… | |
… | |
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 |
35 | # define EV_USE_MONOTONIC 1 |
40 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
46 | |
51 | |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
52 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
48 | # define EV_USE_EPOLL 1 |
53 | # define EV_USE_EPOLL 1 |
49 | # endif |
54 | # endif |
50 | |
55 | |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
56 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
52 | # define EV_USE_KQUEUE 1 |
57 | # define EV_USE_KQUEUE 1 |
53 | # endif |
58 | # endif |
54 | |
59 | |
55 | #endif |
60 | #endif |
56 | |
61 | |
57 | #include <math.h> |
62 | #include <math.h> |
58 | #include <stdlib.h> |
63 | #include <stdlib.h> |
59 | #include <unistd.h> |
|
|
60 | #include <fcntl.h> |
64 | #include <fcntl.h> |
61 | #include <signal.h> |
|
|
62 | #include <stddef.h> |
65 | #include <stddef.h> |
63 | |
66 | |
64 | #include <stdio.h> |
67 | #include <stdio.h> |
65 | |
68 | |
66 | #include <assert.h> |
69 | #include <assert.h> |
67 | #include <errno.h> |
70 | #include <errno.h> |
68 | #include <sys/types.h> |
71 | #include <sys/types.h> |
|
|
72 | #include <time.h> |
|
|
73 | |
|
|
74 | #include <signal.h> |
|
|
75 | |
69 | #ifndef WIN32 |
76 | #ifndef WIN32 |
|
|
77 | # include <unistd.h> |
|
|
78 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
79 | # include <sys/wait.h> |
71 | #endif |
80 | #endif |
72 | #include <sys/time.h> |
|
|
73 | #include <time.h> |
|
|
74 | |
|
|
75 | /**/ |
81 | /**/ |
76 | |
82 | |
77 | #ifndef EV_USE_MONOTONIC |
83 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
84 | # define EV_USE_MONOTONIC 1 |
79 | #endif |
85 | #endif |
… | |
… | |
94 | # define EV_USE_KQUEUE 0 |
100 | # define EV_USE_KQUEUE 0 |
95 | #endif |
101 | #endif |
96 | |
102 | |
97 | #ifndef EV_USE_WIN32 |
103 | #ifndef EV_USE_WIN32 |
98 | # ifdef WIN32 |
104 | # ifdef WIN32 |
|
|
105 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
|
|
106 | # undef EV_USE_SELECT |
99 | # define EV_USE_WIN32 1 |
107 | # define EV_USE_SELECT 1 |
100 | # else |
108 | # else |
101 | # define EV_USE_WIN32 0 |
109 | # define EV_USE_WIN32 0 |
102 | # endif |
110 | # endif |
103 | #endif |
111 | #endif |
104 | |
112 | |
… | |
… | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
131 | #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) */ |
132 | #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 */ |
133 | #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 */ |
134 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
127 | |
135 | |
|
|
136 | #ifdef EV_H |
|
|
137 | # include EV_H |
|
|
138 | #else |
128 | #include "ev.h" |
139 | # include "ev.h" |
|
|
140 | #endif |
129 | |
141 | |
130 | #if __GNUC__ >= 3 |
142 | #if __GNUC__ >= 3 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
143 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
132 | # define inline inline |
144 | # define inline inline |
133 | #else |
145 | #else |
… | |
… | |
145 | typedef struct ev_watcher_list *WL; |
157 | typedef struct ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
158 | typedef struct ev_watcher_time *WT; |
147 | |
159 | |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
160 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
149 | |
161 | |
|
|
162 | #include "ev_win32.c" |
|
|
163 | |
150 | /*****************************************************************************/ |
164 | /*****************************************************************************/ |
151 | |
165 | |
|
|
166 | static void (*syserr_cb)(const char *msg); |
|
|
167 | |
|
|
168 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
169 | { |
|
|
170 | syserr_cb = cb; |
|
|
171 | } |
|
|
172 | |
|
|
173 | static void |
|
|
174 | syserr (const char *msg) |
|
|
175 | { |
|
|
176 | if (!msg) |
|
|
177 | msg = "(libev) system error"; |
|
|
178 | |
|
|
179 | if (syserr_cb) |
|
|
180 | syserr_cb (msg); |
|
|
181 | else |
|
|
182 | { |
|
|
183 | perror (msg); |
|
|
184 | abort (); |
|
|
185 | } |
|
|
186 | } |
|
|
187 | |
|
|
188 | static void *(*alloc)(void *ptr, long size); |
|
|
189 | |
|
|
190 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
191 | { |
|
|
192 | alloc = cb; |
|
|
193 | } |
|
|
194 | |
|
|
195 | static void * |
|
|
196 | ev_realloc (void *ptr, long size) |
|
|
197 | { |
|
|
198 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
199 | |
|
|
200 | if (!ptr && size) |
|
|
201 | { |
|
|
202 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
203 | abort (); |
|
|
204 | } |
|
|
205 | |
|
|
206 | return ptr; |
|
|
207 | } |
|
|
208 | |
|
|
209 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
210 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
211 | |
|
|
212 | /*****************************************************************************/ |
|
|
213 | |
152 | typedef struct |
214 | typedef struct |
153 | { |
215 | { |
154 | struct ev_watcher_list *head; |
216 | WL head; |
155 | unsigned char events; |
217 | unsigned char events; |
156 | unsigned char reify; |
218 | unsigned char reify; |
157 | } ANFD; |
219 | } ANFD; |
158 | |
220 | |
159 | typedef struct |
221 | typedef struct |
… | |
… | |
162 | int events; |
224 | int events; |
163 | } ANPENDING; |
225 | } ANPENDING; |
164 | |
226 | |
165 | #if EV_MULTIPLICITY |
227 | #if EV_MULTIPLICITY |
166 | |
228 | |
167 | struct ev_loop |
229 | struct ev_loop |
168 | { |
230 | { |
|
|
231 | ev_tstamp ev_rt_now; |
169 | # define VAR(name,decl) decl; |
232 | #define VAR(name,decl) decl; |
170 | # include "ev_vars.h" |
233 | #include "ev_vars.h" |
171 | }; |
|
|
172 | # undef VAR |
234 | #undef VAR |
|
|
235 | }; |
173 | # include "ev_wrap.h" |
236 | #include "ev_wrap.h" |
|
|
237 | |
|
|
238 | struct ev_loop default_loop_struct; |
|
|
239 | static struct ev_loop *default_loop; |
174 | |
240 | |
175 | #else |
241 | #else |
176 | |
242 | |
|
|
243 | ev_tstamp ev_rt_now; |
177 | # define VAR(name,decl) static decl; |
244 | #define VAR(name,decl) static decl; |
178 | # include "ev_vars.h" |
245 | #include "ev_vars.h" |
179 | # undef VAR |
246 | #undef VAR |
|
|
247 | |
|
|
248 | static int default_loop; |
180 | |
249 | |
