… | |
… | |
32 | #ifdef __cplusplus |
32 | #ifdef __cplusplus |
33 | extern "C" { |
33 | extern "C" { |
34 | #endif |
34 | #endif |
35 | |
35 | |
36 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
|
|
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
37 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
38 | |
42 | |
39 | # if HAVE_CLOCK_GETTIME |
43 | # if HAVE_CLOCK_GETTIME |
40 | # ifndef EV_USE_MONOTONIC |
44 | # ifndef EV_USE_MONOTONIC |
41 | # define EV_USE_MONOTONIC 1 |
45 | # define EV_USE_MONOTONIC 1 |
42 | # endif |
46 | # endif |
43 | # ifndef EV_USE_REALTIME |
47 | # ifndef EV_USE_REALTIME |
44 | # define EV_USE_REALTIME 1 |
48 | # define EV_USE_REALTIME 1 |
45 | # endif |
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 |
46 | # endif |
57 | # endif |
47 | |
58 | |
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
59 | # ifndef EV_USE_SELECT |
|
|
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
49 | # define EV_USE_SELECT 1 |
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
50 | # endif |
65 | # endif |
51 | |
66 | |
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
67 | # ifndef EV_USE_POLL |
|
|
68 | # if HAVE_POLL && HAVE_POLL_H |
53 | # define EV_USE_POLL 1 |
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
54 | # endif |
73 | # endif |
55 | |
74 | |
56 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
75 | # ifndef EV_USE_EPOLL |
|
|
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
57 | # define EV_USE_EPOLL 1 |
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
58 | # endif |
81 | # endif |
59 | |
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
61 | # define EV_USE_KQUEUE 1 |
85 | # define EV_USE_KQUEUE 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_KQUEUE 0 |
|
|
88 | # endif |
62 | # endif |
89 | # endif |
63 | |
90 | |
64 | # if HAVE_PORT_H && HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) |
91 | # ifndef EV_USE_PORT |
|
|
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
65 | # define EV_USE_PORT 1 |
93 | # define EV_USE_PORT 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_PORT 0 |
|
|
96 | # endif |
|
|
97 | # endif |
|
|
98 | |
|
|
99 | # ifndef EV_USE_INOTIFY |
|
|
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
101 | # define EV_USE_INOTIFY 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_INOTIFY 0 |
|
|
104 | # endif |
66 | # endif |
105 | # endif |
67 | |
106 | |
68 | #endif |
107 | #endif |
69 | |
108 | |
70 | #include <math.h> |
109 | #include <math.h> |
… | |
… | |
79 | #include <sys/types.h> |
118 | #include <sys/types.h> |
80 | #include <time.h> |
119 | #include <time.h> |
81 | |
120 | |
82 | #include <signal.h> |
121 | #include <signal.h> |
83 | |
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
|
|
128 | |
84 | #ifndef _WIN32 |
129 | #ifndef _WIN32 |
85 | # include <unistd.h> |
|
|
86 | # include <sys/time.h> |
130 | # include <sys/time.h> |
87 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
|
|
132 | # include <unistd.h> |
88 | #else |
133 | #else |
89 | # define WIN32_LEAN_AND_MEAN |
134 | # define WIN32_LEAN_AND_MEAN |
90 | # include <windows.h> |
135 | # include <windows.h> |
91 | # ifndef EV_SELECT_IS_WINSOCKET |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
92 | # define EV_SELECT_IS_WINSOCKET 1 |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
… | |
… | |
94 | #endif |
139 | #endif |
95 | |
140 | |
96 | /**/ |
141 | /**/ |
97 | |
142 | |
98 | #ifndef EV_USE_MONOTONIC |
143 | #ifndef EV_USE_MONOTONIC |
99 | # define EV_USE_MONOTONIC 1 |
144 | # define EV_USE_MONOTONIC 0 |
100 | #endif |
145 | #endif |
101 | |
146 | |
102 | #ifndef EV_USE_REALTIME |
147 | #ifndef EV_USE_REALTIME |
103 | # define EV_USE_REALTIME 1 |
148 | # define EV_USE_REALTIME 0 |
104 | #endif |
149 | #endif |
105 | |
150 | |
106 | #ifndef EV_USE_SELECT |
151 | #ifndef EV_USE_SELECT |
107 | # define EV_USE_SELECT 1 |
152 | # define EV_USE_SELECT 1 |
108 | # define EV_SELECT_USE_FD_SET 1 |
|
|
109 | #endif |
153 | #endif |
110 | |
154 | |
111 | #ifndef EV_USE_POLL |
155 | #ifndef EV_USE_POLL |
112 | # ifdef _WIN32 |
156 | # ifdef _WIN32 |
113 | # define EV_USE_POLL 0 |
157 | # define EV_USE_POLL 0 |
… | |
… | |
126 | |
170 | |
127 | #ifndef EV_USE_PORT |
171 | #ifndef EV_USE_PORT |
128 | # define EV_USE_PORT 0 |
172 | # define EV_USE_PORT 0 |
129 | #endif |
173 | #endif |
130 | |
174 | |
|
|
175 | #ifndef EV_USE_INOTIFY |
|
|
176 | # define EV_USE_INOTIFY 0 |
|
|
177 | #endif |
|
|
178 | |
|
|
179 | #ifndef EV_PID_HASHSIZE |
|
|
180 | # if EV_MINIMAL |
|
|
181 | # define EV_PID_HASHSIZE 1 |
|
|
182 | # else |
|
|
183 | # define EV_PID_HASHSIZE 16 |
|
|
184 | # endif |
|
|
185 | #endif |
|
|
186 | |
|
|
187 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
188 | # if EV_MINIMAL |
|
|
189 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
190 | # else |
|
|
191 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
192 | # endif |
|
|
193 | #endif |
|
|
194 | |
131 | /**/ |
195 | /**/ |
132 | |
|
|
133 | /* darwin simply cannot be helped */ |
|
|
134 | #ifdef __APPLE__ |
|
|
135 | # undef EV_USE_POLL |
|
|
136 | # undef EV_USE_KQUEUE |
|
|
137 | #endif |
|
|
138 | |
196 | |
139 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
140 | # undef EV_USE_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
141 | # define EV_USE_MONOTONIC 0 |
199 | # define EV_USE_MONOTONIC 0 |
142 | #endif |
200 | #endif |
… | |
… | |
148 | |
206 | |
149 | #if EV_SELECT_IS_WINSOCKET |
207 | #if EV_SELECT_IS_WINSOCKET |
150 | # include <winsock.h> |
208 | # include <winsock.h> |
151 | #endif |
209 | #endif |
152 | |
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
153 | /**/ |
219 | /**/ |
154 | |
220 | |
|
|
221 | /* |
|
|
222 | * This is used to avoid floating point rounding problems. |
|
|
223 | * It is added to ev_rt_now when scheduling periodics |
|
|
224 | * to ensure progress, time-wise, even when rounding |
|
|
225 | * errors are against us. |
|
|
226 | * This value is good at least till the year 4000. |
|
|
227 | * Better solutions welcome. |
|
|
228 | */ |
|
|
229 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
|
|
230 | |
155 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
231 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
156 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
232 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
157 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
158 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
159 | |
|
|
160 | #ifdef EV_H |
|
|
161 | # include EV_H |
|
|
162 | #else |
|
|
163 | # include "ev.h" |
|
|
164 | #endif |
|
|
165 | |
234 | |
166 | #if __GNUC__ >= 3 |
235 | #if __GNUC__ >= 3 |
167 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
168 | # define inline inline |
237 | # define noinline __attribute__ ((noinline)) |
169 | #else |
238 | #else |
170 | # define expect(expr,value) (expr) |
239 | # define expect(expr,value) (expr) |
171 | # define inline static |
240 | # define noinline |
|
|
241 | # if __STDC_VERSION__ < 199901L |
|
|
242 | # define inline |
|
|
243 | # endif |
172 | #endif |
244 | #endif |
173 | |
245 | |
174 | #define expect_false(expr) expect ((expr) != 0, 0) |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
175 | #define expect_true(expr) expect ((expr) != 0, 1) |
247 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
248 | #define inline_size static inline |
|
|
249 | |
|
|
250 | #if EV_MINIMAL |
|
|
251 | # define inline_speed static noinline |
|
|
252 | #else |
|
|
253 | # define inline_speed static inline |
|
|
254 | #endif |
176 | |
255 | |
177 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
256 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
178 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
257 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
179 | |
258 | |
180 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
259 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
181 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
260 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
182 | |
261 | |
183 | typedef struct ev_watcher *W; |
262 | typedef ev_watcher *W; |
184 | typedef struct ev_watcher_list *WL; |
263 | typedef ev_watcher_list *WL; |
185 | typedef struct ev_watcher_time *WT; |
264 | typedef ev_watcher_time *WT; |
186 | |
265 | |
187 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
188 | |
267 | |
189 | #ifdef _WIN32 |
268 | #ifdef _WIN32 |
190 | # include "ev_win32.c" |
269 | # include "ev_win32.c" |
… | |
… | |
192 | |
271 | |
193 | /*****************************************************************************/ |
272 | /*****************************************************************************/ |
194 | |
273 | |
195 | static void (*syserr_cb)(const char *msg); |
274 | static void (*syserr_cb)(const char *msg); |
196 | |
275 | |
|
|
276 | void |
197 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
277 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
198 | { |
278 | { |
199 | syserr_cb = cb; |
279 | syserr_cb = cb; |
200 | } |
280 | } |
201 | |
281 | |
202 | static void |
282 | static void noinline |
203 | syserr (const char *msg) |
283 | syserr (const char *msg) |
204 | { |
284 | { |
205 | if (!msg) |
285 | if (!msg) |
206 | msg = "(libev) system error"; |
286 | msg = "(libev) system error"; |
207 | |
287 | |
… | |
… | |
214 | } |
294 | } |
215 | } |
295 | } |
216 | |
296 | |
217 | static void *(*alloc)(void *ptr, long size); |
297 | static void *(*alloc)(void *ptr, long size); |
218 | |
298 | |
|
|
299 | void |
219 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
220 | { |
301 | { |
221 | alloc = cb; |
302 | alloc = cb; |
222 | } |
303 | } |
223 | |
304 | |
224 | static void * |
305 | inline_speed void * |
225 | ev_realloc (void *ptr, long size) |
306 | ev_realloc (void *ptr, long size) |
226 | { |
307 | { |
227 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
228 | |
309 | |
229 | if (!ptr && size) |
310 | if (!ptr && size) |
… | |
… | |
253 | typedef struct |
334 | typedef struct |
254 | { |
335 | { |
255 | W w; |
336 | W w; |
256 | int events; |
337 | int events; |
257 | } ANPENDING; |
338 | } ANPENDING; |
|
|
339 | |
|
|
340 | #if EV_USE_INOTIFY |
|
|
341 | typedef struct |
|
|
342 | { |
|
|
343 | WL head; |
|
|
344 | } ANFS; |
|
|
345 | #endif |
258 | |
346 | |
259 | #if EV_MULTIPLICITY |
347 | #if EV_MULTIPLICITY |
260 | |
348 | |
261 | struct ev_loop |
349 | struct ev_loop |
262 | { |
350 | { |
… | |
… | |
296 | gettimeofday (&tv, 0); |
384 | gettimeofday (&tv, 0); |
297 | return tv.tv_sec + tv.tv_usec * 1e-6; |
385 | return tv.tv_sec + tv.tv_usec * 1e-6; |
298 | #endif |
386 | #endif |
299 | } |
387 | } |
300 | |
388 | |
301 | inline ev_tstamp |
389 | ev_tstamp inline_size |
302 | get_clock (void) |
390 | get_clock (void) |
303 | { |
391 | { |
304 | #if EV_USE_MONOTONIC |
392 | #if EV_USE_MONOTONIC |
305 | if (expect_true (have_monotonic)) |
393 | if (expect_true (have_monotonic)) |
306 | { |
394 | { |
… | |
… | |
319 | { |
407 | { |
320 | return ev_rt_now; |
408 | return ev_rt_now; |
321 | } |
409 | } |
322 | #endif |
410 | #endif |
323 | |
411 | |
324 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
412 | int inline_size |
|
|
