… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
|
|
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
31 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
37 | # include "config.h" |
|
|
38 | |
|
|
39 | # if HAVE_CLOCK_GETTIME |
|
|
40 | # ifndef EV_USE_MONOTONIC |
|
|
41 | # define EV_USE_MONOTONIC 1 |
|
|
42 | # endif |
|
|
43 | # ifndef EV_USE_REALTIME |
|
|
44 | # define EV_USE_REALTIME 1 |
|
|
45 | # endif |
|
|
46 | # endif |
|
|
47 | |
|
|
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
|
|
49 | # define EV_USE_SELECT 1 |
|
|
50 | # endif |
|
|
51 | |
|
|
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
|
|
53 | # define EV_USE_POLL 1 |
|
|
54 | # endif |
|
|
55 | |
|
|
56 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
|
|
57 | # define EV_USE_EPOLL 1 |
|
|
58 | # endif |
|
|
59 | |
|
|
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
|
|
61 | # define EV_USE_KQUEUE 1 |
|
|
62 | # endif |
|
|
63 | |
33 | #endif |
64 | #endif |
34 | |
65 | |
35 | #include <math.h> |
66 | #include <math.h> |
36 | #include <stdlib.h> |
67 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
68 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
69 | #include <stddef.h> |
41 | |
70 | |
42 | #include <stdio.h> |
71 | #include <stdio.h> |
43 | |
72 | |
44 | #include <assert.h> |
73 | #include <assert.h> |
45 | #include <errno.h> |
74 | #include <errno.h> |
46 | #include <sys/types.h> |
75 | #include <sys/types.h> |
|
|
76 | #include <time.h> |
|
|
77 | |
|
|
78 | #include <signal.h> |
|
|
79 | |
47 | #ifndef WIN32 |
80 | #ifndef _WIN32 |
|
|
81 | # include <unistd.h> |
|
|
82 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
83 | # include <sys/wait.h> |
|
|
84 | #else |
|
|
85 | # define WIN32_LEAN_AND_MEAN |
|
|
86 | # include <windows.h> |
|
|
87 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
88 | # define EV_SELECT_IS_WINSOCKET 1 |
49 | #endif |
89 | # endif |
50 | #include <sys/time.h> |
90 | #endif |
51 | #include <time.h> |
|
|
52 | |
91 | |
53 | /**/ |
92 | /**/ |
54 | |
93 | |
55 | #ifndef EV_USE_MONOTONIC |
94 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
95 | # define EV_USE_MONOTONIC 1 |
57 | #endif |
96 | #endif |
58 | |
97 | |
59 | #ifndef EV_USE_SELECT |
98 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
99 | # define EV_USE_SELECT 1 |
|
|
100 | # define EV_SELECT_USE_FD_SET 1 |
61 | #endif |
101 | #endif |
62 | |
102 | |
63 | #ifndef EV_USEV_POLL |
103 | #ifndef EV_USE_POLL |
64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
104 | # ifdef _WIN32 |
|
|
105 | # define EV_USE_POLL 0 |
|
|
106 | # else |
|
|
107 | # define EV_USE_POLL 1 |
|
|
108 | # endif |
65 | #endif |
109 | #endif |
66 | |
110 | |
67 | #ifndef EV_USE_EPOLL |
111 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
112 | # define EV_USE_EPOLL 0 |
69 | #endif |
113 | #endif |
… | |
… | |
75 | #ifndef EV_USE_REALTIME |
119 | #ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 1 |
120 | # define EV_USE_REALTIME 1 |
77 | #endif |
121 | #endif |
78 | |
122 | |
79 | /**/ |
123 | /**/ |
|
|
124 | |
|
|
125 | /* darwin simply cannot be helped */ |
|
|
126 | #ifdef __APPLE__ |
|
|
127 | # undef EV_USE_POLL |
|
|
128 | # undef EV_USE_KQUEUE |
|
|
129 | #endif |
80 | |
130 | |
81 | #ifndef CLOCK_MONOTONIC |
131 | #ifndef CLOCK_MONOTONIC |
82 | # undef EV_USE_MONOTONIC |
132 | # undef EV_USE_MONOTONIC |
83 | # define EV_USE_MONOTONIC 0 |
133 | # define EV_USE_MONOTONIC 0 |
84 | #endif |
134 | #endif |
85 | |
135 | |
86 | #ifndef CLOCK_REALTIME |
136 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
137 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
138 | # define EV_USE_REALTIME 0 |
|
|
139 | #endif |
|
|
140 | |
|
|
141 | #if EV_SELECT_IS_WINSOCKET |
|
|
142 | # include <winsock.h> |
89 | #endif |
143 | #endif |
90 | |
144 | |
91 | /**/ |
145 | /**/ |
92 | |
146 | |
93 | #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) */ |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
148 | #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 */ |
149 | #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 */ |
150 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
97 | |
151 | |
|
|
152 | #ifdef EV_H |
|
|
153 | # include EV_H |
|
|
154 | #else |
98 | #include "ev.h" |
155 | # include "ev.h" |
|
|
156 | #endif |
99 | |
157 | |
100 | #if __GNUC__ >= 3 |
158 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
159 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
102 | # define inline inline |
160 | # define inline inline |
103 | #else |
161 | #else |
… | |
… | |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
167 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
168 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
169 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
170 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
113 | |
171 | |
|
|
172 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
173 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
174 | |
114 | typedef struct ev_watcher *W; |
175 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
176 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
177 | typedef struct ev_watcher_time *WT; |
117 | |
178 | |
118 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
179 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
119 | |
180 | |
|
|
181 | #ifdef _WIN32 |
|
|
182 | # include "ev_win32.c" |
|
|
183 | #endif |
|
|
184 | |
120 | /*****************************************************************************/ |
185 | /*****************************************************************************/ |
121 | |
186 | |
|
|
187 | static void (*syserr_cb)(const char *msg); |
|
|
188 | |
|
|
189 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
190 | { |
|
|
191 | syserr_cb = cb; |
|
|
192 | } |
|
|
193 | |
|
|
194 | static void |
|
|
195 | syserr (const char *msg) |
|
|
196 | { |
|
|
197 | if (!msg) |
|
|
198 | msg = "(libev) system error"; |
|
|
199 | |
|
|
200 | if (syserr_cb) |
|
|
201 | syserr_cb (msg); |
|
|
202 | else |
|
|
203 | { |
|
|
204 | perror (msg); |
|
|
205 | abort (); |
|
|
206 | } |
|
|
207 | } |
|
|
208 | |
|
|
209 | static void *(*alloc)(void *ptr, long size); |
|
|
210 | |
|
|
211 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
212 | { |
|
|
213 | alloc = cb; |
|
|
214 | } |
|
|
215 | |
|
|
216 | static void * |
|
|
217 | ev_realloc (void *ptr, long size) |
|
|
218 | { |
|
|
219 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
220 | |
|
|
221 | if (!ptr && size) |
|
|
222 | { |
|
|
223 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
224 | abort (); |
|
|
225 | } |
|
|
226 | |
|
|
227 | return ptr; |
|
|
228 | } |
|
|
229 | |
|
|
230 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
231 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
232 | |
|
|
233 | /*****************************************************************************/ |
|
|
234 | |
122 | typedef struct |
235 | typedef struct |
123 | { |
236 | { |
124 | struct ev_watcher_list *head; |
237 | WL head; |
125 | unsigned char events; |
238 | unsigned char events; |
126 | unsigned char reify; |
239 | unsigned char reify; |
|
|
240 | #if EV_SELECT_IS_WINSOCKET |
|
|
241 | SOCKET handle; |
|
|
242 | #endif |
127 | } ANFD; |
243 | } ANFD; |
128 | |
244 | |
129 | typedef struct |
245 | typedef struct |
130 | { |
246 | { |
131 | W w; |
247 | W w; |
132 | int events; |
248 | int events; |
133 | } ANPENDING; |
249 | } ANPENDING; |
134 | |
250 | |
135 | #ifdef EV_MULTIPLICITY |
251 | #if EV_MULTIPLICITY |
136 | |
252 | |
137 | struct ev_loop |
253 | struct ev_loop |
138 | { |
254 | { |
|
|
255 | ev_tstamp ev_rt_now; |
|
|
256 | #define ev_rt_now ((loop)->ev_rt_now) |
139 | # define VAR(name,decl) decl; |
257 | #define VAR(name,decl) decl; |
140 | # include "ev_vars.h" |
258 | #include "ev_vars.h" |
141 | }; |
|
|
142 | # undef VAR |
259 | #undef VAR |
|
|
260 | }; |
143 | # include "ev_wrap.h" |
261 | #include "ev_wrap.h" |
|
|
262 | |
|
|
263 | struct ev_loop default_loop_struct; |
|
|
264 | static struct ev_loop *default_loop; |
144 | |
265 | |
145 | #else |
266 | #else |
146 | |
267 | |
|
|
268 | ev_tstamp ev_rt_now; |
147 | # define VAR(name,decl) static decl; |
