… | |
… | |
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 | #ifdef WIN32 |
151 | /* note: the comment below could not be substantiated, but what would I care */ |
167 | # include "ev_win32.c" |
152 | /* MSDN says this is required to handle SIGFPE */ |
|
|
153 | volatile double SIGFPE_REQ = 0.0f; |
|
|
154 | #endif |
168 | #endif |
155 | |
169 | |
156 | /*****************************************************************************/ |
170 | /*****************************************************************************/ |
157 | |
171 | |
|
|
172 | static void (*syserr_cb)(const char *msg); |
|
|
173 | |
|
|
174 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
175 | { |
|
|
176 | syserr_cb = cb; |
|
|
177 | } |
|
|
178 | |
|
|
179 | static void |
|
|
180 | syserr (const char *msg) |
|
|
181 | { |
|
|
182 | if (!msg) |
|
|
183 | msg = "(libev) system error"; |
|
|
184 | |
|
|
185 | if (syserr_cb) |
|
|
186 | syserr_cb (msg); |
|
|
187 | else |
|
|
188 | { |
|
|
189 | perror (msg); |
|
|
190 | abort (); |
|
|
191 | } |
|
|
192 | } |
|
|
193 | |
|
|
194 | static void *(*alloc)(void *ptr, long size); |
|
|
195 | |
|
|
196 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
197 | { |
|
|
198 | alloc = cb; |
|
|
199 | } |
|
|
200 | |
|
|
201 | static void * |
|
|
202 | ev_realloc (void *ptr, long size) |
|
|
203 | { |
|
|
204 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
205 | |
|
|
206 | if (!ptr && size) |
|
|
207 | { |
|
|
208 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
209 | abort (); |
|
|
210 | } |
|
|
211 | |
|
|
212 | return ptr; |
|
|
213 | } |
|
|
214 | |
|
|
215 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
216 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
217 | |
|
|
218 | /*****************************************************************************/ |
|
|
219 | |
158 | typedef struct |
220 | typedef struct |
159 | { |
221 | { |
160 | struct ev_watcher_list *head; |
222 | WL head; |
161 | unsigned char events; |
223 | unsigned char events; |
162 | unsigned char reify; |
224 | unsigned char reify; |
163 | } ANFD; |
225 | } ANFD; |
164 | |
226 | |
165 | typedef struct |
227 | typedef struct |
… | |
… | |
168 | int events; |
230 | int events; |
169 | } ANPENDING; |
231 | } ANPENDING; |
170 | |
232 | |
171 | #if EV_MULTIPLICITY |
233 | #if EV_MULTIPLICITY |
172 | |
234 | |
173 | struct ev_loop |
235 | struct ev_loop |
174 | { |
236 | { |
|
|
237 | ev_tstamp ev_rt_now; |
|
|
238 | #define ev_rt_now ((loop)->ev_rt_now) |
175 | # define VAR(name,decl) decl; |
239 | #define VAR(name,decl) decl; |
176 | # include "ev_vars.h" |
240 | #include "ev_vars.h" |
177 | }; |
|
|
178 | # undef VAR |
241 | #undef VAR |
|
|
242 | }; |
179 | # include "ev_wrap.h" |
243 | #include "ev_wrap.h" |
|
|
244 | |
|
|
245 | struct ev_loop default_loop_struct; |
|
|
246 | static struct ev_loop *default_loop; |
180 | |
247 | |
181 | #else |
248 | #else |
182 | |
249 | |
|
|
250 | ev_tstamp ev_rt_now; |
183 | # define VAR(name,decl) static decl; |
251 | #define VAR(name,decl) static decl; |
184 | # include "ev_vars.h" |
252 | #include "ev_vars.h" |
185 | # undef VAR |
253 | #undef VAR |
|
|
254 | |
|
|
255 | static int default_loop; |
186 | |
256 | |
187 | #endif |
257 | #endif |
188 | |
258 | |
189 | /*****************************************************************************/ |
259 | /*****************************************************************************/ |
190 | |
260 | |
191 | inline ev_tstamp |
261 | ev_tstamp |
192 | ev_time (void) |
262 | ev_time (void) |
193 | { |
263 | { |
194 | #if EV_USE_REALTIME |
264 | #if EV_USE_REALTIME |
195 | struct timespec ts; |
265 | struct timespec ts; |
196 | clock_gettime (CLOCK_REALTIME, &ts); |
266 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
215 | #endif |
285 | #endif |
216 | |
286 | |
217 | return ev_time (); |
287 | return ev_time (); |
218 | } |
288 | } |
219 | |
289 | |
|
|
290 | #if EV_MULTIPLICITY |
220 | ev_tstamp |
291 | ev_tstamp |
221 | ev_now (EV_P) |
292 | ev_now (EV_P) |
222 | { |
293 | { |
223 | return rt_now; |
294 | return ev_rt_now; |
224 | } |
295 | } |
|
|
296 | #endif |
225 | |
297 | |
226 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
298 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
227 | |
299 | |
228 | #define array_needsize(base,cur,cnt,init) \ |
300 | #define array_needsize(type,base,cur,cnt,init) \ |
229 | if (expect_false ((cnt) > cur)) \ |
301 | if (expect_false ((cnt) > cur)) \ |
230 | { \ |
302 | { \ |
231 | int newcnt = cur; \ |
303 | int newcnt = cur; \ |
232 | do \ |
304 | do \ |
233 | { \ |
305 | { \ |
234 | newcnt = array_roundsize (base, newcnt << 1); \ |
306 | newcnt = array_roundsize (type, newcnt << 1); \ |
235 | } \ |
307 | } \ |
236 | while ((cnt) > newcnt); \ |
308 | while ((cnt) > newcnt); \ |
237 | \ |
309 | \ |
238 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
310 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
239 | init (base + cur, newcnt - cur); \ |
311 | init (base + cur, newcnt - cur); \ |
240 | cur = newcnt; \ |
312 | cur = newcnt; \ |
241 | } |
313 | } |
242 | |
314 | |
243 | #define array_slim(stem) \ |
315 | #define array_slim(type,stem) \ |
244 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
316 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
245 | { \ |
317 | { \ |
246 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
318 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
247 | base = realloc (base, sizeof (*base) * (stem ## max)); \ |
319 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
248 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
320 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
249 | } |
321 | } |
250 | |
322 | |
|
|
323 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
324 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
