… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (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 |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
31 | #if EV_USE_CONFIG_H |
31 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
32 | # include "config.h" |
|
|
33 | |
|
|
34 | # if HAVE_CLOCK_GETTIME |
|
|
35 | # define EV_USE_MONOTONIC 1 |
|
|
36 | # define EV_USE_REALTIME 1 |
|
|
37 | # endif |
|
|
38 | |
|
|
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
40 | # define EV_USE_SELECT 1 |
|
|
41 | # endif |
|
|
42 | |
|
|
43 | # if HAVE_POLL && HAVE_POLL_H |
|
|
44 | # define EV_USE_POLL 1 |
|
|
45 | # endif |
|
|
46 | |
|
|
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
48 | # define EV_USE_EPOLL 1 |
|
|
49 | # endif |
|
|
50 | |
|
|
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
52 | # define EV_USE_KQUEUE 1 |
|
|
53 | # endif |
|
|
54 | |
33 | #endif |
55 | #endif |
34 | |
56 | |
35 | #include <math.h> |
57 | #include <math.h> |
36 | #include <stdlib.h> |
58 | #include <stdlib.h> |
37 | #include <unistd.h> |
59 | #include <unistd.h> |
… | |
… | |
70 | |
92 | |
71 | #ifndef EV_USE_KQUEUE |
93 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
94 | # define EV_USE_KQUEUE 0 |
73 | #endif |
95 | #endif |
74 | |
96 | |
|
|
97 | #ifndef EV_USE_WIN32 |
|
|
98 | # ifdef WIN32 |
|
|
99 | # define EV_USE_WIN32 1 |
|
|
100 | # else |
|
|
101 | # define EV_USE_WIN32 0 |
|
|
102 | # endif |
|
|
103 | #endif |
|
|
104 | |
75 | #ifndef EV_USE_REALTIME |
105 | #ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 1 |
106 | # define EV_USE_REALTIME 1 |
77 | #endif |
107 | #endif |
78 | |
108 | |
79 | /**/ |
109 | /**/ |
… | |
… | |
113 | |
143 | |
114 | typedef struct ev_watcher *W; |
144 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
145 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
146 | typedef struct ev_watcher_time *WT; |
117 | |
147 | |
118 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
119 | ev_tstamp ev_now; |
|
|
120 | int ev_method; |
|
|
121 | |
|
|
122 | static int have_monotonic; /* runtime */ |
|
|
123 | |
|
|
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
|
|
125 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
126 | static void (*method_poll)(ev_tstamp timeout); |
|
|
127 | |
149 | |
128 | /*****************************************************************************/ |
150 | /*****************************************************************************/ |
129 | |
151 | |
130 | ev_tstamp |
152 | typedef struct |
|
|
153 | { |
|
|
154 | struct ev_watcher_list *head; |
|
|
155 | unsigned char events; |
|
|
156 | unsigned char reify; |
|
|
157 | } ANFD; |
|
|
158 | |
|
|
159 | typedef struct |
|
|
160 | { |
|
|
161 | W w; |
|
|
162 | int events; |
|
|
163 | } ANPENDING; |
|
|
164 | |
|
|
165 | #if EV_MULTIPLICITY |
|
|
166 | |
|
|
167 | struct ev_loop |
|
|
168 | { |
|
|
169 | # define VAR(name,decl) decl; |
|
|
170 | # include "ev_vars.h" |
|
|
171 | }; |
|
|
172 | # undef VAR |
|
|
173 | # include "ev_wrap.h" |
|
|
174 | |
|
|
175 | #else |
|
|
176 | |
|
|
177 | # define VAR(name,decl) static decl; |
|
|
178 | # include "ev_vars.h" |
|
|
179 | # undef VAR |
|
|
180 | |
|
|
181 | #endif |
|
|
182 | |
|
|
183 | /*****************************************************************************/ |
|
|
184 | |
|
|
185 | inline ev_tstamp |
131 | ev_time (void) |
186 | ev_time (void) |
132 | { |
187 | { |
133 | #if EV_USE_REALTIME |
188 | #if EV_USE_REALTIME |
134 | struct timespec ts; |
189 | struct timespec ts; |
135 | clock_gettime (CLOCK_REALTIME, &ts); |
190 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
139 | gettimeofday (&tv, 0); |
194 | gettimeofday (&tv, 0); |
140 | return tv.tv_sec + tv.tv_usec * 1e-6; |
195 | return tv.tv_sec + tv.tv_usec * 1e-6; |
141 | #endif |
196 | #endif |
142 | } |
197 | } |
143 | |
198 | |
144 | static ev_tstamp |
199 | inline ev_tstamp |
145 | get_clock (void) |
200 | get_clock (void) |
146 | { |
201 | { |
147 | #if EV_USE_MONOTONIC |
202 | #if EV_USE_MONOTONIC |
148 | if (expect_true (have_monotonic)) |
203 | if (expect_true (have_monotonic)) |
149 | { |
204 | { |
… | |
… | |
152 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
207 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
153 | } |
208 | } |
154 | #endif |
209 | #endif |
155 | |
210 | |
156 | return ev_time (); |
211 | return ev_time (); |
|
|
212 | } |
|
|
213 | |
|
|
214 | ev_tstamp |
|
|
215 | ev_now (EV_P) |
|
|
216 | { |
|
|
217 | return rt_now; |
157 | } |
218 | } |
158 | |
219 | |
159 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
220 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
160 | |
221 | |
161 | #define array_needsize(base,cur,cnt,init) \ |
222 | #define array_needsize(base,cur,cnt,init) \ |
… | |
… | |
171 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
232 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
172 | init (base + cur, newcnt - cur); \ |
233 | init (base + cur, newcnt - cur); \ |
173 | cur = newcnt; \ |
234 | cur = newcnt; \ |
174 | } |
235 | } |
175 | |
236 | |
|
|
237 | #define array_free(stem, idx) \ |
|
|
238 | free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
|
|
239 | |
176 | /*****************************************************************************/ |
240 | /*****************************************************************************/ |
177 | |
|
|
178 | typedef struct |
|
|
179 | { |
|
|
180 | struct ev_io *head; |
|
|
181 | unsigned char events; |
|
|
182 | unsigned char reify; |
|
|
183 | } ANFD; |
|
|
184 | |
|
|
185 | static ANFD *anfds; |
|
|
186 | static int anfdmax; |
|
|
187 | |
241 | |
188 | static void |
242 | static void |
189 | anfds_init (ANFD *base, int count) |
243 | anfds_init (ANFD *base, int count) |
190 | { |
244 | { |
191 | while (count--) |
245 | while (count--) |
… | |
… | |
196 | |
250 | |
197 | ++base; |
251 | ++base; |
198 | } |
252 | } |
199 | } |
253 | } |
200 | |
254 | |
201 | typedef struct |
|
|
202 | { |
|
|
203 | W w; |
|
|
204 | int events; |
|
|
205 | } ANPENDING; |
|
|
206 | |
|
|
207 | static ANPENDING *pendings [NUMPRI]; |
|
|
208 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
209 | |
|
|
210 | static void |
255 | static void |
211 | event (W w, int events) |
256 | event (EV_P_ W w, int events) |
212 | { |
257 | { |
213 | if (w->pending) |
258 | if (w->pending) |
214 | { |
259 | { |
215 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
260 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
216 | return; |
261 | return; |
… | |
… | |
221 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
266 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
222 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
267 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
223 | } |
268 | } |
224 | |
269 | |
225 | static void |
270 | static void |
226 | queue_events (W *events, int eventcnt, int type) |
271 | queue_events (EV_P_ W *events, int eventcnt, int type) |
227 | { |
272 | { |
228 | int i; |
273 | int i; |
229 | |
274 | |
230 | for (i = 0; i < eventcnt; ++i) |
275 | for (i = 0; i < eventcnt; ++i) |
231 | event (events [i], type); |
276 | event (EV_A_ events [i], type); |
232 | } |
277 | } |
233 | |
278 | |
234 | static void |
279 | static void |
235 | fd_event (int fd, int events) |
280 | fd_event (EV_P_ int fd, int events) |
236 | { |
281 | { |
237 | ANFD *anfd = anfds + fd; |
282 | ANFD *anfd = anfds + fd; |
238 | struct ev_io *w; |
283 | struct ev_io *w; |
239 | |
284 | |
240 | for (w = anfd->head; w; w = w->next) |
285 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
241 | { |
