… | |
… | |
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> |
47 | #include <sys/wait.h> |
|
|
48 | #include <sys/time.h> |
|
|
49 | #include <time.h> |
119 | #include <time.h> |
50 | |
120 | |
|
|
121 | #include <signal.h> |
|
|
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
|
|
128 | |
|
|
129 | #ifndef _WIN32 |
|
|
130 | # include <sys/time.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 |
|
|
138 | # endif |
|
|
139 | #endif |
|
|
140 | |
|
|
141 | /**/ |
|
|
142 | |
51 | #ifndef EV_USE_MONOTONIC |
143 | #ifndef EV_USE_MONOTONIC |
52 | # 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 |
|
|
149 | #endif |
|
|
150 | |
|
|
151 | #ifndef EV_USE_SELECT |
|
|
152 | # define EV_USE_SELECT 1 |
|
|
153 | #endif |
|
|
154 | |
|
|
155 | #ifndef EV_USE_POLL |
|
|
156 | # ifdef _WIN32 |
|
|
157 | # define EV_USE_POLL 0 |
|
|
158 | # else |
|
|
159 | # define EV_USE_POLL 1 |
53 | #endif |
160 | # endif |
|
|
161 | #endif |
|
|
162 | |
|
|
163 | #ifndef EV_USE_EPOLL |
|
|
164 | # define EV_USE_EPOLL 0 |
|
|
165 | #endif |
|
|
166 | |
|
|
167 | #ifndef EV_USE_KQUEUE |
|
|
168 | # define EV_USE_KQUEUE 0 |
|
|
169 | #endif |
|
|
170 | |
|
|
171 | #ifndef EV_USE_PORT |
|
|
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 |
|
|
193 | #endif |
|
|
194 | |
|
|
195 | /**/ |
54 | |
196 | |
55 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
56 | # undef EV_USE_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
57 | # define EV_USE_MONOTONIC 0 |
199 | # define EV_USE_MONOTONIC 0 |
58 | #endif |
200 | #endif |
59 | |
201 | |
60 | #ifndef EV_USE_SELECT |
|
|
61 | # define EV_USE_SELECT 1 |
|
|
62 | #endif |
|
|
63 | |
|
|
64 | #ifndef EV_USE_EPOLL |
|
|
65 | # define EV_USE_EPOLL 0 |
|
|
66 | #endif |
|
|
67 | |
|
|
68 | #ifndef CLOCK_REALTIME |
202 | #ifndef CLOCK_REALTIME |
|
|
203 | # undef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 0 |
204 | # define EV_USE_REALTIME 0 |
70 | #endif |
205 | #endif |
71 | #ifndef EV_USE_REALTIME |
206 | |
72 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
207 | #if EV_SELECT_IS_WINSOCKET |
|
|
208 | # include <winsock.h> |
73 | #endif |
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 | |
|
|
219 | /**/ |
|
|
220 | |
|
|
221 | /* |
|
|
222 | * This is used to avoid floating point rounding problems. |
|
|
223 | * It is added to ev_rt_now when scheduling periodics |
|
|
224 | * to ensure progress, time-wise, even when rounding |
|
|
225 | * errors are against us. |
|
|
226 | * This value is good at least till the year 4000 |
|
|
227 | * and intervals up to 20 years. |
|
|
228 | * Better solutions welcome. |
|
|
229 | */ |
|
|
230 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
74 | |
231 | |
75 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
76 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */ |
233 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
77 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
78 | #define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
234 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
79 | |
235 | |
80 | #include "ev.h" |
236 | #if __GNUC__ >= 3 |
|
|
237 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
238 | # define noinline __attribute__ ((noinline)) |
|
|
239 | #else |
|
|
240 | # define expect(expr,value) (expr) |
|
|
241 | # define noinline |
|
|
242 | # if __STDC_VERSION__ < 199901L |
|
|
243 | # define inline |
|
|
244 | # endif |
|
|
245 | #endif |
81 | |
246 | |
|
|
247 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
248 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
249 | #define inline_size static inline |
|
|
250 | |
|
|
251 | #if EV_MINIMAL |
|
|
252 | # define inline_speed static noinline |
|
|
253 | #else |
|
|
254 | # define inline_speed static inline |
|
|
255 | #endif |
|
|
256 | |
|
|
257 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
258 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
259 | |
|
|
260 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
261 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
262 | |
82 | typedef struct ev_watcher *W; |
263 | typedef ev_watcher *W; |
83 | typedef struct ev_watcher_list *WL; |
