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33 | #include <stdlib.h> |
33 | #include <stdlib.h> |
34 | #include <sys/time.h> |
34 | #include <sys/time.h> |
35 | |
35 | |
36 | #include "event.h" |
36 | #include "event.h" |
37 | |
37 | |
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38 | #define dLOOPev |
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39 | #define dLOOPbase |
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40 | |
38 | struct event_base |
41 | struct event_base |
39 | { |
42 | { |
40 | int dummy; |
43 | int dummy; |
41 | }; |
44 | }; |
42 | |
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43 | static int x_actives; |
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44 | |
45 | |
45 | static struct event_base x_base, *x_cur; |
46 | static struct event_base x_base, *x_cur; |
46 | |
47 | |
47 | static void |
48 | static void |
48 | tv_set (struct timeval *tv, ev_tstamp at) |
49 | tv_set (struct timeval *tv, ev_tstamp at) |
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108 | } |
109 | } |
109 | |
110 | |
110 | static void |
111 | static void |
111 | x_cb (struct event *ev, int revents) |
112 | x_cb (struct event *ev, int revents) |
112 | { |
113 | { |
113 | if (ev->ev_events & EV_SIGNAL) |
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114 | { |
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115 | /* sig */ |
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116 | if (ev_is_active (&ev->iosig.sig)) |
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117 | { |
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118 | ev_signal_stop (&ev->iosig.sig); |
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119 | --x_actives; |
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120 | } |
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121 | } |
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122 | else |
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123 | { |
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124 | /* io */ |
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125 | if (!(ev->ev_events & EV_PERSIST) && ev_is_active (&ev->iosig.io)) |
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126 | { |
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127 | ev_io_stop (&ev->iosig.io); |
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128 | --x_actives; |
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129 | } |
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130 | } |
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131 | |
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132 | revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; |
114 | revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; |
133 | |
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134 | if (revents & EV_TIMEOUT) |
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135 | --x_actives; |
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136 | |
115 | |
137 | ev->ev_res = revents; |
116 | ev->ev_res = revents; |
138 | ev->ev_callback (ev->ev_fd, revents, ev->ev_arg); |
117 | ev->ev_callback (ev->ev_fd, revents, ev->ev_arg); |
139 | } |
118 | } |
140 | |
119 | |
141 | static void |
120 | static void |
142 | x_cb_io (struct ev_io *w, int revents) |
121 | x_cb_sig (EV_P_ struct ev_signal *w, int revents) |
143 | { |
122 | { |
144 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.io)), revents); |
123 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.sig)), revents); |
145 | } |
124 | } |
146 | |
125 | |
147 | static void |
126 | static void |
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127 | x_cb_io (EV_P_ struct ev_io *w, int revents) |
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128 | { |
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129 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io)); |
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130 | |
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131 | if (!(ev->ev_events & EV_PERSIST) && ev_is_active (w)) |
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132 | ev_io_stop (w); |
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133 | |
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134 | x_cb (ev, revents); |
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135 | } |
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136 | |
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137 | static void |
