… | |
… | |
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->status = status; |
790 | return; |
491 | event ((W)w, EV_CHILD); |
791 | |
492 | } |
792 | /* make sure we are called again until all childs have been reaped */ |
|
|
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 */ |
493 | } |
799 | } |
494 | |
800 | |
495 | #endif |
801 | #endif |
496 | |
802 | |
497 | /*****************************************************************************/ |
803 | /*****************************************************************************/ |
498 | |
804 | |
|
|
805 | #if EV_USE_PORT |
|
|
806 | # include "ev_port.c" |
|
|
807 | #endif |
499 | #if EV_USE_KQUEUE |
808 | #if EV_USE_KQUEUE |
500 | # include "ev_kqueue.c" |
809 | # include "ev_kqueue.c" |
501 | #endif |
810 | #endif |
502 | #if EV_USE_EPOLL |
811 | #if EV_USE_EPOLL |
503 | # include "ev_epoll.c" |
812 | # include "ev_epoll.c" |
… | |
… | |
519 | ev_version_minor (void) |
828 | ev_version_minor (void) |
520 | { |
829 | { |
521 | return EV_VERSION_MINOR; |
830 | return EV_VERSION_MINOR; |
522 | } |
831 | } |
523 | |
832 | |
524 | /* 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 */ |
525 | static int |
834 | int inline_size |
526 | enable_secure () |
835 | enable_secure (void) |
527 | { |
836 | { |
|
|
837 | #ifdef _WIN32 |
|
|
838 | return 0; |
|
|
839 | #else |
528 | return getuid () != geteuid () |
840 | return getuid () != geteuid () |
529 | || getgid () != getegid (); |
841 | || getgid () != getegid (); |
|
|
842 | #endif |
530 | } |
843 | } |
531 | |
844 | |
532 | int ev_init (int methods) |
845 | unsigned int |
|
|
846 | ev_supported_backends (void) |
533 | { |
847 | { |
534 | 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) |
535 | { |
895 | { |
536 | #if EV_USE_MONOTONIC |
896 | #if EV_USE_MONOTONIC |
537 | { |
897 | { |
538 | struct timespec ts; |
898 | struct timespec ts; |
539 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
899 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
540 | have_monotonic = 1; |
900 | have_monotonic = 1; |
541 | } |
901 | } |
542 | #endif |
902 | #endif |
543 | |
903 | |
544 | ev_now = ev_time (); |
904 | ev_rt_now = ev_time (); |
545 | now = get_clock (); |
905 | mn_now = get_clock (); |
546 | now_floor = now; |
906 | now_floor = mn_now; |
547 | diff = ev_now - now; |
907 | rtmn_diff = ev_rt_now - mn_now; |
548 | |
908 | |
549 | if (pipe (sigpipe)) |
909 | /* pid check not overridable via env */ |
550 | return 0; |
910 | #ifndef _WIN32 |
|
|
911 | if (flags & EVFLAG_FORKCHECK) |
|
|
912 | curpid = getpid (); |
|
|
913 | #endif |
551 | |
914 | |
552 | if (methods == EVMETHOD_AUTO) |
915 | if (!(flags & EVFLAG_NOENV) |
553 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
916 | && !enable_secure () |
|
|
917 | && getenv ("LIBEV_FLAGS")) |
554 | methods = atoi (getenv ("LIBEV_METHODS")); |
918 | flags = atoi (getenv ("LIBEV_FLAGS")); |
555 | else |
|
|
556 | methods = EVMETHOD_ANY; |
|
|
557 | |
919 | |
558 | ev_method = 0; |
920 | if (!(flags & 0x0000ffffUL)) |
|
|
921 | flags |= ev_recommended_backends (); |
|
|
922 | |
|
|
923 | backend = 0; |
|
|
924 | backend_fd = -1; |
|
|
925 | #if EV_USE_INOTIFY |
|
|
926 | fs_fd = -2; |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if EV_USE_PORT |
|
|
930 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
931 | #endif |
559 | #if EV_USE_KQUEUE |
932 | #if EV_USE_KQUEUE |
560 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
933 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
561 | #endif |
934 | #endif |
562 | #if EV_USE_EPOLL |
935 | #if EV_USE_EPOLL |
563 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
936 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
564 | #endif |
937 | #endif |
565 | #if EV_USE_POLL |
938 | #if EV_USE_POLL |
566 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
939 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
567 | #endif |
940 | #endif |
568 | #if EV_USE_SELECT |
941 | #if EV_USE_SELECT |
569 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
942 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
570 | #endif |
943 | #endif |
571 | |
944 | |
572 | if (ev_method) |
945 | ev_init (&sigev, sigcb); |
|
|
946 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
947 | } |
|
|
948 | } |
|
|
949 | |
|
|
950 | static void noinline |
|
|
951 | loop_destroy (EV_P) |
|
|
952 | { |
|
|
953 | int i; |
|
|
954 | |
|
|
955 | #if EV_USE_INOTIFY |
|
|
956 | if (fs_fd >= 0) |
|
|
957 | close (fs_fd); |
|
|
958 | #endif |
|
|
959 | |
|
|
960 | if (backend_fd >= 0) |
|
|
961 | close (backend_fd); |
|
|
962 | |
|
|
963 | #if EV_USE_PORT |
|
|
964 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
965 | #endif |
|
|
966 | #if EV_USE_KQUEUE |
|
|
967 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
968 | #endif |
|
|
969 | #if EV_USE_EPOLL |
|
|
970 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
971 | #endif |
|
|
972 | #if EV_USE_POLL |
|
|
973 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
974 | #endif |
|
|
975 | #if EV_USE_SELECT |
|
|
976 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
977 | #endif |
|
|
978 | |
|
|
979 | for (i = NUMPRI; i--; ) |
|
|
980 | array_free (pending, [i]); |
|
|
981 | |
|
|
982 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
983 | array_free (fdchange, EMPTY0); |
|
|
984 | array_free (timer, EMPTY0); |
|
|
985 | #if EV_PERIODIC_ENABLE |
|
|
986 | array_free (periodic, EMPTY0); |
|
|
987 | #endif |
|
|
988 | array_free (idle, EMPTY0); |
|
|
989 | array_free (prepare, EMPTY0); |
|
|
990 | array_free (check, EMPTY0); |
|
|
991 | |
|
|
992 | backend = 0; |
|
|
993 | } |
|
|
994 | |
|
|
995 | void inline_size infy_fork (EV_P); |
|
|
996 | |
|
|
997 | void inline_size |
|
|
998 | loop_fork (EV_P) |
|
|
999 | { |
|
|
1000 | #if EV_USE_PORT |
|
|
1001 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1002 | #endif |
|
|
1003 | #if EV_USE_KQUEUE |
|
|
1004 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1005 | #endif |
|
|
1006 | #if EV_USE_EPOLL |
|
|
1007 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1008 | #endif |
|
|
1009 | #if EV_USE_INOTIFY |
|
|
1010 | infy_fork (EV_A); |
|
|
1011 | #endif |
|
|
1012 | |
|
|
1013 | if (ev_is_active (&sigev)) |
|
|
1014 | { |
|
|
1015 | /* default loop */ |
|
|
1016 | |
|
|
1017 | ev_ref (EV_A); |
|
|
1018 | ev_io_stop (EV_A_ &sigev); |
|
|
1019 | close (sigpipe [0]); |
|
|
1020 | close (sigpipe [1]); |
|
|
1021 | |
|
|
1022 | while (pipe (sigpipe)) |
|
|
1023 | syserr ("(libev) error creating pipe"); |
|
|
1024 | |
|
|
1025 | siginit (EV_A); |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | postfork = 0; |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | #if EV_MULTIPLICITY |
|
|
1032 | struct ev_loop * |
|
|
1033 | ev_loop_new (unsigned int flags) |
|
|
1034 | { |
|
|
1035 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1036 | |
|
|
1037 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1038 | |
|
|
1039 | loop_init (EV_A_ flags); |
|
|
1040 | |
|
|
1041 | if (ev_backend (EV_A)) |
|
|
1042 | return loop; |
|
|
1043 | |
|
|
1044 | return 0; |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | void |
|
|
1048 | ev_loop_destroy (EV_P) |