264 | typedef ev_watcher_list *WL; |
84 | typedef struct ev_watcher_time *WT; |
265 | typedef ev_watcher_time *WT; |
85 | |
266 | |
86 | static ev_tstamp now, diff; /* monotonic clock */ |
267 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
268 | |
|
|
269 | #ifdef _WIN32 |
|
|
270 | # include "ev_win32.c" |
|
|
271 | #endif |
|
|
272 | |
|
|
273 | /*****************************************************************************/ |
|
|
274 | |
|
|
275 | static void (*syserr_cb)(const char *msg); |
|
|
276 | |
|
|
277 | void |
|
|
278 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
279 | { |
|
|
280 | syserr_cb = cb; |
|
|
281 | } |
|
|
282 | |
|
|
283 | static void noinline |
|
|
284 | syserr (const char *msg) |
|
|
285 | { |
|
|
286 | if (!msg) |
|
|
287 | msg = "(libev) system error"; |
|
|
288 | |
|
|
289 | if (syserr_cb) |
|
|
290 | syserr_cb (msg); |
|
|
291 | else |
|
|
292 | { |
|
|
293 | perror (msg); |
|
|
294 | abort (); |
|
|
295 | } |
|
|
296 | } |
|
|
297 | |
|
|
298 | static void *(*alloc)(void *ptr, long size); |
|
|
299 | |
|
|
300 | void |
|
|
301 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
302 | { |
|
|
303 | alloc = cb; |
|
|
304 | } |
|
|
305 | |
|
|
306 | inline_speed void * |
|
|
307 | ev_realloc (void *ptr, long size) |
|
|
308 | { |
|
|
309 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
310 | |
|
|
311 | if (!ptr && size) |
|
|
312 | { |
|
|
313 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
314 | abort (); |
|
|
315 | } |
|
|
316 | |
|
|
317 | return ptr; |
|
|
318 | } |
|
|
319 | |
|
|
320 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
321 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
322 | |
|
|
323 | /*****************************************************************************/ |
|
|
324 | |
|
|
325 | typedef struct |
|
|
326 | { |
|
|
327 | WL head; |
|
|
328 | unsigned char events; |
|
|
329 | unsigned char reify; |
|
|
330 | #if EV_SELECT_IS_WINSOCKET |
|
|
331 | SOCKET handle; |
|
|
332 | #endif |
|
|
333 | } ANFD; |
|
|
334 | |
|
|
335 | typedef struct |
|
|
336 | { |
|
|
337 | W w; |
|
|
338 | int events; |
|
|
339 | } ANPENDING; |
|
|
340 | |
|
|
341 | #if EV_USE_INOTIFY |
|
|
342 | typedef struct |
|
|
343 | { |
|
|
344 | WL head; |
|
|
345 | } ANFS; |
|
|
346 | #endif |
|
|
347 | |
|
|
348 | #if EV_MULTIPLICITY |
|
|
349 | |
|
|
350 | struct ev_loop |
|
|
351 | { |
|
|
352 | ev_tstamp ev_rt_now; |
|
|
353 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
354 | #define VAR(name,decl) decl; |
|
|
355 | #include "ev_vars.h" |
|
|
356 | #undef VAR |
|
|
357 | }; |
|
|
358 | #include "ev_wrap.h" |
|
|
359 | |
|
|
360 | static struct ev_loop default_loop_struct; |
|
|
361 | struct ev_loop *ev_default_loop_ptr; |
|
|
362 | |
|
|
363 | #else |
|
|
364 | |
87 | ev_tstamp ev_now; |
365 | ev_tstamp ev_rt_now; |
88 | int ev_method; |
366 | #define VAR(name,decl) static decl; |
|
|
367 | #include "ev_vars.h" |
|
|
368 | #undef VAR |
89 | |
369 | |
90 | static int have_monotonic; /* runtime */ |
370 | static int ev_default_loop_ptr; |
91 | |
371 | |
92 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
372 | #endif |
93 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
94 | static void (*method_poll)(ev_tstamp timeout); |
|
|
95 | |
373 | |
96 | /*****************************************************************************/ |
374 | /*****************************************************************************/ |
97 | |
375 | |
98 | ev_tstamp |
376 | ev_tstamp |
99 | ev_time (void) |
377 | ev_time (void) |
… | |
… | |
107 | gettimeofday (&tv, 0); |
385 | gettimeofday (&tv, 0); |
108 | return tv.tv_sec + tv.tv_usec * 1e-6; |
386 | return tv.tv_sec + tv.tv_usec * 1e-6; |
109 | #endif |
387 | #endif |
110 | } |
388 | } |
111 | |
389 | |
112 | static ev_tstamp |
390 | ev_tstamp inline_size |
113 | get_clock (void) |
391 | get_clock (void) |
114 | { |
392 | { |
115 | #if EV_USE_MONOTONIC |
393 | #if EV_USE_MONOTONIC |
116 | if (have_monotonic) |
394 | if (expect_true (have_monotonic)) |
117 | { |
395 | { |
118 | struct timespec ts; |
396 | struct timespec ts; |
119 | clock_gettime (CLOCK_MONOTONIC, &ts); |
397 | clock_gettime (CLOCK_MONOTONIC, &ts); |
