… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
|
|
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
32 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
|
|
42 | |
|
|
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
|
|
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
|
|
48 | # define EV_USE_REALTIME 1 |
|
|
49 | # endif |
|
|
50 | # else |
|
|
51 | # ifndef EV_USE_MONOTONIC |
|
|
52 | # define EV_USE_MONOTONIC 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_REALTIME |
|
|
55 | # define EV_USE_REALTIME 0 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | |
|
|
59 | # ifndef EV_USE_SELECT |
|
|
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
|
|
65 | # endif |
|
|
66 | |
|
|
67 | # ifndef EV_USE_POLL |
|
|
68 | # if HAVE_POLL && HAVE_POLL_H |
|
|
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
|
|
73 | # endif |
|
|
74 | |
|
|
75 | # ifndef EV_USE_EPOLL |
|
|
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
|
|
81 | # endif |
|
|
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
|
|
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
85 | # define EV_USE_KQUEUE 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_KQUEUE 0 |
|
|
88 | # endif |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # ifndef EV_USE_PORT |
|
|
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
93 | # define EV_USE_PORT 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_PORT 0 |
|
|
96 | # endif |
|
|
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 |
|
|
105 | # endif |
|
|
106 | |
33 | #endif |
107 | #endif |
34 | |
108 | |
35 | #include <math.h> |
109 | #include <math.h> |
36 | #include <stdlib.h> |
110 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
111 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
112 | #include <stddef.h> |
41 | |
113 | |
42 | #include <stdio.h> |
114 | #include <stdio.h> |
43 | |
115 | |
44 | #include <assert.h> |
116 | #include <assert.h> |
45 | #include <errno.h> |
117 | #include <errno.h> |
46 | #include <sys/types.h> |
118 | #include <sys/types.h> |
|
|
119 | #include <time.h> |
|
|
120 | |
|
|
121 | #include <signal.h> |
|
|
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
|
|
128 | |
47 | #ifndef WIN32 |
129 | #ifndef _WIN32 |
|
|
130 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
|
|
132 | # include <unistd.h> |
|
|
133 | #else |
|
|
134 | # define WIN32_LEAN_AND_MEAN |
|
|
135 | # include <windows.h> |
|
|
136 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
137 | # define EV_SELECT_IS_WINSOCKET 1 |
49 | #endif |
138 | # endif |
50 | #include <sys/time.h> |
139 | #endif |
51 | #include <time.h> |
|
|
52 | |
140 | |
53 | /**/ |
141 | /**/ |
54 | |
142 | |
55 | #ifndef EV_USE_MONOTONIC |
143 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
144 | # define EV_USE_MONOTONIC 0 |
|
|
145 | #endif |
|
|
146 | |
|
|
147 | #ifndef EV_USE_REALTIME |
|
|
148 | # define EV_USE_REALTIME 0 |
57 | #endif |
149 | #endif |
58 | |
150 | |
59 | #ifndef EV_USE_SELECT |
151 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
152 | # define EV_USE_SELECT 1 |
61 | #endif |
153 | #endif |
62 | |
154 | |
63 | #ifndef EV_USE_POLL |
155 | #ifndef EV_USE_POLL |
64 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
156 | # ifdef _WIN32 |
|
|
157 | # define EV_USE_POLL 0 |
|
|
158 | # else |
|
|
159 | # define EV_USE_POLL 1 |
|
|
160 | # endif |
65 | #endif |
161 | #endif |
66 | |
162 | |
67 | #ifndef EV_USE_EPOLL |
163 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
164 | # define EV_USE_EPOLL 0 |
69 | #endif |
165 | #endif |
70 | |
166 | |
71 | #ifndef EV_USE_KQUEUE |
167 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
168 | # define EV_USE_KQUEUE 0 |
73 | #endif |
169 | #endif |
74 | |
170 | |
75 | #ifndef EV_USE_REALTIME |
171 | #ifndef EV_USE_PORT |
76 | # define EV_USE_REALTIME 1 |
172 | # define EV_USE_PORT 0 |
|
|
173 | #endif |
|
|
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 |
77 | #endif |
193 | #endif |
78 | |
194 | |
79 | /**/ |
195 | /**/ |
80 | |
196 | |
81 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
86 | #ifndef CLOCK_REALTIME |
202 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
203 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
204 | # define EV_USE_REALTIME 0 |
89 | #endif |
205 | #endif |
90 | |
206 | |
|
|
207 | #if EV_SELECT_IS_WINSOCKET |
|
|
208 | # include <winsock.h> |
|
|
209 | #endif |
|
|
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 | |
91 | /**/ |
219 | /**/ |
92 | |
220 | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
97 | |
|
|
98 | #include "ev.h" |
|
|
99 | |
224 | |
100 | #if __GNUC__ >= 3 |
225 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
227 | # define inline_size static inline /* inline for codesize */ |
|
|
228 | # if EV_MINIMAL |
102 | # define inline inline |
229 | # define noinline __attribute__ ((noinline)) |
|
|
230 | # define inline_speed static noinline |
|
|
231 | # else |
|
|
232 | # define noinline |
|
|
233 | # define inline_speed static inline |
|
|
234 | # endif |
103 | #else |
235 | #else |
104 | # define expect(expr,value) (expr) |
236 | # define expect(expr,value) (expr) |
|
|
237 | # define inline_speed static |
105 | # define inline static |
238 | # define inline_size static |
|
|
239 | # define noinline |
106 | #endif |
240 | #endif |
107 | |
241 | |
108 | #define expect_false(expr) expect ((expr) != 0, 0) |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
244 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
246 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
113 | |
247 | |
|
|
248 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
250 | |
114 | typedef struct ev_watcher *W; |
251 | typedef ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
252 | typedef ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
253 | typedef ev_watcher_time *WT; |
117 | |
254 | |
118 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
256 | |
|
|
257 | #ifdef _WIN32 |
|
|
258 | # include "ev_win32.c" |
|
|
259 | #endif |
|
|
260 | |
|
|
261 | /*****************************************************************************/ |
|
|
262 | |
|
|
263 | static void (*syserr_cb)(const char *msg); |
|
|
264 | |
|
|
265 | void |
|
|
266 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
267 | { |
|
|
268 | syserr_cb = cb; |
|
|
269 | } |
|
|
270 | |
|
|
271 | static void noinline |
|
|
272 | syserr (const char *msg) |
|
|
273 | { |
|
|
274 | if (!msg) |
|
|
275 | msg = "(libev) system error"; |
|
|
276 | |
|
|
277 | if (syserr_cb) |
|
|
278 | syserr_cb (msg); |
|
|
279 | else |
|
|
280 | { |
|
|
281 | perror (msg); |
|
|
282 | abort (); |
|
|
283 | } |
|
|
284 | } |
|
|
285 | |
|
|
286 | static void *(*alloc)(void *ptr, long size); |
|
|
287 | |
|
|
288 | void |
|
|
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
290 | { |
|
|
291 | alloc = cb; |
|
|
292 | } |
|
|
293 | |
|
|
294 | inline_speed void * |
|
|
295 | ev_realloc (void *ptr, long size) |
|
|
296 | { |
|
|
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
298 | |
|
|
299 | if (!ptr && size) |
|
|
300 | { |
|
|
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
302 | abort (); |
|
|
303 | } |
|
|
304 | |
|
|
305 | return ptr; |
|
|
306 | } |
|
|
307 | |
|
|
308 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
309 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
310 | |
|
|
311 | /*****************************************************************************/ |
|
|
312 | |
|
|
313 | typedef struct |
|
|
314 | { |
|
|
315 | WL head; |
|
|
316 | unsigned char events; |
|
|
317 | unsigned char reify; |
|
|
318 | #if EV_SELECT_IS_WINSOCKET |
|
|
319 | SOCKET handle; |
|
|
320 | #endif |
|
|
321 | } ANFD; |
|
|
322 | |
|
|
323 | typedef struct |
|
|
324 | { |
|
|
325 | W w; |
|
|
326 | int events; |
|
|
327 | } ANPENDING; |
|
|
328 | |
|
|
329 | #if EV_USE_INOTIFY |
|
|
330 | typedef struct |
|
|
331 | { |
|
|
332 | WL head; |
|
|
333 | } ANFS; |
|
|
334 | #endif |
|
|
335 | |
|
|
336 | #if EV_MULTIPLICITY |
|
|
337 | |
|
|
338 | struct ev_loop |
|
|
339 | { |
|
|
340 | ev_tstamp ev_rt_now; |
|
|
341 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
342 | #define VAR(name,decl) decl; |
|
|
343 | #include "ev_vars.h" |
|
|
344 | #undef VAR |
|
|
345 | }; |
|
|
346 | #include "ev_wrap.h" |
|
|
347 | |
|
|
348 | static struct ev_loop default_loop_struct; |
|
|
349 | struct ev_loop *ev_default_loop_ptr; |
|
|
350 | |
|
|
351 | #else |
|
|
352 | |
119 | ev_tstamp ev_now; |
353 | ev_tstamp ev_rt_now; |
120 | int ev_method; |
354 | #define VAR(name,decl) static decl; |
|
|
355 | #include "ev_vars.h" |
|
|
356 | #undef VAR |
121 | |
357 | |
122 | static int have_monotonic; /* runtime */ |
358 | static int ev_default_loop_ptr; |
123 | |
359 | |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
360 | #endif |
125 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
126 | static void (*method_poll)(ev_tstamp timeout); |
|
|
127 | |
361 | |
128 | /*****************************************************************************/ |
362 | /*****************************************************************************/ |
129 | |
363 | |
130 | ev_tstamp |
364 | ev_tstamp |
131 | ev_time (void) |
365 | ev_time (void) |
… | |
… | |
139 | gettimeofday (&tv, 0); |
373 | gettimeofday (&tv, 0); |
140 | return tv.tv_sec + tv.tv_usec * 1e-6; |
374 | return tv.tv_sec + tv.tv_usec * 1e-6; |
141 | #endif |
375 | #endif |
142 | } |
376 | } |
143 | |
377 | |
144 | static ev_tstamp |
378 | ev_tstamp inline_size |
145 | get_clock (void) |
379 | get_clock (void) |
146 | { |
380 | { |
147 | #if EV_USE_MONOTONIC |
381 | #if EV_USE_MONOTONIC |
148 | if (expect_true (have_monotonic)) |
382 | if (expect_true (have_monotonic)) |
149 | { |
383 | { |
… | |
… | |
154 | #endif |
388 | #endif |
155 | |
389 | |
156 | return ev_time (); |
390 | return ev_time (); |
157 | } |
391 | } |
158 | |
392 | |
|
|
393 | #if EV_MULTIPLICITY |
|
|
394 | ev_tstamp |
|
|
395 | ev_now (EV_P) |
|
|
396 | { |
|
|
397 | return ev_rt_now; |
|
|
398 | } |
|
|
399 | #endif |
|
|
400 | |
159 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
401 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
160 | |
402 | |
161 | #define array_needsize(base,cur,cnt,init) \ |
403 | #define array_needsize(type,base,cur,cnt,init) \ |
162 | if (expect_false ((cnt) > cur)) \ |
404 | if (expect_false ((cnt) > cur)) \ |
163 | { \ |
405 | { \ |
164 | int newcnt = cur; \ |
406 | int newcnt = cur; \ |
165 | do \ |
407 | do \ |
166 | { \ |
408 | { \ |
167 | newcnt = array_roundsize (base, newcnt << 1); \ |
409 | newcnt = array_roundsize (type, newcnt << 1); \ |
168 | } \ |
410 | } \ |
169 | while ((cnt) > newcnt); \ |
411 | while ((cnt) > newcnt); \ |
170 | \ |
412 | \ |
171 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
413 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