|
|
1049 | { |
|
|
1050 | loop_destroy (EV_A); |
|
|
1051 | ev_free (loop); |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | void |
|
|
1055 | ev_loop_fork (EV_P) |
|
|
1056 | { |
|
|
1057 | postfork = 1; |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | #endif |
|
|
1061 | |
|
|
1062 | #if EV_MULTIPLICITY |
|
|
1063 | struct ev_loop * |
|
|
1064 | ev_default_loop_init (unsigned int flags) |
|
|
1065 | #else |
|
|
1066 | int |
|
|
1067 | ev_default_loop (unsigned int flags) |
|
|
1068 | #endif |
|
|
1069 | { |
|
|
1070 | if (sigpipe [0] == sigpipe [1]) |
|
|
1071 | if (pipe (sigpipe)) |
|
|
1072 | return 0; |
|
|
1073 | |
|
|
1074 | if (!ev_default_loop_ptr) |
|
|
1075 | { |
|
|
1076 | #if EV_MULTIPLICITY |
|
|
1077 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1078 | #else |
|
|
1079 | ev_default_loop_ptr = 1; |
|
|
1080 | #endif |
|
|
1081 | |
|
|
1082 | loop_init (EV_A_ flags); |
|
|
1083 | |
|
|
1084 | if (ev_backend (EV_A)) |
573 | { |
1085 | { |
574 | ev_watcher_init (&sigev, sigcb); |
|
|
575 | siginit (); |
1086 | siginit (EV_A); |
576 | |
1087 | |
577 | #ifndef WIN32 |
1088 | #ifndef _WIN32 |
578 | ev_signal_init (&childev, childcb, SIGCHLD); |
1089 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1090 | ev_set_priority (&childev, EV_MAXPRI); |
579 | ev_signal_start (&childev); |
1091 | ev_signal_start (EV_A_ &childev); |
|
|
1092 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
580 | #endif |
1093 | #endif |
581 | } |
1094 | } |
|
|
1095 | else |
|
|
1096 | ev_default_loop_ptr = 0; |
582 | } |
1097 | } |
583 | |
1098 | |
584 | return ev_method; |
1099 | return ev_default_loop_ptr; |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | void |
|
|
1103 | ev_default_destroy (void) |
|
|
1104 | { |
|
|
1105 | #if EV_MULTIPLICITY |
|
|
1106 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1107 | #endif |
|
|
1108 | |
|
|
1109 | #ifndef _WIN32 |
|
|
1110 | ev_ref (EV_A); /* child watcher */ |
|
|
1111 | ev_signal_stop (EV_A_ &childev); |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | ev_ref (EV_A); /* signal watcher */ |
|
|
1115 | ev_io_stop (EV_A_ &sigev); |
|
|
1116 | |
|
|
1117 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1118 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1119 | |
|
|
1120 | loop_destroy (EV_A); |
|
|
1121 | } |
|
|
1122 | |
|
|
1123 | void |
|
|
1124 | ev_default_fork (void) |
|
|
1125 | { |
|
|
1126 | #if EV_MULTIPLICITY |
|
|
1127 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1128 | #endif |
|
|
1129 | |
|
|
1130 | if (backend) |
|
|
1131 | postfork = 1; |
585 | } |
1132 | } |
586 | |
1133 | |
587 | /*****************************************************************************/ |
1134 | /*****************************************************************************/ |
588 | |
1135 | |
589 | void |
1136 | int inline_size |
590 | ev_fork_prepare (void) |
1137 | any_pending (EV_P) |
591 | { |
1138 | { |
592 | /* nop */ |
1139 | int pri; |
593 | } |
|
|
594 | |
1140 | |
595 | void |
1141 | for (pri = NUMPRI; pri--; ) |
596 | ev_fork_parent (void) |
1142 | if (pendingcnt [pri]) |
597 | { |
1143 | return 1; |
598 | /* nop */ |
|
|
599 | } |
|
|
600 | |
1144 | |
601 | void |
1145 | return 0; |
602 | ev_fork_child (void) |
|
|
603 | { |
|
|
604 | #if EV_USE_EPOLL |
|
|
605 | if (ev_method == EVMETHOD_EPOLL) |
|
|
606 | epoll_postfork_child (); |
|
|
607 | #endif |
|
|
608 | |
|
|
609 | ev_io_stop (&sigev); |
|
|
610 | close (sigpipe [0]); |
|
|
611 | close (sigpipe [1]); |
|
|
612 | pipe (sigpipe); |
|
|
613 | siginit (); |
|
|
614 | } |
1146 | } |
615 | |
1147 | |
616 | /*****************************************************************************/ |
1148 | void inline_speed |
617 | |
|
|
618 | static void |
|
|
619 | call_pending (void) |
1149 | call_pending (EV_P) |
620 | { |
1150 | { |
621 | int pri; |
1151 | int pri; |
622 | |
1152 | |
623 | for (pri = NUMPRI; pri--; ) |
1153 | for (pri = NUMPRI; pri--; ) |
624 | while (pendingcnt [pri]) |
1154 | while (pendingcnt [pri]) |
625 | { |
1155 | { |
626 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1156 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
627 | |
1157 | |
628 | if (p->w) |
1158 | if (expect_true (p->w)) |
629 | { |
1159 | { |
|
|
1160 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1161 | |
630 | p->w->pending = 0; |
1162 | p->w->pending = 0; |
631 | p->w->cb (p->w, p->events); |
1163 | EV_CB_INVOKE (p->w, p->events); |
632 | } |
1164 | } |
633 | } |
1165 | } |
634 | } |
1166 | } |
635 | |
1167 | |
636 | static void |
1168 | void inline_size |
637 | timers_reify (void) |
1169 | timers_reify (EV_P) |
638 | { |
1170 | { |
639 | while (timercnt && timers [0]->at <= now) |
1171 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
640 | { |
1172 | { |
641 | struct ev_timer *w = timers [0]; |
1173 | ev_timer *w = timers [0]; |
|
|
1174 | |
|
|
1175 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
642 | |
1176 | |
643 | /* first reschedule or stop timer */ |
1177 | /* first reschedule or stop timer */ |
644 | if (w->repeat) |
1178 | if (w->repeat) |
645 | { |
1179 | { |
646 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1180 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1181 | |
647 | w->at = now + w->repeat; |
1182 | ((WT)w)->at += w->repeat; |
|
|
1183 | if (((WT)w)->at < mn_now) |
|
|
1184 | ((WT)w)->at = mn_now; |
|
|
1185 | |
648 | downheap ((WT *)timers, timercnt, 0); |
1186 | downheap ((WT *)timers, timercnt, 0); |
649 | } |
1187 | } |
650 | else |
1188 | else |
651 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1189 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
652 | |
1190 | |
653 | event ((W)w, EV_TIMEOUT); |
1191 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
654 | } |
1192 | } |
655 | } |
1193 | } |
656 | |
1194 | |
657 | static void |
1195 | #if EV_PERIODIC_ENABLE |
|
|
1196 | void inline_size |
658 | periodics_reify (void) |
1197 | periodics_reify (EV_P) |
659 | { |
1198 | { |
660 | while (periodiccnt && periodics [0]->at <= ev_now) |
1199 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
661 | { |
1200 | { |
662 | struct ev_periodic *w = periodics [0]; |
1201 | ev_periodic *w = periodics [0]; |
|
|
1202 | |
|
|
1203 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
663 | |
1204 | |
664 | /* first reschedule or stop timer */ |
1205 | /* first reschedule or stop timer */ |
665 | if (w->interval) |
1206 | if (w->reschedule_cb) |
666 | { |
1207 | { |
|
|
1208 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1209 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1210 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1211 | } |
|
|
1212 | else if (w->interval) |
|
|
1213 | { |
667 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1214 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
668 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1215 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
669 | downheap ((WT *)periodics, periodiccnt, 0); |
1216 | downheap ((WT *)periodics, periodiccnt, 0); |
670 | } |
1217 | } |
671 | else |
1218 | else |
672 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1219 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