269 | #define VAR(name,decl) static decl; |
148 | # include "ev_vars.h" |
270 | #include "ev_vars.h" |
149 | # undef VAR |
271 | #undef VAR |
|
|
272 | |
|
|
273 | static int default_loop; |
150 | |
274 | |
151 | #endif |
275 | #endif |
152 | |
276 | |
153 | /*****************************************************************************/ |
277 | /*****************************************************************************/ |
154 | |
278 | |
155 | inline ev_tstamp |
279 | ev_tstamp |
156 | ev_time (void) |
280 | ev_time (void) |
157 | { |
281 | { |
158 | #if EV_USE_REALTIME |
282 | #if EV_USE_REALTIME |
159 | struct timespec ts; |
283 | struct timespec ts; |
160 | clock_gettime (CLOCK_REALTIME, &ts); |
284 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
179 | #endif |
303 | #endif |
180 | |
304 | |
181 | return ev_time (); |
305 | return ev_time (); |
182 | } |
306 | } |
183 | |
307 | |
|
|
308 | #if EV_MULTIPLICITY |
184 | ev_tstamp |
309 | ev_tstamp |
185 | ev_now (EV_P) |
310 | ev_now (EV_P) |
186 | { |
311 | { |
187 | return rt_now; |
312 | return ev_rt_now; |
188 | } |
313 | } |
|
|
314 | #endif |
189 | |
315 | |
190 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
316 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
191 | |
317 | |
192 | #define array_needsize(base,cur,cnt,init) \ |
318 | #define array_needsize(type,base,cur,cnt,init) \ |
193 | if (expect_false ((cnt) > cur)) \ |
319 | if (expect_false ((cnt) > cur)) \ |
194 | { \ |
320 | { \ |
195 | int newcnt = cur; \ |
321 | int newcnt = cur; \ |
196 | do \ |
322 | do \ |
197 | { \ |
323 | { \ |
198 | newcnt = array_roundsize (base, newcnt << 1); \ |
324 | newcnt = array_roundsize (type, newcnt << 1); \ |
199 | } \ |
325 | } \ |
200 | while ((cnt) > newcnt); \ |
326 | while ((cnt) > newcnt); \ |
201 | \ |
327 | \ |
202 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
328 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
203 | init (base + cur, newcnt - cur); \ |
329 | init (base + cur, newcnt - cur); \ |
204 | cur = newcnt; \ |
330 | cur = newcnt; \ |
205 | } |
331 | } |
|
|
332 | |
|
|
333 | #define array_slim(type,stem) \ |
|
|
334 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
335 | { \ |
|
|
336 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
337 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
338 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
339 | } |
|
|
340 | |
|
|
341 | #define array_free(stem, idx) \ |
|
|
342 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
206 | |
343 | |
207 | /*****************************************************************************/ |
344 | /*****************************************************************************/ |
208 | |
345 | |
209 | static void |
346 | static void |
210 | anfds_init (ANFD *base, int count) |
347 | anfds_init (ANFD *base, int count) |
… | |
… | |
217 | |
354 | |
218 | ++base; |
355 | ++base; |
219 | } |
356 | } |
220 | } |
357 | } |
221 | |
358 | |
222 | static void |
359 | void |
223 | event (EV_P_ W w, int events) |
360 | ev_feed_event (EV_P_ void *w, int revents) |
224 | { |
361 | { |
|
|
362 | W w_ = (W)w; |
|
|
363 | |
225 | if (w->pending) |
364 | if (w_->pending) |
226 | { |
365 | { |
227 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
366 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
228 | return; |
367 | return; |
229 | } |
368 | } |
230 | |
369 | |
231 | w->pending = ++pendingcnt [ABSPRI (w)]; |
370 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
232 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
371 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
233 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
372 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
234 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
373 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
235 | } |
374 | } |
236 | |
375 | |
237 | static void |
376 | static void |
238 | queue_events (EV_P_ W *events, int eventcnt, int type) |
377 | queue_events (EV_P_ W *events, int eventcnt, int type) |
239 | { |
378 | { |
240 | int i; |
379 | int i; |
241 | |
380 | |
242 | for (i = 0; i < eventcnt; ++i) |
381 | for (i = 0; i < eventcnt; ++i) |
243 | event (EV_A_ events [i], type); |
382 | ev_feed_event (EV_A_ events [i], type); |
244 | } |
383 | } |
245 | |
384 | |
246 | static void |
385 | inline void |
247 | fd_event (EV_P_ int fd, int events) |
386 | fd_event (EV_P_ int fd, int revents) |
248 | { |
387 | { |
249 | ANFD *anfd = anfds + fd; |
388 | ANFD *anfd = anfds + fd; |
250 | struct ev_io *w; |
389 | struct ev_io *w; |
251 | |
390 | |
252 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
391 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
253 | { |
392 | { |
254 | int ev = w->events & events; |
393 | int ev = w->events & revents; |
255 | |
394 | |
256 | if (ev) |
395 | if (ev) |
257 | event (EV_A_ (W)w, ev); |
396 | ev_feed_event (EV_A_ (W)w, ev); |
258 | } |
397 | } |
|
|
398 | } |
|
|
399 | |
|
|
400 | void |
|
|
401 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
402 | { |
|
|
403 | fd_event (EV_A_ fd, revents); |
259 | } |
404 | } |
260 | |
405 | |
261 | /*****************************************************************************/ |
406 | /*****************************************************************************/ |
262 | |
407 | |
263 | static void |
408 | static void |
… | |
… | |
274 | int events = 0; |
419 | int events = 0; |
275 | |
420 | |
276 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
421 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
277 | events |= w->events; |
422 | events |= w->events; |
278 | |
423 | |
|
|
424 | #if EV_SELECT_IS_WINSOCKET |
|
|
425 | if (events) |
|
|
426 | { |
|
|
427 | unsigned long argp; |
|
|
428 | anfd->handle = _get_osfhandle (fd); |
|
|
429 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
430 | } |
|
|
431 | #endif |
|
|
432 | |
279 | anfd->reify = 0; |
433 | anfd->reify = 0; |
280 | |
434 | |
281 | if (anfd->events != events) |
|
|
282 | { |
|
|
283 | method_modify (EV_A_ fd, anfd->events, events); |
435 | method_modify (EV_A_ fd, anfd->events, events); |
284 | anfd->events = events; |
436 | anfd->events = events; |
285 | } |
|
|
286 | } |
437 | } |
287 | |
438 | |
288 | fdchangecnt = 0; |
439 | fdchangecnt = 0; |
289 | } |
440 | } |
290 | |
441 | |
291 | static void |
442 | static void |
292 | fd_change (EV_P_ int fd) |
443 | fd_change (EV_P_ int fd) |
293 | { |
444 | { |
294 | if (anfds [fd].reify || fdchangecnt < 0) |
445 | if (anfds [fd].reify) |
295 | return; |
446 | return; |
296 | |
447 | |
297 | anfds [fd].reify = 1; |
448 | anfds [fd].reify = 1; |
298 | |
449 | |
299 | ++fdchangecnt; |
450 | ++fdchangecnt; |
300 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
451 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
301 | fdchanges [fdchangecnt - 1] = fd; |
452 | fdchanges [fdchangecnt - 1] = fd; |
302 | } |
453 | } |
303 | |
454 | |
304 | static void |
455 | static void |
305 | fd_kill (EV_P_ int fd) |
456 | fd_kill (EV_P_ int fd) |
… | |
… | |
307 | struct ev_io *w; |
458 | struct ev_io *w; |
308 | |
459 | |
309 | while ((w = (struct ev_io *)anfds [fd].head)) |
460 | while ((w = (struct ev_io *)anfds [fd].head)) |
310 | { |
461 | { |
311 | ev_io_stop (EV_A_ w); |
462 | ev_io_stop (EV_A_ w); |
312 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
463 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
313 | } |
464 | } |
|
|
465 | } |
|
|
466 | |
|
|
467 | static int |
|
|
468 | fd_valid (int fd) |
|
|
469 | { |
|
|
470 | #ifdef _WIN32 |
|
|
471 | return _get_osfhandle (fd) != -1; |
|
|
472 | #else |
|
|
473 | return fcntl (fd, F_GETFD) != -1; |
|
|
474 | #endif |
314 | } |
475 | } |
315 | |
476 | |
316 | /* called on EBADF to verify fds */ |
477 | /* called on EBADF to verify fds */ |
317 | static void |
478 | static void |
318 | fd_ebadf (EV_P) |
479 | fd_ebadf (EV_P) |
319 | { |
480 | { |
320 | int fd; |
481 | int fd; |
321 | |
482 | |
322 | for (fd = 0; fd < anfdmax; ++fd) |
483 | for (fd = 0; fd < anfdmax; ++fd) |
323 | if (anfds [fd].events) |
484 | if (anfds [fd].events) |
324 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
485 | if (!fd_valid (fd) == -1 && errno == EBADF) |
325 | fd_kill (EV_A_ fd); |
486 | fd_kill (EV_A_ fd); |
