… | |
… | |
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> |
|
|
67 | #include <time.h> |
|
|
68 | |
|
|
69 | #include <signal.h> |
|
|
70 | |
47 | #ifndef WIN32 |
71 | #ifndef WIN32 |
|
|
72 | # include <unistd.h> |
|
|
73 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
74 | # include <sys/wait.h> |
49 | #endif |
75 | #endif |
50 | #include <sys/time.h> |
|
|
51 | #include <time.h> |
|
|
52 | |
|
|
53 | /**/ |
76 | /**/ |
54 | |
77 | |
55 | #ifndef EV_USE_MONOTONIC |
78 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
79 | # define EV_USE_MONOTONIC 1 |
57 | #endif |
80 | #endif |
… | |
… | |
68 | # define EV_USE_EPOLL 0 |
91 | # define EV_USE_EPOLL 0 |
69 | #endif |
92 | #endif |
70 | |
93 | |
71 | #ifndef EV_USE_KQUEUE |
94 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
95 | # define EV_USE_KQUEUE 0 |
|
|
96 | #endif |
|
|
97 | |
|
|
98 | #ifndef EV_USE_WIN32 |
|
|
99 | # ifdef WIN32 |
|
|
100 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
|
|
101 | # undef EV_USE_SELECT |
|
|
102 | # define EV_USE_SELECT 1 |
|
|
103 | # else |
|
|
104 | # define EV_USE_WIN32 0 |
|
|
105 | # endif |
73 | #endif |
106 | #endif |
74 | |
107 | |
75 | #ifndef EV_USE_REALTIME |
108 | #ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 1 |
109 | # define EV_USE_REALTIME 1 |
77 | #endif |
110 | #endif |
… | |
… | |
113 | |
146 | |
114 | typedef struct ev_watcher *W; |
147 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
148 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
149 | typedef struct ev_watcher_time *WT; |
117 | |
150 | |
118 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
151 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
119 | ev_tstamp ev_now; |
|
|
120 | int ev_method; |
|
|
121 | |
152 | |
122 | static int have_monotonic; /* runtime */ |
153 | #if WIN32 |
|
|
154 | /* note: the comment below could not be substantiated, but what would I care */ |
|
|
155 | /* MSDN says this is required to handle SIGFPE */ |
|
|
156 | volatile double SIGFPE_REQ = 0.0f; |
123 | |
157 | |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
158 | static int |
125 | static void (*method_modify)(int fd, int oev, int nev); |
159 | ev_socketpair_tcp (int filedes [2]) |
126 | static void (*method_poll)(ev_tstamp timeout); |
160 | { |
|
|
161 | struct sockaddr_in addr = { 0 }; |
|
|
162 | int addr_size = sizeof (addr); |
|
|
163 | SOCKET listener; |
|
|
164 | SOCKET sock [2] = { -1, -1 }; |
|
|
165 | |
|
|
166 | if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) |
|
|
167 | return -1; |
|
|
168 | |
|
|
169 | addr.sin_family = AF_INET; |
|
|
170 | addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); |
|
|
171 | addr.sin_port = 0; |
|
|
172 | |
|
|
173 | if (bind (listener, (struct sockaddr *)&addr, addr_size)) |
|
|
174 | goto fail; |
|
|
175 | |
|
|
176 | if (getsockname(listener, (struct sockaddr *)&addr, &addr_size)) |
|
|
177 | goto fail; |
|
|
178 | |
|
|
179 | if (listen (listener, 1)) |
|
|
180 | goto fail; |
|
|
181 | |
|
|
182 | if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) |
|
|
183 | goto fail; |
|
|
184 | |
|
|
185 | if (connect (sock[0], (struct sockaddr *)&addr, addr_size)) |
|
|
186 | goto fail; |
|
|
187 | |
|
|
188 | if ((sock[1] = accept (listener, 0, 0)) < 0) |
|
|
189 | goto fail; |
|
|
190 | |
|
|
191 | closesocket (listener); |
|
|
192 | |
|
|
193 | filedes [0] = sock [0]; |
|
|
194 | filedes [1] = sock [1]; |
|
|
195 | |
|
|
196 | return 0; |
|
|
197 | |
|
|
198 | fail: |
|
|
199 | closesocket (listener); |
|
|
200 | |
|
|
201 | if (sock [0] != INVALID_SOCKET) closesocket (sock [0]); |
|
|
202 | if (sock [1] != INVALID_SOCKET) closesocket (sock [1]); |
|
|
203 | |
|
|
204 | return -1; |
|
|
205 | } |
|
|
206 | |
|
|
207 | # define ev_pipe(filedes) ev_socketpair_tcp (filedes) |
|
|
208 | #else |
|
|
209 | # define ev_pipe(filedes) pipe (filedes) |
|
|
210 | #endif |
127 | |
211 | |
128 | /*****************************************************************************/ |
212 | /*****************************************************************************/ |
129 | |
213 | |
130 | ev_tstamp |
214 | static void (*syserr_cb)(const char *msg); |
|
|
215 | |
|
|
216 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
217 | { |
|
|
218 | syserr_cb = cb; |
|
|
219 | } |
|
|
220 | |
|
|
221 | static void |
|
|
222 | syserr (const char *msg) |
|
|
223 | { |
|
|
224 | if (!msg) |
|
|
225 | msg = "(libev) system error"; |
|
|
226 | |
|
|
227 | if (syserr_cb) |
|
|
228 | syserr_cb (msg); |
|
|
229 | else |
|
|
230 | { |
|
|
231 | perror (msg); |
|
|
232 | abort (); |
|
|
233 | } |
|
|
234 | } |
|
|
235 | |
|
|
236 | static void *(*alloc)(void *ptr, long size); |
|
|
237 | |
|
|
238 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
239 | { |
|
|
240 | alloc = cb; |
|
|
241 | } |
|
|
242 | |
|
|
243 | static void * |
|
|
244 | ev_realloc (void *ptr, long size) |
|
|
245 | { |
|
|
246 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
247 | |
|
|
248 | if (!ptr && size) |
|
|
249 | { |
|
|
250 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
251 | abort (); |
|
|
252 | } |
|
|
253 | |
|
|
254 | return ptr; |
|
|
255 | } |
|
|
256 | |
|
|
257 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
258 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
259 | |
|
|
260 | /*****************************************************************************/ |
|
|
261 | |
|
|
262 | typedef struct |
|
|
263 | { |
|
|
264 | WL head; |
|
|
265 | unsigned char events; |
|
|
266 | unsigned char reify; |
|
|
267 | } ANFD; |
|
|
268 | |
|
|
269 | typedef struct |
|
|
270 | { |
|
|
271 | W w; |
|
|
272 | int events; |
|
|
273 | } ANPENDING; |
|
|
274 | |
|
|
275 | #if EV_MULTIPLICITY |
|
|
276 | |
|
|
277 | struct ev_loop |
|
|
278 | { |
|
|
279 | # define VAR(name,decl) decl; |
|
|
280 | # include "ev_vars.h" |
|
|
281 | }; |
|
|
282 | # undef VAR |
|
|
283 | # include "ev_wrap.h" |
|
|
284 | |
|
|
285 | #else |
|
|
286 | |
|
|
287 | # define VAR(name,decl) static decl; |
|
|
288 | # include "ev_vars.h" |
|
|
289 | # undef VAR |
|
|
290 | |
|
|
291 | #endif |
|
|
292 | |
|
|
293 | /*****************************************************************************/ |
|
|
294 | |
|
|
295 | inline ev_tstamp |
131 | ev_time (void) |
296 | ev_time (void) |
132 | { |
297 | { |
133 | #if EV_USE_REALTIME |
298 | #if EV_USE_REALTIME |
134 | struct timespec ts; |
299 | struct timespec ts; |
135 | clock_gettime (CLOCK_REALTIME, &ts); |
300 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
139 | gettimeofday (&tv, 0); |
304 | gettimeofday (&tv, 0); |
140 | return tv.tv_sec + tv.tv_usec * 1e-6; |
305 | return tv.tv_sec + tv.tv_usec * 1e-6; |
141 | #endif |
306 | #endif |
142 | } |
307 | } |
143 | |
308 | |
144 | static ev_tstamp |
309 | inline ev_tstamp |
145 | get_clock (void) |
310 | get_clock (void) |
146 | { |
311 | { |
147 | #if EV_USE_MONOTONIC |
312 | #if EV_USE_MONOTONIC |
148 | if (expect_true (have_monotonic)) |
313 | if (expect_true (have_monotonic)) |
149 | { |
314 | { |
… | |
… | |
154 | #endif |
319 | #endif |
155 | |
320 | |
156 | return ev_time (); |
321 | return ev_time (); |
157 | } |
322 | } |
158 | |
323 | |
|
|
324 | ev_tstamp |
|
|
325 | ev_now (EV_P) |
|
|
326 | { |
|
|
327 | return rt_now; |
|
|
328 | } |
|
|
329 | |
159 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
330 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
160 | |
331 | |
161 | #define array_needsize(base,cur,cnt,init) \ |
332 | #define array_needsize(base,cur,cnt,init) \ |
162 | if (expect_false ((cnt) > cur)) \ |
333 | if (expect_false ((cnt) > cur)) \ |
163 | { \ |
334 | { \ |
164 | int newcnt = cur; \ |
335 | int newcnt = cur; \ |
165 | do \ |
336 | do \ |
166 | { \ |
337 | { \ |
167 | newcnt = array_roundsize (base, newcnt << 1); \ |
338 | newcnt = array_roundsize (base, newcnt << 1); \ |
168 | } \ |
339 | } \ |
169 | while ((cnt) > newcnt); \ |
340 | while ((cnt) > newcnt); \ |
170 | \ |
341 | \ |
171 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
342 | base = ev_realloc (base, sizeof (*base) * (newcnt)); \ |
172 | init (base + cur, newcnt - cur); \ |
343 | init (base + cur, newcnt - cur); \ |
173 | cur = newcnt; \ |
344 | cur = newcnt; \ |
174 | } |
345 | } |
|
|
346 | |
|
|
347 | #define array_slim(stem) \ |
|
|
348 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
