… | |
… | |
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 |
|
|
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
32 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
33 | |
42 | |
34 | # if HAVE_CLOCK_GETTIME |
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
48 | # define EV_USE_REALTIME 1 |
|
|
49 | # endif |
|
|
50 | # else |
|
|
51 | # ifndef EV_USE_MONOTONIC |
|
|
52 | # define EV_USE_MONOTONIC 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_REALTIME |
|
|
55 | # define EV_USE_REALTIME 0 |
|
|
56 | # endif |
37 | # endif |
57 | # endif |
38 | |
58 | |
|
|
59 | # ifndef EV_USE_SELECT |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
40 | # define EV_USE_SELECT 1 |
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
41 | # endif |
65 | # endif |
42 | |
66 | |
|
|
67 | # ifndef EV_USE_POLL |
43 | # if HAVE_POLL && HAVE_POLL_H |
68 | # if HAVE_POLL && HAVE_POLL_H |
44 | # define EV_USE_POLL 1 |
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
45 | # endif |
73 | # endif |
46 | |
74 | |
|
|
75 | # ifndef EV_USE_EPOLL |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
48 | # define EV_USE_EPOLL 1 |
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
49 | # endif |
81 | # endif |
50 | |
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
52 | # define EV_USE_KQUEUE 1 |
85 | # define EV_USE_KQUEUE 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_KQUEUE 0 |
|
|
88 | # endif |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # ifndef EV_USE_PORT |
|
|
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
93 | # define EV_USE_PORT 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_PORT 0 |
|
|
96 | # endif |
53 | # endif |
97 | # endif |
54 | |
98 | |
55 | #endif |
99 | #endif |
56 | |
100 | |
57 | #include <math.h> |
101 | #include <math.h> |
58 | #include <stdlib.h> |
102 | #include <stdlib.h> |
59 | #include <unistd.h> |
|
|
60 | #include <fcntl.h> |
103 | #include <fcntl.h> |
61 | #include <signal.h> |
|
|
62 | #include <stddef.h> |
104 | #include <stddef.h> |
63 | |
105 | |
64 | #include <stdio.h> |
106 | #include <stdio.h> |
65 | |
107 | |
66 | #include <assert.h> |
108 | #include <assert.h> |
67 | #include <errno.h> |
109 | #include <errno.h> |
68 | #include <sys/types.h> |
110 | #include <sys/types.h> |
|
|
111 | #include <time.h> |
|
|
112 | |
|
|
113 | #include <signal.h> |
|
|
114 | |
69 | #ifndef WIN32 |
115 | #ifndef _WIN32 |
|
|
116 | # include <unistd.h> |
|
|
117 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
118 | # include <sys/wait.h> |
|
|
119 | #else |
|
|
120 | # define WIN32_LEAN_AND_MEAN |
|
|
121 | # include <windows.h> |
|
|
122 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
123 | # define EV_SELECT_IS_WINSOCKET 1 |
71 | #endif |
124 | # endif |
72 | #include <sys/time.h> |
125 | #endif |
73 | #include <time.h> |
|
|
74 | |
126 | |
75 | /**/ |
127 | /**/ |
76 | |
128 | |
77 | #ifndef EV_USE_MONOTONIC |
129 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
130 | # define EV_USE_MONOTONIC 0 |
|
|
131 | #endif |
|
|
132 | |
|
|
133 | #ifndef EV_USE_REALTIME |
|
|
134 | # define EV_USE_REALTIME 0 |
79 | #endif |
135 | #endif |
80 | |
136 | |
81 | #ifndef EV_USE_SELECT |
137 | #ifndef EV_USE_SELECT |
82 | # define EV_USE_SELECT 1 |
138 | # define EV_USE_SELECT 1 |
83 | #endif |
139 | #endif |
84 | |
140 | |
85 | #ifndef EV_USE_POLL |
141 | #ifndef EV_USE_POLL |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
142 | # ifdef _WIN32 |
|
|
143 | # define EV_USE_POLL 0 |
|
|
144 | # else |
|
|
145 | # define EV_USE_POLL 1 |
|
|
146 | # endif |
87 | #endif |
147 | #endif |
88 | |
148 | |
89 | #ifndef EV_USE_EPOLL |
149 | #ifndef EV_USE_EPOLL |
90 | # define EV_USE_EPOLL 0 |
150 | # define EV_USE_EPOLL 0 |
91 | #endif |
151 | #endif |
92 | |
152 | |
93 | #ifndef EV_USE_KQUEUE |
153 | #ifndef EV_USE_KQUEUE |
94 | # define EV_USE_KQUEUE 0 |
154 | # define EV_USE_KQUEUE 0 |
95 | #endif |
155 | #endif |
96 | |
156 | |
97 | #ifndef EV_USE_WIN32 |
|
|
98 | # ifdef WIN32 |
|
|
99 | # define EV_USE_WIN32 1 |
|
|
100 | # else |
|
|
101 | # define EV_USE_WIN32 0 |
|
|
102 | # endif |
|
|
103 | #endif |
|
|
104 | |
|
|
105 | #ifndef EV_USE_REALTIME |
157 | #ifndef EV_USE_PORT |
106 | # define EV_USE_REALTIME 1 |
158 | # define EV_USE_PORT 0 |
107 | #endif |
159 | #endif |
108 | |
160 | |
109 | /**/ |
161 | /**/ |
110 | |
162 | |
111 | #ifndef CLOCK_MONOTONIC |
163 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
116 | #ifndef CLOCK_REALTIME |
168 | #ifndef CLOCK_REALTIME |
117 | # undef EV_USE_REALTIME |
169 | # undef EV_USE_REALTIME |
118 | # define EV_USE_REALTIME 0 |
170 | # define EV_USE_REALTIME 0 |
119 | #endif |
171 | #endif |
120 | |
172 | |
|
|
173 | #if EV_SELECT_IS_WINSOCKET |
|
|
174 | # include <winsock.h> |
|
|
175 | #endif |
|
|
176 | |
121 | /**/ |
177 | /**/ |
122 | |
178 | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
124 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
125 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
126 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
127 | |
183 | |
|
|
184 | #ifdef EV_H |
|
|
185 | # include EV_H |
|
|
186 | #else |
128 | #include "ev.h" |
187 | # include "ev.h" |
|
|
188 | #endif |
129 | |
189 | |
130 | #if __GNUC__ >= 3 |
190 | #if __GNUC__ >= 3 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
132 | # define inline inline |
192 | # define inline static inline |
133 | #else |
193 | #else |
134 | # define expect(expr,value) (expr) |
194 | # define expect(expr,value) (expr) |
135 | # define inline static |
195 | # define inline static |
136 | #endif |
196 | #endif |
137 | |
197 | |
… | |
… | |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
199 | #define expect_true(expr) expect ((expr) != 0, 1) |
140 | |
200 | |
141 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
201 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
142 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
202 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
143 | |
203 | |
|
|
204 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
205 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
206 | |
144 | typedef struct ev_watcher *W; |
207 | typedef ev_watcher *W; |
145 | typedef struct ev_watcher_list *WL; |
208 | typedef ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
209 | typedef ev_watcher_time *WT; |
147 | |
210 | |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
211 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
149 | |
212 | |
150 | #if WIN32 |
213 | #ifdef _WIN32 |
151 | /* note: the comment below could not be substantiated, but what would I care */ |
214 | # include "ev_win32.c" |
152 | /* MSDN says this is required to handle SIGFPE */ |
|
|
153 | volatile double SIGFPE_REQ = 0.0f; |
|
|
154 | #endif |
215 | #endif |
155 | |
216 | |
156 | /*****************************************************************************/ |
217 | /*****************************************************************************/ |
157 | |
218 | |
158 | static void (*syserr_cb)(void); |
219 | static void (*syserr_cb)(const char *msg); |
159 | |
220 | |
160 | void ev_set_syserr_cb (void (*cb)(void)) |
221 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
161 | { |
222 | { |
162 | syserr_cb = cb; |
223 | syserr_cb = cb; |
163 | } |
224 | } |
164 | |
225 | |
165 | static void |
226 | static void |
166 | syserr (void) |
227 | syserr (const char *msg) |
167 | { |
228 | { |
|
|
229 | if (!msg) |
|
|
230 | msg = "(libev) system error"; |
|
|
231 | |
168 | if (syserr_cb) |
232 | if (syserr_cb) |
169 | syserr_cb (); |
233 | syserr_cb (msg); |
170 | else |
234 | else |
171 | { |
235 | { |
172 | perror ("libev"); |
236 | perror (msg); |
173 | abort (); |
237 | abort (); |
174 | } |
238 | } |
175 | } |
239 | } |
176 | |
240 | |
177 | static void *(*alloc)(void *ptr, long size); |
241 | static void *(*alloc)(void *ptr, long size); |
… | |
… | |
203 | typedef struct |
267 | typedef struct |
204 | { |
268 | { |
205 | WL head; |
269 | WL head; |
206 | unsigned char events; |
270 | unsigned char events; |
207 | unsigned char reify; |
271 | unsigned char reify; |
|
|
272 | #if EV_SELECT_IS_WINSOCKET |
|
|
273 | SOCKET handle; |
|
|
274 | #endif |
208 | } ANFD; |
275 | } ANFD; |
209 | |
276 | |
210 | typedef struct |
277 | typedef struct |
211 | { |
278 | { |
212 | W w; |
279 | W w; |
213 | int events; |
280 | int events; |
214 | } ANPENDING; |
281 | } ANPENDING; |
215 | |
282 | |
216 | #if EV_MULTIPLICITY |
283 | #if EV_MULTIPLICITY |
217 | |
284 | |
218 | struct ev_loop |
285 | struct ev_loop |
219 | { |
286 | { |
|
|
287 | ev_tstamp ev_rt_now; |
|
|
288 | #define ev_rt_now ((loop)->ev_rt_now) |
220 | # define VAR(name,decl) decl; |
289 | #define VAR(name,decl) decl; |
221 | # include "ev_vars.h" |
290 | #include "ev_vars.h" |
222 | }; |
|
|
223 | # undef VAR |