172 | init (base + cur, newcnt - cur); \ |
414 | init (base + cur, newcnt - cur); \ |
173 | cur = newcnt; \ |
415 | cur = newcnt; \ |
174 | } |
416 | } |
|
|
417 | |
|
|
418 | #define array_slim(type,stem) \ |
|
|
419 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
420 | { \ |
|
|
421 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
422 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
423 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
424 | } |
|
|
425 | |
|
|
426 | #define array_free(stem, idx) \ |
|
|
427 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
175 | |
428 | |
176 | /*****************************************************************************/ |
429 | /*****************************************************************************/ |
177 | |
430 | |
178 | typedef struct |
431 | void noinline |
|
|
432 | ev_feed_event (EV_P_ void *w, int revents) |
179 | { |
433 | { |
180 | struct ev_io *head; |
434 | W w_ = (W)w; |
181 | unsigned char events; |
|
|
182 | unsigned char reify; |
|
|
183 | } ANFD; |
|
|
184 | |
435 | |
185 | static ANFD *anfds; |
436 | if (expect_false (w_->pending)) |
186 | static int anfdmax; |
437 | { |
|
|
438 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
439 | return; |
|
|
440 | } |
187 | |
441 | |
188 | static void |
442 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
443 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
444 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
445 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
446 | } |
|
|
447 | |
|
|
448 | void inline_size |
|
|
449 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
450 | { |
|
|
451 | int i; |
|
|
452 | |
|
|
453 | for (i = 0; i < eventcnt; ++i) |
|
|
454 | ev_feed_event (EV_A_ events [i], type); |
|
|
455 | } |
|
|
456 | |
|
|
457 | /*****************************************************************************/ |
|
|
458 | |
|
|
459 | void inline_size |
189 | anfds_init (ANFD *base, int count) |
460 | anfds_init (ANFD *base, int count) |
190 | { |
461 | { |
191 | while (count--) |
462 | while (count--) |
192 | { |
463 | { |
193 | base->head = 0; |
464 | base->head = 0; |
… | |
… | |
196 | |
467 | |
197 | ++base; |
468 | ++base; |
198 | } |
469 | } |
199 | } |
470 | } |
200 | |
471 | |
201 | typedef struct |
472 | void inline_speed |
202 | { |
|
|
203 | W w; |
|
|
204 | int events; |
|
|
205 | } ANPENDING; |
|
|
206 | |
|
|
207 | static ANPENDING *pendings [NUMPRI]; |
|
|
208 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
209 | |
|
|
210 | static void |
|
|
211 | event (W w, int events) |
|
|
212 | { |
|
|
213 | if (w->pending) |
|
|
214 | { |
|
|
215 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
216 | return; |
|
|
217 | } |
|
|
218 | |
|
|
219 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
220 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
221 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
222 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
223 | } |
|
|
224 | |
|
|
225 | static void |
|
|
226 | queue_events (W *events, int eventcnt, int type) |
|
|
227 | { |
|
|
228 | int i; |
|
|
229 | |
|
|
230 | for (i = 0; i < eventcnt; ++i) |
|
|
231 | event (events [i], type); |
|
|
232 | } |
|
|
233 | |
|
|
234 | static void |
|
|
235 | fd_event (int fd, int events) |
473 | fd_event (EV_P_ int fd, int revents) |
236 | { |
474 | { |
237 | ANFD *anfd = anfds + fd; |
475 | ANFD *anfd = anfds + fd; |
238 | struct ev_io *w; |
476 | ev_io *w; |
239 | |
477 | |
240 | for (w = anfd->head; w; w = w->next) |
478 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
241 | { |
479 | { |
242 | int ev = w->events & events; |
480 | int ev = w->events & revents; |
243 | |
481 | |
244 | if (ev) |
482 | if (ev) |
245 | event ((W)w, ev); |
483 | ev_feed_event (EV_A_ (W)w, ev); |
246 | } |
484 | } |
247 | } |
485 | } |
248 | |
486 | |
249 | /*****************************************************************************/ |
487 | void |
|
|
488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
489 | { |
|
|
490 | fd_event (EV_A_ fd, revents); |
|
|
491 | } |
250 | |
492 | |
251 | static int *fdchanges; |
493 | void inline_size |
252 | static int fdchangemax, fdchangecnt; |
494 | fd_reify (EV_P) |
253 | |
|
|
254 | static void |
|
|
255 | fd_reify (void) |
|
|
256 | { |
495 | { |
257 | int i; |
496 | int i; |
258 | |
497 | |
259 | for (i = 0; i < fdchangecnt; ++i) |
498 | for (i = 0; i < fdchangecnt; ++i) |
260 | { |
499 | { |
261 | int fd = fdchanges [i]; |
500 | int fd = fdchanges [i]; |
262 | ANFD *anfd = anfds + fd; |
501 | ANFD *anfd = anfds + fd; |
263 | struct ev_io *w; |
502 | ev_io *w; |
264 | |
503 | |
265 | int events = 0; |
504 | int events = 0; |
266 | |
505 | |
267 | for (w = anfd->head; w; w = w->next) |
506 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
268 | events |= w->events; |
507 | events |= w->events; |
269 | |
508 | |
|
|
509 | #if EV_SELECT_IS_WINSOCKET |
|
|
510 | if (events) |
|
|
511 | { |
|
|
512 | unsigned long argp; |
|
|
513 | anfd->handle = _get_osfhandle (fd); |
|
|
514 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
515 | } |
|
|
516 | #endif |
|
|
517 | |
270 | anfd->reify = 0; |
518 | anfd->reify = 0; |
271 | |
519 | |
272 | if (anfd->events != events) |
|
|
273 | { |
|
|
274 | method_modify (fd, anfd->events, events); |
520 | backend_modify (EV_A_ fd, anfd->events, events); |
275 | anfd->events = events; |
521 | anfd->events = events; |
276 | } |
|
|
277 | } |
522 | } |
278 | |
523 | |
279 | fdchangecnt = 0; |
524 | fdchangecnt = 0; |
280 | } |
525 | } |
281 | |
526 | |
282 | static void |
527 | void inline_size |
283 | fd_change (int fd) |
528 | fd_change (EV_P_ int fd) |
284 | { |
529 | { |
285 | if (anfds [fd].reify || fdchangecnt < 0) |
530 | if (expect_false (anfds [fd].reify)) |
286 | return; |
531 | return; |
287 | |
532 | |
288 | anfds [fd].reify = 1; |
533 | anfds [fd].reify = 1; |
289 | |
534 | |
290 | ++fdchangecnt; |
535 | ++fdchangecnt; |
291 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
536 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
292 | fdchanges [fdchangecnt - 1] = fd; |
537 | fdchanges [fdchangecnt - 1] = fd; |
293 | } |
538 | } |
294 | |
539 | |
295 | static void |
540 | void inline_speed |
296 | fd_kill (int fd) |
541 | fd_kill (EV_P_ int fd) |
297 | { |
542 | { |
298 | struct ev_io *w; |
543 | ev_io *w; |
299 | |
544 | |
300 | printf ("killing fd %d\n", fd);//D |
|
|
301 | while ((w = anfds [fd].head)) |
545 | while ((w = (ev_io *)anfds [fd].head)) |
302 | { |
546 | { |
303 | ev_io_stop (w); |
547 | ev_io_stop (EV_A_ w); |
304 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
548 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
305 | } |
549 | } |
|
|
550 | } |
|
|
551 | |
|
|
552 | int inline_size |
|
|
553 | fd_valid (int fd) |
|
|
554 | { |
|
|
555 | #ifdef _WIN32 |
|
|
556 | return _get_osfhandle (fd) != -1; |
|
|
557 | #else |
|
|
558 | return fcntl (fd, F_GETFD) != -1; |
|
|
559 | #endif |
306 | } |
560 | } |
307 | |
561 | |
308 | /* called on EBADF to verify fds */ |
562 | /* called on EBADF to verify fds */ |
309 | static void |
563 | static void noinline |
310 | fd_ebadf (void) |
564 | fd_ebadf (EV_P) |
311 | { |
565 | { |
312 | int fd; |
566 | int fd; |
313 | |
567 | |
314 | for (fd = 0; fd < anfdmax; ++fd) |
568 | for (fd = 0; fd < anfdmax; ++fd) |
315 | if (anfds [fd].events) |
569 | if (anfds [fd].events) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
570 | if (!fd_valid (fd) == -1 && errno == EBADF) |
317 | fd_kill (fd); |
571 | fd_kill (EV_A_ fd); |
318 | } |
572 | } |
319 | |
573 | |
320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
574 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
321 | static void |
575 | static void noinline |
322 | fd_enomem (void) |
576 | fd_enomem (EV_P) |
323 | { |
577 | { |
324 | int fd = anfdmax; |
578 | int fd; |
325 | |
579 | |
326 | while (fd--) |
580 | for (fd = anfdmax; fd--; ) |
327 | if (anfds [fd].events) |
581 | if (anfds [fd].events) |
328 | { |
582 | { |
329 | close (fd); |
|
|
330 | fd_kill (fd); |
583 | fd_kill (EV_A_ fd); |
331 | return; |
584 | return; |
332 | } |
585 | } |
333 | } |
586 | } |
334 | |
587 | |
|
|
588 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
589 | static void noinline |
|
|
590 | fd_rearm_all (EV_P) |
|
|
591 | { |
|
|
592 | int fd; |
|
|
593 | |
|
|
594 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
595 | if (anfds [fd].events) |
|
|
596 | { |
|
|
597 | anfds [fd].events = 0; |
|
|
598 | fd_change (EV_A_ fd); |
|
|
599 | } |
|
|
600 | } |
|
|
601 | |
335 | /*****************************************************************************/ |
602 | /*****************************************************************************/ |
336 | |
603 | |
337 | static struct ev_timer **timers; |
604 | void inline_speed |
338 | static int timermax, timercnt; |
|
|
339 | |
|
|
340 | static struct ev_periodic **periodics; |
|
|
341 | static int periodicmax, periodiccnt; |
|
|
342 | |
|
|
343 | static void |
|
|
344 | upheap (WT *timers, int k) |
605 | upheap (WT *heap, int k) |
345 | { |
606 | { |
346 | WT w = timers [k]; |
607 | WT w = heap [k]; |
347 | |
608 | |
348 | while (k && timers [k >> 1]->at > w->at) |
609 | while (k && heap [k >> 1]->at > w->at) |
349 | { |
610 | { |
350 | timers [k] = timers [k >> 1]; |
611 | heap [k] = heap [k >> 1]; |
351 | timers [k]->active = k + 1; |
612 | ((W)heap [k])->active = k + 1; |
352 | k >>= 1; |
613 | k >>= 1; |
353 | } |
614 | } |
354 | |
615 | |
355 | timers [k] = w; |
616 | heap [k] = w; |
356 | timers [k]->active = k + 1; |
617 | ((W)heap [k])->active = k + 1; |
357 | |
618 | |
358 | } |
619 | } |
359 | |
620 | |
360 | static void |
621 | void inline_speed |
361 | downheap (WT *timers, int N, int k) |
622 | downheap (WT *heap, int N, int k) |
362 | { |
623 | { |
363 | WT w = timers [k]; |
624 | WT w = heap [k]; |
364 | |
625 | |
365 | while (k < (N >> 1)) |
626 | while (k < (N >> 1)) |
366 | { |
627 | { |
367 | int j = k << 1; |
628 | int j = k << 1; |
368 | |
629 | |
369 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
630 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
370 | ++j; |
631 | ++j; |
371 | |
632 | |
372 | if (w->at <= timers [j]->at) |
633 | if (w->at <= heap [j]->at) |
373 | break; |
634 | break; |
374 | |
635 | |
375 | timers [k] = timers [j]; |
636 | heap [k] = heap [j]; |
376 | timers [k]->active = k + 1; |
637 | ((W)heap [k])->active = k + 1; |
377 | k = j; |
638 | k = j; |
378 | } |
639 | } |
379 | |
640 | |
380 | timers [k] = w; |
641 | heap [k] = w; |
381 | timers [k]->active = k + 1; |
642 | ((W)heap [k])->active = k + 1; |
|
|
643 | } |
|
|
644 | |
|
|
645 | void inline_size |
|
|
646 | adjustheap (WT *heap, int N, int k) |
|
|
647 | { |
|
|
648 | upheap (heap, k); |
|
|
649 | downheap (heap, N, k); |
382 | } |
650 | } |
383 | |
651 | |
