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Comparing libev/event.c (file contents):
Revision 1.2 by root, Thu Nov 1 18:13:44 2007 UTC vs.
Revision 1.7 by root, Sat Nov 3 21:58:51 2007 UTC

… …
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
38#define dLOOPev
39#define dLOOPbase
40
38struct event_base 41struct event_base
39{ 42{
40 int dummy; 43 int dummy;
41}; 44};
42
43static int x_actives;
44 45
45static struct event_base x_base, *x_cur; 46static struct event_base x_base, *x_cur;
46 47
47static void 48static void
48tv_set (struct timeval *tv, ev_tstamp at) 49tv_set (struct timeval *tv, ev_tstamp at)
… …
72 return "libev"; 73 return "libev";
73} 74}
74 75
75void *event_init (void) 76void *event_init (void)
76{ 77{
77 if (ev_init (0)) 78 if (!x_cur && ev_init (0))
78 return x_cur = &x_base; 79 return x_cur = &x_base;
79 80
80 return 0; 81 return 0;
81} 82}
82 83
… …
88int event_dispatch (void) 89int event_dispatch (void)
89{ 90{
90 return event_base_dispatch (x_cur); 91 return event_base_dispatch (x_cur);
91} 92}
92 93
94#ifdef EV_STANDALONE
93void event_set_log_callback (event_log_cb cb) 95void event_set_log_callback (event_log_cb cb)
94{ 96{
95 /* nop */ 97 /* nop */
96} 98}
99#endif
97 100
98int event_loop (int flags) 101int event_loop (int flags)
99{ 102{
100 return event_base_loop (x_cur, flags); 103 return event_base_loop (x_cur, flags);
101} 104}
102 105
103int event_loopexit (struct timeval *tv) 106int event_loopexit (struct timeval *tv)
104{ 107{
105 event_base_loopexit (x_cur, tv); 108 return event_base_loopexit (x_cur, tv);
106} 109}
107 110
108static void 111static void
109x_cb (struct event *ev, int revents) 112x_cb (struct event *ev, int revents)
110{ 113{
111 if (ev_is_active (&ev->sig))
112 {
113 ev_signal_stop (&ev->sig);
114 --x_actives;
115 }
116
117 if (!(ev->ev_events & EV_PERSIST) && ev_is_active (&ev->io))
118 {
119 ev_io_stop (&ev->io);
120 --x_actives;
121 }
122
123 revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; 114 revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL;
124
125 if (revents & EV_TIMEOUT)
126 --x_actives;
127 115
128 ev->ev_res = revents; 116 ev->ev_res = revents;
129 ev->ev_callback (ev->ev_fd, revents, ev->ev_arg); 117 ev->ev_callback (ev->ev_fd, revents, ev->ev_arg);
130} 118}
131 119
132static void 120static void
133x_cb_io (struct ev_io *w, int revents) 121x_cb_sig (EV_P_ struct ev_signal *w, int revents)
134{ 122{
135 x_cb ((struct event *)(((char *)w) - offsetof (struct event, io)), revents); 123 x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.sig)), revents);
136} 124}
137 125
138static void 126static void
127x_cb_io (EV_P_ struct ev_io *w, int revents)
128{
129 struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io));
130
131 if (!(ev->ev_events & EV_PERSIST) && ev_is_active (w))
132 ev_io_stop (w);
133
134 x_cb (ev, revents);
135}
136
137static void
139x_cb_to (struct ev_timer *w, int revents) 138x_cb_to (EV_P_ struct ev_timer *w, int revents)
140{ 139{
141 x_cb ((struct event *)(((char *)w) - offsetof (struct event, to)), revents); 140 x_cb ((struct event *)(((char *)w) - offsetof (struct event, to)), revents);
142} 141}
143 142
144static void
145x_cb_sig (struct ev_signal *w, int revents)