326 | } |
487 | } |
327 | |
488 | |
328 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
489 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
329 | static void |
490 | static void |
330 | fd_enomem (EV_P) |
491 | fd_enomem (EV_P) |
331 | { |
492 | { |
332 | int fd = anfdmax; |
493 | int fd; |
333 | |
494 | |
334 | while (fd--) |
495 | for (fd = anfdmax; fd--; ) |
335 | if (anfds [fd].events) |
496 | if (anfds [fd].events) |
336 | { |
497 | { |
337 | close (fd); |
|
|
338 | fd_kill (EV_A_ fd); |
498 | fd_kill (EV_A_ fd); |
339 | return; |
499 | return; |
340 | } |
500 | } |
341 | } |
501 | } |
342 | |
502 | |
|
|
503 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
504 | static void |
|
|
505 | fd_rearm_all (EV_P) |
|
|
506 | { |
|
|
507 | int fd; |
|
|
508 | |
|
|
509 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
510 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
511 | if (anfds [fd].events) |
|
|
512 | { |
|
|
513 | anfds [fd].events = 0; |
|
|
514 | fd_change (EV_A_ fd); |
|
|
515 | } |
|
|
516 | } |
|
|
517 | |
343 | /*****************************************************************************/ |
518 | /*****************************************************************************/ |
344 | |
519 | |
345 | static void |
520 | static void |
346 | upheap (WT *heap, int k) |
521 | upheap (WT *heap, int k) |
347 | { |
522 | { |
348 | WT w = heap [k]; |
523 | WT w = heap [k]; |
349 | |
524 | |
350 | while (k && heap [k >> 1]->at > w->at) |
525 | while (k && heap [k >> 1]->at > w->at) |
351 | { |
526 | { |
352 | heap [k] = heap [k >> 1]; |
527 | heap [k] = heap [k >> 1]; |
353 | heap [k]->active = k + 1; |
528 | ((W)heap [k])->active = k + 1; |
354 | k >>= 1; |
529 | k >>= 1; |
355 | } |
530 | } |
356 | |
531 | |
357 | heap [k] = w; |
532 | heap [k] = w; |
358 | heap [k]->active = k + 1; |
533 | ((W)heap [k])->active = k + 1; |
359 | |
534 | |
360 | } |
535 | } |
361 | |
536 | |
362 | static void |
537 | static void |
363 | downheap (WT *heap, int N, int k) |
538 | downheap (WT *heap, int N, int k) |
… | |
… | |
373 | |
548 | |
374 | if (w->at <= heap [j]->at) |
549 | if (w->at <= heap [j]->at) |
375 | break; |
550 | break; |
376 | |
551 | |
377 | heap [k] = heap [j]; |
552 | heap [k] = heap [j]; |
378 | heap [k]->active = k + 1; |
553 | ((W)heap [k])->active = k + 1; |
379 | k = j; |
554 | k = j; |
380 | } |
555 | } |
381 | |
556 | |
382 | heap [k] = w; |
557 | heap [k] = w; |
383 | heap [k]->active = k + 1; |
558 | ((W)heap [k])->active = k + 1; |
|
|
559 | } |
|
|
560 | |
|
|
561 | inline void |
|
|
562 | adjustheap (WT *heap, int N, int k) |
|
|
563 | { |
|
|
564 | upheap (heap, k); |
|
|
565 | downheap (heap, N, k); |
384 | } |
566 | } |
385 | |
567 | |
386 | /*****************************************************************************/ |
568 | /*****************************************************************************/ |
387 | |
569 | |
388 | typedef struct |
570 | typedef struct |
389 | { |
571 | { |
390 | struct ev_watcher_list *head; |
572 | WL head; |
391 | sig_atomic_t volatile gotsig; |
573 | sig_atomic_t volatile gotsig; |
392 | } ANSIG; |
574 | } ANSIG; |
393 | |
575 | |
394 | static ANSIG *signals; |
576 | static ANSIG *signals; |
395 | static int signalmax; |
577 | static int signalmax; |
396 | |
578 | |
397 | static int sigpipe [2]; |
579 | static int sigpipe [2]; |
398 | static sig_atomic_t volatile gotsig; |
580 | static sig_atomic_t volatile gotsig; |
|
|
581 | static struct ev_io sigev; |
399 | |
582 | |
400 | static void |
583 | static void |
401 | signals_init (ANSIG *base, int count) |
584 | signals_init (ANSIG *base, int count) |
402 | { |
585 | { |
403 | while (count--) |
586 | while (count--) |
… | |
… | |
410 | } |
593 | } |
411 | |
594 | |
412 | static void |
595 | static void |
413 | sighandler (int signum) |
596 | sighandler (int signum) |
414 | { |
597 | { |
|
|
598 | #if _WIN32 |
|
|
599 | signal (signum, sighandler); |
|
|
600 | #endif |
|
|
601 | |
415 | signals [signum - 1].gotsig = 1; |
602 | signals [signum - 1].gotsig = 1; |
416 | |
603 | |
417 | if (!gotsig) |
604 | if (!gotsig) |
418 | { |
605 | { |
419 | int old_errno = errno; |
606 | int old_errno = errno; |
… | |
… | |
421 | write (sigpipe [1], &signum, 1); |
608 | write (sigpipe [1], &signum, 1); |
422 | errno = old_errno; |
609 | errno = old_errno; |
423 | } |
610 | } |
424 | } |
611 | } |
425 | |
612 | |
|
|
613 | void |
|
|
614 | ev_feed_signal_event (EV_P_ int signum) |
|
|
615 | { |
|
|
616 | WL w; |
|
|
617 | |
|
|
618 | #if EV_MULTIPLICITY |
|
|
619 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
620 | #endif |
|
|
621 | |
|
|
622 | --signum; |
|
|
623 | |
|
|
624 | if (signum < 0 || signum >= signalmax) |
|
|
625 | return; |
|
|
626 | |
|
|
627 | signals [signum].gotsig = 0; |
|
|
628 | |
|
|
629 | for (w = signals [signum].head; w; w = w->next) |
|
|
630 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
631 | } |
|
|
632 | |
426 | static void |
633 | static void |
427 | sigcb (EV_P_ struct ev_io *iow, int revents) |
634 | sigcb (EV_P_ struct ev_io *iow, int revents) |
428 | { |
635 | { |
429 | struct ev_watcher_list *w; |
|
|
430 | int signum; |
636 | int signum; |
431 | |
637 | |
432 | read (sigpipe [0], &revents, 1); |
638 | read (sigpipe [0], &revents, 1); |
433 | gotsig = 0; |
639 | gotsig = 0; |
434 | |
640 | |
435 | for (signum = signalmax; signum--; ) |
641 | for (signum = signalmax; signum--; ) |
436 | if (signals [signum].gotsig) |
642 | if (signals [signum].gotsig) |
437 | { |
643 | ev_feed_signal_event (EV_A_ signum + 1); |
438 | signals [signum].gotsig = 0; |
644 | } |
439 | |
645 | |
440 | for (w = signals [signum].head; w; w = w->next) |
646 | inline void |
441 | event (EV_A_ (W)w, EV_SIGNAL); |
647 | fd_intern (int fd) |
442 | } |
648 | { |
|
|
649 | #ifdef _WIN32 |
|
|
650 | int arg = 1; |
|
|
651 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
652 | #else |
|
|
653 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
654 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
655 | #endif |
443 | } |
656 | } |
444 | |
657 | |
445 | static void |
658 | static void |
446 | siginit (EV_P) |
659 | siginit (EV_P) |
447 | { |
660 | { |
448 | #ifndef WIN32 |
661 | fd_intern (sigpipe [0]); |
449 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
662 | fd_intern (sigpipe [1]); |
450 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
451 | |
|
|
452 | /* rather than sort out wether we really need nb, set it */ |
|
|
453 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
454 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
455 | #endif |
|
|
456 | |
663 | |
457 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
664 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
458 | ev_io_start (EV_A_ &sigev); |
665 | ev_io_start (EV_A_ &sigev); |
459 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
666 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
460 | } |
667 | } |
461 | |
668 | |
462 | /*****************************************************************************/ |
669 | /*****************************************************************************/ |
463 | |
670 | |
|
|
671 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
672 | |
464 | #ifndef WIN32 |
673 | #ifndef _WIN32 |
|
|
674 | |
|
|
675 | static struct ev_signal childev; |
465 | |
676 | |
466 | #ifndef WCONTINUED |
677 | #ifndef WCONTINUED |
467 | # define WCONTINUED 0 |
678 | # define WCONTINUED 0 |
468 | #endif |
679 | #endif |
469 | |
680 | |
… | |
… | |
473 | struct ev_child *w; |
684 | struct ev_child *w; |
474 | |
685 | |
475 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
686 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
476 | if (w->pid == pid || !w->pid) |
687 | if (w->pid == pid || !w->pid) |
477 | { |
688 | { |
478 | w->priority = sw->priority; /* need to do it *now* */ |
689 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
479 | w->rpid = pid; |
690 | w->rpid = pid; |
480 | w->rstatus = status; |
691 | w->rstatus = status; |
481 | event (EV_A_ (W)w, EV_CHILD); |
692 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
482 | } |
693 | } |
483 | } |
694 | } |
484 | |
695 | |
485 | static void |
696 | static void |