413 | array_nextsize (int elem, int cur, int cnt) |
|
|
414 | { |
|
|
415 | int ncur = cur + 1; |
|
|
416 | |
|
|
417 | do |
|
|
418 | ncur <<= 1; |
|
|
419 | while (cnt > ncur); |
|
|
420 | |
|
|
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
422 | if (elem * ncur > 4096) |
|
|
423 | { |
|
|
424 | ncur *= elem; |
|
|
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
426 | ncur = ncur - sizeof (void *) * 4; |
|
|
427 | ncur /= elem; |
|
|
428 | } |
|
|
429 | |
|
|
430 | return ncur; |
|
|
431 | } |
|
|
432 | |
|
|
433 | static noinline void * |
|
|
434 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
435 | { |
|
|
436 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
437 | return ev_realloc (base, elem * *cur); |
|
|
438 | } |
325 | |
439 | |
326 | #define array_needsize(type,base,cur,cnt,init) \ |
440 | #define array_needsize(type,base,cur,cnt,init) \ |
327 | if (expect_false ((cnt) > cur)) \ |
441 | if (expect_false ((cnt) > (cur))) \ |
328 | { \ |
442 | { \ |
329 | int newcnt = cur; \ |
443 | int ocur_ = (cur); \ |
330 | do \ |
444 | (base) = (type *)array_realloc \ |
331 | { \ |
445 | (sizeof (type), (base), &(cur), (cnt)); \ |
332 | newcnt = array_roundsize (type, newcnt << 1); \ |
446 | init ((base) + (ocur_), (cur) - ocur_); \ |
333 | } \ |
|
|
334 | while ((cnt) > newcnt); \ |
|
|
335 | \ |
|
|
336 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
337 | init (base + cur, newcnt - cur); \ |
|
|
338 | cur = newcnt; \ |
|
|
339 | } |
447 | } |
340 | |
448 | |
|
|
449 | #if 0 |
341 | #define array_slim(type,stem) \ |
450 | #define array_slim(type,stem) \ |
342 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
451 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
343 | { \ |
452 | { \ |
344 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
453 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
345 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
454 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
346 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
455 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
347 | } |
456 | } |
|
|
457 | #endif |
348 | |
458 | |
349 | #define array_free(stem, idx) \ |
459 | #define array_free(stem, idx) \ |
350 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
351 | |
461 | |
352 | /*****************************************************************************/ |
462 | /*****************************************************************************/ |
353 | |
463 | |
354 | static void |
464 | void noinline |
|
|
465 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
466 | { |
|
|
467 | W w_ = (W)w; |
|
|
468 | int pri = ABSPRI (w_); |
|
|
469 | |
|
|
470 | if (expect_false (w_->pending)) |
|
|
471 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
472 | else |
|
|
473 | { |
|
|
474 | w_->pending = ++pendingcnt [pri]; |
|
|
475 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
476 | pendings [pri][w_->pending - 1].w = w_; |
|
|
477 | pendings [pri][w_->pending - 1].events = revents; |
|
|
478 | } |
|
|
479 | } |
|
|
480 | |
|
|
481 | void inline_speed |
|
|
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
483 | { |
|
|
484 | int i; |
|
|
485 | |
|
|
486 | for (i = 0; i < eventcnt; ++i) |
|
|
487 | ev_feed_event (EV_A_ events [i], type); |
|
|
488 | } |
|
|
489 | |
|
|
490 | /*****************************************************************************/ |
|
|
491 | |
|
|
492 | void inline_size |
355 | anfds_init (ANFD *base, int count) |
493 | anfds_init (ANFD *base, int count) |
356 | { |
494 | { |
357 | while (count--) |
495 | while (count--) |
358 | { |
496 | { |
359 | base->head = 0; |
497 | base->head = 0; |
… | |
… | |
362 | |
500 | |
363 | ++base; |
501 | ++base; |
364 | } |
502 | } |
365 | } |
503 | } |
366 | |
504 | |
367 | void |
505 | void inline_speed |
368 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
369 | { |
|
|
370 | W w_ = (W)w; |
|
|
371 | |
|
|
372 | if (w_->pending) |
|
|
373 | { |
|
|
374 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
375 | return; |
|
|
376 | } |
|
|
377 | |
|
|
378 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
379 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
380 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
381 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
382 | } |
|
|
383 | |
|
|
384 | static void |
|
|
385 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
386 | { |
|
|
387 | int i; |
|
|
388 | |
|
|
389 | for (i = 0; i < eventcnt; ++i) |
|
|
390 | ev_feed_event (EV_A_ events [i], type); |
|
|
391 | } |
|
|
392 | |
|
|
393 | inline void |
|
|
394 | fd_event (EV_P_ int fd, int revents) |
506 | fd_event (EV_P_ int fd, int revents) |
395 | { |
507 | { |
396 | ANFD *anfd = anfds + fd; |
508 | ANFD *anfd = anfds + fd; |
397 | struct ev_io *w; |
509 | ev_io *w; |
398 | |
510 | |
399 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
511 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
400 | { |
512 | { |
401 | int ev = w->events & revents; |
513 | int ev = w->events & revents; |
402 | |
514 | |
403 | if (ev) |
515 | if (ev) |
404 | ev_feed_event (EV_A_ (W)w, ev); |
516 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
406 | } |
518 | } |
407 | |
519 | |
408 | void |
520 | void |
409 | ev_feed_fd_event (EV_P_ int fd, int revents) |
521 | ev_feed_fd_event (EV_P_ int fd, int revents) |
410 | { |
522 | { |
|
|
523 | if (fd >= 0 && fd < anfdmax) |
411 | fd_event (EV_A_ fd, revents); |
524 | fd_event (EV_A_ fd, revents); |
412 | } |
525 | } |
413 | |
526 | |
414 | /*****************************************************************************/ |
527 | void inline_size |
415 | |
|
|
416 | static void |
|
|
417 | fd_reify (EV_P) |
528 | fd_reify (EV_P) |
418 | { |
529 | { |
419 | int i; |
530 | int i; |
420 | |
531 | |
421 | for (i = 0; i < fdchangecnt; ++i) |
532 | for (i = 0; i < fdchangecnt; ++i) |
422 | { |
533 | { |
423 | int fd = fdchanges [i]; |
534 | int fd = fdchanges [i]; |
424 | ANFD *anfd = anfds + fd; |
535 | ANFD *anfd = anfds + fd; |
425 | struct ev_io *w; |
536 | ev_io *w; |
426 | |
537 | |
427 | int events = 0; |
538 | unsigned char events = 0; |
428 | |
539 | |
429 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
430 | events |= w->events; |
541 | events |= (unsigned char)w->events; |
431 | |
542 | |
432 | #if EV_SELECT_IS_WINSOCKET |
543 | #if EV_SELECT_IS_WINSOCKET |
433 | if (events) |
544 | if (events) |
434 | { |
545 | { |
435 | unsigned long argp; |
546 | unsigned long argp; |
436 | anfd->handle = _get_osfhandle (fd); |
547 | anfd->handle = _get_osfhandle (fd); |
437 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
438 | } |
549 | } |
439 | #endif |
550 | #endif |
440 | |
551 | |
|
|
552 | { |
|
|
553 | unsigned char o_events = anfd->events; |
|
|
554 | unsigned char o_reify = anfd->reify; |
|
|
555 | |
441 | anfd->reify = 0; |
556 | anfd->reify = 0; |
442 | |
|
|
443 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
444 | anfd->events = events; |
557 | anfd->events = events; |
|
|
558 | |
|
|
559 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
560 | backend_modify (EV_A_ fd, o_events, events); |
|
|
561 | } |
445 | } |
562 | } |
446 | |
563 | |
447 | fdchangecnt = 0; |
564 | fdchangecnt = 0; |
448 | } |
565 | } |
449 | |
566 | |
450 | static void |
567 | void inline_size |
451 | fd_change (EV_P_ int fd) |
568 | fd_change (EV_P_ int fd, int flags) |
452 | { |
569 | { |
453 | if (anfds [fd].reify) |
570 | unsigned char reify = anfds [fd].reify; |
454 | return; |
|
|
455 | |
|
|
456 | anfds [fd].reify = 1; |
571 | anfds [fd].reify |= flags; |
457 | |
572 | |
|
|
573 | if (expect_true (!reify)) |
|
|
574 | { |
458 | ++fdchangecnt; |
575 | ++fdchangecnt; |
459 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
576 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
460 | fdchanges [fdchangecnt - 1] = fd; |
577 | fdchanges [fdchangecnt - 1] = fd; |
|
|
578 | } |
461 | } |
579 | } |
462 | |
580 | |
463 | static void |
581 | void inline_speed |
464 | fd_kill (EV_P_ int fd) |
582 | fd_kill (EV_P_ int fd) |
465 | { |
583 | { |
466 | struct ev_io *w; |
584 | ev_io *w; |
467 | |
585 | |
468 | while ((w = (struct ev_io *)anfds [fd].head)) |
586 | while ((w = (ev_io *)anfds [fd].head)) |
469 | { |
587 | { |
470 | ev_io_stop (EV_A_ w); |
588 | ev_io_stop (EV_A_ w); |
471 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
589 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
472 | } |
590 | } |
473 | } |
591 | } |
474 | |
592 | |
475 | static int |
593 | int inline_size |
476 | fd_valid (int fd) |
594 | fd_valid (int fd) |
477 | { |
595 | { |
478 | #ifdef _WIN32 |
596 | #ifdef _WIN32 |
479 | return _get_osfhandle (fd) != -1; |
597 | return _get_osfhandle (fd) != -1; |
480 | #else |
598 | #else |
481 | return fcntl (fd, F_GETFD) != -1; |
599 | return fcntl (fd, F_GETFD) != -1; |
482 | #endif |
600 | #endif |
483 | } |
601 | } |
484 | |
602 | |
485 | /* called on EBADF to verify fds */ |
603 | /* called on EBADF to verify fds */ |
486 | static void |
604 | static void noinline |
487 | fd_ebadf (EV_P) |
605 | fd_ebadf (EV_P) |
488 | { |
606 | { |
489 | int fd; |
607 | int fd; |
490 | |
608 | |
491 | for (fd = 0; fd < anfdmax; ++fd) |
609 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
493 | if (!fd_valid (fd) == -1 && errno == EBADF) |
611 | if (!fd_valid (fd) == -1 && errno == EBADF) |
494 | fd_kill (EV_A_ fd); |
612 | fd_kill (EV_A_ fd); |
495 | } |
613 | } |
496 | |
614 | |
497 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
615 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
498 | static void |
616 | static void noinline |
499 | fd_enomem (EV_P) |
617 | fd_enomem (EV_P) |
500 | { |
618 | { |
501 | int fd; |
619 | int fd; |
502 | |
620 | |
503 | for (fd = anfdmax; fd--; ) |
621 | for (fd = anfdmax; fd--; ) |
… | |
… | |
506 | fd_kill (EV_A_ fd); |
624 | fd_kill (EV_A_ fd); |
507 | return; |
625 | return; |
508 | } |
626 | } |
509 | } |
627 | } |
510 | |
628 | |
511 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
629 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
512 | static void |
630 | static void noinline |
513 | fd_rearm_all (EV_P) |
631 | fd_rearm_all (EV_P) |
514 | { |
632 | { |
515 | int fd; |
633 | int fd; |
516 | |
634 | |
517 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
518 | for (fd = 0; fd < anfdmax; ++fd) |
635 | for (fd = 0; fd < anfdmax; ++fd) |
519 | if (anfds [fd].events) |
636 | if (anfds [fd].events) |
520 | { |
637 | { |
521 | anfds [fd].events = 0; |
638 | anfds [fd].events = 0; |
522 | fd_change (EV_A_ fd); |
639 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
523 | } |
640 | } |
524 | } |
641 | } |
525 | |
642 | |
526 | /*****************************************************************************/ |
643 | /*****************************************************************************/ |
527 | |
644 | |
528 | static void |
645 | void inline_speed |
529 | upheap (WT *heap, int k) |
646 | upheap (WT *heap, int k) |
530 | { |
647 | { |
531 | WT w = heap [k]; |
648 | WT w = heap [k]; |
532 | |
649 | |
533 | while (k && heap [k >> 1]->at > w->at) |
650 | while (k) |
534 | { |
651 | { |
|
|
652 | int p = (k - 1) >> 1; |
|
|
653 | |
|
|
654 | if (heap [p]->at <= w->at) |
