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42 | #endif |
42 | #endif |
43 | #ifndef EV_MAXPRI |
43 | #ifndef EV_MAXPRI |
44 | # define EV_MAXPRI +2 |
44 | # define EV_MAXPRI +2 |
45 | #endif |
45 | #endif |
46 | |
46 | |
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47 | #ifndef EV_MULTIPLICITY |
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48 | # define EV_MULTIPLICITY 1 |
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49 | #endif |
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50 | |
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51 | /* support multiple event loops? */ |
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52 | #if EV_MULTIPLICITY |
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53 | struct ev_loop; |
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54 | # define EV_P struct ev_loop *loop |
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55 | # define EV_P_ EV_P, |
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56 | # define EV_A loop |
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57 | # define EV_A_ EV_A, |
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58 | #else |
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59 | # define EV_P void |
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60 | # define EV_P_ |
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61 | # define EV_A |
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62 | # define EV_A_ |
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63 | #endif |
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64 | |
47 | /* eventmask, revents, events... */ |
65 | /* eventmask, revents, events... */ |
48 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
66 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
49 | #define EV_NONE 0x00 |
67 | #define EV_NONE 0x00 |
50 | #define EV_READ 0x01 |
68 | #define EV_READ 0x01 |
51 | #define EV_WRITE 0x02 |
69 | #define EV_WRITE 0x02 |
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80 | #define EV_WATCHER(type) \ |
98 | #define EV_WATCHER(type) \ |
81 | int active; /* private */ \ |
99 | int active; /* private */ \ |
82 | int pending; /* private */ \ |
100 | int pending; /* private */ \ |
83 | int priority; /* ro */ \ |
101 | int priority; /* ro */ \ |
84 | EV_COMMON; /* rw */ \ |
102 | EV_COMMON; /* rw */ \ |
85 | void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
103 | void (*cb)(EV_P_ struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
86 | |
104 | |
87 | #define EV_WATCHER_LIST(type) \ |
105 | #define EV_WATCHER_LIST(type) \ |
88 | EV_WATCHER (type); \ |
106 | EV_WATCHER (type); \ |
89 | struct type *next /* private */ |
107 | struct ev_watcher_list *next /* private */ |
90 | |
108 | |
91 | #define EV_WATCHER_TIME(type) \ |
109 | #define EV_WATCHER_TIME(type) \ |
92 | EV_WATCHER (type); \ |
110 | EV_WATCHER (type); \ |
93 | ev_tstamp at /* private */ |
111 | ev_tstamp at /* private */ |
94 | |
112 | |
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138 | /* invoked when the given signal has been received */ |
156 | /* invoked when the given signal has been received */ |
139 | /* revent EV_SIGNAL */ |
157 | /* revent EV_SIGNAL */ |
140 | struct ev_signal |
158 | struct ev_signal |
141 | { |
159 | { |
142 | EV_WATCHER_LIST (ev_signal); |
160 | EV_WATCHER_LIST (ev_signal); |
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161 | #if EV_MULTIPLICITY |
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162 | struct ev_loop *loop; |
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163 | #endif |
143 | |
164 | |
144 | int signum; /* ro */ |
165 | int signum; /* ro */ |
145 | }; |
166 | }; |
146 | |
167 | |
147 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
168 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
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166 | EV_WATCHER (ev_check); |
187 | EV_WATCHER (ev_check); |
167 | }; |
188 | }; |
168 | |
189 | |
169 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
190 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
170 | /* revent EV_CHILD */ |
191 | /* revent EV_CHILD */ |
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192 | /* does not support priorities */ |
171 | struct ev_child |
193 | struct ev_child |
172 | { |
194 | { |
173 | EV_WATCHER_LIST (ev_child); |
195 | EV_WATCHER_LIST (ev_child); |
174 | |
196 | |
175 | int pid; /* ro */ |
197 | int pid; /* ro */ |
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198 | int rpid; /* rw, holds the received pid */ |
176 | int status; /* 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 */ |
177 | }; |
200 | }; |
178 | |
201 | |
179 | #define EVMETHOD_AUTO 0 /* consults environment */ |
202 | #define EVMETHOD_AUTO 0 /* consults environment */ |
180 | #define EVMETHOD_SELECT 1 |
203 | #define EVMETHOD_SELECT 1 |
181 | #define EVMETHOD_POLL 2 |
204 | #define EVMETHOD_POLL 2 |
182 | #define EVMETHOD_EPOLL 4 |
205 | #define EVMETHOD_EPOLL 4 |
183 | #define EVMETHOD_KQUEUE 8 |
206 | #define EVMETHOD_KQUEUE 8 |
184 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
207 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
185 | #define EVMETHOD_PORT 32 /* NYI */ |
208 | #define EVMETHOD_PORT 32 /* NYI */ |
186 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
209 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
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210 | |
187 | #if EV_PROTOTYPES |
211 | #if EV_PROTOTYPES |
188 | extern int ev_method; |
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189 | int ev_init (int methods); /* returns ev_method */ |
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190 | int ev_version_major (void); |
212 | int ev_version_major (void); |
191 | int ev_version_minor (void); |
213 | int ev_version_minor (void); |
192 | |
214 | |
193 | /* these three calls are suitable for plugging into pthread_atfork */ |
215 | /* these three calls are suitable for plugging into pthread_atfork */ |
194 | void ev_fork_prepare (void); |
216 | void ev_fork_prepare (void); |
195 | void ev_fork_parent (void); |
217 | void ev_fork_parent (void); |
196 | void ev_fork_child (void); |
