1 | /* |
1 | /* |
|
|
2 | * libev event processing core, watcher management |
|
|
3 | * |
2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
3 | * All rights reserved. |
5 | * All rights reserved. |
4 | * |
6 | * |
5 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions are |
8 | * modification, are permitted provided that the following conditions are |
… | |
… | |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (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 |
27 | * 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. |
28 | */ |
30 | */ |
29 | |
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | #ifndef EV_STANDALONE |
|
|
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 | |
|
|
64 | #endif |
|
|
65 | |
30 | #include <math.h> |
66 | #include <math.h> |
31 | #include <stdlib.h> |
67 | #include <stdlib.h> |
32 | #include <unistd.h> |
|
|
33 | #include <fcntl.h> |
68 | #include <fcntl.h> |
34 | #include <signal.h> |
|
|
35 | #include <stddef.h> |
69 | #include <stddef.h> |
36 | |
70 | |
37 | #include <stdio.h> |
71 | #include <stdio.h> |
38 | |
72 | |
39 | #include <assert.h> |
73 | #include <assert.h> |
40 | #include <errno.h> |
74 | #include <errno.h> |
41 | #include <sys/types.h> |
75 | #include <sys/types.h> |
42 | #include <sys/wait.h> |
|
|
43 | #include <sys/time.h> |
|
|
44 | #include <time.h> |
76 | #include <time.h> |
45 | |
77 | |
46 | #ifndef HAVE_MONOTONIC |
78 | #include <signal.h> |
47 | # ifdef CLOCK_MONOTONIC |
79 | |
48 | # define HAVE_MONOTONIC 1 |
80 | #ifndef _WIN32 |
|
|
81 | # include <unistd.h> |
|
|
82 | # include <sys/time.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 | #endif |
90 | #endif |
51 | |
91 | |
|
|
92 | /**/ |
|
|
93 | |
|
|
94 | #ifndef EV_USE_MONOTONIC |
|
|
95 | # define EV_USE_MONOTONIC 1 |
|
|
96 | #endif |
|
|
97 | |
52 | #ifndef HAVE_SELECT |
98 | #ifndef EV_USE_SELECT |
53 | # define HAVE_SELECT 1 |
99 | # define EV_USE_SELECT 1 |
|
|
100 | # define EV_SELECT_USE_FD_SET 1 |
|
|
101 | #endif |
|
|
102 | |
|
|
103 | #ifndef EV_USE_POLL |
|
|
104 | # ifdef _WIN32 |
|
|
105 | # define EV_USE_POLL 0 |
|
|
106 | # else |
|
|
107 | # define EV_USE_POLL 1 |
54 | #endif |
108 | # endif |
|
|
109 | #endif |
55 | |
110 | |
56 | #ifndef HAVE_EPOLL |
111 | #ifndef EV_USE_EPOLL |
57 | # define HAVE_EPOLL 0 |
112 | # define EV_USE_EPOLL 0 |
58 | #endif |
113 | #endif |
59 | |
114 | |
|
|
115 | #ifndef EV_USE_KQUEUE |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
|
117 | #endif |
|
|
118 | |
60 | #ifndef HAVE_REALTIME |
119 | #ifndef EV_USE_REALTIME |
61 | # define HAVE_REALTIME 1 /* posix requirement, but might be slower */ |
120 | # define EV_USE_REALTIME 1 |
62 | #endif |
121 | #endif |
|
|
122 | |
|
|
123 | /**/ |
|
|
124 | |
|
|
125 | /* darwin simply cannot be helped */ |
|
|
126 | #ifdef __APPLE__ |
|
|
127 | # undef EV_USE_POLL |
|
|
128 | # undef EV_USE_KQUEUE |
|
|
129 | #endif |
|
|
130 | |
|
|
131 | #ifndef CLOCK_MONOTONIC |
|
|
132 | # undef EV_USE_MONOTONIC |
|
|
133 | # define EV_USE_MONOTONIC 0 |
|
|
134 | #endif |
|
|
135 | |
|
|
136 | #ifndef CLOCK_REALTIME |
|
|
137 | # undef EV_USE_REALTIME |
|
|
138 | # define EV_USE_REALTIME 0 |
|
|
139 | #endif |
|
|
140 | |
|
|
141 | #if EV_SELECT_IS_WINSOCKET |
|
|
142 | # include <winsock.h> |
|
|
143 | #endif |
|
|
144 | |
|
|
145 | /**/ |
63 | |
146 | |
64 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
147 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
65 | #define MAX_BLOCKTIME 60. |
148 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
66 | #define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */ |
149 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
150 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
67 | |
151 | |
|
|
152 | #ifdef EV_H |
|
|
153 | # include EV_H |
|
|
154 | #else |
68 | #include "ev.h" |
155 | # include "ev.h" |
|
|
156 | #endif |
|
|
157 | |
|
|
158 | #if __GNUC__ >= 3 |
|
|
159 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
160 | # define inline inline |
|
|
161 | #else |
|
|
162 | # define expect(expr,value) (expr) |
|
|
163 | # define inline static |
|
|
164 | #endif |
|
|
165 | |
|
|
166 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
167 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
168 | |
|
|
169 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
170 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
|
|
171 | |
|
|
172 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
69 | |
173 | |
70 | typedef struct ev_watcher *W; |
174 | typedef struct ev_watcher *W; |
71 | typedef struct ev_watcher_list *WL; |
175 | typedef struct ev_watcher_list *WL; |
72 | typedef struct ev_watcher_time *WT; |
176 | typedef struct ev_watcher_time *WT; |
73 | |
177 | |
74 | static ev_tstamp now, diff; /* monotonic clock */ |
178 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
179 | |
|
|
180 | #ifdef _WIN32 |
|
|
181 | # include "ev_win32.c" |
|
|
182 | #endif |
|
|
183 | |
|
|
184 | /*****************************************************************************/ |
|
|
185 | |
|
|
186 | static void (*syserr_cb)(const char *msg); |
|
|
187 | |
|
|
188 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
189 | { |
|
|
190 | syserr_cb = cb; |
|
|
191 | } |
|
|
192 | |
|
|
193 | static void |
|
|
194 | syserr (const char *msg) |
|
|
195 | { |
|
|
196 | if (!msg) |
|
|
197 | msg = "(libev) system error"; |
|
|
198 | |
|
|
199 | if (syserr_cb) |
|
|
200 | syserr_cb (msg); |
|
|
201 | else |
|
|
202 | { |
|
|
203 | perror (msg); |
|
|
204 | abort (); |
|
|
205 | } |
|
|
206 | } |
|
|
207 | |
|
|
208 | static void *(*alloc)(void *ptr, long size); |
|
|
209 | |
|
|
210 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
211 | { |
|
|
212 | alloc = cb; |
|
|
213 | } |
|
|
214 | |
|
|
215 | static void * |
|
|
216 | ev_realloc (void *ptr, long size) |
|
|
217 | { |
|
|
218 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
219 | |
|
|
220 | if (!ptr && size) |
|
|
221 | { |
|
|
222 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
223 | abort (); |
|
|
224 | } |
|
|
225 | |
|
|
226 | return ptr; |
|
|
227 | } |
|
|
228 | |
|
|
229 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
230 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
231 | |
|
|
232 | /*****************************************************************************/ |
|
|
233 | |
|
|
234 | typedef struct |
|
|
235 | { |
|
|
236 | WL head; |
|
|
237 | unsigned char events; |
|
|
238 | unsigned char reify; |
|
|
239 | #if EV_SELECT_IS_WINSOCKET |
|
|
240 | SOCKET handle; |
|
|
241 | #endif |
|
|
242 | } ANFD; |
|
|
243 | |
|
|
244 | typedef struct |
|
|
245 | { |
|
|
246 | W w; |
|
|
247 | int events; |
|
|
248 | } ANPENDING; |
|
|
249 | |
|
|
250 | #if EV_MULTIPLICITY |
|
|
251 | |
|
|
252 | struct ev_loop |
|
|
253 | { |
|
|
254 | ev_tstamp ev_rt_now; |
|
|
255 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
256 | #define VAR(name,decl) decl; |
|
|
257 | #include "ev_vars.h" |
|
|
258 | #undef VAR |
|
|
259 | }; |
|
|
260 | #include "ev_wrap.h" |
|
|
261 | |
|
|
262 | struct ev_loop default_loop_struct; |
|
|
263 | static struct ev_loop *default_loop; |
|
|
264 | |
|
|
265 | #else |
|
|
266 | |
75 | ev_tstamp ev_now; |
267 | ev_tstamp ev_rt_now; |
76 | int ev_method; |
268 | #define VAR(name,decl) static decl; |
|
|
269 | #include "ev_vars.h" |
|
|
270 | #undef VAR |
77 | |
271 | |
78 | static int have_monotonic; /* runtime */ |
272 | static int default_loop; |
79 | |
273 | |
80 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
274 | #endif |
81 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
82 | static void (*method_poll)(ev_tstamp timeout); |
|
|
83 | |
275 | |
84 | /*****************************************************************************/ |
276 | /*****************************************************************************/ |
85 | |
277 | |
86 | ev_tstamp |
278 | ev_tstamp |
87 | ev_time (void) |
279 | ev_time (void) |
88 | { |
280 | { |
89 | #if HAVE_REALTIME |
281 | #if EV_USE_REALTIME |
90 | struct timespec ts; |
282 | struct timespec ts; |
91 | clock_gettime (CLOCK_REALTIME, &ts); |
283 | clock_gettime (CLOCK_REALTIME, &ts); |
92 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
284 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
93 | #else |
285 | #else |
94 | struct timeval tv; |
286 | struct timeval tv; |
95 | gettimeofday (&tv, 0); |
287 | gettimeofday (&tv, 0); |
96 | return tv.tv_sec + tv.tv_usec * 1e-6; |
288 | return tv.tv_sec + tv.tv_usec * 1e-6; |
97 | #endif |
289 | #endif |
98 | } |
290 | } |
99 | |
291 | |
100 | static ev_tstamp |
292 | inline ev_tstamp |
101 | get_clock (void) |
293 | get_clock (void) |
102 | { |
294 | { |
103 | #if HAVE_MONOTONIC |