673 | |
1220 | |
674 | event ((W)w, EV_PERIODIC); |
1221 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
675 | } |
1222 | } |
676 | } |
1223 | } |
677 | |
1224 | |
678 | static void |
1225 | static void noinline |
679 | periodics_reschedule (ev_tstamp diff) |
1226 | periodics_reschedule (EV_P) |
680 | { |
1227 | { |
681 | int i; |
1228 | int i; |
682 | |
1229 | |
683 | /* adjust periodics after time jump */ |
1230 | /* adjust periodics after time jump */ |
684 | for (i = 0; i < periodiccnt; ++i) |
1231 | for (i = 0; i < periodiccnt; ++i) |
685 | { |
1232 | { |
686 | struct ev_periodic *w = periodics [i]; |
1233 | ev_periodic *w = periodics [i]; |
687 | |
1234 | |
|
|
1235 | if (w->reschedule_cb) |
|
|
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
688 | if (w->interval) |
1237 | else if (w->interval) |
689 | { |
|
|
690 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1238 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
691 | |
|
|
692 | if (fabs (diff) >= 1e-4) |
|
|
693 | { |
|
|
694 | ev_periodic_stop (w); |
|
|
695 | ev_periodic_start (w); |
|
|
696 | |
|
|
697 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
698 | } |
|
|
699 | } |
|
|
700 | } |
1239 | } |
701 | } |
|
|
702 | |
1240 | |
703 | static int |
1241 | /* now rebuild the heap */ |
|
|
1242 | for (i = periodiccnt >> 1; i--; ) |
|
|
1243 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1244 | } |
|
|
1245 | #endif |
|
|
1246 | |
|
|
1247 | int inline_size |
704 | time_update_monotonic (void) |
1248 | time_update_monotonic (EV_P) |
705 | { |
1249 | { |
706 | now = get_clock (); |
1250 | mn_now = get_clock (); |
707 | |
1251 | |
708 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
1252 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
709 | { |
1253 | { |
710 | ev_now = now + diff; |
1254 | ev_rt_now = rtmn_diff + mn_now; |
711 | return 0; |
1255 | return 0; |
712 | } |
1256 | } |
713 | else |
1257 | else |
714 | { |
1258 | { |
715 | now_floor = now; |
1259 | now_floor = mn_now; |
716 | ev_now = ev_time (); |
1260 | ev_rt_now = ev_time (); |
717 | return 1; |
1261 | return 1; |
718 | } |
1262 | } |
719 | } |
1263 | } |
720 | |
1264 | |
721 | static void |
1265 | void inline_size |
722 | time_update (void) |
1266 | time_update (EV_P) |
723 | { |
1267 | { |
724 | int i; |
1268 | int i; |
725 | |
1269 | |
726 | #if EV_USE_MONOTONIC |
1270 | #if EV_USE_MONOTONIC |
727 | if (expect_true (have_monotonic)) |
1271 | if (expect_true (have_monotonic)) |
728 | { |
1272 | { |
729 | if (time_update_monotonic ()) |
1273 | if (time_update_monotonic (EV_A)) |
730 | { |
1274 | { |
731 | ev_tstamp odiff = diff; |
1275 | ev_tstamp odiff = rtmn_diff; |
732 | |
1276 | |
733 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1277 | /* loop a few times, before making important decisions. |
|
|
1278 | * on the choice of "4": one iteration isn't enough, |
|
|
1279 | * in case we get preempted during the calls to |
|
|
1280 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1281 | * to succeed in that case, though. and looping a few more times |
|
|
1282 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1283 | * in the unlikely event of having been preempted here. |
|
|
1284 | */ |
|
|
1285 | for (i = 4; --i; ) |
734 | { |
1286 | { |
735 | diff = ev_now - now; |
1287 | rtmn_diff = ev_rt_now - mn_now; |
736 | |
1288 | |
737 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1289 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
738 | return; /* all is well */ |
1290 | return; /* all is well */ |
739 | |
1291 | |
740 | ev_now = ev_time (); |
1292 | ev_rt_now = ev_time (); |
741 | now = get_clock (); |
1293 | mn_now = get_clock (); |
742 | now_floor = now; |
1294 | now_floor = mn_now; |
743 | } |
1295 | } |
744 | |
1296 | |
|
|
1297 | # if EV_PERIODIC_ENABLE |
745 | periodics_reschedule (diff - odiff); |
1298 | periodics_reschedule (EV_A); |
|
|
1299 | # endif |
746 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1300 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1301 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
747 | } |
1302 | } |
748 | } |
1303 | } |
749 | else |
1304 | else |
750 | #endif |
1305 | #endif |
751 | { |
1306 | { |
752 | ev_now = ev_time (); |
1307 | ev_rt_now = ev_time (); |
753 | |
1308 | |
754 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1309 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
755 | { |
1310 | { |
|
|
1311 | #if EV_PERIODIC_ENABLE |
756 | periodics_reschedule (ev_now - now); |
1312 | periodics_reschedule (EV_A); |
|
|
1313 | #endif |
757 | |
1314 | |
758 | /* adjust timers. this is easy, as the offset is the same for all */ |
1315 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
759 | for (i = 0; i < timercnt; ++i) |
1316 | for (i = 0; i < timercnt; ++i) |
760 | timers [i]->at += diff; |
1317 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
761 | } |
1318 | } |
762 | |
1319 | |
763 | now = ev_now; |
1320 | mn_now = ev_rt_now; |
764 | } |
1321 | } |
765 | } |
1322 | } |
766 | |
1323 | |
767 | int ev_loop_done; |
1324 | void |
|
|
1325 | ev_ref (EV_P) |
|
|
1326 | { |
|
|
1327 | ++activecnt; |
|
|
1328 | } |
768 | |
1329 | |
|
|
1330 | void |
|
|
1331 | ev_unref (EV_P) |
|
|
1332 | { |
|
|
1333 | --activecnt; |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | static int loop_done; |
|
|
1337 | |
|
|
1338 | void |
769 | void ev_loop (int flags) |
1339 | ev_loop (EV_P_ int flags) |
770 | { |
1340 | { |
771 | double block; |
|
|
772 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1341 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1342 | ? EVUNLOOP_ONE |
|
|
1343 | : EVUNLOOP_CANCEL; |
773 | |
1344 | |
774 | do |
1345 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1346 | |
|
|
1347 | while (activecnt) |
775 | { |
1348 | { |
|
|
1349 | #ifndef _WIN32 |
|
|
1350 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1351 | if (expect_false (getpid () != curpid)) |
|
|
1352 | { |
|
|
1353 | curpid = getpid (); |
|
|
1354 | postfork = 1; |
|
|
1355 | } |
|
|
1356 | #endif |
|
|
1357 | |
|
|
1358 | #if EV_FORK_ENABLE |
|
|
1359 | /* we might have forked, so queue fork handlers */ |
|
|
1360 | if (expect_false (postfork)) |
|
|
1361 | if (forkcnt) |
|
|
1362 | { |
|
|
1363 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1364 | call_pending (EV_A); |
|
|
1365 | } |
|
|
1366 | #endif |
|
|
1367 | |
776 | /* queue check watchers (and execute them) */ |
1368 | /* queue check watchers (and execute them) */ |
777 | if (expect_false (preparecnt)) |
1369 | if (expect_false (preparecnt)) |
778 | { |
1370 | { |
779 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1371 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
780 | call_pending (); |
1372 | call_pending (EV_A); |
781 | } |
1373 | } |
782 | |
1374 | |
|
|
1375 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1376 | if (expect_false (postfork)) |
|
|
1377 | loop_fork (EV_A); |
|
|
1378 | |
783 | /* update fd-related kernel structures */ |
1379 | /* update fd-related kernel structures */ |
784 | fd_reify (); |
1380 | fd_reify (EV_A); |
785 | |
1381 | |
786 | /* calculate blocking time */ |
1382 | /* calculate blocking time */ |
|
|
1383 | { |