286 | { |
242 | int ev = w->events & events; |
287 | int ev = w->events & events; |
243 | |
288 | |
244 | if (ev) |
289 | if (ev) |
245 | event ((W)w, ev); |
290 | event (EV_A_ (W)w, ev); |
246 | } |
291 | } |
247 | } |
292 | } |
248 | |
293 | |
249 | /*****************************************************************************/ |
294 | /*****************************************************************************/ |
250 | |
295 | |
251 | static int *fdchanges; |
|
|
252 | static int fdchangemax, fdchangecnt; |
|
|
253 | |
|
|
254 | static void |
296 | static void |
255 | fd_reify (void) |
297 | fd_reify (EV_P) |
256 | { |
298 | { |
257 | int i; |
299 | int i; |
258 | |
300 | |
259 | for (i = 0; i < fdchangecnt; ++i) |
301 | for (i = 0; i < fdchangecnt; ++i) |
260 | { |
302 | { |
… | |
… | |
262 | ANFD *anfd = anfds + fd; |
304 | ANFD *anfd = anfds + fd; |
263 | struct ev_io *w; |
305 | struct ev_io *w; |
264 | |
306 | |
265 | int events = 0; |
307 | int events = 0; |
266 | |
308 | |
267 | for (w = anfd->head; w; w = w->next) |
309 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
268 | events |= w->events; |
310 | events |= w->events; |
269 | |
311 | |
270 | anfd->reify = 0; |
312 | anfd->reify = 0; |
271 | |
313 | |
272 | if (anfd->events != events) |
|
|
273 | { |
|
|
274 | method_modify (fd, anfd->events, events); |
314 | method_modify (EV_A_ fd, anfd->events, events); |
275 | anfd->events = events; |
315 | anfd->events = events; |
276 | } |
|
|
277 | } |
316 | } |
278 | |
317 | |
279 | fdchangecnt = 0; |
318 | fdchangecnt = 0; |
280 | } |
319 | } |
281 | |
320 | |
282 | static void |
321 | static void |
283 | fd_change (int fd) |
322 | fd_change (EV_P_ int fd) |
284 | { |
323 | { |
285 | if (anfds [fd].reify || fdchangecnt < 0) |
324 | if (anfds [fd].reify || fdchangecnt < 0) |
286 | return; |
325 | return; |
287 | |
326 | |
288 | anfds [fd].reify = 1; |
327 | anfds [fd].reify = 1; |
… | |
… | |
291 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
330 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
292 | fdchanges [fdchangecnt - 1] = fd; |
331 | fdchanges [fdchangecnt - 1] = fd; |
293 | } |
332 | } |
294 | |
333 | |
295 | static void |
334 | static void |
296 | fd_kill (int fd) |
335 | fd_kill (EV_P_ int fd) |
297 | { |
336 | { |
298 | struct ev_io *w; |
337 | struct ev_io *w; |
299 | |
338 | |
300 | printf ("killing fd %d\n", fd);//D |
|
|
301 | while ((w = anfds [fd].head)) |
339 | while ((w = (struct ev_io *)anfds [fd].head)) |
302 | { |
340 | { |
303 | ev_io_stop (w); |
341 | ev_io_stop (EV_A_ w); |
304 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
342 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
305 | } |
343 | } |
306 | } |
344 | } |
307 | |
345 | |
308 | /* called on EBADF to verify fds */ |
346 | /* called on EBADF to verify fds */ |
309 | static void |
347 | static void |
310 | fd_ebadf (void) |
348 | fd_ebadf (EV_P) |
311 | { |
349 | { |
312 | int fd; |
350 | int fd; |
313 | |
351 | |
314 | for (fd = 0; fd < anfdmax; ++fd) |
352 | for (fd = 0; fd < anfdmax; ++fd) |
315 | if (anfds [fd].events) |
353 | if (anfds [fd].events) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
354 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
317 | fd_kill (fd); |
355 | fd_kill (EV_A_ fd); |
318 | } |
356 | } |
319 | |
357 | |
320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
358 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
321 | static void |
359 | static void |
322 | fd_enomem (void) |
360 | fd_enomem (EV_P) |
323 | { |
361 | { |
324 | int fd = anfdmax; |
362 | int fd; |
325 | |
363 | |
326 | while (fd--) |
364 | for (fd = anfdmax; fd--; ) |
327 | if (anfds [fd].events) |
365 | if (anfds [fd].events) |
328 | { |
366 | { |
329 | close (fd); |
367 | close (fd); |
330 | fd_kill (fd); |
368 | fd_kill (EV_A_ fd); |
331 | return; |
369 | return; |
332 | } |
370 | } |
333 | } |
371 | } |
334 | |
372 | |
|
|
373 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
|
|
374 | static void |
|
|
375 | fd_rearm_all (EV_P) |
|
|
376 | { |
|
|
377 | int fd; |
|
|
378 | |
|
|
379 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
380 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
381 | if (anfds [fd].events) |
|
|
382 | { |
|
|
383 | anfds [fd].events = 0; |
|
|
384 | fd_change (EV_A_ fd); |
|
|
385 | } |
|
|
386 | } |
|
|
387 | |
335 | /*****************************************************************************/ |
388 | /*****************************************************************************/ |
336 | |
389 | |
337 | static struct ev_timer **timers; |
|
|
338 | static int timermax, timercnt; |
|
|
339 | |
|
|
340 | static struct ev_periodic **periodics; |
|
|
341 | static int periodicmax, periodiccnt; |
|
|
342 | |
|
|
343 | static void |
390 | static void |
344 | upheap (WT *timers, int k) |
391 | upheap (WT *heap, int k) |
345 | { |
392 | { |
346 | WT w = timers [k]; |
393 | WT w = heap [k]; |
347 | |
394 | |
348 | while (k && timers [k >> 1]->at > w->at) |
395 | while (k && heap [k >> 1]->at > w->at) |
349 | { |
396 | { |
350 | timers [k] = timers [k >> 1]; |
397 | heap [k] = heap [k >> 1]; |
351 | timers [k]->active = k + 1; |
398 | ((W)heap [k])->active = k + 1; |
352 | k >>= 1; |
399 | k >>= 1; |
353 | } |
400 | } |
354 | |
401 | |
355 | timers [k] = w; |
402 | heap [k] = w; |
356 | timers [k]->active = k + 1; |
403 | ((W)heap [k])->active = k + 1; |
357 | |
404 | |
358 | } |
405 | } |
359 | |
406 | |
360 | static void |
407 | static void |
361 | downheap (WT *timers, int N, int k) |
408 | downheap (WT *heap, int N, int k) |
362 | { |
409 | { |
363 | WT w = timers [k]; |
410 | WT w = heap [k]; |
364 | |
411 | |
365 | while (k < (N >> 1)) |
412 | while (k < (N >> 1)) |
366 | { |
413 | { |
367 | int j = k << 1; |
414 | int j = k << 1; |
368 | |
415 | |
369 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
416 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
370 | ++j; |
417 | ++j; |
371 | |
418 | |
372 | if (w->at <= timers [j]->at) |
419 | if (w->at <= heap [j]->at) |
373 | break; |
420 | break; |
374 | |
421 | |
375 | timers [k] = timers [j]; |
422 | heap [k] = heap [j]; |
376 | timers [k]->active = k + 1; |
423 | ((W)heap [k])->active = k + 1; |
377 | k = j; |
424 | k = j; |
378 | } |
425 | } |
379 | |
426 | |
380 | timers [k] = w; |
427 | heap [k] = w; |
381 | timers [k]->active = k + 1; |
428 | ((W)heap [k])->active = k + 1; |
382 | } |
429 | } |
383 | |
430 | |
384 | /*****************************************************************************/ |
431 | /*****************************************************************************/ |
385 | |
432 | |
386 | typedef struct |
433 | typedef struct |
387 | { |
434 | { |
388 | struct ev_signal *head; |
435 | struct ev_watcher_list *head; |
389 | sig_atomic_t volatile gotsig; |
436 | sig_atomic_t volatile gotsig; |
390 | } ANSIG; |
437 | } ANSIG; |
391 | |
438 | |
392 | static ANSIG *signals; |
439 | static ANSIG *signals; |
393 | static int signalmax; |
440 | static int signalmax; |
… | |
… | |
413 | { |
460 | { |
414 | signals [signum - 1].gotsig = 1; |
461 | signals [signum - 1].gotsig = 1; |
415 | |
462 | |
416 | if (!gotsig) |
463 | if (!gotsig) |
417 | { |
464 | { |
|
|
465 | int old_errno = errno; |
418 | gotsig = 1; |
466 | gotsig = 1; |
419 | write (sigpipe [1], &signum, 1); |
467 | write (sigpipe [1], &signum, 1); |
|
|
468 | errno = old_errno; |
420 | } |
469 | } |
421 | } |
470 | } |
422 | |
471 | |
423 | static void |
472 | static void |
424 | sigcb (struct ev_io *iow, int revents) |
473 | sigcb (EV_P_ struct ev_io *iow, int revents) |
425 | { |
474 | { |
