… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
31 | #if EV_USE_CONFIG_H |
31 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
32 | # include "config.h" |
|
|
33 | |
|
|
34 | # if HAVE_CLOCK_GETTIME |
|
|
35 | # define EV_USE_MONOTONIC 1 |
|
|
36 | # define EV_USE_REALTIME 1 |
|
|
37 | # endif |
|
|
38 | |
|
|
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
40 | # define EV_USE_SELECT 1 |
|
|
41 | # endif |
|
|
42 | |
|
|
43 | # if HAVE_POLL && HAVE_POLL_H |
|
|
44 | # define EV_USE_POLL 1 |
|
|
45 | # endif |
|
|
46 | |
|
|
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
48 | # define EV_USE_EPOLL 1 |
|
|
49 | # endif |
|
|
50 | |
|
|
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
52 | # define EV_USE_KQUEUE 1 |
|
|
53 | # endif |
|
|
54 | |
33 | #endif |
55 | #endif |
34 | |
56 | |
35 | #include <math.h> |
57 | #include <math.h> |
36 | #include <stdlib.h> |
58 | #include <stdlib.h> |
37 | #include <unistd.h> |
59 | #include <unistd.h> |
… | |
… | |
42 | #include <stdio.h> |
64 | #include <stdio.h> |
43 | |
65 | |
44 | #include <assert.h> |
66 | #include <assert.h> |
45 | #include <errno.h> |
67 | #include <errno.h> |
46 | #include <sys/types.h> |
68 | #include <sys/types.h> |
|
|
69 | #ifndef WIN32 |
47 | #include <sys/wait.h> |
70 | # include <sys/wait.h> |
|
|
71 | #endif |
48 | #include <sys/time.h> |
72 | #include <sys/time.h> |
49 | #include <time.h> |
73 | #include <time.h> |
50 | |
74 | |
51 | /**/ |
75 | /**/ |
52 | |
76 | |
… | |
… | |
62 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
63 | #endif |
87 | #endif |
64 | |
88 | |
65 | #ifndef EV_USE_EPOLL |
89 | #ifndef EV_USE_EPOLL |
66 | # define EV_USE_EPOLL 0 |
90 | # define EV_USE_EPOLL 0 |
|
|
91 | #endif |
|
|
92 | |
|
|
93 | #ifndef EV_USE_KQUEUE |
|
|
94 | # define EV_USE_KQUEUE 0 |
|
|
95 | #endif |
|
|
96 | |
|
|
97 | #ifndef EV_USE_WIN32 |
|
|
98 | # ifdef WIN32 |
|
|
99 | # define EV_USE_WIN32 1 |
|
|
100 | # else |
|
|
101 | # define EV_USE_WIN32 0 |
|
|
102 | # endif |
67 | #endif |
103 | #endif |
68 | |
104 | |
69 | #ifndef EV_USE_REALTIME |
105 | #ifndef EV_USE_REALTIME |
70 | # define EV_USE_REALTIME 1 |
106 | # define EV_USE_REALTIME 1 |
71 | #endif |
107 | #endif |
… | |
… | |
100 | #endif |
136 | #endif |
101 | |
137 | |
102 | #define expect_false(expr) expect ((expr) != 0, 0) |
138 | #define expect_false(expr) expect ((expr) != 0, 0) |
103 | #define expect_true(expr) expect ((expr) != 0, 1) |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
104 | |
140 | |
|
|
141 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
142 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
|
|
143 | |
105 | typedef struct ev_watcher *W; |
144 | typedef struct ev_watcher *W; |
106 | typedef struct ev_watcher_list *WL; |
145 | typedef struct ev_watcher_list *WL; |
107 | typedef struct ev_watcher_time *WT; |
146 | typedef struct ev_watcher_time *WT; |
108 | |
147 | |
109 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
110 | ev_tstamp ev_now; |
|
|
111 | int ev_method; |
|
|
112 | |
149 | |
113 | static int have_monotonic; /* runtime */ |
150 | #if WIN32 |
114 | |
151 | /* note: the comment below could not be substantiated, but what would I care */ |
115 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
152 | /* MSDN says this is required to handle SIGFPE */ |
116 | static void (*method_modify)(int fd, int oev, int nev); |
153 | volatile double SIGFPE_REQ = 0.0f; |
117 | static void (*method_poll)(ev_tstamp timeout); |
154 | #endif |
118 | |
155 | |
119 | /*****************************************************************************/ |
156 | /*****************************************************************************/ |
120 | |
157 | |
121 | ev_tstamp |
158 | static void (*syserr_cb)(void); |
|
|
159 | |
|
|
160 | void ev_set_syserr_cb (void (*cb)(void)) |
|
|
161 | { |
|
|
162 | syserr_cb = cb; |
|
|
163 | } |
|
|
164 | |
|
|
165 | static void |
|
|
166 | syserr (void) |
|
|
167 | { |
|
|
168 | if (syserr_cb) |
|
|
169 | syserr_cb (); |
|
|
170 | else |
|
|
171 | { |
|
|
172 | perror ("libev"); |
|
|
173 | abort (); |
|
|
174 | } |
|
|
175 | } |
|
|
176 | |
|
|
177 | static void *(*alloc)(void *ptr, long size); |
|
|
178 | |
|
|
179 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
180 | { |
|
|
181 | alloc = cb; |
|
|
182 | } |
|
|
183 | |
|
|
184 | static void * |
|
|
185 | ev_realloc (void *ptr, long size) |
|
|
186 | { |
|
|
187 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
188 | |
|
|
189 | if (!ptr && size) |
|
|
190 | { |
|
|
191 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
192 | abort (); |
|
|
193 | } |
|
|
194 | |
|
|
195 | return ptr; |
|
|
196 | } |
|
|
197 | |
|
|
198 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
199 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
200 | |
|
|
201 | /*****************************************************************************/ |
|
|
202 | |
|
|
203 | typedef struct |
|
|
204 | { |
|
|
205 | WL head; |
|
|
206 | unsigned char events; |
|
|
207 | unsigned char reify; |
|
|
208 | } ANFD; |
|
|
209 | |
|
|
210 | typedef struct |
|
|
211 | { |
|
|
212 | W w; |
|
|
213 | int events; |
|
|
214 | } ANPENDING; |
|
|
215 | |
|
|
216 | #if EV_MULTIPLICITY |
|
|
217 | |
|
|
218 | struct ev_loop |
|
|
219 | { |
|
|
220 | # define VAR(name,decl) decl; |
|
|
221 | # include "ev_vars.h" |
|
|
222 | }; |
|
|
223 | # undef VAR |
|
|
224 | # include "ev_wrap.h" |
|
|
225 | |
|
|
226 | #else |
|
|
227 | |
|
|
228 | # define VAR(name,decl) static decl; |
|
|
229 | # include "ev_vars.h" |
|
|
230 | # undef VAR |
|
|
231 | |
|
|
232 | #endif |
|
|
233 | |
|
|
234 | /*****************************************************************************/ |
|
|
235 | |
|
|
236 | inline ev_tstamp |
122 | ev_time (void) |
237 | ev_time (void) |
123 | { |
238 | { |
124 | #if EV_USE_REALTIME |
239 | #if EV_USE_REALTIME |
125 | struct timespec ts; |
240 | struct timespec ts; |
126 | clock_gettime (CLOCK_REALTIME, &ts); |
241 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
130 | gettimeofday (&tv, 0); |
245 | gettimeofday (&tv, 0); |
131 | return tv.tv_sec + tv.tv_usec * 1e-6; |
246 | return tv.tv_sec + tv.tv_usec * 1e-6; |
132 | #endif |
247 | #endif |
133 | } |
248 | } |
134 | |
249 | |
135 | static ev_tstamp |
250 | inline ev_tstamp |
136 | get_clock (void) |
251 | get_clock (void) |
137 | { |
252 | { |
138 | #if EV_USE_MONOTONIC |
253 | #if EV_USE_MONOTONIC |
139 | if (expect_true (have_monotonic)) |
254 | if (expect_true (have_monotonic)) |
140 | { |
255 | { |
… | |
… | |
145 | #endif |
260 | #endif |
146 | |
261 | |
147 | return ev_time (); |
262 | return ev_time (); |
148 | } |
263 | } |
149 | |
264 | |
|
|
265 | ev_tstamp |
|
|
266 | ev_now (EV_P) |
|
|
267 | { |
|
|
268 | return rt_now; |
|
|
269 | } |
|
|
270 | |
150 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
271 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
151 | |
272 | |
152 | #define array_needsize(base,cur,cnt,init) \ |
273 | #define array_needsize(base,cur,cnt,init) \ |
153 | if (expect_false ((cnt) > cur)) \ |
274 | if (expect_false ((cnt) > cur)) \ |
154 | { \ |
275 | { \ |
155 | int newcnt = cur; \ |
276 | int newcnt = cur; \ |
156 | do \ |
277 | do \ |
157 | { \ |
278 | { \ |
158 | newcnt = array_roundsize (base, newcnt << 1); \ |
279 | newcnt = array_roundsize (base, newcnt << 1); \ |
159 | } \ |
280 | } \ |
160 | while ((cnt) > newcnt); \ |
281 | while ((cnt) > newcnt); \ |
161 | \ |
282 | \ |
162 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
283 | base = ev_realloc (base, sizeof (*base) * (newcnt)); \ |
163 | init (base + cur, newcnt - cur); \ |
284 | init (base + cur, newcnt - cur); \ |
164 | cur = newcnt; \ |
285 | cur = newcnt; \ |
165 | } |
286 | } |
|
|
287 | |
|
|
288 | #define array_slim(stem) \ |
|
|
289 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
290 | { \ |
|
|
291 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
292 | base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ |
|
|
293 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
294 | } |
|
|
295 | |
|
|
296 | #define array_free(stem, idx) \ |