|
|
655 | break; |
|
|
656 | |
535 | heap [k] = heap [k >> 1]; |
657 | heap [k] = heap [p]; |
536 | ((W)heap [k])->active = k + 1; |
658 | ((W)heap [k])->active = k + 1; |
537 | k >>= 1; |
659 | k = p; |
538 | } |
660 | } |
539 | |
661 | |
540 | heap [k] = w; |
662 | heap [k] = w; |
541 | ((W)heap [k])->active = k + 1; |
663 | ((W)heap [k])->active = k + 1; |
542 | |
|
|
543 | } |
664 | } |
544 | |
665 | |
545 | static void |
666 | void inline_speed |
546 | downheap (WT *heap, int N, int k) |
667 | downheap (WT *heap, int N, int k) |
547 | { |
668 | { |
548 | WT w = heap [k]; |
669 | WT w = heap [k]; |
549 | |
670 | |
550 | while (k < (N >> 1)) |
671 | for (;;) |
551 | { |
672 | { |
552 | int j = k << 1; |
673 | int c = (k << 1) + 1; |
553 | |
674 | |
554 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
675 | if (c >= N) |
555 | ++j; |
|
|
556 | |
|
|
557 | if (w->at <= heap [j]->at) |
|
|
558 | break; |
676 | break; |
559 | |
677 | |
|
|
678 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
679 | ? 1 : 0; |
|
|
680 | |
|
|
681 | if (w->at <= heap [c]->at) |
|
|
682 | break; |
|
|
683 | |
560 | heap [k] = heap [j]; |
684 | heap [k] = heap [c]; |
561 | ((W)heap [k])->active = k + 1; |
685 | ((W)heap [k])->active = k + 1; |
|
|
686 | |
562 | k = j; |
687 | k = c; |
563 | } |
688 | } |
564 | |
689 | |
565 | heap [k] = w; |
690 | heap [k] = w; |
566 | ((W)heap [k])->active = k + 1; |
691 | ((W)heap [k])->active = k + 1; |
567 | } |
692 | } |
568 | |
693 | |
569 | inline void |
694 | void inline_size |
570 | adjustheap (WT *heap, int N, int k) |
695 | adjustheap (WT *heap, int N, int k) |
571 | { |
696 | { |
572 | upheap (heap, k); |
697 | upheap (heap, k); |
573 | downheap (heap, N, k); |
698 | downheap (heap, N, k); |
574 | } |
699 | } |
… | |
… | |
584 | static ANSIG *signals; |
709 | static ANSIG *signals; |
585 | static int signalmax; |
710 | static int signalmax; |
586 | |
711 | |
587 | static int sigpipe [2]; |
712 | static int sigpipe [2]; |
588 | static sig_atomic_t volatile gotsig; |
713 | static sig_atomic_t volatile gotsig; |
589 | static struct ev_io sigev; |
714 | static ev_io sigev; |
590 | |
715 | |
591 | static void |
716 | void inline_size |
592 | signals_init (ANSIG *base, int count) |
717 | signals_init (ANSIG *base, int count) |
593 | { |
718 | { |
594 | while (count--) |
719 | while (count--) |
595 | { |
720 | { |
596 | base->head = 0; |
721 | base->head = 0; |
… | |
… | |
616 | write (sigpipe [1], &signum, 1); |
741 | write (sigpipe [1], &signum, 1); |
617 | errno = old_errno; |
742 | errno = old_errno; |
618 | } |
743 | } |
619 | } |
744 | } |
620 | |
745 | |
621 | void |
746 | void noinline |
622 | ev_feed_signal_event (EV_P_ int signum) |
747 | ev_feed_signal_event (EV_P_ int signum) |
623 | { |
748 | { |
624 | WL w; |
749 | WL w; |
625 | |
750 | |
626 | #if EV_MULTIPLICITY |
751 | #if EV_MULTIPLICITY |
… | |
… | |
637 | for (w = signals [signum].head; w; w = w->next) |
762 | for (w = signals [signum].head; w; w = w->next) |
638 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
763 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
639 | } |
764 | } |
640 | |
765 | |
641 | static void |
766 | static void |
642 | sigcb (EV_P_ struct ev_io *iow, int revents) |
767 | sigcb (EV_P_ ev_io *iow, int revents) |
643 | { |
768 | { |
644 | int signum; |
769 | int signum; |
645 | |
770 | |
646 | read (sigpipe [0], &revents, 1); |
771 | read (sigpipe [0], &revents, 1); |
647 | gotsig = 0; |
772 | gotsig = 0; |
… | |
… | |
649 | for (signum = signalmax; signum--; ) |
774 | for (signum = signalmax; signum--; ) |
650 | if (signals [signum].gotsig) |
775 | if (signals [signum].gotsig) |
651 | ev_feed_signal_event (EV_A_ signum + 1); |
776 | ev_feed_signal_event (EV_A_ signum + 1); |
652 | } |
777 | } |
653 | |
778 | |
654 | inline void |
779 | void inline_speed |
655 | fd_intern (int fd) |
780 | fd_intern (int fd) |
656 | { |
781 | { |
657 | #ifdef _WIN32 |
782 | #ifdef _WIN32 |
658 | int arg = 1; |
783 | int arg = 1; |
659 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
784 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
661 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
786 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
662 | fcntl (fd, F_SETFL, O_NONBLOCK); |
787 | fcntl (fd, F_SETFL, O_NONBLOCK); |
663 | #endif |
788 | #endif |
664 | } |
789 | } |
665 | |
790 | |
666 | static void |
791 | static void noinline |
667 | siginit (EV_P) |
792 | siginit (EV_P) |
668 | { |
793 | { |
669 | fd_intern (sigpipe [0]); |
794 | fd_intern (sigpipe [0]); |
670 | fd_intern (sigpipe [1]); |
795 | fd_intern (sigpipe [1]); |
671 | |
796 | |
… | |
… | |
674 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
799 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
675 | } |
800 | } |
676 | |
801 | |
677 | /*****************************************************************************/ |
802 | /*****************************************************************************/ |
678 | |
803 | |
679 | static struct ev_child *childs [PID_HASHSIZE]; |
804 | static WL childs [EV_PID_HASHSIZE]; |
680 | |
805 | |
681 | #ifndef _WIN32 |
806 | #ifndef _WIN32 |
682 | |
807 | |
683 | static struct ev_signal childev; |
808 | static ev_signal childev; |
|
|
809 | |
|
|
810 | void inline_speed |
|
|
811 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
812 | { |
|
|
813 | ev_child *w; |
|
|
814 | |
|
|
815 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
816 | if (w->pid == pid || !w->pid) |
|
|
817 | { |
|
|
818 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
|
|
819 | w->rpid = pid; |
|
|
820 | w->rstatus = status; |
|
|
821 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
822 | } |
|
|
823 | } |
684 | |
824 | |
685 | #ifndef WCONTINUED |
825 | #ifndef WCONTINUED |
686 | # define WCONTINUED 0 |
826 | # define WCONTINUED 0 |
687 | #endif |
827 | #endif |
688 | |
828 | |
689 | static void |
829 | static void |
690 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
691 | { |
|
|
692 | struct ev_child *w; |
|
|
693 | |
|
|
694 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
695 | if (w->pid == pid || !w->pid) |
|
|
696 | { |
|
|
697 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
698 | w->rpid = pid; |
|
|
699 | w->rstatus = status; |
|
|
700 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
701 | } |
|
|
702 | } |
|
|
703 | |
|
|
704 | static void |
|
|
705 | childcb (EV_P_ struct ev_signal *sw, int revents) |
830 | childcb (EV_P_ ev_signal *sw, int revents) |
706 | { |
831 | { |
707 | int pid, status; |
832 | int pid, status; |
708 | |
833 | |
|
|
834 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
709 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
835 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
710 | { |
836 | if (!WCONTINUED |
|
|
837 | || errno != EINVAL |
|
|
838 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
839 | return; |
|
|
840 | |
711 | /* make sure we are called again until all childs have been reaped */ |
841 | /* make sure we are called again until all childs have been reaped */ |
|
|
842 | /* we need to do it this way so that the callback gets called before we continue */ |
712 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
843 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
713 | |
844 | |
714 | child_reap (EV_A_ sw, pid, pid, status); |
845 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
846 | if (EV_PID_HASHSIZE > 1) |
715 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
847 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
716 | } |
|
|
717 | } |
848 | } |
718 | |
849 | |
719 | #endif |
850 | #endif |
720 | |
851 | |
721 | /*****************************************************************************/ |
852 | /*****************************************************************************/ |
… | |
… | |
747 | { |
878 | { |
748 | return EV_VERSION_MINOR; |
879 | return EV_VERSION_MINOR; |
749 | } |
880 | } |
750 | |
881 | |
751 | /* return true if we are running with elevated privileges and should ignore env variables */ |
882 | /* return true if we are running with elevated privileges and should ignore env variables */ |
752 | static int |
883 | int inline_size |
753 | enable_secure (void) |
884 | enable_secure (void) |
754 | { |
885 | { |
755 | #ifdef _WIN32 |
886 | #ifdef _WIN32 |
756 | return 0; |
887 | return 0; |
757 | #else |
888 | #else |
… | |
… | |
759 | || getgid () != getegid (); |
890 | || getgid () != getegid (); |
760 | #endif |
891 | #endif |
761 | } |
892 | } |
762 | |
893 | |
763 | unsigned int |
894 | unsigned int |
764 | ev_method (EV_P) |
895 | ev_supported_backends (void) |
765 | { |
896 | { |
766 | return method; |
897 | unsigned int flags = 0; |
767 | } |
|
|
768 | |
898 | |
769 | static void |
899 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
900 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
901 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
902 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
903 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
904 | |
|
|
905 | return flags; |
|
|
906 | } |
|
|
907 | |
|
|
908 | unsigned int |
|
|
909 | ev_recommended_backends (void) |
|
|
910 | { |
|
|
911 | unsigned int flags = ev_supported_backends (); |
|
|
912 | |
|
|
913 | #ifndef __NetBSD__ |
|
|
914 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
915 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
916 | flags &= ~EVBACKEND_KQUEUE; |
|
|
917 | #endif |
|
|
918 | #ifdef __APPLE__ |
|
|
919 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
920 | flags &= ~EVBACKEND_POLL; |
|
|
921 | #endif |
|
|
922 | |
|
|
923 | return flags; |
|
|
924 | } |
|
|
925 | |
|
|
926 | unsigned int |
|
|
927 | ev_embeddable_backends (void) |
|
|
928 | { |
|
|
929 | return EVBACKEND_EPOLL |
|
|
930 | | EVBACKEND_KQUEUE |
|
|
931 | | EVBACKEND_PORT; |
|
|
932 | } |
|
|
933 | |
|
|
934 | unsigned int |
|
|
935 | ev_backend (EV_P) |
|
|
936 | { |
|
|
937 | return backend; |
|
|
938 | } |
|
|
939 | |
|
|
940 | unsigned int |
|
|
941 | ev_loop_count (EV_P) |
|
|
942 | { |
|
|
943 | return loop_count; |
|
|
944 | } |
|
|
945 | |
|
|
946 | static void noinline |
770 | loop_init (EV_P_ unsigned int flags) |
947 | loop_init (EV_P_ unsigned int flags) |
771 | { |
948 | { |
772 | if (!method) |
949 | if (!backend) |
773 | { |
950 | { |
774 | #if EV_USE_MONOTONIC |
951 | #if EV_USE_MONOTONIC |
775 | { |
952 | { |
776 | struct timespec ts; |
953 | struct timespec ts; |
777 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
954 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
… | |
… | |
782 | ev_rt_now = ev_time (); |
959 | ev_rt_now = ev_time (); |
783 | mn_now = get_clock (); |
960 | mn_now = get_clock (); |
784 | now_floor = mn_now; |
961 | now_floor = mn_now; |
785 | rtmn_diff = ev_rt_now - mn_now; |
962 | rtmn_diff = ev_rt_now - mn_now; |
786 | |
963 | |
787 | if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
964 | /* pid check not overridable via env */ |
|
|
965 | #ifndef _WIN32 |
|
|
966 | if (flags & EVFLAG_FORKCHECK) |
|
|
967 | curpid = getpid (); |
|
|
968 | #endif |
|
|
969 | |
|
|
970 | if (!(flags & EVFLAG_NOENV) |
|
|
971 | && !enable_secure () |
|
|