384 | /*****************************************************************************/ |
652 | /*****************************************************************************/ |
385 | |
653 | |
386 | typedef struct |
654 | typedef struct |
387 | { |
655 | { |
388 | struct ev_signal *head; |
656 | WL head; |
389 | sig_atomic_t volatile gotsig; |
657 | sig_atomic_t volatile gotsig; |
390 | } ANSIG; |
658 | } ANSIG; |
391 | |
659 | |
392 | static ANSIG *signals; |
660 | static ANSIG *signals; |
393 | static int signalmax; |
661 | static int signalmax; |
394 | |
662 | |
395 | static int sigpipe [2]; |
663 | static int sigpipe [2]; |
396 | static sig_atomic_t volatile gotsig; |
664 | static sig_atomic_t volatile gotsig; |
397 | static struct ev_io sigev; |
665 | static ev_io sigev; |
398 | |
666 | |
399 | static void |
667 | void inline_size |
400 | signals_init (ANSIG *base, int count) |
668 | signals_init (ANSIG *base, int count) |
401 | { |
669 | { |
402 | while (count--) |
670 | while (count--) |
403 | { |
671 | { |
404 | base->head = 0; |
672 | base->head = 0; |
… | |
… | |
409 | } |
677 | } |
410 | |
678 | |
411 | static void |
679 | static void |
412 | sighandler (int signum) |
680 | sighandler (int signum) |
413 | { |
681 | { |
|
|
682 | #if _WIN32 |
|
|
683 | signal (signum, sighandler); |
|
|
684 | #endif |
|
|
685 | |
414 | signals [signum - 1].gotsig = 1; |
686 | signals [signum - 1].gotsig = 1; |
415 | |
687 | |
416 | if (!gotsig) |
688 | if (!gotsig) |
417 | { |
689 | { |
|
|
690 | int old_errno = errno; |
418 | gotsig = 1; |
691 | gotsig = 1; |
419 | write (sigpipe [1], &signum, 1); |
692 | write (sigpipe [1], &signum, 1); |
|
|
693 | errno = old_errno; |
420 | } |
694 | } |
|
|
695 | } |
|
|
696 | |
|
|
697 | void noinline |
|
|
698 | ev_feed_signal_event (EV_P_ int signum) |
|
|
699 | { |
|
|
700 | WL w; |
|
|
701 | |
|
|
702 | #if EV_MULTIPLICITY |
|
|
703 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
704 | #endif |
|
|
705 | |
|
|
706 | --signum; |
|
|
707 | |
|
|
708 | if (signum < 0 || signum >= signalmax) |
|
|
709 | return; |
|
|
710 | |
|
|
711 | signals [signum].gotsig = 0; |
|
|
712 | |
|
|
713 | for (w = signals [signum].head; w; w = w->next) |
|
|
714 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
421 | } |
715 | } |
422 | |
716 | |
423 | static void |
717 | static void |
424 | sigcb (struct ev_io *iow, int revents) |
718 | sigcb (EV_P_ ev_io *iow, int revents) |
425 | { |
719 | { |
426 | struct ev_signal *w; |
|
|
427 | int signum; |
720 | int signum; |
428 | |
721 | |
429 | read (sigpipe [0], &revents, 1); |
722 | read (sigpipe [0], &revents, 1); |
430 | gotsig = 0; |
723 | gotsig = 0; |
431 | |
724 | |
432 | for (signum = signalmax; signum--; ) |
725 | for (signum = signalmax; signum--; ) |
433 | if (signals [signum].gotsig) |
726 | if (signals [signum].gotsig) |
|
|
727 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
728 | } |
|
|
729 | |
|
|
730 | void inline_size |
|
|
731 | fd_intern (int fd) |
|
|
732 | { |
|
|
733 | #ifdef _WIN32 |
|
|
734 | int arg = 1; |
|
|
735 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
736 | #else |
|
|
737 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
738 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
739 | #endif |
|
|
740 | } |
|
|
741 | |
|
|
742 | static void noinline |
|
|
743 | siginit (EV_P) |
|
|
744 | { |
|
|
745 | fd_intern (sigpipe [0]); |
|
|
746 | fd_intern (sigpipe [1]); |
|
|
747 | |
|
|
748 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
749 | ev_io_start (EV_A_ &sigev); |
|
|
750 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
751 | } |
|
|
752 | |
|
|
753 | /*****************************************************************************/ |
|
|
754 | |
|
|
755 | static ev_child *childs [EV_PID_HASHSIZE]; |
|
|
756 | |
|
|
757 | #ifndef _WIN32 |
|
|
758 | |
|
|
759 | static ev_signal childev; |
|
|
760 | |
|
|
761 | void inline_speed |
|
|
762 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
763 | { |
|
|
764 | ev_child *w; |
|
|
765 | |
|
|
766 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
767 | if (w->pid == pid || !w->pid) |
434 | { |
768 | { |
435 | signals [signum].gotsig = 0; |
769 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
436 | |
770 | w->rpid = pid; |
437 | for (w = signals [signum].head; w; w = w->next) |
771 | w->rstatus = status; |
438 | event ((W)w, EV_SIGNAL); |
772 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
439 | } |
773 | } |
440 | } |
774 | } |
441 | |
|
|
442 | static void |
|
|
443 | siginit (void) |
|
|
444 | { |
|
|
445 | #ifndef WIN32 |
|
|
446 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
447 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
448 | |
|
|
449 | /* rather than sort out wether we really need nb, set it */ |
|
|
450 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
451 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
452 | #endif |
|
|
453 | |
|
|
454 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
455 | ev_io_start (&sigev); |
|
|
456 | } |
|
|
457 | |
|
|
458 | /*****************************************************************************/ |
|
|
459 | |
|
|
460 | static struct ev_idle **idles; |
|
|
461 | static int idlemax, idlecnt; |
|
|
462 | |
|
|
463 | static struct ev_prepare **prepares; |
|
|
464 | static int preparemax, preparecnt; |
|
|
465 | |
|
|
466 | static struct ev_check **checks; |
|
|
467 | static int checkmax, checkcnt; |
|
|
468 | |
|
|
469 | /*****************************************************************************/ |
|
|
470 | |
|
|
471 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
472 | static struct ev_signal childev; |
|
|
473 | |
|
|
474 | #ifndef WIN32 |
|
|
475 | |
775 | |
476 | #ifndef WCONTINUED |
776 | #ifndef WCONTINUED |
477 | # define WCONTINUED 0 |
777 | # define WCONTINUED 0 |
478 | #endif |
778 | #endif |
479 | |
779 | |
480 | static void |
780 | static void |
481 | childcb (struct ev_signal *sw, int revents) |
781 | childcb (EV_P_ ev_signal *sw, int revents) |
482 | { |
782 | { |
483 | struct ev_child *w; |
|
|
484 | int pid, status; |
783 | int pid, status; |
485 | |
784 | |
|
|
785 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
486 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
786 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
487 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
787 | if (!WCONTINUED |
488 | if (w->pid == pid || !w->pid) |
788 | || errno != EINVAL |
489 | { |
789 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
490 | w->rpid = pid; |
790 | return; |
491 | w->rstatus = status; |
791 | |
492 | event ((W)w, EV_CHILD); |
792 | /* make sure we are called again until all childs have been reaped */ |
493 | } |
793 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
794 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
795 | |
|
|
796 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
797 | if (EV_PID_HASHSIZE > 1) |
|
|
798 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
494 | } |
799 | } |
495 | |
800 | |
496 | #endif |
801 | #endif |
497 | |
802 | |
498 | /*****************************************************************************/ |
803 | /*****************************************************************************/ |
499 | |
804 | |
|
|
805 | #if EV_USE_PORT |
|
|
806 | # include "ev_port.c" |
|
|
807 | #endif |
500 | #if EV_USE_KQUEUE |
808 | #if EV_USE_KQUEUE |
501 | # include "ev_kqueue.c" |
809 | # include "ev_kqueue.c" |
502 | #endif |
810 | #endif |
503 | #if EV_USE_EPOLL |
811 | #if EV_USE_EPOLL |
504 | # include "ev_epoll.c" |
812 | # include "ev_epoll.c" |
… | |
… | |
520 | ev_version_minor (void) |
828 | ev_version_minor (void) |
521 | { |
829 | { |
522 | return EV_VERSION_MINOR; |
830 | return EV_VERSION_MINOR; |
523 | } |
831 | } |
524 | |
832 | |
525 | /* return true if we are running with elevated privileges and ignore env variables */ |
833 | /* return true if we are running with elevated privileges and should ignore env variables */ |
526 | static int |
834 | int inline_size |
527 | enable_secure () |
835 | enable_secure (void) |
528 | { |
836 | { |
|
|
837 | #ifdef _WIN32 |
|
|
838 | return 0; |
|
|
839 | #else |
529 | return getuid () != geteuid () |
840 | return getuid () != geteuid () |
530 | || getgid () != getegid (); |
841 | || getgid () != getegid (); |
|
|
842 | #endif |
531 | } |
843 | } |
532 | |
844 | |
533 | int ev_init (int methods) |
845 | unsigned int |
|
|
846 | ev_supported_backends (void) |
534 | { |
847 | { |
535 | if (!ev_method) |
848 | unsigned int flags = 0; |
|
|
849 | |
|
|
850 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
851 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
852 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
853 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
854 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
855 | |
|
|
856 | return flags; |
|
|
857 | } |
|
|
858 | |
|
|
859 | unsigned int |
|
|
860 | ev_recommended_backends (void) |
|
|
861 | { |
|
|
862 | unsigned int flags = ev_supported_backends (); |
|
|
863 | |
|
|
864 | #ifndef __NetBSD__ |
|
|
865 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
866 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
867 | flags &= ~EVBACKEND_KQUEUE; |
|
|
868 | #endif |
|
|
869 | #ifdef __APPLE__ |
|
|
870 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
871 | flags &= ~EVBACKEND_POLL; |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | return flags; |
|
|
875 | } |
|
|
876 | |
|
|
877 | unsigned int |
|
|
878 | ev_embeddable_backends (void) |
|
|
879 | { |
|
|
880 | return EVBACKEND_EPOLL |
|
|
881 | | EVBACKEND_KQUEUE |
|
|
882 | | EVBACKEND_PORT; |
|
|
883 | } |
|
|
884 | |
|
|
885 | unsigned int |
|
|
886 | ev_backend (EV_P) |
|
|
887 | { |
|
|
888 | return backend; |
|
|
889 | } |
|
|
890 | |
|
|
891 | static void noinline |
|
|
892 | loop_init (EV_P_ unsigned int flags) |
|
|
893 | { |
|
|
894 | if (!backend) |
536 | { |
895 | { |
537 | #if EV_USE_MONOTONIC |
896 | #if EV_USE_MONOTONIC |
538 | { |
897 | { |
539 | struct timespec ts; |
898 | struct timespec ts; |
540 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
899 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
541 | have_monotonic = 1; |
900 | have_monotonic = 1; |
542 | } |
901 | } |
543 | #endif |
902 | #endif |
544 | |
903 | |
545 | ev_now = ev_time (); |
904 | ev_rt_now = ev_time (); |
546 | now = get_clock (); |
905 | mn_now = get_clock (); |
547 | now_floor = now; |
906 | now_floor = mn_now; |
548 | diff = ev_now - now; |
907 | rtmn_diff = ev_rt_now - mn_now; |
549 | |
908 | |
550 | if (pipe (sigpipe)) |
909 | if (!(flags & EVFLAG_NOENV) |
551 | return 0; |
910 | && !enable_secure () |
552 | |
911 | && getenv ("LIBEV_FLAGS")) |
553 | if (methods == EVMETHOD_AUTO) |
|
|
554 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
|
|
555 | methods = atoi (getenv ("LIBEV_METHODS")); |