|
|
297 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
166 | |
298 | |
167 | /*****************************************************************************/ |
299 | /*****************************************************************************/ |
168 | |
|
|
169 | typedef struct |
|
|
170 | { |
|
|
171 | struct ev_io *head; |
|
|
172 | unsigned char events; |
|
|
173 | unsigned char reify; |
|
|
174 | } ANFD; |
|
|
175 | |
|
|
176 | static ANFD *anfds; |
|
|
177 | static int anfdmax; |
|
|
178 | |
300 | |
179 | static void |
301 | static void |
180 | anfds_init (ANFD *base, int count) |
302 | anfds_init (ANFD *base, int count) |
181 | { |
303 | { |
182 | while (count--) |
304 | while (count--) |
… | |
… | |
187 | |
309 | |
188 | ++base; |
310 | ++base; |
189 | } |
311 | } |
190 | } |
312 | } |
191 | |
313 | |
192 | typedef struct |
|
|
193 | { |
|
|
194 | W w; |
|
|
195 | int events; |
|
|
196 | } ANPENDING; |
|
|
197 | |
|
|
198 | static ANPENDING *pendings; |
|
|
199 | static int pendingmax, pendingcnt; |
|
|
200 | |
|
|
201 | static void |
314 | static void |
202 | event (W w, int events) |
315 | event (EV_P_ W w, int events) |
203 | { |
316 | { |
204 | if (w->pending) |
317 | if (w->pending) |
205 | { |
318 | { |
206 | pendings [w->pending - 1].events |= events; |
319 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
207 | return; |
320 | return; |
208 | } |
321 | } |
209 | |
322 | |
210 | w->pending = ++pendingcnt; |
323 | w->pending = ++pendingcnt [ABSPRI (w)]; |
211 | array_needsize (pendings, pendingmax, pendingcnt, ); |
324 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
212 | pendings [pendingcnt - 1].w = w; |
325 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
213 | pendings [pendingcnt - 1].events = events; |
326 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
214 | } |
327 | } |
215 | |
328 | |
216 | static void |
329 | static void |
217 | queue_events (W *events, int eventcnt, int type) |
330 | queue_events (EV_P_ W *events, int eventcnt, int type) |
218 | { |
331 | { |
219 | int i; |
332 | int i; |
220 | |
333 | |
221 | for (i = 0; i < eventcnt; ++i) |
334 | for (i = 0; i < eventcnt; ++i) |
222 | event (events [i], type); |
335 | event (EV_A_ events [i], type); |
223 | } |
336 | } |
224 | |
337 | |
225 | static void |
338 | static void |
226 | fd_event (int fd, int events) |
339 | fd_event (EV_P_ int fd, int events) |
227 | { |
340 | { |
228 | ANFD *anfd = anfds + fd; |
341 | ANFD *anfd = anfds + fd; |
229 | struct ev_io *w; |
342 | struct ev_io *w; |
230 | |
343 | |
231 | for (w = anfd->head; w; w = w->next) |
344 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
232 | { |
345 | { |
233 | int ev = w->events & events; |
346 | int ev = w->events & events; |
234 | |
347 | |
235 | if (ev) |
348 | if (ev) |
236 | event ((W)w, ev); |
349 | event (EV_A_ (W)w, ev); |
237 | } |
350 | } |
238 | } |
351 | } |
239 | |
352 | |
240 | /*****************************************************************************/ |
353 | /*****************************************************************************/ |
241 | |
354 | |
242 | static int *fdchanges; |
|
|
243 | static int fdchangemax, fdchangecnt; |
|
|
244 | |
|
|
245 | static void |
355 | static void |
246 | fd_reify (void) |
356 | fd_reify (EV_P) |
247 | { |
357 | { |
248 | int i; |
358 | int i; |
249 | |
359 | |
250 | for (i = 0; i < fdchangecnt; ++i) |
360 | for (i = 0; i < fdchangecnt; ++i) |
251 | { |
361 | { |
… | |
… | |
253 | ANFD *anfd = anfds + fd; |
363 | ANFD *anfd = anfds + fd; |
254 | struct ev_io *w; |
364 | struct ev_io *w; |
255 | |
365 | |
256 | int events = 0; |
366 | int events = 0; |
257 | |
367 | |
258 | for (w = anfd->head; w; w = w->next) |
368 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
259 | events |= w->events; |
369 | events |= w->events; |
260 | |
370 | |
261 | anfd->reify = 0; |
371 | anfd->reify = 0; |
262 | |
372 | |
263 | if (anfd->events != events) |
|
|
264 | { |
|
|
265 | method_modify (fd, anfd->events, events); |
373 | method_modify (EV_A_ fd, anfd->events, events); |
266 | anfd->events = events; |
374 | anfd->events = events; |
267 | } |
|
|
268 | } |
375 | } |
269 | |
376 | |
270 | fdchangecnt = 0; |
377 | fdchangecnt = 0; |
271 | } |
378 | } |
272 | |
379 | |
273 | static void |
380 | static void |
274 | fd_change (int fd) |
381 | fd_change (EV_P_ int fd) |
275 | { |
382 | { |
276 | if (anfds [fd].reify || fdchangecnt < 0) |
383 | if (anfds [fd].reify || fdchangecnt < 0) |
277 | return; |
384 | return; |
278 | |
385 | |
279 | anfds [fd].reify = 1; |
386 | anfds [fd].reify = 1; |
… | |
… | |
282 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
389 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
283 | fdchanges [fdchangecnt - 1] = fd; |
390 | fdchanges [fdchangecnt - 1] = fd; |
284 | } |
391 | } |
285 | |
392 | |
286 | static void |
393 | static void |
287 | fd_kill (int fd) |
394 | fd_kill (EV_P_ int fd) |
288 | { |
395 | { |
289 | struct ev_io *w; |
396 | struct ev_io *w; |
290 | |
397 | |
291 | printf ("killing fd %d\n", fd);//D |
|
|
292 | while ((w = anfds [fd].head)) |
398 | while ((w = (struct ev_io *)anfds [fd].head)) |
293 | { |
399 | { |
294 | ev_io_stop (w); |
400 | ev_io_stop (EV_A_ w); |
295 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
401 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
296 | } |
402 | } |
297 | } |
403 | } |
298 | |
404 | |
299 | /* called on EBADF to verify fds */ |
405 | /* called on EBADF to verify fds */ |
300 | static void |
406 | static void |
301 | fd_ebadf (void) |
407 | fd_ebadf (EV_P) |
302 | { |
408 | { |
303 | int fd; |
409 | int fd; |
304 | |
410 | |
305 | for (fd = 0; fd < anfdmax; ++fd) |
411 | for (fd = 0; fd < anfdmax; ++fd) |
306 | if (anfds [fd].events) |
412 | if (anfds [fd].events) |
307 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
413 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
308 | fd_kill (fd); |
414 | fd_kill (EV_A_ fd); |
309 | } |
415 | } |
310 | |
416 | |
311 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
417 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
312 | static void |
418 | static void |
313 | fd_enomem (void) |
419 | fd_enomem (EV_P) |
314 | { |
420 | { |
315 | int fd = anfdmax; |
421 | int fd; |
316 | |
422 | |
317 | while (fd--) |
423 | for (fd = anfdmax; fd--; ) |
318 | if (anfds [fd].events) |
424 | if (anfds [fd].events) |
319 | { |
425 | { |
320 | close (fd); |
|
|
321 | fd_kill (fd); |
426 | fd_kill (EV_A_ fd); |
322 | return; |
427 | return; |
323 | } |
428 | } |
324 | } |
429 | } |
325 | |
430 | |
|
|
431 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
|
|
432 | static void |
|
|
433 | fd_rearm_all (EV_P) |
|
|
434 | { |
|
|
435 | int fd; |
|
|
436 | |
|
|
437 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
438 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
439 | if (anfds [fd].events) |
|
|
440 | { |
|
|
441 | anfds [fd].events = 0; |
|
|
442 | fd_change (EV_A_ fd); |
|
|
443 | } |
|
|
444 | } |
|
|
445 | |
326 | /*****************************************************************************/ |
446 | /*****************************************************************************/ |
327 | |
447 | |
328 | static struct ev_timer **timers; |
|
|
329 | static int timermax, timercnt; |
|
|
330 | |
|
|
331 | static struct ev_periodic **periodics; |
|
|
332 | static int periodicmax, periodiccnt; |
|
|
333 | |
|
|
334 | static void |
448 | static void |
335 | upheap (WT *timers, int k) |
449 | upheap (WT *heap, int k) |
336 | { |
450 | { |
337 | WT w = timers [k]; |
451 | WT w = heap [k]; |
338 | |
452 | |
339 | while (k && timers [k >> 1]->at > w->at) |
453 | while (k && heap [k >> 1]->at > w->at) |
340 | { |
454 | { |
341 | timers [k] = timers [k >> 1]; |
455 | heap [k] = heap [k >> 1]; |
342 | timers [k]->active = k + 1; |
456 | ((W)heap [k])->active = k + 1; |
343 | k >>= 1; |
457 | k >>= 1; |
344 | } |
458 | } |
345 | |
459 | |
346 | timers [k] = w; |
460 | heap [k] = w; |
347 | timers [k]->active = k + 1; |
461 | ((W)heap [k])->active = k + 1; |
348 | |
462 | |
349 | } |
463 | } |
