************************/ |
179 | |
190 | |
180 | #define EV_VERSION_MAJOR 4 |
191 | #define EV_VERSION_MAJOR 4 |
181 | #define EV_VERSION_MINOR 0 |
192 | #define EV_VERSION_MINOR 0 |
182 | |
193 | |
183 | /* eventmask, revents, events... */ |
194 | /* eventmask, revents, events... */ |
184 | //TODO: enum? |
195 | enum { |
185 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
196 | EV_UNDEF = -1, /* guaranteed to be invalid */ |
186 | #define EV_NONE 0x00 /* no events */ |
197 | EV_NONE = 0x00, /* no events */ |
187 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
198 | EV_READ = 0x01, /* ev_io detected read will not block */ |
188 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
199 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
189 | #define EV__IOFDSET 0x80 /* internal use only */ |
200 | EV__IOFDSET = 0x80, /* internal use only */ |
190 | #define EV_IO EV_READ /* alias for type-detection */ |
201 | EV_IO = EV_READ, /* alias for type-detection */ |
191 | #define EV_TIMER 0x00000100 /* timer timed out */ |
202 | EV_TIMER = 0x00000100, /* timer timed out */ |
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203 | #if EV_COMPAT3 |
192 | #define EV_TIMEOUT EV_TIMER /* pre 4.0 API compatibility */ |
204 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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205 | #endif |
193 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
206 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
194 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
207 | EV_SIGNAL = 0x00000400, /* signal was received */ |
195 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
208 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
196 | #define EV_STAT 0x00001000 /* stat data changed */ |
209 | EV_STAT = 0x00001000, /* stat data changed */ |
197 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
210 | EV_IDLE = 0x00002000, /* event loop is idling */ |
198 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
211 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
199 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
212 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
200 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
213 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
201 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
214 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
202 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
215 | EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
203 | #define EV_CUSTOM 0x01000000 /* for use by user code */ |
216 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
204 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
217 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
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218 | }; |
205 | |
219 | |
206 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
220 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
207 | #ifndef EV_COMMON |
221 | #ifndef EV_COMMON |
208 | # define EV_COMMON void *data; |
222 | # define EV_COMMON void *data; |
209 | #endif |
223 | #endif |
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442 | #if EV_ASYNC_ENABLE |
456 | #if EV_ASYNC_ENABLE |
443 | struct ev_async async; |
457 | struct ev_async async; |
444 | #endif |
458 | #endif |
445 | }; |
459 | }; |
446 | |
460 | |
447 | //TODO: enum? |
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448 | /* bits for ev_default_loop and ev_loop_new */ |
461 | /* flag bits for ev_default_loop and ev_loop_new */ |
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462 | enum { |
449 | /* the default */ |
463 | /* the default */ |
450 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
464 | EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
451 | /* flag bits */ |
465 | /* flag bits */ |
452 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
466 | EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
453 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
467 | EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
454 | /* debugging/feature disable */ |
468 | /* debugging/feature disable */ |
455 | #define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ |
469 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
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470 | #if EV_COMPAT3 |
456 | #define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */ |
471 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
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472 | #endif |
457 | #define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */ |
473 | EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ |
458 | //TODO: enum? |
474 | }; |
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475 | |
459 | /* method bits to be ored together */ |
476 | /* method bits to be ored together */ |
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477 | enum { |
460 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
478 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
461 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
479 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
462 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
480 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
463 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
481 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
464 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
482 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
465 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
483 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
466 | #define EVBACKEND_ALL 0x0000003FU |
484 | EVBACKEND_ALL = 0x0000003FU |
