1 | /* |
1 | /* |
|
|
2 | * libev event processing core, watcher management |
|
|
3 | * |
2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
3 | * All rights reserved. |
5 | * All rights reserved. |
4 | * |
6 | * |
5 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions are |
8 | * modification, are permitted provided that the following conditions are |
… | |
… | |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
27 | * 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. |
28 | */ |
30 | */ |
|
|
31 | #ifndef EV_STANDALONE |
|
|
32 | # include "config.h" |
|
|
33 | #endif |
29 | |
34 | |
30 | #include <math.h> |
35 | #include <math.h> |
31 | #include <stdlib.h> |
36 | #include <stdlib.h> |
32 | #include <unistd.h> |
37 | #include <unistd.h> |
33 | #include <fcntl.h> |
38 | #include <fcntl.h> |
… | |
… | |
37 | #include <stdio.h> |
42 | #include <stdio.h> |
38 | |
43 | |
39 | #include <assert.h> |
44 | #include <assert.h> |
40 | #include <errno.h> |
45 | #include <errno.h> |
41 | #include <sys/types.h> |
46 | #include <sys/types.h> |
|
|
47 | #ifndef WIN32 |
42 | #include <sys/wait.h> |
48 | # include <sys/wait.h> |
|
|
49 | #endif |
43 | #include <sys/time.h> |
50 | #include <sys/time.h> |
44 | #include <time.h> |
51 | #include <time.h> |
45 | |
52 | |
|
|
53 | /**/ |
|
|
54 | |
46 | #ifndef HAVE_MONOTONIC |
55 | #ifndef EV_USE_MONOTONIC |
|
|
56 | # define EV_USE_MONOTONIC 1 |
|
|
57 | #endif |
|
|
58 | |
|
|
59 | #ifndef EV_USE_SELECT |
|
|
60 | # define EV_USE_SELECT 1 |
|
|
61 | #endif |
|
|
62 | |
|
|
63 | #ifndef EV_USEV_POLL |
|
|
64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
|
|
65 | #endif |
|
|
66 | |
|
|
67 | #ifndef EV_USE_EPOLL |
|
|
68 | # define EV_USE_EPOLL 0 |
|
|
69 | #endif |
|
|
70 | |
|
|
71 | #ifndef EV_USE_KQUEUE |
|
|
72 | # define EV_USE_KQUEUE 0 |
|
|
73 | #endif |
|
|
74 | |
|
|
75 | #ifndef EV_USE_REALTIME |
|
|
76 | # define EV_USE_REALTIME 1 |
|
|
77 | #endif |
|
|
78 | |
|
|
79 | /**/ |
|
|
80 | |
47 | # ifdef CLOCK_MONOTONIC |
81 | #ifndef CLOCK_MONOTONIC |
|
|
82 | # undef EV_USE_MONOTONIC |
48 | # define HAVE_MONOTONIC 1 |
83 | # define EV_USE_MONOTONIC 0 |
49 | # endif |
84 | #endif |
50 | #endif |
|
|
51 | |
85 | |
52 | #ifndef HAVE_SELECT |
|
|
53 | # define HAVE_SELECT 1 |
|
|
54 | #endif |
|
|
55 | |
|
|
56 | #ifndef HAVE_EPOLL |
|
|
57 | # define HAVE_EPOLL 0 |
|
|
58 | #endif |
|
|
59 | |
|
|
60 | #ifndef HAVE_REALTIME |
86 | #ifndef CLOCK_REALTIME |
61 | # define HAVE_REALTIME 1 /* posix requirement, but might be slower */ |
87 | # undef EV_USE_REALTIME |
|
|
88 | # define EV_USE_REALTIME 0 |
62 | #endif |
89 | #endif |
|
|
90 | |
|
|
91 | /**/ |
63 | |
92 | |
64 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
65 | #define MAX_BLOCKTIME 60. |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
66 | #define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
67 | |
97 | |
68 | #include "ev.h" |
98 | #include "ev.h" |
|
|
99 | |
|
|
100 | #if __GNUC__ >= 3 |
|
|
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
102 | # define inline inline |
|
|
103 | #else |
|
|
104 | # define expect(expr,value) (expr) |
|
|
105 | # define inline static |
|
|
106 | #endif |
|
|
107 | |
|
|
108 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
110 | |
|
|
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
69 | |
113 | |
70 | typedef struct ev_watcher *W; |
114 | typedef struct ev_watcher *W; |
71 | typedef struct ev_watcher_list *WL; |
115 | typedef struct ev_watcher_list *WL; |
72 | typedef struct ev_watcher_time *WT; |
116 | typedef struct ev_watcher_time *WT; |
73 | |
117 | |
74 | static ev_tstamp now, diff; /* monotonic clock */ |
118 | static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */ |
75 | ev_tstamp ev_now; |
119 | static ev_tstamp rt_now; |
76 | int ev_method; |
120 | static int method; |
77 | |
121 | |
78 | static int have_monotonic; /* runtime */ |
122 | static int have_monotonic; /* runtime */ |
79 | |
123 | |
80 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
81 | static void (*method_modify)(int fd, int oev, int nev); |
125 | static void (*method_modify)(EV_P_ int fd, int oev, int nev); |
82 | static void (*method_poll)(ev_tstamp timeout); |
126 | static void (*method_poll)(EV_P_ ev_tstamp timeout); |
|
|
127 | |
|
|
128 | static int activecnt; /* number of active events */ |
|
|
129 | |
|
|
130 | #if EV_USE_SELECT |
|
|
131 | static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo; |
|
|
132 | static int vec_max; |
|
|
133 | #endif |
|
|
134 | |
|
|
135 | #if EV_USEV_POLL |
|
|
136 | static struct pollfd *polls; |
|
|
137 | static int pollmax, pollcnt; |
|
|
138 | static int *pollidxs; /* maps fds into structure indices */ |
|
|
139 | static int pollidxmax; |
|
|
140 | #endif |
|
|
141 | |
|
|
142 | #if EV_USE_EPOLL |
|
|
143 | static int epoll_fd = -1; |
|
|
144 | |
|
|
145 | static struct epoll_event *events; |
|
|
146 | static int eventmax; |
|
|
147 | #endif |
|
|
148 | |
|
|
149 | #if EV_USE_KQUEUE |
|
|
150 | static int kqueue_fd; |
|
|
151 | static struct kevent *kqueue_changes; |
|
|
152 | static int kqueue_changemax, kqueue_changecnt; |
|
|
153 | static struct kevent *kqueue_events; |
|
|
154 | static int kqueue_eventmax; |
|
|
155 | #endif |
83 | |
156 | |
84 | /*****************************************************************************/ |
157 | /*****************************************************************************/ |
85 | |
158 | |
86 | ev_tstamp |
159 | inline ev_tstamp |
87 | ev_time (void) |
160 | ev_time (void) |
88 | { |
161 | { |
89 | #if HAVE_REALTIME |
162 | #if EV_USE_REALTIME |
90 | struct timespec ts; |
163 | struct timespec ts; |
91 | clock_gettime (CLOCK_REALTIME, &ts); |
164 | clock_gettime (CLOCK_REALTIME, &ts); |
92 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
165 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
93 | #else |
166 | #else |
94 | struct timeval tv; |
167 | struct timeval tv; |
95 | gettimeofday (&tv, 0); |
168 | gettimeofday (&tv, 0); |
96 | return tv.tv_sec + tv.tv_usec * 1e-6; |
169 | return tv.tv_sec + tv.tv_usec * 1e-6; |
97 | #endif |
170 | #endif |
98 | } |
171 | } |
99 | |
172 | |
100 | static ev_tstamp |
173 | inline ev_tstamp |
101 | get_clock (void) |
174 | get_clock (void) |
102 | { |
175 | { |
103 | #if HAVE_MONOTONIC |
176 | #if EV_USE_MONOTONIC |
104 | if (have_monotonic) |
177 | if (expect_true (have_monotonic)) |
105 | { |
178 | { |
106 | struct timespec ts; |
179 | struct timespec ts; |
107 | clock_gettime (CLOCK_MONOTONIC, &ts); |
180 | clock_gettime (CLOCK_MONOTONIC, &ts); |
108 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
181 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
109 | } |
182 | } |
110 | #endif |
183 | #endif |
111 | |
184 | |
112 | return ev_time (); |
185 | return ev_time (); |
113 | } |
186 | } |
114 | |
187 | |
|
|
188 | ev_tstamp |
|
|
189 | ev_now (EV_P) |
|
|
190 | { |
|
|
191 | return rt_now; |
|
|
192 | } |
|
|
193 | |
|
|
194 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
|
|
195 | |
115 | #define array_needsize(base,cur,cnt,init) \ |
196 | #define array_needsize(base,cur,cnt,init) \ |
116 | if ((cnt) > cur) \ |
197 | if (expect_false ((cnt) > cur)) \ |