350 | |
464 | |
351 | static void |
465 | static void |
352 | downheap (WT *timers, int N, int k) |
466 | downheap (WT *heap, int N, int k) |
353 | { |
467 | { |
354 | WT w = timers [k]; |
468 | WT w = heap [k]; |
355 | |
469 | |
356 | while (k < (N >> 1)) |
470 | while (k < (N >> 1)) |
357 | { |
471 | { |
358 | int j = k << 1; |
472 | int j = k << 1; |
359 | |
473 | |
360 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
474 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
361 | ++j; |
475 | ++j; |
362 | |
476 | |
363 | if (w->at <= timers [j]->at) |
477 | if (w->at <= heap [j]->at) |
364 | break; |
478 | break; |
365 | |
479 | |
366 | timers [k] = timers [j]; |
480 | heap [k] = heap [j]; |
367 | timers [k]->active = k + 1; |
481 | ((W)heap [k])->active = k + 1; |
368 | k = j; |
482 | k = j; |
369 | } |
483 | } |
370 | |
484 | |
371 | timers [k] = w; |
485 | heap [k] = w; |
372 | timers [k]->active = k + 1; |
486 | ((W)heap [k])->active = k + 1; |
373 | } |
487 | } |
374 | |
488 | |
375 | /*****************************************************************************/ |
489 | /*****************************************************************************/ |
376 | |
490 | |
377 | typedef struct |
491 | typedef struct |
378 | { |
492 | { |
379 | struct ev_signal *head; |
493 | WL head; |
380 | sig_atomic_t volatile gotsig; |
494 | sig_atomic_t volatile gotsig; |
381 | } ANSIG; |
495 | } ANSIG; |
382 | |
496 | |
383 | static ANSIG *signals; |
497 | static ANSIG *signals; |
384 | static int signalmax; |
498 | static int signalmax; |
… | |
… | |
400 | } |
514 | } |
401 | |
515 | |
402 | static void |
516 | static void |
403 | sighandler (int signum) |
517 | sighandler (int signum) |
404 | { |
518 | { |
|
|
519 | #if WIN32 |
|
|
520 | signal (signum, sighandler); |
|
|
521 | #endif |
|
|
522 | |
405 | signals [signum - 1].gotsig = 1; |
523 | signals [signum - 1].gotsig = 1; |
406 | |
524 | |
407 | if (!gotsig) |
525 | if (!gotsig) |
408 | { |
526 | { |
|
|
527 | int old_errno = errno; |
409 | gotsig = 1; |
528 | gotsig = 1; |
410 | write (sigpipe [1], &signum, 1); |
529 | write (sigpipe [1], &signum, 1); |
|
|
530 | errno = old_errno; |
411 | } |
531 | } |
412 | } |
532 | } |
413 | |
533 | |
414 | static void |
534 | static void |
415 | sigcb (struct ev_io *iow, int revents) |
535 | sigcb (EV_P_ struct ev_io *iow, int revents) |
416 | { |
536 | { |
417 | struct ev_signal *w; |
537 | WL w; |
418 | int signum; |
538 | int signum; |
419 | |
539 | |
420 | read (sigpipe [0], &revents, 1); |
540 | read (sigpipe [0], &revents, 1); |
421 | gotsig = 0; |
541 | gotsig = 0; |
422 | |
542 | |
… | |
… | |
424 | if (signals [signum].gotsig) |
544 | if (signals [signum].gotsig) |
425 | { |
545 | { |
426 | signals [signum].gotsig = 0; |
546 | signals [signum].gotsig = 0; |
427 | |
547 | |
428 | for (w = signals [signum].head; w; w = w->next) |
548 | for (w = signals [signum].head; w; w = w->next) |
429 | event ((W)w, EV_SIGNAL); |
549 | event (EV_A_ (W)w, EV_SIGNAL); |
430 | } |
550 | } |
431 | } |
551 | } |
432 | |
552 | |
433 | static void |
553 | static void |
434 | siginit (void) |
554 | siginit (EV_P) |
435 | { |
555 | { |
|
|
556 | #ifndef WIN32 |
436 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
557 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
437 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
558 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
438 | |
559 | |
439 | /* rather than sort out wether we really need nb, set it */ |
560 | /* rather than sort out wether we really need nb, set it */ |
440 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
561 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
441 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
562 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
563 | #endif |
442 | |
564 | |
443 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
565 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
444 | ev_io_start (&sigev); |
566 | ev_io_start (EV_A_ &sigev); |
|
|
567 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
445 | } |
568 | } |
446 | |
569 | |
447 | /*****************************************************************************/ |
570 | /*****************************************************************************/ |
448 | |
571 | |
449 | static struct ev_idle **idles; |
572 | #ifndef WIN32 |
450 | static int idlemax, idlecnt; |
|
|
451 | |
|
|
452 | static struct ev_prepare **prepares; |
|
|
453 | static int preparemax, preparecnt; |
|
|
454 | |
|
|
455 | static struct ev_check **checks; |
|
|
456 | static int checkmax, checkcnt; |
|
|
457 | |
|
|
458 | /*****************************************************************************/ |
|
|
459 | |
573 | |
460 | static struct ev_child *childs [PID_HASHSIZE]; |
574 | static struct ev_child *childs [PID_HASHSIZE]; |
461 | static struct ev_signal childev; |
575 | static struct ev_signal childev; |
462 | |
576 | |
463 | #ifndef WCONTINUED |
577 | #ifndef WCONTINUED |
464 | # define WCONTINUED 0 |
578 | # define WCONTINUED 0 |
465 | #endif |
579 | #endif |
466 | |
580 | |
467 | static void |
581 | static void |
468 | childcb (struct ev_signal *sw, int revents) |
582 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
469 | { |
583 | { |
470 | struct ev_child *w; |
584 | struct ev_child *w; |
|
|
585 | |
|
|
586 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
587 | if (w->pid == pid || !w->pid) |
|
|
588 | { |
|
|
589 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
590 | w->rpid = pid; |
|
|
591 | w->rstatus = status; |
|
|
592 | event (EV_A_ (W)w, EV_CHILD); |
|
|
593 | } |
|
|
594 | } |
|
|
595 | |
|
|
596 | static void |
|
|
597 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
598 | { |
471 | int pid, status; |
599 | int pid, status; |
472 | |
600 | |
473 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
601 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
474 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
602 | { |
475 | if (w->pid == pid || !w->pid) |
603 | /* make sure we are called again until all childs have been reaped */ |
476 | { |
604 | event (EV_A_ (W)sw, EV_SIGNAL); |
477 | w->status = status; |
605 | |
478 | event ((W)w, EV_CHILD); |
606 | child_reap (EV_A_ sw, pid, pid, status); |
479 | } |
607 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
|
|
608 | } |
480 | } |
609 | } |
|
|
610 | |
|
|
611 | #endif |
481 | |
612 | |
482 | /*****************************************************************************/ |
613 | /*****************************************************************************/ |
483 | |
614 | |
|
|
615 | #if EV_USE_KQUEUE |
|
|
616 | # include "ev_kqueue.c" |
|
|
617 | #endif |
484 | #if EV_USE_EPOLL |
618 | #if EV_USE_EPOLL |
485 | # include "ev_epoll.c" |
619 | # include "ev_epoll.c" |
486 | #endif |
620 | #endif |
487 | #if EV_USE_POLL |
621 | #if EV_USE_POLL |
488 | # include "ev_poll.c" |
622 | # include "ev_poll.c" |
… | |
… | |
501 | ev_version_minor (void) |
635 | ev_version_minor (void) |
502 | { |
636 | { |
503 | return EV_VERSION_MINOR; |
637 | return EV_VERSION_MINOR; |
504 | } |
638 | } |
505 | |
639 | |
506 | /* return true if we are running with elevated privileges and ignore env variables */ |
640 | /* return true if we are running with elevated privileges and should ignore env variables */ |
507 | static int |
641 | static int |
508 | enable_secure () |
642 | enable_secure (void) |
509 | { |
643 | { |
|
|
644 | #ifdef WIN32 |
|
|
645 | return 0; |
|
|
646 | #else |
510 | return getuid () != geteuid () |
647 | return getuid () != geteuid () |
511 | || getgid () != getegid (); |
648 | || getgid () != getegid (); |
|
|
649 | #endif |
512 | } |
650 | } |
513 | |
651 | |
514 | int ev_init (int methods) |
652 | int |
|
|
653 | ev_method (EV_P) |
515 | { |
654 | { |
|
|
655 | return method; |
|
|
656 | } |
|
|
657 | |
|
|
658 | static void |
|
|
659 | loop_init (EV_P_ int methods) |
|
|
660 | { |
516 | if (!ev_method) |
661 | if (!method) |
517 | { |
662 | { |
518 | #if EV_USE_MONOTONIC |
663 | #if EV_USE_MONOTONIC |
519 | { |
664 | { |
