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46 | |
46 | |
47 | #ifndef EV_MULTIPLICITY |
47 | #ifndef EV_MULTIPLICITY |
48 | # define EV_MULTIPLICITY 1 |
48 | # define EV_MULTIPLICITY 1 |
49 | #endif |
49 | #endif |
50 | |
50 | |
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51 | #ifndef EV_PERIODICS |
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52 | # define EV_PERIODICS 1 |
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53 | #endif |
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54 | |
51 | /* support multiple event loops? */ |
55 | /* support multiple event loops? */ |
52 | #if EV_MULTIPLICITY |
56 | #if EV_MULTIPLICITY |
53 | struct ev_loop; |
57 | struct ev_loop; |
54 | # define EV_P struct ev_loop *loop |
58 | # define EV_P struct ev_loop *loop |
55 | # define EV_P_ EV_P, |
59 | # define EV_P_ EV_P, |
56 | # define EV_A loop |
60 | # define EV_A loop |
57 | # define EV_A_ EV_A, |
61 | # define EV_A_ EV_A, |
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62 | # define EV_DEFAULT_A ev_default_loop (0) |
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63 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
58 | #else |
64 | #else |
59 | # define EV_P void |
65 | # define EV_P void |
60 | # define EV_P_ |
66 | # define EV_P_ |
61 | # define EV_A |
67 | # define EV_A |
62 | # define EV_A_ |
68 | # define EV_A_ |
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69 | # define EV_DEFAULT_A |
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70 | # define EV_DEFAULT_A_ |
63 | #endif |
71 | #endif |
64 | |
72 | |
65 | /* eventmask, revents, events... */ |
73 | /* eventmask, revents, events... */ |
66 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
74 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
67 | #define EV_NONE 0x00 |
75 | #define EV_NONE 0x00 |
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86 | |
94 | |
87 | #define EV_VERSION_MAJOR 1 |
95 | #define EV_VERSION_MAJOR 1 |
88 | #define EV_VERSION_MINOR 1 |
96 | #define EV_VERSION_MINOR 1 |
89 | |
97 | |
90 | #ifndef EV_CB_DECLARE |
98 | #ifndef EV_CB_DECLARE |
91 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents) |
99 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
92 | #endif |
100 | #endif |
93 | #ifndef EV_CB_INVOKE |
101 | #ifndef EV_CB_INVOKE |
94 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
102 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
95 | #endif |
103 | #endif |
96 | |
104 | |
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210 | /* the presence of this union forces similar struct layout */ |
218 | /* the presence of this union forces similar struct layout */ |
211 | union ev_any_watcher |
219 | union ev_any_watcher |
212 | { |
220 | { |
213 | struct ev_watcher w; |
221 | struct ev_watcher w; |
214 | struct ev_watcher_list wl; |
222 | struct ev_watcher_list wl; |
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223 | |
215 | struct ev_io io; |
224 | struct ev_io io; |
216 | struct ev_timer timer; |
225 | struct ev_timer timer; |
217 | struct ev_periodic periodic; |
226 | struct ev_periodic periodic; |
218 | struct ev_signal signal; |
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219 | struct ev_idle idle; |
227 | struct ev_idle idle; |
220 | struct ev_child child; |
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221 | struct ev_prepare prepare; |
228 | struct ev_prepare prepare; |
222 | struct ev_check check; |
229 | struct ev_check check; |
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230 | struct ev_signal signal; |
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231 | struct ev_child child; |
223 | }; |
232 | }; |
224 | |
233 | |
225 | #define EVMETHOD_AUTO 0 /* consults environment */ |
234 | #define EVMETHOD_AUTO 0 /* consults environment */ |
226 | #define EVMETHOD_SELECT 1 |
235 | #define EVMETHOD_SELECT 1 |
227 | #define EVMETHOD_POLL 2 |
236 | #define EVMETHOD_POLL 2 |
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259 | |
268 | |
260 | /* create and destroy alternative loops that don't handle signals */ |
269 | /* create and destroy alternative loops that don't handle signals */ |
261 | struct ev_loop *ev_loop_new (int methods); |
270 | struct ev_loop *ev_loop_new (int methods); |
262 | void ev_loop_destroy (EV_P); |
271 | void ev_loop_destroy (EV_P); |
263 | void ev_loop_fork (EV_P); |
272 | void ev_loop_fork (EV_P); |
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273 | |
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274 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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275 | |
264 | # else |
276 | # else |
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277 | |
265 | int ev_default_loop (int methods); /* returns true when successful */ |
278 | int ev_default_loop (int methods); /* returns true when successful */ |
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279 | |
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280 | static ev_tstamp |
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281 | ev_now () |
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282 | { |
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283 | extern ev_tstamp ev_rt_now; |
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284 | |
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285 | return ev_rt_now; |
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286 | } |
266 | # endif |
287 | # endif |
267 | |
288 | |
268 | void ev_default_destroy (void); /* destroy the default loop */ |
289 | void ev_default_destroy (void); /* destroy the default loop */ |
269 | /* this needs to be called after fork, to duplicate the default loop */ |
290 | /* this needs to be called after fork, to duplicate the default loop */ |
270 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
291 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
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281 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
302 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
282 | |
303 | |
283 | #if EV_PROTOTYPES |
304 | #if EV_PROTOTYPES |
284 | void ev_loop (EV_P_ int flags); |
305 | void ev_loop (EV_P_ int flags); |
285 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
