… | |
… | |
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 | |
|
|
213 | #ifdef _WIN32 |
|
|
214 | # include "ev_win32.c" |
|
|
215 | #endif |
|
|
216 | |
150 | /*****************************************************************************/ |
217 | /*****************************************************************************/ |
151 | |
218 | |
|
|
219 | static void (*syserr_cb)(const char *msg); |
|
|
220 | |
|
|
221 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
222 | { |
|
|
223 | syserr_cb = cb; |
|
|
224 | } |
|
|
225 | |
|
|
226 | static void |
|
|
227 | syserr (const char *msg) |
|
|
228 | { |
|
|
229 | if (!msg) |
|
|
230 | msg = "(libev) system error"; |
|
|
231 | |
|
|
232 | if (syserr_cb) |
|
|
233 | syserr_cb (msg); |
|
|
234 | else |
|
|
235 | { |
|
|
236 | perror (msg); |
|
|
237 | abort (); |
|
|
238 | } |
|
|
239 | } |
|
|
240 | |
|
|
241 | static void *(*alloc)(void *ptr, long size); |
|
|
242 | |
|
|
243 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
244 | { |
|
|
245 | alloc = cb; |
|
|
246 | } |
|
|
247 | |
|
|
248 | static void * |
|
|
249 | ev_realloc (void *ptr, long size) |
|
|
250 | { |
|
|
251 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
252 | |
|
|
253 | if (!ptr && size) |
|
|
254 | { |
|
|
255 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
256 | abort (); |
|
|
257 | } |
|
|
258 | |
|
|
259 | return ptr; |
|
|
260 | } |
|
|
261 | |
|
|
262 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
263 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
264 | |
|
|
265 | /*****************************************************************************/ |
|
|
266 | |
152 | typedef struct |
267 | typedef struct |
153 | { |
268 | { |
154 | struct ev_watcher_list *head; |
269 | WL head; |
155 | unsigned char events; |
270 | unsigned char events; |
156 | unsigned char reify; |
271 | unsigned char reify; |
|
|
272 | #if EV_SELECT_IS_WINSOCKET |
|
|
273 | SOCKET handle; |
|
|
274 | #endif |
157 | } ANFD; |
275 | } ANFD; |
158 | |
276 | |
159 | typedef struct |
277 | typedef struct |
160 | { |
278 | { |
161 | W w; |
279 | W w; |
162 | int events; |
280 | int events; |
163 | } ANPENDING; |
281 | } ANPENDING; |
164 | |
282 | |
165 | #if EV_MULTIPLICITY |
283 | #if EV_MULTIPLICITY |
166 | |
284 | |
167 | struct ev_loop |
285 | struct ev_loop |
168 | { |
286 | { |
|
|
287 | ev_tstamp ev_rt_now; |
|
|
288 | #define ev_rt_now ((loop)->ev_rt_now) |
169 | # define VAR(name,decl) decl; |
289 | #define VAR(name,decl) decl; |
170 | # include "ev_vars.h" |
290 | #include "ev_vars.h" |
171 | }; |
|
|
172 | # undef VAR |
291 | #undef VAR |
|
|
292 | }; |
173 | # 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; |
174 | |
297 | |
175 | #else |
298 | #else |
176 | |
299 | |
|
|
300 | ev_tstamp ev_rt_now; |
177 | # define VAR(name,decl) static decl; |
301 | #define VAR(name,decl) static decl; |
178 | # include "ev_vars.h" |
302 | #include "ev_vars.h" |
179 | # undef VAR |
303 | #undef VAR |
|
|
304 | |
|
|
305 | static int ev_default_loop_ptr; |
180 | |
306 | |
181 | #endif |
307 | #endif |
182 | |
308 | |
183 | /*****************************************************************************/ |
309 | /*****************************************************************************/ |
184 | |
310 | |
185 | inline ev_tstamp |
311 | ev_tstamp |
186 | ev_time (void) |
312 | ev_time (void) |
187 | { |
313 | { |
188 | #if EV_USE_REALTIME |
314 | #if EV_USE_REALTIME |
189 | struct timespec ts; |
315 | struct timespec ts; |
190 | clock_gettime (CLOCK_REALTIME, &ts); |
316 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
209 | #endif |
335 | #endif |
210 | |
336 | |
211 | return ev_time (); |
337 | return ev_time (); |
212 | } |
338 | } |
213 | |
339 | |
|
|
340 | #if EV_MULTIPLICITY |
214 | ev_tstamp |
341 | ev_tstamp |
215 | ev_now (EV_P) |
342 | ev_now (EV_P) |
216 | { |
343 | { |
217 | return rt_now; |
344 | return ev_rt_now; |
218 | } |
345 | } |
|
|
346 | #endif |
219 | |
347 | |
220 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
221 | |
349 | |
222 | #define array_needsize(base,cur,cnt,init) \ |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
223 | if (expect_false ((cnt) > cur)) \ |
351 | if (expect_false ((cnt) > cur)) \ |
224 | { \ |
352 | { \ |
225 | int newcnt = cur; \ |
353 | int newcnt = cur; \ |
226 | do \ |
354 | do \ |
227 | { \ |
355 | { \ |
228 | newcnt = array_roundsize (base, newcnt << 1); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
229 | } \ |
357 | } \ |
230 | while ((cnt) > newcnt); \ |
358 | while ((cnt) > newcnt); \ |
231 | \ |
359 | \ |
232 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
360 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
233 | init (base + cur, newcnt - cur); \ |
361 | init (base + cur, newcnt - cur); \ |
234 | cur = newcnt; \ |
362 | cur = newcnt; \ |
|
|
363 | } |
|
|
364 | |
|
|
365 | #define array_slim(type,stem) \ |
|
|
366 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
367 | { \ |
|
|
368 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
369 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
370 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
235 | } |
371 | } |
236 | |
372 | |
237 | #define array_free(stem, idx) \ |
373 | #define array_free(stem, idx) \ |
238 | free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
239 | |
375 | |
240 | /*****************************************************************************/ |
376 | /*****************************************************************************/ |
241 | |
377 | |
242 | static void |
378 | static void |
243 | anfds_init (ANFD *base, int count) |
379 | anfds_init (ANFD *base, int count) |
… | |
… | |
250 | |
386 | |
251 | ++base; |
387 | ++base; |
252 | } |
388 | } |
253 | } |
389 | } |
254 | |
390 | |
255 | static void |
391 | void |
256 | event (EV_P_ W w, int events) |
392 | ev_feed_event (EV_P_ void *w, int revents) |
257 | { |
393 | { |
258 | if (w->pending) |
394 | W w_ = (W)w; |
|
|
395 | |
|
|
396 | if (expect_false (w_->pending)) |
259 | { |
397 | { |
260 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
261 | return; |
399 | return; |
262 | } |
400 | } |
263 | |
401 | |
264 | w->pending = ++pendingcnt [ABSPRI (w)]; |
402 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
265 | 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); |
266 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
404 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
267 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
405 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
268 | } |
406 | } |
269 | |
407 | |
270 | static void |
408 | static void |
271 | queue_events (EV_P_ W *events, int eventcnt, int type) |
409 | queue_events (EV_P_ W *events, int eventcnt, int type) |
272 | { |
410 | { |
273 | int i; |
411 | int i; |
274 | |
412 | |
275 | for (i = 0; i < eventcnt; ++i) |
413 | for (i = 0; i < eventcnt; ++i) |
276 | event (EV_A_ events [i], type); |
414 | ev_feed_event (EV_A_ events [i], type); |
277 | } |
415 | } |
278 | |
416 | |
279 | static void |
417 | inline void |
280 | fd_event (EV_P_ int fd, int events) |
418 | fd_event (EV_P_ int fd, int revents) |
281 | { |
419 | { |
282 | ANFD *anfd = anfds + fd; |
420 | ANFD *anfd = anfds + fd; |
283 | struct ev_io *w; |
421 | ev_io *w; |
284 | |
422 | |
285 | 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) |