520 | struct timespec ts; |
665 | struct timespec ts; |
521 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
666 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
522 | have_monotonic = 1; |
667 | have_monotonic = 1; |
523 | } |
668 | } |
524 | #endif |
669 | #endif |
525 | |
670 | |
526 | ev_now = ev_time (); |
671 | rt_now = ev_time (); |
527 | now = get_clock (); |
672 | mn_now = get_clock (); |
528 | now_floor = now; |
673 | now_floor = mn_now; |
529 | diff = ev_now - now; |
674 | rtmn_diff = rt_now - mn_now; |
530 | |
|
|
531 | if (pipe (sigpipe)) |
|
|
532 | return 0; |
|
|
533 | |
675 | |
534 | if (methods == EVMETHOD_AUTO) |
676 | if (methods == EVMETHOD_AUTO) |
535 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
677 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
536 | methods = atoi (getenv ("LIBEV_METHODS")); |
678 | methods = atoi (getenv ("LIBEV_METHODS")); |
537 | else |
679 | else |
538 | methods = EVMETHOD_ANY; |
680 | methods = EVMETHOD_ANY; |
539 | |
681 | |
540 | ev_method = 0; |
682 | method = 0; |
|
|
683 | #if EV_USE_WIN32 |
|
|
684 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
|
|
685 | #endif |
|
|
686 | #if EV_USE_KQUEUE |
|
|
687 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
|
|
688 | #endif |
541 | #if EV_USE_EPOLL |
689 | #if EV_USE_EPOLL |
542 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
690 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
543 | #endif |
691 | #endif |
544 | #if EV_USE_POLL |
692 | #if EV_USE_POLL |
545 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
693 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
546 | #endif |
694 | #endif |
547 | #if EV_USE_SELECT |
695 | #if EV_USE_SELECT |
548 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
696 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
549 | #endif |
697 | #endif |
|
|
698 | } |
|
|
699 | } |
550 | |
700 | |
|
|
701 | void |
|
|
702 | loop_destroy (EV_P) |
|
|
703 | { |
|
|
704 | int i; |
|
|
705 | |
|
|
706 | #if EV_USE_WIN32 |
|
|
707 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
|
|
708 | #endif |
|
|
709 | #if EV_USE_KQUEUE |
|
|
710 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
711 | #endif |
|
|
712 | #if EV_USE_EPOLL |
|
|
713 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
714 | #endif |
|
|
715 | #if EV_USE_POLL |
|
|
716 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
717 | #endif |
|
|
718 | #if EV_USE_SELECT |
|
|
719 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | for (i = NUMPRI; i--; ) |
|
|
723 | array_free (pending, [i]); |
|
|
724 | |
|
|
725 | array_free (fdchange, ); |
|
|
726 | array_free (timer, ); |
|
|
727 | array_free (periodic, ); |
|
|
728 | array_free (idle, ); |
|
|
729 | array_free (prepare, ); |
|
|
730 | array_free (check, ); |
|
|
731 | |
|
|
732 | method = 0; |
|
|
733 | /*TODO*/ |
|
|
734 | } |
|
|
735 | |
|
|
736 | void |
|
|
737 | loop_fork (EV_P) |
|
|
738 | { |
|
|
739 | /*TODO*/ |
|
|
740 | #if EV_USE_EPOLL |
|
|
741 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
742 | #endif |
|
|
743 | #if EV_USE_KQUEUE |
|
|
744 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
745 | #endif |
|
|
746 | } |
|
|
747 | |
|
|
748 | #if EV_MULTIPLICITY |
|
|
749 | struct ev_loop * |
|
|
750 | ev_loop_new (int methods) |
|
|
751 | { |
|
|
752 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
753 | |
|
|
754 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
755 | |
|
|
756 | loop_init (EV_A_ methods); |
|
|
757 | |
|
|
758 | if (ev_method (EV_A)) |
|
|
759 | return loop; |
|
|
760 | |
|
|
761 | return 0; |
|
|
762 | } |
|
|
763 | |
|
|
764 | void |
|
|
765 | ev_loop_destroy (EV_P) |
|
|
766 | { |
|
|
767 | loop_destroy (EV_A); |
|
|
768 | ev_free (loop); |
|
|
769 | } |
|
|
770 | |
|
|
771 | void |
|
|
772 | ev_loop_fork (EV_P) |
|
|
773 | { |
|
|
774 | loop_fork (EV_A); |
|
|
775 | } |
|
|
776 | |
|
|
777 | #endif |
|
|
778 | |
|
|
779 | #if EV_MULTIPLICITY |
|
|
780 | struct ev_loop default_loop_struct; |
|
|
781 | static struct ev_loop *default_loop; |
|
|
782 | |
|
|
783 | struct ev_loop * |
|
|
784 | #else |
|
|
785 | static int default_loop; |
|
|
786 | |
|
|
787 | int |
|
|
788 | #endif |
|
|
789 | ev_default_loop (int methods) |
|
|
790 | { |
|
|
791 | if (sigpipe [0] == sigpipe [1]) |
|
|
792 | if (pipe (sigpipe)) |
|
|
793 | return 0; |
|
|
794 | |
|
|
795 | if (!default_loop) |
|
|
796 | { |
|
|
797 | #if EV_MULTIPLICITY |
|
|
798 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
799 | #else |
|
|
800 | default_loop = 1; |
|
|
801 | #endif |
|
|
802 | |
|
|
803 | loop_init (EV_A_ methods); |
|
|
804 | |
551 | if (ev_method) |
805 | if (ev_method (EV_A)) |
552 | { |
806 | { |
553 | ev_watcher_init (&sigev, sigcb); |
807 | ev_watcher_init (&sigev, sigcb); |
|
|
808 | ev_set_priority (&sigev, EV_MAXPRI); |
554 | siginit (); |
809 | siginit (EV_A); |
555 | |
810 | |
|
|
811 | #ifndef WIN32 |
556 | ev_signal_init (&childev, childcb, SIGCHLD); |
812 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
813 | ev_set_priority (&childev, EV_MAXPRI); |
557 | ev_signal_start (&childev); |
814 | ev_signal_start (EV_A_ &childev); |
|
|
815 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
816 | #endif |
558 | } |
817 | } |
|
|
818 | else |
|
|
819 | default_loop = 0; |
559 | } |
820 | } |
560 | |
821 | |
561 | return ev_method; |
822 | return default_loop; |
562 | } |
823 | } |
563 | |
824 | |
564 | /*****************************************************************************/ |
|
|
565 | |
|
|
566 | void |
825 | void |
567 | ev_fork_prepare (void) |
826 | ev_default_destroy (void) |
568 | { |
827 | { |
569 | /* nop */ |
828 | #if EV_MULTIPLICITY |
570 | } |
829 | struct ev_loop *loop = default_loop; |
571 | |
|
|
572 | void |
|
|
573 | ev_fork_parent (void) |
|
|
574 | { |
|
|
575 | /* nop */ |
|
|
576 | } |
|
|
577 | |
|
|
578 | void |
|
|
579 | ev_fork_child (void) |
|
|
580 | { |
|
|
581 | #if EV_USE_EPOLL |
|
|
582 | if (ev_method == EVMETHOD_EPOLL) |
|
|
583 | epoll_postfork_child (); |
|
|
584 | #endif |
830 | #endif |
585 | |
831 | |
|
|
832 | ev_ref (EV_A); /* child watcher */ |
|
|
833 | ev_signal_stop (EV_A_ &childev); |
|
|
834 | |
|
|
835 | ev_ref (EV_A); /* signal watcher */ |
586 | ev_io_stop (&sigev); |
836 | ev_io_stop (EV_A_ &sigev); |
|
|
837 | |
|
|
838 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
839 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
840 | |
|
|
841 | loop_destroy (EV_A); |
|
|
842 | } |
|
|
843 | |
|
|
844 | void |
|
|
845 | ev_default_fork (void) |
|
|
846 | { |
|
|
847 | #if EV_MULTIPLICITY |
|
|
848 | struct ev_loop *loop = default_loop; |
|
|
849 | #endif |
|
|
850 | |
|
|
851 | loop_fork (EV_A); |
|
|
852 | |
|
|
853 | ev_io_stop (EV_A_ &sigev); |
587 | close (sigpipe [0]); |
854 | close (sigpipe [0]); |
588 | close (sigpipe [1]); |
855 | close (sigpipe [1]); |
589 | pipe (sigpipe); |
856 | pipe (sigpipe); |
|
|
857 | |
|
|
858 | ev_ref (EV_A); /* signal watcher */ |
590 | siginit (); |
859 | siginit (EV_A); |
591 | } |
860 | } |
592 | |
861 | |
593 | /*****************************************************************************/ |
862 | /*****************************************************************************/ |
594 | |
863 | |
595 | static void |
864 | static void |
596 | call_pending (void) |
865 | call_pending (EV_P) |
597 | { |
866 | { |
|
|
867 | int pri; |
|
|
868 | |
|
|
869 | for (pri = NUMPRI; pri--; ) |
598 | while (pendingcnt) |
870 | while (pendingcnt [pri]) |
599 | { |
871 | { |
600 | ANPENDING *p = pendings + --pendingcnt; |
872 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
601 | |
873 | |
602 | if (p->w) |
874 | if (p->w) |
603 | { |
875 | { |
604 | p->w->pending = 0; |
876 | p->w->pending = 0; |
605 | p->w->cb (p->w, p->events); |
877 | p->w->cb (EV_A_ p->w, p->events); |
606 | } |
878 | } |
607 | } |
879 | } |
608 | } |
880 | } |
609 | |
881 | |
610 | static void |
882 | static void |
611 | timers_reify (void) |
883 | timers_reify (EV_P) |
612 | { |
884 | { |
613 | while (timercnt && timers [0]->at <= now) |
885 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
