1 | #include <math.h> |
1 | #include <math.h> |
2 | #include <stdlib.h> |
2 | #include <stdlib.h> |
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3 | #include <unistd.h> |
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4 | #include <fcntl.h> |
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5 | #include <signal.h> |
3 | |
6 | |
4 | #include <stdio.h> |
7 | #include <stdio.h> |
5 | |
8 | |
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9 | #include <assert.h> |
6 | #include <errno.h> |
10 | #include <errno.h> |
7 | #include <sys/time.h> |
11 | #include <sys/time.h> |
8 | #include <time.h> |
12 | #include <time.h> |
9 | |
13 | |
10 | #ifdef CLOCK_MONOTONIC |
14 | #ifdef CLOCK_MONOTONIC |
11 | # define HAVE_MONOTONIC 1 |
15 | # define HAVE_MONOTONIC 1 |
12 | #endif |
16 | #endif |
13 | |
17 | |
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18 | #define HAVE_REALTIME 1 |
14 | #define HAVE_EPOLL 1 |
19 | #define HAVE_EPOLL 1 |
15 | #define HAVE_REALTIME 1 |
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16 | #define HAVE_SELECT 0 |
20 | #define HAVE_SELECT 1 |
17 | |
21 | |
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22 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
18 | #define MAX_BLOCKTIME 60. |
23 | #define MAX_BLOCKTIME 60. |
19 | |
24 | |
20 | #include "ev.h" |
25 | #include "ev.h" |
21 | |
26 | |
22 | struct ev_watcher { |
27 | struct ev_watcher { |
… | |
… | |
25 | |
30 | |
26 | struct ev_watcher_list { |
31 | struct ev_watcher_list { |
27 | EV_WATCHER_LIST (ev_watcher_list); |
32 | EV_WATCHER_LIST (ev_watcher_list); |
28 | }; |
33 | }; |
29 | |
34 | |
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35 | static ev_tstamp now, diff; /* monotonic clock */ |
30 | ev_tstamp ev_now; |
36 | ev_tstamp ev_now; |
31 | int ev_method; |
37 | int ev_method; |
32 | |
38 | |
33 | static int have_monotonic; /* runtime */ |
39 | static int have_monotonic; /* runtime */ |
34 | |
40 | |
35 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
41 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
36 | static void (*method_reify)(void); |
42 | static void (*method_modify)(int fd, int oev, int nev); |
37 | static void (*method_poll)(ev_tstamp timeout); |
43 | static void (*method_poll)(ev_tstamp timeout); |
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44 | |
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45 | /*****************************************************************************/ |
38 | |
46 | |
39 | ev_tstamp |
47 | ev_tstamp |
40 | ev_time (void) |
48 | ev_time (void) |
41 | { |
49 | { |
42 | #if HAVE_REALTIME |
50 | #if HAVE_REALTIME |
… | |
… | |
73 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
81 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
74 | init (base + cur, newcnt - cur); \ |
82 | init (base + cur, newcnt - cur); \ |
75 | cur = newcnt; \ |
83 | cur = newcnt; \ |
76 | } |
84 | } |
77 | |
85 | |
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86 | /*****************************************************************************/ |
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87 | |
78 | typedef struct |
88 | typedef struct |
79 | { |
89 | { |
80 | struct ev_io *head; |
90 | struct ev_io *head; |
81 | unsigned char wev, rev; /* want, received event set */ |
91 | unsigned char wev, rev; /* want, received event set */ |
82 | } ANFD; |
92 | } ANFD; |
… | |
… | |
129 | if (ev) |
139 | if (ev) |
130 | event ((struct ev_watcher *)w, ev); |
140 | event ((struct ev_watcher *)w, ev); |
131 | } |
141 | } |
132 | } |
142 | } |
133 | |
143 | |
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144 | static void |
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145 | queue_events (struct ev_watcher **events, int eventcnt, int type) |
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146 | { |
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147 | int i; |
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148 | |
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149 | for (i = 0; i < eventcnt; ++i) |
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150 | event (events [i], type); |
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151 | } |
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152 | |
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153 | /*****************************************************************************/ |
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154 | |
134 | static struct ev_timer **timers; |
155 | static struct ev_timer **atimers; |
135 | static int timermax, timercnt; |
156 | static int atimermax, atimercnt; |
136 | |
157 | |
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158 | static struct ev_timer **rtimers; |
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159 | static int rtimermax, rtimercnt; |
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160 | |
137 | static void |
161 | static void |
138 | upheap (int k) |
162 | upheap (struct ev_timer **timers, int k) |
139 | { |
163 | { |