912 | flags = atoi (getenv ("LIBEV_FLAGS")); |
556 | else |
|
|
557 | methods = EVMETHOD_ANY; |
|
|
558 | |
913 | |
559 | ev_method = 0; |
914 | if (!(flags & 0x0000ffffUL)) |
|
|
915 | flags |= ev_recommended_backends (); |
|
|
916 | |
|
|
917 | backend = 0; |
|
|
918 | backend_fd = -1; |
|
|
919 | #if EV_USE_INOTIFY |
|
|
920 | fs_fd = -2; |
|
|
921 | #endif |
|
|
922 | |
|
|
923 | #if EV_USE_PORT |
|
|
924 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
925 | #endif |
560 | #if EV_USE_KQUEUE |
926 | #if EV_USE_KQUEUE |
561 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
927 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
562 | #endif |
928 | #endif |
563 | #if EV_USE_EPOLL |
929 | #if EV_USE_EPOLL |
564 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
930 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
565 | #endif |
931 | #endif |
566 | #if EV_USE_POLL |
932 | #if EV_USE_POLL |
567 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
933 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
568 | #endif |
934 | #endif |
569 | #if EV_USE_SELECT |
935 | #if EV_USE_SELECT |
570 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
936 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
571 | #endif |
937 | #endif |
572 | |
938 | |
573 | if (ev_method) |
939 | ev_init (&sigev, sigcb); |
|
|
940 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
941 | } |
|
|
942 | } |
|
|
943 | |
|
|
944 | static void noinline |
|
|
945 | loop_destroy (EV_P) |
|
|
946 | { |
|
|
947 | int i; |
|
|
948 | |
|
|
949 | #if EV_USE_INOTIFY |
|
|
950 | if (fs_fd >= 0) |
|
|
951 | close (fs_fd); |
|
|
952 | #endif |
|
|
953 | |
|
|
954 | if (backend_fd >= 0) |
|
|
955 | close (backend_fd); |
|
|
956 | |
|
|
957 | #if EV_USE_PORT |
|
|
958 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
959 | #endif |
|
|
960 | #if EV_USE_KQUEUE |
|
|
961 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
962 | #endif |
|
|
963 | #if EV_USE_EPOLL |
|
|
964 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
965 | #endif |
|
|
966 | #if EV_USE_POLL |
|
|
967 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
968 | #endif |
|
|
969 | #if EV_USE_SELECT |
|
|
970 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
971 | #endif |
|
|
972 | |
|
|
973 | for (i = NUMPRI; i--; ) |
|
|
974 | array_free (pending, [i]); |
|
|
975 | |
|
|
976 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
977 | array_free (fdchange, EMPTY0); |
|
|
978 | array_free (timer, EMPTY0); |
|
|
979 | #if EV_PERIODIC_ENABLE |
|
|
980 | array_free (periodic, EMPTY0); |
|
|
981 | #endif |
|
|
982 | array_free (idle, EMPTY0); |
|
|
983 | array_free (prepare, EMPTY0); |
|
|
984 | array_free (check, EMPTY0); |
|
|
985 | |
|
|
986 | backend = 0; |
|
|
987 | } |
|
|
988 | |
|
|
989 | void inline_size infy_fork (EV_P); |
|
|
990 | |
|
|
991 | void inline_size |
|
|
992 | loop_fork (EV_P) |
|
|
993 | { |
|
|
994 | #if EV_USE_PORT |
|
|
995 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
996 | #endif |
|
|
997 | #if EV_USE_KQUEUE |
|
|
998 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
999 | #endif |
|
|
1000 | #if EV_USE_EPOLL |
|
|
1001 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1002 | #endif |
|
|
1003 | #if EV_USE_INOTIFY |
|
|
1004 | infy_fork (EV_A); |
|
|
1005 | #endif |
|
|
1006 | |
|
|
1007 | if (ev_is_active (&sigev)) |
|
|
1008 | { |
|
|
1009 | /* default loop */ |
|
|
1010 | |
|
|
1011 | ev_ref (EV_A); |
|
|
1012 | ev_io_stop (EV_A_ &sigev); |
|
|
1013 | close (sigpipe [0]); |
|
|
1014 | close (sigpipe [1]); |
|
|
1015 | |
|
|
1016 | while (pipe (sigpipe)) |
|
|
1017 | syserr ("(libev) error creating pipe"); |
|
|
1018 | |
|
|
1019 | siginit (EV_A); |
|
|
1020 | } |
|
|
1021 | |
|
|
1022 | postfork = 0; |
|
|
1023 | } |
|
|
1024 | |
|
|
1025 | #if EV_MULTIPLICITY |
|
|
1026 | struct ev_loop * |
|
|
1027 | ev_loop_new (unsigned int flags) |
|
|
1028 | { |
|
|
1029 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1030 | |
|
|
1031 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1032 | |
|
|
1033 | loop_init (EV_A_ flags); |
|
|
1034 | |
|
|
1035 | if (ev_backend (EV_A)) |
|
|
1036 | return loop; |
|
|
1037 | |
|
|
1038 | return 0; |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | void |
|
|
1042 | ev_loop_destroy (EV_P) |
|
|
1043 | { |
|
|
1044 | loop_destroy (EV_A); |
|
|
1045 | ev_free (loop); |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | void |
|
|
1049 | ev_loop_fork (EV_P) |
|
|
1050 | { |
|
|
1051 | postfork = 1; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | #endif |
|
|
1055 | |
|
|
1056 | #if EV_MULTIPLICITY |
|
|
1057 | struct ev_loop * |
|
|
1058 | ev_default_loop_init (unsigned int flags) |
|
|
1059 | #else |
|
|
1060 | int |
|
|
1061 | ev_default_loop (unsigned int flags) |
|
|
1062 | #endif |
|
|
1063 | { |
|
|
1064 | if (sigpipe [0] == sigpipe [1]) |
|
|
1065 | if (pipe (sigpipe)) |
|
|
1066 | return 0; |
|
|
1067 | |
|
|
1068 | if (!ev_default_loop_ptr) |
|
|
1069 | { |
|
|
1070 | #if EV_MULTIPLICITY |
|
|
1071 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1072 | #else |
|
|
1073 | ev_default_loop_ptr = 1; |
|
|
1074 | #endif |
|
|
1075 | |
|
|
1076 | loop_init (EV_A_ flags); |
|
|
1077 | |
|
|
1078 | if (ev_backend (EV_A)) |
574 | { |
1079 | { |
575 | ev_watcher_init (&sigev, sigcb); |
|
|
576 | siginit (); |
1080 | siginit (EV_A); |
577 | |
1081 | |
578 | #ifndef WIN32 |
1082 | #ifndef _WIN32 |
579 | ev_signal_init (&childev, childcb, SIGCHLD); |
1083 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1084 | ev_set_priority (&childev, EV_MAXPRI); |
580 | ev_signal_start (&childev); |
1085 | ev_signal_start (EV_A_ &childev); |
|
|
1086 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
581 | #endif |
1087 | #endif |
582 | } |
1088 | } |
|
|
1089 | else |
|
|
1090 | ev_default_loop_ptr = 0; |
583 | } |
1091 | } |
584 | |
1092 | |
585 | return ev_method; |
1093 | return ev_default_loop_ptr; |
|
|
1094 | } |
|
|
1095 | |
|
|
1096 | void |
|
|
1097 | ev_default_destroy (void) |
|
|
1098 | { |
|
|
1099 | #if EV_MULTIPLICITY |
|
|
1100 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1101 | #endif |
|
|
1102 | |
|
|
1103 | #ifndef _WIN32 |
|
|
1104 | ev_ref (EV_A); /* child watcher */ |
|
|
1105 | ev_signal_stop (EV_A_ &childev); |
|
|
1106 | #endif |
|
|
1107 | |
|
|
1108 | ev_ref (EV_A); /* signal watcher */ |
|
|
1109 | ev_io_stop (EV_A_ &sigev); |
|
|
1110 | |
|
|
1111 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1112 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1113 | |
|
|
1114 | loop_destroy (EV_A); |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | void |
|
|
1118 | ev_default_fork (void) |
|
|
1119 | { |
|
|
1120 | #if EV_MULTIPLICITY |
|
|
1121 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1122 | #endif |
|
|
1123 | |
|
|
1124 | if (backend) |
|
|
1125 | postfork = 1; |
586 | } |
1126 | } |
587 | |
1127 | |
588 | /*****************************************************************************/ |
1128 | /*****************************************************************************/ |
589 | |
1129 | |
590 | void |
1130 | int inline_size |
591 | ev_fork_prepare (void) |
1131 | any_pending (EV_P) |
592 | { |
1132 | { |
593 | /* nop */ |
1133 | int pri; |
594 | } |
|
|
595 | |
1134 | |
596 | void |
1135 | for (pri = NUMPRI; pri--; ) |
597 | ev_fork_parent (void) |
1136 | if (pendingcnt [pri]) |
598 | { |
1137 | return 1; |
599 | /* nop */ |
|
|
600 | } |
|
|
601 | |
1138 | |
602 | void |
1139 | return 0; |
603 | ev_fork_child (void) |
|
|
604 | { |
|
|
605 | #if EV_USE_EPOLL |
|
|
606 | if (ev_method == EVMETHOD_EPOLL) |
|
|
607 | epoll_postfork_child (); |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | ev_io_stop (&sigev); |
|
|
611 | close (sigpipe [0]); |
|
|
612 | close (sigpipe [1]); |
|
|
613 | pipe (sigpipe); |
|
|
614 | siginit (); |
|
|
615 | } |
1140 | } |
616 | |
1141 | |
617 | /*****************************************************************************/ |
1142 | void inline_speed |
618 | |
|
|
619 | static void |
|
|
620 | call_pending (void) |
1143 | call_pending (EV_P) |
621 | { |
1144 | { |
622 | int pri; |
1145 | int pri; |
623 | |
1146 | |
624 | for (pri = NUMPRI; pri--; ) |
1147 | for (pri = NUMPRI; pri--; ) |
625 | while (pendingcnt [pri]) |
1148 | while (pendingcnt [pri]) |
626 | { |
1149 | { |
627 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1150 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
628 | |
1151 | |
629 | if (p->w) |
1152 | if (expect_true (p->w)) |
630 | { |
1153 | { |
|
|
1154 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1155 | |
631 | p->w->pending = 0; |
1156 | p->w->pending = 0; |
632 | p->w->cb (p->w, p->events); |
1157 | EV_CB_INVOKE (p->w, p->events); |
633 | } |
1158 | } |
634 | } |
1159 | } |
635 | } |
1160 | } |
636 | |
1161 | |
637 | static void |
1162 | void inline_size |
638 | timers_reify (void) |
1163 | timers_reify (EV_P) |
639 | { |
1164 | { |
640 | while (timercnt && timers [0]->at <= now) |
1165 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
641 | { |
1166 | { |
642 | struct ev_timer *w = timers [0]; |
1167 | ev_timer *w = timers [0]; |
|
|
1168 | |
|
|
1169 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
643 | |
1170 | |
644 | /* first reschedule or stop timer */ |
1171 | /* first reschedule or stop timer */ |
645 | if (w->repeat) |
1172 | if (w->repeat) |
646 | { |
1173 | { |
647 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1174 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1175 | |
648 | w->at = now + w->repeat; |
1176 | ((WT)w)->at += w->repeat; |
|
|
1177 | if (((WT)w)->at < mn_now) |
|
|
1178 | ((WT)w)->at = mn_now; |
|
|
1179 | |
649 | downheap ((WT *)timers, timercnt, 0); |
1180 | downheap ((WT *)timers, timercnt, 0); |
650 | } |
1181 | } |
651 | else |
1182 | else |
652 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1183 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
653 | |
1184 | |
654 | event ((W)w, EV_TIMEOUT); |
1185 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
655 | } |
1186 | } |
656 | } |
1187 | } |
657 | |
1188 | |
658 | static void |
1189 | #if EV_PERIODIC_ENABLE |
|
|
1190 | void inline_size |
659 | periodics_reify (void) |
1191 | periodics_reify (EV_P) |
660 | { |
1192 | { |
661 | while (periodiccnt && periodics [0]->at <= ev_now) |
1193 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
662 | { |
1194 | { |
663 | struct ev_periodic *w = periodics [0]; |
1195 | ev_periodic *w = periodics [0]; |
|
|
1196 | |
|
|
1197 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
664 | |
1198 | |
665 | /* first reschedule or stop timer */ |
1199 | /* first reschedule or stop timer */ |
666 | if (w->interval) |
1200 | if (w->reschedule_cb) |
667 | { |
1201 | { |
|
|
