… | |
… | |
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 | #ifndef EV_STANDALONE |
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 |
58 | |
81 | |
59 | #ifndef EV_USE_SELECT |
82 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
83 | # define EV_USE_SELECT 1 |
61 | #endif |
84 | #endif |
62 | |
85 | |
63 | #ifndef EV_USEV_POLL |
86 | #ifndef EV_USE_POLL |
64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
87 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
65 | #endif |
88 | #endif |
66 | |
89 | |
67 | #ifndef EV_USE_EPOLL |
90 | #ifndef EV_USE_EPOLL |
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 |
… | |
… | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
126 | #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) */ |
127 | #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 */ |
128 | #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 */ |
129 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
97 | |
130 | |
|
|
131 | #ifdef EV_H |
|
|
132 | # include EV_H |
|
|
133 | #else |
98 | #include "ev.h" |
134 | # include "ev.h" |
|
|
135 | #endif |
99 | |
136 | |
100 | #if __GNUC__ >= 3 |
137 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
138 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
102 | # define inline inline |
139 | # define inline inline |
103 | #else |
140 | #else |
… | |
… | |
113 | |
150 | |
114 | typedef struct ev_watcher *W; |
151 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
152 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
153 | typedef struct ev_watcher_time *WT; |
117 | |
154 | |
118 | static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */ |
155 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
119 | static ev_tstamp rt_now; |
|
|
120 | static int method; |
|
|
121 | |
156 | |
122 | static int have_monotonic; /* runtime */ |
157 | #include "ev_win32.c" |
123 | |
158 | |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
159 | /*****************************************************************************/ |
125 | static void (*method_modify)(EV_P_ int fd, int oev, int nev); |
|
|
126 | static void (*method_poll)(EV_P_ ev_tstamp timeout); |
|
|
127 | |
160 | |
128 | static int activecnt; /* number of active events */ |
161 | static void (*syserr_cb)(const char *msg); |
129 | |
162 | |
130 | #if EV_USE_SELECT |
163 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
131 | static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo; |
164 | { |
132 | static int vec_max; |
165 | syserr_cb = cb; |
133 | #endif |
166 | } |
134 | |
167 | |
135 | #if EV_USEV_POLL |
168 | static void |
136 | static struct pollfd *polls; |
169 | syserr (const char *msg) |
137 | static int pollmax, pollcnt; |
170 | { |
138 | static int *pollidxs; /* maps fds into structure indices */ |
171 | if (!msg) |
139 | static int pollidxmax; |
172 | msg = "(libev) system error"; |
140 | #endif |
|
|
141 | |
173 | |
142 | #if EV_USE_EPOLL |
174 | if (syserr_cb) |
143 | static int epoll_fd = -1; |
175 | syserr_cb (msg); |
|
|
176 | else |
|
|
177 | { |
|
|
178 | perror (msg); |
|
|
179 | abort (); |
|
|
180 | } |
|
|
181 | } |
144 | |
182 | |
145 | static struct epoll_event *events; |
183 | static void *(*alloc)(void *ptr, long size); |
146 | static int eventmax; |
|
|
147 | #endif |
|
|
148 | |
184 | |
149 | #if EV_USE_KQUEUE |
185 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
150 | static int kqueue_fd; |
186 | { |
151 | static struct kevent *kqueue_changes; |
187 | alloc = cb; |
152 | static int kqueue_changemax, kqueue_changecnt; |
188 | } |
153 | static struct kevent *kqueue_events; |
189 | |
154 | static int kqueue_eventmax; |
190 | static void * |
|
|
191 | ev_realloc (void *ptr, long size) |
|
|
192 | { |
|
|
193 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
194 | |
|
|
195 | if (!ptr && size) |
|
|
196 | { |
|
|
197 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
198 | abort (); |
|
|
199 | } |
|
|
200 | |
|
|
201 | return ptr; |
|
|
202 | } |
|
|
203 | |
|
|
204 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
205 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
206 | |
|
|
207 | /*****************************************************************************/ |
|
|
208 | |
|
|
209 | typedef struct |
|
|
210 | { |
|
|
211 | WL head; |
|
|
212 | unsigned char events; |
|
|
213 | unsigned char reify; |
|
|
214 | } ANFD; |
|
|
215 | |
|
|
216 | typedef struct |
|
|
217 | { |
|
|
218 | W w; |
|
|
219 | int events; |
|
|
220 | } ANPENDING; |
|
|
221 | |
|
|
222 | #if EV_MULTIPLICITY |
|
|
223 | |
|
|
224 | struct ev_loop |
|
|
225 | { |
|
|
226 | #define VAR(name,decl) decl; |
|
|
227 | #include "ev_vars.h" |
|
|
228 | #undef VAR |
|
|
229 | }; |
|
|
230 | #include "ev_wrap.h" |
|
|
231 | |
|
|
232 | struct ev_loop default_loop_struct; |
|
|
233 | static struct ev_loop *default_loop; |
|
|
234 | |
|
|
235 | #else |
|
|
236 | |
|
|
237 | #define VAR(name,decl) static decl; |
|
|
238 | #include "ev_vars.h" |
|
|
239 | #undef VAR |
|
|
240 | |
|
|
241 | static int default_loop; |
|
|
242 | |
155 | #endif |
243 | #endif |
156 | |
244 | |
157 | /*****************************************************************************/ |
245 | /*****************************************************************************/ |
158 | |
246 | |
159 | inline ev_tstamp |
247 | inline ev_tstamp |
… | |
… | |
189 | ev_now (EV_P) |
277 | ev_now (EV_P) |
190 | { |
278 | { |
191 | return rt_now; |
279 | return rt_now; |
192 | } |
280 | } |
193 | |
281 | |
194 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
282 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
195 | |
283 | |
196 | #define array_needsize(base,cur,cnt,init) \ |
284 | #define array_needsize(type,base,cur,cnt,init) \ |
197 | if (expect_false ((cnt) > cur)) \ |
285 | if (expect_false ((cnt) > cur)) \ |
198 | { \ |
286 | { \ |
199 | int newcnt = cur; \ |
287 | int newcnt = cur; \ |
200 | do \ |
288 | do \ |
201 | { \ |
289 | { \ |
202 | newcnt = array_roundsize (base, newcnt << 1); \ |
290 | newcnt = array_roundsize (type, newcnt << 1); \ |
203 | } \ |
291 | } \ |
204 | while ((cnt) > newcnt); \ |
292 | while ((cnt) > newcnt); \ |
205 | \ |
293 | \ |
206 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
294 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
207 | init (base + cur, newcnt - cur); \ |
295 | init (base + cur, newcnt - cur); \ |
208 | cur = newcnt; \ |
296 | cur = newcnt; \ |
209 | } |
297 | } |
|
|
298 | |
|
|
299 | #define array_slim(type,stem) \ |
|
|
300 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
301 | { \ |
|
|
302 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
303 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
304 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
305 | } |
|
|
306 | |
|
|
307 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
308 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
309 | #define array_free_microshit(stem) \ |
|
|
310 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
311 | |
|
|
312 | #define array_free(stem, idx) \ |
|
|
313 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
210 | |
314 | |
211 | /*****************************************************************************/ |
315 | /*****************************************************************************/ |
212 | |
|
|
213 | typedef struct |
|
|
214 | { |
|
|