117 | { \ |
198 | { \ |
118 | int newcnt = cur; \ |
199 | int newcnt = cur; \ |
119 | do \ |
200 | do \ |
120 | { \ |
201 | { \ |
121 | newcnt = (newcnt << 1) | 4 & ~3; \ |
202 | newcnt = array_roundsize (base, newcnt << 1); \ |
122 | } \ |
203 | } \ |
123 | while ((cnt) > newcnt); \ |
204 | while ((cnt) > newcnt); \ |
124 | \ |
205 | \ |
125 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
206 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
126 | init (base + cur, newcnt - cur); \ |
207 | init (base + cur, newcnt - cur); \ |
… | |
… | |
129 | |
210 | |
130 | /*****************************************************************************/ |
211 | /*****************************************************************************/ |
131 | |
212 | |
132 | typedef struct |
213 | typedef struct |
133 | { |
214 | { |
134 | struct ev_io *head; |
215 | struct ev_watcher_list *head; |
135 | unsigned char wev, rev; /* want, received event set */ |
216 | unsigned char events; |
|
|
217 | unsigned char reify; |
136 | } ANFD; |
218 | } ANFD; |
137 | |
219 | |
138 | static ANFD *anfds; |
220 | static ANFD *anfds; |
139 | static int anfdmax; |
221 | static int anfdmax; |
140 | |
222 | |
141 | static int *fdchanges; |
|
|
142 | static int fdchangemax, fdchangecnt; |
|
|
143 | |
|
|
144 | static void |
223 | static void |
145 | anfds_init (ANFD *base, int count) |
224 | anfds_init (ANFD *base, int count) |
146 | { |
225 | { |
147 | while (count--) |
226 | while (count--) |
148 | { |
227 | { |
149 | base->head = 0; |
228 | base->head = 0; |
150 | base->wev = base->rev = EV_NONE; |
229 | base->events = EV_NONE; |
|
|
230 | base->reify = 0; |
|
|
231 | |
151 | ++base; |
232 | ++base; |
152 | } |
233 | } |
153 | } |
234 | } |
154 | |
235 | |
155 | typedef struct |
236 | typedef struct |
156 | { |
237 | { |
157 | W w; |
238 | W w; |
158 | int events; |
239 | int events; |
159 | } ANPENDING; |
240 | } ANPENDING; |
160 | |
241 | |
161 | static ANPENDING *pendings; |
242 | static ANPENDING *pendings [NUMPRI]; |
162 | static int pendingmax, pendingcnt; |
243 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
163 | |
244 | |
164 | static void |
245 | static void |
165 | event (W w, int events) |
246 | event (EV_P_ W w, int events) |
166 | { |
247 | { |
167 | if (w->active) |
248 | if (w->pending) |
168 | { |
249 | { |
169 | w->pending = ++pendingcnt; |
|
|
170 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
171 | pendings [pendingcnt - 1].w = w; |
|
|
172 | pendings [pendingcnt - 1].events = events; |
250 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
251 | return; |
173 | } |
252 | } |
174 | } |
|
|
175 | |
253 | |
|
|
254 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
255 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
256 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
257 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
258 | } |
|
|
259 | |
176 | static void |
260 | static void |
|
|
261 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
262 | { |
|
|
263 | int i; |
|
|
264 | |
|
|
265 | for (i = 0; i < eventcnt; ++i) |
|
|
266 | event (EV_A_ events [i], type); |
|
|
267 | } |
|
|
268 | |
|
|
269 | static void |
177 | fd_event (int fd, int events) |
270 | fd_event (EV_P_ int fd, int events) |
178 | { |
271 | { |
179 | ANFD *anfd = anfds + fd; |
272 | ANFD *anfd = anfds + fd; |
180 | struct ev_io *w; |
273 | struct ev_io *w; |
181 | |
274 | |
182 | for (w = anfd->head; w; w = w->next) |
275 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
183 | { |
276 | { |
184 | int ev = w->events & events; |
277 | int ev = w->events & events; |
185 | |
278 | |
186 | if (ev) |
279 | if (ev) |
187 | event ((W)w, ev); |
280 | event (EV_A_ (W)w, ev); |
188 | } |
281 | } |
189 | } |
282 | } |
190 | |
283 | |
|
|
284 | /*****************************************************************************/ |
|
|
285 | |
|
|
286 | static int *fdchanges; |
|
|
287 | static int fdchangemax, fdchangecnt; |
|
|
288 | |
191 | static void |
289 | static void |
192 | queue_events (W *events, int eventcnt, int type) |
290 | fd_reify (EV_P) |
193 | { |
291 | { |
194 | int i; |
292 | int i; |
195 | |
293 | |
196 | for (i = 0; i < eventcnt; ++i) |
294 | for (i = 0; i < fdchangecnt; ++i) |
197 | event (events [i], type); |
295 | { |
|
|
296 | int fd = fdchanges [i]; |
|
|
297 | ANFD *anfd = anfds + fd; |
|
|
298 | struct ev_io *w; |
|
|
299 | |
|
|
300 | int events = 0; |
|
|
301 | |
|
|
302 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
|
|
303 | events |= w->events; |
|
|
304 | |
|
|
305 | anfd->reify = 0; |
|
|
306 | |
|
|
307 | if (anfd->events != events) |
|
|
308 | { |
|
|
309 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
310 | anfd->events = events; |
|
|
311 | } |
|
|
312 | } |
|
|
313 | |
|
|
314 | fdchangecnt = 0; |
|
|
315 | } |
|
|
316 | |
|
|
317 | static void |
|
|
318 | fd_change (EV_P_ int fd) |
|
|
319 | { |
|
|
320 | if (anfds [fd].reify || fdchangecnt < 0) |
|
|
321 | return; |
|
|
322 | |
|
|
323 | anfds [fd].reify = 1; |
|
|
324 | |
|
|
325 | ++fdchangecnt; |
|
|
326 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
327 | fdchanges [fdchangecnt - 1] = fd; |
|
|
328 | } |
|
|
329 | |
|
|
330 | static void |
|
|
331 | fd_kill (EV_P_ int fd) |
|
|
332 | { |
|
|
333 | struct ev_io *w; |
|
|
334 | |
|
|
335 | while ((w = (struct ev_io *)anfds [fd].head)) |
|
|
336 | { |
|
|
337 | ev_io_stop (EV_A_ w); |
|
|
338 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
339 | } |
198 | } |
340 | } |
199 | |
341 | |
200 | /* called on EBADF to verify fds */ |
342 | /* called on EBADF to verify fds */ |
201 | static void |
343 | static void |
202 | fd_recheck (void) |
344 | fd_ebadf (EV_P) |
203 | { |
345 | { |
204 | int fd; |
346 | int fd; |
205 | |
347 | |
206 | for (fd = 0; fd < anfdmax; ++fd) |
348 | for (fd = 0; fd < anfdmax; ++fd) |
207 | if (anfds [fd].wev) |
349 | if (anfds [fd].events) |
208 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
350 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
209 | while (anfds [fd].head) |
351 | fd_kill (EV_A_ fd); |
|
|
352 | } |
|
|
353 | |
|
|
354 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
355 | static void |
|
|
356 | fd_enomem (EV_P) |
|
|
357 | { |
|
|
358 | int fd = anfdmax; |
|
|
359 | |
|
|
360 | while (fd--) |
|
|
361 | if (anfds [fd].events) |
210 | { |
362 | { |
211 | event ((W)anfds [fd].head, EV_ERROR); |
363 | close (fd); |
212 | evio_stop (anfds [fd].head); |
364 | fd_kill (EV_A_ fd); |
|
|
365 | return; |
213 | } |
366 | } |
214 | } |
367 | } |
215 | |
368 | |
216 | /*****************************************************************************/ |
369 | /*****************************************************************************/ |
217 | |
370 | |
218 | static struct ev_timer **timers; |
371 | static struct ev_timer **timers; |
… | |
… | |
264 | |
417 | |
265 | /*****************************************************************************/ |
418 | /*****************************************************************************/ |
266 | |
419 | |
267 | typedef struct |
420 | typedef struct |
268 | { |
421 | { |
269 | struct ev_signal *head; |
422 | struct ev_watcher_list *head; |