486 | childcb (EV_P_ struct ev_signal *sw, int revents) |
697 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
488 | int pid, status; |
699 | int pid, status; |
489 | |
700 | |
490 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
701 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
491 | { |
702 | { |
492 | /* make sure we are called again until all childs have been reaped */ |
703 | /* make sure we are called again until all childs have been reaped */ |
493 | event (EV_A_ (W)sw, EV_SIGNAL); |
704 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
494 | |
705 | |
495 | child_reap (EV_A_ sw, pid, pid, status); |
706 | child_reap (EV_A_ sw, pid, pid, status); |
496 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
707 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
497 | } |
708 | } |
498 | } |
709 | } |
… | |
… | |
505 | # include "ev_kqueue.c" |
716 | # include "ev_kqueue.c" |
506 | #endif |
717 | #endif |
507 | #if EV_USE_EPOLL |
718 | #if EV_USE_EPOLL |
508 | # include "ev_epoll.c" |
719 | # include "ev_epoll.c" |
509 | #endif |
720 | #endif |
510 | #if EV_USEV_POLL |
721 | #if EV_USE_POLL |
511 | # include "ev_poll.c" |
722 | # include "ev_poll.c" |
512 | #endif |
723 | #endif |
513 | #if EV_USE_SELECT |
724 | #if EV_USE_SELECT |
514 | # include "ev_select.c" |
725 | # include "ev_select.c" |
515 | #endif |
726 | #endif |
… | |
… | |
528 | |
739 | |
529 | /* return true if we are running with elevated privileges and should ignore env variables */ |
740 | /* return true if we are running with elevated privileges and should ignore env variables */ |
530 | static int |
741 | static int |
531 | enable_secure (void) |
742 | enable_secure (void) |
532 | { |
743 | { |
533 | #ifdef WIN32 |
744 | #ifdef _WIN32 |
534 | return 0; |
745 | return 0; |
535 | #else |
746 | #else |
536 | return getuid () != geteuid () |
747 | return getuid () != geteuid () |
537 | || getgid () != getegid (); |
748 | || getgid () != getegid (); |
538 | #endif |
749 | #endif |
539 | } |
750 | } |
540 | |
751 | |
541 | int |
752 | unsigned int |
542 | ev_method (EV_P) |
753 | ev_method (EV_P) |
543 | { |
754 | { |
544 | return method; |
755 | return method; |
545 | } |
756 | } |
546 | |
757 | |
547 | static void |
758 | static void |
548 | loop_init (EV_P_ int methods) |
759 | loop_init (EV_P_ unsigned int flags) |
549 | { |
760 | { |
550 | if (!method) |
761 | if (!method) |
551 | { |
762 | { |
552 | #if EV_USE_MONOTONIC |
763 | #if EV_USE_MONOTONIC |
553 | { |
764 | { |
… | |
… | |
555 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
766 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
556 | have_monotonic = 1; |
767 | have_monotonic = 1; |
557 | } |
768 | } |
558 | #endif |
769 | #endif |
559 | |
770 | |
560 | rt_now = ev_time (); |
771 | ev_rt_now = ev_time (); |
561 | mn_now = get_clock (); |
772 | mn_now = get_clock (); |
562 | now_floor = mn_now; |
773 | now_floor = mn_now; |
563 | rtmn_diff = rt_now - mn_now; |
774 | rtmn_diff = ev_rt_now - mn_now; |
564 | |
775 | |
565 | if (pipe (sigpipe)) |
776 | if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
566 | return 0; |
777 | flags = atoi (getenv ("LIBEV_FLAGS")); |
567 | |
778 | |
568 | if (methods == EVMETHOD_AUTO) |
779 | if (!(flags & 0x0000ffff)) |
569 | if (!enable_secure () && getenv ("LIBmethodS")) |
780 | flags |= 0x0000ffff; |
570 | methods = atoi (getenv ("LIBmethodS")); |
|
|
571 | else |
|
|
572 | methods = EVMETHOD_ANY; |
|
|
573 | |
781 | |
574 | method = 0; |
782 | method = 0; |
575 | #if EV_USE_KQUEUE |
783 | #if EV_USE_KQUEUE |
576 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
784 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
577 | #endif |
785 | #endif |
578 | #if EV_USE_EPOLL |
786 | #if EV_USE_EPOLL |
579 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
787 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
580 | #endif |
788 | #endif |
581 | #if EV_USEV_POLL |
789 | #if EV_USE_POLL |
582 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
790 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
583 | #endif |
791 | #endif |
584 | #if EV_USE_SELECT |
792 | #if EV_USE_SELECT |
585 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
793 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
586 | #endif |
794 | #endif |
587 | |
795 | |
|
|
796 | ev_init (&sigev, sigcb); |
|
|
797 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
798 | } |
|
|
799 | } |
|
|
800 | |
|
|
801 | void |
|
|
802 | loop_destroy (EV_P) |
|
|
803 | { |
|
|
804 | int i; |
|
|
805 | |
|
|
806 | #if EV_USE_KQUEUE |
|
|
807 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
808 | #endif |
|
|
809 | #if EV_USE_EPOLL |
|
|
810 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
811 | #endif |
|
|
812 | #if EV_USE_POLL |
|
|
813 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
814 | #endif |
|
|
815 | #if EV_USE_SELECT |
|
|
816 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
817 | #endif |
|
|
818 | |
|
|
819 | for (i = NUMPRI; i--; ) |
|
|
820 | array_free (pending, [i]); |
|
|
821 | |
|
|
822 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
823 | array_free (fdchange, EMPTY0); |
|
|
824 | array_free (timer, EMPTY0); |
|
|
825 | #if EV_PERIODICS |
|
|
826 | array_free (periodic, EMPTY0); |
|
|
827 | #endif |
|
|
828 | array_free (idle, EMPTY0); |
|
|
829 | array_free (prepare, EMPTY0); |
|
|
830 | array_free (check, EMPTY0); |
|
|
831 | |
|
|
832 | method = 0; |
|
|
833 | } |
|
|
834 | |
|
|
835 | static void |
|
|
836 | loop_fork (EV_P) |
|
|
837 | { |
|
|
838 | #if EV_USE_EPOLL |
|
|
839 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
840 | #endif |
|
|
841 | #if EV_USE_KQUEUE |
|
|
842 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
843 | #endif |
|
|
844 | |
|
|
845 | if (ev_is_active (&sigev)) |
|
|
846 | { |
|
|
847 | /* default loop */ |
|
|
848 | |
|
|
849 | ev_ref (EV_A); |
|
|
850 | ev_io_stop (EV_A_ &sigev); |
|
|
851 | close (sigpipe [0]); |
|
|
852 | close (sigpipe [1]); |
|
|
853 | |
|
|
854 | while (pipe (sigpipe)) |
|
|
855 | syserr ("(libev) error creating pipe"); |
|
|
856 | |
|
|
857 | siginit (EV_A); |
|
|
858 | } |
|
|
859 | |
|
|
860 | postfork = 0; |
|
|
861 | } |
|
|
862 | |
|
|
863 | #if EV_MULTIPLICITY |
|
|
864 | struct ev_loop * |
|
|
865 | ev_loop_new (unsigned int flags) |
|
|
866 | { |
|
|
867 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
868 | |
|
|
869 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
870 | |
|
|
871 | loop_init (EV_A_ flags); |
|
|
872 | |
|
|
873 | if (ev_method (EV_A)) |
|
|
874 | return loop; |
|
|
875 | |
|
|
876 | return 0; |
|
|
877 | } |
|
|
878 | |
|
|
879 | void |
|
|
880 | ev_loop_destroy (EV_P) |
|
|
881 | { |
|
|
882 | loop_destroy (EV_A); |
|
|
883 | ev_free (loop); |
|
|
884 | } |
|
|
885 | |
|
|
886 | void |
|
|
887 | ev_loop_fork (EV_P) |
|
|
888 | { |
|
|
889 | postfork = 1; |
|
|
890 | } |
|
|
891 | |
|
|
892 | #endif |
|
|
893 | |
|
|
894 | #if EV_MULTIPLICITY |
|
|
895 | struct ev_loop * |
|
|
896 | #else |
|
|
897 | int |
|
|
898 | #endif |
|
|
899 | ev_default_loop (unsigned int flags) |
|
|
900 | { |
|
|
901 | if (sigpipe [0] == sigpipe [1]) |
|
|
902 | if (pipe (sigpipe)) |
|
|
903 | return 0; |
|
|
904 | |
|
|
905 | if (!default_loop) |
|
|
906 | { |
|
|
907 | #if EV_MULTIPLICITY |
|
|
908 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
909 | #else |
|
|
910 | default_loop = 1; |
|
|
911 | #endif |
|
|
912 | |
|
|
913 | loop_init (EV_A_ flags); |
|
|
914 | |
588 | if (method) |
915 | if (ev_method (EV_A)) |
589 | { |
916 | { |
590 | ev_watcher_init (&sigev, sigcb); |
|
|
591 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
592 | siginit (EV_A); |
917 | siginit (EV_A); |
593 | |
918 | |
594 | #ifndef WIN32 |
919 | #ifndef _WIN32 |
595 | ev_signal_init (&childev, childcb, SIGCHLD); |
920 | ev_signal_init (&childev, childcb, SIGCHLD); |
596 | ev_set_priority (&childev, EV_MAXPRI); |
921 | ev_set_priority (&childev, EV_MAXPRI); |
597 | ev_signal_start (EV_A_ &childev); |
922 | ev_signal_start (EV_A_ &childev); |
598 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
923 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
599 | #endif |
924 | #endif |
600 | } |
925 | } |
|
|
926 | else |
|
|
927 | default_loop = 0; |
