… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
|
|
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
31 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
37 | # include "config.h" |
|
|
38 | |
|
|
39 | # if HAVE_CLOCK_GETTIME |
|
|
40 | # ifndef EV_USE_MONOTONIC |
|
|
41 | # define EV_USE_MONOTONIC 1 |
|
|
42 | # endif |
|
|
43 | # ifndef EV_USE_REALTIME |
|
|
44 | # define EV_USE_REALTIME 1 |
|
|
45 | # endif |
|
|
46 | # endif |
|
|
47 | |
|
|
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
|
|
49 | # define EV_USE_SELECT 1 |
|
|
50 | # endif |
|
|
51 | |
|
|
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
|
|
53 | # define EV_USE_POLL 1 |
|
|
54 | # endif |
|
|
55 | |
|
|
56 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
|
|
57 | # define EV_USE_EPOLL 1 |
|
|
58 | # endif |
|
|
59 | |
|
|
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
|
|
61 | # define EV_USE_KQUEUE 1 |
|
|
62 | # endif |
|
|
63 | |
33 | #endif |
64 | #endif |
34 | |
65 | |
35 | #include <math.h> |
66 | #include <math.h> |
36 | #include <stdlib.h> |
67 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
68 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
69 | #include <stddef.h> |
41 | |
70 | |
42 | #include <stdio.h> |
71 | #include <stdio.h> |
43 | |
72 | |
44 | #include <assert.h> |
73 | #include <assert.h> |
45 | #include <errno.h> |
74 | #include <errno.h> |
46 | #include <sys/types.h> |
75 | #include <sys/types.h> |
|
|
76 | #include <time.h> |
|
|
77 | |
|
|
78 | #include <signal.h> |
|
|
79 | |
47 | #ifndef WIN32 |
80 | #ifndef _WIN32 |
|
|
81 | # include <unistd.h> |
|
|
82 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
83 | # include <sys/wait.h> |
|
|
84 | #else |
|
|
85 | # define WIN32_LEAN_AND_MEAN |
|
|
86 | # include <windows.h> |
|
|
87 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
88 | # define EV_SELECT_IS_WINSOCKET 1 |
49 | #endif |
89 | # endif |
50 | #include <sys/time.h> |
90 | #endif |
51 | #include <time.h> |
|
|
52 | |
91 | |
53 | /**/ |
92 | /**/ |
54 | |
93 | |
55 | #ifndef EV_USE_MONOTONIC |
94 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
95 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
58 | |
97 | |
59 | #ifndef EV_USE_SELECT |
98 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
99 | # define EV_USE_SELECT 1 |
61 | #endif |
100 | #endif |
62 | |
101 | |
63 | #ifndef EV_USEV_POLL |
102 | #ifndef EV_USE_POLL |
64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
103 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
65 | #endif |
104 | #endif |
66 | |
105 | |
67 | #ifndef EV_USE_EPOLL |
106 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
107 | # define EV_USE_EPOLL 0 |
69 | #endif |
108 | #endif |
… | |
… | |
84 | #endif |
123 | #endif |
85 | |
124 | |
86 | #ifndef CLOCK_REALTIME |
125 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
126 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
127 | # define EV_USE_REALTIME 0 |
|
|
128 | #endif |
|
|
129 | |
|
|
130 | #if EV_SELECT_IS_WINSOCKET |
|
|
131 | # include <winsock.h> |
89 | #endif |
132 | #endif |
90 | |
133 | |
91 | /**/ |
134 | /**/ |
92 | |
135 | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
136 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
137 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
138 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
139 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
97 | |
140 | |
|
|
141 | #ifdef EV_H |
|
|
142 | # include EV_H |
|
|
143 | #else |
98 | #include "ev.h" |
144 | # include "ev.h" |
|
|
145 | #endif |
99 | |
146 | |
100 | #if __GNUC__ >= 3 |
147 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
148 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
102 | # define inline inline |
149 | # define inline inline |
103 | #else |
150 | #else |
… | |
… | |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
156 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
157 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
158 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
159 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
113 | |
160 | |
|
|
161 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
162 | |
114 | typedef struct ev_watcher *W; |
163 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
164 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
165 | typedef struct ev_watcher_time *WT; |
117 | |
166 | |
|
|
167 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
168 | |
|
|
169 | #ifdef _WIN32 |
|
|
170 | # include "ev_win32.c" |
|
|
171 | #endif |
|
|
172 | |
118 | /*****************************************************************************/ |
173 | /*****************************************************************************/ |
119 | |
174 | |
|
|
175 | static void (*syserr_cb)(const char *msg); |
|
|
176 | |
|
|
177 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
178 | { |
|
|
179 | syserr_cb = cb; |
|
|
180 | } |
|
|
181 | |
|
|
182 | static void |
|
|
183 | syserr (const char *msg) |
|
|
184 | { |
|
|
185 | if (!msg) |
|
|
186 | msg = "(libev) system error"; |
|
|
187 | |
|
|
188 | if (syserr_cb) |
|
|
189 | syserr_cb (msg); |
|
|
190 | else |
|
|
191 | { |
|
|
192 | perror (msg); |
|
|
193 | abort (); |
|
|
194 | } |
|
|
195 | } |
|
|
196 | |
|
|
197 | static void *(*alloc)(void *ptr, long size); |
|
|
198 | |
|
|
199 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
200 | { |
|
|
201 | alloc = cb; |
|
|
202 | } |
|
|
203 | |
|
|
204 | static void * |
|
|
205 | ev_realloc (void *ptr, long size) |
|
|
206 | { |
|
|
207 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
208 | |
|
|
209 | if (!ptr && size) |
|
|
210 | { |
|
|
211 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
212 | abort (); |
|
|
213 | } |
|
|
214 | |
|
|
215 | return ptr; |
|
|
216 | } |
|
|
217 | |
|
|
218 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
219 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
220 | |
|
|
221 | /*****************************************************************************/ |
|
|
222 | |
120 | typedef struct |
223 | typedef struct |
121 | { |
224 | { |
122 | struct ev_watcher_list *head; |
225 | WL head; |
123 | unsigned char events; |
226 | unsigned char events; |
124 | unsigned char reify; |
227 | unsigned char reify; |
|
|
228 | #if EV_SELECT_IS_WINSOCKET |
|
|
229 | SOCKET handle; |
|
|
230 | #endif |
125 | } ANFD; |
231 | } ANFD; |
126 | |
232 | |
127 | typedef struct |
233 | typedef struct |
128 | { |
234 | { |
129 | W w; |
235 | W w; |
130 | int events; |
236 | int events; |
131 | } ANPENDING; |
237 | } ANPENDING; |
132 | |
238 | |
133 | #ifdef EV_MULTIPLICITY |
239 | #if EV_MULTIPLICITY |
|
|
240 | |
134 | struct ev_loop |
241 | struct ev_loop |
135 | { |
242 | { |
|
|
243 | ev_tstamp ev_rt_now; |
|
|
244 | #define ev_rt_now ((loop)->ev_rt_now) |
136 | # define VAR(name,decl) decl |
245 | #define VAR(name,decl) decl; |
137 | # include "ev_vars.h" |
246 | #include "ev_vars.h" |
138 | }; |
247 | #undef VAR |
|
|
248 | }; |
|
|
249 | #include "ev_wrap.h" |
|
|
250 | |
|
|
251 | struct ev_loop default_loop_struct; |
|
|
252 | static struct ev_loop *default_loop; |
|
|
253 | |
139 | #else |
254 | #else |
|
|
255 | |
|
|
256 | ev_tstamp ev_rt_now; |
140 | # define VAR(name,decl) static decl |
257 | #define VAR(name,decl) static decl; |
141 | # include "ev_vars.h" |
258 | #include "ev_vars.h" |
142 | #endif |
|
|
143 | #undef VAR |
259 | #undef VAR |
|
|
260 | |
|
|
261 | static int default_loop; |
|
|
262 | |
|
|
263 | #endif |
144 | |
264 | |
145 | /*****************************************************************************/ |
265 | /*****************************************************************************/ |
146 | |
266 | |
147 | inline ev_tstamp |
267 | ev_tstamp |
148 | ev_time (void) |
268 | ev_time (void) |
149 | { |
269 | { |
150 | #if EV_USE_REALTIME |
270 | #if EV_USE_REALTIME |
151 | struct timespec ts; |
271 | struct timespec ts; |
152 | clock_gettime (CLOCK_REALTIME, &ts); |