349 | { \ |
|
|
350 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
351 | base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ |
|
|
352 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
353 | } |
|
|
354 | |
|
|
355 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
356 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
357 | #define array_free_microshit(stem) \ |
|
|
358 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
359 | |
|
|
360 | #define array_free(stem, idx) \ |
|
|
361 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
175 | |
362 | |
176 | /*****************************************************************************/ |
363 | /*****************************************************************************/ |
177 | |
|
|
178 | typedef struct |
|
|
179 | { |
|
|
180 | struct ev_io *head; |
|
|
181 | unsigned char events; |
|
|
182 | unsigned char reify; |
|
|
183 | } ANFD; |
|
|
184 | |
|
|
185 | static ANFD *anfds; |
|
|
186 | static int anfdmax; |
|
|
187 | |
364 | |
188 | static void |
365 | static void |
189 | anfds_init (ANFD *base, int count) |
366 | anfds_init (ANFD *base, int count) |
190 | { |
367 | { |
191 | while (count--) |
368 | while (count--) |
… | |
… | |
196 | |
373 | |
197 | ++base; |
374 | ++base; |
198 | } |
375 | } |
199 | } |
376 | } |
200 | |
377 | |
201 | typedef struct |
|
|
202 | { |
|
|
203 | W w; |
|
|
204 | int events; |
|
|
205 | } ANPENDING; |
|
|
206 | |
|
|
207 | static ANPENDING *pendings [NUMPRI]; |
|
|
208 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
209 | |
|
|
210 | static void |
378 | static void |
211 | event (W w, int events) |
379 | event (EV_P_ W w, int events) |
212 | { |
380 | { |
213 | if (w->pending) |
381 | if (w->pending) |
214 | { |
382 | { |
215 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
383 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
216 | return; |
384 | return; |
217 | } |
385 | } |
218 | |
386 | |
219 | w->pending = ++pendingcnt [ABSPRI (w)]; |
387 | w->pending = ++pendingcnt [ABSPRI (w)]; |
220 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
388 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); |
221 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
389 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
222 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
390 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
223 | } |
391 | } |
224 | |
392 | |
225 | static void |
393 | static void |
226 | queue_events (W *events, int eventcnt, int type) |
394 | queue_events (EV_P_ W *events, int eventcnt, int type) |
227 | { |
395 | { |
228 | int i; |
396 | int i; |
229 | |
397 | |
230 | for (i = 0; i < eventcnt; ++i) |
398 | for (i = 0; i < eventcnt; ++i) |
231 | event (events [i], type); |
399 | event (EV_A_ events [i], type); |
232 | } |
400 | } |
233 | |
401 | |
234 | static void |
402 | static void |
235 | fd_event (int fd, int events) |
403 | fd_event (EV_P_ int fd, int events) |
236 | { |
404 | { |
237 | ANFD *anfd = anfds + fd; |
405 | ANFD *anfd = anfds + fd; |
238 | struct ev_io *w; |
406 | struct ev_io *w; |
239 | |
407 | |
240 | for (w = anfd->head; w; w = w->next) |
408 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
241 | { |
409 | { |
242 | int ev = w->events & events; |
410 | int ev = w->events & events; |
243 | |
411 | |
244 | if (ev) |
412 | if (ev) |
245 | event ((W)w, ev); |
413 | event (EV_A_ (W)w, ev); |
246 | } |
414 | } |
247 | } |
415 | } |
248 | |
416 | |
249 | /*****************************************************************************/ |
417 | /*****************************************************************************/ |
250 | |
418 | |
251 | static int *fdchanges; |
|
|
252 | static int fdchangemax, fdchangecnt; |
|
|
253 | |
|
|
254 | static void |
419 | static void |
255 | fd_reify (void) |
420 | fd_reify (EV_P) |
256 | { |
421 | { |
257 | int i; |
422 | int i; |
258 | |
423 | |
259 | for (i = 0; i < fdchangecnt; ++i) |
424 | for (i = 0; i < fdchangecnt; ++i) |
260 | { |
425 | { |
… | |
… | |
262 | ANFD *anfd = anfds + fd; |
427 | ANFD *anfd = anfds + fd; |
263 | struct ev_io *w; |
428 | struct ev_io *w; |
264 | |
429 | |
265 | int events = 0; |
430 | int events = 0; |
266 | |
431 | |
267 | for (w = anfd->head; w; w = w->next) |
432 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
268 | events |= w->events; |
433 | events |= w->events; |
269 | |
434 | |
270 | anfd->reify = 0; |
435 | anfd->reify = 0; |
271 | |
436 | |
272 | if (anfd->events != events) |
|
|
273 | { |
|
|
274 | method_modify (fd, anfd->events, events); |
437 | method_modify (EV_A_ fd, anfd->events, events); |
275 | anfd->events = events; |
438 | anfd->events = events; |
276 | } |
|
|
277 | } |
439 | } |
278 | |
440 | |
279 | fdchangecnt = 0; |
441 | fdchangecnt = 0; |
280 | } |
442 | } |
281 | |
443 | |
282 | static void |
444 | static void |
283 | fd_change (int fd) |
445 | fd_change (EV_P_ int fd) |
284 | { |
446 | { |
285 | if (anfds [fd].reify || fdchangecnt < 0) |
447 | if (anfds [fd].reify) |
286 | return; |
448 | return; |
287 | |
449 | |
288 | anfds [fd].reify = 1; |
450 | anfds [fd].reify = 1; |
289 | |
451 | |
290 | ++fdchangecnt; |
452 | ++fdchangecnt; |
291 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
453 | array_needsize (fdchanges, fdchangemax, fdchangecnt, (void)); |
292 | fdchanges [fdchangecnt - 1] = fd; |
454 | fdchanges [fdchangecnt - 1] = fd; |
293 | } |
455 | } |
294 | |
456 | |
295 | static void |
457 | static void |
296 | fd_kill (int fd) |
458 | fd_kill (EV_P_ int fd) |
297 | { |
459 | { |
298 | struct ev_io *w; |
460 | struct ev_io *w; |
299 | |
461 | |
300 | printf ("killing fd %d\n", fd);//D |
|
|
301 | while ((w = anfds [fd].head)) |
462 | while ((w = (struct ev_io *)anfds [fd].head)) |
302 | { |
463 | { |
303 | ev_io_stop (w); |
464 | ev_io_stop (EV_A_ w); |
304 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
465 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
305 | } |
466 | } |
|
|
467 | } |
|
|
468 | |
|
|
469 | static int |
|
|
470 | fd_valid (int fd) |
|
|
471 | { |
|
|
472 | #ifdef WIN32 |
|
|
473 | return !!win32_get_osfhandle (fd); |
|
|
474 | #else |
|
|
475 | return fcntl (fd, F_GETFD) != -1; |
|
|
476 | #endif |
306 | } |
477 | } |
307 | |
478 | |
308 | /* called on EBADF to verify fds */ |
479 | /* called on EBADF to verify fds */ |
309 | static void |
480 | static void |
310 | fd_ebadf (void) |
481 | fd_ebadf (EV_P) |
311 | { |
482 | { |
312 | int fd; |
483 | int fd; |
313 | |
484 | |
314 | for (fd = 0; fd < anfdmax; ++fd) |
485 | for (fd = 0; fd < anfdmax; ++fd) |
315 | if (anfds [fd].events) |
486 | if (anfds [fd].events) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
487 | if (!fd_valid (fd) == -1 && errno == EBADF) |
317 | fd_kill (fd); |
488 | fd_kill (EV_A_ fd); |
318 | } |
489 | } |
319 | |
490 | |
320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
491 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
321 | static void |
492 | static void |
322 | fd_enomem (void) |
493 | fd_enomem (EV_P) |
323 | { |
494 | { |
324 | int fd = anfdmax; |
495 | int fd; |
325 | |
496 | |
326 | while (fd--) |
497 | for (fd = anfdmax; fd--; ) |
327 | if (anfds [fd].events) |
498 | if (anfds [fd].events) |
328 | { |
499 | { |
329 | close (fd); |
|
|
330 | fd_kill (fd); |
500 | fd_kill (EV_A_ fd); |
331 | return; |
501 | return; |
332 | } |
502 | } |
333 | } |
503 | } |
334 | |
504 | |
|
|
505 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
506 | static void |
|
|
507 | fd_rearm_all (EV_P) |
|
|
508 | { |
|
|
509 | int fd; |
|
|
510 | |
|
|
511 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
512 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
513 | if (anfds [fd].events) |
|
|
514 | { |
|
|
515 | anfds [fd].events = 0; |
|
|
516 | fd_change (EV_A_ fd); |
|
|
517 | } |
|
|
518 | } |
|
|
519 | |
335 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
336 | |
521 | |
337 | static struct ev_timer **timers; |
|
|
338 | static int timermax, timercnt; |
|
|
339 | |
|
|
340 | static struct ev_periodic **periodics; |
|
|
341 | static int periodicmax, periodiccnt; |
|
|
342 | |
|
|
343 | static void |
522 | static void |
344 | upheap (WT *timers, int k) |
523 | upheap (WT *heap, int k) |
345 | { |
524 | { |
346 | WT w = timers [k]; |
525 | WT w = heap [k]; |
347 | |
526 | |