181 | #endif |
250 | #endif |
182 | |
251 | |
183 | /*****************************************************************************/ |
252 | /*****************************************************************************/ |
184 | |
253 | |
… | |
… | |
209 | #endif |
278 | #endif |
210 | |
279 | |
211 | return ev_time (); |
280 | return ev_time (); |
212 | } |
281 | } |
213 | |
282 | |
|
|
283 | #if EV_MULTIPLICITY |
214 | ev_tstamp |
284 | ev_tstamp |
215 | ev_now (EV_P) |
285 | ev_now (EV_P) |
216 | { |
286 | { |
217 | return rt_now; |
287 | return ev_rt_now; |
218 | } |
288 | } |
|
|
289 | #endif |
219 | |
290 | |
220 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
291 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
221 | |
292 | |
222 | #define array_needsize(base,cur,cnt,init) \ |
293 | #define array_needsize(type,base,cur,cnt,init) \ |
223 | if (expect_false ((cnt) > cur)) \ |
294 | if (expect_false ((cnt) > cur)) \ |
224 | { \ |
295 | { \ |
225 | int newcnt = cur; \ |
296 | int newcnt = cur; \ |
226 | do \ |
297 | do \ |
227 | { \ |
298 | { \ |
228 | newcnt = array_roundsize (base, newcnt << 1); \ |
299 | newcnt = array_roundsize (type, newcnt << 1); \ |
229 | } \ |
300 | } \ |
230 | while ((cnt) > newcnt); \ |
301 | while ((cnt) > newcnt); \ |
231 | \ |
302 | \ |
232 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
303 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
233 | init (base + cur, newcnt - cur); \ |
304 | init (base + cur, newcnt - cur); \ |
234 | cur = newcnt; \ |
305 | cur = newcnt; \ |
235 | } |
306 | } |
|
|
307 | |
|
|
308 | #define array_slim(type,stem) \ |
|
|
309 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
310 | { \ |
|
|
311 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
312 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
313 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
314 | } |
|
|
315 | |
|
|
316 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
317 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
318 | #define array_free_microshit(stem) \ |
|
|
319 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
320 | |
|
|
321 | #define array_free(stem, idx) \ |
|
|
322 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
236 | |
323 | |
237 | /*****************************************************************************/ |
324 | /*****************************************************************************/ |
238 | |
325 | |
239 | static void |
326 | static void |
240 | anfds_init (ANFD *base, int count) |
327 | anfds_init (ANFD *base, int count) |
… | |
… | |
247 | |
334 | |
248 | ++base; |
335 | ++base; |
249 | } |
336 | } |
250 | } |
337 | } |
251 | |
338 | |
252 | static void |
339 | void |
253 | event (EV_P_ W w, int events) |
340 | ev_feed_event (EV_P_ void *w, int revents) |
254 | { |
341 | { |
|
|
342 | W w_ = (W)w; |
|
|
343 | |
255 | if (w->pending) |
344 | if (w_->pending) |
256 | { |
345 | { |
257 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
346 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
258 | return; |
347 | return; |
259 | } |
348 | } |
260 | |
349 | |
261 | w->pending = ++pendingcnt [ABSPRI (w)]; |
350 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
262 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
351 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
263 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
352 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
264 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
353 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
265 | } |
354 | } |
266 | |
355 | |
267 | static void |
356 | static void |
268 | queue_events (EV_P_ W *events, int eventcnt, int type) |
357 | queue_events (EV_P_ W *events, int eventcnt, int type) |
269 | { |
358 | { |
270 | int i; |
359 | int i; |
271 | |
360 | |
272 | for (i = 0; i < eventcnt; ++i) |
361 | for (i = 0; i < eventcnt; ++i) |
273 | event (EV_A_ events [i], type); |
362 | ev_feed_event (EV_A_ events [i], type); |
274 | } |
363 | } |
275 | |
364 | |
276 | static void |
365 | inline void |
277 | fd_event (EV_P_ int fd, int events) |
366 | fd_event (EV_P_ int fd, int revents) |
278 | { |
367 | { |
279 | ANFD *anfd = anfds + fd; |
368 | ANFD *anfd = anfds + fd; |
280 | struct ev_io *w; |
369 | struct ev_io *w; |
281 | |
370 | |
282 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
371 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
283 | { |
372 | { |
284 | int ev = w->events & events; |
373 | int ev = w->events & revents; |
285 | |
374 | |
286 | if (ev) |
375 | if (ev) |
287 | event (EV_A_ (W)w, ev); |
376 | ev_feed_event (EV_A_ (W)w, ev); |
288 | } |
377 | } |
|
|
378 | } |
|
|
379 | |
|
|
380 | void |
|
|
381 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
382 | { |
|
|
383 | fd_event (EV_A_ fd, revents); |
289 | } |
384 | } |
290 | |
385 | |
291 | /*****************************************************************************/ |
386 | /*****************************************************************************/ |
292 | |
387 | |
293 | static void |
388 | static void |
… | |
… | |
306 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
401 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
307 | events |= w->events; |
402 | events |= w->events; |
308 | |
403 | |
309 | anfd->reify = 0; |
404 | anfd->reify = 0; |
310 | |
405 | |
311 | if (anfd->events != events) |
|
|
312 | { |
|
|
313 | method_modify (EV_A_ fd, anfd->events, events); |
406 | method_modify (EV_A_ fd, anfd->events, events); |
314 | anfd->events = events; |
407 | anfd->events = events; |
315 | } |
|
|
316 | } |
408 | } |
317 | |
409 | |
318 | fdchangecnt = 0; |
410 | fdchangecnt = 0; |
319 | } |
411 | } |
320 | |
412 | |
321 | static void |
413 | static void |
322 | fd_change (EV_P_ int fd) |
414 | fd_change (EV_P_ int fd) |
323 | { |
415 | { |
324 | if (anfds [fd].reify || fdchangecnt < 0) |
416 | if (anfds [fd].reify) |
325 | return; |
417 | return; |
326 | |
418 | |
327 | anfds [fd].reify = 1; |
419 | anfds [fd].reify = 1; |
328 | |
420 | |
329 | ++fdchangecnt; |
421 | ++fdchangecnt; |
330 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