291 | #undef VAR |
|
|
292 | }; |
224 | # include "ev_wrap.h" |
293 | #include "ev_wrap.h" |
|
|
294 | |
|
|
295 | static struct ev_loop default_loop_struct; |
|
|
296 | struct ev_loop *ev_default_loop_ptr; |
225 | |
297 | |
226 | #else |
298 | #else |
227 | |
299 | |
|
|
300 | ev_tstamp ev_rt_now; |
228 | # define VAR(name,decl) static decl; |
301 | #define VAR(name,decl) static decl; |
229 | # include "ev_vars.h" |
302 | #include "ev_vars.h" |
230 | # undef VAR |
303 | #undef VAR |
|
|
304 | |
|
|
305 | static int ev_default_loop_ptr; |
231 | |
306 | |
232 | #endif |
307 | #endif |
233 | |
308 | |
234 | /*****************************************************************************/ |
309 | /*****************************************************************************/ |
235 | |
310 | |
236 | inline ev_tstamp |
311 | ev_tstamp |
237 | ev_time (void) |
312 | ev_time (void) |
238 | { |
313 | { |
239 | #if EV_USE_REALTIME |
314 | #if EV_USE_REALTIME |
240 | struct timespec ts; |
315 | struct timespec ts; |
241 | clock_gettime (CLOCK_REALTIME, &ts); |
316 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
260 | #endif |
335 | #endif |
261 | |
336 | |
262 | return ev_time (); |
337 | return ev_time (); |
263 | } |
338 | } |
264 | |
339 | |
|
|
340 | #if EV_MULTIPLICITY |
265 | ev_tstamp |
341 | ev_tstamp |
266 | ev_now (EV_P) |
342 | ev_now (EV_P) |
267 | { |
343 | { |
268 | return rt_now; |
344 | return ev_rt_now; |
269 | } |
345 | } |
|
|
346 | #endif |
270 | |
347 | |
271 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
272 | |
349 | |
273 | #define array_needsize(base,cur,cnt,init) \ |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
274 | if (expect_false ((cnt) > cur)) \ |
351 | if (expect_false ((cnt) > cur)) \ |
275 | { \ |
352 | { \ |
276 | int newcnt = cur; \ |
353 | int newcnt = cur; \ |
277 | do \ |
354 | do \ |
278 | { \ |
355 | { \ |
279 | newcnt = array_roundsize (base, newcnt << 1); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
280 | } \ |
357 | } \ |
281 | while ((cnt) > newcnt); \ |
358 | while ((cnt) > newcnt); \ |
282 | \ |
359 | \ |
283 | base = ev_realloc (base, sizeof (*base) * (newcnt)); \ |
360 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
284 | init (base + cur, newcnt - cur); \ |
361 | init (base + cur, newcnt - cur); \ |
285 | cur = newcnt; \ |
362 | cur = newcnt; \ |
286 | } |
363 | } |
287 | |
364 | |
288 | #define array_slim(stem) \ |
365 | #define array_slim(type,stem) \ |
289 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
366 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
290 | { \ |
367 | { \ |
291 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
368 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
292 | base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ |
369 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
293 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
370 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
294 | } |
371 | } |
295 | |
372 | |
296 | #define array_free(stem, idx) \ |
373 | #define array_free(stem, idx) \ |
297 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
… | |
… | |
309 | |
386 | |
310 | ++base; |
387 | ++base; |
311 | } |
388 | } |
312 | } |
389 | } |
313 | |
390 | |
314 | static void |
391 | void |
315 | event (EV_P_ W w, int events) |
392 | ev_feed_event (EV_P_ void *w, int revents) |
316 | { |
393 | { |
317 | if (w->pending) |
394 | W w_ = (W)w; |
|
|
395 | |
|
|
396 | if (expect_false (w_->pending)) |
318 | { |
397 | { |
319 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
320 | return; |
399 | return; |
321 | } |
400 | } |
322 | |
401 | |
323 | w->pending = ++pendingcnt [ABSPRI (w)]; |
402 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
324 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
403 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
325 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
404 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
326 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
405 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
327 | } |
406 | } |
328 | |
407 | |
329 | static void |
408 | static void |
330 | queue_events (EV_P_ W *events, int eventcnt, int type) |
409 | queue_events (EV_P_ W *events, int eventcnt, int type) |
331 | { |
410 | { |
332 | int i; |
411 | int i; |
333 | |
412 | |
334 | for (i = 0; i < eventcnt; ++i) |
413 | for (i = 0; i < eventcnt; ++i) |
335 | event (EV_A_ events [i], type); |
414 | ev_feed_event (EV_A_ events [i], type); |
336 | } |
415 | } |
337 | |
416 | |
338 | static void |
417 | inline void |
339 | fd_event (EV_P_ int fd, int events) |
418 | fd_event (EV_P_ int fd, int revents) |
340 | { |
419 | { |
341 | ANFD *anfd = anfds + fd; |
420 | ANFD *anfd = anfds + fd; |
342 | struct ev_io *w; |
421 | ev_io *w; |
343 | |
422 | |
344 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
423 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
345 | { |
424 | { |
346 | int ev = w->events & events; |
425 | int ev = w->events & revents; |
347 | |
426 | |
348 | if (ev) |
427 | if (ev) |
349 | event (EV_A_ (W)w, ev); |
428 | ev_feed_event (EV_A_ (W)w, ev); |
350 | } |
429 | } |
|
|
430 | } |
|
|
431 | |
|
|
432 | void |
|
|
433 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
434 | { |
|
|
435 | fd_event (EV_A_ fd, revents); |
351 | } |
436 | } |
352 | |
437 | |
353 | /*****************************************************************************/ |
438 | /*****************************************************************************/ |
354 | |
439 | |
355 | static void |
440 | inline void |
356 | fd_reify (EV_P) |
441 | fd_reify (EV_P) |
357 | { |
442 | { |
358 | int i; |
443 | int i; |
359 | |
444 | |
360 | for (i = 0; i < fdchangecnt; ++i) |
445 | for (i = 0; i < fdchangecnt; ++i) |
361 | { |
446 | { |
362 | int fd = fdchanges [i]; |
447 | int fd = fdchanges [i]; |
363 | ANFD *anfd = anfds + fd; |
448 | ANFD *anfd = anfds + fd; |
364 | struct ev_io *w; |
449 | ev_io *w; |
365 | |
450 | |
366 | int events = 0; |
451 | int events = 0; |
367 | |
452 | |
368 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
453 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
369 | events |= w->events; |
454 | events |= w->events; |
370 | |
455 | |
|
|
456 | #if EV_SELECT_IS_WINSOCKET |
|
|
457 | if (events) |
|
|
458 | { |
|
|
459 | unsigned long argp; |
|
|
460 | anfd->handle = _get_osfhandle (fd); |
|
|
461 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
462 | } |
|
|
463 | #endif |
|
|
464 | |
371 | anfd->reify = 0; |
465 | anfd->reify = 0; |
372 | |
466 | |
373 | method_modify (EV_A_ fd, anfd->events, events); |
467 | backend_modify (EV_A_ fd, anfd->events, events); |
374 | anfd->events = events; |
468 | anfd->events = events; |
375 | } |
469 | } |
376 | |
470 | |
377 | fdchangecnt = 0; |
471 | fdchangecnt = 0; |
378 | } |
472 | } |
379 | |
473 | |
380 | static void |
474 | static void |
381 | fd_change (EV_P_ int fd) |
475 | fd_change (EV_P_ int fd) |
382 | { |
476 | { |
383 | if (anfds [fd].reify || fdchangecnt < 0) |
477 | if (expect_false (anfds [fd].reify)) |
384 | return; |
478 | return; |
385 | |
479 | |
386 | anfds [fd].reify = 1; |
480 | anfds [fd].reify = 1; |
387 | |
481 | |
388 | ++fdchangecnt; |
482 | ++fdchangecnt; |
389 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
483 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
390 | fdchanges [fdchangecnt - 1] = fd; |
484 | fdchanges [fdchangecnt - 1] = fd; |
391 | } |
485 | } |
392 | |
486 | |
393 | static void |
487 | static void |
394 | fd_kill (EV_P_ int fd) |
488 | fd_kill (EV_P_ int fd) |
395 | { |
489 | { |
396 | struct ev_io *w; |
490 | ev_io *w; |
397 | |
491 | |
398 | while ((w = (struct ev_io *)anfds [fd].head)) |
492 | while ((w = (ev_io *)anfds [fd].head)) |
399 | { |
493 | { |
400 | ev_io_stop (EV_A_ w); |
494 | ev_io_stop (EV_A_ w); |
401 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
495 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
402 | } |
496 | } |
|
|
497 | } |
|
|
498 | |
|
|
499 | inline int |
|
|
500 | fd_valid (int fd) |
|
|
501 | { |
|
|
502 | #ifdef _WIN32 |
|
|
503 | return _get_osfhandle (fd) != -1; |
|
|
504 | #else |
|
|
505 | return fcntl (fd, F_GETFD) != -1; |
|
|
506 | #endif |
403 | } |
507 | } |
404 | |
508 | |
405 | /* called on EBADF to verify fds */ |
509 | /* called on EBADF to verify fds */ |
406 | static void |
510 | static void |
407 | fd_ebadf (EV_P) |
511 | fd_ebadf (EV_P) |
408 | { |
512 | { |
409 | int fd; |
513 | int fd; |
410 | |
514 | |
411 | for (fd = 0; fd < anfdmax; ++fd) |
515 | for (fd = 0; fd < anfdmax; ++fd) |
412 | if (anfds [fd].events) |
516 | if (anfds [fd].events) |
413 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
517 | if (!fd_valid (fd) == -1 && errno == EBADF) |
414 | fd_kill (EV_A_ fd); |
518 | fd_kill (EV_A_ fd); |
415 | } |
