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28 | */ |
28 | */ |
29 | |
29 | |
30 | #ifndef EV_H |
30 | #ifndef EV_H |
31 | #define EV_H |
31 | #define EV_H |
32 | |
32 | |
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33 | #ifdef __cplusplus |
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34 | extern "C" { |
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35 | #endif |
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36 | |
33 | typedef double ev_tstamp; |
37 | typedef double ev_tstamp; |
34 | |
38 | |
35 | /* eventmask, revents, events... */ |
39 | /* eventmask, revents, events... */ |
36 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
40 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
37 | #define EV_NONE 0x00 |
41 | #define EV_NONE 0x00 |
38 | #define EV_READ 0x01 |
42 | #define EV_READ 0x01 |
39 | #define EV_WRITE 0x02 |
43 | #define EV_WRITE 0x02 |
40 | #define EV_REIFY 0x04 /* private */ |
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41 | #define EV_TIMEOUT 0x000100 |
44 | #define EV_TIMEOUT 0x000100 |
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45 | #define EV_PERIODIC 0x000200 |
42 | #define EV_SIGNAL 0x000200 |
46 | #define EV_SIGNAL 0x000400 |
43 | #define EV_IDLE 0x000400 |
47 | #define EV_IDLE 0x000800 |
44 | #define EV_CHECK 0x000800 |
48 | #define EV_CHECK 0x001000 |
45 | #define EV_PREPARE 0x001000 |
49 | #define EV_PREPARE 0x002000 |
46 | #define EV_CHILD 0x002000 |
50 | #define EV_CHILD 0x004000 |
47 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
51 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
48 | |
52 | |
49 | /* can be used to add custom fields to all watchers */ |
53 | /* can be used to add custom fields to all watchers */ |
50 | #ifndef EV_COMMON |
54 | #ifndef EV_COMMON |
51 | # define EV_COMMON void *data |
55 | # define EV_COMMON void *data |
52 | #endif |
56 | #endif |
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93 | struct ev_watcher_time { |
97 | struct ev_watcher_time { |
94 | EV_WATCHER_TIME (ev_watcher_time); |
98 | EV_WATCHER_TIME (ev_watcher_time); |
95 | }; |
99 | }; |
96 | |
100 | |
97 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
101 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
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102 | /* revent EV_TIMEOUT */ |
98 | struct ev_timer |
103 | struct ev_timer |
99 | { |
104 | { |
100 | EV_WATCHER_TIME (ev_timer); |
105 | EV_WATCHER_TIME (ev_timer); |
101 | |
106 | |
102 | ev_tstamp repeat; /* rw */ |
107 | ev_tstamp repeat; /* rw */ |
103 | }; |
108 | }; |
104 | |
109 | |
105 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
110 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
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111 | /* revent EV_PERIODIC */ |
106 | struct ev_periodic |
112 | struct ev_periodic |
107 | { |
113 | { |
108 | EV_WATCHER_TIME (ev_periodic); |
114 | EV_WATCHER_TIME (ev_periodic); |
109 | |
115 | |
110 | ev_tstamp interval; /* rw */ |
116 | ev_tstamp interval; /* rw */ |
111 | }; |
117 | }; |
112 | |
118 | |
113 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
119 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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120 | /* revent EV_READ, EV_WRITE */ |
114 | struct ev_io |
121 | struct ev_io |
115 | { |
122 | { |
116 | EV_WATCHER_LIST (ev_io); |
123 | EV_WATCHER_LIST (ev_io); |
117 | |
124 | |
118 | int fd; /* ro */ |
125 | int fd; /* ro */ |
119 | int events; /* ro */ |
126 | int events; /* ro */ |
120 | }; |
127 | }; |
121 | |
128 | |
122 | /* invoked when the given signal has been received */ |
129 | /* invoked when the given signal has been received */ |
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130 | /* revent EV_SIGNAL */ |
123 | struct ev_signal |
131 | struct ev_signal |
124 | { |
132 | { |
125 | EV_WATCHER_LIST (ev_signal); |
133 | EV_WATCHER_LIST (ev_signal); |
126 | |
134 | |
127 | int signum; /* ro */ |
135 | int signum; /* ro */ |
128 | }; |
136 | }; |