1202 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1203 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1204 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1205 | } |
|
|
1206 | else if (w->interval) |
|
|
1207 | { |
668 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1208 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
669 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1209 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
670 | downheap ((WT *)periodics, periodiccnt, 0); |
1210 | downheap ((WT *)periodics, periodiccnt, 0); |
671 | } |
1211 | } |
672 | else |
1212 | else |
673 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1213 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
674 | |
1214 | |
675 | event ((W)w, EV_PERIODIC); |
1215 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
676 | } |
1216 | } |
677 | } |
1217 | } |
678 | |
1218 | |
679 | static void |
1219 | static void noinline |
680 | periodics_reschedule (ev_tstamp diff) |
1220 | periodics_reschedule (EV_P) |
681 | { |
1221 | { |
682 | int i; |
1222 | int i; |
683 | |
1223 | |
684 | /* adjust periodics after time jump */ |
1224 | /* adjust periodics after time jump */ |
685 | for (i = 0; i < periodiccnt; ++i) |
1225 | for (i = 0; i < periodiccnt; ++i) |
686 | { |
1226 | { |
687 | struct ev_periodic *w = periodics [i]; |
1227 | ev_periodic *w = periodics [i]; |
688 | |
1228 | |
|
|
1229 | if (w->reschedule_cb) |
|
|
1230 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
689 | if (w->interval) |
1231 | else if (w->interval) |
690 | { |
|
|
691 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1232 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
692 | |
|
|
693 | if (fabs (diff) >= 1e-4) |
|
|
694 | { |
|
|
695 | ev_periodic_stop (w); |
|
|
696 | ev_periodic_start (w); |
|
|
697 | |
|
|
698 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
699 | } |
|
|
700 | } |
|
|
701 | } |
1233 | } |
702 | } |
|
|
703 | |
1234 | |
704 | static int |
1235 | /* now rebuild the heap */ |
|
|
1236 | for (i = periodiccnt >> 1; i--; ) |
|
|
1237 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1238 | } |
|
|
1239 | #endif |
|
|
1240 | |
|
|
1241 | int inline_size |
705 | time_update_monotonic (void) |
1242 | time_update_monotonic (EV_P) |
706 | { |
1243 | { |
707 | now = get_clock (); |
1244 | mn_now = get_clock (); |
708 | |
1245 | |
709 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
1246 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
710 | { |
1247 | { |
711 | ev_now = now + diff; |
1248 | ev_rt_now = rtmn_diff + mn_now; |
712 | return 0; |
1249 | return 0; |
713 | } |
1250 | } |
714 | else |
1251 | else |
715 | { |
1252 | { |
716 | now_floor = now; |
1253 | now_floor = mn_now; |
717 | ev_now = ev_time (); |
1254 | ev_rt_now = ev_time (); |
718 | return 1; |
1255 | return 1; |
719 | } |
1256 | } |
720 | } |
1257 | } |
721 | |
1258 | |
722 | static void |
1259 | void inline_size |
723 | time_update (void) |
1260 | time_update (EV_P) |
724 | { |
1261 | { |
725 | int i; |
1262 | int i; |
726 | |
1263 | |
727 | #if EV_USE_MONOTONIC |
1264 | #if EV_USE_MONOTONIC |
728 | if (expect_true (have_monotonic)) |
1265 | if (expect_true (have_monotonic)) |
729 | { |
1266 | { |
730 | if (time_update_monotonic ()) |
1267 | if (time_update_monotonic (EV_A)) |
731 | { |
1268 | { |
732 | ev_tstamp odiff = diff; |
1269 | ev_tstamp odiff = rtmn_diff; |
733 | |
1270 | |
734 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1271 | /* loop a few times, before making important decisions. |
|
|
1272 | * on the choice of "4": one iteration isn't enough, |
|
|
1273 | * in case we get preempted during the calls to |
|
|
1274 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1275 | * to succeed in that case, though. and looping a few more times |
|
|
1276 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1277 | * in the unlikely event of having been preempted here. |
|
|
1278 | */ |
|
|
1279 | for (i = 4; --i; ) |
735 | { |
1280 | { |
736 | diff = ev_now - now; |
1281 | rtmn_diff = ev_rt_now - mn_now; |
737 | |
1282 | |
738 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1283 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
739 | return; /* all is well */ |
1284 | return; /* all is well */ |
740 | |
1285 | |
741 | ev_now = ev_time (); |
1286 | ev_rt_now = ev_time (); |
742 | now = get_clock (); |
1287 | mn_now = get_clock (); |
743 | now_floor = now; |
1288 | now_floor = mn_now; |
744 | } |
1289 | } |
745 | |
1290 | |
|
|
1291 | # if EV_PERIODIC_ENABLE |
746 | periodics_reschedule (diff - odiff); |
1292 | periodics_reschedule (EV_A); |
|
|
1293 | # endif |
747 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1294 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1295 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
748 | } |
1296 | } |
749 | } |
1297 | } |
750 | else |
1298 | else |
751 | #endif |
1299 | #endif |
752 | { |
1300 | { |
753 | ev_now = ev_time (); |
1301 | ev_rt_now = ev_time (); |
754 | |
1302 | |
755 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1303 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
756 | { |
1304 | { |
|
|
1305 | #if EV_PERIODIC_ENABLE |
757 | periodics_reschedule (ev_now - now); |
1306 | periodics_reschedule (EV_A); |
|
|
1307 | #endif |
758 | |
1308 | |
759 | /* adjust timers. this is easy, as the offset is the same for all */ |
1309 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
760 | for (i = 0; i < timercnt; ++i) |
1310 | for (i = 0; i < timercnt; ++i) |
761 | timers [i]->at += diff; |
1311 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
762 | } |
1312 | } |
763 | |
1313 | |
764 | now = ev_now; |
1314 | mn_now = ev_rt_now; |
765 | } |
1315 | } |
766 | } |
1316 | } |
767 | |
1317 | |
768 | int ev_loop_done; |
1318 | void |
|
|
1319 | ev_ref (EV_P) |
|
|
1320 | { |
|
|
1321 | ++activecnt; |
|
|
1322 | } |
769 | |
1323 | |
|
|
1324 | void |
|
|
1325 | ev_unref (EV_P) |
|
|
1326 | { |
|
|
1327 | --activecnt; |
|
|
1328 | } |
|
|
1329 | |
|
|
1330 | static int loop_done; |
|
|
1331 | |
|
|
1332 | void |
770 | void ev_loop (int flags) |
1333 | ev_loop (EV_P_ int flags) |
771 | { |
1334 | { |
772 | double block; |
|
|
773 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1335 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1336 | ? EVUNLOOP_ONE |
|
|
1337 | : EVUNLOOP_CANCEL; |
774 | |
1338 | |
775 | do |
1339 | while (activecnt) |
776 | { |
1340 | { |
|
|
1341 | #if EV_FORK_ENABLE |
|
|
1342 | /* we might have forked, so queue fork handlers */ |
|
|
1343 | if (expect_false (postfork)) |
|
|
1344 | if (forkcnt) |
|
|
1345 | { |
|
|
1346 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1347 | call_pending (EV_A); |
|
|
1348 | } |
|
|
1349 | #endif |
|
|
1350 | |
777 | /* queue check watchers (and execute them) */ |
1351 | /* queue check watchers (and execute them) */ |
778 | if (expect_false (preparecnt)) |
1352 | if (expect_false (preparecnt)) |
779 | { |
1353 | { |
780 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1354 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
781 | call_pending (); |
1355 | call_pending (EV_A); |
782 | } |
1356 | } |
783 | |
1357 | |
|
|
1358 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1359 | if (expect_false (postfork)) |
|
|
1360 | loop_fork (EV_A); |
|
|
1361 | |
784 | /* update fd-related kernel structures */ |
1362 | /* update fd-related kernel structures */ |
785 | fd_reify (); |
1363 | fd_reify (EV_A); |
786 | |
1364 | |
787 | /* calculate blocking time */ |
1365 | /* calculate blocking time */ |
|
|
1366 | { |
|
|
1367 | ev_tstamp block; |
788 | |
1368 | |
789 | /* we only need this for !monotonic clockor timers, but as we basically |
1369 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
790 | always have timers, we just calculate it always */ |
1370 | block = 0.; /* do not block at all */ |
|
|
1371 | else |
|
|
1372 | { |
|
|
1373 | /* update time to cancel out callback processing overhead */ |
791 | #if EV_USE_MONOTONIC |
1374 | #if EV_USE_MONOTONIC |
792 | if (expect_true (have_monotonic)) |
1375 | if (expect_true (have_monotonic)) |
793 | time_update_monotonic (); |
1376 | time_update_monotonic (EV_A); |
794 | else |
1377 | else |
795 | #endif |
1378 | #endif |
796 | { |
1379 | { |
797 | ev_now = ev_time (); |
1380 | ev_rt_now = ev_time (); |
798 | now = ev_now; |
1381 | mn_now = ev_rt_now; |
799 | } |
1382 | } |
800 | |
1383 | |
801 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
802 | block = 0.; |
|
|
803 | else |
|
|
804 | { |
|
|
805 | block = MAX_BLOCKTIME; |
1384 | block = MAX_BLOCKTIME; |
806 | |
1385 | |
807 | if (timercnt) |
1386 | if (timercnt) |
808 | { |
1387 | { |
809 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1388 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
810 | if (block > to) block = to; |
1389 | if (block > to) block = to; |
811 | } |
1390 | } |
812 | |
1391 | |
|
|
1392 | #if EV_PERIODIC_ENABLE |
813 | if (periodiccnt) |
1393 | if (periodiccnt) |
814 | { |
1394 | { |
815 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1395 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
816 | if (block > to) block = to; |
1396 | if (block > to) block = to; |
817 | } |
1397 | } |
|
|
1398 | #endif |
818 | |
1399 | |
819 | if (block < 0.) block = 0.; |
1400 | if (expect_false (block < 0.)) block = 0.; |
820 | } |
1401 | } |
821 | |
1402 | |
822 | method_poll (block); |
1403 | backend_poll (EV_A_ block); |
|
|
1404 | } |
823 | |
1405 | |
824 | /* update ev_now, do magic */ |
1406 | /* update ev_rt_now, do magic */ |
825 | time_update (); |
1407 | time_update (EV_A); |
826 | |
1408 | |
827 | /* queue pending timers and reschedule them */ |
1409 | /* queue pending timers and reschedule them */ |
828 | timers_reify (); /* relative timers called last */ |
1410 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1411 | #if EV_PERIODIC_ENABLE |
829 | periodics_reify (); /* absolute timers called first */ |
1412 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1413 | #endif |
830 | |
1414 | |
831 | /* queue idle watchers unless io or timers are pending */ |
1415 | /* queue idle watchers unless other events are pending */ |
832 | if (!pendingcnt) |
1416 | if (idlecnt && !any_pending (EV_A)) |
833 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1417 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
834 | |
1418 | |
835 | /* queue check watchers, to be executed first */ |
1419 | /* queue check watchers, to be executed first */ |
836 | if (checkcnt) |
1420 | if (expect_false (checkcnt)) |
837 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1421 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
838 | |
1422 | |
839 | call_pending (); |
1423 | call_pending (EV_A); |
840 | } |
|
|
841 | while (!ev_loop_done); |
|
|
842 | |
1424 | |
843 | if (ev_loop_done != 2) |
1425 | if (expect_false (loop_done)) |
|
|
1426 | break; |
|
|
1427 | } |
|
|
1428 | |
|
|
