… | |
… | |
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 struct ev_watcher *W; |
145 | typedef struct ev_watcher_list *WL; |
208 | typedef struct ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
209 | typedef struct 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; \ |
235 | } |
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*/\ |
|
|
371 | } |
|
|
372 | |
|
|
373 | #define array_free(stem, idx) \ |
|
|
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
236 | |
375 | |
237 | /*****************************************************************************/ |
376 | /*****************************************************************************/ |
238 | |
377 | |
239 | static void |
378 | static void |
240 | anfds_init (ANFD *base, int count) |
379 | anfds_init (ANFD *base, int count) |
… | |
… | |
247 | |
386 | |
248 | ++base; |
387 | ++base; |
249 | } |
388 | } |
250 | } |
389 | } |
251 | |
390 | |
252 | static void |
391 | void |
253 | event (EV_P_ W w, int events) |
392 | ev_feed_event (EV_P_ void *w, int revents) |
254 | { |
393 | { |
255 | if (w->pending) |
394 | W w_ = (W)w; |
|
|
395 | |
|
|
396 | if (expect_false (w_->pending)) |
256 | { |
397 | { |
257 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
258 | return; |
399 | return; |
259 | } |
400 | } |
260 | |
401 | |
261 | w->pending = ++pendingcnt [ABSPRI (w)]; |
402 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
262 | 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); |
263 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
404 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
264 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
405 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
265 | } |
406 | } |
266 | |
407 | |
267 | static void |
408 | static void |
268 | queue_events (EV_P_ W *events, int eventcnt, int type) |
409 | queue_events (EV_P_ W *events, int eventcnt, int type) |
269 | { |
410 | { |
270 | int i; |
411 | int i; |
271 | |
412 | |
272 | for (i = 0; i < eventcnt; ++i) |
413 | for (i = 0; i < eventcnt; ++i) |
273 | event (EV_A_ events [i], type); |
414 | ev_feed_event (EV_A_ events [i], type); |
274 | } |
415 | } |
275 | |
416 | |
276 | static void |
417 | inline void |
277 | fd_event (EV_P_ int fd, int events) |
418 | fd_event (EV_P_ int fd, int revents) |
278 | { |
419 | { |
279 | ANFD *anfd = anfds + fd; |
420 | ANFD *anfd = anfds + fd; |
280 | struct ev_io *w; |
421 | struct ev_io *w; |
281 | |
422 | |
282 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
423 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
283 | { |
424 | { |
284 | int ev = w->events & events; |
425 | int ev = w->events & revents; |
285 | |
426 | |
286 | if (ev) |
427 | if (ev) |
287 | event (EV_A_ (W)w, ev); |
428 | ev_feed_event (EV_A_ (W)w, ev); |
288 | } |
429 | } |
|
|
430 | } |
|
|
431 | |
|
|
432 | void |
|
|
433 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
434 | { |
|
|
435 | fd_event (EV_A_ fd, revents); |
289 | } |
436 | } |
290 | |
437 | |
291 | /*****************************************************************************/ |
438 | /*****************************************************************************/ |
292 | |
439 | |
293 | static void |
440 | inline void |
294 | fd_reify (EV_P) |
441 | fd_reify (EV_P) |
295 | { |
442 | { |
296 | int i; |
443 | int i; |
297 | |
444 | |
298 | for (i = 0; i < fdchangecnt; ++i) |
445 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
304 | int events = 0; |
451 | int events = 0; |
305 | |
452 | |
306 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
453 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
307 | events |= w->events; |
454 | events |= w->events; |
308 | |
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 | |
309 | anfd->reify = 0; |
465 | anfd->reify = 0; |
310 | |
466 | |
311 | if (anfd->events != events) |
|
|
312 | { |
|
|
313 | method_modify (EV_A_ fd, anfd->events, events); |
467 | backend_modify (EV_A_ fd, anfd->events, events); |
314 | anfd->events = events; |
468 | anfd->events = events; |
315 | } |
|
|
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) |
… | |
… | |
337 | struct ev_io *w; |
490 | struct ev_io *w; |
338 | |
491 | |
339 | while ((w = (struct ev_io *)anfds [fd].head)) |
492 | while ((w = (struct 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; |
… | |
… | |
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_ struct 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 | |
510 | #ifndef WIN32 |
|
|
511 | |
|
|
512 | static struct ev_child *childs [PID_HASHSIZE]; |
703 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
704 | |
|
|
705 | #ifndef _WIN32 |
|
|
706 | |
513 | static struct ev_signal childev; |
707 | static struct ev_signal childev; |
514 | |
708 | |
515 | #ifndef WCONTINUED |
709 | #ifndef WCONTINUED |
516 | # define WCONTINUED 0 |
710 | # define WCONTINUED 0 |
517 | #endif |
711 | #endif |
… | |
… | |
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_ struct ev_signal *sw, int revents) |
… | |
… | |
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_backend (EV_P) |
|
|
822 | { |
|
|
823 | return backend; |
|
|
824 | } |
|
|
825 | |
|
|
826 | static void |
|
|
827 | loop_init (EV_P_ unsigned int flags) |
|
|
828 | { |
|
|
829 | if (!backend) |
600 | { |
830 | { |
601 | #if EV_USE_MONOTONIC |
831 | #if EV_USE_MONOTONIC |
602 | { |
832 | { |
603 | struct timespec ts; |
833 | struct timespec ts; |
604 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
834 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
605 | have_monotonic = 1; |
835 | have_monotonic = 1; |