215 | struct ev_watcher_list *head; |
|
|
216 | unsigned char events; |
|
|
217 | unsigned char reify; |
|
|
218 | } ANFD; |
|
|
219 | |
|
|
220 | static ANFD *anfds; |
|
|
221 | static int anfdmax; |
|
|
222 | |
316 | |
223 | static void |
317 | static void |
224 | anfds_init (ANFD *base, int count) |
318 | anfds_init (ANFD *base, int count) |
225 | { |
319 | { |
226 | while (count--) |
320 | while (count--) |
… | |
… | |
231 | |
325 | |
232 | ++base; |
326 | ++base; |
233 | } |
327 | } |
234 | } |
328 | } |
235 | |
329 | |
236 | typedef struct |
330 | void |
237 | { |
|
|
238 | W w; |
|
|
239 | int events; |
|
|
240 | } ANPENDING; |
|
|
241 | |
|
|
242 | static ANPENDING *pendings [NUMPRI]; |
|
|
243 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
244 | |
|
|
245 | static void |
|
|
246 | event (EV_P_ W w, int events) |
331 | ev_feed_event (EV_P_ void *w, int revents) |
247 | { |
332 | { |
|
|
333 | W w_ = (W)w; |
|
|
334 | |
248 | if (w->pending) |
335 | if (w_->pending) |
249 | { |
336 | { |
250 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
337 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
251 | return; |
338 | return; |
252 | } |
339 | } |
253 | |
340 | |
254 | w->pending = ++pendingcnt [ABSPRI (w)]; |
341 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
255 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
342 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
256 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
343 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
257 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
344 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
258 | } |
345 | } |
259 | |
346 | |
260 | static void |
347 | static void |
261 | queue_events (EV_P_ W *events, int eventcnt, int type) |
348 | queue_events (EV_P_ W *events, int eventcnt, int type) |
262 | { |
349 | { |
263 | int i; |
350 | int i; |
264 | |
351 | |
265 | for (i = 0; i < eventcnt; ++i) |
352 | for (i = 0; i < eventcnt; ++i) |
266 | event (EV_A_ events [i], type); |
353 | ev_feed_event (EV_A_ events [i], type); |
267 | } |
354 | } |
268 | |
355 | |
269 | static void |
356 | inline void |
270 | fd_event (EV_P_ int fd, int events) |
357 | fd_event (EV_P_ int fd, int revents) |
271 | { |
358 | { |
272 | ANFD *anfd = anfds + fd; |
359 | ANFD *anfd = anfds + fd; |
273 | struct ev_io *w; |
360 | struct ev_io *w; |
274 | |
361 | |
275 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
362 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
276 | { |
363 | { |
277 | int ev = w->events & events; |
364 | int ev = w->events & revents; |
278 | |
365 | |
279 | if (ev) |
366 | if (ev) |
280 | event (EV_A_ (W)w, ev); |
367 | ev_feed_event (EV_A_ (W)w, ev); |
281 | } |
368 | } |
|
|
369 | } |
|
|
370 | |
|
|
371 | void |
|
|
372 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
373 | { |
|
|
374 | fd_event (EV_A_ fd, revents); |
282 | } |
375 | } |
283 | |
376 | |
284 | /*****************************************************************************/ |
377 | /*****************************************************************************/ |
285 | |
|
|
286 | static int *fdchanges; |
|
|
287 | static int fdchangemax, fdchangecnt; |
|
|
288 | |
378 | |
289 | static void |
379 | static void |
290 | fd_reify (EV_P) |
380 | fd_reify (EV_P) |
291 | { |
381 | { |
292 | int i; |
382 | int i; |
… | |
… | |
302 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
392 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
303 | events |= w->events; |
393 | events |= w->events; |
304 | |
394 | |
305 | anfd->reify = 0; |
395 | anfd->reify = 0; |
306 | |
396 | |
307 | if (anfd->events != events) |
|
|
308 | { |
|
|
309 | method_modify (EV_A_ fd, anfd->events, events); |
397 | method_modify (EV_A_ fd, anfd->events, events); |
310 | anfd->events = events; |
398 | anfd->events = events; |
311 | } |
|
|
312 | } |
399 | } |
313 | |
400 | |
314 | fdchangecnt = 0; |
401 | fdchangecnt = 0; |
315 | } |
402 | } |
316 | |
403 | |
317 | static void |
404 | static void |
318 | fd_change (EV_P_ int fd) |
405 | fd_change (EV_P_ int fd) |
319 | { |
406 | { |
320 | if (anfds [fd].reify || fdchangecnt < 0) |
407 | if (anfds [fd].reify) |
321 | return; |
408 | return; |
322 | |
409 | |
323 | anfds [fd].reify = 1; |
410 | anfds [fd].reify = 1; |
324 | |
411 | |
325 | ++fdchangecnt; |
412 | ++fdchangecnt; |
326 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
413 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
327 | fdchanges [fdchangecnt - 1] = fd; |
414 | fdchanges [fdchangecnt - 1] = fd; |
328 | } |
415 | } |
329 | |
416 | |
330 | static void |
417 | static void |
331 | fd_kill (EV_P_ int fd) |
418 | fd_kill (EV_P_ int fd) |
… | |
… | |
333 | struct ev_io *w; |
420 | struct ev_io *w; |
334 | |
421 | |
335 | while ((w = (struct ev_io *)anfds [fd].head)) |
422 | while ((w = (struct ev_io *)anfds [fd].head)) |
336 | { |
423 | { |
337 | ev_io_stop (EV_A_ w); |
424 | ev_io_stop (EV_A_ w); |
338 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
425 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
339 | } |
426 | } |
|
|
427 | } |
|
|
428 | |
|
|
429 | static int |
|
|
430 | fd_valid (int fd) |
|
|
431 | { |
|
|
432 | #ifdef WIN32 |
|
|
433 | return !!win32_get_osfhandle (fd); |
|
|
434 | #else |
|
|
435 | return fcntl (fd, F_GETFD) != -1; |
|
|
436 | #endif |
340 | } |
437 | } |
341 | |
438 | |
342 | /* called on EBADF to verify fds */ |
439 | /* called on EBADF to verify fds */ |
343 | static void |
440 | static void |
344 | fd_ebadf (EV_P) |
441 | fd_ebadf (EV_P) |
345 | { |
442 | { |
346 | int fd; |
443 | int fd; |
347 | |
444 | |
348 | for (fd = 0; fd < anfdmax; ++fd) |
445 | for (fd = 0; fd < anfdmax; ++fd) |
349 | if (anfds [fd].events) |
446 | if (anfds [fd].events) |
350 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
447 | if (!fd_valid (fd) == -1 && errno == EBADF) |
351 | fd_kill (EV_A_ fd); |
448 | fd_kill (EV_A_ fd); |
352 | } |
449 | } |
353 | |
450 | |
354 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
451 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
355 | static void |
452 | static void |
356 | fd_enomem (EV_P) |
453 | fd_enomem (EV_P) |
357 | { |
454 | { |
358 | int fd = anfdmax; |
455 | int fd; |
359 | |
456 | |
360 | while (fd--) |
457 | for (fd = anfdmax; fd--; ) |
361 | if (anfds [fd].events) |
458 | if (anfds [fd].events) |
362 | { |
459 | { |
363 | close (fd); |
|
|
364 | fd_kill (EV_A_ fd); |
460 | fd_kill (EV_A_ fd); |
365 | return; |
461 | return; |
366 | } |
462 | } |
367 | } |
463 | } |
368 | |
464 | |
|
|
465 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
466 | static void |
|
|
467 | fd_rearm_all (EV_P) |
|
|
468 | { |
|
|
469 | int fd; |
|
|
470 | |
|
|
471 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
472 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
473 | if (anfds [fd].events) |
|
|
474 | { |
|
|
475 | anfds [fd].events = 0; |
|
|
476 | fd_change (EV_A_ fd); |
|
|
477 | } |
|
|
478 | } |
|
|
479 | |
369 | /*****************************************************************************/ |
480 | /*****************************************************************************/ |
370 | |
481 | |
371 | static struct ev_timer **timers; |
|
|
372 | static int timermax, timercnt; |
|
|
373 | |
|
|
374 | static struct ev_periodic **periodics; |
|
|
375 | static int periodicmax, periodiccnt; |
|
|