148 | x_cb_to (struct ev_timer *w, int revents) |
138 | x_cb_to (EV_P_ struct ev_timer *w, int revents) |
149 | { |
139 | { |
150 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, to)), revents); |
140 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, to)), revents); |
151 | } |
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152 | |
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153 | static void |
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154 | x_cb_sig (struct ev_signal *w, int revents) |
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155 | { |
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156 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.sig)), revents); |
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157 | } |
141 | } |
158 | |
142 | |
159 | void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) |
143 | void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) |
160 | { |
144 | { |
161 | if (events & EV_SIGNAL) |
145 | if (events & EV_SIGNAL) |
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179 | return event_base_once (x_cur, fd, events, cb, arg, tv); |
163 | return event_base_once (x_cur, fd, events, cb, arg, tv); |
180 | } |
164 | } |
181 | |
165 | |
182 | int event_add (struct event *ev, struct timeval *tv) |
166 | int event_add (struct event *ev, struct timeval *tv) |
183 | { |
167 | { |
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168 | dLOOPev; |
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169 | |
184 | /* disable all watchers */ |
170 | /* disable all watchers */ |
185 | event_del (ev); |
171 | event_del (ev); |
186 | |
172 | |
187 | if (ev->ev_events & EV_SIGNAL) |
173 | if (ev->ev_events & EV_SIGNAL) |
188 | { |
174 | { |
189 | ev_signal_set (&ev->iosig.sig, ev->ev_fd); |
175 | ev_signal_set (&ev->iosig.sig, ev->ev_fd); |
190 | ev_signal_start (&ev->iosig.sig); |
176 | ev_signal_start (EV_A_ &ev->iosig.sig); |
191 | ++x_actives; |
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192 | } |
177 | } |
193 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
178 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
194 | { |
179 | { |
195 | ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); |
180 | ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); |
196 | ev_io_start (&ev->iosig.io); |
181 | ev_io_start (EV_A_ &ev->iosig.io); |
197 | ++x_actives; |
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198 | } |
182 | } |
199 | |
183 | |
200 | if (tv) |
184 | if (tv) |
201 | { |
185 | { |
202 | ev_timer_set (&ev->to, tv_get (tv), 0.); |
186 | ev_timer_set (&ev->to, tv_get (tv), 0.); |
203 | ev_timer_start (&ev->to); |
187 | ev_timer_start (EV_A_ &ev->to); |
204 | ++x_actives; |
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205 | } |
188 | } |
206 | |
189 | |
207 | return 0; |
190 | return 0; |
208 | } |
191 | } |
209 | |
192 | |
210 | int event_del (struct event *ev) |
193 | int event_del (struct event *ev) |
211 | { |
194 | { |
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195 | dLOOPev; |
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196 | |
212 | if (ev->ev_events & EV_SIGNAL) |
197 | if (ev->ev_events & EV_SIGNAL) |
213 | { |
198 | { |
214 | /* sig */ |
199 | /* sig */ |
215 | if (ev_is_active (&ev->iosig.sig)) |
200 | if (ev_is_active (&ev->iosig.sig)) |
216 | { |
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217 | ev_signal_stop (&ev->iosig.sig); |
201 | ev_signal_stop (EV_A_ &ev->iosig.sig); |
218 | --x_actives; |
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219 | } |
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220 | } |
202 | } |
221 | else |
203 | else |
222 | { |
204 | { |
223 | /* io */ |
205 | /* io */ |
224 | if (ev_is_active (&ev->iosig.io)) |
206 | if (ev_is_active (&ev->iosig.io)) |
225 | { |
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226 | ev_io_stop (&ev->iosig.io); |
207 | ev_io_stop (EV_A_ &ev->iosig.io); |
227 | --x_actives; |
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228 | } |
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229 | } |
208 | } |
230 | |
209 | |
231 | if (ev_is_active (&ev->to)) |
210 | if (ev_is_active (&ev->to)) |
232 | { |
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233 | ev_timer_stop (&ev->to); |
211 | ev_timer_stop (EV_A_ &ev->to); |
234 | --x_actives; |
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235 | } |
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236 | |