120 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
398 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
121 | } |
399 | } |
122 | #endif |
400 | #endif |
123 | |
401 | |
124 | return ev_time (); |
402 | return ev_time (); |
125 | } |
403 | } |
126 | |
404 | |
127 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
405 | #if EV_MULTIPLICITY |
|
|
406 | ev_tstamp |
|
|
407 | ev_now (EV_P) |
|
|
408 | { |
|
|
409 | return ev_rt_now; |
|
|
410 | } |
|
|
411 | #endif |
128 | |
412 | |
|
|
413 | int inline_size |
|
|
414 | array_nextsize (int elem, int cur, int cnt) |
|
|
415 | { |
|
|
416 | int ncur = cur + 1; |
|
|
417 | |
|
|
418 | do |
|
|
419 | ncur <<= 1; |
|
|
420 | while (cnt > ncur); |
|
|
421 | |
|
|
422 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
423 | if (elem * ncur > 4096) |
|
|
424 | { |
|
|
425 | ncur *= elem; |
|
|
426 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
427 | ncur = ncur - sizeof (void *) * 4; |
|
|
428 | ncur /= elem; |
|
|
429 | } |
|
|
430 | |
|
|
431 | return ncur; |
|
|
432 | } |
|
|
433 | |
|
|
434 | static noinline void * |
|
|
435 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
436 | { |
|
|
437 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
438 | return ev_realloc (base, elem * *cur); |
|
|
439 | } |
|
|
440 | |
129 | #define array_needsize(base,cur,cnt,init) \ |
441 | #define array_needsize(type,base,cur,cnt,init) \ |
130 | if ((cnt) > cur) \ |
442 | if (expect_false ((cnt) > (cur))) \ |
131 | { \ |
443 | { \ |
132 | int newcnt = cur; \ |
444 | int ocur_ = (cur); \ |
133 | do \ |
445 | (base) = (type *)array_realloc \ |
134 | { \ |
446 | (sizeof (type), (base), &(cur), (cnt)); \ |
135 | newcnt = array_roundsize (base, newcnt << 1); \ |
447 | init ((base) + (ocur_), (cur) - ocur_); \ |
136 | } \ |
448 | } |
137 | while ((cnt) > newcnt); \ |
449 | |
|
|
450 | #if 0 |
|
|
451 | #define array_slim(type,stem) \ |
|
|
452 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
138 | \ |
453 | { \ |
139 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
454 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
140 | init (base + cur, newcnt - cur); \ |
455 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
141 | cur = newcnt; \ |
456 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
142 | } |
457 | } |
|
|
458 | #endif |
|
|
459 | |
|
|
460 | #define array_free(stem, idx) \ |
|
|
461 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
143 | |
462 | |
144 | /*****************************************************************************/ |
463 | /*****************************************************************************/ |
145 | |
464 | |
146 | typedef struct |
465 | void noinline |
|
|
466 | ev_feed_event (EV_P_ void *w, int revents) |
147 | { |
467 | { |
148 | struct ev_io *head; |
468 | W w_ = (W)w; |
149 | unsigned char events; |
469 | int pri = ABSPRI (w_); |
150 | unsigned char reify; |
|
|
151 | } ANFD; |
|
|
152 | |
470 | |
153 | static ANFD *anfds; |
471 | if (expect_false (w_->pending)) |
154 | static int anfdmax; |
472 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
473 | else |
|
|
474 | { |
|
|
475 | w_->pending = ++pendingcnt [pri]; |
|
|
476 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
477 | pendings [pri][w_->pending - 1].w = w_; |
|
|
478 | pendings [pri][w_->pending - 1].events = revents; |
|
|
479 | } |
|
|
480 | } |
155 | |
481 | |
156 | static void |
482 | void inline_size |
|
|
483 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
484 | { |
|
|
485 | int i; |
|
|
486 | |
|
|
487 | for (i = 0; i < eventcnt; ++i) |
|
|
488 | ev_feed_event (EV_A_ events [i], type); |
|
|
489 | } |
|
|
490 | |
|
|
491 | /*****************************************************************************/ |
|
|
492 | |
|
|
493 | void inline_size |
157 | anfds_init (ANFD *base, int count) |
494 | anfds_init (ANFD *base, int count) |
158 | { |
495 | { |
159 | while (count--) |
496 | while (count--) |
160 | { |
497 | { |
161 | base->head = 0; |
498 | base->head = 0; |
… | |
… | |
164 | |
501 | |
165 | ++base; |
502 | ++base; |
166 | } |
503 | } |
167 | } |
504 | } |
168 | |
505 | |
169 | typedef struct |