270 | sig_atomic_t gotsig; |
423 | sig_atomic_t volatile gotsig; |
271 | } ANSIG; |
424 | } ANSIG; |
272 | |
425 | |
273 | static ANSIG *signals; |
426 | static ANSIG *signals; |
274 | static int signalmax; |
427 | static int signalmax; |
275 | |
428 | |
276 | static int sigpipe [2]; |
429 | static int sigpipe [2]; |
277 | static sig_atomic_t gotsig; |
430 | static sig_atomic_t volatile gotsig; |
278 | static struct ev_io sigev; |
431 | static struct ev_io sigev; |
279 | |
432 | |
280 | static void |
433 | static void |
281 | signals_init (ANSIG *base, int count) |
434 | signals_init (ANSIG *base, int count) |
282 | { |
435 | { |
283 | while (count--) |
436 | while (count--) |
284 | { |
437 | { |
285 | base->head = 0; |
438 | base->head = 0; |
286 | base->gotsig = 0; |
439 | base->gotsig = 0; |
|
|
440 | |
287 | ++base; |
441 | ++base; |
288 | } |
442 | } |
289 | } |
443 | } |
290 | |
444 | |
291 | static void |
445 | static void |
… | |
… | |
293 | { |
447 | { |
294 | signals [signum - 1].gotsig = 1; |
448 | signals [signum - 1].gotsig = 1; |
295 | |
449 | |
296 | if (!gotsig) |
450 | if (!gotsig) |
297 | { |
451 | { |
|
|
452 | int old_errno = errno; |
298 | gotsig = 1; |
453 | gotsig = 1; |
299 | write (sigpipe [1], &gotsig, 1); |
454 | write (sigpipe [1], &signum, 1); |
|
|
455 | errno = old_errno; |
300 | } |
456 | } |
301 | } |
457 | } |
302 | |
458 | |
303 | static void |
459 | static void |
304 | sigcb (struct ev_io *iow, int revents) |
460 | sigcb (EV_P_ struct ev_io *iow, int revents) |
305 | { |
461 | { |
306 | struct ev_signal *w; |
462 | struct ev_watcher_list *w; |
307 | int sig; |
463 | int signum; |
308 | |
464 | |
|
|
465 | read (sigpipe [0], &revents, 1); |
309 | gotsig = 0; |
466 | gotsig = 0; |
310 | read (sigpipe [0], &revents, 1); |
|
|
311 | |
467 | |
312 | for (sig = signalmax; sig--; ) |
468 | for (signum = signalmax; signum--; ) |
313 | if (signals [sig].gotsig) |
469 | if (signals [signum].gotsig) |
314 | { |
470 | { |
315 | signals [sig].gotsig = 0; |
471 | signals [signum].gotsig = 0; |
316 | |
472 | |
317 | for (w = signals [sig].head; w; w = w->next) |
473 | for (w = signals [signum].head; w; w = w->next) |
318 | event ((W)w, EV_SIGNAL); |
474 | event (EV_A_ (W)w, EV_SIGNAL); |
319 | } |
475 | } |
320 | } |
476 | } |
321 | |
477 | |
322 | static void |
478 | static void |
323 | siginit (void) |
479 | siginit (EV_P) |
324 | { |
480 | { |
|
|
481 | #ifndef WIN32 |
325 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
482 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
326 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
483 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
327 | |
484 | |
328 | /* rather than sort out wether we really need nb, set it */ |
485 | /* rather than sort out wether we really need nb, set it */ |
329 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
486 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
330 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
487 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
488 | #endif |
331 | |
489 | |
332 | evio_set (&sigev, sigpipe [0], EV_READ); |
490 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
333 | evio_start (&sigev); |
491 | ev_io_start (&sigev); |
|
|
492 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
334 | } |
493 | } |
335 | |
494 | |
336 | /*****************************************************************************/ |
495 | /*****************************************************************************/ |
337 | |
496 | |
338 | static struct ev_idle **idles; |
497 | static struct ev_idle **idles; |
… | |
… | |
347 | /*****************************************************************************/ |
506 | /*****************************************************************************/ |
348 | |
507 | |
349 | static struct ev_child *childs [PID_HASHSIZE]; |
508 | static struct ev_child *childs [PID_HASHSIZE]; |
350 | static struct ev_signal childev; |
509 | static struct ev_signal childev; |
351 | |
510 | |
|
|
511 | #ifndef WIN32 |
|
|
512 | |
352 | #ifndef WCONTINUED |
513 | #ifndef WCONTINUED |
353 | # define WCONTINUED 0 |
514 | # define WCONTINUED 0 |
354 | #endif |
515 | #endif |
355 | |
516 | |
356 | static void |
517 | static void |
357 | childcb (struct ev_signal *sw, int revents) |
518 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
358 | { |
519 | { |
359 | struct ev_child *w; |
520 | struct ev_child *w; |
|
|
521 | |
|
|
522 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
523 | if (w->pid == pid || !w->pid) |
|
|
524 | { |
|
|
525 | w->priority = sw->priority; /* need to do it *now* */ |
|
|
526 | w->rpid = pid; |
|
|
527 | w->rstatus = status; |
|
|
528 | event (EV_A_ (W)w, EV_CHILD); |
|
|
529 | } |
|
|
530 | } |
|
|
531 | |
|
|
532 | static void |
|
|
533 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
534 | { |
360 | int pid, status; |
535 | int pid, status; |
361 | |
536 | |
362 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
537 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
363 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
538 | { |
364 | if (w->pid == pid || w->pid == -1) |
539 | /* make sure we are called again until all childs have been reaped */ |
365 | { |
540 | event (EV_A_ (W)sw, EV_SIGNAL); |
366 | w->status = status; |
541 | |
367 | event ((W)w, EV_CHILD); |
542 | child_reap (EV_A_ sw, pid, pid, status); |
368 | } |
543 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
|
|
544 | } |
369 | } |
545 | } |
|
|
546 | |
|
|
547 | #endif |
370 | |
548 | |
371 | /*****************************************************************************/ |
549 | /*****************************************************************************/ |
372 | |
550 | |
|
|
551 | #if EV_USE_KQUEUE |
|
|
552 | # include "ev_kqueue.c" |
|
|
553 | #endif |
373 | #if HAVE_EPOLL |
554 | #if EV_USE_EPOLL |
374 | # include "ev_epoll.c" |
555 | # include "ev_epoll.c" |
375 | #endif |
556 | #endif |
|
|
557 | #if EV_USEV_POLL |
|
|
558 | # include "ev_poll.c" |
|
|
559 | #endif |
376 | #if HAVE_SELECT |
560 | #if EV_USE_SELECT |
377 | # include "ev_select.c" |
561 | # include "ev_select.c" |
378 | #endif |
562 | #endif |
379 | |
563 | |
380 | int |
564 | int |
381 | ev_version_major (void) |
565 | ev_version_major (void) |
… | |
… | |
387 | ev_version_minor (void) |
571 | ev_version_minor (void) |
388 | { |
572 | { |
389 | return EV_VERSION_MINOR; |
573 | return EV_VERSION_MINOR; |
390 | } |
574 | } |
391 | |
575 | |
392 | int ev_init (int flags) |
576 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
577 | static int |
|
|
578 | enable_secure (void) |
393 | { |
579 | { |
|
|
580 | #ifdef WIN32 |
|
|
581 | return 0; |
|
|
582 | #else |
|
|
583 | return getuid () != geteuid () |
|
|
584 | || getgid () != getegid (); |
|
|
585 | #endif |
|
|
586 | } |
|
|
587 | |
|
|
588 | int |
|
|
589 | ev_method (EV_P) |
|
|
590 | { |
|
|
591 | return method; |
|
|
592 | } |
|
|
593 | |
|
|
594 | int |
|
|
595 | ev_init (EV_P_ int methods) |
|
|
596 | { |
394 | if (!ev_method) |
597 | if (!method) |
395 | { |
598 | { |
396 | #if HAVE_MONOTONIC |
599 | #if EV_USE_MONOTONIC |
397 | { |
600 | { |
398 | struct timespec ts; |