519 | } |
416 | |
520 | |
417 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
521 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
418 | static void |
522 | static void |
… | |
… | |
426 | fd_kill (EV_A_ fd); |
530 | fd_kill (EV_A_ fd); |
427 | return; |
531 | return; |
428 | } |
532 | } |
429 | } |
533 | } |
430 | |
534 | |
431 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
535 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
432 | static void |
536 | static void |
433 | fd_rearm_all (EV_P) |
537 | fd_rearm_all (EV_P) |
434 | { |
538 | { |
435 | int fd; |
539 | int fd; |
436 | |
540 | |
… | |
… | |
484 | |
588 | |
485 | heap [k] = w; |
589 | heap [k] = w; |
486 | ((W)heap [k])->active = k + 1; |
590 | ((W)heap [k])->active = k + 1; |
487 | } |
591 | } |
488 | |
592 | |
|
|
593 | inline void |
|
|
594 | adjustheap (WT *heap, int N, int k) |
|
|
595 | { |
|
|
596 | upheap (heap, k); |
|
|
597 | downheap (heap, N, k); |
|
|
598 | } |
|
|
599 | |
489 | /*****************************************************************************/ |
600 | /*****************************************************************************/ |
490 | |
601 | |
491 | typedef struct |
602 | typedef struct |
492 | { |
603 | { |
493 | WL head; |
604 | WL head; |
… | |
… | |
497 | static ANSIG *signals; |
608 | static ANSIG *signals; |
498 | static int signalmax; |
609 | static int signalmax; |
499 | |
610 | |
500 | static int sigpipe [2]; |
611 | static int sigpipe [2]; |
501 | static sig_atomic_t volatile gotsig; |
612 | static sig_atomic_t volatile gotsig; |
502 | static struct ev_io sigev; |
613 | static ev_io sigev; |
503 | |
614 | |
504 | static void |
615 | static void |
505 | signals_init (ANSIG *base, int count) |
616 | signals_init (ANSIG *base, int count) |
506 | { |
617 | { |
507 | while (count--) |
618 | while (count--) |
… | |
… | |
514 | } |
625 | } |
515 | |
626 | |
516 | static void |
627 | static void |
517 | sighandler (int signum) |
628 | sighandler (int signum) |
518 | { |
629 | { |
519 | #if WIN32 |
630 | #if _WIN32 |
520 | signal (signum, sighandler); |
631 | signal (signum, sighandler); |
521 | #endif |
632 | #endif |
522 | |
633 | |
523 | signals [signum - 1].gotsig = 1; |
634 | signals [signum - 1].gotsig = 1; |
524 | |
635 | |
… | |
… | |
529 | write (sigpipe [1], &signum, 1); |
640 | write (sigpipe [1], &signum, 1); |
530 | errno = old_errno; |
641 | errno = old_errno; |
531 | } |
642 | } |
532 | } |
643 | } |
533 | |
644 | |
534 | static void |
645 | void |
535 | sigcb (EV_P_ struct ev_io *iow, int revents) |
646 | ev_feed_signal_event (EV_P_ int signum) |
536 | { |
647 | { |
537 | WL w; |
648 | WL w; |
|
|
649 | |
|
|
650 | #if EV_MULTIPLICITY |
|
|
651 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
652 | #endif |
|
|
653 | |
|
|
654 | --signum; |
|
|
655 | |
|
|
656 | if (signum < 0 || signum >= signalmax) |
|
|
657 | return; |
|
|
658 | |
|
|
659 | signals [signum].gotsig = 0; |
|
|
660 | |
|
|
661 | for (w = signals [signum].head; w; w = w->next) |
|
|
662 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
663 | } |
|
|
664 | |
|
|
665 | static void |
|
|
666 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
667 | { |
538 | int signum; |
668 | int signum; |
539 | |
669 | |
540 | read (sigpipe [0], &revents, 1); |
670 | read (sigpipe [0], &revents, 1); |
541 | gotsig = 0; |
671 | gotsig = 0; |
542 | |
672 | |
543 | for (signum = signalmax; signum--; ) |
673 | for (signum = signalmax; signum--; ) |
544 | if (signals [signum].gotsig) |
674 | if (signals [signum].gotsig) |
545 | { |
675 | ev_feed_signal_event (EV_A_ signum + 1); |
546 | signals [signum].gotsig = 0; |
676 | } |
547 | |
677 | |
548 | for (w = signals [signum].head; w; w = w->next) |
678 | static void |
549 | event (EV_A_ (W)w, EV_SIGNAL); |
679 | fd_intern (int fd) |
550 | } |
680 | { |
|
|
681 | #ifdef _WIN32 |
|
|
682 | int arg = 1; |
|
|
683 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
684 | #else |
|
|
685 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
686 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
687 | #endif |
551 | } |
688 | } |
552 | |
689 | |
553 | static void |
690 | static void |
554 | siginit (EV_P) |
691 | siginit (EV_P) |
555 | { |
692 | { |
556 | #ifndef WIN32 |
693 | fd_intern (sigpipe [0]); |
557 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
694 | fd_intern (sigpipe [1]); |
558 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
559 | |
|
|
560 | /* rather than sort out wether we really need nb, set it */ |
|
|
561 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
562 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
563 | #endif |
|
|
564 | |
695 | |
565 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
696 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
566 | ev_io_start (EV_A_ &sigev); |
697 | ev_io_start (EV_A_ &sigev); |
567 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
698 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
568 | } |
699 | } |
569 | |
700 | |
570 | /*****************************************************************************/ |
701 | /*****************************************************************************/ |
571 | |
702 | |
|
|
703 | static ev_child *childs [PID_HASHSIZE]; |
|
|
704 | |
572 | #ifndef WIN32 |
705 | #ifndef _WIN32 |
573 | |
706 | |
574 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
575 | static struct ev_signal childev; |
707 | static ev_signal childev; |
576 | |
708 | |
577 | #ifndef WCONTINUED |
709 | #ifndef WCONTINUED |
578 | # define WCONTINUED 0 |
710 | # define WCONTINUED 0 |
579 | #endif |
711 | #endif |
580 | |
712 | |
581 | static void |
713 | static void |
582 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
714 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
583 | { |
715 | { |
584 | struct ev_child *w; |
716 | ev_child *w; |
585 | |
717 | |
586 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
718 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
587 | if (w->pid == pid || !w->pid) |
719 | if (w->pid == pid || !w->pid) |
588 | { |
720 | { |
589 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
721 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
590 | w->rpid = pid; |
722 | w->rpid = pid; |
591 | w->rstatus = status; |
723 | w->rstatus = status; |
592 | event (EV_A_ (W)w, EV_CHILD); |
724 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
593 | } |
725 | } |
594 | } |
726 | } |
595 | |
727 | |
596 | static void |
728 | static void |
597 | childcb (EV_P_ struct ev_signal *sw, int revents) |
729 | childcb (EV_P_ ev_signal *sw, int revents) |
598 | { |
730 | { |
599 | int pid, status; |
731 | int pid, status; |
600 | |
732 | |
601 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
733 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
602 | { |
734 | { |
603 | /* make sure we are called again until all childs have been reaped */ |
735 | /* make sure we are called again until all childs have been reaped */ |
|
|
736 | /* we need to do it this way so that the callback gets called before we continue */ |
604 | event (EV_A_ (W)sw, EV_SIGNAL); |
737 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
605 | |
738 | |
606 | child_reap (EV_A_ sw, pid, pid, status); |
739 | child_reap (EV_A_ sw, pid, pid, status); |
607 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
740 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
608 | } |
741 | } |
609 | } |
742 | } |
610 | |
743 | |
611 | #endif |
744 | #endif |
612 | |
745 | |
613 | /*****************************************************************************/ |
746 | /*****************************************************************************/ |
614 | |
747 | |
|
|
748 | #if EV_USE_PORT |
|
|
749 | # include "ev_port.c" |
|
|
750 | #endif |
615 | #if EV_USE_KQUEUE |
751 | #if EV_USE_KQUEUE |
616 | # include "ev_kqueue.c" |
752 | # include "ev_kqueue.c" |
617 | #endif |
753 | #endif |
618 | #if EV_USE_EPOLL |
754 | #if EV_USE_EPOLL |
619 | # include "ev_epoll.c" |
755 | # include "ev_epoll.c" |
… | |
… | |
639 | |
775 | |
640 | /* return true if we are running with elevated privileges and should ignore env variables */ |
776 | /* return true if we are running with elevated privileges and should ignore env variables */ |
641 | static int |
777 | static int |
642 | enable_secure (void) |
778 | enable_secure (void) |
643 | { |
779 | { |
644 | #ifdef WIN32 |
780 | #ifdef _WIN32 |
645 | return 0; |
781 | return 0; |
646 | #else |
782 | #else |
647 | return getuid () != geteuid () |
783 | return getuid () != geteuid () |
648 | || getgid () != getegid (); |
784 | || getgid () != getegid (); |
649 | #endif |
785 | #endif |
650 | } |
786 | } |
651 | |
787 | |
652 | int |
788 | unsigned int |
653 | ev_method (EV_P) |
789 | ev_supported_backends (void) |
654 | { |
790 | { |
655 | return method; |