286 | { |
424 | { |
287 | int ev = w->events & events; |
425 | int ev = w->events & revents; |
288 | |
426 | |
289 | if (ev) |
427 | if (ev) |
290 | event (EV_A_ (W)w, ev); |
428 | ev_feed_event (EV_A_ (W)w, ev); |
291 | } |
429 | } |
|
|
430 | } |
|
|
431 | |
|
|
432 | void |
|
|
433 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
434 | { |
|
|
435 | fd_event (EV_A_ fd, revents); |
292 | } |
436 | } |
293 | |
437 | |
294 | /*****************************************************************************/ |
438 | /*****************************************************************************/ |
295 | |
439 | |
296 | static void |
440 | inline void |
297 | fd_reify (EV_P) |
441 | fd_reify (EV_P) |
298 | { |
442 | { |
299 | int i; |
443 | int i; |
300 | |
444 | |
301 | for (i = 0; i < fdchangecnt; ++i) |
445 | for (i = 0; i < fdchangecnt; ++i) |
302 | { |
446 | { |
303 | int fd = fdchanges [i]; |
447 | int fd = fdchanges [i]; |
304 | ANFD *anfd = anfds + fd; |
448 | ANFD *anfd = anfds + fd; |
305 | struct ev_io *w; |
449 | ev_io *w; |
306 | |
450 | |
307 | int events = 0; |
451 | int events = 0; |
308 | |
452 | |
309 | 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) |
310 | events |= w->events; |
454 | events |= w->events; |
311 | |
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 | |
312 | anfd->reify = 0; |
465 | anfd->reify = 0; |
313 | |
466 | |
314 | method_modify (EV_A_ fd, anfd->events, events); |
467 | backend_modify (EV_A_ fd, anfd->events, events); |
315 | anfd->events = events; |
468 | anfd->events = events; |
316 | } |
469 | } |
317 | |
470 | |
318 | fdchangecnt = 0; |
471 | fdchangecnt = 0; |
319 | } |
472 | } |
320 | |
473 | |
321 | static void |
474 | static void |
322 | fd_change (EV_P_ int fd) |
475 | fd_change (EV_P_ int fd) |
323 | { |
476 | { |
324 | if (anfds [fd].reify || fdchangecnt < 0) |
477 | if (expect_false (anfds [fd].reify)) |
325 | return; |
478 | return; |
326 | |
479 | |
327 | anfds [fd].reify = 1; |
480 | anfds [fd].reify = 1; |
328 | |
481 | |
329 | ++fdchangecnt; |
482 | ++fdchangecnt; |
330 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
483 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
331 | fdchanges [fdchangecnt - 1] = fd; |
484 | fdchanges [fdchangecnt - 1] = fd; |
332 | } |
485 | } |
333 | |
486 | |
334 | static void |
487 | static void |
335 | fd_kill (EV_P_ int fd) |
488 | fd_kill (EV_P_ int fd) |
336 | { |
489 | { |
337 | struct ev_io *w; |
490 | ev_io *w; |
338 | |
491 | |
339 | while ((w = (struct ev_io *)anfds [fd].head)) |
492 | while ((w = (ev_io *)anfds [fd].head)) |
340 | { |
493 | { |
341 | ev_io_stop (EV_A_ w); |
494 | ev_io_stop (EV_A_ w); |
342 | 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); |
343 | } |
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 |
344 | } |
507 | } |
345 | |
508 | |
346 | /* called on EBADF to verify fds */ |
509 | /* called on EBADF to verify fds */ |
347 | static void |
510 | static void |
348 | fd_ebadf (EV_P) |
511 | fd_ebadf (EV_P) |
349 | { |
512 | { |
350 | int fd; |
513 | int fd; |
351 | |
514 | |
352 | for (fd = 0; fd < anfdmax; ++fd) |
515 | for (fd = 0; fd < anfdmax; ++fd) |
353 | if (anfds [fd].events) |
516 | if (anfds [fd].events) |
354 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
517 | if (!fd_valid (fd) == -1 && errno == EBADF) |
355 | fd_kill (EV_A_ fd); |
518 | fd_kill (EV_A_ fd); |
356 | } |
519 | } |
357 | |
520 | |
358 | /* 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 */ |
359 | static void |
522 | static void |
… | |
… | |
362 | int fd; |
525 | int fd; |
363 | |
526 | |
364 | for (fd = anfdmax; fd--; ) |
527 | for (fd = anfdmax; fd--; ) |
365 | if (anfds [fd].events) |
528 | if (anfds [fd].events) |
366 | { |
529 | { |
367 | close (fd); |
|
|
368 | fd_kill (EV_A_ fd); |
530 | fd_kill (EV_A_ fd); |
369 | return; |
531 | return; |
370 | } |
532 | } |
371 | } |
533 | } |
372 | |
534 | |
373 | /* 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 */ |
374 | static void |
536 | static void |
375 | fd_rearm_all (EV_P) |
537 | fd_rearm_all (EV_P) |
376 | { |
538 | { |
377 | int fd; |
539 | int fd; |
378 | |
540 | |
… | |
… | |
426 | |
588 | |
427 | heap [k] = w; |
589 | heap [k] = w; |
428 | ((W)heap [k])->active = k + 1; |
590 | ((W)heap [k])->active = k + 1; |
429 | } |
591 | } |
430 | |
592 | |
|
|
593 | inline void |
|
|
594 | adjustheap (WT *heap, int N, int k) |
|
|
595 | { |
|
|
596 | upheap (heap, k); |
|
|
597 | downheap (heap, N, k); |
|
|
598 | } |
|
|
599 | |
431 | /*****************************************************************************/ |
600 | /*****************************************************************************/ |
432 | |
601 | |
433 | typedef struct |
602 | typedef struct |
434 | { |
603 | { |
435 | struct ev_watcher_list *head; |
604 | WL head; |
436 | sig_atomic_t volatile gotsig; |
605 | sig_atomic_t volatile gotsig; |
437 | } ANSIG; |
606 | } ANSIG; |
438 | |
607 | |
439 | static ANSIG *signals; |
608 | static ANSIG *signals; |
440 | static int signalmax; |
609 | static int signalmax; |
441 | |
610 | |
442 | static int sigpipe [2]; |
611 | static int sigpipe [2]; |
443 | static sig_atomic_t volatile gotsig; |
612 | static sig_atomic_t volatile gotsig; |
444 | static struct ev_io sigev; |
613 | static ev_io sigev; |
445 | |
614 | |
446 | static void |
615 | static void |
447 | signals_init (ANSIG *base, int count) |
616 | signals_init (ANSIG *base, int count) |
448 | { |
617 | { |
449 | while (count--) |
618 | while (count--) |
… | |
… | |
456 | } |
625 | } |
457 | |
626 | |
458 | static void |
627 | static void |
459 | sighandler (int signum) |
628 | sighandler (int signum) |
460 | { |
629 | { |
|
|
630 | #if _WIN32 |
|
|
631 | signal (signum, sighandler); |
|
|
632 | #endif |
|
|
633 | |
461 | signals [signum - 1].gotsig = 1; |
634 | signals [signum - 1].gotsig = 1; |
462 | |
635 | |
463 | if (!gotsig) |
636 | if (!gotsig) |
464 | { |
637 | { |
465 | int old_errno = errno; |
638 | int old_errno = errno; |
… | |
… | |
467 | write (sigpipe [1], &signum, 1); |
640 | write (sigpipe [1], &signum, 1); |
468 | errno = old_errno; |
641 | errno = old_errno; |
469 | } |
642 | } |
470 | } |
643 | } |
471 | |
644 | |
|
|
645 | void |
|
|
646 | ev_feed_signal_event (EV_P_ int signum) |
|
|
647 | { |
|
|
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 | |
472 | static void |
665 | static void |
473 | sigcb (EV_P_ struct ev_io *iow, int revents) |
666 | sigcb (EV_P_ ev_io *iow, int revents) |
474 | { |
667 | { |
475 | struct ev_watcher_list *w; |
|
|
476 | int signum; |
668 | int signum; |
477 | |
669 | |
478 | read (sigpipe [0], &revents, 1); |
670 | read (sigpipe [0], &revents, 1); |
479 | gotsig = 0; |
671 | gotsig = 0; |
480 | |
672 | |
481 | for (signum = signalmax; signum--; ) |
673 | for (signum = signalmax; signum--; ) |
482 | if (signals [signum].gotsig) |
674 | if (signals [signum].gotsig) |
483 | { |
675 | ev_feed_signal_event (EV_A_ signum + 1); |
484 | signals [signum].gotsig = 0; |
676 | } |
485 | |
677 | |
486 | for (w = signals [signum].head; w; w = w->next) |
678 | static void |
487 | event (EV_A_ (W)w, EV_SIGNAL); |
679 | fd_intern (int fd) |
488 | } |
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 |
489 | } |
688 | } |
490 | |
689 | |
491 | static void |
690 | static void |
492 | siginit (EV_P) |