614 | { |
886 | { |
615 | struct ev_timer *w = timers [0]; |
887 | struct ev_timer *w = timers [0]; |
|
|
888 | |
|
|
889 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
616 | |
890 | |
617 | /* first reschedule or stop timer */ |
891 | /* first reschedule or stop timer */ |
618 | if (w->repeat) |
892 | if (w->repeat) |
619 | { |
893 | { |
620 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
894 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
621 | w->at = now + w->repeat; |
895 | ((WT)w)->at = mn_now + w->repeat; |
622 | downheap ((WT *)timers, timercnt, 0); |
896 | downheap ((WT *)timers, timercnt, 0); |
623 | } |
897 | } |
624 | else |
898 | else |
625 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
899 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
626 | |
900 | |
627 | event ((W)w, EV_TIMEOUT); |
901 | event (EV_A_ (W)w, EV_TIMEOUT); |
628 | } |
902 | } |
629 | } |
903 | } |
630 | |
904 | |
631 | static void |
905 | static void |
632 | periodics_reify (void) |
906 | periodics_reify (EV_P) |
633 | { |
907 | { |
634 | while (periodiccnt && periodics [0]->at <= ev_now) |
908 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
635 | { |
909 | { |
636 | struct ev_periodic *w = periodics [0]; |
910 | struct ev_periodic *w = periodics [0]; |
|
|
911 | |
|
|
912 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
637 | |
913 | |
638 | /* first reschedule or stop timer */ |
914 | /* first reschedule or stop timer */ |
639 | if (w->interval) |
915 | if (w->interval) |
640 | { |
916 | { |
641 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
917 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
642 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
918 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
643 | downheap ((WT *)periodics, periodiccnt, 0); |
919 | downheap ((WT *)periodics, periodiccnt, 0); |
644 | } |
920 | } |
645 | else |
921 | else |
646 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
922 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
647 | |
923 | |
648 | event ((W)w, EV_PERIODIC); |
924 | event (EV_A_ (W)w, EV_PERIODIC); |
649 | } |
925 | } |
650 | } |
926 | } |
651 | |
927 | |
652 | static void |
928 | static void |
653 | periodics_reschedule (ev_tstamp diff) |
929 | periodics_reschedule (EV_P) |
654 | { |
930 | { |
655 | int i; |
931 | int i; |
656 | |
932 | |
657 | /* adjust periodics after time jump */ |
933 | /* adjust periodics after time jump */ |
658 | for (i = 0; i < periodiccnt; ++i) |
934 | for (i = 0; i < periodiccnt; ++i) |
659 | { |
935 | { |
660 | struct ev_periodic *w = periodics [i]; |
936 | struct ev_periodic *w = periodics [i]; |
661 | |
937 | |
662 | if (w->interval) |
938 | if (w->interval) |
663 | { |
939 | { |
664 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
940 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
665 | |
941 | |
666 | if (fabs (diff) >= 1e-4) |
942 | if (fabs (diff) >= 1e-4) |
667 | { |
943 | { |
668 | ev_periodic_stop (w); |
944 | ev_periodic_stop (EV_A_ w); |
669 | ev_periodic_start (w); |
945 | ev_periodic_start (EV_A_ w); |
670 | |
946 | |
671 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
947 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
672 | } |
948 | } |
673 | } |
949 | } |
674 | } |
950 | } |
675 | } |
951 | } |
676 | |
952 | |
677 | static int |
953 | inline int |
678 | time_update_monotonic (void) |
954 | time_update_monotonic (EV_P) |
679 | { |
955 | { |
680 | now = get_clock (); |
956 | mn_now = get_clock (); |
681 | |
957 | |
682 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
958 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
683 | { |
959 | { |
684 | ev_now = now + diff; |
960 | rt_now = rtmn_diff + mn_now; |
685 | return 0; |
961 | return 0; |
686 | } |
962 | } |
687 | else |
963 | else |
688 | { |
964 | { |
689 | now_floor = now; |
965 | now_floor = mn_now; |
690 | ev_now = ev_time (); |
966 | rt_now = ev_time (); |
691 | return 1; |
967 | return 1; |
692 | } |
968 | } |
693 | } |
969 | } |
694 | |
970 | |
695 | static void |
971 | static void |
696 | time_update (void) |
972 | time_update (EV_P) |
697 | { |
973 | { |
698 | int i; |
974 | int i; |
699 | |
975 | |
700 | #if EV_USE_MONOTONIC |
976 | #if EV_USE_MONOTONIC |
701 | if (expect_true (have_monotonic)) |
977 | if (expect_true (have_monotonic)) |
702 | { |
978 | { |
703 | if (time_update_monotonic ()) |
979 | if (time_update_monotonic (EV_A)) |
704 | { |
980 | { |
705 | ev_tstamp odiff = diff; |
981 | ev_tstamp odiff = rtmn_diff; |
706 | |
982 | |
707 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
983 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
708 | { |
984 | { |
709 | diff = ev_now - now; |
985 | rtmn_diff = rt_now - mn_now; |
710 | |
986 | |
711 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
987 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
712 | return; /* all is well */ |
988 | return; /* all is well */ |
713 | |
989 | |
714 | ev_now = ev_time (); |
990 | rt_now = ev_time (); |
715 | now = get_clock (); |
991 | mn_now = get_clock (); |
716 | now_floor = now; |
992 | now_floor = mn_now; |
717 | } |
993 | } |
718 | |
994 | |
719 | periodics_reschedule (diff - odiff); |
995 | periodics_reschedule (EV_A); |
720 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
996 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
997 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
721 | } |
998 | } |
722 | } |
999 | } |
723 | else |
1000 | else |
724 | #endif |
1001 | #endif |
725 | { |
1002 | { |
726 | ev_now = ev_time (); |
1003 | rt_now = ev_time (); |
727 | |
1004 | |
728 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1005 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
729 | { |
1006 | { |
730 | periodics_reschedule (ev_now - now); |
1007 | periodics_reschedule (EV_A); |
731 | |
1008 | |
732 | /* adjust timers. this is easy, as the offset is the same for all */ |
1009 | /* adjust timers. this is easy, as the offset is the same for all */ |
733 | for (i = 0; i < timercnt; ++i) |
1010 | for (i = 0; i < timercnt; ++i) |
734 | timers [i]->at += diff; |
1011 | ((WT)timers [i])->at += rt_now - mn_now; |
735 | } |
1012 | } |
736 | |
1013 | |
737 | now = ev_now; |
1014 | mn_now = rt_now; |
738 | } |
1015 | } |
739 | } |
1016 | } |
740 | |
1017 | |
741 | int ev_loop_done; |
1018 | void |
|
|
1019 | ev_ref (EV_P) |
|
|
1020 | { |
|
|
1021 | ++activecnt; |
|
|
1022 | } |
742 | |
1023 | |
|
|
1024 | void |
|
|
1025 | ev_unref (EV_P) |
|
|
1026 | { |
|
|
1027 | --activecnt; |
|
|
1028 | } |
|
|
1029 | |
|
|
1030 | static int loop_done; |
|
|
1031 | |
|
|
1032 | void |
743 | void ev_loop (int flags) |
1033 | ev_loop (EV_P_ int flags) |
744 | { |
1034 | { |
745 | double block; |
1035 | double block; |
746 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1036 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
747 | |
1037 | |
748 | do |
1038 | do |
749 | { |
1039 | { |
750 | /* queue check watchers (and execute them) */ |
1040 | /* queue check watchers (and execute them) */ |
751 | if (expect_false (preparecnt)) |
1041 | if (expect_false (preparecnt)) |
752 | { |
1042 | { |
753 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1043 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
754 | call_pending (); |
1044 | call_pending (EV_A); |
755 | } |
1045 | } |
756 | |
1046 | |
757 | /* update fd-related kernel structures */ |
1047 | /* update fd-related kernel structures */ |
758 | fd_reify (); |
1048 | fd_reify (EV_A); |
759 | |
1049 | |
760 | /* calculate blocking time */ |
1050 | /* calculate blocking time */ |
761 | |
1051 | |
762 | /* we only need this for !monotonic clockor timers, but as we basically |
1052 | /* we only need this for !monotonic clockor timers, but as we basically |
763 | always have timers, we just calculate it always */ |
1053 | always have timers, we just calculate it always */ |
764 | #if EV_USE_MONOTONIC |
1054 | #if EV_USE_MONOTONIC |
765 | if (expect_true (have_monotonic)) |
1055 | if (expect_true (have_monotonic)) |
766 | time_update_monotonic (); |