|
|
1384 | ev_tstamp block; |
787 | |
1385 | |
788 | /* we only need this for !monotonic clockor timers, but as we basically |
1386 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
789 | always have timers, we just calculate it always */ |
1387 | block = 0.; /* do not block at all */ |
|
|
1388 | else |
|
|
1389 | { |
|
|
1390 | /* update time to cancel out callback processing overhead */ |
790 | #if EV_USE_MONOTONIC |
1391 | #if EV_USE_MONOTONIC |
791 | if (expect_true (have_monotonic)) |
1392 | if (expect_true (have_monotonic)) |
792 | time_update_monotonic (); |
1393 | time_update_monotonic (EV_A); |
793 | else |
1394 | else |
794 | #endif |
1395 | #endif |
795 | { |
1396 | { |
796 | ev_now = ev_time (); |
1397 | ev_rt_now = ev_time (); |
797 | now = ev_now; |
1398 | mn_now = ev_rt_now; |
798 | } |
1399 | } |
799 | |
1400 | |
800 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
801 | block = 0.; |
|
|
802 | else |
|
|
803 | { |
|
|
804 | block = MAX_BLOCKTIME; |
1401 | block = MAX_BLOCKTIME; |
805 | |
1402 | |
806 | if (timercnt) |
1403 | if (timercnt) |
807 | { |
1404 | { |
808 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1405 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
809 | if (block > to) block = to; |
1406 | if (block > to) block = to; |
810 | } |
1407 | } |
811 | |
1408 | |
|
|
1409 | #if EV_PERIODIC_ENABLE |
812 | if (periodiccnt) |
1410 | if (periodiccnt) |
813 | { |
1411 | { |
814 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1412 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
815 | if (block > to) block = to; |
1413 | if (block > to) block = to; |
816 | } |
1414 | } |
|
|
1415 | #endif |
817 | |
1416 | |
818 | if (block < 0.) block = 0.; |
1417 | if (expect_false (block < 0.)) block = 0.; |
819 | } |
1418 | } |
820 | |
1419 | |
821 | method_poll (block); |
1420 | backend_poll (EV_A_ block); |
|
|
1421 | } |
822 | |
1422 | |
823 | /* update ev_now, do magic */ |
1423 | /* update ev_rt_now, do magic */ |
824 | time_update (); |
1424 | time_update (EV_A); |
825 | |
1425 | |
826 | /* queue pending timers and reschedule them */ |
1426 | /* queue pending timers and reschedule them */ |
827 | timers_reify (); /* relative timers called last */ |
1427 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1428 | #if EV_PERIODIC_ENABLE |
828 | periodics_reify (); /* absolute timers called first */ |
1429 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1430 | #endif |
829 | |
1431 | |
830 | /* queue idle watchers unless io or timers are pending */ |
1432 | /* queue idle watchers unless other events are pending */ |
831 | if (!pendingcnt) |
1433 | if (idlecnt && !any_pending (EV_A)) |
832 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1434 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
833 | |
1435 | |
834 | /* queue check watchers, to be executed first */ |
1436 | /* queue check watchers, to be executed first */ |
835 | if (checkcnt) |
1437 | if (expect_false (checkcnt)) |
836 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1438 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
837 | |
1439 | |
838 | call_pending (); |
1440 | call_pending (EV_A); |
839 | } |
|
|
840 | while (!ev_loop_done); |
|
|
841 | |
1441 | |
842 | if (ev_loop_done != 2) |
1442 | if (expect_false (loop_done)) |
|
|
1443 | break; |
|
|
1444 | } |
|
|
1445 | |
|
|
1446 | if (loop_done == EVUNLOOP_ONE) |
|
|
1447 | loop_done = EVUNLOOP_CANCEL; |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | void |
|
|
1451 | ev_unloop (EV_P_ int how) |
|
|
1452 | { |
843 | ev_loop_done = 0; |
1453 | loop_done = how; |
844 | } |
1454 | } |
845 | |
1455 | |
846 | /*****************************************************************************/ |
1456 | /*****************************************************************************/ |
847 | |
1457 | |
848 | static void |
1458 | void inline_size |
849 | wlist_add (WL *head, WL elem) |
1459 | wlist_add (WL *head, WL elem) |
850 | { |
1460 | { |
851 | elem->next = *head; |
1461 | elem->next = *head; |
852 | *head = elem; |
1462 | *head = elem; |
853 | } |
1463 | } |
854 | |
1464 | |
855 | static void |
1465 | void inline_size |
856 | wlist_del (WL *head, WL elem) |
1466 | wlist_del (WL *head, WL elem) |
857 | { |
1467 | { |
858 | while (*head) |
1468 | while (*head) |
859 | { |
1469 | { |
860 | if (*head == elem) |
1470 | if (*head == elem) |
… | |
… | |
865 | |
1475 | |
866 | head = &(*head)->next; |
1476 | head = &(*head)->next; |
867 | } |
1477 | } |
868 | } |
1478 | } |
869 | |
1479 | |
870 | static void |
1480 | void inline_speed |
871 | ev_clear_pending (W w) |
1481 | ev_clear_pending (EV_P_ W w) |
872 | { |
1482 | { |
873 | if (w->pending) |
1483 | if (w->pending) |
874 | { |
1484 | { |
875 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1485 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
876 | w->pending = 0; |
1486 | w->pending = 0; |
877 | } |
1487 | } |
878 | } |
1488 | } |
879 | |
1489 | |
880 | static void |
1490 | void inline_speed |
881 | ev_start (W w, int active) |
1491 | ev_start (EV_P_ W w, int active) |
882 | { |
1492 | { |
883 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1493 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
884 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1494 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
885 | |
1495 | |
886 | w->active = active; |
1496 | w->active = active; |
|
|
1497 | ev_ref (EV_A); |
887 | } |
1498 | } |
888 | |
1499 | |
889 | static void |
1500 | void inline_size |
890 | ev_stop (W w) |
1501 | ev_stop (EV_P_ W w) |
891 | { |
1502 | { |
|
|
1503 | ev_unref (EV_A); |
892 | w->active = 0; |
1504 | w->active = 0; |
893 | } |
1505 | } |
894 | |
1506 | |
895 | /*****************************************************************************/ |
1507 | /*****************************************************************************/ |
896 | |
1508 | |
897 | void |
1509 | void |
898 | ev_io_start (struct ev_io *w) |
1510 | ev_io_start (EV_P_ ev_io *w) |
899 | { |
1511 | { |
900 | int fd = w->fd; |
1512 | int fd = w->fd; |
901 | |
1513 | |
902 | if (ev_is_active (w)) |
1514 | if (expect_false (ev_is_active (w))) |
903 | return; |
1515 | return; |
904 | |
1516 | |
905 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1517 | assert (("ev_io_start called with negative fd", fd >= 0)); |
906 | |
1518 | |
907 | ev_start ((W)w, 1); |
1519 | ev_start (EV_A_ (W)w, 1); |
908 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1520 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
909 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1521 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
910 | |
1522 | |
911 | fd_change (fd); |
1523 | fd_change (EV_A_ fd); |
912 | } |
1524 | } |
913 | |
1525 | |
914 | void |
1526 | void |
915 | ev_io_stop (struct ev_io *w) |
1527 | ev_io_stop (EV_P_ ev_io *w) |
916 | { |
1528 | { |
917 | ev_clear_pending ((W)w); |
1529 | ev_clear_pending (EV_A_ (W)w); |
918 | if (!ev_is_active (w)) |
1530 | if (expect_false (!ev_is_active (w))) |
919 | return; |
1531 | return; |
|
|
1532 | |
|
|
1533 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
920 | |
1534 | |