606 | } |
836 | } |
607 | #endif |
837 | #endif |
608 | |
838 | |
609 | rt_now = ev_time (); |
839 | ev_rt_now = ev_time (); |
610 | mn_now = get_clock (); |
840 | mn_now = get_clock (); |
611 | now_floor = mn_now; |
841 | now_floor = mn_now; |
612 | rtmn_diff = rt_now - mn_now; |
842 | rtmn_diff = ev_rt_now - mn_now; |
613 | |
843 | |
614 | if (methods == EVMETHOD_AUTO) |
844 | if (!(flags & EVFLAG_NOENV) |
615 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
845 | && !enable_secure () |
|
|
846 | && getenv ("LIBEV_FLAGS")) |
616 | methods = atoi (getenv ("LIBEV_METHODS")); |
847 | flags = atoi (getenv ("LIBEV_FLAGS")); |
617 | else |
|
|
618 | methods = EVMETHOD_ANY; |
|
|
619 | |
848 | |
620 | method = 0; |
849 | if (!(flags & 0x0000ffffUL)) |
621 | #if EV_USE_WIN32 |
850 | flags |= ev_recommended_backends (); |
622 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
851 | |
|
|
852 | backend = 0; |
|
|
853 | #if EV_USE_PORT |
|
|
854 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
623 | #endif |
855 | #endif |
624 | #if EV_USE_KQUEUE |
856 | #if EV_USE_KQUEUE |
625 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
857 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
626 | #endif |
858 | #endif |
627 | #if EV_USE_EPOLL |
859 | #if EV_USE_EPOLL |
628 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
860 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
629 | #endif |
861 | #endif |
630 | #if EV_USE_POLL |
862 | #if EV_USE_POLL |
631 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
863 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
632 | #endif |
864 | #endif |
633 | #if EV_USE_SELECT |
865 | #if EV_USE_SELECT |
634 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
866 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
635 | #endif |
867 | #endif |
636 | } |
|
|
637 | } |
|
|
638 | |
868 | |
639 | void |
869 | ev_init (&sigev, sigcb); |
|
|
870 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
871 | } |
|
|
872 | } |
|
|
873 | |
|
|
874 | static void |
640 | loop_destroy (EV_P) |
875 | loop_destroy (EV_P) |
641 | { |
876 | { |
642 | #if EV_USE_WIN32 |
877 | int i; |
643 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
878 | |
|
|
879 | #if EV_USE_PORT |
|
|
880 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
644 | #endif |
881 | #endif |
645 | #if EV_USE_KQUEUE |
882 | #if EV_USE_KQUEUE |
646 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
883 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
647 | #endif |
884 | #endif |
648 | #if EV_USE_EPOLL |
885 | #if EV_USE_EPOLL |
649 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
886 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
650 | #endif |
887 | #endif |
651 | #if EV_USE_POLL |
888 | #if EV_USE_POLL |
652 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
889 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
653 | #endif |
890 | #endif |
654 | #if EV_USE_SELECT |
891 | #if EV_USE_SELECT |
655 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
892 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
656 | #endif |
893 | #endif |
657 | |
894 | |
658 | method = 0; |
895 | for (i = NUMPRI; i--; ) |
659 | /*TODO*/ |
896 | array_free (pending, [i]); |
660 | } |
|
|
661 | |
897 | |
662 | void |
898 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
899 | array_free (fdchange, EMPTY0); |
|
|
900 | array_free (timer, EMPTY0); |
|
|
901 | #if EV_PERIODICS |
|
|
902 | array_free (periodic, EMPTY0); |
|
|
903 | #endif |
|
|
904 | array_free (idle, EMPTY0); |
|
|
905 | array_free (prepare, EMPTY0); |
|
|
906 | array_free (check, EMPTY0); |
|
|
907 | |
|
|
908 | backend = 0; |
|
|
909 | } |
|
|
910 | |
|
|
911 | static void |
663 | loop_fork (EV_P) |
912 | loop_fork (EV_P) |
664 | { |
913 | { |
665 | /*TODO*/ |
914 | #if EV_USE_PORT |
|
|
915 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
916 | #endif |
|
|
917 | #if EV_USE_KQUEUE |
|
|
918 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
919 | #endif |
666 | #if EV_USE_EPOLL |
920 | #if EV_USE_EPOLL |
667 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
921 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
668 | #endif |
922 | #endif |
669 | #if EV_USE_KQUEUE |
923 | |
670 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
924 | if (ev_is_active (&sigev)) |
671 | #endif |
925 | { |
|
|
926 | /* default loop */ |
|
|
927 | |
|
|
928 | ev_ref (EV_A); |
|
|
929 | ev_io_stop (EV_A_ &sigev); |
|
|
930 | close (sigpipe [0]); |
|
|
931 | close (sigpipe [1]); |
|
|
932 | |
|
|
933 | while (pipe (sigpipe)) |
|
|
934 | syserr ("(libev) error creating pipe"); |
|
|
935 | |
|
|
936 | siginit (EV_A); |
|
|
937 | } |
|
|
938 | |
|
|
939 | postfork = 0; |
672 | } |
940 | } |
673 | |
941 | |
674 | #if EV_MULTIPLICITY |
942 | #if EV_MULTIPLICITY |
675 | struct ev_loop * |
943 | struct ev_loop * |
676 | ev_loop_new (int methods) |
944 | ev_loop_new (unsigned int flags) |
677 | { |
945 | { |
678 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
946 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
679 | |
947 | |
|
|
948 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
949 | |
680 | loop_init (EV_A_ methods); |
950 | loop_init (EV_A_ flags); |
681 | |
951 | |
682 | if (ev_method (EV_A)) |
952 | if (ev_backend (EV_A)) |
683 | return loop; |
953 | return loop; |
684 | |
954 | |
685 | return 0; |
955 | return 0; |
686 | } |
956 | } |
687 | |
957 | |
688 | void |
958 | void |
689 | ev_loop_destroy (EV_P) |
959 | ev_loop_destroy (EV_P) |
690 | { |
960 | { |
691 | loop_destroy (EV_A); |
961 | loop_destroy (EV_A); |