422 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
331 | fdchanges [fdchangecnt - 1] = fd; |
423 | fdchanges [fdchangecnt - 1] = fd; |
332 | } |
424 | } |
333 | |
425 | |
334 | static void |
426 | static void |
335 | fd_kill (EV_P_ int fd) |
427 | fd_kill (EV_P_ int fd) |
… | |
… | |
337 | struct ev_io *w; |
429 | struct ev_io *w; |
338 | |
430 | |
339 | while ((w = (struct ev_io *)anfds [fd].head)) |
431 | while ((w = (struct ev_io *)anfds [fd].head)) |
340 | { |
432 | { |
341 | ev_io_stop (EV_A_ w); |
433 | ev_io_stop (EV_A_ w); |
342 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
434 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
343 | } |
435 | } |
|
|
436 | } |
|
|
437 | |
|
|
438 | static int |
|
|
439 | fd_valid (int fd) |
|
|
440 | { |
|
|
441 | #ifdef WIN32 |
|
|
442 | return !!win32_get_osfhandle (fd); |
|
|
443 | #else |
|
|
444 | return fcntl (fd, F_GETFD) != -1; |
|
|
445 | #endif |
344 | } |
446 | } |
345 | |
447 | |
346 | /* called on EBADF to verify fds */ |
448 | /* called on EBADF to verify fds */ |
347 | static void |
449 | static void |
348 | fd_ebadf (EV_P) |
450 | fd_ebadf (EV_P) |
349 | { |
451 | { |
350 | int fd; |
452 | int fd; |
351 | |
453 | |
352 | for (fd = 0; fd < anfdmax; ++fd) |
454 | for (fd = 0; fd < anfdmax; ++fd) |
353 | if (anfds [fd].events) |
455 | if (anfds [fd].events) |
354 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
456 | if (!fd_valid (fd) == -1 && errno == EBADF) |
355 | fd_kill (EV_A_ fd); |
457 | fd_kill (EV_A_ fd); |
356 | } |
458 | } |
357 | |
459 | |
358 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
460 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
359 | static void |
461 | static void |
… | |
… | |
362 | int fd; |
464 | int fd; |
363 | |
465 | |
364 | for (fd = anfdmax; fd--; ) |
466 | for (fd = anfdmax; fd--; ) |
365 | if (anfds [fd].events) |
467 | if (anfds [fd].events) |
366 | { |
468 | { |
367 | close (fd); |
|
|
368 | fd_kill (EV_A_ fd); |
469 | fd_kill (EV_A_ fd); |
369 | return; |
470 | return; |
370 | } |
471 | } |
371 | } |
472 | } |
372 | |
473 | |
373 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
474 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
374 | static void |
475 | static void |
375 | fd_rearm_all (EV_P) |
476 | fd_rearm_all (EV_P) |
376 | { |
477 | { |
377 | int fd; |
478 | int fd; |
378 | |
479 | |
… | |
… | |
426 | |
527 | |
427 | heap [k] = w; |
528 | heap [k] = w; |
428 | ((W)heap [k])->active = k + 1; |
529 | ((W)heap [k])->active = k + 1; |
429 | } |
530 | } |
430 | |
531 | |
|
|
532 | inline void |
|
|
533 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
|
|
534 | { |
|
|
535 | ev_tstamp old_at = heap [k]->at; |
|
|
536 | heap [k]->at = at; |
|
|
537 | |
|
|
538 | if (old_at < at) |
|
|
539 | downheap (heap, N, k); |
|
|
540 | else |
|
|
541 | upheap (heap, k); |
|
|
542 | } |
|
|
543 | |
431 | /*****************************************************************************/ |
544 | /*****************************************************************************/ |
432 | |
545 | |
433 | typedef struct |
546 | typedef struct |
434 | { |
547 | { |
435 | struct ev_watcher_list *head; |
548 | WL head; |
436 | sig_atomic_t volatile gotsig; |
549 | sig_atomic_t volatile gotsig; |
437 | } ANSIG; |
550 | } ANSIG; |
438 | |
551 | |
439 | static ANSIG *signals; |
552 | static ANSIG *signals; |
440 | static int signalmax; |
553 | static int signalmax; |
… | |
… | |
456 | } |
569 | } |
457 | |
570 | |
458 | static void |
571 | static void |
459 | sighandler (int signum) |
572 | sighandler (int signum) |
460 | { |
573 | { |
|
|
574 | #if WIN32 |
|
|
575 | signal (signum, sighandler); |
|
|
576 | #endif |
|
|
577 | |
461 | signals [signum - 1].gotsig = 1; |
578 | signals [signum - 1].gotsig = 1; |
462 | |
579 | |
463 | if (!gotsig) |
580 | if (!gotsig) |
464 | { |
581 | { |
465 | int old_errno = errno; |
582 | int old_errno = errno; |
466 | gotsig = 1; |
583 | gotsig = 1; |
|
|
584 | #ifdef WIN32 |
|
|
585 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
586 | #else |
467 | write (sigpipe [1], &signum, 1); |
587 | write (sigpipe [1], &signum, 1); |
|
|
588 | #endif |
468 | errno = old_errno; |
589 | errno = old_errno; |
469 | } |
590 | } |
470 | } |
591 | } |
471 | |
592 | |
|
|
593 | void |
|
|
594 | ev_feed_signal_event (EV_P_ int signum) |
|
|
595 | { |
|
|
596 | WL w; |
|
|
597 | |
|
|
598 | #if EV_MULTIPLICITY |
|
|
599 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
600 | #endif |
|
|
601 | |
|
|
602 | --signum; |
|
|
603 | |
|
|
604 | if (signum < 0 || signum >= signalmax) |
|
|
605 | return; |
|
|
606 | |
|
|
607 | signals [signum].gotsig = 0; |
|
|
608 | |
|
|
609 | for (w = signals [signum].head; w; w = w->next) |
|
|
610 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
611 | } |
|
|
612 | |
472 | static void |
613 | static void |
473 | sigcb (EV_P_ struct ev_io *iow, int revents) |
614 | sigcb (EV_P_ struct ev_io *iow, int revents) |
474 | { |
615 | { |
475 | struct ev_watcher_list *w; |
|
|
476 | int signum; |
616 | int signum; |
477 | |
617 | |
|
|
618 | #ifdef WIN32 |
|
|
619 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
620 | #else |
478 | read (sigpipe [0], &revents, 1); |
621 | read (sigpipe [0], &revents, 1); |
|
|
622 | #endif |
479 | gotsig = 0; |
623 | gotsig = 0; |
480 | |
624 | |
481 | for (signum = signalmax; signum--; ) |
625 | for (signum = signalmax; signum--; ) |
482 | if (signals [signum].gotsig) |
626 | if (signals [signum].gotsig) |
483 | { |
627 | ev_feed_signal_event (EV_A_ signum + 1); |
484 | signals [signum].gotsig = 0; |
|
|
485 | |
|
|
486 | for (w = signals [signum].head; w; w = w->next) |
|
|
487 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
488 | } |
|
|
489 | } |
628 | } |
490 | |
629 | |
491 | static void |
630 | static void |
492 | siginit (EV_P) |
631 | siginit (EV_P) |
493 | { |
632 | { |
… | |
… | |
505 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
644 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
506 | } |
645 | } |
507 | |
646 | |
508 | /*****************************************************************************/ |
647 | /*****************************************************************************/ |