921 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1535 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
922 | ev_stop ((W)w); |
1536 | ev_stop (EV_A_ (W)w); |
923 | |
1537 | |
924 | fd_change (w->fd); |
1538 | fd_change (EV_A_ w->fd); |
925 | } |
1539 | } |
926 | |
1540 | |
927 | void |
1541 | void |
928 | ev_timer_start (struct ev_timer *w) |
1542 | ev_timer_start (EV_P_ ev_timer *w) |
929 | { |
1543 | { |
930 | if (ev_is_active (w)) |
1544 | if (expect_false (ev_is_active (w))) |
931 | return; |
1545 | return; |
932 | |
1546 | |
933 | w->at += now; |
1547 | ((WT)w)->at += mn_now; |
934 | |
1548 | |
935 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1549 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
936 | |
1550 | |
937 | ev_start ((W)w, ++timercnt); |
1551 | ev_start (EV_A_ (W)w, ++timercnt); |
938 | array_needsize (timers, timermax, timercnt, ); |
1552 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
939 | timers [timercnt - 1] = w; |
1553 | timers [timercnt - 1] = w; |
940 | upheap ((WT *)timers, timercnt - 1); |
1554 | upheap ((WT *)timers, timercnt - 1); |
941 | } |
|
|
942 | |
1555 | |
|
|
1556 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1557 | } |
|
|
1558 | |
943 | void |
1559 | void |
944 | ev_timer_stop (struct ev_timer *w) |
1560 | ev_timer_stop (EV_P_ ev_timer *w) |
945 | { |
1561 | { |
946 | ev_clear_pending ((W)w); |
1562 | ev_clear_pending (EV_A_ (W)w); |
947 | if (!ev_is_active (w)) |
1563 | if (expect_false (!ev_is_active (w))) |
948 | return; |
1564 | return; |
949 | |
1565 | |
950 | if (w->active < timercnt--) |
1566 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1567 | |
|
|
1568 | { |
|
|
1569 | int active = ((W)w)->active; |
|
|
1570 | |
|
|
1571 | if (expect_true (--active < --timercnt)) |
951 | { |
1572 | { |
952 | timers [w->active - 1] = timers [timercnt]; |
1573 | timers [active] = timers [timercnt]; |
953 | downheap ((WT *)timers, timercnt, w->active - 1); |
1574 | adjustheap ((WT *)timers, timercnt, active); |
954 | } |
1575 | } |
|
|
1576 | } |
955 | |
1577 | |
956 | w->at = w->repeat; |
1578 | ((WT)w)->at -= mn_now; |
957 | |
1579 | |
958 | ev_stop ((W)w); |
1580 | ev_stop (EV_A_ (W)w); |
959 | } |
1581 | } |
960 | |
1582 | |
961 | void |
1583 | void |
962 | ev_timer_again (struct ev_timer *w) |
1584 | ev_timer_again (EV_P_ ev_timer *w) |
963 | { |
1585 | { |
964 | if (ev_is_active (w)) |
1586 | if (ev_is_active (w)) |
965 | { |
1587 | { |
966 | if (w->repeat) |
1588 | if (w->repeat) |
967 | { |
1589 | { |
968 | w->at = now + w->repeat; |
1590 | ((WT)w)->at = mn_now + w->repeat; |
969 | downheap ((WT *)timers, timercnt, w->active - 1); |
1591 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
970 | } |
1592 | } |
971 | else |
1593 | else |
972 | ev_timer_stop (w); |
1594 | ev_timer_stop (EV_A_ w); |
973 | } |
1595 | } |
974 | else if (w->repeat) |
1596 | else if (w->repeat) |
|
|
1597 | { |
|
|
1598 | w->at = w->repeat; |
975 | ev_timer_start (w); |
1599 | ev_timer_start (EV_A_ w); |
|
|
1600 | } |
976 | } |
1601 | } |
977 | |
1602 | |
|
|
1603 | #if EV_PERIODIC_ENABLE |
978 | void |
1604 | void |
979 | ev_periodic_start (struct ev_periodic *w) |
1605 | ev_periodic_start (EV_P_ ev_periodic *w) |
980 | { |
1606 | { |
981 | if (ev_is_active (w)) |
1607 | if (expect_false (ev_is_active (w))) |
982 | return; |
1608 | return; |
983 | |
1609 | |
|
|
1610 | if (w->reschedule_cb) |
|
|
1611 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1612 | else if (w->interval) |
|
|
1613 | { |
984 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1614 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
985 | |
|
|
986 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1615 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
987 | if (w->interval) |
|
|
988 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1616 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1617 | } |
989 | |
1618 | |
990 | ev_start ((W)w, ++periodiccnt); |
1619 | ev_start (EV_A_ (W)w, ++periodiccnt); |
991 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1620 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
992 | periodics [periodiccnt - 1] = w; |
1621 | periodics [periodiccnt - 1] = w; |
993 | upheap ((WT *)periodics, periodiccnt - 1); |
1622 | upheap ((WT *)periodics, periodiccnt - 1); |
994 | } |
|
|
995 | |
1623 | |
|
|
1624 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1625 | } |
|
|
1626 | |
996 | void |
1627 | void |
997 | ev_periodic_stop (struct ev_periodic *w) |
1628 | ev_periodic_stop (EV_P_ ev_periodic *w) |
998 | { |
1629 | { |
999 | ev_clear_pending ((W)w); |
1630 | ev_clear_pending (EV_A_ (W)w); |
1000 | if (!ev_is_active (w)) |
1631 | if (expect_false (!ev_is_active (w))) |
1001 | return; |
1632 | return; |
1002 | |
1633 | |
1003 | if (w->active < periodiccnt--) |
1634 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1635 | |
|
|
1636 | { |
|
|
1637 | int active = ((W)w)->active; |
|
|
1638 | |
|
|
1639 | if (expect_true (--active < --periodiccnt)) |
1004 | { |
1640 | { |
1005 | periodics [w->active - 1] = periodics [periodiccnt]; |
1641 | periodics [active] = periodics [periodiccnt]; |
1006 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1642 | adjustheap ((WT *)periodics, periodiccnt, active); |
1007 | } |
1643 | } |
|
|
1644 | } |
1008 | |
1645 | |
1009 | ev_stop ((W)w); |
1646 | ev_stop (EV_A_ (W)w); |
1010 | } |
1647 | } |
1011 | |
1648 | |
1012 | void |
1649 | void |
|
|
1650 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1651 | { |
|
|
1652 | /* TODO: use adjustheap and recalculation */ |
|
|
1653 | ev_periodic_stop (EV_A_ w); |
|
|
1654 | ev_periodic_start (EV_A_ w); |
|
|
1655 | } |
|
|
1656 | #endif |
|
|
1657 | |
|
|
1658 | #ifndef SA_RESTART |
|
|
1659 | # define SA_RESTART 0 |
|
|
1660 | #endif |
|
|
1661 | |
|
|
1662 | void |
1013 | ev_signal_start (struct ev_signal *w) |
1663 | ev_signal_start (EV_P_ ev_signal *w) |
1014 | { |
1664 | { |
|
|
1665 | #if EV_MULTIPLICITY |
|
|
1666 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1667 | #endif |
1015 | if (ev_is_active (w)) |
1668 | if (expect_false (ev_is_active (w))) |
1016 | return; |
1669 | return; |
1017 | |
1670 | |
1018 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1671 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1019 | |
1672 | |
1020 | ev_start ((W)w, 1); |
1673 | ev_start (EV_A_ (W)w, 1); |
1021 | array_needsize (signals, signalmax, w->signum, signals_init); |
1674 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1022 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1675 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1023 | |
1676 | |
1024 | if (!w->next) |
1677 | if (!((WL)w)->next) |
1025 | { |
1678 | { |
|
|
1679 | #if _WIN32 |
|
|
1680 | signal (w->signum, sighandler); |
|
|
1681 | #else |
1026 | struct sigaction sa; |
1682 | struct sigaction sa; |
1027 | sa.sa_handler = sighandler; |
1683 | sa.sa_handler = sighandler; |
1028 | sigfillset (&sa.sa_mask); |
1684 | sigfillset (&sa.sa_mask); |
1029 | sa.sa_flags = 0; |
1685 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1030 | sigaction (w->signum, &sa, 0); |
1686 | sigaction (w->signum, &sa, 0); |
|
|
1687 | #endif |
1031 | } |
1688 | } |
1032 | } |
1689 | } |