295 | #if EV_USE_MONOTONIC |
104 | if (have_monotonic) |
296 | if (expect_true (have_monotonic)) |
105 | { |
297 | { |
106 | struct timespec ts; |
298 | struct timespec ts; |
107 | clock_gettime (CLOCK_MONOTONIC, &ts); |
299 | clock_gettime (CLOCK_MONOTONIC, &ts); |
108 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
300 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
109 | } |
301 | } |
110 | #endif |
302 | #endif |
111 | |
303 | |
112 | return ev_time (); |
304 | return ev_time (); |
113 | } |
305 | } |
114 | |
306 | |
|
|
307 | #if EV_MULTIPLICITY |
|
|
308 | ev_tstamp |
|
|
309 | ev_now (EV_P) |
|
|
310 | { |
|
|
311 | return ev_rt_now; |
|
|
312 | } |
|
|
313 | #endif |
|
|
314 | |
|
|
315 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
|
|
316 | |
115 | #define array_needsize(base,cur,cnt,init) \ |
317 | #define array_needsize(type,base,cur,cnt,init) \ |
116 | if ((cnt) > cur) \ |
318 | if (expect_false ((cnt) > cur)) \ |
117 | { \ |
319 | { \ |
118 | int newcnt = cur; \ |
320 | int newcnt = cur; \ |
119 | do \ |
321 | do \ |
120 | { \ |
322 | { \ |
121 | newcnt = (newcnt << 1) | 4 & ~3; \ |
323 | newcnt = array_roundsize (type, newcnt << 1); \ |
122 | } \ |
324 | } \ |
123 | while ((cnt) > newcnt); \ |
325 | while ((cnt) > newcnt); \ |
124 | \ |
326 | \ |
125 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
327 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
126 | init (base + cur, newcnt - cur); \ |
328 | init (base + cur, newcnt - cur); \ |
127 | cur = newcnt; \ |
329 | cur = newcnt; \ |
128 | } |
330 | } |
|
|
331 | |
|
|
332 | #define array_slim(type,stem) \ |
|
|
333 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
334 | { \ |
|
|
335 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
336 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
337 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
338 | } |
|
|
339 | |
|
|
340 | #define array_free(stem, idx) \ |
|
|
341 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
129 | |
342 | |
130 | /*****************************************************************************/ |
343 | /*****************************************************************************/ |
131 | |
344 | |
132 | typedef struct |
|
|
133 | { |
|
|
134 | struct ev_io *head; |
|
|
135 | unsigned char wev, rev; /* want, received event set */ |
|
|
136 | } ANFD; |
|
|
137 | |
|
|
138 | static ANFD *anfds; |
|
|
139 | static int anfdmax; |
|
|
140 | |
|
|
141 | static int *fdchanges; |
|
|
142 | static int fdchangemax, fdchangecnt; |
|
|
143 | |
|
|
144 | static void |
345 | static void |
145 | anfds_init (ANFD *base, int count) |
346 | anfds_init (ANFD *base, int count) |
146 | { |
347 | { |
147 | while (count--) |
348 | while (count--) |
148 | { |
349 | { |
149 | base->head = 0; |
350 | base->head = 0; |
150 | base->wev = base->rev = EV_NONE; |
351 | base->events = EV_NONE; |
|
|
352 | base->reify = 0; |
|
|
353 | |
151 | ++base; |
354 | ++base; |
152 | } |
355 | } |
153 | } |
356 | } |
154 | |
357 | |
155 | typedef struct |
358 | void |
|
|
359 | ev_feed_event (EV_P_ void *w, int revents) |
156 | { |
360 | { |
157 | W w; |
361 | W w_ = (W)w; |
158 | int events; |
|
|
159 | } ANPENDING; |
|
|
160 | |
362 | |
161 | static ANPENDING *pendings; |
363 | if (w_->pending) |
162 | static int pendingmax, pendingcnt; |
|
|
163 | |
|
|
164 | static void |
|
|
165 | event (W w, int events) |
|
|
166 | { |
|
|
167 | if (w->active) |
|
|
168 | { |
364 | { |
169 | w->pending = ++pendingcnt; |
|
|
170 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
171 | pendings [pendingcnt - 1].w = w; |
|
|
172 | pendings [pendingcnt - 1].events = events; |
365 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
366 | return; |
173 | } |
367 | } |
174 | } |
|
|
175 | |
368 | |
|
|
369 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
370 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
371 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
372 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
373 | } |
|
|
374 | |
176 | static void |
375 | static void |
|
|
376 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
377 | { |
|
|
378 | int i; |
|
|
379 | |
|
|
380 | for (i = 0; i < eventcnt; ++i) |
|
|
381 | ev_feed_event (EV_A_ events [i], type); |
|
|
382 | } |
|
|
383 | |
|
|
384 | inline void |
177 | fd_event (int fd, int events) |
385 | fd_event (EV_P_ int fd, int revents) |
178 | { |
386 | { |
179 | ANFD *anfd = anfds + fd; |
387 | ANFD *anfd = anfds + fd; |
180 | struct ev_io *w; |
388 | struct ev_io *w; |
181 | |
389 | |
182 | for (w = anfd->head; w; w = w->next) |
390 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
183 | { |
391 | { |
184 | int ev = w->events & events; |
392 | int ev = w->events & revents; |
185 | |
393 | |
186 | if (ev) |
394 | if (ev) |
187 | event ((W)w, ev); |
395 | ev_feed_event (EV_A_ (W)w, ev); |
188 | } |
396 | } |
189 | } |
397 | } |
190 | |
398 | |
|
|
399 | void |
|
|
400 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
401 | { |
|
|
402 | fd_event (EV_A_ fd, revents); |
|
|
403 | } |
|
|
404 | |
|
|
405 | /*****************************************************************************/ |
|
|
406 | |
191 | static void |
407 | static void |
192 | queue_events (W *events, int eventcnt, int type) |
408 | fd_reify (EV_P) |
193 | { |
409 | { |
194 | int i; |
410 | int i; |
195 | |
411 | |
196 | for (i = 0; i < eventcnt; ++i) |
412 | for (i = 0; i < fdchangecnt; ++i) |
197 | event (events [i], type); |
413 | { |
|
|
414 | int fd = fdchanges [i]; |
|
|
415 | ANFD *anfd = anfds + fd; |
|
|
416 | struct ev_io *w; |
|
|
417 | |
|
|
418 | int events = 0; |
|
|
419 | |
|
|
420 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
|
|
421 | events |= w->events; |
|
|
422 | |
|
|
423 | #if EV_SELECT_IS_WINSOCKET |
|
|
424 | if (events) |
|
|
425 | { |
|
|
426 | unsigned long argp; |
|
|
427 | anfd->handle = _get_osfhandle (fd); |
|
|
428 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
429 | } |
|
|
430 | #endif |
|
|
431 | |
|
|
432 | anfd->reify = 0; |
|
|
433 | |
|
|
434 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
435 | anfd->events = events; |
|
|
436 | } |
|
|
437 | |
|
|
438 | fdchangecnt = 0; |
|
|
439 | } |
|
|
440 | |
|
|
441 | static void |
|
|
442 | fd_change (EV_P_ int fd) |
|
|
443 | { |
|
|
444 | if (anfds [fd].reify) |
|
|
445 | return; |
|
|
446 | |
|
|
447 | anfds [fd].reify = 1; |
|
|
448 | |
|
|
449 | ++fdchangecnt; |
|
|
450 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
|
|
451 | fdchanges [fdchangecnt - 1] = fd; |
|
|
452 | } |
|
|
453 | |
|
|
454 | static void |
|
|
455 | fd_kill (EV_P_ int fd) |
|
|
456 | { |
|
|
457 | struct ev_io *w; |
|
|
458 | |
|
|
459 | while ((w = (struct ev_io *)anfds [fd].head)) |
|
|
460 | { |
|
|
461 | ev_io_stop (EV_A_ w); |
|
|
462 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
463 | } |
|
|
464 | } |
|
|
465 | |
|
|
466 | static int |
|
|
467 | fd_valid (int fd) |
|
|
468 | { |
|
|
469 | #ifdef _WIN32 |
|
|
470 | return _get_osfhandle (fd) != -1; |
|
|
471 | #else |
|
|
472 | return fcntl (fd, F_GETFD) != -1; |
|
|
473 | #endif |
198 | } |
474 | } |
199 | |
475 | |
200 | /* called on EBADF to verify fds */ |
476 | /* called on EBADF to verify fds */ |
201 | static void |
477 | static void |
202 | fd_recheck (void) |
478 | fd_ebadf (EV_P) |
203 | { |
479 | { |
204 | int fd; |
480 | int fd; |
205 | |
481 | |
206 | for (fd = 0; fd < anfdmax; ++fd) |
482 | for (fd = 0; fd < anfdmax; ++fd) |
207 | if (anfds [fd].wev) |
483 | if (anfds [fd].events) |
208 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
484 | if (!fd_valid (fd) == -1 && errno == EBADF) |
209 | while (anfds [fd].head) |
485 | fd_kill (EV_A_ fd); |
|
|
486 | } |
|
|
487 | |
|
|
488 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
489 | static void |
|
|
490 | fd_enomem (EV_P) |
|
|
491 | { |
|
|
492 | int fd; |
|
|
493 | |
|
|
494 | for (fd = anfdmax; fd--; ) |
|
|
495 | if (anfds [fd].events) |
210 | { |
496 | { |
211 | event ((W)anfds [fd].head, EV_ERROR); |
497 | fd_kill (EV_A_ fd); |
212 | evio_stop (anfds [fd].head); |
498 | return; |
213 | } |
499 | } |
|
|
500 | } |
|
|
501 | |
|
|
502 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
503 | static void |
|
|
504 | fd_rearm_all (EV_P) |
|
|
505 | { |
|
|
506 | int fd; |
|
|
507 | |
|
|
508 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
509 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
510 | if (anfds [fd].events) |
|
|
511 | { |
|
|
512 | anfds [fd].events = 0; |
|
|
513 | fd_change (EV_A_ fd); |
|
|
514 | } |
214 | } |
515 | } |
215 | |
516 | |
216 | /*****************************************************************************/ |