601 | struct timespec ts; |
399 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
602 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
400 | have_monotonic = 1; |
603 | have_monotonic = 1; |
401 | } |
604 | } |
402 | #endif |
605 | #endif |
403 | |
606 | |
404 | ev_now = ev_time (); |
607 | rt_now = ev_time (); |
405 | now = get_clock (); |
608 | mn_now = get_clock (); |
|
|
609 | now_floor = mn_now; |
406 | diff = ev_now - now; |
610 | diff = rt_now - mn_now; |
407 | |
611 | |
408 | if (pipe (sigpipe)) |
612 | if (pipe (sigpipe)) |
409 | return 0; |
613 | return 0; |
410 | |
614 | |
|
|
615 | if (methods == EVMETHOD_AUTO) |
|
|
616 | if (!enable_secure () && getenv ("LIBmethodS")) |
|
|
617 | methods = atoi (getenv ("LIBmethodS")); |
|
|
618 | else |
411 | ev_method = EVMETHOD_NONE; |
619 | methods = EVMETHOD_ANY; |
|
|
620 | |
|
|
621 | method = 0; |
|
|
622 | #if EV_USE_KQUEUE |
|
|
623 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
|
|
624 | #endif |
412 | #if HAVE_EPOLL |
625 | #if EV_USE_EPOLL |
413 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
626 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
414 | #endif |
627 | #endif |
|
|
628 | #if EV_USEV_POLL |
|
|
629 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
|
|
630 | #endif |
415 | #if HAVE_SELECT |
631 | #if EV_USE_SELECT |
416 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
632 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
417 | #endif |
633 | #endif |
418 | |
634 | |
419 | if (ev_method) |
635 | if (method) |
420 | { |
636 | { |
421 | evw_init (&sigev, sigcb); |
637 | ev_watcher_init (&sigev, sigcb); |
|
|
638 | ev_set_priority (&sigev, EV_MAXPRI); |
422 | siginit (); |
639 | siginit (EV_A); |
423 | |
640 | |
|
|
641 | #ifndef WIN32 |
424 | evsignal_init (&childev, childcb, SIGCHLD); |
642 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
643 | ev_set_priority (&childev, EV_MAXPRI); |
425 | evsignal_start (&childev); |
644 | ev_signal_start (EV_A_ &childev); |
|
|
645 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
646 | #endif |
426 | } |
647 | } |
427 | } |
648 | } |
428 | |
649 | |
429 | return ev_method; |
650 | return method; |
430 | } |
651 | } |
431 | |
652 | |
432 | /*****************************************************************************/ |
653 | /*****************************************************************************/ |
433 | |
654 | |
434 | void |
655 | void |
435 | ev_prefork (void) |
656 | ev_fork_prepare (void) |
436 | { |
657 | { |
437 | /* nop */ |
658 | /* nop */ |
438 | } |
659 | } |
439 | |
660 | |
440 | void |
661 | void |
441 | ev_postfork_parent (void) |
662 | ev_fork_parent (void) |
442 | { |
663 | { |
443 | /* nop */ |
664 | /* nop */ |
444 | } |
665 | } |
445 | |
666 | |
446 | void |
667 | void |
447 | ev_postfork_child (void) |
668 | ev_fork_child (void) |
448 | { |
669 | { |
449 | #if HAVE_EPOLL |
670 | #if EV_USE_EPOLL |
450 | if (ev_method == EVMETHOD_EPOLL) |
671 | if (method == EVMETHOD_EPOLL) |
451 | epoll_postfork_child (); |
672 | epoll_postfork_child (); |
452 | #endif |
673 | #endif |
453 | |
674 | |
454 | evio_stop (&sigev); |
675 | ev_io_stop (&sigev); |
455 | close (sigpipe [0]); |
676 | close (sigpipe [0]); |
456 | close (sigpipe [1]); |
677 | close (sigpipe [1]); |
457 | pipe (sigpipe); |
678 | pipe (sigpipe); |
458 | siginit (); |
679 | siginit (); |
459 | } |
680 | } |
460 | |
681 | |
461 | /*****************************************************************************/ |
682 | /*****************************************************************************/ |
462 | |
683 | |
463 | static void |
684 | static void |
464 | fd_reify (void) |
685 | call_pending (EV_P) |
465 | { |
686 | { |
466 | int i; |
687 | int pri; |
467 | |
688 | |
468 | for (i = 0; i < fdchangecnt; ++i) |
689 | for (pri = NUMPRI; pri--; ) |
469 | { |
690 | while (pendingcnt [pri]) |
470 | int fd = fdchanges [i]; |
|
|
471 | ANFD *anfd = anfds + fd; |
|
|
472 | struct ev_io *w; |
|
|
473 | |
|
|
474 | int wev = 0; |
|
|
475 | |
|
|
476 | for (w = anfd->head; w; w = w->next) |
|
|
477 | wev |= w->events; |
|
|
478 | |
|
|
479 | if (anfd->wev != wev) |
|
|
480 | { |
691 | { |
481 | method_modify (fd, anfd->wev, wev); |
|
|
482 | anfd->wev = wev; |
|
|
483 | } |
|
|
484 | } |
|
|
485 | |
|
|
486 | fdchangecnt = 0; |
|
|
487 | } |
|
|
488 | |
|
|
489 | static void |
|
|
490 | call_pending (void) |
|
|
491 | { |
|
|
492 | while (pendingcnt) |
|
|
493 | { |
|
|
494 | ANPENDING *p = pendings + --pendingcnt; |
692 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
495 | |
693 | |
496 | if (p->w) |
694 | if (p->w) |
497 | { |
695 | { |
498 | p->w->pending = 0; |
696 | p->w->pending = 0; |
499 | p->w->cb (p->w, p->events); |
697 | p->w->cb (EV_A_ p->w, p->events); |
500 | } |
698 | } |
501 | } |
699 | } |
502 | } |
700 | } |
503 | |
701 | |
504 | static void |
702 | static void |
505 | timers_reify (void) |
703 | timers_reify (EV_P) |
506 | { |
704 | { |
507 | while (timercnt && timers [0]->at <= now) |
705 | while (timercnt && timers [0]->at <= mn_now) |
508 | { |
706 | { |
509 | struct ev_timer *w = timers [0]; |
707 | struct ev_timer *w = timers [0]; |
510 | |
|
|
511 | event ((W)w, EV_TIMEOUT); |
|
|
512 | |
708 | |
513 | /* first reschedule or stop timer */ |
709 | /* first reschedule or stop timer */ |
514 | if (w->repeat) |
710 | if (w->repeat) |
515 | { |
711 | { |
|
|
712 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
516 | w->at = now + w->repeat; |
713 | w->at = mn_now + w->repeat; |
517 | assert (("timer timeout in the past, negative repeat?", w->at > now)); |
|
|
518 | downheap ((WT *)timers, timercnt, 0); |
714 | downheap ((WT *)timers, timercnt, 0); |
519 | } |
715 | } |
520 | else |
716 | else |
521 | evtimer_stop (w); /* nonrepeating: stop timer */ |
717 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
522 | } |
|
|
523 | } |
|
|
524 | |
718 | |
|
|
719 | event ((W)w, EV_TIMEOUT); |
|
|
720 | } |
|
|
721 | } |
|
|
722 | |
525 | static void |
723 | static void |
526 | periodics_reify (void) |
724 | periodics_reify (EV_P) |
527 | { |
725 | { |
528 | while (periodiccnt && periodics [0]->at <= ev_now) |
726 | while (periodiccnt && periodics [0]->at <= rt_now) |
529 | { |
727 | { |
530 | struct ev_periodic *w = periodics [0]; |
728 | struct ev_periodic *w = periodics [0]; |
531 | |
729 | |
532 | /* first reschedule or stop timer */ |
730 | /* first reschedule or stop timer */ |
533 | if (w->interval) |
731 | if (w->interval) |
534 | { |
732 | { |
535 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
733 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
536 | assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); |
734 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
537 | downheap ((WT *)periodics, periodiccnt, 0); |
735 | downheap ((WT *)periodics, periodiccnt, 0); |
538 | } |
736 | } |
539 | else |
737 | else |
540 | evperiodic_stop (w); /* nonrepeating: stop timer */ |
738 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
541 | |
739 | |
542 | event ((W)w, EV_TIMEOUT); |
740 | event (EV_A_ (W)w, EV_PERIODIC); |
543 | } |
741 | } |
544 | } |
742 | } |
545 | |
743 | |
546 | static void |
744 | static void |