1033 | |
1690 | |
1034 | void |
1691 | void |
1035 | ev_signal_stop (struct ev_signal *w) |
1692 | ev_signal_stop (EV_P_ ev_signal *w) |
1036 | { |
1693 | { |
1037 | ev_clear_pending ((W)w); |
1694 | ev_clear_pending (EV_A_ (W)w); |
1038 | if (!ev_is_active (w)) |
1695 | if (expect_false (!ev_is_active (w))) |
1039 | return; |
1696 | return; |
1040 | |
1697 | |
1041 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1698 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1042 | ev_stop ((W)w); |
1699 | ev_stop (EV_A_ (W)w); |
1043 | |
1700 | |
1044 | if (!signals [w->signum - 1].head) |
1701 | if (!signals [w->signum - 1].head) |
1045 | signal (w->signum, SIG_DFL); |
1702 | signal (w->signum, SIG_DFL); |
1046 | } |
1703 | } |
1047 | |
1704 | |
1048 | void |
1705 | void |
|
|
1706 | ev_child_start (EV_P_ ev_child *w) |
|
|
1707 | { |
|
|
1708 | #if EV_MULTIPLICITY |
|
|
1709 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1710 | #endif |
|
|
1711 | if (expect_false (ev_is_active (w))) |
|
|
1712 | return; |
|
|
1713 | |
|
|
1714 | ev_start (EV_A_ (W)w, 1); |
|
|
1715 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | void |
|
|
1719 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1720 | { |
|
|
1721 | ev_clear_pending (EV_A_ (W)w); |
|
|
1722 | if (expect_false (!ev_is_active (w))) |
|
|
1723 | return; |
|
|
1724 | |
|
|
1725 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1726 | ev_stop (EV_A_ (W)w); |
|
|
1727 | } |
|
|
1728 | |
|
|
1729 | #if EV_STAT_ENABLE |
|
|
1730 | |
|
|
1731 | # ifdef _WIN32 |
|
|
1732 | # undef lstat |
|
|
1733 | # define lstat(a,b) _stati64 (a,b) |
|
|
1734 | # endif |
|
|
1735 | |
|
|
1736 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1737 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1738 | |
|
|
1739 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1740 | |
|
|
1741 | #if EV_USE_INOTIFY |
|
|
1742 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1743 | |
|
|
1744 | static void noinline |
|
|
1745 | infy_add (EV_P_ ev_stat *w) |
|
|
1746 | { |
|
|
1747 | 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); |
|
|
1748 | |
|
|
1749 | if (w->wd < 0) |
|
|
1750 | { |
|
|
1751 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1752 | |
|
|
1753 | /* monitor some parent directory for speedup hints */ |
|
|
1754 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1755 | { |
|
|
1756 | char path [4096]; |
|
|
1757 | strcpy (path, w->path); |
|
|
1758 | |
|
|
1759 | do |
|
|
1760 | { |
|
|
1761 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1762 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1763 | |
|
|
1764 | char *pend = strrchr (path, '/'); |
|
|
1765 | |
|
|
1766 | if (!pend) |
|
|
1767 | break; /* whoops, no '/', complain to your admin */ |
|
|
1768 | |
|
|
1769 | *pend = 0; |
|
|
1770 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1771 | } |
|
|
1772 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1773 | } |
|
|
1774 | } |
|
|
1775 | else |
|
|
1776 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1777 | |
|
|
1778 | if (w->wd >= 0) |
|
|
1779 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | static void noinline |
|
|
1783 | infy_del (EV_P_ ev_stat *w) |
|
|
1784 | { |
|
|
1785 | int slot; |
|
|
1786 | int wd = w->wd; |
|
|
1787 | |
|
|
1788 | if (wd < 0) |
|
|
1789 | return; |
|
|
1790 | |
|
|
1791 | w->wd = -2; |
|
|
1792 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1793 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1794 | |
|
|
1795 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1796 | inotify_rm_watch (fs_fd, wd); |
|
|
1797 | } |
|
|
1798 | |
|
|
1799 | static void noinline |
|
|
1800 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1801 | { |
|
|
1802 | if (slot < 0) |
|
|
1803 | /* overflow, need to check for all hahs slots */ |
|
|
1804 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1805 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1806 | else |
|
|
1807 | { |
|
|
1808 | WL w_; |
|
|
1809 | |
|
|
1810 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1811 | { |
|
|
1812 | ev_stat *w = (ev_stat *)w_; |
|
|
1813 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1814 | |
|
|
1815 | if (w->wd == wd || wd == -1) |
|
|
1816 | { |
|
|
1817 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1818 | { |
|
|
1819 | w->wd = -1; |
|
|
1820 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1821 | } |
|
|
1822 | |
|
|
1823 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1824 | } |
|
|
1825 | } |
|
|
1826 | } |
|
|
1827 | } |
|
|
1828 | |
|
|
1829 | static void |
|
|
1830 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1831 | { |
|
|
1832 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1833 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1834 | int ofs; |
|
|
1835 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1836 | |
|
|
1837 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1838 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1839 | } |
|
|
1840 | |
|
|
1841 | void inline_size |
|
|
1842 | infy_init (EV_P) |
|
|
1843 | { |
|
|
1844 | if (fs_fd != -2) |
|
|
1845 | return; |
|
|
1846 | |
|
|
1847 | fs_fd = inotify_init (); |
|
|
1848 | |
|
|
1849 | if (fs_fd >= 0) |
|
|
1850 | { |
|
|
1851 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1852 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1853 | ev_io_start (EV_A_ &fs_w); |
|
|
1854 | } |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | void inline_size |
|
|
1858 | infy_fork (EV_P) |
|
|
1859 | { |
|
|
1860 | int slot; |
|
|
1861 | |
|
|
1862 | if (fs_fd < 0) |
|
|
1863 | return; |
|
|
1864 | |
|
|
1865 | close (fs_fd); |
|
|
1866 | fs_fd = inotify_init (); |
|
|
1867 | |
|
|
1868 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1869 | { |
|
|
1870 | WL w_ = fs_hash [slot].head; |
|
|
1871 | fs_hash [slot].head = 0; |
|
|
1872 | |
|
|
1873 | while (w_) |
|
|
1874 | { |
|
|
1875 | ev_stat *w = (ev_stat *)w_; |
|
|
1876 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1877 | |
|
|
1878 | w->wd = -1; |
|
|
1879 | |
|
|
1880 | if (fs_fd >= 0) |
|
|
1881 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1882 | else |
|
|
1883 | ev_timer_start (EV_A_ &w->timer); |
|
|
1884 | } |
|
|
1885 | |
|
|
1886 | } |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | #endif |
|
|
1890 | |
|
|
1891 | void |
|
|
1892 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1893 | { |
|
|
1894 | if (lstat (w->path, &w->attr) < 0) |
|
|
1895 | w->attr.st_nlink = 0; |
|
|
1896 | else if (!w->attr.st_nlink) |
|
|
1897 | w->attr.st_nlink = 1; |
|
|
1898 | } |
|
|
1899 | |
|
|
1900 | static void noinline |
|
|
1901 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1902 | { |
|
|
1903 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1904 | |
|
|
1905 | /* we copy this here each the time so that */ |
|
|
1906 | /* prev has the old value when the callback gets invoked */ |
|
|
1907 | w->prev = w->attr; |
|
|
1908 | ev_stat_stat (EV_A_ w); |
|
|
1909 | |
|
|
1910 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
1911 | if ( |
|
|
1912 | w->prev.st_dev != w->attr.st_dev |
|
|
1913 | || w->prev.st_ino != w->attr.st_ino |
|
|