376 | |
|
|
377 | static void |
482 | static void |
378 | upheap (WT *timers, int k) |
483 | upheap (WT *heap, int k) |
379 | { |
484 | { |
380 | WT w = timers [k]; |
485 | WT w = heap [k]; |
381 | |
486 | |
382 | while (k && timers [k >> 1]->at > w->at) |
487 | while (k && heap [k >> 1]->at > w->at) |
383 | { |
488 | { |
384 | timers [k] = timers [k >> 1]; |
489 | heap [k] = heap [k >> 1]; |
385 | timers [k]->active = k + 1; |
490 | ((W)heap [k])->active = k + 1; |
386 | k >>= 1; |
491 | k >>= 1; |
387 | } |
492 | } |
388 | |
493 | |
389 | timers [k] = w; |
494 | heap [k] = w; |
390 | timers [k]->active = k + 1; |
495 | ((W)heap [k])->active = k + 1; |
391 | |
496 | |
392 | } |
497 | } |
393 | |
498 | |
394 | static void |
499 | static void |
395 | downheap (WT *timers, int N, int k) |
500 | downheap (WT *heap, int N, int k) |
396 | { |
501 | { |
397 | WT w = timers [k]; |
502 | WT w = heap [k]; |
398 | |
503 | |
399 | while (k < (N >> 1)) |
504 | while (k < (N >> 1)) |
400 | { |
505 | { |
401 | int j = k << 1; |
506 | int j = k << 1; |
402 | |
507 | |
403 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
508 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
404 | ++j; |
509 | ++j; |
405 | |
510 | |
406 | if (w->at <= timers [j]->at) |
511 | if (w->at <= heap [j]->at) |
407 | break; |
512 | break; |
408 | |
513 | |
409 | timers [k] = timers [j]; |
514 | heap [k] = heap [j]; |
410 | timers [k]->active = k + 1; |
515 | ((W)heap [k])->active = k + 1; |
411 | k = j; |
516 | k = j; |
412 | } |
517 | } |
413 | |
518 | |
414 | timers [k] = w; |
519 | heap [k] = w; |
415 | timers [k]->active = k + 1; |
520 | ((W)heap [k])->active = k + 1; |
|
|
521 | } |
|
|
522 | |
|
|
523 | inline void |
|
|
524 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
|
|
525 | { |
|
|
526 | ev_tstamp old_at = heap [k]->at; |
|
|
527 | heap [k]->at = at; |
|
|
528 | |
|
|
529 | if (old_at < at) |
|
|
530 | downheap (heap, N, k); |
|
|
531 | else |
|
|
532 | upheap (heap, k); |
416 | } |
533 | } |
417 | |
534 | |
418 | /*****************************************************************************/ |
535 | /*****************************************************************************/ |
419 | |
536 | |
420 | typedef struct |
537 | typedef struct |
421 | { |
538 | { |
422 | struct ev_watcher_list *head; |
539 | WL head; |
423 | sig_atomic_t volatile gotsig; |
540 | sig_atomic_t volatile gotsig; |
424 | } ANSIG; |
541 | } ANSIG; |
425 | |
542 | |
426 | static ANSIG *signals; |
543 | static ANSIG *signals; |
427 | static int signalmax; |
544 | static int signalmax; |
… | |
… | |
443 | } |
560 | } |
444 | |
561 | |
445 | static void |
562 | static void |
446 | sighandler (int signum) |
563 | sighandler (int signum) |
447 | { |
564 | { |
|
|
565 | #if WIN32 |
|
|
566 | signal (signum, sighandler); |
|
|
567 | #endif |
|
|
568 | |
448 | signals [signum - 1].gotsig = 1; |
569 | signals [signum - 1].gotsig = 1; |
449 | |
570 | |
450 | if (!gotsig) |
571 | if (!gotsig) |
451 | { |
572 | { |
452 | int old_errno = errno; |
573 | int old_errno = errno; |
453 | gotsig = 1; |
574 | gotsig = 1; |
|
|
575 | #ifdef WIN32 |
|
|
576 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
577 | #else |
454 | write (sigpipe [1], &signum, 1); |
578 | write (sigpipe [1], &signum, 1); |
|
|
579 | #endif |
455 | errno = old_errno; |
580 | errno = old_errno; |
456 | } |
581 | } |
457 | } |
582 | } |
458 | |
583 | |
|
|
584 | void |
|
|
585 | ev_feed_signal_event (EV_P_ int signum) |
|
|
586 | { |
|
|
587 | WL w; |
|
|
588 | |
|
|
589 | #if EV_MULTIPLICITY |
|
|
590 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
591 | #endif |
|
|
592 | |
|
|
593 | --signum; |
|
|
594 | |
|
|
595 | if (signum < 0 || signum >= signalmax) |
|
|
596 | return; |
|
|
597 | |
|
|
598 | signals [signum].gotsig = 0; |
|
|
599 | |
|
|
600 | for (w = signals [signum].head; w; w = w->next) |
|
|
601 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
602 | } |
|
|
603 | |
459 | static void |
604 | static void |
460 | sigcb (EV_P_ struct ev_io *iow, int revents) |
605 | sigcb (EV_P_ struct ev_io *iow, int revents) |
461 | { |
606 | { |
462 | struct ev_watcher_list *w; |
|
|
463 | int signum; |
607 | int signum; |
464 | |
608 | |
|
|
609 | #ifdef WIN32 |
|
|
610 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
611 | #else |
465 | read (sigpipe [0], &revents, 1); |
612 | read (sigpipe [0], &revents, 1); |
|
|
613 | #endif |
466 | gotsig = 0; |
614 | gotsig = 0; |
467 | |
615 | |
468 | for (signum = signalmax; signum--; ) |
616 | for (signum = signalmax; signum--; ) |
469 | if (signals [signum].gotsig) |
617 | if (signals [signum].gotsig) |
470 | { |
618 | ev_feed_signal_event (EV_A_ signum + 1); |
471 | signals [signum].gotsig = 0; |
|
|
472 | |
|
|
473 | for (w = signals [signum].head; w; w = w->next) |
|
|
474 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
475 | } |
|
|
476 | } |
619 | } |
477 | |
620 | |
478 | static void |
621 | static void |
479 | siginit (EV_P) |
622 | siginit (EV_P) |
480 | { |
623 | { |
… | |
… | |
486 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
629 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
487 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
630 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
488 | #endif |
631 | #endif |
489 | |
632 | |
490 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
633 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
491 | ev_io_start (&sigev); |
634 | ev_io_start (EV_A_ &sigev); |
|
|
635 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
492 | } |
636 | } |
493 | |
637 | |
494 | /*****************************************************************************/ |
638 | /*****************************************************************************/ |
495 | |
639 | |
496 | static struct ev_idle **idles; |
|
|
497 | static int idlemax, idlecnt; |
|
|
498 | |
|
|
499 | static struct ev_prepare **prepares; |
|
|
500 | static int preparemax, preparecnt; |
|
|
501 | |
|
|
502 | static struct ev_check **checks; |
|
|
503 | static int checkmax, checkcnt; |
|
|
504 | |
|
|
505 | /*****************************************************************************/ |
|
|
506 | |
|
|
507 | static struct ev_child *childs [PID_HASHSIZE]; |
640 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
641 | |
|
|
642 | #ifndef WIN32 |
|
|
643 | |
508 | static struct ev_signal childev; |
644 | static struct ev_signal childev; |
509 | |
|
|
510 | #ifndef WIN32 |
|
|
511 | |
645 | |
512 | #ifndef WCONTINUED |
646 | #ifndef WCONTINUED |
513 | # define WCONTINUED 0 |
647 | # define WCONTINUED 0 |
514 | #endif |
648 | #endif |
515 | |
649 | |
… | |
… | |
519 | struct ev_child *w; |
653 | struct ev_child *w; |
520 | |
654 | |
521 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
655 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
522 | if (w->pid == pid || !w->pid) |
656 | if (w->pid == pid || !w->pid) |
523 | { |
657 | { |
524 | w->priority = sw->priority; /* need to do it *now* */ |
658 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
525 | w->rpid = pid; |
659 | w->rpid = pid; |
526 | w->rstatus = status; |
660 | w->rstatus = status; |
527 | event (EV_A_ (W)w, EV_CHILD); |
661 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
528 | } |
662 | } |
529 | } |
663 | } |
530 | |
664 | |
531 | static void |
665 | static void |