325 | #define array_free_microshit(stem) \ |
|
|
326 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
327 | |
251 | #define array_free(stem, idx) \ |
328 | #define array_free(stem, idx) \ |
252 | free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
329 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
253 | |
330 | |
254 | /*****************************************************************************/ |
331 | /*****************************************************************************/ |
255 | |
332 | |
256 | static void |
333 | static void |
257 | anfds_init (ANFD *base, int count) |
334 | anfds_init (ANFD *base, int count) |
… | |
… | |
264 | |
341 | |
265 | ++base; |
342 | ++base; |
266 | } |
343 | } |
267 | } |
344 | } |
268 | |
345 | |
269 | static void |
346 | void |
270 | event (EV_P_ W w, int events) |
347 | ev_feed_event (EV_P_ void *w, int revents) |
271 | { |
348 | { |
|
|
349 | W w_ = (W)w; |
|
|
350 | |
272 | if (w->pending) |
351 | if (w_->pending) |
273 | { |
352 | { |
274 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
353 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
275 | return; |
354 | return; |
276 | } |
355 | } |
277 | |
356 | |
278 | w->pending = ++pendingcnt [ABSPRI (w)]; |
357 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
279 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
358 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
280 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
359 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
281 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
360 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
282 | } |
361 | } |
283 | |
362 | |
284 | static void |
363 | static void |
285 | queue_events (EV_P_ W *events, int eventcnt, int type) |
364 | queue_events (EV_P_ W *events, int eventcnt, int type) |
286 | { |
365 | { |
287 | int i; |
366 | int i; |
288 | |
367 | |
289 | for (i = 0; i < eventcnt; ++i) |
368 | for (i = 0; i < eventcnt; ++i) |
290 | event (EV_A_ events [i], type); |
369 | ev_feed_event (EV_A_ events [i], type); |
291 | } |
370 | } |
292 | |
371 | |
293 | static void |
372 | inline void |
294 | fd_event (EV_P_ int fd, int events) |
373 | fd_event (EV_P_ int fd, int revents) |
295 | { |
374 | { |
296 | ANFD *anfd = anfds + fd; |
375 | ANFD *anfd = anfds + fd; |
297 | struct ev_io *w; |
376 | struct ev_io *w; |
298 | |
377 | |
299 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
378 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
300 | { |
379 | { |
301 | int ev = w->events & events; |
380 | int ev = w->events & revents; |
302 | |
381 | |
303 | if (ev) |
382 | if (ev) |
304 | event (EV_A_ (W)w, ev); |
383 | ev_feed_event (EV_A_ (W)w, ev); |
305 | } |
384 | } |
|
|
385 | } |
|
|
386 | |
|
|
387 | void |
|
|
388 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
389 | { |
|
|
390 | fd_event (EV_A_ fd, revents); |
306 | } |
391 | } |
307 | |
392 | |
308 | /*****************************************************************************/ |
393 | /*****************************************************************************/ |
309 | |
394 | |
310 | static void |
395 | static void |
… | |
… | |
333 | } |
418 | } |
334 | |
419 | |
335 | static void |
420 | static void |
336 | fd_change (EV_P_ int fd) |
421 | fd_change (EV_P_ int fd) |
337 | { |
422 | { |
338 | if (anfds [fd].reify || fdchangecnt < 0) |
423 | if (anfds [fd].reify) |
339 | return; |
424 | return; |
340 | |
425 | |
341 | anfds [fd].reify = 1; |
426 | anfds [fd].reify = 1; |
342 | |
427 | |
343 | ++fdchangecnt; |
428 | ++fdchangecnt; |
344 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
429 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
345 | fdchanges [fdchangecnt - 1] = fd; |
430 | fdchanges [fdchangecnt - 1] = fd; |
346 | } |
431 | } |
347 | |
432 | |
348 | static void |
433 | static void |
349 | fd_kill (EV_P_ int fd) |
434 | fd_kill (EV_P_ int fd) |
… | |
… | |
351 | struct ev_io *w; |
436 | struct ev_io *w; |
352 | |
437 | |
353 | while ((w = (struct ev_io *)anfds [fd].head)) |
438 | while ((w = (struct ev_io *)anfds [fd].head)) |
354 | { |
439 | { |
355 | ev_io_stop (EV_A_ w); |
440 | ev_io_stop (EV_A_ w); |
356 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
441 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
357 | } |
442 | } |
|
|
443 | } |
|
|
444 | |
|
|
445 | static int |
|
|
446 | fd_valid (int fd) |
|
|
447 | { |
|
|
448 | #ifdef WIN32 |
|
|
449 | return !!win32_get_osfhandle (fd); |
|
|
450 | #else |
|
|
451 | return fcntl (fd, F_GETFD) != -1; |
|
|
452 | #endif |
358 | } |
453 | } |
359 | |
454 | |
360 | /* called on EBADF to verify fds */ |
455 | /* called on EBADF to verify fds */ |
361 | static void |
456 | static void |
362 | fd_ebadf (EV_P) |
457 | fd_ebadf (EV_P) |
363 | { |
458 | { |
364 | int fd; |
459 | int fd; |
365 | |
460 | |
366 | for (fd = 0; fd < anfdmax; ++fd) |
461 | for (fd = 0; fd < anfdmax; ++fd) |
367 | if (anfds [fd].events) |
462 | if (anfds [fd].events) |
368 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
463 | if (!fd_valid (fd) == -1 && errno == EBADF) |
369 | fd_kill (EV_A_ fd); |
464 | fd_kill (EV_A_ fd); |
370 | } |
465 | } |
371 | |
466 | |
372 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
467 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
373 | static void |
468 | static void |
… | |
… | |
376 | int fd; |
471 | int fd; |
377 | |
472 | |
378 | for (fd = anfdmax; fd--; ) |
473 | for (fd = anfdmax; fd--; ) |
379 | if (anfds [fd].events) |
474 | if (anfds [fd].events) |
380 | { |
475 | { |
381 | close (fd); |
|
|
382 | fd_kill (EV_A_ fd); |
476 | fd_kill (EV_A_ fd); |
383 | return; |
477 | return; |
384 | } |
478 | } |
385 | } |
479 | } |
386 | |
480 | |
387 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
