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31 | #define EV_H |
31 | #define EV_H |
32 | |
32 | |
33 | typedef double ev_tstamp; |
33 | typedef double ev_tstamp; |
34 | |
34 | |
35 | /* eventmask, revents, events... */ |
35 | /* eventmask, revents, events... */ |
36 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
36 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
37 | #define EV_NONE 0x00 |
37 | #define EV_NONE 0x00 |
38 | #define EV_READ 0x01 |
38 | #define EV_READ 0x01 |
39 | #define EV_WRITE 0x02 |
39 | #define EV_WRITE 0x02 |
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40 | #define EV_REIFY 0x04 /* private */ |
40 | #define EV_TIMEOUT 0x04 |
41 | #define EV_TIMEOUT 0x000100 |
41 | #define EV_SIGNAL 0x08 |
42 | #define EV_SIGNAL 0x000200 |
42 | #define EV_IDLE 0x10 |
43 | #define EV_IDLE 0x000400 |
43 | #define EV_CHECK 0x20 |
44 | #define EV_CHECK 0x000800 |
44 | #define EV_PREPARE 0x40 |
45 | #define EV_PREPARE 0x001000 |
45 | #define EV_CHILD 0x80 |
46 | #define EV_CHILD 0x002000 |
46 | #define EV_ERROR (0xff|0x8000) |
47 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
47 | |
48 | |
48 | /* can be used to add custom fields to all watchers */ |
49 | /* can be used to add custom fields to all watchers */ |
49 | #ifndef EV_COMMON |
50 | #ifndef EV_COMMON |
50 | # define EV_COMMON void *data |
51 | # define EV_COMMON void *data |
51 | #endif |
52 | #endif |
52 | #ifndef EV_PROTOTYPES |
53 | #ifndef EV_PROTOTYPES |
53 | # define EV_PROTOTYPES 1 |
54 | # define EV_PROTOTYPES 1 |
54 | #endif |
55 | #endif |
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56 | |
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57 | #define EV_VERSION_MAJOR 1 |
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58 | #define EV_VERSION_MINOR 1 |
55 | |
59 | |
56 | /* |
60 | /* |
57 | * struct member types: |
61 | * struct member types: |
58 | * private: you can look at them, but not change them, and they might not mean anything to you. |
62 | * private: you can look at them, but not change them, and they might not mean anything to you. |
59 | * ro: can be read anytime, but only changed when the watcher isn't active |
63 | * ro: can be read anytime, but only changed when the watcher isn't active |
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146 | struct ev_child |
150 | struct ev_child |
147 | { |
151 | { |
148 | EV_WATCHER_LIST (ev_child); |
152 | EV_WATCHER_LIST (ev_child); |
149 | |
153 | |
150 | int pid; /* ro */ |
154 | int pid; /* ro */ |
151 | int status; /* holds the exit status, use the macros from sys/wait.h */ |
155 | int status; /* rw, holds the exit status, use the macros from sys/wait.h */ |
152 | }; |
156 | }; |
153 | |
157 | |
154 | #define EVMETHOD_NONE 0 |
158 | #define EVMETHOD_NONE 0 |
155 | #define EVMETHOD_SELECT 1 |
159 | #define EVMETHOD_SELECT 1 |
156 | #define EVMETHOD_EPOLL 2 |
160 | #define EVMETHOD_EPOLL 2 |
157 | #if EV_PROTOTYPES |
161 | #if EV_PROTOTYPES |
158 | extern int ev_method; |
162 | extern int ev_method; |
159 | int ev_init (int flags); /* returns ev_method */ |
163 | int ev_init (int flags); /* returns ev_method */ |
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164 | int ev_version_major (void); |
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165 | int ev_version_minor (void); |
160 | |
166 | |
161 | /* these three calls are suitable for plugging into pthread_atfork */ |
167 | /* these three calls are suitable for plugging into pthread_atfork */ |
162 | void ev_prefork (void); |
168 | void ev_prefork (void); |
163 | void ev_postfork_parent (void); |
169 | void ev_postfork_parent (void); |
164 | void ev_postfork_child (void); |
170 | void ev_postfork_child (void); |
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177 | /* if timeout is < 0, do wait indefinitely */ |
183 | /* if timeout is < 0, do wait indefinitely */ |
178 | void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
184 | void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
179 | #endif |
185 | #endif |
180 | |
186 | |
181 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
187 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
182 | /* either use evw_init + evXXX_set, or the evXXX_init macro, below, to first initialise a watcher */ |
188 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
183 | #define evw_init(ev,cb_) do { (ev)->active = 0; (ev)->pending = 0; (ev)->cb = (cb_); } while (0) |
189 | #define ev_watcher_init(ev,cb_) do { (ev)->active = 0; (ev)->pending = 0; (ev)->cb = (cb_); } while (0) |
184 | |
190 | |
185 | #define evio_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
191 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