691 | siginit (EV_P) |
493 | { |
692 | { |
494 | #ifndef WIN32 |
693 | fd_intern (sigpipe [0]); |
495 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
694 | fd_intern (sigpipe [1]); |
496 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
497 | |
|
|
498 | /* rather than sort out wether we really need nb, set it */ |
|
|
499 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
500 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
501 | #endif |
|
|
502 | |
695 | |
503 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
696 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
504 | ev_io_start (EV_A_ &sigev); |
697 | ev_io_start (EV_A_ &sigev); |
505 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
698 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
506 | } |
699 | } |
507 | |
700 | |
508 | /*****************************************************************************/ |
701 | /*****************************************************************************/ |
509 | |
702 | |
|
|
703 | static ev_child *childs [PID_HASHSIZE]; |
|
|
704 | |
510 | #ifndef WIN32 |
705 | #ifndef _WIN32 |
511 | |
706 | |
512 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
513 | static struct ev_signal childev; |
707 | static ev_signal childev; |
514 | |
708 | |
515 | #ifndef WCONTINUED |
709 | #ifndef WCONTINUED |
516 | # define WCONTINUED 0 |
710 | # define WCONTINUED 0 |
517 | #endif |
711 | #endif |
518 | |
712 | |
519 | static void |
713 | static void |
520 | 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) |
521 | { |
715 | { |
522 | struct ev_child *w; |
716 | ev_child *w; |
523 | |
717 | |
524 | 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) |
525 | if (w->pid == pid || !w->pid) |
719 | if (w->pid == pid || !w->pid) |
526 | { |
720 | { |
527 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
721 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
528 | w->rpid = pid; |
722 | w->rpid = pid; |
529 | w->rstatus = status; |
723 | w->rstatus = status; |
530 | event (EV_A_ (W)w, EV_CHILD); |
724 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
531 | } |
725 | } |
532 | } |
726 | } |
533 | |
727 | |
534 | static void |
728 | static void |
535 | childcb (EV_P_ struct ev_signal *sw, int revents) |
729 | childcb (EV_P_ ev_signal *sw, int revents) |
536 | { |
730 | { |
537 | int pid, status; |
731 | int pid, status; |
538 | |
732 | |
539 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
733 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
540 | { |
734 | { |
541 | /* 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 */ |
542 | event (EV_A_ (W)sw, EV_SIGNAL); |
737 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
543 | |
738 | |
544 | child_reap (EV_A_ sw, pid, pid, status); |
739 | child_reap (EV_A_ sw, pid, pid, status); |
545 | 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 */ |
546 | } |
741 | } |
547 | } |
742 | } |
548 | |
743 | |
549 | #endif |
744 | #endif |
550 | |
745 | |
551 | /*****************************************************************************/ |
746 | /*****************************************************************************/ |
552 | |
747 | |
|
|
748 | #if EV_USE_PORT |
|
|
749 | # include "ev_port.c" |
|
|
750 | #endif |
553 | #if EV_USE_KQUEUE |
751 | #if EV_USE_KQUEUE |
554 | # include "ev_kqueue.c" |
752 | # include "ev_kqueue.c" |
555 | #endif |
753 | #endif |
556 | #if EV_USE_EPOLL |
754 | #if EV_USE_EPOLL |
557 | # include "ev_epoll.c" |
755 | # include "ev_epoll.c" |
… | |
… | |
577 | |
775 | |
578 | /* 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 */ |
579 | static int |
777 | static int |
580 | enable_secure (void) |
778 | enable_secure (void) |
581 | { |
779 | { |
582 | #ifdef WIN32 |
780 | #ifdef _WIN32 |
583 | return 0; |
781 | return 0; |
584 | #else |
782 | #else |
585 | return getuid () != geteuid () |
783 | return getuid () != geteuid () |
586 | || getgid () != getegid (); |
784 | || getgid () != getegid (); |
587 | #endif |
785 | #endif |
588 | } |
786 | } |
589 | |
787 | |
590 | int |
788 | unsigned int |
591 | ev_method (EV_P) |
789 | ev_supported_backends (void) |
592 | { |
790 | { |
593 | return method; |
791 | unsigned int flags = 0; |
594 | } |
|
|
595 | |
792 | |
596 | static void |
793 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
597 | 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) |
598 | { |
804 | { |
599 | 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) |
600 | { |
838 | { |
601 | #if EV_USE_MONOTONIC |
839 | #if EV_USE_MONOTONIC |
602 | { |
840 | { |
603 | struct timespec ts; |
841 | struct timespec ts; |
604 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
842 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
605 | have_monotonic = 1; |
843 | have_monotonic = 1; |
606 | } |
844 | } |
607 | #endif |
845 | #endif |
608 | |
846 | |
609 | rt_now = ev_time (); |
847 | ev_rt_now = ev_time (); |
610 | mn_now = get_clock (); |
848 | mn_now = get_clock (); |
611 | now_floor = mn_now; |
849 | now_floor = mn_now; |
612 | rtmn_diff = rt_now - mn_now; |
850 | rtmn_diff = ev_rt_now - mn_now; |
613 | |
851 | |
614 | if (methods == EVMETHOD_AUTO) |
852 | if (!(flags & EVFLAG_NOENV) |
615 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
853 | && !enable_secure () |
|
|
854 | && getenv ("LIBEV_FLAGS")) |
616 | methods = atoi (getenv ("LIBEV_METHODS")); |
855 | flags = atoi (getenv ("LIBEV_FLAGS")); |
617 | else |
|
|
618 | methods = EVMETHOD_ANY; |
|
|
619 | |
856 | |
620 | method = 0; |
857 | if (!(flags & 0x0000ffffUL)) |
621 | #if EV_USE_WIN32 |
858 | flags |= ev_recommended_backends (); |
622 | 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); |
623 | #endif |
863 | #endif |
624 | #if EV_USE_KQUEUE |
864 | #if EV_USE_KQUEUE |
625 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
865 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
626 | #endif |
866 | #endif |
627 | #if EV_USE_EPOLL |
867 | #if EV_USE_EPOLL |
628 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
868 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
629 | #endif |
869 | #endif |
630 | #if EV_USE_POLL |
870 | #if EV_USE_POLL |
631 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
871 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
632 | #endif |
872 | #endif |
633 | #if EV_USE_SELECT |
873 | #if EV_USE_SELECT |
634 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
874 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
635 | #endif |
875 | #endif |
636 | } |
|
|
637 | } |
|
|
638 | |
876 | |
639 | void |
877 | ev_init (&sigev, sigcb); |
|
|
878 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
879 | } |
|
|
880 | } |
|
|
881 | |
|
|
882 | static void |
640 | loop_destroy (EV_P) |
883 | loop_destroy (EV_P) |
641 | { |
884 | { |
642 | int i; |
885 | int i; |
643 | |
886 | |
644 | #if EV_USE_WIN32 |
887 | #if EV_USE_PORT |
645 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
888 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
646 | #endif |
889 | #endif |
647 | #if EV_USE_KQUEUE |
890 | #if EV_USE_KQUEUE |
648 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
891 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
649 | #endif |
892 | #endif |
650 | #if EV_USE_EPOLL |
893 | #if EV_USE_EPOLL |
651 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