140 | struct ev_timer *w = timers [k]; |
164 | struct ev_timer *w = timers [k]; |
141 | |
165 | |
142 | while (k && timers [k >> 1]->at > w->at) |
166 | while (k && timers [k >> 1]->at > w->at) |
143 | { |
167 | { |
… | |
… | |
150 | timers [k]->active = k + 1; |
174 | timers [k]->active = k + 1; |
151 | |
175 | |
152 | } |
176 | } |
153 | |
177 | |
154 | static void |
178 | static void |
155 | downheap (int k) |
179 | downheap (struct ev_timer **timers, int N, int k) |
156 | { |
180 | { |
157 | struct ev_timer *w = timers [k]; |
181 | struct ev_timer *w = timers [k]; |
158 | |
182 | |
159 | while (k < (timercnt >> 1)) |
183 | while (k < (N >> 1)) |
160 | { |
184 | { |
161 | int j = k << 1; |
185 | int j = k << 1; |
162 | |
186 | |
163 | if (j + 1 < timercnt && timers [j]->at > timers [j + 1]->at) |
187 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
164 | ++j; |
188 | ++j; |
165 | |
189 | |
166 | if (w->at <= timers [j]->at) |
190 | if (w->at <= timers [j]->at) |
167 | break; |
191 | break; |
168 | |
192 | |
… | |
… | |
173 | |
197 | |
174 | timers [k] = w; |
198 | timers [k] = w; |
175 | timers [k]->active = k + 1; |
199 | timers [k]->active = k + 1; |
176 | } |
200 | } |
177 | |
201 | |
178 | static struct ev_signal **signals; |
202 | /*****************************************************************************/ |
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203 | |
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204 | typedef struct |
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205 | { |
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206 | struct ev_signal *head; |
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207 | sig_atomic_t gotsig; |
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208 | } ANSIG; |
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209 | |
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210 | static ANSIG *signals; |
179 | static int signalmax, signalcnt; |
211 | static int signalmax; |
180 | |
212 | |
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213 | static int sigpipe [2]; |
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214 | static sig_atomic_t gotsig; |
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215 | static struct ev_io sigev; |
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216 | |
181 | static void |
217 | static void |
182 | signals_init (struct ev_signal **base, int count) |
218 | signals_init (ANSIG *base, int count) |
183 | { |
219 | { |
184 | while (count--) |
220 | while (count--) |
185 | *base++ = 0; |
221 | { |
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222 | base->head = 0; |
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223 | base->gotsig = 0; |
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224 | ++base; |
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225 | } |
186 | } |
226 | } |
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227 | |
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228 | static void |
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229 | sighandler (int signum) |
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230 | { |
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231 | signals [signum - 1].gotsig = 1; |
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232 | |
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233 | if (!gotsig) |
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234 | { |
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235 | gotsig = 1; |
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236 | write (sigpipe [1], &gotsig, 1); |
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237 | } |
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238 | } |
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239 | |
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240 | static void |
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241 | sigcb (struct ev_io *iow, int revents) |
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242 | { |
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243 | struct ev_signal *w; |
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244 | int sig; |
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245 | |
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246 | gotsig = 0; |
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247 | read (sigpipe [0], &revents, 1); |
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248 | |
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249 | for (sig = signalmax; sig--; ) |
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250 | if (signals [sig].gotsig) |
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251 | { |
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252 | signals [sig].gotsig = 0; |
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253 | |
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254 | for (w = signals [sig].head; w; w = w->next) |
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255 | event ((struct ev_watcher *)w, EV_SIGNAL); |