1429 | if (loop_done == EVUNLOOP_ONE) |
|
|
1430 | loop_done = EVUNLOOP_CANCEL; |
|
|
1431 | } |
|
|
1432 | |
|
|
1433 | void |
|
|
1434 | ev_unloop (EV_P_ int how) |
|
|
1435 | { |
844 | ev_loop_done = 0; |
1436 | loop_done = how; |
845 | } |
1437 | } |
846 | |
1438 | |
847 | /*****************************************************************************/ |
1439 | /*****************************************************************************/ |
848 | |
1440 | |
849 | static void |
1441 | void inline_size |
850 | wlist_add (WL *head, WL elem) |
1442 | wlist_add (WL *head, WL elem) |
851 | { |
1443 | { |
852 | elem->next = *head; |
1444 | elem->next = *head; |
853 | *head = elem; |
1445 | *head = elem; |
854 | } |
1446 | } |
855 | |
1447 | |
856 | static void |
1448 | void inline_size |
857 | wlist_del (WL *head, WL elem) |
1449 | wlist_del (WL *head, WL elem) |
858 | { |
1450 | { |
859 | while (*head) |
1451 | while (*head) |
860 | { |
1452 | { |
861 | if (*head == elem) |
1453 | if (*head == elem) |
… | |
… | |
866 | |
1458 | |
867 | head = &(*head)->next; |
1459 | head = &(*head)->next; |
868 | } |
1460 | } |
869 | } |
1461 | } |
870 | |
1462 | |
871 | static void |
1463 | void inline_speed |
872 | ev_clear_pending (W w) |
1464 | ev_clear_pending (EV_P_ W w) |
873 | { |
1465 | { |
874 | if (w->pending) |
1466 | if (w->pending) |
875 | { |
1467 | { |
876 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1468 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
877 | w->pending = 0; |
1469 | w->pending = 0; |
878 | } |
1470 | } |
879 | } |
1471 | } |
880 | |
1472 | |
881 | static void |
1473 | void inline_speed |
882 | ev_start (W w, int active) |
1474 | ev_start (EV_P_ W w, int active) |
883 | { |
1475 | { |
884 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1476 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
885 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1477 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
886 | |
1478 | |
887 | w->active = active; |
1479 | w->active = active; |
|
|
1480 | ev_ref (EV_A); |
888 | } |
1481 | } |
889 | |
1482 | |
890 | static void |
1483 | void inline_size |
891 | ev_stop (W w) |
1484 | ev_stop (EV_P_ W w) |
892 | { |
1485 | { |
|
|
1486 | ev_unref (EV_A); |
893 | w->active = 0; |
1487 | w->active = 0; |
894 | } |
1488 | } |
895 | |
1489 | |
896 | /*****************************************************************************/ |
1490 | /*****************************************************************************/ |
897 | |
1491 | |
898 | void |
1492 | void |
899 | ev_io_start (struct ev_io *w) |
1493 | ev_io_start (EV_P_ ev_io *w) |
900 | { |
1494 | { |
901 | int fd = w->fd; |
1495 | int fd = w->fd; |
902 | |
1496 | |
903 | if (ev_is_active (w)) |
1497 | if (expect_false (ev_is_active (w))) |
904 | return; |
1498 | return; |
905 | |
1499 | |
906 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1500 | assert (("ev_io_start called with negative fd", fd >= 0)); |
907 | |
1501 | |
908 | ev_start ((W)w, 1); |
1502 | ev_start (EV_A_ (W)w, 1); |
909 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1503 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
910 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1504 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
911 | |
1505 | |
912 | fd_change (fd); |
1506 | fd_change (EV_A_ fd); |
913 | } |
1507 | } |
914 | |
1508 | |
915 | void |
1509 | void |
916 | ev_io_stop (struct ev_io *w) |
1510 | ev_io_stop (EV_P_ ev_io *w) |
917 | { |
1511 | { |
918 | ev_clear_pending ((W)w); |
1512 | ev_clear_pending (EV_A_ (W)w); |
919 | if (!ev_is_active (w)) |
1513 | if (expect_false (!ev_is_active (w))) |
920 | return; |
1514 | return; |
|
|
1515 | |
|
|
1516 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
921 | |
1517 | |
922 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1518 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
923 | ev_stop ((W)w); |
1519 | ev_stop (EV_A_ (W)w); |
924 | |
1520 | |
925 | fd_change (w->fd); |
1521 | fd_change (EV_A_ w->fd); |
926 | } |
1522 | } |
927 | |
1523 | |
928 | void |
1524 | void |
929 | ev_timer_start (struct ev_timer *w) |
1525 | ev_timer_start (EV_P_ ev_timer *w) |
930 | { |
1526 | { |
931 | if (ev_is_active (w)) |
1527 | if (expect_false (ev_is_active (w))) |
932 | return; |
1528 | return; |
933 | |
1529 | |
934 | w->at += now; |
1530 | ((WT)w)->at += mn_now; |
935 | |
1531 | |
936 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1532 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
937 | |
1533 | |
938 | ev_start ((W)w, ++timercnt); |
1534 | ev_start (EV_A_ (W)w, ++timercnt); |
939 | array_needsize (timers, timermax, timercnt, ); |
1535 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
940 | timers [timercnt - 1] = w; |
1536 | timers [timercnt - 1] = w; |
941 | upheap ((WT *)timers, timercnt - 1); |
1537 | upheap ((WT *)timers, timercnt - 1); |
942 | } |
|
|
943 | |
1538 | |
|
|
1539 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1540 | } |
|
|
1541 | |
944 | void |
1542 | void |
945 | ev_timer_stop (struct ev_timer *w) |
1543 | ev_timer_stop (EV_P_ ev_timer *w) |
946 | { |
1544 | { |
947 | ev_clear_pending ((W)w); |
1545 | ev_clear_pending (EV_A_ (W)w); |
948 | if (!ev_is_active (w)) |
1546 | if (expect_false (!ev_is_active (w))) |
949 | return; |
1547 | return; |
950 | |
1548 | |
951 | if (w->active < timercnt--) |
1549 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1550 | |
|
|
1551 | { |
|
|
1552 | int active = ((W)w)->active; |
|
|
1553 | |
|
|
1554 | if (expect_true (--active < --timercnt)) |
952 | { |
1555 | { |
953 | timers [w->active - 1] = timers [timercnt]; |
1556 | timers [active] = timers [timercnt]; |
954 | downheap ((WT *)timers, timercnt, w->active - 1); |
1557 | adjustheap ((WT *)timers, timercnt, active); |
955 | } |
1558 | } |
|
|
1559 | } |
956 | |
1560 | |
957 | w->at = w->repeat; |
1561 | ((WT)w)->at -= mn_now; |
958 | |
1562 | |
959 | ev_stop ((W)w); |
1563 | ev_stop (EV_A_ (W)w); |
960 | } |
1564 | } |
961 | |
1565 | |
962 | void |
1566 | void |
963 | ev_timer_again (struct ev_timer *w) |
1567 | ev_timer_again (EV_P_ ev_timer *w) |
964 | { |
1568 | { |
965 | if (ev_is_active (w)) |
1569 | if (ev_is_active (w)) |
966 | { |
1570 | { |
967 | if (w->repeat) |
1571 | if (w->repeat) |
968 | { |
1572 | { |
969 | w->at = now + w->repeat; |
1573 | ((WT)w)->at = mn_now + w->repeat; |
970 | downheap ((WT *)timers, timercnt, w->active - 1); |
1574 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
971 | } |
1575 | } |
972 | else |
1576 | else |
973 | ev_timer_stop (w); |
1577 | ev_timer_stop (EV_A_ w); |
974 | } |
1578 | } |
975 | else if (w->repeat) |
1579 | else if (w->repeat) |
|
|
1580 | { |
|
|
1581 | w->at = w->repeat; |
976 | ev_timer_start (w); |
1582 | ev_timer_start (EV_A_ w); |
|
|
1583 | } |
977 | } |
1584 | } |
978 | |
1585 | |
|
|
1586 | #if EV_PERIODIC_ENABLE |
979 | void |
1587 | void |
980 | ev_periodic_start (struct ev_periodic *w) |
1588 | ev_periodic_start (EV_P_ ev_periodic *w) |
981 | { |
1589 | { |
982 | if (ev_is_active (w)) |
1590 | if (expect_false (ev_is_active (w))) |
983 | return; |
1591 | return; |
984 | |
1592 | |
|
|
1593 | if (w->reschedule_cb) |
|
|
1594 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1595 | else if (w->interval) |
|
|
1596 | { |
985 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1597 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
986 | |
|
|
987 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1598 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
988 | if (w->interval) |
|
|
989 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1599 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1600 | } |
990 | |
1601 | |
991 | ev_start ((W)w, ++periodiccnt); |
1602 | ev_start (EV_A_ (W)w, ++periodiccnt); |
992 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1603 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
993 | periodics [periodiccnt - 1] = w; |
1604 | periodics [periodiccnt - 1] = w; |
994 | upheap ((WT *)periodics, periodiccnt - 1); |
1605 | upheap ((WT *)periodics, periodiccnt - 1); |
995 | } |
|
|
996 | |
1606 | |
|
|
1607 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1608 | } |
|
|
1609 | |
997 | void |
1610 | void |
998 | ev_periodic_stop (struct ev_periodic *w) |
1611 | ev_periodic_stop (EV_P_ ev_periodic *w) |
999 | { |
1612 | { |
1000 | ev_clear_pending ((W)w); |
1613 | ev_clear_pending (EV_A_ (W)w); |
1001 | if (!ev_is_active (w)) |
1614 | if (expect_false (!ev_is_active (w))) |
1002 | return; |
1615 | return; |
1003 | |
1616 | |
1004 | if (w->active < periodiccnt--) |
1617 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1618 | |
|
|
1619 | { |
|
|
1620 | int active = ((W)w)->active; |
|
|
1621 | |
|
|
1622 | if (expect_true (--active < --periodiccnt)) |
1005 | { |
1623 | { |
1006 | periodics [w->active - 1] = periodics [periodiccnt]; |
1624 | periodics [active] = periodics [periodiccnt]; |
1007 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1625 | adjustheap ((WT *)periodics, periodiccnt, active); |
1008 | } |
1626 | } |
|
|
1627 | } |
1009 | |
1628 | |
1010 | ev_stop ((W)w); |
1629 | ev_stop (EV_A_ (W)w); |
1011 | } |
1630 | } |
1012 | |
1631 | |
1013 | void |
1632 | void |
|
|
1633 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1634 | { |
|
|
1635 | /* TODO: use adjustheap and recalculation */ |
|
|
1636 | ev_periodic_stop (EV_A_ w); |
|
|
1637 | ev_periodic_start (EV_A_ w); |
|
|
1638 | } |
|
|
1639 | #endif |
|
|
1640 | |
|
|
1641 | #ifndef SA_RESTART |
|
|
1642 | # define SA_RESTART 0 |
|
|
1643 | #endif |
|
|
1644 | |
|
|
1645 | void |
1014 | ev_signal_start (struct ev_signal *w) |
1646 | ev_signal_start (EV_P_ ev_signal *w) |
1015 | { |
1647 | { |
|
|
1648 | #if EV_MULTIPLICITY |
|
|
1649 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1650 | #endif |
1016 | if (ev_is_active (w)) |
1651 | if (expect_false (ev_is_active (w))) |
1017 | return; |
1652 | return; |
1018 | |
1653 | |
1019 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1654 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1020 | |
1655 | |
1021 | ev_start ((W)w, 1); |
1656 | ev_start (EV_A_ (W)w, 1); |
1022 | array_needsize (signals, signalmax, w->signum, signals_init); |
1657 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1023 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1658 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1024 | |
1659 | |
1025 | if (!w->next) |
1660 | if (!((WL)w)->next) |
1026 | { |
1661 | { |
|
|
1662 | #if _WIN32 |
|
|
1663 | signal (w->signum, sighandler); |
|
|
1664 | #else |
1027 | struct sigaction sa; |
1665 | struct sigaction sa; |
1028 | sa.sa_handler = sighandler; |
1666 | sa.sa_handler = sighandler; |
1029 | sigfillset (&sa.sa_mask); |
1667 | sigfillset (&sa.sa_mask); |
1030 | sa.sa_flags = 0; |
1668 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1031 | sigaction (w->signum, &sa, 0); |