894 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
652 | #endif |
895 | #endif |
653 | #if EV_USE_POLL |
896 | #if EV_USE_POLL |
654 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
897 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
655 | #endif |
898 | #endif |
656 | #if EV_USE_SELECT |
899 | #if EV_USE_SELECT |
657 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
900 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
658 | #endif |
901 | #endif |
659 | |
902 | |
660 | for (i = NUMPRI; i--; ) |
903 | for (i = NUMPRI; i--; ) |
661 | array_free (pending, [i]); |
904 | array_free (pending, [i]); |
662 | |
905 | |
|
|
906 | /* have to use the microsoft-never-gets-it-right macro */ |
663 | array_free (fdchange, ); |
907 | array_free (fdchange, EMPTY0); |
664 | array_free (timer, ); |
908 | array_free (timer, EMPTY0); |
|
|
909 | #if EV_PERIODICS |
665 | array_free (periodic, ); |
910 | array_free (periodic, EMPTY0); |
|
|
911 | #endif |
666 | array_free (idle, ); |
912 | array_free (idle, EMPTY0); |
667 | array_free (prepare, ); |
913 | array_free (prepare, EMPTY0); |
668 | array_free (check, ); |
914 | array_free (check, EMPTY0); |
669 | |
915 | |
670 | method = 0; |
916 | backend = 0; |
671 | /*TODO*/ |
|
|
672 | } |
917 | } |
673 | |
918 | |
674 | void |
919 | static void |
675 | loop_fork (EV_P) |
920 | loop_fork (EV_P) |
676 | { |
921 | { |
677 | /*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 |
678 | #if EV_USE_EPOLL |
928 | #if EV_USE_EPOLL |
679 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
929 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
680 | #endif |
930 | #endif |
681 | #if EV_USE_KQUEUE |
931 | |
682 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
932 | if (ev_is_active (&sigev)) |
683 | #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; |
684 | } |
948 | } |
685 | |
949 | |
686 | #if EV_MULTIPLICITY |
950 | #if EV_MULTIPLICITY |
687 | struct ev_loop * |
951 | struct ev_loop * |
688 | ev_loop_new (int methods) |
952 | ev_loop_new (unsigned int flags) |
689 | { |
953 | { |
690 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
954 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
691 | |
955 | |
|
|
956 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
957 | |
692 | loop_init (EV_A_ methods); |
958 | loop_init (EV_A_ flags); |
693 | |
959 | |
694 | if (ev_method (EV_A)) |
960 | if (ev_backend (EV_A)) |
695 | return loop; |
961 | return loop; |
696 | |
962 | |
697 | return 0; |
963 | return 0; |
698 | } |
964 | } |
699 | |
965 | |
700 | void |
966 | void |
701 | ev_loop_destroy (EV_P) |
967 | ev_loop_destroy (EV_P) |
702 | { |
968 | { |
703 | loop_destroy (EV_A); |
969 | loop_destroy (EV_A); |
704 | free (loop); |
970 | ev_free (loop); |
705 | } |
971 | } |
706 | |
972 | |
707 | void |
973 | void |
708 | ev_loop_fork (EV_P) |
974 | ev_loop_fork (EV_P) |
709 | { |
975 | { |
710 | loop_fork (EV_A); |
976 | postfork = 1; |
711 | } |
977 | } |
712 | |
978 | |
713 | #endif |
979 | #endif |
714 | |
980 | |
715 | #if EV_MULTIPLICITY |
981 | #if EV_MULTIPLICITY |
716 | struct ev_loop default_loop_struct; |
|
|
717 | static struct ev_loop *default_loop; |
|
|
718 | |
|
|
719 | struct ev_loop * |
982 | struct ev_loop * |
|
|
983 | ev_default_loop_init (unsigned int flags) |
720 | #else |
984 | #else |
721 | static int default_loop; |
|
|
722 | |
|
|
723 | int |
985 | int |
|
|
986 | ev_default_loop (unsigned int flags) |
724 | #endif |
987 | #endif |
725 | ev_default_loop (int methods) |
|
|
726 | { |
988 | { |
727 | if (sigpipe [0] == sigpipe [1]) |
989 | if (sigpipe [0] == sigpipe [1]) |
728 | if (pipe (sigpipe)) |
990 | if (pipe (sigpipe)) |
729 | return 0; |
991 | return 0; |
730 | |
992 | |
731 | if (!default_loop) |
993 | if (!ev_default_loop_ptr) |
732 | { |
994 | { |
733 | #if EV_MULTIPLICITY |
995 | #if EV_MULTIPLICITY |
734 | struct ev_loop *loop = default_loop = &default_loop_struct; |
996 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
735 | #else |
997 | #else |
736 | default_loop = 1; |
998 | ev_default_loop_ptr = 1; |
737 | #endif |
999 | #endif |
738 | |
1000 | |
739 | loop_init (EV_A_ methods); |
1001 | loop_init (EV_A_ flags); |
740 | |
1002 | |
741 | if (ev_method (EV_A)) |
1003 | if (ev_backend (EV_A)) |
742 | { |
1004 | { |
743 | ev_watcher_init (&sigev, sigcb); |
|
|
744 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
745 | siginit (EV_A); |
1005 | siginit (EV_A); |
746 | |
1006 | |
747 | #ifndef WIN32 |
1007 | #ifndef _WIN32 |
748 | ev_signal_init (&childev, childcb, SIGCHLD); |
1008 | ev_signal_init (&childev, childcb, SIGCHLD); |
749 | ev_set_priority (&childev, EV_MAXPRI); |
1009 | ev_set_priority (&childev, EV_MAXPRI); |
750 | ev_signal_start (EV_A_ &childev); |
1010 | ev_signal_start (EV_A_ &childev); |
751 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1011 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
752 | #endif |
1012 | #endif |
753 | } |
1013 | } |
754 | else |
1014 | else |
755 | default_loop = 0; |
1015 | ev_default_loop_ptr = 0; |
756 | } |
1016 | } |
757 | |
1017 | |
758 | return default_loop; |
1018 | return ev_default_loop_ptr; |
759 | } |
1019 | } |
760 | |
1020 | |
761 | void |
1021 | void |
762 | ev_default_destroy (void) |
1022 | ev_default_destroy (void) |
763 | { |
1023 | { |
764 | #if EV_MULTIPLICITY |
1024 | #if EV_MULTIPLICITY |
765 | struct ev_loop *loop = default_loop; |
1025 | struct ev_loop *loop = ev_default_loop_ptr; |
766 | #endif |
1026 | #endif |
767 | |
1027 | |
|
|
1028 | #ifndef _WIN32 |
768 | ev_ref (EV_A); /* child watcher */ |
1029 | ev_ref (EV_A); /* child watcher */ |
769 | ev_signal_stop (EV_A_ &childev); |
1030 | ev_signal_stop (EV_A_ &childev); |
|
|
1031 | #endif |
770 | |
1032 | |
771 | ev_ref (EV_A); /* signal watcher */ |
1033 | ev_ref (EV_A); /* signal watcher */ |
772 | ev_io_stop (EV_A_ &sigev); |
1034 | ev_io_stop (EV_A_ &sigev); |
773 | |
1035 | |
774 | close (sigpipe [0]); sigpipe [0] = 0; |
1036 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
779 | |
1041 | |
780 | void |
1042 | void |
781 | ev_default_fork (void) |
1043 | ev_default_fork (void) |
782 | { |
1044 | { |
783 | #if EV_MULTIPLICITY |
1045 | #if EV_MULTIPLICITY |
784 | struct ev_loop *loop = default_loop; |
1046 | struct ev_loop *loop = ev_default_loop_ptr; |
785 | #endif |
1047 | #endif |
786 | |
1048 | |
787 | loop_fork (EV_A); |
1049 | if (backend) |
788 | |
1050 | postfork = 1; |
789 | ev_io_stop (EV_A_ &sigev); |
|
|
790 | close (sigpipe [0]); |
|
|
791 | close (sigpipe [1]); |
|
|
792 | pipe (sigpipe); |
|
|
793 | |
|
|
794 | ev_ref (EV_A); /* signal watcher */ |
|
|
795 | siginit (EV_A); |
|
|
796 | } |
1051 | } |
797 | |
1052 | |
798 | /*****************************************************************************/ |
1053 | /*****************************************************************************/ |
799 | |
1054 | |
800 | 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 |
801 | call_pending (EV_P) |
1068 | call_pending (EV_P) |
802 | { |
1069 | { |
803 | int pri; |
1070 | int pri; |
804 | |
1071 | |
805 | for (pri = NUMPRI; pri--; ) |
1072 | for (pri = NUMPRI; pri--; ) |
806 | while (pendingcnt [pri]) |
1073 | while (pendingcnt [pri]) |
807 | { |
1074 | { |
808 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1075 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
809 | |
1076 | |
810 | if (p->w) |