517 | /*****************************************************************************/ |
217 | |
518 | |
218 | static struct ev_timer **timers; |
|
|
219 | static int timermax, timercnt; |
|
|
220 | |
|
|
221 | static struct ev_periodic **periodics; |
|
|
222 | static int periodicmax, periodiccnt; |
|
|
223 | |
|
|
224 | static void |
519 | static void |
225 | upheap (WT *timers, int k) |
520 | upheap (WT *heap, int k) |
226 | { |
521 | { |
227 | WT w = timers [k]; |
522 | WT w = heap [k]; |
228 | |
523 | |
229 | while (k && timers [k >> 1]->at > w->at) |
524 | while (k && heap [k >> 1]->at > w->at) |
230 | { |
525 | { |
231 | timers [k] = timers [k >> 1]; |
526 | heap [k] = heap [k >> 1]; |
232 | timers [k]->active = k + 1; |
527 | ((W)heap [k])->active = k + 1; |
233 | k >>= 1; |
528 | k >>= 1; |
234 | } |
529 | } |
235 | |
530 | |
236 | timers [k] = w; |
531 | heap [k] = w; |
237 | timers [k]->active = k + 1; |
532 | ((W)heap [k])->active = k + 1; |
238 | |
533 | |
239 | } |
534 | } |
240 | |
535 | |
241 | static void |
536 | static void |
242 | downheap (WT *timers, int N, int k) |
537 | downheap (WT *heap, int N, int k) |
243 | { |
538 | { |
244 | WT w = timers [k]; |
539 | WT w = heap [k]; |
245 | |
540 | |
246 | while (k < (N >> 1)) |
541 | while (k < (N >> 1)) |
247 | { |
542 | { |
248 | int j = k << 1; |
543 | int j = k << 1; |
249 | |
544 | |
250 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
545 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
251 | ++j; |
546 | ++j; |
252 | |
547 | |
253 | if (w->at <= timers [j]->at) |
548 | if (w->at <= heap [j]->at) |
254 | break; |
549 | break; |
255 | |
550 | |
256 | timers [k] = timers [j]; |
551 | heap [k] = heap [j]; |
257 | timers [k]->active = k + 1; |
552 | ((W)heap [k])->active = k + 1; |
258 | k = j; |
553 | k = j; |
259 | } |
554 | } |
260 | |
555 | |
261 | timers [k] = w; |
556 | heap [k] = w; |
262 | timers [k]->active = k + 1; |
557 | ((W)heap [k])->active = k + 1; |
|
|
558 | } |
|
|
559 | |
|
|
560 | inline void |
|
|
561 | adjustheap (WT *heap, int N, int k) |
|
|
562 | { |
|
|
563 | upheap (heap, k); |
|
|
564 | downheap (heap, N, k); |
263 | } |
565 | } |
264 | |
566 | |
265 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
266 | |
568 | |
267 | typedef struct |
569 | typedef struct |
268 | { |
570 | { |
269 | struct ev_signal *head; |
571 | WL head; |
270 | sig_atomic_t gotsig; |
572 | sig_atomic_t volatile gotsig; |
271 | } ANSIG; |
573 | } ANSIG; |
272 | |
574 | |
273 | static ANSIG *signals; |
575 | static ANSIG *signals; |
274 | static int signalmax; |
576 | static int signalmax; |
275 | |
577 | |
276 | static int sigpipe [2]; |
578 | static int sigpipe [2]; |
277 | static sig_atomic_t gotsig; |
579 | static sig_atomic_t volatile gotsig; |
278 | static struct ev_io sigev; |
580 | static struct ev_io sigev; |
279 | |
581 | |
280 | static void |
582 | static void |
281 | signals_init (ANSIG *base, int count) |
583 | signals_init (ANSIG *base, int count) |
282 | { |
584 | { |
283 | while (count--) |
585 | while (count--) |
284 | { |
586 | { |
285 | base->head = 0; |
587 | base->head = 0; |
286 | base->gotsig = 0; |
588 | base->gotsig = 0; |
|
|
589 | |
287 | ++base; |
590 | ++base; |
288 | } |
591 | } |
289 | } |
592 | } |
290 | |
593 | |
291 | static void |
594 | static void |
292 | sighandler (int signum) |
595 | sighandler (int signum) |
293 | { |
596 | { |
|
|
597 | #if _WIN32 |
|
|
598 | signal (signum, sighandler); |
|
|
599 | #endif |
|
|
600 | |
294 | signals [signum - 1].gotsig = 1; |
601 | signals [signum - 1].gotsig = 1; |
295 | |
602 | |
296 | if (!gotsig) |
603 | if (!gotsig) |
297 | { |
604 | { |
|
|
605 | int old_errno = errno; |
298 | gotsig = 1; |
606 | gotsig = 1; |
299 | write (sigpipe [1], &gotsig, 1); |
607 | write (sigpipe [1], &signum, 1); |
|
|
608 | errno = old_errno; |
300 | } |
609 | } |
301 | } |
610 | } |
302 | |
611 | |
|
|
612 | void |
|
|
613 | ev_feed_signal_event (EV_P_ int signum) |
|
|
614 | { |
|
|
615 | WL w; |
|
|
616 | |
|
|
617 | #if EV_MULTIPLICITY |
|
|
618 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | --signum; |
|
|
622 | |
|
|
623 | if (signum < 0 || signum >= signalmax) |
|
|
624 | return; |
|
|
625 | |
|
|
626 | signals [signum].gotsig = 0; |
|
|
627 | |
|
|
628 | for (w = signals [signum].head; w; w = w->next) |
|
|
629 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
630 | } |
|
|
631 | |
303 | static void |
632 | static void |
304 | sigcb (struct ev_io *iow, int revents) |
633 | sigcb (EV_P_ struct ev_io *iow, int revents) |
305 | { |
634 | { |
306 | struct ev_signal *w; |
|
|
307 | int sig; |
635 | int signum; |
308 | |
636 | |
|
|
637 | read (sigpipe [0], &revents, 1); |
309 | gotsig = 0; |
638 | gotsig = 0; |
310 | read (sigpipe [0], &revents, 1); |
|
|
311 | |
639 | |
312 | for (sig = signalmax; sig--; ) |
640 | for (signum = signalmax; signum--; ) |
313 | if (signals [sig].gotsig) |
641 | if (signals [signum].gotsig) |
314 | { |
642 | ev_feed_signal_event (EV_A_ signum + 1); |
315 | signals [sig].gotsig = 0; |
|
|
316 | |
|
|
317 | for (w = signals [sig].head; w; w = w->next) |
|
|
318 | event ((W)w, EV_SIGNAL); |
|
|
319 | } |
|
|
320 | } |
643 | } |
321 | |
644 | |
322 | static void |
645 | inline void |
323 | siginit (void) |
646 | fd_intern (int fd) |
324 | { |
647 | { |
|
|
648 | #ifdef _WIN32 |
|
|
649 | int arg = 1; |
|
|
650 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
651 | #else |
325 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
652 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
326 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
327 | |
|
|
328 | /* rather than sort out wether we really need nb, set it */ |
|
|
329 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
653 | fcntl (fd, F_SETFL, O_NONBLOCK); |
330 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
654 | #endif |
|
|
655 | } |
331 | |
656 | |
|
|
657 | static void |
|
|
658 | siginit (EV_P) |
|
|
659 | { |
|
|
660 | fd_intern (sigpipe [0]); |
|
|
661 | fd_intern (sigpipe [1]); |
|
|
662 | |
332 | evio_set (&sigev, sigpipe [0], EV_READ); |
663 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
333 | evio_start (&sigev); |
664 | ev_io_start (EV_A_ &sigev); |
|
|
665 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
334 | } |
666 | } |
335 | |
667 | |
336 | /*****************************************************************************/ |
668 | /*****************************************************************************/ |
337 | |
669 | |
338 | static struct ev_idle **idles; |
|
|
339 | static int idlemax, idlecnt; |
|
|
340 | |
|
|
341 | static struct ev_prepare **prepares; |
|
|
342 | static int preparemax, preparecnt; |
|
|
343 | |
|
|
344 | static struct ev_check **checks; |
|
|
345 | static int checkmax, checkcnt; |
|
|
346 | |
|
|
347 | /*****************************************************************************/ |
|
|
348 | |
|
|
349 | static struct ev_child *childs [PID_HASHSIZE]; |
670 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
671 | |
|
|
672 | #ifndef _WIN32 |
|
|
673 | |
350 | static struct ev_signal childev; |
674 | static struct ev_signal childev; |
351 | |
675 | |
352 | #ifndef WCONTINUED |
676 | #ifndef WCONTINUED |
353 | # define WCONTINUED 0 |
677 | # define WCONTINUED 0 |
354 | #endif |
678 | #endif |
355 | |
679 | |
356 | static void |
680 | static void |
357 | childcb (struct ev_signal *sw, int revents) |
681 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
358 | { |
682 | { |
359 | struct ev_child *w; |
683 | struct ev_child *w; |
|
|
684 | |
|
|
685 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
686 | if (w->pid == pid || !w->pid) |
|
|
687 | { |
|
|
688 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
689 | w->rpid = pid; |
|
|
690 | w->rstatus = status; |
|
|
691 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
692 | } |
|
|
693 | } |
|
|
694 | |
|
|
695 | static void |
|
|
696 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
697 | { |
360 | int pid, status; |
698 | int pid, status; |
361 | |
699 | |
362 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
700 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
363 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
701 | { |
364 | if (w->pid == pid || w->pid == -1) |
702 | /* make sure we are called again until all childs have been reaped */ |
365 | { |
703 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
366 | w->status = status; |
704 | |
367 | event ((W)w, EV_CHILD); |
705 | child_reap (EV_A_ sw, pid, pid, status); |
368 | } |
706 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
|
|
707 | } |
369 | } |
708 | } |
|
|
709 | |
|
|
710 | #endif |
370 | |
711 | |