972 | && getenv ("LIBEV_FLAGS")) |
788 | flags = atoi (getenv ("LIBEV_FLAGS")); |
973 | flags = atoi (getenv ("LIBEV_FLAGS")); |
789 | |
974 | |
790 | if (!(flags & 0x0000ffff)) |
975 | if (!(flags & 0x0000ffffUL)) |
791 | flags |= 0x0000ffff; |
976 | flags |= ev_recommended_backends (); |
792 | |
977 | |
793 | method = 0; |
978 | backend = 0; |
|
|
979 | backend_fd = -1; |
|
|
980 | #if EV_USE_INOTIFY |
|
|
981 | fs_fd = -2; |
|
|
982 | #endif |
|
|
983 | |
794 | #if EV_USE_PORT |
984 | #if EV_USE_PORT |
795 | if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); |
985 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
796 | #endif |
986 | #endif |
797 | #if EV_USE_KQUEUE |
987 | #if EV_USE_KQUEUE |
798 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
988 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
799 | #endif |
989 | #endif |
800 | #if EV_USE_EPOLL |
990 | #if EV_USE_EPOLL |
801 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
991 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
802 | #endif |
992 | #endif |
803 | #if EV_USE_POLL |
993 | #if EV_USE_POLL |
804 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
994 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
805 | #endif |
995 | #endif |
806 | #if EV_USE_SELECT |
996 | #if EV_USE_SELECT |
807 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
997 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
808 | #endif |
998 | #endif |
809 | |
999 | |
810 | ev_init (&sigev, sigcb); |
1000 | ev_init (&sigev, sigcb); |
811 | ev_set_priority (&sigev, EV_MAXPRI); |
1001 | ev_set_priority (&sigev, EV_MAXPRI); |
812 | } |
1002 | } |
813 | } |
1003 | } |
814 | |
1004 | |
815 | void |
1005 | static void noinline |
816 | loop_destroy (EV_P) |
1006 | loop_destroy (EV_P) |
817 | { |
1007 | { |
818 | int i; |
1008 | int i; |
819 | |
1009 | |
|
|
1010 | #if EV_USE_INOTIFY |
|
|
1011 | if (fs_fd >= 0) |
|
|
1012 | close (fs_fd); |
|
|
1013 | #endif |
|
|
1014 | |
|
|
1015 | if (backend_fd >= 0) |
|
|
1016 | close (backend_fd); |
|
|
1017 | |
820 | #if EV_USE_PORT |
1018 | #if EV_USE_PORT |
821 | if (method == EVMETHOD_PORT ) port_destroy (EV_A); |
1019 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
822 | #endif |
1020 | #endif |
823 | #if EV_USE_KQUEUE |
1021 | #if EV_USE_KQUEUE |
824 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1022 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
825 | #endif |
1023 | #endif |
826 | #if EV_USE_EPOLL |
1024 | #if EV_USE_EPOLL |
827 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1025 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
828 | #endif |
1026 | #endif |
829 | #if EV_USE_POLL |
1027 | #if EV_USE_POLL |
830 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1028 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
831 | #endif |
1029 | #endif |
832 | #if EV_USE_SELECT |
1030 | #if EV_USE_SELECT |
833 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1031 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
834 | #endif |
1032 | #endif |
835 | |
1033 | |
836 | for (i = NUMPRI; i--; ) |
1034 | for (i = NUMPRI; i--; ) |
|
|
1035 | { |
837 | array_free (pending, [i]); |
1036 | array_free (pending, [i]); |
|
|
1037 | #if EV_IDLE_ENABLE |
|
|
1038 | array_free (idle, [i]); |
|
|
1039 | #endif |
|
|
1040 | } |
838 | |
1041 | |
839 | /* have to use the microsoft-never-gets-it-right macro */ |
1042 | /* have to use the microsoft-never-gets-it-right macro */ |
840 | array_free (fdchange, EMPTY0); |
1043 | array_free (fdchange, EMPTY); |
841 | array_free (timer, EMPTY0); |
1044 | array_free (timer, EMPTY); |
842 | #if EV_PERIODICS |
1045 | #if EV_PERIODIC_ENABLE |
843 | array_free (periodic, EMPTY0); |
1046 | array_free (periodic, EMPTY); |
844 | #endif |
1047 | #endif |
845 | array_free (idle, EMPTY0); |
|
|
846 | array_free (prepare, EMPTY0); |
1048 | array_free (prepare, EMPTY); |
847 | array_free (check, EMPTY0); |
1049 | array_free (check, EMPTY); |
848 | |
1050 | |
849 | method = 0; |
1051 | backend = 0; |
850 | } |
1052 | } |
851 | |
1053 | |
852 | static void |
1054 | void inline_size infy_fork (EV_P); |
|
|
1055 | |
|
|
1056 | void inline_size |
853 | loop_fork (EV_P) |
1057 | loop_fork (EV_P) |
854 | { |
1058 | { |
855 | #if EV_USE_PORT |
1059 | #if EV_USE_PORT |
856 | if (method == EVMETHOD_PORT ) port_fork (EV_A); |
1060 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
857 | #endif |
1061 | #endif |
858 | #if EV_USE_KQUEUE |
1062 | #if EV_USE_KQUEUE |
859 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1063 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
860 | #endif |
1064 | #endif |
861 | #if EV_USE_EPOLL |
1065 | #if EV_USE_EPOLL |
862 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1066 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1067 | #endif |
|
|
1068 | #if EV_USE_INOTIFY |
|
|
1069 | infy_fork (EV_A); |
863 | #endif |
1070 | #endif |
864 | |
1071 | |
865 | if (ev_is_active (&sigev)) |
1072 | if (ev_is_active (&sigev)) |
866 | { |
1073 | { |
867 | /* default loop */ |
1074 | /* default loop */ |
… | |
… | |
888 | |
1095 | |
889 | memset (loop, 0, sizeof (struct ev_loop)); |
1096 | memset (loop, 0, sizeof (struct ev_loop)); |
890 | |
1097 | |
891 | loop_init (EV_A_ flags); |
1098 | loop_init (EV_A_ flags); |
892 | |
1099 | |
893 | if (ev_method (EV_A)) |
1100 | if (ev_backend (EV_A)) |
894 | return loop; |
1101 | return loop; |
895 | |
1102 | |
896 | return 0; |
1103 | return 0; |
897 | } |
1104 | } |
898 | |
1105 | |
… | |
… | |
911 | |
1118 | |
912 | #endif |
1119 | #endif |
913 | |
1120 | |
914 | #if EV_MULTIPLICITY |
1121 | #if EV_MULTIPLICITY |
915 | struct ev_loop * |
1122 | struct ev_loop * |
916 | ev_default_loop_ (unsigned int flags) |
1123 | ev_default_loop_init (unsigned int flags) |
917 | #else |
1124 | #else |
918 | int |
1125 | int |
919 | ev_default_loop (unsigned int flags) |
1126 | ev_default_loop (unsigned int flags) |
920 | #endif |
1127 | #endif |
921 | { |
1128 | { |
… | |
… | |
931 | ev_default_loop_ptr = 1; |
1138 | ev_default_loop_ptr = 1; |
932 | #endif |
1139 | #endif |
933 | |
1140 | |
934 | loop_init (EV_A_ flags); |
1141 | loop_init (EV_A_ flags); |
935 | |
1142 | |
936 | if (ev_method (EV_A)) |
1143 | if (ev_backend (EV_A)) |
937 | { |
1144 | { |
938 | siginit (EV_A); |
1145 | siginit (EV_A); |
939 | |
1146 | |
940 | #ifndef _WIN32 |
1147 | #ifndef _WIN32 |
941 | ev_signal_init (&childev, childcb, SIGCHLD); |
1148 | ev_signal_init (&childev, childcb, SIGCHLD); |
… | |
… | |
977 | { |
1184 | { |
978 | #if EV_MULTIPLICITY |
1185 | #if EV_MULTIPLICITY |
979 | struct ev_loop *loop = ev_default_loop_ptr; |
1186 | struct ev_loop *loop = ev_default_loop_ptr; |
980 | #endif |
1187 | #endif |
981 | |
1188 | |
982 | if (method) |
1189 | if (backend) |
983 | postfork = 1; |
1190 | postfork = 1; |
984 | } |
1191 | } |
985 | |
1192 | |
986 | /*****************************************************************************/ |
1193 | /*****************************************************************************/ |
987 | |
1194 | |
988 | static int |
1195 | void |
989 | any_pending (EV_P) |
1196 | ev_invoke (EV_P_ void *w, int revents) |
990 | { |
1197 | { |
991 | int pri; |
1198 | EV_CB_INVOKE ((W)w, revents); |
992 | |
|
|
993 | for (pri = NUMPRI; pri--; ) |
|
|
994 | if (pendingcnt [pri]) |
|
|
995 | return 1; |
|
|
996 | |
|
|
997 | return 0; |
|
|
998 | } |
1199 | } |
999 | |
1200 | |
1000 | static void |
1201 | void inline_speed |
1001 | call_pending (EV_P) |
1202 | call_pending (EV_P) |
1002 | { |
1203 | { |
1003 | int pri; |
1204 | int pri; |
1004 | |
1205 | |
1005 | for (pri = NUMPRI; pri--; ) |
1206 | for (pri = NUMPRI; pri--; ) |
1006 | while (pendingcnt [pri]) |
1207 | while (pendingcnt [pri]) |
1007 | { |
1208 | { |
1008 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1209 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1009 | |
1210 | |
1010 | if (p->w) |
1211 | if (expect_true (p->w)) |
1011 | { |
1212 | { |
|
|
1213 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1214 | |
1012 | p->w->pending = 0; |
1215 | p->w->pending = 0; |
1013 | EV_CB_INVOKE (p->w, p->events); |
1216 | EV_CB_INVOKE (p->w, p->events); |
1014 | } |
1217 | } |
1015 | } |
1218 | } |
1016 | } |
1219 | } |
1017 | |
1220 | |
1018 | static void |
1221 | void inline_size |
1019 | timers_reify (EV_P) |
1222 | timers_reify (EV_P) |
1020 | { |
1223 | { |
1021 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1224 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1022 | { |
1225 | { |
1023 | struct ev_timer *w = timers [0]; |
1226 | ev_timer *w = (ev_timer *)timers [0]; |
1024 | |
1227 | |
1025 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1228 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1026 | |
1229 | |
1027 | /* first reschedule or stop timer */ |
1230 | /* first reschedule or stop timer */ |
1028 | if (w->repeat) |
1231 | if (w->repeat) |
1029 | { |
1232 | { |
1030 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1233 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1031 | |
1234 | |
1032 | ((WT)w)->at += w->repeat; |
1235 | ((WT)w)->at += w->repeat; |
1033 | if (((WT)w)->at < mn_now) |
1236 | if (((WT)w)->at < mn_now) |
1034 | ((WT)w)->at = mn_now; |
1237 | ((WT)w)->at = mn_now; |
1035 | |
1238 | |
1036 | downheap ((WT *)timers, timercnt, 0); |
1239 | downheap (timers, timercnt, 0); |
1037 | } |
1240 | } |
1038 | else |
1241 | else |
1039 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1242 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1040 | |
1243 | |
1041 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1244 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1042 | } |
1245 | } |
1043 | } |
1246 | } |
1044 | |
1247 | |
1045 | #if EV_PERIODICS |
1248 | #if EV_PERIODIC_ENABLE |
1046 | static void |
1249 | void inline_size |
1047 | periodics_reify (EV_P) |
1250 | periodics_reify (EV_P) |
1048 | { |
1251 | { |
1049 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1252 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1050 | { |
1253 | { |
1051 | struct ev_periodic *w = periodics [0]; |
1254 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1052 | |
1255 | |
1053 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1256 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1054 | |
1257 | |
1055 | /* first reschedule or stop timer */ |
1258 | /* first reschedule or stop timer */ |
1056 | if (w->reschedule_cb) |
1259 | if (w->reschedule_cb) |
1057 | { |
1260 | { |
1058 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1261 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1059 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1262 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1060 | downheap ((WT *)periodics, periodiccnt, 0); |
1263 | downheap (periodics, periodiccnt, 0); |
1061 | } |
1264 | } |
1062 | else if (w->interval) |
1265 | else if (w->interval) |
1063 | { |
1266 | { |
1064 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1267 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1268 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1065 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1269 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1066 | downheap ((WT *)periodics, periodiccnt, 0); |