509 | |
648 | |
|
|
649 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
650 | |
510 | #ifndef WIN32 |
651 | #ifndef WIN32 |
511 | |
652 | |
512 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
513 | static struct ev_signal childev; |
653 | static struct ev_signal childev; |
514 | |
654 | |
515 | #ifndef WCONTINUED |
655 | #ifndef WCONTINUED |
516 | # define WCONTINUED 0 |
656 | # define WCONTINUED 0 |
517 | #endif |
657 | #endif |
… | |
… | |
522 | struct ev_child *w; |
662 | struct ev_child *w; |
523 | |
663 | |
524 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
664 | 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) |
665 | if (w->pid == pid || !w->pid) |
526 | { |
666 | { |
527 | w->priority = sw->priority; /* need to do it *now* */ |
667 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
528 | w->rpid = pid; |
668 | w->rpid = pid; |
529 | w->rstatus = status; |
669 | w->rstatus = status; |
530 | event (EV_A_ (W)w, EV_CHILD); |
670 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
531 | } |
671 | } |
532 | } |
672 | } |
533 | |
673 | |
534 | static void |
674 | static void |
535 | childcb (EV_P_ struct ev_signal *sw, int revents) |
675 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
537 | int pid, status; |
677 | int pid, status; |
538 | |
678 | |
539 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
679 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
540 | { |
680 | { |
541 | /* make sure we are called again until all childs have been reaped */ |
681 | /* make sure we are called again until all childs have been reaped */ |
542 | event (EV_A_ (W)sw, EV_SIGNAL); |
682 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
543 | |
683 | |
544 | child_reap (EV_A_ sw, pid, pid, status); |
684 | child_reap (EV_A_ sw, pid, pid, status); |
545 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
685 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
546 | } |
686 | } |
547 | } |
687 | } |
… | |
… | |
604 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
744 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
605 | have_monotonic = 1; |
745 | have_monotonic = 1; |
606 | } |
746 | } |
607 | #endif |
747 | #endif |
608 | |
748 | |
609 | rt_now = ev_time (); |
749 | ev_rt_now = ev_time (); |
610 | mn_now = get_clock (); |
750 | mn_now = get_clock (); |
611 | now_floor = mn_now; |
751 | now_floor = mn_now; |
612 | rtmn_diff = rt_now - mn_now; |
752 | rtmn_diff = ev_rt_now - mn_now; |
613 | |
753 | |
614 | if (methods == EVMETHOD_AUTO) |
754 | if (methods == EVMETHOD_AUTO) |
615 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
755 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
616 | methods = atoi (getenv ("LIBEV_METHODS")); |
756 | methods = atoi (getenv ("LIBEV_METHODS")); |
617 | else |
757 | else |
… | |
… | |
631 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
771 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
632 | #endif |
772 | #endif |
633 | #if EV_USE_SELECT |
773 | #if EV_USE_SELECT |
634 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
774 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
635 | #endif |
775 | #endif |
|
|
776 | |
|
|
777 | ev_init (&sigev, sigcb); |
|
|
778 | ev_set_priority (&sigev, EV_MAXPRI); |
636 | } |
779 | } |
637 | } |
780 | } |
638 | |
781 | |
639 | void |
782 | void |
640 | loop_destroy (EV_P) |
783 | loop_destroy (EV_P) |
641 | { |
784 | { |
|
|
785 | int i; |
|
|
786 | |
642 | #if EV_USE_WIN32 |
787 | #if EV_USE_WIN32 |
643 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
788 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
644 | #endif |
789 | #endif |
645 | #if EV_USE_KQUEUE |
790 | #if EV_USE_KQUEUE |
646 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
791 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
653 | #endif |
798 | #endif |
654 | #if EV_USE_SELECT |
799 | #if EV_USE_SELECT |
655 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
800 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
656 | #endif |
801 | #endif |
657 | |
802 | |
|
|
803 | for (i = NUMPRI; i--; ) |
|
|
804 | array_free (pending, [i]); |
|
|
805 | |
|
|
806 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
807 | array_free_microshit (fdchange); |
|
|
808 | array_free_microshit (timer); |
|
|
809 | array_free_microshit (periodic); |
|
|
810 | array_free_microshit (idle); |
|
|
811 | array_free_microshit (prepare); |
|
|
812 | array_free_microshit (check); |
|
|
813 | |
658 | method = 0; |
814 | method = 0; |
659 | /*TODO*/ |
|
|
660 | } |
815 | } |
661 | |
816 | |
662 | void |
817 | static void |
663 | loop_fork (EV_P) |
818 | loop_fork (EV_P) |
664 | { |
819 | { |
665 | /*TODO*/ |
|
|
666 | #if EV_USE_EPOLL |
820 | #if EV_USE_EPOLL |
667 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
821 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
668 | #endif |
822 | #endif |
669 | #if EV_USE_KQUEUE |
823 | #if EV_USE_KQUEUE |
670 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
824 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
671 | #endif |
825 | #endif |
|
|
826 | |
|
|
827 | if (ev_is_active (&sigev)) |
|
|
828 | { |
|
|
829 | /* default loop */ |
|
|
830 | |
|
|
831 | ev_ref (EV_A); |
|
|
832 | ev_io_stop (EV_A_ &sigev); |
|
|
833 | close (sigpipe [0]); |
|
|
834 | close (sigpipe [1]); |
|
|
835 | |
|
|
836 | while (pipe (sigpipe)) |
|
|
837 | syserr ("(libev) error creating pipe"); |
|
|
838 | |
|
|
839 | siginit (EV_A); |
|
|
840 | } |
|
|
841 | |
|
|
842 | postfork = 0; |
672 | } |
843 | } |
673 | |
844 | |
674 | #if EV_MULTIPLICITY |
845 | #if EV_MULTIPLICITY |
675 | struct ev_loop * |
846 | struct ev_loop * |
676 | ev_loop_new (int methods) |
847 | ev_loop_new (int methods) |
677 | { |
848 | { |
678 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
849 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
850 | |
|
|
851 | memset (loop, 0, sizeof (struct ev_loop)); |
679 | |
852 | |
680 | loop_init (EV_A_ methods); |
853 | loop_init (EV_A_ methods); |
681 | |
854 | |
682 | if (ev_method (EV_A)) |
855 | if (ev_method (EV_A)) |
683 | return loop; |
856 | return loop; |
… | |
… | |
687 | |
860 | |