481 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
388 | static void |
482 | static void |
389 | fd_rearm_all (EV_P) |
483 | fd_rearm_all (EV_P) |
390 | { |
484 | { |
391 | int fd; |
485 | int fd; |
392 | |
486 | |
… | |
… | |
440 | |
534 | |
441 | heap [k] = w; |
535 | heap [k] = w; |
442 | ((W)heap [k])->active = k + 1; |
536 | ((W)heap [k])->active = k + 1; |
443 | } |
537 | } |
444 | |
538 | |
|
|
539 | inline void |
|
|
540 | adjustheap (WT *heap, int N, int k) |
|
|
541 | { |
|
|
542 | upheap (heap, k); |
|
|
543 | downheap (heap, N, k); |
|
|
544 | } |
|
|
545 | |
445 | /*****************************************************************************/ |
546 | /*****************************************************************************/ |
446 | |
547 | |
447 | typedef struct |
548 | typedef struct |
448 | { |
549 | { |
449 | struct ev_watcher_list *head; |
550 | WL head; |
450 | sig_atomic_t volatile gotsig; |
551 | sig_atomic_t volatile gotsig; |
451 | } ANSIG; |
552 | } ANSIG; |
452 | |
553 | |
453 | static ANSIG *signals; |
554 | static ANSIG *signals; |
454 | static int signalmax; |
555 | static int signalmax; |
… | |
… | |
480 | |
581 | |
481 | if (!gotsig) |
582 | if (!gotsig) |
482 | { |
583 | { |
483 | int old_errno = errno; |
584 | int old_errno = errno; |
484 | gotsig = 1; |
585 | gotsig = 1; |
|
|
586 | #ifdef WIN32 |
|
|
587 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
588 | #else |
485 | write (sigpipe [1], &signum, 1); |
589 | write (sigpipe [1], &signum, 1); |
|
|
590 | #endif |
486 | errno = old_errno; |
591 | errno = old_errno; |
487 | } |
592 | } |
488 | } |
593 | } |
489 | |
594 | |
|
|
595 | void |
|
|
596 | ev_feed_signal_event (EV_P_ int signum) |
|
|
597 | { |
|
|
598 | WL w; |
|
|
599 | |
|
|
600 | #if EV_MULTIPLICITY |
|
|
601 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | --signum; |
|
|
605 | |
|
|
606 | if (signum < 0 || signum >= signalmax) |
|
|
607 | return; |
|
|
608 | |
|
|
609 | signals [signum].gotsig = 0; |
|
|
610 | |
|
|
611 | for (w = signals [signum].head; w; w = w->next) |
|
|
612 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
613 | } |
|
|
614 | |
490 | static void |
615 | static void |
491 | sigcb (EV_P_ struct ev_io *iow, int revents) |
616 | sigcb (EV_P_ struct ev_io *iow, int revents) |
492 | { |
617 | { |
493 | struct ev_watcher_list *w; |
|
|
494 | int signum; |
618 | int signum; |
495 | |
619 | |
|
|
620 | #ifdef WIN32 |
|
|
621 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
622 | #else |
496 | read (sigpipe [0], &revents, 1); |
623 | read (sigpipe [0], &revents, 1); |
|
|
624 | #endif |
497 | gotsig = 0; |
625 | gotsig = 0; |
498 | |
626 | |
499 | for (signum = signalmax; signum--; ) |
627 | for (signum = signalmax; signum--; ) |
500 | if (signals [signum].gotsig) |
628 | if (signals [signum].gotsig) |
501 | { |
629 | ev_feed_signal_event (EV_A_ signum + 1); |
502 | signals [signum].gotsig = 0; |
|
|
503 | |
|
|
504 | for (w = signals [signum].head; w; w = w->next) |
|
|
505 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
506 | } |
|
|
507 | } |
630 | } |
508 | |
631 | |
509 | static void |
632 | static void |
510 | siginit (EV_P) |
633 | siginit (EV_P) |
511 | { |
634 | { |
… | |
… | |
523 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
646 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
524 | } |
647 | } |
525 | |
648 | |
526 | /*****************************************************************************/ |
649 | /*****************************************************************************/ |
527 | |
650 | |
|
|
651 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
652 | |
528 | #ifndef WIN32 |
653 | #ifndef WIN32 |
529 | |
654 | |
530 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
531 | static struct ev_signal childev; |
655 | static struct ev_signal childev; |
532 | |
656 | |
533 | #ifndef WCONTINUED |
657 | #ifndef WCONTINUED |
534 | # define WCONTINUED 0 |
658 | # define WCONTINUED 0 |
535 | #endif |
659 | #endif |
… | |
… | |
543 | if (w->pid == pid || !w->pid) |
667 | if (w->pid == pid || !w->pid) |
544 | { |
668 | { |
545 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
669 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
546 | w->rpid = pid; |
670 | w->rpid = pid; |
547 | w->rstatus = status; |
671 | w->rstatus = status; |
548 | event (EV_A_ (W)w, EV_CHILD); |
672 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
549 | } |
673 | } |
550 | } |
674 | } |
551 | |
675 | |
552 | static void |
676 | static void |
553 | childcb (EV_P_ struct ev_signal *sw, int revents) |
677 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
555 | int pid, status; |
679 | int pid, status; |
556 | |
680 | |
557 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
681 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
558 | { |
682 | { |
559 | /* make sure we are called again until all childs have been reaped */ |
683 | /* make sure we are called again until all childs have been reaped */ |
560 | event (EV_A_ (W)sw, EV_SIGNAL); |
684 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
561 | |
685 | |
562 | child_reap (EV_A_ sw, pid, pid, status); |
686 | child_reap (EV_A_ sw, pid, pid, status); |
563 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
687 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
564 | } |
688 | } |
565 | } |
689 | } |
… | |
… | |
622 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
746 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
623 | have_monotonic = 1; |
747 | have_monotonic = 1; |
624 | } |
748 | } |
625 | #endif |
749 | #endif |
626 | |
750 | |
627 | rt_now = ev_time (); |
751 | ev_rt_now = ev_time (); |
628 | mn_now = get_clock (); |
752 | mn_now = get_clock (); |
629 | now_floor = mn_now; |
753 | now_floor = mn_now; |
