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Comparing libev/event.c (file contents):
Revision 1.33 by root, Tue Dec 25 07:05:46 2007 UTC vs.
Revision 1.37 by root, Wed Oct 29 17:50:57 2008 UTC

1/* 1/*
2 * libevent compatibility layer 2 * libevent compatibility layer
3 * 3 *
4 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
63struct event_base 63struct event_base
64{ 64{
65 int dummy; 65 int dummy;
66}; 66};
67 67
68static struct event_base *x_cur; 68static struct event_base *ev_x_cur;
69 69
70static void 70static void
71tv_set (struct timeval *tv, ev_tstamp at) 71ev_tv_set (struct timeval *tv, ev_tstamp at)
72{ 72{
73 tv->tv_sec = (long)at; 73 tv->tv_sec = (long)at;
74 tv->tv_usec = (long)((at - (ev_tstamp)tv->tv_sec) * 1e6); 74 tv->tv_usec = (long)((at - (ev_tstamp)tv->tv_sec) * 1e6);
75} 75}
76 76
77static ev_tstamp 77static ev_tstamp
78tv_get (struct timeval *tv) 78ev_tv_get (struct timeval *tv)
79{ 79{
80 if (tv) 80 if (tv)
81 return tv->tv_sec + tv->tv_usec * 1e-6; 81 return tv->tv_sec + tv->tv_usec * 1e-6;
82 else 82 else
83 return -1.; 83 return -1.;
… …
96} 96}
97 97
98void *event_init (void) 98void *event_init (void)
99{ 99{
100#if EV_MULTIPLICITY 100#if EV_MULTIPLICITY
101 if (x_cur) 101 if (ev_x_cur)
102 x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO); 102 ev_x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO);
103 else 103 else
104 x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO); 104 ev_x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO);
105#else 105#else
106 assert (("multiple event bases not supported when not compiled with EV_MULTIPLICITY", !x_cur)); 106 assert (("multiple event bases not supported when not compiled with EV_MULTIPLICITY", !ev_x_cur));
107 107
108 x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO); 108 ev_x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO);
109#endif 109#endif
110 110
111 return x_cur; 111 return ev_x_cur;
112} 112}
113 113
114void event_base_free (struct event_base *base) 114void event_base_free (struct event_base *base)
115{ 115{
116 dLOOPbase; 116 dLOOPbase;
… …
121#endif 121#endif
122} 122}
123 123
124int event_dispatch (void) 124int event_dispatch (void)
125{ 125{
126 return event_base_dispatch (x_cur); 126 return event_base_dispatch (ev_x_cur);
127} 127}
128 128
129#ifdef EV_STANDALONE 129#ifdef EV_STANDALONE
130void event_set_log_callback (event_log_cb cb) 130void event_set_log_callback (event_log_cb cb)
131{ 131{
… …
133} 133}
134#endif 134#endif
135 135
136int event_loop (int flags) 136int event_loop (int flags)
137{ 137{
138 return event_base_loop (x_cur, flags); 138 return event_base_loop (ev_x_cur, flags);
139} 139}
140 140
141int event_loopexit (struct timeval *tv) 141int event_loopexit (struct timeval *tv)
142{ 142{
143 return event_base_loopexit (x_cur, tv); 143 return event_base_loopexit (ev_x_cur, tv);
144} 144}
145 145
146static void 146static void
147x_cb (struct event *ev, int revents) 147ev_x_cb (struct event *ev, int revents)
148{ 148{
149 revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; 149 revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL;
150 150
151 ev->ev_res = revents; 151 ev->ev_res = revents;
152 ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg); 152 ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg);
153} 153}
154 154
155static void 155static void
156x_cb_sig (EV_P_ struct ev_signal *w, int revents) 156ev_x_cb_sig (EV_P_ struct ev_signal *w, int revents)
157{ 157{
158 struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig)); 158 struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig));
159 159
160 if (revents & EV_ERROR) 160 if (revents & EV_ERROR)
161 event_del (ev); 161 event_del (ev);
162 162
163 x_cb (ev, revents); 163 ev_x_cb (ev, revents);
164} 164}
165 165
166static void 166static void
167x_cb_io (EV_P_ struct ev_io *w, int revents) 167ev_x_cb_io (EV_P_ struct ev_io *w, int revents)
168{ 168{
169 struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io)); 169 struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io));
170 170
171 if ((revents & EV_ERROR) || !(ev->ev_events & EV_PERSIST)) 171 if ((revents & EV_ERROR) || !(ev->ev_events & EV_PERSIST))
172 event_del (ev); 172 event_del (ev);
173 173
174 x_cb (ev, revents); 174 ev_x_cb (ev, revents);
175} 175}
176 176
177static void 177static void
178x_cb_to (EV_P_ struct ev_timer *w, int revents) 178ev_x_cb_to (EV_P_ struct ev_timer *w, int revents)
179{ 179{
180 struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to)); 180 struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to));
181 181
182 event_del (ev); 182 event_del (ev);
183 183
184 x_cb (ev, revents); 184 ev_x_cb (ev, revents);
185} 185}
186 186
187void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) 187void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg)
188{ 188{
189 if (events & EV_SIGNAL) 189 if (events & EV_SIGNAL)
190 ev_init (&ev->iosig.sig, x_cb_sig); 190 ev_init (&ev->iosig.sig, ev_x_cb_sig);
191 else 191 else
192 ev_init (&ev->iosig.io, x_cb_io); 192 ev_init (&ev->iosig.io, ev_x_cb_io);