791 | unsigned int flags = 0; |
656 | } |
|
|
657 | |
792 | |
658 | static void |
793 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
659 | loop_init (EV_P_ int methods) |
794 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
795 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
796 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
797 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
798 | |
|
|
799 | return flags; |
|
|
800 | } |
|
|
801 | |
|
|
802 | unsigned int |
|
|
803 | ev_recommended_backends (void) |
660 | { |
804 | { |
661 | if (!method) |
805 | unsigned int flags = ev_supported_backends (); |
|
|
806 | |
|
|
807 | #ifndef __NetBSD__ |
|
|
808 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
809 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
810 | flags &= ~EVBACKEND_KQUEUE; |
|
|
811 | #endif |
|
|
812 | #ifdef __APPLE__ |
|
|
813 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
814 | flags &= ~EVBACKEND_POLL; |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | return flags; |
|
|
818 | } |
|
|
819 | |
|
|
820 | unsigned int |
|
|
821 | ev_embeddable_backends (void) |
|
|
822 | { |
|
|
823 | return EVBACKEND_EPOLL |
|
|
824 | | EVBACKEND_KQUEUE |
|
|
825 | | EVBACKEND_PORT; |
|
|
826 | } |
|
|
827 | |
|
|
828 | unsigned int |
|
|
829 | ev_backend (EV_P) |
|
|
830 | { |
|
|
831 | return backend; |
|
|
832 | } |
|
|
833 | |
|
|
834 | static void |
|
|
835 | loop_init (EV_P_ unsigned int flags) |
|
|
836 | { |
|
|
837 | if (!backend) |
662 | { |
838 | { |
663 | #if EV_USE_MONOTONIC |
839 | #if EV_USE_MONOTONIC |
664 | { |
840 | { |
665 | struct timespec ts; |
841 | struct timespec ts; |
666 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
842 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
667 | have_monotonic = 1; |
843 | have_monotonic = 1; |
668 | } |
844 | } |
669 | #endif |
845 | #endif |
670 | |
846 | |
671 | rt_now = ev_time (); |
847 | ev_rt_now = ev_time (); |
672 | mn_now = get_clock (); |
848 | mn_now = get_clock (); |
673 | now_floor = mn_now; |
849 | now_floor = mn_now; |
674 | rtmn_diff = rt_now - mn_now; |
850 | rtmn_diff = ev_rt_now - mn_now; |
675 | |
851 | |
676 | if (methods == EVMETHOD_AUTO) |
852 | if (!(flags & EVFLAG_NOENV) |
677 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
853 | && !enable_secure () |
|
|
854 | && getenv ("LIBEV_FLAGS")) |
678 | methods = atoi (getenv ("LIBEV_METHODS")); |
855 | flags = atoi (getenv ("LIBEV_FLAGS")); |
679 | else |
|
|
680 | methods = EVMETHOD_ANY; |
|
|
681 | |
856 | |
682 | method = 0; |
857 | if (!(flags & 0x0000ffffUL)) |
683 | #if EV_USE_WIN32 |
858 | flags |= ev_recommended_backends (); |
684 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
859 | |
|
|
860 | backend = 0; |
|
|
861 | #if EV_USE_PORT |
|
|
862 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
685 | #endif |
863 | #endif |
686 | #if EV_USE_KQUEUE |
864 | #if EV_USE_KQUEUE |
687 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
865 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
688 | #endif |
866 | #endif |
689 | #if EV_USE_EPOLL |
867 | #if EV_USE_EPOLL |
690 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
868 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
691 | #endif |
869 | #endif |
692 | #if EV_USE_POLL |
870 | #if EV_USE_POLL |
693 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
871 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
694 | #endif |
872 | #endif |
695 | #if EV_USE_SELECT |
873 | #if EV_USE_SELECT |
696 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
874 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
697 | #endif |
875 | #endif |
698 | } |
|
|
699 | } |
|
|
700 | |
876 | |
701 | void |
877 | ev_init (&sigev, sigcb); |
|
|
878 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
879 | } |
|
|
880 | } |
|
|
881 | |
|
|
882 | static void |
702 | loop_destroy (EV_P) |
883 | loop_destroy (EV_P) |
703 | { |
884 | { |
704 | int i; |
885 | int i; |
705 | |
886 | |
706 | #if EV_USE_WIN32 |
887 | #if EV_USE_PORT |
707 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
888 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
708 | #endif |
889 | #endif |
709 | #if EV_USE_KQUEUE |
890 | #if EV_USE_KQUEUE |
710 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
891 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
711 | #endif |
892 | #endif |
712 | #if EV_USE_EPOLL |
893 | #if EV_USE_EPOLL |
713 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
894 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
714 | #endif |
895 | #endif |
715 | #if EV_USE_POLL |
896 | #if EV_USE_POLL |
716 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
897 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
717 | #endif |
898 | #endif |
718 | #if EV_USE_SELECT |
899 | #if EV_USE_SELECT |
719 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
900 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
720 | #endif |
901 | #endif |
721 | |
902 | |
722 | for (i = NUMPRI; i--; ) |
903 | for (i = NUMPRI; i--; ) |
723 | array_free (pending, [i]); |
904 | array_free (pending, [i]); |
724 | |
905 | |
|
|
906 | /* have to use the microsoft-never-gets-it-right macro */ |
725 | array_free (fdchange, ); |
907 | array_free (fdchange, EMPTY0); |
726 | array_free (timer, ); |
908 | array_free (timer, EMPTY0); |
|
|
909 | #if EV_PERIODICS |
727 | array_free (periodic, ); |
910 | array_free (periodic, EMPTY0); |
|
|
911 | #endif |
728 | array_free (idle, ); |
912 | array_free (idle, EMPTY0); |
729 | array_free (prepare, ); |
913 | array_free (prepare, EMPTY0); |
730 | array_free (check, ); |
914 | array_free (check, EMPTY0); |
731 | |
915 | |
732 | method = 0; |
916 | backend = 0; |
733 | /*TODO*/ |
|
|
734 | } |
917 | } |
735 | |
918 | |
736 | void |
919 | static void |
737 | loop_fork (EV_P) |
920 | loop_fork (EV_P) |
738 | { |
921 | { |
739 | /*TODO*/ |
922 | #if EV_USE_PORT |
|
|
923 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
924 | #endif |
|
|
925 | #if EV_USE_KQUEUE |
|
|
926 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
927 | #endif |
740 | #if EV_USE_EPOLL |
928 | #if EV_USE_EPOLL |
741 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
929 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
742 | #endif |
930 | #endif |
743 | #if EV_USE_KQUEUE |
931 | |
744 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
932 | if (ev_is_active (&sigev)) |
745 | #endif |
933 | { |
|
|
934 | /* default loop */ |
|
|
935 | |
|
|
936 | ev_ref (EV_A); |
|
|
937 | ev_io_stop (EV_A_ &sigev); |
|
|
938 | close (sigpipe [0]); |
|
|
939 | close (sigpipe [1]); |
|
|
940 | |
|
|
941 | while (pipe (sigpipe)) |
|
|
942 | syserr ("(libev) error creating pipe"); |
|
|
943 | |
|
|
944 | siginit (EV_A); |
|
|
945 | } |
|
|
946 | |
|
|
947 | postfork = 0; |
746 | } |
948 | } |
747 | |
949 | |
748 | #if EV_MULTIPLICITY |
950 | #if EV_MULTIPLICITY |
749 | struct ev_loop * |
951 | struct ev_loop * |
750 | ev_loop_new (int methods) |
952 | ev_loop_new (unsigned int flags) |
751 | { |
953 | { |
752 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
954 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
753 | |
955 | |
754 | memset (loop, 0, sizeof (struct ev_loop)); |
956 | memset (loop, 0, sizeof (struct ev_loop)); |
755 | |
957 | |
756 | loop_init (EV_A_ methods); |
958 | loop_init (EV_A_ flags); |
757 | |
959 | |
758 | if (ev_method (EV_A)) |
960 | if (ev_backend (EV_A)) |
759 | return loop; |
961 | return loop; |
760 | |
962 | |
761 | return 0; |
963 | return 0; |
762 | } |
964 | } |
763 | |
965 | |
… | |
… | |
769 | } |
971 | } |
770 | |
972 | |
771 | void |
973 | void |
772 | ev_loop_fork (EV_P) |
974 | ev_loop_fork (EV_P) |
773 | { |
975 | { |
774 | loop_fork (EV_A); |
976 | postfork = 1; |
775 | } |
977 | } |
776 | |
978 | |
777 | #endif |
979 | #endif |
778 | |
980 | |
779 | #if EV_MULTIPLICITY |
981 | #if EV_MULTIPLICITY |
780 | struct ev_loop default_loop_struct; |
|
|
781 | static struct ev_loop *default_loop; |
|
|
782 | |
|
|
783 | struct ev_loop * |
982 | struct ev_loop * |
|
|
983 | ev_default_loop_init (unsigned int flags) |
784 | #else |
984 | #else |
785 | static int default_loop; |
|
|
786 | |
|
|
787 | int |
985 | int |
|
|
986 | ev_default_loop (unsigned int flags) |
788 | #endif |
987 | #endif |
789 | ev_default_loop (int methods) |
|
|
790 | { |
988 | { |
791 | if (sigpipe [0] == sigpipe [1]) |
989 | if (sigpipe [0] == sigpipe [1]) |
792 | if (pipe (sigpipe)) |
990 | if (pipe (sigpipe)) |
793 | return 0; |
991 | return 0; |
794 | |
992 | |
795 | if (!default_loop) |
993 | if (!ev_default_loop_ptr) |
796 | { |
994 | { |
797 | #if EV_MULTIPLICITY |
995 | #if EV_MULTIPLICITY |
798 | struct ev_loop *loop = default_loop = &default_loop_struct; |
996 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
799 | #else |
997 | #else |