1077 | if (expect_true (p->w)) |
811 | { |
1078 | { |
812 | p->w->pending = 0; |
1079 | p->w->pending = 0; |
813 | p->w->cb (EV_A_ p->w, p->events); |
1080 | EV_CB_INVOKE (p->w, p->events); |
814 | } |
1081 | } |
815 | } |
1082 | } |
816 | } |
1083 | } |
817 | |
1084 | |
818 | static void |
1085 | inline void |
819 | timers_reify (EV_P) |
1086 | timers_reify (EV_P) |
820 | { |
1087 | { |
821 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1088 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
822 | { |
1089 | { |
823 | struct ev_timer *w = timers [0]; |
1090 | ev_timer *w = timers [0]; |
824 | |
1091 | |
825 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1092 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
826 | |
1093 | |
827 | /* first reschedule or stop timer */ |
1094 | /* first reschedule or stop timer */ |
828 | if (w->repeat) |
1095 | if (w->repeat) |
829 | { |
1096 | { |
830 | 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 | |
831 | ((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 | |
832 | downheap ((WT *)timers, timercnt, 0); |
1103 | downheap ((WT *)timers, timercnt, 0); |
833 | } |
1104 | } |
834 | else |
1105 | else |
835 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1106 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
836 | |
1107 | |
837 | event (EV_A_ (W)w, EV_TIMEOUT); |
1108 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
838 | } |
1109 | } |
839 | } |
1110 | } |
840 | |
1111 | |
841 | static void |
1112 | #if EV_PERIODICS |
|
|
1113 | inline void |
842 | periodics_reify (EV_P) |
1114 | periodics_reify (EV_P) |
843 | { |
1115 | { |
844 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1116 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
845 | { |
1117 | { |
846 | struct ev_periodic *w = periodics [0]; |
1118 | ev_periodic *w = periodics [0]; |
847 | |
1119 | |
848 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1120 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
849 | |
1121 | |
850 | /* first reschedule or stop timer */ |
1122 | /* first reschedule or stop timer */ |
851 | if (w->interval) |
1123 | if (w->reschedule_cb) |
852 | { |
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 | { |
853 | ((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; |
854 | 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)); |
855 | downheap ((WT *)periodics, periodiccnt, 0); |
1133 | downheap ((WT *)periodics, periodiccnt, 0); |
856 | } |
1134 | } |
857 | else |
1135 | else |
858 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1136 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
859 | |
1137 | |
860 | event (EV_A_ (W)w, EV_PERIODIC); |
1138 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
861 | } |
1139 | } |
862 | } |
1140 | } |
863 | |
1141 | |
864 | static void |
1142 | static void |
865 | periodics_reschedule (EV_P) |
1143 | periodics_reschedule (EV_P) |
… | |
… | |
867 | int i; |
1145 | int i; |
868 | |
1146 | |
869 | /* adjust periodics after time jump */ |
1147 | /* adjust periodics after time jump */ |
870 | for (i = 0; i < periodiccnt; ++i) |
1148 | for (i = 0; i < periodiccnt; ++i) |
871 | { |
1149 | { |
872 | struct ev_periodic *w = periodics [i]; |
1150 | ev_periodic *w = periodics [i]; |
873 | |
1151 | |
|
|
1152 | if (w->reschedule_cb) |
|
|
1153 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
874 | if (w->interval) |
1154 | else if (w->interval) |
875 | { |
|
|
876 | 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; |
877 | |
|
|
878 | if (fabs (diff) >= 1e-4) |
|
|
879 | { |
|
|
880 | ev_periodic_stop (EV_A_ w); |
|
|
881 | ev_periodic_start (EV_A_ w); |
|
|
882 | |
|
|
883 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
884 | } |
|
|
885 | } |
|
|
886 | } |
1156 | } |
|
|
1157 | |
|
|
1158 | /* now rebuild the heap */ |
|
|
1159 | for (i = periodiccnt >> 1; i--; ) |
|
|
1160 | downheap ((WT *)periodics, periodiccnt, i); |
887 | } |
1161 | } |
|
|
1162 | #endif |
888 | |
1163 | |
889 | inline int |
1164 | inline int |
890 | time_update_monotonic (EV_P) |
1165 | time_update_monotonic (EV_P) |
891 | { |
1166 | { |
892 | mn_now = get_clock (); |
1167 | mn_now = get_clock (); |
893 | |
1168 | |
894 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1169 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
895 | { |
1170 | { |
896 | rt_now = rtmn_diff + mn_now; |
1171 | ev_rt_now = rtmn_diff + mn_now; |
897 | return 0; |
1172 | return 0; |
898 | } |
1173 | } |
899 | else |
1174 | else |
900 | { |
1175 | { |
901 | now_floor = mn_now; |
1176 | now_floor = mn_now; |
902 | rt_now = ev_time (); |
1177 | ev_rt_now = ev_time (); |
903 | return 1; |
1178 | return 1; |
904 | } |
1179 | } |
905 | } |
1180 | } |
906 | |
1181 | |
907 | static void |
1182 | inline void |
908 | time_update (EV_P) |
1183 | time_update (EV_P) |
909 | { |
1184 | { |
910 | int i; |
1185 | int i; |
911 | |
1186 | |
912 | #if EV_USE_MONOTONIC |
1187 | #if EV_USE_MONOTONIC |
… | |
… | |
916 | { |
1191 | { |
917 | ev_tstamp odiff = rtmn_diff; |
1192 | ev_tstamp odiff = rtmn_diff; |
918 | |
1193 | |
919 | 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 */ |
920 | { |
1195 | { |
921 | rtmn_diff = rt_now - mn_now; |
1196 | rtmn_diff = ev_rt_now - mn_now; |
922 | |
1197 | |
923 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1198 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
924 | return; /* all is well */ |
1199 | return; /* all is well */ |
925 | |
1200 | |
926 | rt_now = ev_time (); |
1201 | ev_rt_now = ev_time (); |
927 | mn_now = get_clock (); |
1202 | mn_now = get_clock (); |
928 | now_floor = mn_now; |
1203 | now_floor = mn_now; |
929 | } |
1204 | } |
930 | |
1205 | |
|
|
1206 | # if EV_PERIODICS |
931 | periodics_reschedule (EV_A); |
1207 | periodics_reschedule (EV_A); |
|
|
1208 | # endif |
932 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1209 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
933 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1210 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
934 | } |
1211 | } |
935 | } |
1212 | } |
936 | else |
1213 | else |
937 | #endif |
1214 | #endif |
938 | { |
1215 | { |
939 | rt_now = ev_time (); |
1216 | ev_rt_now = ev_time (); |
940 | |
1217 | |
941 | 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)) |
942 | { |
1219 | { |
|
|
1220 | #if EV_PERIODICS |
943 | periodics_reschedule (EV_A); |
1221 | periodics_reschedule (EV_A); |
|
|
1222 | #endif |
944 | |
1223 | |
945 | /* 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 */ |
946 | for (i = 0; i < timercnt; ++i) |
1225 | for (i = 0; i < timercnt; ++i) |
947 | ((WT)timers [i])->at += rt_now - mn_now; |
1226 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
948 | } |
1227 | } |
949 | |
1228 | |
950 | mn_now = rt_now; |
1229 | mn_now = ev_rt_now; |
951 | } |
1230 | } |
952 | } |
1231 | } |
953 | |
1232 | |
954 | void |
1233 | void |
955 | ev_ref (EV_P) |
1234 | ev_ref (EV_P) |
… | |
… | |
966 | static int loop_done; |
1245 | static int loop_done; |
967 | |
1246 | |
968 | void |
1247 | void |
969 | ev_loop (EV_P_ int flags) |
1248 | ev_loop (EV_P_ int flags) |
970 | { |
1249 | { |
971 | double block; |
|
|
972 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1250 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1251 | ? EVUNLOOP_ONE |
|
|
1252 | : EVUNLOOP_CANCEL; |
973 | |