506 | void inline_speed |
170 | { |
|
|
171 | W w; |
|
|
172 | int events; |
|
|
173 | } ANPENDING; |
|
|
174 | |
|
|
175 | static ANPENDING *pendings; |
|
|
176 | static int pendingmax, pendingcnt; |
|
|
177 | |
|
|
178 | static void |
|
|
179 | event (W w, int events) |
|
|
180 | { |
|
|
181 | if (w->pending) |
|
|
182 | { |
|
|
183 | pendings [w->pending - 1].events |= events; |
|
|
184 | return; |
|
|
185 | } |
|
|
186 | |
|
|
187 | w->pending = ++pendingcnt; |
|
|
188 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
189 | pendings [pendingcnt - 1].w = w; |
|
|
190 | pendings [pendingcnt - 1].events = events; |
|
|
191 | } |
|
|
192 | |
|
|
193 | static void |
|
|
194 | queue_events (W *events, int eventcnt, int type) |
|
|
195 | { |
|
|
196 | int i; |
|
|
197 | |
|
|
198 | for (i = 0; i < eventcnt; ++i) |
|
|
199 | event (events [i], type); |
|
|
200 | } |
|
|
201 | |
|
|
202 | static void |
|
|
203 | fd_event (int fd, int events) |
507 | fd_event (EV_P_ int fd, int revents) |
204 | { |
508 | { |
205 | ANFD *anfd = anfds + fd; |
509 | ANFD *anfd = anfds + fd; |
206 | struct ev_io *w; |
510 | ev_io *w; |
207 | |
511 | |
208 | for (w = anfd->head; w; w = w->next) |
512 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
209 | { |
513 | { |
210 | int ev = w->events & events; |
514 | int ev = w->events & revents; |
211 | |
515 | |
212 | if (ev) |
516 | if (ev) |
213 | event ((W)w, ev); |
517 | ev_feed_event (EV_A_ (W)w, ev); |
214 | } |
518 | } |
215 | } |
519 | } |
216 | |
520 | |
217 | /*****************************************************************************/ |
521 | void |
|
|
522 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
523 | { |
|
|
524 | if (fd >= 0 && fd < anfdmax) |
|
|
525 | fd_event (EV_A_ fd, revents); |
|
|
526 | } |
218 | |
527 | |
219 | static int *fdchanges; |
528 | void inline_size |
220 | static int fdchangemax, fdchangecnt; |
529 | fd_reify (EV_P) |
221 | |
|
|
222 | static void |
|
|
223 | fd_reify (void) |
|
|
224 | { |
530 | { |
225 | int i; |
531 | int i; |
226 | |
532 | |
227 | for (i = 0; i < fdchangecnt; ++i) |
533 | for (i = 0; i < fdchangecnt; ++i) |
228 | { |
534 | { |
229 | int fd = fdchanges [i]; |
535 | int fd = fdchanges [i]; |
230 | ANFD *anfd = anfds + fd; |
536 | ANFD *anfd = anfds + fd; |
231 | struct ev_io *w; |
537 | ev_io *w; |
232 | |
538 | |
233 | int events = 0; |
539 | int events = 0; |
234 | |
540 | |
235 | for (w = anfd->head; w; w = w->next) |
541 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
236 | events |= w->events; |
542 | events |= w->events; |
237 | |
543 | |
|
|
544 | #if EV_SELECT_IS_WINSOCKET |
|
|
545 | if (events) |
|
|
546 | { |
|
|
547 | unsigned long argp; |
|
|
548 | anfd->handle = _get_osfhandle (fd); |
|
|
549 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
550 | } |
|
|
551 | #endif |
|
|
552 | |
238 | anfd->reify = 0; |
553 | anfd->reify = 0; |
239 | |
554 | |
240 | if (anfd->events != events) |
|
|
241 | { |
|
|
242 | method_modify (fd, anfd->events, events); |
555 | backend_modify (EV_A_ fd, anfd->events, events); |
243 | anfd->events = events; |
556 | anfd->events = events; |
244 | } |
|
|
245 | } |
557 | } |
246 | |
558 | |
247 | fdchangecnt = 0; |
559 | fdchangecnt = 0; |
248 | } |
560 | } |
249 | |
561 | |
250 | static void |
562 | void inline_size |
251 | fd_change (int fd) |
563 | fd_change (EV_P_ int fd) |
252 | { |
564 | { |
253 | if (anfds [fd].reify || fdchangecnt < 0) |
565 | if (expect_false (anfds [fd].reify)) |
254 | return; |
566 | return; |
255 | |
567 | |
256 | anfds [fd].reify = 1; |
568 | anfds [fd].reify = 1; |
257 | |
569 | |
258 | ++fdchangecnt; |
570 | ++fdchangecnt; |
259 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
571 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
260 | fdchanges [fdchangecnt - 1] = fd; |
572 | fdchanges [fdchangecnt - 1] = fd; |
261 | } |
573 | } |
262 | |
574 | |
|
|
575 | void inline_speed |
|
|
576 | fd_kill (EV_P_ int fd) |
|
|
577 | { |
|
|
578 | ev_io *w; |
|
|
579 | |
|
|
580 | while ((w = (ev_io *)anfds [fd].head)) |
|
|
581 | { |
|
|
582 | ev_io_stop (EV_A_ w); |
|
|
583 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
584 | } |
|
|
585 | } |
|
|