1270 | downheap (periodics, periodiccnt, 0); |
1067 | } |
1271 | } |
1068 | else |
1272 | else |
1069 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1273 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1070 | |
1274 | |
1071 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1275 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1072 | } |
1276 | } |
1073 | } |
1277 | } |
1074 | |
1278 | |
1075 | static void |
1279 | static void noinline |
1076 | periodics_reschedule (EV_P) |
1280 | periodics_reschedule (EV_P) |
1077 | { |
1281 | { |
1078 | int i; |
1282 | int i; |
1079 | |
1283 | |
1080 | /* adjust periodics after time jump */ |
1284 | /* adjust periodics after time jump */ |
1081 | for (i = 0; i < periodiccnt; ++i) |
1285 | for (i = 0; i < periodiccnt; ++i) |
1082 | { |
1286 | { |
1083 | struct ev_periodic *w = periodics [i]; |
1287 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1084 | |
1288 | |
1085 | if (w->reschedule_cb) |
1289 | if (w->reschedule_cb) |
1086 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1290 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1087 | else if (w->interval) |
1291 | else if (w->interval) |
1088 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1292 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1089 | } |
1293 | } |
1090 | |
1294 | |
1091 | /* now rebuild the heap */ |
1295 | /* now rebuild the heap */ |
1092 | for (i = periodiccnt >> 1; i--; ) |
1296 | for (i = periodiccnt >> 1; i--; ) |
1093 | downheap ((WT *)periodics, periodiccnt, i); |
1297 | downheap (periodics, periodiccnt, i); |
1094 | } |
1298 | } |
1095 | #endif |
1299 | #endif |
1096 | |
1300 | |
1097 | inline int |
1301 | #if EV_IDLE_ENABLE |
1098 | time_update_monotonic (EV_P) |
1302 | void inline_size |
|
|
1303 | idle_reify (EV_P) |
1099 | { |
1304 | { |
|
|
1305 | if (expect_false (idleall)) |
|
|
1306 | { |
|
|
1307 | int pri; |
|
|
1308 | |
|
|
1309 | for (pri = NUMPRI; pri--; ) |
|
|
1310 | { |
|
|
1311 | if (pendingcnt [pri]) |
|
|
1312 | break; |
|
|
1313 | |
|
|
1314 | if (idlecnt [pri]) |
|
|
1315 | { |
|
|
1316 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1317 | break; |
|
|
1318 | } |
|
|
1319 | } |
|
|
1320 | } |
|
|
1321 | } |
|
|
1322 | #endif |
|
|
1323 | |
|
|
1324 | void inline_speed |
|
|
1325 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1326 | { |
|
|
1327 | int i; |
|
|
1328 | |
|
|
1329 | #if EV_USE_MONOTONIC |
|
|
1330 | if (expect_true (have_monotonic)) |
|
|
1331 | { |
|
|
1332 | ev_tstamp odiff = rtmn_diff; |
|
|
1333 | |
1100 | mn_now = get_clock (); |
1334 | mn_now = get_clock (); |
1101 | |
1335 | |
|
|
1336 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1337 | /* interpolate in the meantime */ |
1102 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1338 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1103 | { |
1339 | { |
1104 | ev_rt_now = rtmn_diff + mn_now; |
1340 | ev_rt_now = rtmn_diff + mn_now; |
1105 | return 0; |
1341 | return; |
1106 | } |
1342 | } |
1107 | else |
1343 | |
1108 | { |
|
|
1109 | now_floor = mn_now; |
1344 | now_floor = mn_now; |
1110 | ev_rt_now = ev_time (); |
1345 | ev_rt_now = ev_time (); |
1111 | return 1; |
|
|
1112 | } |
|
|
1113 | } |
|
|
1114 | |
1346 | |
1115 | static void |
1347 | /* loop a few times, before making important decisions. |
1116 | time_update (EV_P) |
1348 | * on the choice of "4": one iteration isn't enough, |
1117 | { |
1349 | * in case we get preempted during the calls to |
1118 | int i; |
1350 | * ev_time and get_clock. a second call is almost guaranteed |
1119 | |
1351 | * to succeed in that case, though. and looping a few more times |
1120 | #if EV_USE_MONOTONIC |
1352 | * doesn't hurt either as we only do this on time-jumps or |
1121 | if (expect_true (have_monotonic)) |
1353 | * in the unlikely event of having been preempted here. |
1122 | { |
1354 | */ |
1123 | if (time_update_monotonic (EV_A)) |
1355 | for (i = 4; --i; ) |
1124 | { |
1356 | { |
1125 | ev_tstamp odiff = rtmn_diff; |
|
|
1126 | |
|
|
1127 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1128 | { |
|
|
1129 | rtmn_diff = ev_rt_now - mn_now; |
1357 | rtmn_diff = ev_rt_now - mn_now; |
1130 | |
1358 | |
1131 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1359 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1132 | return; /* all is well */ |
1360 | return; /* all is well */ |
1133 | |
1361 | |
1134 | ev_rt_now = ev_time (); |
1362 | ev_rt_now = ev_time (); |
1135 | mn_now = get_clock (); |
1363 | mn_now = get_clock (); |
1136 | now_floor = mn_now; |
1364 | now_floor = mn_now; |
1137 | } |
1365 | } |
1138 | |
1366 | |
1139 | # if EV_PERIODICS |
1367 | # if EV_PERIODIC_ENABLE |
|
|
1368 | periodics_reschedule (EV_A); |
|
|
1369 | # endif |
|
|
1370 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1371 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1372 | } |
|
|
1373 | else |
|
|
1374 | #endif |
|
|
1375 | { |
|
|
1376 | ev_rt_now = ev_time (); |
|
|
1377 | |
|
|
1378 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1379 | { |
|
|
1380 | #if EV_PERIODIC_ENABLE |
1140 | periodics_reschedule (EV_A); |
1381 | periodics_reschedule (EV_A); |
1141 | # endif |
1382 | #endif |
1142 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1143 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1144 | } |
|
|
1145 | } |
|
|
1146 | else |
|
|
1147 | #endif |
|
|
1148 | { |
|
|
1149 | ev_rt_now = ev_time (); |
|
|
1150 | |
|
|
1151 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1152 | { |
|
|
1153 | #if EV_PERIODICS |
|
|
1154 | periodics_reschedule (EV_A); |
|
|
1155 | #endif |
|
|
1156 | |
|
|
1157 | /* adjust timers. this is easy, as the offset is the same for all */ |
1383 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1158 | for (i = 0; i < timercnt; ++i) |
1384 | for (i = 0; i < timercnt; ++i) |
1159 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1385 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1160 | } |
1386 | } |
1161 | |
1387 | |
1162 | mn_now = ev_rt_now; |
1388 | mn_now = ev_rt_now; |
… | |
… | |
1178 | static int loop_done; |
1404 | static int loop_done; |
1179 | |
1405 | |
1180 | void |
1406 | void |
1181 | ev_loop (EV_P_ int flags) |
1407 | ev_loop (EV_P_ int flags) |
1182 | { |
1408 | { |
1183 | double block; |
|
|
1184 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1409 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1410 | ? EVUNLOOP_ONE |
|
|
1411 | : EVUNLOOP_CANCEL; |
1185 | |
1412 | |
1186 | while (activecnt) |
1413 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1414 | |
|
|
1415 | do |
1187 | { |
1416 | { |
|
|
1417 | #ifndef _WIN32 |
|
|
1418 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1419 | if (expect_false (getpid () != curpid)) |
|
|
1420 | { |
|
|
1421 | curpid = getpid (); |
|
|
1422 | postfork = 1; |
|
|
1423 | } |
|
|
1424 | #endif |
|
|
1425 | |
|
|
1426 | #if EV_FORK_ENABLE |
|
|
1427 | /* we might have forked, so queue fork handlers */ |
|
|
1428 | if (expect_false (postfork)) |
|
|
1429 | if (forkcnt) |
|
|
1430 | { |
|
|
1431 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1432 | call_pending (EV_A); |
|
|
1433 | } |
|
|
1434 | #endif |
|
|
1435 | |
1188 | /* queue check watchers (and execute them) */ |
1436 | /* queue prepare watchers (and execute them) */ |
1189 | if (expect_false (preparecnt)) |
1437 | if (expect_false (preparecnt)) |
1190 | { |
1438 | { |
1191 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1439 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1192 | call_pending (EV_A); |
1440 | call_pending (EV_A); |
1193 | } |
1441 | } |
1194 | |
1442 | |
|
|
1443 | if (expect_false (!activecnt)) |
|
|
1444 | break; |
|
|
1445 | |
1195 | /* we might have forked, so reify kernel state if necessary */ |
1446 | /* we might have forked, so reify kernel state if necessary */ |
1196 | if (expect_false (postfork)) |
1447 | if (expect_false (postfork)) |
1197 | loop_fork (EV_A); |
1448 | loop_fork (EV_A); |
1198 | |
1449 | |
1199 | /* update fd-related kernel structures */ |
1450 | /* update fd-related kernel structures */ |
1200 | fd_reify (EV_A); |
1451 | fd_reify (EV_A); |
1201 | |
1452 | |
1202 | /* calculate blocking time */ |
1453 | /* calculate blocking time */ |
|
|
1454 | { |
|
|
1455 | ev_tstamp block; |
1203 | |
1456 | |
1204 | /* we only need this for !monotonic clock or timers, but as we basically |
1457 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1205 | always have timers, we just calculate it always */ |
1458 | block = 0.; /* do not block at all */ |
1206 | #if EV_USE_MONOTONIC |
|
|
1207 | if (expect_true (have_monotonic)) |
|
|
1208 | time_update_monotonic (EV_A); |
|
|
1209 | else |
1459 | else |
1210 | #endif |
|
|
1211 | { |
1460 | { |
1212 | ev_rt_now = ev_time (); |
1461 | /* update time to cancel out callback processing overhead */ |
1213 | mn_now = ev_rt_now; |
1462 | time_update (EV_A_ 1e100); |
1214 | } |
|
|
1215 | |
1463 | |
1216 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1217 | block = 0.; |
|
|
1218 | else |
|
|
1219 | { |
|
|
1220 | block = MAX_BLOCKTIME; |
1464 | block = MAX_BLOCKTIME; |
1221 | |
1465 | |
1222 | if (timercnt) |
1466 | if (timercnt) |
1223 | { |
1467 | { |
1224 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1468 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1225 | if (block > to) block = to; |
1469 | if (block > to) block = to; |
1226 | } |
1470 | } |
1227 | |
1471 | |
1228 | #if EV_PERIODICS |
1472 | #if EV_PERIODIC_ENABLE |
1229 | if (periodiccnt) |
1473 | if (periodiccnt) |
1230 | { |
1474 | { |
1231 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1475 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1232 | if (block > to) block = to; |
1476 | if (block > to) block = to; |
1233 | } |
1477 | } |
1234 | #endif |
1478 | #endif |
1235 | |
1479 | |
1236 | if (block < 0.) block = 0.; |
1480 | if (expect_false (block < 0.)) block = 0.; |
1237 | } |
1481 | } |
1238 | |
1482 | |
|
|
1483 | ++loop_count; |
1239 | method_poll (EV_A_ block); |
1484 | backend_poll (EV_A_ block); |
1240 | |
1485 | |
1241 | /* update ev_rt_now, do magic */ |
1486 | /* update ev_rt_now, do magic */ |
1242 | time_update (EV_A); |
1487 | time_update (EV_A_ block); |
|
|
1488 | } |
1243 | |
1489 | |
1244 | /* queue pending timers and reschedule them */ |
1490 | /* queue pending timers and reschedule them */ |
1245 | timers_reify (EV_A); /* relative timers called last */ |
1491 | timers_reify (EV_A); /* relative timers called last */ |
1246 | #if EV_PERIODICS |
1492 | #if EV_PERIODIC_ENABLE |
1247 | periodics_reify (EV_A); /* absolute timers called first */ |
1493 | periodics_reify (EV_A); /* absolute timers called first */ |
1248 | #endif |
1494 | #endif |
1249 | |
1495 | |
|
|
1496 | #if EV_IDLE_ENABLE |
1250 | /* queue idle watchers unless io or timers are pending */ |
1497 | /* queue idle watchers unless other events are pending */ |
1251 | if (idlecnt && !any_pending (EV_A)) |
1498 | idle_reify (EV_A); |
1252 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1499 | #endif |
1253 | |
1500 | |
1254 | /* queue check watchers, to be executed first */ |
1501 | /* queue check watchers, to be executed first */ |
1255 | if (checkcnt) |
1502 | if (expect_false (checkcnt)) |
