… | |
… | |
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> |
|
|
38 | #include <fcntl.h> |
59 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
60 | #include <stddef.h> |
41 | |
61 | |
42 | #include <stdio.h> |
62 | #include <stdio.h> |
43 | |
63 | |
44 | #include <assert.h> |
64 | #include <assert.h> |
45 | #include <errno.h> |
65 | #include <errno.h> |
46 | #include <sys/types.h> |
66 | #include <sys/types.h> |
47 | #include <sys/wait.h> |
|
|
48 | #include <sys/time.h> |
|
|
49 | #include <time.h> |
67 | #include <time.h> |
50 | |
68 | |
|
|
69 | #ifndef PERL |
|
|
70 | # include <signal.h> |
|
|
71 | #endif |
|
|
72 | |
|
|
73 | #ifndef WIN32 |
|
|
74 | # include <unistd.h> |
|
|
75 | # include <sys/time.h> |
|
|
76 | # include <sys/wait.h> |
|
|
77 | #endif |
51 | /**/ |
78 | /**/ |
52 | |
79 | |
53 | #ifndef EV_USE_MONOTONIC |
80 | #ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
81 | # define EV_USE_MONOTONIC 1 |
55 | #endif |
82 | #endif |
… | |
… | |
62 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
89 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
63 | #endif |
90 | #endif |
64 | |
91 | |
65 | #ifndef EV_USE_EPOLL |
92 | #ifndef EV_USE_EPOLL |
66 | # define EV_USE_EPOLL 0 |
93 | # define EV_USE_EPOLL 0 |
|
|
94 | #endif |
|
|
95 | |
|
|
96 | #ifndef EV_USE_KQUEUE |
|
|
97 | # define EV_USE_KQUEUE 0 |
|
|
98 | #endif |
|
|
99 | |
|
|
100 | #ifndef EV_USE_WIN32 |
|
|
101 | # ifdef WIN32 |
|
|
102 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
|
|
103 | # undef EV_USE_SELECT |
|
|
104 | # define EV_USE_SELECT 1 |
|
|
105 | # else |
|
|
106 | # define EV_USE_WIN32 0 |
|
|
107 | # endif |
67 | #endif |
108 | #endif |
68 | |
109 | |
69 | #ifndef EV_USE_REALTIME |
110 | #ifndef EV_USE_REALTIME |
70 | # define EV_USE_REALTIME 1 |
111 | # define EV_USE_REALTIME 1 |
71 | #endif |
112 | #endif |
… | |
… | |
107 | |
148 | |
108 | typedef struct ev_watcher *W; |
149 | typedef struct ev_watcher *W; |
109 | typedef struct ev_watcher_list *WL; |
150 | typedef struct ev_watcher_list *WL; |
110 | typedef struct ev_watcher_time *WT; |
151 | typedef struct ev_watcher_time *WT; |
111 | |
152 | |
112 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
153 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
113 | ev_tstamp ev_now; |
|
|
114 | int ev_method; |
|
|
115 | |
154 | |
116 | static int have_monotonic; /* runtime */ |
155 | #if WIN32 |
117 | |
156 | /* note: the comment below could not be substantiated, but what would I care */ |
118 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
157 | /* MSDN says this is required to handle SIGFPE */ |
119 | static void (*method_modify)(int fd, int oev, int nev); |
158 | volatile double SIGFPE_REQ = 0.0f; |
120 | static void (*method_poll)(ev_tstamp timeout); |
159 | #endif |
121 | |
160 | |
122 | /*****************************************************************************/ |
161 | /*****************************************************************************/ |
123 | |
162 | |
124 | ev_tstamp |
163 | static void (*syserr_cb)(const char *msg); |
|
|
164 | |
|
|
165 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
166 | { |
|
|
167 | syserr_cb = cb; |
|
|
168 | } |
|
|
169 | |
|
|
170 | static void |
|
|
171 | syserr (const char *msg) |
|
|
172 | { |
|
|
173 | if (!msg) |
|
|
174 | msg = "(libev) system error"; |
|
|
175 | |
|
|
176 | if (syserr_cb) |
|
|
177 | syserr_cb (msg); |
|
|
178 | else |
|
|
179 | { |
|
|
180 | perror (msg); |
|
|
181 | abort (); |
|
|
182 | } |
|
|
183 | } |
|
|
184 | |
|
|
185 | static void *(*alloc)(void *ptr, long size); |
|
|
186 | |
|
|
187 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
188 | { |
|
|
189 | alloc = cb; |
|
|
190 | } |
|
|
191 | |
|
|
192 | static void * |
|
|
193 | ev_realloc (void *ptr, long size) |
|
|
194 | { |
|
|
195 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
196 | |
|
|
197 | if (!ptr && size) |
|
|
198 | { |
|
|
199 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
200 | abort (); |
|
|
201 | } |
|
|
202 | |
|
|
203 | return ptr; |
|
|
204 | } |
|
|
205 | |
|
|
206 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
207 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
208 | |
|
|
209 | /*****************************************************************************/ |
|
|
210 | |
|
|
211 | typedef struct |
|
|
212 | { |
|
|
213 | WL head; |
|
|
214 | unsigned char events; |
|
|
215 | unsigned char reify; |
|
|
216 | } ANFD; |
|
|
217 | |
|
|
218 | typedef struct |
|
|
219 | { |
|
|
220 | W w; |
|
|
221 | int events; |
|
|
222 | } ANPENDING; |
|
|
223 | |
|
|
224 | #if EV_MULTIPLICITY |
|
|
225 | |
|
|
226 | struct ev_loop |
|
|
227 | { |
|
|
228 | # define VAR(name,decl) decl; |
|
|
229 | # include "ev_vars.h" |
|
|
230 | }; |
|
|
231 | # undef VAR |
|
|
232 | # include "ev_wrap.h" |
|
|
233 | |
|
|
234 | #else |
|
|
235 | |
|
|
236 | # define VAR(name,decl) static decl; |
|
|
237 | # include "ev_vars.h" |
|
|
238 | # undef VAR |
|
|
239 | |
|
|
240 | #endif |
|
|
241 | |
|
|
242 | /*****************************************************************************/ |
|
|
243 | |
|
|
244 | inline ev_tstamp |
125 | ev_time (void) |
245 | ev_time (void) |
126 | { |
246 | { |
127 | #if EV_USE_REALTIME |
247 | #if EV_USE_REALTIME |
128 | struct timespec ts; |
248 | struct timespec ts; |
129 | clock_gettime (CLOCK_REALTIME, &ts); |
249 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
133 | gettimeofday (&tv, 0); |
253 | gettimeofday (&tv, 0); |
134 | return tv.tv_sec + tv.tv_usec * 1e-6; |
254 | return tv.tv_sec + tv.tv_usec * 1e-6; |
135 | #endif |
255 | #endif |
136 | } |
256 | } |
137 | |
257 | |
138 | static ev_tstamp |
258 | inline ev_tstamp |
139 | get_clock (void) |
259 | get_clock (void) |
140 | { |
260 | { |
141 | #if EV_USE_MONOTONIC |
261 | #if EV_USE_MONOTONIC |
142 | if (expect_true (have_monotonic)) |
262 | if (expect_true (have_monotonic)) |
143 | { |
263 | { |
… | |
… | |
148 | #endif |
268 | #endif |
149 | |
269 | |
150 | return ev_time (); |
270 | return ev_time (); |
151 | } |
271 | } |
152 | |
272 | |
|
|
273 | ev_tstamp |
|
|
274 | ev_now (EV_P) |
|
|
275 | { |
|
|
276 | return rt_now; |
|
|
277 | } |
|
|
278 | |
153 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
279 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
154 | |
280 | |
155 | #define array_needsize(base,cur,cnt,init) \ |
281 | #define array_needsize(base,cur,cnt,init) \ |
156 | if (expect_false ((cnt) > cur)) \ |
282 | if (expect_false ((cnt) > cur)) \ |
157 | { \ |
283 | { \ |
158 | int newcnt = cur; \ |
284 | int newcnt = cur; \ |
159 | do \ |
285 | do \ |
160 | { \ |
286 | { \ |
161 | newcnt = array_roundsize (base, newcnt << 1); \ |
287 | newcnt = array_roundsize (base, newcnt << 1); \ |
162 | } \ |
288 | } \ |
163 | while ((cnt) > newcnt); \ |
289 | while ((cnt) > newcnt); \ |
164 | \ |
290 | \ |
165 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
291 | base = ev_realloc (base, sizeof (*base) * (newcnt)); \ |
166 | init (base + cur, newcnt - cur); \ |
292 | init (base + cur, newcnt - cur); \ |
167 | cur = newcnt; \ |
293 | cur = newcnt; \ |
168 | } |
294 | } |
|
|
295 | |
|
|
296 | #define array_slim(stem) \ |
|
|
297 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
298 | { \ |
|
|
299 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
300 | base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ |
|
|
301 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
302 | } |
|
|
303 | |
|
|
304 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
305 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
306 | #define array_free_microshit(stem) \ |
|
|
307 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
308 | |
|
|
309 | #define array_free(stem, idx) \ |
|
|
310 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
169 | |
311 | |
170 | /*****************************************************************************/ |
312 | /*****************************************************************************/ |
171 | |
|
|
172 | typedef struct |
|
|
173 | { |
|
|
174 | struct ev_io *head; |
|
|
175 | unsigned char events; |
|
|
176 | unsigned char reify; |
|
|
177 | } ANFD; |
|