532 | childcb (EV_P_ struct ev_signal *sw, int revents) |
666 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
534 | int pid, status; |
668 | int pid, status; |
535 | |
669 | |
536 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
670 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
537 | { |
671 | { |
538 | /* make sure we are called again until all childs have been reaped */ |
672 | /* make sure we are called again until all childs have been reaped */ |
539 | event (EV_A_ (W)sw, EV_SIGNAL); |
673 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
540 | |
674 | |
541 | child_reap (EV_A_ sw, pid, pid, status); |
675 | child_reap (EV_A_ sw, pid, pid, status); |
542 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
676 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
543 | } |
677 | } |
544 | } |
678 | } |
… | |
… | |
551 | # include "ev_kqueue.c" |
685 | # include "ev_kqueue.c" |
552 | #endif |
686 | #endif |
553 | #if EV_USE_EPOLL |
687 | #if EV_USE_EPOLL |
554 | # include "ev_epoll.c" |
688 | # include "ev_epoll.c" |
555 | #endif |
689 | #endif |
556 | #if EV_USEV_POLL |
690 | #if EV_USE_POLL |
557 | # include "ev_poll.c" |
691 | # include "ev_poll.c" |
558 | #endif |
692 | #endif |
559 | #if EV_USE_SELECT |
693 | #if EV_USE_SELECT |
560 | # include "ev_select.c" |
694 | # include "ev_select.c" |
561 | #endif |
695 | #endif |
… | |
… | |
588 | ev_method (EV_P) |
722 | ev_method (EV_P) |
589 | { |
723 | { |
590 | return method; |
724 | return method; |
591 | } |
725 | } |
592 | |
726 | |
593 | int |
727 | static void |
594 | ev_init (EV_P_ int methods) |
728 | loop_init (EV_P_ int methods) |
595 | { |
729 | { |
596 | if (!method) |
730 | if (!method) |
597 | { |
731 | { |
598 | #if EV_USE_MONOTONIC |
732 | #if EV_USE_MONOTONIC |
599 | { |
733 | { |
… | |
… | |
604 | #endif |
738 | #endif |
605 | |
739 | |
606 | rt_now = ev_time (); |
740 | rt_now = ev_time (); |
607 | mn_now = get_clock (); |
741 | mn_now = get_clock (); |
608 | now_floor = mn_now; |
742 | now_floor = mn_now; |
609 | diff = rt_now - mn_now; |
743 | rtmn_diff = rt_now - mn_now; |
610 | |
|
|
611 | if (pipe (sigpipe)) |
|
|
612 | return 0; |
|
|
613 | |
744 | |
614 | if (methods == EVMETHOD_AUTO) |
745 | if (methods == EVMETHOD_AUTO) |
615 | if (!enable_secure () && getenv ("LIBmethodS")) |
746 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
616 | methods = atoi (getenv ("LIBmethodS")); |
747 | methods = atoi (getenv ("LIBEV_METHODS")); |
617 | else |
748 | else |
618 | methods = EVMETHOD_ANY; |
749 | methods = EVMETHOD_ANY; |
619 | |
750 | |
620 | method = 0; |
751 | method = 0; |
|
|
752 | #if EV_USE_WIN32 |
|
|
753 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
|
|
754 | #endif |
621 | #if EV_USE_KQUEUE |
755 | #if EV_USE_KQUEUE |
622 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
756 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
623 | #endif |
757 | #endif |
624 | #if EV_USE_EPOLL |
758 | #if EV_USE_EPOLL |
625 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
759 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
626 | #endif |
760 | #endif |
627 | #if EV_USEV_POLL |
761 | #if EV_USE_POLL |
628 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
762 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
629 | #endif |
763 | #endif |
630 | #if EV_USE_SELECT |
764 | #if EV_USE_SELECT |
631 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
765 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
632 | #endif |
766 | #endif |
633 | |
767 | |
|
|
768 | ev_init (&sigev, sigcb); |
|
|
769 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
770 | } |
|
|
771 | } |
|
|
772 | |
|
|
773 | void |
|
|
774 | loop_destroy (EV_P) |
|
|
775 | { |
|
|
776 | int i; |
|
|
777 | |
|
|
778 | #if EV_USE_WIN32 |
|
|
779 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
|
|
780 | #endif |
|
|
781 | #if EV_USE_KQUEUE |
|
|
782 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
783 | #endif |
|
|
784 | #if EV_USE_EPOLL |
|
|
785 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
786 | #endif |
|
|
787 | #if EV_USE_POLL |
|
|
788 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
789 | #endif |
|
|
790 | #if EV_USE_SELECT |
|
|
791 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
792 | #endif |
|
|
793 | |
|
|
794 | for (i = NUMPRI; i--; ) |
|
|
795 | array_free (pending, [i]); |
|
|
796 | |
|
|
797 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
798 | array_free_microshit (fdchange); |
|
|
799 | array_free_microshit (timer); |
|
|
800 | array_free_microshit (periodic); |
|
|
801 | array_free_microshit (idle); |
|
|
802 | array_free_microshit (prepare); |
|
|
803 | array_free_microshit (check); |
|
|
804 | |
|
|
805 | method = 0; |
|
|
806 | } |
|
|
807 | |
|
|
808 | static void |
|
|
809 | loop_fork (EV_P) |
|
|
810 | { |
|
|
811 | #if EV_USE_EPOLL |
|
|
812 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
813 | #endif |
|
|
814 | #if EV_USE_KQUEUE |
|
|
815 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
816 | #endif |
|
|
817 | |
|
|
818 | if (ev_is_active (&sigev)) |
|
|
819 | { |
|
|
820 | /* default loop */ |
|
|
821 | |
|
|
822 | ev_ref (EV_A); |
|
|
823 | ev_io_stop (EV_A_ &sigev); |
|
|
824 | close (sigpipe [0]); |
|
|
825 | close (sigpipe [1]); |
|
|
826 | |
|
|
827 | while (pipe (sigpipe)) |
|
|
828 | syserr ("(libev) error creating pipe"); |
|
|
829 | |
|
|
830 | siginit (EV_A); |
|
|
831 | } |
|
|
832 | |
|
|
833 | postfork = 0; |
|
|
834 | } |
|
|
835 | |
|
|
836 | #if EV_MULTIPLICITY |
|
|
837 | struct ev_loop * |
|
|
838 | ev_loop_new (int methods) |
|
|
839 | { |
|
|
840 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
841 | |
|
|
842 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
843 | |
|
|
844 | loop_init (EV_A_ methods); |
|
|
845 | |
|
|
846 | if (ev_method (EV_A)) |
|
|
847 | return loop; |
|
|
848 | |
|
|
849 | return 0; |
|
|
850 | } |
|
|
851 | |
|
|
852 | void |
|
|
853 | ev_loop_destroy (EV_P) |
|
|
854 | { |
|
|
855 | loop_destroy (EV_A); |
|
|
856 | ev_free (loop); |
|
|
857 | } |
|
|
858 | |
|
|
859 | void |
|
|
860 | ev_loop_fork (EV_P) |
|
|
861 | { |
|
|
862 | postfork = 1; |
|
|
863 | } |
|
|
864 | |
|
|
865 | #endif |
|
|
866 | |
|
|
867 | #if EV_MULTIPLICITY |
|
|
868 | struct ev_loop * |
|
|
869 | #else |
|
|
870 | int |
|
|
871 | #endif |
|
|
872 | ev_default_loop (int methods) |
|
|
873 | { |
|
|
874 | if (sigpipe [0] == sigpipe [1]) |
|
|
875 | if (pipe (sigpipe)) |
|
|
876 | return 0; |
|
|
877 | |
|
|
878 | if (!default_loop) |
|
|
879 | { |
|
|
880 | #if EV_MULTIPLICITY |
|
|
881 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
882 | #else |
|
|
883 | default_loop = 1; |
|
|
884 | #endif |
|
|
885 | |
|
|
886 | loop_init (EV_A_ methods); |
|
|
887 | |
634 | if (method) |
888 | if (ev_method (EV_A)) |
635 | { |
889 | { |
636 | ev_watcher_init (&sigev, sigcb); |
|
|
637 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
638 | siginit (EV_A); |
890 | siginit (EV_A); |
639 | |
891 | |
640 | #ifndef WIN32 |
892 | #ifndef WIN32 |
641 | ev_signal_init (&childev, childcb, SIGCHLD); |
893 | ev_signal_init (&childev, childcb, SIGCHLD); |
642 | ev_set_priority (&childev, EV_MAXPRI); |
894 | ev_set_priority (&childev, EV_MAXPRI); |
643 | ev_signal_start (EV_A_ &childev); |
895 | ev_signal_start (EV_A_ &childev); |
|
|
896 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
644 | #endif |