688 | void |
861 | void |
689 | ev_loop_destroy (EV_P) |
862 | ev_loop_destroy (EV_P) |
690 | { |
863 | { |
691 | loop_destroy (EV_A); |
864 | loop_destroy (EV_A); |
692 | free (loop); |
865 | ev_free (loop); |
693 | } |
866 | } |
694 | |
867 | |
695 | void |
868 | void |
696 | ev_loop_fork (EV_P) |
869 | ev_loop_fork (EV_P) |
697 | { |
870 | { |
698 | loop_fork (EV_A); |
871 | postfork = 1; |
699 | } |
872 | } |
700 | |
873 | |
701 | #endif |
874 | #endif |
702 | |
875 | |
703 | #if EV_MULTIPLICITY |
876 | #if EV_MULTIPLICITY |
704 | struct ev_loop default_loop_struct; |
|
|
705 | static struct ev_loop *default_loop; |
|
|
706 | |
|
|
707 | struct ev_loop * |
877 | struct ev_loop * |
708 | #else |
878 | #else |
709 | static int default_loop; |
|
|
710 | |
|
|
711 | int |
879 | int |
712 | #endif |
880 | #endif |
713 | ev_default_loop (int methods) |
881 | ev_default_loop (int methods) |
714 | { |
882 | { |
715 | if (sigpipe [0] == sigpipe [1]) |
883 | if (sigpipe [0] == sigpipe [1]) |
… | |
… | |
726 | |
894 | |
727 | loop_init (EV_A_ methods); |
895 | loop_init (EV_A_ methods); |
728 | |
896 | |
729 | if (ev_method (EV_A)) |
897 | if (ev_method (EV_A)) |
730 | { |
898 | { |
731 | ev_watcher_init (&sigev, sigcb); |
|
|
732 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
733 | siginit (EV_A); |
899 | siginit (EV_A); |
734 | |
900 | |
735 | #ifndef WIN32 |
901 | #ifndef WIN32 |
736 | ev_signal_init (&childev, childcb, SIGCHLD); |
902 | ev_signal_init (&childev, childcb, SIGCHLD); |
737 | ev_set_priority (&childev, EV_MAXPRI); |
903 | ev_set_priority (&childev, EV_MAXPRI); |
… | |
… | |
751 | { |
917 | { |
752 | #if EV_MULTIPLICITY |
918 | #if EV_MULTIPLICITY |
753 | struct ev_loop *loop = default_loop; |
919 | struct ev_loop *loop = default_loop; |
754 | #endif |
920 | #endif |
755 | |
921 | |
|
|
922 | #ifndef WIN32 |
756 | ev_ref (EV_A); /* child watcher */ |
923 | ev_ref (EV_A); /* child watcher */ |
757 | ev_signal_stop (EV_A_ &childev); |
924 | ev_signal_stop (EV_A_ &childev); |
|
|
925 | #endif |
758 | |
926 | |
759 | ev_ref (EV_A); /* signal watcher */ |
927 | ev_ref (EV_A); /* signal watcher */ |
760 | ev_io_stop (EV_A_ &sigev); |
928 | ev_io_stop (EV_A_ &sigev); |
761 | |
929 | |
762 | close (sigpipe [0]); sigpipe [0] = 0; |
930 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
770 | { |
938 | { |
771 | #if EV_MULTIPLICITY |
939 | #if EV_MULTIPLICITY |
772 | struct ev_loop *loop = default_loop; |
940 | struct ev_loop *loop = default_loop; |
773 | #endif |
941 | #endif |
774 | |
942 | |
775 | loop_fork (EV_A); |
943 | if (method) |
776 | |
944 | postfork = 1; |
777 | ev_io_stop (EV_A_ &sigev); |
|
|
778 | close (sigpipe [0]); |
|
|
779 | close (sigpipe [1]); |
|
|
780 | pipe (sigpipe); |
|
|
781 | |
|
|
782 | ev_ref (EV_A); /* signal watcher */ |
|
|
783 | siginit (EV_A); |
|
|
784 | } |
945 | } |
785 | |
946 | |
786 | /*****************************************************************************/ |
947 | /*****************************************************************************/ |
|
|
948 | |
|
|
949 | static int |
|
|
950 | any_pending (EV_P) |
|
|
951 | { |
|
|
952 | int pri; |
|
|
953 | |
|
|
954 | for (pri = NUMPRI; pri--; ) |
|
|
955 | if (pendingcnt [pri]) |
|
|
956 | return 1; |
|
|
957 | |
|
|
958 | return 0; |
|
|
959 | } |
787 | |
960 | |
788 | static void |
961 | static void |
789 | call_pending (EV_P) |
962 | call_pending (EV_P) |
790 | { |
963 | { |
791 | int pri; |
964 | int pri; |
… | |
… | |
796 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
969 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
797 | |
970 | |
798 | if (p->w) |
971 | if (p->w) |
799 | { |
972 | { |
800 | p->w->pending = 0; |
973 | p->w->pending = 0; |
801 | p->w->cb (EV_A_ p->w, p->events); |
974 | EV_CB_INVOKE (p->w, p->events); |
802 | } |
975 | } |
803 | } |
976 | } |
804 | } |
977 | } |
805 | |
978 | |
806 | static void |
979 | static void |
807 | timers_reify (EV_P) |
980 | timers_reify (EV_P) |
808 | { |
981 | { |
809 | while (timercnt && timers [0]->at <= mn_now) |
982 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
810 | { |
983 | { |
811 | struct ev_timer *w = timers [0]; |
984 | struct ev_timer *w = timers [0]; |
812 | |
985 | |
813 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
986 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
814 | |
987 | |
815 | /* first reschedule or stop timer */ |
988 | /* first reschedule or stop timer */ |
816 | if (w->repeat) |
989 | if (w->repeat) |
817 | { |
990 | { |
818 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
991 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
819 | w->at = mn_now + w->repeat; |
992 | ((WT)w)->at = mn_now + w->repeat; |
820 | downheap ((WT *)timers, timercnt, 0); |
993 | downheap ((WT *)timers, timercnt, 0); |
821 | } |
994 | } |
822 | else |
995 | else |
823 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
996 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
824 | |
997 | |
825 | event (EV_A_ (W)w, EV_TIMEOUT); |
998 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
826 | } |
999 | } |
827 | } |
1000 | } |
828 | |
1001 | |
829 | static void |
1002 | static void |
830 | periodics_reify (EV_P) |
1003 | periodics_reify (EV_P) |
831 | { |
1004 | { |
832 | while (periodiccnt && periodics [0]->at <= rt_now) |
1005 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
833 | { |
1006 | { |
834 | struct ev_periodic *w = periodics [0]; |
1007 | struct ev_periodic *w = periodics [0]; |
835 | |
1008 | |
836 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1009 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
837 | |
1010 | |
838 | /* first reschedule or stop timer */ |
1011 | /* first reschedule or stop timer */ |
839 | if (w->interval) |
1012 | if (w->reschedule_cb) |
840 | { |
1013 | { |
|
|
1014 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1015 | |
|
|
1016 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1017 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1018 | } |
|
|
1019 | else if (w->interval) |
|
|
1020 | { |
841 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1021 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