800 | default_loop = 1; |
998 | ev_default_loop_ptr = 1; |
801 | #endif |
999 | #endif |
802 | |
1000 | |
803 | loop_init (EV_A_ methods); |
1001 | loop_init (EV_A_ flags); |
804 | |
1002 | |
805 | if (ev_method (EV_A)) |
1003 | if (ev_backend (EV_A)) |
806 | { |
1004 | { |
807 | ev_watcher_init (&sigev, sigcb); |
|
|
808 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
809 | siginit (EV_A); |
1005 | siginit (EV_A); |
810 | |
1006 | |
811 | #ifndef WIN32 |
1007 | #ifndef _WIN32 |
812 | ev_signal_init (&childev, childcb, SIGCHLD); |
1008 | ev_signal_init (&childev, childcb, SIGCHLD); |
813 | ev_set_priority (&childev, EV_MAXPRI); |
1009 | ev_set_priority (&childev, EV_MAXPRI); |
814 | ev_signal_start (EV_A_ &childev); |
1010 | ev_signal_start (EV_A_ &childev); |
815 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1011 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
816 | #endif |
1012 | #endif |
817 | } |
1013 | } |
818 | else |
1014 | else |
819 | default_loop = 0; |
1015 | ev_default_loop_ptr = 0; |
820 | } |
1016 | } |
821 | |
1017 | |
822 | return default_loop; |
1018 | return ev_default_loop_ptr; |
823 | } |
1019 | } |
824 | |
1020 | |
825 | void |
1021 | void |
826 | ev_default_destroy (void) |
1022 | ev_default_destroy (void) |
827 | { |
1023 | { |
828 | #if EV_MULTIPLICITY |
1024 | #if EV_MULTIPLICITY |
829 | struct ev_loop *loop = default_loop; |
1025 | struct ev_loop *loop = ev_default_loop_ptr; |
830 | #endif |
1026 | #endif |
831 | |
1027 | |
|
|
1028 | #ifndef _WIN32 |
832 | ev_ref (EV_A); /* child watcher */ |
1029 | ev_ref (EV_A); /* child watcher */ |
833 | ev_signal_stop (EV_A_ &childev); |
1030 | ev_signal_stop (EV_A_ &childev); |
|
|
1031 | #endif |
834 | |
1032 | |
835 | ev_ref (EV_A); /* signal watcher */ |
1033 | ev_ref (EV_A); /* signal watcher */ |
836 | ev_io_stop (EV_A_ &sigev); |
1034 | ev_io_stop (EV_A_ &sigev); |
837 | |
1035 | |
838 | close (sigpipe [0]); sigpipe [0] = 0; |
1036 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
843 | |
1041 | |
844 | void |
1042 | void |
845 | ev_default_fork (void) |
1043 | ev_default_fork (void) |
846 | { |
1044 | { |
847 | #if EV_MULTIPLICITY |
1045 | #if EV_MULTIPLICITY |
848 | struct ev_loop *loop = default_loop; |
1046 | struct ev_loop *loop = ev_default_loop_ptr; |
849 | #endif |
1047 | #endif |
850 | |
1048 | |
851 | loop_fork (EV_A); |
1049 | if (backend) |
852 | |
1050 | postfork = 1; |
853 | ev_io_stop (EV_A_ &sigev); |
|
|
854 | close (sigpipe [0]); |
|
|
855 | close (sigpipe [1]); |
|
|
856 | pipe (sigpipe); |
|
|
857 | |
|
|
858 | ev_ref (EV_A); /* signal watcher */ |
|
|
859 | siginit (EV_A); |
|
|
860 | } |
1051 | } |
861 | |
1052 | |
862 | /*****************************************************************************/ |
1053 | /*****************************************************************************/ |
863 | |
1054 | |
864 | static void |
1055 | static int |
|
|
1056 | any_pending (EV_P) |
|
|
1057 | { |
|
|
1058 | int pri; |
|
|
1059 | |
|
|
1060 | for (pri = NUMPRI; pri--; ) |
|
|
1061 | if (pendingcnt [pri]) |
|
|
1062 | return 1; |
|
|
1063 | |
|
|
1064 | return 0; |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | inline void |
865 | call_pending (EV_P) |
1068 | call_pending (EV_P) |
866 | { |
1069 | { |
867 | int pri; |
1070 | int pri; |
868 | |
1071 | |
869 | for (pri = NUMPRI; pri--; ) |
1072 | for (pri = NUMPRI; pri--; ) |
870 | while (pendingcnt [pri]) |
1073 | while (pendingcnt [pri]) |
871 | { |
1074 | { |
872 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1075 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
873 | |
1076 | |
874 | if (p->w) |
1077 | if (expect_true (p->w)) |
875 | { |
1078 | { |
876 | p->w->pending = 0; |
1079 | p->w->pending = 0; |
877 | p->w->cb (EV_A_ p->w, p->events); |
1080 | EV_CB_INVOKE (p->w, p->events); |
878 | } |
1081 | } |
879 | } |
1082 | } |
880 | } |
1083 | } |
881 | |
1084 | |
882 | static void |
1085 | inline void |
883 | timers_reify (EV_P) |
1086 | timers_reify (EV_P) |
884 | { |
1087 | { |
885 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1088 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
886 | { |
1089 | { |
887 | struct ev_timer *w = timers [0]; |
1090 | ev_timer *w = timers [0]; |
888 | |
1091 | |
889 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1092 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
890 | |
1093 | |
891 | /* first reschedule or stop timer */ |
1094 | /* first reschedule or stop timer */ |
892 | if (w->repeat) |
1095 | if (w->repeat) |
893 | { |
1096 | { |
894 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1097 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1098 | |
895 | ((WT)w)->at = mn_now + w->repeat; |
1099 | ((WT)w)->at += w->repeat; |
|
|
1100 | if (((WT)w)->at < mn_now) |
|
|
1101 | ((WT)w)->at = mn_now; |
|
|
1102 | |
896 | downheap ((WT *)timers, timercnt, 0); |
1103 | downheap ((WT *)timers, timercnt, 0); |
897 | } |
1104 | } |
898 | else |
1105 | else |
899 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1106 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
900 | |
1107 | |
901 | event (EV_A_ (W)w, EV_TIMEOUT); |
1108 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
902 | } |
1109 | } |
903 | } |
1110 | } |
904 | |
1111 | |
905 | static void |
1112 | #if EV_PERIODICS |
|
|
1113 | inline void |
906 | periodics_reify (EV_P) |
1114 | periodics_reify (EV_P) |
907 | { |
1115 | { |
908 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1116 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
909 | { |
1117 | { |
910 | struct ev_periodic *w = periodics [0]; |
1118 | ev_periodic *w = periodics [0]; |
911 | |
1119 | |
912 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1120 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
913 | |
1121 | |
914 | /* first reschedule or stop timer */ |
1122 | /* first reschedule or stop timer */ |
915 | if (w->interval) |
1123 | if (w->reschedule_cb) |
916 | { |
1124 | { |
|
|
1125 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1126 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1127 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1128 | } |
|
|
1129 | else if (w->interval) |
|
|
1130 | { |
917 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1131 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
918 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1132 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
919 | downheap ((WT *)periodics, periodiccnt, 0); |
1133 | downheap ((WT *)periodics, periodiccnt, 0); |
920 | } |
1134 | } |
921 | else |
1135 | else |
922 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1136 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
923 | |
1137 | |
924 | event (EV_A_ (W)w, EV_PERIODIC); |
1138 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
925 | } |
1139 | } |
926 | } |
1140 | } |
927 | |
1141 | |
928 | static void |
1142 | static void |
929 | periodics_reschedule (EV_P) |
1143 | periodics_reschedule (EV_P) |
… | |
… | |
931 | int i; |
1145 | int i; |
932 | |
1146 | |
933 | /* adjust periodics after time jump */ |
1147 | /* adjust periodics after time jump */ |
934 | for (i = 0; i < periodiccnt; ++i) |
1148 | for (i = 0; i < periodiccnt; ++i) |
935 | { |
1149 | { |
936 | struct ev_periodic *w = periodics [i]; |
1150 | ev_periodic *w = periodics [i]; |
937 | |
1151 | |
|
|
1152 | if (w->reschedule_cb) |
|
|
1153 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
938 | if (w->interval) |
1154 | else if (w->interval) |
939 | { |
|
|
940 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1155 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
941 | |
|
|
942 | if (fabs (diff) >= 1e-4) |
|
|
943 | { |
|
|
944 | ev_periodic_stop (EV_A_ w); |
|
|
945 | ev_periodic_start (EV_A_ w); |
|
|
946 | |
|
|
947 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
948 | } |
|
|
949 | } |
|
|
950 | } |
1156 | } |
|
|
1157 | |
|
|
1158 | /* now rebuild the heap */ |
|
|
1159 | for (i = periodiccnt >> 1; i--; ) |
|
|
1160 | downheap ((WT *)periodics, periodiccnt, i); |
951 | } |
1161 | } |
|
|
1162 | #endif |
952 | |
1163 | |
953 | inline int |
1164 | inline int |
954 | time_update_monotonic (EV_P) |
1165 | time_update_monotonic (EV_P) |
955 | { |
1166 | { |
956 | mn_now = get_clock (); |
1167 | mn_now = get_clock (); |
957 | |
1168 | |
958 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1169 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
959 | { |
1170 | { |
960 | rt_now = rtmn_diff + mn_now; |
1171 | ev_rt_now = rtmn_diff + mn_now; |
961 | return 0; |
1172 | return 0; |
962 | } |
1173 | } |
963 | else |
1174 | else |
964 | { |
1175 | { |
965 | now_floor = mn_now; |
1176 | now_floor = mn_now; |
966 | rt_now = ev_time (); |
1177 | ev_rt_now = ev_time (); |
967 | return 1; |
1178 | return 1; |
968 | } |
1179 | } |
969 | } |
1180 | } |
970 | |