692 | free (loop); |
962 | ev_free (loop); |
693 | } |
963 | } |
694 | |
964 | |
695 | void |
965 | void |
696 | ev_loop_fork (EV_P) |
966 | ev_loop_fork (EV_P) |
697 | { |
967 | { |
698 | loop_fork (EV_A); |
968 | postfork = 1; |
699 | } |
969 | } |
700 | |
970 | |
701 | #endif |
971 | #endif |
702 | |
972 | |
703 | #if EV_MULTIPLICITY |
973 | #if EV_MULTIPLICITY |
704 | struct ev_loop default_loop_struct; |
|
|
705 | static struct ev_loop *default_loop; |
|
|
706 | |
|
|
707 | struct ev_loop * |
974 | struct ev_loop * |
|
|
975 | ev_default_loop_init (unsigned int flags) |
708 | #else |
976 | #else |
709 | static int default_loop; |
|
|
710 | |
|
|
711 | int |
977 | int |
|
|
978 | ev_default_loop (unsigned int flags) |
712 | #endif |
979 | #endif |
713 | ev_default_loop (int methods) |
|
|
714 | { |
980 | { |
715 | if (sigpipe [0] == sigpipe [1]) |
981 | if (sigpipe [0] == sigpipe [1]) |
716 | if (pipe (sigpipe)) |
982 | if (pipe (sigpipe)) |
717 | return 0; |
983 | return 0; |
718 | |
984 | |
719 | if (!default_loop) |
985 | if (!ev_default_loop_ptr) |
720 | { |
986 | { |
721 | #if EV_MULTIPLICITY |
987 | #if EV_MULTIPLICITY |
722 | struct ev_loop *loop = default_loop = &default_loop_struct; |
988 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
723 | #else |
989 | #else |
724 | default_loop = 1; |
990 | ev_default_loop_ptr = 1; |
725 | #endif |
991 | #endif |
726 | |
992 | |
727 | loop_init (EV_A_ methods); |
993 | loop_init (EV_A_ flags); |
728 | |
994 | |
729 | if (ev_method (EV_A)) |
995 | if (ev_backend (EV_A)) |
730 | { |
996 | { |
731 | ev_watcher_init (&sigev, sigcb); |
|
|
732 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
733 | siginit (EV_A); |
997 | siginit (EV_A); |
734 | |
998 | |
735 | #ifndef WIN32 |
999 | #ifndef _WIN32 |
736 | ev_signal_init (&childev, childcb, SIGCHLD); |
1000 | ev_signal_init (&childev, childcb, SIGCHLD); |
737 | ev_set_priority (&childev, EV_MAXPRI); |
1001 | ev_set_priority (&childev, EV_MAXPRI); |
738 | ev_signal_start (EV_A_ &childev); |
1002 | ev_signal_start (EV_A_ &childev); |
739 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1003 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
740 | #endif |
1004 | #endif |
741 | } |
1005 | } |
742 | else |
1006 | else |
743 | default_loop = 0; |
1007 | ev_default_loop_ptr = 0; |
744 | } |
1008 | } |
745 | |
1009 | |
746 | return default_loop; |
1010 | return ev_default_loop_ptr; |
747 | } |
1011 | } |
748 | |
1012 | |
749 | void |
1013 | void |
750 | ev_default_destroy (void) |
1014 | ev_default_destroy (void) |
751 | { |
1015 | { |
752 | #if EV_MULTIPLICITY |
1016 | #if EV_MULTIPLICITY |
753 | struct ev_loop *loop = default_loop; |
1017 | struct ev_loop *loop = ev_default_loop_ptr; |
754 | #endif |
1018 | #endif |
755 | |
1019 | |
|
|
1020 | #ifndef _WIN32 |
756 | ev_ref (EV_A); /* child watcher */ |
1021 | ev_ref (EV_A); /* child watcher */ |
757 | ev_signal_stop (EV_A_ &childev); |
1022 | ev_signal_stop (EV_A_ &childev); |
|
|
1023 | #endif |
758 | |
1024 | |
759 | ev_ref (EV_A); /* signal watcher */ |
1025 | ev_ref (EV_A); /* signal watcher */ |
760 | ev_io_stop (EV_A_ &sigev); |
1026 | ev_io_stop (EV_A_ &sigev); |
761 | |
1027 | |
762 | close (sigpipe [0]); sigpipe [0] = 0; |
1028 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
767 | |
1033 | |
768 | void |
1034 | void |
769 | ev_default_fork (void) |
1035 | ev_default_fork (void) |
770 | { |
1036 | { |
771 | #if EV_MULTIPLICITY |
1037 | #if EV_MULTIPLICITY |
772 | struct ev_loop *loop = default_loop; |
1038 | struct ev_loop *loop = ev_default_loop_ptr; |
773 | #endif |
1039 | #endif |
774 | |
1040 | |
775 | loop_fork (EV_A); |
1041 | if (backend) |
776 | |
1042 | postfork = 1; |
777 | ev_io_stop (EV_A_ &sigev); |
|
|
778 | close (sigpipe [0]); |
|
|
779 | close (sigpipe [1]); |
|
|
780 | pipe (sigpipe); |
|
|
781 | |
|
|
782 | ev_ref (EV_A); /* signal watcher */ |
|
|
783 | siginit (EV_A); |
|
|
784 | } |
1043 | } |
785 | |
1044 | |
786 | /*****************************************************************************/ |
1045 | /*****************************************************************************/ |
787 | |
1046 | |
788 | static void |
1047 | static int |
|
|
1048 | any_pending (EV_P) |
|
|
1049 | { |
|
|
1050 | int pri; |
|
|
1051 | |
|
|
1052 | for (pri = NUMPRI; pri--; ) |
|
|
1053 | if (pendingcnt [pri]) |
|
|
1054 | return 1; |
|
|
1055 | |
|
|
1056 | return 0; |
|
|
1057 | } |
|
|
1058 | |
|
|
1059 | inline void |
789 | call_pending (EV_P) |
1060 | call_pending (EV_P) |
790 | { |
1061 | { |
791 | int pri; |
1062 | int pri; |
792 | |
1063 | |
793 | for (pri = NUMPRI; pri--; ) |
1064 | for (pri = NUMPRI; pri--; ) |
794 | while (pendingcnt [pri]) |
1065 | while (pendingcnt [pri]) |
795 | { |
1066 | { |
796 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1067 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
797 | |
1068 | |
798 | if (p->w) |
1069 | if (expect_true (p->w)) |
799 | { |
1070 | { |
800 | p->w->pending = 0; |
1071 | p->w->pending = 0; |
801 | |
1072 | EV_CB_INVOKE (p->w, p->events); |
802 | (*(void (**)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events); |
|
|
803 | } |
1073 | } |
804 | } |
1074 | } |
805 | } |
1075 | } |
806 | |
1076 | |
807 | static void |
1077 | inline void |
808 | timers_reify (EV_P) |
1078 | timers_reify (EV_P) |
809 | { |
1079 | { |
810 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1080 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
811 | { |
1081 | { |
812 | struct ev_timer *w = timers [0]; |
1082 | struct ev_timer *w = timers [0]; |
… | |
… | |