371 | /*****************************************************************************/ |
712 | /*****************************************************************************/ |
372 | |
713 | |
|
|
714 | #if EV_USE_KQUEUE |
|
|
715 | # include "ev_kqueue.c" |
|
|
716 | #endif |
373 | #if HAVE_EPOLL |
717 | #if EV_USE_EPOLL |
374 | # include "ev_epoll.c" |
718 | # include "ev_epoll.c" |
375 | #endif |
719 | #endif |
|
|
720 | #if EV_USE_POLL |
|
|
721 | # include "ev_poll.c" |
|
|
722 | #endif |
376 | #if HAVE_SELECT |
723 | #if EV_USE_SELECT |
377 | # include "ev_select.c" |
724 | # include "ev_select.c" |
378 | #endif |
725 | #endif |
379 | |
726 | |
380 | int |
727 | int |
381 | ev_version_major (void) |
728 | ev_version_major (void) |
… | |
… | |
387 | ev_version_minor (void) |
734 | ev_version_minor (void) |
388 | { |
735 | { |
389 | return EV_VERSION_MINOR; |
736 | return EV_VERSION_MINOR; |
390 | } |
737 | } |
391 | |
738 | |
392 | int ev_init (int flags) |
739 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
740 | static int |
|
|
741 | enable_secure (void) |
393 | { |
742 | { |
|
|
743 | #ifdef _WIN32 |
|
|
744 | return 0; |
|
|
745 | #else |
|
|
746 | return getuid () != geteuid () |
|
|
747 | || getgid () != getegid (); |
|
|
748 | #endif |
|
|
749 | } |
|
|
750 | |
|
|
751 | unsigned int |
|
|
752 | ev_method (EV_P) |
|
|
753 | { |
|
|
754 | return method; |
|
|
755 | } |
|
|
756 | |
|
|
757 | static void |
|
|
758 | loop_init (EV_P_ unsigned int flags) |
|
|
759 | { |
394 | if (!ev_method) |
760 | if (!method) |
395 | { |
761 | { |
396 | #if HAVE_MONOTONIC |
762 | #if EV_USE_MONOTONIC |
397 | { |
763 | { |
398 | struct timespec ts; |
764 | struct timespec ts; |
399 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
765 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
400 | have_monotonic = 1; |
766 | have_monotonic = 1; |
401 | } |
767 | } |
402 | #endif |
768 | #endif |
403 | |
769 | |
404 | ev_now = ev_time (); |
770 | ev_rt_now = ev_time (); |
405 | now = get_clock (); |
771 | mn_now = get_clock (); |
|
|
772 | now_floor = mn_now; |
406 | diff = ev_now - now; |
773 | rtmn_diff = ev_rt_now - mn_now; |
407 | |
774 | |
|
|
775 | if (!(flags & EVMETHOD_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
|
|
776 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
777 | |
|
|
778 | if (!(flags & 0x0000ffff)) |
|
|
779 | flags |= 0x0000ffff; |
|
|
780 | |
|
|
781 | method = 0; |
|
|
782 | #if EV_USE_KQUEUE |
|
|
783 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
|
|
784 | #endif |
|
|
785 | #if EV_USE_EPOLL |
|
|
786 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
|
|
787 | #endif |
|
|
788 | #if EV_USE_POLL |
|
|
789 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
|
|
790 | #endif |
|
|
791 | #if EV_USE_SELECT |
|
|
792 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
|
|
793 | #endif |
|
|
794 | |
|
|
795 | ev_init (&sigev, sigcb); |
|
|
796 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
797 | } |
|
|
798 | } |
|
|
799 | |
|
|
800 | void |
|
|
801 | loop_destroy (EV_P) |
|
|
802 | { |
|
|
803 | int i; |
|
|
804 | |
|
|
805 | #if EV_USE_KQUEUE |
|
|
806 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
807 | #endif |
|
|
808 | #if EV_USE_EPOLL |
|
|
809 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
810 | #endif |
|
|
811 | #if EV_USE_POLL |
|
|
812 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
813 | #endif |
|
|
814 | #if EV_USE_SELECT |
|
|
815 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
816 | #endif |
|
|
817 | |
|
|
818 | for (i = NUMPRI; i--; ) |
|
|
819 | array_free (pending, [i]); |
|
|
820 | |
|
|
821 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
822 | array_free (fdchange, EMPTY); |
|
|
823 | array_free (timer, EMPTY); |
|
|
824 | #if EV_PERIODICS |
|
|
825 | array_free (periodic, EMPTY); |
|
|
826 | #endif |
|
|
827 | array_free (idle, EMPTY); |
|
|
828 | array_free (prepare, EMPTY); |
|
|
829 | array_free (check, EMPTY); |
|
|
830 | |
|
|
831 | method = 0; |
|
|
832 | } |
|
|
833 | |
|
|
834 | static void |
|
|
835 | loop_fork (EV_P) |
|
|
836 | { |
|
|
837 | #if EV_USE_EPOLL |
|
|
838 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
839 | #endif |
|
|
840 | #if EV_USE_KQUEUE |
|
|
841 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
842 | #endif |
|
|
843 | |
|
|
844 | if (ev_is_active (&sigev)) |
|
|
845 | { |
|
|
846 | /* default loop */ |
|
|
847 | |
|
|
848 | ev_ref (EV_A); |
|
|
849 | ev_io_stop (EV_A_ &sigev); |
|
|
850 | close (sigpipe [0]); |
|
|
851 | close (sigpipe [1]); |
|
|
852 | |
|
|
853 | while (pipe (sigpipe)) |
|
|
854 | syserr ("(libev) error creating pipe"); |
|
|
855 | |
|
|
856 | siginit (EV_A); |
|
|
857 | } |
|
|
858 | |
|
|
859 | postfork = 0; |
|
|
860 | } |
|
|
861 | |
|
|
862 | #if EV_MULTIPLICITY |
|
|
863 | struct ev_loop * |
|
|
864 | ev_loop_new (unsigned int flags) |
|
|
865 | { |
|
|
866 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
867 | |
|
|
868 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
869 | |
|
|
870 | loop_init (EV_A_ flags); |
|
|
871 | |
|
|
872 | if (ev_method (EV_A)) |
|
|
873 | return loop; |
|
|
874 | |
|
|
875 | return 0; |
|
|
876 | } |
|
|
877 | |
|
|
878 | void |
|
|
879 | ev_loop_destroy (EV_P) |
|
|
880 | { |
|
|
881 | loop_destroy (EV_A); |
|
|
882 | ev_free (loop); |
|
|
883 | } |
|
|
884 | |
|
|
885 | void |
|
|
886 | ev_loop_fork (EV_P) |
|
|
887 | { |
|
|
888 | postfork = 1; |
|
|
889 | } |
|
|
890 | |
|
|
891 | #endif |
|
|
892 | |
|
|
893 | #if EV_MULTIPLICITY |
|
|
894 | struct ev_loop * |
|
|
895 | #else |
|
|
896 | int |
|
|
897 | #endif |
|
|
898 | ev_default_loop (unsigned int flags) |
|
|
899 | { |
|
|
900 | if (sigpipe [0] == sigpipe [1]) |
408 | if (pipe (sigpipe)) |
901 | if (pipe (sigpipe)) |
409 | return 0; |
902 | return 0; |
410 | |
903 | |
411 | ev_method = EVMETHOD_NONE; |
904 | if (!default_loop) |
412 | #if HAVE_EPOLL |
905 | { |
413 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
906 | #if EV_MULTIPLICITY |
|
|
907 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
908 | #else |
|
|
909 | default_loop = 1; |
414 | #endif |
910 | #endif |
415 | #if HAVE_SELECT |
|
|
416 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
|
|
417 | #endif |
|
|
418 | |
911 | |
|
|
912 | loop_init (EV_A_ flags); |
|
|
913 | |
419 | if (ev_method) |
914 | if (ev_method (EV_A)) |
420 | { |
915 | { |
421 | evw_init (&sigev, sigcb); |
|
|
422 | siginit (); |
916 | siginit (EV_A); |
423 | |
917 | |
|
|
918 | #ifndef _WIN32 |
424 | evsignal_init (&childev, childcb, SIGCHLD); |
919 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
920 | ev_set_priority (&childev, EV_MAXPRI); |
425 | evsignal_start (&childev); |
921 | ev_signal_start (EV_A_ &childev); |
|
|
922 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
923 | #endif |
426 | } |
924 | } |
|
|
925 | else |
|
|
926 | default_loop = 0; |
427 | } |
927 | } |
428 | |
928 | |
429 | return ev_method; |
929 | return default_loop; |
|
|
930 | } |
|
|
931 | |
|
|
932 | void |
|
|
933 | ev_default_destroy (void) |
|
|
934 | { |
|
|
935 | #if EV_MULTIPLICITY |
|
|
936 | struct ev_loop *loop = default_loop; |
|
|
937 | #endif |
|
|
938 | |
|
|
939 | #ifndef _WIN32 |
|
|
940 | ev_ref (EV_A); /* child watcher */ |
|
|
941 | ev_signal_stop (EV_A_ &childev); |
|
|
942 | #endif |
|
|
943 | |
|
|
944 | ev_ref (EV_A); /* signal watcher */ |
|
|
945 | ev_io_stop (EV_A_ &sigev); |
|
|
946 | |
|
|
947 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
948 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
949 | |
|
|
950 | loop_destroy (EV_A); |
|
|
951 | } |
|
|
952 | |
|
|
953 | void |
|
|
954 | ev_default_fork (void) |
|
|
955 | { |
|
|
956 | #if EV_MULTIPLICITY |
|
|
957 | struct ev_loop *loop = default_loop; |
|
|
958 | #endif |
|
|
959 | |
|
|
960 | if (method) |
|
|
961 | postfork = 1; |
430 | } |
962 | } |
431 | |
963 | |
432 | /*****************************************************************************/ |
964 | /*****************************************************************************/ |
433 | |
965 | |
434 | void |
|
|
435 | ev_prefork (void) |
|
|
436 | { |
|
|
437 | /* nop */ |
|
|
438 | } |
|
|
439 | |
|
|
440 | void |
|
|
441 | ev_postfork_parent (void) |
|
|
442 | { |
|
|
443 | /* nop */ |
|
|
444 | } |
|
|
445 | |
|
|
446 | void |
|
|
447 | ev_postfork_child (void) |
|
|
448 | { |
|
|
449 | #if HAVE_EPOLL |
|
|
450 | if (ev_method == EVMETHOD_EPOLL) |
|
|
451 | epoll_postfork_child (); |
|
|
452 | #endif |
|
|
453 | |
|
|
454 | evio_stop (&sigev); |
|
|
455 | close (sigpipe [0]); |
|
|
456 | close (sigpipe [1]); |
|
|
457 | pipe (sigpipe); |
|
|
458 | siginit (); |
|
|
459 | } |
|
|
460 | |
|
|