1056 | time_update_monotonic (EV_A); |
767 | else |
1057 | else |
768 | #endif |
1058 | #endif |
769 | { |
1059 | { |
770 | ev_now = ev_time (); |
1060 | rt_now = ev_time (); |
771 | now = ev_now; |
1061 | mn_now = rt_now; |
772 | } |
1062 | } |
773 | |
1063 | |
774 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1064 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
775 | block = 0.; |
1065 | block = 0.; |
776 | else |
1066 | else |
777 | { |
1067 | { |
778 | block = MAX_BLOCKTIME; |
1068 | block = MAX_BLOCKTIME; |
779 | |
1069 | |
780 | if (timercnt) |
1070 | if (timercnt) |
781 | { |
1071 | { |
782 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1072 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
783 | if (block > to) block = to; |
1073 | if (block > to) block = to; |
784 | } |
1074 | } |
785 | |
1075 | |
786 | if (periodiccnt) |
1076 | if (periodiccnt) |
787 | { |
1077 | { |
788 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1078 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
789 | if (block > to) block = to; |
1079 | if (block > to) block = to; |
790 | } |
1080 | } |
791 | |
1081 | |
792 | if (block < 0.) block = 0.; |
1082 | if (block < 0.) block = 0.; |
793 | } |
1083 | } |
794 | |
1084 | |
795 | method_poll (block); |
1085 | method_poll (EV_A_ block); |
796 | |
1086 | |
797 | /* update ev_now, do magic */ |
1087 | /* update rt_now, do magic */ |
798 | time_update (); |
1088 | time_update (EV_A); |
799 | |
1089 | |
800 | /* queue pending timers and reschedule them */ |
1090 | /* queue pending timers and reschedule them */ |
801 | timers_reify (); /* relative timers called last */ |
1091 | timers_reify (EV_A); /* relative timers called last */ |
802 | periodics_reify (); /* absolute timers called first */ |
1092 | periodics_reify (EV_A); /* absolute timers called first */ |
803 | |
1093 | |
804 | /* queue idle watchers unless io or timers are pending */ |
1094 | /* queue idle watchers unless io or timers are pending */ |
805 | if (!pendingcnt) |
1095 | if (!pendingcnt) |
806 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1096 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
807 | |
1097 | |
808 | /* queue check watchers, to be executed first */ |
1098 | /* queue check watchers, to be executed first */ |
809 | if (checkcnt) |
1099 | if (checkcnt) |
810 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1100 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
811 | |
1101 | |
812 | call_pending (); |
1102 | call_pending (EV_A); |
813 | } |
1103 | } |
814 | while (!ev_loop_done); |
1104 | while (activecnt && !loop_done); |
815 | |
1105 | |
816 | if (ev_loop_done != 2) |
1106 | if (loop_done != 2) |
817 | ev_loop_done = 0; |
1107 | loop_done = 0; |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | void |
|
|
1111 | ev_unloop (EV_P_ int how) |
|
|
1112 | { |
|
|
1113 | loop_done = how; |
818 | } |
1114 | } |
819 | |
1115 | |
820 | /*****************************************************************************/ |
1116 | /*****************************************************************************/ |
821 | |
1117 | |
822 | static void |
1118 | inline void |
823 | wlist_add (WL *head, WL elem) |
1119 | wlist_add (WL *head, WL elem) |
824 | { |
1120 | { |
825 | elem->next = *head; |
1121 | elem->next = *head; |
826 | *head = elem; |
1122 | *head = elem; |
827 | } |
1123 | } |
828 | |
1124 | |
829 | static void |
1125 | inline void |
830 | wlist_del (WL *head, WL elem) |
1126 | wlist_del (WL *head, WL elem) |
831 | { |
1127 | { |
832 | while (*head) |
1128 | while (*head) |
833 | { |
1129 | { |
834 | if (*head == elem) |
1130 | if (*head == elem) |
… | |
… | |
839 | |
1135 | |
840 | head = &(*head)->next; |
1136 | head = &(*head)->next; |
841 | } |
1137 | } |
842 | } |
1138 | } |
843 | |
1139 | |
844 | static void |
1140 | inline void |
845 | ev_clear_pending (W w) |
1141 | ev_clear_pending (EV_P_ W w) |
846 | { |
1142 | { |
847 | if (w->pending) |
1143 | if (w->pending) |
848 | { |
1144 | { |
849 | pendings [w->pending - 1].w = 0; |
1145 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
850 | w->pending = 0; |
1146 | w->pending = 0; |
851 | } |
1147 | } |
852 | } |
1148 | } |
853 | |
1149 | |
854 | static void |
1150 | inline void |
855 | ev_start (W w, int active) |
1151 | ev_start (EV_P_ W w, int active) |
856 | { |
1152 | { |
|
|
1153 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
1154 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1155 | |
857 | w->active = active; |
1156 | w->active = active; |
|
|
1157 | ev_ref (EV_A); |
858 | } |
1158 | } |
859 | |
1159 | |
860 | static void |
1160 | inline void |
861 | ev_stop (W w) |
1161 | ev_stop (EV_P_ W w) |
862 | { |
1162 | { |
|
|
1163 | ev_unref (EV_A); |
863 | w->active = 0; |
1164 | w->active = 0; |
864 | } |
1165 | } |
865 | |
1166 | |
866 | /*****************************************************************************/ |
1167 | /*****************************************************************************/ |
867 | |
1168 | |
868 | void |
1169 | void |
869 | ev_io_start (struct ev_io *w) |
1170 | ev_io_start (EV_P_ struct ev_io *w) |
870 | { |
1171 | { |
871 | int fd = w->fd; |
1172 | int fd = w->fd; |
872 | |
1173 | |
873 | if (ev_is_active (w)) |
1174 | if (ev_is_active (w)) |
874 | return; |
1175 | return; |
875 | |
1176 | |
876 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1177 | assert (("ev_io_start called with negative fd", fd >= 0)); |
877 | |
1178 | |
878 | ev_start ((W)w, 1); |
1179 | ev_start (EV_A_ (W)w, 1); |
879 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1180 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
880 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1181 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
881 | |
1182 | |
882 | fd_change (fd); |
1183 | fd_change (EV_A_ fd); |
883 | } |
1184 | } |
884 | |
1185 | |
885 | void |
1186 | void |
886 | ev_io_stop (struct ev_io *w) |
1187 | ev_io_stop (EV_P_ struct ev_io *w) |
887 | { |
1188 | { |
888 | ev_clear_pending ((W)w); |
1189 | ev_clear_pending (EV_A_ (W)w); |
889 | if (!ev_is_active (w)) |
1190 | if (!ev_is_active (w)) |
890 | return; |
1191 | return; |
891 | |
1192 | |
892 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1193 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
893 | ev_stop ((W)w); |
1194 | ev_stop (EV_A_ (W)w); |
894 | |
1195 | |
895 | fd_change (w->fd); |
1196 | fd_change (EV_A_ w->fd); |
896 | } |
1197 | } |
897 | |
1198 | |
898 | void |
1199 | void |
899 | ev_timer_start (struct ev_timer *w) |
1200 | ev_timer_start (EV_P_ struct ev_timer *w) |
900 | { |
1201 | { |
901 | if (ev_is_active (w)) |
1202 | if (ev_is_active (w)) |
902 | return; |
1203 | return; |
903 | |
1204 | |
904 | w->at += now; |
1205 | ((WT)w)->at += mn_now; |
905 | |
1206 | |
906 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1207 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
907 | |
1208 | |
908 | ev_start ((W)w, ++timercnt); |
1209 | ev_start (EV_A_ (W)w, ++timercnt); |
909 | array_needsize (timers, timermax, timercnt, ); |
1210 | array_needsize (timers, timermax, timercnt, ); |
910 | timers [timercnt - 1] = w; |
1211 | timers [timercnt - 1] = w; |
911 | upheap ((WT *)timers, timercnt - 1); |
1212 | upheap ((WT *)timers, timercnt - 1); |
912 | } |
|
|
913 | |
1213 | |
|
|
1214 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1215 | } |
|
|
1216 | |
914 | void |
1217 | void |
915 | ev_timer_stop (struct ev_timer *w) |
1218 | ev_timer_stop (EV_P_ struct ev_timer *w) |
916 | { |
1219 | { |
917 | ev_clear_pending ((W)w); |
1220 | ev_clear_pending (EV_A_ (W)w); |
918 | if (!ev_is_active (w)) |
1221 | if (!ev_is_active (w)) |
919 | return; |
1222 | return; |
920 | |
1223 | |
|
|
1224 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1225 | |
921 | if (w->active < timercnt--) |
1226 | if (((W)w)->active < timercnt--) |
922 | { |
1227 | { |
923 | timers [w->active - 1] = timers [timercnt]; |
1228 | timers [((W)w)->active - 1] = timers [timercnt]; |
924 | downheap ((WT *)timers, timercnt, w->active - 1); |
1229 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
