… | |
… | |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
31 | |
31 | |
32 | #include <stddef.h> |
32 | #include <stddef.h> |
33 | #include <stdlib.h> |
33 | #include <stdlib.h> |
|
|
34 | #include <assert.h> |
|
|
35 | |
|
|
36 | #ifndef WIN32 |
34 | #include <sys/time.h> |
37 | # include <sys/time.h> |
|
|
38 | #endif |
35 | |
39 | |
|
|
40 | #ifdef EV_EVENT_H |
|
|
41 | # include EV_EVENT_H |
|
|
42 | #else |
36 | #include "event.h" |
43 | # include "event.h" |
|
|
44 | #endif |
37 | |
45 | |
|
|
46 | #if EV_MULTIPLICITY |
|
|
47 | # define dLOOPev struct ev_loop *loop = (struct ev_loop *)ev->ev_base |
|
|
48 | # define dLOOPbase struct ev_loop *loop = (struct ev_loop *)base |
|
|
49 | #else |
38 | #define dLOOPev |
50 | # define dLOOPev |
39 | #define dLOOPbase |
51 | # define dLOOPbase |
|
|
52 | #endif |
40 | |
53 | |
|
|
54 | /* never accessed, will always be cast from/to ev_loop */ |
41 | struct event_base |
55 | struct event_base |
42 | { |
56 | { |
43 | int dummy; |
57 | int dummy; |
44 | }; |
58 | }; |
45 | |
59 | |
46 | static struct event_base x_base, *x_cur; |
60 | static struct event_base *x_cur; |
47 | |
61 | |
48 | static void |
62 | static void |
49 | tv_set (struct timeval *tv, ev_tstamp at) |
63 | tv_set (struct timeval *tv, ev_tstamp at) |
50 | { |
64 | { |
51 | tv->tv_sec = (long)at; |
65 | tv->tv_sec = (long)at; |
… | |
… | |
73 | return "libev"; |
87 | return "libev"; |
74 | } |
88 | } |
75 | |
89 | |
76 | void *event_init (void) |
90 | void *event_init (void) |
77 | { |
91 | { |
78 | if (!x_cur && ev_init (0)) |
92 | #if EV_MULTIPLICITY |
79 | return x_cur = &x_base; |
93 | if (x_cur) |
|
|
94 | x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO); |
|
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95 | else |
|
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96 | x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO); |
|
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97 | #else |
|
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98 | assert (("multiple event bases not supported when not compiled with EV_MULTIPLICITY", !x_cur)); |
80 | |
99 | |
|
|
100 | x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO); |
|
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101 | #endif |
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102 | |
81 | return 0; |
103 | return x_cur; |
82 | } |
104 | } |
83 | |
105 | |
84 | void event_base_free (struct event_base *base) |
106 | void event_base_free (struct event_base *base) |
85 | { |
107 | { |
86 | /* nop */ |
108 | dLOOPbase; |
|
|
109 | |
|
|
110 | #if EV_MULTIPLICITY |
|
|
111 | if (ev_default_loop (EVFLAG_AUTO) != loop) |
|
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112 | ev_loop_destroy (loop); |
|
|
113 | #endif |
87 | } |
114 | } |
88 | |
115 | |
89 | int event_dispatch (void) |
116 | int event_dispatch (void) |
90 | { |
117 | { |
91 | return event_base_dispatch (x_cur); |
118 | return event_base_dispatch (x_cur); |
… | |
… | |
112 | x_cb (struct event *ev, int revents) |
139 | x_cb (struct event *ev, int revents) |
113 | { |
140 | { |
114 | revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; |
141 | revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; |
115 | |
142 | |
116 | ev->ev_res = revents; |
143 | ev->ev_res = revents; |
117 | ev->ev_callback (ev->ev_fd, revents, ev->ev_arg); |
144 | ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg); |
118 | } |
145 | } |
119 | |
146 | |
120 | static void |
147 | static void |
121 | x_cb_sig (EV_P_ struct ev_signal *w, int revents) |
148 | x_cb_sig (EV_P_ struct ev_signal *w, int revents) |
122 | { |
149 | { |
123 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.sig)), revents); |
150 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig)); |
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151 | |
|
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152 | if (revents & EV_ERROR) |
|