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256 | } |
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257 | } |
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258 | |
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259 | static void |
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260 | siginit (void) |
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261 | { |
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262 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
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263 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
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264 | |
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265 | /* rather than sort out wether we really need nb, set it */ |
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266 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
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267 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
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268 | |
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269 | evio_set (&sigev, sigpipe [0], EV_READ); |
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270 | evio_start (&sigev); |
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271 | } |
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272 | |
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273 | /*****************************************************************************/ |
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274 | |
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275 | static struct ev_idle **idles; |
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276 | static int idlemax, idlecnt; |
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277 | |
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278 | static struct ev_check **checks; |
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279 | static int checkmax, checkcnt; |
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280 | |
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281 | /*****************************************************************************/ |
187 | |
282 | |
188 | #if HAVE_EPOLL |
283 | #if HAVE_EPOLL |
189 | # include "ev_epoll.c" |
284 | # include "ev_epoll.c" |
190 | #endif |
285 | #endif |
191 | #if HAVE_SELECT |
286 | #if HAVE_SELECT |
… | |
… | |
201 | have_monotonic = 1; |
296 | have_monotonic = 1; |
202 | } |
297 | } |
203 | #endif |
298 | #endif |
204 | |
299 | |
205 | ev_now = ev_time (); |
300 | ev_now = ev_time (); |
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301 | now = get_clock (); |
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302 | diff = ev_now - now; |
206 | |
303 | |
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304 | if (pipe (sigpipe)) |
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305 | return 0; |
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306 | |
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307 | ev_method = EVMETHOD_NONE; |
207 | #if HAVE_EPOLL |
308 | #if HAVE_EPOLL |
208 | if (epoll_init (flags)) |
309 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
209 | return ev_method; |
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210 | #endif |
310 | #endif |
211 | #if HAVE_SELECT |
311 | #if HAVE_SELECT |
212 | if (select_init (flags)) |
312 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
213 | return ev_method; |
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214 | #endif |
313 | #endif |
215 | |
314 | |
216 | ev_method = EVMETHOD_NONE; |
315 | if (ev_method) |
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316 | { |
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317 | evw_init (&sigev, sigcb, 0); |
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318 | siginit (); |
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319 | } |
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320 | |
217 | return ev_method; |
321 | return ev_method; |
218 | } |
322 | } |
219 | |
323 | |
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324 | /*****************************************************************************/ |
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325 | |
220 | void ev_prefork (void) |
326 | void ev_prefork (void) |
221 | { |
327 | { |
222 | } |
328 | } |
223 | |
329 | |
224 | void ev_postfork_parent (void) |
330 | void ev_postfork_parent (void) |
… | |
… | |
226 | } |
332 | } |
227 | |
333 | |
228 | void ev_postfork_child (void) |
334 | void ev_postfork_child (void) |
229 | { |
335 | { |
230 | #if HAVE_EPOLL |
336 | #if HAVE_EPOLL |
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337 | if (ev_method == EVMETHOD_EPOLL) |
231 | epoll_postfork_child (); |
338 | epoll_postfork_child (); |
232 | #endif |
339 | #endif |
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340 | |
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341 | evio_stop (&sigev); |