218 | void ev_fork_child (void); |
197 | |
219 | |
198 | extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ |
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199 | ev_tstamp ev_time (void); |
220 | ev_tstamp ev_time (void); |
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221 | |
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222 | # if EV_MULTIPLICITY |
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223 | struct ev_loop *ev_loop_new (int methods); |
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224 | void ev_loop_delete (EV_P); |
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225 | # else |
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226 | int ev_init (int methods); /* returns ev_method */ |
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227 | # endif |
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228 | |
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229 | int ev_method (EV_P); |
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230 | |
200 | #endif |
231 | #endif |
201 | |
232 | |
202 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
233 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
203 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
234 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
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235 | #define EVUNLOOP_ONCE 1 /* unloop once */ |
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236 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
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237 | |
204 | #if EV_PROTOTYPES |
238 | #if EV_PROTOTYPES |
205 | void ev_loop (int flags); |
239 | void ev_loop (EV_P_ int flags); |
206 | extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
240 | 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 */ |
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241 | |
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242 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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243 | |
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244 | /* |
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245 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
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246 | * keeps one reference. if you have a long-runing watcher you never unregister that |
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247 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
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248 | */ |
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249 | void ev_ref (EV_P); |
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250 | void ev_unref (EV_P); |
207 | |
251 | |
208 | /* convinience function, wait for a single event, without registering an event watcher */ |
252 | /* convinience function, wait for a single event, without registering an event watcher */ |
209 | /* if timeout is < 0, do wait indefinitely */ |
253 | /* if timeout is < 0, do wait indefinitely */ |
210 | void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
254 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
211 | #endif |
255 | #endif |
212 | |
256 | |
213 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
257 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
214 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
258 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
215 | #define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) |
259 | #define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) |
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236 | #define ev_set_priority(ev,pri) (ev)->priority = pri |
280 | #define ev_set_priority(ev,pri) (ev)->priority = pri |
237 | |
281 | |
238 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
282 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
239 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
283 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
240 | #if EV_PROTOTYPES |
284 | #if EV_PROTOTYPES |
241 | void ev_io_start (struct ev_io *w); |
285 | void ev_io_start (EV_P_ struct ev_io *w); |
242 | void ev_io_stop (struct ev_io *w); |
286 | void ev_io_stop (EV_P_ struct ev_io *w); |
243 | |
287 | |
244 | void ev_timer_start (struct ev_timer *w); |
288 | void ev_timer_start (EV_P_ struct ev_timer *w); |
245 | void ev_timer_stop (struct ev_timer *w); |
289 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
246 | void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
290 | void ev_timer_again (EV_P_ struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
247 | |
291 | |
248 | void ev_periodic_start (struct ev_periodic *w); |
292 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
249 | void ev_periodic_stop (struct ev_periodic *w); |
293 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
250 | |
294 | |
251 | void ev_signal_start (struct ev_signal *w); |
295 | void ev_signal_start (EV_P_ struct ev_signal *w); |
252 | void ev_signal_stop (struct ev_signal *w); |
296 | void ev_signal_stop (EV_P_ struct ev_signal *w); |
253 | |
297 | |
254 | void ev_idle_start (struct ev_idle *w); |
298 | void ev_idle_start (EV_P_ struct ev_idle *w); |
255 | void ev_idle_stop (struct ev_idle *w); |
299 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
256 | |
300 | |
257 | void ev_prepare_start (struct ev_prepare *w); |
301 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |
258 | void ev_prepare_stop (struct ev_prepare *w); |
302 | void ev_prepare_stop (EV_P_ struct ev_prepare *w); |
259 | |
303 | |
260 | void ev_check_start (struct ev_check *w); |
304 | void ev_check_start (EV_P_ struct ev_check *w); |
261 | void ev_check_stop (struct ev_check *w); |
305 | void ev_check_stop (EV_P_ struct ev_check *w); |
262 | |
306 | |
263 | void ev_child_start (struct ev_child *w); |
307 | void ev_child_start (EV_P_ struct ev_child *w); |
264 | void ev_child_stop (struct ev_child *w); |
308 | void ev_child_stop (EV_P_ struct ev_child *w); |
265 | #endif |
309 | #endif |
266 | |
310 | |
267 | #ifdef __cplusplus |
311 | #ifdef __cplusplus |
268 | } |
312 | } |
269 | #endif |
313 | #endif |