815 | |
1085 | |
816 | /* first reschedule or stop timer */ |
1086 | /* first reschedule or stop timer */ |
817 | if (w->repeat) |
1087 | if (w->repeat) |
818 | { |
1088 | { |
819 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1089 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1090 | |
820 | ((WT)w)->at = mn_now + w->repeat; |
1091 | ((WT)w)->at += w->repeat; |
|
|
1092 | if (((WT)w)->at < mn_now) |
|
|
1093 | ((WT)w)->at = mn_now; |
|
|
1094 | |
821 | downheap ((WT *)timers, timercnt, 0); |
1095 | downheap ((WT *)timers, timercnt, 0); |
822 | } |
1096 | } |
823 | else |
1097 | else |
824 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1098 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
825 | |
1099 | |
826 | event (EV_A_ (W)w, EV_TIMEOUT); |
1100 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
827 | } |
1101 | } |
828 | } |
1102 | } |
829 | |
1103 | |
830 | static void |
1104 | #if EV_PERIODICS |
|
|
1105 | inline void |
831 | periodics_reify (EV_P) |
1106 | periodics_reify (EV_P) |
832 | { |
1107 | { |
833 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1108 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
834 | { |
1109 | { |
835 | struct ev_periodic *w = periodics [0]; |
1110 | struct ev_periodic *w = periodics [0]; |
836 | |
1111 | |
837 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1112 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
838 | |
1113 | |
839 | /* first reschedule or stop timer */ |
1114 | /* first reschedule or stop timer */ |
840 | if (w->interval) |
1115 | if (w->reschedule_cb) |
841 | { |
1116 | { |
|
|
1117 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1118 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1119 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1120 | } |
|
|
1121 | else if (w->interval) |
|
|
1122 | { |
842 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1123 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
843 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1124 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
844 | downheap ((WT *)periodics, periodiccnt, 0); |
1125 | downheap ((WT *)periodics, periodiccnt, 0); |
845 | } |
1126 | } |
846 | else |
1127 | else |
847 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1128 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
848 | |
1129 | |
849 | event (EV_A_ (W)w, EV_PERIODIC); |
1130 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
850 | } |
1131 | } |
851 | } |
1132 | } |
852 | |
1133 | |
853 | static void |
1134 | static void |
854 | periodics_reschedule (EV_P) |
1135 | periodics_reschedule (EV_P) |
… | |
… | |
858 | /* adjust periodics after time jump */ |
1139 | /* adjust periodics after time jump */ |
859 | for (i = 0; i < periodiccnt; ++i) |
1140 | for (i = 0; i < periodiccnt; ++i) |
860 | { |
1141 | { |
861 | struct ev_periodic *w = periodics [i]; |
1142 | struct ev_periodic *w = periodics [i]; |
862 | |
1143 | |
|
|
1144 | if (w->reschedule_cb) |
|
|
1145 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
863 | if (w->interval) |
1146 | else if (w->interval) |
864 | { |
|
|
865 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1147 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
866 | |
|
|
867 | if (fabs (diff) >= 1e-4) |
|
|
868 | { |
|
|
869 | ev_periodic_stop (EV_A_ w); |
|
|
870 | ev_periodic_start (EV_A_ w); |
|
|
871 | |
|
|
872 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
873 | } |
|
|
874 | } |
|
|
875 | } |
1148 | } |
|
|
1149 | |
|
|
1150 | /* now rebuild the heap */ |
|
|
1151 | for (i = periodiccnt >> 1; i--; ) |
|
|
1152 | downheap ((WT *)periodics, periodiccnt, i); |
876 | } |
1153 | } |
|
|
1154 | #endif |
877 | |
1155 | |
878 | inline int |
1156 | inline int |
879 | time_update_monotonic (EV_P) |
1157 | time_update_monotonic (EV_P) |
880 | { |
1158 | { |
881 | mn_now = get_clock (); |
1159 | mn_now = get_clock (); |
882 | |
1160 | |
883 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1161 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
884 | { |
1162 | { |
885 | rt_now = rtmn_diff + mn_now; |
1163 | ev_rt_now = rtmn_diff + mn_now; |
886 | return 0; |
1164 | return 0; |
887 | } |
1165 | } |
888 | else |
1166 | else |
889 | { |
1167 | { |
890 | now_floor = mn_now; |
1168 | now_floor = mn_now; |
891 | rt_now = ev_time (); |
1169 | ev_rt_now = ev_time (); |
892 | return 1; |
1170 | return 1; |
893 | } |
1171 | } |
894 | } |
1172 | } |
895 | |
1173 | |
896 | static void |
1174 | inline void |
897 | time_update (EV_P) |
1175 | time_update (EV_P) |
898 | { |
1176 | { |
899 | int i; |
1177 | int i; |
900 | |
1178 | |
901 | #if EV_USE_MONOTONIC |
1179 | #if EV_USE_MONOTONIC |
… | |
… | |
905 | { |
1183 | { |
906 | ev_tstamp odiff = rtmn_diff; |
1184 | ev_tstamp odiff = rtmn_diff; |
907 | |
1185 | |
908 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1186 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
909 | { |
1187 | { |
910 | rtmn_diff = rt_now - mn_now; |
1188 | rtmn_diff = ev_rt_now - mn_now; |
911 | |
1189 | |
912 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1190 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
913 | return; /* all is well */ |
1191 | return; /* all is well */ |
914 | |
1192 | |
915 | rt_now = ev_time (); |
1193 | ev_rt_now = ev_time (); |
916 | mn_now = get_clock (); |
1194 | mn_now = get_clock (); |
917 | now_floor = mn_now; |
1195 | now_floor = mn_now; |
918 | } |
1196 | } |
919 | |
1197 | |
|
|
1198 | # if EV_PERIODICS |
920 | periodics_reschedule (EV_A); |
1199 | periodics_reschedule (EV_A); |
|
|
1200 | # endif |