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342 | close (sigpipe [0]); |
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343 | close (sigpipe [1]); |
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344 | pipe (sigpipe); |
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345 | siginit (); |
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346 | } |
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347 | |
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348 | /*****************************************************************************/ |
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349 | |
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350 | static void |
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351 | fd_reify (void) |
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352 | { |
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353 | int i; |
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354 | |
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355 | for (i = 0; i < fdchangecnt; ++i) |
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356 | { |
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357 | int fd = fdchanges [i]; |
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358 | ANFD *anfd = anfds + fd; |
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359 | struct ev_io *w; |
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360 | |
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361 | int wev = 0; |
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362 | |
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363 | for (w = anfd->head; w; w = w->next) |
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364 | wev |= w->events; |
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365 | |
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366 | if (anfd->wev != wev) |
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367 | { |
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368 | method_modify (fd, anfd->wev, wev); |
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369 | anfd->wev = wev; |
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370 | } |
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371 | } |
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372 | |
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373 | fdchangecnt = 0; |
233 | } |
374 | } |
234 | |
375 | |
235 | static void |
376 | static void |
236 | call_pending () |
377 | call_pending () |
237 | { |
378 | { |
… | |
… | |
250 | |
391 | |
251 | pendingcnt = 0; |
392 | pendingcnt = 0; |
252 | } |
393 | } |
253 | |
394 | |
254 | static void |
395 | static void |
255 | timer_reify (void) |
396 | timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now) |
256 | { |
397 | { |
257 | while (timercnt && timers [0]->at <= ev_now) |
398 | while (timercnt && timers [0]->at <= now) |
258 | { |
399 | { |
259 | struct ev_timer *w = timers [0]; |
400 | struct ev_timer *w = timers [0]; |
260 | |
401 | |
261 | /* first reschedule timer */ |
402 | /* first reschedule or stop timer */ |
262 | if (w->repeat) |
403 | if (w->repeat) |
263 | { |
404 | { |
264 | if (w->is_abs) |
405 | if (w->is_abs) |
265 | w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat; |
406 | w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat; |
266 | else |
407 | else |
267 | w->at = ev_now + w->repeat; |
408 | w->at = now + w->repeat; |
268 | |
409 | |
269 | downheap (0); |
410 | assert (w->at > now); |
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411 | |
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412 | downheap (timers, timercnt, 0); |
270 | } |
413 | } |
271 | else |
414 | else |
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415 | { |
272 | evtimer_stop (w); /* nonrepeating: stop timer */ |
416 | evtimer_stop (w); /* nonrepeating: stop timer */ |
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417 | --timercnt; /* maybe pass by reference instead? */ |
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418 | } |
273 | |
419 | |
274 | event ((struct ev_watcher *)w, EV_TIMEOUT); |
420 | event ((struct ev_watcher *)w, EV_TIMEOUT); |
275 | } |
421 | } |
276 | } |
422 | } |
277 | |
423 | |
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424 | static void |
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425 | time_update () |
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426 | { |
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427 | int i; |
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428 | ev_now = ev_time (); |
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429 | |
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430 | if (have_monotonic) |
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431 | { |
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432 | ev_tstamp odiff = diff; |
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433 | |
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434 | /* detecting time jumps is much more difficult */ |