|
178 | |
|
|
179 | static ANFD *anfds; |
|
|
180 | static int anfdmax; |
|
|
181 | |
313 | |
182 | static void |
314 | static void |
183 | anfds_init (ANFD *base, int count) |
315 | anfds_init (ANFD *base, int count) |
184 | { |
316 | { |
185 | while (count--) |
317 | while (count--) |
… | |
… | |
190 | |
322 | |
191 | ++base; |
323 | ++base; |
192 | } |
324 | } |
193 | } |
325 | } |
194 | |
326 | |
195 | typedef struct |
|
|
196 | { |
|
|
197 | W w; |
|
|
198 | int events; |
|
|
199 | } ANPENDING; |
|
|
200 | |
|
|
201 | static ANPENDING *pendings [NUMPRI]; |
|
|
202 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
203 | |
|
|
204 | static void |
327 | static void |
205 | event (W w, int events) |
328 | event (EV_P_ W w, int events) |
206 | { |
329 | { |
207 | if (w->pending) |
330 | if (w->pending) |
208 | { |
331 | { |
209 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
332 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
210 | return; |
333 | return; |
211 | } |
334 | } |
212 | |
335 | |
213 | w->pending = ++pendingcnt [ABSPRI (w)]; |
336 | w->pending = ++pendingcnt [ABSPRI (w)]; |
214 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
337 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); |
215 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
338 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
216 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
339 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
217 | } |
340 | } |
218 | |
341 | |
219 | static void |
342 | static void |
220 | queue_events (W *events, int eventcnt, int type) |
343 | queue_events (EV_P_ W *events, int eventcnt, int type) |
221 | { |
344 | { |
222 | int i; |
345 | int i; |
223 | |
346 | |
224 | for (i = 0; i < eventcnt; ++i) |
347 | for (i = 0; i < eventcnt; ++i) |
225 | event (events [i], type); |
348 | event (EV_A_ events [i], type); |
226 | } |
349 | } |
227 | |
350 | |
228 | static void |
351 | static void |
229 | fd_event (int fd, int events) |
352 | fd_event (EV_P_ int fd, int events) |
230 | { |
353 | { |
231 | ANFD *anfd = anfds + fd; |
354 | ANFD *anfd = anfds + fd; |
232 | struct ev_io *w; |
355 | struct ev_io *w; |
233 | |
356 | |
234 | for (w = anfd->head; w; w = w->next) |
357 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
235 | { |
358 | { |
236 | int ev = w->events & events; |
359 | int ev = w->events & events; |
237 | |
360 | |
238 | if (ev) |
361 | if (ev) |
239 | event ((W)w, ev); |
362 | event (EV_A_ (W)w, ev); |
240 | } |
363 | } |
241 | } |
364 | } |
242 | |
365 | |
243 | /*****************************************************************************/ |
366 | /*****************************************************************************/ |
244 | |
367 | |
245 | static int *fdchanges; |
|
|
246 | static int fdchangemax, fdchangecnt; |
|
|
247 | |
|
|
248 | static void |
368 | static void |
249 | fd_reify (void) |
369 | fd_reify (EV_P) |
250 | { |
370 | { |
251 | int i; |
371 | int i; |
252 | |
372 | |
253 | for (i = 0; i < fdchangecnt; ++i) |
373 | for (i = 0; i < fdchangecnt; ++i) |
254 | { |
374 | { |
… | |
… | |
256 | ANFD *anfd = anfds + fd; |
376 | ANFD *anfd = anfds + fd; |
257 | struct ev_io *w; |
377 | struct ev_io *w; |
258 | |
378 | |
259 | int events = 0; |
379 | int events = 0; |
260 | |
380 | |
261 | for (w = anfd->head; w; w = w->next) |
381 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
262 | events |= w->events; |
382 | events |= w->events; |
263 | |
383 | |
264 | anfd->reify = 0; |
384 | anfd->reify = 0; |
265 | |
385 | |
266 | if (anfd->events != events) |
|
|
267 | { |
|
|
268 | method_modify (fd, anfd->events, events); |
386 | method_modify (EV_A_ fd, anfd->events, events); |
269 | anfd->events = events; |
387 | anfd->events = events; |
270 | } |
|
|
271 | } |
388 | } |
272 | |
389 | |
273 | fdchangecnt = 0; |
390 | fdchangecnt = 0; |
274 | } |
391 | } |
275 | |
392 | |
276 | static void |
393 | static void |
277 | fd_change (int fd) |
394 | fd_change (EV_P_ int fd) |
278 | { |
395 | { |
279 | if (anfds [fd].reify || fdchangecnt < 0) |
396 | if (anfds [fd].reify) |
280 | return; |
397 | return; |
281 | |
398 | |
282 | anfds [fd].reify = 1; |
399 | anfds [fd].reify = 1; |
283 | |
400 | |
284 | ++fdchangecnt; |
401 | ++fdchangecnt; |
285 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
402 | array_needsize (fdchanges, fdchangemax, fdchangecnt, (void)); |
286 | fdchanges [fdchangecnt - 1] = fd; |
403 | fdchanges [fdchangecnt - 1] = fd; |
287 | } |
404 | } |
288 | |
405 | |
289 | static void |
406 | static void |
290 | fd_kill (int fd) |
407 | fd_kill (EV_P_ int fd) |
291 | { |
408 | { |
292 | struct ev_io *w; |
409 | struct ev_io *w; |
293 | |
410 | |
294 | printf ("killing fd %d\n", fd);//D |
|
|
295 | while ((w = anfds [fd].head)) |
411 | while ((w = (struct ev_io *)anfds [fd].head)) |
296 | { |
412 | { |
297 | ev_io_stop (w); |
413 | ev_io_stop (EV_A_ w); |
298 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
414 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
299 | } |
415 | } |
|
|
416 | } |
|
|
417 | |
|
|
418 | static int |
|
|
419 | fd_valid (int fd) |
|
|
420 | { |
|
|
421 | #ifdef WIN32 |
|
|
422 | return !!win32_get_osfhandle (fd); |
|
|
423 | #else |
|
|
424 | return fcntl (fd, F_GETFD) != -1; |
|
|
425 | #endif |
300 | } |
426 | } |
301 | |
427 | |
302 | /* called on EBADF to verify fds */ |
428 | /* called on EBADF to verify fds */ |
303 | static void |
429 | static void |
304 | fd_ebadf (void) |
430 | fd_ebadf (EV_P) |
305 | { |
431 | { |
306 | int fd; |
432 | int fd; |
307 | |
433 | |
308 | for (fd = 0; fd < anfdmax; ++fd) |
434 | for (fd = 0; fd < anfdmax; ++fd) |
309 | if (anfds [fd].events) |
435 | if (anfds [fd].events) |
310 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
436 | if (!fd_valid (fd) == -1 && errno == EBADF) |
311 | fd_kill (fd); |
437 | fd_kill (EV_A_ fd); |
312 | } |
438 | } |
313 | |
439 | |
314 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
440 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
315 | static void |
441 | static void |
316 | fd_enomem (void) |
442 | fd_enomem (EV_P) |
317 | { |
443 | { |
318 | int fd = anfdmax; |
444 | int fd; |
319 | |
445 | |
320 | while (fd--) |
446 | for (fd = anfdmax; fd--; ) |
321 | if (anfds [fd].events) |
447 | if (anfds [fd].events) |
322 | { |
448 | { |
323 | close (fd); |
|
|
324 | fd_kill (fd); |
449 | fd_kill (EV_A_ fd); |
325 | return; |
450 | return; |
326 | } |
451 | } |
327 | } |
452 | } |
328 | |
453 | |
|
|
454 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
455 | static void |
|
|
456 | fd_rearm_all (EV_P) |
|
|
457 | { |
|
|
458 | int fd; |
|
|
459 | |
|
|
460 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
461 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
462 | if (anfds [fd].events) |
|
|
463 | { |
|
|
464 | anfds [fd].events = 0; |
|
|
465 | fd_change (EV_A_ fd); |
|
|
466 | } |
|
|
467 | } |
|
|
468 | |
329 | /*****************************************************************************/ |
469 | /*****************************************************************************/ |
330 | |
470 | |
331 | static struct ev_timer **timers; |
|
|
332 | static int timermax, timercnt; |
|
|
333 | |
|
|
334 | static struct ev_periodic **periodics; |
|
|
335 | static int periodicmax, periodiccnt; |
|
|
336 | |
|
|
337 | static void |
471 | static void |
338 | upheap (WT *timers, int k) |
472 | upheap (WT *heap, int k) |
339 | { |
473 | { |
340 | WT w = timers [k]; |
474 | WT w = heap [k]; |
341 | |
475 | |
342 | while (k && timers [k >> 1]->at > w->at) |
476 | while (k && heap [k >> 1]->at > w->at) |
343 | { |
477 | { |
344 | timers [k] = timers [k >> 1]; |
478 | heap [k] = heap [k >> 1]; |
345 | timers [k]->active = k + 1; |
479 | ((W)heap [k])->active = k + 1; |
346 | k >>= 1; |
480 | k >>= 1; |
347 | } |
481 | } |
348 | |
482 | |
349 | timers [k] = w; |
483 | heap [k] = w; |
350 | timers [k]->active = k + 1; |
484 | ((W)heap [k])->active = k + 1; |
351 | |
485 | |
352 | } |
486 | } |
353 | |
487 | |
354 | static void |
488 | static void |
355 | downheap (WT *timers, int N, int k) |
489 | downheap (WT *heap, int N, int k) |
356 | { |
490 | { |