921 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1201 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
922 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1202 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
923 | } |
1203 | } |
924 | } |
1204 | } |
925 | else |
1205 | else |
926 | #endif |
1206 | #endif |
927 | { |
1207 | { |
928 | rt_now = ev_time (); |
1208 | ev_rt_now = ev_time (); |
929 | |
1209 | |
930 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1210 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
931 | { |
1211 | { |
|
|
1212 | #if EV_PERIODICS |
932 | periodics_reschedule (EV_A); |
1213 | periodics_reschedule (EV_A); |
|
|
1214 | #endif |
933 | |
1215 | |
934 | /* adjust timers. this is easy, as the offset is the same for all */ |
1216 | /* adjust timers. this is easy, as the offset is the same for all */ |
935 | for (i = 0; i < timercnt; ++i) |
1217 | for (i = 0; i < timercnt; ++i) |
936 | ((WT)timers [i])->at += rt_now - mn_now; |
1218 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
937 | } |
1219 | } |
938 | |
1220 | |
939 | mn_now = rt_now; |
1221 | mn_now = ev_rt_now; |
940 | } |
1222 | } |
941 | } |
1223 | } |
942 | |
1224 | |
943 | void |
1225 | void |
944 | ev_ref (EV_P) |
1226 | ev_ref (EV_P) |
… | |
… | |
958 | ev_loop (EV_P_ int flags) |
1240 | ev_loop (EV_P_ int flags) |
959 | { |
1241 | { |
960 | double block; |
1242 | double block; |
961 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1243 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
962 | |
1244 | |
963 | do |
1245 | while (activecnt) |
964 | { |
1246 | { |
965 | /* queue check watchers (and execute them) */ |
1247 | /* queue check watchers (and execute them) */ |
966 | if (expect_false (preparecnt)) |
1248 | if (expect_false (preparecnt)) |
967 | { |
1249 | { |
968 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1250 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
969 | call_pending (EV_A); |
1251 | call_pending (EV_A); |
970 | } |
1252 | } |
971 | |
1253 | |
|
|
1254 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1255 | if (expect_false (postfork)) |
|
|
1256 | loop_fork (EV_A); |
|
|
1257 | |
972 | /* update fd-related kernel structures */ |
1258 | /* update fd-related kernel structures */ |
973 | fd_reify (EV_A); |
1259 | fd_reify (EV_A); |
974 | |
1260 | |
975 | /* calculate blocking time */ |
1261 | /* calculate blocking time */ |
976 | |
1262 | |
977 | /* we only need this for !monotonic clockor timers, but as we basically |
1263 | /* we only need this for !monotonic clock or timers, but as we basically |
978 | always have timers, we just calculate it always */ |
1264 | always have timers, we just calculate it always */ |
979 | #if EV_USE_MONOTONIC |
1265 | #if EV_USE_MONOTONIC |
980 | if (expect_true (have_monotonic)) |
1266 | if (expect_true (have_monotonic)) |
981 | time_update_monotonic (EV_A); |
1267 | time_update_monotonic (EV_A); |
982 | else |
1268 | else |
983 | #endif |
1269 | #endif |
984 | { |
1270 | { |
985 | rt_now = ev_time (); |
1271 | ev_rt_now = ev_time (); |
986 | mn_now = rt_now; |
1272 | mn_now = ev_rt_now; |
987 | } |
1273 | } |
988 | |
1274 | |
989 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1275 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
990 | block = 0.; |
1276 | block = 0.; |
991 | else |
1277 | else |
992 | { |
1278 | { |
993 | block = MAX_BLOCKTIME; |
1279 | block = MAX_BLOCKTIME; |
994 | |
1280 | |
995 | if (timercnt) |
1281 | if (timercnt) |
996 | { |
1282 | { |
997 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1283 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
998 | if (block > to) block = to; |
1284 | if (block > to) block = to; |
999 | } |
1285 | } |
1000 | |
1286 | |
|
|
1287 | #if EV_PERIODICS |
1001 | if (periodiccnt) |
1288 | if (periodiccnt) |
1002 | { |
1289 | { |
1003 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1290 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1004 | if (block > to) block = to; |
1291 | if (block > to) block = to; |
1005 | } |
1292 | } |
|
|
1293 | #endif |
1006 | |
1294 | |
1007 | if (block < 0.) block = 0.; |
1295 | if (expect_false (block < 0.)) block = 0.; |
1008 | } |
1296 | } |
1009 | |
1297 | |
1010 | method_poll (EV_A_ block); |
1298 | backend_poll (EV_A_ block); |
1011 | |
1299 | |
1012 | /* update rt_now, do magic */ |
1300 | /* update ev_rt_now, do magic */ |
1013 | time_update (EV_A); |
1301 | time_update (EV_A); |
1014 | |
1302 | |
1015 | /* queue pending timers and reschedule them */ |
1303 | /* queue pending timers and reschedule them */ |
1016 | timers_reify (EV_A); /* relative timers called last */ |
1304 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1305 | #if EV_PERIODICS |
1017 | periodics_reify (EV_A); /* absolute timers called first */ |
1306 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1307 | #endif |
1018 | |
1308 | |
1019 | /* queue idle watchers unless io or timers are pending */ |
1309 | /* queue idle watchers unless io or timers are pending */ |
1020 | if (!pendingcnt) |
1310 | if (idlecnt && !any_pending (EV_A)) |
1021 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1311 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1022 | |
1312 | |
1023 | /* queue check watchers, to be executed first */ |
1313 | /* queue check watchers, to be executed first */ |
1024 | if (checkcnt) |
1314 | if (expect_false (checkcnt)) |
1025 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1315 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1026 | |
1316 | |
1027 | call_pending (EV_A); |
1317 | call_pending (EV_A); |
|
|