146{
147 x_cb ((struct event *)(((char *)w) - offsetof (struct event, sig)), revents);
148}
149
150void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) 143void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg)
151{ 144{
145 if (events & EV_SIGNAL)
146 ev_watcher_init (&ev->iosig.sig, x_cb_sig);
147 else
152 ev_watcher_init (&ev->io, x_cb_io); 148 ev_watcher_init (&ev->iosig.io, x_cb_io);
149
153 ev_watcher_init (&ev->to, x_cb_to); 150 ev_watcher_init (&ev->to, x_cb_to);
154 ev_watcher_init (&ev->sig, x_cb_sig);
155 151
156 ev->ev_base = x_cur; 152 ev->ev_base = x_cur;
157 ev->ev_fd = fd; 153 ev->ev_fd = fd;
158 ev->ev_events = events; 154 ev->ev_events = events;
159 ev->ev_pri = 0; 155 ev->ev_pri = 0;
… …
162 ev->ev_res = 0; 158 ev->ev_res = 0;
163} 159}
164 160
165int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) 161int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
166{ 162{
167 event_base_once (x_cur, fd, events, cb, arg, tv); 163 return event_base_once (x_cur, fd, events, cb, arg, tv);
168} 164}
169 165
170int event_add (struct event *ev, struct timeval *tv) 166int event_add (struct event *ev, struct timeval *tv)
171{ 167{
168 dLOOPev;
169
170 /* disable all watchers */
171 event_del (ev);
172
173 if (ev->ev_events & EV_SIGNAL)
174 {
175 ev_signal_set (&ev->iosig.sig, ev->ev_fd);
176 ev_signal_start (EV_A_ &ev->iosig.sig);
177 }
178 else if (ev->ev_events & (EV_READ | EV_WRITE))
179 {
180 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);
182 }
183
172 if (tv) 184 if (tv)
173 { 185 {
174 if (ev_is_active (&ev->to))
175 {
176 ev_timer_stop (&ev->to);
177 --x_actives;
178 }
179
180 ev_timer_set (&ev->to, tv_get (tv), 0.); 186 ev_timer_set (&ev->to, tv_get (tv), 0.);
181 ev_timer_start (&ev->to); 187 ev_timer_start (EV_A_ &ev->to);
182 ++x_actives;
183 }
184
185 if (ev->ev_events & (EV_READ | EV_WRITE))
186 { 188 }
187 if (ev_is_active (&ev->io))
188 {
189 ev_io_stop (&ev->io);
190 --x_actives;
191 }
192 189
193 ev_io_set (&ev->io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); 190 return 0;
194 ev_io_start (&ev->io); 191}
195 ++x_actives; 192
196 } 193int event_del (struct event *ev)
194{
195 dLOOPev;
197 196
198 if (ev->ev_events & EV_SIGNAL) 197 if (ev->ev_events & EV_SIGNAL)
199 { 198 {
199 /* sig */
200 if (ev_is_active (&ev->iosig.sig))
201 ev_signal_stop (EV_A_ &ev->iosig.sig);
202 }
203 else
204 {
205 /* io */
200 if (ev_is_active (&ev->sig)) 206 if (ev_is_active (&ev->iosig.io))
201 {
202 ev_signal_stop (&ev->sig);
203 --x_actives;
204 }
205
206 ev_signal_set (&ev->sig, ev->ev_fd);
207 ev_signal_start (&ev->sig);
208 ++x_actives;
209 }
210
211 return 0;
212}
213
214int event_del (struct event *ev)
215{
216 if (ev_is_active (&ev->io))
217 {
218 ev_io_stop (&ev->io); 207 ev_io_stop (EV_A_ &ev->iosig.io);
219 --x_actives;
220 } 208 }
221 209
222 if (ev_is_active (&ev->to)) 210 if (ev_is_active (&ev->to))
223 {
224 ev_timer_stop (&ev->to); 211 ev_timer_stop (EV_A_ &ev->to);
225 --x_actives;
226 }
227 212
228 if (ev_is_active (&ev->sig))
229 {
230 ev_signal_stop (&ev->sig);
231 --x_actives;
232 }
233
234 return 0; 213 return 0;
235}
236
237void event_active (struct event *ev, int fd, short events)
238{