547 | periodics_reschedule (ev_tstamp diff) |
745 | periodics_reschedule (EV_P_ ev_tstamp diff) |
548 | { |
746 | { |
549 | int i; |
747 | int i; |
550 | |
748 | |
551 | /* adjust periodics after time jump */ |
749 | /* adjust periodics after time jump */ |
552 | for (i = 0; i < periodiccnt; ++i) |
750 | for (i = 0; i < periodiccnt; ++i) |
553 | { |
751 | { |
554 | struct ev_periodic *w = periodics [i]; |
752 | struct ev_periodic *w = periodics [i]; |
555 | |
753 | |
556 | if (w->interval) |
754 | if (w->interval) |
557 | { |
755 | { |
558 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
756 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
559 | |
757 | |
560 | if (fabs (diff) >= 1e-4) |
758 | if (fabs (diff) >= 1e-4) |
561 | { |
759 | { |
562 | evperiodic_stop (w); |
760 | ev_periodic_stop (EV_A_ w); |
563 | evperiodic_start (w); |
761 | ev_periodic_start (EV_A_ w); |
564 | |
762 | |
565 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
763 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
566 | } |
764 | } |
567 | } |
765 | } |
568 | } |
766 | } |
569 | } |
767 | } |
570 | |
768 | |
|
|
769 | inline int |
|
|
770 | time_update_monotonic (EV_P) |
|
|
771 | { |
|
|
772 | mn_now = get_clock (); |
|
|
773 | |
|
|
774 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
775 | { |
|
|
776 | rt_now = mn_now + diff; |
|
|
777 | return 0; |
|
|
778 | } |
|
|
779 | else |
|
|
780 | { |
|
|
781 | now_floor = mn_now; |
|
|
782 | rt_now = ev_time (); |
|
|
783 | return 1; |
|
|
784 | } |
|
|
785 | } |
|
|
786 | |
571 | static void |
787 | static void |
572 | time_update (void) |
788 | time_update (EV_P) |
573 | { |
789 | { |
574 | int i; |
790 | int i; |
575 | |
791 | |
576 | ev_now = ev_time (); |
792 | #if EV_USE_MONOTONIC |
577 | |
|
|
578 | if (have_monotonic) |
793 | if (expect_true (have_monotonic)) |
579 | { |
794 | { |
580 | ev_tstamp odiff = diff; |
795 | if (time_update_monotonic (EV_A)) |
581 | |
|
|
582 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
583 | { |
796 | { |
584 | now = get_clock (); |
797 | ev_tstamp odiff = diff; |
|
|
798 | |
|
|
799 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
800 | { |
585 | diff = ev_now - now; |
801 | diff = rt_now - mn_now; |
586 | |
802 | |
587 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
803 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
588 | return; /* all is well */ |
804 | return; /* all is well */ |
589 | |
805 | |
590 | ev_now = ev_time (); |
806 | rt_now = ev_time (); |
|
|
807 | mn_now = get_clock (); |
|
|
808 | now_floor = mn_now; |
|
|
809 | } |
|
|
810 | |
|
|
811 | periodics_reschedule (EV_A_ diff - odiff); |
|
|
812 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
591 | } |
813 | } |
592 | |
|
|
593 | periodics_reschedule (diff - odiff); |
|
|
594 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
595 | } |
814 | } |
596 | else |
815 | else |
|
|
816 | #endif |
597 | { |
817 | { |
598 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
818 | rt_now = ev_time (); |
|
|
819 | |
|
|
820 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
599 | { |
821 | { |
600 | periodics_reschedule (ev_now - now); |
822 | periodics_reschedule (EV_A_ rt_now - mn_now); |
601 | |
823 | |
602 | /* adjust timers. this is easy, as the offset is the same for all */ |
824 | /* adjust timers. this is easy, as the offset is the same for all */ |
603 | for (i = 0; i < timercnt; ++i) |
825 | for (i = 0; i < timercnt; ++i) |
604 | timers [i]->at += diff; |
826 | timers [i]->at += diff; |
605 | } |
827 | } |
606 | |
828 | |
607 | now = ev_now; |
829 | mn_now = rt_now; |
608 | } |
830 | } |
609 | } |
831 | } |
610 | |
832 | |
611 | int ev_loop_done; |
833 | void |
|
|
834 | ev_ref (EV_P) |
|
|
835 | { |
|
|
836 | ++activecnt; |
|
|
837 | } |
612 | |
838 | |
|
|
839 | void |
|
|
840 | ev_unref (EV_P) |
|
|
841 | { |
|
|
842 | --activecnt; |
|
|
843 | } |
|
|
844 | |
|
|
845 | static int loop_done; |
|
|
846 | |
|
|
847 | void |
613 | void ev_loop (int flags) |
848 | ev_loop (EV_P_ int flags) |
614 | { |
849 | { |
615 | double block; |
850 | double block; |
616 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
851 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
617 | |
852 | |
618 | do |
853 | do |
619 | { |
854 | { |
620 | /* queue check watchers (and execute them) */ |
855 | /* queue check watchers (and execute them) */ |
621 | if (preparecnt) |
856 | if (expect_false (preparecnt)) |
622 | { |
857 | { |
623 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
858 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
624 | call_pending (); |
859 | call_pending (EV_A); |
625 | } |
860 | } |
626 | |
861 | |
627 | /* update fd-related kernel structures */ |
862 | /* update fd-related kernel structures */ |
628 | fd_reify (); |
863 | fd_reify (EV_A); |
629 | |
864 | |
630 | /* calculate blocking time */ |
865 | /* calculate blocking time */ |
631 | |
866 | |
632 | /* we only need this for !monotonic clockor timers, but as we basically |
867 | /* we only need this for !monotonic clockor timers, but as we basically |
633 | always have timers, we just calculate it always */ |
868 | always have timers, we just calculate it always */ |
|
|
869 | #if EV_USE_MONOTONIC |
|
|
870 | if (expect_true (have_monotonic)) |
|
|
871 | time_update_monotonic (EV_A); |
|
|
872 | else |
|
|
873 | #endif |
|
|
874 | { |
634 | ev_now = ev_time (); |
875 | rt_now = ev_time (); |
|
|
876 | mn_now = rt_now; |
|
|
877 | } |
635 | |
878 | |
636 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
879 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
637 | block = 0.; |
880 | block = 0.; |
638 | else |
881 | else |
639 | { |
882 | { |
640 | block = MAX_BLOCKTIME; |
883 | block = MAX_BLOCKTIME; |
641 | |
884 | |
642 | if (timercnt) |
885 | if (timercnt) |
643 | { |
886 | { |
644 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
887 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
645 | if (block > to) block = to; |
888 | if (block > to) block = to; |
646 | } |
889 | } |
647 | |
890 | |
648 | if (periodiccnt) |
891 | if (periodiccnt) |
649 | { |
892 | { |
650 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
893 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
651 | if (block > to) block = to; |
894 | if (block > to) block = to; |
652 | } |
895 | } |
653 | |
896 | |
654 | if (block < 0.) block = 0.; |
897 | if (block < 0.) block = 0.; |
655 | } |
898 | } |
656 | |
899 | |
657 | method_poll (block); |
900 | method_poll (EV_A_ block); |
658 | |
901 | |
659 | /* update ev_now, do magic */ |
902 | /* update rt_now, do magic */ |
660 | time_update (); |
903 | time_update (EV_A); |
661 | |
904 | |
662 | /* queue pending timers and reschedule them */ |
905 | /* queue pending timers and reschedule them */ |
663 | timers_reify (); /* relative timers called last */ |
906 | timers_reify (EV_A); /* relative timers called last */ |
664 | periodics_reify (); /* absolute timers called first */ |
907 | periodics_reify (EV_A); /* absolute timers called first */ |
665 | |
908 | |
666 | /* queue idle watchers unless io or timers are pending */ |
909 | /* queue idle watchers unless io or timers are pending */ |