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435 | for (i = 2; --i; ) /* loop a few times, before making important decisions */ |
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436 | { |
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437 | now = get_clock (); |
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438 | diff = ev_now - now; |
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439 | |
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440 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
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441 | return; /* all is well */ |
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442 | |
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443 | ev_now = ev_time (); |
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444 | } |
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445 | |
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446 | /* time jump detected, reschedule atimers */ |
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447 | for (i = 0; i < atimercnt; ++i) |
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448 | { |
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449 | struct ev_timer *w = atimers [i]; |
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450 | w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat; |
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451 | } |
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452 | } |
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453 | else |
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454 | { |
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455 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
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456 | /* time jump detected, adjust rtimers */ |
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457 | for (i = 0; i < rtimercnt; ++i) |
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458 | rtimers [i]->at += ev_now - now; |
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459 | |
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460 | now = ev_now; |
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461 | } |
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462 | } |
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463 | |
278 | int ev_loop_done; |
464 | int ev_loop_done; |
279 | |
465 | |
280 | int ev_loop (int flags) |
466 | void ev_loop (int flags) |
281 | { |
467 | { |
282 | double block; |
468 | double block; |
283 | ev_loop_done = flags & EVLOOP_ONESHOT; |
469 | ev_loop_done = flags & EVLOOP_ONESHOT; |
284 | |
470 | |
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471 | if (checkcnt) |
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472 | { |
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473 | queue_events (checks, checkcnt, EV_CHECK); |
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474 | call_pending (); |
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475 | } |
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476 | |
285 | do |
477 | do |
286 | { |
478 | { |
287 | /* update fd-related kernel structures */ |
479 | /* update fd-related kernel structures */ |
288 | method_reify (); fdchangecnt = 0; |
480 | fd_reify (); |
289 | |
481 | |
290 | /* calculate blocking time */ |
482 | /* calculate blocking time */ |
291 | ev_now = ev_time (); |
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292 | |
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293 | if (flags & EVLOOP_NONBLOCK) |
483 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
294 | block = 0.; |
484 | block = 0.; |
295 | else if (!timercnt) |
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296 | block = MAX_BLOCKTIME; |
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297 | else |
485 | else |
298 | { |
486 | { |
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487 | block = MAX_BLOCKTIME; |
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488 | |
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489 | if (rtimercnt) |
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490 | { |
299 | block = timers [0]->at - ev_now + method_fudge; |
491 | ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge; |
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492 | if (block > to) block = to; |
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493 | } |
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494 | |
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495 | if (atimercnt) |
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496 | { |
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497 | ev_tstamp to = atimers [0]->at - ev_time () + method_fudge; |
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498 | if (block > to) block = to; |
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499 | } |
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500 | |
300 | if (block < 0.) block = 0.; |
501 | if (block < 0.) block = 0.; |
301 | else if (block > MAX_BLOCKTIME) block = MAX_BLOCKTIME; |