1669 | sigaction (w->signum, &sa, 0); |
|
|
1670 | #endif |
1032 | } |
1671 | } |
1033 | } |
1672 | } |
1034 | |
1673 | |
1035 | void |
1674 | void |
1036 | ev_signal_stop (struct ev_signal *w) |
1675 | ev_signal_stop (EV_P_ ev_signal *w) |
1037 | { |
1676 | { |
1038 | ev_clear_pending ((W)w); |
1677 | ev_clear_pending (EV_A_ (W)w); |
1039 | if (!ev_is_active (w)) |
1678 | if (expect_false (!ev_is_active (w))) |
1040 | return; |
1679 | return; |
1041 | |
1680 | |
1042 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1681 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1043 | ev_stop ((W)w); |
1682 | ev_stop (EV_A_ (W)w); |
1044 | |
1683 | |
1045 | if (!signals [w->signum - 1].head) |
1684 | if (!signals [w->signum - 1].head) |
1046 | signal (w->signum, SIG_DFL); |
1685 | signal (w->signum, SIG_DFL); |
1047 | } |
1686 | } |
1048 | |
1687 | |
1049 | void |
1688 | void |
|
|
1689 | ev_child_start (EV_P_ ev_child *w) |
|
|
1690 | { |
|
|
1691 | #if EV_MULTIPLICITY |
|
|
1692 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1693 | #endif |
|
|
1694 | if (expect_false (ev_is_active (w))) |
|
|
1695 | return; |
|
|
1696 | |
|
|
1697 | ev_start (EV_A_ (W)w, 1); |
|
|
1698 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1699 | } |
|
|
1700 | |
|
|
1701 | void |
|
|
1702 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1703 | { |
|
|
1704 | ev_clear_pending (EV_A_ (W)w); |
|
|
1705 | if (expect_false (!ev_is_active (w))) |
|
|
1706 | return; |
|
|
1707 | |
|
|
1708 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1709 | ev_stop (EV_A_ (W)w); |
|
|
1710 | } |
|
|
1711 | |
|
|
1712 | #if EV_STAT_ENABLE |
|
|
1713 | |
|
|
1714 | # ifdef _WIN32 |
|
|
1715 | # undef lstat |
|
|
1716 | # define lstat(a,b) _stati64 (a,b) |
|
|
1717 | # endif |
|
|
1718 | |
|
|
1719 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1720 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1721 | |
|
|
1722 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1723 | |
|
|
1724 | #if EV_USE_INOTIFY |
|
|
1725 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1726 | |
|
|
1727 | static void noinline |
|
|
1728 | infy_add (EV_P_ ev_stat *w) |
|
|
1729 | { |
|
|
1730 | 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); |
|
|
1731 | |
|
|
1732 | if (w->wd < 0) |
|
|
1733 | { |
|
|
1734 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1735 | |
|
|
1736 | /* monitor some parent directory for speedup hints */ |
|
|
1737 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1738 | { |
|
|
1739 | char path [4096]; |
|
|
1740 | strcpy (path, w->path); |
|
|
1741 | |
|
|
1742 | do |
|
|
1743 | { |
|
|
1744 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1745 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1746 | |
|
|
1747 | char *pend = strrchr (path, '/'); |
|
|
1748 | |
|
|
1749 | if (!pend) |
|
|
1750 | break; /* whoops, no '/', complain to your admin */ |
|
|
1751 | |
|
|
1752 | *pend = 0; |
|
|
1753 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1754 | } |
|
|
1755 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1756 | } |
|
|
1757 | } |
|
|
1758 | else |
|
|
1759 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1760 | |
|
|
1761 | if (w->wd >= 0) |
|
|
1762 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1763 | } |
|
|
1764 | |
|
|
1765 | static void noinline |
|
|
1766 | infy_del (EV_P_ ev_stat *w) |
|
|
1767 | { |
|
|
1768 | int slot; |
|
|
1769 | int wd = w->wd; |
|
|
1770 | |
|
|
1771 | if (wd < 0) |
|
|
1772 | return; |
|
|
1773 | |
|
|
1774 | w->wd = -2; |
|
|
1775 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1776 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1777 | |
|
|
1778 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1779 | inotify_rm_watch (fs_fd, wd); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | static void noinline |
|
|
1783 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1784 | { |
|
|
1785 | if (slot < 0) |
|
|
1786 | /* overflow, need to check for all hahs slots */ |
|
|
1787 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1788 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1789 | else |
|
|
1790 | { |
|
|
1791 | WL w_; |
|
|
1792 | |
|
|
1793 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1794 | { |
|
|
1795 | ev_stat *w = (ev_stat *)w_; |
|
|
1796 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1797 | |
|
|
1798 | if (w->wd == wd || wd == -1) |
|
|
1799 | { |
|
|
1800 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1801 | { |
|
|
1802 | w->wd = -1; |
|
|
1803 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1807 | } |
|
|
1808 | } |
|
|
1809 | } |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | static void |
|
|
1813 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1814 | { |
|
|
1815 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1816 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1817 | int ofs; |
|
|
1818 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1819 | |
|
|
1820 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1821 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | void inline_size |
|
|
1825 | infy_init (EV_P) |
|
|
1826 | { |
|
|
1827 | if (fs_fd != -2) |
|
|
1828 | return; |
|
|
1829 | |
|
|
1830 | fs_fd = inotify_init (); |
|
|
1831 | |
|
|
1832 | if (fs_fd >= 0) |
|
|
1833 | { |
|
|
1834 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1835 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1836 | ev_io_start (EV_A_ &fs_w); |
|
|
1837 | } |
|
|
1838 | } |
|
|
1839 | |
|
|
1840 | void inline_size |
|
|
1841 | infy_fork (EV_P) |
|
|
1842 | { |
|
|
1843 | int slot; |
|
|
1844 | |
|
|
1845 | if (fs_fd < 0) |
|
|
1846 | return; |
|
|
1847 | |
|
|
1848 | close (fs_fd); |
|
|
1849 | fs_fd = inotify_init (); |
|
|
1850 | |
|
|
1851 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1852 | { |
|
|
1853 | WL w_ = fs_hash [slot].head; |
|
|
1854 | fs_hash [slot].head = 0; |
|
|
1855 | |
|
|
1856 | while (w_) |
|
|
1857 | { |
|
|
1858 | ev_stat *w = (ev_stat *)w_; |
|
|
1859 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1860 | |
|
|
1861 | w->wd = -1; |
|
|
1862 | |
|
|
1863 | if (fs_fd >= 0) |
|
|
1864 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1865 | else |
|
|
1866 | ev_timer_start (EV_A_ &w->timer); |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | } |
|
|
1870 | } |
|
|
1871 | |
|
|
1872 | #endif |
|
|
1873 | |
|
|
1874 | void |
|
|
1875 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1876 | { |
|
|
1877 | if (lstat (w->path, &w->attr) < 0) |
|
|
1878 | w->attr.st_nlink = 0; |
|
|
1879 | else if (!w->attr.st_nlink) |
|
|
1880 | w->attr.st_nlink = 1; |
|
|
1881 | } |
|
|
1882 | |
|
|
1883 | static void noinline |
|
|
1884 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1885 | { |
|
|
1886 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1887 | |
|
|
1888 | /* we copy this here each the time so that */ |
|
|
1889 | /* prev has the old value when the callback gets invoked */ |
|
|
1890 | w->prev = w->attr; |
|
|
1891 | ev_stat_stat (EV_A_ w); |
|
|
1892 | |
|
|
1893 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
1894 | if ( |
|
|
1895 | w->prev.st_dev != w->attr.st_dev |
|
|
1896 | || w->prev.st_ino != w->attr.st_ino |
|
|
1897 | || w->prev.st_mode != w->attr.st_mode |
|
|
1898 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
1899 | || w->prev.st_uid != w->attr.st_uid |
|
|
1900 | || w->prev.st_gid != w->attr.st_gid |
|
|
1901 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
1902 | || w->prev.st_size != w->attr.st_size |
|
|
1903 | || w->prev.st_atime != w->attr.st_atime |
|
|
1904 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
1905 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
1906 | ) { |
|
|
1907 | #if EV_USE_INOTIFY |
|
|
1908 | infy_del (EV_A_ w); |
|
|
1909 | infy_add (EV_A_ w); |
|
|
1910 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
1911 | #endif |
|
|
1912 | |
|
|
1913 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1914 | } |
|
|
1915 | } |
|
|
1916 | |
|
|
1917 | void |
|
|
1918 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1919 | { |
|
|
1920 | if (expect_false (ev_is_active (w))) |
|
|
1921 | return; |
|
|
1922 | |
|
|
1923 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1924 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1925 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1926 | |
|
|
1927 | ev_stat_stat (EV_A_ w); |
|
|
1928 | |
|
|
1929 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
1930 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1931 | |
|
|
1932 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1933 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1934 | |
|
|
1935 | #if EV_USE_INOTIFY |
|
|
1936 | infy_init (EV_A); |
|
|
1937 | |
|
|
1938 | if (fs_fd >= 0) |
|
|
1939 | infy_add (EV_A_ w); |
|
|
1940 | else |
|
|
1941 | #endif |
|
|
1942 | ev_timer_start (EV_A_ &w->timer); |
|
|
1943 | |
|
|
1944 | ev_start (EV_A_ (W)w, 1); |
|
|
1945 | } |
|
|
1946 | |
|
|
1947 | void |
|
|
1948 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1949 | { |
|
|
1950 | ev_clear_pending (EV_A_ (W)w); |
|
|
1951 | if (expect_false (!ev_is_active (w))) |
|
|
1952 | return; |
|
|
1953 | |
|
|
1954 | #if EV_USE_INOTIFY |
|
|
1955 | infy_del (EV_A_ w); |
|
|
1956 | #endif |
|
|
1957 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1958 | |
|
|
1959 | ev_stop (EV_A_ (W)w); |
|
|
1960 | } |
|
|
1961 | #endif |
|
|
1962 | |
|
|
1963 | void |
1050 | ev_idle_start (struct ev_idle *w) |
1964 | ev_idle_start (EV_P_ ev_idle *w) |
1051 | { |
1965 | { |
1052 | if (ev_is_active (w)) |
1966 | if (expect_false (ev_is_active (w))) |
1053 | return; |
1967 | return; |
1054 | |
1968 | |
1055 | ev_start ((W)w, ++idlecnt); |
1969 | ev_start (EV_A_ (W)w, ++idlecnt); |
1056 | array_needsize (idles, idlemax, idlecnt, ); |
1970 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1057 | idles [idlecnt - 1] = w; |
1971 | idles [idlecnt - 1] = w; |
1058 | } |
1972 | } |
1059 | |
1973 | |
1060 | void |
1974 | void |
1061 | ev_idle_stop (struct ev_idle *w) |
1975 | ev_idle_stop (EV_P_ ev_idle *w) |
1062 | { |
1976 | { |
1063 | ev_clear_pending ((W)w); |
1977 | ev_clear_pending (EV_A_ (W)w); |
1064 | if (ev_is_active (w)) |
1978 | if (expect_false (!ev_is_active (w))) |
1065 | return; |
1979 | return; |
1066 | |
1980 | |
|
|
1981 | { |
|
|
1982 | int active = ((W)w)->active; |
1067 | idles [w->active - 1] = idles [--idlecnt]; |
1983 | idles [active - 1] = idles [--idlecnt]; |
|
|
1984 | ((W)idles [active - 1])->active = active; |
|
|
1985 | } |
|
|
1986 | |
1068 | ev_stop ((W)w); |
1987 | ev_stop (EV_A_ (W)w); |
1069 | } |
1988 | } |
1070 | |
1989 | |
1071 | void |
1990 | void |
1072 | ev_prepare_start (struct ev_prepare *w) |
1991 | ev_prepare_start (EV_P_ ev_prepare *w) |
1073 | { |
1992 | { |