630 | rtmn_diff = rt_now - mn_now; |
754 | rtmn_diff = ev_rt_now - mn_now; |
631 | |
755 | |
632 | if (methods == EVMETHOD_AUTO) |
756 | if (methods == EVMETHOD_AUTO) |
633 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
757 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
634 | methods = atoi (getenv ("LIBEV_METHODS")); |
758 | methods = atoi (getenv ("LIBEV_METHODS")); |
635 | else |
759 | else |
… | |
… | |
649 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
773 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
650 | #endif |
774 | #endif |
651 | #if EV_USE_SELECT |
775 | #if EV_USE_SELECT |
652 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
776 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
653 | #endif |
777 | #endif |
|
|
778 | |
|
|
779 | ev_init (&sigev, sigcb); |
|
|
780 | ev_set_priority (&sigev, EV_MAXPRI); |
654 | } |
781 | } |
655 | } |
782 | } |
656 | |
783 | |
657 | void |
784 | void |
658 | loop_destroy (EV_P) |
785 | loop_destroy (EV_P) |
… | |
… | |
676 | #endif |
803 | #endif |
677 | |
804 | |
678 | for (i = NUMPRI; i--; ) |
805 | for (i = NUMPRI; i--; ) |
679 | array_free (pending, [i]); |
806 | array_free (pending, [i]); |
680 | |
807 | |
|
|
808 | /* have to use the microsoft-never-gets-it-right macro */ |
681 | array_free (fdchange, ); |
809 | array_free_microshit (fdchange); |
682 | array_free (timer, ); |
810 | array_free_microshit (timer); |
|
|
811 | #if EV_PERIODICS |
683 | array_free (periodic, ); |
812 | array_free_microshit (periodic); |
|
|
813 | #endif |
684 | array_free (idle, ); |
814 | array_free_microshit (idle); |
685 | array_free (prepare, ); |
815 | array_free_microshit (prepare); |
686 | array_free (check, ); |
816 | array_free_microshit (check); |
687 | |
817 | |
688 | method = 0; |
818 | method = 0; |
689 | /*TODO*/ |
|
|
690 | } |
819 | } |
691 | |
820 | |
692 | void |
821 | static void |
693 | loop_fork (EV_P) |
822 | loop_fork (EV_P) |
694 | { |
823 | { |
695 | /*TODO*/ |
|
|
696 | #if EV_USE_EPOLL |
824 | #if EV_USE_EPOLL |
697 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
825 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
698 | #endif |
826 | #endif |
699 | #if EV_USE_KQUEUE |
827 | #if EV_USE_KQUEUE |
700 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
828 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
701 | #endif |
829 | #endif |
|
|
830 | |
|
|
831 | if (ev_is_active (&sigev)) |
|
|
832 | { |
|
|
833 | /* default loop */ |
|
|
834 | |
|
|
835 | ev_ref (EV_A); |
|
|
836 | ev_io_stop (EV_A_ &sigev); |
|
|
837 | close (sigpipe [0]); |
|
|
838 | close (sigpipe [1]); |
|
|
839 | |
|
|
840 | while (pipe (sigpipe)) |
|
|
841 | syserr ("(libev) error creating pipe"); |
|
|
842 | |
|
|
843 | siginit (EV_A); |
|
|
844 | } |
|
|
845 | |
|
|
846 | postfork = 0; |
702 | } |
847 | } |
703 | |
848 | |
704 | #if EV_MULTIPLICITY |
849 | #if EV_MULTIPLICITY |
705 | struct ev_loop * |
850 | struct ev_loop * |
706 | ev_loop_new (int methods) |
851 | ev_loop_new (int methods) |
707 | { |
852 | { |
708 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
853 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
854 | |
|
|
855 | memset (loop, 0, sizeof (struct ev_loop)); |
709 | |
856 | |
710 | loop_init (EV_A_ methods); |
857 | loop_init (EV_A_ methods); |
711 | |
858 | |
712 | if (ev_method (EV_A)) |
859 | if (ev_method (EV_A)) |
713 | return loop; |
860 | return loop; |
… | |
… | |
717 | |
864 | |
718 | void |
865 | void |
719 | ev_loop_destroy (EV_P) |
866 | ev_loop_destroy (EV_P) |
720 | { |
867 | { |
721 | loop_destroy (EV_A); |
868 | loop_destroy (EV_A); |
722 | free (loop); |
869 | ev_free (loop); |
723 | } |
870 | } |
724 | |
871 | |
725 | void |
872 | void |
726 | ev_loop_fork (EV_P) |
873 | ev_loop_fork (EV_P) |
727 | { |
874 | { |
728 | loop_fork (EV_A); |
875 | postfork = 1; |
729 | } |
876 | } |
730 | |
877 | |
731 | #endif |
878 | #endif |
732 | |
879 | |
733 | #if EV_MULTIPLICITY |
880 | #if EV_MULTIPLICITY |
734 | struct ev_loop default_loop_struct; |
|
|
735 | static struct ev_loop *default_loop; |
|
|
736 | |
|
|
737 | struct ev_loop * |
881 | struct ev_loop * |
738 | #else |
882 | #else |
739 | static int default_loop; |
|
|
740 | |
|
|
741 | int |
883 | int |
742 | #endif |
884 | #endif |
743 | ev_default_loop (int methods) |
885 | ev_default_loop (int methods) |
744 | { |
886 | { |
745 | if (sigpipe [0] == sigpipe [1]) |
887 | if (sigpipe [0] == sigpipe [1]) |
… | |
… | |
756 | |
898 | |
757 | loop_init (EV_A_ methods); |
899 | loop_init (EV_A_ methods); |
758 | |
900 | |
759 | if (ev_method (EV_A)) |
901 | if (ev_method (EV_A)) |
760 | { |
902 | { |
761 | ev_watcher_init (&sigev, sigcb); |
|
|
762 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
763 | siginit (EV_A); |
903 | siginit (EV_A); |
764 | |
904 | |
765 | #ifndef WIN32 |
905 | #ifndef WIN32 |
766 | ev_signal_init (&childev, childcb, SIGCHLD); |
906 | ev_signal_init (&childev, childcb, SIGCHLD); |
767 | ev_set_priority (&childev, EV_MAXPRI); |
907 | ev_set_priority (&childev, EV_MAXPRI); |
… | |
… | |
781 | { |
921 | { |
782 | #if EV_MULTIPLICITY |
922 | #if EV_MULTIPLICITY |
783 | struct ev_loop *loop = default_loop; |
923 | struct ev_loop *loop = default_loop; |
784 | #endif |
924 | #endif |
785 | |
925 | |
|
|
926 | #ifndef WIN32 |
786 | ev_ref (EV_A); /* child watcher */ |
927 | ev_ref (EV_A); /* child watcher */ |
787 | ev_signal_stop (EV_A_ &childev); |
928 | ev_signal_stop (EV_A_ &childev); |
|
|
929 | #endif |
788 | |
930 | |
789 | ev_ref (EV_A); /* signal watcher */ |
931 | ev_ref (EV_A); /* signal watcher */ |
790 | ev_io_stop (EV_A_ &sigev); |
932 | ev_io_stop (EV_A_ &sigev); |
791 | |
933 | |
792 | close (sigpipe [0]); sigpipe [0] = 0; |
934 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
800 | { |
942 | { |
801 | #if EV_MULTIPLICITY |