357 | WT w = timers [k]; |
491 | WT w = heap [k]; |
358 | |
492 | |
359 | while (k < (N >> 1)) |
493 | while (k < (N >> 1)) |
360 | { |
494 | { |
361 | int j = k << 1; |
495 | int j = k << 1; |
362 | |
496 | |
363 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
497 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
364 | ++j; |
498 | ++j; |
365 | |
499 | |
366 | if (w->at <= timers [j]->at) |
500 | if (w->at <= heap [j]->at) |
367 | break; |
501 | break; |
368 | |
502 | |
369 | timers [k] = timers [j]; |
503 | heap [k] = heap [j]; |
370 | timers [k]->active = k + 1; |
504 | ((W)heap [k])->active = k + 1; |
371 | k = j; |
505 | k = j; |
372 | } |
506 | } |
373 | |
507 | |
374 | timers [k] = w; |
508 | heap [k] = w; |
375 | timers [k]->active = k + 1; |
509 | ((W)heap [k])->active = k + 1; |
376 | } |
510 | } |
377 | |
511 | |
378 | /*****************************************************************************/ |
512 | /*****************************************************************************/ |
379 | |
513 | |
380 | typedef struct |
514 | typedef struct |
381 | { |
515 | { |
382 | struct ev_signal *head; |
516 | WL head; |
383 | sig_atomic_t volatile gotsig; |
517 | sig_atomic_t volatile gotsig; |
384 | } ANSIG; |
518 | } ANSIG; |
385 | |
519 | |
386 | static ANSIG *signals; |
520 | static ANSIG *signals; |
387 | static int signalmax; |
521 | static int signalmax; |
… | |
… | |
403 | } |
537 | } |
404 | |
538 | |
405 | static void |
539 | static void |
406 | sighandler (int signum) |
540 | sighandler (int signum) |
407 | { |
541 | { |
|
|
542 | #if WIN32 |
|
|
543 | signal (signum, sighandler); |
|
|
544 | #endif |
|
|
545 | |
408 | signals [signum - 1].gotsig = 1; |
546 | signals [signum - 1].gotsig = 1; |
409 | |
547 | |
410 | if (!gotsig) |
548 | if (!gotsig) |
411 | { |
549 | { |
|
|
550 | int old_errno = errno; |
412 | gotsig = 1; |
551 | gotsig = 1; |
413 | write (sigpipe [1], &signum, 1); |
552 | write (sigpipe [1], &signum, 1); |
|
|
553 | errno = old_errno; |
414 | } |
554 | } |
415 | } |
555 | } |
416 | |
556 | |
417 | static void |
557 | static void |
418 | sigcb (struct ev_io *iow, int revents) |
558 | sigcb (EV_P_ struct ev_io *iow, int revents) |
419 | { |
559 | { |
420 | struct ev_signal *w; |
560 | WL w; |
421 | int signum; |
561 | int signum; |
422 | |
562 | |
423 | read (sigpipe [0], &revents, 1); |
563 | read (sigpipe [0], &revents, 1); |
424 | gotsig = 0; |
564 | gotsig = 0; |
425 | |
565 | |
… | |
… | |
427 | if (signals [signum].gotsig) |
567 | if (signals [signum].gotsig) |
428 | { |
568 | { |
429 | signals [signum].gotsig = 0; |
569 | signals [signum].gotsig = 0; |
430 | |
570 | |
431 | for (w = signals [signum].head; w; w = w->next) |
571 | for (w = signals [signum].head; w; w = w->next) |
432 | event ((W)w, EV_SIGNAL); |
572 | event (EV_A_ (W)w, EV_SIGNAL); |
433 | } |
573 | } |
434 | } |
574 | } |
435 | |
575 | |
436 | static void |
576 | static void |
437 | siginit (void) |
577 | siginit (EV_P) |
438 | { |
578 | { |
|
|
579 | #ifndef WIN32 |
439 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
580 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
440 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
581 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
441 | |
582 | |
442 | /* rather than sort out wether we really need nb, set it */ |
583 | /* rather than sort out wether we really need nb, set it */ |
443 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
584 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
444 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
585 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
586 | #endif |
445 | |
587 | |
446 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
588 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
447 | ev_io_start (&sigev); |
589 | ev_io_start (EV_A_ &sigev); |
|
|
590 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
448 | } |
591 | } |
449 | |
592 | |
450 | /*****************************************************************************/ |
593 | /*****************************************************************************/ |
451 | |
594 | |
452 | static struct ev_idle **idles; |
|
|
453 | static int idlemax, idlecnt; |
|
|
454 | |
|
|
455 | static struct ev_prepare **prepares; |
|
|
456 | static int preparemax, preparecnt; |
|
|
457 | |
|
|
458 | static struct ev_check **checks; |
|
|
459 | static int checkmax, checkcnt; |
|
|
460 | |
|
|
461 | /*****************************************************************************/ |
|
|
462 | |
|
|
463 | static struct ev_child *childs [PID_HASHSIZE]; |
595 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
596 | |
|
|
597 | #ifndef WIN32 |
|
|
598 | |
464 | static struct ev_signal childev; |
599 | static struct ev_signal childev; |
465 | |
600 | |
466 | #ifndef WCONTINUED |
601 | #ifndef WCONTINUED |
467 | # define WCONTINUED 0 |
602 | # define WCONTINUED 0 |
468 | #endif |
603 | #endif |
469 | |
604 | |
470 | static void |
605 | static void |
471 | childcb (struct ev_signal *sw, int revents) |
606 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
472 | { |
607 | { |
473 | struct ev_child *w; |
608 | struct ev_child *w; |
|
|
609 | |
|
|
610 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
611 | if (w->pid == pid || !w->pid) |
|
|
612 | { |
|
|
613 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
614 | w->rpid = pid; |
|
|
615 | w->rstatus = status; |
|
|
616 | event (EV_A_ (W)w, EV_CHILD); |
|
|
617 | } |
|
|
618 | } |
|
|
619 | |
|
|
620 | static void |
|
|
621 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
622 | { |
474 | int pid, status; |
623 | int pid, status; |
475 | |
624 | |
476 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
625 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
477 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
626 | { |
478 | if (w->pid == pid || !w->pid) |
627 | /* make sure we are called again until all childs have been reaped */ |
479 | { |
628 | event (EV_A_ (W)sw, EV_SIGNAL); |
480 | w->status = status; |
629 | |
481 | event ((W)w, EV_CHILD); |
630 | child_reap (EV_A_ sw, pid, pid, status); |
482 | } |
631 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
|
|
632 | } |
483 | } |
633 | } |
|
|
634 | |
|
|
635 | #endif |
484 | |
636 | |
485 | /*****************************************************************************/ |
637 | /*****************************************************************************/ |
486 | |
638 | |
|
|
639 | #if EV_USE_KQUEUE |
|
|
640 | # include "ev_kqueue.c" |
|
|
641 | #endif |
487 | #if EV_USE_EPOLL |
642 | #if EV_USE_EPOLL |
488 | # include "ev_epoll.c" |
643 | # include "ev_epoll.c" |
489 | #endif |
644 | #endif |
490 | #if EV_USE_POLL |
645 | #if EV_USE_POLL |
491 | # include "ev_poll.c" |
646 | # include "ev_poll.c" |
… | |
… | |
504 | ev_version_minor (void) |
659 | ev_version_minor (void) |
505 | { |
660 | { |
506 | return EV_VERSION_MINOR; |
661 | return EV_VERSION_MINOR; |
507 | } |
662 | } |
508 | |
663 | |
509 | /* return true if we are running with elevated privileges and ignore env variables */ |
664 | /* return true if we are running with elevated privileges and should ignore env variables */ |
510 | static int |
665 | static int |
511 | enable_secure () |
666 | enable_secure (void) |
512 | { |
667 | { |
|
|
668 | #ifdef WIN32 |
|
|
669 | return 0; |
|
|
670 | #else |
513 | return getuid () != geteuid () |
671 | return getuid () != geteuid () |
514 | || getgid () != getegid (); |
672 | || getgid () != getegid (); |
|
|
673 | #endif |
515 | } |
674 | } |
516 | |
675 | |
517 | int ev_init (int methods) |
676 | int |
|
|
677 | ev_method (EV_P) |
518 | { |
678 | { |
|
|
679 | return method; |
|
|
680 | } |
|
|
681 | |
|
|
682 | static void |
|
|
683 | loop_init (EV_P_ int methods) |
|
|
684 | { |
519 | if (!ev_method) |
685 | if (!method) |
520 | { |
686 | { |
521 | #if EV_USE_MONOTONIC |
687 | #if EV_USE_MONOTONIC |
522 | { |
688 | { |
523 | struct timespec ts; |
689 | struct timespec ts; |
524 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
690 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
525 | have_monotonic = 1; |
691 | have_monotonic = 1; |