667 | if (!pendingcnt) |
910 | if (!pendingcnt) |
668 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
911 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
669 | |
912 | |
670 | /* queue check watchers, to be executed first */ |
913 | /* queue check watchers, to be executed first */ |
671 | if (checkcnt) |
914 | if (checkcnt) |
672 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
915 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
673 | |
916 | |
674 | call_pending (); |
917 | call_pending (EV_A); |
675 | } |
918 | } |
676 | while (!ev_loop_done); |
919 | while (activecnt && !loop_done); |
677 | |
920 | |
678 | if (ev_loop_done != 2) |
921 | if (loop_done != 2) |
679 | ev_loop_done = 0; |
922 | loop_done = 0; |
|
|
923 | } |
|
|
924 | |
|
|
925 | void |
|
|
926 | ev_unloop (EV_P_ int how) |
|
|
927 | { |
|
|
928 | loop_done = how; |
680 | } |
929 | } |
681 | |
930 | |
682 | /*****************************************************************************/ |
931 | /*****************************************************************************/ |
683 | |
932 | |
684 | static void |
933 | inline void |
685 | wlist_add (WL *head, WL elem) |
934 | wlist_add (WL *head, WL elem) |
686 | { |
935 | { |
687 | elem->next = *head; |
936 | elem->next = *head; |
688 | *head = elem; |
937 | *head = elem; |
689 | } |
938 | } |
690 | |
939 | |
691 | static void |
940 | inline void |
692 | wlist_del (WL *head, WL elem) |
941 | wlist_del (WL *head, WL elem) |
693 | { |
942 | { |
694 | while (*head) |
943 | while (*head) |
695 | { |
944 | { |
696 | if (*head == elem) |
945 | if (*head == elem) |
… | |
… | |
701 | |
950 | |
702 | head = &(*head)->next; |
951 | head = &(*head)->next; |
703 | } |
952 | } |
704 | } |
953 | } |
705 | |
954 | |
706 | static void |
955 | inline void |
707 | ev_clear (W w) |
956 | ev_clear_pending (EV_P_ W w) |
708 | { |
957 | { |
709 | if (w->pending) |
958 | if (w->pending) |
710 | { |
959 | { |
711 | pendings [w->pending - 1].w = 0; |
960 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
712 | w->pending = 0; |
961 | w->pending = 0; |
713 | } |
962 | } |
714 | } |
963 | } |
715 | |
964 | |
716 | static void |
965 | inline void |
717 | ev_start (W w, int active) |
966 | ev_start (EV_P_ W w, int active) |
718 | { |
967 | { |
|
|
968 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
969 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
970 | |
719 | w->active = active; |
971 | w->active = active; |
|
|
972 | ev_ref (EV_A); |
720 | } |
973 | } |
721 | |
974 | |
722 | static void |
975 | inline void |
723 | ev_stop (W w) |
976 | ev_stop (EV_P_ W w) |
724 | { |
977 | { |
|
|
978 | ev_unref (EV_A); |
725 | w->active = 0; |
979 | w->active = 0; |
726 | } |
980 | } |
727 | |
981 | |
728 | /*****************************************************************************/ |
982 | /*****************************************************************************/ |
729 | |
983 | |
730 | void |
984 | void |
731 | evio_start (struct ev_io *w) |
985 | ev_io_start (EV_P_ struct ev_io *w) |
732 | { |
986 | { |
|
|
987 | int fd = w->fd; |
|
|
988 | |
733 | if (ev_is_active (w)) |
989 | if (ev_is_active (w)) |
734 | return; |
990 | return; |
735 | |
991 | |
736 | int fd = w->fd; |
992 | assert (("ev_io_start called with negative fd", fd >= 0)); |
737 | |
993 | |
738 | ev_start ((W)w, 1); |
994 | ev_start (EV_A_ (W)w, 1); |
739 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
995 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
740 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
996 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
741 | |
997 | |
742 | ++fdchangecnt; |
998 | fd_change (EV_A_ fd); |
743 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
744 | fdchanges [fdchangecnt - 1] = fd; |
|
|
745 | |
|
|
746 | if (w->fd == 9) |
|
|
747 | printf ("start %p:%x\n", w, w->events);//D |
|
|
748 | } |
999 | } |
749 | |
1000 | |
750 | void |
1001 | void |
751 | evio_stop (struct ev_io *w) |
1002 | ev_io_stop (EV_P_ struct ev_io *w) |
752 | { |
1003 | { |
753 | if (w->fd == 9) |
1004 | ev_clear_pending (EV_A_ (W)w); |
754 | printf ("stop %p:%x\n", w, w->events);//D |
|
|
755 | ev_clear ((W)w); |
|
|
756 | if (!ev_is_active (w)) |
1005 | if (!ev_is_active (w)) |
757 | return; |
1006 | return; |
758 | |
1007 | |
759 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1008 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
760 | ev_stop ((W)w); |
1009 | ev_stop (EV_A_ (W)w); |
761 | |
1010 | |
762 | ++fdchangecnt; |
1011 | fd_change (EV_A_ w->fd); |
763 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
764 | fdchanges [fdchangecnt - 1] = w->fd; |
|
|
765 | } |
1012 | } |
766 | |
1013 | |
767 | void |
1014 | void |
768 | evtimer_start (struct ev_timer *w) |
1015 | ev_timer_start (EV_P_ struct ev_timer *w) |
769 | { |
1016 | { |
770 | if (ev_is_active (w)) |
1017 | if (ev_is_active (w)) |
771 | return; |
1018 | return; |
772 | |
1019 | |
773 | w->at += now; |
1020 | w->at += mn_now; |
774 | |
1021 | |
775 | assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); |
1022 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
776 | |
1023 | |
777 | ev_start ((W)w, ++timercnt); |
1024 | ev_start (EV_A_ (W)w, ++timercnt); |
778 | array_needsize (timers, timermax, timercnt, ); |
1025 | array_needsize (timers, timermax, timercnt, ); |
779 | timers [timercnt - 1] = w; |
1026 | timers [timercnt - 1] = w; |
780 | upheap ((WT *)timers, timercnt - 1); |
1027 | upheap ((WT *)timers, timercnt - 1); |
781 | } |
1028 | } |
782 | |
1029 | |
783 | void |
1030 | void |
784 | evtimer_stop (struct ev_timer *w) |
1031 | ev_timer_stop (EV_P_ struct ev_timer *w) |
785 | { |
1032 | { |
786 | ev_clear ((W)w); |
1033 | ev_clear_pending (EV_A_ (W)w); |
787 | if (!ev_is_active (w)) |
1034 | if (!ev_is_active (w)) |
788 | return; |
1035 | return; |
789 | |
1036 | |
790 | if (w->active < timercnt--) |
1037 | if (w->active < timercnt--) |
791 | { |
1038 | { |
… | |
… | |
793 | downheap ((WT *)timers, timercnt, w->active - 1); |
1040 | downheap ((WT *)timers, timercnt, w->active - 1); |
794 | } |
1041 | } |
795 | |
1042 | |
796 | w->at = w->repeat; |
1043 | w->at = w->repeat; |
797 | |
1044 | |
798 | ev_stop ((W)w); |
1045 | ev_stop (EV_A_ (W)w); |
799 | } |
1046 | } |
800 | |
1047 | |
801 | void |
1048 | void |
802 | evtimer_again (struct ev_timer *w) |
1049 | ev_timer_again (EV_P_ struct ev_timer *w) |
803 | { |
1050 | { |
804 | if (ev_is_active (w)) |
1051 | if (ev_is_active (w)) |
805 | { |
1052 | { |
806 | if (w->repeat) |
1053 | if (w->repeat) |
807 | { |
1054 | { |
808 | w->at = now + w->repeat; |
1055 | w->at = mn_now + w->repeat; |
809 | downheap ((WT *)timers, timercnt, w->active - 1); |
1056 | downheap ((WT *)timers, timercnt, w->active - 1); |
810 | } |
1057 | } |
811 | else |
1058 | else |
812 | evtimer_stop (w); |
1059 | ev_timer_stop (EV_A_ w); |
813 | } |
1060 | } |
814 | else if (w->repeat) |
1061 | else if (w->repeat) |
815 | evtimer_start (w); |
1062 | ev_timer_start (EV_A_ w); |
816 | } |
1063 | } |
817 | |
1064 | |
818 | void |
1065 | void |
819 | evperiodic_start (struct ev_periodic *w) |
1066 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
820 | { |