1318 | |
|
|
1319 | if (expect_false (loop_done)) |
|
|
1320 | break; |
1028 | } |
1321 | } |
1029 | while (activecnt && !loop_done); |
|
|
1030 | |
1322 | |
1031 | if (loop_done != 2) |
1323 | if (loop_done != 2) |
1032 | loop_done = 0; |
1324 | loop_done = 0; |
1033 | } |
1325 | } |
1034 | |
1326 | |
… | |
… | |
1094 | void |
1386 | void |
1095 | ev_io_start (EV_P_ struct ev_io *w) |
1387 | ev_io_start (EV_P_ struct ev_io *w) |
1096 | { |
1388 | { |
1097 | int fd = w->fd; |
1389 | int fd = w->fd; |
1098 | |
1390 | |
1099 | if (ev_is_active (w)) |
1391 | if (expect_false (ev_is_active (w))) |
1100 | return; |
1392 | return; |
1101 | |
1393 | |
1102 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1394 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1103 | |
1395 | |
1104 | ev_start (EV_A_ (W)w, 1); |
1396 | ev_start (EV_A_ (W)w, 1); |
1105 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1397 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1106 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1398 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1107 | |
1399 | |
1108 | fd_change (EV_A_ fd); |
1400 | fd_change (EV_A_ fd); |
1109 | } |
1401 | } |
1110 | |
1402 | |
1111 | void |
1403 | void |
1112 | ev_io_stop (EV_P_ struct ev_io *w) |
1404 | ev_io_stop (EV_P_ struct ev_io *w) |
1113 | { |
1405 | { |
1114 | ev_clear_pending (EV_A_ (W)w); |
1406 | ev_clear_pending (EV_A_ (W)w); |
1115 | if (!ev_is_active (w)) |
1407 | if (expect_false (!ev_is_active (w))) |
1116 | return; |
1408 | return; |
|
|
1409 | |
|
|
1410 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1117 | |
1411 | |
1118 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1412 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1119 | ev_stop (EV_A_ (W)w); |
1413 | ev_stop (EV_A_ (W)w); |
1120 | |
1414 | |
1121 | fd_change (EV_A_ w->fd); |
1415 | fd_change (EV_A_ w->fd); |
1122 | } |
1416 | } |
1123 | |
1417 | |
1124 | void |
1418 | void |
1125 | ev_timer_start (EV_P_ struct ev_timer *w) |
1419 | ev_timer_start (EV_P_ struct ev_timer *w) |
1126 | { |
1420 | { |
1127 | if (ev_is_active (w)) |
1421 | if (expect_false (ev_is_active (w))) |
1128 | return; |
1422 | return; |
1129 | |
1423 | |
1130 | ((WT)w)->at += mn_now; |
1424 | ((WT)w)->at += mn_now; |
1131 | |
1425 | |
1132 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1426 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1133 | |
1427 | |
1134 | ev_start (EV_A_ (W)w, ++timercnt); |
1428 | ev_start (EV_A_ (W)w, ++timercnt); |
1135 | array_needsize (timers, timermax, timercnt, ); |
1429 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1136 | timers [timercnt - 1] = w; |
1430 | timers [timercnt - 1] = w; |
1137 | upheap ((WT *)timers, timercnt - 1); |
1431 | upheap ((WT *)timers, timercnt - 1); |
1138 | |
1432 | |
1139 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1433 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1140 | } |
1434 | } |
1141 | |
1435 | |
1142 | void |
1436 | void |
1143 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1437 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1144 | { |
1438 | { |
1145 | ev_clear_pending (EV_A_ (W)w); |
1439 | ev_clear_pending (EV_A_ (W)w); |
1146 | if (!ev_is_active (w)) |
1440 | if (expect_false (!ev_is_active (w))) |
1147 | return; |
1441 | return; |
1148 | |
1442 | |
1149 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1443 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1150 | |
1444 | |
1151 | if (((W)w)->active < timercnt--) |
1445 | if (expect_true (((W)w)->active < timercnt--)) |
1152 | { |
1446 | { |
1153 | timers [((W)w)->active - 1] = timers [timercnt]; |
1447 | timers [((W)w)->active - 1] = timers [timercnt]; |
1154 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1448 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1155 | } |
1449 | } |
1156 | |
1450 | |
1157 | ((WT)w)->at = w->repeat; |
1451 | ((WT)w)->at -= mn_now; |
1158 | |
1452 | |
1159 | ev_stop (EV_A_ (W)w); |
1453 | ev_stop (EV_A_ (W)w); |
1160 | } |
1454 | } |
1161 | |
1455 | |
1162 | void |
1456 | void |
… | |
… | |
1165 | if (ev_is_active (w)) |
1459 | if (ev_is_active (w)) |
1166 | { |
1460 | { |
1167 | if (w->repeat) |
1461 | if (w->repeat) |
1168 | { |
1462 | { |
1169 | ((WT)w)->at = mn_now + w->repeat; |
1463 | ((WT)w)->at = mn_now + w->repeat; |
1170 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1464 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1171 | } |
1465 | } |
1172 | else |
1466 | else |
1173 | ev_timer_stop (EV_A_ w); |
1467 | ev_timer_stop (EV_A_ w); |
1174 | } |
1468 | } |
1175 | else if (w->repeat) |
1469 | else if (w->repeat) |
|
|
1470 | { |
|
|
1471 | w->at = w->repeat; |
1176 | ev_timer_start (EV_A_ w); |
1472 | ev_timer_start (EV_A_ w); |
|
|
1473 | } |
1177 | } |
1474 | } |
1178 | |
1475 | |
|
|
1476 | #if EV_PERIODICS |
1179 | void |
1477 | void |
1180 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1478 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1181 | { |
1479 | { |
1182 | if (ev_is_active (w)) |
1480 | if (expect_false (ev_is_active (w))) |
1183 | return; |
1481 | return; |
1184 | |
1482 | |
|
|
1483 | if (w->reschedule_cb) |
|
|
1484 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1485 | else if (w->interval) |
|
|
1486 | { |
1185 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1487 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1186 | |
|
|
1187 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1488 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1188 | if (w->interval) |
|
|