526 | } |
692 | } |
527 | #endif |
693 | #endif |
528 | |
694 | |
529 | ev_now = ev_time (); |
695 | rt_now = ev_time (); |
530 | now = get_clock (); |
696 | mn_now = get_clock (); |
531 | now_floor = now; |
697 | now_floor = mn_now; |
532 | diff = ev_now - now; |
698 | rtmn_diff = rt_now - mn_now; |
533 | |
|
|
534 | if (pipe (sigpipe)) |
|
|
535 | return 0; |
|
|
536 | |
699 | |
537 | if (methods == EVMETHOD_AUTO) |
700 | if (methods == EVMETHOD_AUTO) |
538 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
701 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
539 | methods = atoi (getenv ("LIBEV_METHODS")); |
702 | methods = atoi (getenv ("LIBEV_METHODS")); |
540 | else |
703 | else |
541 | methods = EVMETHOD_ANY; |
704 | methods = EVMETHOD_ANY; |
542 | |
705 | |
543 | ev_method = 0; |
706 | method = 0; |
|
|
707 | #if EV_USE_WIN32 |
|
|
708 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
|
|
709 | #endif |
|
|
710 | #if EV_USE_KQUEUE |
|
|
711 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
|
|
712 | #endif |
544 | #if EV_USE_EPOLL |
713 | #if EV_USE_EPOLL |
545 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
714 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
546 | #endif |
715 | #endif |
547 | #if EV_USE_POLL |
716 | #if EV_USE_POLL |
548 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
717 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
549 | #endif |
718 | #endif |
550 | #if EV_USE_SELECT |
719 | #if EV_USE_SELECT |
551 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
720 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
552 | #endif |
721 | #endif |
553 | |
722 | |
|
|
723 | ev_watcher_init (&sigev, sigcb); |
|
|
724 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
725 | } |
|
|
726 | } |
|
|
727 | |
|
|
728 | void |
|
|
729 | loop_destroy (EV_P) |
|
|
730 | { |
|
|
731 | int i; |
|
|
732 | |
|
|
733 | #if EV_USE_WIN32 |
|
|
734 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
|
|
735 | #endif |
|
|
736 | #if EV_USE_KQUEUE |
|
|
737 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
738 | #endif |
|
|
739 | #if EV_USE_EPOLL |
|
|
740 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
741 | #endif |
|
|
742 | #if EV_USE_POLL |
|
|
743 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
744 | #endif |
|
|
745 | #if EV_USE_SELECT |
|
|
746 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | for (i = NUMPRI; i--; ) |
|
|
750 | array_free (pending, [i]); |
|
|
751 | |
|
|
752 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
753 | array_free_microshit (fdchange); |
|
|
754 | array_free_microshit (timer); |
|
|
755 | array_free_microshit (periodic); |
|
|
756 | array_free_microshit (idle); |
|
|
757 | array_free_microshit (prepare); |
|
|
758 | array_free_microshit (check); |
|
|
759 | |
|
|
760 | method = 0; |
|
|
761 | } |
|
|
762 | |
|
|
763 | static void |
|
|
764 | loop_fork (EV_P) |
|
|
765 | { |
|
|
766 | #if EV_USE_EPOLL |
|
|
767 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
768 | #endif |
|
|
769 | #if EV_USE_KQUEUE |
|
|
770 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
771 | #endif |
|
|
772 | |
|
|
773 | if (ev_is_active (&sigev)) |
|
|
774 | { |
|
|
775 | /* default loop */ |
|
|
776 | |
|
|
777 | ev_ref (EV_A); |
|
|
778 | ev_io_stop (EV_A_ &sigev); |
|
|
779 | close (sigpipe [0]); |
|
|
780 | close (sigpipe [1]); |
|
|
781 | |
|
|
782 | while (pipe (sigpipe)) |
|
|
783 | syserr ("(libev) error creating pipe"); |
|
|
784 | |
|
|
785 | siginit (EV_A); |
|
|
786 | } |
|
|
787 | |
|
|
788 | postfork = 0; |
|
|
789 | } |
|
|
790 | |
|
|
791 | #if EV_MULTIPLICITY |
|
|
792 | struct ev_loop * |
|
|
793 | ev_loop_new (int methods) |
|
|
794 | { |
|
|
795 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
796 | |
|
|
797 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
798 | |
|
|
799 | loop_init (EV_A_ methods); |
|
|
800 | |
|
|
801 | if (ev_method (EV_A)) |
|
|
802 | return loop; |
|
|
803 | |
|
|
804 | return 0; |
|
|
805 | } |
|
|
806 | |
|
|
807 | void |
|
|
808 | ev_loop_destroy (EV_P) |
|
|
809 | { |
|
|
810 | loop_destroy (EV_A); |
|
|
811 | ev_free (loop); |
|
|
812 | } |
|
|
813 | |
|
|
814 | void |
|
|
815 | ev_loop_fork (EV_P) |
|
|
816 | { |
|
|
817 | postfork = 1; |
|
|
818 | } |
|
|
819 | |
|
|
820 | #endif |
|
|
821 | |
|
|
822 | #if EV_MULTIPLICITY |
|
|
823 | struct ev_loop default_loop_struct; |
|
|
824 | static struct ev_loop *default_loop; |
|
|
825 | |
|
|
826 | struct ev_loop * |
|
|
827 | #else |
|
|
828 | static int default_loop; |
|
|
829 | |
|
|
830 | int |
|
|
831 | #endif |
|
|
832 | ev_default_loop (int methods) |
|
|
833 | { |
|
|
834 | if (sigpipe [0] == sigpipe [1]) |
|
|
835 | if (pipe (sigpipe)) |
|
|
836 | return 0; |
|
|
837 | |
|
|
838 | if (!default_loop) |
|
|
839 | { |
|
|
840 | #if EV_MULTIPLICITY |
|
|
841 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
842 | #else |
|
|
843 | default_loop = 1; |
|
|
844 | #endif |
|
|
845 | |
|
|
846 | loop_init (EV_A_ methods); |
|
|
847 | |
554 | if (ev_method) |
848 | if (ev_method (EV_A)) |
555 | { |
849 | { |
556 | ev_watcher_init (&sigev, sigcb); |
|
|
557 | siginit (); |
850 | siginit (EV_A); |
558 | |
851 | |
|
|
852 | #ifndef WIN32 |
559 | ev_signal_init (&childev, childcb, SIGCHLD); |
853 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
854 | ev_set_priority (&childev, EV_MAXPRI); |
560 | ev_signal_start (&childev); |
855 | ev_signal_start (EV_A_ &childev); |
|
|
856 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
857 | #endif |
561 | } |
858 | } |
|
|
859 | else |
|
|
860 | default_loop = 0; |
562 | } |
861 | } |
563 | |
862 | |
564 | return ev_method; |
863 | return default_loop; |
|
|
864 | } |
|
|
865 | |
|
|
866 | void |
|
|
867 | ev_default_destroy (void) |
|
|
868 | { |
|
|
869 | #if EV_MULTIPLICITY |
|
|
870 | struct ev_loop *loop = default_loop; |
|
|
871 | #endif |
|
|
872 | |
|
|
873 | #ifndef WIN32 |
|
|
874 | ev_ref (EV_A); /* child watcher */ |
|
|
875 | ev_signal_stop (EV_A_ &childev); |
|
|
876 | #endif |
|
|
877 | |
|
|
878 | ev_ref (EV_A); /* signal watcher */ |
|
|
879 | ev_io_stop (EV_A_ &sigev); |
|
|
880 | |
|
|
881 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
882 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
883 | |
|
|
884 | loop_destroy (EV_A); |
|
|
885 | } |
|
|
886 | |
|
|
887 | void |
|
|
888 | ev_default_fork (void) |
|
|
889 | { |
|
|
890 | #if EV_MULTIPLICITY |
|
|
891 | struct ev_loop *loop = default_loop; |
|
|
892 | #endif |
|
|
893 | |
|
|
894 | if (method) |
|
|
895 | postfork = 1; |
565 | } |
896 | } |
566 | |
897 | |
567 | /*****************************************************************************/ |
898 | /*****************************************************************************/ |
568 | |
899 | |
569 | void |
|
|
570 | ev_fork_prepare (void) |
|
|
571 | { |
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|
572 | /* nop */ |
|
|
573 | } |
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|
574 | |
|
|
575 | void |
|
|
576 | ev_fork_parent (void) |
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|
577 | { |
|
|
578 | /* nop */ |
|
|
579 | } |
|
|
580 | |
|
|
581 | void |
|
|
582 | ev_fork_child (void) |
|
|
583 | { |
|
|
584 | #if EV_USE_EPOLL |
|
|
585 | if (ev_method == EVMETHOD_EPOLL) |
|
|
586 | epoll_postfork_child (); |
|
|
587 | #endif |
|
|
588 | |
|
|
589 | ev_io_stop (&sigev); |
|
|
590 | close (sigpipe [0]); |
|
|
591 | close (sigpipe [1]); |
|
|
592 | pipe (sigpipe); |
|
|
593 | siginit (); |
|
|
594 | } |
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|
595 | |
|
|
596 | /*****************************************************************************/ |
|
|
597 | |
|
|
598 | static void |
900 | static void |
599 | call_pending (void) |
901 | call_pending (EV_P) |
600 | { |
902 | { |
601 | int pri; |
903 | int pri; |
602 | |
904 | |
603 | for (pri = NUMPRI; pri--; ) |
905 | for (pri = NUMPRI; pri--; ) |
604 | while (pendingcnt [pri]) |
906 | while (pendingcnt [pri]) |
… | |
… | |
606 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
908 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
607 | |
909 | |
608 | if (p->w) |
910 | if (p->w) |