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153 | event_del (ev); |
|
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154 | |
|
|
155 | x_cb (ev, revents); |
124 | } |
156 | } |
125 | |
157 | |
126 | static void |
158 | static void |
127 | x_cb_io (EV_P_ struct ev_io *w, int revents) |
159 | x_cb_io (EV_P_ struct ev_io *w, int revents) |
128 | { |
160 | { |
129 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io)); |
161 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io)); |
130 | |
162 | |
|
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163 | if (revents & EV_ERROR) |
|
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164 | event_del (ev); |
131 | if (!(ev->ev_events & EV_PERSIST) && ev_is_active (w)) |
165 | else if (!(ev->ev_events & EV_PERSIST) && ev_is_active (w)) |
|
|
166 | { |
132 | ev_io_stop (w); |
167 | ev_io_stop (EV_A_ w); |
|
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168 | ev->ev_flags &= ~EVLIST_INSERTED; |
|
|
169 | } |
133 | |
170 | |
134 | x_cb (ev, revents); |
171 | x_cb (ev, revents); |
135 | } |
172 | } |
136 | |
173 | |
137 | static void |
174 | static void |
138 | x_cb_to (EV_P_ struct ev_timer *w, int revents) |
175 | x_cb_to (EV_P_ struct ev_timer *w, int revents) |
139 | { |
176 | { |
140 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, to)), revents); |
177 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to)); |
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178 | |
|
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179 | event_del (ev); |
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180 | |
|
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181 | x_cb (ev, revents); |
141 | } |
182 | } |
142 | |
183 | |
143 | void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) |
184 | void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) |
144 | { |
185 | { |
145 | if (events & EV_SIGNAL) |
186 | if (events & EV_SIGNAL) |
146 | ev_watcher_init (&ev->iosig.sig, x_cb_sig); |
187 | ev_init (&ev->iosig.sig, x_cb_sig); |
147 | else |
188 | else |
148 | ev_watcher_init (&ev->iosig.io, x_cb_io); |
189 | ev_init (&ev->iosig.io, x_cb_io); |
149 | |
190 | |
150 | ev_watcher_init (&ev->to, x_cb_to); |
191 | ev_init (&ev->to, x_cb_to); |
151 | |
192 | |
152 | ev->ev_base = x_cur; |
193 | ev->ev_base = x_cur; /* not threadsafe, but its like libevent works */ |
153 | ev->ev_fd = fd; |
194 | ev->ev_fd = fd; |
154 | ev->ev_events = events; |
195 | ev->ev_events = events; |
155 | ev->ev_pri = 0; |
196 | ev->ev_pri = 0; |
156 | ev->ev_callback = cb; |
197 | ev->ev_callback = cb; |
157 | ev->ev_arg = arg; |
198 | ev->ev_arg = arg; |
158 | ev->ev_res = 0; |
199 | ev->ev_res = 0; |
|
|
200 | ev->ev_flags = EVLIST_INIT; |
159 | } |
201 | } |
160 | |
202 | |
161 | int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
203 | int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
162 | { |
204 | { |
163 | return event_base_once (x_cur, fd, events, cb, arg, tv); |
205 | return event_base_once (x_cur, fd, events, cb, arg, tv); |
… | |
… | |
165 | |
207 | |
166 | int event_add (struct event *ev, struct timeval *tv) |
208 | int event_add (struct event *ev, struct timeval *tv) |
167 | { |
209 | { |
168 | dLOOPev; |
210 | dLOOPev; |
169 | |
211 | |
170 | /* disable all watchers */ |
|
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171 | event_del (ev); |
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172 | |
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173 | if (ev->ev_events & EV_SIGNAL) |
212 | if (ev->ev_events & EV_SIGNAL) |
174 | { |
213 | { |
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214 | if (!ev_is_active (&ev->iosig.sig)) |
|
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215 | { |
175 | ev_signal_set (&ev->iosig.sig, ev->ev_fd); |
216 | ev_signal_set (&ev->iosig.sig, ev->ev_fd); |
176 | ev_signal_start (EV_A_ &ev->iosig.sig); |
217 | ev_signal_start (EV_A_ &ev->iosig.sig); |