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302 | } |
502 | } |
303 | |
503 | |
304 | method_poll (block); |
504 | method_poll (block); |
305 | |
505 | |
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506 | /* update ev_now, do magic */ |
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507 | time_update (); |
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508 | |
306 | /* put pending timers into pendign queue and reschedule them */ |
509 | /* queue pending timers and reschedule them */ |
307 | timer_reify (); |
510 | /* absolute timers first */ |
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511 | timers_reify (atimers, atimercnt, ev_now); |
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512 | /* relative timers second */ |
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513 | timers_reify (rtimers, rtimercnt, now); |
308 | |
514 | |
309 | ev_now = ev_time (); |
515 | /* queue idle watchers unless io or timers are pending */ |
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516 | if (!pendingcnt) |
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517 | queue_events (idles, idlecnt, EV_IDLE); |
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518 | |
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519 | /* queue check and possibly idle watchers */ |
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520 | queue_events (checks, checkcnt, EV_CHECK); |
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521 | |
310 | call_pending (); |
522 | call_pending (); |
311 | } |
523 | } |
312 | while (!ev_loop_done); |
524 | while (!ev_loop_done); |
313 | } |
525 | } |
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526 | |
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527 | /*****************************************************************************/ |
314 | |
528 | |
315 | static void |
529 | static void |
316 | wlist_add (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
530 | wlist_add (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
317 | { |
531 | { |
318 | elem->next = *head; |
532 | elem->next = *head; |
… | |
… | |
348 | pendings [w->pending - 1].w = 0; |
562 | pendings [w->pending - 1].w = 0; |
349 | |
563 | |
350 | w->active = 0; |
564 | w->active = 0; |
351 | /* nop */ |
565 | /* nop */ |
352 | } |
566 | } |
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567 | |
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568 | /*****************************************************************************/ |
353 | |
569 | |
354 | void |
570 | void |
355 | evio_start (struct ev_io *w) |
571 | evio_start (struct ev_io *w) |
356 | { |
572 | { |
357 | if (ev_is_active (w)) |
573 | if (ev_is_active (w)) |
… | |
… | |
391 | if (w->is_abs) |
607 | if (w->is_abs) |
392 | { |
608 | { |
393 | /* this formula differs from the one in timer_reify becuse we do not round up */ |
609 | /* this formula differs from the one in timer_reify becuse we do not round up */ |
394 | if (w->repeat) |
610 | if (w->repeat) |
395 | w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat; |
611 | w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat; |
|
|
612 | |
|
|
613 | ev_start ((struct ev_watcher *)w, ++atimercnt); |
|
|
614 | array_needsize (atimers, atimermax, atimercnt, ); |
|
|
615 | atimers [atimercnt - 1] = w; |
|
|
616 | upheap (atimers, atimercnt - 1); |
396 | } |
617 | } |
397 | else |
618 | else |
|
|
619 | { |
398 | w->at += ev_now; |
620 | w->at += now; |
399 | |
621 | |
400 | ev_start ((struct ev_watcher *)w, ++timercnt); |
622 | ev_start ((struct ev_watcher *)w, ++rtimercnt); |
401 | array_needsize (timers, timermax, timercnt, ); |
623 | array_needsize (rtimers, rtimermax, rtimercnt, ); |
402 | timers [timercnt - 1] = w; |
624 | rtimers [rtimercnt - 1] = w; |
403 | upheap (timercnt - 1); |
625 | upheap (rtimers, rtimercnt - 1); |
|
|
626 | } |
|
|
627 | |
404 | } |
628 | } |
405 | |
629 | |
406 | void |
630 | void |
407 | evtimer_stop (struct ev_timer *w) |
631 | evtimer_stop (struct ev_timer *w) |
408 | { |
632 | { |
409 | if (!ev_is_active (w)) |
633 | if (!ev_is_active (w)) |
410 | return; |
634 | return; |
411 | |
635 | |
|
|
636 | if (w->is_abs) |
|
|
637 | { |
412 | if (w->active < timercnt--) |
638 | if (w->active < atimercnt--) |
413 | { |
639 | { |
414 | timers [w->active - 1] = timers [timercnt]; |
640 | atimers [w->active - 1] = atimers [atimercnt]; |
415 | downheap (w->active - 1); |
641 | downheap (atimers, atimercnt, w->active - 1); |
|
|
642 | } |
|
|
643 | } |
|
|
644 | else |
|
|
645 | { |
|
|
646 | if (w->active < rtimercnt--) |
|
|
647 | { |
|
|
648 | rtimers [w->active - 1] = rtimers [rtimercnt]; |
|
|
649 | downheap (rtimers, rtimercnt, w->active - 1); |
|
|
650 | } |
416 | } |
651 | } |
417 | |
652 | |
418 | ev_stop ((struct ev_watcher *)w); |
653 | ev_stop ((struct ev_watcher *)w); |
419 | } |
654 | } |
420 | |
655 | |
… | |
… | |
424 | if (ev_is_active (w)) |
659 | if (ev_is_active (w)) |
425 | return; |
660 | return; |
426 | |
661 | |