272 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
171 | #endif |
291 | #endif |
172 | |
292 | |
173 | return ev_time (); |
293 | return ev_time (); |
174 | } |
294 | } |
175 | |
295 | |
|
|
296 | #if EV_MULTIPLICITY |
176 | ev_tstamp |
297 | ev_tstamp |
177 | ev_now (EV_P) |
298 | ev_now (EV_P) |
178 | { |
299 | { |
179 | return rt_now; |
300 | return ev_rt_now; |
180 | } |
301 | } |
|
|
302 | #endif |
181 | |
303 | |
182 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
304 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
183 | |
305 | |
184 | #define array_needsize(base,cur,cnt,init) \ |
306 | #define array_needsize(type,base,cur,cnt,init) \ |
185 | if (expect_false ((cnt) > cur)) \ |
307 | if (expect_false ((cnt) > cur)) \ |
186 | { \ |
308 | { \ |
187 | int newcnt = cur; \ |
309 | int newcnt = cur; \ |
188 | do \ |
310 | do \ |
189 | { \ |
311 | { \ |
190 | newcnt = array_roundsize (base, newcnt << 1); \ |
312 | newcnt = array_roundsize (type, newcnt << 1); \ |
191 | } \ |
313 | } \ |
192 | while ((cnt) > newcnt); \ |
314 | while ((cnt) > newcnt); \ |
193 | \ |
315 | \ |
194 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
316 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
195 | init (base + cur, newcnt - cur); \ |
317 | init (base + cur, newcnt - cur); \ |
196 | cur = newcnt; \ |
318 | cur = newcnt; \ |
197 | } |
319 | } |
|
|
320 | |
|
|
321 | #define array_slim(type,stem) \ |
|
|
322 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
323 | { \ |
|
|
324 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
325 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
326 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
327 | } |
|
|
328 | |
|
|
329 | #define array_free(stem, idx) \ |
|
|
330 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
198 | |
331 | |
199 | /*****************************************************************************/ |
332 | /*****************************************************************************/ |
200 | |
333 | |
201 | static void |
334 | static void |
202 | anfds_init (ANFD *base, int count) |
335 | anfds_init (ANFD *base, int count) |
… | |
… | |
209 | |
342 | |
210 | ++base; |
343 | ++base; |
211 | } |
344 | } |
212 | } |
345 | } |
213 | |
346 | |
214 | static void |
347 | void |
215 | event (EV_P_ W w, int events) |
348 | ev_feed_event (EV_P_ void *w, int revents) |
216 | { |
349 | { |
|
|
350 | W w_ = (W)w; |
|
|
351 | |
217 | if (w->pending) |
352 | if (w_->pending) |
218 | { |
353 | { |
219 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
354 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
220 | return; |
355 | return; |
221 | } |
356 | } |
222 | |
357 | |
223 | w->pending = ++pendingcnt [ABSPRI (w)]; |
358 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
224 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
359 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
225 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
360 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
226 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
361 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
227 | } |
362 | } |
228 | |
363 | |
229 | static void |
364 | static void |
230 | queue_events (EV_P_ W *events, int eventcnt, int type) |
365 | queue_events (EV_P_ W *events, int eventcnt, int type) |
231 | { |
366 | { |
232 | int i; |
367 | int i; |
233 | |
368 | |
234 | for (i = 0; i < eventcnt; ++i) |
369 | for (i = 0; i < eventcnt; ++i) |
235 | event (EV_A_ events [i], type); |
370 | ev_feed_event (EV_A_ events [i], type); |
236 | } |
371 | } |
237 | |
372 | |
238 | static void |
373 | inline void |
239 | fd_event (EV_P_ int fd, int events) |
374 | fd_event (EV_P_ int fd, int revents) |
240 | { |
375 | { |
241 | ANFD *anfd = anfds + fd; |
376 | ANFD *anfd = anfds + fd; |
242 | struct ev_io *w; |
377 | struct ev_io *w; |
243 | |
378 | |
244 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
379 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
245 | { |
380 | { |
246 | int ev = w->events & events; |
381 | int ev = w->events & revents; |
247 | |
382 | |
248 | if (ev) |
383 | if (ev) |
249 | event (EV_A_ (W)w, ev); |
384 | ev_feed_event (EV_A_ (W)w, ev); |
250 | } |
385 | } |
|
|
386 | } |
|
|
387 | |
|
|
388 | void |
|
|
389 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
390 | { |
|
|
391 | fd_event (EV_A_ fd, revents); |
251 | } |
392 | } |
252 | |
393 | |
253 | /*****************************************************************************/ |
394 | /*****************************************************************************/ |
254 | |
395 | |
255 | static void |
396 | static void |
… | |
… | |
266 | int events = 0; |
407 | int events = 0; |
267 | |
408 | |
268 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
409 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
269 | events |= w->events; |
410 | events |= w->events; |
270 | |
411 | |
|
|
412 | #if EV_SELECT_IS_WINSOCKET |
|
|
413 | if (events) |
|
|
414 | { |
|
|
415 | unsigned long argp; |
|
|
416 | anfd->handle = _get_osfhandle (fd); |
|
|
417 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
418 | } |
|
|
419 | #endif |
|
|
420 | |
271 | anfd->reify = 0; |
421 | anfd->reify = 0; |
272 | |
422 | |
273 | if (anfd->events != events) |
|
|
274 | { |
|
|
275 | method_modify (EV_A_ fd, anfd->events, events); |
423 | method_modify (EV_A_ fd, anfd->events, events); |
276 | anfd->events = events; |
424 | anfd->events = events; |
277 | } |
|
|
278 | } |
425 | } |
279 | |
426 | |
280 | fdchangecnt = 0; |
427 | fdchangecnt = 0; |
281 | } |
428 | } |
282 | |
429 | |
283 | static void |
430 | static void |
284 | fd_change (EV_P_ int fd) |
431 | fd_change (EV_P_ int fd) |
285 | { |
432 | { |
286 | if (anfds [fd].reify || fdchangecnt < 0) |
433 | if (anfds [fd].reify) |
287 | return; |
434 | return; |
288 | |
435 | |
289 | anfds [fd].reify = 1; |
436 | anfds [fd].reify = 1; |
290 | |
437 | |
291 | ++fdchangecnt; |
438 | ++fdchangecnt; |
292 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
439 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
293 | fdchanges [fdchangecnt - 1] = fd; |
440 | fdchanges [fdchangecnt - 1] = fd; |
294 | } |
441 | } |
295 | |
442 | |
296 | static void |
443 | static void |
297 | fd_kill (EV_P_ int fd) |
444 | fd_kill (EV_P_ int fd) |
… | |
… | |
299 | struct ev_io *w; |
446 | struct ev_io *w; |
300 | |
447 | |
301 | while ((w = (struct ev_io *)anfds [fd].head)) |
448 | while ((w = (struct ev_io *)anfds [fd].head)) |
302 | { |
449 | { |
303 | ev_io_stop (EV_A_ w); |
450 | ev_io_stop (EV_A_ w); |
304 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
451 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
305 | } |
452 | } |
|
|
453 | } |
|
|
454 | |
|
|
455 | static int |
|
|
456 | fd_valid (int fd) |
|
|
457 | { |
|
|
458 | #ifdef _WIN32 |
|
|
459 | return _get_osfhandle (fd) != -1; |
|
|
460 | #else |
|
|
461 | return fcntl (fd, F_GETFD) != -1; |
|
|
462 | #endif |
306 | } |
463 | } |
307 | |
464 | |
308 | /* called on EBADF to verify fds */ |
465 | /* called on EBADF to verify fds */ |
309 | static void |
466 | static void |
310 | fd_ebadf (EV_P) |
467 | fd_ebadf (EV_P) |
311 | { |
468 | { |
312 | int fd; |
469 | int fd; |
313 | |
470 | |
314 | for (fd = 0; fd < anfdmax; ++fd) |
471 | for (fd = 0; fd < anfdmax; ++fd) |
315 | if (anfds [fd].events) |
472 | if (anfds [fd].events) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
473 | if (!fd_valid (fd) == -1 && errno == EBADF) |
317 | fd_kill (EV_A_ fd); |
474 | fd_kill (EV_A_ fd); |
318 | } |
475 | } |
319 | |
476 | |
320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
477 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
321 | static void |
478 | static void |
322 | fd_enomem (EV_P) |
479 | fd_enomem (EV_P) |
323 | { |
480 | { |
324 | int fd = anfdmax; |
481 | int fd; |
325 | |
482 | |
326 | while (fd--) |
483 | for (fd = anfdmax; fd--; ) |
327 | if (anfds [fd].events) |
484 | if (anfds [fd].events) |
328 | { |
485 | { |