609 | { |
911 | { |
610 | p->w->pending = 0; |
912 | p->w->pending = 0; |
611 | p->w->cb (p->w, p->events); |
913 | p->w->cb (EV_A_ p->w, p->events); |
612 | } |
914 | } |
613 | } |
915 | } |
614 | } |
916 | } |
615 | |
917 | |
616 | static void |
918 | static void |
617 | timers_reify (void) |
919 | timers_reify (EV_P) |
618 | { |
920 | { |
619 | while (timercnt && timers [0]->at <= now) |
921 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
620 | { |
922 | { |
621 | struct ev_timer *w = timers [0]; |
923 | struct ev_timer *w = timers [0]; |
|
|
924 | |
|
|
925 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
622 | |
926 | |
623 | /* first reschedule or stop timer */ |
927 | /* first reschedule or stop timer */ |
624 | if (w->repeat) |
928 | if (w->repeat) |
625 | { |
929 | { |
626 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
930 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
627 | w->at = now + w->repeat; |
931 | ((WT)w)->at = mn_now + w->repeat; |
628 | downheap ((WT *)timers, timercnt, 0); |
932 | downheap ((WT *)timers, timercnt, 0); |
629 | } |
933 | } |
630 | else |
934 | else |
631 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
935 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
632 | |
936 | |
633 | event ((W)w, EV_TIMEOUT); |
937 | event (EV_A_ (W)w, EV_TIMEOUT); |
634 | } |
938 | } |
635 | } |
939 | } |
636 | |
940 | |
637 | static void |
941 | static void |
638 | periodics_reify (void) |
942 | periodics_reify (EV_P) |
639 | { |
943 | { |
640 | while (periodiccnt && periodics [0]->at <= ev_now) |
944 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
641 | { |
945 | { |
642 | struct ev_periodic *w = periodics [0]; |
946 | struct ev_periodic *w = periodics [0]; |
|
|
947 | |
|
|
948 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
643 | |
949 | |
644 | /* first reschedule or stop timer */ |
950 | /* first reschedule or stop timer */ |
645 | if (w->interval) |
951 | if (w->interval) |
646 | { |
952 | { |
647 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
953 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
648 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
954 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
649 | downheap ((WT *)periodics, periodiccnt, 0); |
955 | downheap ((WT *)periodics, periodiccnt, 0); |
650 | } |
956 | } |
651 | else |
957 | else |
652 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
958 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
653 | |
959 | |
654 | event ((W)w, EV_PERIODIC); |
960 | event (EV_A_ (W)w, EV_PERIODIC); |
655 | } |
961 | } |
656 | } |
962 | } |
657 | |
963 | |
658 | static void |
964 | static void |
659 | periodics_reschedule (ev_tstamp diff) |
965 | periodics_reschedule (EV_P) |
660 | { |
966 | { |
661 | int i; |
967 | int i; |
662 | |
968 | |
663 | /* adjust periodics after time jump */ |
969 | /* adjust periodics after time jump */ |
664 | for (i = 0; i < periodiccnt; ++i) |
970 | for (i = 0; i < periodiccnt; ++i) |
665 | { |
971 | { |
666 | struct ev_periodic *w = periodics [i]; |
972 | struct ev_periodic *w = periodics [i]; |
667 | |
973 | |
668 | if (w->interval) |
974 | if (w->interval) |
669 | { |
975 | { |
670 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
976 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
671 | |
977 | |
672 | if (fabs (diff) >= 1e-4) |
978 | if (fabs (diff) >= 1e-4) |
673 | { |
979 | { |
674 | ev_periodic_stop (w); |
980 | ev_periodic_stop (EV_A_ w); |
675 | ev_periodic_start (w); |
981 | ev_periodic_start (EV_A_ w); |
676 | |
982 | |
677 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
983 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
678 | } |
984 | } |
679 | } |
985 | } |
680 | } |
986 | } |
681 | } |
987 | } |
682 | |
988 | |
683 | static int |
989 | inline int |
684 | time_update_monotonic (void) |
990 | time_update_monotonic (EV_P) |
685 | { |
991 | { |
686 | now = get_clock (); |
992 | mn_now = get_clock (); |
687 | |
993 | |
688 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
994 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
689 | { |
995 | { |
690 | ev_now = now + diff; |
996 | rt_now = rtmn_diff + mn_now; |
691 | return 0; |
997 | return 0; |
692 | } |
998 | } |
693 | else |
999 | else |
694 | { |
1000 | { |
695 | now_floor = now; |
1001 | now_floor = mn_now; |
696 | ev_now = ev_time (); |
1002 | rt_now = ev_time (); |
697 | return 1; |
1003 | return 1; |
698 | } |
1004 | } |
699 | } |
1005 | } |
700 | |
1006 | |
701 | static void |
1007 | static void |
702 | time_update (void) |
1008 | time_update (EV_P) |
703 | { |
1009 | { |
704 | int i; |
1010 | int i; |
705 | |
1011 | |
706 | #if EV_USE_MONOTONIC |
1012 | #if EV_USE_MONOTONIC |
707 | if (expect_true (have_monotonic)) |
1013 | if (expect_true (have_monotonic)) |
708 | { |
1014 | { |
709 | if (time_update_monotonic ()) |
1015 | if (time_update_monotonic (EV_A)) |
710 | { |
1016 | { |
711 | ev_tstamp odiff = diff; |
1017 | ev_tstamp odiff = rtmn_diff; |
712 | |
1018 | |
713 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1019 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
714 | { |
1020 | { |
715 | diff = ev_now - now; |
1021 | rtmn_diff = rt_now - mn_now; |
716 | |
1022 | |
717 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1023 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
718 | return; /* all is well */ |
1024 | return; /* all is well */ |
719 | |
1025 | |
720 | ev_now = ev_time (); |
1026 | rt_now = ev_time (); |
721 | now = get_clock (); |
1027 | mn_now = get_clock (); |
722 | now_floor = now; |
1028 | now_floor = mn_now; |
723 | } |
1029 | } |
724 | |
1030 | |
725 | periodics_reschedule (diff - odiff); |
1031 | periodics_reschedule (EV_A); |
726 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1032 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1033 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
727 | } |
1034 | } |
728 | } |
1035 | } |
729 | else |
1036 | else |
730 | #endif |
1037 | #endif |
731 | { |
1038 | { |
732 | ev_now = ev_time (); |
1039 | rt_now = ev_time (); |
733 | |
1040 | |
734 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1041 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
735 | { |
1042 | { |
736 | periodics_reschedule (ev_now - now); |
1043 | periodics_reschedule (EV_A); |
737 | |
1044 | |
738 | /* adjust timers. this is easy, as the offset is the same for all */ |
1045 | /* adjust timers. this is easy, as the offset is the same for all */ |
739 | for (i = 0; i < timercnt; ++i) |
1046 | for (i = 0; i < timercnt; ++i) |
740 | timers [i]->at += diff; |
1047 | ((WT)timers [i])->at += rt_now - mn_now; |
741 | } |
1048 | } |
742 | |
1049 | |
743 | now = ev_now; |
1050 | mn_now = rt_now; |
744 | } |
1051 | } |
745 | } |
1052 | } |
746 | |
1053 | |
747 | int ev_loop_done; |
1054 | void |
|
|
1055 | ev_ref (EV_P) |
|
|
1056 | { |
|
|
1057 | ++activecnt; |
|
|
1058 | } |
748 | |
1059 | |
|
|
1060 | void |
|
|
1061 | ev_unref (EV_P) |
|
|
1062 | { |
|
|
1063 | --activecnt; |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | static int loop_done; |
|
|
1067 | |
|
|
1068 | void |
749 | void ev_loop (int flags) |
1069 | ev_loop (EV_P_ int flags) |
750 | { |
1070 | { |
751 | double block; |
1071 | double block; |
752 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1072 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
753 | |
1073 | |
754 | do |
1074 | do |
755 | { |
1075 | { |
756 | /* queue check watchers (and execute them) */ |
1076 | /* queue check watchers (and execute them) */ |
757 | if (expect_false (preparecnt)) |
1077 | if (expect_false (preparecnt)) |
758 | { |
1078 | { |
759 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1079 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
760 | call_pending (); |
1080 | call_pending (EV_A); |
761 | } |
1081 | } |
762 | |
1082 | |
|
|
1083 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1084 | if (expect_false (postfork)) |
|
|
1085 | loop_fork (EV_A); |
|
|
1086 | |
763 | /* update fd-related kernel structures */ |
1087 | /* update fd-related kernel structures */ |
764 | fd_reify (); |
1088 | fd_reify (EV_A); |
765 | |
1089 | |