601 | } |
928 | } |
602 | |
929 | |
603 | return method; |
930 | return default_loop; |
604 | } |
931 | } |
605 | |
932 | |
|
|
933 | void |
|
|
934 | ev_default_destroy (void) |
|
|
935 | { |
606 | #ifdef EV_MULTIPLICITY |
936 | #if EV_MULTIPLICITY |
607 | |
937 | struct ev_loop *loop = default_loop; |
608 | struct ev_loop * |
|
|
609 | ev_loop_new (int methods) |
|
|
610 | { |
|
|
611 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
|
|
612 | |
|
|
613 | loop_init (EV_A_ methods); |
|
|
614 | |
|
|
615 | return loop; |
|
|
616 | } |
|
|
617 | |
|
|
618 | void |
|
|
619 | ev_loop_delete (EV_P) |
|
|
620 | { |
|
|
621 | /*TODO*/ |
|
|
622 | free (loop); |
|
|
623 | } |
|
|
624 | |
|
|
625 | #else |
|
|
626 | |
|
|
627 | int |
|
|
628 | ev_init (int methods) |
|
|
629 | { |
|
|
630 | loop_init (); |
|
|
631 | } |
|
|
632 | |
|
|
633 | #endif |
938 | #endif |
|
|
939 | |
|
|
940 | #ifndef _WIN32 |
|
|
941 | ev_ref (EV_A); /* child watcher */ |
|
|
942 | ev_signal_stop (EV_A_ &childev); |
|
|
943 | #endif |
|
|
944 | |
|
|
945 | ev_ref (EV_A); /* signal watcher */ |
|
|
946 | ev_io_stop (EV_A_ &sigev); |
|
|
947 | |
|
|
948 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
949 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
950 | |
|
|
951 | loop_destroy (EV_A); |
|
|
952 | } |
|
|
953 | |
|
|
954 | void |
|
|
955 | ev_default_fork (void) |
|
|
956 | { |
|
|
957 | #if EV_MULTIPLICITY |
|
|
958 | struct ev_loop *loop = default_loop; |
|
|
959 | #endif |
|
|
960 | |
|
|
961 | if (method) |
|
|
962 | postfork = 1; |
|
|
963 | } |
634 | |
964 | |
635 | /*****************************************************************************/ |
965 | /*****************************************************************************/ |
636 | |
966 | |
637 | void |
967 | static int |
638 | ev_fork_prepare (void) |
968 | any_pending (EV_P) |
639 | { |
969 | { |
640 | /* nop */ |
970 | int pri; |
641 | } |
|
|
642 | |
971 | |
643 | void |
972 | for (pri = NUMPRI; pri--; ) |
644 | ev_fork_parent (void) |
973 | if (pendingcnt [pri]) |
645 | { |
974 | return 1; |
646 | /* nop */ |
|
|
647 | } |
|
|
648 | |
975 | |
649 | void |
976 | return 0; |
650 | ev_fork_child (void) |
|
|
651 | { |
|
|
652 | /*TODO*/ |
|
|
653 | #if !EV_MULTIPLICITY |
|
|
654 | #if EV_USE_EPOLL |
|
|
655 | if (method == EVMETHOD_EPOLL) |
|
|
656 | epoll_postfork_child (EV_A); |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | ev_io_stop (EV_A_ &sigev); |
|
|
660 | close (sigpipe [0]); |
|
|
661 | close (sigpipe [1]); |
|
|
662 | pipe (sigpipe); |
|
|
663 | siginit (EV_A); |
|
|
664 | #endif |
|
|
665 | } |
977 | } |
666 | |
|
|
667 | /*****************************************************************************/ |
|
|
668 | |
978 | |
669 | static void |
979 | static void |
670 | call_pending (EV_P) |
980 | call_pending (EV_P) |
671 | { |
981 | { |
672 | int pri; |
982 | int pri; |
… | |
… | |
677 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
987 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
678 | |
988 | |
679 | if (p->w) |
989 | if (p->w) |
680 | { |
990 | { |
681 | p->w->pending = 0; |
991 | p->w->pending = 0; |
682 | p->w->cb (EV_A_ p->w, p->events); |
992 | EV_CB_INVOKE (p->w, p->events); |
683 | } |
993 | } |
684 | } |
994 | } |
685 | } |
995 | } |
686 | |
996 | |
687 | static void |
997 | static void |
688 | timers_reify (EV_P) |
998 | timers_reify (EV_P) |
689 | { |
999 | { |
690 | while (timercnt && timers [0]->at <= mn_now) |
1000 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
691 | { |
1001 | { |
692 | struct ev_timer *w = timers [0]; |
1002 | struct ev_timer *w = timers [0]; |
|
|
1003 | |
|
|
1004 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
693 | |
1005 | |
694 | /* first reschedule or stop timer */ |
1006 | /* first reschedule or stop timer */ |
695 | if (w->repeat) |
1007 | if (w->repeat) |
696 | { |
1008 | { |
697 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1009 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1010 | |
698 | w->at = mn_now + w->repeat; |
1011 | ((WT)w)->at += w->repeat; |
|
|
1012 | if (((WT)w)->at < mn_now) |
|
|
1013 | ((WT)w)->at = mn_now; |
|
|
1014 | |
699 | downheap ((WT *)timers, timercnt, 0); |
1015 | downheap ((WT *)timers, timercnt, 0); |
700 | } |
1016 | } |
701 | else |
1017 | else |
702 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1018 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
703 | |
1019 | |
704 | event (EV_A_ (W)w, EV_TIMEOUT); |
1020 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
705 | } |
1021 | } |
706 | } |
1022 | } |
707 | |
1023 | |
|
|
1024 | #if EV_PERIODICS |
708 | static void |
1025 | static void |
709 | periodics_reify (EV_P) |
1026 | periodics_reify (EV_P) |
710 | { |
1027 | { |
711 | while (periodiccnt && periodics [0]->at <= rt_now) |
1028 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
712 | { |
1029 | { |
713 | struct ev_periodic *w = periodics [0]; |
1030 | struct ev_periodic *w = periodics [0]; |
714 | |
1031 | |
|
|
1032 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1033 | |
715 | /* first reschedule or stop timer */ |
1034 | /* first reschedule or stop timer */ |
716 | if (w->interval) |
1035 | if (w->reschedule_cb) |
717 | { |
1036 | { |
|
|
1037 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1038 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1039 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1040 | } |
|
|
1041 | else if (w->interval) |
|
|
1042 | { |
718 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1043 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
719 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1044 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
720 | downheap ((WT *)periodics, periodiccnt, 0); |
1045 | downheap ((WT *)periodics, periodiccnt, 0); |
721 | } |
1046 | } |
722 | else |
1047 | else |
723 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1048 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
724 | |
1049 | |
725 | event (EV_A_ (W)w, EV_PERIODIC); |
1050 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
726 | } |
1051 | } |
727 | } |
1052 | } |
728 | |
1053 | |
729 | static void |
1054 | static void |
730 | periodics_reschedule (EV_P) |
1055 | periodics_reschedule (EV_P) |
… | |
… | |
734 | /* adjust periodics after time jump */ |
1059 | /* adjust periodics after time jump */ |
735 | for (i = 0; i < periodiccnt; ++i) |
1060 | for (i = 0; i < periodiccnt; ++i) |
736 | { |
1061 | { |
737 | struct ev_periodic *w = periodics [i]; |
1062 | struct ev_periodic *w = periodics [i]; |
738 | |
1063 | |
|
|
1064 | if (w->reschedule_cb) |
|
|
1065 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
739 | if (w->interval) |
1066 | else if (w->interval) |
740 | { |
|
|
741 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1067 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
742 | |
|
|
743 | if (fabs (diff) >= 1e-4) |
|
|
744 | { |
|
|
745 | ev_periodic_stop (EV_A_ w); |
|
|
746 | ev_periodic_start (EV_A_ w); |
|
|
747 | |
|
|
748 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
749 | } |
|
|
750 | } |
|
|
751 | } |
1068 | } |
|
|
1069 | |
|
|
1070 | /* now rebuild the heap */ |
|
|
1071 | for (i = periodiccnt >> 1; i--; ) |
|
|
1072 | downheap ((WT *)periodics, periodiccnt, i); |
752 | } |
1073 | } |
|
|
1074 | #endif |
753 | |
1075 | |
754 | inline int |
1076 | inline int |
755 | time_update_monotonic (EV_P) |
1077 | time_update_monotonic (EV_P) |
756 | { |
1078 | { |
757 | mn_now = get_clock (); |
1079 | mn_now = get_clock (); |
758 | |
1080 | |
759 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1081 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
760 | { |
1082 | { |
761 | rt_now = rtmn_diff + mn_now; |
1083 | ev_rt_now = rtmn_diff + mn_now; |
762 | return 0; |
1084 | return 0; |
763 | } |
1085 | } |
764 | else |
1086 | else |
765 | { |
1087 | { |
766 | now_floor = mn_now; |
1088 | now_floor = mn_now; |
767 | rt_now = ev_time (); |
1089 | ev_rt_now = ev_time (); |
768 | return 1; |
1090 | return 1; |
769 | } |
1091 | } |
770 | } |
1092 | } |
771 | |
1093 | |
772 | static void |
1094 | static void |
… | |
… | |
781 | { |
1103 | { |
782 | ev_tstamp odiff = rtmn_diff; |
1104 | ev_tstamp odiff = rtmn_diff; |