897 | #endif |
645 | } |
898 | } |
|
|
899 | else |
|
|
900 | default_loop = 0; |
646 | } |
901 | } |
647 | |
902 | |
648 | return method; |
903 | return default_loop; |
|
|
904 | } |
|
|
905 | |
|
|
906 | void |
|
|
907 | ev_default_destroy (void) |
|
|
908 | { |
|
|
909 | #if EV_MULTIPLICITY |
|
|
910 | struct ev_loop *loop = default_loop; |
|
|
911 | #endif |
|
|
912 | |
|
|
913 | #ifndef WIN32 |
|
|
914 | ev_ref (EV_A); /* child watcher */ |
|
|
915 | ev_signal_stop (EV_A_ &childev); |
|
|
916 | #endif |
|
|
917 | |
|
|
918 | ev_ref (EV_A); /* signal watcher */ |
|
|
919 | ev_io_stop (EV_A_ &sigev); |
|
|
920 | |
|
|
921 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
922 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
923 | |
|
|
924 | loop_destroy (EV_A); |
|
|
925 | } |
|
|
926 | |
|
|
927 | void |
|
|
928 | ev_default_fork (void) |
|
|
929 | { |
|
|
930 | #if EV_MULTIPLICITY |
|
|
931 | struct ev_loop *loop = default_loop; |
|
|
932 | #endif |
|
|
933 | |
|
|
934 | if (method) |
|
|
935 | postfork = 1; |
649 | } |
936 | } |
650 | |
937 | |
651 | /*****************************************************************************/ |
938 | /*****************************************************************************/ |
652 | |
939 | |
653 | void |
940 | static int |
654 | ev_fork_prepare (void) |
941 | any_pending (EV_P) |
655 | { |
942 | { |
656 | /* nop */ |
943 | int pri; |
657 | } |
|
|
658 | |
944 | |
659 | void |
945 | for (pri = NUMPRI; pri--; ) |
660 | ev_fork_parent (void) |
946 | if (pendingcnt [pri]) |
661 | { |
947 | return 1; |
662 | /* nop */ |
|
|
663 | } |
|
|
664 | |
948 | |
665 | void |
949 | return 0; |
666 | ev_fork_child (void) |
|
|
667 | { |
|
|
668 | #if EV_USE_EPOLL |
|
|
669 | if (method == EVMETHOD_EPOLL) |
|
|
670 | epoll_postfork_child (); |
|
|
671 | #endif |
|
|
672 | |
|
|
673 | ev_io_stop (&sigev); |
|
|
674 | close (sigpipe [0]); |
|
|
675 | close (sigpipe [1]); |
|
|
676 | pipe (sigpipe); |
|
|
677 | siginit (); |
|
|
678 | } |
950 | } |
679 | |
|
|
680 | /*****************************************************************************/ |
|
|
681 | |
951 | |
682 | static void |
952 | static void |
683 | call_pending (EV_P) |
953 | call_pending (EV_P) |
684 | { |
954 | { |
685 | int pri; |
955 | int pri; |
… | |
… | |
690 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
960 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
691 | |
961 | |
692 | if (p->w) |
962 | if (p->w) |
693 | { |
963 | { |
694 | p->w->pending = 0; |
964 | p->w->pending = 0; |
695 | p->w->cb (EV_A_ p->w, p->events); |
965 | EV_CB_INVOKE (p->w, p->events); |
696 | } |
966 | } |
697 | } |
967 | } |
698 | } |
968 | } |
699 | |
969 | |
700 | static void |
970 | static void |
701 | timers_reify (EV_P) |
971 | timers_reify (EV_P) |
702 | { |
972 | { |
703 | while (timercnt && timers [0]->at <= mn_now) |
973 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
704 | { |
974 | { |
705 | struct ev_timer *w = timers [0]; |
975 | struct ev_timer *w = timers [0]; |
|
|
976 | |
|
|
977 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
706 | |
978 | |
707 | /* first reschedule or stop timer */ |
979 | /* first reschedule or stop timer */ |
708 | if (w->repeat) |
980 | if (w->repeat) |
709 | { |
981 | { |
710 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
982 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
711 | w->at = mn_now + w->repeat; |
983 | ((WT)w)->at = mn_now + w->repeat; |
712 | downheap ((WT *)timers, timercnt, 0); |
984 | downheap ((WT *)timers, timercnt, 0); |
713 | } |
985 | } |
714 | else |
986 | else |
715 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
987 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
716 | |
988 | |
717 | event ((W)w, EV_TIMEOUT); |
989 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
718 | } |
990 | } |
719 | } |
991 | } |
720 | |
992 | |
721 | static void |
993 | static void |
722 | periodics_reify (EV_P) |
994 | periodics_reify (EV_P) |
723 | { |
995 | { |
724 | while (periodiccnt && periodics [0]->at <= rt_now) |
996 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
725 | { |
997 | { |
726 | struct ev_periodic *w = periodics [0]; |
998 | struct ev_periodic *w = periodics [0]; |
727 | |
999 | |
|
|
1000 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1001 | |
728 | /* first reschedule or stop timer */ |
1002 | /* first reschedule or stop timer */ |
729 | if (w->interval) |
1003 | if (w->reschedule_cb) |
730 | { |
1004 | { |
|
|
1005 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
|
|
1006 | |
|
|
1007 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
|
|
1008 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1009 | } |
|
|
1010 | else if (w->interval) |
|
|
1011 | { |
731 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1012 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
732 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1013 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
733 | downheap ((WT *)periodics, periodiccnt, 0); |
1014 | downheap ((WT *)periodics, periodiccnt, 0); |
734 | } |
1015 | } |
735 | else |
1016 | else |
736 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1017 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
737 | |
1018 | |
738 | event (EV_A_ (W)w, EV_PERIODIC); |
1019 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
739 | } |
1020 | } |
740 | } |
1021 | } |
741 | |
1022 | |
742 | static void |
1023 | static void |
743 | periodics_reschedule (EV_P_ ev_tstamp diff) |
1024 | periodics_reschedule (EV_P) |
744 | { |
1025 | { |
745 | int i; |
1026 | int i; |
746 | |
1027 | |
747 | /* adjust periodics after time jump */ |
1028 | /* adjust periodics after time jump */ |
748 | for (i = 0; i < periodiccnt; ++i) |
1029 | for (i = 0; i < periodiccnt; ++i) |
749 | { |
1030 | { |
750 | struct ev_periodic *w = periodics [i]; |
1031 | struct ev_periodic *w = periodics [i]; |
751 | |
1032 | |
|
|
1033 | if (w->reschedule_cb) |
|
|
1034 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
752 | if (w->interval) |
1035 | else if (w->interval) |
753 | { |
|
|
754 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1036 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
755 | |
|
|
756 | if (fabs (diff) >= 1e-4) |
|
|
757 | { |
|
|
758 | ev_periodic_stop (EV_A_ w); |
|
|
759 | ev_periodic_start (EV_A_ w); |
|
|
760 | |
|
|
761 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
762 | } |
|
|
763 | } |
|
|
764 | } |
1037 | } |
|
|
1038 | |
|
|
1039 | /* now rebuild the heap */ |
|
|
1040 | for (i = periodiccnt >> 1; i--; ) |
|
|
1041 | downheap ((WT *)periodics, periodiccnt, i); |
765 | } |
1042 | } |
766 | |
1043 | |
767 | inline int |
1044 | inline int |
768 | time_update_monotonic (EV_P) |
1045 | time_update_monotonic (EV_P) |
769 | { |
1046 | { |
770 | mn_now = get_clock (); |
1047 | mn_now = get_clock (); |
771 | |
1048 | |
772 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1049 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
773 | { |
1050 | { |
774 | rt_now = mn_now + diff; |
1051 | rt_now = rtmn_diff + mn_now; |
775 | return 0; |
1052 | return 0; |
776 | } |
1053 | } |
777 | else |
1054 | else |
778 | { |
1055 | { |
779 | now_floor = mn_now; |
1056 | now_floor = mn_now; |
… | |
… | |
790 | #if EV_USE_MONOTONIC |
1067 | #if EV_USE_MONOTONIC |
791 | if (expect_true (have_monotonic)) |
1068 | if (expect_true (have_monotonic)) |