129 | |
137 | |
130 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
138 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
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139 | /* revent EV_IDLE */ |
131 | struct ev_idle |
140 | struct ev_idle |
132 | { |
141 | { |
133 | EV_WATCHER (ev_idle); |
142 | EV_WATCHER (ev_idle); |
134 | }; |
143 | }; |
135 | |
144 | |
136 | /* invoked for each run of the mainloop, just before the blocking call */ |
145 | /* invoked for each run of the mainloop, just before the blocking call */ |
137 | /* you can still change events in any way you like */ |
146 | /* you can still change events in any way you like */ |
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147 | /* revent EV_PREPARE */ |
138 | struct ev_prepare |
148 | struct ev_prepare |
139 | { |
149 | { |
140 | EV_WATCHER (ev_prepare); |
150 | EV_WATCHER (ev_prepare); |
141 | }; |
151 | }; |
142 | |
152 | |
143 | /* invoked for each run of the mainloop, just after the blocking call */ |
153 | /* invoked for each run of the mainloop, just after the blocking call */ |
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154 | /* revent EV_CHECK */ |
144 | struct ev_check |
155 | struct ev_check |
145 | { |
156 | { |
146 | EV_WATCHER (ev_check); |
157 | EV_WATCHER (ev_check); |
147 | }; |
158 | }; |
148 | |
159 | |
149 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
160 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
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161 | /* revent EV_CHILD */ |
150 | struct ev_child |
162 | struct ev_child |
151 | { |
163 | { |
152 | EV_WATCHER_LIST (ev_child); |
164 | EV_WATCHER_LIST (ev_child); |
153 | |
165 | |
154 | int pid; /* ro */ |
166 | int pid; /* ro */ |
155 | int status; /* rw, holds the exit status, use the macros from sys/wait.h */ |
167 | int status; /* rw, holds the exit status, use the macros from sys/wait.h */ |
156 | }; |
168 | }; |
157 | |
169 | |
158 | #define EVMETHOD_NONE 0 |
170 | #define EVMETHOD_AUTO 0 /* consults environment */ |
159 | #define EVMETHOD_SELECT 1 |
171 | #define EVMETHOD_SELECT 1 |
160 | #define EVMETHOD_EPOLL 2 |
172 | #define EVMETHOD_POLL 2 |
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173 | #define EVMETHOD_EPOLL 4 |
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174 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
161 | #if EV_PROTOTYPES |
175 | #if EV_PROTOTYPES |
162 | extern int ev_method; |
176 | extern int ev_method; |
163 | int ev_init (int flags); /* returns ev_method */ |
177 | int ev_init (int methods); /* returns ev_method */ |
164 | int ev_version_major (void); |
178 | int ev_version_major (void); |
165 | int ev_version_minor (void); |
179 | int ev_version_minor (void); |
166 | |
180 | |
167 | /* these three calls are suitable for plugging into pthread_atfork */ |
181 | /* these three calls are suitable for plugging into pthread_atfork */ |
168 | void ev_prefork (void); |
182 | void ev_fork_prepare (void); |
169 | void ev_postfork_parent (void); |
183 | void ev_fork_parent (void); |
170 | void ev_postfork_child (void); |
184 | void ev_fork_child (void); |
171 | |
185 | |
172 | extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ |
186 | extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ |
173 | ev_tstamp ev_time (void); |
187 | ev_tstamp ev_time (void); |
174 | #endif |
188 | #endif |
175 | |
189 | |
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235 | |
249 | |
236 | void ev_child_start (struct ev_child *w); |
250 | void ev_child_start (struct ev_child *w); |
237 | void ev_child_stop (struct ev_child *w); |
251 | void ev_child_stop (struct ev_child *w); |
238 | #endif |
252 | #endif |
239 | |
253 | |
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254 | #ifdef __cplusplus |
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255 | } |
240 | #endif |
256 | #endif |
241 | |
257 | |
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258 | #endif |
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259 | |