212 | |
237 | return 0; |
213 | return 0; |
238 | } |
214 | } |
239 | |
215 | |
240 | int event_pending (struct event *ev, short events, struct timeval *tv) |
216 | int event_pending (struct event *ev, short events, struct timeval *tv) |
241 | { |
217 | { |
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218 | dLOOPev; |
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219 | |
242 | short revents = 0; |
220 | short revents = 0; |
243 | |
221 | |
244 | if (ev->ev_events & EV_SIGNAL) |
222 | if (ev->ev_events & EV_SIGNAL) |
245 | { |
223 | { |
246 | /* sig */ |
224 | /* sig */ |
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257 | if (ev->to.pending) |
235 | if (ev->to.pending) |
258 | { |
236 | { |
259 | revents |= EV_TIMEOUT; |
237 | revents |= EV_TIMEOUT; |
260 | |
238 | |
261 | if (tv) |
239 | if (tv) |
262 | tv_set (tv, ev_now); /* not sure if this is right :) */ |
240 | tv_set (tv, ev_now (EV_A)); /* not sure if this is right :) */ |
263 | } |
241 | } |
264 | |
242 | |
265 | return events & revents; |
243 | return events & revents; |
266 | } |
244 | } |
267 | |
245 | |
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284 | return 0; |
262 | return 0; |
285 | } |
263 | } |
286 | |
264 | |
287 | int event_base_loop (struct event_base *base, int flags) |
265 | int event_base_loop (struct event_base *base, int flags) |
288 | { |
266 | { |
289 | do |
267 | dLOOPbase; |
290 | { |
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291 | ev_loop (flags | EVLOOP_ONESHOT); |
268 | ev_loop (EV_A_ flags | EVLOOP_ONESHOT); |
292 | } |
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293 | while (!(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) && x_actives && !ev_loop_done); |
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294 | |
269 | |
295 | return 0; |
270 | return 0; |
296 | } |
271 | } |
297 | |
272 | |
298 | int event_base_dispatch (struct event_base *base) |
273 | int event_base_dispatch (struct event_base *base) |
299 | { |
274 | { |
300 | return event_base_loop (base, 0); |
275 | return event_base_loop (base, 0); |
301 | } |
276 | } |
302 | |
277 | |
303 | static void |
278 | static void |
304 | x_loopexit_cb (int revents, void *arg) |
279 | x_loopexit_cb (EV_P_ int revents, void *arg) |
305 | { |
280 | { |
306 | ev_loop_done = 2; |
281 | ev_unloop (EV_A_ 2); |
307 | } |
282 | } |
308 | |
283 | |
309 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
284 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
310 | { |
285 | { |
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286 | dLOOPbase; |
311 | ev_tstamp after = tv_get (tv); |
287 | ev_tstamp after = tv_get (tv); |
312 | |
288 | |
313 | ev_once (-1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base); |
289 | ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base); |
314 | |
290 | |
315 | return -1; |
291 | return -1; |
316 | } |
292 | } |
317 | |
293 | |
318 | struct x_once |
294 | struct x_once |
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331 | free (once); |
307 | free (once); |
332 | } |
308 | } |
333 | |
309 | |
334 | int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
310 | int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
335 | { |
311 | { |
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312 | dLOOPbase; |
336 | struct x_once *once = malloc (sizeof (struct x_once)); |
313 | struct x_once *once = malloc (sizeof (struct x_once)); |
337 | |
314 | |
338 | if (!once) |
315 | if (!once) |
339 | return -1; |
316 | return -1; |
340 | |
317 | |
341 | once->fd = fd; |
318 | once->fd = fd; |
342 | once->cb = cb; |
319 | once->cb = cb; |
343 | once->arg = arg; |
320 | once->arg = arg; |
344 | |
321 | |
345 | ev_once (fd, events & (EV_READ | EV_WRITE), tv_get (tv), x_once_cb, (void *)once); |
322 | ev_once (EV_A_ fd, events & (EV_READ | EV_WRITE), tv_get (tv), x_once_cb, (void *)once); |
346 | |
323 | |
347 | return 0; |
324 | return 0; |
348 | } |
325 | } |
349 | |
326 | |
350 | int event_base_priority_init (struct event_base *base, int npri) |
327 | int event_base_priority_init (struct event_base *base, int npri) |
351 | { |
328 | { |
352 | return 0; |
329 | dLOOPbase; |
353 | } |
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354 | |
330 | |
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331 | return 0; |
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332 | } |
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333 | |