792 | { |
1069 | { |
793 | if (time_update_monotonic (EV_A)) |
1070 | if (time_update_monotonic (EV_A)) |
794 | { |
1071 | { |
795 | ev_tstamp odiff = diff; |
1072 | ev_tstamp odiff = rtmn_diff; |
796 | |
1073 | |
797 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1074 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
798 | { |
1075 | { |
799 | diff = rt_now - mn_now; |
1076 | rtmn_diff = rt_now - mn_now; |
800 | |
1077 | |
801 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1078 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
802 | return; /* all is well */ |
1079 | return; /* all is well */ |
803 | |
1080 | |
804 | rt_now = ev_time (); |
1081 | rt_now = ev_time (); |
805 | mn_now = get_clock (); |
1082 | mn_now = get_clock (); |
806 | now_floor = mn_now; |
1083 | now_floor = mn_now; |
807 | } |
1084 | } |
808 | |
1085 | |
809 | periodics_reschedule (EV_A_ diff - odiff); |
1086 | periodics_reschedule (EV_A); |
810 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1087 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1088 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
811 | } |
1089 | } |
812 | } |
1090 | } |
813 | else |
1091 | else |
814 | #endif |
1092 | #endif |
815 | { |
1093 | { |
816 | rt_now = ev_time (); |
1094 | rt_now = ev_time (); |
817 | |
1095 | |
818 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1096 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
819 | { |
1097 | { |
820 | periodics_reschedule (EV_A_ rt_now - mn_now); |
1098 | periodics_reschedule (EV_A); |
821 | |
1099 | |
822 | /* adjust timers. this is easy, as the offset is the same for all */ |
1100 | /* adjust timers. this is easy, as the offset is the same for all */ |
823 | for (i = 0; i < timercnt; ++i) |
1101 | for (i = 0; i < timercnt; ++i) |
824 | timers [i]->at += diff; |
1102 | ((WT)timers [i])->at += rt_now - mn_now; |
825 | } |
1103 | } |
826 | |
1104 | |
827 | mn_now = rt_now; |
1105 | mn_now = rt_now; |
828 | } |
1106 | } |
829 | } |
1107 | } |
… | |
… | |
855 | { |
1133 | { |
856 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1134 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
857 | call_pending (EV_A); |
1135 | call_pending (EV_A); |
858 | } |
1136 | } |
859 | |
1137 | |
|
|
1138 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1139 | if (expect_false (postfork)) |
|
|
1140 | loop_fork (EV_A); |
|
|
1141 | |
860 | /* update fd-related kernel structures */ |
1142 | /* update fd-related kernel structures */ |
861 | fd_reify (EV_A); |
1143 | fd_reify (EV_A); |
862 | |
1144 | |
863 | /* calculate blocking time */ |
1145 | /* calculate blocking time */ |
864 | |
1146 | |
865 | /* we only need this for !monotonic clockor timers, but as we basically |
1147 | /* we only need this for !monotonic clock or timers, but as we basically |
866 | always have timers, we just calculate it always */ |
1148 | always have timers, we just calculate it always */ |
867 | #if EV_USE_MONOTONIC |
1149 | #if EV_USE_MONOTONIC |
868 | if (expect_true (have_monotonic)) |
1150 | if (expect_true (have_monotonic)) |
869 | time_update_monotonic (EV_A); |
1151 | time_update_monotonic (EV_A); |
870 | else |
1152 | else |
… | |
… | |
880 | { |
1162 | { |
881 | block = MAX_BLOCKTIME; |
1163 | block = MAX_BLOCKTIME; |
882 | |
1164 | |
883 | if (timercnt) |
1165 | if (timercnt) |
884 | { |
1166 | { |
885 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1167 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
886 | if (block > to) block = to; |
1168 | if (block > to) block = to; |
887 | } |
1169 | } |
888 | |
1170 | |
889 | if (periodiccnt) |
1171 | if (periodiccnt) |
890 | { |
1172 | { |
891 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1173 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
892 | if (block > to) block = to; |
1174 | if (block > to) block = to; |
893 | } |
1175 | } |
894 | |
1176 | |
895 | if (block < 0.) block = 0.; |
1177 | if (block < 0.) block = 0.; |
896 | } |
1178 | } |
… | |
… | |
903 | /* queue pending timers and reschedule them */ |
1185 | /* queue pending timers and reschedule them */ |
904 | timers_reify (EV_A); /* relative timers called last */ |
1186 | timers_reify (EV_A); /* relative timers called last */ |
905 | periodics_reify (EV_A); /* absolute timers called first */ |
1187 | periodics_reify (EV_A); /* absolute timers called first */ |
906 | |
1188 | |
907 | /* queue idle watchers unless io or timers are pending */ |
1189 | /* queue idle watchers unless io or timers are pending */ |
908 | if (!pendingcnt) |
1190 | if (idlecnt && !any_pending (EV_A)) |
909 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1191 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
910 | |
1192 | |
911 | /* queue check watchers, to be executed first */ |
1193 | /* queue check watchers, to be executed first */ |
912 | if (checkcnt) |
1194 | if (checkcnt) |
913 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1195 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
914 | |
1196 | |
915 | call_pending (EV_A); |
1197 | call_pending (EV_A); |
916 | printf ("activecnt %d\n", activecnt);//D |
|
|
917 | } |
1198 | } |
918 | while (activecnt && !loop_done); |
1199 | while (activecnt && !loop_done); |
919 | |
1200 | |
920 | if (loop_done != 2) |
1201 | if (loop_done != 2) |
921 | loop_done = 0; |
1202 | loop_done = 0; |
… | |
… | |
989 | return; |
1270 | return; |
990 | |
1271 | |
991 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1272 | assert (("ev_io_start called with negative fd", fd >= 0)); |
992 | |
1273 | |
993 | ev_start (EV_A_ (W)w, 1); |
1274 | ev_start (EV_A_ (W)w, 1); |
994 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1275 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
995 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1276 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
996 | |
1277 | |
997 | fd_change (EV_A_ fd); |
1278 | fd_change (EV_A_ fd); |
998 | } |
1279 | } |
999 | |
1280 | |
… | |
… | |
1014 | ev_timer_start (EV_P_ struct ev_timer *w) |
1295 | ev_timer_start (EV_P_ struct ev_timer *w) |
1015 | { |
1296 | { |
1016 | if (ev_is_active (w)) |
1297 | if (ev_is_active (w)) |
1017 | return; |
1298 | return; |
1018 | |
1299 | |
1019 | w->at += mn_now; |
1300 | ((WT)w)->at += mn_now; |
1020 | |
1301 | |
1021 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1302 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1022 | |
1303 | |
1023 | ev_start (EV_A_ (W)w, ++timercnt); |
1304 | ev_start (EV_A_ (W)w, ++timercnt); |
1024 | array_needsize (timers, timermax, timercnt, ); |
1305 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1025 | timers [timercnt - 1] = w; |
1306 | timers [timercnt - 1] = w; |
1026 | upheap ((WT *)timers, timercnt - 1); |
1307 | upheap ((WT *)timers, timercnt - 1); |
|
|
1308 | |
|
|
1309 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1027 | } |
1310 | } |
1028 | |
1311 | |
1029 | void |
1312 | void |
1030 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1313 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1031 | { |
1314 | { |
1032 | ev_clear_pending (EV_A_ (W)w); |
1315 | ev_clear_pending (EV_A_ (W)w); |
1033 | if (!ev_is_active (w)) |
1316 | if (!ev_is_active (w)) |
1034 | return; |
1317 | return; |
1035 | |
1318 | |
|
|
1319 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1320 | |
1036 | if (w->active < timercnt--) |