943 | #if EV_MULTIPLICITY |
802 | struct ev_loop *loop = default_loop; |
944 | struct ev_loop *loop = default_loop; |
803 | #endif |
945 | #endif |
804 | |
946 | |
805 | loop_fork (EV_A); |
947 | if (method) |
806 | |
948 | postfork = 1; |
807 | ev_io_stop (EV_A_ &sigev); |
|
|
808 | close (sigpipe [0]); |
|
|
809 | close (sigpipe [1]); |
|
|
810 | pipe (sigpipe); |
|
|
811 | |
|
|
812 | ev_ref (EV_A); /* signal watcher */ |
|
|
813 | siginit (EV_A); |
|
|
814 | } |
949 | } |
815 | |
950 | |
816 | /*****************************************************************************/ |
951 | /*****************************************************************************/ |
|
|
952 | |
|
|
953 | static int |
|
|
954 | any_pending (EV_P) |
|
|
955 | { |
|
|
956 | int pri; |
|
|
957 | |
|
|
958 | for (pri = NUMPRI; pri--; ) |
|
|
959 | if (pendingcnt [pri]) |
|
|
960 | return 1; |
|
|
961 | |
|
|
962 | return 0; |
|
|
963 | } |
817 | |
964 | |
818 | static void |
965 | static void |
819 | call_pending (EV_P) |
966 | call_pending (EV_P) |
820 | { |
967 | { |
821 | int pri; |
968 | int pri; |
… | |
… | |
826 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
973 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
827 | |
974 | |
828 | if (p->w) |
975 | if (p->w) |
829 | { |
976 | { |
830 | p->w->pending = 0; |
977 | p->w->pending = 0; |
831 | p->w->cb (EV_A_ p->w, p->events); |
978 | EV_CB_INVOKE (p->w, p->events); |
832 | } |
979 | } |
833 | } |
980 | } |
834 | } |
981 | } |
835 | |
982 | |
836 | static void |
983 | static void |
… | |
… | |
844 | |
991 | |
845 | /* first reschedule or stop timer */ |
992 | /* first reschedule or stop timer */ |
846 | if (w->repeat) |
993 | if (w->repeat) |
847 | { |
994 | { |
848 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
995 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
996 | |
849 | ((WT)w)->at = mn_now + w->repeat; |
997 | ((WT)w)->at += w->repeat; |
|
|
998 | if (((WT)w)->at < mn_now) |
|
|
999 | ((WT)w)->at = mn_now; |
|
|
1000 | |
850 | downheap ((WT *)timers, timercnt, 0); |
1001 | downheap ((WT *)timers, timercnt, 0); |
851 | } |
1002 | } |
852 | else |
1003 | else |
853 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1004 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
854 | |
1005 | |
855 | event (EV_A_ (W)w, EV_TIMEOUT); |
1006 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
856 | } |
1007 | } |
857 | } |
1008 | } |
858 | |
1009 | |
|
|
1010 | #if EV_PERIODICS |
859 | static void |
1011 | static void |
860 | periodics_reify (EV_P) |
1012 | periodics_reify (EV_P) |
861 | { |
1013 | { |
862 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1014 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
863 | { |
1015 | { |
864 | struct ev_periodic *w = periodics [0]; |
1016 | struct ev_periodic *w = periodics [0]; |
865 | |
1017 | |
866 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1018 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
867 | |
1019 | |
868 | /* first reschedule or stop timer */ |
1020 | /* first reschedule or stop timer */ |
869 | if (w->interval) |
1021 | if (w->reschedule_cb) |
870 | { |
1022 | { |
|
|
1023 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1024 | |
|
|
1025 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1026 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1027 | } |
|
|
1028 | else if (w->interval) |
|
|
1029 | { |
871 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1030 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
872 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1031 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
873 | downheap ((WT *)periodics, periodiccnt, 0); |
1032 | downheap ((WT *)periodics, periodiccnt, 0); |
874 | } |
1033 | } |
875 | else |
1034 | else |
876 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1035 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
877 | |
1036 | |
878 | event (EV_A_ (W)w, EV_PERIODIC); |
1037 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
879 | } |
1038 | } |
880 | } |
1039 | } |
881 | |
1040 | |
882 | static void |
1041 | static void |
883 | periodics_reschedule (EV_P) |
1042 | periodics_reschedule (EV_P) |
… | |
… | |
887 | /* adjust periodics after time jump */ |
1046 | /* adjust periodics after time jump */ |
888 | for (i = 0; i < periodiccnt; ++i) |
1047 | for (i = 0; i < periodiccnt; ++i) |
889 | { |
1048 | { |
890 | struct ev_periodic *w = periodics [i]; |
1049 | struct ev_periodic *w = periodics [i]; |
891 | |
1050 | |
|
|
1051 | if (w->reschedule_cb) |
|
|
1052 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
892 | if (w->interval) |
1053 | else if (w->interval) |
893 | { |
|
|
894 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1054 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
895 | |
|
|
896 | if (fabs (diff) >= 1e-4) |
|
|
897 | { |
|
|
898 | ev_periodic_stop (EV_A_ w); |
|
|
899 | ev_periodic_start (EV_A_ w); |
|
|
900 | |
|
|
901 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
902 | } |
|
|
903 | } |
|
|
904 | } |
1055 | } |
|
|
1056 | |
|
|
1057 | /* now rebuild the heap */ |
|
|
1058 | for (i = periodiccnt >> 1; i--; ) |
|
|
1059 | downheap ((WT *)periodics, periodiccnt, i); |
905 | } |
1060 | } |
|
|
1061 | #endif |
906 | |
1062 | |
907 | inline int |
1063 | inline int |
908 | time_update_monotonic (EV_P) |
1064 | time_update_monotonic (EV_P) |
909 | { |
1065 | { |
910 | mn_now = get_clock (); |
1066 | mn_now = get_clock (); |
911 | |
1067 | |
912 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1068 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
913 | { |
1069 | { |
914 | rt_now = rtmn_diff + mn_now; |
1070 | ev_rt_now = rtmn_diff + mn_now; |
915 | return 0; |
1071 | return 0; |
916 | } |
1072 | } |
917 | else |
1073 | else |
918 | { |