329 | close (fd); |
|
|
330 | fd_kill (EV_A_ fd); |
486 | fd_kill (EV_A_ fd); |
331 | return; |
487 | return; |
332 | } |
488 | } |
333 | } |
489 | } |
334 | |
490 | |
|
|
491 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
492 | static void |
|
|
493 | fd_rearm_all (EV_P) |
|
|
494 | { |
|
|
495 | int fd; |
|
|
496 | |
|
|
497 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
498 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
499 | if (anfds [fd].events) |
|
|
500 | { |
|
|
501 | anfds [fd].events = 0; |
|
|
502 | fd_change (EV_A_ fd); |
|
|
503 | } |
|
|
504 | } |
|
|
505 | |
335 | /*****************************************************************************/ |
506 | /*****************************************************************************/ |
336 | |
507 | |
337 | static void |
508 | static void |
338 | upheap (WT *timers, int k) |
509 | upheap (WT *heap, int k) |
339 | { |
510 | { |
340 | WT w = timers [k]; |
511 | WT w = heap [k]; |
341 | |
512 | |
342 | while (k && timers [k >> 1]->at > w->at) |
513 | while (k && heap [k >> 1]->at > w->at) |
343 | { |
514 | { |
344 | timers [k] = timers [k >> 1]; |
515 | heap [k] = heap [k >> 1]; |
345 | timers [k]->active = k + 1; |
516 | ((W)heap [k])->active = k + 1; |
346 | k >>= 1; |
517 | k >>= 1; |
347 | } |
518 | } |
348 | |
519 | |
349 | timers [k] = w; |
520 | heap [k] = w; |
350 | timers [k]->active = k + 1; |
521 | ((W)heap [k])->active = k + 1; |
351 | |
522 | |
352 | } |
523 | } |
353 | |
524 | |
354 | static void |
525 | static void |
355 | downheap (WT *timers, int N, int k) |
526 | downheap (WT *heap, int N, int k) |
356 | { |
527 | { |
357 | WT w = timers [k]; |
528 | WT w = heap [k]; |
358 | |
529 | |
359 | while (k < (N >> 1)) |
530 | while (k < (N >> 1)) |
360 | { |
531 | { |
361 | int j = k << 1; |
532 | int j = k << 1; |
362 | |
533 | |
363 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
534 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
364 | ++j; |
535 | ++j; |
365 | |
536 | |
366 | if (w->at <= timers [j]->at) |
537 | if (w->at <= heap [j]->at) |
367 | break; |
538 | break; |
368 | |
539 | |
369 | timers [k] = timers [j]; |
540 | heap [k] = heap [j]; |
370 | timers [k]->active = k + 1; |
541 | ((W)heap [k])->active = k + 1; |
371 | k = j; |
542 | k = j; |
372 | } |
543 | } |
373 | |
544 | |
374 | timers [k] = w; |
545 | heap [k] = w; |
375 | timers [k]->active = k + 1; |
546 | ((W)heap [k])->active = k + 1; |
|
|
547 | } |
|
|
548 | |
|
|
549 | inline void |
|
|
550 | adjustheap (WT *heap, int N, int k) |
|
|
551 | { |
|
|
552 | upheap (heap, k); |
|
|
553 | downheap (heap, N, k); |
376 | } |
554 | } |
377 | |
555 | |
378 | /*****************************************************************************/ |
556 | /*****************************************************************************/ |
379 | |
557 | |
380 | typedef struct |
558 | typedef struct |
381 | { |
559 | { |
382 | struct ev_watcher_list *head; |
560 | WL head; |
383 | sig_atomic_t volatile gotsig; |
561 | sig_atomic_t volatile gotsig; |
384 | } ANSIG; |
562 | } ANSIG; |
385 | |
563 | |
386 | static ANSIG *signals; |
564 | static ANSIG *signals; |
387 | static int signalmax; |
565 | static int signalmax; |
388 | |
566 | |
389 | static int sigpipe [2]; |
567 | static int sigpipe [2]; |
390 | static sig_atomic_t volatile gotsig; |
568 | static sig_atomic_t volatile gotsig; |
|
|
569 | static struct ev_io sigev; |
391 | |
570 | |
392 | static void |
571 | static void |
393 | signals_init (ANSIG *base, int count) |
572 | signals_init (ANSIG *base, int count) |
394 | { |
573 | { |
395 | while (count--) |
574 | while (count--) |
… | |
… | |
402 | } |
581 | } |
403 | |
582 | |
404 | static void |
583 | static void |
405 | sighandler (int signum) |
584 | sighandler (int signum) |
406 | { |
585 | { |
|
|
586 | #if _WIN32 |
|
|
587 | signal (signum, sighandler); |
|
|
588 | #endif |
|
|
589 | |
407 | signals [signum - 1].gotsig = 1; |
590 | signals [signum - 1].gotsig = 1; |
408 | |
591 | |
409 | if (!gotsig) |
592 | if (!gotsig) |
410 | { |
593 | { |
411 | int old_errno = errno; |
594 | int old_errno = errno; |
… | |
… | |
413 | write (sigpipe [1], &signum, 1); |
596 | write (sigpipe [1], &signum, 1); |
414 | errno = old_errno; |
597 | errno = old_errno; |
415 | } |
598 | } |
416 | } |
599 | } |
417 | |
600 | |
|
|
601 | void |
|
|
602 | ev_feed_signal_event (EV_P_ int signum) |
|
|
603 | { |
|
|
604 | WL w; |
|
|
605 | |
|
|
606 | #if EV_MULTIPLICITY |
|
|
607 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | --signum; |
|
|
611 | |
|
|
612 | if (signum < 0 || signum >= signalmax) |
|
|
613 | return; |
|
|
614 | |
|
|
615 | signals [signum].gotsig = 0; |
|
|
616 | |
|
|
617 | for (w = signals [signum].head; w; w = w->next) |
|
|
618 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
619 | } |
|
|
620 | |
418 | static void |
621 | static void |
419 | sigcb (EV_P_ struct ev_io *iow, int revents) |
622 | sigcb (EV_P_ struct ev_io *iow, int revents) |
420 | { |
623 | { |
421 | struct ev_watcher_list *w; |
|
|
422 | int signum; |
624 | int signum; |
423 | |
625 | |
424 | read (sigpipe [0], &revents, 1); |
626 | read (sigpipe [0], &revents, 1); |
425 | gotsig = 0; |
627 | gotsig = 0; |
426 | |
628 | |
427 | for (signum = signalmax; signum--; ) |
629 | for (signum = signalmax; signum--; ) |
428 | if (signals [signum].gotsig) |
630 | if (signals [signum].gotsig) |
429 | { |
631 | ev_feed_signal_event (EV_A_ signum + 1); |
430 | signals [signum].gotsig = 0; |
632 | } |
431 | |
633 | |
432 | for (w = signals [signum].head; w; w = w->next) |
634 | inline void |
433 | event (EV_A_ (W)w, EV_SIGNAL); |
635 | fd_intern (int fd) |
434 | } |
636 | { |
|
|
637 | #ifdef _WIN32 |
|
|
638 | int arg = 1; |
|
|
639 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
640 | #else |
|
|
641 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
642 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
643 | #endif |
435 | } |
644 | } |
436 | |
645 | |
437 | static void |
646 | static void |
438 | siginit (EV_P) |
647 | siginit (EV_P) |
439 | { |
648 | { |
440 | #ifndef WIN32 |
649 | fd_intern (sigpipe [0]); |
441 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
650 | fd_intern (sigpipe [1]); |
442 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
443 | |
|
|
444 | /* rather than sort out wether we really need nb, set it */ |
|
|
445 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
446 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
447 | #endif |
|
|
448 | |
651 | |
449 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
652 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
450 | ev_io_start (&sigev); |
653 | ev_io_start (EV_A_ &sigev); |
451 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
654 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
452 | } |
655 | } |
453 | |
656 | |
454 | /*****************************************************************************/ |
657 | /*****************************************************************************/ |
455 | |
658 | |
|
|
659 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
660 | |
456 | #ifndef WIN32 |
661 | #ifndef _WIN32 |
|
|
662 | |
|
|
663 | static struct ev_signal childev; |
457 | |
664 | |
458 | #ifndef WCONTINUED |
665 | #ifndef WCONTINUED |
459 | # define WCONTINUED 0 |
666 | # define WCONTINUED 0 |
460 | #endif |
667 | #endif |
461 | |
668 | |
… | |
… | |
465 | struct ev_child *w; |
672 | struct ev_child *w; |
466 | |
673 | |
467 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
674 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
468 | if (w->pid == pid || !w->pid) |
675 | if (w->pid == pid || !w->pid) |
469 | { |
676 | { |
470 | w->priority = sw->priority; /* need to do it *now* */ |
677 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
471 | w->rpid = pid; |
678 | w->rpid = pid; |
472 | w->rstatus = status; |
679 | w->rstatus = status; |
473 | event (EV_A_ (W)w, EV_CHILD); |
680 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