426 | struct ev_signal *w; |
475 | struct ev_watcher_list *w; |
427 | int signum; |
476 | int signum; |
428 | |
477 | |
429 | read (sigpipe [0], &revents, 1); |
478 | read (sigpipe [0], &revents, 1); |
430 | gotsig = 0; |
479 | gotsig = 0; |
431 | |
480 | |
… | |
… | |
433 | if (signals [signum].gotsig) |
482 | if (signals [signum].gotsig) |
434 | { |
483 | { |
435 | signals [signum].gotsig = 0; |
484 | signals [signum].gotsig = 0; |
436 | |
485 | |
437 | for (w = signals [signum].head; w; w = w->next) |
486 | for (w = signals [signum].head; w; w = w->next) |
438 | event ((W)w, EV_SIGNAL); |
487 | event (EV_A_ (W)w, EV_SIGNAL); |
439 | } |
488 | } |
440 | } |
489 | } |
441 | |
490 | |
442 | static void |
491 | static void |
443 | siginit (void) |
492 | siginit (EV_P) |
444 | { |
493 | { |
445 | #ifndef WIN32 |
494 | #ifndef WIN32 |
446 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
495 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
447 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
496 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
448 | |
497 | |
… | |
… | |
450 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
499 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
451 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
500 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
452 | #endif |
501 | #endif |
453 | |
502 | |
454 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
503 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
455 | ev_io_start (&sigev); |
504 | ev_io_start (EV_A_ &sigev); |
|
|
505 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
456 | } |
506 | } |
457 | |
507 | |
458 | /*****************************************************************************/ |
508 | /*****************************************************************************/ |
459 | |
509 | |
460 | static struct ev_idle **idles; |
510 | #ifndef WIN32 |
461 | static int idlemax, idlecnt; |
|
|
462 | |
|
|
463 | static struct ev_prepare **prepares; |
|
|
464 | static int preparemax, preparecnt; |
|
|
465 | |
|
|
466 | static struct ev_check **checks; |
|
|
467 | static int checkmax, checkcnt; |
|
|
468 | |
|
|
469 | /*****************************************************************************/ |
|
|
470 | |
511 | |
471 | static struct ev_child *childs [PID_HASHSIZE]; |
512 | static struct ev_child *childs [PID_HASHSIZE]; |
472 | static struct ev_signal childev; |
513 | static struct ev_signal childev; |
473 | |
514 | |
474 | #ifndef WIN32 |
|
|
475 | |
|
|
476 | #ifndef WCONTINUED |
515 | #ifndef WCONTINUED |
477 | # define WCONTINUED 0 |
516 | # define WCONTINUED 0 |
478 | #endif |
517 | #endif |
479 | |
518 | |
480 | static void |
519 | static void |
481 | childcb (struct ev_signal *sw, int revents) |
520 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
482 | { |
521 | { |
483 | struct ev_child *w; |
522 | struct ev_child *w; |
|
|
523 | |
|
|
524 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
525 | if (w->pid == pid || !w->pid) |
|
|
526 | { |
|
|
527 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
528 | w->rpid = pid; |
|
|
529 | w->rstatus = status; |
|
|
530 | event (EV_A_ (W)w, EV_CHILD); |
|
|
531 | } |
|
|
532 | } |
|
|
533 | |
|
|
534 | static void |
|
|
535 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
536 | { |
484 | int pid, status; |
537 | int pid, status; |
485 | |
538 | |
486 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
539 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
487 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
540 | { |
488 | if (w->pid == pid || !w->pid) |
541 | /* make sure we are called again until all childs have been reaped */ |
489 | { |
542 | event (EV_A_ (W)sw, EV_SIGNAL); |
490 | w->rpid = pid; |
543 | |
491 | w->rstatus = status; |
544 | child_reap (EV_A_ sw, pid, pid, status); |
492 | event ((W)w, EV_CHILD); |
545 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
493 | } |
546 | } |
494 | } |
547 | } |
495 | |
548 | |
496 | #endif |
549 | #endif |
497 | |
550 | |
498 | /*****************************************************************************/ |
551 | /*****************************************************************************/ |
… | |
… | |
520 | ev_version_minor (void) |
573 | ev_version_minor (void) |
521 | { |
574 | { |
522 | return EV_VERSION_MINOR; |
575 | return EV_VERSION_MINOR; |
523 | } |
576 | } |
524 | |
577 | |
525 | /* return true if we are running with elevated privileges and ignore env variables */ |
578 | /* return true if we are running with elevated privileges and should ignore env variables */ |
526 | static int |
579 | static int |
527 | enable_secure () |
580 | enable_secure (void) |
528 | { |
581 | { |
|
|
582 | #ifdef WIN32 |
|
|
583 | return 0; |
|
|
584 | #else |
529 | return getuid () != geteuid () |
585 | return getuid () != geteuid () |
530 | || getgid () != getegid (); |
586 | || getgid () != getegid (); |
|
|
587 | #endif |
531 | } |
588 | } |
532 | |
589 | |
533 | int ev_init (int methods) |
590 | int |
|
|
591 | ev_method (EV_P) |
534 | { |
592 | { |
|
|
593 | return method; |
|
|
594 | } |
|
|
595 | |
|
|
596 | static void |
|
|
597 | loop_init (EV_P_ int methods) |
|
|
598 | { |
535 | if (!ev_method) |
599 | if (!method) |
536 | { |
600 | { |
537 | #if EV_USE_MONOTONIC |
601 | #if EV_USE_MONOTONIC |
538 | { |
602 | { |
539 | struct timespec ts; |
603 | struct timespec ts; |
540 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
604 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
541 | have_monotonic = 1; |
605 | have_monotonic = 1; |
542 | } |
606 | } |
543 | #endif |
607 | #endif |
544 | |
608 | |
545 | ev_now = ev_time (); |
609 | rt_now = ev_time (); |
546 | now = get_clock (); |
610 | mn_now = get_clock (); |
547 | now_floor = now; |
611 | now_floor = mn_now; |
548 | diff = ev_now - now; |
612 | rtmn_diff = rt_now - mn_now; |
549 | |
|
|
550 | if (pipe (sigpipe)) |
|
|
551 | return 0; |
|
|
552 | |
613 | |
553 | if (methods == EVMETHOD_AUTO) |
614 | if (methods == EVMETHOD_AUTO) |
554 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
615 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
555 | methods = atoi (getenv ("LIBEV_METHODS")); |
616 | methods = atoi (getenv ("LIBEV_METHODS")); |
556 | else |
617 | else |
557 | methods = EVMETHOD_ANY; |
618 | methods = EVMETHOD_ANY; |
558 | |
619 | |
559 | ev_method = 0; |
620 | method = 0; |
|
|
621 | #if EV_USE_WIN32 |
|
|
622 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
|
|
623 | #endif |
560 | #if EV_USE_KQUEUE |
624 | #if EV_USE_KQUEUE |
561 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
625 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
562 | #endif |
626 | #endif |
563 | #if EV_USE_EPOLL |
627 | #if EV_USE_EPOLL |
564 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
628 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
565 | #endif |
629 | #endif |
566 | #if EV_USE_POLL |
630 | #if EV_USE_POLL |
567 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
631 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
568 | #endif |
632 | #endif |
569 | #if EV_USE_SELECT |
633 | #if EV_USE_SELECT |
570 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
634 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
571 | #endif |
635 | #endif |
|
|
636 | } |
|
|
637 | } |
572 | |
638 | |
|
|
639 | void |
|
|
640 | loop_destroy (EV_P) |
|
|
641 | { |
|
|
642 | int i; |
|
|
643 | |
|
|
644 | #if EV_USE_WIN32 |
|
|
645 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
|
|
646 | #endif |
|
|
647 | #if EV_USE_KQUEUE |
|
|
648 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
649 | #endif |
|
|
650 | #if EV_USE_EPOLL |
|
|
651 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
652 | #endif |
|
|
653 | #if EV_USE_POLL |
|
|
654 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
655 | #endif |
|
|
656 | #if EV_USE_SELECT |
|
|
657 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
658 | #endif |
|
|
659 | |
|
|
660 | for (i = NUMPRI; i--; ) |
|
|
661 | array_free (pending, [i]); |
|
|
662 | |
|
|
663 | array_free (fdchange, ); |
|
|
664 | array_free (timer, ); |
|
|
665 | array_free (periodic, ); |
|
|
666 | array_free (idle, ); |
|
|
667 | array_free (prepare, ); |
|
|
668 | array_free (check, ); |
|
|
669 | |
|
|
670 | method = 0; |
|
|
671 | /*TODO*/ |
|
|
672 | } |
|
|
673 | |
|
|
674 | void |
|
|
675 | loop_fork (EV_P) |
|
|
676 | { |
|
|
677 | /*TODO*/ |
|
|
678 | #if EV_USE_EPOLL |
|
|
679 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
680 | #endif |
|
|
681 | #if EV_USE_KQUEUE |
|
|
682 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
683 | #endif |
|
|
684 | } |
|
|
685 | |
|
|
686 | #if EV_MULTIPLICITY |
|
|
687 | struct ev_loop * |
|
|
688 | ev_loop_new (int methods) |
|
|
689 | { |
|
|
690 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
|
|
691 | |
|
|
692 | loop_init (EV_A_ methods); |
|
|
693 | |
|
|
694 | if (ev_method (EV_A)) |
|
|
695 | return loop; |
|
|
696 | |
|
|
697 | return 0; |
|
|
698 | } |
|
|
699 | |
|
|
700 | void |
|
|
701 | ev_loop_destroy (EV_P) |
|
|
702 | { |
|
|
703 | loop_destroy (EV_A); |
|
|
704 | free (loop); |
|
|
705 | } |
|
|
706 | |
|
|
707 | void |
|
|
708 | ev_loop_fork (EV_P) |
|
|
709 | { |
|
|
710 | loop_fork (EV_A); |
|
|
711 | } |
|
|
712 | |
|
|
713 | #endif |
|
|
714 | |
|
|
715 | #if EV_MULTIPLICITY |
|
|
716 | struct ev_loop default_loop_struct; |
|
|
717 | static struct ev_loop *default_loop; |
|
|
718 | |
|
|
719 | struct ev_loop * |
|
|
720 | #else |
|
|
721 | static int default_loop; |
|
|
722 | |
|
|
723 | int |
|
|
724 | #endif |
|
|
725 | ev_default_loop (int methods) |
|
|
726 | { |
|
|
727 | if (sigpipe [0] == sigpipe [1]) |
|
|
728 | if (pipe (sigpipe)) |
|
|
729 | return 0; |
|
|
730 | |
|
|
731 | if (!default_loop) |
|
|
732 | { |
|
|
733 | #if EV_MULTIPLICITY |
|
|
734 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
735 | #else |
|
|
736 | default_loop = 1; |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | loop_init (EV_A_ methods); |
|
|
740 | |
573 | if (ev_method) |
741 | if (ev_method (EV_A)) |
574 | { |
742 | { |
575 | ev_watcher_init (&sigev, sigcb); |
743 | ev_watcher_init (&sigev, sigcb); |
|
|
744 | ev_set_priority (&sigev, EV_MAXPRI); |
576 | siginit (); |
745 | siginit (EV_A); |
577 | |
746 | |
578 | #ifndef WIN32 |
747 | #ifndef WIN32 |
579 | ev_signal_init (&childev, childcb, SIGCHLD); |
748 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
749 | ev_set_priority (&childev, EV_MAXPRI); |
580 | ev_signal_start (&childev); |
750 | ev_signal_start (EV_A_ &childev); |
|
|
751 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
581 | #endif |
752 | #endif |
582 | } |
753 | } |
|
|
754 | else |
|
|
755 | default_loop = 0; |
583 | } |
756 | } |
584 | |
757 | |
585 | return ev_method; |
758 | return default_loop; |
586 | } |
759 | } |
587 | |
760 | |
588 | /*****************************************************************************/ |
|
|
589 | |
|
|
590 | void |
761 | void |
591 | ev_fork_prepare (void) |
762 | ev_default_destroy (void) |
592 | { |
763 | { |
593 | /* nop */ |
764 | #if EV_MULTIPLICITY |
594 | } |
765 | struct ev_loop *loop = default_loop; |
595 | |
|
|
596 | void |
|
|
597 | ev_fork_parent (void) |
|
|
598 | { |
|
|
599 | /* nop */ |
|
|
600 | } |
|
|
601 | |
|
|
602 | void |
|
|
603 | ev_fork_child (void) |
|
|
604 | { |
|
|
605 | #if EV_USE_EPOLL |
|
|
606 | if (ev_method == EVMETHOD_EPOLL) |
|
|
607 | epoll_postfork_child (); |
|
|
608 | #endif |
766 | #endif |
609 | |
767 | |
|
|
768 | ev_ref (EV_A); /* child watcher */ |
|
|
769 | ev_signal_stop (EV_A_ &childev); |
|
|
770 | |
|
|
771 | ev_ref (EV_A); /* signal watcher */ |
610 | ev_io_stop (&sigev); |
772 | ev_io_stop (EV_A_ &sigev); |
|
|
773 | |
|
|
774 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
775 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
776 | |
|
|
777 | loop_destroy (EV_A); |
|
|
778 | } |
|
|
779 | |
|
|
780 | void |
|
|
781 | ev_default_fork (void) |
|
|
782 | { |
|
|
783 | #if EV_MULTIPLICITY |
|
|
784 | struct ev_loop *loop = default_loop; |
|
|
785 | #endif |
|
|
786 | |
|
|
787 | loop_fork (EV_A); |
|
|
788 | |
|
|
789 | ev_io_stop (EV_A_ &sigev); |
611 | close (sigpipe [0]); |
790 | close (sigpipe [0]); |
612 | close (sigpipe [1]); |
791 | close (sigpipe [1]); |
613 | pipe (sigpipe); |
792 | pipe (sigpipe); |
|
|
793 | |
|
|
794 | ev_ref (EV_A); /* signal watcher */ |
614 | siginit (); |
795 | siginit (EV_A); |
615 | } |
796 | } |
616 | |
797 | |
617 | /*****************************************************************************/ |
798 | /*****************************************************************************/ |
618 | |
799 | |
619 | static void |
800 | static void |
620 | call_pending (void) |
801 | call_pending (EV_P) |
621 | { |
802 | { |
622 | int pri; |
803 | int pri; |
623 | |
804 | |
624 | for (pri = NUMPRI; pri--; ) |
805 | for (pri = NUMPRI; pri--; ) |
625 | while (pendingcnt [pri]) |
806 | while (pendingcnt [pri]) |
… | |
… | |
627 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
808 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
628 | |
809 | |
629 | if (p->w) |
810 | if (p->w) |
630 | { |
811 | { |
631 | p->w->pending = 0; |
812 | p->w->pending = 0; |
632 | p->w->cb (p->w, p->events); |
813 | p->w->cb (EV_A_ p->w, p->events); |
633 | } |
814 | } |
634 | } |
815 | } |
635 | } |
816 | } |
636 | |
817 | |
637 | static void |
818 | static void |
638 | timers_reify (void) |
819 | timers_reify (EV_P) |
639 | { |
820 | { |
640 | while (timercnt && timers [0]->at <= now) |
821 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
641 | { |
822 | { |
642 | struct ev_timer *w = timers [0]; |
823 | struct ev_timer *w = timers [0]; |
|
|
824 | |
|
|
825 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
643 | |
826 | |
644 | /* first reschedule or stop timer */ |
827 | /* first reschedule or stop timer */ |
645 | if (w->repeat) |
828 | if (w->repeat) |
646 | { |
829 | { |
647 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
830 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
648 | w->at = now + w->repeat; |
831 | ((WT)w)->at = mn_now + w->repeat; |
649 | downheap ((WT *)timers, timercnt, 0); |
832 | downheap ((WT *)timers, timercnt, 0); |
650 | } |
833 | } |
651 | else |
834 | else |
652 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
835 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
653 | |
836 | |
654 | event ((W)w, EV_TIMEOUT); |
837 | event (EV_A_ (W)w, EV_TIMEOUT); |
655 | } |
838 | } |
656 | } |
839 | } |
657 | |
840 | |
658 | static void |
841 | static void |
659 | periodics_reify (void) |
842 | periodics_reify (EV_P) |
660 | { |
843 | { |
661 | while (periodiccnt && periodics [0]->at <= ev_now) |
844 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
662 | { |
845 | { |
663 | struct ev_periodic *w = periodics [0]; |
846 | struct ev_periodic *w = periodics [0]; |
|
|
847 | |
|
|
848 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
664 | |
849 | |
665 | /* first reschedule or stop timer */ |
850 | /* first reschedule or stop timer */ |
666 | if (w->interval) |
851 | if (w->interval) |
667 | { |
852 | { |
668 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
853 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
669 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
854 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
670 | downheap ((WT *)periodics, periodiccnt, 0); |
855 | downheap ((WT *)periodics, periodiccnt, 0); |
671 | } |
856 | } |
672 | else |
857 | else |
673 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
858 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
674 | |
859 | |
675 | event ((W)w, EV_PERIODIC); |
860 | event (EV_A_ (W)w, EV_PERIODIC); |
676 | } |
861 | } |
677 | } |
862 | } |
678 | |
863 | |
679 | static void |
864 | static void |
680 | periodics_reschedule (ev_tstamp diff) |
865 | periodics_reschedule (EV_P) |
681 | { |
866 | { |
682 | int i; |
867 | int i; |
683 | |
868 | |
684 | /* adjust periodics after time jump */ |
869 | /* adjust periodics after time jump */ |
685 | for (i = 0; i < periodiccnt; ++i) |
870 | for (i = 0; i < periodiccnt; ++i) |
686 | { |
871 | { |
687 | struct ev_periodic *w = periodics [i]; |
872 | struct ev_periodic *w = periodics [i]; |
688 | |
873 | |
689 | if (w->interval) |
874 | if (w->interval) |
690 | { |
875 | { |
691 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
876 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
692 | |
877 | |
693 | if (fabs (diff) >= 1e-4) |
878 | if (fabs (diff) >= 1e-4) |
694 | { |
879 | { |
695 | ev_periodic_stop (w); |
880 | ev_periodic_stop (EV_A_ w); |
696 | ev_periodic_start (w); |
881 | ev_periodic_start (EV_A_ w); |
697 | |
882 | |
698 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
883 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
699 | } |
884 | } |
700 | } |
885 | } |
701 | } |
886 | } |
702 | } |
887 | } |
703 | |
888 | |
704 | static int |
889 | inline int |
705 | time_update_monotonic (void) |
890 | time_update_monotonic (EV_P) |
706 | { |
891 | { |
707 | now = get_clock (); |
892 | mn_now = get_clock (); |
708 | |
893 | |
709 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
894 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
710 | { |
895 | { |
711 | ev_now = now + diff; |
896 | rt_now = rtmn_diff + mn_now; |
712 | return 0; |
897 | return 0; |
713 | } |
898 | } |
714 | else |
899 | else |
715 | { |
900 | { |
716 | now_floor = now; |
901 | now_floor = mn_now; |
717 | ev_now = ev_time (); |
902 | rt_now = ev_time (); |
718 | return 1; |
903 | return 1; |
719 | } |
904 | } |
720 | } |
905 | } |
721 | |
906 | |
722 | static void |
907 | static void |
723 | time_update (void) |
908 | time_update (EV_P) |
724 | { |
909 | { |
725 | int i; |
910 | int i; |
726 | |
911 | |
727 | #if EV_USE_MONOTONIC |
912 | #if EV_USE_MONOTONIC |
728 | if (expect_true (have_monotonic)) |
913 | if (expect_true (have_monotonic)) |
729 | { |
914 | { |
730 | if (time_update_monotonic ()) |
915 | if (time_update_monotonic (EV_A)) |
731 | { |
916 | { |
732 | ev_tstamp odiff = diff; |
917 | ev_tstamp odiff = rtmn_diff; |
733 | |
918 | |
734 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
919 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
735 | { |
920 | { |
736 | diff = ev_now - now; |
921 | rtmn_diff = rt_now - mn_now; |
737 | |
922 | |
738 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
923 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
739 | return; /* all is well */ |
924 | return; /* all is well */ |
740 | |
925 | |
741 | ev_now = ev_time (); |
926 | rt_now = ev_time (); |
742 | now = get_clock (); |
927 | mn_now = get_clock (); |
743 | now_floor = now; |
928 | now_floor = mn_now; |
744 | } |
929 | } |
745 | |
930 | |
746 | periodics_reschedule (diff - odiff); |
931 | periodics_reschedule (EV_A); |
747 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
932 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
933 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
748 | } |
934 | } |
749 | } |
935 | } |
750 | else |
936 | else |
751 | #endif |
937 | #endif |
752 | { |
938 | { |
753 | ev_now = ev_time (); |
939 | rt_now = ev_time (); |
754 | |
940 | |
755 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
941 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
756 | { |
942 | { |
757 | periodics_reschedule (ev_now - now); |
943 | periodics_reschedule (EV_A); |
758 | |
944 | |
759 | /* adjust timers. this is easy, as the offset is the same for all */ |
945 | /* adjust timers. this is easy, as the offset is the same for all */ |
760 | for (i = 0; i < timercnt; ++i) |
946 | for (i = 0; i < timercnt; ++i) |
761 | timers [i]->at += diff; |
947 | ((WT)timers [i])->at += rt_now - mn_now; |
762 | } |
948 | } |
763 | |
949 | |
764 | now = ev_now; |
950 | mn_now = rt_now; |
765 | } |
951 | } |
766 | } |
952 | } |
767 | |
953 | |
768 | int ev_loop_done; |
954 | void |
|
|
955 | ev_ref (EV_P) |
|
|
956 | { |
|
|
957 | ++activecnt; |
|
|
958 | } |
769 | |
959 | |
|
|
960 | void |
|
|
961 | ev_unref (EV_P) |
|
|
962 | { |
|
|
963 | --activecnt; |
|
|
964 | } |
|
|
965 | |
|
|
966 | static int loop_done; |
|
|
967 | |
|
|
968 | void |
770 | void ev_loop (int flags) |
969 | ev_loop (EV_P_ int flags) |
771 | { |
970 | { |
772 | double block; |
971 | double block; |
773 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
972 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
774 | |
973 | |
775 | do |
974 | do |
776 | { |
975 | { |
777 | /* queue check watchers (and execute them) */ |
976 | /* queue check watchers (and execute them) */ |
778 | if (expect_false (preparecnt)) |
977 | if (expect_false (preparecnt)) |
779 | { |
978 | { |
780 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
979 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
781 | call_pending (); |
980 | call_pending (EV_A); |
782 | } |
981 | } |
783 | |
982 | |
784 | /* update fd-related kernel structures */ |
983 | /* update fd-related kernel structures */ |
785 | fd_reify (); |
984 | fd_reify (EV_A); |
786 | |
985 | |
787 | /* calculate blocking time */ |
986 | /* calculate blocking time */ |
788 | |
987 | |
789 | /* we only need this for !monotonic clockor timers, but as we basically |
988 | /* we only need this for !monotonic clockor timers, but as we basically |
790 | always have timers, we just calculate it always */ |
989 | always have timers, we just calculate it always */ |
791 | #if EV_USE_MONOTONIC |
990 | #if EV_USE_MONOTONIC |
792 | if (expect_true (have_monotonic)) |
991 | if (expect_true (have_monotonic)) |
793 | time_update_monotonic (); |
992 | time_update_monotonic (EV_A); |
794 | else |
993 | else |
795 | #endif |
994 | #endif |
796 | { |
995 | { |
797 | ev_now = ev_time (); |
996 | rt_now = ev_time (); |
798 | now = ev_now; |
997 | mn_now = rt_now; |
799 | } |
998 | } |
800 | |
999 | |
801 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1000 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
802 | block = 0.; |
1001 | block = 0.; |
803 | else |
1002 | else |
804 | { |
1003 | { |
805 | block = MAX_BLOCKTIME; |
1004 | block = MAX_BLOCKTIME; |
806 | |
1005 | |
807 | if (timercnt) |
1006 | if (timercnt) |
808 | { |
1007 | { |
809 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1008 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
810 | if (block > to) block = to; |
1009 | if (block > to) block = to; |
811 | } |
1010 | } |
812 | |
1011 | |
813 | if (periodiccnt) |
1012 | if (periodiccnt) |
814 | { |
1013 | { |
815 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1014 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
816 | if (block > to) block = to; |
1015 | if (block > to) block = to; |
817 | } |
1016 | } |
818 | |
1017 | |
819 | if (block < 0.) block = 0.; |
1018 | if (block < 0.) block = 0.; |
820 | } |
1019 | } |
821 | |
1020 | |
822 | method_poll (block); |
1021 | method_poll (EV_A_ block); |
823 | |
1022 | |
824 | /* update ev_now, do magic */ |
1023 | /* update rt_now, do magic */ |
825 | time_update (); |
1024 | time_update (EV_A); |
826 | |
1025 | |
827 | /* queue pending timers and reschedule them */ |
1026 | /* queue pending timers and reschedule them */ |
828 | timers_reify (); /* relative timers called last */ |
1027 | timers_reify (EV_A); /* relative timers called last */ |
829 | periodics_reify (); /* absolute timers called first */ |
1028 | periodics_reify (EV_A); /* absolute timers called first */ |
830 | |
1029 | |
831 | /* queue idle watchers unless io or timers are pending */ |
1030 | /* queue idle watchers unless io or timers are pending */ |
832 | if (!pendingcnt) |
1031 | if (!pendingcnt) |
833 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1032 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
834 | |
1033 | |
835 | /* queue check watchers, to be executed first */ |
1034 | /* queue check watchers, to be executed first */ |
836 | if (checkcnt) |
1035 | if (checkcnt) |
837 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1036 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
838 | |
1037 | |
839 | call_pending (); |
1038 | call_pending (EV_A); |
840 | } |
1039 | } |
841 | while (!ev_loop_done); |
1040 | while (activecnt && !loop_done); |
842 | |
1041 | |
843 | if (ev_loop_done != 2) |
1042 | if (loop_done != 2) |
844 | ev_loop_done = 0; |
1043 | loop_done = 0; |
|
|
1044 | } |
|
|
1045 | |
|
|
1046 | void |
|
|
1047 | ev_unloop (EV_P_ int how) |
|
|
1048 | { |
|
|
1049 | loop_done = how; |
845 | } |
1050 | } |
846 | |
1051 | |
847 | /*****************************************************************************/ |
1052 | /*****************************************************************************/ |
848 | |
1053 | |
849 | static void |
1054 | inline void |
850 | wlist_add (WL *head, WL elem) |
1055 | wlist_add (WL *head, WL elem) |
851 | { |
1056 | { |
852 | elem->next = *head; |
1057 | elem->next = *head; |
853 | *head = elem; |
1058 | *head = elem; |
854 | } |
1059 | } |
855 | |
1060 | |
856 | static void |
1061 | inline void |
857 | wlist_del (WL *head, WL elem) |
1062 | wlist_del (WL *head, WL elem) |
858 | { |
1063 | { |
859 | while (*head) |
1064 | while (*head) |
860 | { |
1065 | { |
861 | if (*head == elem) |
1066 | if (*head == elem) |
… | |
… | |
866 | |
1071 | |
867 | head = &(*head)->next; |
1072 | head = &(*head)->next; |
868 | } |
1073 | } |
869 | } |
1074 | } |
870 | |
1075 | |
871 | static void |
1076 | inline void |
872 | ev_clear_pending (W w) |
1077 | ev_clear_pending (EV_P_ W w) |
873 | { |
1078 | { |
874 | if (w->pending) |
1079 | if (w->pending) |
875 | { |
1080 | { |
876 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1081 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
877 | w->pending = 0; |
1082 | w->pending = 0; |
878 | } |
1083 | } |
879 | } |
1084 | } |
880 | |
1085 | |
881 | static void |
1086 | inline void |
882 | ev_start (W w, int active) |
1087 | ev_start (EV_P_ W w, int active) |
883 | { |
1088 | { |
884 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1089 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
885 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1090 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
886 | |
1091 | |
887 | w->active = active; |
1092 | w->active = active; |
|
|
1093 | ev_ref (EV_A); |
888 | } |
1094 | } |
889 | |
1095 | |
890 | static void |
1096 | inline void |
891 | ev_stop (W w) |
1097 | ev_stop (EV_P_ W w) |
892 | { |
1098 | { |
|
|
1099 | ev_unref (EV_A); |
893 | w->active = 0; |
1100 | w->active = 0; |
894 | } |
1101 | } |
895 | |
1102 | |
896 | /*****************************************************************************/ |
1103 | /*****************************************************************************/ |
897 | |
1104 | |
898 | void |
1105 | void |
899 | ev_io_start (struct ev_io *w) |
1106 | ev_io_start (EV_P_ struct ev_io *w) |
900 | { |
1107 | { |
901 | int fd = w->fd; |
1108 | int fd = w->fd; |
902 | |
1109 | |
903 | if (ev_is_active (w)) |
1110 | if (ev_is_active (w)) |
904 | return; |
1111 | return; |
905 | |
1112 | |
906 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1113 | assert (("ev_io_start called with negative fd", fd >= 0)); |
907 | |
1114 | |
908 | ev_start ((W)w, 1); |
1115 | ev_start (EV_A_ (W)w, 1); |
909 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1116 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
910 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1117 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
911 | |
1118 | |
912 | fd_change (fd); |
1119 | fd_change (EV_A_ fd); |
913 | } |
1120 | } |
914 | |
1121 | |
915 | void |
1122 | void |
916 | ev_io_stop (struct ev_io *w) |
1123 | ev_io_stop (EV_P_ struct ev_io *w) |
917 | { |
1124 | { |
918 | ev_clear_pending ((W)w); |
1125 | ev_clear_pending (EV_A_ (W)w); |
919 | if (!ev_is_active (w)) |
1126 | if (!ev_is_active (w)) |
920 | return; |
1127 | return; |
921 | |
1128 | |
922 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1129 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
923 | ev_stop ((W)w); |
1130 | ev_stop (EV_A_ (W)w); |
924 | |
1131 | |
925 | fd_change (w->fd); |
1132 | fd_change (EV_A_ w->fd); |
926 | } |
1133 | } |
927 | |
1134 | |
928 | void |
1135 | void |
929 | ev_timer_start (struct ev_timer *w) |
1136 | ev_timer_start (EV_P_ struct ev_timer *w) |
930 | { |
1137 | { |
931 | if (ev_is_active (w)) |
1138 | if (ev_is_active (w)) |
932 | return; |
1139 | return; |
933 | |
1140 | |
934 | w->at += now; |
1141 | ((WT)w)->at += mn_now; |
935 | |
1142 | |
936 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1143 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
937 | |
1144 | |
938 | ev_start ((W)w, ++timercnt); |
1145 | ev_start (EV_A_ (W)w, ++timercnt); |
939 | array_needsize (timers, timermax, timercnt, ); |
1146 | array_needsize (timers, timermax, timercnt, ); |
940 | timers [timercnt - 1] = w; |
1147 | timers [timercnt - 1] = w; |
941 | upheap ((WT *)timers, timercnt - 1); |
1148 | upheap ((WT *)timers, timercnt - 1); |
942 | } |
|
|
943 | |
1149 | |
|
|
1150 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1151 | } |
|
|
1152 | |
944 | void |
1153 | void |
945 | ev_timer_stop (struct ev_timer *w) |
1154 | ev_timer_stop (EV_P_ struct ev_timer *w) |
946 | { |
1155 | { |
947 | ev_clear_pending ((W)w); |
1156 | ev_clear_pending (EV_A_ (W)w); |
948 | if (!ev_is_active (w)) |
1157 | if (!ev_is_active (w)) |
949 | return; |
1158 | return; |
950 | |
1159 | |
|
|
1160 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1161 | |
951 | if (w->active < timercnt--) |
1162 | if (((W)w)->active < timercnt--) |
952 | { |
1163 | { |
953 | timers [w->active - 1] = timers [timercnt]; |
1164 | timers [((W)w)->active - 1] = timers [timercnt]; |
954 | downheap ((WT *)timers, timercnt, w->active - 1); |
1165 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
955 | } |
1166 | } |
956 | |
1167 | |
957 | w->at = w->repeat; |
1168 | ((WT)w)->at = w->repeat; |
958 | |
1169 | |
959 | ev_stop ((W)w); |
1170 | ev_stop (EV_A_ (W)w); |
960 | } |
1171 | } |
961 | |
1172 | |
962 | void |
1173 | void |
963 | ev_timer_again (struct ev_timer *w) |
1174 | ev_timer_again (EV_P_ struct ev_timer *w) |
964 | { |
1175 | { |
965 | if (ev_is_active (w)) |
1176 | if (ev_is_active (w)) |
966 | { |
1177 | { |
967 | if (w->repeat) |
1178 | if (w->repeat) |
968 | { |
1179 | { |