1181 | |
971 | static void |
1182 | inline void |
972 | time_update (EV_P) |
1183 | time_update (EV_P) |
973 | { |
1184 | { |
974 | int i; |
1185 | int i; |
975 | |
1186 | |
976 | #if EV_USE_MONOTONIC |
1187 | #if EV_USE_MONOTONIC |
… | |
… | |
980 | { |
1191 | { |
981 | ev_tstamp odiff = rtmn_diff; |
1192 | ev_tstamp odiff = rtmn_diff; |
982 | |
1193 | |
983 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1194 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
984 | { |
1195 | { |
985 | rtmn_diff = rt_now - mn_now; |
1196 | rtmn_diff = ev_rt_now - mn_now; |
986 | |
1197 | |
987 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1198 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
988 | return; /* all is well */ |
1199 | return; /* all is well */ |
989 | |
1200 | |
990 | rt_now = ev_time (); |
1201 | ev_rt_now = ev_time (); |
991 | mn_now = get_clock (); |
1202 | mn_now = get_clock (); |
992 | now_floor = mn_now; |
1203 | now_floor = mn_now; |
993 | } |
1204 | } |
994 | |
1205 | |
|
|
1206 | # if EV_PERIODICS |
995 | periodics_reschedule (EV_A); |
1207 | periodics_reschedule (EV_A); |
|
|
1208 | # endif |
996 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1209 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
997 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1210 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
998 | } |
1211 | } |
999 | } |
1212 | } |
1000 | else |
1213 | else |
1001 | #endif |
1214 | #endif |
1002 | { |
1215 | { |
1003 | rt_now = ev_time (); |
1216 | ev_rt_now = ev_time (); |
1004 | |
1217 | |
1005 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1218 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1006 | { |
1219 | { |
|
|
1220 | #if EV_PERIODICS |
1007 | periodics_reschedule (EV_A); |
1221 | periodics_reschedule (EV_A); |
|
|
1222 | #endif |
1008 | |
1223 | |
1009 | /* adjust timers. this is easy, as the offset is the same for all */ |
1224 | /* adjust timers. this is easy, as the offset is the same for all */ |
1010 | for (i = 0; i < timercnt; ++i) |
1225 | for (i = 0; i < timercnt; ++i) |
1011 | ((WT)timers [i])->at += rt_now - mn_now; |
1226 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1012 | } |
1227 | } |
1013 | |
1228 | |
1014 | mn_now = rt_now; |
1229 | mn_now = ev_rt_now; |
1015 | } |
1230 | } |
1016 | } |
1231 | } |
1017 | |
1232 | |
1018 | void |
1233 | void |
1019 | ev_ref (EV_P) |
1234 | ev_ref (EV_P) |
… | |
… | |
1030 | static int loop_done; |
1245 | static int loop_done; |
1031 | |
1246 | |
1032 | void |
1247 | void |
1033 | ev_loop (EV_P_ int flags) |
1248 | ev_loop (EV_P_ int flags) |
1034 | { |
1249 | { |
1035 | double block; |
|
|
1036 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1250 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1251 | ? EVUNLOOP_ONE |
|
|
1252 | : EVUNLOOP_CANCEL; |
1037 | |
1253 | |
1038 | do |
1254 | while (activecnt) |
1039 | { |
1255 | { |
1040 | /* queue check watchers (and execute them) */ |
1256 | /* queue check watchers (and execute them) */ |
1041 | if (expect_false (preparecnt)) |
1257 | if (expect_false (preparecnt)) |
1042 | { |
1258 | { |
1043 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1259 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1044 | call_pending (EV_A); |
1260 | call_pending (EV_A); |
1045 | } |
1261 | } |
1046 | |
1262 | |
|
|
1263 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1264 | if (expect_false (postfork)) |
|
|
1265 | loop_fork (EV_A); |
|
|
1266 | |
1047 | /* update fd-related kernel structures */ |
1267 | /* update fd-related kernel structures */ |
1048 | fd_reify (EV_A); |
1268 | fd_reify (EV_A); |
1049 | |
1269 | |
1050 | /* calculate blocking time */ |
1270 | /* calculate blocking time */ |
|
|
1271 | { |
|
|
1272 | double block; |
1051 | |
1273 | |
1052 | /* we only need this for !monotonic clockor timers, but as we basically |
1274 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1053 | always have timers, we just calculate it always */ |
1275 | block = 0.; /* do not block at all */ |
|
|
1276 | else |
|
|
1277 | { |
|
|
1278 | /* update time to cancel out callback processing overhead */ |
1054 | #if EV_USE_MONOTONIC |
1279 | #if EV_USE_MONOTONIC |
1055 | if (expect_true (have_monotonic)) |
1280 | if (expect_true (have_monotonic)) |
1056 | time_update_monotonic (EV_A); |
1281 | time_update_monotonic (EV_A); |
1057 | else |
1282 | else |
1058 | #endif |
1283 | #endif |
1059 | { |
1284 | { |
1060 | rt_now = ev_time (); |
1285 | ev_rt_now = ev_time (); |
1061 | mn_now = rt_now; |
1286 | mn_now = ev_rt_now; |
1062 | } |
1287 | } |
1063 | |
1288 | |
1064 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1065 | block = 0.; |
|
|
1066 | else |
|
|
1067 | { |
|
|
1068 | block = MAX_BLOCKTIME; |
1289 | block = MAX_BLOCKTIME; |
1069 | |
1290 | |
1070 | if (timercnt) |
1291 | if (timercnt) |
1071 | { |
1292 | { |
1072 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1293 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1073 | if (block > to) block = to; |
1294 | if (block > to) block = to; |
1074 | } |
1295 | } |
1075 | |
1296 | |
|
|
1297 | #if EV_PERIODICS |
1076 | if (periodiccnt) |
1298 | if (periodiccnt) |
1077 | { |
1299 | { |
1078 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1300 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1079 | if (block > to) block = to; |
1301 | if (block > to) block = to; |
1080 | } |
1302 | } |
|
|
1303 | #endif |
1081 | |
1304 | |
1082 | if (block < 0.) block = 0.; |
1305 | if (expect_false (block < 0.)) block = 0.; |
1083 | } |
1306 | } |
1084 | |
1307 | |
1085 | method_poll (EV_A_ block); |
1308 | backend_poll (EV_A_ block); |
|
|
1309 | } |
1086 | |
1310 | |
1087 | /* update rt_now, do magic */ |
1311 | /* update ev_rt_now, do magic */ |
1088 | time_update (EV_A); |
1312 | time_update (EV_A); |
1089 | |
1313 | |
1090 | /* queue pending timers and reschedule them */ |
1314 | /* queue pending timers and reschedule them */ |
1091 | timers_reify (EV_A); /* relative timers called last */ |
1315 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1316 | #if EV_PERIODICS |
1092 | periodics_reify (EV_A); /* absolute timers called first */ |
1317 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1318 | #endif |
1093 | |
1319 | |
1094 | /* queue idle watchers unless io or timers are pending */ |
1320 | /* queue idle watchers unless io or timers are pending */ |
1095 | if (!pendingcnt) |
1321 | if (idlecnt && !any_pending (EV_A)) |
1096 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1322 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1097 | |
1323 | |
1098 | /* queue check watchers, to be executed first */ |
1324 | /* queue check watchers, to be executed first */ |
1099 | if (checkcnt) |
1325 | if (expect_false (checkcnt)) |
1100 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1326 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1101 | |
1327 | |
1102 | call_pending (EV_A); |
1328 | call_pending (EV_A); |
1103 | } |
|
|
1104 | while (activecnt && !loop_done); |
|
|
1105 | |
1329 | |
1106 | if (loop_done != 2) |
1330 | if (expect_false (loop_done)) |
1107 | loop_done = 0; |
1331 | break; |
|
|
1332 | } |
|
|
1333 | |
|
|
1334 | if (loop_done == EVUNLOOP_ONE) |
|
|
1335 | loop_done = EVUNLOOP_CANCEL; |
1108 | } |
1336 | } |
1109 | |
1337 | |
1110 | void |
1338 | void |
1111 | ev_unloop (EV_P_ int how) |
1339 | ev_unloop (EV_P_ int how) |
1112 | { |
1340 | { |
… | |
… | |
1165 | } |
1393 | } |
1166 | |
1394 | |
1167 | /*****************************************************************************/ |
1395 | /*****************************************************************************/ |
1168 | |
1396 | |
1169 | void |
1397 | void |
1170 | ev_io_start (EV_P_ struct ev_io *w) |
1398 | ev_io_start (EV_P_ ev_io *w) |
1171 | { |
1399 | { |
1172 | int fd = w->fd; |
1400 | int fd = w->fd; |
1173 | |
1401 | |
1174 | if (ev_is_active (w)) |
1402 | if (expect_false (ev_is_active (w))) |
1175 | return; |
1403 | return; |
1176 | |
1404 | |
1177 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1405 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1178 | |
1406 | |
1179 | ev_start (EV_A_ (W)w, 1); |
1407 | ev_start (EV_A_ (W)w, 1); |
1180 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1408 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1181 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1409 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1182 | |
1410 | |
1183 | fd_change (EV_A_ fd); |
1411 | fd_change (EV_A_ fd); |
1184 | } |
1412 | } |
1185 | |
1413 | |
1186 | void |
1414 | void |
1187 | ev_io_stop (EV_P_ struct ev_io *w) |
1415 | ev_io_stop (EV_P_ ev_io *w) |
1188 | { |
1416 | { |
1189 | ev_clear_pending (EV_A_ (W)w); |
1417 | ev_clear_pending (EV_A_ (W)w); |
1190 | if (!ev_is_active (w)) |
1418 | if (expect_false (!ev_is_active (w))) |