306 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
286 | |
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287 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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288 | |
307 | |
289 | /* |
308 | /* |
290 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
309 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
291 | * keeps one reference. if you have a long-runing watcher you never unregister that |
310 | * keeps one reference. if you have a long-runing watcher you never unregister that |
292 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
311 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
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298 | /* if timeout is < 0, do wait indefinitely */ |
317 | /* if timeout is < 0, do wait indefinitely */ |
299 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
318 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
300 | #endif |
319 | #endif |
301 | |
320 | |
302 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
321 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
303 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
322 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
304 | #define ev_watcher_init(ev,cb_) do { \ |
323 | #define ev_init(ev,cb_) do { \ |
305 | ((struct ev_watcher *)(void *)(ev))->active = \ |
324 | ((struct ev_watcher *)(void *)(ev))->active = \ |
306 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
325 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
307 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
326 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
308 | (ev)->cb = (cb_); \ |
327 | ev_set_cb ((ev), cb_); \ |
309 | } while (0) |
328 | } while (0) |
310 | |
329 | |
311 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
330 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
312 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
331 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
313 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
332 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
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315 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
334 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
316 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
335 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
317 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
336 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
318 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
337 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
319 | |
338 | |
320 | #define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
339 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
321 | #define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
340 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
322 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
341 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
323 | #define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
342 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
324 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
343 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
325 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
344 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
326 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
345 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
327 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
346 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
328 | |
347 | |
329 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
348 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
330 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
349 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
331 | |
350 | |
332 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
351 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
333 | #define ev_cb(ev) (ev)->cb /* rw */ |
352 | #define ev_cb(ev) (ev)->cb /* rw */ |
334 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
353 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
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354 | |
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355 | #ifndef ev_set_cb |
335 | #define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
356 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
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357 | #endif |
336 | |
358 | |
337 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
359 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
338 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
360 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
339 | #if EV_PROTOTYPES |
361 | #if EV_PROTOTYPES |
340 | |
362 | |
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350 | void ev_timer_start (EV_P_ struct ev_timer *w); |
372 | void ev_timer_start (EV_P_ struct ev_timer *w); |
351 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
373 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
352 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
374 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
353 | void ev_timer_again (EV_P_ struct ev_timer *w); |
375 | void ev_timer_again (EV_P_ struct ev_timer *w); |
354 | |
376 | |
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377 | #if EV_PERIODICS |
355 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
378 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
356 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
379 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
357 | void ev_periodic_again (EV_P_ struct ev_periodic *w); |
380 | void ev_periodic_again (EV_P_ struct ev_periodic *w); |
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381 | #endif |
358 | |
382 | |
359 | void ev_idle_start (EV_P_ struct ev_idle *w); |
383 | void ev_idle_start (EV_P_ struct ev_idle *w); |
360 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
384 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
361 | |
385 | |
362 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |
386 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |