… | |
… | |
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 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
31 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
37 | # include "config.h" |
33 | |
38 | |
34 | # if HAVE_CLOCK_GETTIME |
39 | # if HAVE_CLOCK_GETTIME |
|
|
40 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
41 | # define EV_USE_MONOTONIC 1 |
|
|
42 | # endif |
|
|
43 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
44 | # define EV_USE_REALTIME 1 |
|
|
45 | # endif |
37 | # endif |
46 | # endif |
38 | |
47 | |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
40 | # define EV_USE_SELECT 1 |
49 | # define EV_USE_SELECT 1 |
41 | # endif |
50 | # endif |
42 | |
51 | |
43 | # if HAVE_POLL && HAVE_POLL_H |
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
44 | # define EV_USE_POLL 1 |
53 | # define EV_USE_POLL 1 |
45 | # endif |
54 | # endif |
46 | |
55 | |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
56 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
48 | # define EV_USE_EPOLL 1 |
57 | # define EV_USE_EPOLL 1 |
49 | # endif |
58 | # endif |
50 | |
59 | |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
52 | # define EV_USE_KQUEUE 1 |
61 | # define EV_USE_KQUEUE 1 |
53 | # endif |
62 | # endif |
54 | |
63 | |
55 | #endif |
64 | #endif |
56 | |
65 | |
57 | #include <math.h> |
66 | #include <math.h> |
58 | #include <stdlib.h> |
67 | #include <stdlib.h> |
59 | #include <unistd.h> |
|
|
60 | #include <fcntl.h> |
68 | #include <fcntl.h> |
61 | #include <signal.h> |
|
|
62 | #include <stddef.h> |
69 | #include <stddef.h> |
63 | |
70 | |
64 | #include <stdio.h> |
71 | #include <stdio.h> |
65 | |
72 | |
66 | #include <assert.h> |
73 | #include <assert.h> |
67 | #include <errno.h> |
74 | #include <errno.h> |
68 | #include <sys/types.h> |
75 | #include <sys/types.h> |
|
|
76 | #include <time.h> |
|
|
77 | |
|
|
78 | #include <signal.h> |
|
|
79 | |
69 | #ifndef WIN32 |
80 | #ifndef WIN32 |
|
|
81 | # include <unistd.h> |
|
|
82 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
83 | # include <sys/wait.h> |
71 | #endif |
84 | #endif |
72 | #include <sys/time.h> |
|
|
73 | #include <time.h> |
|
|
74 | |
|
|
75 | /**/ |
85 | /**/ |
76 | |
86 | |
77 | #ifndef EV_USE_MONOTONIC |
87 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
88 | # define EV_USE_MONOTONIC 1 |
79 | #endif |
89 | #endif |
… | |
… | |
94 | # define EV_USE_KQUEUE 0 |
104 | # define EV_USE_KQUEUE 0 |
95 | #endif |
105 | #endif |
96 | |
106 | |
97 | #ifndef EV_USE_WIN32 |
107 | #ifndef EV_USE_WIN32 |
98 | # ifdef WIN32 |
108 | # ifdef WIN32 |
|
|
109 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
|
|
110 | # undef EV_USE_SELECT |
99 | # define EV_USE_WIN32 1 |
111 | # define EV_USE_SELECT 1 |
100 | # else |
112 | # else |
101 | # define EV_USE_WIN32 0 |
113 | # define EV_USE_WIN32 0 |
102 | # endif |
114 | # endif |
103 | #endif |
115 | #endif |
104 | |
116 | |
… | |
… | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
135 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
124 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
136 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
125 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
137 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
126 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
138 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
127 | |
139 | |
|
|
140 | #ifdef EV_H |
|
|
141 | # include EV_H |
|
|
142 | #else |
128 | #include "ev.h" |
143 | # include "ev.h" |
|
|
144 | #endif |
129 | |
145 | |
130 | #if __GNUC__ >= 3 |
146 | #if __GNUC__ >= 3 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
147 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
132 | # define inline inline |
148 | # define inline inline |
133 | #else |
149 | #else |
… | |
… | |
145 | typedef struct ev_watcher_list *WL; |
161 | typedef struct ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
162 | typedef struct ev_watcher_time *WT; |
147 | |
163 | |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
164 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
149 | |
165 | |
150 | #if WIN32 |
166 | #include "ev_win32.c" |
151 | /* note: the comment below could not be substantiated, but what would I care */ |
|
|
152 | /* MSDN says this is required to handle SIGFPE */ |
|
|
153 | volatile double SIGFPE_REQ = 0.0f; |
|
|
154 | #endif |
|
|
155 | |
167 | |
156 | /*****************************************************************************/ |
168 | /*****************************************************************************/ |
157 | |
169 | |
158 | static void (*syserr_cb)(void); |
170 | static void (*syserr_cb)(const char *msg); |
159 | |
171 | |
160 | void ev_set_syserr_cb (void (*cb)(void)) |
172 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
161 | { |
173 | { |
162 | syserr_cb = cb; |
174 | syserr_cb = cb; |
163 | } |
175 | } |
164 | |
176 | |
165 | static void |
177 | static void |
166 | syserr (void) |
178 | syserr (const char *msg) |
167 | { |
179 | { |
|
|
180 | if (!msg) |
|
|
181 | msg = "(libev) system error"; |
|
|
182 | |
168 | if (syserr_cb) |
183 | if (syserr_cb) |
169 | syserr_cb (); |
184 | syserr_cb (msg); |
170 | else |
185 | else |
171 | { |
186 | { |
172 | perror ("libev"); |
187 | perror (msg); |
173 | abort (); |
188 | abort (); |
174 | } |
189 | } |
175 | } |
190 | } |
176 | |
191 | |
177 | static void *(*alloc)(void *ptr, long size); |
192 | static void *(*alloc)(void *ptr, long size); |
… | |
… | |
213 | int events; |
228 | int events; |
214 | } ANPENDING; |
229 | } ANPENDING; |
215 | |
230 | |
216 | #if EV_MULTIPLICITY |
231 | #if EV_MULTIPLICITY |
217 | |
232 | |
218 | struct ev_loop |
233 | struct ev_loop |
219 | { |
234 | { |
|
|
235 | ev_tstamp ev_rt_now; |
220 | # define VAR(name,decl) decl; |
236 | #define VAR(name,decl) decl; |
221 | # include "ev_vars.h" |
237 | #include "ev_vars.h" |
222 | }; |
|
|
223 | # undef VAR |
238 | #undef VAR |
|
|
239 | }; |
224 | # include "ev_wrap.h" |
240 | #include "ev_wrap.h" |
|
|
241 | |
|
|
242 | struct ev_loop default_loop_struct; |
|
|
243 | static struct ev_loop *default_loop; |
225 | |
244 | |
226 | #else |
245 | #else |
227 | |
246 | |
|
|
247 | ev_tstamp ev_rt_now; |
228 | # define VAR(name,decl) static decl; |
248 | #define VAR(name,decl) static decl; |
229 | # include "ev_vars.h" |
249 | #include "ev_vars.h" |
230 | # undef VAR |
250 | #undef VAR |
|
|
251 | |
|
|
252 | static int default_loop; |
231 | |
253 | |
232 | #endif |
254 | #endif |
233 | |
255 | |
234 | /*****************************************************************************/ |
256 | /*****************************************************************************/ |
235 | |
257 | |
236 | inline ev_tstamp |
258 | ev_tstamp |
237 | ev_time (void) |
259 | ev_time (void) |
238 | { |
260 | { |
239 | #if EV_USE_REALTIME |
261 | #if EV_USE_REALTIME |
240 | struct timespec ts; |
262 | struct timespec ts; |
241 | clock_gettime (CLOCK_REALTIME, &ts); |
263 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
260 | #endif |
282 | #endif |
261 | |
283 | |
262 | return ev_time (); |
284 | return ev_time (); |
263 | } |
285 | } |
264 | |
286 | |
|
|
287 | #if EV_MULTIPLICITY |
265 | ev_tstamp |
288 | ev_tstamp |
266 | ev_now (EV_P) |
289 | ev_now (EV_P) |
267 | { |
290 | { |
268 | return rt_now; |
291 | return ev_rt_now; |
269 | } |
292 | } |
|
|
293 | #endif |
270 | |
294 | |
271 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
295 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
272 | |
296 | |
273 | #define array_needsize(base,cur,cnt,init) \ |
297 | #define array_needsize(type,base,cur,cnt,init) \ |
274 | if (expect_false ((cnt) > cur)) \ |
298 | if (expect_false ((cnt) > cur)) \ |
275 | { \ |
299 | { \ |
276 | int newcnt = cur; \ |
300 | int newcnt = cur; \ |
277 | do \ |
301 | do \ |
278 | { \ |
302 | { \ |
279 | newcnt = array_roundsize (base, newcnt << 1); \ |
303 | newcnt = array_roundsize (type, newcnt << 1); \ |
280 | } \ |
304 | } \ |
281 | while ((cnt) > newcnt); \ |
305 | while ((cnt) > newcnt); \ |
282 | \ |
306 | \ |
283 | base = ev_realloc (base, sizeof (*base) * (newcnt)); \ |
307 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
284 | init (base + cur, newcnt - cur); \ |
308 | init (base + cur, newcnt - cur); \ |
285 | cur = newcnt; \ |
309 | cur = newcnt; \ |
286 | } |
310 | } |
287 | |
311 | |
288 | #define array_slim(stem) \ |
312 | #define array_slim(type,stem) \ |
289 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
313 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
290 | { \ |
314 | { \ |
291 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
315 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
292 | base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ |
316 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
293 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
317 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
294 | } |
318 | } |
|
|
319 | |
|
|
320 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
321 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
322 | #define array_free_microshit(stem) \ |
|
|
323 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
295 | |
324 | |
296 | #define array_free(stem, idx) \ |
325 | #define array_free(stem, idx) \ |
297 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
326 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
298 | |
327 | |
299 | /*****************************************************************************/ |
328 | /*****************************************************************************/ |
… | |
… | |
309 | |
338 | |
310 | ++base; |
339 | ++base; |
311 | } |
340 | } |
312 | } |
341 | } |
313 | |
342 | |
314 | static void |
343 | void |
315 | event (EV_P_ W w, int events) |
344 | ev_feed_event (EV_P_ void *w, int revents) |
316 | { |
345 | { |
|
|
346 | W w_ = (W)w; |
|
|
347 | |
317 | if (w->pending) |
348 | if (w_->pending) |
318 | { |
349 | { |
319 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
350 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
320 | return; |
351 | return; |
321 | } |
352 | } |
322 | |
353 | |
323 | w->pending = ++pendingcnt [ABSPRI (w)]; |
354 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
324 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
355 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
325 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
356 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
326 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
357 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
327 | } |
358 | } |
328 | |
359 | |
329 | static void |
360 | static void |
330 | queue_events (EV_P_ W *events, int eventcnt, int type) |
361 | queue_events (EV_P_ W *events, int eventcnt, int type) |
331 | { |
362 | { |
332 | int i; |
363 | int i; |
333 | |
364 | |
334 | for (i = 0; i < eventcnt; ++i) |
365 | for (i = 0; i < eventcnt; ++i) |
335 | event (EV_A_ events [i], type); |
366 | ev_feed_event (EV_A_ events [i], type); |
336 | } |
367 | } |
337 | |
368 | |
338 | static void |
369 | inline void |
339 | fd_event (EV_P_ int fd, int events) |
370 | fd_event (EV_P_ int fd, int revents) |
340 | { |
371 | { |
341 | ANFD *anfd = anfds + fd; |
372 | ANFD *anfd = anfds + fd; |
342 | struct ev_io *w; |
373 | struct ev_io *w; |
343 | |
374 | |
344 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
375 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
345 | { |
376 | { |
346 | int ev = w->events & events; |
377 | int ev = w->events & revents; |
347 | |
378 | |
348 | if (ev) |
379 | if (ev) |
349 | event (EV_A_ (W)w, ev); |
380 | ev_feed_event (EV_A_ (W)w, ev); |
350 | } |
381 | } |
|
|
382 | } |
|
|
383 | |
|
|
384 | void |
|
|
385 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
386 | { |
|
|
387 | fd_event (EV_A_ fd, revents); |
351 | } |
388 | } |
352 | |
389 | |
353 | /*****************************************************************************/ |
390 | /*****************************************************************************/ |
354 | |
391 | |
355 | static void |
392 | static void |
… | |
… | |
378 | } |
415 | } |
379 | |
416 | |
380 | static void |
417 | static void |
381 | fd_change (EV_P_ int fd) |
418 | fd_change (EV_P_ int fd) |
382 | { |
419 | { |
383 | if (anfds [fd].reify || fdchangecnt < 0) |
420 | if (anfds [fd].reify) |
384 | return; |
421 | return; |
385 | |
422 | |
386 | anfds [fd].reify = 1; |
423 | anfds [fd].reify = 1; |
387 | |
424 | |
388 | ++fdchangecnt; |
425 | ++fdchangecnt; |
389 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
426 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
390 | fdchanges [fdchangecnt - 1] = fd; |
427 | fdchanges [fdchangecnt - 1] = fd; |
391 | } |
428 | } |
392 | |
429 | |
393 | static void |
430 | static void |
394 | fd_kill (EV_P_ int fd) |
431 | fd_kill (EV_P_ int fd) |
… | |
… | |
396 | struct ev_io *w; |
433 | struct ev_io *w; |
397 | |
434 | |
398 | while ((w = (struct ev_io *)anfds [fd].head)) |
435 | while ((w = (struct ev_io *)anfds [fd].head)) |
399 | { |
436 | { |
400 | ev_io_stop (EV_A_ w); |
437 | ev_io_stop (EV_A_ w); |
401 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
438 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
402 | } |
439 | } |
|
|
440 | } |
|
|
441 | |
|
|
442 | static int |
|
|
443 | fd_valid (int fd) |
|
|
444 | { |
|
|
445 | #ifdef WIN32 |
|
|
446 | return !!win32_get_osfhandle (fd); |
|
|
447 | #else |
|
|
448 | return fcntl (fd, F_GETFD) != -1; |
|
|
449 | #endif |
403 | } |
450 | } |
404 | |
451 | |
405 | /* called on EBADF to verify fds */ |
452 | /* called on EBADF to verify fds */ |
406 | static void |
453 | static void |
407 | fd_ebadf (EV_P) |
454 | fd_ebadf (EV_P) |
408 | { |
455 | { |
409 | int fd; |
456 | int fd; |
410 | |
457 | |
411 | for (fd = 0; fd < anfdmax; ++fd) |
458 | for (fd = 0; fd < anfdmax; ++fd) |
412 | if (anfds [fd].events) |
459 | if (anfds [fd].events) |
413 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
460 | if (!fd_valid (fd) == -1 && errno == EBADF) |
414 | fd_kill (EV_A_ fd); |
461 | fd_kill (EV_A_ fd); |
415 | } |
462 | } |
416 | |
463 | |
417 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
464 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
418 | static void |
465 | static void |
… | |
… | |
426 | fd_kill (EV_A_ fd); |
473 | fd_kill (EV_A_ fd); |
427 | return; |
474 | return; |
428 | } |
475 | } |
429 | } |
476 | } |
430 | |
477 | |
431 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
478 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
432 | static void |
479 | static void |
433 | fd_rearm_all (EV_P) |
480 | fd_rearm_all (EV_P) |
434 | { |
481 | { |
435 | int fd; |
482 | int fd; |
436 | |
483 | |
… | |
… | |
484 | |
531 | |
485 | heap [k] = w; |
532 | heap [k] = w; |
486 | ((W)heap [k])->active = k + 1; |
533 | ((W)heap [k])->active = k + 1; |
487 | } |
534 | } |
488 | |
535 | |
|
|
536 | inline void |
|
|
537 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
|
|
538 | { |
|
|
539 | ev_tstamp old_at = heap [k]->at; |
|
|
540 | heap [k]->at = at; |
|
|
541 | |
|
|
542 | if (old_at < at) |
|
|
543 | downheap (heap, N, k); |
|
|
544 | else |
|
|
545 | upheap (heap, k); |
|
|
546 | } |
|
|
547 | |
489 | /*****************************************************************************/ |
548 | /*****************************************************************************/ |
490 | |
549 | |
491 | typedef struct |
550 | typedef struct |
492 | { |
551 | { |
493 | WL head; |
552 | WL head; |
… | |
… | |
524 | |
583 | |
525 | if (!gotsig) |
584 | if (!gotsig) |
526 | { |
585 | { |
527 | int old_errno = errno; |
586 | int old_errno = errno; |
528 | gotsig = 1; |
587 | gotsig = 1; |
|
|
588 | #ifdef WIN32 |
|
|
589 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
590 | #else |
529 | write (sigpipe [1], &signum, 1); |
591 | write (sigpipe [1], &signum, 1); |
|
|
592 | #endif |
530 | errno = old_errno; |
593 | errno = old_errno; |
531 | } |
594 | } |
532 | } |
595 | } |
533 | |
596 | |
|
|
597 | void |
|
|
598 | ev_feed_signal_event (EV_P_ int signum) |
|
|
599 | { |
|
|
600 | WL w; |
|
|
601 | |
|
|
602 | #if EV_MULTIPLICITY |
|
|
603 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
604 | #endif |
|
|
605 | |
|
|
606 | --signum; |
|
|
607 | |
|
|
608 | if (signum < 0 || signum >= signalmax) |
|
|
609 | return; |
|
|
610 | |
|
|
611 | signals [signum].gotsig = 0; |
|
|
612 | |
|
|
613 | for (w = signals [signum].head; w; w = w->next) |
|
|
614 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
615 | } |
|
|
616 | |
534 | static void |
617 | static void |
535 | sigcb (EV_P_ struct ev_io *iow, int revents) |
618 | sigcb (EV_P_ struct ev_io *iow, int revents) |
536 | { |
619 | { |
537 | WL w; |
|
|
538 | int signum; |
620 | int signum; |
539 | |
621 | |
|
|
622 | #ifdef WIN32 |
|
|
623 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
624 | #else |
540 | read (sigpipe [0], &revents, 1); |
625 | read (sigpipe [0], &revents, 1); |
|
|
626 | #endif |
541 | gotsig = 0; |
627 | gotsig = 0; |
542 | |
628 | |
543 | for (signum = signalmax; signum--; ) |
629 | for (signum = signalmax; signum--; ) |
544 | if (signals [signum].gotsig) |
630 | if (signals [signum].gotsig) |
545 | { |
631 | ev_feed_signal_event (EV_A_ signum + 1); |
546 | signals [signum].gotsig = 0; |
|
|
547 | |
|
|
548 | for (w = signals [signum].head; w; w = w->next) |
|
|
549 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
550 | } |
|
|
551 | } |
632 | } |
552 | |
633 | |
553 | static void |
634 | static void |
554 | siginit (EV_P) |
635 | siginit (EV_P) |
555 | { |
636 | { |
… | |
… | |
567 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
648 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
568 | } |
649 | } |
569 | |
650 | |
570 | /*****************************************************************************/ |
651 | /*****************************************************************************/ |
571 | |
652 | |
|
|
653 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
654 | |
572 | #ifndef WIN32 |
655 | #ifndef WIN32 |
573 | |
656 | |
574 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
575 | static struct ev_signal childev; |
657 | static struct ev_signal childev; |
576 | |
658 | |
577 | #ifndef WCONTINUED |
659 | #ifndef WCONTINUED |
578 | # define WCONTINUED 0 |
660 | # define WCONTINUED 0 |
579 | #endif |
661 | #endif |
… | |
… | |
587 | if (w->pid == pid || !w->pid) |
669 | if (w->pid == pid || !w->pid) |
588 | { |
670 | { |
589 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
671 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
590 | w->rpid = pid; |
672 | w->rpid = pid; |
591 | w->rstatus = status; |
673 | w->rstatus = status; |
592 | event (EV_A_ (W)w, EV_CHILD); |
674 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
593 | } |
675 | } |
594 | } |
676 | } |
595 | |
677 | |
596 | static void |
678 | static void |
597 | childcb (EV_P_ struct ev_signal *sw, int revents) |
679 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
599 | int pid, status; |
681 | int pid, status; |
600 | |
682 | |
601 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
683 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
602 | { |
684 | { |
603 | /* make sure we are called again until all childs have been reaped */ |
685 | /* make sure we are called again until all childs have been reaped */ |
604 | event (EV_A_ (W)sw, EV_SIGNAL); |
686 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
605 | |
687 | |
606 | child_reap (EV_A_ sw, pid, pid, status); |
688 | child_reap (EV_A_ sw, pid, pid, status); |
607 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
689 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
608 | } |
690 | } |
609 | } |
691 | } |
… | |
… | |
666 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
748 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
667 | have_monotonic = 1; |
749 | have_monotonic = 1; |
668 | } |
750 | } |
669 | #endif |
751 | #endif |
670 | |
752 | |
671 | rt_now = ev_time (); |
753 | ev_rt_now = ev_time (); |
672 | mn_now = get_clock (); |
754 | mn_now = get_clock (); |
673 | now_floor = mn_now; |
755 | now_floor = mn_now; |
674 | rtmn_diff = rt_now - mn_now; |
756 | rtmn_diff = ev_rt_now - mn_now; |
675 | |
757 | |
676 | if (methods == EVMETHOD_AUTO) |
758 | if (methods == EVMETHOD_AUTO) |
677 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
759 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
678 | methods = atoi (getenv ("LIBEV_METHODS")); |
760 | methods = atoi (getenv ("LIBEV_METHODS")); |
679 | else |
761 | else |
… | |
… | |
693 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
775 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
694 | #endif |
776 | #endif |
695 | #if EV_USE_SELECT |
777 | #if EV_USE_SELECT |
696 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
778 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
697 | #endif |
779 | #endif |
|
|
780 | |
|
|
781 | ev_init (&sigev, sigcb); |
|
|
782 | ev_set_priority (&sigev, EV_MAXPRI); |
698 | } |
783 | } |
699 | } |
784 | } |
700 | |
785 | |
701 | void |
786 | void |
702 | loop_destroy (EV_P) |
787 | loop_destroy (EV_P) |
… | |
… | |
720 | #endif |
805 | #endif |
721 | |
806 | |
722 | for (i = NUMPRI; i--; ) |
807 | for (i = NUMPRI; i--; ) |
723 | array_free (pending, [i]); |
808 | array_free (pending, [i]); |
724 | |
809 | |
|
|
810 | /* have to use the microsoft-never-gets-it-right macro */ |
725 | array_free (fdchange, ); |
811 | array_free_microshit (fdchange); |
726 | array_free (timer, ); |
812 | array_free_microshit (timer); |
|
|
813 | #if EV_PERIODICS |
727 | array_free (periodic, ); |
814 | array_free_microshit (periodic); |
|
|
815 | #endif |
728 | array_free (idle, ); |
816 | array_free_microshit (idle); |
729 | array_free (prepare, ); |
817 | array_free_microshit (prepare); |
730 | array_free (check, ); |
818 | array_free_microshit (check); |
731 | |
819 | |
732 | method = 0; |
820 | method = 0; |
733 | /*TODO*/ |
|
|
734 | } |
821 | } |
735 | |
822 | |
736 | void |
823 | static void |
737 | loop_fork (EV_P) |
824 | loop_fork (EV_P) |
738 | { |
825 | { |
739 | /*TODO*/ |
|
|
740 | #if EV_USE_EPOLL |
826 | #if EV_USE_EPOLL |
741 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
827 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
742 | #endif |
828 | #endif |
743 | #if EV_USE_KQUEUE |
829 | #if EV_USE_KQUEUE |
744 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
830 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
745 | #endif |
831 | #endif |
|
|
832 | |
|
|
833 | if (ev_is_active (&sigev)) |
|
|
834 | { |
|
|
835 | /* default loop */ |
|
|
836 | |
|
|
837 | ev_ref (EV_A); |
|
|
838 | ev_io_stop (EV_A_ &sigev); |
|
|
839 | close (sigpipe [0]); |
|
|
840 | close (sigpipe [1]); |
|
|
841 | |
|
|
842 | while (pipe (sigpipe)) |
|
|
843 | syserr ("(libev) error creating pipe"); |
|
|
844 | |
|
|
845 | siginit (EV_A); |
|
|
846 | } |
|
|
847 | |
|
|
848 | postfork = 0; |
746 | } |
849 | } |
747 | |
850 | |
748 | #if EV_MULTIPLICITY |
851 | #if EV_MULTIPLICITY |
749 | struct ev_loop * |
852 | struct ev_loop * |
750 | ev_loop_new (int methods) |
853 | ev_loop_new (int methods) |
… | |
… | |
769 | } |
872 | } |
770 | |
873 | |
771 | void |
874 | void |
772 | ev_loop_fork (EV_P) |
875 | ev_loop_fork (EV_P) |
773 | { |
876 | { |
774 | loop_fork (EV_A); |
877 | postfork = 1; |
775 | } |
878 | } |
776 | |
879 | |
777 | #endif |
880 | #endif |
778 | |
881 | |
779 | #if EV_MULTIPLICITY |
882 | #if EV_MULTIPLICITY |
780 | struct ev_loop default_loop_struct; |
|
|
781 | static struct ev_loop *default_loop; |
|
|
782 | |
|
|
783 | struct ev_loop * |
883 | struct ev_loop * |
784 | #else |
884 | #else |
785 | static int default_loop; |
|
|
786 | |
|
|
787 | int |
885 | int |
788 | #endif |
886 | #endif |
789 | ev_default_loop (int methods) |
887 | ev_default_loop (int methods) |
790 | { |
888 | { |
791 | if (sigpipe [0] == sigpipe [1]) |
889 | if (sigpipe [0] == sigpipe [1]) |
… | |
… | |
802 | |
900 | |
803 | loop_init (EV_A_ methods); |
901 | loop_init (EV_A_ methods); |
804 | |
902 | |
805 | if (ev_method (EV_A)) |
903 | if (ev_method (EV_A)) |
806 | { |
904 | { |
807 | ev_watcher_init (&sigev, sigcb); |
|
|
808 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
809 | siginit (EV_A); |
905 | siginit (EV_A); |
810 | |
906 | |
811 | #ifndef WIN32 |
907 | #ifndef WIN32 |
812 | ev_signal_init (&childev, childcb, SIGCHLD); |
908 | ev_signal_init (&childev, childcb, SIGCHLD); |
813 | ev_set_priority (&childev, EV_MAXPRI); |
909 | ev_set_priority (&childev, EV_MAXPRI); |
… | |
… | |
827 | { |
923 | { |
828 | #if EV_MULTIPLICITY |
924 | #if EV_MULTIPLICITY |
829 | struct ev_loop *loop = default_loop; |
925 | struct ev_loop *loop = default_loop; |
830 | #endif |
926 | #endif |
831 | |
927 | |
|
|
928 | #ifndef WIN32 |
832 | ev_ref (EV_A); /* child watcher */ |
929 | ev_ref (EV_A); /* child watcher */ |
833 | ev_signal_stop (EV_A_ &childev); |
930 | ev_signal_stop (EV_A_ &childev); |
|
|
931 | #endif |
834 | |
932 | |
835 | ev_ref (EV_A); /* signal watcher */ |
933 | ev_ref (EV_A); /* signal watcher */ |
836 | ev_io_stop (EV_A_ &sigev); |
934 | ev_io_stop (EV_A_ &sigev); |
837 | |
935 | |
838 | close (sigpipe [0]); sigpipe [0] = 0; |
936 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
846 | { |
944 | { |
847 | #if EV_MULTIPLICITY |
945 | #if EV_MULTIPLICITY |
848 | struct ev_loop *loop = default_loop; |
946 | struct ev_loop *loop = default_loop; |
849 | #endif |
947 | #endif |
850 | |
948 | |
851 | loop_fork (EV_A); |
949 | if (method) |
852 | |
950 | postfork = 1; |
853 | ev_io_stop (EV_A_ &sigev); |
|
|
854 | close (sigpipe [0]); |
|
|
855 | close (sigpipe [1]); |
|
|
856 | pipe (sigpipe); |
|
|
857 | |
|
|
858 | ev_ref (EV_A); /* signal watcher */ |
|
|
859 | siginit (EV_A); |
|
|
860 | } |
951 | } |
861 | |
952 | |
862 | /*****************************************************************************/ |
953 | /*****************************************************************************/ |
|
|
954 | |
|
|
955 | static int |
|
|
956 | any_pending (EV_P) |
|
|
957 | { |
|
|
958 | int pri; |
|
|
959 | |
|
|
960 | for (pri = NUMPRI; pri--; ) |
|
|
961 | if (pendingcnt [pri]) |
|
|
962 | return 1; |
|
|
963 | |
|
|
964 | return 0; |
|
|
965 | } |
863 | |
966 | |
864 | static void |
967 | static void |
865 | call_pending (EV_P) |
968 | call_pending (EV_P) |
866 | { |
969 | { |
867 | int pri; |
970 | int pri; |
… | |
… | |
872 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
975 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
873 | |
976 | |
874 | if (p->w) |
977 | if (p->w) |
875 | { |
978 | { |
876 | p->w->pending = 0; |
979 | p->w->pending = 0; |
877 | p->w->cb (EV_A_ p->w, p->events); |
980 | EV_CB_INVOKE (p->w, p->events); |
878 | } |
981 | } |
879 | } |
982 | } |
880 | } |
983 | } |
881 | |
984 | |
882 | static void |
985 | static void |
… | |
… | |
890 | |
993 | |
891 | /* first reschedule or stop timer */ |
994 | /* first reschedule or stop timer */ |
892 | if (w->repeat) |
995 | if (w->repeat) |
893 | { |
996 | { |
894 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
997 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
998 | |
895 | ((WT)w)->at = mn_now + w->repeat; |
999 | ((WT)w)->at += w->repeat; |
|
|
1000 | if (((WT)w)->at < mn_now) |
|
|
1001 | ((WT)w)->at = mn_now; |
|
|
1002 | |
896 | downheap ((WT *)timers, timercnt, 0); |
1003 | downheap ((WT *)timers, timercnt, 0); |
897 | } |
1004 | } |
898 | else |
1005 | else |
899 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1006 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
900 | |
1007 | |
901 | event (EV_A_ (W)w, EV_TIMEOUT); |
1008 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
902 | } |
1009 | } |
903 | } |
1010 | } |
904 | |
1011 | |
|
|
1012 | #if EV_PERIODICS |
905 | static void |
1013 | static void |
906 | periodics_reify (EV_P) |
1014 | periodics_reify (EV_P) |
907 | { |
1015 | { |
908 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1016 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
909 | { |
1017 | { |
910 | struct ev_periodic *w = periodics [0]; |
1018 | struct ev_periodic *w = periodics [0]; |
911 | |
1019 | |
912 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1020 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
913 | |
1021 | |
914 | /* first reschedule or stop timer */ |
1022 | /* first reschedule or stop timer */ |
915 | if (w->interval) |
1023 | if (w->reschedule_cb) |
916 | { |
1024 | { |
|
|
1025 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1026 | |
|
|
1027 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1028 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1029 | } |
|
|
1030 | else if (w->interval) |
|
|
1031 | { |
917 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1032 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
918 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1033 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
919 | downheap ((WT *)periodics, periodiccnt, 0); |
1034 | downheap ((WT *)periodics, periodiccnt, 0); |
920 | } |
1035 | } |
921 | else |
1036 | else |
922 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1037 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
923 | |
1038 | |
924 | event (EV_A_ (W)w, EV_PERIODIC); |
1039 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
925 | } |
1040 | } |
926 | } |
1041 | } |
927 | |
1042 | |
928 | static void |
1043 | static void |
929 | periodics_reschedule (EV_P) |
1044 | periodics_reschedule (EV_P) |
… | |
… | |
933 | /* adjust periodics after time jump */ |
1048 | /* adjust periodics after time jump */ |
934 | for (i = 0; i < periodiccnt; ++i) |
1049 | for (i = 0; i < periodiccnt; ++i) |
935 | { |
1050 | { |
936 | struct ev_periodic *w = periodics [i]; |
1051 | struct ev_periodic *w = periodics [i]; |
937 | |
1052 | |
|
|
1053 | if (w->reschedule_cb) |
|
|
1054 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
938 | if (w->interval) |
1055 | else if (w->interval) |
939 | { |
|
|
940 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1056 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
941 | |
|
|
942 | if (fabs (diff) >= 1e-4) |
|
|
943 | { |
|
|
944 | ev_periodic_stop (EV_A_ w); |
|
|
945 | ev_periodic_start (EV_A_ w); |
|
|
946 | |
|
|
947 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
948 | } |
|
|
949 | } |
|
|
950 | } |
1057 | } |
|
|
1058 | |
|
|
1059 | /* now rebuild the heap */ |
|
|
1060 | for (i = periodiccnt >> 1; i--; ) |
|
|
1061 | downheap ((WT *)periodics, periodiccnt, i); |
951 | } |
1062 | } |
|
|
1063 | #endif |
952 | |
1064 | |
953 | inline int |
1065 | inline int |
954 | time_update_monotonic (EV_P) |
1066 | time_update_monotonic (EV_P) |
955 | { |
1067 | { |
956 | mn_now = get_clock (); |
1068 | mn_now = get_clock (); |
957 | |
1069 | |
958 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1070 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
959 | { |
1071 | { |
960 | rt_now = rtmn_diff + mn_now; |
1072 | ev_rt_now = rtmn_diff + mn_now; |
961 | return 0; |
1073 | return 0; |
962 | } |
1074 | } |
963 | else |
1075 | else |
964 | { |
1076 | { |
965 | now_floor = mn_now; |
1077 | now_floor = mn_now; |
966 | rt_now = ev_time (); |
1078 | ev_rt_now = ev_time (); |
967 | return 1; |
1079 | return 1; |
968 | } |
1080 | } |
969 | } |
1081 | } |
970 | |
1082 | |
971 | static void |
1083 | static void |
… | |
… | |
980 | { |
1092 | { |
981 | ev_tstamp odiff = rtmn_diff; |
1093 | ev_tstamp odiff = rtmn_diff; |
982 | |
1094 | |
983 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1095 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
984 | { |
1096 | { |
985 | rtmn_diff = rt_now - mn_now; |
1097 | rtmn_diff = ev_rt_now - mn_now; |
986 | |
1098 | |
987 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1099 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
988 | return; /* all is well */ |
1100 | return; /* all is well */ |
989 | |
1101 | |
990 | rt_now = ev_time (); |
1102 | ev_rt_now = ev_time (); |
991 | mn_now = get_clock (); |
1103 | mn_now = get_clock (); |
992 | now_floor = mn_now; |
1104 | now_floor = mn_now; |
993 | } |
1105 | } |
994 | |
1106 | |
|
|
1107 | # if EV_PERIODICS |
995 | periodics_reschedule (EV_A); |
1108 | periodics_reschedule (EV_A); |
|
|
1109 | # endif |
996 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1110 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
997 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1111 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
998 | } |
1112 | } |
999 | } |
1113 | } |
1000 | else |
1114 | else |
1001 | #endif |
1115 | #endif |
1002 | { |
1116 | { |
1003 | rt_now = ev_time (); |
1117 | ev_rt_now = ev_time (); |
1004 | |
1118 | |
1005 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1119 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1006 | { |
1120 | { |
|
|
1121 | #if EV_PERIODICS |
1007 | periodics_reschedule (EV_A); |
1122 | periodics_reschedule (EV_A); |
|
|
1123 | #endif |
1008 | |
1124 | |
1009 | /* adjust timers. this is easy, as the offset is the same for all */ |
1125 | /* adjust timers. this is easy, as the offset is the same for all */ |
1010 | for (i = 0; i < timercnt; ++i) |
1126 | for (i = 0; i < timercnt; ++i) |
1011 | ((WT)timers [i])->at += rt_now - mn_now; |
1127 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1012 | } |
1128 | } |
1013 | |
1129 | |
1014 | mn_now = rt_now; |
1130 | mn_now = ev_rt_now; |
1015 | } |
1131 | } |
1016 | } |
1132 | } |
1017 | |
1133 | |
1018 | void |
1134 | void |
1019 | ev_ref (EV_P) |
1135 | ev_ref (EV_P) |
… | |
… | |
1042 | { |
1158 | { |
1043 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1159 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1044 | call_pending (EV_A); |
1160 | call_pending (EV_A); |
1045 | } |
1161 | } |
1046 | |
1162 | |
|
|
1163 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1164 | if (expect_false (postfork)) |
|
|
1165 | loop_fork (EV_A); |
|
|
1166 | |
1047 | /* update fd-related kernel structures */ |
1167 | /* update fd-related kernel structures */ |
1048 | fd_reify (EV_A); |
1168 | fd_reify (EV_A); |
1049 | |
1169 | |
1050 | /* calculate blocking time */ |
1170 | /* calculate blocking time */ |
1051 | |
1171 | |
1052 | /* we only need this for !monotonic clockor timers, but as we basically |
1172 | /* we only need this for !monotonic clock or timers, but as we basically |
1053 | always have timers, we just calculate it always */ |
1173 | always have timers, we just calculate it always */ |
1054 | #if EV_USE_MONOTONIC |
1174 | #if EV_USE_MONOTONIC |
1055 | if (expect_true (have_monotonic)) |
1175 | if (expect_true (have_monotonic)) |
1056 | time_update_monotonic (EV_A); |
1176 | time_update_monotonic (EV_A); |
1057 | else |
1177 | else |
1058 | #endif |
1178 | #endif |
1059 | { |
1179 | { |
1060 | rt_now = ev_time (); |
1180 | ev_rt_now = ev_time (); |
1061 | mn_now = rt_now; |
1181 | mn_now = ev_rt_now; |
1062 | } |
1182 | } |
1063 | |
1183 | |
1064 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1184 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1065 | block = 0.; |
1185 | block = 0.; |
1066 | else |
1186 | else |
… | |
… | |
1071 | { |
1191 | { |
1072 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1192 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1073 | if (block > to) block = to; |
1193 | if (block > to) block = to; |
1074 | } |
1194 | } |
1075 | |
1195 | |
|
|
1196 | #if EV_PERIODICS |
1076 | if (periodiccnt) |
1197 | if (periodiccnt) |
1077 | { |
1198 | { |
1078 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1199 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1079 | if (block > to) block = to; |
1200 | if (block > to) block = to; |
1080 | } |
1201 | } |
|
|
1202 | #endif |
1081 | |
1203 | |
1082 | if (block < 0.) block = 0.; |
1204 | if (block < 0.) block = 0.; |
1083 | } |
1205 | } |
1084 | |
1206 | |
1085 | method_poll (EV_A_ block); |
1207 | method_poll (EV_A_ block); |
1086 | |
1208 | |
1087 | /* update rt_now, do magic */ |
1209 | /* update ev_rt_now, do magic */ |
1088 | time_update (EV_A); |
1210 | time_update (EV_A); |
1089 | |
1211 | |
1090 | /* queue pending timers and reschedule them */ |
1212 | /* queue pending timers and reschedule them */ |
1091 | timers_reify (EV_A); /* relative timers called last */ |
1213 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1214 | #if EV_PERIODICS |
1092 | periodics_reify (EV_A); /* absolute timers called first */ |
1215 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1216 | #endif |
1093 | |
1217 | |
1094 | /* queue idle watchers unless io or timers are pending */ |
1218 | /* queue idle watchers unless io or timers are pending */ |
1095 | if (!pendingcnt) |
1219 | if (idlecnt && !any_pending (EV_A)) |
1096 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1220 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1097 | |
1221 | |
1098 | /* queue check watchers, to be executed first */ |
1222 | /* queue check watchers, to be executed first */ |
1099 | if (checkcnt) |
1223 | if (checkcnt) |
1100 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1224 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
… | |
… | |
1175 | return; |
1299 | return; |
1176 | |
1300 | |
1177 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1301 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1178 | |
1302 | |
1179 | ev_start (EV_A_ (W)w, 1); |
1303 | ev_start (EV_A_ (W)w, 1); |
1180 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1304 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1181 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1305 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1182 | |
1306 | |
1183 | fd_change (EV_A_ fd); |
1307 | fd_change (EV_A_ fd); |
1184 | } |
1308 | } |
1185 | |
1309 | |
… | |
… | |
1188 | { |
1312 | { |
1189 | ev_clear_pending (EV_A_ (W)w); |
1313 | ev_clear_pending (EV_A_ (W)w); |
1190 | if (!ev_is_active (w)) |
1314 | if (!ev_is_active (w)) |
1191 | return; |
1315 | return; |
1192 | |
1316 | |
|
|
1317 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1318 | |
1193 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1319 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1194 | ev_stop (EV_A_ (W)w); |
1320 | ev_stop (EV_A_ (W)w); |
1195 | |
1321 | |
1196 | fd_change (EV_A_ w->fd); |
1322 | fd_change (EV_A_ w->fd); |
1197 | } |
1323 | } |
… | |
… | |
1205 | ((WT)w)->at += mn_now; |
1331 | ((WT)w)->at += mn_now; |
1206 | |
1332 | |
1207 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1333 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1208 | |
1334 | |
1209 | ev_start (EV_A_ (W)w, ++timercnt); |
1335 | ev_start (EV_A_ (W)w, ++timercnt); |
1210 | array_needsize (timers, timermax, timercnt, ); |
1336 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1211 | timers [timercnt - 1] = w; |
1337 | timers [timercnt - 1] = w; |
1212 | upheap ((WT *)timers, timercnt - 1); |
1338 | upheap ((WT *)timers, timercnt - 1); |
1213 | |
1339 | |
1214 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1340 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1215 | } |
1341 | } |
… | |
… | |
1227 | { |
1353 | { |
1228 | timers [((W)w)->active - 1] = timers [timercnt]; |
1354 | timers [((W)w)->active - 1] = timers [timercnt]; |
1229 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1355 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1230 | } |
1356 | } |
1231 | |
1357 | |
1232 | ((WT)w)->at = w->repeat; |
1358 | ((WT)w)->at -= mn_now; |
1233 | |
1359 | |
1234 | ev_stop (EV_A_ (W)w); |
1360 | ev_stop (EV_A_ (W)w); |
1235 | } |
1361 | } |
1236 | |
1362 | |
1237 | void |
1363 | void |
1238 | ev_timer_again (EV_P_ struct ev_timer *w) |
1364 | ev_timer_again (EV_P_ struct ev_timer *w) |
1239 | { |
1365 | { |
1240 | if (ev_is_active (w)) |
1366 | if (ev_is_active (w)) |
1241 | { |
1367 | { |
1242 | if (w->repeat) |
1368 | if (w->repeat) |
1243 | { |
|
|
1244 | ((WT)w)->at = mn_now + w->repeat; |
|
|
1245 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1369 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
1246 | } |
|
|
1247 | else |
1370 | else |
1248 | ev_timer_stop (EV_A_ w); |
1371 | ev_timer_stop (EV_A_ w); |
1249 | } |
1372 | } |
1250 | else if (w->repeat) |
1373 | else if (w->repeat) |
1251 | ev_timer_start (EV_A_ w); |
1374 | ev_timer_start (EV_A_ w); |
1252 | } |
1375 | } |
1253 | |
1376 | |
|
|
1377 | #if EV_PERIODICS |
1254 | void |
1378 | void |
1255 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1379 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1256 | { |
1380 | { |
1257 | if (ev_is_active (w)) |
1381 | if (ev_is_active (w)) |
1258 | return; |
1382 | return; |
1259 | |
1383 | |
|
|
1384 | if (w->reschedule_cb) |
|
|
1385 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1386 | else if (w->interval) |
|
|
1387 | { |
1260 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1388 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1261 | |
|
|
1262 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1389 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1263 | if (w->interval) |
|
|
1264 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1390 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1391 | } |
1265 | |
1392 | |
1266 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1393 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1267 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1394 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1268 | periodics [periodiccnt - 1] = w; |
1395 | periodics [periodiccnt - 1] = w; |
1269 | upheap ((WT *)periodics, periodiccnt - 1); |
1396 | upheap ((WT *)periodics, periodiccnt - 1); |
1270 | |
1397 | |
1271 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1398 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1272 | } |
1399 | } |
… | |
… | |
1288 | |
1415 | |
1289 | ev_stop (EV_A_ (W)w); |
1416 | ev_stop (EV_A_ (W)w); |
1290 | } |
1417 | } |
1291 | |
1418 | |
1292 | void |
1419 | void |
|
|
1420 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1421 | { |
|
|
1422 | /* TODO: use adjustheap and recalculation */ |
|
|
1423 | ev_periodic_stop (EV_A_ w); |
|
|
1424 | ev_periodic_start (EV_A_ w); |
|
|
1425 | } |
|
|
1426 | #endif |
|
|
1427 | |
|
|
1428 | void |
1293 | ev_idle_start (EV_P_ struct ev_idle *w) |
1429 | ev_idle_start (EV_P_ struct ev_idle *w) |
1294 | { |
1430 | { |
1295 | if (ev_is_active (w)) |
1431 | if (ev_is_active (w)) |
1296 | return; |
1432 | return; |
1297 | |
1433 | |
1298 | ev_start (EV_A_ (W)w, ++idlecnt); |
1434 | ev_start (EV_A_ (W)w, ++idlecnt); |
1299 | array_needsize (idles, idlemax, idlecnt, ); |
1435 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
1300 | idles [idlecnt - 1] = w; |
1436 | idles [idlecnt - 1] = w; |
1301 | } |
1437 | } |
1302 | |
1438 | |
1303 | void |
1439 | void |
1304 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1440 | ev_idle_stop (EV_P_ struct ev_idle *w) |
… | |
… | |
1316 | { |
1452 | { |
1317 | if (ev_is_active (w)) |
1453 | if (ev_is_active (w)) |
1318 | return; |
1454 | return; |
1319 | |
1455 | |
1320 | ev_start (EV_A_ (W)w, ++preparecnt); |
1456 | ev_start (EV_A_ (W)w, ++preparecnt); |
1321 | array_needsize (prepares, preparemax, preparecnt, ); |
1457 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
1322 | prepares [preparecnt - 1] = w; |
1458 | prepares [preparecnt - 1] = w; |
1323 | } |
1459 | } |
1324 | |
1460 | |
1325 | void |
1461 | void |
1326 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1462 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
… | |
… | |
1338 | { |
1474 | { |
1339 | if (ev_is_active (w)) |
1475 | if (ev_is_active (w)) |
1340 | return; |
1476 | return; |
1341 | |
1477 | |
1342 | ev_start (EV_A_ (W)w, ++checkcnt); |
1478 | ev_start (EV_A_ (W)w, ++checkcnt); |
1343 | array_needsize (checks, checkmax, checkcnt, ); |
1479 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
1344 | checks [checkcnt - 1] = w; |
1480 | checks [checkcnt - 1] = w; |
1345 | } |
1481 | } |
1346 | |
1482 | |
1347 | void |
1483 | void |
1348 | ev_check_stop (EV_P_ struct ev_check *w) |
1484 | ev_check_stop (EV_P_ struct ev_check *w) |
1349 | { |
1485 | { |
1350 | ev_clear_pending (EV_A_ (W)w); |
1486 | ev_clear_pending (EV_A_ (W)w); |
1351 | if (ev_is_active (w)) |
1487 | if (!ev_is_active (w)) |
1352 | return; |
1488 | return; |
1353 | |
1489 | |
1354 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1490 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1355 | ev_stop (EV_A_ (W)w); |
1491 | ev_stop (EV_A_ (W)w); |
1356 | } |
1492 | } |
… | |
… | |
1369 | return; |
1505 | return; |
1370 | |
1506 | |
1371 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1507 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1372 | |
1508 | |
1373 | ev_start (EV_A_ (W)w, 1); |
1509 | ev_start (EV_A_ (W)w, 1); |
1374 | array_needsize (signals, signalmax, w->signum, signals_init); |
1510 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1375 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1511 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1376 | |
1512 | |
1377 | if (!((WL)w)->next) |
1513 | if (!((WL)w)->next) |
1378 | { |
1514 | { |
1379 | #if WIN32 |
1515 | #if WIN32 |
… | |
… | |
1417 | |
1553 | |
1418 | void |
1554 | void |
1419 | ev_child_stop (EV_P_ struct ev_child *w) |
1555 | ev_child_stop (EV_P_ struct ev_child *w) |
1420 | { |
1556 | { |
1421 | ev_clear_pending (EV_A_ (W)w); |
1557 | ev_clear_pending (EV_A_ (W)w); |
1422 | if (ev_is_active (w)) |
1558 | if (!ev_is_active (w)) |
1423 | return; |
1559 | return; |
1424 | |
1560 | |
1425 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1561 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1426 | ev_stop (EV_A_ (W)w); |
1562 | ev_stop (EV_A_ (W)w); |
1427 | } |
1563 | } |
… | |
… | |
1462 | } |
1598 | } |
1463 | |
1599 | |
1464 | void |
1600 | void |
1465 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1601 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1466 | { |
1602 | { |
1467 | struct ev_once *once = ev_malloc (sizeof (struct ev_once)); |
1603 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1468 | |
1604 | |
1469 | if (!once) |
1605 | if (!once) |
1470 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1606 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1471 | else |
1607 | else |
1472 | { |
1608 | { |
1473 | once->cb = cb; |
1609 | once->cb = cb; |
1474 | once->arg = arg; |
1610 | once->arg = arg; |
1475 | |
1611 | |
1476 | ev_watcher_init (&once->io, once_cb_io); |
1612 | ev_init (&once->io, once_cb_io); |
1477 | if (fd >= 0) |
1613 | if (fd >= 0) |
1478 | { |
1614 | { |
1479 | ev_io_set (&once->io, fd, events); |
1615 | ev_io_set (&once->io, fd, events); |
1480 | ev_io_start (EV_A_ &once->io); |
1616 | ev_io_start (EV_A_ &once->io); |
1481 | } |
1617 | } |
1482 | |
1618 | |
1483 | ev_watcher_init (&once->to, once_cb_to); |
1619 | ev_init (&once->to, once_cb_to); |
1484 | if (timeout >= 0.) |
1620 | if (timeout >= 0.) |
1485 | { |
1621 | { |
1486 | ev_timer_set (&once->to, timeout, 0.); |
1622 | ev_timer_set (&once->to, timeout, 0.); |
1487 | ev_timer_start (EV_A_ &once->to); |
1623 | ev_timer_start (EV_A_ &once->to); |
1488 | } |
1624 | } |
1489 | } |
1625 | } |
1490 | } |
1626 | } |
1491 | |
1627 | |
|
|
1628 | #ifdef __cplusplus |
|
|
1629 | } |
|
|
1630 | #endif |
|
|
1631 | |