1253 | |
974 | do |
1254 | while (activecnt) |
975 | { |
1255 | { |
976 | /* queue check watchers (and execute them) */ |
1256 | /* queue check watchers (and execute them) */ |
977 | if (expect_false (preparecnt)) |
1257 | if (expect_false (preparecnt)) |
978 | { |
1258 | { |
979 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1259 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
980 | call_pending (EV_A); |
1260 | call_pending (EV_A); |
981 | } |
1261 | } |
982 | |
1262 | |
|
|
1263 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1264 | if (expect_false (postfork)) |
|
|
1265 | loop_fork (EV_A); |
|
|
1266 | |
983 | /* update fd-related kernel structures */ |
1267 | /* update fd-related kernel structures */ |
984 | fd_reify (EV_A); |
1268 | fd_reify (EV_A); |
985 | |
1269 | |
986 | /* calculate blocking time */ |
1270 | /* calculate blocking time */ |
|
|
1271 | { |
|
|
1272 | double block; |
987 | |
1273 | |
988 | /* we only need this for !monotonic clockor timers, but as we basically |
1274 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
989 | 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 */ |
990 | #if EV_USE_MONOTONIC |
1279 | #if EV_USE_MONOTONIC |
991 | if (expect_true (have_monotonic)) |
1280 | if (expect_true (have_monotonic)) |
992 | time_update_monotonic (EV_A); |
1281 | time_update_monotonic (EV_A); |
993 | else |
1282 | else |
994 | #endif |
1283 | #endif |
995 | { |
1284 | { |
996 | rt_now = ev_time (); |
1285 | ev_rt_now = ev_time (); |
997 | mn_now = rt_now; |
1286 | mn_now = ev_rt_now; |
998 | } |
1287 | } |
999 | |
1288 | |
1000 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1001 | block = 0.; |
|
|
1002 | else |
|
|
1003 | { |
|
|
1004 | block = MAX_BLOCKTIME; |
1289 | block = MAX_BLOCKTIME; |
1005 | |
1290 | |
1006 | if (timercnt) |
1291 | if (timercnt) |
1007 | { |
1292 | { |
1008 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1293 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1009 | if (block > to) block = to; |
1294 | if (block > to) block = to; |
1010 | } |
1295 | } |
1011 | |
1296 | |
|
|
1297 | #if EV_PERIODICS |
1012 | if (periodiccnt) |
1298 | if (periodiccnt) |
1013 | { |
1299 | { |
1014 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1300 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1015 | if (block > to) block = to; |
1301 | if (block > to) block = to; |
1016 | } |
1302 | } |
|
|
1303 | #endif |
1017 | |
1304 | |
1018 | if (block < 0.) block = 0.; |
1305 | if (expect_false (block < 0.)) block = 0.; |
1019 | } |
1306 | } |
1020 | |
1307 | |
1021 | method_poll (EV_A_ block); |
1308 | backend_poll (EV_A_ block); |
|
|
1309 | } |
1022 | |
1310 | |
1023 | /* update rt_now, do magic */ |
1311 | /* update ev_rt_now, do magic */ |
1024 | time_update (EV_A); |
1312 | time_update (EV_A); |
1025 | |
1313 | |
1026 | /* queue pending timers and reschedule them */ |
1314 | /* queue pending timers and reschedule them */ |
1027 | timers_reify (EV_A); /* relative timers called last */ |
1315 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1316 | #if EV_PERIODICS |
1028 | periodics_reify (EV_A); /* absolute timers called first */ |
1317 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1318 | #endif |
1029 | |
1319 | |
1030 | /* queue idle watchers unless io or timers are pending */ |
1320 | /* queue idle watchers unless other events are pending */ |
1031 | if (!pendingcnt) |
1321 | if (idlecnt && !any_pending (EV_A)) |
1032 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1322 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1033 | |
1323 | |
1034 | /* queue check watchers, to be executed first */ |
1324 | /* queue check watchers, to be executed first */ |
1035 | if (checkcnt) |
1325 | if (expect_false (checkcnt)) |
1036 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1326 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1037 | |
1327 | |
1038 | call_pending (EV_A); |
1328 | call_pending (EV_A); |
1039 | } |
|
|
1040 | while (activecnt && !loop_done); |
|
|
1041 | |
1329 | |
1042 | if (loop_done != 2) |
1330 | if (expect_false (loop_done)) |
1043 | loop_done = 0; |
1331 | break; |
|
|
1332 | } |
|
|
1333 | |
|
|
1334 | if (loop_done == EVUNLOOP_ONE) |
|
|
1335 | loop_done = EVUNLOOP_CANCEL; |
1044 | } |
1336 | } |
1045 | |
1337 | |
1046 | void |
1338 | void |
1047 | ev_unloop (EV_P_ int how) |
1339 | ev_unloop (EV_P_ int how) |
1048 | { |
1340 | { |
… | |
… | |
1101 | } |
1393 | } |
1102 | |
1394 | |
1103 | /*****************************************************************************/ |
1395 | /*****************************************************************************/ |
1104 | |
1396 | |
1105 | void |
1397 | void |
1106 | ev_io_start (EV_P_ struct ev_io *w) |
1398 | ev_io_start (EV_P_ ev_io *w) |
1107 | { |
1399 | { |
1108 | int fd = w->fd; |
1400 | int fd = w->fd; |
1109 | |
1401 | |
1110 | if (ev_is_active (w)) |
1402 | if (expect_false (ev_is_active (w))) |
1111 | return; |
1403 | return; |
1112 | |
1404 | |
1113 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1405 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1114 | |
1406 | |
1115 | ev_start (EV_A_ (W)w, 1); |
1407 | ev_start (EV_A_ (W)w, 1); |
1116 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1408 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1117 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1409 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1118 | |
1410 | |
1119 | fd_change (EV_A_ fd); |
1411 | fd_change (EV_A_ fd); |
1120 | } |
1412 | } |
1121 | |
1413 | |
1122 | void |
1414 | void |
1123 | ev_io_stop (EV_P_ struct ev_io *w) |
1415 | ev_io_stop (EV_P_ ev_io *w) |
1124 | { |
1416 | { |
1125 | ev_clear_pending (EV_A_ (W)w); |
1417 | ev_clear_pending (EV_A_ (W)w); |
1126 | if (!ev_is_active (w)) |
1418 | if (expect_false (!ev_is_active (w))) |
1127 | return; |
1419 | return; |
|
|
1420 | |
|
|
1421 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1128 | |
1422 | |
1129 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1423 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1130 | ev_stop (EV_A_ (W)w); |
1424 | ev_stop (EV_A_ (W)w); |
1131 | |
1425 | |
1132 | fd_change (EV_A_ w->fd); |
1426 | fd_change (EV_A_ w->fd); |
1133 | } |
1427 | } |
1134 | |
1428 | |
1135 | void |
1429 | void |
1136 | ev_timer_start (EV_P_ struct ev_timer *w) |
1430 | ev_timer_start (EV_P_ ev_timer *w) |
1137 | { |
1431 | { |
1138 | if (ev_is_active (w)) |
1432 | if (expect_false (ev_is_active (w))) |
1139 | return; |
1433 | return; |
1140 | |
1434 | |
1141 | ((WT)w)->at += mn_now; |
1435 | ((WT)w)->at += mn_now; |
1142 | |
1436 | |
1143 | 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.)); |
1144 | |
1438 | |
1145 | ev_start (EV_A_ (W)w, ++timercnt); |
1439 | ev_start (EV_A_ (W)w, ++timercnt); |
1146 | array_needsize (timers, timermax, timercnt, ); |
1440 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1147 | timers [timercnt - 1] = w; |
1441 | timers [timercnt - 1] = w; |
1148 | upheap ((WT *)timers, timercnt - 1); |
1442 | upheap ((WT *)timers, timercnt - 1); |
1149 | |
1443 | |
1150 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1444 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1151 | } |
1445 | } |
1152 | |
1446 | |
1153 | void |
1447 | void |
1154 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1448 | ev_timer_stop (EV_P_ ev_timer *w) |