1256 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1503 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1257 | |
1504 | |
1258 | call_pending (EV_A); |
1505 | call_pending (EV_A); |
1259 | |
1506 | |
1260 | if (loop_done) |
|
|
1261 | break; |
|
|
1262 | } |
1507 | } |
|
|
1508 | while (expect_true (activecnt && !loop_done)); |
1263 | |
1509 | |
1264 | if (loop_done != 2) |
1510 | if (loop_done == EVUNLOOP_ONE) |
1265 | loop_done = 0; |
1511 | loop_done = EVUNLOOP_CANCEL; |
1266 | } |
1512 | } |
1267 | |
1513 | |
1268 | void |
1514 | void |
1269 | ev_unloop (EV_P_ int how) |
1515 | ev_unloop (EV_P_ int how) |
1270 | { |
1516 | { |
1271 | loop_done = how; |
1517 | loop_done = how; |
1272 | } |
1518 | } |
1273 | |
1519 | |
1274 | /*****************************************************************************/ |
1520 | /*****************************************************************************/ |
1275 | |
1521 | |
1276 | inline void |
1522 | void inline_size |
1277 | wlist_add (WL *head, WL elem) |
1523 | wlist_add (WL *head, WL elem) |
1278 | { |
1524 | { |
1279 | elem->next = *head; |
1525 | elem->next = *head; |
1280 | *head = elem; |
1526 | *head = elem; |
1281 | } |
1527 | } |
1282 | |
1528 | |
1283 | inline void |
1529 | void inline_size |
1284 | wlist_del (WL *head, WL elem) |
1530 | wlist_del (WL *head, WL elem) |
1285 | { |
1531 | { |
1286 | while (*head) |
1532 | while (*head) |
1287 | { |
1533 | { |
1288 | if (*head == elem) |
1534 | if (*head == elem) |
… | |
… | |
1293 | |
1539 | |
1294 | head = &(*head)->next; |
1540 | head = &(*head)->next; |
1295 | } |
1541 | } |
1296 | } |
1542 | } |
1297 | |
1543 | |
1298 | inline void |
1544 | void inline_speed |
1299 | ev_clear_pending (EV_P_ W w) |
1545 | clear_pending (EV_P_ W w) |
1300 | { |
1546 | { |
1301 | if (w->pending) |
1547 | if (w->pending) |
1302 | { |
1548 | { |
1303 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1549 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1304 | w->pending = 0; |
1550 | w->pending = 0; |
1305 | } |
1551 | } |
1306 | } |
1552 | } |
1307 | |
1553 | |
1308 | inline void |
1554 | int |
|
|
1555 | ev_clear_pending (EV_P_ void *w) |
|
|
1556 | { |
|
|
1557 | W w_ = (W)w; |
|
|
1558 | int pending = w_->pending; |
|
|
1559 | |
|
|
1560 | if (expect_true (pending)) |
|
|
1561 | { |
|
|
1562 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1563 | w_->pending = 0; |
|
|
1564 | p->w = 0; |
|
|
1565 | return p->events; |
|
|
1566 | } |
|
|
1567 | else |
|
|
1568 | return 0; |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | void inline_size |
|
|
1572 | pri_adjust (EV_P_ W w) |
|
|
1573 | { |
|
|
1574 | int pri = w->priority; |
|
|
1575 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1576 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1577 | w->priority = pri; |
|
|
1578 | } |
|
|
1579 | |
|
|
1580 | void inline_speed |
1309 | ev_start (EV_P_ W w, int active) |
1581 | ev_start (EV_P_ W w, int active) |
1310 | { |
1582 | { |
1311 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1583 | pri_adjust (EV_A_ w); |
1312 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1313 | |
|
|
1314 | w->active = active; |
1584 | w->active = active; |
1315 | ev_ref (EV_A); |
1585 | ev_ref (EV_A); |
1316 | } |
1586 | } |
1317 | |
1587 | |
1318 | inline void |
1588 | void inline_size |
1319 | ev_stop (EV_P_ W w) |
1589 | ev_stop (EV_P_ W w) |
1320 | { |
1590 | { |
1321 | ev_unref (EV_A); |
1591 | ev_unref (EV_A); |
1322 | w->active = 0; |
1592 | w->active = 0; |
1323 | } |
1593 | } |
1324 | |
1594 | |
1325 | /*****************************************************************************/ |
1595 | /*****************************************************************************/ |
1326 | |
1596 | |
1327 | void |
1597 | void noinline |
1328 | ev_io_start (EV_P_ struct ev_io *w) |
1598 | ev_io_start (EV_P_ ev_io *w) |
1329 | { |
1599 | { |
1330 | int fd = w->fd; |
1600 | int fd = w->fd; |
1331 | |
1601 | |
1332 | if (ev_is_active (w)) |
1602 | if (expect_false (ev_is_active (w))) |
1333 | return; |
1603 | return; |
1334 | |
1604 | |
1335 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1605 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1336 | |
1606 | |
1337 | ev_start (EV_A_ (W)w, 1); |
1607 | ev_start (EV_A_ (W)w, 1); |
1338 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1608 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1339 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1609 | wlist_add (&anfds[fd].head, (WL)w); |
1340 | |
1610 | |
1341 | fd_change (EV_A_ fd); |
1611 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1612 | w->events &= ~EV_IOFDSET; |
1342 | } |
1613 | } |
1343 | |
1614 | |
1344 | void |
1615 | void noinline |
1345 | ev_io_stop (EV_P_ struct ev_io *w) |
1616 | ev_io_stop (EV_P_ ev_io *w) |
1346 | { |
1617 | { |
1347 | ev_clear_pending (EV_A_ (W)w); |
1618 | clear_pending (EV_A_ (W)w); |
1348 | if (!ev_is_active (w)) |
1619 | if (expect_false (!ev_is_active (w))) |
1349 | return; |
1620 | return; |
1350 | |
1621 | |
1351 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1622 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1352 | |
1623 | |
1353 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1624 | wlist_del (&anfds[w->fd].head, (WL)w); |
1354 | ev_stop (EV_A_ (W)w); |
1625 | ev_stop (EV_A_ (W)w); |
1355 | |
1626 | |
1356 | fd_change (EV_A_ w->fd); |
1627 | fd_change (EV_A_ w->fd, 1); |
1357 | } |
1628 | } |
1358 | |
1629 | |
1359 | void |
1630 | void noinline |
1360 | ev_timer_start (EV_P_ struct ev_timer *w) |
1631 | ev_timer_start (EV_P_ ev_timer *w) |
1361 | { |
1632 | { |
1362 | if (ev_is_active (w)) |
1633 | if (expect_false (ev_is_active (w))) |
1363 | return; |
1634 | return; |
1364 | |
1635 | |
1365 | ((WT)w)->at += mn_now; |
1636 | ((WT)w)->at += mn_now; |
1366 | |
1637 | |
1367 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1638 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1368 | |
1639 | |
1369 | ev_start (EV_A_ (W)w, ++timercnt); |
1640 | ev_start (EV_A_ (W)w, ++timercnt); |
1370 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1641 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1371 | timers [timercnt - 1] = w; |
1642 | timers [timercnt - 1] = (WT)w; |
1372 | upheap ((WT *)timers, timercnt - 1); |
1643 | upheap (timers, timercnt - 1); |
1373 | |
1644 | |
1374 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1645 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1375 | } |
1646 | } |
1376 | |
1647 | |
1377 | void |
1648 | void noinline |
1378 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1649 | ev_timer_stop (EV_P_ ev_timer *w) |
1379 | { |
1650 | { |
1380 | ev_clear_pending (EV_A_ (W)w); |
1651 | clear_pending (EV_A_ (W)w); |
1381 | if (!ev_is_active (w)) |
1652 | if (expect_false (!ev_is_active (w))) |
1382 | return; |
1653 | return; |
1383 | |
1654 | |
1384 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1655 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1385 | |
1656 | |
1386 | if (((W)w)->active < timercnt--) |
1657 | { |
|
|
1658 | int active = ((W)w)->active; |
|
|
1659 | |
|
|
1660 | if (expect_true (--active < --timercnt)) |
1387 | { |
1661 | { |
1388 | timers [((W)w)->active - 1] = timers [timercnt]; |
1662 | timers [active] = timers [timercnt]; |
1389 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1663 | adjustheap (timers, timercnt, active); |
1390 | } |
1664 | } |
|
|
1665 | } |
1391 | |
1666 | |
1392 | ((WT)w)->at -= mn_now; |
1667 | ((WT)w)->at -= mn_now; |
1393 | |
1668 | |
1394 | ev_stop (EV_A_ (W)w); |
1669 | ev_stop (EV_A_ (W)w); |
1395 | } |
1670 | } |
1396 | |
1671 | |
1397 | void |
1672 | void noinline |
1398 | ev_timer_again (EV_P_ struct ev_timer *w) |
1673 | ev_timer_again (EV_P_ ev_timer *w) |
1399 | { |
1674 | { |
1400 | if (ev_is_active (w)) |
1675 | if (ev_is_active (w)) |
1401 | { |
1676 | { |
1402 | if (w->repeat) |
1677 | if (w->repeat) |
1403 | { |
1678 | { |
1404 | ((WT)w)->at = mn_now + w->repeat; |
1679 | ((WT)w)->at = mn_now + w->repeat; |
1405 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1680 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1406 | } |
1681 | } |
1407 | else |
1682 | else |
1408 | ev_timer_stop (EV_A_ w); |
1683 | ev_timer_stop (EV_A_ w); |
1409 | } |
1684 | } |
1410 | else if (w->repeat) |
1685 | else if (w->repeat) |
… | |
… | |
1412 | w->at = w->repeat; |
1687 | w->at = w->repeat; |
1413 | ev_timer_start (EV_A_ w); |
1688 | ev_timer_start (EV_A_ w); |
1414 | } |
1689 | } |
1415 | } |
1690 | } |
1416 | |
1691 | |
1417 | #if EV_PERIODICS |
1692 | #if EV_PERIODIC_ENABLE |
1418 | void |
1693 | void noinline |
1419 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1694 | ev_periodic_start (EV_P_ ev_periodic *w) |
1420 | { |
1695 | { |
1421 | if (ev_is_active (w)) |
1696 | if (expect_false (ev_is_active (w))) |
1422 | return; |
1697 | return; |
1423 | |
1698 | |
1424 | if (w->reschedule_cb) |
1699 | if (w->reschedule_cb) |
1425 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1700 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1426 | else if (w->interval) |
1701 | else if (w->interval) |
1427 | { |
1702 | { |
1428 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1703 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1429 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1704 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1430 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1705 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1431 | } |
1706 | } |
|
|
1707 | else |
|
|
1708 | ((WT)w)->at = w->offset; |
1432 | |
1709 | |
1433 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1710 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1434 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1711 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1435 | periodics [periodiccnt - 1] = w; |
1712 | periodics [periodiccnt - 1] = (WT)w; |
1436 | upheap ((WT *)periodics, periodiccnt - 1); |
1713 | upheap (periodics, periodiccnt - 1); |
1437 | |
1714 | |
1438 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1715 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1439 | } |
1716 | } |
1440 | |
1717 | |
1441 | void |
1718 | void noinline |
1442 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1719 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1443 | { |
1720 | { |
1444 | ev_clear_pending (EV_A_ (W)w); |
1721 | clear_pending (EV_A_ (W)w); |
1445 | if (!ev_is_active (w)) |
1722 | if (expect_false (!ev_is_active (w))) |
1446 | return; |
1723 | return; |
1447 | |
1724 | |
1448 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1725 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1449 | |
1726 | |
1450 | if (((W)w)->active < periodiccnt--) |
1727 | { |
|
|
1728 | int active = ((W)w)->active; |
|
|
1729 | |
|
|
1730 | if (expect_true (--active < --periodiccnt)) |
1451 | { |
1731 | { |
1452 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1732 | periodics [active] = periodics [periodiccnt]; |
1453 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1733 | adjustheap (periodics, periodiccnt, active); |
1454 | } |
1734 | } |
|
|
1735 | } |
1455 | |
1736 | |
1456 | ev_stop (EV_A_ (W)w); |