766 | /* calculate blocking time */ |
1090 | /* calculate blocking time */ |
767 | |
1091 | |
768 | /* we only need this for !monotonic clockor timers, but as we basically |
1092 | /* we only need this for !monotonic clockor timers, but as we basically |
769 | always have timers, we just calculate it always */ |
1093 | always have timers, we just calculate it always */ |
770 | #if EV_USE_MONOTONIC |
1094 | #if EV_USE_MONOTONIC |
771 | if (expect_true (have_monotonic)) |
1095 | if (expect_true (have_monotonic)) |
772 | time_update_monotonic (); |
1096 | time_update_monotonic (EV_A); |
773 | else |
1097 | else |
774 | #endif |
1098 | #endif |
775 | { |
1099 | { |
776 | ev_now = ev_time (); |
1100 | rt_now = ev_time (); |
777 | now = ev_now; |
1101 | mn_now = rt_now; |
778 | } |
1102 | } |
779 | |
1103 | |
780 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1104 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
781 | block = 0.; |
1105 | block = 0.; |
782 | else |
1106 | else |
783 | { |
1107 | { |
784 | block = MAX_BLOCKTIME; |
1108 | block = MAX_BLOCKTIME; |
785 | |
1109 | |
786 | if (timercnt) |
1110 | if (timercnt) |
787 | { |
1111 | { |
788 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1112 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
789 | if (block > to) block = to; |
1113 | if (block > to) block = to; |
790 | } |
1114 | } |
791 | |
1115 | |
792 | if (periodiccnt) |
1116 | if (periodiccnt) |
793 | { |
1117 | { |
794 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1118 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
795 | if (block > to) block = to; |
1119 | if (block > to) block = to; |
796 | } |
1120 | } |
797 | |
1121 | |
798 | if (block < 0.) block = 0.; |
1122 | if (block < 0.) block = 0.; |
799 | } |
1123 | } |
800 | |
1124 | |
801 | method_poll (block); |
1125 | method_poll (EV_A_ block); |
802 | |
1126 | |
803 | /* update ev_now, do magic */ |
1127 | /* update rt_now, do magic */ |
804 | time_update (); |
1128 | time_update (EV_A); |
805 | |
1129 | |
806 | /* queue pending timers and reschedule them */ |
1130 | /* queue pending timers and reschedule them */ |
807 | timers_reify (); /* relative timers called last */ |
1131 | timers_reify (EV_A); /* relative timers called last */ |
808 | periodics_reify (); /* absolute timers called first */ |
1132 | periodics_reify (EV_A); /* absolute timers called first */ |
809 | |
1133 | |
810 | /* queue idle watchers unless io or timers are pending */ |
1134 | /* queue idle watchers unless io or timers are pending */ |
811 | if (!pendingcnt) |
1135 | if (!pendingcnt) |
812 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1136 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
813 | |
1137 | |
814 | /* queue check watchers, to be executed first */ |
1138 | /* queue check watchers, to be executed first */ |
815 | if (checkcnt) |
1139 | if (checkcnt) |
816 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1140 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
817 | |
1141 | |
818 | call_pending (); |
1142 | call_pending (EV_A); |
819 | } |
1143 | } |
820 | while (!ev_loop_done); |
1144 | while (activecnt && !loop_done); |
821 | |
1145 | |
822 | if (ev_loop_done != 2) |
1146 | if (loop_done != 2) |
823 | ev_loop_done = 0; |
1147 | loop_done = 0; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | void |
|
|
1151 | ev_unloop (EV_P_ int how) |
|
|
1152 | { |
|
|
1153 | loop_done = how; |
824 | } |
1154 | } |
825 | |
1155 | |
826 | /*****************************************************************************/ |
1156 | /*****************************************************************************/ |
827 | |
1157 | |
828 | static void |
1158 | inline void |
829 | wlist_add (WL *head, WL elem) |
1159 | wlist_add (WL *head, WL elem) |
830 | { |
1160 | { |
831 | elem->next = *head; |
1161 | elem->next = *head; |
832 | *head = elem; |
1162 | *head = elem; |
833 | } |
1163 | } |
834 | |
1164 | |
835 | static void |
1165 | inline void |
836 | wlist_del (WL *head, WL elem) |
1166 | wlist_del (WL *head, WL elem) |
837 | { |
1167 | { |
838 | while (*head) |
1168 | while (*head) |
839 | { |
1169 | { |
840 | if (*head == elem) |
1170 | if (*head == elem) |
… | |
… | |
845 | |
1175 | |
846 | head = &(*head)->next; |
1176 | head = &(*head)->next; |
847 | } |
1177 | } |
848 | } |
1178 | } |
849 | |
1179 | |
850 | static void |
1180 | inline void |
851 | ev_clear_pending (W w) |
1181 | ev_clear_pending (EV_P_ W w) |
852 | { |
1182 | { |
853 | if (w->pending) |
1183 | if (w->pending) |
854 | { |
1184 | { |
855 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1185 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
856 | w->pending = 0; |
1186 | w->pending = 0; |
857 | } |
1187 | } |
858 | } |
1188 | } |
859 | |
1189 | |
860 | static void |
1190 | inline void |
861 | ev_start (W w, int active) |
1191 | ev_start (EV_P_ W w, int active) |
862 | { |
1192 | { |
|
|
1193 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
1194 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1195 | |
863 | w->active = active; |
1196 | w->active = active; |
|
|
1197 | ev_ref (EV_A); |
864 | } |
1198 | } |
865 | |
1199 | |
866 | static void |
1200 | inline void |
867 | ev_stop (W w) |
1201 | ev_stop (EV_P_ W w) |
868 | { |
1202 | { |
|
|
1203 | ev_unref (EV_A); |
869 | w->active = 0; |
1204 | w->active = 0; |
870 | } |
1205 | } |
871 | |
1206 | |
872 | /*****************************************************************************/ |
1207 | /*****************************************************************************/ |
873 | |
1208 | |
874 | void |
1209 | void |
875 | ev_io_start (struct ev_io *w) |
1210 | ev_io_start (EV_P_ struct ev_io *w) |
876 | { |
1211 | { |
877 | int fd = w->fd; |
1212 | int fd = w->fd; |
878 | |
1213 | |
879 | if (ev_is_active (w)) |
1214 | if (ev_is_active (w)) |
880 | return; |
1215 | return; |
881 | |
1216 | |
882 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1217 | assert (("ev_io_start called with negative fd", fd >= 0)); |
883 | |
1218 | |
884 | ev_start ((W)w, 1); |
1219 | ev_start (EV_A_ (W)w, 1); |
885 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1220 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
886 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1221 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
887 | |
1222 | |
888 | fd_change (fd); |
1223 | fd_change (EV_A_ fd); |
889 | } |
1224 | } |
890 | |
1225 | |
891 | void |
1226 | void |
892 | ev_io_stop (struct ev_io *w) |
1227 | ev_io_stop (EV_P_ struct ev_io *w) |
893 | { |
1228 | { |
894 | ev_clear_pending ((W)w); |
1229 | ev_clear_pending (EV_A_ (W)w); |
895 | if (!ev_is_active (w)) |
1230 | if (!ev_is_active (w)) |
896 | return; |
1231 | return; |
897 | |
1232 | |
898 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1233 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
899 | ev_stop ((W)w); |
1234 | ev_stop (EV_A_ (W)w); |
900 | |
1235 | |
901 | fd_change (w->fd); |
1236 | fd_change (EV_A_ w->fd); |
902 | } |
1237 | } |
903 | |
1238 | |
904 | void |
1239 | void |
905 | ev_timer_start (struct ev_timer *w) |
1240 | ev_timer_start (EV_P_ struct ev_timer *w) |
906 | { |
1241 | { |
907 | if (ev_is_active (w)) |
1242 | if (ev_is_active (w)) |
908 | return; |
1243 | return; |
909 | |
1244 | |
910 | w->at += now; |
1245 | ((WT)w)->at += mn_now; |
911 | |
1246 | |
912 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1247 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
913 | |
1248 | |
914 | ev_start ((W)w, ++timercnt); |
1249 | ev_start (EV_A_ (W)w, ++timercnt); |
915 | array_needsize (timers, timermax, timercnt, ); |
1250 | array_needsize (timers, timermax, timercnt, (void)); |
916 | timers [timercnt - 1] = w; |
1251 | timers [timercnt - 1] = w; |
917 | upheap ((WT *)timers, timercnt - 1); |
1252 | upheap ((WT *)timers, timercnt - 1); |
918 | } |
|
|
919 | |
1253 | |
|
|
1254 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1255 | } |
|
|
1256 | |
920 | void |
1257 | void |
921 | ev_timer_stop (struct ev_timer *w) |
1258 | ev_timer_stop (EV_P_ struct ev_timer *w) |
922 | { |
1259 | { |
923 | ev_clear_pending ((W)w); |
1260 | ev_clear_pending (EV_A_ (W)w); |