1189 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1489 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1490 | } |
1190 | |
1491 | |
1191 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1492 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1192 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1493 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1193 | periodics [periodiccnt - 1] = w; |
1494 | periodics [periodiccnt - 1] = w; |
1194 | upheap ((WT *)periodics, periodiccnt - 1); |
1495 | upheap ((WT *)periodics, periodiccnt - 1); |
1195 | |
1496 | |
1196 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1497 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1197 | } |
1498 | } |
1198 | |
1499 | |
1199 | void |
1500 | void |
1200 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1501 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1201 | { |
1502 | { |
1202 | ev_clear_pending (EV_A_ (W)w); |
1503 | ev_clear_pending (EV_A_ (W)w); |
1203 | if (!ev_is_active (w)) |
1504 | if (expect_false (!ev_is_active (w))) |
1204 | return; |
1505 | return; |
1205 | |
1506 | |
1206 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1507 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1207 | |
1508 | |
1208 | if (((W)w)->active < periodiccnt--) |
1509 | if (expect_true (((W)w)->active < periodiccnt--)) |
1209 | { |
1510 | { |
1210 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1511 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1211 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1512 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1212 | } |
1513 | } |
1213 | |
1514 | |
1214 | ev_stop (EV_A_ (W)w); |
1515 | ev_stop (EV_A_ (W)w); |
1215 | } |
1516 | } |
1216 | |
1517 | |
1217 | void |
1518 | void |
|
|
1519 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1520 | { |
|
|
1521 | /* TODO: use adjustheap and recalculation */ |
|
|
1522 | ev_periodic_stop (EV_A_ w); |
|
|
1523 | ev_periodic_start (EV_A_ w); |
|
|
1524 | } |
|
|
1525 | #endif |
|
|
1526 | |
|
|
1527 | void |
1218 | ev_idle_start (EV_P_ struct ev_idle *w) |
1528 | ev_idle_start (EV_P_ struct ev_idle *w) |
1219 | { |
1529 | { |
1220 | if (ev_is_active (w)) |
1530 | if (expect_false (ev_is_active (w))) |
1221 | return; |
1531 | return; |
1222 | |
1532 | |
1223 | ev_start (EV_A_ (W)w, ++idlecnt); |
1533 | ev_start (EV_A_ (W)w, ++idlecnt); |
1224 | array_needsize (idles, idlemax, idlecnt, ); |
1534 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1225 | idles [idlecnt - 1] = w; |
1535 | idles [idlecnt - 1] = w; |
1226 | } |
1536 | } |
1227 | |
1537 | |
1228 | void |
1538 | void |
1229 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1539 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1230 | { |
1540 | { |
1231 | ev_clear_pending (EV_A_ (W)w); |
1541 | ev_clear_pending (EV_A_ (W)w); |
1232 | if (ev_is_active (w)) |
1542 | if (expect_false (!ev_is_active (w))) |
1233 | return; |
1543 | return; |
1234 | |
1544 | |
1235 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1545 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1236 | ev_stop (EV_A_ (W)w); |
1546 | ev_stop (EV_A_ (W)w); |
1237 | } |
1547 | } |
1238 | |
1548 | |
1239 | void |
1549 | void |
1240 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1550 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1241 | { |
1551 | { |
1242 | if (ev_is_active (w)) |
1552 | if (expect_false (ev_is_active (w))) |
1243 | return; |
1553 | return; |
1244 | |
1554 | |
1245 | ev_start (EV_A_ (W)w, ++preparecnt); |
1555 | ev_start (EV_A_ (W)w, ++preparecnt); |
1246 | array_needsize (prepares, preparemax, preparecnt, ); |
1556 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1247 | prepares [preparecnt - 1] = w; |
1557 | prepares [preparecnt - 1] = w; |
1248 | } |
1558 | } |
1249 | |
1559 | |
1250 | void |
1560 | void |
1251 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1561 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1252 | { |
1562 | { |
1253 | ev_clear_pending (EV_A_ (W)w); |
1563 | ev_clear_pending (EV_A_ (W)w); |
1254 | if (ev_is_active (w)) |
1564 | if (expect_false (!ev_is_active (w))) |
1255 | return; |
1565 | return; |
1256 | |
1566 | |
1257 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1567 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1258 | ev_stop (EV_A_ (W)w); |
1568 | ev_stop (EV_A_ (W)w); |
1259 | } |
1569 | } |
1260 | |
1570 | |
1261 | void |
1571 | void |
1262 | ev_check_start (EV_P_ struct ev_check *w) |
1572 | ev_check_start (EV_P_ struct ev_check *w) |
1263 | { |
1573 | { |
1264 | if (ev_is_active (w)) |
1574 | if (expect_false (ev_is_active (w))) |
1265 | return; |
1575 | return; |
1266 | |
1576 | |
1267 | ev_start (EV_A_ (W)w, ++checkcnt); |
1577 | ev_start (EV_A_ (W)w, ++checkcnt); |
1268 | array_needsize (checks, checkmax, checkcnt, ); |
1578 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1269 | checks [checkcnt - 1] = w; |
1579 | checks [checkcnt - 1] = w; |
1270 | } |
1580 | } |
1271 | |
1581 | |
1272 | void |
1582 | void |
1273 | ev_check_stop (EV_P_ struct ev_check *w) |
1583 | ev_check_stop (EV_P_ struct ev_check *w) |
1274 | { |
1584 | { |
1275 | ev_clear_pending (EV_A_ (W)w); |
1585 | ev_clear_pending (EV_A_ (W)w); |
1276 | if (ev_is_active (w)) |
1586 | if (expect_false (!ev_is_active (w))) |
1277 | return; |
1587 | return; |
1278 | |
1588 | |
1279 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1589 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1280 | ev_stop (EV_A_ (W)w); |
1590 | ev_stop (EV_A_ (W)w); |
1281 | } |
1591 | } |
… | |
… | |
1286 | |
1596 | |
1287 | void |
1597 | void |