1155 | { |
1449 | { |
1156 | ev_clear_pending (EV_A_ (W)w); |
1450 | ev_clear_pending (EV_A_ (W)w); |
1157 | if (!ev_is_active (w)) |
1451 | if (expect_false (!ev_is_active (w))) |
1158 | return; |
1452 | return; |
1159 | |
1453 | |
1160 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1454 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1161 | |
1455 | |
1162 | if (((W)w)->active < timercnt--) |
1456 | if (expect_true (((W)w)->active < timercnt--)) |
1163 | { |
1457 | { |
1164 | timers [((W)w)->active - 1] = timers [timercnt]; |
1458 | timers [((W)w)->active - 1] = timers [timercnt]; |
1165 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1459 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1166 | } |
1460 | } |
1167 | |
1461 | |
1168 | ((WT)w)->at = w->repeat; |
1462 | ((WT)w)->at -= mn_now; |
1169 | |
1463 | |
1170 | ev_stop (EV_A_ (W)w); |
1464 | ev_stop (EV_A_ (W)w); |
1171 | } |
1465 | } |
1172 | |
1466 | |
1173 | void |
1467 | void |
1174 | ev_timer_again (EV_P_ struct ev_timer *w) |
1468 | ev_timer_again (EV_P_ ev_timer *w) |
1175 | { |
1469 | { |
1176 | if (ev_is_active (w)) |
1470 | if (ev_is_active (w)) |
1177 | { |
1471 | { |
1178 | if (w->repeat) |
1472 | if (w->repeat) |
1179 | { |
1473 | { |
1180 | ((WT)w)->at = mn_now + w->repeat; |
1474 | ((WT)w)->at = mn_now + w->repeat; |
1181 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1475 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1182 | } |
1476 | } |
1183 | else |
1477 | else |
1184 | ev_timer_stop (EV_A_ w); |
1478 | ev_timer_stop (EV_A_ w); |
1185 | } |
1479 | } |
1186 | else if (w->repeat) |
1480 | else if (w->repeat) |
|
|
1481 | { |
|
|
1482 | w->at = w->repeat; |
1187 | ev_timer_start (EV_A_ w); |
1483 | ev_timer_start (EV_A_ w); |
|
|
1484 | } |
1188 | } |
1485 | } |
1189 | |
1486 | |
|
|
1487 | #if EV_PERIODICS |
1190 | void |
1488 | void |
1191 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1489 | ev_periodic_start (EV_P_ ev_periodic *w) |
1192 | { |
1490 | { |
1193 | if (ev_is_active (w)) |
1491 | if (expect_false (ev_is_active (w))) |
1194 | return; |
1492 | return; |
1195 | |
1493 | |
|
|
1494 | if (w->reschedule_cb) |
|
|
1495 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1496 | else if (w->interval) |
|
|
1497 | { |
1196 | 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.)); |
1197 | |
|
|
1198 | /* 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 */ |
1199 | if (w->interval) |
|
|
1200 | ((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 | } |
1201 | |
1502 | |
1202 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1503 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1203 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1504 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1204 | periodics [periodiccnt - 1] = w; |
1505 | periodics [periodiccnt - 1] = w; |
1205 | upheap ((WT *)periodics, periodiccnt - 1); |
1506 | upheap ((WT *)periodics, periodiccnt - 1); |
1206 | |
1507 | |
1207 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1508 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1208 | } |
1509 | } |
1209 | |
1510 | |
1210 | void |
1511 | void |
1211 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1512 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1212 | { |
1513 | { |
1213 | ev_clear_pending (EV_A_ (W)w); |
1514 | ev_clear_pending (EV_A_ (W)w); |
1214 | if (!ev_is_active (w)) |
1515 | if (expect_false (!ev_is_active (w))) |
1215 | return; |
1516 | return; |
1216 | |
1517 | |
1217 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1518 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1218 | |
1519 | |
1219 | if (((W)w)->active < periodiccnt--) |
1520 | if (expect_true (((W)w)->active < periodiccnt--)) |
1220 | { |
1521 | { |
1221 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1522 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1222 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1523 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1223 | } |
1524 | } |
1224 | |
1525 | |
1225 | ev_stop (EV_A_ (W)w); |
1526 | ev_stop (EV_A_ (W)w); |
1226 | } |
1527 | } |
1227 | |
1528 | |
1228 | 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 |
1229 | ev_idle_start (EV_P_ struct ev_idle *w) |
1539 | ev_idle_start (EV_P_ ev_idle *w) |
1230 | { |
1540 | { |
1231 | if (ev_is_active (w)) |
1541 | if (expect_false (ev_is_active (w))) |
1232 | return; |
1542 | return; |
1233 | |
1543 | |
1234 | ev_start (EV_A_ (W)w, ++idlecnt); |
1544 | ev_start (EV_A_ (W)w, ++idlecnt); |
1235 | array_needsize (idles, idlemax, idlecnt, ); |
1545 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1236 | idles [idlecnt - 1] = w; |
1546 | idles [idlecnt - 1] = w; |
1237 | } |
1547 | } |
1238 | |
1548 | |
1239 | void |
1549 | void |
1240 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1550 | ev_idle_stop (EV_P_ ev_idle *w) |
1241 | { |
1551 | { |
1242 | ev_clear_pending (EV_A_ (W)w); |
1552 | ev_clear_pending (EV_A_ (W)w); |
1243 | if (ev_is_active (w)) |
1553 | if (expect_false (!ev_is_active (w))) |
1244 | return; |
1554 | return; |
1245 | |
1555 | |
1246 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1556 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1247 | ev_stop (EV_A_ (W)w); |
1557 | ev_stop (EV_A_ (W)w); |
1248 | } |
1558 | } |
1249 | |
1559 | |
1250 | void |
1560 | void |
1251 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1561 | ev_prepare_start (EV_P_ ev_prepare *w) |
1252 | { |
1562 | { |
1253 | if (ev_is_active (w)) |
1563 | if (expect_false (ev_is_active (w))) |
1254 | return; |
1564 | return; |
1255 | |
1565 | |
1256 | ev_start (EV_A_ (W)w, ++preparecnt); |
1566 | ev_start (EV_A_ (W)w, ++preparecnt); |
1257 | array_needsize (prepares, preparemax, preparecnt, ); |
1567 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1258 | prepares [preparecnt - 1] = w; |
1568 | prepares [preparecnt - 1] = w; |
1259 | } |
1569 | } |
1260 | |
1570 | |
1261 | void |
1571 | void |
1262 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1572 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1263 | { |
1573 | { |
1264 | ev_clear_pending (EV_A_ (W)w); |
1574 | ev_clear_pending (EV_A_ (W)w); |
1265 | if (ev_is_active (w)) |
1575 | if (expect_false (!ev_is_active (w))) |
1266 | return; |
1576 | return; |
1267 | |
1577 | |
1268 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1578 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1269 | ev_stop (EV_A_ (W)w); |
1579 | ev_stop (EV_A_ (W)w); |
1270 | } |
1580 | } |
1271 | |
1581 | |
1272 | void |
1582 | void |
1273 | ev_check_start (EV_P_ struct ev_check *w) |
1583 | ev_check_start (EV_P_ ev_check *w) |
1274 | { |
1584 | { |
1275 | if (ev_is_active (w)) |
1585 | if (expect_false (ev_is_active (w))) |
1276 | return; |
1586 | return; |
1277 | |
1587 | |
1278 | ev_start (EV_A_ (W)w, ++checkcnt); |
1588 | ev_start (EV_A_ (W)w, ++checkcnt); |
1279 | array_needsize (checks, checkmax, checkcnt, ); |
1589 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1280 | checks [checkcnt - 1] = w; |
1590 | checks [checkcnt - 1] = w; |
1281 | } |
1591 | } |
1282 | |
1592 | |
1283 | void |
1593 | void |
1284 | ev_check_stop (EV_P_ struct ev_check *w) |
1594 | ev_check_stop (EV_P_ ev_check *w) |
1285 | { |
1595 | { |
1286 | ev_clear_pending (EV_A_ (W)w); |
1596 | ev_clear_pending (EV_A_ (W)w); |