186 | #define evtimer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
192 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
187 | #define evperiodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
193 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
188 | #define evsignal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
194 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
189 | #define evidle_set(ev) /* nop, yes, this is a serious in-joke */ |
195 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
190 | #define evprepare_set(ev) /* nop, yes, this is a serious in-joke */ |
196 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
191 | #define evcheck_set(ev) /* nop, yes, this is a serious in-joke */ |
197 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
192 | #define evchild_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
198 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
193 | |
199 | |
194 | #define evio_init(ev,cb,fd,events) do { evw_init ((ev), (cb)); evio_set ((ev),(fd),(events)); } while (0) |
200 | #define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
195 | #define evtimer_init(ev,cb,after,repeat) do { evw_init ((ev), (cb)); evtimer_set ((ev),(after),(repeat)); } while (0) |
201 | #define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
196 | #define evperiodic_init(ev,cb,at,interval) do { evw_init ((ev), (cb)); evperiodic_set ((ev),(at),(interval)); } while (0) |
202 | #define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0) |
197 | #define evsignal_init(ev,cb,signum) do { evw_init ((ev), (cb)); evsignal_set ((ev), (signum)); } while (0) |
203 | #define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
198 | #define evidle_init(ev,cb) do { evw_init ((ev), (cb)); evidle_set ((ev)); } while (0) |
204 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
199 | #define evprepare_init(ev,cb) do { evw_init ((ev), (cb)); evprepare_set ((ev)); } while (0) |
205 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
200 | #define evcheck_init(ev,cb) do { evw_init ((ev), (cb)); evcheck_set ((ev)); } while (0) |
206 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
201 | #define evchild_init(ev,cb,pid) do { evw_init ((ev), (cb)); evchild_set ((ev),(pid)); } while (0) |
207 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
202 | |
208 | |
203 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
209 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
204 | |
210 | |
205 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
211 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
206 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
212 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
207 | #if EV_PROTOTYPES |
213 | #if EV_PROTOTYPES |
208 | void evio_start (struct ev_io *w); |
214 | void ev_io_start (struct ev_io *w); |
209 | void evio_stop (struct ev_io *w); |
215 | void ev_io_stop (struct ev_io *w); |
210 | |
216 | |
211 | void evtimer_start (struct ev_timer *w); |
217 | void ev_timer_start (struct ev_timer *w); |
212 | void evtimer_stop (struct ev_timer *w); |
218 | void ev_timer_stop (struct ev_timer *w); |
213 | void evtimer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
219 | void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
214 | |
220 | |
215 | void evperiodic_start (struct ev_periodic *w); |
221 | void ev_periodic_start (struct ev_periodic *w); |
216 | void evperiodic_stop (struct ev_periodic *w); |
222 | void ev_periodic_stop (struct ev_periodic *w); |
217 | |
223 | |
218 | void evsignal_start (struct ev_signal *w); |
224 | void ev_signal_start (struct ev_signal *w); |
219 | void evsignal_stop (struct ev_signal *w); |
225 | void ev_signal_stop (struct ev_signal *w); |
220 | |
226 | |
221 | void evidle_start (struct ev_idle *w); |
227 | void ev_idle_start (struct ev_idle *w); |
222 | void evidle_stop (struct ev_idle *w); |
228 | void ev_idle_stop (struct ev_idle *w); |
223 | |
229 | |
224 | void evprepare_start (struct ev_prepare *w); |
230 | void ev_prepare_start (struct ev_prepare *w); |
225 | void evprepare_stop (struct ev_prepare *w); |
231 | void ev_prepare_stop (struct ev_prepare *w); |
226 | |
232 | |
227 | void evcheck_start (struct ev_check *w); |
233 | void ev_check_start (struct ev_check *w); |
228 | void evcheck_stop (struct ev_check *w); |
234 | void ev_check_stop (struct ev_check *w); |
229 | |
235 | |
230 | void evchild_start (struct ev_child *w); |
236 | void ev_child_start (struct ev_child *w); |
231 | void evchild_stop (struct ev_child *w); |
237 | void ev_child_stop (struct ev_child *w); |
232 | #endif |
238 | #endif |
233 | |
239 | |
234 | #endif |
240 | #endif |
235 | |
241 | |