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218 | |
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219 | ev->ev_flags |= EVLIST_SIGNAL; |
|
|
220 | } |
177 | } |
221 | } |
178 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
222 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
179 | { |
223 | { |
|
|
224 | if (!ev_is_active (&ev->iosig.io)) |
|
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225 | { |
180 | ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); |
226 | ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); |
181 | ev_io_start (EV_A_ &ev->iosig.io); |
227 | ev_io_start (EV_A_ &ev->iosig.io); |
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228 | |
|
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229 | ev->ev_flags |= EVLIST_INSERTED; |
|
|
230 | } |
182 | } |
231 | } |
183 | |
232 | |
184 | if (tv) |
233 | if (tv) |
185 | { |
234 | { |
186 | ev_timer_set (&ev->to, tv_get (tv), 0.); |
235 | ev->to.repeat = tv_get (tv); |
|
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236 | ev_timer_again (EV_A_ &ev->to); |
|
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237 | ev->ev_flags |= EVLIST_TIMEOUT; |
|
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238 | } |
|
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239 | else |
|
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240 | if (ev_is_active (&ev->to)) |
187 | ev_timer_start (EV_A_ &ev->to); |
241 | ev_timer_stop (EV_A_ &ev->to); |
188 | } |
242 | |
|
|
243 | ev->ev_flags |= EVLIST_ACTIVE; |
189 | |
244 | |
190 | return 0; |
245 | return 0; |
191 | } |
246 | } |
192 | |
247 | |
193 | int event_del (struct event *ev) |
248 | int event_del (struct event *ev) |
… | |
… | |
198 | { |
253 | { |
199 | /* sig */ |
254 | /* sig */ |
200 | if (ev_is_active (&ev->iosig.sig)) |
255 | if (ev_is_active (&ev->iosig.sig)) |
201 | ev_signal_stop (EV_A_ &ev->iosig.sig); |
256 | ev_signal_stop (EV_A_ &ev->iosig.sig); |
202 | } |
257 | } |
203 | else |
258 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
204 | { |
259 | { |
205 | /* io */ |
260 | /* io */ |
206 | if (ev_is_active (&ev->iosig.io)) |
261 | if (ev_is_active (&ev->iosig.io)) |
207 | ev_io_stop (EV_A_ &ev->iosig.io); |
262 | ev_io_stop (EV_A_ &ev->iosig.io); |
208 | } |
263 | } |
209 | |
264 | |
210 | if (ev_is_active (&ev->to)) |
265 | if (ev_is_active (&ev->to)) |
211 | ev_timer_stop (EV_A_ &ev->to); |
266 | ev_timer_stop (EV_A_ &ev->to); |
212 | |
267 | |
|
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268 | ev->ev_flags = EVLIST_INIT; |
|
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269 | |
213 | return 0; |
270 | return 0; |
|
|
271 | } |
|
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272 | |
|
|
273 | void event_active (struct event *ev, int res, short ncalls) |
|
|
274 | { |
|
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275 | dLOOPev; |
|
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276 | |
|
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277 | if (res & EV_TIMEOUT) |
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278 | ev_feed_event (EV_A_ &ev->to, res & EV_TIMEOUT); |
|
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279 | |
|
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280 | if (res & EV_SIGNAL) |
|
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281 | ev_feed_event (EV_A_ &ev->iosig.sig, res & EV_SIGNAL); |
|
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282 | |
|
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283 | if (res & (EV_READ | EV_WRITE)) |
|
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284 | ev_feed_event (EV_A_ &ev->iosig.io, res & (EV_READ | EV_WRITE)); |
214 | } |
285 | } |
215 | |
286 | |
216 | int event_pending (struct event *ev, short events, struct timeval *tv) |
287 | int event_pending (struct event *ev, short events, struct timeval *tv) |
217 | { |
288 | { |
|
|
289 | short revents = 0; |
218 | dLOOPev; |