348 | while (k && timers [k >> 1]->at > w->at) |
527 | while (k && heap [k >> 1]->at > w->at) |
349 | { |
528 | { |
350 | timers [k] = timers [k >> 1]; |
529 | heap [k] = heap [k >> 1]; |
351 | timers [k]->active = k + 1; |
530 | ((W)heap [k])->active = k + 1; |
352 | k >>= 1; |
531 | k >>= 1; |
353 | } |
532 | } |
354 | |
533 | |
355 | timers [k] = w; |
534 | heap [k] = w; |
356 | timers [k]->active = k + 1; |
535 | ((W)heap [k])->active = k + 1; |
357 | |
536 | |
358 | } |
537 | } |
359 | |
538 | |
360 | static void |
539 | static void |
361 | downheap (WT *timers, int N, int k) |
540 | downheap (WT *heap, int N, int k) |
362 | { |
541 | { |
363 | WT w = timers [k]; |
542 | WT w = heap [k]; |
364 | |
543 | |
365 | while (k < (N >> 1)) |
544 | while (k < (N >> 1)) |
366 | { |
545 | { |
367 | int j = k << 1; |
546 | int j = k << 1; |
368 | |
547 | |
369 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
548 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
370 | ++j; |
549 | ++j; |
371 | |
550 | |
372 | if (w->at <= timers [j]->at) |
551 | if (w->at <= heap [j]->at) |
373 | break; |
552 | break; |
374 | |
553 | |
375 | timers [k] = timers [j]; |
554 | heap [k] = heap [j]; |
376 | timers [k]->active = k + 1; |
555 | ((W)heap [k])->active = k + 1; |
377 | k = j; |
556 | k = j; |
378 | } |
557 | } |
379 | |
558 | |
380 | timers [k] = w; |
559 | heap [k] = w; |
381 | timers [k]->active = k + 1; |
560 | ((W)heap [k])->active = k + 1; |
382 | } |
561 | } |
383 | |
562 | |
384 | /*****************************************************************************/ |
563 | /*****************************************************************************/ |
385 | |
564 | |
386 | typedef struct |
565 | typedef struct |
387 | { |
566 | { |
388 | struct ev_signal *head; |
567 | WL head; |
389 | sig_atomic_t volatile gotsig; |
568 | sig_atomic_t volatile gotsig; |
390 | } ANSIG; |
569 | } ANSIG; |
391 | |
570 | |
392 | static ANSIG *signals; |
571 | static ANSIG *signals; |
393 | static int signalmax; |
572 | static int signalmax; |
… | |
… | |
409 | } |
588 | } |
410 | |
589 | |
411 | static void |
590 | static void |
412 | sighandler (int signum) |
591 | sighandler (int signum) |
413 | { |
592 | { |
|
|
593 | #if WIN32 |
|
|
594 | signal (signum, sighandler); |
|
|
595 | #endif |
|
|
596 | |
414 | signals [signum - 1].gotsig = 1; |
597 | signals [signum - 1].gotsig = 1; |
415 | |
598 | |
416 | if (!gotsig) |
599 | if (!gotsig) |
417 | { |
600 | { |
|
|
601 | int old_errno = errno; |
418 | gotsig = 1; |
602 | gotsig = 1; |
419 | write (sigpipe [1], &signum, 1); |
603 | write (sigpipe [1], &signum, 1); |
|
|
604 | errno = old_errno; |
420 | } |
605 | } |
421 | } |
606 | } |
422 | |
607 | |
423 | static void |
608 | static void |
424 | sigcb (struct ev_io *iow, int revents) |
609 | sigcb (EV_P_ struct ev_io *iow, int revents) |
425 | { |
610 | { |
426 | struct ev_signal *w; |
611 | WL w; |
427 | int signum; |
612 | int signum; |
428 | |
613 | |
429 | read (sigpipe [0], &revents, 1); |
614 | read (sigpipe [0], &revents, 1); |
430 | gotsig = 0; |
615 | gotsig = 0; |
431 | |
616 | |
… | |
… | |
433 | if (signals [signum].gotsig) |
618 | if (signals [signum].gotsig) |
434 | { |
619 | { |
435 | signals [signum].gotsig = 0; |
620 | signals [signum].gotsig = 0; |
436 | |
621 | |
437 | for (w = signals [signum].head; w; w = w->next) |
622 | for (w = signals [signum].head; w; w = w->next) |
438 | event ((W)w, EV_SIGNAL); |
623 | event (EV_A_ (W)w, EV_SIGNAL); |
439 | } |
624 | } |
440 | } |
625 | } |
441 | |
626 | |
442 | static void |
627 | static void |
443 | siginit (void) |
628 | siginit (EV_P) |
444 | { |
629 | { |
445 | #ifndef WIN32 |
630 | #ifndef WIN32 |
446 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
631 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
447 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
632 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
448 | |
633 | |
… | |
… | |
450 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
635 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
451 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
636 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
452 | #endif |
637 | #endif |
453 | |
638 | |
454 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
639 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
455 | ev_io_start (&sigev); |
640 | ev_io_start (EV_A_ &sigev); |
|
|
641 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
456 | } |
642 | } |
457 | |
643 | |
458 | /*****************************************************************************/ |
644 | /*****************************************************************************/ |
459 | |
645 | |
460 | static struct ev_idle **idles; |
|
|
461 | static int idlemax, idlecnt; |
|
|
462 | |
|
|
463 | static struct ev_prepare **prepares; |
|
|
464 | static int preparemax, preparecnt; |
|
|
465 | |
|
|
466 | static struct ev_check **checks; |
|
|
467 | static int checkmax, checkcnt; |
|
|
468 | |
|
|
469 | /*****************************************************************************/ |
|
|
470 | |
|
|
471 | static struct ev_child *childs [PID_HASHSIZE]; |
646 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
647 | |
|
|
648 | #ifndef WIN32 |
|
|
649 | |
472 | static struct ev_signal childev; |
650 | static struct ev_signal childev; |
473 | |
|
|
474 | #ifndef WIN32 |
|
|
475 | |
651 | |
476 | #ifndef WCONTINUED |
652 | #ifndef WCONTINUED |
477 | # define WCONTINUED 0 |
653 | # define WCONTINUED 0 |
478 | #endif |
654 | #endif |
479 | |
655 | |
480 | static void |
656 | static void |
481 | child_reap (struct ev_signal *sw, int chain, int pid, int status) |
657 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
482 | { |
658 | { |
483 | struct ev_child *w; |
659 | struct ev_child *w; |
484 | |
660 | |
485 | for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next) |
661 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
486 | if (w->pid == pid || !w->pid) |
662 | if (w->pid == pid || !w->pid) |
487 | { |
663 | { |
488 | w->priority = sw->priority; /* need to do it *now* */ |
664 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
489 | w->rpid = pid; |
665 | w->rpid = pid; |
490 | w->rstatus = status; |
666 | w->rstatus = status; |
491 | printf ("rpid %p %d %d\n", w, pid, w->pid);//D |
|
|
492 | event ((W)w, EV_CHILD); |
667 | event (EV_A_ (W)w, EV_CHILD); |
493 | } |
668 | } |
494 | } |
669 | } |
495 | |
670 | |
496 | static void |
671 | static void |
497 | childcb (struct ev_signal *sw, int revents) |
672 | childcb (EV_P_ struct ev_signal *sw, int revents) |
498 | { |
673 | { |
499 | int pid, status; |
674 | int pid, status; |
500 | |
675 | |
501 | printf ("chld %x\n", revents);//D |
|
|
502 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
676 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
503 | { |
677 | { |
504 | /* make sure we are called again until all childs have been reaped */ |
678 | /* make sure we are called again until all childs have been reaped */ |
505 | event ((W)sw, EV_SIGNAL); |
679 | event (EV_A_ (W)sw, EV_SIGNAL); |
506 | |
680 | |
507 | child_reap (sw, pid, pid, status); |
681 | child_reap (EV_A_ sw, pid, pid, status); |
508 | child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
682 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
509 | } |
683 | } |
510 | } |
684 | } |
511 | |
685 | |
512 | #endif |
686 | #endif |
513 | |
687 | |
… | |
… | |
536 | ev_version_minor (void) |
710 | ev_version_minor (void) |
537 | { |
711 | { |
538 | return EV_VERSION_MINOR; |
712 | return EV_VERSION_MINOR; |
539 | } |
713 | } |
540 | |
714 | |
541 | /* return true if we are running with elevated privileges and ignore env variables */ |
715 | /* return true if we are running with elevated privileges and should ignore env variables */ |
542 | static int |
716 | static int |
543 | enable_secure () |
717 | enable_secure (void) |
544 | { |
718 | { |
|
|
719 | #ifdef WIN32 |
|
|
720 | return 0; |
|
|
721 | #else |
545 | return getuid () != geteuid () |
722 | return getuid () != geteuid () |
546 | || getgid () != getegid (); |
723 | || getgid () != getegid (); |
|
|
724 | #endif |
547 | } |
725 | } |
548 | |
726 | |
549 | int ev_init (int methods) |
727 | int |
|
|
728 | ev_method (EV_P) |
550 | { |
729 | { |
|
|
730 | return method; |
|
|
731 | } |
|
|
732 | |
|
|
