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33 | #ifdef __cplusplus |
33 | #ifdef __cplusplus |
34 | extern "C" { |
34 | extern "C" { |
35 | #endif |
35 | #endif |
36 | |
36 | |
37 | typedef double ev_tstamp; |
37 | typedef double ev_tstamp; |
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38 | |
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39 | /* these priorities are inclusive, higher priorities will be called earlier */ |
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40 | #ifndef EV_MINPRI |
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41 | # define EV_MINPRI -2 |
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42 | #endif |
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43 | #ifndef EV_MAXPRI |
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44 | # define EV_MAXPRI +2 |
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45 | #endif |
38 | |
46 | |
39 | /* eventmask, revents, events... */ |
47 | /* eventmask, revents, events... */ |
40 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
48 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
41 | #define EV_NONE 0x00 |
49 | #define EV_NONE 0x00 |
42 | #define EV_READ 0x01 |
50 | #define EV_READ 0x01 |
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70 | |
78 | |
71 | /* shared by all watchers */ |
79 | /* shared by all watchers */ |
72 | #define EV_WATCHER(type) \ |
80 | #define EV_WATCHER(type) \ |
73 | int active; /* private */ \ |
81 | int active; /* private */ \ |
74 | int pending; /* private */ \ |
82 | int pending; /* private */ \ |
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83 | int priority; /* ro */ \ |
75 | EV_COMMON; /* rw */ \ |
84 | EV_COMMON; /* rw */ \ |
76 | void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
85 | void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
77 | |
86 | |
78 | #define EV_WATCHER_LIST(type) \ |
87 | #define EV_WATCHER_LIST(type) \ |
79 | EV_WATCHER (type); \ |
88 | EV_WATCHER (type); \ |
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165 | |
174 | |
166 | int pid; /* ro */ |
175 | int pid; /* ro */ |
167 | int status; /* rw, holds the exit status, use the macros from sys/wait.h */ |
176 | int status; /* rw, holds the exit status, use the macros from sys/wait.h */ |
168 | }; |
177 | }; |
169 | |
178 | |
170 | #define EVMETHOD_NONE 0 |
179 | #define EVMETHOD_AUTO 0 /* consults environment */ |
171 | #define EVMETHOD_SELECT 1 |
180 | #define EVMETHOD_SELECT 1 |
172 | #define EVMETHOD_EPOLL 2 |
181 | #define EVMETHOD_POLL 2 |
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182 | #define EVMETHOD_EPOLL 4 |
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183 | #define EVMETHOD_KQUEUE 8 |
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184 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
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185 | #define EVMETHOD_PORT 32 /* NYI */ |
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186 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
173 | #if EV_PROTOTYPES |
187 | #if EV_PROTOTYPES |
174 | extern int ev_method; |
188 | extern int ev_method; |
175 | int ev_init (int flags); /* returns ev_method */ |
189 | int ev_init (int methods); /* returns ev_method */ |
176 | int ev_version_major (void); |
190 | int ev_version_major (void); |
177 | int ev_version_minor (void); |
191 | int ev_version_minor (void); |
178 | |
192 | |
179 | /* these three calls are suitable for plugging into pthread_atfork */ |
193 | /* these three calls are suitable for plugging into pthread_atfork */ |
180 | void ev_fork_prepare (void); |
194 | void ev_fork_prepare (void); |
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196 | void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
210 | void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
197 | #endif |
211 | #endif |
198 | |
212 | |
199 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
213 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
200 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
214 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
201 | #define ev_watcher_init(ev,cb_) do { (ev)->active = 0; (ev)->pending = 0; (ev)->cb = (cb_); } while (0) |
215 | #define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) |
202 | |
216 | |
203 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
217 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
204 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
218 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
205 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
219 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
206 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
220 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
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216 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
230 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
217 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
231 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
218 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
232 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
219 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
233 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
220 | |
234 | |
221 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
235 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
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236 | #define ev_set_priority(ev,pri) (ev)->priority = pri |
222 | |
237 | |
223 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
238 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
224 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
239 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
225 | #if EV_PROTOTYPES |
240 | #if EV_PROTOTYPES |
226 | void ev_io_start (struct ev_io *w); |
241 | void ev_io_start (struct ev_io *w); |