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53 | struct ev_loop; |
53 | struct ev_loop; |
54 | # define EV_P struct ev_loop *loop |
54 | # define EV_P struct ev_loop *loop |
55 | # define EV_P_ EV_P, |
55 | # define EV_P_ EV_P, |
56 | # define EV_A loop |
56 | # define EV_A loop |
57 | # define EV_A_ EV_A, |
57 | # define EV_A_ EV_A, |
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58 | # define EV_DEFAULT_A ev_default_loop (0) |
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59 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
58 | #else |
60 | #else |
59 | # define EV_P void |
61 | # define EV_P void |
60 | # define EV_P_ |
62 | # define EV_P_ |
61 | # define EV_A |
63 | # define EV_A |
62 | # define EV_A_ |
64 | # define EV_A_ |
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65 | # define EV_DEFAULT_A |
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66 | # define EV_DEFAULT_A_ |
63 | #endif |
67 | #endif |
64 | |
68 | |
65 | /* eventmask, revents, events... */ |
69 | /* eventmask, revents, events... */ |
66 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
70 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
67 | #define EV_NONE 0x00 |
71 | #define EV_NONE 0x00 |
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86 | |
90 | |
87 | #define EV_VERSION_MAJOR 1 |
91 | #define EV_VERSION_MAJOR 1 |
88 | #define EV_VERSION_MINOR 1 |
92 | #define EV_VERSION_MINOR 1 |
89 | |
93 | |
90 | #ifndef EV_CB_DECLARE |
94 | #ifndef EV_CB_DECLARE |
91 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents) |
95 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
92 | #endif |
96 | #endif |
93 | #ifndef EV_CB_INVOKE |
97 | #ifndef EV_CB_INVOKE |
94 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
98 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
95 | #endif |
99 | #endif |
96 | |
100 | |
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210 | /* the presence of this union forces similar struct layout */ |
214 | /* the presence of this union forces similar struct layout */ |
211 | union ev_any_watcher |
215 | union ev_any_watcher |
212 | { |
216 | { |
213 | struct ev_watcher w; |
217 | struct ev_watcher w; |
214 | struct ev_watcher_list wl; |
218 | struct ev_watcher_list wl; |
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219 | |
215 | struct ev_io io; |
220 | struct ev_io io; |
216 | struct ev_timer timer; |
221 | struct ev_timer timer; |
217 | struct ev_periodic periodic; |
222 | struct ev_periodic periodic; |
218 | struct ev_signal signal; |
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219 | struct ev_idle idle; |
223 | struct ev_idle idle; |
220 | struct ev_child child; |
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221 | struct ev_prepare prepare; |
224 | struct ev_prepare prepare; |
222 | struct ev_check check; |
225 | struct ev_check check; |
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226 | struct ev_signal signal; |
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227 | struct ev_child child; |
223 | }; |
228 | }; |
224 | |
229 | |
225 | #define EVMETHOD_AUTO 0 /* consults environment */ |
230 | #define EVMETHOD_AUTO 0 /* consults environment */ |
226 | #define EVMETHOD_SELECT 1 |
231 | #define EVMETHOD_SELECT 1 |
227 | #define EVMETHOD_POLL 2 |
232 | #define EVMETHOD_POLL 2 |
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259 | |
264 | |
260 | /* create and destroy alternative loops that don't handle signals */ |
265 | /* create and destroy alternative loops that don't handle signals */ |
261 | struct ev_loop *ev_loop_new (int methods); |
266 | struct ev_loop *ev_loop_new (int methods); |
262 | void ev_loop_destroy (EV_P); |
267 | void ev_loop_destroy (EV_P); |
263 | void ev_loop_fork (EV_P); |
268 | void ev_loop_fork (EV_P); |
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269 | |
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270 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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271 | |
264 | # else |
272 | # else |
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273 | |
265 | int ev_default_loop (int methods); /* returns true when successful */ |
274 | int ev_default_loop (int methods); /* returns true when successful */ |
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275 | |
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276 | static ev_tstamp |
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277 | ev_now () |
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278 | { |
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279 | extern ev_tstamp ev_rt_now; |
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280 | |
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281 | return ev_rt_now; |
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282 | } |
266 | # endif |
283 | # endif |
267 | |
284 | |
268 | void ev_default_destroy (void); /* destroy the default loop */ |
285 | void ev_default_destroy (void); /* destroy the default loop */ |
269 | /* this needs to be called after fork, to duplicate the default loop */ |
286 | /* 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 */ |
287 | /* 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 */ |
298 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
282 | |
299 | |
283 | #if EV_PROTOTYPES |
300 | #if EV_PROTOTYPES |
284 | void ev_loop (EV_P_ int flags); |
301 | 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 */ |
302 | 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 | |
303 | |
289 | /* |
304 | /* |
290 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
305 | * 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 |
306 | * 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. |
307 | * 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 */ |
313 | /* 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); |
314 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
300 | #endif |
315 | #endif |
301 | |
316 | |
302 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
317 | /* 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 */ |
318 | /* 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 { \ |
319 | #define ev_init(ev,cb_) do { \ |
305 | ((struct ev_watcher *)(void *)(ev))->active = \ |
320 | ((struct ev_watcher *)(void *)(ev))->active = \ |
306 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
321 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
307 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
322 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
308 | (ev)->cb = (cb_); \ |
323 | ev_set_cb ((ev), cb_); \ |
309 | } while (0) |
324 | } while (0) |
310 | |
325 | |
311 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
326 | #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) |
327 | #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) |
328 | #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 */ |
330 | #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 */ |
331 | #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 */ |
332 | #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) |
333 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
319 | |
334 | |
320 | #define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
335 | #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) |
336 | #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) |
337 | #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) |
338 | #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) |
339 | #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) |
340 | #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) |
341 | #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) |
342 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
328 | |
343 | |
329 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
344 | #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 */ |
345 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
331 | |
346 | |
332 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
347 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
333 | #define ev_cb(ev) (ev)->cb /* rw */ |
348 | #define ev_cb(ev) (ev)->cb /* rw */ |
334 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
349 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
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350 | |
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351 | #ifndef ev_set_cb |
335 | #define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
352 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
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353 | #endif |
336 | |
354 | |
337 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
355 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
338 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
356 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
339 | #if EV_PROTOTYPES |
357 | #if EV_PROTOTYPES |
340 | |
358 | |