733 | static void |
|
|
734 | loop_init (EV_P_ int methods) |
|
|
735 | { |
551 | if (!ev_method) |
736 | if (!method) |
552 | { |
737 | { |
553 | #if EV_USE_MONOTONIC |
738 | #if EV_USE_MONOTONIC |
554 | { |
739 | { |
555 | struct timespec ts; |
740 | struct timespec ts; |
556 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
741 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
557 | have_monotonic = 1; |
742 | have_monotonic = 1; |
558 | } |
743 | } |
559 | #endif |
744 | #endif |
560 | |
745 | |
561 | ev_now = ev_time (); |
746 | rt_now = ev_time (); |
562 | now = get_clock (); |
747 | mn_now = get_clock (); |
563 | now_floor = now; |
748 | now_floor = mn_now; |
564 | diff = ev_now - now; |
749 | rtmn_diff = rt_now - mn_now; |
565 | |
|
|
566 | if (pipe (sigpipe)) |
|
|
567 | return 0; |
|
|
568 | |
750 | |
569 | if (methods == EVMETHOD_AUTO) |
751 | if (methods == EVMETHOD_AUTO) |
570 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
752 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
571 | methods = atoi (getenv ("LIBEV_METHODS")); |
753 | methods = atoi (getenv ("LIBEV_METHODS")); |
572 | else |
754 | else |
573 | methods = EVMETHOD_ANY; |
755 | methods = EVMETHOD_ANY; |
574 | |
756 | |
575 | ev_method = 0; |
757 | method = 0; |
|
|
758 | #if EV_USE_WIN32 |
|
|
759 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
|
|
760 | #endif |
576 | #if EV_USE_KQUEUE |
761 | #if EV_USE_KQUEUE |
577 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
762 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
578 | #endif |
763 | #endif |
579 | #if EV_USE_EPOLL |
764 | #if EV_USE_EPOLL |
580 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
765 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
581 | #endif |
766 | #endif |
582 | #if EV_USE_POLL |
767 | #if EV_USE_POLL |
583 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
768 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
584 | #endif |
769 | #endif |
585 | #if EV_USE_SELECT |
770 | #if EV_USE_SELECT |
586 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
771 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
587 | #endif |
772 | #endif |
588 | |
773 | |
|
|
774 | ev_watcher_init (&sigev, sigcb); |
|
|
775 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
776 | } |
|
|
777 | } |
|
|
778 | |
|
|
779 | void |
|
|
780 | loop_destroy (EV_P) |
|
|
781 | { |
|
|
782 | int i; |
|
|
783 | |
|
|
784 | #if EV_USE_WIN32 |
|
|
785 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
|
|
786 | #endif |
|
|
787 | #if EV_USE_KQUEUE |
|
|
788 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
789 | #endif |
|
|
790 | #if EV_USE_EPOLL |
|
|
791 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
792 | #endif |
|
|
793 | #if EV_USE_POLL |
|
|
794 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
795 | #endif |
|
|
796 | #if EV_USE_SELECT |
|
|
797 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
798 | #endif |
|
|
799 | |
|
|
800 | for (i = NUMPRI; i--; ) |
|
|
801 | array_free (pending, [i]); |
|
|
802 | |
|
|
803 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
804 | array_free_microshit (fdchange); |
|
|
805 | array_free_microshit (timer); |
|
|
806 | array_free_microshit (periodic); |
|
|
807 | array_free_microshit (idle); |
|
|
808 | array_free_microshit (prepare); |
|
|
809 | array_free_microshit (check); |
|
|
810 | |
|
|
811 | method = 0; |
|
|
812 | } |
|
|
813 | |
|
|
814 | static void |
|
|
815 | loop_fork (EV_P) |
|
|
816 | { |
|
|
817 | #if EV_USE_EPOLL |
|
|
818 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
819 | #endif |
|
|
820 | #if EV_USE_KQUEUE |
|
|
821 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
822 | #endif |
|
|
823 | |
|
|
824 | if (ev_is_active (&sigev)) |
|
|
825 | { |
|
|
826 | /* default loop */ |
|
|
827 | |
|
|
828 | ev_ref (EV_A); |
|
|
829 | ev_io_stop (EV_A_ &sigev); |
|
|
830 | close (sigpipe [0]); |
|
|
831 | close (sigpipe [1]); |
|
|
832 | |
|
|
833 | while (ev_pipe (sigpipe)) |
|
|
834 | syserr ("(libev) error creating pipe"); |
|
|
835 | |
|
|
836 | siginit (EV_A); |
|
|
837 | } |
|
|
838 | |
|
|
839 | postfork = 0; |
|
|
840 | } |
|
|
841 | |
|
|
842 | #if EV_MULTIPLICITY |
|
|
843 | struct ev_loop * |
|
|
844 | ev_loop_new (int methods) |
|
|
845 | { |
|
|
846 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
847 | |
|
|
848 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
849 | |
|
|
850 | loop_init (EV_A_ methods); |
|
|
851 | |
|
|
852 | if (ev_method (EV_A)) |
|
|
853 | return loop; |
|
|
854 | |
|
|
855 | return 0; |
|
|
856 | } |
|
|
857 | |
|
|
858 | void |
|
|
859 | ev_loop_destroy (EV_P) |
|
|
860 | { |
|
|
861 | loop_destroy (EV_A); |
|
|
862 | ev_free (loop); |
|
|
863 | } |
|
|
864 | |
|
|
865 | void |
|
|
866 | ev_loop_fork (EV_P) |
|
|
867 | { |
|
|
868 | postfork = 1; |
|
|
869 | } |
|
|
870 | |
|
|
871 | #endif |
|
|
872 | |
|
|
873 | #if EV_MULTIPLICITY |
|
|
874 | struct ev_loop default_loop_struct; |
|
|
875 | static struct ev_loop *default_loop; |
|
|
876 | |
|
|
877 | struct ev_loop * |
|
|
878 | #else |
|
|
879 | static int default_loop; |
|
|
880 | |
|
|
881 | int |
|
|
882 | #endif |
|
|
883 | ev_default_loop (int methods) |
|
|
884 | { |
|
|
885 | if (sigpipe [0] == sigpipe [1]) |
|
|
886 | if (ev_pipe (sigpipe)) |
|
|
887 | return 0; |
|
|
888 | |
|
|
889 | if (!default_loop) |
|
|
890 | { |
|
|
891 | #if EV_MULTIPLICITY |
|
|
892 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
893 | #else |
|
|
894 | default_loop = 1; |
|
|
895 | #endif |
|
|
896 | |
|
|
897 | loop_init (EV_A_ methods); |
|
|
898 | |
589 | if (ev_method) |
899 | if (ev_method (EV_A)) |
590 | { |
900 | { |
591 | ev_watcher_init (&sigev, sigcb); |
|
|
592 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
593 | siginit (); |
901 | siginit (EV_A); |
594 | |
902 | |
595 | #ifndef WIN32 |
903 | #ifndef WIN32 |
596 | ev_signal_init (&childev, childcb, SIGCHLD); |
904 | ev_signal_init (&childev, childcb, SIGCHLD); |
597 | ev_set_priority (&childev, EV_MAXPRI); |
905 | ev_set_priority (&childev, EV_MAXPRI); |
598 | ev_signal_start (&childev); |
906 | ev_signal_start (EV_A_ &childev); |
|
|
907 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
599 | #endif |
908 | #endif |
600 | } |
909 | } |
|
|
910 | else |
|
|
911 | default_loop = 0; |
601 | } |
912 | } |
602 | |
913 | |
603 | return ev_method; |
914 | return default_loop; |
|
|
915 | } |
|
|
916 | |
|
|
917 | void |
|
|
918 | ev_default_destroy (void) |
|
|
919 | { |
|
|
920 | #if EV_MULTIPLICITY |
|
|
921 | struct ev_loop *loop = default_loop; |
|
|
922 | #endif |
|
|
923 | |
|
|
924 | #ifndef WIN32 |
|
|
925 | ev_ref (EV_A); /* child watcher */ |
|
|
926 | ev_signal_stop (EV_A_ &childev); |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | ev_ref (EV_A); /* signal watcher */ |
|
|
930 | ev_io_stop (EV_A_ &sigev); |
|
|
931 | |
|
|
932 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
933 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
934 | |
|
|
935 | loop_destroy (EV_A); |
|
|
936 | } |
|
|
937 | |
|
|
938 | void |
|
|
939 | ev_default_fork (void) |
|
|
940 | { |
|
|
941 | #if EV_MULTIPLICITY |
|
|
942 | struct ev_loop *loop = default_loop; |
|
|
943 | #endif |
|
|
944 | |
|
|
945 | if (method) |
|
|
946 | postfork = 1; |
604 | } |
947 | } |
605 | |
948 | |
606 | /*****************************************************************************/ |
949 | /*****************************************************************************/ |
607 | |
950 | |
608 | void |
|
|
609 | ev_fork_prepare (void) |
|
|
610 | { |
|
|
611 | /* nop */ |
|
|
612 | } |
|
|
613 | |
|
|
614 | void |
|
|
615 | ev_fork_parent (void) |
|
|
616 | { |
|
|
617 | /* nop */ |
|
|
618 | } |
|
|
619 | |
|
|
620 | void |
|
|
621 | ev_fork_child (void) |
|
|
622 | { |
|
|
623 | #if EV_USE_EPOLL |
|
|
624 | if (ev_method == EVMETHOD_EPOLL) |
|
|
625 | epoll_postfork_child (); |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | ev_io_stop (&sigev); |
|
|
629 | close (sigpipe [0]); |
|
|
630 | close (sigpipe [1]); |
|
|
631 | pipe (sigpipe); |
|
|
632 | siginit (); |
|
|
633 | } |
|
|
634 | |
|
|
635 | /*****************************************************************************/ |
|
|
636 | |
|
|
637 | static void |
951 | static void |
638 | call_pending (void) |
952 | call_pending (EV_P) |
639 | { |
953 | { |