783 | |
1105 | |
784 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1106 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
785 | { |
1107 | { |
786 | rtmn_diff = rt_now - mn_now; |
1108 | rtmn_diff = ev_rt_now - mn_now; |
787 | |
1109 | |
788 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1110 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
789 | return; /* all is well */ |
1111 | return; /* all is well */ |
790 | |
1112 | |
791 | rt_now = ev_time (); |
1113 | ev_rt_now = ev_time (); |
792 | mn_now = get_clock (); |
1114 | mn_now = get_clock (); |
793 | now_floor = mn_now; |
1115 | now_floor = mn_now; |
794 | } |
1116 | } |
795 | |
1117 | |
|
|
1118 | # if EV_PERIODICS |
796 | periodics_reschedule (EV_A); |
1119 | periodics_reschedule (EV_A); |
|
|
1120 | # endif |
797 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1121 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
798 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1122 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
799 | } |
1123 | } |
800 | } |
1124 | } |
801 | else |
1125 | else |
802 | #endif |
1126 | #endif |
803 | { |
1127 | { |
804 | rt_now = ev_time (); |
1128 | ev_rt_now = ev_time (); |
805 | |
1129 | |
806 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1130 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
807 | { |
1131 | { |
|
|
1132 | #if EV_PERIODICS |
808 | periodics_reschedule (EV_A); |
1133 | periodics_reschedule (EV_A); |
|
|
1134 | #endif |
809 | |
1135 | |
810 | /* adjust timers. this is easy, as the offset is the same for all */ |
1136 | /* adjust timers. this is easy, as the offset is the same for all */ |
811 | for (i = 0; i < timercnt; ++i) |
1137 | for (i = 0; i < timercnt; ++i) |
812 | timers [i]->at += rt_now - mn_now; |
1138 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
813 | } |
1139 | } |
814 | |
1140 | |
815 | mn_now = rt_now; |
1141 | mn_now = ev_rt_now; |
816 | } |
1142 | } |
817 | } |
1143 | } |
818 | |
1144 | |
819 | void |
1145 | void |
820 | ev_ref (EV_P) |
1146 | ev_ref (EV_P) |
… | |
… | |
834 | ev_loop (EV_P_ int flags) |
1160 | ev_loop (EV_P_ int flags) |
835 | { |
1161 | { |
836 | double block; |
1162 | double block; |
837 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1163 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
838 | |
1164 | |
839 | do |
1165 | while (activecnt) |
840 | { |
1166 | { |
841 | /* queue check watchers (and execute them) */ |
1167 | /* queue check watchers (and execute them) */ |
842 | if (expect_false (preparecnt)) |
1168 | if (expect_false (preparecnt)) |
843 | { |
1169 | { |
844 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1170 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
845 | call_pending (EV_A); |
1171 | call_pending (EV_A); |
846 | } |
1172 | } |
847 | |
1173 | |
|
|
1174 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1175 | if (expect_false (postfork)) |
|
|
1176 | loop_fork (EV_A); |
|
|
1177 | |
848 | /* update fd-related kernel structures */ |
1178 | /* update fd-related kernel structures */ |
849 | fd_reify (EV_A); |
1179 | fd_reify (EV_A); |
850 | |
1180 | |
851 | /* calculate blocking time */ |
1181 | /* calculate blocking time */ |
852 | |
1182 | |
853 | /* we only need this for !monotonic clockor timers, but as we basically |
1183 | /* we only need this for !monotonic clock or timers, but as we basically |
854 | always have timers, we just calculate it always */ |
1184 | always have timers, we just calculate it always */ |
855 | #if EV_USE_MONOTONIC |
1185 | #if EV_USE_MONOTONIC |
856 | if (expect_true (have_monotonic)) |
1186 | if (expect_true (have_monotonic)) |
857 | time_update_monotonic (EV_A); |
1187 | time_update_monotonic (EV_A); |
858 | else |
1188 | else |
859 | #endif |
1189 | #endif |
860 | { |
1190 | { |
861 | rt_now = ev_time (); |
1191 | ev_rt_now = ev_time (); |
862 | mn_now = rt_now; |
1192 | mn_now = ev_rt_now; |
863 | } |
1193 | } |
864 | |
1194 | |
865 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1195 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
866 | block = 0.; |
1196 | block = 0.; |
867 | else |
1197 | else |
868 | { |
1198 | { |
869 | block = MAX_BLOCKTIME; |
1199 | block = MAX_BLOCKTIME; |
870 | |
1200 | |
871 | if (timercnt) |
1201 | if (timercnt) |
872 | { |
1202 | { |
873 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1203 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
874 | if (block > to) block = to; |
1204 | if (block > to) block = to; |
875 | } |
1205 | } |
876 | |
1206 | |
|
|
1207 | #if EV_PERIODICS |
877 | if (periodiccnt) |
1208 | if (periodiccnt) |
878 | { |
1209 | { |
879 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1210 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
880 | if (block > to) block = to; |
1211 | if (block > to) block = to; |
881 | } |
1212 | } |
|
|
1213 | #endif |
882 | |
1214 | |
883 | if (block < 0.) block = 0.; |
1215 | if (block < 0.) block = 0.; |
884 | } |
1216 | } |
885 | |
1217 | |
886 | method_poll (EV_A_ block); |
1218 | method_poll (EV_A_ block); |
887 | |
1219 | |
888 | /* update rt_now, do magic */ |
1220 | /* update ev_rt_now, do magic */ |
889 | time_update (EV_A); |
1221 | time_update (EV_A); |
890 | |
1222 | |
891 | /* queue pending timers and reschedule them */ |
1223 | /* queue pending timers and reschedule them */ |
892 | timers_reify (EV_A); /* relative timers called last */ |
1224 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1225 | #if EV_PERIODICS |
893 | periodics_reify (EV_A); /* absolute timers called first */ |
1226 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1227 | #endif |
894 | |
1228 | |
895 | /* queue idle watchers unless io or timers are pending */ |
1229 | /* queue idle watchers unless io or timers are pending */ |
896 | if (!pendingcnt) |
1230 | if (idlecnt && !any_pending (EV_A)) |
897 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1231 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
898 | |
1232 | |
899 | /* queue check watchers, to be executed first */ |
1233 | /* queue check watchers, to be executed first */ |
900 | if (checkcnt) |
1234 | if (checkcnt) |
901 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1235 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
902 | |
1236 | |
903 | call_pending (EV_A); |
1237 | call_pending (EV_A); |
|
|
1238 | |
|
|
1239 | if (loop_done) |
|
|
1240 | break; |
904 | } |
1241 | } |
905 | while (activecnt && !loop_done); |
|
|
906 | |
1242 | |
907 | if (loop_done != 2) |
1243 | if (loop_done != 2) |
908 | loop_done = 0; |
1244 | loop_done = 0; |
909 | } |
1245 | } |
910 | |
1246 | |
… | |
… | |
976 | return; |
1312 | return; |
977 | |
1313 | |
978 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1314 | assert (("ev_io_start called with negative fd", fd >= 0)); |
979 | |
1315 | |
980 | ev_start (EV_A_ (W)w, 1); |
1316 | ev_start (EV_A_ (W)w, 1); |
981 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1317 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
982 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1318 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
983 | |
1319 | |
984 | fd_change (EV_A_ fd); |
1320 | fd_change (EV_A_ fd); |
985 | } |
1321 | } |
986 | |
1322 | |
… | |
… | |
989 | { |
1325 | { |
990 | ev_clear_pending (EV_A_ (W)w); |
1326 | ev_clear_pending (EV_A_ (W)w); |
991 | if (!ev_is_active (w)) |
1327 | if (!ev_is_active (w)) |
992 | return; |
1328 | return; |
993 | |
1329 | |
|
|
1330 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1331 | |
994 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1332 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
995 | ev_stop (EV_A_ (W)w); |
1333 | ev_stop (EV_A_ (W)w); |
996 | |
1334 | |
997 | fd_change (EV_A_ w->fd); |
1335 | fd_change (EV_A_ w->fd); |
998 | } |
1336 | } |
… | |
… | |
1001 | ev_timer_start (EV_P_ struct ev_timer *w) |
1339 | ev_timer_start (EV_P_ struct ev_timer *w) |
1002 | { |
1340 | { |
1003 | if (ev_is_active (w)) |
1341 | if (ev_is_active (w)) |
1004 | return; |
1342 | return; |
1005 | |
1343 | |
1006 | w->at += mn_now; |
1344 | ((WT)w)->at += mn_now; |
1007 | |
1345 | |
1008 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1346 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1009 | |