586 | |
|
|
587 | int inline_size |
|
|
588 | fd_valid (int fd) |
|
|
589 | { |
|
|
590 | #ifdef _WIN32 |
|
|
591 | return _get_osfhandle (fd) != -1; |
|
|
592 | #else |
|
|
593 | return fcntl (fd, F_GETFD) != -1; |
|
|
594 | #endif |
|
|
595 | } |
|
|
596 | |
263 | /* called on EBADF to verify fds */ |
597 | /* called on EBADF to verify fds */ |
264 | static void |
598 | static void noinline |
265 | fd_recheck (void) |
599 | fd_ebadf (EV_P) |
266 | { |
600 | { |
267 | int fd; |
601 | int fd; |
268 | |
602 | |
269 | for (fd = 0; fd < anfdmax; ++fd) |
603 | for (fd = 0; fd < anfdmax; ++fd) |
270 | if (anfds [fd].events) |
604 | if (anfds [fd].events) |
271 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
605 | if (!fd_valid (fd) == -1 && errno == EBADF) |
272 | while (anfds [fd].head) |
606 | fd_kill (EV_A_ fd); |
|
|
607 | } |
|
|
608 | |
|
|
609 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
610 | static void noinline |
|
|
611 | fd_enomem (EV_P) |
|
|
612 | { |
|
|
613 | int fd; |
|
|
614 | |
|
|
615 | for (fd = anfdmax; fd--; ) |
|
|
616 | if (anfds [fd].events) |
273 | { |
617 | { |
274 | ev_io_stop (anfds [fd].head); |
618 | fd_kill (EV_A_ fd); |
275 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE); |
619 | return; |
276 | } |
620 | } |
|
|
621 | } |
|
|
622 | |
|
|
623 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
624 | static void noinline |
|
|
625 | fd_rearm_all (EV_P) |
|
|
626 | { |
|
|
627 | int fd; |
|
|
628 | |
|
|
629 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
630 | if (anfds [fd].events) |
|
|
631 | { |
|
|
632 | anfds [fd].events = 0; |
|
|
633 | fd_change (EV_A_ fd); |
|
|
634 | } |
277 | } |
635 | } |
278 | |
636 | |
279 | /*****************************************************************************/ |
637 | /*****************************************************************************/ |
280 | |
638 | |
281 | static struct ev_timer **timers; |
639 | void inline_speed |
282 | static int timermax, timercnt; |
|
|
283 | |
|
|
284 | static struct ev_periodic **periodics; |
|
|
285 | static int periodicmax, periodiccnt; |
|
|
286 | |
|
|
287 | static void |
|
|
288 | upheap (WT *timers, int k) |
640 | upheap (WT *heap, int k) |
289 | { |
641 | { |
290 | WT w = timers [k]; |
642 | WT w = heap [k]; |
291 | |
643 | |
292 | while (k && timers [k >> 1]->at > w->at) |
644 | while (k && heap [k >> 1]->at > w->at) |
293 | { |
645 | { |
294 | timers [k] = timers [k >> 1]; |
646 | heap [k] = heap [k >> 1]; |
295 | timers [k]->active = k + 1; |
647 | ((W)heap [k])->active = k + 1; |
296 | k >>= 1; |
648 | k >>= 1; |
297 | } |
649 | } |
298 | |
650 | |
299 | timers [k] = w; |
651 | heap [k] = w; |
300 | timers [k]->active = k + 1; |
652 | ((W)heap [k])->active = k + 1; |
301 | |
653 | |
302 | } |
654 | } |
303 | |
655 | |
304 | static void |
656 | void inline_speed |
305 | downheap (WT *timers, int N, int k) |
657 | downheap (WT *heap, int N, int k) |
306 | { |
658 | { |
307 | WT w = timers [k]; |
659 | WT w = heap [k]; |
308 | |
660 | |
309 | while (k < (N >> 1)) |
661 | while (k < (N >> 1)) |
310 | { |
662 | { |
311 | int j = k << 1; |
663 | int j = k << 1; |
312 | |
664 | |
313 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
665 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
314 | ++j; |
666 | ++j; |
315 | |
667 | |
316 | if (w->at <= timers [j]->at) |
668 | if (w->at <= heap [j]->at) |
317 | break; |
669 | break; |
318 | |
670 | |
319 | timers [k] = timers [j]; |
671 | heap [k] = heap [j]; |
320 | timers [k]->active = k + 1; |
672 | ((W)heap [k])->active = k + 1; |
321 | k = j; |
673 | k = j; |
322 | } |
674 | } |
323 | |
675 | |
324 | timers [k] = w; |
676 | heap [k] = w; |
325 | timers [k]->active = k + 1; |
677 | ((W)heap [k])->active = k + 1; |
|
|
678 | } |
|
|
679 | |
|
|
680 | void inline_size |
|
|
681 | adjustheap (WT *heap, int N, int k) |
|
|
682 | { |
|
|
683 | upheap (heap, k); |
|
|
684 | downheap (heap, N, k); |
326 | } |
685 | } |
327 | |
686 | |
328 | /*****************************************************************************/ |
687 | /*****************************************************************************/ |
329 | |
688 | |