1191 | return; |
1419 | return; |
|
|
1420 | |
|
|
1421 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1192 | |
1422 | |
1193 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1423 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1194 | ev_stop (EV_A_ (W)w); |
1424 | ev_stop (EV_A_ (W)w); |
1195 | |
1425 | |
1196 | fd_change (EV_A_ w->fd); |
1426 | fd_change (EV_A_ w->fd); |
1197 | } |
1427 | } |
1198 | |
1428 | |
1199 | void |
1429 | void |
1200 | ev_timer_start (EV_P_ struct ev_timer *w) |
1430 | ev_timer_start (EV_P_ ev_timer *w) |
1201 | { |
1431 | { |
1202 | if (ev_is_active (w)) |
1432 | if (expect_false (ev_is_active (w))) |
1203 | return; |
1433 | return; |
1204 | |
1434 | |
1205 | ((WT)w)->at += mn_now; |
1435 | ((WT)w)->at += mn_now; |
1206 | |
1436 | |
1207 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1437 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1208 | |
1438 | |
1209 | ev_start (EV_A_ (W)w, ++timercnt); |
1439 | ev_start (EV_A_ (W)w, ++timercnt); |
1210 | array_needsize (timers, timermax, timercnt, ); |
1440 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1211 | timers [timercnt - 1] = w; |
1441 | timers [timercnt - 1] = w; |
1212 | upheap ((WT *)timers, timercnt - 1); |
1442 | upheap ((WT *)timers, timercnt - 1); |
1213 | |
1443 | |
1214 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1444 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1215 | } |
1445 | } |
1216 | |
1446 | |
1217 | void |
1447 | void |
1218 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1448 | ev_timer_stop (EV_P_ ev_timer *w) |
1219 | { |
1449 | { |
1220 | ev_clear_pending (EV_A_ (W)w); |
1450 | ev_clear_pending (EV_A_ (W)w); |
1221 | if (!ev_is_active (w)) |
1451 | if (expect_false (!ev_is_active (w))) |
1222 | return; |
1452 | return; |
1223 | |
1453 | |
1224 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1454 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1225 | |
1455 | |
1226 | if (((W)w)->active < timercnt--) |
1456 | if (expect_true (((W)w)->active < timercnt--)) |
1227 | { |
1457 | { |
1228 | timers [((W)w)->active - 1] = timers [timercnt]; |
1458 | timers [((W)w)->active - 1] = timers [timercnt]; |
1229 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1459 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1230 | } |
1460 | } |
1231 | |
1461 | |
1232 | ((WT)w)->at = w->repeat; |
1462 | ((WT)w)->at -= mn_now; |
1233 | |
1463 | |
1234 | ev_stop (EV_A_ (W)w); |
1464 | ev_stop (EV_A_ (W)w); |
1235 | } |
1465 | } |
1236 | |
1466 | |
1237 | void |
1467 | void |
1238 | ev_timer_again (EV_P_ struct ev_timer *w) |
1468 | ev_timer_again (EV_P_ ev_timer *w) |
1239 | { |
1469 | { |
1240 | if (ev_is_active (w)) |
1470 | if (ev_is_active (w)) |
1241 | { |
1471 | { |
1242 | if (w->repeat) |
1472 | if (w->repeat) |
1243 | { |
1473 | { |
1244 | ((WT)w)->at = mn_now + w->repeat; |
1474 | ((WT)w)->at = mn_now + w->repeat; |
1245 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1475 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1246 | } |
1476 | } |
1247 | else |
1477 | else |
1248 | ev_timer_stop (EV_A_ w); |
1478 | ev_timer_stop (EV_A_ w); |
1249 | } |
1479 | } |
1250 | else if (w->repeat) |
1480 | else if (w->repeat) |
|
|
1481 | { |
|
|
1482 | w->at = w->repeat; |
1251 | ev_timer_start (EV_A_ w); |
1483 | ev_timer_start (EV_A_ w); |
|
|
1484 | } |
1252 | } |
1485 | } |
1253 | |
1486 | |
|
|
1487 | #if EV_PERIODICS |
1254 | void |
1488 | void |
1255 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1489 | ev_periodic_start (EV_P_ ev_periodic *w) |
1256 | { |
1490 | { |
1257 | if (ev_is_active (w)) |
1491 | if (expect_false (ev_is_active (w))) |
1258 | return; |
1492 | return; |
1259 | |
1493 | |
|
|
1494 | if (w->reschedule_cb) |
|
|
1495 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1496 | else if (w->interval) |
|
|
1497 | { |
1260 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1498 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1261 | |
|
|
1262 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1499 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1263 | if (w->interval) |
|
|
1264 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1500 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1501 | } |
1265 | |
1502 | |
1266 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1503 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1267 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1504 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1268 | periodics [periodiccnt - 1] = w; |
1505 | periodics [periodiccnt - 1] = w; |
1269 | upheap ((WT *)periodics, periodiccnt - 1); |
1506 | upheap ((WT *)periodics, periodiccnt - 1); |
1270 | |
1507 | |
1271 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1508 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1272 | } |
1509 | } |
1273 | |
1510 | |
1274 | void |
1511 | void |
1275 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1512 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1276 | { |
1513 | { |
1277 | ev_clear_pending (EV_A_ (W)w); |
1514 | ev_clear_pending (EV_A_ (W)w); |
1278 | if (!ev_is_active (w)) |
1515 | if (expect_false (!ev_is_active (w))) |
1279 | return; |
1516 | return; |
1280 | |
1517 | |
1281 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1518 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1282 | |
1519 | |
1283 | if (((W)w)->active < periodiccnt--) |
1520 | if (expect_true (((W)w)->active < periodiccnt--)) |
1284 | { |
1521 | { |
1285 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1522 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1286 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1523 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1287 | } |
1524 | } |
1288 | |
1525 | |
1289 | ev_stop (EV_A_ (W)w); |
1526 | ev_stop (EV_A_ (W)w); |
1290 | } |
1527 | } |
1291 | |
1528 | |
1292 | void |
1529 | void |
|
|
1530 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1531 | { |
|
|
1532 | /* TODO: use adjustheap and recalculation */ |
|
|
1533 | ev_periodic_stop (EV_A_ w); |
|
|
1534 | ev_periodic_start (EV_A_ w); |
|
|
1535 | } |
|
|
1536 | #endif |
|
|
1537 | |
|
|
1538 | void |
1293 | ev_idle_start (EV_P_ struct ev_idle *w) |
1539 | ev_idle_start (EV_P_ ev_idle *w) |
1294 | { |
1540 | { |
1295 | if (ev_is_active (w)) |
1541 | if (expect_false (ev_is_active (w))) |
1296 | return; |
1542 | return; |
1297 | |
1543 | |
1298 | ev_start (EV_A_ (W)w, ++idlecnt); |
1544 | ev_start (EV_A_ (W)w, ++idlecnt); |
1299 | array_needsize (idles, idlemax, idlecnt, ); |
1545 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1300 | idles [idlecnt - 1] = w; |
1546 | idles [idlecnt - 1] = w; |
1301 | } |
1547 | } |
1302 | |
1548 | |
1303 | void |
1549 | void |
1304 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1550 | ev_idle_stop (EV_P_ ev_idle *w) |
1305 | { |
1551 | { |
1306 | ev_clear_pending (EV_A_ (W)w); |
1552 | ev_clear_pending (EV_A_ (W)w); |
1307 | if (ev_is_active (w)) |
1553 | if (expect_false (!ev_is_active (w))) |
1308 | return; |
1554 | return; |
1309 | |
1555 | |
1310 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1556 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1311 | ev_stop (EV_A_ (W)w); |
1557 | ev_stop (EV_A_ (W)w); |
1312 | } |
1558 | } |
1313 | |
1559 | |
1314 | void |
1560 | void |
1315 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1561 | ev_prepare_start (EV_P_ ev_prepare *w) |
1316 | { |
1562 | { |
1317 | if (ev_is_active (w)) |
1563 | if (expect_false (ev_is_active (w))) |
1318 | return; |
1564 | return; |
1319 | |
1565 | |
1320 | ev_start (EV_A_ (W)w, ++preparecnt); |
1566 | ev_start (EV_A_ (W)w, ++preparecnt); |
1321 | array_needsize (prepares, preparemax, preparecnt, ); |
1567 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1322 | prepares [preparecnt - 1] = w; |
1568 | prepares [preparecnt - 1] = w; |
1323 | } |
1569 | } |
1324 | |
1570 | |
1325 | void |
1571 | void |
1326 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1572 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1327 | { |
1573 | { |
1328 | ev_clear_pending (EV_A_ (W)w); |
1574 | ev_clear_pending (EV_A_ (W)w); |
1329 | if (ev_is_active (w)) |
1575 | if (expect_false (!ev_is_active (w))) |
1330 | return; |
1576 | return; |
1331 | |
1577 | |
1332 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1578 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1333 | ev_stop (EV_A_ (W)w); |
1579 | ev_stop (EV_A_ (W)w); |
1334 | } |
1580 | } |
1335 | |
1581 | |
1336 | void |
1582 | void |
1337 | ev_check_start (EV_P_ struct ev_check *w) |
1583 | ev_check_start (EV_P_ ev_check *w) |
1338 | { |
1584 | { |
1339 | if (ev_is_active (w)) |
1585 | if (expect_false (ev_is_active (w))) |
1340 | return; |
1586 | return; |
1341 | |
1587 | |
1342 | ev_start (EV_A_ (W)w, ++checkcnt); |