461 | /*****************************************************************************/ |
|
|
462 | |
|
|
463 | static void |
966 | static int |
464 | fd_reify (void) |
967 | any_pending (EV_P) |
465 | { |
968 | { |
466 | int i; |
969 | int pri; |
467 | |
970 | |
468 | for (i = 0; i < fdchangecnt; ++i) |
971 | for (pri = NUMPRI; pri--; ) |
469 | { |
972 | if (pendingcnt [pri]) |
470 | int fd = fdchanges [i]; |
973 | return 1; |
471 | ANFD *anfd = anfds + fd; |
|
|
472 | struct ev_io *w; |
|
|
473 | |
974 | |
474 | int wev = 0; |
975 | return 0; |
|
|
976 | } |
475 | |
977 | |
476 | for (w = anfd->head; w; w = w->next) |
978 | static void |
477 | wev |= w->events; |
979 | call_pending (EV_P) |
|
|
980 | { |
|
|
981 | int pri; |
478 | |
982 | |
479 | if (anfd->wev != wev) |
983 | for (pri = NUMPRI; pri--; ) |
|
|
984 | while (pendingcnt [pri]) |
480 | { |
985 | { |
481 | method_modify (fd, anfd->wev, wev); |
|
|
482 | anfd->wev = wev; |
|
|
483 | } |
|
|
484 | } |
|
|
485 | |
|
|
486 | fdchangecnt = 0; |
|
|
487 | } |
|
|
488 | |
|
|
489 | static void |
|
|
490 | call_pending (void) |
|
|
491 | { |
|
|
492 | while (pendingcnt) |
|
|
493 | { |
|
|
494 | ANPENDING *p = pendings + --pendingcnt; |
986 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
495 | |
987 | |
496 | if (p->w) |
988 | if (p->w) |
497 | { |
989 | { |
498 | p->w->pending = 0; |
990 | p->w->pending = 0; |
499 | p->w->cb (p->w, p->events); |
991 | EV_CB_INVOKE (p->w, p->events); |
500 | } |
992 | } |
501 | } |
993 | } |
502 | } |
994 | } |
503 | |
995 | |
504 | static void |
996 | static void |
505 | timers_reify (void) |
997 | timers_reify (EV_P) |
506 | { |
998 | { |
507 | while (timercnt && timers [0]->at <= now) |
999 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
508 | { |
1000 | { |
509 | struct ev_timer *w = timers [0]; |
1001 | struct ev_timer *w = timers [0]; |
510 | |
1002 | |
511 | event ((W)w, EV_TIMEOUT); |
1003 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
512 | |
1004 | |
513 | /* first reschedule or stop timer */ |
1005 | /* first reschedule or stop timer */ |
514 | if (w->repeat) |
1006 | if (w->repeat) |
515 | { |
1007 | { |
|
|
1008 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1009 | |
516 | w->at = now + w->repeat; |
1010 | ((WT)w)->at += w->repeat; |
517 | assert (("timer timeout in the past, negative repeat?", w->at > now)); |
1011 | if (((WT)w)->at < mn_now) |
|
|
1012 | ((WT)w)->at = mn_now; |
|
|
1013 | |
518 | downheap ((WT *)timers, timercnt, 0); |
1014 | downheap ((WT *)timers, timercnt, 0); |
519 | } |
1015 | } |
520 | else |
1016 | else |
521 | evtimer_stop (w); /* nonrepeating: stop timer */ |
1017 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
522 | } |
|
|
523 | } |
|
|
524 | |
1018 | |
|
|
1019 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1020 | } |
|
|
1021 | } |
|
|
1022 | |
|
|
1023 | #if EV_PERIODICS |
525 | static void |
1024 | static void |
526 | periodics_reify (void) |
1025 | periodics_reify (EV_P) |
527 | { |
1026 | { |
528 | while (periodiccnt && periodics [0]->at <= ev_now) |
1027 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
529 | { |
1028 | { |
530 | struct ev_periodic *w = periodics [0]; |
1029 | struct ev_periodic *w = periodics [0]; |
531 | |
1030 | |
|
|
1031 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1032 | |
532 | /* first reschedule or stop timer */ |
1033 | /* first reschedule or stop timer */ |
533 | if (w->interval) |
1034 | if (w->reschedule_cb) |
534 | { |
1035 | { |
|
|
1036 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1037 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1038 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1039 | } |
|
|
1040 | else if (w->interval) |
|
|
1041 | { |
535 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1042 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
536 | assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); |
1043 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
537 | downheap ((WT *)periodics, periodiccnt, 0); |
1044 | downheap ((WT *)periodics, periodiccnt, 0); |
538 | } |
1045 | } |
539 | else |
1046 | else |
540 | evperiodic_stop (w); /* nonrepeating: stop timer */ |
1047 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
541 | |
1048 | |
542 | event ((W)w, EV_TIMEOUT); |
1049 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
543 | } |
1050 | } |
544 | } |
1051 | } |
545 | |
1052 | |
546 | static void |
1053 | static void |
547 | periodics_reschedule (ev_tstamp diff) |
1054 | periodics_reschedule (EV_P) |
548 | { |
1055 | { |
549 | int i; |
1056 | int i; |
550 | |
1057 | |
551 | /* adjust periodics after time jump */ |
1058 | /* adjust periodics after time jump */ |
552 | for (i = 0; i < periodiccnt; ++i) |
1059 | for (i = 0; i < periodiccnt; ++i) |
553 | { |
1060 | { |
554 | struct ev_periodic *w = periodics [i]; |
1061 | struct ev_periodic *w = periodics [i]; |
555 | |
1062 | |
|
|
1063 | if (w->reschedule_cb) |
|
|
1064 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
556 | if (w->interval) |
1065 | else if (w->interval) |
|
|
1066 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | /* now rebuild the heap */ |
|
|
1070 | for (i = periodiccnt >> 1; i--; ) |
|
|
1071 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1072 | } |
|
|
1073 | #endif |
|
|
1074 | |
|
|
1075 | inline int |
|
|
1076 | time_update_monotonic (EV_P) |
|
|
1077 | { |
|
|
1078 | mn_now = get_clock (); |
|
|
1079 | |
|
|
1080 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1081 | { |
|
|
1082 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1083 | return 0; |
|
|
1084 | } |
|
|
1085 | else |
|
|
1086 | { |
|
|
1087 | now_floor = mn_now; |
|
|
1088 | ev_rt_now = ev_time (); |
|
|
1089 | return 1; |
|
|
1090 | } |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | static void |
|
|
1094 | time_update (EV_P) |
|
|
1095 | { |
|
|
1096 | int i; |
|
|
1097 | |
|
|
1098 | #if EV_USE_MONOTONIC |
|
|
1099 | if (expect_true (have_monotonic)) |
|
|
1100 | { |
|
|
1101 | if (time_update_monotonic (EV_A)) |
557 | { |
1102 | { |
558 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1103 | ev_tstamp odiff = rtmn_diff; |
559 | |
1104 | |
560 | if (fabs (diff) >= 1e-4) |
1105 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
561 | { |
1106 | { |
562 | evperiodic_stop (w); |
1107 | rtmn_diff = ev_rt_now - mn_now; |
563 | evperiodic_start (w); |
|
|
564 | |
1108 | |
565 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
1109 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
|
|
1110 | return; /* all is well */ |
|
|
1111 | |
|
|
1112 | ev_rt_now = ev_time (); |
|
|
1113 | mn_now = get_clock (); |
|
|
1114 | now_floor = mn_now; |
566 | } |
1115 | } |
|
|
1116 | |
|
|
1117 | # if EV_PERIODICS |
|
|
1118 | periodics_reschedule (EV_A); |
|
|
1119 | # endif |
|
|
1120 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1121 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
567 | } |
1122 | } |
568 | } |
1123 | } |
569 | } |
1124 | else |
570 | |
1125 | #endif |
571 | static void |
1126 | { |
572 | time_update (void) |
|
|
573 | { |
|
|
574 | int i; |
|
|
575 | |
|
|
576 | ev_now = ev_time (); |
1127 | ev_rt_now = ev_time (); |
577 | |
1128 | |
578 | if (have_monotonic) |
1129 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
579 | { |
|
|
580 | ev_tstamp odiff = diff; |
|
|
581 | |
|
|
582 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
583 | { |
1130 | { |
584 | now = get_clock (); |
1131 | #if EV_PERIODICS |
585 | diff = ev_now - now; |
|
|
586 | |
|
|
587 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
588 | return; /* all is well */ |
|
|
589 | |
|
|
590 | ev_now = ev_time (); |
|
|
591 | } |
|
|
592 | |
|
|
593 | periodics_reschedule (diff - odiff); |
|
|
594 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
595 | } |
|
|
596 | else |
|
|
597 | { |
|
|
598 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
|
|
599 | { |
|
|
600 | periodics_reschedule (ev_now - now); |
1132 | periodics_reschedule (EV_A); |
|
|
1133 | #endif |
601 | |
1134 | |
602 | /* adjust timers. this is easy, as the offset is the same for all */ |
1135 | /* adjust timers. this is easy, as the offset is the same for all */ |
603 | for (i = 0; i < timercnt; ++i) |
1136 | for (i = 0; i < timercnt; ++i) |
604 | timers [i]->at += diff; |
1137 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
605 | } |
1138 | } |
606 | |
1139 | |
607 | now = ev_now; |
1140 | mn_now = ev_rt_now; |
608 | } |
1141 | } |
609 | } |
1142 | } |
610 | |
1143 | |
611 | int ev_loop_done; |
1144 | void |
|
|
1145 | ev_ref (EV_P) |
|
|
1146 | { |
|
|
1147 | ++activecnt; |
|
|
1148 | } |
612 | |
1149 | |
|
|
1150 | void |
|
|
1151 | ev_unref (EV_P) |
|
|
1152 | { |
|
|