330 | typedef struct |
689 | typedef struct |
331 | { |
690 | { |
332 | struct ev_signal *head; |
691 | WL head; |
333 | sig_atomic_t volatile gotsig; |
692 | sig_atomic_t volatile gotsig; |
334 | } ANSIG; |
693 | } ANSIG; |
335 | |
694 | |
336 | static ANSIG *signals; |
695 | static ANSIG *signals; |
337 | static int signalmax; |
696 | static int signalmax; |
338 | |
697 | |
339 | static int sigpipe [2]; |
698 | static int sigpipe [2]; |
340 | static sig_atomic_t volatile gotsig; |
699 | static sig_atomic_t volatile gotsig; |
341 | static struct ev_io sigev; |
700 | static ev_io sigev; |
342 | |
701 | |
343 | static void |
702 | void inline_size |
344 | signals_init (ANSIG *base, int count) |
703 | signals_init (ANSIG *base, int count) |
345 | { |
704 | { |
346 | while (count--) |
705 | while (count--) |
347 | { |
706 | { |
348 | base->head = 0; |
707 | base->head = 0; |
… | |
… | |
353 | } |
712 | } |
354 | |
713 | |
355 | static void |
714 | static void |
356 | sighandler (int signum) |
715 | sighandler (int signum) |
357 | { |
716 | { |
|
|
717 | #if _WIN32 |
|
|
718 | signal (signum, sighandler); |
|
|
719 | #endif |
|
|
720 | |
358 | signals [signum - 1].gotsig = 1; |
721 | signals [signum - 1].gotsig = 1; |
359 | |
722 | |
360 | if (!gotsig) |
723 | if (!gotsig) |
361 | { |
724 | { |
|
|
725 | int old_errno = errno; |
362 | gotsig = 1; |
726 | gotsig = 1; |
363 | write (sigpipe [1], &signum, 1); |
727 | write (sigpipe [1], &signum, 1); |
|
|
728 | errno = old_errno; |
364 | } |
729 | } |
|
|
730 | } |
|
|
731 | |
|
|
732 | void noinline |
|
|
733 | ev_feed_signal_event (EV_P_ int signum) |
|
|
734 | { |
|
|
735 | WL w; |
|
|
736 | |
|
|
737 | #if EV_MULTIPLICITY |
|
|
738 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
739 | #endif |
|
|
740 | |
|
|
741 | --signum; |
|
|
742 | |
|
|
743 | if (signum < 0 || signum >= signalmax) |
|
|
744 | return; |
|
|
745 | |
|
|
746 | signals [signum].gotsig = 0; |
|
|
747 | |
|
|
748 | for (w = signals [signum].head; w; w = w->next) |
|
|
749 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
365 | } |
750 | } |
366 | |
751 | |
367 | static void |
752 | static void |
368 | sigcb (struct ev_io *iow, int revents) |
753 | sigcb (EV_P_ ev_io *iow, int revents) |
369 | { |
754 | { |
370 | struct ev_signal *w; |
|
|
371 | int sig; |
755 | int signum; |
372 | |
756 | |
373 | read (sigpipe [0], &revents, 1); |
757 | read (sigpipe [0], &revents, 1); |
374 | gotsig = 0; |
758 | gotsig = 0; |
375 | |
759 | |
376 | for (sig = signalmax; sig--; ) |
760 | for (signum = signalmax; signum--; ) |
377 | if (signals [sig].gotsig) |
761 | if (signals [signum].gotsig) |
|
|
762 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
763 | } |
|
|
764 | |
|
|
765 | void inline_speed |
|
|
766 | fd_intern (int fd) |
|
|
767 | { |
|
|
768 | #ifdef _WIN32 |
|
|
769 | int arg = 1; |
|
|
770 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
771 | #else |
|
|
772 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
773 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
774 | #endif |
|
|
775 | } |
|
|
776 | |
|
|
777 | static void noinline |
|
|
778 | siginit (EV_P) |
|
|
779 | { |
|
|
780 | fd_intern (sigpipe [0]); |
|
|
781 | fd_intern (sigpipe [1]); |
|
|
782 | |
|
|
783 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
784 | ev_io_start (EV_A_ &sigev); |
|
|
785 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
786 | } |
|
|
787 | |
|
|
788 | /*****************************************************************************/ |
|
|
789 | |
|
|
790 | static ev_child *childs [EV_PID_HASHSIZE]; |
|
|
791 | |
|
|
792 | #ifndef _WIN32 |
|
|
793 | |
|
|
794 | static ev_signal childev; |
|
|
795 | |
|
|
796 | void inline_speed |
|
|
797 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
798 | { |
|
|
799 | ev_child *w; |
|
|
800 | |
|
|
801 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
802 | if (w->pid == pid || !w->pid) |
378 | { |
803 | { |
379 | signals [sig].gotsig = 0; |
804 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
380 | |
805 | w->rpid = pid; |
381 | for (w = signals [sig].head; w; w = w->next) |
806 | w->rstatus = status; |
382 | event ((W)w, EV_SIGNAL); |