1067 | { |
821 | if (ev_is_active (w)) |
1068 | if (ev_is_active (w)) |
822 | return; |
1069 | return; |
823 | |
1070 | |
824 | assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); |
1071 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
825 | |
1072 | |
826 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1073 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
827 | if (w->interval) |
1074 | if (w->interval) |
828 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1075 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
829 | |
1076 | |
830 | ev_start ((W)w, ++periodiccnt); |
1077 | ev_start (EV_A_ (W)w, ++periodiccnt); |
831 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1078 | array_needsize (periodics, periodicmax, periodiccnt, ); |
832 | periodics [periodiccnt - 1] = w; |
1079 | periodics [periodiccnt - 1] = w; |
833 | upheap ((WT *)periodics, periodiccnt - 1); |
1080 | upheap ((WT *)periodics, periodiccnt - 1); |
834 | } |
1081 | } |
835 | |
1082 | |
836 | void |
1083 | void |
837 | evperiodic_stop (struct ev_periodic *w) |
1084 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
838 | { |
1085 | { |
839 | ev_clear ((W)w); |
1086 | ev_clear_pending (EV_A_ (W)w); |
840 | if (!ev_is_active (w)) |
1087 | if (!ev_is_active (w)) |
841 | return; |
1088 | return; |
842 | |
1089 | |
843 | if (w->active < periodiccnt--) |
1090 | if (w->active < periodiccnt--) |
844 | { |
1091 | { |
845 | periodics [w->active - 1] = periodics [periodiccnt]; |
1092 | periodics [w->active - 1] = periodics [periodiccnt]; |
846 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1093 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
847 | } |
1094 | } |
848 | |
1095 | |
849 | ev_stop ((W)w); |
1096 | ev_stop (EV_A_ (W)w); |
850 | } |
1097 | } |
851 | |
1098 | |
|
|
1099 | #ifndef SA_RESTART |
|
|
1100 | # define SA_RESTART 0 |
|
|
1101 | #endif |
|
|
1102 | |
852 | void |
1103 | void |
853 | evsignal_start (struct ev_signal *w) |
1104 | ev_signal_start (EV_P_ struct ev_signal *w) |
854 | { |
1105 | { |
855 | if (ev_is_active (w)) |
1106 | if (ev_is_active (w)) |
856 | return; |
1107 | return; |
857 | |
1108 | |
|
|
1109 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1110 | |
858 | ev_start ((W)w, 1); |
1111 | ev_start (EV_A_ (W)w, 1); |
859 | array_needsize (signals, signalmax, w->signum, signals_init); |
1112 | array_needsize (signals, signalmax, w->signum, signals_init); |
860 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1113 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
861 | |
1114 | |
862 | if (!w->next) |
1115 | if (!w->next) |
863 | { |
1116 | { |
864 | struct sigaction sa; |
1117 | struct sigaction sa; |
865 | sa.sa_handler = sighandler; |
1118 | sa.sa_handler = sighandler; |
866 | sigfillset (&sa.sa_mask); |
1119 | sigfillset (&sa.sa_mask); |
867 | sa.sa_flags = 0; |
1120 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
868 | sigaction (w->signum, &sa, 0); |
1121 | sigaction (w->signum, &sa, 0); |
869 | } |
1122 | } |
870 | } |
1123 | } |
871 | |
1124 | |
872 | void |
1125 | void |
873 | evsignal_stop (struct ev_signal *w) |
1126 | ev_signal_stop (EV_P_ struct ev_signal *w) |
874 | { |
1127 | { |
875 | ev_clear ((W)w); |
1128 | ev_clear_pending (EV_A_ (W)w); |
876 | if (!ev_is_active (w)) |
1129 | if (!ev_is_active (w)) |
877 | return; |
1130 | return; |
878 | |
1131 | |
879 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1132 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
880 | ev_stop ((W)w); |
1133 | ev_stop (EV_A_ (W)w); |
881 | |
1134 | |
882 | if (!signals [w->signum - 1].head) |
1135 | if (!signals [w->signum - 1].head) |
883 | signal (w->signum, SIG_DFL); |
1136 | signal (w->signum, SIG_DFL); |
884 | } |
1137 | } |
885 | |
1138 | |
|
|
1139 | void |
886 | void evidle_start (struct ev_idle *w) |
1140 | ev_idle_start (EV_P_ struct ev_idle *w) |
887 | { |
1141 | { |
888 | if (ev_is_active (w)) |
1142 | if (ev_is_active (w)) |
889 | return; |
1143 | return; |
890 | |
1144 | |
891 | ev_start ((W)w, ++idlecnt); |
1145 | ev_start (EV_A_ (W)w, ++idlecnt); |
892 | array_needsize (idles, idlemax, idlecnt, ); |
1146 | array_needsize (idles, idlemax, idlecnt, ); |
893 | idles [idlecnt - 1] = w; |
1147 | idles [idlecnt - 1] = w; |
894 | } |
1148 | } |
895 | |
1149 | |
|
|
1150 | void |
896 | void evidle_stop (struct ev_idle *w) |
1151 | ev_idle_stop (EV_P_ struct ev_idle *w) |
897 | { |
1152 | { |
898 | ev_clear ((W)w); |
1153 | ev_clear_pending (EV_A_ (W)w); |
899 | if (ev_is_active (w)) |
1154 | if (ev_is_active (w)) |
900 | return; |
1155 | return; |
901 | |
1156 | |
902 | idles [w->active - 1] = idles [--idlecnt]; |
1157 | idles [w->active - 1] = idles [--idlecnt]; |
903 | ev_stop ((W)w); |
1158 | ev_stop (EV_A_ (W)w); |
904 | } |
1159 | } |
905 | |
1160 | |
|
|
1161 | void |
906 | void evprepare_start (struct ev_prepare *w) |
1162 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
907 | { |
1163 | { |
908 | if (ev_is_active (w)) |
1164 | if (ev_is_active (w)) |
909 | return; |
1165 | return; |
910 | |
1166 | |
911 | ev_start ((W)w, ++preparecnt); |
1167 | ev_start (EV_A_ (W)w, ++preparecnt); |
912 | array_needsize (prepares, preparemax, preparecnt, ); |
1168 | array_needsize (prepares, preparemax, preparecnt, ); |
913 | prepares [preparecnt - 1] = w; |
1169 | prepares [preparecnt - 1] = w; |
914 | } |
1170 | } |
915 | |
1171 | |
|
|
1172 | void |
916 | void evprepare_stop (struct ev_prepare *w) |
1173 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
917 | { |
1174 | { |
918 | ev_clear ((W)w); |
1175 | ev_clear_pending (EV_A_ (W)w); |
919 | if (ev_is_active (w)) |
1176 | if (ev_is_active (w)) |
920 | return; |
1177 | return; |
921 | |
1178 | |
922 | prepares [w->active - 1] = prepares [--preparecnt]; |
1179 | prepares [w->active - 1] = prepares [--preparecnt]; |
923 | ev_stop ((W)w); |
1180 | ev_stop (EV_A_ (W)w); |
924 | } |
1181 | } |
925 | |
1182 | |
|
|
1183 | void |
926 | void evcheck_start (struct ev_check *w) |
1184 | ev_check_start (EV_P_ struct ev_check *w) |
927 | { |
1185 | { |
928 | if (ev_is_active (w)) |
1186 | if (ev_is_active (w)) |
929 | return; |
1187 | return; |
930 | |
1188 | |
931 | ev_start ((W)w, ++checkcnt); |
1189 | ev_start (EV_A_ (W)w, ++checkcnt); |
932 | array_needsize (checks, checkmax, checkcnt, ); |
1190 | array_needsize (checks, checkmax, checkcnt, ); |
933 | checks [checkcnt - 1] = w; |
1191 | checks [checkcnt - 1] = w; |
934 | } |
1192 | } |
935 | |
1193 | |
|
|
1194 | void |
936 | void evcheck_stop (struct ev_check *w) |
1195 | ev_check_stop (EV_P_ struct ev_check *w) |
937 | { |
1196 | { |
938 | ev_clear ((W)w); |
1197 | ev_clear_pending (EV_A_ (W)w); |
939 | if (ev_is_active (w)) |
1198 | if (ev_is_active (w)) |
940 | return; |
1199 | return; |
941 | |
1200 | |
942 | checks [w->active - 1] = checks [--checkcnt]; |
1201 | checks [w->active - 1] = checks [--checkcnt]; |
943 | ev_stop ((W)w); |
1202 | ev_stop (EV_A_ (W)w); |
944 | } |
1203 | } |
945 | |
1204 | |
|
|
1205 | void |
946 | void evchild_start (struct ev_child *w) |
1206 | ev_child_start (EV_P_ struct ev_child *w) |
947 | { |
1207 | { |
948 | if (ev_is_active (w)) |
1208 | if (ev_is_active (w)) |
949 | return; |
1209 | return; |