1153 | --activecnt; |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | static int loop_done; |
|
|
1157 | |
|
|
1158 | void |
613 | void ev_loop (int flags) |
1159 | ev_loop (EV_P_ int flags) |
614 | { |
1160 | { |
615 | double block; |
1161 | double block; |
616 | ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0; |
1162 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
617 | |
1163 | |
618 | do |
1164 | do |
619 | { |
1165 | { |
620 | /* queue check watchers (and execute them) */ |
1166 | /* queue check watchers (and execute them) */ |
621 | if (preparecnt) |
1167 | if (expect_false (preparecnt)) |
622 | { |
1168 | { |
623 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1169 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
624 | call_pending (); |
1170 | call_pending (EV_A); |
625 | } |
1171 | } |
626 | |
1172 | |
|
|
1173 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1174 | if (expect_false (postfork)) |
|
|
1175 | loop_fork (EV_A); |
|
|
1176 | |
627 | /* update fd-related kernel structures */ |
1177 | /* update fd-related kernel structures */ |
628 | fd_reify (); |
1178 | fd_reify (EV_A); |
629 | |
1179 | |
630 | /* calculate blocking time */ |
1180 | /* calculate blocking time */ |
631 | |
1181 | |
632 | /* we only need this for !monotonic clockor timers, but as we basically |
1182 | /* we only need this for !monotonic clock or timers, but as we basically |
633 | always have timers, we just calculate it always */ |
1183 | always have timers, we just calculate it always */ |
|
|
1184 | #if EV_USE_MONOTONIC |
|
|
1185 | if (expect_true (have_monotonic)) |
|
|
1186 | time_update_monotonic (EV_A); |
|
|
1187 | else |
|
|
1188 | #endif |
|
|
1189 | { |
634 | ev_now = ev_time (); |
1190 | ev_rt_now = ev_time (); |
|
|
1191 | mn_now = ev_rt_now; |
|
|
1192 | } |
635 | |
1193 | |
636 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1194 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
637 | block = 0.; |
1195 | block = 0.; |
638 | else |
1196 | else |
639 | { |
1197 | { |
640 | block = MAX_BLOCKTIME; |
1198 | block = MAX_BLOCKTIME; |
641 | |
1199 | |
642 | if (timercnt) |
1200 | if (timercnt) |
643 | { |
1201 | { |
644 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
1202 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
645 | if (block > to) block = to; |
1203 | if (block > to) block = to; |
646 | } |
1204 | } |
647 | |
1205 | |
|
|
1206 | #if EV_PERIODICS |
648 | if (periodiccnt) |
1207 | if (periodiccnt) |
649 | { |
1208 | { |
650 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1209 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
651 | if (block > to) block = to; |
1210 | if (block > to) block = to; |
652 | } |
1211 | } |
|
|
1212 | #endif |
653 | |
1213 | |
654 | if (block < 0.) block = 0.; |
1214 | if (block < 0.) block = 0.; |
655 | } |
1215 | } |
656 | |
1216 | |
657 | method_poll (block); |
1217 | method_poll (EV_A_ block); |
658 | |
1218 | |
659 | /* update ev_now, do magic */ |
1219 | /* update ev_rt_now, do magic */ |
660 | time_update (); |
1220 | time_update (EV_A); |
661 | |
1221 | |
662 | /* queue pending timers and reschedule them */ |
1222 | /* queue pending timers and reschedule them */ |
663 | timers_reify (); /* relative timers called last */ |
1223 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1224 | #if EV_PERIODICS |
664 | periodics_reify (); /* absolute timers called first */ |
1225 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1226 | #endif |
665 | |
1227 | |
666 | /* queue idle watchers unless io or timers are pending */ |
1228 | /* queue idle watchers unless io or timers are pending */ |
667 | if (!pendingcnt) |
1229 | if (idlecnt && !any_pending (EV_A)) |
668 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1230 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
669 | |
1231 | |
670 | /* queue check watchers, to be executed first */ |
1232 | /* queue check watchers, to be executed first */ |
671 | if (checkcnt) |
1233 | if (checkcnt) |
672 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1234 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
673 | |
1235 | |
674 | call_pending (); |
1236 | call_pending (EV_A); |
675 | } |
1237 | } |
676 | while (!ev_loop_done); |
1238 | while (activecnt && !loop_done); |
677 | |
1239 | |
678 | if (ev_loop_done != 2) |
1240 | if (loop_done != 2) |
679 | ev_loop_done = 0; |
1241 | loop_done = 0; |
|
|
1242 | } |
|
|
1243 | |
|
|
1244 | void |
|
|
1245 | ev_unloop (EV_P_ int how) |
|
|
1246 | { |
|
|
1247 | loop_done = how; |
680 | } |
1248 | } |
681 | |
1249 | |
682 | /*****************************************************************************/ |
1250 | /*****************************************************************************/ |
683 | |
1251 | |
684 | static void |
1252 | inline void |
685 | wlist_add (WL *head, WL elem) |
1253 | wlist_add (WL *head, WL elem) |
686 | { |
1254 | { |
687 | elem->next = *head; |
1255 | elem->next = *head; |
688 | *head = elem; |
1256 | *head = elem; |
689 | } |
1257 | } |
690 | |
1258 | |
691 | static void |
1259 | inline void |
692 | wlist_del (WL *head, WL elem) |
1260 | wlist_del (WL *head, WL elem) |
693 | { |
1261 | { |
694 | while (*head) |
1262 | while (*head) |
695 | { |
1263 | { |
696 | if (*head == elem) |
1264 | if (*head == elem) |
… | |
… | |
701 | |
1269 | |
702 | head = &(*head)->next; |
1270 | head = &(*head)->next; |
703 | } |
1271 | } |
704 | } |
1272 | } |
705 | |
1273 | |
706 | static void |
1274 | inline void |
707 | ev_clear (W w) |
1275 | ev_clear_pending (EV_P_ W w) |
708 | { |
1276 | { |
709 | if (w->pending) |
1277 | if (w->pending) |
710 | { |
1278 | { |
711 | pendings [w->pending - 1].w = 0; |
1279 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
712 | w->pending = 0; |
1280 | w->pending = 0; |
713 | } |
1281 | } |
714 | } |
1282 | } |
715 | |
1283 | |
716 | static void |
1284 | inline void |
717 | ev_start (W w, int active) |
1285 | ev_start (EV_P_ W w, int active) |
718 | { |
1286 | { |
|
|
1287 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
1288 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1289 | |
719 | w->active = active; |
1290 | w->active = active; |
|
|
1291 | ev_ref (EV_A); |
720 | } |
1292 | } |
721 | |
1293 | |
722 | static void |
1294 | inline void |
723 | ev_stop (W w) |
1295 | ev_stop (EV_P_ W w) |
724 | { |
1296 | { |
|
|
1297 | ev_unref (EV_A); |
725 | w->active = 0; |
1298 | w->active = 0; |
726 | } |
1299 | } |
727 | |
1300 | |
728 | /*****************************************************************************/ |
1301 | /*****************************************************************************/ |
729 | |
1302 | |
730 | void |
1303 | void |
731 | evio_start (struct ev_io *w) |
1304 | ev_io_start (EV_P_ struct ev_io *w) |
732 | { |
1305 | { |
|
|
1306 | int fd = w->fd; |
|
|
1307 | |
733 | if (ev_is_active (w)) |
1308 | if (ev_is_active (w)) |
734 | return; |
1309 | return; |
735 | |
1310 | |
736 | int fd = w->fd; |
1311 | assert (("ev_io_start called with negative fd", fd >= 0)); |
737 | |
1312 | |
738 | ev_start ((W)w, 1); |
1313 | ev_start (EV_A_ (W)w, 1); |
739 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1314 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
740 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1315 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
741 | |
1316 | |
742 | ++fdchangecnt; |
1317 | fd_change (EV_A_ fd); |
743 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
744 | fdchanges [fdchangecnt - 1] = fd; |
|
|
745 | |
|
|
746 | if (w->fd == 9) |
|
|
747 | printf ("start %p:%x\n", w, w->events);//D |
|
|
748 | } |
1318 | } |
749 | |
1319 | |
750 | void |
1320 | void |
751 | evio_stop (struct ev_io *w) |
1321 | ev_io_stop (EV_P_ struct ev_io *w) |
752 | { |
1322 | { |
753 | if (w->fd == 9) |
1323 | ev_clear_pending (EV_A_ (W)w); |
754 | printf ("stop %p:%x\n", w, w->events);//D |
|
|
755 | ev_clear ((W)w); |
|
|
756 | if (!ev_is_active (w)) |
1324 | if (!ev_is_active (w)) |
757 | return; |
1325 | return; |
758 | |
1326 | |
|
|
1327 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1328 | |
759 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1329 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
760 | ev_stop ((W)w); |
1330 | ev_stop (EV_A_ (W)w); |
761 | |
1331 | |
762 | ++fdchangecnt; |
1332 | fd_change (EV_A_ w->fd); |
763 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
764 | fdchanges [fdchangecnt - 1] = w->fd; |
|
|
765 | } |
1333 | } |
766 | |
1334 | |
767 | void |
1335 | void |
768 | evtimer_start (struct ev_timer *w) |
1336 | ev_timer_start (EV_P_ struct ev_timer *w) |
769 | { |
1337 | { |
770 | if (ev_is_active (w)) |
1338 | if (ev_is_active (w)) |
771 | return; |