807 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
383 | } |
808 | } |
384 | } |
809 | } |
385 | |
|
|
386 | static void |
|
|
387 | siginit (void) |
|
|
388 | { |
|
|
389 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
390 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
391 | |
|
|
392 | /* rather than sort out wether we really need nb, set it */ |
|
|
393 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
394 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
395 | |
|
|
396 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
397 | ev_io_start (&sigev); |
|
|
398 | } |
|
|
399 | |
|
|
400 | /*****************************************************************************/ |
|
|
401 | |
|
|
402 | static struct ev_idle **idles; |
|
|
403 | static int idlemax, idlecnt; |
|
|
404 | |
|
|
405 | static struct ev_prepare **prepares; |
|
|
406 | static int preparemax, preparecnt; |
|
|
407 | |
|
|
408 | static struct ev_check **checks; |
|
|
409 | static int checkmax, checkcnt; |
|
|
410 | |
|
|
411 | /*****************************************************************************/ |
|
|
412 | |
|
|
413 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
414 | static struct ev_signal childev; |
|
|
415 | |
810 | |
416 | #ifndef WCONTINUED |
811 | #ifndef WCONTINUED |
417 | # define WCONTINUED 0 |
812 | # define WCONTINUED 0 |
418 | #endif |
813 | #endif |
419 | |
814 | |
420 | static void |
815 | static void |
421 | childcb (struct ev_signal *sw, int revents) |
816 | childcb (EV_P_ ev_signal *sw, int revents) |
422 | { |
817 | { |
423 | struct ev_child *w; |
|
|
424 | int pid, status; |
818 | int pid, status; |
425 | |
819 | |
|
|
820 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
426 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
821 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
427 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
822 | if (!WCONTINUED |
428 | if (w->pid == pid || w->pid == -1) |
823 | || errno != EINVAL |
429 | { |
824 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
430 | w->status = status; |
825 | return; |
431 | event ((W)w, EV_CHILD); |
826 | |
432 | } |
827 | /* make sure we are called again until all childs have been reaped */ |
|
|
828 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
829 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
830 | |
|
|
831 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
832 | if (EV_PID_HASHSIZE > 1) |
|
|
833 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
433 | } |
834 | } |
|
|
835 | |
|
|
836 | #endif |
434 | |
837 | |
435 | /*****************************************************************************/ |
838 | /*****************************************************************************/ |
436 | |
839 | |
|
|
840 | #if EV_USE_PORT |
|
|
841 | # include "ev_port.c" |
|
|
842 | #endif |
|
|
843 | #if EV_USE_KQUEUE |
|
|
844 | # include "ev_kqueue.c" |
|
|
845 | #endif |
437 | #if EV_USE_EPOLL |
846 | #if EV_USE_EPOLL |
438 | # include "ev_epoll.c" |
847 | # include "ev_epoll.c" |
439 | #endif |
848 | #endif |
|
|
849 | #if EV_USE_POLL |
|
|
850 | # include "ev_poll.c" |
|
|
851 | #endif |
440 | #if EV_USE_SELECT |
852 | #if EV_USE_SELECT |
441 | # include "ev_select.c" |
853 | # include "ev_select.c" |
442 | #endif |
854 | #endif |
443 | |
855 | |
444 | int |
856 | int |
… | |
… | |
451 | ev_version_minor (void) |
863 | ev_version_minor (void) |
452 | { |
864 | { |
453 | return EV_VERSION_MINOR; |
865 | return EV_VERSION_MINOR; |
454 | } |
866 | } |
455 | |
867 | |
456 | int ev_init (int flags) |
868 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
869 | int inline_size |
|
|
870 | enable_secure (void) |
457 | { |
871 | { |
458 | if (!ev_method) |
872 | #ifdef _WIN32 |
|
|
873 | return 0; |
|
|
874 | #else |
|
|
875 | return getuid () != geteuid () |
|
|
876 | || getgid () != getegid (); |
|
|
877 | #endif |
|
|
878 | } |
|
|
879 | |
|
|
880 | unsigned int |
|
|
881 | ev_supported_backends (void) |
|
|
882 | { |
|
|
883 | unsigned int flags = 0; |
|
|
884 | |
|
|
885 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
886 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