1347 | |
1010 | ev_start (EV_A_ (W)w, ++timercnt); |
1348 | ev_start (EV_A_ (W)w, ++timercnt); |
1011 | array_needsize (timers, timermax, timercnt, ); |
1349 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1012 | timers [timercnt - 1] = w; |
1350 | timers [timercnt - 1] = w; |
1013 | upheap ((WT *)timers, timercnt - 1); |
1351 | upheap ((WT *)timers, timercnt - 1); |
|
|
1352 | |
|
|
1353 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1014 | } |
1354 | } |
1015 | |
1355 | |
1016 | void |
1356 | void |
1017 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1357 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1018 | { |
1358 | { |
1019 | ev_clear_pending (EV_A_ (W)w); |
1359 | ev_clear_pending (EV_A_ (W)w); |
1020 | if (!ev_is_active (w)) |
1360 | if (!ev_is_active (w)) |
1021 | return; |
1361 | return; |
1022 | |
1362 | |
|
|
1363 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1364 | |
1023 | if (w->active < timercnt--) |
1365 | if (((W)w)->active < timercnt--) |
1024 | { |
1366 | { |
1025 | timers [w->active - 1] = timers [timercnt]; |
1367 | timers [((W)w)->active - 1] = timers [timercnt]; |
1026 | downheap ((WT *)timers, timercnt, w->active - 1); |
1368 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1027 | } |
1369 | } |
1028 | |
1370 | |
1029 | w->at = w->repeat; |
1371 | ((WT)w)->at -= mn_now; |
1030 | |
1372 | |
1031 | ev_stop (EV_A_ (W)w); |
1373 | ev_stop (EV_A_ (W)w); |
1032 | } |
1374 | } |
1033 | |
1375 | |
1034 | void |
1376 | void |
… | |
… | |
1036 | { |
1378 | { |
1037 | if (ev_is_active (w)) |
1379 | if (ev_is_active (w)) |
1038 | { |
1380 | { |
1039 | if (w->repeat) |
1381 | if (w->repeat) |
1040 | { |
1382 | { |
1041 | w->at = mn_now + w->repeat; |
1383 | ((WT)w)->at = mn_now + w->repeat; |
1042 | downheap ((WT *)timers, timercnt, w->active - 1); |
1384 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1043 | } |
1385 | } |
1044 | else |
1386 | else |
1045 | ev_timer_stop (EV_A_ w); |
1387 | ev_timer_stop (EV_A_ w); |
1046 | } |
1388 | } |
1047 | else if (w->repeat) |
1389 | else if (w->repeat) |
|
|
1390 | { |
|
|
1391 | w->at = w->repeat; |
1048 | ev_timer_start (EV_A_ w); |
1392 | ev_timer_start (EV_A_ w); |
|
|
1393 | } |
1049 | } |
1394 | } |
1050 | |
1395 | |
|
|
1396 | #if EV_PERIODICS |
1051 | void |
1397 | void |
1052 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1398 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1053 | { |
1399 | { |
1054 | if (ev_is_active (w)) |
1400 | if (ev_is_active (w)) |
1055 | return; |
1401 | return; |
1056 | |
1402 | |
|
|
1403 | if (w->reschedule_cb) |
|
|
1404 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1405 | else if (w->interval) |
|
|
1406 | { |
1057 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1407 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1058 | |
|
|
1059 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1408 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1060 | if (w->interval) |
|
|
1061 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1409 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1410 | } |
1062 | |
1411 | |
1063 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1412 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1064 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1413 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1065 | periodics [periodiccnt - 1] = w; |
1414 | periodics [periodiccnt - 1] = w; |
1066 | upheap ((WT *)periodics, periodiccnt - 1); |
1415 | upheap ((WT *)periodics, periodiccnt - 1); |
|
|
1416 | |
|
|
1417 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1067 | } |
1418 | } |
1068 | |
1419 | |
1069 | void |
1420 | void |
1070 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1421 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1071 | { |
1422 | { |
1072 | ev_clear_pending (EV_A_ (W)w); |
1423 | ev_clear_pending (EV_A_ (W)w); |
1073 | if (!ev_is_active (w)) |
1424 | if (!ev_is_active (w)) |
1074 | return; |
1425 | return; |
1075 | |
1426 | |
|
|
1427 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1428 | |
1076 | if (w->active < periodiccnt--) |
1429 | if (((W)w)->active < periodiccnt--) |
1077 | { |
1430 | { |
1078 | periodics [w->active - 1] = periodics [periodiccnt]; |
1431 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1079 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1432 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1080 | } |
1433 | } |
1081 | |
1434 | |
|
|
1435 | ev_stop (EV_A_ (W)w); |
|
|
1436 | } |
|
|
1437 | |
|
|
1438 | void |
|
|
1439 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1440 | { |
|
|
1441 | /* TODO: use adjustheap and recalculation */ |
|
|
1442 | ev_periodic_stop (EV_A_ w); |
|
|
1443 | ev_periodic_start (EV_A_ w); |
|
|
1444 | } |
|
|
1445 | #endif |
|
|
1446 | |
|
|
1447 | void |
|
|
1448 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1449 | { |
|
|
1450 | if (ev_is_active (w)) |
|
|
1451 | return; |
|
|
1452 | |
|
|
1453 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1454 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1455 | idles [idlecnt - 1] = w; |
|
|
1456 | } |
|
|
1457 | |
|
|
1458 | void |
|
|
1459 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1460 | { |
|
|
1461 | ev_clear_pending (EV_A_ (W)w); |
|
|
1462 | if (!ev_is_active (w)) |
|
|
1463 | return; |
|
|
1464 | |
|
|
1465 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1466 | ev_stop (EV_A_ (W)w); |
|
|
1467 | } |
|
|
1468 | |
|
|
1469 | void |
|
|
1470 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1471 | { |
|
|
1472 | if (ev_is_active (w)) |
|
|
1473 | return; |
|
|
1474 | |
|
|
1475 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1476 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1477 | prepares [preparecnt - 1] = w; |
|
|
1478 | } |
|
|
1479 | |
|
|
1480 | void |
|
|
1481 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1482 | { |
|
|
1483 | ev_clear_pending (EV_A_ (W)w); |
|
|
1484 | if (!ev_is_active (w)) |
|
|
1485 | return; |
|
|
1486 | |
|
|
1487 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1488 | ev_stop (EV_A_ (W)w); |
|
|
1489 | } |
|
|
1490 | |
|
|
1491 | void |
|
|
1492 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1493 | { |
|
|
1494 | if (ev_is_active (w)) |
|
|
1495 | return; |
|
|
1496 | |
|
|
1497 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1498 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1499 | checks [checkcnt - 1] = w; |
|
|
1500 | } |
|
|
1501 | |
|
|
1502 | void |
|
|
1503 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1504 | { |
|
|
1505 | ev_clear_pending (EV_A_ (W)w); |
|
|
1506 | if (!ev_is_active (w)) |
|
|
1507 | return; |
|
|
1508 | |
|
|
1509 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1082 | ev_stop (EV_A_ (W)w); |
1510 | ev_stop (EV_A_ (W)w); |
1083 | } |
1511 | } |
1084 | |
1512 | |
1085 | #ifndef SA_RESTART |
1513 | #ifndef SA_RESTART |
1086 | # define SA_RESTART 0 |
1514 | # define SA_RESTART 0 |
1087 | #endif |
1515 | #endif |
1088 | |
1516 | |
1089 | void |
1517 | void |
1090 | ev_signal_start (EV_P_ struct ev_signal *w) |
1518 | ev_signal_start (EV_P_ struct ev_signal *w) |
1091 | { |
1519 | { |
|
|
1520 | #if EV_MULTIPLICITY |
|
|
1521 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1522 | #endif |
1092 | if (ev_is_active (w)) |
1523 | if (ev_is_active (w)) |
1093 | return; |
1524 | return; |
1094 | |
1525 | |
1095 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1526 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1096 | |
1527 | |
1097 | ev_start (EV_A_ (W)w, 1); |
1528 | ev_start (EV_A_ (W)w, 1); |
1098 | array_needsize (signals, signalmax, w->signum, signals_init); |
1529 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1099 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1530 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1100 | |
1531 | |
1101 | if (!w->next) |
1532 | if (!((WL)w)->next) |
1102 | { |
1533 | { |
|
|
1534 | #if _WIN32 |
|
|
1535 | signal (w->signum, sighandler); |
|
|
1536 | #else |
1103 | struct sigaction sa; |
1537 | struct sigaction sa; |
1104 | sa.sa_handler = sighandler; |
1538 | sa.sa_handler = sighandler; |
1105 | sigfillset (&sa.sa_mask); |
1539 | sigfillset (&sa.sa_mask); |