1339 | return; |
772 | |
1340 | |
773 | w->at += now; |
1341 | ((WT)w)->at += mn_now; |
774 | |
1342 | |
775 | assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); |
1343 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
776 | |
1344 | |
777 | ev_start ((W)w, ++timercnt); |
1345 | ev_start (EV_A_ (W)w, ++timercnt); |
778 | array_needsize (timers, timermax, timercnt, ); |
1346 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
779 | timers [timercnt - 1] = w; |
1347 | timers [timercnt - 1] = w; |
780 | upheap ((WT *)timers, timercnt - 1); |
1348 | upheap ((WT *)timers, timercnt - 1); |
781 | } |
|
|
782 | |
1349 | |
|
|
1350 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1351 | } |
|
|
1352 | |
783 | void |
1353 | void |
784 | evtimer_stop (struct ev_timer *w) |
1354 | ev_timer_stop (EV_P_ struct ev_timer *w) |
785 | { |
1355 | { |
786 | ev_clear ((W)w); |
1356 | ev_clear_pending (EV_A_ (W)w); |
787 | if (!ev_is_active (w)) |
1357 | if (!ev_is_active (w)) |
788 | return; |
1358 | return; |
789 | |
1359 | |
|
|
1360 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1361 | |
790 | if (w->active < timercnt--) |
1362 | if (((W)w)->active < timercnt--) |
791 | { |
1363 | { |
792 | timers [w->active - 1] = timers [timercnt]; |
1364 | timers [((W)w)->active - 1] = timers [timercnt]; |
793 | downheap ((WT *)timers, timercnt, w->active - 1); |
1365 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
794 | } |
1366 | } |
795 | |
1367 | |
796 | w->at = w->repeat; |
1368 | ((WT)w)->at -= mn_now; |
797 | |
1369 | |
798 | ev_stop ((W)w); |
1370 | ev_stop (EV_A_ (W)w); |
799 | } |
1371 | } |
800 | |
1372 | |
801 | void |
1373 | void |
802 | evtimer_again (struct ev_timer *w) |
1374 | ev_timer_again (EV_P_ struct ev_timer *w) |
803 | { |
1375 | { |
804 | if (ev_is_active (w)) |
1376 | if (ev_is_active (w)) |
805 | { |
1377 | { |
806 | if (w->repeat) |
1378 | if (w->repeat) |
807 | { |
1379 | { |
808 | w->at = now + w->repeat; |
1380 | ((WT)w)->at = mn_now + w->repeat; |
809 | downheap ((WT *)timers, timercnt, w->active - 1); |
1381 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
810 | } |
1382 | } |
811 | else |
1383 | else |
812 | evtimer_stop (w); |
1384 | ev_timer_stop (EV_A_ w); |
813 | } |
1385 | } |
814 | else if (w->repeat) |
1386 | else if (w->repeat) |
815 | evtimer_start (w); |
1387 | ev_timer_start (EV_A_ w); |
816 | } |
1388 | } |
817 | |
1389 | |
|
|
1390 | #if EV_PERIODICS |
818 | void |
1391 | void |
819 | evperiodic_start (struct ev_periodic *w) |
1392 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
820 | { |
1393 | { |
821 | if (ev_is_active (w)) |
1394 | if (ev_is_active (w)) |
822 | return; |
1395 | return; |
823 | |
1396 | |
824 | assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); |
1397 | if (w->reschedule_cb) |
825 | |
1398 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1399 | else if (w->interval) |
|
|
1400 | { |
|
|
1401 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
826 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1402 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
827 | if (w->interval) |
|
|
828 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1403 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1404 | } |
829 | |
1405 | |
830 | ev_start ((W)w, ++periodiccnt); |
1406 | ev_start (EV_A_ (W)w, ++periodiccnt); |
831 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1407 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
832 | periodics [periodiccnt - 1] = w; |
1408 | periodics [periodiccnt - 1] = w; |
833 | upheap ((WT *)periodics, periodiccnt - 1); |
1409 | upheap ((WT *)periodics, periodiccnt - 1); |
834 | } |
|
|
835 | |
1410 | |
|
|
1411 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1412 | } |
|
|
1413 | |
836 | void |
1414 | void |
837 | evperiodic_stop (struct ev_periodic *w) |
1415 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
838 | { |
1416 | { |
839 | ev_clear ((W)w); |
1417 | ev_clear_pending (EV_A_ (W)w); |
840 | if (!ev_is_active (w)) |
1418 | if (!ev_is_active (w)) |
841 | return; |
1419 | return; |
842 | |
1420 | |
|
|
1421 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1422 | |
843 | if (w->active < periodiccnt--) |
1423 | if (((W)w)->active < periodiccnt--) |
844 | { |
1424 | { |
845 | periodics [w->active - 1] = periodics [periodiccnt]; |
1425 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
846 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1426 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
847 | } |
1427 | } |
848 | |
1428 | |
849 | ev_stop ((W)w); |
1429 | ev_stop (EV_A_ (W)w); |
850 | } |
1430 | } |
851 | |
1431 | |
852 | void |
1432 | void |
853 | evsignal_start (struct ev_signal *w) |
1433 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1434 | { |
|
|
1435 | /* TODO: use adjustheap and recalculation */ |
|
|
1436 | ev_periodic_stop (EV_A_ w); |
|
|
1437 | ev_periodic_start (EV_A_ w); |
|
|
1438 | } |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | void |
|
|
1442 | ev_idle_start (EV_P_ struct ev_idle *w) |
854 | { |
1443 | { |
855 | if (ev_is_active (w)) |
1444 | if (ev_is_active (w)) |
856 | return; |
1445 | return; |
857 | |
1446 | |
|
|
1447 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1448 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1449 | idles [idlecnt - 1] = w; |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | void |
|
|
1453 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1454 | { |
|
|
1455 | ev_clear_pending (EV_A_ (W)w); |
|
|
1456 | if (!ev_is_active (w)) |
|
|
1457 | return; |
|
|
1458 | |
|
|
1459 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1460 | ev_stop (EV_A_ (W)w); |
|
|
1461 | } |
|
|
1462 | |
|
|
1463 | void |
|
|
1464 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1465 | { |
|
|
1466 | if (ev_is_active (w)) |
|
|
1467 | return; |
|
|
1468 | |
|
|
1469 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1470 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1471 | prepares [preparecnt - 1] = w; |
|
|
1472 | } |
|
|
1473 | |
|
|
1474 | void |
|
|
1475 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1476 | { |
|
|
1477 | ev_clear_pending (EV_A_ (W)w); |
|
|
1478 | if (!ev_is_active (w)) |
|
|
1479 | return; |
|
|
1480 | |
|
|
1481 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1482 | ev_stop (EV_A_ (W)w); |
|
|
1483 | } |
|
|
1484 | |
|
|
1485 | void |
|
|
1486 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1487 | { |
|
|
1488 | if (ev_is_active (w)) |
|
|
1489 | return; |
|
|
1490 | |
|
|
1491 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1492 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1493 | checks [checkcnt - 1] = w; |
|
|
1494 | } |
|
|
1495 | |
|
|
1496 | void |
|
|
1497 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1498 | { |
|
|
1499 | ev_clear_pending (EV_A_ (W)w); |
|
|
1500 | if (!ev_is_active (w)) |
|
|
1501 | return; |
|
|
1502 | |
|
|
1503 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1504 | ev_stop (EV_A_ (W)w); |
|
|
1505 | } |
|
|
1506 | |
|
|
1507 | #ifndef SA_RESTART |
|
|
1508 | # define SA_RESTART 0 |
|
|
1509 | #endif |
|
|
1510 | |
|
|
1511 | void |
|
|
1512 | ev_signal_start (EV_P_ struct ev_signal *w) |
|
|
1513 | { |
|
|
1514 | #if EV_MULTIPLICITY |
|
|
1515 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1516 | #endif |
|
|
1517 | if (ev_is_active (w)) |
|
|
1518 | return; |
|
|
1519 | |
|
|
1520 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1521 | |
858 | ev_start ((W)w, 1); |
1522 | ev_start (EV_A_ (W)w, 1); |
859 | array_needsize (signals, signalmax, w->signum, signals_init); |
1523 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
860 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1524 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
861 | |
1525 | |
862 | if (!w->next) |
1526 | if (!((WL)w)->next) |
863 | { |
1527 | { |
|
|
1528 | #if _WIN32 |
|
|
1529 | signal (w->signum, sighandler); |
|
|
1530 | #else |
864 | struct sigaction sa; |
1531 | struct sigaction sa; |
865 | sa.sa_handler = sighandler; |
1532 | sa.sa_handler = sighandler; |
866 | sigfillset (&sa.sa_mask); |
1533 | sigfillset (&sa.sa_mask); |
867 | sa.sa_flags = 0; |
1534 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
868 | sigaction (w->signum, &sa, 0); |
1535 | sigaction (w->signum, &sa, 0); |
|
|
1536 | #endif |
869 | } |
1537 | } |
870 | } |
1538 | } |
871 | |
1539 | |
872 | void |
1540 | void |
873 | evsignal_stop (struct ev_signal *w) |
1541 | ev_signal_stop (EV_P_ struct ev_signal *w) |
874 | { |
1542 | { |
875 | ev_clear ((W)w); |
1543 | ev_clear_pending (EV_A_ (W)w); |
876 | if (!ev_is_active (w)) |
1544 | if (!ev_is_active (w)) |
877 | return; |