1914 | || w->prev.st_mode != w->attr.st_mode |
|
|
1915 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
1916 | || w->prev.st_uid != w->attr.st_uid |
|
|
1917 | || w->prev.st_gid != w->attr.st_gid |
|
|
1918 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
1919 | || w->prev.st_size != w->attr.st_size |
|
|
1920 | || w->prev.st_atime != w->attr.st_atime |
|
|
1921 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
1922 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
1923 | ) { |
|
|
1924 | #if EV_USE_INOTIFY |
|
|
1925 | infy_del (EV_A_ w); |
|
|
1926 | infy_add (EV_A_ w); |
|
|
1927 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1931 | } |
|
|
1932 | } |
|
|
1933 | |
|
|
1934 | void |
|
|
1935 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1936 | { |
|
|
1937 | if (expect_false (ev_is_active (w))) |
|
|
1938 | return; |
|
|
1939 | |
|
|
1940 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1941 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1942 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1943 | |
|
|
1944 | ev_stat_stat (EV_A_ w); |
|
|
1945 | |
|
|
1946 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
1947 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1948 | |
|
|
1949 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1950 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1951 | |
|
|
1952 | #if EV_USE_INOTIFY |
|
|
1953 | infy_init (EV_A); |
|
|
1954 | |
|
|
1955 | if (fs_fd >= 0) |
|
|
1956 | infy_add (EV_A_ w); |
|
|
1957 | else |
|
|
1958 | #endif |
|
|
1959 | ev_timer_start (EV_A_ &w->timer); |
|
|
1960 | |
|
|
1961 | ev_start (EV_A_ (W)w, 1); |
|
|
1962 | } |
|
|
1963 | |
|
|
1964 | void |
|
|
1965 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1966 | { |
|
|
1967 | ev_clear_pending (EV_A_ (W)w); |
|
|
1968 | if (expect_false (!ev_is_active (w))) |
|
|
1969 | return; |
|
|
1970 | |
|
|
1971 | #if EV_USE_INOTIFY |
|
|
1972 | infy_del (EV_A_ w); |
|
|
1973 | #endif |
|
|
1974 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1975 | |
|
|
1976 | ev_stop (EV_A_ (W)w); |
|
|
1977 | } |
|
|
1978 | #endif |
|
|
1979 | |
|
|
1980 | void |
1049 | ev_idle_start (struct ev_idle *w) |
1981 | ev_idle_start (EV_P_ ev_idle *w) |
1050 | { |
1982 | { |
1051 | if (ev_is_active (w)) |
1983 | if (expect_false (ev_is_active (w))) |
1052 | return; |
1984 | return; |
1053 | |
1985 | |
1054 | ev_start ((W)w, ++idlecnt); |
1986 | ev_start (EV_A_ (W)w, ++idlecnt); |
1055 | array_needsize (idles, idlemax, idlecnt, ); |
1987 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1056 | idles [idlecnt - 1] = w; |
1988 | idles [idlecnt - 1] = w; |
1057 | } |
1989 | } |
1058 | |
1990 | |
1059 | void |
1991 | void |
1060 | ev_idle_stop (struct ev_idle *w) |
1992 | ev_idle_stop (EV_P_ ev_idle *w) |
1061 | { |
1993 | { |
1062 | ev_clear_pending ((W)w); |
1994 | ev_clear_pending (EV_A_ (W)w); |
1063 | if (ev_is_active (w)) |
1995 | if (expect_false (!ev_is_active (w))) |
1064 | return; |
1996 | return; |
1065 | |
1997 | |
|
|
1998 | { |
|
|
1999 | int active = ((W)w)->active; |
1066 | idles [w->active - 1] = idles [--idlecnt]; |
2000 | idles [active - 1] = idles [--idlecnt]; |
|
|
2001 | ((W)idles [active - 1])->active = active; |
|
|
2002 | } |
|
|
2003 | |
1067 | ev_stop ((W)w); |
2004 | ev_stop (EV_A_ (W)w); |
1068 | } |
2005 | } |
1069 | |
2006 | |
1070 | void |
2007 | void |
1071 | ev_prepare_start (struct ev_prepare *w) |
2008 | ev_prepare_start (EV_P_ ev_prepare *w) |
1072 | { |
2009 | { |
1073 | if (ev_is_active (w)) |
2010 | if (expect_false (ev_is_active (w))) |
1074 | return; |
2011 | return; |
1075 | |
2012 | |
1076 | ev_start ((W)w, ++preparecnt); |
2013 | ev_start (EV_A_ (W)w, ++preparecnt); |
1077 | array_needsize (prepares, preparemax, preparecnt, ); |
2014 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1078 | prepares [preparecnt - 1] = w; |
2015 | prepares [preparecnt - 1] = w; |
1079 | } |
2016 | } |
1080 | |
2017 | |
1081 | void |
2018 | void |
1082 | ev_prepare_stop (struct ev_prepare *w) |
2019 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1083 | { |
2020 | { |
1084 | ev_clear_pending ((W)w); |
2021 | ev_clear_pending (EV_A_ (W)w); |
1085 | if (ev_is_active (w)) |
2022 | if (expect_false (!ev_is_active (w))) |
1086 | return; |
2023 | return; |
1087 | |
2024 | |
|
|
2025 | { |
|
|
2026 | int active = ((W)w)->active; |
1088 | prepares [w->active - 1] = prepares [--preparecnt]; |
2027 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2028 | ((W)prepares [active - 1])->active = active; |
|
|
2029 | } |
|
|
2030 | |
1089 | ev_stop ((W)w); |
2031 | ev_stop (EV_A_ (W)w); |
1090 | } |
2032 | } |
1091 | |
2033 | |
1092 | void |
2034 | void |
1093 | ev_check_start (struct ev_check *w) |
2035 | ev_check_start (EV_P_ ev_check *w) |
1094 | { |
2036 | { |
1095 | if (ev_is_active (w)) |
2037 | if (expect_false (ev_is_active (w))) |
1096 | return; |
2038 | return; |
1097 | |
2039 | |
1098 | ev_start ((W)w, ++checkcnt); |
2040 | ev_start (EV_A_ (W)w, ++checkcnt); |
1099 | array_needsize (checks, checkmax, checkcnt, ); |
2041 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1100 | checks [checkcnt - 1] = w; |
2042 | checks [checkcnt - 1] = w; |
1101 | } |
2043 | } |
1102 | |
2044 | |
1103 | void |
2045 | void |
1104 | ev_check_stop (struct ev_check *w) |
2046 | ev_check_stop (EV_P_ ev_check *w) |
1105 | { |
2047 | { |
1106 | ev_clear_pending ((W)w); |
2048 | ev_clear_pending (EV_A_ (W)w); |
1107 | if (ev_is_active (w)) |
2049 | if (expect_false (!ev_is_active (w))) |
1108 | return; |
2050 | return; |
1109 | |
2051 | |
|
|
2052 | { |
|
|
2053 | int active = ((W)w)->active; |
1110 | checks [w->active - 1] = checks [--checkcnt]; |
2054 | checks [active - 1] = checks [--checkcnt]; |
|
|
2055 | ((W)checks [active - 1])->active = active; |
|
|
2056 | } |
|
|
2057 | |
1111 | ev_stop ((W)w); |
2058 | ev_stop (EV_A_ (W)w); |
1112 | } |
2059 | } |
1113 | |
2060 | |
1114 | void |
2061 | #if EV_EMBED_ENABLE |
1115 | ev_child_start (struct ev_child *w) |
2062 | void noinline |
|
|
2063 | ev_embed_sweep (EV_P_ ev_embed *w) |
1116 | { |
2064 | { |
|
|
2065 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2066 | } |
|
|
2067 | |
|
|
2068 | static void |
|
|
2069 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2070 | { |
|
|
2071 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2072 | |
1117 | if (ev_is_active (w)) |
2073 | if (ev_cb (w)) |
1118 | return; |
2074 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2075 | else |
|
|
2076 | ev_embed_sweep (loop, w); |
|
|
2077 | } |
1119 | |
2078 | |
|
|
2079 | void |
|
|
2080 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2081 | { |
|
|
2082 | if (expect_false (ev_is_active (w))) |
|
|
2083 | return; |
|
|
2084 | |
|
|
2085 | { |
|
|
2086 | struct ev_loop *loop = w->loop; |
|
|
2087 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2088 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2089 | } |
|
|
2090 | |
|
|
2091 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2092 | ev_io_start (EV_A_ &w->io); |
|
|
2093 | |
1120 | ev_start ((W)w, 1); |
2094 | ev_start (EV_A_ (W)w, 1); |
1121 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1122 | } |
2095 | } |
1123 | |
2096 | |