1321 | if (((W)w)->active < timercnt--) |
1037 | { |
1322 | { |
1038 | timers [w->active - 1] = timers [timercnt]; |
1323 | timers [((W)w)->active - 1] = timers [timercnt]; |
1039 | downheap ((WT *)timers, timercnt, w->active - 1); |
1324 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1040 | } |
1325 | } |
1041 | |
1326 | |
1042 | w->at = w->repeat; |
1327 | ((WT)w)->at = w->repeat; |
1043 | |
1328 | |
1044 | ev_stop (EV_A_ (W)w); |
1329 | ev_stop (EV_A_ (W)w); |
1045 | } |
1330 | } |
1046 | |
1331 | |
1047 | void |
1332 | void |
1048 | ev_timer_again (EV_P_ struct ev_timer *w) |
1333 | ev_timer_again (EV_P_ struct ev_timer *w) |
1049 | { |
1334 | { |
1050 | if (ev_is_active (w)) |
1335 | if (ev_is_active (w)) |
1051 | { |
1336 | { |
1052 | if (w->repeat) |
1337 | if (w->repeat) |
1053 | { |
|
|
1054 | w->at = mn_now + w->repeat; |
|
|
1055 | downheap ((WT *)timers, timercnt, w->active - 1); |
1338 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
1056 | } |
|
|
1057 | else |
1339 | else |
1058 | ev_timer_stop (EV_A_ w); |
1340 | ev_timer_stop (EV_A_ w); |
1059 | } |
1341 | } |
1060 | else if (w->repeat) |
1342 | else if (w->repeat) |
1061 | ev_timer_start (EV_A_ w); |
1343 | ev_timer_start (EV_A_ w); |
… | |
… | |
1065 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1347 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1066 | { |
1348 | { |
1067 | if (ev_is_active (w)) |
1349 | if (ev_is_active (w)) |
1068 | return; |
1350 | return; |
1069 | |
1351 | |
|
|
1352 | if (w->reschedule_cb) |
|
|
1353 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
|
|
1354 | else if (w->interval) |
|
|
1355 | { |
1070 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1356 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1071 | |
|
|
1072 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1357 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1073 | if (w->interval) |
|
|
1074 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1358 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1359 | } |
1075 | |
1360 | |
1076 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1361 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1077 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1362 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1078 | periodics [periodiccnt - 1] = w; |
1363 | periodics [periodiccnt - 1] = w; |
1079 | upheap ((WT *)periodics, periodiccnt - 1); |
1364 | upheap ((WT *)periodics, periodiccnt - 1); |
|
|
1365 | |
|
|
1366 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1080 | } |
1367 | } |
1081 | |
1368 | |
1082 | void |
1369 | void |
1083 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1370 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1084 | { |
1371 | { |
1085 | ev_clear_pending (EV_A_ (W)w); |
1372 | ev_clear_pending (EV_A_ (W)w); |
1086 | if (!ev_is_active (w)) |
1373 | if (!ev_is_active (w)) |
1087 | return; |
1374 | return; |
1088 | |
1375 | |
|
|
1376 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1377 | |
1089 | if (w->active < periodiccnt--) |
1378 | if (((W)w)->active < periodiccnt--) |
1090 | { |
1379 | { |
1091 | periodics [w->active - 1] = periodics [periodiccnt]; |
1380 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1092 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1381 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1093 | } |
1382 | } |
1094 | |
1383 | |
|
|
1384 | ev_stop (EV_A_ (W)w); |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | void |
|
|
1388 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1389 | { |
|
|
1390 | /* TODO: use adjustheap and recalculation */ |
|
|
1391 | ev_periodic_stop (EV_A_ w); |
|
|
1392 | ev_periodic_start (EV_A_ w); |
|
|
1393 | } |
|
|
1394 | |
|
|
1395 | void |
|
|
1396 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1397 | { |
|
|
1398 | if (ev_is_active (w)) |
|
|
1399 | return; |
|
|
1400 | |
|
|
1401 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1402 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1403 | idles [idlecnt - 1] = w; |
|
|
1404 | } |
|
|
1405 | |
|
|
1406 | void |
|
|
1407 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1408 | { |
|
|
1409 | ev_clear_pending (EV_A_ (W)w); |
|
|
1410 | if (ev_is_active (w)) |
|
|
1411 | return; |
|
|
1412 | |
|
|
1413 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1414 | ev_stop (EV_A_ (W)w); |
|
|
1415 | } |
|
|
1416 | |
|
|
1417 | void |
|
|
1418 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1419 | { |
|
|
1420 | if (ev_is_active (w)) |
|
|
1421 | return; |
|
|
1422 | |
|
|
1423 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1424 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1425 | prepares [preparecnt - 1] = w; |
|
|
1426 | } |
|
|
1427 | |
|
|
1428 | void |
|
|
1429 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1430 | { |
|
|
1431 | ev_clear_pending (EV_A_ (W)w); |
|
|
1432 | if (ev_is_active (w)) |
|
|
1433 | return; |
|
|
1434 | |
|
|
1435 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1436 | ev_stop (EV_A_ (W)w); |
|
|
1437 | } |
|
|
1438 | |
|
|
1439 | void |
|
|
1440 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1441 | { |
|
|
1442 | if (ev_is_active (w)) |
|
|
1443 | return; |
|
|
1444 | |
|
|
1445 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1446 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1447 | checks [checkcnt - 1] = w; |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | void |
|
|
1451 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1452 | { |
|
|
1453 | ev_clear_pending (EV_A_ (W)w); |
|
|
1454 | if (ev_is_active (w)) |
|
|
1455 | return; |
|
|
1456 | |
|
|
1457 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1095 | ev_stop (EV_A_ (W)w); |
1458 | ev_stop (EV_A_ (W)w); |
1096 | } |
1459 | } |
1097 | |
1460 | |
1098 | #ifndef SA_RESTART |
1461 | #ifndef SA_RESTART |
1099 | # define SA_RESTART 0 |
1462 | # define SA_RESTART 0 |
1100 | #endif |
1463 | #endif |
1101 | |
1464 | |
1102 | void |
1465 | void |
1103 | ev_signal_start (EV_P_ struct ev_signal *w) |
1466 | ev_signal_start (EV_P_ struct ev_signal *w) |
1104 | { |
1467 | { |
|
|
1468 | #if EV_MULTIPLICITY |
|
|
1469 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1470 | #endif |
1105 | if (ev_is_active (w)) |
1471 | if (ev_is_active (w)) |
1106 | return; |
1472 | return; |
1107 | |
1473 | |
1108 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1474 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1109 | |
1475 | |
1110 | ev_start (EV_A_ (W)w, 1); |
1476 | ev_start (EV_A_ (W)w, 1); |
1111 | array_needsize (signals, signalmax, w->signum, signals_init); |
1477 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1112 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1478 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1113 | |
1479 | |
1114 | if (!w->next) |
1480 | if (!((WL)w)->next) |
1115 | { |
1481 | { |
|
|
1482 | #if WIN32 |
|
|
1483 | signal (w->signum, sighandler); |
|
|
1484 | #else |
1116 | struct sigaction sa; |
1485 | struct sigaction sa; |
1117 | sa.sa_handler = sighandler; |
1486 | sa.sa_handler = sighandler; |
1118 | sigfillset (&sa.sa_mask); |
1487 | sigfillset (&sa.sa_mask); |
1119 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1488 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1120 | sigaction (w->signum, &sa, 0); |
1489 | sigaction (w->signum, &sa, 0); |
|
|
1490 | #endif |