474 | } |
681 | } |
475 | } |
682 | } |
476 | |
683 | |
477 | static void |
684 | static void |
478 | childcb (EV_P_ struct ev_signal *sw, int revents) |
685 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
480 | int pid, status; |
687 | int pid, status; |
481 | |
688 | |
482 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
689 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
483 | { |
690 | { |
484 | /* make sure we are called again until all childs have been reaped */ |
691 | /* make sure we are called again until all childs have been reaped */ |
485 | event (EV_A_ (W)sw, EV_SIGNAL); |
692 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
486 | |
693 | |
487 | child_reap (EV_A_ sw, pid, pid, status); |
694 | child_reap (EV_A_ sw, pid, pid, status); |
488 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
695 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
489 | } |
696 | } |
490 | } |
697 | } |
… | |
… | |
497 | # include "ev_kqueue.c" |
704 | # include "ev_kqueue.c" |
498 | #endif |
705 | #endif |
499 | #if EV_USE_EPOLL |
706 | #if EV_USE_EPOLL |
500 | # include "ev_epoll.c" |
707 | # include "ev_epoll.c" |
501 | #endif |
708 | #endif |
502 | #if EV_USEV_POLL |
709 | #if EV_USE_POLL |
503 | # include "ev_poll.c" |
710 | # include "ev_poll.c" |
504 | #endif |
711 | #endif |
505 | #if EV_USE_SELECT |
712 | #if EV_USE_SELECT |
506 | # include "ev_select.c" |
713 | # include "ev_select.c" |
507 | #endif |
714 | #endif |
… | |
… | |
520 | |
727 | |
521 | /* return true if we are running with elevated privileges and should ignore env variables */ |
728 | /* return true if we are running with elevated privileges and should ignore env variables */ |
522 | static int |
729 | static int |
523 | enable_secure (void) |
730 | enable_secure (void) |
524 | { |
731 | { |
525 | #ifdef WIN32 |
732 | #ifdef _WIN32 |
526 | return 0; |
733 | return 0; |
527 | #else |
734 | #else |
528 | return getuid () != geteuid () |
735 | return getuid () != geteuid () |
529 | || getgid () != getegid (); |
736 | || getgid () != getegid (); |
530 | #endif |
737 | #endif |
… | |
… | |
534 | ev_method (EV_P) |
741 | ev_method (EV_P) |
535 | { |
742 | { |
536 | return method; |
743 | return method; |
537 | } |
744 | } |
538 | |
745 | |
539 | int |
746 | static void |
540 | ev_init (EV_P_ int methods) |
747 | loop_init (EV_P_ int methods) |
541 | { |
748 | { |
542 | #ifdef EV_MULTIPLICITY |
|
|
543 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
544 | #endif |
|
|
545 | |
|
|
546 | if (!method) |
749 | if (!method) |
547 | { |
750 | { |
548 | #if EV_USE_MONOTONIC |
751 | #if EV_USE_MONOTONIC |
549 | { |
752 | { |
550 | struct timespec ts; |
753 | struct timespec ts; |
551 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
754 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
552 | have_monotonic = 1; |
755 | have_monotonic = 1; |
553 | } |
756 | } |
554 | #endif |
757 | #endif |
555 | |
758 | |
556 | rt_now = ev_time (); |
759 | ev_rt_now = ev_time (); |
557 | mn_now = get_clock (); |
760 | mn_now = get_clock (); |
558 | now_floor = mn_now; |
761 | now_floor = mn_now; |
559 | diff = rt_now - mn_now; |
762 | rtmn_diff = ev_rt_now - mn_now; |
560 | |
|
|
561 | if (pipe (sigpipe)) |
|
|
562 | return 0; |
|
|
563 | |
763 | |
564 | if (methods == EVMETHOD_AUTO) |
764 | if (methods == EVMETHOD_AUTO) |
565 | if (!enable_secure () && getenv ("LIBmethodS")) |
765 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
566 | methods = atoi (getenv ("LIBmethodS")); |
766 | methods = atoi (getenv ("LIBEV_METHODS")); |
567 | else |
767 | else |
568 | methods = EVMETHOD_ANY; |
768 | methods = EVMETHOD_ANY; |
569 | |
769 | |
570 | method = 0; |
770 | method = 0; |
571 | #if EV_USE_KQUEUE |
771 | #if EV_USE_KQUEUE |
572 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
772 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
573 | #endif |
773 | #endif |
574 | #if EV_USE_EPOLL |
774 | #if EV_USE_EPOLL |
575 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
775 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
576 | #endif |
776 | #endif |
577 | #if EV_USEV_POLL |
777 | #if EV_USE_POLL |
578 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
778 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
579 | #endif |
779 | #endif |
580 | #if EV_USE_SELECT |
780 | #if EV_USE_SELECT |
581 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
781 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
582 | #endif |
782 | #endif |
583 | |
783 | |
|
|
784 | ev_init (&sigev, sigcb); |
|
|
785 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
786 | } |
|
|
787 | } |
|
|
788 | |
|
|
789 | void |
|
|
790 | loop_destroy (EV_P) |
|
|
791 | { |
|
|
792 | int i; |
|
|
793 | |
|
|
794 | #if EV_USE_KQUEUE |
|
|
795 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
796 | #endif |
|
|
797 | #if EV_USE_EPOLL |
|
|
798 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
799 | #endif |
|
|
800 | #if EV_USE_POLL |
|
|
801 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
802 | #endif |
|
|
803 | #if EV_USE_SELECT |
|
|
804 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
805 | #endif |
|
|
806 | |
|
|
807 | for (i = NUMPRI; i--; ) |
|
|
808 | array_free (pending, [i]); |
|
|
809 | |
|
|
810 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
811 | array_free (fdchange, EMPTY); |
|
|
812 | array_free (timer, EMPTY); |
|
|
813 | #if EV_PERIODICS |
|
|
814 | array_free (periodic, EMPTY); |
|
|
815 | #endif |
|
|
816 | array_free (idle, EMPTY); |
|
|
817 | array_free (prepare, EMPTY); |
|
|
818 | array_free (check, EMPTY); |
|
|
819 | |
|
|
820 | method = 0; |
|
|
821 | } |
|
|
822 | |
|
|
823 | static void |
|
|
824 | loop_fork (EV_P) |
|
|
825 | { |
|
|
826 | #if EV_USE_EPOLL |
|
|
827 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
828 | #endif |
|
|
829 | #if EV_USE_KQUEUE |
|
|
830 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
831 | #endif |
|
|
832 | |
|
|
833 | if (ev_is_active (&sigev)) |
|
|
834 | { |
|
|
835 | /* default loop */ |
|
|
836 | |
|
|
837 | ev_ref (EV_A); |
|
|
838 | ev_io_stop (EV_A_ &sigev); |
|
|
839 | close (sigpipe [0]); |
|
|
840 | close (sigpipe [1]); |
|
|
841 | |
|
|
842 | while (pipe (sigpipe)) |
|
|
843 | syserr ("(libev) error creating pipe"); |
|
|
844 | |
|
|
845 | siginit (EV_A); |
|
|
846 | } |
|
|
847 | |
|
|
848 | postfork = 0; |
|
|
849 | } |
|
|
850 | |
|
|
851 | #if EV_MULTIPLICITY |
|
|
852 | struct ev_loop * |
|
|
853 | ev_loop_new (int methods) |
|
|
854 | { |
|
|
855 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
856 | |
|
|
857 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
858 | |
|
|
859 | loop_init (EV_A_ methods); |
|
|
860 | |
|
|
861 | if (ev_method (EV_A)) |
|
|
862 | return loop; |
|
|
863 | |
|
|
864 | return 0; |
|
|
865 | } |
|
|
866 | |
|
|
867 | void |
|
|
868 | ev_loop_destroy (EV_P) |
|
|
869 | { |
|
|
870 | loop_destroy (EV_A); |
|
|
871 | ev_free (loop); |
|
|
872 | } |
|
|
873 | |
|
|
874 | void |
|
|
875 | ev_loop_fork (EV_P) |
|
|
876 | { |
|
|
877 | postfork = 1; |
|
|
878 | } |
|
|
879 | |
|
|
880 | #endif |
|
|
881 | |
|
|
882 | #if EV_MULTIPLICITY |
|
|
883 | struct ev_loop * |
|
|
884 | #else |
|
|
885 | int |
|
|
886 | #endif |
|
|
887 | ev_default_loop (int methods) |
|
|
888 | { |
|
|
889 | if (sigpipe [0] == sigpipe [1]) |
|
|
890 | if (pipe (sigpipe)) |
|
|
891 | return 0; |
|
|
892 | |
|
|
893 | if (!default_loop) |
|
|
894 | { |
|
|
895 | #if EV_MULTIPLICITY |
|
|
896 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
897 | #else |
|
|
898 | default_loop = 1; |
|
|
899 | #endif |
|
|
900 | |
|
|
901 | loop_init (EV_A_ methods); |
|
|
902 | |
584 | if (method) |
903 | if (ev_method (EV_A)) |
585 | { |
904 | { |
586 | ev_watcher_init (&sigev, sigcb); |
|
|
587 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
588 | siginit (EV_A); |
905 | siginit (EV_A); |
589 | |
906 | |
590 | #ifndef WIN32 |
907 | #ifndef _WIN32 |
591 | ev_signal_init (&childev, childcb, SIGCHLD); |