1124 | void |
2097 | void |
1125 | ev_child_stop (struct ev_child *w) |
2098 | ev_embed_stop (EV_P_ ev_embed *w) |
1126 | { |
2099 | { |
1127 | ev_clear_pending ((W)w); |
2100 | ev_clear_pending (EV_A_ (W)w); |
1128 | if (ev_is_active (w)) |
2101 | if (expect_false (!ev_is_active (w))) |
1129 | return; |
2102 | return; |
1130 | |
2103 | |
1131 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2104 | ev_io_stop (EV_A_ &w->io); |
|
|
2105 | |
1132 | ev_stop ((W)w); |
2106 | ev_stop (EV_A_ (W)w); |
1133 | } |
2107 | } |
|
|
2108 | #endif |
|
|
2109 | |
|
|
2110 | #if EV_FORK_ENABLE |
|
|
2111 | void |
|
|
2112 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2113 | { |
|
|
2114 | if (expect_false (ev_is_active (w))) |
|
|
2115 | return; |
|
|
2116 | |
|
|
2117 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2118 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2119 | forks [forkcnt - 1] = w; |
|
|
2120 | } |
|
|
2121 | |
|
|
2122 | void |
|
|
2123 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2124 | { |
|
|
2125 | ev_clear_pending (EV_A_ (W)w); |
|
|
2126 | if (expect_false (!ev_is_active (w))) |
|
|
2127 | return; |
|
|
2128 | |
|
|
2129 | { |
|
|
2130 | int active = ((W)w)->active; |
|
|
2131 | forks [active - 1] = forks [--forkcnt]; |
|
|
2132 | ((W)forks [active - 1])->active = active; |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | ev_stop (EV_A_ (W)w); |
|
|
2136 | } |
|
|
2137 | #endif |
1134 | |
2138 | |
1135 | /*****************************************************************************/ |
2139 | /*****************************************************************************/ |
1136 | |
2140 | |
1137 | struct ev_once |
2141 | struct ev_once |
1138 | { |
2142 | { |
1139 | struct ev_io io; |
2143 | ev_io io; |
1140 | struct ev_timer to; |
2144 | ev_timer to; |
1141 | void (*cb)(int revents, void *arg); |
2145 | void (*cb)(int revents, void *arg); |
1142 | void *arg; |
2146 | void *arg; |
1143 | }; |
2147 | }; |
1144 | |
2148 | |
1145 | static void |
2149 | static void |
1146 | once_cb (struct ev_once *once, int revents) |
2150 | once_cb (EV_P_ struct ev_once *once, int revents) |
1147 | { |
2151 | { |
1148 | void (*cb)(int revents, void *arg) = once->cb; |
2152 | void (*cb)(int revents, void *arg) = once->cb; |
1149 | void *arg = once->arg; |
2153 | void *arg = once->arg; |
1150 | |
2154 | |
1151 | ev_io_stop (&once->io); |
2155 | ev_io_stop (EV_A_ &once->io); |
1152 | ev_timer_stop (&once->to); |
2156 | ev_timer_stop (EV_A_ &once->to); |
1153 | free (once); |
2157 | ev_free (once); |
1154 | |
2158 | |
1155 | cb (revents, arg); |
2159 | cb (revents, arg); |
1156 | } |
2160 | } |
1157 | |
2161 | |
1158 | static void |
2162 | static void |
1159 | once_cb_io (struct ev_io *w, int revents) |
2163 | once_cb_io (EV_P_ ev_io *w, int revents) |
1160 | { |
2164 | { |
1161 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2165 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1162 | } |
2166 | } |
1163 | |
2167 | |
1164 | static void |
2168 | static void |
1165 | once_cb_to (struct ev_timer *w, int revents) |
2169 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1166 | { |
2170 | { |
1167 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2171 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1168 | } |
2172 | } |
1169 | |
2173 | |
1170 | void |
2174 | void |
1171 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2175 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1172 | { |
2176 | { |
1173 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2177 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1174 | |
2178 | |
1175 | if (!once) |
2179 | if (expect_false (!once)) |
|
|
2180 | { |
1176 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2181 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1177 | else |
2182 | return; |
1178 | { |
2183 | } |
|
|
2184 | |
1179 | once->cb = cb; |
2185 | once->cb = cb; |
1180 | once->arg = arg; |
2186 | once->arg = arg; |
1181 | |
2187 | |
1182 | ev_watcher_init (&once->io, once_cb_io); |
2188 | ev_init (&once->io, once_cb_io); |
1183 | if (fd >= 0) |
2189 | if (fd >= 0) |
1184 | { |
2190 | { |
1185 | ev_io_set (&once->io, fd, events); |
2191 | ev_io_set (&once->io, fd, events); |
1186 | ev_io_start (&once->io); |
2192 | ev_io_start (EV_A_ &once->io); |
1187 | } |
2193 | } |
1188 | |
2194 | |
1189 | ev_watcher_init (&once->to, once_cb_to); |
2195 | ev_init (&once->to, once_cb_to); |
1190 | if (timeout >= 0.) |
2196 | if (timeout >= 0.) |
1191 | { |
2197 | { |
1192 | ev_timer_set (&once->to, timeout, 0.); |
2198 | ev_timer_set (&once->to, timeout, 0.); |
1193 | ev_timer_start (&once->to); |
2199 | ev_timer_start (EV_A_ &once->to); |
1194 | } |
|
|
1195 | } |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | /*****************************************************************************/ |
|
|
1199 | |
|
|
1200 | #if 0 |
|
|
1201 | |
|
|
1202 | struct ev_io wio; |
|
|
1203 | |
|
|
1204 | static void |
|
|
1205 | sin_cb (struct ev_io *w, int revents) |
|
|
1206 | { |
|
|
1207 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1208 | } |
|
|
1209 | |
|
|
1210 | static void |
|
|
1211 | ocb (struct ev_timer *w, int revents) |
|
|
1212 | { |
|
|
1213 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1214 | ev_timer_stop (w); |
|
|
1215 | ev_timer_start (w); |
|
|
1216 | } |
|
|
1217 | |
|
|
1218 | static void |
|
|
1219 | scb (struct ev_signal *w, int revents) |
|
|
1220 | { |
|
|
1221 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1222 | ev_io_stop (&wio); |
|
|
1223 | ev_io_start (&wio); |
|
|
1224 | } |
|
|
1225 | |
|
|
1226 | static void |
|
|
1227 | gcb (struct ev_signal *w, int revents) |
|
|
1228 | { |
|
|
1229 | fprintf (stderr, "generic %x\n", revents); |
|
|
1230 | |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | int main (void) |
|
|
1234 | { |
|
|
1235 | ev_init (0); |
|
|
1236 | |
|
|
1237 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1238 | ev_io_start (&wio); |
|
|
1239 | |
|
|
1240 | struct ev_timer t[10000]; |
|
|
1241 | |
|
|
1242 | #if 0 |
|
|
1243 | int i; |
|
|
1244 | for (i = 0; i < 10000; ++i) |
|
|
1245 | { |
2200 | } |
1246 | struct ev_timer *w = t + i; |
|
|
1247 | ev_watcher_init (w, ocb, i); |
|
|
1248 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1249 | ev_timer_start (w); |
|
|
1250 | if (drand48 () < 0.5) |
|
|
1251 | ev_timer_stop (w); |
|
|
1252 | } |
|
|
1253 | #endif |
|
|
1254 | |
|
|
1255 | struct ev_timer t1; |
|
|
1256 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1257 | ev_timer_start (&t1); |
|
|
1258 | |
|
|
1259 | struct ev_signal sig; |
|
|
1260 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1261 | ev_signal_start (&sig); |
|
|
1262 | |
|
|
1263 | struct ev_check cw; |
|
|
1264 | ev_check_init (&cw, gcb); |
|
|
1265 | ev_check_start (&cw); |
|
|
1266 | |
|
|
1267 | struct ev_idle iw; |
|
|
1268 | ev_idle_init (&iw, gcb); |
|
|
1269 | ev_idle_start (&iw); |
|
|
1270 | |
|
|
1271 | ev_loop (0); |
|
|
1272 | |
|
|
1273 | return 0; |
|
|
1274 | } |
2201 | } |
1275 | |
2202 | |
|
|
2203 | #ifdef __cplusplus |
|
|
2204 | } |
1276 | #endif |
2205 | #endif |
1277 | |
2206 | |
1278 | |
|
|
1279 | |
|
|
1280 | |
|
|