1287 | if (ev_is_active (w)) |
1597 | if (expect_false (!ev_is_active (w))) |
1288 | return; |
1598 | return; |
1289 | |
1599 | |
1290 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1600 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1291 | ev_stop (EV_A_ (W)w); |
1601 | ev_stop (EV_A_ (W)w); |
1292 | } |
1602 | } |
… | |
… | |
1294 | #ifndef SA_RESTART |
1604 | #ifndef SA_RESTART |
1295 | # define SA_RESTART 0 |
1605 | # define SA_RESTART 0 |
1296 | #endif |
1606 | #endif |
1297 | |
1607 | |
1298 | void |
1608 | void |
1299 | ev_signal_start (EV_P_ struct ev_signal *w) |
1609 | ev_signal_start (EV_P_ ev_signal *w) |
1300 | { |
1610 | { |
1301 | #if EV_MULTIPLICITY |
1611 | #if EV_MULTIPLICITY |
1302 | 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)); |
1303 | #endif |
1613 | #endif |
1304 | if (ev_is_active (w)) |
1614 | if (expect_false (ev_is_active (w))) |
1305 | return; |
1615 | return; |
1306 | |
1616 | |
1307 | 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)); |
1308 | |
1618 | |
1309 | ev_start (EV_A_ (W)w, 1); |
1619 | ev_start (EV_A_ (W)w, 1); |
1310 | array_needsize (signals, signalmax, w->signum, signals_init); |
1620 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1311 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1621 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1312 | |
1622 | |
1313 | if (!((WL)w)->next) |
1623 | if (!((WL)w)->next) |
1314 | { |
1624 | { |
|
|
1625 | #if _WIN32 |
|
|
1626 | signal (w->signum, sighandler); |
|
|
1627 | #else |
1315 | struct sigaction sa; |
1628 | struct sigaction sa; |
1316 | sa.sa_handler = sighandler; |
1629 | sa.sa_handler = sighandler; |
1317 | sigfillset (&sa.sa_mask); |
1630 | sigfillset (&sa.sa_mask); |
1318 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1631 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1319 | sigaction (w->signum, &sa, 0); |
1632 | sigaction (w->signum, &sa, 0); |
|
|
1633 | #endif |
1320 | } |
1634 | } |
1321 | } |
1635 | } |
1322 | |
1636 | |
1323 | void |
1637 | void |
1324 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1638 | ev_signal_stop (EV_P_ ev_signal *w) |
1325 | { |
1639 | { |
1326 | ev_clear_pending (EV_A_ (W)w); |
1640 | ev_clear_pending (EV_A_ (W)w); |
1327 | if (!ev_is_active (w)) |
1641 | if (expect_false (!ev_is_active (w))) |
1328 | return; |
1642 | return; |
1329 | |
1643 | |
1330 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1644 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1331 | ev_stop (EV_A_ (W)w); |
1645 | ev_stop (EV_A_ (W)w); |
1332 | |
1646 | |
1333 | if (!signals [w->signum - 1].head) |
1647 | if (!signals [w->signum - 1].head) |
1334 | signal (w->signum, SIG_DFL); |
1648 | signal (w->signum, SIG_DFL); |
1335 | } |
1649 | } |
1336 | |
1650 | |
1337 | void |
1651 | void |
1338 | ev_child_start (EV_P_ struct ev_child *w) |
1652 | ev_child_start (EV_P_ ev_child *w) |
1339 | { |
1653 | { |
1340 | #if EV_MULTIPLICITY |
1654 | #if EV_MULTIPLICITY |
1341 | 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)); |
1342 | #endif |
1656 | #endif |
1343 | if (ev_is_active (w)) |
1657 | if (expect_false (ev_is_active (w))) |
1344 | return; |
1658 | return; |
1345 | |
1659 | |
1346 | ev_start (EV_A_ (W)w, 1); |
1660 | ev_start (EV_A_ (W)w, 1); |
1347 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1661 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1348 | } |
1662 | } |
1349 | |
1663 | |
1350 | void |
1664 | void |
1351 | ev_child_stop (EV_P_ struct ev_child *w) |
1665 | ev_child_stop (EV_P_ ev_child *w) |
1352 | { |
1666 | { |
1353 | ev_clear_pending (EV_A_ (W)w); |
1667 | ev_clear_pending (EV_A_ (W)w); |
1354 | if (ev_is_active (w)) |
1668 | if (expect_false (!ev_is_active (w))) |
1355 | return; |
1669 | return; |
1356 | |
1670 | |
1357 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1671 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1358 | ev_stop (EV_A_ (W)w); |
1672 | ev_stop (EV_A_ (W)w); |
1359 | } |
1673 | } |
1360 | |
1674 | |
|
|
1675 | #if EV_MULTIPLICITY |
|
|
1676 | void |
|
|
1677 | ev_embed_sweep (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_sweep (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 | |
1361 | /*****************************************************************************/ |
1722 | /*****************************************************************************/ |
1362 | |
1723 | |
1363 | struct ev_once |
1724 | struct ev_once |
1364 | { |
1725 | { |
1365 | struct ev_io io; |
1726 | ev_io io; |
1366 | struct ev_timer to; |
1727 | ev_timer to; |
1367 | void (*cb)(int revents, void *arg); |
1728 | void (*cb)(int revents, void *arg); |
1368 | void *arg; |
1729 | void *arg; |
1369 | }; |
1730 | }; |
1370 | |
1731 | |
1371 | static void |
1732 | static void |
… | |
… | |
1374 | void (*cb)(int revents, void *arg) = once->cb; |
1735 | void (*cb)(int revents, void *arg) = once->cb; |
1375 | void *arg = once->arg; |
1736 | void *arg = once->arg; |
1376 | |
1737 | |
1377 | ev_io_stop (EV_A_ &once->io); |
1738 | ev_io_stop (EV_A_ &once->io); |
1378 | ev_timer_stop (EV_A_ &once->to); |
1739 | ev_timer_stop (EV_A_ &once->to); |
1379 | free (once); |
1740 | ev_free (once); |
1380 | |
1741 | |
1381 | cb (revents, arg); |
1742 | cb (revents, arg); |
1382 | } |
1743 | } |
1383 | |
1744 | |
1384 | static void |
1745 | static void |
1385 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1746 | once_cb_io (EV_P_ ev_io *w, int revents) |
1386 | { |
1747 | { |
1387 | 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); |
1388 | } |
1749 | } |
1389 | |
1750 | |
1390 | static void |
1751 | static void |
1391 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1752 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1392 | { |
1753 | { |
1393 | 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); |
1394 | } |
1755 | } |
1395 | |
1756 | |
1396 | void |
1757 | void |
1397 | 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) |
1398 | { |
1759 | { |
1399 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1760 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1400 | |
1761 | |
1401 | if (!once) |
1762 | if (expect_false (!once)) |
|
|
1763 | { |
1402 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1764 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1403 | else |
1765 | return; |
1404 | { |
1766 | } |
|
|
1767 | |
1405 | once->cb = cb; |
1768 | once->cb = cb; |
1406 | once->arg = arg; |
1769 | once->arg = arg; |
1407 | |
1770 | |
1408 | ev_watcher_init (&once->io, once_cb_io); |
1771 | ev_init (&once->io, once_cb_io); |
1409 | if (fd >= 0) |
1772 | if (fd >= 0) |
1410 | { |
1773 | { |
1411 | ev_io_set (&once->io, fd, events); |
1774 | ev_io_set (&once->io, fd, events); |
1412 | ev_io_start (EV_A_ &once->io); |
1775 | ev_io_start (EV_A_ &once->io); |
1413 | } |
1776 | } |
1414 | |
1777 | |
1415 | ev_watcher_init (&once->to, once_cb_to); |
1778 | ev_init (&once->to, once_cb_to); |
1416 | if (timeout >= 0.) |
1779 | if (timeout >= 0.) |
1417 | { |
1780 | { |
1418 | ev_timer_set (&once->to, timeout, 0.); |
1781 | ev_timer_set (&once->to, timeout, 0.); |
1419 | ev_timer_start (EV_A_ &once->to); |
1782 | ev_timer_start (EV_A_ &once->to); |
1420 | } |
|
|
1421 | } |
1783 | } |
1422 | } |
1784 | } |
1423 | |
1785 | |
|
|
1786 | #ifdef __cplusplus |
|
|
1787 | } |
|
|
1788 | #endif |
|
|
1789 | |