908 | ev_signal_init (&childev, childcb, SIGCHLD); |
592 | ev_set_priority (&childev, EV_MAXPRI); |
909 | ev_set_priority (&childev, EV_MAXPRI); |
593 | ev_signal_start (EV_A_ &childev); |
910 | ev_signal_start (EV_A_ &childev); |
594 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
911 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
595 | #endif |
912 | #endif |
596 | } |
913 | } |
|
|
914 | else |
|
|
915 | default_loop = 0; |
597 | } |
916 | } |
598 | |
917 | |
599 | return method; |
918 | return default_loop; |
|
|
919 | } |
|
|
920 | |
|
|
921 | void |
|
|
922 | ev_default_destroy (void) |
|
|
923 | { |
|
|
924 | #if EV_MULTIPLICITY |
|
|
925 | struct ev_loop *loop = default_loop; |
|
|
926 | #endif |
|
|
927 | |
|
|
928 | #ifndef _WIN32 |
|
|
929 | ev_ref (EV_A); /* child watcher */ |
|
|
930 | ev_signal_stop (EV_A_ &childev); |
|
|
931 | #endif |
|
|
932 | |
|
|
933 | ev_ref (EV_A); /* signal watcher */ |
|
|
934 | ev_io_stop (EV_A_ &sigev); |
|
|
935 | |
|
|
936 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
937 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
938 | |
|
|
939 | loop_destroy (EV_A); |
|
|
940 | } |
|
|
941 | |
|
|
942 | void |
|
|
943 | ev_default_fork (void) |
|
|
944 | { |
|
|
945 | #if EV_MULTIPLICITY |
|
|
946 | struct ev_loop *loop = default_loop; |
|
|
947 | #endif |
|
|
948 | |
|
|
949 | if (method) |
|
|
950 | postfork = 1; |
600 | } |
951 | } |
601 | |
952 | |
602 | /*****************************************************************************/ |
953 | /*****************************************************************************/ |
603 | |
954 | |
604 | void |
955 | static int |
605 | ev_fork_prepare (void) |
956 | any_pending (EV_P) |
606 | { |
957 | { |
607 | /* nop */ |
958 | int pri; |
608 | } |
|
|
609 | |
959 | |
610 | void |
960 | for (pri = NUMPRI; pri--; ) |
611 | ev_fork_parent (void) |
961 | if (pendingcnt [pri]) |
612 | { |
962 | return 1; |
613 | /* nop */ |
|
|
614 | } |
|
|
615 | |
963 | |
616 | void |
964 | return 0; |
617 | ev_fork_child (void) |
|
|
618 | { |
|
|
619 | #if EV_USE_EPOLL |
|
|
620 | if (method == EVMETHOD_EPOLL) |
|
|
621 | epoll_postfork_child (); |
|
|
622 | #endif |
|
|
623 | |
|
|
624 | ev_io_stop (&sigev); |
|
|
625 | close (sigpipe [0]); |
|
|
626 | close (sigpipe [1]); |
|
|
627 | pipe (sigpipe); |
|
|
628 | siginit (); |
|
|
629 | } |
965 | } |
630 | |
|
|
631 | /*****************************************************************************/ |
|
|
632 | |
966 | |
633 | static void |
967 | static void |
634 | call_pending (EV_P) |
968 | call_pending (EV_P) |
635 | { |
969 | { |
636 | int pri; |
970 | int pri; |
… | |
… | |
641 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
975 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
642 | |
976 | |
643 | if (p->w) |
977 | if (p->w) |
644 | { |
978 | { |
645 | p->w->pending = 0; |
979 | p->w->pending = 0; |
646 | p->w->cb (EV_A_ p->w, p->events); |
980 | EV_CB_INVOKE (p->w, p->events); |
647 | } |
981 | } |
648 | } |
982 | } |
649 | } |
983 | } |
650 | |
984 | |
651 | static void |
985 | static void |
652 | timers_reify (EV_P) |
986 | timers_reify (EV_P) |
653 | { |
987 | { |
654 | while (timercnt && timers [0]->at <= mn_now) |
988 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
655 | { |
989 | { |
656 | struct ev_timer *w = timers [0]; |
990 | struct ev_timer *w = timers [0]; |
|
|
991 | |
|
|
992 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
657 | |
993 | |
658 | /* first reschedule or stop timer */ |
994 | /* first reschedule or stop timer */ |
659 | if (w->repeat) |
995 | if (w->repeat) |
660 | { |
996 | { |
661 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
997 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
998 | |
662 | w->at = mn_now + w->repeat; |
999 | ((WT)w)->at += w->repeat; |
|
|
1000 | if (((WT)w)->at < mn_now) |
|
|
1001 | ((WT)w)->at = mn_now; |
|
|
1002 | |
663 | downheap ((WT *)timers, timercnt, 0); |
1003 | downheap ((WT *)timers, timercnt, 0); |
664 | } |
1004 | } |
665 | else |
1005 | else |
666 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1006 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
667 | |
1007 | |
668 | event ((W)w, EV_TIMEOUT); |
1008 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
669 | } |
1009 | } |
670 | } |
1010 | } |
671 | |
1011 | |
|
|
1012 | #if EV_PERIODICS |
672 | static void |
1013 | static void |
673 | periodics_reify (EV_P) |
1014 | periodics_reify (EV_P) |
674 | { |
1015 | { |
675 | while (periodiccnt && periodics [0]->at <= rt_now) |
1016 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
676 | { |
1017 | { |
677 | struct ev_periodic *w = periodics [0]; |
1018 | struct ev_periodic *w = periodics [0]; |
678 | |
1019 | |
|
|
1020 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1021 | |
679 | /* first reschedule or stop timer */ |
1022 | /* first reschedule or stop timer */ |
680 | if (w->interval) |
1023 | if (w->reschedule_cb) |
681 | { |
1024 | { |
|
|
1025 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1026 | |
|
|
1027 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1028 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1029 | } |
|
|
1030 | else if (w->interval) |
|
|
1031 | { |
682 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1032 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
683 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1033 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
684 | downheap ((WT *)periodics, periodiccnt, 0); |
1034 | downheap ((WT *)periodics, periodiccnt, 0); |
685 | } |
1035 | } |
686 | else |
1036 | else |
687 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1037 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
688 | |
1038 | |
689 | event (EV_A_ (W)w, EV_PERIODIC); |
1039 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
690 | } |
1040 | } |
691 | } |
1041 | } |
692 | |
1042 | |
693 | static void |
1043 | static void |
694 | periodics_reschedule (EV_P_ ev_tstamp diff) |
1044 | periodics_reschedule (EV_P) |
695 | { |
1045 | { |
696 | int i; |
1046 | int i; |
697 | |
1047 | |
698 | /* adjust periodics after time jump */ |
1048 | /* adjust periodics after time jump */ |
699 | for (i = 0; i < periodiccnt; ++i) |
1049 | for (i = 0; i < periodiccnt; ++i) |
700 | { |
1050 | { |
701 | struct ev_periodic *w = periodics [i]; |
1051 | struct ev_periodic *w = periodics [i]; |
702 | |
1052 | |
|
|
1053 | if (w->reschedule_cb) |
|
|
1054 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
703 | if (w->interval) |
1055 | else if (w->interval) |
704 | { |
|
|
705 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1056 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
706 | |
|
|
707 | if (fabs (diff) >= 1e-4) |
|
|
708 | { |
|
|
709 | ev_periodic_stop (EV_A_ w); |
|
|
710 | ev_periodic_start (EV_A_ w); |
|
|
711 | |
|
|
712 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
713 | } |
|
|
714 | } |
|
|
715 | } |
1057 | } |
|
|
1058 | |
|
|
1059 | /* now rebuild the heap */ |
|
|
1060 | for (i = periodiccnt >> 1; i--; ) |
|
|
1061 | downheap ((WT *)periodics, periodiccnt, i); |
716 | } |
1062 | } |
|
|
1063 | #endif |
717 | |
1064 | |
718 | inline int |
1065 | inline int |
719 | time_update_monotonic (EV_P) |
1066 | time_update_monotonic (EV_P) |
720 | { |
1067 | { |
721 | mn_now = get_clock (); |
1068 | mn_now = get_clock (); |
722 | |
1069 | |
723 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1070 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
724 | { |
1071 | { |
725 | rt_now = mn_now + diff; |
1072 | ev_rt_now = rtmn_diff + mn_now; |
726 | return 0; |
1073 | return 0; |
727 | } |
1074 | } |
728 | else |
1075 | else |
729 | { |
1076 | { |
730 | now_floor = mn_now; |
1077 | now_floor = mn_now; |
731 | rt_now = ev_time (); |
1078 | ev_rt_now = ev_time (); |
732 | return 1; |
1079 | return 1; |
733 | } |
1080 | } |
734 | } |
1081 | } |
735 | |
1082 | |
736 | static void |
1083 | static void |
… | |
… | |
741 | #if EV_USE_MONOTONIC |
1088 | #if EV_USE_MONOTONIC |