969 | w->at = now + w->repeat; |
1180 | ((WT)w)->at = mn_now + w->repeat; |
970 | downheap ((WT *)timers, timercnt, w->active - 1); |
1181 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
971 | } |
1182 | } |
972 | else |
1183 | else |
973 | ev_timer_stop (w); |
1184 | ev_timer_stop (EV_A_ w); |
974 | } |
1185 | } |
975 | else if (w->repeat) |
1186 | else if (w->repeat) |
976 | ev_timer_start (w); |
1187 | ev_timer_start (EV_A_ w); |
977 | } |
1188 | } |
978 | |
1189 | |
979 | void |
1190 | void |
980 | ev_periodic_start (struct ev_periodic *w) |
1191 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
981 | { |
1192 | { |
982 | if (ev_is_active (w)) |
1193 | if (ev_is_active (w)) |
983 | return; |
1194 | return; |
984 | |
1195 | |
985 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1196 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
986 | |
1197 | |
987 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1198 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
988 | if (w->interval) |
1199 | if (w->interval) |
989 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1200 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
990 | |
1201 | |
991 | ev_start ((W)w, ++periodiccnt); |
1202 | ev_start (EV_A_ (W)w, ++periodiccnt); |
992 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1203 | array_needsize (periodics, periodicmax, periodiccnt, ); |
993 | periodics [periodiccnt - 1] = w; |
1204 | periodics [periodiccnt - 1] = w; |
994 | upheap ((WT *)periodics, periodiccnt - 1); |
1205 | upheap ((WT *)periodics, periodiccnt - 1); |
995 | } |
|
|
996 | |
1206 | |
|
|
1207 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1208 | } |
|
|
1209 | |
997 | void |
1210 | void |
998 | ev_periodic_stop (struct ev_periodic *w) |
1211 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
999 | { |
1212 | { |
1000 | ev_clear_pending ((W)w); |
1213 | ev_clear_pending (EV_A_ (W)w); |
1001 | if (!ev_is_active (w)) |
1214 | if (!ev_is_active (w)) |
1002 | return; |
1215 | return; |
1003 | |
1216 | |
|
|
1217 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1218 | |
1004 | if (w->active < periodiccnt--) |
1219 | if (((W)w)->active < periodiccnt--) |
1005 | { |
1220 | { |
1006 | periodics [w->active - 1] = periodics [periodiccnt]; |
1221 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1007 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1222 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1008 | } |
1223 | } |
1009 | |
1224 | |
1010 | ev_stop ((W)w); |
1225 | ev_stop (EV_A_ (W)w); |
1011 | } |
1226 | } |
1012 | |
1227 | |
1013 | void |
1228 | void |
1014 | ev_signal_start (struct ev_signal *w) |
1229 | ev_idle_start (EV_P_ struct ev_idle *w) |
1015 | { |
1230 | { |
1016 | if (ev_is_active (w)) |
1231 | if (ev_is_active (w)) |
1017 | return; |
1232 | return; |
1018 | |
1233 | |
|
|
1234 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1235 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1236 | idles [idlecnt - 1] = w; |
|
|
1237 | } |
|
|
1238 | |
|
|
1239 | void |
|
|
1240 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1241 | { |
|
|
1242 | ev_clear_pending (EV_A_ (W)w); |
|
|
1243 | if (ev_is_active (w)) |
|
|
1244 | return; |
|
|
1245 | |
|
|
1246 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1247 | ev_stop (EV_A_ (W)w); |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | void |
|
|
1251 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1252 | { |
|
|
1253 | if (ev_is_active (w)) |
|
|
1254 | return; |
|
|
1255 | |
|
|
1256 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1257 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1258 | prepares [preparecnt - 1] = w; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | void |
|
|
1262 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1263 | { |
|
|
1264 | ev_clear_pending (EV_A_ (W)w); |
|
|
1265 | if (ev_is_active (w)) |
|
|
1266 | return; |
|
|
1267 | |
|
|
1268 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1269 | ev_stop (EV_A_ (W)w); |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | void |
|
|
1273 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1274 | { |
|
|
1275 | if (ev_is_active (w)) |
|
|
1276 | return; |
|
|
1277 | |
|
|
1278 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1279 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1280 | checks [checkcnt - 1] = w; |
|
|
1281 | } |
|
|
1282 | |
|
|
1283 | void |
|
|
1284 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1285 | { |
|
|
1286 | ev_clear_pending (EV_A_ (W)w); |
|
|
1287 | if (ev_is_active (w)) |
|
|
1288 | return; |
|
|
1289 | |
|
|
1290 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1291 | ev_stop (EV_A_ (W)w); |
|
|
1292 | } |
|
|
1293 | |
|
|
1294 | #ifndef SA_RESTART |
|
|
1295 | # define SA_RESTART 0 |
|
|
1296 | #endif |
|
|
1297 | |
|
|
1298 | void |
|
|
1299 | ev_signal_start (EV_P_ struct ev_signal *w) |
|
|
1300 | { |
|
|
1301 | #if EV_MULTIPLICITY |
|
|
1302 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1303 | #endif |
|
|
1304 | if (ev_is_active (w)) |
|
|
1305 | return; |
|
|
1306 | |
1019 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1307 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1020 | |
1308 | |
1021 | ev_start ((W)w, 1); |
1309 | ev_start (EV_A_ (W)w, 1); |
1022 | array_needsize (signals, signalmax, w->signum, signals_init); |
1310 | array_needsize (signals, signalmax, w->signum, signals_init); |
1023 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1311 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1024 | |
1312 | |
1025 | if (!w->next) |
1313 | if (!((WL)w)->next) |
1026 | { |
1314 | { |
1027 | struct sigaction sa; |
1315 | struct sigaction sa; |
1028 | sa.sa_handler = sighandler; |
1316 | sa.sa_handler = sighandler; |
1029 | sigfillset (&sa.sa_mask); |
1317 | sigfillset (&sa.sa_mask); |
1030 | sa.sa_flags = 0; |
1318 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1031 | sigaction (w->signum, &sa, 0); |
1319 | sigaction (w->signum, &sa, 0); |
1032 | } |
1320 | } |
1033 | } |
1321 | } |
1034 | |
1322 | |
1035 | void |
1323 | void |
1036 | ev_signal_stop (struct ev_signal *w) |
1324 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1037 | { |
1325 | { |
1038 | ev_clear_pending ((W)w); |
1326 | ev_clear_pending (EV_A_ (W)w); |
1039 | if (!ev_is_active (w)) |
1327 | if (!ev_is_active (w)) |
1040 | return; |
1328 | return; |
1041 | |
1329 | |
1042 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1330 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1043 | ev_stop ((W)w); |
1331 | ev_stop (EV_A_ (W)w); |
1044 | |
1332 | |
1045 | if (!signals [w->signum - 1].head) |
1333 | if (!signals [w->signum - 1].head) |
1046 | signal (w->signum, SIG_DFL); |
1334 | signal (w->signum, SIG_DFL); |
1047 | } |
1335 | } |
1048 | |
1336 | |
1049 | void |
1337 | void |
1050 | ev_idle_start (struct ev_idle *w) |
1338 | ev_child_start (EV_P_ struct ev_child *w) |
1051 | { |
1339 | { |
|
|
1340 | #if EV_MULTIPLICITY |
|
|
1341 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1342 | #endif |
1052 | if (ev_is_active (w)) |
1343 | if (ev_is_active (w)) |
1053 | return; |
1344 | return; |
1054 | |
1345 | |
1055 | ev_start ((W)w, ++idlecnt); |
1346 | ev_start (EV_A_ (W)w, 1); |
1056 | array_needsize (idles, idlemax, idlecnt, ); |
1347 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1057 | idles [idlecnt - 1] = w; |
|
|
1058 | } |
1348 | } |
1059 | |
1349 | |
1060 | void |
1350 | void |
1061 | ev_idle_stop (struct ev_idle *w) |
1351 | ev_child_stop (EV_P_ struct ev_child *w) |
1062 | { |
1352 | { |
1063 | ev_clear_pending ((W)w); |