924 | if (!ev_is_active (w)) |
1261 | if (!ev_is_active (w)) |
925 | return; |
1262 | return; |
926 | |
1263 | |
|
|
1264 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1265 | |
927 | if (w->active < timercnt--) |
1266 | if (((W)w)->active < timercnt--) |
928 | { |
1267 | { |
929 | timers [w->active - 1] = timers [timercnt]; |
1268 | timers [((W)w)->active - 1] = timers [timercnt]; |
930 | downheap ((WT *)timers, timercnt, w->active - 1); |
1269 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
931 | } |
1270 | } |
932 | |
1271 | |
933 | w->at = w->repeat; |
1272 | ((WT)w)->at = w->repeat; |
934 | |
1273 | |
935 | ev_stop ((W)w); |
1274 | ev_stop (EV_A_ (W)w); |
936 | } |
1275 | } |
937 | |
1276 | |
938 | void |
1277 | void |
939 | ev_timer_again (struct ev_timer *w) |
1278 | ev_timer_again (EV_P_ struct ev_timer *w) |
940 | { |
1279 | { |
941 | if (ev_is_active (w)) |
1280 | if (ev_is_active (w)) |
942 | { |
1281 | { |
943 | if (w->repeat) |
1282 | if (w->repeat) |
944 | { |
1283 | { |
945 | w->at = now + w->repeat; |
1284 | ((WT)w)->at = mn_now + w->repeat; |
946 | downheap ((WT *)timers, timercnt, w->active - 1); |
1285 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
947 | } |
1286 | } |
948 | else |
1287 | else |
949 | ev_timer_stop (w); |
1288 | ev_timer_stop (EV_A_ w); |
950 | } |
1289 | } |
951 | else if (w->repeat) |
1290 | else if (w->repeat) |
952 | ev_timer_start (w); |
1291 | ev_timer_start (EV_A_ w); |
953 | } |
1292 | } |
954 | |
1293 | |
955 | void |
1294 | void |
956 | ev_periodic_start (struct ev_periodic *w) |
1295 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
957 | { |
1296 | { |
958 | if (ev_is_active (w)) |
1297 | if (ev_is_active (w)) |
959 | return; |
1298 | return; |
960 | |
1299 | |
961 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1300 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
962 | |
1301 | |
963 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1302 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
964 | if (w->interval) |
1303 | if (w->interval) |
965 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1304 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
966 | |
1305 | |
967 | ev_start ((W)w, ++periodiccnt); |
1306 | ev_start (EV_A_ (W)w, ++periodiccnt); |
968 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1307 | array_needsize (periodics, periodicmax, periodiccnt, (void)); |
969 | periodics [periodiccnt - 1] = w; |
1308 | periodics [periodiccnt - 1] = w; |
970 | upheap ((WT *)periodics, periodiccnt - 1); |
1309 | upheap ((WT *)periodics, periodiccnt - 1); |
971 | } |
|
|
972 | |
1310 | |
|
|
1311 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1312 | } |
|
|
1313 | |
973 | void |
1314 | void |
974 | ev_periodic_stop (struct ev_periodic *w) |
1315 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
975 | { |
1316 | { |
976 | ev_clear_pending ((W)w); |
1317 | ev_clear_pending (EV_A_ (W)w); |
977 | if (!ev_is_active (w)) |
1318 | if (!ev_is_active (w)) |
978 | return; |
1319 | return; |
979 | |
1320 | |
|
|
1321 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1322 | |
980 | if (w->active < periodiccnt--) |
1323 | if (((W)w)->active < periodiccnt--) |
981 | { |
1324 | { |
982 | periodics [w->active - 1] = periodics [periodiccnt]; |
1325 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
983 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1326 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
984 | } |
1327 | } |
985 | |
1328 | |
986 | ev_stop ((W)w); |
1329 | ev_stop (EV_A_ (W)w); |
987 | } |
1330 | } |
988 | |
1331 | |
989 | void |
1332 | void |
990 | ev_signal_start (struct ev_signal *w) |
1333 | ev_idle_start (EV_P_ struct ev_idle *w) |
991 | { |
1334 | { |
992 | if (ev_is_active (w)) |
1335 | if (ev_is_active (w)) |
993 | return; |
1336 | return; |
994 | |
1337 | |
|
|
1338 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1339 | array_needsize (idles, idlemax, idlecnt, (void)); |
|
|
1340 | idles [idlecnt - 1] = w; |
|
|
1341 | } |
|
|
1342 | |
|
|
1343 | void |
|
|
1344 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1345 | { |
|
|
1346 | ev_clear_pending (EV_A_ (W)w); |
|
|
1347 | if (ev_is_active (w)) |
|
|
1348 | return; |
|
|
1349 | |
|
|
1350 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1351 | ev_stop (EV_A_ (W)w); |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | void |
|
|
1355 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1356 | { |
|
|
1357 | if (ev_is_active (w)) |
|
|
1358 | return; |
|
|
1359 | |
|
|
1360 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1361 | array_needsize (prepares, preparemax, preparecnt, (void)); |
|
|
1362 | prepares [preparecnt - 1] = w; |
|
|
1363 | } |
|
|
1364 | |
|
|
1365 | void |
|
|
1366 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1367 | { |
|
|
1368 | ev_clear_pending (EV_A_ (W)w); |
|
|
1369 | if (ev_is_active (w)) |
|
|
1370 | return; |
|
|
1371 | |
|
|
1372 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1373 | ev_stop (EV_A_ (W)w); |
|
|
1374 | } |
|
|
1375 | |
|
|
1376 | void |
|
|
1377 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1378 | { |
|
|
1379 | if (ev_is_active (w)) |
|
|
1380 | return; |
|
|
1381 | |
|
|
1382 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1383 | array_needsize (checks, checkmax, checkcnt, (void)); |
|
|
1384 | checks [checkcnt - 1] = w; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | void |
|
|
1388 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1389 | { |
|
|
1390 | ev_clear_pending (EV_A_ (W)w); |
|
|
1391 | if (ev_is_active (w)) |
|
|
1392 | return; |
|
|
1393 | |
|
|
1394 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1395 | ev_stop (EV_A_ (W)w); |
|
|
1396 | } |
|
|
1397 | |
|
|
1398 | #ifndef SA_RESTART |
|
|
1399 | # define SA_RESTART 0 |
|
|
1400 | #endif |
|
|
1401 | |
|
|
1402 | void |
|
|
1403 | ev_signal_start (EV_P_ struct ev_signal *w) |
|
|
1404 | { |
|
|
1405 | #if EV_MULTIPLICITY |
|
|
1406 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1407 | #endif |
|
|
1408 | if (ev_is_active (w)) |
|
|
1409 | return; |
|
|
1410 | |
995 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1411 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
996 | |
1412 | |
997 | ev_start ((W)w, 1); |
1413 | ev_start (EV_A_ (W)w, 1); |
998 | array_needsize (signals, signalmax, w->signum, signals_init); |
1414 | array_needsize (signals, signalmax, w->signum, signals_init); |
999 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1415 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1000 | |
1416 | |
1001 | if (!w->next) |
1417 | if (!((WL)w)->next) |
1002 | { |
1418 | { |
|
|
1419 | #if WIN32 |
|
|
1420 | signal (w->signum, sighandler); |
|
|
1421 | #else |
1003 | struct sigaction sa; |
1422 | struct sigaction sa; |
1004 | sa.sa_handler = sighandler; |
1423 | sa.sa_handler = sighandler; |
1005 | sigfillset (&sa.sa_mask); |
1424 | sigfillset (&sa.sa_mask); |
1006 | sa.sa_flags = 0; |
1425 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1007 | sigaction (w->signum, &sa, 0); |
1426 | sigaction (w->signum, &sa, 0); |
|
|
1427 | #endif |
1008 | } |
1428 | } |
1009 | } |
1429 | } |
1010 | |
1430 | |
1011 | void |
1431 | void |
1012 | ev_signal_stop (struct ev_signal *w) |
1432 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1013 | { |
1433 | { |
1014 | ev_clear_pending ((W)w); |
1434 | ev_clear_pending (EV_A_ (W)w); |
1015 | if (!ev_is_active (w)) |
1435 | if (!ev_is_active (w)) |
1016 | return; |
1436 | return; |
1017 | |
1437 | |
1018 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1438 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1019 | ev_stop ((W)w); |
1439 | ev_stop (EV_A_ (W)w); |
1020 | |
1440 | |
1021 | if (!signals [w->signum - 1].head) |
1441 | if (!signals [w->signum - 1].head) |
1022 | signal (w->signum, SIG_DFL); |
1442 | signal (w->signum, SIG_DFL); |
1023 | } |
1443 | } |
1024 | |
1444 | |
1025 | void |
1445 | void |
1026 | ev_idle_start (struct ev_idle *w) |
1446 | ev_child_start (EV_P_ struct ev_child *w) |
1027 | { |
1447 | { |
|
|
1448 | #if EV_MULTIPLICITY |
|
|
1449 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1450 | #endif |