742 | if (expect_true (have_monotonic)) |
1089 | if (expect_true (have_monotonic)) |
743 | { |
1090 | { |
744 | if (time_update_monotonic (EV_A)) |
1091 | if (time_update_monotonic (EV_A)) |
745 | { |
1092 | { |
746 | ev_tstamp odiff = diff; |
1093 | ev_tstamp odiff = rtmn_diff; |
747 | |
1094 | |
748 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1095 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
749 | { |
1096 | { |
750 | diff = rt_now - mn_now; |
1097 | rtmn_diff = ev_rt_now - mn_now; |
751 | |
1098 | |
752 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1099 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
753 | return; /* all is well */ |
1100 | return; /* all is well */ |
754 | |
1101 | |
755 | rt_now = ev_time (); |
1102 | ev_rt_now = ev_time (); |
756 | mn_now = get_clock (); |
1103 | mn_now = get_clock (); |
757 | now_floor = mn_now; |
1104 | now_floor = mn_now; |
758 | } |
1105 | } |
759 | |
1106 | |
|
|
1107 | # if EV_PERIODICS |
760 | periodics_reschedule (EV_A_ diff - odiff); |
1108 | periodics_reschedule (EV_A); |
|
|
1109 | # endif |
761 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1110 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1111 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
762 | } |
1112 | } |
763 | } |
1113 | } |
764 | else |
1114 | else |
765 | #endif |
1115 | #endif |
766 | { |
1116 | { |
767 | rt_now = ev_time (); |
1117 | ev_rt_now = ev_time (); |
768 | |
1118 | |
769 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1119 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
770 | { |
1120 | { |
|
|
1121 | #if EV_PERIODICS |
771 | periodics_reschedule (EV_A_ rt_now - mn_now); |
1122 | periodics_reschedule (EV_A); |
|
|
1123 | #endif |
772 | |
1124 | |
773 | /* adjust timers. this is easy, as the offset is the same for all */ |
1125 | /* adjust timers. this is easy, as the offset is the same for all */ |
774 | for (i = 0; i < timercnt; ++i) |
1126 | for (i = 0; i < timercnt; ++i) |
775 | timers [i]->at += diff; |
1127 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
776 | } |
1128 | } |
777 | |
1129 | |
778 | mn_now = rt_now; |
1130 | mn_now = ev_rt_now; |
779 | } |
1131 | } |
780 | } |
1132 | } |
781 | |
1133 | |
782 | void |
1134 | void |
783 | ev_ref (EV_P) |
1135 | ev_ref (EV_P) |
… | |
… | |
806 | { |
1158 | { |
807 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1159 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
808 | call_pending (EV_A); |
1160 | call_pending (EV_A); |
809 | } |
1161 | } |
810 | |
1162 | |
|
|
1163 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1164 | if (expect_false (postfork)) |
|
|
1165 | loop_fork (EV_A); |
|
|
1166 | |
811 | /* update fd-related kernel structures */ |
1167 | /* update fd-related kernel structures */ |
812 | fd_reify (EV_A); |
1168 | fd_reify (EV_A); |
813 | |
1169 | |
814 | /* calculate blocking time */ |
1170 | /* calculate blocking time */ |
815 | |
1171 | |
816 | /* we only need this for !monotonic clockor timers, but as we basically |
1172 | /* we only need this for !monotonic clock or timers, but as we basically |
817 | always have timers, we just calculate it always */ |
1173 | always have timers, we just calculate it always */ |
818 | #if EV_USE_MONOTONIC |
1174 | #if EV_USE_MONOTONIC |
819 | if (expect_true (have_monotonic)) |
1175 | if (expect_true (have_monotonic)) |
820 | time_update_monotonic (EV_A); |
1176 | time_update_monotonic (EV_A); |
821 | else |
1177 | else |
822 | #endif |
1178 | #endif |
823 | { |
1179 | { |
824 | rt_now = ev_time (); |
1180 | ev_rt_now = ev_time (); |
825 | mn_now = rt_now; |
1181 | mn_now = ev_rt_now; |
826 | } |
1182 | } |
827 | |
1183 | |
828 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1184 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
829 | block = 0.; |
1185 | block = 0.; |
830 | else |
1186 | else |
831 | { |
1187 | { |
832 | block = MAX_BLOCKTIME; |
1188 | block = MAX_BLOCKTIME; |
833 | |
1189 | |
834 | if (timercnt) |
1190 | if (timercnt) |
835 | { |
1191 | { |
836 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1192 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
837 | if (block > to) block = to; |
1193 | if (block > to) block = to; |
838 | } |
1194 | } |
839 | |
1195 | |
|
|
1196 | #if EV_PERIODICS |
840 | if (periodiccnt) |
1197 | if (periodiccnt) |
841 | { |
1198 | { |
842 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1199 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
843 | if (block > to) block = to; |
1200 | if (block > to) block = to; |
844 | } |
1201 | } |
|
|
1202 | #endif |
845 | |
1203 | |
846 | if (block < 0.) block = 0.; |
1204 | if (block < 0.) block = 0.; |
847 | } |
1205 | } |
848 | |
1206 | |
849 | method_poll (EV_A_ block); |
1207 | method_poll (EV_A_ block); |
850 | |
1208 | |
851 | /* update rt_now, do magic */ |
1209 | /* update ev_rt_now, do magic */ |
852 | time_update (EV_A); |
1210 | time_update (EV_A); |
853 | |
1211 | |
854 | /* queue pending timers and reschedule them */ |
1212 | /* queue pending timers and reschedule them */ |
855 | timers_reify (EV_A); /* relative timers called last */ |
1213 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1214 | #if EV_PERIODICS |
856 | periodics_reify (EV_A); /* absolute timers called first */ |
1215 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1216 | #endif |
857 | |
1217 | |
858 | /* queue idle watchers unless io or timers are pending */ |
1218 | /* queue idle watchers unless io or timers are pending */ |
859 | if (!pendingcnt) |
1219 | if (idlecnt && !any_pending (EV_A)) |
860 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1220 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
861 | |
1221 | |
862 | /* queue check watchers, to be executed first */ |
1222 | /* queue check watchers, to be executed first */ |
863 | if (checkcnt) |
1223 | if (checkcnt) |
864 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1224 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
… | |
… | |
939 | return; |
1299 | return; |
940 | |
1300 | |
941 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1301 | assert (("ev_io_start called with negative fd", fd >= 0)); |
942 | |
1302 | |
943 | ev_start (EV_A_ (W)w, 1); |
1303 | ev_start (EV_A_ (W)w, 1); |
944 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1304 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
945 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1305 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
946 | |
1306 | |
947 | fd_change (EV_A_ fd); |
1307 | fd_change (EV_A_ fd); |
948 | } |
1308 | } |
949 | |
1309 | |
… | |
… | |
952 | { |
1312 | { |
953 | ev_clear_pending (EV_A_ (W)w); |
1313 | ev_clear_pending (EV_A_ (W)w); |
954 | if (!ev_is_active (w)) |
1314 | if (!ev_is_active (w)) |
955 | return; |
1315 | return; |
956 | |
1316 | |
|
|
1317 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1318 | |
957 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1319 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
958 | ev_stop (EV_A_ (W)w); |
1320 | ev_stop (EV_A_ (W)w); |
959 | |
1321 | |
960 | fd_change (EV_A_ w->fd); |
1322 | fd_change (EV_A_ w->fd); |
961 | } |
1323 | } |
… | |
… | |
964 | ev_timer_start (EV_P_ struct ev_timer *w) |
1326 | ev_timer_start (EV_P_ struct ev_timer *w) |
965 | { |
1327 | { |
966 | if (ev_is_active (w)) |
1328 | if (ev_is_active (w)) |
967 | return; |
1329 | return; |
968 | |
1330 | |
969 | w->at += mn_now; |
1331 | ((WT)w)->at += mn_now; |
970 | |
1332 | |
971 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1333 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
972 | |
1334 | |
973 | ev_start (EV_A_ (W)w, ++timercnt); |
1335 | ev_start (EV_A_ (W)w, ++timercnt); |
974 | array_needsize (timers, timermax, timercnt, ); |
1336 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
975 | timers [timercnt - 1] = w; |
1337 | timers [timercnt - 1] = w; |
976 | upheap ((WT *)timers, timercnt - 1); |
1338 | upheap ((WT *)timers, timercnt - 1); |
|
|
1339 | |
|
|