239 /* unclear what this does, likely internal-use */
240} 214}
241 215
242int event_pending (struct event *ev, short events, struct timeval *tv) 216int event_pending (struct event *ev, short events, struct timeval *tv)
243{ 217{
218 dLOOPev;
219
244 short revents; 220 short revents = 0;
245 221
222 if (ev->ev_events & EV_SIGNAL)
223 {
224 /* sig */
225 if (ev->iosig.sig.pending)
226 revents |= EV_SIGNAL;
227 }
228 else
229 {
230 /* io */
246 if (ev->io.pending) 231 if (ev->iosig.io.pending)
247 revents |= ev->ev_events & (EV_READ | EV_WRITE); 232 revents |= ev->ev_events & (EV_READ | EV_WRITE);
233 }
248 234
249 if (ev->to.pending) 235 if (ev->to.pending)
250 { 236 {
251 revents |= EV_TIMEOUT; 237 revents |= EV_TIMEOUT;
252 238
253 if (tv) 239 if (tv)
254 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 :) */
255 } 241 }
256
257 if (ev->sig.pending)
258 revents |= EV_SIGNAL;
259 242
260 return events & revents; 243 return events & revents;
261} 244}
262 245
263int event_priority_init (int npri) 246int event_priority_init (int npri)
… …
279 return 0; 262 return 0;
280} 263}
281 264
282int event_base_loop (struct event_base *base, int flags) 265int event_base_loop (struct event_base *base, int flags)
283{ 266{
284 do 267 dLOOPbase;
285 {
286 ev_loop (flags | EVLOOP_ONESHOT); 268 ev_loop (EV_A_ flags | EVLOOP_ONESHOT);
287 }
288 while (!(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) && x_actives && !ev_loop_done);
289 269
290 return 0; 270 return 0;
291} 271}
292 272
293int event_base_dispatch (struct event_base *base) 273int event_base_dispatch (struct event_base *base)
294{ 274{
295 return event_base_loop (base, 0); 275 return event_base_loop (base, 0);
296} 276}
297 277
298static void 278static void
299x_loopexit_cb (int revents, void *arg) 279x_loopexit_cb (EV_P_ int revents, void *arg)
300{ 280{
301 ev_loop_done = 2; 281 ev_unloop (EV_A_ 2);
302} 282}
303 283
304int event_base_loopexit (struct event_base *base, struct timeval *tv) 284int event_base_loopexit (struct event_base *base, struct timeval *tv)
305{ 285{
286 dLOOPbase;
306 ev_tstamp after = tv_get (tv); 287 ev_tstamp after = tv_get (tv);
307 288
308 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);
290
291 return -1;
309} 292}
310 293
311struct x_once 294struct x_once
312{ 295{
313 int fd; 296 int fd;
… …
324 free (once); 307 free (once);
325} 308}
326 309
327int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) 310int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
328{ 311{
312 dLOOPbase;
329 struct x_once *once = malloc (sizeof (struct x_once)); 313 struct x_once *once = malloc (sizeof (struct x_once));
330 314
331 if (!once) 315 if (!once)
332 return -1; 316 return -1;
333 317
334 once->fd = fd; 318 once->fd = fd;
335 once->cb = cb; 319 once->cb = cb;
336 once->arg = arg; 320 once->arg = arg;
337 321
338 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);
339 323
340 return 0; 324 return 0;
341} 325}
342 326
343int event_base_priority_init (struct event_base *base, int npri) 327int event_base_priority_init (struct event_base *base, int npri)
344{ 328{
345 return 0; 329 dLOOPbase;
346}
347 330
331 return 0;
332}
333

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