1074 | if (ev_is_active (w)) |
1993 | if (expect_false (ev_is_active (w))) |
1075 | return; |
1994 | return; |
1076 | |
1995 | |
1077 | ev_start ((W)w, ++preparecnt); |
1996 | ev_start (EV_A_ (W)w, ++preparecnt); |
1078 | array_needsize (prepares, preparemax, preparecnt, ); |
1997 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1079 | prepares [preparecnt - 1] = w; |
1998 | prepares [preparecnt - 1] = w; |
1080 | } |
1999 | } |
1081 | |
2000 | |
1082 | void |
2001 | void |
1083 | ev_prepare_stop (struct ev_prepare *w) |
2002 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1084 | { |
2003 | { |
1085 | ev_clear_pending ((W)w); |
2004 | ev_clear_pending (EV_A_ (W)w); |
1086 | if (ev_is_active (w)) |
2005 | if (expect_false (!ev_is_active (w))) |
1087 | return; |
2006 | return; |
1088 | |
2007 | |
|
|
2008 | { |
|
|
2009 | int active = ((W)w)->active; |
1089 | prepares [w->active - 1] = prepares [--preparecnt]; |
2010 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2011 | ((W)prepares [active - 1])->active = active; |
|
|
2012 | } |
|
|
2013 | |
1090 | ev_stop ((W)w); |
2014 | ev_stop (EV_A_ (W)w); |
1091 | } |
2015 | } |
1092 | |
2016 | |
1093 | void |
2017 | void |
1094 | ev_check_start (struct ev_check *w) |
2018 | ev_check_start (EV_P_ ev_check *w) |
1095 | { |
2019 | { |
1096 | if (ev_is_active (w)) |
2020 | if (expect_false (ev_is_active (w))) |
1097 | return; |
2021 | return; |
1098 | |
2022 | |
1099 | ev_start ((W)w, ++checkcnt); |
2023 | ev_start (EV_A_ (W)w, ++checkcnt); |
1100 | array_needsize (checks, checkmax, checkcnt, ); |
2024 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1101 | checks [checkcnt - 1] = w; |
2025 | checks [checkcnt - 1] = w; |
1102 | } |
2026 | } |
1103 | |
2027 | |
1104 | void |
2028 | void |
1105 | ev_check_stop (struct ev_check *w) |
2029 | ev_check_stop (EV_P_ ev_check *w) |
1106 | { |
2030 | { |
1107 | ev_clear_pending ((W)w); |
2031 | ev_clear_pending (EV_A_ (W)w); |
1108 | if (ev_is_active (w)) |
2032 | if (expect_false (!ev_is_active (w))) |
1109 | return; |
2033 | return; |
1110 | |
2034 | |
|
|
2035 | { |
|
|
2036 | int active = ((W)w)->active; |
1111 | checks [w->active - 1] = checks [--checkcnt]; |
2037 | checks [active - 1] = checks [--checkcnt]; |
|
|
2038 | ((W)checks [active - 1])->active = active; |
|
|
2039 | } |
|
|
2040 | |
1112 | ev_stop ((W)w); |
2041 | ev_stop (EV_A_ (W)w); |
1113 | } |
2042 | } |
1114 | |
2043 | |
1115 | void |
2044 | #if EV_EMBED_ENABLE |
1116 | ev_child_start (struct ev_child *w) |
2045 | void noinline |
|
|
2046 | ev_embed_sweep (EV_P_ ev_embed *w) |
1117 | { |
2047 | { |
|
|
2048 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2049 | } |
|
|
2050 | |
|
|
2051 | static void |
|
|
2052 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2053 | { |
|
|
2054 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2055 | |
1118 | if (ev_is_active (w)) |
2056 | if (ev_cb (w)) |
1119 | return; |
2057 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2058 | else |
|
|
2059 | ev_embed_sweep (loop, w); |
|
|
2060 | } |
1120 | |
2061 | |
|
|
2062 | void |
|
|
2063 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2064 | { |
|
|
2065 | if (expect_false (ev_is_active (w))) |
|
|
2066 | return; |
|
|
2067 | |
|
|
2068 | { |
|
|
2069 | struct ev_loop *loop = w->loop; |
|
|
2070 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2071 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2072 | } |
|
|
2073 | |
|
|
2074 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2075 | ev_io_start (EV_A_ &w->io); |
|
|
2076 | |
1121 | ev_start ((W)w, 1); |
2077 | ev_start (EV_A_ (W)w, 1); |
1122 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1123 | } |
2078 | } |
1124 | |
2079 | |
1125 | void |
2080 | void |
1126 | ev_child_stop (struct ev_child *w) |
2081 | ev_embed_stop (EV_P_ ev_embed *w) |
1127 | { |
2082 | { |
1128 | ev_clear_pending ((W)w); |
2083 | ev_clear_pending (EV_A_ (W)w); |
1129 | if (ev_is_active (w)) |
2084 | if (expect_false (!ev_is_active (w))) |
1130 | return; |
2085 | return; |
1131 | |
2086 | |
1132 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2087 | ev_io_stop (EV_A_ &w->io); |
|
|
2088 | |
1133 | ev_stop ((W)w); |
2089 | ev_stop (EV_A_ (W)w); |
1134 | } |
2090 | } |
|
|
2091 | #endif |
|
|
2092 | |
|
|
2093 | #if EV_FORK_ENABLE |
|
|
2094 | void |
|
|
2095 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2096 | { |
|
|
2097 | if (expect_false (ev_is_active (w))) |
|
|
2098 | return; |
|
|
2099 | |
|
|
2100 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2101 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2102 | forks [forkcnt - 1] = w; |
|
|
2103 | } |
|
|
2104 | |
|
|
2105 | void |
|
|
2106 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2107 | { |
|
|
2108 | ev_clear_pending (EV_A_ (W)w); |
|
|
2109 | if (expect_false (!ev_is_active (w))) |
|
|
2110 | return; |
|
|
2111 | |
|
|
2112 | { |
|
|
2113 | int active = ((W)w)->active; |
|
|
2114 | forks [active - 1] = forks [--forkcnt]; |
|
|
2115 | ((W)forks [active - 1])->active = active; |
|
|
2116 | } |
|
|
2117 | |
|
|
2118 | ev_stop (EV_A_ (W)w); |
|
|
2119 | } |
|
|
2120 | #endif |
1135 | |
2121 | |
1136 | /*****************************************************************************/ |
2122 | /*****************************************************************************/ |
1137 | |
2123 | |
1138 | struct ev_once |
2124 | struct ev_once |
1139 | { |
2125 | { |
1140 | struct ev_io io; |
2126 | ev_io io; |
1141 | struct ev_timer to; |
2127 | ev_timer to; |
1142 | void (*cb)(int revents, void *arg); |
2128 | void (*cb)(int revents, void *arg); |
1143 | void *arg; |
2129 | void *arg; |
1144 | }; |
2130 | }; |
1145 | |
2131 | |
1146 | static void |
2132 | static void |
1147 | once_cb (struct ev_once *once, int revents) |
2133 | once_cb (EV_P_ struct ev_once *once, int revents) |
1148 | { |
2134 | { |
1149 | void (*cb)(int revents, void *arg) = once->cb; |
2135 | void (*cb)(int revents, void *arg) = once->cb; |
1150 | void *arg = once->arg; |
2136 | void *arg = once->arg; |
1151 | |
2137 | |
1152 | ev_io_stop (&once->io); |
2138 | ev_io_stop (EV_A_ &once->io); |
1153 | ev_timer_stop (&once->to); |
2139 | ev_timer_stop (EV_A_ &once->to); |
1154 | free (once); |
2140 | ev_free (once); |
1155 | |
2141 | |
1156 | cb (revents, arg); |
2142 | cb (revents, arg); |
1157 | } |
2143 | } |
1158 | |
2144 | |
1159 | static void |
2145 | static void |
1160 | once_cb_io (struct ev_io *w, int revents) |
2146 | once_cb_io (EV_P_ ev_io *w, int revents) |
1161 | { |
2147 | { |
1162 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2148 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1163 | } |
2149 | } |
1164 | |
2150 | |
1165 | static void |
2151 | static void |
1166 | once_cb_to (struct ev_timer *w, int revents) |
2152 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1167 | { |
2153 | { |
1168 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2154 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1169 | } |
2155 | } |
1170 | |
2156 | |
1171 | void |
2157 | void |
1172 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2158 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1173 | { |
2159 | { |
1174 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2160 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1175 | |
2161 | |
1176 | if (!once) |
2162 | if (expect_false (!once)) |
|
|
2163 | { |
1177 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2164 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1178 | else |
2165 | return; |
1179 | { |
2166 | } |
|
|
2167 | |
1180 | once->cb = cb; |
2168 | once->cb = cb; |
1181 | once->arg = arg; |
2169 | once->arg = arg; |
1182 | |
2170 | |
1183 | ev_watcher_init (&once->io, once_cb_io); |
2171 | ev_init (&once->io, once_cb_io); |
1184 | if (fd >= 0) |
2172 | if (fd >= 0) |
1185 | { |
2173 | { |
1186 | ev_io_set (&once->io, fd, events); |
2174 | ev_io_set (&once->io, fd, events); |
1187 | ev_io_start (&once->io); |
2175 | ev_io_start (EV_A_ &once->io); |
1188 | } |
2176 | } |
1189 | |
2177 | |
1190 | ev_watcher_init (&once->to, once_cb_to); |
2178 | ev_init (&once->to, once_cb_to); |
1191 | if (timeout >= 0.) |
2179 | if (timeout >= 0.) |
1192 | { |
2180 | { |
1193 | ev_timer_set (&once->to, timeout, 0.); |
2181 | ev_timer_set (&once->to, timeout, 0.); |
1194 | ev_timer_start (&once->to); |
2182 | ev_timer_start (EV_A_ &once->to); |
1195 | } |
|
|
1196 | } |
|
|
1197 | } |
|
|
1198 | |
|
|
1199 | /*****************************************************************************/ |
|
|
1200 | |
|
|
1201 | #if 0 |
|
|
1202 | |
|
|
1203 | struct ev_io wio; |
|
|
1204 | |
|
|
1205 | static void |
|
|
1206 | sin_cb (struct ev_io *w, int revents) |
|
|
1207 | { |
|
|
1208 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1209 | } |
|
|
1210 | |
|
|
1211 | static void |
|
|
1212 | ocb (struct ev_timer *w, int revents) |
|
|
1213 | { |
|
|
1214 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1215 | ev_timer_stop (w); |
|
|
1216 | ev_timer_start (w); |
|
|
1217 | } |
|
|
1218 | |
|
|
1219 | static void |
|
|
1220 | scb (struct ev_signal *w, int revents) |
|
|
1221 | { |
|
|
1222 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1223 | ev_io_stop (&wio); |
|
|
1224 | ev_io_start (&wio); |
|
|
1225 | } |
|
|
1226 | |
|
|
1227 | static void |
|
|
1228 | gcb (struct ev_signal *w, int revents) |
|
|
1229 | { |
|
|
1230 | fprintf (stderr, "generic %x\n", revents); |
|
|
1231 | |
|
|
1232 | } |
|
|
1233 | |
|
|
1234 | int main (void) |
|
|
1235 | { |
|
|
1236 | ev_init (0); |
|
|
1237 | |
|
|
1238 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1239 | ev_io_start (&wio); |
|
|
1240 | |
|
|
1241 | struct ev_timer t[10000]; |
|
|
1242 | |
|
|
1243 | #if 0 |
|
|
1244 | int i; |
|
|
1245 | for (i = 0; i < 10000; ++i) |
|
|
1246 | { |
2183 | } |
1247 | struct ev_timer *w = t + i; |
|
|
1248 | ev_watcher_init (w, ocb, i); |
|
|
1249 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1250 | ev_timer_start (w); |
|
|
1251 | if (drand48 () < 0.5) |
|
|
1252 | ev_timer_stop (w); |
|
|
1253 | } |
|
|
1254 | #endif |
|
|
1255 | |
|
|
1256 | struct ev_timer t1; |
|
|
1257 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1258 | ev_timer_start (&t1); |
|
|
1259 | |
|
|
1260 | struct ev_signal sig; |
|
|
1261 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1262 | ev_signal_start (&sig); |
|
|
1263 | |
|
|
1264 | struct ev_check cw; |
|
|
1265 | ev_check_init (&cw, gcb); |
|
|
1266 | ev_check_start (&cw); |
|
|
1267 | |
|
|
1268 | struct ev_idle iw; |
|
|
1269 | ev_idle_init (&iw, gcb); |
|
|
1270 | ev_idle_start (&iw); |
|
|
1271 | |
|
|
1272 | ev_loop (0); |
|
|
1273 | |
|
|
1274 | return 0; |
|
|
1275 | } |
2184 | } |
1276 | |
2185 | |
|
|
2186 | #ifdef __cplusplus |
|
|
2187 | } |
1277 | #endif |
2188 | #endif |
1278 | |
2189 | |
1279 | |
|
|
1280 | |
|
|
1281 | |
|
|