1340 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
977 | } |
1341 | } |
978 | |
1342 | |
979 | void |
1343 | void |
980 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1344 | ev_timer_stop (EV_P_ struct ev_timer *w) |
981 | { |
1345 | { |
982 | ev_clear_pending (EV_A_ (W)w); |
1346 | ev_clear_pending (EV_A_ (W)w); |
983 | if (!ev_is_active (w)) |
1347 | if (!ev_is_active (w)) |
984 | return; |
1348 | return; |
985 | |
1349 | |
|
|
1350 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1351 | |
986 | if (w->active < timercnt--) |
1352 | if (((W)w)->active < timercnt--) |
987 | { |
1353 | { |
988 | timers [w->active - 1] = timers [timercnt]; |
1354 | timers [((W)w)->active - 1] = timers [timercnt]; |
989 | downheap ((WT *)timers, timercnt, w->active - 1); |
1355 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
990 | } |
1356 | } |
991 | |
1357 | |
992 | w->at = w->repeat; |
1358 | ((WT)w)->at -= mn_now; |
993 | |
1359 | |
994 | ev_stop (EV_A_ (W)w); |
1360 | ev_stop (EV_A_ (W)w); |
995 | } |
1361 | } |
996 | |
1362 | |
997 | void |
1363 | void |
… | |
… | |
999 | { |
1365 | { |
1000 | if (ev_is_active (w)) |
1366 | if (ev_is_active (w)) |
1001 | { |
1367 | { |
1002 | if (w->repeat) |
1368 | if (w->repeat) |
1003 | { |
1369 | { |
1004 | w->at = mn_now + w->repeat; |
1370 | ((WT)w)->at = mn_now + w->repeat; |
1005 | downheap ((WT *)timers, timercnt, w->active - 1); |
1371 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1006 | } |
1372 | } |
1007 | else |
1373 | else |
1008 | ev_timer_stop (EV_A_ w); |
1374 | ev_timer_stop (EV_A_ w); |
1009 | } |
1375 | } |
1010 | else if (w->repeat) |
1376 | else if (w->repeat) |
1011 | ev_timer_start (EV_A_ w); |
1377 | ev_timer_start (EV_A_ w); |
1012 | } |
1378 | } |
1013 | |
1379 | |
|
|
1380 | #if EV_PERIODICS |
1014 | void |
1381 | void |
1015 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1382 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1016 | { |
1383 | { |
1017 | if (ev_is_active (w)) |
1384 | if (ev_is_active (w)) |
1018 | return; |
1385 | return; |
1019 | |
1386 | |
|
|
1387 | if (w->reschedule_cb) |
|
|
1388 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1389 | else if (w->interval) |
|
|
1390 | { |
1020 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1391 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1021 | |
|
|
1022 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1392 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1023 | if (w->interval) |
|
|
1024 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1393 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1394 | } |
1025 | |
1395 | |
1026 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1396 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1027 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1397 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1028 | periodics [periodiccnt - 1] = w; |
1398 | periodics [periodiccnt - 1] = w; |
1029 | upheap ((WT *)periodics, periodiccnt - 1); |
1399 | upheap ((WT *)periodics, periodiccnt - 1); |
|
|
1400 | |
|
|
1401 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1030 | } |
1402 | } |
1031 | |
1403 | |
1032 | void |
1404 | void |
1033 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1405 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1034 | { |
1406 | { |
1035 | ev_clear_pending (EV_A_ (W)w); |
1407 | ev_clear_pending (EV_A_ (W)w); |
1036 | if (!ev_is_active (w)) |
1408 | if (!ev_is_active (w)) |
1037 | return; |
1409 | return; |
1038 | |
1410 | |
|
|
1411 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1412 | |
1039 | if (w->active < periodiccnt--) |
1413 | if (((W)w)->active < periodiccnt--) |
1040 | { |
1414 | { |
1041 | periodics [w->active - 1] = periodics [periodiccnt]; |
1415 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1042 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1416 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1043 | } |
1417 | } |
1044 | |
1418 | |
|
|
1419 | ev_stop (EV_A_ (W)w); |
|
|
1420 | } |
|
|
1421 | |
|
|
1422 | void |
|
|
1423 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1424 | { |
|
|
1425 | /* TODO: use adjustheap and recalculation */ |
|
|
1426 | ev_periodic_stop (EV_A_ w); |
|
|
1427 | ev_periodic_start (EV_A_ w); |
|
|
1428 | } |
|
|
1429 | #endif |
|
|
1430 | |
|
|
1431 | void |
|
|
1432 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1433 | { |
|
|
1434 | if (ev_is_active (w)) |
|
|
1435 | return; |
|
|
1436 | |
|
|
1437 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1438 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1439 | idles [idlecnt - 1] = w; |
|
|
1440 | } |
|
|
1441 | |
|
|
1442 | void |
|
|
1443 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1444 | { |
|
|
1445 | ev_clear_pending (EV_A_ (W)w); |
|
|
1446 | if (!ev_is_active (w)) |
|
|
1447 | return; |
|
|
1448 | |
|
|
1449 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1450 | ev_stop (EV_A_ (W)w); |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | void |
|
|
1454 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1455 | { |
|
|
1456 | if (ev_is_active (w)) |
|
|
1457 | return; |
|
|
1458 | |
|
|
1459 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1460 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1461 | prepares [preparecnt - 1] = w; |
|
|
1462 | } |
|
|
1463 | |
|
|
1464 | void |
|
|
1465 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1466 | { |
|
|
1467 | ev_clear_pending (EV_A_ (W)w); |
|
|
1468 | if (!ev_is_active (w)) |
|
|
1469 | return; |
|
|
1470 | |
|
|
1471 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1472 | ev_stop (EV_A_ (W)w); |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | void |
|
|
1476 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1477 | { |
|
|
1478 | if (ev_is_active (w)) |
|
|
1479 | return; |
|
|
1480 | |
|
|
1481 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1482 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1483 | checks [checkcnt - 1] = w; |
|
|
1484 | } |
|
|
1485 | |
|
|
1486 | void |
|
|
1487 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1488 | { |
|
|
1489 | ev_clear_pending (EV_A_ (W)w); |
|
|
1490 | if (!ev_is_active (w)) |
|
|
1491 | return; |
|
|
1492 | |
|
|
1493 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1045 | ev_stop (EV_A_ (W)w); |
1494 | ev_stop (EV_A_ (W)w); |
1046 | } |
1495 | } |
1047 | |
1496 | |
1048 | #ifndef SA_RESTART |
1497 | #ifndef SA_RESTART |
1049 | # define SA_RESTART 0 |
1498 | # define SA_RESTART 0 |
1050 | #endif |
1499 | #endif |
1051 | |
1500 | |
1052 | void |
1501 | void |
1053 | ev_signal_start (EV_P_ struct ev_signal *w) |
1502 | ev_signal_start (EV_P_ struct ev_signal *w) |
1054 | { |
1503 | { |
|
|
1504 | #if EV_MULTIPLICITY |
|
|
1505 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1506 | #endif |
1055 | if (ev_is_active (w)) |
1507 | if (ev_is_active (w)) |
1056 | return; |
1508 | return; |
1057 | |
1509 | |
1058 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1510 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1059 | |
1511 | |
1060 | ev_start (EV_A_ (W)w, 1); |
1512 | ev_start (EV_A_ (W)w, 1); |
1061 | array_needsize (signals, signalmax, w->signum, signals_init); |
1513 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1062 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1514 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1063 | |
1515 | |
1064 | if (!w->next) |
1516 | if (!((WL)w)->next) |
1065 | { |
1517 | { |
|
|
1518 | #if _WIN32 |
|
|
1519 | signal (w->signum, sighandler); |
|
|
1520 | #else |
1066 | struct sigaction sa; |
1521 | struct sigaction sa; |
1067 | sa.sa_handler = sighandler; |
1522 | sa.sa_handler = sighandler; |
1068 | sigfillset (&sa.sa_mask); |
1523 | sigfillset (&sa.sa_mask); |
1069 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1524 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1070 | sigaction (w->signum, &sa, 0); |
1525 | sigaction (w->signum, &sa, 0); |
|
|
1526 | #endif |
1071 | } |
1527 | } |