1074 | { |
919 | now_floor = mn_now; |
1075 | now_floor = mn_now; |
920 | rt_now = ev_time (); |
1076 | ev_rt_now = ev_time (); |
921 | return 1; |
1077 | return 1; |
922 | } |
1078 | } |
923 | } |
1079 | } |
924 | |
1080 | |
925 | static void |
1081 | static void |
… | |
… | |
934 | { |
1090 | { |
935 | ev_tstamp odiff = rtmn_diff; |
1091 | ev_tstamp odiff = rtmn_diff; |
936 | |
1092 | |
937 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1093 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
938 | { |
1094 | { |
939 | rtmn_diff = rt_now - mn_now; |
1095 | rtmn_diff = ev_rt_now - mn_now; |
940 | |
1096 | |
941 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1097 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
942 | return; /* all is well */ |
1098 | return; /* all is well */ |
943 | |
1099 | |
944 | rt_now = ev_time (); |
1100 | ev_rt_now = ev_time (); |
945 | mn_now = get_clock (); |
1101 | mn_now = get_clock (); |
946 | now_floor = mn_now; |
1102 | now_floor = mn_now; |
947 | } |
1103 | } |
948 | |
1104 | |
|
|
1105 | # if EV_PERIODICS |
949 | periodics_reschedule (EV_A); |
1106 | periodics_reschedule (EV_A); |
|
|
1107 | # endif |
950 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1108 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
951 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1109 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
952 | } |
1110 | } |
953 | } |
1111 | } |
954 | else |
1112 | else |
955 | #endif |
1113 | #endif |
956 | { |
1114 | { |
957 | rt_now = ev_time (); |
1115 | ev_rt_now = ev_time (); |
958 | |
1116 | |
959 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1117 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
960 | { |
1118 | { |
|
|
1119 | #if EV_PERIODICS |
961 | periodics_reschedule (EV_A); |
1120 | periodics_reschedule (EV_A); |
|
|
1121 | #endif |
962 | |
1122 | |
963 | /* adjust timers. this is easy, as the offset is the same for all */ |
1123 | /* adjust timers. this is easy, as the offset is the same for all */ |
964 | for (i = 0; i < timercnt; ++i) |
1124 | for (i = 0; i < timercnt; ++i) |
965 | ((WT)timers [i])->at += rt_now - mn_now; |
1125 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
966 | } |
1126 | } |
967 | |
1127 | |
968 | mn_now = rt_now; |
1128 | mn_now = ev_rt_now; |
969 | } |
1129 | } |
970 | } |
1130 | } |
971 | |
1131 | |
972 | void |
1132 | void |
973 | ev_ref (EV_P) |
1133 | ev_ref (EV_P) |
… | |
… | |
996 | { |
1156 | { |
997 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1157 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
998 | call_pending (EV_A); |
1158 | call_pending (EV_A); |
999 | } |
1159 | } |
1000 | |
1160 | |
|
|
1161 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1162 | if (expect_false (postfork)) |
|
|
1163 | loop_fork (EV_A); |
|
|
1164 | |
1001 | /* update fd-related kernel structures */ |
1165 | /* update fd-related kernel structures */ |
1002 | fd_reify (EV_A); |
1166 | fd_reify (EV_A); |
1003 | |
1167 | |
1004 | /* calculate blocking time */ |
1168 | /* calculate blocking time */ |
1005 | |
1169 | |
1006 | /* we only need this for !monotonic clockor timers, but as we basically |
1170 | /* we only need this for !monotonic clock or timers, but as we basically |
1007 | always have timers, we just calculate it always */ |
1171 | always have timers, we just calculate it always */ |
1008 | #if EV_USE_MONOTONIC |
1172 | #if EV_USE_MONOTONIC |
1009 | if (expect_true (have_monotonic)) |
1173 | if (expect_true (have_monotonic)) |
1010 | time_update_monotonic (EV_A); |
1174 | time_update_monotonic (EV_A); |
1011 | else |
1175 | else |
1012 | #endif |
1176 | #endif |
1013 | { |
1177 | { |
1014 | rt_now = ev_time (); |
1178 | ev_rt_now = ev_time (); |
1015 | mn_now = rt_now; |
1179 | mn_now = ev_rt_now; |
1016 | } |
1180 | } |
1017 | |
1181 | |
1018 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1182 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1019 | block = 0.; |
1183 | block = 0.; |
1020 | else |
1184 | else |
… | |
… | |
1025 | { |
1189 | { |
1026 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1190 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1027 | if (block > to) block = to; |
1191 | if (block > to) block = to; |
1028 | } |
1192 | } |
1029 | |
1193 | |
|
|
1194 | #if EV_PERIODICS |
1030 | if (periodiccnt) |
1195 | if (periodiccnt) |
1031 | { |
1196 | { |
1032 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1197 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1033 | if (block > to) block = to; |
1198 | if (block > to) block = to; |
1034 | } |
1199 | } |
|
|
1200 | #endif |
1035 | |
1201 | |
1036 | if (block < 0.) block = 0.; |
1202 | if (block < 0.) block = 0.; |
1037 | } |
1203 | } |
1038 | |
1204 | |
1039 | method_poll (EV_A_ block); |
1205 | method_poll (EV_A_ block); |
1040 | |
1206 | |
1041 | /* update rt_now, do magic */ |
1207 | /* update ev_rt_now, do magic */ |
1042 | time_update (EV_A); |
1208 | time_update (EV_A); |
1043 | |
1209 | |
1044 | /* queue pending timers and reschedule them */ |
1210 | /* queue pending timers and reschedule them */ |
1045 | timers_reify (EV_A); /* relative timers called last */ |
1211 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1212 | #if EV_PERIODICS |
1046 | periodics_reify (EV_A); /* absolute timers called first */ |
1213 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1214 | #endif |
1047 | |
1215 | |
1048 | /* queue idle watchers unless io or timers are pending */ |
1216 | /* queue idle watchers unless io or timers are pending */ |
1049 | if (!pendingcnt) |
1217 | if (idlecnt && !any_pending (EV_A)) |
1050 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1218 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1051 | |
1219 | |
1052 | /* queue check watchers, to be executed first */ |