842 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1022 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
843 | downheap ((WT *)periodics, periodiccnt, 0); |
1023 | downheap ((WT *)periodics, periodiccnt, 0); |
844 | } |
1024 | } |
845 | else |
1025 | else |
846 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1026 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
847 | |
1027 | |
848 | event (EV_A_ (W)w, EV_PERIODIC); |
1028 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
849 | } |
1029 | } |
850 | } |
1030 | } |
851 | |
1031 | |
852 | static void |
1032 | static void |
853 | periodics_reschedule (EV_P) |
1033 | periodics_reschedule (EV_P) |
… | |
… | |
857 | /* adjust periodics after time jump */ |
1037 | /* adjust periodics after time jump */ |
858 | for (i = 0; i < periodiccnt; ++i) |
1038 | for (i = 0; i < periodiccnt; ++i) |
859 | { |
1039 | { |
860 | struct ev_periodic *w = periodics [i]; |
1040 | struct ev_periodic *w = periodics [i]; |
861 | |
1041 | |
|
|
1042 | if (w->reschedule_cb) |
|
|
1043 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
862 | if (w->interval) |
1044 | else if (w->interval) |
863 | { |
|
|
864 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1045 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
865 | |
|
|
866 | if (fabs (diff) >= 1e-4) |
|
|
867 | { |
|
|
868 | ev_periodic_stop (EV_A_ w); |
|
|
869 | ev_periodic_start (EV_A_ w); |
|
|
870 | |
|
|
871 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
872 | } |
|
|
873 | } |
|
|
874 | } |
1046 | } |
|
|
1047 | |
|
|
1048 | /* now rebuild the heap */ |
|
|
1049 | for (i = periodiccnt >> 1; i--; ) |
|
|
1050 | downheap ((WT *)periodics, periodiccnt, i); |
875 | } |
1051 | } |
876 | |
1052 | |
877 | inline int |
1053 | inline int |
878 | time_update_monotonic (EV_P) |
1054 | time_update_monotonic (EV_P) |
879 | { |
1055 | { |
880 | mn_now = get_clock (); |
1056 | mn_now = get_clock (); |
881 | |
1057 | |
882 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1058 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
883 | { |
1059 | { |
884 | rt_now = rtmn_diff + mn_now; |
1060 | ev_rt_now = rtmn_diff + mn_now; |
885 | return 0; |
1061 | return 0; |
886 | } |
1062 | } |
887 | else |
1063 | else |
888 | { |
1064 | { |
889 | now_floor = mn_now; |
1065 | now_floor = mn_now; |
890 | rt_now = ev_time (); |
1066 | ev_rt_now = ev_time (); |
891 | return 1; |
1067 | return 1; |
892 | } |
1068 | } |
893 | } |
1069 | } |
894 | |
1070 | |
895 | static void |
1071 | static void |
… | |
… | |
904 | { |
1080 | { |
905 | ev_tstamp odiff = rtmn_diff; |
1081 | ev_tstamp odiff = rtmn_diff; |
906 | |
1082 | |
907 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1083 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
908 | { |
1084 | { |
909 | rtmn_diff = rt_now - mn_now; |
1085 | rtmn_diff = ev_rt_now - mn_now; |
910 | |
1086 | |
911 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1087 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
912 | return; /* all is well */ |
1088 | return; /* all is well */ |
913 | |
1089 | |
914 | rt_now = ev_time (); |
1090 | ev_rt_now = ev_time (); |
915 | mn_now = get_clock (); |
1091 | mn_now = get_clock (); |
916 | now_floor = mn_now; |
1092 | now_floor = mn_now; |
917 | } |
1093 | } |
918 | |
1094 | |
919 | periodics_reschedule (EV_A); |
1095 | periodics_reschedule (EV_A); |
… | |
… | |
922 | } |
1098 | } |
923 | } |
1099 | } |
924 | else |
1100 | else |
925 | #endif |
1101 | #endif |
926 | { |
1102 | { |
927 | rt_now = ev_time (); |
1103 | ev_rt_now = ev_time (); |
928 | |
1104 | |
929 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1105 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
930 | { |
1106 | { |
931 | periodics_reschedule (EV_A); |
1107 | periodics_reschedule (EV_A); |
932 | |
1108 | |
933 | /* adjust timers. this is easy, as the offset is the same for all */ |
1109 | /* adjust timers. this is easy, as the offset is the same for all */ |
934 | for (i = 0; i < timercnt; ++i) |
1110 | for (i = 0; i < timercnt; ++i) |
935 | timers [i]->at += rt_now - mn_now; |
1111 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
936 | } |
1112 | } |
937 | |
1113 | |
938 | mn_now = rt_now; |
1114 | mn_now = ev_rt_now; |
939 | } |
1115 | } |
940 | } |
1116 | } |
941 | |
1117 | |
942 | void |
1118 | void |
943 | ev_ref (EV_P) |
1119 | ev_ref (EV_P) |
… | |
… | |
966 | { |
1142 | { |
967 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1143 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
968 | call_pending (EV_A); |
1144 | call_pending (EV_A); |
969 | } |
1145 | } |
970 | |
1146 | |
|
|
1147 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1148 | if (expect_false (postfork)) |
|
|
1149 | loop_fork (EV_A); |
|
|
1150 | |
971 | /* update fd-related kernel structures */ |
1151 | /* update fd-related kernel structures */ |
972 | fd_reify (EV_A); |
1152 | fd_reify (EV_A); |
973 | |
1153 | |
974 | /* calculate blocking time */ |
1154 | /* calculate blocking time */ |
975 | |
1155 | |
976 | /* we only need this for !monotonic clockor timers, but as we basically |
1156 | /* we only need this for !monotonic clock or timers, but as we basically |
977 | always have timers, we just calculate it always */ |
1157 | always have timers, we just calculate it always */ |
978 | #if EV_USE_MONOTONIC |
1158 | #if EV_USE_MONOTONIC |
979 | if (expect_true (have_monotonic)) |
1159 | if (expect_true (have_monotonic)) |
980 | time_update_monotonic (EV_A); |
1160 | time_update_monotonic (EV_A); |
981 | else |
1161 | else |
982 | #endif |
1162 | #endif |
983 | { |
1163 | { |
984 | rt_now = ev_time (); |
1164 | ev_rt_now = ev_time (); |
985 | mn_now = rt_now; |
1165 | mn_now = ev_rt_now; |
986 | } |
1166 | } |
987 | |
1167 | |
988 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1168 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
989 | block = 0.; |
1169 | block = 0.; |
990 | else |
1170 | else |
991 | { |
1171 | { |
992 | block = MAX_BLOCKTIME; |
1172 | block = MAX_BLOCKTIME; |
993 | |
1173 | |
994 | if (timercnt) |
1174 | if (timercnt) |
995 | { |
1175 | { |
996 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1176 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