1072 | } |
1528 | } |
1073 | |
1529 | |
1074 | void |
1530 | void |
1075 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1531 | ev_signal_stop (EV_P_ struct ev_signal *w) |
… | |
… | |
1084 | if (!signals [w->signum - 1].head) |
1540 | if (!signals [w->signum - 1].head) |
1085 | signal (w->signum, SIG_DFL); |
1541 | signal (w->signum, SIG_DFL); |
1086 | } |
1542 | } |
1087 | |
1543 | |
1088 | void |
1544 | void |
1089 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1090 | { |
|
|
1091 | if (ev_is_active (w)) |
|
|
1092 | return; |
|
|
1093 | |
|
|
1094 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1095 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1096 | idles [idlecnt - 1] = w; |
|
|
1097 | } |
|
|
1098 | |
|
|
1099 | void |
|
|
1100 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1101 | { |
|
|
1102 | ev_clear_pending (EV_A_ (W)w); |
|
|
1103 | if (ev_is_active (w)) |
|
|
1104 | return; |
|
|
1105 | |
|
|
1106 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1107 | ev_stop (EV_A_ (W)w); |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | void |
|
|
1111 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1112 | { |
|
|
1113 | if (ev_is_active (w)) |
|
|
1114 | return; |
|
|
1115 | |
|
|
1116 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1117 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1118 | prepares [preparecnt - 1] = w; |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | void |
|
|
1122 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1123 | { |
|
|
1124 | ev_clear_pending (EV_A_ (W)w); |
|
|
1125 | if (ev_is_active (w)) |
|
|
1126 | return; |
|
|
1127 | |
|
|
1128 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1129 | ev_stop (EV_A_ (W)w); |
|
|
1130 | } |
|
|
1131 | |
|
|
1132 | void |
|
|
1133 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1134 | { |
|
|
1135 | if (ev_is_active (w)) |
|
|
1136 | return; |
|
|
1137 | |
|
|
1138 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1139 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1140 | checks [checkcnt - 1] = w; |
|
|
1141 | } |
|
|
1142 | |
|
|
1143 | void |
|
|
1144 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1145 | { |
|
|
1146 | ev_clear_pending (EV_A_ (W)w); |
|
|
1147 | if (ev_is_active (w)) |
|
|
1148 | return; |
|
|
1149 | |
|
|
1150 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1151 | ev_stop (EV_A_ (W)w); |
|
|
1152 | } |
|
|
1153 | |
|
|
1154 | void |
|
|
1155 | ev_child_start (EV_P_ struct ev_child *w) |
1545 | ev_child_start (EV_P_ struct ev_child *w) |
1156 | { |
1546 | { |
|
|
1547 | #if EV_MULTIPLICITY |
|
|
1548 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1549 | #endif |
1157 | if (ev_is_active (w)) |
1550 | if (ev_is_active (w)) |
1158 | return; |
1551 | return; |
1159 | |
1552 | |
1160 | ev_start (EV_A_ (W)w, 1); |
1553 | ev_start (EV_A_ (W)w, 1); |
1161 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1554 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
… | |
… | |
1163 | |
1556 | |
1164 | void |
1557 | void |
1165 | ev_child_stop (EV_P_ struct ev_child *w) |
1558 | ev_child_stop (EV_P_ struct ev_child *w) |
1166 | { |
1559 | { |
1167 | ev_clear_pending (EV_A_ (W)w); |
1560 | ev_clear_pending (EV_A_ (W)w); |
1168 | if (ev_is_active (w)) |
1561 | if (!ev_is_active (w)) |
1169 | return; |
1562 | return; |
1170 | |
1563 | |
1171 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1564 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1172 | ev_stop (EV_A_ (W)w); |
1565 | ev_stop (EV_A_ (W)w); |
1173 | } |
1566 | } |
… | |
… | |
1188 | void (*cb)(int revents, void *arg) = once->cb; |
1581 | void (*cb)(int revents, void *arg) = once->cb; |
1189 | void *arg = once->arg; |
1582 | void *arg = once->arg; |
1190 | |
1583 | |
1191 | ev_io_stop (EV_A_ &once->io); |
1584 | ev_io_stop (EV_A_ &once->io); |
1192 | ev_timer_stop (EV_A_ &once->to); |
1585 | ev_timer_stop (EV_A_ &once->to); |
1193 | free (once); |
1586 | ev_free (once); |
1194 | |
1587 | |
1195 | cb (revents, arg); |
1588 | cb (revents, arg); |
1196 | } |
1589 | } |
1197 | |
1590 | |
1198 | static void |
1591 | static void |
… | |
… | |
1208 | } |
1601 | } |
1209 | |
1602 | |
1210 | void |
1603 | void |
1211 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1604 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1212 | { |
1605 | { |
1213 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1606 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1214 | |
1607 | |
1215 | if (!once) |
1608 | if (!once) |
1216 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1609 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1217 | else |
1610 | else |
1218 | { |
1611 | { |
1219 | once->cb = cb; |
1612 | once->cb = cb; |
1220 | once->arg = arg; |
1613 | once->arg = arg; |
1221 | |
1614 | |
1222 | ev_watcher_init (&once->io, once_cb_io); |
1615 | ev_init (&once->io, once_cb_io); |
1223 | if (fd >= 0) |
1616 | if (fd >= 0) |
1224 | { |
1617 | { |
1225 | ev_io_set (&once->io, fd, events); |
1618 | ev_io_set (&once->io, fd, events); |
1226 | ev_io_start (EV_A_ &once->io); |
1619 | ev_io_start (EV_A_ &once->io); |
1227 | } |
1620 | } |
1228 | |
1621 | |
1229 | ev_watcher_init (&once->to, once_cb_to); |
1622 | ev_init (&once->to, once_cb_to); |
1230 | if (timeout >= 0.) |
1623 | if (timeout >= 0.) |
1231 | { |
1624 | { |
1232 | ev_timer_set (&once->to, timeout, 0.); |
1625 | ev_timer_set (&once->to, timeout, 0.); |
1233 | ev_timer_start (EV_A_ &once->to); |
1626 | ev_timer_start (EV_A_ &once->to); |
1234 | } |
1627 | } |
1235 | } |
1628 | } |
1236 | } |
1629 | } |
1237 | |
1630 | |
1238 | /*****************************************************************************/ |
1631 | #ifdef __cplusplus |
1239 | |
|
|
1240 | #if 0 |
|
|
1241 | |
|
|
1242 | struct ev_io wio; |
|
|
1243 | |
|
|
1244 | static void |
|
|
1245 | sin_cb (struct ev_io *w, int revents) |
|
|
1246 | { |
|
|
1247 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1248 | } |
1632 | } |
1249 | |
|
|
1250 | static void |
|
|
1251 | ocb (struct ev_timer *w, int revents) |
|
|
1252 | { |
|
|
1253 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1254 | ev_timer_stop (w); |
|
|
1255 | ev_timer_start (w); |
|
|
1256 | } |
|
|
1257 | |
|
|
1258 | static void |
|
|
1259 | scb (struct ev_signal *w, int revents) |
|
|
1260 | { |
|
|
1261 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1262 | ev_io_stop (&wio); |
|
|
1263 | ev_io_start (&wio); |
|
|
1264 | } |
|
|
1265 | |
|
|
1266 | static void |
|
|
1267 | gcb (struct ev_signal *w, int revents) |
|
|
1268 | { |
|
|
1269 | fprintf (stderr, "generic %x\n", revents); |
|
|
1270 | |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | int main (void) |
|
|
1274 | { |
|
|
1275 | ev_init (0); |
|
|
1276 | |
|
|
1277 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1278 | ev_io_start (&wio); |
|
|
1279 | |
|
|
1280 | struct ev_timer t[10000]; |
|
|
1281 | |
|
|
1282 | #if 0 |
|
|
1283 | int i; |
|
|
1284 | for (i = 0; i < 10000; ++i) |
|
|
1285 | { |
|
|
1286 | struct ev_timer *w = t + i; |
|
|
1287 | ev_watcher_init (w, ocb, i); |
|
|
1288 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1289 | ev_timer_start (w); |
|
|
1290 | if (drand48 () < 0.5) |
|
|
1291 | ev_timer_stop (w); |
|
|
1292 | } |
|
|
1293 | #endif |
1633 | #endif |
1294 | |
1634 | |
1295 | struct ev_timer t1; |
|
|
1296 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1297 | ev_timer_start (&t1); |
|
|
1298 | |
|
|
1299 | struct ev_signal sig; |
|
|
1300 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1301 | ev_signal_start (&sig); |
|
|
1302 | |
|
|
1303 | struct ev_check cw; |
|
|
1304 | ev_check_init (&cw, gcb); |
|
|
1305 | ev_check_start (&cw); |
|
|
1306 | |
|
|
1307 | struct ev_idle iw; |
|
|
1308 | ev_idle_init (&iw, gcb); |
|
|
1309 | ev_idle_start (&iw); |
|
|
1310 | |
|
|
1311 | ev_loop (0); |
|
|
1312 | |
|
|
1313 | return 0; |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | #endif |
|
|
1317 | |
|
|
1318 | |
|
|
1319 | |
|
|
1320 | |
|
|