640 | int pri; |
954 | int pri; |
641 | |
955 | |
642 | for (pri = NUMPRI; pri--; ) |
956 | for (pri = NUMPRI; pri--; ) |
643 | while (pendingcnt [pri]) |
957 | while (pendingcnt [pri]) |
… | |
… | |
645 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
959 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
646 | |
960 | |
647 | if (p->w) |
961 | if (p->w) |
648 | { |
962 | { |
649 | p->w->pending = 0; |
963 | p->w->pending = 0; |
650 | p->w->cb (p->w, p->events); |
964 | p->w->cb (EV_A_ p->w, p->events); |
651 | } |
965 | } |
652 | } |
966 | } |
653 | } |
967 | } |
654 | |
968 | |
655 | static void |
969 | static void |
656 | timers_reify (void) |
970 | timers_reify (EV_P) |
657 | { |
971 | { |
658 | while (timercnt && timers [0]->at <= now) |
972 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
659 | { |
973 | { |
660 | struct ev_timer *w = timers [0]; |
974 | struct ev_timer *w = timers [0]; |
|
|
975 | |
|
|
976 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
661 | |
977 | |
662 | /* first reschedule or stop timer */ |
978 | /* first reschedule or stop timer */ |
663 | if (w->repeat) |
979 | if (w->repeat) |
664 | { |
980 | { |
665 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
981 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
666 | w->at = now + w->repeat; |
982 | ((WT)w)->at = mn_now + w->repeat; |
667 | downheap ((WT *)timers, timercnt, 0); |
983 | downheap ((WT *)timers, timercnt, 0); |
668 | } |
984 | } |
669 | else |
985 | else |
670 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
986 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
671 | |
987 | |
672 | event ((W)w, EV_TIMEOUT); |
988 | event (EV_A_ (W)w, EV_TIMEOUT); |
673 | } |
989 | } |
674 | } |
990 | } |
675 | |
991 | |
676 | static void |
992 | static void |
677 | periodics_reify (void) |
993 | periodics_reify (EV_P) |
678 | { |
994 | { |
679 | while (periodiccnt && periodics [0]->at <= ev_now) |
995 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
680 | { |
996 | { |
681 | struct ev_periodic *w = periodics [0]; |
997 | struct ev_periodic *w = periodics [0]; |
|
|
998 | |
|
|
999 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
682 | |
1000 | |
683 | /* first reschedule or stop timer */ |
1001 | /* first reschedule or stop timer */ |
684 | if (w->interval) |
1002 | if (w->interval) |
685 | { |
1003 | { |
686 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1004 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
687 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1005 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
688 | downheap ((WT *)periodics, periodiccnt, 0); |
1006 | downheap ((WT *)periodics, periodiccnt, 0); |
689 | } |
1007 | } |
690 | else |
1008 | else |
691 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1009 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
692 | |
1010 | |
693 | event ((W)w, EV_PERIODIC); |
1011 | event (EV_A_ (W)w, EV_PERIODIC); |
694 | } |
1012 | } |
695 | } |
1013 | } |
696 | |
1014 | |
697 | static void |
1015 | static void |
698 | periodics_reschedule (ev_tstamp diff) |
1016 | periodics_reschedule (EV_P) |
699 | { |
1017 | { |
700 | int i; |
1018 | int i; |
701 | |
1019 | |
702 | /* adjust periodics after time jump */ |
1020 | /* adjust periodics after time jump */ |
703 | for (i = 0; i < periodiccnt; ++i) |
1021 | for (i = 0; i < periodiccnt; ++i) |
704 | { |
1022 | { |
705 | struct ev_periodic *w = periodics [i]; |
1023 | struct ev_periodic *w = periodics [i]; |
706 | |
1024 | |
707 | if (w->interval) |
1025 | if (w->interval) |
708 | { |
1026 | { |
709 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1027 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
710 | |
1028 | |
711 | if (fabs (diff) >= 1e-4) |
1029 | if (fabs (diff) >= 1e-4) |
712 | { |
1030 | { |
713 | ev_periodic_stop (w); |
1031 | ev_periodic_stop (EV_A_ w); |
714 | ev_periodic_start (w); |
1032 | ev_periodic_start (EV_A_ w); |
715 | |
1033 | |
716 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
1034 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
717 | } |
1035 | } |
718 | } |
1036 | } |
719 | } |
1037 | } |
720 | } |
1038 | } |
721 | |
1039 | |
722 | static int |
1040 | inline int |
723 | time_update_monotonic (void) |
1041 | time_update_monotonic (EV_P) |
724 | { |
1042 | { |
725 | now = get_clock (); |
1043 | mn_now = get_clock (); |
726 | |
1044 | |
727 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
1045 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
728 | { |
1046 | { |
729 | ev_now = now + diff; |
1047 | rt_now = rtmn_diff + mn_now; |
730 | return 0; |
1048 | return 0; |
731 | } |
1049 | } |
732 | else |
1050 | else |
733 | { |
1051 | { |
734 | now_floor = now; |
1052 | now_floor = mn_now; |
735 | ev_now = ev_time (); |
1053 | rt_now = ev_time (); |
736 | return 1; |
1054 | return 1; |
737 | } |
1055 | } |
738 | } |
1056 | } |
739 | |
1057 | |
740 | static void |
1058 | static void |
741 | time_update (void) |
1059 | time_update (EV_P) |
742 | { |
1060 | { |
743 | int i; |
1061 | int i; |
744 | |
1062 | |
745 | #if EV_USE_MONOTONIC |
1063 | #if EV_USE_MONOTONIC |
746 | if (expect_true (have_monotonic)) |
1064 | if (expect_true (have_monotonic)) |
747 | { |
1065 | { |
748 | if (time_update_monotonic ()) |
1066 | if (time_update_monotonic (EV_A)) |
749 | { |
1067 | { |
750 | ev_tstamp odiff = diff; |
1068 | ev_tstamp odiff = rtmn_diff; |
751 | |
1069 | |
752 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1070 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
753 | { |
1071 | { |
754 | diff = ev_now - now; |
1072 | rtmn_diff = rt_now - mn_now; |
755 | |
1073 | |
756 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1074 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
757 | return; /* all is well */ |
1075 | return; /* all is well */ |
758 | |
1076 | |
759 | ev_now = ev_time (); |
1077 | rt_now = ev_time (); |
760 | now = get_clock (); |
1078 | mn_now = get_clock (); |
761 | now_floor = now; |
1079 | now_floor = mn_now; |
762 | } |
1080 | } |
763 | |
1081 | |
764 | periodics_reschedule (diff - odiff); |
1082 | periodics_reschedule (EV_A); |
765 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1083 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1084 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
766 | } |
1085 | } |
767 | } |
1086 | } |
768 | else |
1087 | else |
769 | #endif |
1088 | #endif |
770 | { |
1089 | { |
771 | ev_now = ev_time (); |
1090 | rt_now = ev_time (); |
772 | |
1091 | |
773 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1092 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
774 | { |
1093 | { |
775 | periodics_reschedule (ev_now - now); |
1094 | periodics_reschedule (EV_A); |
776 | |
1095 | |
777 | /* adjust timers. this is easy, as the offset is the same for all */ |
1096 | /* adjust timers. this is easy, as the offset is the same for all */ |
778 | for (i = 0; i < timercnt; ++i) |
1097 | for (i = 0; i < timercnt; ++i) |
779 | timers [i]->at += diff; |
1098 | ((WT)timers [i])->at += rt_now - mn_now; |
780 | } |
1099 | } |
781 | |
1100 | |
782 | now = ev_now; |
1101 | mn_now = rt_now; |
783 | } |
1102 | } |
784 | } |
1103 | } |
785 | |
1104 | |
786 | int ev_loop_done; |
1105 | void |
|
|
1106 | ev_ref (EV_P) |
|
|
1107 | { |
|
|
1108 | ++activecnt; |
|
|
1109 | } |
787 | |
1110 | |
|
|
1111 | void |
|
|
1112 | ev_unref (EV_P) |
|
|
1113 | { |
|
|
1114 | --activecnt; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | static int loop_done; |
|
|
1118 | |
|
|
1119 | void |
788 | void ev_loop (int flags) |
1120 | ev_loop (EV_P_ int flags) |
789 | { |
1121 | { |
790 | double block; |
1122 | double block; |
791 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1123 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
792 | |
1124 | |
793 | do |
1125 | do |
794 | { |
1126 | { |
795 | /* queue check watchers (and execute them) */ |
1127 | /* queue check watchers (and execute them) */ |
796 | if (expect_false (preparecnt)) |
1128 | if (expect_false (preparecnt)) |
797 | { |
1129 | { |
798 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1130 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
799 | call_pending (); |
1131 | call_pending (EV_A); |
800 | } |
1132 | } |
801 | |
1133 | |
|
|
1134 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1135 | if (expect_false (postfork)) |