997 | if (block > to) block = to; |
1177 | if (block > to) block = to; |
998 | } |
1178 | } |
999 | |
1179 | |
1000 | if (periodiccnt) |
1180 | if (periodiccnt) |
1001 | { |
1181 | { |
1002 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1182 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1003 | if (block > to) block = to; |
1183 | if (block > to) block = to; |
1004 | } |
1184 | } |
1005 | |
1185 | |
1006 | if (block < 0.) block = 0.; |
1186 | if (block < 0.) block = 0.; |
1007 | } |
1187 | } |
1008 | |
1188 | |
1009 | method_poll (EV_A_ block); |
1189 | method_poll (EV_A_ block); |
1010 | |
1190 | |
1011 | /* update rt_now, do magic */ |
1191 | /* update ev_rt_now, do magic */ |
1012 | time_update (EV_A); |
1192 | time_update (EV_A); |
1013 | |
1193 | |
1014 | /* queue pending timers and reschedule them */ |
1194 | /* queue pending timers and reschedule them */ |
1015 | timers_reify (EV_A); /* relative timers called last */ |
1195 | timers_reify (EV_A); /* relative timers called last */ |
1016 | periodics_reify (EV_A); /* absolute timers called first */ |
1196 | periodics_reify (EV_A); /* absolute timers called first */ |
1017 | |
1197 | |
1018 | /* queue idle watchers unless io or timers are pending */ |
1198 | /* queue idle watchers unless io or timers are pending */ |
1019 | if (!pendingcnt) |
1199 | if (idlecnt && !any_pending (EV_A)) |
1020 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1200 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1021 | |
1201 | |
1022 | /* queue check watchers, to be executed first */ |
1202 | /* queue check watchers, to be executed first */ |
1023 | if (checkcnt) |
1203 | if (checkcnt) |
1024 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1204 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
… | |
… | |
1099 | return; |
1279 | return; |
1100 | |
1280 | |
1101 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1281 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1102 | |
1282 | |
1103 | ev_start (EV_A_ (W)w, 1); |
1283 | ev_start (EV_A_ (W)w, 1); |
1104 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1284 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1105 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1285 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1106 | |
1286 | |
1107 | fd_change (EV_A_ fd); |
1287 | fd_change (EV_A_ fd); |
1108 | } |
1288 | } |
1109 | |
1289 | |
… | |
… | |
1112 | { |
1292 | { |
1113 | ev_clear_pending (EV_A_ (W)w); |
1293 | ev_clear_pending (EV_A_ (W)w); |
1114 | if (!ev_is_active (w)) |
1294 | if (!ev_is_active (w)) |
1115 | return; |
1295 | return; |
1116 | |
1296 | |
|
|
1297 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1298 | |
1117 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1299 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1118 | ev_stop (EV_A_ (W)w); |
1300 | ev_stop (EV_A_ (W)w); |
1119 | |
1301 | |
1120 | fd_change (EV_A_ w->fd); |
1302 | fd_change (EV_A_ w->fd); |
1121 | } |
1303 | } |
… | |
… | |
1124 | ev_timer_start (EV_P_ struct ev_timer *w) |
1306 | ev_timer_start (EV_P_ struct ev_timer *w) |
1125 | { |
1307 | { |
1126 | if (ev_is_active (w)) |
1308 | if (ev_is_active (w)) |
1127 | return; |
1309 | return; |
1128 | |
1310 | |
1129 | w->at += mn_now; |
1311 | ((WT)w)->at += mn_now; |
1130 | |
1312 | |
1131 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1313 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1132 | |
1314 | |
1133 | ev_start (EV_A_ (W)w, ++timercnt); |
1315 | ev_start (EV_A_ (W)w, ++timercnt); |
1134 | array_needsize (timers, timermax, timercnt, ); |
1316 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1135 | timers [timercnt - 1] = w; |
1317 | timers [timercnt - 1] = w; |
1136 | upheap ((WT *)timers, timercnt - 1); |
1318 | upheap ((WT *)timers, timercnt - 1); |
1137 | |
1319 | |
1138 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1320 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1139 | } |
1321 | } |
… | |
… | |
1151 | { |
1333 | { |
1152 | timers [((W)w)->active - 1] = timers [timercnt]; |
1334 | timers [((W)w)->active - 1] = timers [timercnt]; |
1153 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1335 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1154 | } |
1336 | } |
1155 | |
1337 | |
1156 | w->at = w->repeat; |
1338 | ((WT)w)->at = w->repeat; |
1157 | |
1339 | |
1158 | ev_stop (EV_A_ (W)w); |
1340 | ev_stop (EV_A_ (W)w); |
1159 | } |
1341 | } |
1160 | |
1342 | |
1161 | void |
1343 | void |
1162 | ev_timer_again (EV_P_ struct ev_timer *w) |
1344 | ev_timer_again (EV_P_ struct ev_timer *w) |
1163 | { |
1345 | { |
1164 | if (ev_is_active (w)) |
1346 | if (ev_is_active (w)) |
1165 | { |
1347 | { |
1166 | if (w->repeat) |
1348 | if (w->repeat) |
1167 | { |
|
|
1168 | w->at = mn_now + w->repeat; |
|
|
1169 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1349 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
1170 | } |
|
|
1171 | else |
1350 | else |
1172 | ev_timer_stop (EV_A_ w); |
1351 | ev_timer_stop (EV_A_ w); |
1173 | } |
1352 | } |
1174 | else if (w->repeat) |
1353 | else if (w->repeat) |
1175 | ev_timer_start (EV_A_ w); |
1354 | ev_timer_start (EV_A_ w); |
… | |
… | |
1179 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1358 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1180 | { |
1359 | { |
1181 | if (ev_is_active (w)) |
1360 | if (ev_is_active (w)) |
1182 | return; |
1361 | return; |
1183 | |
1362 | |
|
|
1363 | if (w->reschedule_cb) |
|
|
1364 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1365 | else if (w->interval) |
|
|
1366 | { |
1184 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1367 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1185 | |
|
|
1186 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1368 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1187 | if (w->interval) |
|
|
1188 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1369 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1370 | } |
1189 | |
1371 | |