1121 | } |
1491 | } |
1122 | } |
1492 | } |
1123 | |
1493 | |
1124 | void |
1494 | void |
1125 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1495 | ev_signal_stop (EV_P_ struct ev_signal *w) |
… | |
… | |
1134 | if (!signals [w->signum - 1].head) |
1504 | if (!signals [w->signum - 1].head) |
1135 | signal (w->signum, SIG_DFL); |
1505 | signal (w->signum, SIG_DFL); |
1136 | } |
1506 | } |
1137 | |
1507 | |
1138 | void |
1508 | void |
1139 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1140 | { |
|
|
1141 | if (ev_is_active (w)) |
|
|
1142 | return; |
|
|
1143 | |
|
|
1144 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1145 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1146 | idles [idlecnt - 1] = w; |
|
|
1147 | } |
|
|
1148 | |
|
|
1149 | void |
|
|
1150 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1151 | { |
|
|
1152 | ev_clear_pending (EV_A_ (W)w); |
|
|
1153 | if (ev_is_active (w)) |
|
|
1154 | return; |
|
|
1155 | |
|
|
1156 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1157 | ev_stop (EV_A_ (W)w); |
|
|
1158 | } |
|
|
1159 | |
|
|
1160 | void |
|
|
1161 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1162 | { |
|
|
1163 | if (ev_is_active (w)) |
|
|
1164 | return; |
|
|
1165 | |
|
|
1166 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1167 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1168 | prepares [preparecnt - 1] = w; |
|
|
1169 | } |
|
|
1170 | |
|
|
1171 | void |
|
|
1172 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1173 | { |
|
|
1174 | ev_clear_pending (EV_A_ (W)w); |
|
|
1175 | if (ev_is_active (w)) |
|
|
1176 | return; |
|
|
1177 | |
|
|
1178 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1179 | ev_stop (EV_A_ (W)w); |
|
|
1180 | } |
|
|
1181 | |
|
|
1182 | void |
|
|
1183 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1184 | { |
|
|
1185 | if (ev_is_active (w)) |
|
|
1186 | return; |
|
|
1187 | |
|
|
1188 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1189 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1190 | checks [checkcnt - 1] = w; |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | void |
|
|
1194 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1195 | { |
|
|
1196 | ev_clear_pending (EV_A_ (W)w); |
|
|
1197 | if (ev_is_active (w)) |
|
|
1198 | return; |
|
|
1199 | |
|
|
1200 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1201 | ev_stop (EV_A_ (W)w); |
|
|
1202 | } |
|
|
1203 | |
|
|
1204 | void |
|
|
1205 | ev_child_start (EV_P_ struct ev_child *w) |
1509 | ev_child_start (EV_P_ struct ev_child *w) |
1206 | { |
1510 | { |
|
|
1511 | #if EV_MULTIPLICITY |
|
|
1512 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1513 | #endif |
1207 | if (ev_is_active (w)) |
1514 | if (ev_is_active (w)) |
1208 | return; |
1515 | return; |
1209 | |
1516 | |
1210 | ev_start (EV_A_ (W)w, 1); |
1517 | ev_start (EV_A_ (W)w, 1); |
1211 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1518 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
… | |
… | |
1238 | void (*cb)(int revents, void *arg) = once->cb; |
1545 | void (*cb)(int revents, void *arg) = once->cb; |
1239 | void *arg = once->arg; |
1546 | void *arg = once->arg; |
1240 | |
1547 | |
1241 | ev_io_stop (EV_A_ &once->io); |
1548 | ev_io_stop (EV_A_ &once->io); |
1242 | ev_timer_stop (EV_A_ &once->to); |
1549 | ev_timer_stop (EV_A_ &once->to); |
1243 | free (once); |
1550 | ev_free (once); |
1244 | |
1551 | |
1245 | cb (revents, arg); |
1552 | cb (revents, arg); |
1246 | } |
1553 | } |
1247 | |
1554 | |
1248 | static void |
1555 | static void |
… | |
… | |
1258 | } |
1565 | } |
1259 | |
1566 | |
1260 | void |
1567 | void |
1261 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1568 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1262 | { |
1569 | { |
1263 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1570 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1264 | |
1571 | |
1265 | if (!once) |
1572 | if (!once) |
1266 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1573 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1267 | else |
1574 | else |
1268 | { |
1575 | { |
1269 | once->cb = cb; |
1576 | once->cb = cb; |
1270 | once->arg = arg; |
1577 | once->arg = arg; |
1271 | |
1578 | |
1272 | ev_watcher_init (&once->io, once_cb_io); |
1579 | ev_init (&once->io, once_cb_io); |
1273 | if (fd >= 0) |
1580 | if (fd >= 0) |
1274 | { |
1581 | { |
1275 | ev_io_set (&once->io, fd, events); |
1582 | ev_io_set (&once->io, fd, events); |
1276 | ev_io_start (EV_A_ &once->io); |
1583 | ev_io_start (EV_A_ &once->io); |
1277 | } |
1584 | } |
1278 | |
1585 | |
1279 | ev_watcher_init (&once->to, once_cb_to); |
1586 | ev_init (&once->to, once_cb_to); |
1280 | if (timeout >= 0.) |
1587 | if (timeout >= 0.) |
1281 | { |
1588 | { |
1282 | ev_timer_set (&once->to, timeout, 0.); |
1589 | ev_timer_set (&once->to, timeout, 0.); |
1283 | ev_timer_start (EV_A_ &once->to); |
1590 | ev_timer_start (EV_A_ &once->to); |
1284 | } |
1591 | } |
1285 | } |
1592 | } |
1286 | } |
1593 | } |
1287 | |
1594 | |
1288 | /*****************************************************************************/ |
|
|
1289 | |
|
|
1290 | #if 0 |
|
|
1291 | |
|
|
1292 | struct ev_io wio; |
|
|
1293 | |
|
|
1294 | static void |
|
|
1295 | sin_cb (struct ev_io *w, int revents) |
|
|
1296 | { |
|
|
1297 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | static void |
|
|
1301 | ocb (struct ev_timer *w, int revents) |
|
|
1302 | { |
|
|
1303 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1304 | ev_timer_stop (w); |
|
|
1305 | ev_timer_start (w); |
|
|
1306 | } |
|
|
1307 | |
|
|
1308 | static void |
|
|
1309 | scb (struct ev_signal *w, int revents) |
|
|
1310 | { |
|
|
1311 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1312 | ev_io_stop (&wio); |
|
|
1313 | ev_io_start (&wio); |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | static void |
|
|
1317 | gcb (struct ev_signal *w, int revents) |
|
|
1318 | { |
|
|
1319 | fprintf (stderr, "generic %x\n", revents); |
|
|
1320 | |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | int main (void) |
|
|
1324 | { |
|
|
1325 | ev_init (0); |
|
|
1326 | |
|
|
1327 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1328 | ev_io_start (&wio); |
|
|
1329 | |
|
|
1330 | struct ev_timer t[10000]; |
|
|
1331 | |
|
|
1332 | #if 0 |
|
|
1333 | int i; |
|
|
1334 | for (i = 0; i < 10000; ++i) |
|
|
1335 | { |
|
|
1336 | struct ev_timer *w = t + i; |
|
|
1337 | ev_watcher_init (w, ocb, i); |
|
|
1338 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1339 | ev_timer_start (w); |
|
|
1340 | if (drand48 () < 0.5) |
|
|
1341 | ev_timer_stop (w); |
|
|
1342 | } |
|
|
1343 | #endif |
|
|
1344 | |
|
|
1345 | struct ev_timer t1; |
|
|
1346 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1347 | ev_timer_start (&t1); |
|
|
1348 | |
|
|
1349 | struct ev_signal sig; |
|
|
1350 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1351 | ev_signal_start (&sig); |
|
|
1352 | |
|
|
1353 | struct ev_check cw; |
|
|
1354 | ev_check_init (&cw, gcb); |
|
|
1355 | ev_check_start (&cw); |
|
|
1356 | |
|
|
1357 | struct ev_idle iw; |
|
|
1358 | ev_idle_init (&iw, gcb); |
|
|
1359 | ev_idle_start (&iw); |
|
|
1360 | |
|
|
1361 | ev_loop (0); |
|
|
1362 | |
|
|
1363 | return 0; |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | #endif |
|
|
1367 | |
|
|
1368 | |
|
|
1369 | |
|
|
1370 | |
|
|