925 | } |
1230 | } |
926 | |
1231 | |
927 | w->at = w->repeat; |
1232 | ((WT)w)->at = w->repeat; |
928 | |
1233 | |
929 | ev_stop ((W)w); |
1234 | ev_stop (EV_A_ (W)w); |
930 | } |
1235 | } |
931 | |
1236 | |
932 | void |
1237 | void |
933 | ev_timer_again (struct ev_timer *w) |
1238 | ev_timer_again (EV_P_ struct ev_timer *w) |
934 | { |
1239 | { |
935 | if (ev_is_active (w)) |
1240 | if (ev_is_active (w)) |
936 | { |
1241 | { |
937 | if (w->repeat) |
1242 | if (w->repeat) |
938 | { |
1243 | { |
939 | w->at = now + w->repeat; |
1244 | ((WT)w)->at = mn_now + w->repeat; |
940 | downheap ((WT *)timers, timercnt, w->active - 1); |
1245 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
941 | } |
1246 | } |
942 | else |
1247 | else |
943 | ev_timer_stop (w); |
1248 | ev_timer_stop (EV_A_ w); |
944 | } |
1249 | } |
945 | else if (w->repeat) |
1250 | else if (w->repeat) |
946 | ev_timer_start (w); |
1251 | ev_timer_start (EV_A_ w); |
947 | } |
1252 | } |
948 | |
1253 | |
949 | void |
1254 | void |
950 | ev_periodic_start (struct ev_periodic *w) |
1255 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
951 | { |
1256 | { |
952 | if (ev_is_active (w)) |
1257 | if (ev_is_active (w)) |
953 | return; |
1258 | return; |
954 | |
1259 | |
955 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1260 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
956 | |
1261 | |
957 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1262 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
958 | if (w->interval) |
1263 | if (w->interval) |
959 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1264 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
960 | |
1265 | |
961 | ev_start ((W)w, ++periodiccnt); |
1266 | ev_start (EV_A_ (W)w, ++periodiccnt); |
962 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1267 | array_needsize (periodics, periodicmax, periodiccnt, ); |
963 | periodics [periodiccnt - 1] = w; |
1268 | periodics [periodiccnt - 1] = w; |
964 | upheap ((WT *)periodics, periodiccnt - 1); |
1269 | upheap ((WT *)periodics, periodiccnt - 1); |
965 | } |
|
|
966 | |
1270 | |
|
|
1271 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1272 | } |
|
|
1273 | |
967 | void |
1274 | void |
968 | ev_periodic_stop (struct ev_periodic *w) |
1275 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
969 | { |
1276 | { |
970 | ev_clear_pending ((W)w); |
1277 | ev_clear_pending (EV_A_ (W)w); |
971 | if (!ev_is_active (w)) |
1278 | if (!ev_is_active (w)) |
972 | return; |
1279 | return; |
973 | |
1280 | |
|
|
1281 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1282 | |
974 | if (w->active < periodiccnt--) |
1283 | if (((W)w)->active < periodiccnt--) |
975 | { |
1284 | { |
976 | periodics [w->active - 1] = periodics [periodiccnt]; |
1285 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
977 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1286 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
978 | } |
1287 | } |
979 | |
1288 | |
980 | ev_stop ((W)w); |
1289 | ev_stop (EV_A_ (W)w); |
981 | } |
1290 | } |
982 | |
1291 | |
983 | void |
1292 | void |
984 | ev_signal_start (struct ev_signal *w) |
1293 | ev_idle_start (EV_P_ struct ev_idle *w) |
985 | { |
1294 | { |
986 | if (ev_is_active (w)) |
1295 | if (ev_is_active (w)) |
987 | return; |
1296 | return; |
988 | |
1297 | |
|
|
1298 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1299 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1300 | idles [idlecnt - 1] = w; |
|
|
1301 | } |
|
|
1302 | |
|
|
1303 | void |
|
|
1304 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1305 | { |
|
|
1306 | ev_clear_pending (EV_A_ (W)w); |
|
|
1307 | if (ev_is_active (w)) |
|
|
1308 | return; |
|
|
1309 | |
|
|
1310 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1311 | ev_stop (EV_A_ (W)w); |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | void |
|
|
1315 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1316 | { |
|
|
1317 | if (ev_is_active (w)) |
|
|
1318 | return; |
|
|
1319 | |
|
|
1320 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1321 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1322 | prepares [preparecnt - 1] = w; |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | void |
|
|
1326 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1327 | { |
|
|
1328 | ev_clear_pending (EV_A_ (W)w); |
|
|
1329 | if (ev_is_active (w)) |
|
|
1330 | return; |
|
|
1331 | |
|
|
1332 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1333 | ev_stop (EV_A_ (W)w); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | void |
|
|
1337 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1338 | { |
|
|
1339 | if (ev_is_active (w)) |
|
|
1340 | return; |
|
|
1341 | |
|
|
1342 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1343 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1344 | checks [checkcnt - 1] = w; |
|
|
1345 | } |
|
|
1346 | |
|
|
1347 | void |
|
|
1348 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1349 | { |
|
|
1350 | ev_clear_pending (EV_A_ (W)w); |
|
|
1351 | if (ev_is_active (w)) |
|
|
1352 | return; |
|
|
1353 | |
|
|
1354 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1355 | ev_stop (EV_A_ (W)w); |
|
|
1356 | } |
|
|
1357 | |
|
|
1358 | #ifndef SA_RESTART |
|
|
1359 | # define SA_RESTART 0 |
|
|
1360 | #endif |
|
|
1361 | |
|
|
1362 | void |
|
|
1363 | ev_signal_start (EV_P_ struct ev_signal *w) |
|
|
1364 | { |
|
|
1365 | #if EV_MULTIPLICITY |
|
|
1366 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1367 | #endif |
|
|
1368 | if (ev_is_active (w)) |
|
|
1369 | return; |
|
|
1370 | |
989 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1371 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
990 | |
1372 | |
991 | ev_start ((W)w, 1); |
1373 | ev_start (EV_A_ (W)w, 1); |
992 | array_needsize (signals, signalmax, w->signum, signals_init); |
1374 | array_needsize (signals, signalmax, w->signum, signals_init); |
993 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1375 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
994 | |
1376 | |
995 | if (!w->next) |
1377 | if (!((WL)w)->next) |
996 | { |
1378 | { |
|
|
1379 | #if WIN32 |
|
|
1380 | signal (w->signum, sighandler); |
|
|
1381 | #else |
997 | struct sigaction sa; |
1382 | struct sigaction sa; |
998 | sa.sa_handler = sighandler; |
1383 | sa.sa_handler = sighandler; |
999 | sigfillset (&sa.sa_mask); |
1384 | sigfillset (&sa.sa_mask); |
1000 | sa.sa_flags = 0; |
1385 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1001 | sigaction (w->signum, &sa, 0); |
1386 | sigaction (w->signum, &sa, 0); |
|
|
1387 | #endif |
1002 | } |
1388 | } |
1003 | } |
1389 | } |
1004 | |
1390 | |
1005 | void |
1391 | void |
1006 | ev_signal_stop (struct ev_signal *w) |
1392 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1007 | { |
1393 | { |
1008 | ev_clear_pending ((W)w); |
1394 | ev_clear_pending (EV_A_ (W)w); |
1009 | if (!ev_is_active (w)) |
1395 | if (!ev_is_active (w)) |
1010 | return; |
1396 | return; |
1011 | |
1397 | |
1012 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1398 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1013 | ev_stop ((W)w); |
1399 | ev_stop (EV_A_ (W)w); |
1014 | |
1400 | |
1015 | if (!signals [w->signum - 1].head) |
1401 | if (!signals [w->signum - 1].head) |
1016 | signal (w->signum, SIG_DFL); |
1402 | signal (w->signum, SIG_DFL); |
1017 | } |
1403 | } |
1018 | |
1404 | |
1019 | void |
1405 | void |
1020 | ev_idle_start (struct ev_idle *w) |
1406 | ev_child_start (EV_P_ struct ev_child *w) |
1021 | { |
1407 | { |
|
|
1408 | #if EV_MULTIPLICITY |
|
|
1409 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1410 | #endif |
1022 | if (ev_is_active (w)) |
1411 | if (ev_is_active (w)) |
1023 | return; |
1412 | return; |
1024 | |
1413 | |
1025 | ev_start ((W)w, ++idlecnt); |
1414 | ev_start (EV_A_ (W)w, 1); |
1026 | array_needsize (idles, idlemax, idlecnt, ); |
1415 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1027 | idles [idlecnt - 1] = w; |
|
|
1028 | } |
1416 | } |
1029 | |
1417 | |
1030 | void |
1418 | void |
1031 | ev_idle_stop (struct ev_idle *w) |