1588 | ev_start (EV_A_ (W)w, ++checkcnt); |
1343 | array_needsize (checks, checkmax, checkcnt, ); |
1589 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1344 | checks [checkcnt - 1] = w; |
1590 | checks [checkcnt - 1] = w; |
1345 | } |
1591 | } |
1346 | |
1592 | |
1347 | void |
1593 | void |
1348 | ev_check_stop (EV_P_ struct ev_check *w) |
1594 | ev_check_stop (EV_P_ ev_check *w) |
1349 | { |
1595 | { |
1350 | ev_clear_pending (EV_A_ (W)w); |
1596 | ev_clear_pending (EV_A_ (W)w); |
1351 | if (ev_is_active (w)) |
1597 | if (expect_false (!ev_is_active (w))) |
1352 | return; |
1598 | return; |
1353 | |
1599 | |
1354 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1600 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1355 | ev_stop (EV_A_ (W)w); |
1601 | ev_stop (EV_A_ (W)w); |
1356 | } |
1602 | } |
… | |
… | |
1358 | #ifndef SA_RESTART |
1604 | #ifndef SA_RESTART |
1359 | # define SA_RESTART 0 |
1605 | # define SA_RESTART 0 |
1360 | #endif |
1606 | #endif |
1361 | |
1607 | |
1362 | void |
1608 | void |
1363 | ev_signal_start (EV_P_ struct ev_signal *w) |
1609 | ev_signal_start (EV_P_ ev_signal *w) |
1364 | { |
1610 | { |
1365 | #if EV_MULTIPLICITY |
1611 | #if EV_MULTIPLICITY |
1366 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1612 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1367 | #endif |
1613 | #endif |
1368 | if (ev_is_active (w)) |
1614 | if (expect_false (ev_is_active (w))) |
1369 | return; |
1615 | return; |
1370 | |
1616 | |
1371 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1617 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1372 | |
1618 | |
1373 | ev_start (EV_A_ (W)w, 1); |
1619 | ev_start (EV_A_ (W)w, 1); |
1374 | array_needsize (signals, signalmax, w->signum, signals_init); |
1620 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1375 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1621 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1376 | |
1622 | |
1377 | if (!((WL)w)->next) |
1623 | if (!((WL)w)->next) |
1378 | { |
1624 | { |
1379 | #if WIN32 |
1625 | #if _WIN32 |
1380 | signal (w->signum, sighandler); |
1626 | signal (w->signum, sighandler); |
1381 | #else |
1627 | #else |
1382 | struct sigaction sa; |
1628 | struct sigaction sa; |
1383 | sa.sa_handler = sighandler; |
1629 | sa.sa_handler = sighandler; |
1384 | sigfillset (&sa.sa_mask); |
1630 | sigfillset (&sa.sa_mask); |
… | |
… | |
1387 | #endif |
1633 | #endif |
1388 | } |
1634 | } |
1389 | } |
1635 | } |
1390 | |
1636 | |
1391 | void |
1637 | void |
1392 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1638 | ev_signal_stop (EV_P_ ev_signal *w) |
1393 | { |
1639 | { |
1394 | ev_clear_pending (EV_A_ (W)w); |
1640 | ev_clear_pending (EV_A_ (W)w); |
1395 | if (!ev_is_active (w)) |
1641 | if (expect_false (!ev_is_active (w))) |
1396 | return; |
1642 | return; |
1397 | |
1643 | |
1398 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1644 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1399 | ev_stop (EV_A_ (W)w); |
1645 | ev_stop (EV_A_ (W)w); |
1400 | |
1646 | |
1401 | if (!signals [w->signum - 1].head) |
1647 | if (!signals [w->signum - 1].head) |
1402 | signal (w->signum, SIG_DFL); |
1648 | signal (w->signum, SIG_DFL); |
1403 | } |
1649 | } |
1404 | |
1650 | |
1405 | void |
1651 | void |
1406 | ev_child_start (EV_P_ struct ev_child *w) |
1652 | ev_child_start (EV_P_ ev_child *w) |
1407 | { |
1653 | { |
1408 | #if EV_MULTIPLICITY |
1654 | #if EV_MULTIPLICITY |
1409 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1655 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1410 | #endif |
1656 | #endif |
1411 | if (ev_is_active (w)) |
1657 | if (expect_false (ev_is_active (w))) |
1412 | return; |
1658 | return; |
1413 | |
1659 | |
1414 | ev_start (EV_A_ (W)w, 1); |
1660 | ev_start (EV_A_ (W)w, 1); |
1415 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1661 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1416 | } |
1662 | } |
1417 | |
1663 | |
1418 | void |
1664 | void |
1419 | ev_child_stop (EV_P_ struct ev_child *w) |
1665 | ev_child_stop (EV_P_ ev_child *w) |
1420 | { |
1666 | { |
1421 | ev_clear_pending (EV_A_ (W)w); |
1667 | ev_clear_pending (EV_A_ (W)w); |
1422 | if (ev_is_active (w)) |
1668 | if (expect_false (!ev_is_active (w))) |
1423 | return; |
1669 | return; |
1424 | |
1670 | |
1425 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1671 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1426 | ev_stop (EV_A_ (W)w); |
1672 | ev_stop (EV_A_ (W)w); |
1427 | } |
1673 | } |
1428 | |
1674 | |
|
|
1675 | #if EV_MULTIPLICITY |
|
|
1676 | void |
|
|
1677 | ev_embed_loop (EV_P_ ev_embed *w) |
|
|
1678 | { |
|
|
1679 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
1680 | } |
|
|
1681 | |
|
|
1682 | static void |
|
|
1683 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
1684 | { |
|
|
1685 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
1686 | |
|
|
1687 | if (ev_cb (w)) |
|
|
1688 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
1689 | else |
|
|
1690 | ev_embed_loop (loop, w); |
|
|
1691 | } |
|
|
1692 | |
|
|
1693 | void |
|
|
1694 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
1695 | { |
|
|
1696 | if (expect_false (ev_is_active (w))) |
|
|
1697 | return; |
|
|
1698 | |
|
|
1699 | { |
|
|
1700 | struct ev_loop *loop = w->loop; |
|
|
1701 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
1702 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1703 | } |
|
|
1704 | |
|
|
1705 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1706 | ev_io_start (EV_A_ &w->io); |
|
|
1707 | ev_start (EV_A_ (W)w, 1); |
|
|
1708 | } |
|
|
1709 | |
|
|
1710 | void |
|
|
1711 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
1712 | { |
|
|
1713 | ev_clear_pending (EV_A_ (W)w); |
|
|
1714 | if (expect_false (!ev_is_active (w))) |
|
|
1715 | return; |
|
|
1716 | |
|
|
1717 | ev_io_stop (EV_A_ &w->io); |
|
|
1718 | ev_stop (EV_A_ (W)w); |
|
|
1719 | } |
|
|
1720 | #endif |
|
|
1721 | |
1429 | /*****************************************************************************/ |
1722 | /*****************************************************************************/ |
1430 | |
1723 | |
1431 | struct ev_once |
1724 | struct ev_once |
1432 | { |
1725 | { |
1433 | struct ev_io io; |
1726 | ev_io io; |
1434 | struct ev_timer to; |
1727 | ev_timer to; |
1435 | void (*cb)(int revents, void *arg); |
1728 | void (*cb)(int revents, void *arg); |
1436 | void *arg; |
1729 | void *arg; |
1437 | }; |
1730 | }; |
1438 | |
1731 | |
1439 | static void |
1732 | static void |
… | |
… | |
1448 | |
1741 | |
1449 | cb (revents, arg); |
1742 | cb (revents, arg); |
1450 | } |
1743 | } |
1451 | |
1744 | |
1452 | static void |
1745 | static void |
1453 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1746 | once_cb_io (EV_P_ ev_io *w, int revents) |
1454 | { |
1747 | { |
1455 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1748 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1456 | } |
1749 | } |
1457 | |
1750 | |
1458 | static void |
1751 | static void |
1459 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1752 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1460 | { |
1753 | { |
1461 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1754 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1462 | } |
1755 | } |
1463 | |
1756 | |
1464 | void |
1757 | void |
1465 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1758 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1466 | { |
1759 | { |
1467 | struct ev_once *once = ev_malloc (sizeof (struct ev_once)); |
1760 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1468 | |
1761 | |
1469 | if (!once) |
1762 | if (expect_false (!once)) |
|
|
1763 | { |
1470 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1764 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1471 | else |
1765 | return; |
1472 | { |
1766 | } |
|
|
1767 | |
1473 | once->cb = cb; |
1768 | once->cb = cb; |
1474 | once->arg = arg; |
1769 | once->arg = arg; |
1475 | |
1770 | |
1476 | ev_watcher_init (&once->io, once_cb_io); |
1771 | ev_init (&once->io, once_cb_io); |
1477 | if (fd >= 0) |
1772 | if (fd >= 0) |
1478 | { |
1773 | { |
1479 | ev_io_set (&once->io, fd, events); |
1774 | ev_io_set (&once->io, fd, events); |
1480 | ev_io_start (EV_A_ &once->io); |
1775 | ev_io_start (EV_A_ &once->io); |
1481 | } |
1776 | } |
1482 | |
1777 | |
1483 | ev_watcher_init (&once->to, once_cb_to); |
1778 | ev_init (&once->to, once_cb_to); |
1484 | if (timeout >= 0.) |
1779 | if (timeout >= 0.) |
1485 | { |
1780 | { |
1486 | ev_timer_set (&once->to, timeout, 0.); |
1781 | ev_timer_set (&once->to, timeout, 0.); |
1487 | ev_timer_start (EV_A_ &once->to); |
1782 | ev_timer_start (EV_A_ &once->to); |
1488 | } |
|
|
1489 | } |
1783 | } |
1490 | } |
1784 | } |
1491 | |
1785 | |
|
|
1786 | #ifdef __cplusplus |
|
|
1787 | } |
|
|
1788 | #endif |
|
|
1789 | |