1028 | if (ev_is_active (w)) |
1451 | if (ev_is_active (w)) |
1029 | return; |
1452 | return; |
1030 | |
1453 | |
1031 | ev_start ((W)w, ++idlecnt); |
1454 | ev_start (EV_A_ (W)w, 1); |
1032 | array_needsize (idles, idlemax, idlecnt, ); |
1455 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1033 | idles [idlecnt - 1] = w; |
|
|
1034 | } |
1456 | } |
1035 | |
1457 | |
1036 | void |
1458 | void |
1037 | ev_idle_stop (struct ev_idle *w) |
1459 | ev_child_stop (EV_P_ struct ev_child *w) |
1038 | { |
1460 | { |
1039 | ev_clear_pending ((W)w); |
1461 | ev_clear_pending (EV_A_ (W)w); |
1040 | if (ev_is_active (w)) |
1462 | if (ev_is_active (w)) |
1041 | return; |
1463 | return; |
1042 | |
1464 | |
1043 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1044 | ev_stop ((W)w); |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | void |
|
|
1048 | ev_prepare_start (struct ev_prepare *w) |
|
|
1049 | { |
|
|
1050 | if (ev_is_active (w)) |
|
|
1051 | return; |
|
|
1052 | |
|
|
1053 | ev_start ((W)w, ++preparecnt); |
|
|
1054 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1055 | prepares [preparecnt - 1] = w; |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | void |
|
|
1059 | ev_prepare_stop (struct ev_prepare *w) |
|
|
1060 | { |
|
|
1061 | ev_clear_pending ((W)w); |
|
|
1062 | if (ev_is_active (w)) |
|
|
1063 | return; |
|
|
1064 | |
|
|
1065 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1066 | ev_stop ((W)w); |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | void |
|
|
1070 | ev_check_start (struct ev_check *w) |
|
|
1071 | { |
|
|
1072 | if (ev_is_active (w)) |
|
|
1073 | return; |
|
|
1074 | |
|
|
1075 | ev_start ((W)w, ++checkcnt); |
|
|
1076 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1077 | checks [checkcnt - 1] = w; |
|
|
1078 | } |
|
|
1079 | |
|
|
1080 | void |
|
|
1081 | ev_check_stop (struct ev_check *w) |
|
|
1082 | { |
|
|
1083 | ev_clear_pending ((W)w); |
|
|
1084 | if (ev_is_active (w)) |
|
|
1085 | return; |
|
|
1086 | |
|
|
1087 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1088 | ev_stop ((W)w); |
|
|
1089 | } |
|
|
1090 | |
|
|
1091 | void |
|
|
1092 | ev_child_start (struct ev_child *w) |
|
|
1093 | { |
|
|
1094 | if (ev_is_active (w)) |
|
|
1095 | return; |
|
|
1096 | |
|
|
1097 | ev_start ((W)w, 1); |
|
|
1098 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | void |
|
|
1102 | ev_child_stop (struct ev_child *w) |
|
|
1103 | { |
|
|
1104 | ev_clear_pending ((W)w); |
|
|
1105 | if (ev_is_active (w)) |
|
|
1106 | return; |
|
|
1107 | |
|
|
1108 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1465 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1109 | ev_stop ((W)w); |
1466 | ev_stop (EV_A_ (W)w); |
1110 | } |
1467 | } |
1111 | |
1468 | |
1112 | /*****************************************************************************/ |
1469 | /*****************************************************************************/ |
1113 | |
1470 | |
1114 | struct ev_once |
1471 | struct ev_once |
… | |
… | |
1118 | void (*cb)(int revents, void *arg); |
1475 | void (*cb)(int revents, void *arg); |
1119 | void *arg; |
1476 | void *arg; |
1120 | }; |
1477 | }; |
1121 | |
1478 | |
1122 | static void |
1479 | static void |
1123 | once_cb (struct ev_once *once, int revents) |
1480 | once_cb (EV_P_ struct ev_once *once, int revents) |
1124 | { |
1481 | { |
1125 | void (*cb)(int revents, void *arg) = once->cb; |
1482 | void (*cb)(int revents, void *arg) = once->cb; |
1126 | void *arg = once->arg; |
1483 | void *arg = once->arg; |
1127 | |
1484 | |
1128 | ev_io_stop (&once->io); |
1485 | ev_io_stop (EV_A_ &once->io); |
1129 | ev_timer_stop (&once->to); |
1486 | ev_timer_stop (EV_A_ &once->to); |
1130 | free (once); |
1487 | ev_free (once); |
1131 | |
1488 | |
1132 | cb (revents, arg); |
1489 | cb (revents, arg); |
1133 | } |
1490 | } |
1134 | |
1491 | |
1135 | static void |
1492 | static void |
1136 | once_cb_io (struct ev_io *w, int revents) |
1493 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1137 | { |
1494 | { |
1138 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1495 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1139 | } |
1496 | } |
1140 | |
1497 | |
1141 | static void |
1498 | static void |
1142 | once_cb_to (struct ev_timer *w, int revents) |
1499 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1143 | { |
1500 | { |
1144 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1501 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1145 | } |
1502 | } |
1146 | |
1503 | |
1147 | void |
1504 | void |
1148 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1505 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1149 | { |
1506 | { |
1150 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1507 | struct ev_once *once = ev_malloc (sizeof (struct ev_once)); |
1151 | |
1508 | |
1152 | if (!once) |
1509 | if (!once) |
1153 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1510 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1154 | else |
1511 | else |
1155 | { |
1512 | { |
… | |
… | |
1158 | |
1515 | |
1159 | ev_watcher_init (&once->io, once_cb_io); |
1516 | ev_watcher_init (&once->io, once_cb_io); |
1160 | if (fd >= 0) |
1517 | if (fd >= 0) |
1161 | { |
1518 | { |
1162 | ev_io_set (&once->io, fd, events); |
1519 | ev_io_set (&once->io, fd, events); |
1163 | ev_io_start (&once->io); |
1520 | ev_io_start (EV_A_ &once->io); |
1164 | } |
1521 | } |
1165 | |
1522 | |
1166 | ev_watcher_init (&once->to, once_cb_to); |
1523 | ev_watcher_init (&once->to, once_cb_to); |
1167 | if (timeout >= 0.) |
1524 | if (timeout >= 0.) |
1168 | { |
1525 | { |
1169 | ev_timer_set (&once->to, timeout, 0.); |
1526 | ev_timer_set (&once->to, timeout, 0.); |
1170 | ev_timer_start (&once->to); |
1527 | ev_timer_start (EV_A_ &once->to); |
1171 | } |
1528 | } |
1172 | } |
1529 | } |
1173 | } |
1530 | } |
1174 | |
1531 | |
1175 | /*****************************************************************************/ |
|
|
1176 | |
|
|
1177 | #if 0 |
|
|
1178 | |
|
|
1179 | struct ev_io wio; |
|
|
1180 | |
|
|
1181 | static void |
|
|
1182 | sin_cb (struct ev_io *w, int revents) |
|
|
1183 | { |
|
|
1184 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | static void |
|
|
1188 | ocb (struct ev_timer *w, int revents) |
|
|
1189 | { |
|
|
1190 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1191 | ev_timer_stop (w); |
|
|
1192 | ev_timer_start (w); |
|
|
1193 | } |
|
|
1194 | |
|
|
1195 | static void |
|
|
1196 | scb (struct ev_signal *w, int revents) |
|
|
1197 | { |
|
|
1198 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1199 | ev_io_stop (&wio); |
|
|
1200 | ev_io_start (&wio); |
|
|
1201 | } |
|
|
1202 | |
|
|
1203 | static void |
|
|
1204 | gcb (struct ev_signal *w, int revents) |
|
|
1205 | { |
|
|
1206 | fprintf (stderr, "generic %x\n", revents); |
|
|
1207 | |
|
|
1208 | } |
|
|
1209 | |
|
|
1210 | int main (void) |
|
|
1211 | { |
|
|
1212 | ev_init (0); |
|
|
1213 | |
|
|
1214 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1215 | ev_io_start (&wio); |
|
|
1216 | |
|
|
1217 | struct ev_timer t[10000]; |
|
|
1218 | |
|
|
1219 | #if 0 |
|
|
1220 | int i; |
|
|
1221 | for (i = 0; i < 10000; ++i) |
|
|
1222 | { |
|
|
1223 | struct ev_timer *w = t + i; |
|
|
1224 | ev_watcher_init (w, ocb, i); |
|
|
1225 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1226 | ev_timer_start (w); |
|
|
1227 | if (drand48 () < 0.5) |
|
|
1228 | ev_timer_stop (w); |
|
|
1229 | } |
|
|
1230 | #endif |
|
|
1231 | |
|
|
1232 | struct ev_timer t1; |
|
|
1233 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1234 | ev_timer_start (&t1); |
|
|
1235 | |
|
|
1236 | struct ev_signal sig; |
|
|
1237 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1238 | ev_signal_start (&sig); |
|
|
1239 | |
|
|
1240 | struct ev_check cw; |
|
|
1241 | ev_check_init (&cw, gcb); |
|
|
1242 | ev_check_start (&cw); |
|
|
1243 | |
|
|
1244 | struct ev_idle iw; |
|
|
1245 | ev_idle_init (&iw, gcb); |
|
|
1246 | ev_idle_start (&iw); |
|
|
1247 | |
|
|
1248 | ev_loop (0); |
|
|
1249 | |
|
|
1250 | return 0; |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | #endif |
|
|
1254 | |
|
|
1255 | |
|
|
1256 | |
|
|
1257 | |
|
|