1220 | /* queue check watchers, to be executed first */ |
1053 | if (checkcnt) |
1221 | if (checkcnt) |
1054 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1222 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
… | |
… | |
1129 | return; |
1297 | return; |
1130 | |
1298 | |
1131 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1299 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1132 | |
1300 | |
1133 | ev_start (EV_A_ (W)w, 1); |
1301 | ev_start (EV_A_ (W)w, 1); |
1134 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1302 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1135 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1303 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1136 | |
1304 | |
1137 | fd_change (EV_A_ fd); |
1305 | fd_change (EV_A_ fd); |
1138 | } |
1306 | } |
1139 | |
1307 | |
… | |
… | |
1142 | { |
1310 | { |
1143 | ev_clear_pending (EV_A_ (W)w); |
1311 | ev_clear_pending (EV_A_ (W)w); |
1144 | if (!ev_is_active (w)) |
1312 | if (!ev_is_active (w)) |
1145 | return; |
1313 | return; |
1146 | |
1314 | |
|
|
1315 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1316 | |
1147 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1317 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1148 | ev_stop (EV_A_ (W)w); |
1318 | ev_stop (EV_A_ (W)w); |
1149 | |
1319 | |
1150 | fd_change (EV_A_ w->fd); |
1320 | fd_change (EV_A_ w->fd); |
1151 | } |
1321 | } |
… | |
… | |
1159 | ((WT)w)->at += mn_now; |
1329 | ((WT)w)->at += mn_now; |
1160 | |
1330 | |
1161 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1331 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1162 | |
1332 | |
1163 | ev_start (EV_A_ (W)w, ++timercnt); |
1333 | ev_start (EV_A_ (W)w, ++timercnt); |
1164 | array_needsize (timers, timermax, timercnt, ); |
1334 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1165 | timers [timercnt - 1] = w; |
1335 | timers [timercnt - 1] = w; |
1166 | upheap ((WT *)timers, timercnt - 1); |
1336 | upheap ((WT *)timers, timercnt - 1); |
1167 | |
1337 | |
1168 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1338 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1169 | } |
1339 | } |
… | |
… | |
1178 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1348 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1179 | |
1349 | |
1180 | if (((W)w)->active < timercnt--) |
1350 | if (((W)w)->active < timercnt--) |
1181 | { |
1351 | { |
1182 | timers [((W)w)->active - 1] = timers [timercnt]; |
1352 | timers [((W)w)->active - 1] = timers [timercnt]; |
1183 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1353 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1184 | } |
1354 | } |
1185 | |
1355 | |
1186 | ((WT)w)->at = w->repeat; |
1356 | ((WT)w)->at -= mn_now; |
1187 | |
1357 | |
1188 | ev_stop (EV_A_ (W)w); |
1358 | ev_stop (EV_A_ (W)w); |
1189 | } |
1359 | } |
1190 | |
1360 | |
1191 | void |
1361 | void |
… | |
… | |
1194 | if (ev_is_active (w)) |
1364 | if (ev_is_active (w)) |
1195 | { |
1365 | { |
1196 | if (w->repeat) |
1366 | if (w->repeat) |
1197 | { |
1367 | { |
1198 | ((WT)w)->at = mn_now + w->repeat; |
1368 | ((WT)w)->at = mn_now + w->repeat; |
1199 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1369 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1200 | } |
1370 | } |
1201 | else |
1371 | else |
1202 | ev_timer_stop (EV_A_ w); |
1372 | ev_timer_stop (EV_A_ w); |
1203 | } |
1373 | } |
1204 | else if (w->repeat) |
1374 | else if (w->repeat) |
1205 | ev_timer_start (EV_A_ w); |
1375 | ev_timer_start (EV_A_ w); |
1206 | } |
1376 | } |
1207 | |
1377 | |
|
|
1378 | #if EV_PERIODICS |
1208 | void |
1379 | void |
1209 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1380 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1210 | { |
1381 | { |
1211 | if (ev_is_active (w)) |
1382 | if (ev_is_active (w)) |
1212 | return; |
1383 | return; |
1213 | |
1384 | |
|
|
1385 | if (w->reschedule_cb) |
|
|
1386 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1387 | else if (w->interval) |
|
|
1388 | { |
1214 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1389 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1215 | |
|
|
1216 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1390 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1217 | if (w->interval) |
|
|
1218 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1391 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1392 | } |
1219 | |
1393 | |
1220 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1394 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1221 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1395 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1222 | periodics [periodiccnt - 1] = w; |
1396 | periodics [periodiccnt - 1] = w; |
1223 | upheap ((WT *)periodics, periodiccnt - 1); |
1397 | upheap ((WT *)periodics, periodiccnt - 1); |
1224 | |
1398 | |
1225 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1399 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1226 | } |
1400 | } |
… | |
… | |
1235 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1409 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1236 | |
1410 | |
1237 | if (((W)w)->active < periodiccnt--) |
1411 | if (((W)w)->active < periodiccnt--) |
1238 | { |
1412 | { |
1239 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1413 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1240 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1414 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1241 | } |
1415 | } |
1242 | |
1416 | |
1243 | ev_stop (EV_A_ (W)w); |
1417 | ev_stop (EV_A_ (W)w); |
1244 | } |
1418 | } |
1245 | |
1419 | |
1246 | void |
1420 | void |
|
|
1421 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1422 | { |
|
|
1423 | /* TODO: use adjustheap and recalculation */ |