1737 | ev_stop (EV_A_ (W)w); |
1457 | } |
1738 | } |
1458 | |
1739 | |
1459 | void |
1740 | void noinline |
1460 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1741 | ev_periodic_again (EV_P_ ev_periodic *w) |
1461 | { |
1742 | { |
1462 | /* TODO: use adjustheap and recalculation */ |
1743 | /* TODO: use adjustheap and recalculation */ |
1463 | ev_periodic_stop (EV_A_ w); |
1744 | ev_periodic_stop (EV_A_ w); |
1464 | ev_periodic_start (EV_A_ w); |
1745 | ev_periodic_start (EV_A_ w); |
1465 | } |
1746 | } |
1466 | #endif |
1747 | #endif |
1467 | |
1748 | |
1468 | void |
|
|
1469 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1470 | { |
|
|
1471 | if (ev_is_active (w)) |
|
|
1472 | return; |
|
|
1473 | |
|
|
1474 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1475 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1476 | idles [idlecnt - 1] = w; |
|
|
1477 | } |
|
|
1478 | |
|
|
1479 | void |
|
|
1480 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1481 | { |
|
|
1482 | ev_clear_pending (EV_A_ (W)w); |
|
|
1483 | if (!ev_is_active (w)) |
|
|
1484 | return; |
|
|
1485 | |
|
|
1486 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1487 | ev_stop (EV_A_ (W)w); |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | void |
|
|
1491 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1492 | { |
|
|
1493 | if (ev_is_active (w)) |
|
|
1494 | return; |
|
|
1495 | |
|
|
1496 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1497 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1498 | prepares [preparecnt - 1] = w; |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | void |
|
|
1502 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1503 | { |
|
|
1504 | ev_clear_pending (EV_A_ (W)w); |
|
|
1505 | if (!ev_is_active (w)) |
|
|
1506 | return; |
|
|
1507 | |
|
|
1508 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1509 | ev_stop (EV_A_ (W)w); |
|
|
1510 | } |
|
|
1511 | |
|
|
1512 | void |
|
|
1513 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1514 | { |
|
|
1515 | if (ev_is_active (w)) |
|
|
1516 | return; |
|
|
1517 | |
|
|
1518 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1519 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1520 | checks [checkcnt - 1] = w; |
|
|
1521 | } |
|
|
1522 | |
|
|
1523 | void |
|
|
1524 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1525 | { |
|
|
1526 | ev_clear_pending (EV_A_ (W)w); |
|
|
1527 | if (!ev_is_active (w)) |
|
|
1528 | return; |
|
|
1529 | |
|
|
1530 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1531 | ev_stop (EV_A_ (W)w); |
|
|
1532 | } |
|
|
1533 | |
|
|
1534 | #ifndef SA_RESTART |
1749 | #ifndef SA_RESTART |
1535 | # define SA_RESTART 0 |
1750 | # define SA_RESTART 0 |
1536 | #endif |
1751 | #endif |
1537 | |
1752 | |
1538 | void |
1753 | void noinline |
1539 | ev_signal_start (EV_P_ struct ev_signal *w) |
1754 | ev_signal_start (EV_P_ ev_signal *w) |
1540 | { |
1755 | { |
1541 | #if EV_MULTIPLICITY |
1756 | #if EV_MULTIPLICITY |
1542 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1757 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1543 | #endif |
1758 | #endif |
1544 | if (ev_is_active (w)) |
1759 | if (expect_false (ev_is_active (w))) |
1545 | return; |
1760 | return; |
1546 | |
1761 | |
1547 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1762 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1548 | |
1763 | |
|
|
1764 | { |
|
|
1765 | #ifndef _WIN32 |
|
|
1766 | sigset_t full, prev; |
|
|
1767 | sigfillset (&full); |
|
|
1768 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1769 | #endif |
|
|
1770 | |
|
|
1771 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1772 | |
|
|
1773 | #ifndef _WIN32 |
|
|
1774 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1775 | #endif |
|
|
1776 | } |
|
|
1777 | |
1549 | ev_start (EV_A_ (W)w, 1); |
1778 | ev_start (EV_A_ (W)w, 1); |
1550 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1551 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1779 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1552 | |
1780 | |
1553 | if (!((WL)w)->next) |
1781 | if (!((WL)w)->next) |
1554 | { |
1782 | { |
1555 | #if _WIN32 |
1783 | #if _WIN32 |
1556 | signal (w->signum, sighandler); |
1784 | signal (w->signum, sighandler); |
… | |
… | |
1562 | sigaction (w->signum, &sa, 0); |
1790 | sigaction (w->signum, &sa, 0); |
1563 | #endif |
1791 | #endif |
1564 | } |
1792 | } |
1565 | } |
1793 | } |
1566 | |
1794 | |
1567 | void |
1795 | void noinline |
1568 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1796 | ev_signal_stop (EV_P_ ev_signal *w) |
1569 | { |
1797 | { |
1570 | ev_clear_pending (EV_A_ (W)w); |
1798 | clear_pending (EV_A_ (W)w); |
1571 | if (!ev_is_active (w)) |
1799 | if (expect_false (!ev_is_active (w))) |
1572 | return; |
1800 | return; |
1573 | |
1801 | |
1574 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1802 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1575 | ev_stop (EV_A_ (W)w); |
1803 | ev_stop (EV_A_ (W)w); |
1576 | |
1804 | |
1577 | if (!signals [w->signum - 1].head) |
1805 | if (!signals [w->signum - 1].head) |
1578 | signal (w->signum, SIG_DFL); |
1806 | signal (w->signum, SIG_DFL); |
1579 | } |
1807 | } |
1580 | |
1808 | |
1581 | void |
1809 | void |
1582 | ev_child_start (EV_P_ struct ev_child *w) |
1810 | ev_child_start (EV_P_ ev_child *w) |
1583 | { |
1811 | { |
1584 | #if EV_MULTIPLICITY |
1812 | #if EV_MULTIPLICITY |
1585 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1813 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1586 | #endif |
1814 | #endif |
1587 | if (ev_is_active (w)) |
1815 | if (expect_false (ev_is_active (w))) |
1588 | return; |
1816 | return; |
1589 | |
1817 | |
1590 | ev_start (EV_A_ (W)w, 1); |
1818 | ev_start (EV_A_ (W)w, 1); |
1591 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1819 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1592 | } |
1820 | } |
1593 | |
1821 | |
1594 | void |
1822 | void |
1595 | ev_child_stop (EV_P_ struct ev_child *w) |
1823 | ev_child_stop (EV_P_ ev_child *w) |
1596 | { |
1824 | { |
1597 | ev_clear_pending (EV_A_ (W)w); |
1825 | clear_pending (EV_A_ (W)w); |
1598 | if (!ev_is_active (w)) |
1826 | if (expect_false (!ev_is_active (w))) |
1599 | return; |
1827 | return; |
1600 | |
1828 | |
1601 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1829 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1602 | ev_stop (EV_A_ (W)w); |
1830 | ev_stop (EV_A_ (W)w); |
1603 | } |
1831 | } |
1604 | |
1832 | |
|
|
1833 | #if EV_STAT_ENABLE |
|
|
1834 | |
|
|
1835 | # ifdef _WIN32 |
|
|
1836 | # undef lstat |
|
|
1837 | # define lstat(a,b) _stati64 (a,b) |
|
|
1838 | # endif |
|
|
1839 | |
|
|
1840 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1841 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1842 | |
|
|
1843 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1844 | |
|
|
1845 | #if EV_USE_INOTIFY |
|
|
1846 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1847 | |
|
|
1848 | static void noinline |
|
|
1849 | infy_add (EV_P_ ev_stat *w) |
|
|
1850 | { |
|
|
1851 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
1852 | |
|
|
1853 | if (w->wd < 0) |
|
|
1854 | { |
|
|
1855 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1856 | |
|
|
1857 | /* monitor some parent directory for speedup hints */ |
|
|
1858 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1859 | { |
|
|
1860 | char path [4096]; |
|
|
1861 | strcpy (path, w->path); |
|
|
1862 | |
|
|
1863 | do |
|
|
1864 | { |
|
|
1865 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1866 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1867 | |
|
|
1868 | char *pend = strrchr (path, '/'); |
|
|
1869 | |
|
|
1870 | if (!pend) |
|
|
1871 | break; /* whoops, no '/', complain to your admin */ |
|
|
1872 | |
|
|
1873 | *pend = 0; |
|
|
1874 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1875 | } |
|
|
1876 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1877 | } |
|
|
1878 | } |
|
|
1879 | else |
|
|
1880 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1881 | |
|
|
1882 | if (w->wd >= 0) |
|
|
1883 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1884 | } |
|
|
1885 | |
|
|
1886 | static void noinline |
|
|
1887 | infy_del (EV_P_ ev_stat *w) |
|
|
1888 | { |
|
|
1889 | int slot; |
|
|
1890 | int wd = w->wd; |
|
|
1891 | |
|
|
1892 | if (wd < 0) |
|
|
1893 | return; |
|
|
1894 | |
|
|
1895 | w->wd = -2; |
|
|
1896 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1897 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1898 | |
|
|
1899 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1900 | inotify_rm_watch (fs_fd, wd); |
|
|
1901 | } |
|
|
1902 | |
|
|
1903 | static void noinline |
|
|
1904 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1905 | { |
|
|
1906 | if (slot < 0) |
|
|
1907 | /* overflow, need to check for all hahs slots */ |
|
|
1908 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1909 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1910 | else |
|
|
1911 | { |
|
|
1912 | WL w_; |
|
|
1913 | |
|
|
1914 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1915 | { |
|
|
1916 | ev_stat *w = (ev_stat *)w_; |
|
|
1917 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1918 | |
|
|
1919 | if (w->wd == wd || wd == -1) |
|
|
1920 | { |
|
|
1921 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1922 | { |
|
|
1923 | w->wd = -1; |
|
|
1924 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1925 | } |
|
|
1926 | |
|
|
1927 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1928 | } |
|
|
1929 | } |
|
|
1930 | } |
|
|
1931 | } |
|
|
1932 | |
|
|
1933 | static void |
|
|
1934 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1935 | { |
|
|
1936 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1937 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1938 | int ofs; |
|
|
1939 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1940 | |
|
|
1941 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1942 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1943 | } |
|
|
1944 | |
|
|
1945 | void inline_size |
|
|
1946 | infy_init (EV_P) |
|
|
1947 | { |
|
|
1948 | if (fs_fd != -2) |
|
|
1949 | return; |
|
|
1950 | |
|
|
1951 | fs_fd = inotify_init (); |
|
|
1952 | |
|
|
1953 | if (fs_fd >= 0) |
|
|
1954 | { |
|
|
1955 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1956 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1957 | ev_io_start (EV_A_ &fs_w); |
|
|
1958 | } |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | void inline_size |
|
|
1962 | infy_fork (EV_P) |
|
|
1963 | { |
|
|
1964 | int slot; |
|
|
1965 | |
|
|
1966 | if (fs_fd < 0) |
|
|
1967 | return; |
|
|
1968 | |
|
|
1969 | close (fs_fd); |
|
|
1970 | fs_fd = inotify_init (); |
|
|
1971 | |
|
|
1972 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1973 | { |
|
|
1974 | WL w_ = fs_hash [slot].head; |
|
|
1975 | fs_hash [slot].head = 0; |
|
|
1976 | |
|
|
1977 | while (w_) |
|
|
1978 | { |
|
|
1979 | ev_stat *w = (ev_stat *)w_; |
|
|
1980 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1981 | |
|
|
1982 | w->wd = -1; |
|
|
1983 | |
|
|
1984 | if (fs_fd >= 0) |
|
|
1985 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1986 | else |
|
|
1987 | ev_timer_start (EV_A_ &w->timer); |