950 | |
1210 | |
951 | ev_start ((W)w, 1); |
1211 | ev_start (EV_A_ (W)w, 1); |
952 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1212 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
953 | } |
1213 | } |
954 | |
1214 | |
|
|
1215 | void |
955 | void evchild_stop (struct ev_child *w) |
1216 | ev_child_stop (EV_P_ struct ev_child *w) |
956 | { |
1217 | { |
957 | ev_clear ((W)w); |
1218 | ev_clear_pending (EV_A_ (W)w); |
958 | if (ev_is_active (w)) |
1219 | if (ev_is_active (w)) |
959 | return; |
1220 | return; |
960 | |
1221 | |
961 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1222 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
962 | ev_stop ((W)w); |
1223 | ev_stop (EV_A_ (W)w); |
963 | } |
1224 | } |
964 | |
1225 | |
965 | /*****************************************************************************/ |
1226 | /*****************************************************************************/ |
966 | |
1227 | |
967 | struct ev_once |
1228 | struct ev_once |
… | |
… | |
971 | void (*cb)(int revents, void *arg); |
1232 | void (*cb)(int revents, void *arg); |
972 | void *arg; |
1233 | void *arg; |
973 | }; |
1234 | }; |
974 | |
1235 | |
975 | static void |
1236 | static void |
976 | once_cb (struct ev_once *once, int revents) |
1237 | once_cb (EV_P_ struct ev_once *once, int revents) |
977 | { |
1238 | { |
978 | void (*cb)(int revents, void *arg) = once->cb; |
1239 | void (*cb)(int revents, void *arg) = once->cb; |
979 | void *arg = once->arg; |
1240 | void *arg = once->arg; |
980 | |
1241 | |
981 | evio_stop (&once->io); |
1242 | ev_io_stop (EV_A_ &once->io); |
982 | evtimer_stop (&once->to); |
1243 | ev_timer_stop (EV_A_ &once->to); |
983 | free (once); |
1244 | free (once); |
984 | |
1245 | |
985 | cb (revents, arg); |
1246 | cb (revents, arg); |
986 | } |
1247 | } |
987 | |
1248 | |
988 | static void |
1249 | static void |
989 | once_cb_io (struct ev_io *w, int revents) |
1250 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
990 | { |
1251 | { |
991 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1252 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
992 | } |
1253 | } |
993 | |
1254 | |
994 | static void |
1255 | static void |
995 | once_cb_to (struct ev_timer *w, int revents) |
1256 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
996 | { |
1257 | { |
997 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1258 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
998 | } |
1259 | } |
999 | |
1260 | |
1000 | void |
1261 | void |
1001 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1262 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1002 | { |
1263 | { |
1003 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1264 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1004 | |
1265 | |
1005 | if (!once) |
1266 | if (!once) |
1006 | cb (EV_ERROR, arg); |
1267 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1007 | else |
1268 | else |
1008 | { |
1269 | { |
1009 | once->cb = cb; |
1270 | once->cb = cb; |
1010 | once->arg = arg; |
1271 | once->arg = arg; |
1011 | |
1272 | |
1012 | evw_init (&once->io, once_cb_io); |
1273 | ev_watcher_init (&once->io, once_cb_io); |
1013 | |
|
|
1014 | if (fd >= 0) |
1274 | if (fd >= 0) |
1015 | { |
1275 | { |
1016 | evio_set (&once->io, fd, events); |
1276 | ev_io_set (&once->io, fd, events); |
1017 | evio_start (&once->io); |
1277 | ev_io_start (EV_A_ &once->io); |
1018 | } |
1278 | } |
1019 | |
1279 | |
1020 | evw_init (&once->to, once_cb_to); |
1280 | ev_watcher_init (&once->to, once_cb_to); |
1021 | |
|
|
1022 | if (timeout >= 0.) |
1281 | if (timeout >= 0.) |
1023 | { |
1282 | { |
1024 | evtimer_set (&once->to, timeout, 0.); |
1283 | ev_timer_set (&once->to, timeout, 0.); |
1025 | evtimer_start (&once->to); |
1284 | ev_timer_start (EV_A_ &once->to); |
1026 | } |
1285 | } |
1027 | } |
1286 | } |
1028 | } |
1287 | } |
1029 | |
1288 | |
1030 | /*****************************************************************************/ |
1289 | /*****************************************************************************/ |
… | |
… | |
1041 | |
1300 | |
1042 | static void |
1301 | static void |
1043 | ocb (struct ev_timer *w, int revents) |
1302 | ocb (struct ev_timer *w, int revents) |
1044 | { |
1303 | { |
1045 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
1304 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
1046 | evtimer_stop (w); |
1305 | ev_timer_stop (w); |
1047 | evtimer_start (w); |
1306 | ev_timer_start (w); |
1048 | } |
1307 | } |
1049 | |
1308 | |
1050 | static void |
1309 | static void |
1051 | scb (struct ev_signal *w, int revents) |
1310 | scb (struct ev_signal *w, int revents) |
1052 | { |
1311 | { |
1053 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
1312 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
1054 | evio_stop (&wio); |
1313 | ev_io_stop (&wio); |
1055 | evio_start (&wio); |
1314 | ev_io_start (&wio); |
1056 | } |
1315 | } |
1057 | |
1316 | |
1058 | static void |
1317 | static void |
1059 | gcb (struct ev_signal *w, int revents) |
1318 | gcb (struct ev_signal *w, int revents) |
1060 | { |
1319 | { |
… | |
… | |
1064 | |
1323 | |
1065 | int main (void) |
1324 | int main (void) |
1066 | { |
1325 | { |
1067 | ev_init (0); |
1326 | ev_init (0); |
1068 | |
1327 | |
1069 | evio_init (&wio, sin_cb, 0, EV_READ); |
1328 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
1070 | evio_start (&wio); |
1329 | ev_io_start (&wio); |
1071 | |
1330 | |
1072 | struct ev_timer t[10000]; |
1331 | struct ev_timer t[10000]; |
1073 | |
1332 | |
1074 | #if 0 |
1333 | #if 0 |
1075 | int i; |
1334 | int i; |
1076 | for (i = 0; i < 10000; ++i) |
1335 | for (i = 0; i < 10000; ++i) |
1077 | { |
1336 | { |
1078 | struct ev_timer *w = t + i; |
1337 | struct ev_timer *w = t + i; |
1079 | evw_init (w, ocb, i); |
1338 | ev_watcher_init (w, ocb, i); |
1080 | evtimer_init_abs (w, ocb, drand48 (), 0.99775533); |
1339 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
1081 | evtimer_start (w); |
1340 | ev_timer_start (w); |
1082 | if (drand48 () < 0.5) |
1341 | if (drand48 () < 0.5) |
1083 | evtimer_stop (w); |
1342 | ev_timer_stop (w); |
1084 | } |
1343 | } |
1085 | #endif |
1344 | #endif |
1086 | |
1345 | |
1087 | struct ev_timer t1; |
1346 | struct ev_timer t1; |
1088 | evtimer_init (&t1, ocb, 5, 10); |
1347 | ev_timer_init (&t1, ocb, 5, 10); |
1089 | evtimer_start (&t1); |
1348 | ev_timer_start (&t1); |
1090 | |
1349 | |
1091 | struct ev_signal sig; |
1350 | struct ev_signal sig; |
1092 | evsignal_init (&sig, scb, SIGQUIT); |
1351 | ev_signal_init (&sig, scb, SIGQUIT); |
1093 | evsignal_start (&sig); |
1352 | ev_signal_start (&sig); |
1094 | |
1353 | |
1095 | struct ev_check cw; |
1354 | struct ev_check cw; |
1096 | evcheck_init (&cw, gcb); |
1355 | ev_check_init (&cw, gcb); |
1097 | evcheck_start (&cw); |
1356 | ev_check_start (&cw); |
1098 | |
1357 | |
1099 | struct ev_idle iw; |
1358 | struct ev_idle iw; |
1100 | evidle_init (&iw, gcb); |
1359 | ev_idle_init (&iw, gcb); |
1101 | evidle_start (&iw); |
1360 | ev_idle_start (&iw); |
1102 | |
1361 | |
1103 | ev_loop (0); |
1362 | ev_loop (0); |
1104 | |
1363 | |
1105 | return 0; |
1364 | return 0; |
1106 | } |
1365 | } |