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485 | }; |
467 | |
486 | |
468 | #if EV_PROTOTYPES |
487 | #if EV_PROTOTYPES |
469 | int ev_version_major (void); |
488 | int ev_version_major (void); |
470 | int ev_version_minor (void); |
489 | int ev_version_minor (void); |
471 | |
490 | |
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500 | } |
519 | } |
501 | |
520 | |
502 | /* the default loop is the only one that handles signals and child watchers */ |
521 | /* the default loop is the only one that handles signals and child watchers */ |
503 | /* you can call this as often as you like */ |
522 | /* you can call this as often as you like */ |
504 | EV_INLINE struct ev_loop * |
523 | EV_INLINE struct ev_loop * |
505 | ev_default_loop (unsigned int flags) |
524 | ev_default_loop (unsigned int flags EV_CPP (= 0)) |
506 | { |
525 | { |
507 | struct ev_loop *loop = ev_default_loop_uc (); |
526 | struct ev_loop *loop = ev_default_loop_uc (); |
508 | |
527 | |
509 | if (!loop) |
528 | if (!loop) |
510 | { |
529 | { |
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515 | |
534 | |
516 | return loop; |
535 | return loop; |
517 | } |
536 | } |
518 | |
537 | |
519 | /* create and destroy alternative loops that don't handle signals */ |
538 | /* create and destroy alternative loops that don't handle signals */ |
520 | struct ev_loop *ev_loop_new (unsigned int flags); |
539 | struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); |
521 | void ev_loop_destroy (EV_P); |
540 | void ev_loop_destroy (EV_P); |
522 | void ev_loop_fork (EV_P); |
541 | void ev_loop_fork (EV_P); |
523 | |
542 | |
524 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
543 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
525 | |
544 | |
526 | #else |
545 | #else |
527 | |
546 | |
528 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
547 | int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */ |
529 | |
548 | |
530 | EV_INLINE ev_tstamp |
549 | EV_INLINE ev_tstamp |
531 | ev_now (void) |
550 | ev_now (void) |
532 | { |
551 | { |
533 | extern ev_tstamp ev_rt_now; |
552 | extern ev_tstamp ev_rt_now; |
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566 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
585 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
567 | #endif |
586 | #endif |
568 | |
587 | |
569 | #endif /* prototypes */ |
588 | #endif /* prototypes */ |
570 | |
589 | |
571 | //TODO: enum? |
590 | /* ev_run flags values */ |
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591 | enum { |
572 | #define EVRUN_NOWAIT 1 /* do not block/wait */ |
592 | EVRUN_NOWAIT = 1, /* do not block/wait */ |
573 | #define EVRUN_ONCE 2 /* block *once* only */ |
593 | EVRUN_ONCE = 2 /* block *once* only */ |
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594 | }; |
574 | |
595 | |
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596 | /* ev_break how values */ |
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597 | enum { |
575 | #define EVBREAK_CANCEL 0 /* undo unloop */ |
598 | EVBREAK_CANCEL = 0, /* undo unloop */ |
576 | #define EVBREAK_ONE 1 /* unloop once */ |
599 | EVBREAK_ONE = 1, /* unloop once */ |
577 | #define EVBREAK_ALL 2 /* unloop all loops */ |
600 | EVBREAK_ALL = 2 /* unloop all loops */ |
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601 | }; |
578 | |
602 | |
579 | #if EV_PROTOTYPES |
603 | #if EV_PROTOTYPES |
580 | void ev_run (EV_P_ int flags); |
604 | void ev_run (EV_P_ int flags EV_CPP (= 0)); |
581 | 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 */ |
605 | void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ |
582 | |
606 | |
583 | /* |
607 | /* |
584 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
608 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
585 | * keeps one reference. if you have a long-running watcher you never unregister that |
609 | * keeps one reference. if you have a long-running watcher you never unregister that |
586 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
610 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
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752 | # if EV_ASYNC_ENABLE |
776 | # if EV_ASYNC_ENABLE |
753 | void ev_async_start (EV_P_ ev_async *w); |
777 | void ev_async_start (EV_P_ ev_async *w); |
754 | void ev_async_stop (EV_P_ ev_async *w); |
778 | void ev_async_stop (EV_P_ ev_async *w); |
755 | void ev_async_send (EV_P_ ev_async *w); |
779 | void ev_async_send (EV_P_ ev_async *w); |
756 | # endif |
780 | # endif |
757 | |
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758 | /* pre-4.0 compatibility */ |
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759 | #ifndef EV_COMPAT3 |
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760 | # define EV_COMPAT3 1 |
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761 | #endif |
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762 | |
781 | |
763 | #if EV_COMPAT3 |
782 | #if EV_COMPAT3 |
764 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
783 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
765 | #define EVLOOP_ONESHOT EVRUN_ONCE |
784 | #define EVLOOP_ONESHOT EVRUN_ONCE |
766 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
785 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
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779 | typedef struct ev_loop ev_loop; |
798 | typedef struct ev_loop ev_loop; |
780 | #endif |
799 | #endif |
781 | |
800 | |
782 | #endif |
801 | #endif |
783 | |
802 | |
784 | #ifdef __cplusplus |
803 | EV_CPP(}) |
785 | } |
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786 | #endif |
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787 | |
804 | |
788 | #endif |
805 | #endif |
789 | |
806 | |