1419 | ev_child_stop (EV_P_ struct ev_child *w) |
1032 | { |
1420 | { |
1033 | ev_clear_pending ((W)w); |
1421 | ev_clear_pending (EV_A_ (W)w); |
1034 | if (ev_is_active (w)) |
1422 | if (ev_is_active (w)) |
1035 | return; |
1423 | return; |
1036 | |
1424 | |
1037 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1038 | ev_stop ((W)w); |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | void |
|
|
1042 | ev_prepare_start (struct ev_prepare *w) |
|
|
1043 | { |
|
|
1044 | if (ev_is_active (w)) |
|
|
1045 | return; |
|
|
1046 | |
|
|
1047 | ev_start ((W)w, ++preparecnt); |
|
|
1048 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1049 | prepares [preparecnt - 1] = w; |
|
|
1050 | } |
|
|
1051 | |
|
|
1052 | void |
|
|
1053 | ev_prepare_stop (struct ev_prepare *w) |
|
|
1054 | { |
|
|
1055 | ev_clear_pending ((W)w); |
|
|
1056 | if (ev_is_active (w)) |
|
|
1057 | return; |
|
|
1058 | |
|
|
1059 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1060 | ev_stop ((W)w); |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | void |
|
|
1064 | ev_check_start (struct ev_check *w) |
|
|
1065 | { |
|
|
1066 | if (ev_is_active (w)) |
|
|
1067 | return; |
|
|
1068 | |
|
|
1069 | ev_start ((W)w, ++checkcnt); |
|
|
1070 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1071 | checks [checkcnt - 1] = w; |
|
|
1072 | } |
|
|
1073 | |
|
|
1074 | void |
|
|
1075 | ev_check_stop (struct ev_check *w) |
|
|
1076 | { |
|
|
1077 | ev_clear_pending ((W)w); |
|
|
1078 | if (ev_is_active (w)) |
|
|
1079 | return; |
|
|
1080 | |
|
|
1081 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1082 | ev_stop ((W)w); |
|
|
1083 | } |
|
|
1084 | |
|
|
1085 | void |
|
|
1086 | ev_child_start (struct ev_child *w) |
|
|
1087 | { |
|
|
1088 | if (ev_is_active (w)) |
|
|
1089 | return; |
|
|
1090 | |
|
|
1091 | ev_start ((W)w, 1); |
|
|
1092 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | void |
|
|
1096 | ev_child_stop (struct ev_child *w) |
|
|
1097 | { |
|
|
1098 | ev_clear_pending ((W)w); |
|
|
1099 | if (ev_is_active (w)) |
|
|
1100 | return; |
|
|
1101 | |
|
|
1102 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1425 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1103 | ev_stop ((W)w); |
1426 | ev_stop (EV_A_ (W)w); |
1104 | } |
1427 | } |
1105 | |
1428 | |
1106 | /*****************************************************************************/ |
1429 | /*****************************************************************************/ |
1107 | |
1430 | |
1108 | struct ev_once |
1431 | struct ev_once |
… | |
… | |
1112 | void (*cb)(int revents, void *arg); |
1435 | void (*cb)(int revents, void *arg); |
1113 | void *arg; |
1436 | void *arg; |
1114 | }; |
1437 | }; |
1115 | |
1438 | |
1116 | static void |
1439 | static void |
1117 | once_cb (struct ev_once *once, int revents) |
1440 | once_cb (EV_P_ struct ev_once *once, int revents) |
1118 | { |
1441 | { |
1119 | void (*cb)(int revents, void *arg) = once->cb; |
1442 | void (*cb)(int revents, void *arg) = once->cb; |
1120 | void *arg = once->arg; |
1443 | void *arg = once->arg; |
1121 | |
1444 | |
1122 | ev_io_stop (&once->io); |
1445 | ev_io_stop (EV_A_ &once->io); |
1123 | ev_timer_stop (&once->to); |
1446 | ev_timer_stop (EV_A_ &once->to); |
1124 | free (once); |
1447 | ev_free (once); |
1125 | |
1448 | |
1126 | cb (revents, arg); |
1449 | cb (revents, arg); |
1127 | } |
1450 | } |
1128 | |
1451 | |
1129 | static void |
1452 | static void |
1130 | once_cb_io (struct ev_io *w, int revents) |
1453 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1131 | { |
1454 | { |
1132 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1455 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1133 | } |
1456 | } |
1134 | |
1457 | |
1135 | static void |
1458 | static void |
1136 | once_cb_to (struct ev_timer *w, int revents) |
1459 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1137 | { |
1460 | { |
1138 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1461 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1139 | } |
1462 | } |
1140 | |
1463 | |
1141 | void |
1464 | void |
1142 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1465 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1143 | { |
1466 | { |
1144 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1467 | struct ev_once *once = ev_malloc (sizeof (struct ev_once)); |
1145 | |
1468 | |
1146 | if (!once) |
1469 | if (!once) |
1147 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1470 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1148 | else |
1471 | else |
1149 | { |
1472 | { |
… | |
… | |
1152 | |
1475 | |
1153 | ev_watcher_init (&once->io, once_cb_io); |
1476 | ev_watcher_init (&once->io, once_cb_io); |
1154 | if (fd >= 0) |
1477 | if (fd >= 0) |
1155 | { |
1478 | { |
1156 | ev_io_set (&once->io, fd, events); |
1479 | ev_io_set (&once->io, fd, events); |
1157 | ev_io_start (&once->io); |
1480 | ev_io_start (EV_A_ &once->io); |
1158 | } |
1481 | } |
1159 | |
1482 | |
1160 | ev_watcher_init (&once->to, once_cb_to); |
1483 | ev_watcher_init (&once->to, once_cb_to); |
1161 | if (timeout >= 0.) |
1484 | if (timeout >= 0.) |
1162 | { |
1485 | { |
1163 | ev_timer_set (&once->to, timeout, 0.); |
1486 | ev_timer_set (&once->to, timeout, 0.); |
1164 | ev_timer_start (&once->to); |
1487 | ev_timer_start (EV_A_ &once->to); |
1165 | } |
1488 | } |
1166 | } |
1489 | } |
1167 | } |
1490 | } |
1168 | |
1491 | |
1169 | /*****************************************************************************/ |
|
|
1170 | |
|
|
1171 | #if 0 |
|
|
1172 | |
|
|
1173 | struct ev_io wio; |
|
|
1174 | |
|
|
1175 | static void |
|
|
1176 | sin_cb (struct ev_io *w, int revents) |
|
|
1177 | { |
|
|
1178 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1179 | } |
|
|
1180 | |
|
|
1181 | static void |
|
|
1182 | ocb (struct ev_timer *w, int revents) |
|
|
1183 | { |
|
|
1184 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1185 | ev_timer_stop (w); |
|
|
1186 | ev_timer_start (w); |
|
|
1187 | } |
|
|
1188 | |
|
|
1189 | static void |
|
|
1190 | scb (struct ev_signal *w, int revents) |
|
|
1191 | { |
|
|
1192 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1193 | ev_io_stop (&wio); |
|
|
1194 | ev_io_start (&wio); |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | static void |
|
|
1198 | gcb (struct ev_signal *w, int revents) |
|
|
1199 | { |
|
|
1200 | fprintf (stderr, "generic %x\n", revents); |
|
|
1201 | |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | int main (void) |
|
|
1205 | { |
|
|
1206 | ev_init (0); |
|
|
1207 | |
|
|
1208 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1209 | ev_io_start (&wio); |
|
|
1210 | |
|
|
1211 | struct ev_timer t[10000]; |
|
|
1212 | |
|
|
1213 | #if 0 |
|
|
1214 | int i; |
|
|
1215 | for (i = 0; i < 10000; ++i) |
|
|
1216 | { |
|
|
1217 | struct ev_timer *w = t + i; |
|
|
1218 | ev_watcher_init (w, ocb, i); |
|
|
1219 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1220 | ev_timer_start (w); |
|
|
1221 | if (drand48 () < 0.5) |
|
|
1222 | ev_timer_stop (w); |
|
|
1223 | } |
|
|
1224 | #endif |
|
|
1225 | |
|
|
1226 | struct ev_timer t1; |
|
|
1227 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1228 | ev_timer_start (&t1); |
|
|
1229 | |
|
|
1230 | struct ev_signal sig; |
|
|
1231 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1232 | ev_signal_start (&sig); |
|
|
1233 | |
|
|
1234 | struct ev_check cw; |
|
|
1235 | ev_check_init (&cw, gcb); |
|
|
1236 | ev_check_start (&cw); |
|
|
1237 | |
|
|
1238 | struct ev_idle iw; |
|
|
1239 | ev_idle_init (&iw, gcb); |
|
|
1240 | ev_idle_start (&iw); |
|
|
1241 | |
|
|
1242 | ev_loop (0); |
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|
1243 | |
|
|
1244 | return 0; |
|
|
1245 | } |
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|
1246 | |
|
|
1247 | #endif |
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1248 | |
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1249 | |
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1250 | |
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1251 | |
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|