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96 | |
96 | |
97 | /* shared by all watchers */ |
97 | /* shared by all watchers */ |
98 | #define EV_WATCHER(type) \ |
98 | #define EV_WATCHER(type) \ |
99 | int active; /* private */ \ |
99 | int active; /* private */ \ |
100 | int pending; /* private */ \ |
100 | int pending; /* private */ \ |
101 | int priority; /* ro */ \ |
101 | int priority; /* private */ \ |
102 | EV_COMMON; /* rw */ \ |
102 | EV_COMMON; /* rw */ \ |
103 | void (*cb)(EV_P_ struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
103 | void (*cb)(EV_P_ struct type *, int revents) /* private */ /* gets invoked with an eventmask */ |
104 | |
104 | |
105 | #define EV_WATCHER_LIST(type) \ |
105 | #define EV_WATCHER_LIST(type) \ |
106 | EV_WATCHER (type); \ |
106 | EV_WATCHER (type); \ |
107 | struct ev_watcher_list *next /* private */ |
107 | struct ev_watcher_list *next /* private */ |
108 | |
108 | |
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195 | EV_WATCHER_LIST (ev_child); |
195 | EV_WATCHER_LIST (ev_child); |
196 | |
196 | |
197 | int pid; /* ro */ |
197 | int pid; /* ro */ |
198 | int rpid; /* rw, holds the received pid */ |
198 | int rpid; /* rw, holds the received pid */ |
199 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
199 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
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200 | }; |
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201 | |
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202 | union ev_any_watcher |
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203 | { |
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204 | struct ev_watcher w; |
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205 | struct ev_watcher_list wl; |
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206 | struct ev_io io; |
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207 | struct ev_timer timer; |
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208 | struct ev_periodic periodic; |
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209 | struct ev_signal signal; |
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210 | struct ev_idle idle; |
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211 | struct ev_child child; |
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212 | struct ev_prepare prepare; |
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213 | struct ev_check check; |
200 | }; |
214 | }; |
201 | |
215 | |
202 | #define EVMETHOD_AUTO 0 /* consults environment */ |
216 | #define EVMETHOD_AUTO 0 /* consults environment */ |
203 | #define EVMETHOD_SELECT 1 |
217 | #define EVMETHOD_SELECT 1 |
204 | #define EVMETHOD_POLL 2 |
218 | #define EVMETHOD_POLL 2 |
205 | #define EVMETHOD_EPOLL 4 |
219 | #define EVMETHOD_EPOLL 4 |
206 | #define EVMETHOD_KQUEUE 8 |
220 | #define EVMETHOD_KQUEUE 8 |
207 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
221 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
208 | #define EVMETHOD_PORT 32 /* NYI */ |
222 | #define EVMETHOD_PORT 32 /* NYI */ |
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223 | #define EVMETHOD_WIN32 64 /* NYI */ |
209 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
224 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
210 | |
225 | |
211 | #if EV_PROTOTYPES |
226 | #if EV_PROTOTYPES |
212 | int ev_version_major (void); |
227 | int ev_version_major (void); |
213 | int ev_version_minor (void); |
228 | int ev_version_minor (void); |
214 | |
229 | |
215 | ev_tstamp ev_time (void); |
230 | ev_tstamp ev_time (void); |
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231 | |
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232 | /* Sets the allocation function to use, works like realloc. |
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233 | * It is used to allocate and free memory. |
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234 | * If it returns zero when memory needs to be allocated, the library might abort |
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235 | * or take some potentially destructive action. |
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236 | * The default is your system realloc function. |
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237 | */ |
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238 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
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239 | |
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240 | /* set the callback function to call on a |
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241 | * retryable syscall error |
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242 | * (such as failed select, poll, epoll_wait) |
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243 | */ |
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244 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
216 | |
245 | |
217 | # if EV_MULTIPLICITY |
246 | # if EV_MULTIPLICITY |
218 | /* the default loop is the only one that handles signals and child watchers */ |
247 | /* the default loop is the only one that handles signals and child watchers */ |
219 | /* you can call this as often as you like */ |
248 | /* you can call this as often as you like */ |
220 | struct ev_loop *ev_default_loop (int methods); /* returns default loop */ |
249 | struct ev_loop *ev_default_loop (int methods); /* returns default loop */ |
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261 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
290 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
262 | #endif |
291 | #endif |
263 | |
292 | |
264 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
293 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
265 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
294 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
266 | #define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) |
295 | #define ev_watcher_init(ev,cb_) do { \ |
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296 | ((struct ev_watcher *)(void *)(ev))->active = \ |
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297 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
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298 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
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299 | (ev)->cb = (cb_); \ |
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300 | } while (0) |
267 | |
301 | |
268 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
302 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
269 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
303 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
270 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
304 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
271 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
305 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
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281 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
315 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
282 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
316 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
283 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
317 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
284 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
318 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
285 | |
319 | |
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320 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
286 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
321 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
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322 | |
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323 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
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324 | #define ev_cb(ev) (ev)->cb /* rw */ |
287 | #define ev_set_priority(ev,pri) (ev)->priority = pri |
325 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
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326 | #define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
288 | |
327 | |
289 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
328 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
290 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
329 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
291 | #if EV_PROTOTYPES |
330 | #if EV_PROTOTYPES |
292 | void ev_io_start (EV_P_ struct ev_io *w); |
331 | void ev_io_start (EV_P_ struct ev_io *w); |