1545 | return; |
878 | |
1546 | |
879 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1547 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
880 | ev_stop ((W)w); |
1548 | ev_stop (EV_A_ (W)w); |
881 | |
1549 | |
882 | if (!signals [w->signum - 1].head) |
1550 | if (!signals [w->signum - 1].head) |
883 | signal (w->signum, SIG_DFL); |
1551 | signal (w->signum, SIG_DFL); |
884 | } |
1552 | } |
885 | |
1553 | |
886 | void evidle_start (struct ev_idle *w) |
1554 | void |
|
|
1555 | ev_child_start (EV_P_ struct ev_child *w) |
887 | { |
1556 | { |
|
|
1557 | #if EV_MULTIPLICITY |
|
|
1558 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1559 | #endif |
888 | if (ev_is_active (w)) |
1560 | if (ev_is_active (w)) |
889 | return; |
1561 | return; |
890 | |
1562 | |
891 | ev_start ((W)w, ++idlecnt); |
|
|
892 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
893 | idles [idlecnt - 1] = w; |
|
|
894 | } |
|
|
895 | |
|
|
896 | void evidle_stop (struct ev_idle *w) |
|
|
897 | { |
|
|
898 | ev_clear ((W)w); |
|
|
899 | if (ev_is_active (w)) |
|
|
900 | return; |
|
|
901 | |
|
|
902 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
903 | ev_stop ((W)w); |
|
|
904 | } |
|
|
905 | |
|
|
906 | void evprepare_start (struct ev_prepare *w) |
|
|
907 | { |
|
|
908 | if (ev_is_active (w)) |
|
|
909 | return; |
|
|
910 | |
|
|
911 | ev_start ((W)w, ++preparecnt); |
|
|
912 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
913 | prepares [preparecnt - 1] = w; |
|
|
914 | } |
|
|
915 | |
|
|
916 | void evprepare_stop (struct ev_prepare *w) |
|
|
917 | { |
|
|
918 | ev_clear ((W)w); |
|
|
919 | if (ev_is_active (w)) |
|
|
920 | return; |
|
|
921 | |
|
|
922 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
923 | ev_stop ((W)w); |
|
|
924 | } |
|
|
925 | |
|
|
926 | void evcheck_start (struct ev_check *w) |
|
|
927 | { |
|
|
928 | if (ev_is_active (w)) |
|
|
929 | return; |
|
|
930 | |
|
|
931 | ev_start ((W)w, ++checkcnt); |
|
|
932 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
933 | checks [checkcnt - 1] = w; |
|
|
934 | } |
|
|
935 | |
|
|
936 | void evcheck_stop (struct ev_check *w) |
|
|
937 | { |
|
|
938 | ev_clear ((W)w); |
|
|
939 | if (ev_is_active (w)) |
|
|
940 | return; |
|
|
941 | |
|
|
942 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
943 | ev_stop ((W)w); |
|
|
944 | } |
|
|
945 | |
|
|
946 | void evchild_start (struct ev_child *w) |
|
|
947 | { |
|
|
948 | if (ev_is_active (w)) |
|
|
949 | return; |
|
|
950 | |
|
|
951 | ev_start ((W)w, 1); |
1563 | ev_start (EV_A_ (W)w, 1); |
952 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1564 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
953 | } |
1565 | } |
954 | |
1566 | |
|
|
1567 | void |
955 | void evchild_stop (struct ev_child *w) |
1568 | ev_child_stop (EV_P_ struct ev_child *w) |
956 | { |
1569 | { |
957 | ev_clear ((W)w); |
1570 | ev_clear_pending (EV_A_ (W)w); |
958 | if (ev_is_active (w)) |
1571 | if (!ev_is_active (w)) |
959 | return; |
1572 | return; |
960 | |
1573 | |
961 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1574 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
962 | ev_stop ((W)w); |
1575 | ev_stop (EV_A_ (W)w); |
963 | } |
1576 | } |
964 | |
1577 | |
965 | /*****************************************************************************/ |
1578 | /*****************************************************************************/ |
966 | |
1579 | |
967 | struct ev_once |
1580 | struct ev_once |
… | |
… | |
971 | void (*cb)(int revents, void *arg); |
1584 | void (*cb)(int revents, void *arg); |
972 | void *arg; |
1585 | void *arg; |
973 | }; |
1586 | }; |
974 | |
1587 | |
975 | static void |
1588 | static void |
976 | once_cb (struct ev_once *once, int revents) |
1589 | once_cb (EV_P_ struct ev_once *once, int revents) |
977 | { |
1590 | { |
978 | void (*cb)(int revents, void *arg) = once->cb; |
1591 | void (*cb)(int revents, void *arg) = once->cb; |
979 | void *arg = once->arg; |
1592 | void *arg = once->arg; |
980 | |
1593 | |
981 | evio_stop (&once->io); |
1594 | ev_io_stop (EV_A_ &once->io); |
982 | evtimer_stop (&once->to); |
1595 | ev_timer_stop (EV_A_ &once->to); |
983 | free (once); |
1596 | ev_free (once); |
984 | |
1597 | |
985 | cb (revents, arg); |
1598 | cb (revents, arg); |
986 | } |
1599 | } |
987 | |
1600 | |
988 | static void |
1601 | static void |
989 | once_cb_io (struct ev_io *w, int revents) |
1602 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
990 | { |
1603 | { |
991 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1604 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
992 | } |
1605 | } |
993 | |
1606 | |
994 | static void |
1607 | static void |
995 | once_cb_to (struct ev_timer *w, int revents) |
1608 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
996 | { |
1609 | { |
997 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1610 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
998 | } |
1611 | } |
999 | |
1612 | |
1000 | void |
1613 | void |
1001 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1614 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1002 | { |
1615 | { |
1003 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1616 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1004 | |
1617 | |
1005 | if (!once) |
1618 | if (!once) |
1006 | cb (EV_ERROR, arg); |
1619 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1007 | else |
1620 | else |
1008 | { |
1621 | { |
1009 | once->cb = cb; |
1622 | once->cb = cb; |
1010 | once->arg = arg; |
1623 | once->arg = arg; |
1011 | |
1624 | |
1012 | evw_init (&once->io, once_cb_io); |
1625 | ev_init (&once->io, once_cb_io); |
1013 | |
|
|
1014 | if (fd >= 0) |
1626 | if (fd >= 0) |
1015 | { |
1627 | { |
1016 | evio_set (&once->io, fd, events); |
1628 | ev_io_set (&once->io, fd, events); |
1017 | evio_start (&once->io); |
1629 | ev_io_start (EV_A_ &once->io); |
1018 | } |
1630 | } |
1019 | |
1631 | |
1020 | evw_init (&once->to, once_cb_to); |
1632 | ev_init (&once->to, once_cb_to); |
1021 | |
|
|
1022 | if (timeout >= 0.) |
1633 | if (timeout >= 0.) |
1023 | { |
1634 | { |
1024 | evtimer_set (&once->to, timeout, 0.); |
1635 | ev_timer_set (&once->to, timeout, 0.); |
1025 | evtimer_start (&once->to); |
1636 | ev_timer_start (EV_A_ &once->to); |
1026 | } |
1637 | } |
1027 | } |
1638 | } |
1028 | } |
1639 | } |
1029 | |
1640 | |
1030 | /*****************************************************************************/ |
1641 | #ifdef __cplusplus |
1031 | |
|
|
1032 | #if 0 |
|
|
1033 | |
|
|
1034 | struct ev_io wio; |
|
|
1035 | |
|
|
1036 | static void |
|
|
1037 | sin_cb (struct ev_io *w, int revents) |
|
|
1038 | { |
|
|
1039 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1040 | } |
1642 | } |
1041 | |
|
|
1042 | static void |
|
|
1043 | ocb (struct ev_timer *w, int revents) |
|
|
1044 | { |
|
|
1045 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1046 | evtimer_stop (w); |
|
|
1047 | evtimer_start (w); |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | static void |
|
|
1051 | scb (struct ev_signal *w, int revents) |
|
|
1052 | { |
|
|
1053 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1054 | evio_stop (&wio); |
|
|
1055 | evio_start (&wio); |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | static void |
|
|
1059 | gcb (struct ev_signal *w, int revents) |
|
|
1060 | { |
|
|
1061 | fprintf (stderr, "generic %x\n", revents); |
|
|
1062 | |
|
|
1063 | } |
|
|
1064 | |
|
|
1065 | int main (void) |
|
|
1066 | { |
|
|
1067 | ev_init (0); |
|
|
1068 | |
|
|
1069 | evio_init (&wio, sin_cb, 0, EV_READ); |
|
|
1070 | evio_start (&wio); |
|
|
1071 | |
|
|
1072 | struct ev_timer t[10000]; |
|
|
1073 | |
|
|
1074 | #if 0 |
|
|
1075 | int i; |
|
|
1076 | for (i = 0; i < 10000; ++i) |
|
|
1077 | { |
|
|
1078 | struct ev_timer *w = t + i; |
|
|
1079 | evw_init (w, ocb, i); |
|
|
1080 | evtimer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1081 | evtimer_start (w); |
|
|
1082 | if (drand48 () < 0.5) |
|
|
1083 | evtimer_stop (w); |
|
|
1084 | } |
|
|
1085 | #endif |
1643 | #endif |
1086 | |
1644 | |
1087 | struct ev_timer t1; |
|
|
1088 | evtimer_init (&t1, ocb, 5, 10); |
|
|
1089 | evtimer_start (&t1); |
|
|
1090 | |
|
|
1091 | struct ev_signal sig; |
|
|
1092 | evsignal_init (&sig, scb, SIGQUIT); |
|
|
1093 | evsignal_start (&sig); |
|
|
1094 | |
|
|
1095 | struct ev_check cw; |
|
|
1096 | evcheck_init (&cw, gcb); |
|
|
1097 | evcheck_start (&cw); |
|
|
1098 | |
|
|
1099 | struct ev_idle iw; |
|
|
1100 | evidle_init (&iw, gcb); |
|
|
1101 | evidle_start (&iw); |
|
|
1102 | |
|
|
1103 | ev_loop (0); |
|
|
1104 | |
|
|
1105 | return 0; |
|
|
1106 | } |
|
|
1107 | |
|
|
1108 | #endif |
|
|
1109 | |
|
|
1110 | |
|
|
1111 | |
|
|
1112 | |
|
|