|
|
1136 | loop_fork (EV_A); |
|
|
1137 | |
802 | /* update fd-related kernel structures */ |
1138 | /* update fd-related kernel structures */ |
803 | fd_reify (); |
1139 | fd_reify (EV_A); |
804 | |
1140 | |
805 | /* calculate blocking time */ |
1141 | /* calculate blocking time */ |
806 | |
1142 | |
807 | /* we only need this for !monotonic clockor timers, but as we basically |
1143 | /* we only need this for !monotonic clockor timers, but as we basically |
808 | always have timers, we just calculate it always */ |
1144 | always have timers, we just calculate it always */ |
809 | #if EV_USE_MONOTONIC |
1145 | #if EV_USE_MONOTONIC |
810 | if (expect_true (have_monotonic)) |
1146 | if (expect_true (have_monotonic)) |
811 | time_update_monotonic (); |
1147 | time_update_monotonic (EV_A); |
812 | else |
1148 | else |
813 | #endif |
1149 | #endif |
814 | { |
1150 | { |
815 | ev_now = ev_time (); |
1151 | rt_now = ev_time (); |
816 | now = ev_now; |
1152 | mn_now = rt_now; |
817 | } |
1153 | } |
818 | |
1154 | |
819 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1155 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
820 | block = 0.; |
1156 | block = 0.; |
821 | else |
1157 | else |
822 | { |
1158 | { |
823 | block = MAX_BLOCKTIME; |
1159 | block = MAX_BLOCKTIME; |
824 | |
1160 | |
825 | if (timercnt) |
1161 | if (timercnt) |
826 | { |
1162 | { |
827 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1163 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
828 | if (block > to) block = to; |
1164 | if (block > to) block = to; |
829 | } |
1165 | } |
830 | |
1166 | |
831 | if (periodiccnt) |
1167 | if (periodiccnt) |
832 | { |
1168 | { |
833 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1169 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
834 | if (block > to) block = to; |
1170 | if (block > to) block = to; |
835 | } |
1171 | } |
836 | |
1172 | |
837 | if (block < 0.) block = 0.; |
1173 | if (block < 0.) block = 0.; |
838 | } |
1174 | } |
839 | |
1175 | |
840 | method_poll (block); |
1176 | method_poll (EV_A_ block); |
841 | |
1177 | |
842 | /* update ev_now, do magic */ |
1178 | /* update rt_now, do magic */ |
843 | time_update (); |
1179 | time_update (EV_A); |
844 | |
1180 | |
845 | /* queue pending timers and reschedule them */ |
1181 | /* queue pending timers and reschedule them */ |
846 | timers_reify (); /* relative timers called last */ |
1182 | timers_reify (EV_A); /* relative timers called last */ |
847 | periodics_reify (); /* absolute timers called first */ |
1183 | periodics_reify (EV_A); /* absolute timers called first */ |
848 | |
1184 | |
849 | /* queue idle watchers unless io or timers are pending */ |
1185 | /* queue idle watchers unless io or timers are pending */ |
850 | if (!pendingcnt) |
1186 | if (!pendingcnt) |
851 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1187 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
852 | |
1188 | |
853 | /* queue check watchers, to be executed first */ |
1189 | /* queue check watchers, to be executed first */ |
854 | if (checkcnt) |
1190 | if (checkcnt) |
855 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1191 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
856 | |
1192 | |
857 | call_pending (); |
1193 | call_pending (EV_A); |
858 | } |
1194 | } |
859 | while (!ev_loop_done); |
1195 | while (activecnt && !loop_done); |
860 | |
1196 | |
861 | if (ev_loop_done != 2) |
1197 | if (loop_done != 2) |
862 | ev_loop_done = 0; |
1198 | loop_done = 0; |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | void |
|
|
1202 | ev_unloop (EV_P_ int how) |
|
|
1203 | { |
|
|
1204 | loop_done = how; |
863 | } |
1205 | } |
864 | |
1206 | |
865 | /*****************************************************************************/ |
1207 | /*****************************************************************************/ |
866 | |
1208 | |
867 | static void |
1209 | inline void |
868 | wlist_add (WL *head, WL elem) |
1210 | wlist_add (WL *head, WL elem) |
869 | { |
1211 | { |
870 | elem->next = *head; |
1212 | elem->next = *head; |
871 | *head = elem; |
1213 | *head = elem; |
872 | } |
1214 | } |
873 | |
1215 | |
874 | static void |
1216 | inline void |
875 | wlist_del (WL *head, WL elem) |
1217 | wlist_del (WL *head, WL elem) |
876 | { |
1218 | { |
877 | while (*head) |
1219 | while (*head) |
878 | { |
1220 | { |
879 | if (*head == elem) |
1221 | if (*head == elem) |
… | |
… | |
884 | |
1226 | |
885 | head = &(*head)->next; |
1227 | head = &(*head)->next; |
886 | } |
1228 | } |
887 | } |
1229 | } |
888 | |
1230 | |
889 | static void |
1231 | inline void |
890 | ev_clear_pending (W w) |
1232 | ev_clear_pending (EV_P_ W w) |
891 | { |
1233 | { |
892 | if (w->pending) |
1234 | if (w->pending) |
893 | { |
1235 | { |
894 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1236 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
895 | w->pending = 0; |
1237 | w->pending = 0; |
896 | } |
1238 | } |
897 | } |
1239 | } |
898 | |
1240 | |
899 | static void |
1241 | inline void |
900 | ev_start (W w, int active) |
1242 | ev_start (EV_P_ W w, int active) |
901 | { |
1243 | { |
902 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1244 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
903 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1245 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
904 | |
1246 | |
905 | w->active = active; |
1247 | w->active = active; |
|
|
1248 | ev_ref (EV_A); |
906 | } |
1249 | } |
907 | |
1250 | |
908 | static void |
1251 | inline void |
909 | ev_stop (W w) |
1252 | ev_stop (EV_P_ W w) |
910 | { |
1253 | { |
|
|
1254 | ev_unref (EV_A); |
911 | w->active = 0; |
1255 | w->active = 0; |
912 | } |
1256 | } |
913 | |
1257 | |
914 | /*****************************************************************************/ |
1258 | /*****************************************************************************/ |
915 | |
1259 | |
916 | void |
1260 | void |
917 | ev_io_start (struct ev_io *w) |
1261 | ev_io_start (EV_P_ struct ev_io *w) |
918 | { |
1262 | { |
919 | int fd = w->fd; |
1263 | int fd = w->fd; |
920 | |
1264 | |
921 | if (ev_is_active (w)) |
1265 | if (ev_is_active (w)) |
922 | return; |
1266 | return; |
923 | |
1267 | |
924 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1268 | assert (("ev_io_start called with negative fd", fd >= 0)); |
925 | |
1269 | |
926 | ev_start ((W)w, 1); |
1270 | ev_start (EV_A_ (W)w, 1); |
927 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1271 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
928 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1272 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
929 | |
1273 | |
930 | fd_change (fd); |
1274 | fd_change (EV_A_ fd); |
931 | } |
1275 | } |
932 | |
1276 | |
933 | void |
1277 | void |
934 | ev_io_stop (struct ev_io *w) |
1278 | ev_io_stop (EV_P_ struct ev_io *w) |
935 | { |
1279 | { |
936 | ev_clear_pending ((W)w); |
1280 | ev_clear_pending (EV_A_ (W)w); |
937 | if (!ev_is_active (w)) |
1281 | if (!ev_is_active (w)) |
938 | return; |
1282 | return; |
939 | |
1283 | |
940 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1284 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
941 | ev_stop ((W)w); |
1285 | ev_stop (EV_A_ (W)w); |
942 | |
1286 | |
943 | fd_change (w->fd); |
1287 | fd_change (EV_A_ w->fd); |
944 | } |
1288 | } |
945 | |
1289 | |
946 | void |
1290 | void |
947 | ev_timer_start (struct ev_timer *w) |
1291 | ev_timer_start (EV_P_ struct ev_timer *w) |
948 | { |
1292 | { |
949 | if (ev_is_active (w)) |
1293 | if (ev_is_active (w)) |
950 | return; |
1294 | return; |
951 | |
1295 | |
952 | w->at += now; |
1296 | ((WT)w)->at += mn_now; |
953 | |
1297 | |
954 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1298 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
955 | |
1299 | |
956 | ev_start ((W)w, ++timercnt); |
1300 | ev_start (EV_A_ (W)w, ++timercnt); |
957 | array_needsize (timers, timermax, timercnt, ); |
1301 | array_needsize (timers, timermax, timercnt, (void)); |
958 | timers [timercnt - 1] = w; |
1302 | timers [timercnt - 1] = w; |
959 | upheap ((WT *)timers, timercnt - 1); |
1303 | upheap ((WT *)timers, timercnt - 1); |
960 | } |
|
|
961 | |
1304 | |
|
|
1305 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1306 | } |
|
|
1307 | |
962 | void |
1308 | void |