|
|
1424 | ev_periodic_stop (EV_A_ w); |
|
|
1425 | ev_periodic_start (EV_A_ w); |
|
|
1426 | } |
|
|
1427 | #endif |
|
|
1428 | |
|
|
1429 | void |
1247 | ev_idle_start (EV_P_ struct ev_idle *w) |
1430 | ev_idle_start (EV_P_ struct ev_idle *w) |
1248 | { |
1431 | { |
1249 | if (ev_is_active (w)) |
1432 | if (ev_is_active (w)) |
1250 | return; |
1433 | return; |
1251 | |
1434 | |
1252 | ev_start (EV_A_ (W)w, ++idlecnt); |
1435 | ev_start (EV_A_ (W)w, ++idlecnt); |
1253 | array_needsize (idles, idlemax, idlecnt, ); |
1436 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
1254 | idles [idlecnt - 1] = w; |
1437 | idles [idlecnt - 1] = w; |
1255 | } |
1438 | } |
1256 | |
1439 | |
1257 | void |
1440 | void |
1258 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1441 | ev_idle_stop (EV_P_ struct ev_idle *w) |
… | |
… | |
1270 | { |
1453 | { |
1271 | if (ev_is_active (w)) |
1454 | if (ev_is_active (w)) |
1272 | return; |
1455 | return; |
1273 | |
1456 | |
1274 | ev_start (EV_A_ (W)w, ++preparecnt); |
1457 | ev_start (EV_A_ (W)w, ++preparecnt); |
1275 | array_needsize (prepares, preparemax, preparecnt, ); |
1458 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
1276 | prepares [preparecnt - 1] = w; |
1459 | prepares [preparecnt - 1] = w; |
1277 | } |
1460 | } |
1278 | |
1461 | |
1279 | void |
1462 | void |
1280 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1463 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
… | |
… | |
1292 | { |
1475 | { |
1293 | if (ev_is_active (w)) |
1476 | if (ev_is_active (w)) |
1294 | return; |
1477 | return; |
1295 | |
1478 | |
1296 | ev_start (EV_A_ (W)w, ++checkcnt); |
1479 | ev_start (EV_A_ (W)w, ++checkcnt); |
1297 | array_needsize (checks, checkmax, checkcnt, ); |
1480 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
1298 | checks [checkcnt - 1] = w; |
1481 | checks [checkcnt - 1] = w; |
1299 | } |
1482 | } |
1300 | |
1483 | |
1301 | void |
1484 | void |
1302 | ev_check_stop (EV_P_ struct ev_check *w) |
1485 | ev_check_stop (EV_P_ struct ev_check *w) |
1303 | { |
1486 | { |
1304 | ev_clear_pending (EV_A_ (W)w); |
1487 | ev_clear_pending (EV_A_ (W)w); |
1305 | if (ev_is_active (w)) |
1488 | if (!ev_is_active (w)) |
1306 | return; |
1489 | return; |
1307 | |
1490 | |
1308 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1491 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1309 | ev_stop (EV_A_ (W)w); |
1492 | ev_stop (EV_A_ (W)w); |
1310 | } |
1493 | } |
… | |
… | |
1323 | return; |
1506 | return; |
1324 | |
1507 | |
1325 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1508 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1326 | |
1509 | |
1327 | ev_start (EV_A_ (W)w, 1); |
1510 | ev_start (EV_A_ (W)w, 1); |
1328 | array_needsize (signals, signalmax, w->signum, signals_init); |
1511 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1329 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1512 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1330 | |
1513 | |
1331 | if (!((WL)w)->next) |
1514 | if (!((WL)w)->next) |
1332 | { |
1515 | { |
1333 | #if WIN32 |
1516 | #if WIN32 |
… | |
… | |
1371 | |
1554 | |
1372 | void |
1555 | void |
1373 | ev_child_stop (EV_P_ struct ev_child *w) |
1556 | ev_child_stop (EV_P_ struct ev_child *w) |
1374 | { |
1557 | { |
1375 | ev_clear_pending (EV_A_ (W)w); |
1558 | ev_clear_pending (EV_A_ (W)w); |
1376 | if (ev_is_active (w)) |
1559 | if (!ev_is_active (w)) |
1377 | return; |
1560 | return; |
1378 | |
1561 | |
1379 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1562 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1380 | ev_stop (EV_A_ (W)w); |
1563 | ev_stop (EV_A_ (W)w); |
1381 | } |
1564 | } |
… | |
… | |
1396 | void (*cb)(int revents, void *arg) = once->cb; |
1579 | void (*cb)(int revents, void *arg) = once->cb; |
1397 | void *arg = once->arg; |
1580 | void *arg = once->arg; |
1398 | |
1581 | |
1399 | ev_io_stop (EV_A_ &once->io); |
1582 | ev_io_stop (EV_A_ &once->io); |
1400 | ev_timer_stop (EV_A_ &once->to); |
1583 | ev_timer_stop (EV_A_ &once->to); |
1401 | free (once); |
1584 | ev_free (once); |
1402 | |
1585 | |
1403 | cb (revents, arg); |
1586 | cb (revents, arg); |
1404 | } |
1587 | } |
1405 | |
1588 | |
1406 | static void |
1589 | static void |
… | |
… | |
1416 | } |
1599 | } |
1417 | |
1600 | |
1418 | void |
1601 | void |
1419 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1602 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1420 | { |
1603 | { |
1421 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1604 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1422 | |
1605 | |
1423 | if (!once) |
1606 | if (!once) |
1424 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1607 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1425 | else |
1608 | else |
1426 | { |
1609 | { |
1427 | once->cb = cb; |
1610 | once->cb = cb; |
1428 | once->arg = arg; |
1611 | once->arg = arg; |
1429 | |
1612 | |
1430 | ev_watcher_init (&once->io, once_cb_io); |
1613 | ev_init (&once->io, once_cb_io); |
1431 | if (fd >= 0) |
1614 | if (fd >= 0) |
1432 | { |
1615 | { |
1433 | ev_io_set (&once->io, fd, events); |
1616 | ev_io_set (&once->io, fd, events); |
1434 | ev_io_start (EV_A_ &once->io); |
1617 | ev_io_start (EV_A_ &once->io); |
1435 | } |
1618 | } |
1436 | |
1619 | |
1437 | ev_watcher_init (&once->to, once_cb_to); |
1620 | ev_init (&once->to, once_cb_to); |
1438 | if (timeout >= 0.) |
1621 | if (timeout >= 0.) |
1439 | { |
1622 | { |
1440 | ev_timer_set (&once->to, timeout, 0.); |
1623 | ev_timer_set (&once->to, timeout, 0.); |
1441 | ev_timer_start (EV_A_ &once->to); |
1624 | ev_timer_start (EV_A_ &once->to); |
1442 | } |
1625 | } |
1443 | } |
1626 | } |
1444 | } |
1627 | } |
1445 | |
1628 | |
|
|
1629 | #ifdef __cplusplus |
|
|
1630 | } |
|
|
1631 | #endif |
|
|
1632 | |