290 | dLOOPev; |
219 | |
291 | |
220 | short revents = 0; |
|
|
221 | |
292 | |
222 | if (ev->ev_events & EV_SIGNAL) |
293 | if (ev->ev_events & EV_SIGNAL) |
223 | { |
294 | { |
224 | /* sig */ |
295 | /* sig */ |
225 | if (ev->iosig.sig.pending) |
296 | if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig)) |
226 | revents |= EV_SIGNAL; |
297 | revents |= EV_SIGNAL; |
227 | } |
298 | } |
228 | else |
299 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
229 | { |
300 | { |
230 | /* io */ |
301 | /* io */ |
231 | if (ev->iosig.io.pending) |
302 | if (ev_is_active (&ev->iosig.io) || ev_is_pending (&ev->iosig.io)) |
232 | revents |= ev->ev_events & (EV_READ | EV_WRITE); |
303 | revents |= ev->ev_events & (EV_READ | EV_WRITE); |
233 | } |
304 | } |
234 | |
305 | |
235 | if (ev->to.pending) |
306 | if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to)) |
236 | { |
307 | { |
237 | revents |= EV_TIMEOUT; |
308 | revents |= EV_TIMEOUT; |
238 | |
309 | |
239 | if (tv) |
310 | if (tv) |
240 | tv_set (tv, ev_now (EV_A)); /* not sure if this is right :) */ |
311 | tv_set (tv, ev_now (EV_A)); /* not sure if this is right :) */ |
… | |
… | |
263 | } |
334 | } |
264 | |
335 | |
265 | int event_base_loop (struct event_base *base, int flags) |
336 | int event_base_loop (struct event_base *base, int flags) |
266 | { |
337 | { |
267 | dLOOPbase; |
338 | dLOOPbase; |
268 | ev_loop (EV_A_ flags | EVLOOP_ONESHOT); |
339 | |
|
|
340 | ev_loop (EV_A_ flags); |
269 | |
341 | |
270 | return 0; |
342 | return 0; |
271 | } |
343 | } |
272 | |
344 | |
273 | int event_base_dispatch (struct event_base *base) |
345 | int event_base_dispatch (struct event_base *base) |
274 | { |
346 | { |
275 | return event_base_loop (base, 0); |
347 | return event_base_loop (base, 0); |
276 | } |
348 | } |
277 | |
349 | |
278 | static void |
350 | static void |
279 | x_loopexit_cb (EV_P_ int revents, void *arg) |
351 | x_loopexit_cb (int revents, void *base) |
280 | { |
352 | { |
|
|
353 | dLOOPbase; |
|
|
354 | |
281 | ev_unloop (EV_A_ 2); |
355 | ev_unloop (EV_A_ EVUNLOOP_ONE); |
282 | } |
356 | } |
283 | |
357 | |
284 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
358 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
285 | { |
359 | { |
|
|
360 | ev_tstamp after = tv_get (tv); |
286 | dLOOPbase; |
361 | dLOOPbase; |
287 | ev_tstamp after = tv_get (tv); |
|
|
288 | |
362 | |
289 | ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base); |
363 | ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base); |
290 | |
364 | |
291 | return -1; |
365 | return -1; |
292 | } |
366 | } |
… | |
… | |
299 | }; |
373 | }; |
300 | |
374 | |
301 | static void |
375 | static void |
302 | x_once_cb (int revents, void *arg) |
376 | x_once_cb (int revents, void *arg) |
303 | { |
377 | { |
304 | struct x_once *once = arg; |
378 | struct x_once *once = (struct x_once *)arg; |
305 | |
379 | |
306 | once->cb (once->fd, revents, once->arg); |
380 | once->cb (once->fd, (short)revents, once->arg); |
307 | free (once); |
381 | free (once); |
308 | } |
382 | } |
309 | |
383 | |
310 | int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
384 | int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
311 | { |
385 | { |
|
|
386 | struct x_once *once = (struct x_once *)malloc (sizeof (struct x_once)); |
312 | dLOOPbase; |
387 | dLOOPbase; |
313 | struct x_once *once = malloc (sizeof (struct x_once)); |
|
|
314 | |
388 | |
315 | if (!once) |
389 | if (!once) |
316 | return -1; |
390 | return -1; |
317 | |
391 | |
318 | once->fd = fd; |
392 | once->fd = fd; |
… | |
… | |
324 | return 0; |
398 | return 0; |
325 | } |
399 | } |
326 | |
400 | |
327 | int event_base_priority_init (struct event_base *base, int npri) |
401 | int event_base_priority_init (struct event_base *base, int npri) |
328 | { |
402 | { |
329 | dLOOPbase; |
403 | /*dLOOPbase;*/ |
330 | |
404 | |
331 | return 0; |
405 | return 0; |
332 | } |
406 | } |
333 | |
407 | |