1288 | ev_signal_start (EV_P_ struct ev_signal *w) |
1598 | ev_signal_start (EV_P_ struct ev_signal *w) |
1289 | { |
1599 | { |
1290 | #if EV_MULTIPLICITY |
1600 | #if EV_MULTIPLICITY |
1291 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1601 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1292 | #endif |
1602 | #endif |
1293 | if (ev_is_active (w)) |
1603 | if (expect_false (ev_is_active (w))) |
1294 | return; |
1604 | return; |
1295 | |
1605 | |
1296 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1606 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1297 | |
1607 | |
1298 | ev_start (EV_A_ (W)w, 1); |
1608 | ev_start (EV_A_ (W)w, 1); |
1299 | array_needsize (signals, signalmax, w->signum, signals_init); |
1609 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1300 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1610 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1301 | |
1611 | |
1302 | if (!((WL)w)->next) |
1612 | if (!((WL)w)->next) |
1303 | { |
1613 | { |
|
|
1614 | #if _WIN32 |
|
|
1615 | signal (w->signum, sighandler); |
|
|
1616 | #else |
1304 | struct sigaction sa; |
1617 | struct sigaction sa; |
1305 | sa.sa_handler = sighandler; |
1618 | sa.sa_handler = sighandler; |
1306 | sigfillset (&sa.sa_mask); |
1619 | sigfillset (&sa.sa_mask); |
1307 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1620 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1308 | sigaction (w->signum, &sa, 0); |
1621 | sigaction (w->signum, &sa, 0); |
|
|
1622 | #endif |
1309 | } |
1623 | } |
1310 | } |
1624 | } |
1311 | |
1625 | |
1312 | void |
1626 | void |
1313 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1627 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1314 | { |
1628 | { |
1315 | ev_clear_pending (EV_A_ (W)w); |
1629 | ev_clear_pending (EV_A_ (W)w); |
1316 | if (!ev_is_active (w)) |
1630 | if (expect_false (!ev_is_active (w))) |
1317 | return; |
1631 | return; |
1318 | |
1632 | |
1319 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1633 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1320 | ev_stop (EV_A_ (W)w); |
1634 | ev_stop (EV_A_ (W)w); |
1321 | |
1635 | |
… | |
… | |
1325 | |
1639 | |
1326 | void |
1640 | void |
1327 | ev_child_start (EV_P_ struct ev_child *w) |
1641 | ev_child_start (EV_P_ struct ev_child *w) |
1328 | { |
1642 | { |
1329 | #if EV_MULTIPLICITY |
1643 | #if EV_MULTIPLICITY |
1330 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1644 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1331 | #endif |
1645 | #endif |
1332 | if (ev_is_active (w)) |
1646 | if (expect_false (ev_is_active (w))) |
1333 | return; |
1647 | return; |
1334 | |
1648 | |
1335 | ev_start (EV_A_ (W)w, 1); |
1649 | ev_start (EV_A_ (W)w, 1); |
1336 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1650 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1337 | } |
1651 | } |
1338 | |
1652 | |
1339 | void |
1653 | void |
1340 | ev_child_stop (EV_P_ struct ev_child *w) |
1654 | ev_child_stop (EV_P_ struct ev_child *w) |
1341 | { |
1655 | { |
1342 | ev_clear_pending (EV_A_ (W)w); |
1656 | ev_clear_pending (EV_A_ (W)w); |
1343 | if (ev_is_active (w)) |
1657 | if (expect_false (!ev_is_active (w))) |
1344 | return; |
1658 | return; |
1345 | |
1659 | |
1346 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1660 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1347 | ev_stop (EV_A_ (W)w); |
1661 | ev_stop (EV_A_ (W)w); |
1348 | } |
1662 | } |
… | |
… | |
1363 | void (*cb)(int revents, void *arg) = once->cb; |
1677 | void (*cb)(int revents, void *arg) = once->cb; |
1364 | void *arg = once->arg; |
1678 | void *arg = once->arg; |
1365 | |
1679 | |
1366 | ev_io_stop (EV_A_ &once->io); |
1680 | ev_io_stop (EV_A_ &once->io); |
1367 | ev_timer_stop (EV_A_ &once->to); |
1681 | ev_timer_stop (EV_A_ &once->to); |
1368 | free (once); |
1682 | ev_free (once); |
1369 | |
1683 | |
1370 | cb (revents, arg); |
1684 | cb (revents, arg); |
1371 | } |
1685 | } |
1372 | |
1686 | |
1373 | static void |
1687 | static void |
… | |
… | |
1383 | } |
1697 | } |
1384 | |
1698 | |
1385 | void |
1699 | void |
1386 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1700 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1387 | { |
1701 | { |
1388 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1702 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1389 | |
1703 | |
1390 | if (!once) |
1704 | if (expect_false (!once)) |
|
|
1705 | { |
1391 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1706 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1392 | else |
1707 | return; |
1393 | { |
1708 | } |
|
|
1709 | |
1394 | once->cb = cb; |
1710 | once->cb = cb; |
1395 | once->arg = arg; |
1711 | once->arg = arg; |
1396 | |
1712 | |
1397 | ev_watcher_init (&once->io, once_cb_io); |
1713 | ev_init (&once->io, once_cb_io); |
1398 | if (fd >= 0) |
1714 | if (fd >= 0) |
1399 | { |
1715 | { |
1400 | ev_io_set (&once->io, fd, events); |
1716 | ev_io_set (&once->io, fd, events); |
1401 | ev_io_start (EV_A_ &once->io); |
1717 | ev_io_start (EV_A_ &once->io); |
1402 | } |
1718 | } |
1403 | |
1719 | |
1404 | ev_watcher_init (&once->to, once_cb_to); |
1720 | ev_init (&once->to, once_cb_to); |
1405 | if (timeout >= 0.) |
1721 | if (timeout >= 0.) |
1406 | { |
1722 | { |
1407 | ev_timer_set (&once->to, timeout, 0.); |
1723 | ev_timer_set (&once->to, timeout, 0.); |
1408 | ev_timer_start (EV_A_ &once->to); |
1724 | ev_timer_start (EV_A_ &once->to); |
1409 | } |
|
|
1410 | } |
1725 | } |
1411 | } |
1726 | } |
1412 | |
1727 | |
|
|
1728 | #ifdef __cplusplus |
|
|
1729 | } |
|
|
1730 | #endif |
|
|
1731 | |