193 193
194 ev_init (&ev->to, x_cb_to); 194 ev_init (&ev->to, ev_x_cb_to);
195 195
196 ev->ev_base = x_cur; /* not threadsafe, but its like libevent works */ 196 ev->ev_base = ev_x_cur; /* not threadsafe, but it's how libevent works */
197 ev->ev_fd = fd; 197 ev->ev_fd = fd;
198 ev->ev_events = events; 198 ev->ev_events = events;
199 ev->ev_pri = 0; 199 ev->ev_pri = 0;
200 ev->ev_callback = cb; 200 ev->ev_callback = cb;
201 ev->ev_arg = arg; 201 ev->ev_arg = arg;
… …
203 ev->ev_flags = EVLIST_INIT; 203 ev->ev_flags = EVLIST_INIT;
204} 204}
205 205
206int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) 206int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
207{ 207{
208 return event_base_once (x_cur, fd, events, cb, arg, tv); 208 return event_base_once (ev_x_cur, fd, events, cb, arg, tv);
209} 209}
210 210
211int event_add (struct event *ev, struct timeval *tv) 211int event_add (struct event *ev, struct timeval *tv)
212{ 212{
213 dLOOPev; 213 dLOOPev;
… …
233 } 233 }
234 } 234 }
235 235
236 if (tv) 236 if (tv)
237 { 237 {
238 ev->to.repeat = tv_get (tv); 238 ev->to.repeat = ev_tv_get (tv);
239 ev_timer_again (EV_A_ &ev->to); 239 ev_timer_again (EV_A_ &ev->to);
240 ev->ev_flags |= EVLIST_TIMEOUT; 240 ev->ev_flags |= EVLIST_TIMEOUT;
241 } 241 }
242 else 242 else
243 { 243 {
… …
284int event_pending (struct event *ev, short events, struct timeval *tv) 284int event_pending (struct event *ev, short events, struct timeval *tv)
285{ 285{
286 short revents = 0; 286 short revents = 0;
287 dLOOPev; 287 dLOOPev;
288 288
289
290 if (ev->ev_events & EV_SIGNAL) 289 if (ev->ev_events & EV_SIGNAL)
291 { 290 {
292 /* sig */ 291 /* sig */
293 if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig)) 292 if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig))
294 revents |= EV_SIGNAL; 293 revents |= EV_SIGNAL;
… …
303 if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to)) 302 if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to))
304 { 303 {
305 revents |= EV_TIMEOUT; 304 revents |= EV_TIMEOUT;
306 305
307 if (tv) 306 if (tv)
308 tv_set (tv, ev_now (EV_A)); /* not sure if this is right :) */ 307 ev_tv_set (tv, ev_now (EV_A)); /* not sure if this is right :) */
309 } 308 }
310 309
311 return events & revents; 310 return events & revents;
312} 311}
313 312
314int event_priority_init (int npri) 313int event_priority_init (int npri)
315{ 314{
316 return event_base_priority_init (x_cur, npri); 315 return event_base_priority_init (ev_x_cur, npri);
317} 316}
318 317
319int event_priority_set (struct event *ev, int pri) 318int event_priority_set (struct event *ev, int pri)
320{ 319{
321 ev->ev_pri = pri; 320 ev->ev_pri = pri;
… …
343{ 342{
344 return event_base_loop (base, 0); 343 return event_base_loop (base, 0);
345} 344}
346 345
347static void 346static void
348x_loopexit_cb (int revents, void *base) 347ev_x_loopexit_cb (int revents, void *base)
349{ 348{
350 dLOOPbase; 349 dLOOPbase;
351 350
352 ev_unloop (EV_A_ EVUNLOOP_ONE); 351 ev_unloop (EV_A_ EVUNLOOP_ONE);
353} 352}
354 353
355int event_base_loopexit (struct event_base *base, struct timeval *tv) 354int event_base_loopexit (struct event_base *base, struct timeval *tv)
356{ 355{
357 ev_tstamp after = tv_get (tv); 356 ev_tstamp after = ev_tv_get (tv);
358 dLOOPbase; 357 dLOOPbase;
359 358
360 ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base); 359 ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., ev_x_loopexit_cb, (void *)base);
361 360
362 return -1; 361 return 0;
363} 362}
364 363
365struct x_once 364struct ev_x_once
366{ 365{
367 int fd; 366 int fd;
368 void (*cb)(int, short, void *); 367 void (*cb)(int, short, void *);
369 void *arg; 368 void *arg;
370}; 369};
371 370
372static void 371static void
373x_once_cb (int revents, void *arg) 372ev_x_once_cb (int revents, void *arg)
374{ 373{
375 struct x_once *once = (struct x_once *)arg; 374 struct ev_x_once *once = (struct ev_x_once *)arg;
376 375
377 once->cb (once->fd, (short)revents, once->arg); 376 once->cb (once->fd, (short)revents, once->arg);
378 free (once); 377 free (once);
379} 378}
380 379
381int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) 380int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
382{ 381{
383 struct x_once *once = (struct x_once *)malloc (sizeof (struct x_once)); 382 struct ev_x_once *once = (struct ev_x_once *)malloc (sizeof (struct ev_x_once));
384 dLOOPbase; 383 dLOOPbase;
385 384
386 if (!once) 385 if (!once)
387 return -1; 386 return -1;
388 387
389 once->fd = fd; 388 once->fd = fd;
390 once->cb = cb; 389 once->cb = cb;
391 once->arg = arg; 390 once->arg = arg;
392 391
393 ev_once (EV_A_ fd, events & (EV_READ | EV_WRITE), tv_get (tv), x_once_cb, (void *)once); 392 ev_once (EV_A_ fd, events & (EV_READ | EV_WRITE), ev_tv_get (tv), ev_x_once_cb, (void *)once);
394 393
395 return 0; 394 return 0;
396} 395}
397 396
398int event_base_priority_init (struct event_base *base, int npri) 397int event_base_priority_init (struct event_base *base, int npri)

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