1106 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1540 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1107 | sigaction (w->signum, &sa, 0); |
1541 | sigaction (w->signum, &sa, 0); |
|
|
1542 | #endif |
1108 | } |
1543 | } |
1109 | } |
1544 | } |
1110 | |
1545 | |
1111 | void |
1546 | void |
1112 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1547 | ev_signal_stop (EV_P_ struct ev_signal *w) |
… | |
… | |
1121 | if (!signals [w->signum - 1].head) |
1556 | if (!signals [w->signum - 1].head) |
1122 | signal (w->signum, SIG_DFL); |
1557 | signal (w->signum, SIG_DFL); |
1123 | } |
1558 | } |
1124 | |
1559 | |
1125 | void |
1560 | void |
1126 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1127 | { |
|
|
1128 | if (ev_is_active (w)) |
|
|
1129 | return; |
|
|
1130 | |
|
|
1131 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1132 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1133 | idles [idlecnt - 1] = w; |
|
|
1134 | } |
|
|
1135 | |
|
|
1136 | void |
|
|
1137 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1138 | { |
|
|
1139 | ev_clear_pending (EV_A_ (W)w); |
|
|
1140 | if (ev_is_active (w)) |
|
|
1141 | return; |
|
|
1142 | |
|
|
1143 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1144 | ev_stop (EV_A_ (W)w); |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | void |
|
|
1148 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1149 | { |
|
|
1150 | if (ev_is_active (w)) |
|
|
1151 | return; |
|
|
1152 | |
|
|
1153 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1154 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1155 | prepares [preparecnt - 1] = w; |
|
|
1156 | } |
|
|
1157 | |
|
|
1158 | void |
|
|
1159 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1160 | { |
|
|
1161 | ev_clear_pending (EV_A_ (W)w); |
|
|
1162 | if (ev_is_active (w)) |
|
|
1163 | return; |
|
|
1164 | |
|
|
1165 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1166 | ev_stop (EV_A_ (W)w); |
|
|
1167 | } |
|
|
1168 | |
|
|
1169 | void |
|
|
1170 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1171 | { |
|
|
1172 | if (ev_is_active (w)) |
|
|
1173 | return; |
|
|
1174 | |
|
|
1175 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1176 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1177 | checks [checkcnt - 1] = w; |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | void |
|
|
1181 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1182 | { |
|
|
1183 | ev_clear_pending (EV_A_ (W)w); |
|
|
1184 | if (ev_is_active (w)) |
|
|
1185 | return; |
|
|
1186 | |
|
|
1187 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1188 | ev_stop (EV_A_ (W)w); |
|
|
1189 | } |
|
|
1190 | |
|
|
1191 | void |
|
|
1192 | ev_child_start (EV_P_ struct ev_child *w) |
1561 | ev_child_start (EV_P_ struct ev_child *w) |
1193 | { |
1562 | { |
|
|
1563 | #if EV_MULTIPLICITY |
|
|
1564 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1565 | #endif |
1194 | if (ev_is_active (w)) |
1566 | if (ev_is_active (w)) |
1195 | return; |
1567 | return; |
1196 | |
1568 | |
1197 | ev_start (EV_A_ (W)w, 1); |
1569 | ev_start (EV_A_ (W)w, 1); |
1198 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1570 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
… | |
… | |
1200 | |
1572 | |
1201 | void |
1573 | void |
1202 | ev_child_stop (EV_P_ struct ev_child *w) |
1574 | ev_child_stop (EV_P_ struct ev_child *w) |
1203 | { |
1575 | { |
1204 | ev_clear_pending (EV_A_ (W)w); |
1576 | ev_clear_pending (EV_A_ (W)w); |
1205 | if (ev_is_active (w)) |
1577 | if (!ev_is_active (w)) |
1206 | return; |
1578 | return; |
1207 | |
1579 | |
1208 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1580 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1209 | ev_stop (EV_A_ (W)w); |
1581 | ev_stop (EV_A_ (W)w); |
1210 | } |
1582 | } |
… | |
… | |
1225 | void (*cb)(int revents, void *arg) = once->cb; |
1597 | void (*cb)(int revents, void *arg) = once->cb; |
1226 | void *arg = once->arg; |
1598 | void *arg = once->arg; |
1227 | |
1599 | |
1228 | ev_io_stop (EV_A_ &once->io); |
1600 | ev_io_stop (EV_A_ &once->io); |
1229 | ev_timer_stop (EV_A_ &once->to); |
1601 | ev_timer_stop (EV_A_ &once->to); |
1230 | free (once); |
1602 | ev_free (once); |
1231 | |
1603 | |
1232 | cb (revents, arg); |
1604 | cb (revents, arg); |
1233 | } |
1605 | } |
1234 | |
1606 | |
1235 | static void |
1607 | static void |
… | |
… | |
1245 | } |
1617 | } |
1246 | |
1618 | |
1247 | void |
1619 | void |
1248 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1620 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1249 | { |
1621 | { |
1250 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1622 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1251 | |
1623 | |
1252 | if (!once) |
1624 | if (!once) |
1253 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1625 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1254 | else |
1626 | else |
1255 | { |
1627 | { |
1256 | once->cb = cb; |
1628 | once->cb = cb; |
1257 | once->arg = arg; |
1629 | once->arg = arg; |
1258 | |
1630 | |
1259 | ev_watcher_init (&once->io, once_cb_io); |
1631 | ev_init (&once->io, once_cb_io); |
1260 | if (fd >= 0) |
1632 | if (fd >= 0) |
1261 | { |
1633 | { |
1262 | ev_io_set (&once->io, fd, events); |
1634 | ev_io_set (&once->io, fd, events); |
1263 | ev_io_start (EV_A_ &once->io); |
1635 | ev_io_start (EV_A_ &once->io); |
1264 | } |
1636 | } |
1265 | |
1637 | |
1266 | ev_watcher_init (&once->to, once_cb_to); |
1638 | ev_init (&once->to, once_cb_to); |
1267 | if (timeout >= 0.) |
1639 | if (timeout >= 0.) |
1268 | { |
1640 | { |
1269 | ev_timer_set (&once->to, timeout, 0.); |
1641 | ev_timer_set (&once->to, timeout, 0.); |
1270 | ev_timer_start (EV_A_ &once->to); |
1642 | ev_timer_start (EV_A_ &once->to); |
1271 | } |
1643 | } |
1272 | } |
1644 | } |
1273 | } |
1645 | } |
1274 | |
1646 | |
1275 | /*****************************************************************************/ |
1647 | #ifdef __cplusplus |
1276 | |
|
|
1277 | #if 0 |
|
|
1278 | |
|
|
1279 | struct ev_io wio; |
|
|
1280 | |
|
|
1281 | static void |
|
|
1282 | sin_cb (struct ev_io *w, int revents) |
|
|
1283 | { |
|
|
1284 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1285 | } |
1648 | } |
1286 | |
|
|
1287 | static void |
|
|
1288 | ocb (struct ev_timer *w, int revents) |
|
|
1289 | { |
|
|
1290 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1291 | ev_timer_stop (w); |
|
|
1292 | ev_timer_start (w); |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | static void |
|
|
1296 | scb (struct ev_signal *w, int revents) |
|
|
1297 | { |
|
|
1298 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1299 | ev_io_stop (&wio); |
|
|
1300 | ev_io_start (&wio); |
|
|
1301 | } |
|
|
1302 | |
|
|
1303 | static void |
|
|
1304 | gcb (struct ev_signal *w, int revents) |
|
|
1305 | { |
|
|
1306 | fprintf (stderr, "generic %x\n", revents); |
|
|
1307 | |
|
|
1308 | } |
|
|
1309 | |
|
|
1310 | int main (void) |
|
|
1311 | { |
|
|
1312 | ev_init (0); |
|
|
1313 | |
|
|
1314 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1315 | ev_io_start (&wio); |
|
|
1316 | |
|
|
1317 | struct ev_timer t[10000]; |
|
|
1318 | |
|
|
1319 | #if 0 |
|
|
1320 | int i; |
|
|
1321 | for (i = 0; i < 10000; ++i) |
|
|
1322 | { |
|
|
1323 | struct ev_timer *w = t + i; |
|
|
1324 | ev_watcher_init (w, ocb, i); |
|
|
1325 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1326 | ev_timer_start (w); |
|
|
1327 | if (drand48 () < 0.5) |
|
|
1328 | ev_timer_stop (w); |
|
|
1329 | } |
|
|
1330 | #endif |
1649 | #endif |
1331 | |
1650 | |
1332 | struct ev_timer t1; |
|
|
1333 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1334 | ev_timer_start (&t1); |
|
|
1335 | |
|
|
1336 | struct ev_signal sig; |
|
|
1337 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1338 | ev_signal_start (&sig); |
|
|
1339 | |
|
|
1340 | struct ev_check cw; |
|
|
1341 | ev_check_init (&cw, gcb); |
|
|
1342 | ev_check_start (&cw); |
|
|
1343 | |
|
|
1344 | struct ev_idle iw; |
|
|
1345 | ev_idle_init (&iw, gcb); |
|
|
1346 | ev_idle_start (&iw); |
|
|
1347 | |
|
|
1348 | ev_loop (0); |
|
|
1349 | |
|
|
1350 | return 0; |
|
|
1351 | } |
|
|
1352 | |
|
|
1353 | #endif |
|
|
1354 | |
|
|
1355 | |
|
|
1356 | |
|
|
1357 | |
|
|