963 | ev_timer_stop (struct ev_timer *w) |
1309 | ev_timer_stop (EV_P_ struct ev_timer *w) |
964 | { |
1310 | { |
965 | ev_clear_pending ((W)w); |
1311 | ev_clear_pending (EV_A_ (W)w); |
966 | if (!ev_is_active (w)) |
1312 | if (!ev_is_active (w)) |
967 | return; |
1313 | return; |
968 | |
1314 | |
|
|
1315 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1316 | |
969 | if (w->active < timercnt--) |
1317 | if (((W)w)->active < timercnt--) |
970 | { |
1318 | { |
971 | timers [w->active - 1] = timers [timercnt]; |
1319 | timers [((W)w)->active - 1] = timers [timercnt]; |
972 | downheap ((WT *)timers, timercnt, w->active - 1); |
1320 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
973 | } |
1321 | } |
974 | |
1322 | |
975 | w->at = w->repeat; |
1323 | ((WT)w)->at = w->repeat; |
976 | |
1324 | |
977 | ev_stop ((W)w); |
1325 | ev_stop (EV_A_ (W)w); |
978 | } |
1326 | } |
979 | |
1327 | |
980 | void |
1328 | void |
981 | ev_timer_again (struct ev_timer *w) |
1329 | ev_timer_again (EV_P_ struct ev_timer *w) |
982 | { |
1330 | { |
983 | if (ev_is_active (w)) |
1331 | if (ev_is_active (w)) |
984 | { |
1332 | { |
985 | if (w->repeat) |
1333 | if (w->repeat) |
986 | { |
1334 | { |
987 | w->at = now + w->repeat; |
1335 | ((WT)w)->at = mn_now + w->repeat; |
988 | downheap ((WT *)timers, timercnt, w->active - 1); |
1336 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
989 | } |
1337 | } |
990 | else |
1338 | else |
991 | ev_timer_stop (w); |
1339 | ev_timer_stop (EV_A_ w); |
992 | } |
1340 | } |
993 | else if (w->repeat) |
1341 | else if (w->repeat) |
994 | ev_timer_start (w); |
1342 | ev_timer_start (EV_A_ w); |
995 | } |
1343 | } |
996 | |
1344 | |
997 | void |
1345 | void |
998 | ev_periodic_start (struct ev_periodic *w) |
1346 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
999 | { |
1347 | { |
1000 | if (ev_is_active (w)) |
1348 | if (ev_is_active (w)) |
1001 | return; |
1349 | return; |
1002 | |
1350 | |
1003 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1351 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1004 | |
1352 | |
1005 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1353 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1006 | if (w->interval) |
1354 | if (w->interval) |
1007 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1355 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1008 | |
1356 | |
1009 | ev_start ((W)w, ++periodiccnt); |
1357 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1010 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1358 | array_needsize (periodics, periodicmax, periodiccnt, (void)); |
1011 | periodics [periodiccnt - 1] = w; |
1359 | periodics [periodiccnt - 1] = w; |
1012 | upheap ((WT *)periodics, periodiccnt - 1); |
1360 | upheap ((WT *)periodics, periodiccnt - 1); |
1013 | } |
|
|
1014 | |
1361 | |
|
|
1362 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1363 | } |
|
|
1364 | |
1015 | void |
1365 | void |
1016 | ev_periodic_stop (struct ev_periodic *w) |
1366 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1017 | { |
1367 | { |
1018 | ev_clear_pending ((W)w); |
1368 | ev_clear_pending (EV_A_ (W)w); |
1019 | if (!ev_is_active (w)) |
1369 | if (!ev_is_active (w)) |
1020 | return; |
1370 | return; |
1021 | |
1371 | |
|
|
1372 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1373 | |
1022 | if (w->active < periodiccnt--) |
1374 | if (((W)w)->active < periodiccnt--) |
1023 | { |
1375 | { |
1024 | periodics [w->active - 1] = periodics [periodiccnt]; |
1376 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1025 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1377 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1026 | } |
1378 | } |
1027 | |
1379 | |
1028 | ev_stop ((W)w); |
1380 | ev_stop (EV_A_ (W)w); |
|
|
1381 | } |
|
|
1382 | |
|
|
1383 | void |
|
|
1384 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1385 | { |
|
|
1386 | if (ev_is_active (w)) |
|
|
1387 | return; |
|
|
1388 | |
|
|
1389 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1390 | array_needsize (idles, idlemax, idlecnt, (void)); |
|
|
1391 | idles [idlecnt - 1] = w; |
|
|
1392 | } |
|
|
1393 | |
|
|
1394 | void |
|
|
1395 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1396 | { |
|
|
1397 | ev_clear_pending (EV_A_ (W)w); |
|
|
1398 | if (ev_is_active (w)) |
|
|
1399 | return; |
|
|
1400 | |
|
|
1401 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1402 | ev_stop (EV_A_ (W)w); |
|
|
1403 | } |
|
|
1404 | |
|
|
1405 | void |
|
|
1406 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1407 | { |
|
|
1408 | if (ev_is_active (w)) |
|
|
1409 | return; |
|
|
1410 | |
|
|
1411 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1412 | array_needsize (prepares, preparemax, preparecnt, (void)); |
|
|
1413 | prepares [preparecnt - 1] = w; |
|
|
1414 | } |
|
|
1415 | |
|
|
1416 | void |
|
|
1417 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1418 | { |
|
|
1419 | ev_clear_pending (EV_A_ (W)w); |
|
|
1420 | if (ev_is_active (w)) |
|
|
1421 | return; |
|
|
1422 | |
|
|
1423 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1424 | ev_stop (EV_A_ (W)w); |
|
|
1425 | } |
|
|
1426 | |
|
|
1427 | void |
|
|
1428 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1429 | { |
|
|
1430 | if (ev_is_active (w)) |
|
|
1431 | return; |
|
|
1432 | |
|
|
1433 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1434 | array_needsize (checks, checkmax, checkcnt, (void)); |
|
|
1435 | checks [checkcnt - 1] = w; |
|
|
1436 | } |
|
|
1437 | |
|
|
1438 | void |
|
|
1439 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1440 | { |
|
|
1441 | ev_clear_pending (EV_A_ (W)w); |
|
|
1442 | if (ev_is_active (w)) |
|
|
1443 | return; |
|
|
1444 | |
|
|
1445 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1446 | ev_stop (EV_A_ (W)w); |
1029 | } |
1447 | } |
1030 | |
1448 | |
1031 | #ifndef SA_RESTART |
1449 | #ifndef SA_RESTART |
1032 | # define SA_RESTART 0 |
1450 | # define SA_RESTART 0 |
1033 | #endif |
1451 | #endif |
1034 | |
1452 | |
1035 | void |
1453 | void |
1036 | ev_signal_start (struct ev_signal *w) |
1454 | ev_signal_start (EV_P_ struct ev_signal *w) |
1037 | { |
1455 | { |
|
|
1456 | #if EV_MULTIPLICITY |
|
|
1457 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1458 | #endif |
1038 | if (ev_is_active (w)) |
1459 | if (ev_is_active (w)) |
1039 | return; |
1460 | return; |
1040 | |
1461 | |
1041 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1462 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1042 | |
1463 | |
1043 | ev_start ((W)w, 1); |
1464 | ev_start (EV_A_ (W)w, 1); |
1044 | array_needsize (signals, signalmax, w->signum, signals_init); |
1465 | array_needsize (signals, signalmax, w->signum, signals_init); |
1045 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1466 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1046 | |
1467 | |
1047 | if (!w->next) |
1468 | if (!((WL)w)->next) |
1048 | { |
1469 | { |
|
|
1470 | #if WIN32 |
|
|
1471 | signal (w->signum, sighandler); |
|
|
1472 | #else |
1049 | struct sigaction sa; |
1473 | struct sigaction sa; |
1050 | sa.sa_handler = sighandler; |
1474 | sa.sa_handler = sighandler; |
1051 | sigfillset (&sa.sa_mask); |
1475 | sigfillset (&sa.sa_mask); |
1052 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1476 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1053 | sigaction (w->signum, &sa, 0); |
1477 | sigaction (w->signum, &sa, 0); |
|
|
1478 | #endif |
1054 | } |
1479 | } |
1055 | } |
1480 | } |
1056 | |
1481 | |
1057 | void |
1482 | void |
1058 | ev_signal_stop (struct ev_signal *w) |
1483 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1059 | { |
1484 | { |
1060 | ev_clear_pending ((W)w); |
1485 | ev_clear_pending (EV_A_ (W)w); |
1061 | if (!ev_is_active (w)) |
1486 | if (!ev_is_active (w)) |
1062 | return; |
1487 | return; |
1063 | |
1488 | |
1064 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1489 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1065 | ev_stop ((W)w); |
1490 | ev_stop (EV_A_ (W)w); |
1066 | |
1491 | |
1067 | if (!signals [w->signum - 1].head) |
1492 | if (!signals [w->signum - 1].head) |
1068 | signal (w->signum, SIG_DFL); |
1493 | signal (w->signum, SIG_DFL); |
1069 | } |
1494 | } |
1070 | |
1495 | |
1071 | void |
1496 | void |
1072 | ev_idle_start (struct ev_idle *w) |
1497 | ev_child_start (EV_P_ struct ev_child *w) |