1190 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1372 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1191 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1373 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1192 | periodics [periodiccnt - 1] = w; |
1374 | periodics [periodiccnt - 1] = w; |
1193 | upheap ((WT *)periodics, periodiccnt - 1); |
1375 | upheap ((WT *)periodics, periodiccnt - 1); |
1194 | |
1376 | |
1195 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1377 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1196 | } |
1378 | } |
… | |
… | |
1212 | |
1394 | |
1213 | ev_stop (EV_A_ (W)w); |
1395 | ev_stop (EV_A_ (W)w); |
1214 | } |
1396 | } |
1215 | |
1397 | |
1216 | void |
1398 | void |
|
|
1399 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1400 | { |
|
|
1401 | /* TODO: use adjustheap and recalculation */ |
|
|
1402 | ev_periodic_stop (EV_A_ w); |
|
|
1403 | ev_periodic_start (EV_A_ w); |
|
|
1404 | } |
|
|
1405 | |
|
|
1406 | void |
1217 | ev_idle_start (EV_P_ struct ev_idle *w) |
1407 | ev_idle_start (EV_P_ struct ev_idle *w) |
1218 | { |
1408 | { |
1219 | if (ev_is_active (w)) |
1409 | if (ev_is_active (w)) |
1220 | return; |
1410 | return; |
1221 | |
1411 | |
1222 | ev_start (EV_A_ (W)w, ++idlecnt); |
1412 | ev_start (EV_A_ (W)w, ++idlecnt); |
1223 | array_needsize (idles, idlemax, idlecnt, ); |
1413 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
1224 | idles [idlecnt - 1] = w; |
1414 | idles [idlecnt - 1] = w; |
1225 | } |
1415 | } |
1226 | |
1416 | |
1227 | void |
1417 | void |
1228 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1418 | ev_idle_stop (EV_P_ struct ev_idle *w) |
… | |
… | |
1240 | { |
1430 | { |
1241 | if (ev_is_active (w)) |
1431 | if (ev_is_active (w)) |
1242 | return; |
1432 | return; |
1243 | |
1433 | |
1244 | ev_start (EV_A_ (W)w, ++preparecnt); |
1434 | ev_start (EV_A_ (W)w, ++preparecnt); |
1245 | array_needsize (prepares, preparemax, preparecnt, ); |
1435 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
1246 | prepares [preparecnt - 1] = w; |
1436 | prepares [preparecnt - 1] = w; |
1247 | } |
1437 | } |
1248 | |
1438 | |
1249 | void |
1439 | void |
1250 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1440 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
… | |
… | |
1262 | { |
1452 | { |
1263 | if (ev_is_active (w)) |
1453 | if (ev_is_active (w)) |
1264 | return; |
1454 | return; |
1265 | |
1455 | |
1266 | ev_start (EV_A_ (W)w, ++checkcnt); |
1456 | ev_start (EV_A_ (W)w, ++checkcnt); |
1267 | array_needsize (checks, checkmax, checkcnt, ); |
1457 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
1268 | checks [checkcnt - 1] = w; |
1458 | checks [checkcnt - 1] = w; |
1269 | } |
1459 | } |
1270 | |
1460 | |
1271 | void |
1461 | void |
1272 | ev_check_stop (EV_P_ struct ev_check *w) |
1462 | ev_check_stop (EV_P_ struct ev_check *w) |
… | |
… | |
1293 | return; |
1483 | return; |
1294 | |
1484 | |
1295 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1485 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1296 | |
1486 | |
1297 | ev_start (EV_A_ (W)w, 1); |
1487 | ev_start (EV_A_ (W)w, 1); |
1298 | array_needsize (signals, signalmax, w->signum, signals_init); |
1488 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1299 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1489 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1300 | |
1490 | |
1301 | if (!w->next) |
1491 | if (!((WL)w)->next) |
1302 | { |
1492 | { |
|
|
1493 | #if WIN32 |
|
|
1494 | signal (w->signum, sighandler); |
|
|
1495 | #else |
1303 | struct sigaction sa; |
1496 | struct sigaction sa; |
1304 | sa.sa_handler = sighandler; |
1497 | sa.sa_handler = sighandler; |
1305 | sigfillset (&sa.sa_mask); |
1498 | sigfillset (&sa.sa_mask); |
1306 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1499 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1307 | sigaction (w->signum, &sa, 0); |
1500 | sigaction (w->signum, &sa, 0); |
|
|
1501 | #endif |
1308 | } |
1502 | } |
1309 | } |
1503 | } |
1310 | |
1504 | |
1311 | void |
1505 | void |
1312 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1506 | ev_signal_stop (EV_P_ struct ev_signal *w) |
… | |
… | |
1362 | void (*cb)(int revents, void *arg) = once->cb; |
1556 | void (*cb)(int revents, void *arg) = once->cb; |
1363 | void *arg = once->arg; |
1557 | void *arg = once->arg; |
1364 | |
1558 | |
1365 | ev_io_stop (EV_A_ &once->io); |
1559 | ev_io_stop (EV_A_ &once->io); |
1366 | ev_timer_stop (EV_A_ &once->to); |
1560 | ev_timer_stop (EV_A_ &once->to); |
1367 | free (once); |
1561 | ev_free (once); |
1368 | |
1562 | |
1369 | cb (revents, arg); |
1563 | cb (revents, arg); |
1370 | } |
1564 | } |
1371 | |
1565 | |
1372 | static void |
1566 | static void |
… | |
… | |
1382 | } |
1576 | } |
1383 | |
1577 | |
1384 | void |
1578 | void |
1385 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1579 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1386 | { |
1580 | { |
1387 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1581 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1388 | |
1582 | |
1389 | if (!once) |
1583 | if (!once) |
1390 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1584 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1391 | else |
1585 | else |
1392 | { |
1586 | { |
1393 | once->cb = cb; |
1587 | once->cb = cb; |
1394 | once->arg = arg; |
1588 | once->arg = arg; |
1395 | |
1589 | |
1396 | ev_watcher_init (&once->io, once_cb_io); |
1590 | ev_init (&once->io, once_cb_io); |
1397 | if (fd >= 0) |
1591 | if (fd >= 0) |
1398 | { |
1592 | { |
1399 | ev_io_set (&once->io, fd, events); |
1593 | ev_io_set (&once->io, fd, events); |
1400 | ev_io_start (EV_A_ &once->io); |
1594 | ev_io_start (EV_A_ &once->io); |
1401 | } |
1595 | } |
1402 | |
1596 | |
1403 | ev_watcher_init (&once->to, once_cb_to); |
1597 | ev_init (&once->to, once_cb_to); |
1404 | if (timeout >= 0.) |
1598 | if (timeout >= 0.) |
1405 | { |
1599 | { |
1406 | ev_timer_set (&once->to, timeout, 0.); |
1600 | ev_timer_set (&once->to, timeout, 0.); |
1407 | ev_timer_start (EV_A_ &once->to); |
1601 | ev_timer_start (EV_A_ &once->to); |
1408 | } |
1602 | } |
1409 | } |
1603 | } |
1410 | } |
1604 | } |
1411 | |
1605 | |
|
|
1606 | #ifdef __cplusplus |
|
|
1607 | } |
|
|
1608 | #endif |
|
|
1609 | |