427 | ev_start ((struct ev_watcher *)w, 1); |
662 | ev_start ((struct ev_watcher *)w, 1); |
428 | array_needsize (signals, signalmax, w->signum, signals_init); |
663 | array_needsize (signals, signalmax, w->signum, signals_init); |
429 | wlist_add ((struct ev_watcher_list **)&signals [w->signum - 1], (struct ev_watcher_list *)w); |
664 | wlist_add ((struct ev_watcher_list **)&signals [w->signum - 1].head, (struct ev_watcher_list *)w); |
|
|
665 | |
|
|
666 | if (!w->next) |
|
|
667 | { |
|
|
668 | struct sigaction sa; |
|
|
669 | sa.sa_handler = sighandler; |
|
|
670 | sigfillset (&sa.sa_mask); |
|
|
671 | sa.sa_flags = 0; |
|
|
672 | sigaction (w->signum, &sa, 0); |
|
|
673 | } |
430 | } |
674 | } |
431 | |
675 | |
432 | void |
676 | void |
433 | evsignal_stop (struct ev_signal *w) |
677 | evsignal_stop (struct ev_signal *w) |
434 | { |
678 | { |
435 | if (!ev_is_active (w)) |
679 | if (!ev_is_active (w)) |
436 | return; |
680 | return; |
437 | |
681 | |
438 | wlist_del ((struct ev_watcher_list **)&signals [w->signum - 1], (struct ev_watcher_list *)w); |
682 | wlist_del ((struct ev_watcher_list **)&signals [w->signum - 1].head, (struct ev_watcher_list *)w); |
439 | ev_stop ((struct ev_watcher *)w); |
683 | ev_stop ((struct ev_watcher *)w); |
|
|
684 | |
|
|
685 | if (!signals [w->signum - 1].head) |
|
|
686 | signal (w->signum, SIG_DFL); |
|
|
687 | } |
|
|
688 | |
|
|
689 | void evidle_start (struct ev_idle *w) |
|
|
690 | { |
|
|
691 | if (ev_is_active (w)) |
|
|
692 | return; |
|
|
693 | |
|
|
694 | ev_start ((struct ev_watcher *)w, ++idlecnt); |
|
|
695 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
696 | idles [idlecnt - 1] = w; |
|
|
697 | } |
|
|
698 | |
|
|
699 | void evidle_stop (struct ev_idle *w) |
|
|
700 | { |
|
|
701 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
702 | ev_stop ((struct ev_watcher *)w); |
|
|
703 | } |
|
|
704 | |
|
|
705 | void evcheck_start (struct ev_check *w) |
|
|
706 | { |
|
|
707 | if (ev_is_active (w)) |
|
|
708 | return; |
|
|
709 | |
|
|
710 | ev_start ((struct ev_watcher *)w, ++checkcnt); |
|
|
711 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
712 | checks [checkcnt - 1] = w; |
|
|
713 | } |
|
|
714 | |
|
|
715 | void evcheck_stop (struct ev_check *w) |
|
|
716 | { |
|
|
717 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
718 | ev_stop ((struct ev_watcher *)w); |
440 | } |
719 | } |
441 | |
720 | |
442 | /*****************************************************************************/ |
721 | /*****************************************************************************/ |
443 | #if 1 |
722 | #if 1 |
444 | |
723 | |
… | |
… | |
449 | } |
728 | } |
450 | |
729 | |
451 | static void |
730 | static void |
452 | ocb (struct ev_timer *w, int revents) |
731 | ocb (struct ev_timer *w, int revents) |
453 | { |
732 | { |
454 | fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
733 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
734 | evtimer_stop (w); |
|
|
735 | evtimer_start (w); |
|
|
736 | } |
|
|
737 | |
|
|
738 | static void |
|
|
739 | scb (struct ev_signal *w, int revents) |
|
|
740 | { |
|
|
741 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
742 | } |
|
|
743 | |
|
|
744 | static void |
|
|
745 | gcb (struct ev_signal *w, int revents) |
|
|
746 | { |
|
|
747 | fprintf (stderr, "generic %x\n", revents); |
455 | } |
748 | } |
456 | |
749 | |
457 | int main (void) |
750 | int main (void) |
458 | { |
751 | { |
459 | struct ev_io sin; |
752 | struct ev_io sin; |
… | |
… | |
462 | |
755 | |
463 | evw_init (&sin, sin_cb, 55); |
756 | evw_init (&sin, sin_cb, 55); |
464 | evio_set (&sin, 0, EV_READ); |
757 | evio_set (&sin, 0, EV_READ); |
465 | evio_start (&sin); |
758 | evio_start (&sin); |
466 | |
759 | |
467 | struct ev_timer t[1000]; |
760 | struct ev_timer t[10000]; |
468 | |
761 | |
|
|
762 | #if 0 |
469 | int i; |
763 | int i; |
470 | for (i = 0; i < 1000; ++i) |
764 | for (i = 0; i < 10000; ++i) |
471 | { |
765 | { |
472 | struct ev_timer *w = t + i; |
766 | struct ev_timer *w = t + i; |
473 | evw_init (w, ocb, i); |
767 | evw_init (w, ocb, i); |
474 | evtimer_set_rel (w, drand48 (), 0); |
768 | evtimer_set_abs (w, drand48 (), 0.99775533); |
475 | evtimer_start (w); |
769 | evtimer_start (w); |
476 | if (drand48 () < 0.5) |
770 | if (drand48 () < 0.5) |
477 | evtimer_stop (w); |
771 | evtimer_stop (w); |
478 | } |
772 | } |
|
|
773 | #endif |
|
|
774 | |
|
|
775 | struct ev_timer t1; |
|
|
776 | evw_init (&t1, ocb, 0); |
|
|
777 | evtimer_set_abs (&t1, 5, 10); |
|
|
778 | evtimer_start (&t1); |
|
|
779 | |
|
|
780 | struct ev_signal sig; |
|
|
781 | evw_init (&sig, scb, 65535); |
|
|
782 | evsignal_set (&sig, SIGQUIT); |
|
|
783 | evsignal_start (&sig); |
|
|
784 | |
|
|
785 | struct ev_check cw; |
|
|
786 | evw_init (&cw, gcb, 0); |
|
|
787 | evcheck_start (&cw); |
|
|
788 | |
|
|
789 | struct ev_idle iw; |
|
|
790 | evw_init (&iw, gcb, 0); |
|
|
791 | evidle_start (&iw); |
479 | |
792 | |
480 | ev_loop (0); |
793 | ev_loop (0); |
481 | |
794 | |
482 | return 0; |
795 | return 0; |
483 | } |
796 | } |