1353 | ev_clear_pending (EV_A_ (W)w); |
1064 | if (ev_is_active (w)) |
1354 | if (ev_is_active (w)) |
1065 | return; |
1355 | return; |
1066 | |
1356 | |
1067 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1068 | ev_stop ((W)w); |
|
|
1069 | } |
|
|
1070 | |
|
|
1071 | void |
|
|
1072 | ev_prepare_start (struct ev_prepare *w) |
|
|
1073 | { |
|
|
1074 | if (ev_is_active (w)) |
|
|
1075 | return; |
|
|
1076 | |
|
|
1077 | ev_start ((W)w, ++preparecnt); |
|
|
1078 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1079 | prepares [preparecnt - 1] = w; |
|
|
1080 | } |
|
|
1081 | |
|
|
1082 | void |
|
|
1083 | ev_prepare_stop (struct ev_prepare *w) |
|
|
1084 | { |
|
|
1085 | ev_clear_pending ((W)w); |
|
|
1086 | if (ev_is_active (w)) |
|
|
1087 | return; |
|
|
1088 | |
|
|
1089 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1090 | ev_stop ((W)w); |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | void |
|
|
1094 | ev_check_start (struct ev_check *w) |
|
|
1095 | { |
|
|
1096 | if (ev_is_active (w)) |
|
|
1097 | return; |
|
|
1098 | |
|
|
1099 | ev_start ((W)w, ++checkcnt); |
|
|
1100 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1101 | checks [checkcnt - 1] = w; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | void |
|
|
1105 | ev_check_stop (struct ev_check *w) |
|
|
1106 | { |
|
|
1107 | ev_clear_pending ((W)w); |
|
|
1108 | if (ev_is_active (w)) |
|
|
1109 | return; |
|
|
1110 | |
|
|
1111 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1112 | ev_stop ((W)w); |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | void |
|
|
1116 | ev_child_start (struct ev_child *w) |
|
|
1117 | { |
|
|
1118 | if (ev_is_active (w)) |
|
|
1119 | return; |
|
|
1120 | |
|
|
1121 | ev_start ((W)w, 1); |
|
|
1122 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1123 | } |
|
|
1124 | |
|
|
1125 | void |
|
|
1126 | ev_child_stop (struct ev_child *w) |
|
|
1127 | { |
|
|
1128 | ev_clear_pending ((W)w); |
|
|
1129 | if (ev_is_active (w)) |
|
|
1130 | return; |
|
|
1131 | |
|
|
1132 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1357 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1133 | ev_stop ((W)w); |
1358 | ev_stop (EV_A_ (W)w); |
1134 | } |
1359 | } |
1135 | |
1360 | |
1136 | /*****************************************************************************/ |
1361 | /*****************************************************************************/ |
1137 | |
1362 | |
1138 | struct ev_once |
1363 | struct ev_once |
… | |
… | |
1142 | void (*cb)(int revents, void *arg); |
1367 | void (*cb)(int revents, void *arg); |
1143 | void *arg; |
1368 | void *arg; |
1144 | }; |
1369 | }; |
1145 | |
1370 | |
1146 | static void |
1371 | static void |
1147 | once_cb (struct ev_once *once, int revents) |
1372 | once_cb (EV_P_ struct ev_once *once, int revents) |
1148 | { |
1373 | { |
1149 | void (*cb)(int revents, void *arg) = once->cb; |
1374 | void (*cb)(int revents, void *arg) = once->cb; |
1150 | void *arg = once->arg; |
1375 | void *arg = once->arg; |
1151 | |
1376 | |
1152 | ev_io_stop (&once->io); |
1377 | ev_io_stop (EV_A_ &once->io); |
1153 | ev_timer_stop (&once->to); |
1378 | ev_timer_stop (EV_A_ &once->to); |
1154 | free (once); |
1379 | free (once); |
1155 | |
1380 | |
1156 | cb (revents, arg); |
1381 | cb (revents, arg); |
1157 | } |
1382 | } |
1158 | |
1383 | |
1159 | static void |
1384 | static void |
1160 | once_cb_io (struct ev_io *w, int revents) |
1385 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1161 | { |
1386 | { |
1162 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1387 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1163 | } |
1388 | } |
1164 | |
1389 | |
1165 | static void |
1390 | static void |
1166 | once_cb_to (struct ev_timer *w, int revents) |
1391 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1167 | { |
1392 | { |
1168 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1393 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1169 | } |
1394 | } |
1170 | |
1395 | |
1171 | void |
1396 | void |
1172 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1397 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1173 | { |
1398 | { |
1174 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1399 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1175 | |
1400 | |
1176 | if (!once) |
1401 | if (!once) |
1177 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1402 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
… | |
… | |
1182 | |
1407 | |
1183 | ev_watcher_init (&once->io, once_cb_io); |
1408 | ev_watcher_init (&once->io, once_cb_io); |
1184 | if (fd >= 0) |
1409 | if (fd >= 0) |
1185 | { |
1410 | { |
1186 | ev_io_set (&once->io, fd, events); |
1411 | ev_io_set (&once->io, fd, events); |
1187 | ev_io_start (&once->io); |
1412 | ev_io_start (EV_A_ &once->io); |
1188 | } |
1413 | } |
1189 | |
1414 | |
1190 | ev_watcher_init (&once->to, once_cb_to); |
1415 | ev_watcher_init (&once->to, once_cb_to); |
1191 | if (timeout >= 0.) |
1416 | if (timeout >= 0.) |
1192 | { |
1417 | { |
1193 | ev_timer_set (&once->to, timeout, 0.); |
1418 | ev_timer_set (&once->to, timeout, 0.); |
1194 | ev_timer_start (&once->to); |
1419 | ev_timer_start (EV_A_ &once->to); |
1195 | } |
1420 | } |
1196 | } |
1421 | } |
1197 | } |
1422 | } |
1198 | |
1423 | |
1199 | /*****************************************************************************/ |
|
|
1200 | |
|
|
1201 | #if 0 |
|
|
1202 | |
|
|
1203 | struct ev_io wio; |
|
|
1204 | |
|
|
1205 | static void |
|
|
1206 | sin_cb (struct ev_io *w, int revents) |
|
|
1207 | { |
|
|
1208 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1209 | } |
|
|
1210 | |
|
|
1211 | static void |
|
|
1212 | ocb (struct ev_timer *w, int revents) |
|
|
1213 | { |
|
|
1214 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1215 | ev_timer_stop (w); |
|
|
1216 | ev_timer_start (w); |
|
|
1217 | } |
|
|
1218 | |
|
|
1219 | static void |
|
|
1220 | scb (struct ev_signal *w, int revents) |
|
|
1221 | { |
|
|
1222 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1223 | ev_io_stop (&wio); |
|
|
1224 | ev_io_start (&wio); |
|
|
1225 | } |
|
|
1226 | |
|
|
1227 | static void |
|
|
1228 | gcb (struct ev_signal *w, int revents) |
|
|
1229 | { |
|
|
1230 | fprintf (stderr, "generic %x\n", revents); |
|
|
1231 | |
|
|
1232 | } |
|
|
1233 | |
|
|
1234 | int main (void) |
|
|
1235 | { |
|
|
1236 | ev_init (0); |
|
|
1237 | |
|
|
1238 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1239 | ev_io_start (&wio); |
|
|
1240 | |
|
|
1241 | struct ev_timer t[10000]; |
|
|
1242 | |
|
|
1243 | #if 0 |
|
|
1244 | int i; |
|
|
1245 | for (i = 0; i < 10000; ++i) |
|
|
1246 | { |
|
|
1247 | struct ev_timer *w = t + i; |
|
|
1248 | ev_watcher_init (w, ocb, i); |
|
|
1249 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1250 | ev_timer_start (w); |
|
|
1251 | if (drand48 () < 0.5) |
|
|
1252 | ev_timer_stop (w); |
|
|
1253 | } |
|
|
1254 | #endif |
|
|
1255 | |
|
|
1256 | struct ev_timer t1; |
|
|
1257 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1258 | ev_timer_start (&t1); |
|
|
1259 | |
|
|
1260 | struct ev_signal sig; |
|
|
1261 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1262 | ev_signal_start (&sig); |
|
|
1263 | |
|
|
1264 | struct ev_check cw; |
|
|
1265 | ev_check_init (&cw, gcb); |
|
|
1266 | ev_check_start (&cw); |
|
|
1267 | |
|
|
1268 | struct ev_idle iw; |
|
|
1269 | ev_idle_init (&iw, gcb); |
|
|
1270 | ev_idle_start (&iw); |
|
|
1271 | |
|
|
1272 | ev_loop (0); |
|
|
1273 | |
|
|
1274 | return 0; |
|
|
1275 | } |
|
|
1276 | |
|
|
1277 | #endif |
|
|
1278 | |
|
|
1279 | |
|
|
1280 | |
|
|
1281 | |
|
|