|
|
1988 | } |
|
|
1989 | |
|
|
1990 | } |
|
|
1991 | } |
|
|
1992 | |
|
|
1993 | #endif |
|
|
1994 | |
|
|
1995 | void |
|
|
1996 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1997 | { |
|
|
1998 | if (lstat (w->path, &w->attr) < 0) |
|
|
1999 | w->attr.st_nlink = 0; |
|
|
2000 | else if (!w->attr.st_nlink) |
|
|
2001 | w->attr.st_nlink = 1; |
|
|
2002 | } |
|
|
2003 | |
|
|
2004 | static void noinline |
|
|
2005 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2006 | { |
|
|
2007 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2008 | |
|
|
2009 | /* we copy this here each the time so that */ |
|
|
2010 | /* prev has the old value when the callback gets invoked */ |
|
|
2011 | w->prev = w->attr; |
|
|
2012 | ev_stat_stat (EV_A_ w); |
|
|
2013 | |
|
|
2014 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2015 | if ( |
|
|
2016 | w->prev.st_dev != w->attr.st_dev |
|
|
2017 | || w->prev.st_ino != w->attr.st_ino |
|
|
2018 | || w->prev.st_mode != w->attr.st_mode |
|
|
2019 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2020 | || w->prev.st_uid != w->attr.st_uid |
|
|
2021 | || w->prev.st_gid != w->attr.st_gid |
|
|
2022 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2023 | || w->prev.st_size != w->attr.st_size |
|
|
2024 | || w->prev.st_atime != w->attr.st_atime |
|
|
2025 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2026 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2027 | ) { |
|
|
2028 | #if EV_USE_INOTIFY |
|
|
2029 | infy_del (EV_A_ w); |
|
|
2030 | infy_add (EV_A_ w); |
|
|
2031 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2032 | #endif |
|
|
2033 | |
|
|
2034 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2035 | } |
|
|
2036 | } |
|
|
2037 | |
|
|
2038 | void |
|
|
2039 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2040 | { |
|
|
2041 | if (expect_false (ev_is_active (w))) |
|
|
2042 | return; |
|
|
2043 | |
|
|
2044 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2045 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2046 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2047 | |
|
|
2048 | ev_stat_stat (EV_A_ w); |
|
|
2049 | |
|
|
2050 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2051 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2052 | |
|
|
2053 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2054 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2055 | |
|
|
2056 | #if EV_USE_INOTIFY |
|
|
2057 | infy_init (EV_A); |
|
|
2058 | |
|
|
2059 | if (fs_fd >= 0) |
|
|
2060 | infy_add (EV_A_ w); |
|
|
2061 | else |
|
|
2062 | #endif |
|
|
2063 | ev_timer_start (EV_A_ &w->timer); |
|
|
2064 | |
|
|
2065 | ev_start (EV_A_ (W)w, 1); |
|
|
2066 | } |
|
|
2067 | |
|
|
2068 | void |
|
|
2069 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2070 | { |
|
|
2071 | clear_pending (EV_A_ (W)w); |
|
|
2072 | if (expect_false (!ev_is_active (w))) |
|
|
2073 | return; |
|
|
2074 | |
|
|
2075 | #if EV_USE_INOTIFY |
|
|
2076 | infy_del (EV_A_ w); |
|
|
2077 | #endif |
|
|
2078 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2079 | |
|
|
2080 | ev_stop (EV_A_ (W)w); |
|
|
2081 | } |
|
|
2082 | #endif |
|
|
2083 | |
|
|
2084 | #if EV_IDLE_ENABLE |
|
|
2085 | void |
|
|
2086 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2087 | { |
|
|
2088 | if (expect_false (ev_is_active (w))) |
|
|
2089 | return; |
|
|
2090 | |
|
|
2091 | pri_adjust (EV_A_ (W)w); |
|
|
2092 | |
|
|
2093 | { |
|
|
2094 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2095 | |
|
|
2096 | ++idleall; |
|
|
2097 | ev_start (EV_A_ (W)w, active); |
|
|
2098 | |
|
|
2099 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2100 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2101 | } |
|
|
2102 | } |
|
|
2103 | |
|
|
2104 | void |
|
|
2105 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2106 | { |
|
|
2107 | clear_pending (EV_A_ (W)w); |
|
|
2108 | if (expect_false (!ev_is_active (w))) |
|
|
2109 | return; |
|
|
2110 | |
|
|
2111 | { |
|
|
2112 | int active = ((W)w)->active; |
|
|
2113 | |
|
|
2114 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2115 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2116 | |
|
|
2117 | ev_stop (EV_A_ (W)w); |
|
|
2118 | --idleall; |
|
|
2119 | } |
|
|
2120 | } |
|
|
2121 | #endif |
|
|
2122 | |
|
|
2123 | void |
|
|
2124 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2125 | { |
|
|
2126 | if (expect_false (ev_is_active (w))) |
|
|
2127 | return; |
|
|
2128 | |
|
|
2129 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2130 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2131 | prepares [preparecnt - 1] = w; |
|
|
2132 | } |
|
|
2133 | |
|
|
2134 | void |
|
|
2135 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2136 | { |
|
|
2137 | clear_pending (EV_A_ (W)w); |
|
|
2138 | if (expect_false (!ev_is_active (w))) |
|
|
2139 | return; |
|
|
2140 | |
|
|
2141 | { |
|
|
2142 | int active = ((W)w)->active; |
|
|
2143 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2144 | ((W)prepares [active - 1])->active = active; |
|
|
2145 | } |
|
|
2146 | |
|
|
2147 | ev_stop (EV_A_ (W)w); |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | void |
|
|
2151 | ev_check_start (EV_P_ ev_check *w) |
|
|
2152 | { |
|
|
2153 | if (expect_false (ev_is_active (w))) |
|
|
2154 | return; |
|
|
2155 | |
|
|
2156 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2157 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2158 | checks [checkcnt - 1] = w; |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | void |
|
|
2162 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2163 | { |
|
|
2164 | clear_pending (EV_A_ (W)w); |
|
|
2165 | if (expect_false (!ev_is_active (w))) |
|
|
2166 | return; |
|
|
2167 | |
|
|
2168 | { |
|
|
2169 | int active = ((W)w)->active; |
|
|
2170 | checks [active - 1] = checks [--checkcnt]; |
|
|
2171 | ((W)checks [active - 1])->active = active; |
|
|
2172 | } |
|
|
2173 | |
|
|
2174 | ev_stop (EV_A_ (W)w); |
|
|
2175 | } |
|
|
2176 | |
|
|
2177 | #if EV_EMBED_ENABLE |
|
|
2178 | void noinline |
|
|
2179 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2180 | { |
|
|
2181 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2182 | } |
|
|
2183 | |
|
|
2184 | static void |
|
|
2185 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2186 | { |
|
|
2187 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2188 | |
|
|
2189 | if (ev_cb (w)) |
|
|
2190 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2191 | else |
|
|
2192 | ev_embed_sweep (loop, w); |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | void |
|
|
2196 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2197 | { |
|
|
2198 | if (expect_false (ev_is_active (w))) |
|
|
2199 | return; |
|
|
2200 | |
|
|
2201 | { |
|
|
2202 | struct ev_loop *loop = w->loop; |
|
|
2203 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2204 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2205 | } |
|
|
2206 | |
|
|
2207 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2208 | ev_io_start (EV_A_ &w->io); |
|
|
2209 | |
|
|
2210 | ev_start (EV_A_ (W)w, 1); |
|
|
2211 | } |
|
|
2212 | |
|
|
2213 | void |
|
|
2214 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2215 | { |
|
|
2216 | clear_pending (EV_A_ (W)w); |
|
|
2217 | if (expect_false (!ev_is_active (w))) |
|
|
2218 | return; |
|
|
2219 | |
|
|
2220 | ev_io_stop (EV_A_ &w->io); |
|
|
2221 | |
|
|
2222 | ev_stop (EV_A_ (W)w); |
|
|
2223 | } |
|
|
2224 | #endif |
|
|
2225 | |
|
|
2226 | #if EV_FORK_ENABLE |
|
|
2227 | void |
|
|
2228 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2229 | { |
|
|
2230 | if (expect_false (ev_is_active (w))) |
|
|
2231 | return; |
|
|
2232 | |
|
|
2233 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2234 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2235 | forks [forkcnt - 1] = w; |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | void |
|
|
2239 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2240 | { |
|
|
2241 | clear_pending (EV_A_ (W)w); |
|
|
2242 | if (expect_false (!ev_is_active (w))) |
|
|
2243 | return; |
|
|
2244 | |
|
|
2245 | { |
|
|
2246 | int active = ((W)w)->active; |
|
|
2247 | forks [active - 1] = forks [--forkcnt]; |
|
|
2248 | ((W)forks [active - 1])->active = active; |
|
|
2249 | } |
|
|
2250 | |
|
|
2251 | ev_stop (EV_A_ (W)w); |
|
|
2252 | } |
|
|
2253 | #endif |
|
|
2254 | |
1605 | /*****************************************************************************/ |
2255 | /*****************************************************************************/ |
1606 | |
2256 | |
1607 | struct ev_once |
2257 | struct ev_once |
1608 | { |
2258 | { |
1609 | struct ev_io io; |
2259 | ev_io io; |
1610 | struct ev_timer to; |
2260 | ev_timer to; |
1611 | void (*cb)(int revents, void *arg); |
2261 | void (*cb)(int revents, void *arg); |
1612 | void *arg; |
2262 | void *arg; |
1613 | }; |
2263 | }; |
1614 | |
2264 | |
1615 | static void |
2265 | static void |
… | |
… | |
1624 | |
2274 | |
1625 | cb (revents, arg); |
2275 | cb (revents, arg); |
1626 | } |
2276 | } |
1627 | |
2277 | |
1628 | static void |
2278 | static void |
1629 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2279 | once_cb_io (EV_P_ ev_io *w, int revents) |
1630 | { |
2280 | { |
1631 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2281 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1632 | } |
2282 | } |
1633 | |
2283 | |
1634 | static void |
2284 | static void |
1635 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2285 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1636 | { |
2286 | { |
1637 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2287 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1638 | } |
2288 | } |
1639 | |
2289 | |
1640 | void |
2290 | void |
1641 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2291 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1642 | { |
2292 | { |
1643 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2293 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1644 | |
2294 | |
1645 | if (!once) |
2295 | if (expect_false (!once)) |
|
|
2296 | { |
1646 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2297 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1647 | else |
2298 | return; |
1648 | { |
2299 | } |
|
|
2300 | |
1649 | once->cb = cb; |
2301 | once->cb = cb; |
1650 | once->arg = arg; |
2302 | once->arg = arg; |
1651 | |
2303 | |
1652 | ev_init (&once->io, once_cb_io); |
2304 | ev_init (&once->io, once_cb_io); |
1653 | if (fd >= 0) |
2305 | if (fd >= 0) |
1654 | { |
2306 | { |
1655 | ev_io_set (&once->io, fd, events); |
2307 | ev_io_set (&once->io, fd, events); |
1656 | ev_io_start (EV_A_ &once->io); |
2308 | ev_io_start (EV_A_ &once->io); |
1657 | } |
2309 | } |
1658 | |
2310 | |
1659 | ev_init (&once->to, once_cb_to); |
2311 | ev_init (&once->to, once_cb_to); |
1660 | if (timeout >= 0.) |
2312 | if (timeout >= 0.) |
1661 | { |
2313 | { |
1662 | ev_timer_set (&once->to, timeout, 0.); |
2314 | ev_timer_set (&once->to, timeout, 0.); |
1663 | ev_timer_start (EV_A_ &once->to); |
2315 | ev_timer_start (EV_A_ &once->to); |
1664 | } |
|
|
1665 | } |
2316 | } |
1666 | } |
2317 | } |
1667 | |
2318 | |
1668 | #ifdef __cplusplus |
2319 | #ifdef __cplusplus |
1669 | } |
2320 | } |