1073 | { |
1498 | { |
|
|
1499 | #if EV_MULTIPLICITY |
|
|
1500 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1501 | #endif |
1074 | if (ev_is_active (w)) |
1502 | if (ev_is_active (w)) |
1075 | return; |
1503 | return; |
1076 | |
1504 | |
1077 | ev_start ((W)w, ++idlecnt); |
1505 | ev_start (EV_A_ (W)w, 1); |
1078 | array_needsize (idles, idlemax, idlecnt, ); |
1506 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1079 | idles [idlecnt - 1] = w; |
|
|
1080 | } |
1507 | } |
1081 | |
1508 | |
1082 | void |
1509 | void |
1083 | ev_idle_stop (struct ev_idle *w) |
1510 | ev_child_stop (EV_P_ struct ev_child *w) |
1084 | { |
1511 | { |
1085 | ev_clear_pending ((W)w); |
1512 | ev_clear_pending (EV_A_ (W)w); |
1086 | if (ev_is_active (w)) |
1513 | if (ev_is_active (w)) |
1087 | return; |
1514 | return; |
1088 | |
1515 | |
1089 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1090 | ev_stop ((W)w); |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | void |
|
|
1094 | ev_prepare_start (struct ev_prepare *w) |
|
|
1095 | { |
|
|
1096 | if (ev_is_active (w)) |
|
|
1097 | return; |
|
|
1098 | |
|
|
1099 | ev_start ((W)w, ++preparecnt); |
|
|
1100 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1101 | prepares [preparecnt - 1] = w; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | void |
|
|
1105 | ev_prepare_stop (struct ev_prepare *w) |
|
|
1106 | { |
|
|
1107 | ev_clear_pending ((W)w); |
|
|
1108 | if (ev_is_active (w)) |
|
|
1109 | return; |
|
|
1110 | |
|
|
1111 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1112 | ev_stop ((W)w); |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | void |
|
|
1116 | ev_check_start (struct ev_check *w) |
|
|
1117 | { |
|
|
1118 | if (ev_is_active (w)) |
|
|
1119 | return; |
|
|
1120 | |
|
|
1121 | ev_start ((W)w, ++checkcnt); |
|
|
1122 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1123 | checks [checkcnt - 1] = w; |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | void |
|
|
1127 | ev_check_stop (struct ev_check *w) |
|
|
1128 | { |
|
|
1129 | ev_clear_pending ((W)w); |
|
|
1130 | if (ev_is_active (w)) |
|
|
1131 | return; |
|
|
1132 | |
|
|
1133 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1134 | ev_stop ((W)w); |
|
|
1135 | } |
|
|
1136 | |
|
|
1137 | void |
|
|
1138 | ev_child_start (struct ev_child *w) |
|
|
1139 | { |
|
|
1140 | if (ev_is_active (w)) |
|
|
1141 | return; |
|
|
1142 | |
|
|
1143 | ev_start ((W)w, 1); |
|
|
1144 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | void |
|
|
1148 | ev_child_stop (struct ev_child *w) |
|
|
1149 | { |
|
|
1150 | ev_clear_pending ((W)w); |
|
|
1151 | if (ev_is_active (w)) |
|
|
1152 | return; |
|
|
1153 | |
|
|
1154 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1516 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1155 | ev_stop ((W)w); |
1517 | ev_stop (EV_A_ (W)w); |
1156 | } |
1518 | } |
1157 | |
1519 | |
1158 | /*****************************************************************************/ |
1520 | /*****************************************************************************/ |
1159 | |
1521 | |
1160 | struct ev_once |
1522 | struct ev_once |
… | |
… | |
1164 | void (*cb)(int revents, void *arg); |
1526 | void (*cb)(int revents, void *arg); |
1165 | void *arg; |
1527 | void *arg; |
1166 | }; |
1528 | }; |
1167 | |
1529 | |
1168 | static void |
1530 | static void |
1169 | once_cb (struct ev_once *once, int revents) |
1531 | once_cb (EV_P_ struct ev_once *once, int revents) |
1170 | { |
1532 | { |
1171 | void (*cb)(int revents, void *arg) = once->cb; |
1533 | void (*cb)(int revents, void *arg) = once->cb; |
1172 | void *arg = once->arg; |
1534 | void *arg = once->arg; |
1173 | |
1535 | |
1174 | ev_io_stop (&once->io); |
1536 | ev_io_stop (EV_A_ &once->io); |
1175 | ev_timer_stop (&once->to); |
1537 | ev_timer_stop (EV_A_ &once->to); |
1176 | free (once); |
1538 | ev_free (once); |
1177 | |
1539 | |
1178 | cb (revents, arg); |
1540 | cb (revents, arg); |
1179 | } |
1541 | } |
1180 | |
1542 | |
1181 | static void |
1543 | static void |
1182 | once_cb_io (struct ev_io *w, int revents) |
1544 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1183 | { |
1545 | { |
1184 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1546 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1185 | } |
1547 | } |
1186 | |
1548 | |
1187 | static void |
1549 | static void |
1188 | once_cb_to (struct ev_timer *w, int revents) |
1550 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1189 | { |
1551 | { |
1190 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1552 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1191 | } |
1553 | } |
1192 | |
1554 | |
1193 | void |
1555 | void |
1194 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1556 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1195 | { |
1557 | { |
1196 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1558 | struct ev_once *once = ev_malloc (sizeof (struct ev_once)); |
1197 | |
1559 | |
1198 | if (!once) |
1560 | if (!once) |
1199 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1561 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1200 | else |
1562 | else |
1201 | { |
1563 | { |
… | |
… | |
1204 | |
1566 | |
1205 | ev_watcher_init (&once->io, once_cb_io); |
1567 | ev_watcher_init (&once->io, once_cb_io); |
1206 | if (fd >= 0) |
1568 | if (fd >= 0) |
1207 | { |
1569 | { |
1208 | ev_io_set (&once->io, fd, events); |
1570 | ev_io_set (&once->io, fd, events); |
1209 | ev_io_start (&once->io); |
1571 | ev_io_start (EV_A_ &once->io); |
1210 | } |
1572 | } |
1211 | |
1573 | |
1212 | ev_watcher_init (&once->to, once_cb_to); |
1574 | ev_watcher_init (&once->to, once_cb_to); |
1213 | if (timeout >= 0.) |
1575 | if (timeout >= 0.) |
1214 | { |
1576 | { |
1215 | ev_timer_set (&once->to, timeout, 0.); |
1577 | ev_timer_set (&once->to, timeout, 0.); |
1216 | ev_timer_start (&once->to); |
1578 | ev_timer_start (EV_A_ &once->to); |
1217 | } |
1579 | } |
1218 | } |
1580 | } |
1219 | } |
1581 | } |
1220 | |
1582 | |
1221 | /*****************************************************************************/ |
|
|
1222 | |
|
|
1223 | #if 0 |
|
|
1224 | |
|
|
1225 | struct ev_io wio; |
|
|
1226 | |
|
|
1227 | static void |
|
|
1228 | sin_cb (struct ev_io *w, int revents) |
|
|
1229 | { |
|
|
1230 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | static void |
|
|
1234 | ocb (struct ev_timer *w, int revents) |
|
|
1235 | { |
|
|
1236 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1237 | ev_timer_stop (w); |
|
|
1238 | ev_timer_start (w); |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | static void |
|
|
1242 | scb (struct ev_signal *w, int revents) |
|
|
1243 | { |
|
|
1244 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1245 | ev_io_stop (&wio); |
|
|
1246 | ev_io_start (&wio); |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | static void |
|
|
1250 | gcb (struct ev_signal *w, int revents) |
|
|
1251 | { |
|
|
1252 | fprintf (stderr, "generic %x\n", revents); |
|
|
1253 | |
|
|
1254 | } |
|
|
1255 | |
|
|
1256 | int main (void) |
|
|
1257 | { |
|
|
1258 | ev_init (0); |
|
|
1259 | |
|
|
1260 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1261 | ev_io_start (&wio); |
|
|
1262 | |
|
|
1263 | struct ev_timer t[10000]; |
|
|
1264 | |
|
|
1265 | #if 0 |
|
|
1266 | int i; |
|
|
1267 | for (i = 0; i < 10000; ++i) |
|
|
1268 | { |
|
|
1269 | struct ev_timer *w = t + i; |
|
|
1270 | ev_watcher_init (w, ocb, i); |
|
|
1271 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1272 | ev_timer_start (w); |
|
|
1273 | if (drand48 () < 0.5) |
|
|
1274 | ev_timer_stop (w); |
|
|
1275 | } |
|
|
1276 | #endif |
|
|
1277 | |
|
|
1278 | struct ev_timer t1; |
|
|
1279 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1280 | ev_timer_start (&t1); |
|
|
1281 | |
|
|
1282 | struct ev_signal sig; |
|
|
1283 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1284 | ev_signal_start (&sig); |
|
|
1285 | |
|
|
1286 | struct ev_check cw; |
|
|
1287 | ev_check_init (&cw, gcb); |
|
|
1288 | ev_check_start (&cw); |
|
|
1289 | |
|
|
1290 | struct ev_idle iw; |
|
|
1291 | ev_idle_init (&iw, gcb); |
|
|
1292 | ev_idle_start (&iw); |
|
|
1293 | |
|
|
1294 | ev_loop (0); |
|
|
1295 | |
|
|
1296 | return 0; |
|
|
1297 | } |
|
|
1298 | |
|
|
1299 | #endif |
|
|
1300 | |
|
|
1301 | |
|
|
1302 | |
|
|
1303 | |
|
|