887 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
888 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
889 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
890 | |
|
|
891 | return flags; |
|
|
892 | } |
|
|
893 | |
|
|
894 | unsigned int |
|
|
895 | ev_recommended_backends (void) |
|
|
896 | { |
|
|
897 | unsigned int flags = ev_supported_backends (); |
|
|
898 | |
|
|
899 | #ifndef __NetBSD__ |
|
|
900 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
901 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
902 | flags &= ~EVBACKEND_KQUEUE; |
|
|
903 | #endif |
|
|
904 | #ifdef __APPLE__ |
|
|
905 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
906 | flags &= ~EVBACKEND_POLL; |
|
|
907 | #endif |
|
|
908 | |
|
|
909 | return flags; |
|
|
910 | } |
|
|
911 | |
|
|
912 | unsigned int |
|
|
913 | ev_embeddable_backends (void) |
|
|
914 | { |
|
|
915 | return EVBACKEND_EPOLL |
|
|
916 | | EVBACKEND_KQUEUE |
|
|
917 | | EVBACKEND_PORT; |
|
|
918 | } |
|
|
919 | |
|
|
920 | unsigned int |
|
|
921 | ev_backend (EV_P) |
|
|
922 | { |
|
|
923 | return backend; |
|
|
924 | } |
|
|
925 | |
|
|
926 | unsigned int |
|
|
927 | ev_loop_count (EV_P) |
|
|
928 | { |
|
|
929 | return loop_count; |
|
|
930 | } |
|
|
931 | |
|
|
932 | static void noinline |
|
|
933 | loop_init (EV_P_ unsigned int flags) |
|
|
934 | { |
|
|
935 | if (!backend) |
459 | { |
936 | { |
460 | #if EV_USE_MONOTONIC |
937 | #if EV_USE_MONOTONIC |
461 | { |
938 | { |
462 | struct timespec ts; |
939 | struct timespec ts; |
463 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
940 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
464 | have_monotonic = 1; |
941 | have_monotonic = 1; |
465 | } |
942 | } |
466 | #endif |
943 | #endif |
467 | |
944 | |
468 | ev_now = ev_time (); |
945 | ev_rt_now = ev_time (); |
469 | now = get_clock (); |
946 | mn_now = get_clock (); |
|
|
947 | now_floor = mn_now; |
470 | diff = ev_now - now; |
948 | rtmn_diff = ev_rt_now - mn_now; |
471 | |
949 | |
472 | if (pipe (sigpipe)) |
950 | /* pid check not overridable via env */ |
473 | return 0; |
951 | #ifndef _WIN32 |
|
|
952 | if (flags & EVFLAG_FORKCHECK) |
|
|
953 | curpid = getpid (); |
|
|
954 | #endif |
474 | |
955 | |
475 | ev_method = EVMETHOD_NONE; |
956 | if (!(flags & EVFLAG_NOENV) |
|
|
957 | && !enable_secure () |
|
|
958 | && getenv ("LIBEV_FLAGS")) |
|
|
959 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
960 | |
|
|
961 | if (!(flags & 0x0000ffffUL)) |
|
|
962 | flags |= ev_recommended_backends (); |
|
|
963 | |
|
|
964 | backend = 0; |
|
|
965 | backend_fd = -1; |
|
|
966 | #if EV_USE_INOTIFY |
|
|
967 | fs_fd = -2; |
|
|
968 | #endif |
|
|
969 | |
|
|
970 | #if EV_USE_PORT |
|
|
971 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
972 | #endif |
|
|
973 | #if EV_USE_KQUEUE |
|
|
974 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
975 | #endif |
476 | #if EV_USE_EPOLL |
976 | #if EV_USE_EPOLL |
477 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
977 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
978 | #endif |
|
|
979 | #if EV_USE_POLL |
|
|
980 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
478 | #endif |
981 | #endif |
479 | #if EV_USE_SELECT |
982 | #if EV_USE_SELECT |
480 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
983 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
481 | #endif |
984 | #endif |
482 | |
985 | |
483 | if (ev_method) |
986 | ev_init (&sigev, sigcb); |
|
|
987 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
988 | } |
|
|
989 | } |
|
|
990 | |
|
|
991 | static void noinline |
|
|
992 | loop_destroy (EV_P) |
|
|
993 | { |
|
|
994 | int i; |
|
|
995 | |
|
|
996 | #if EV_USE_INOTIFY |
|
|
997 | if (fs_fd >= 0) |
|
|
998 | close (fs_fd); |
|
|
999 | #endif |
|
|
1000 | |
|
|
1001 | if (backend_fd >= 0) |
|
|
1002 | close (backend_fd); |
|
|
1003 | |
|
|
1004 | #if EV_USE_PORT |
|
|
1005 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1006 | #endif |
|
|
1007 | #if EV_USE_KQUEUE |
|
|
1008 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1009 | #endif |
|
|
1010 | #if EV_USE_EPOLL |
|
|
1011 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1012 | #endif |
|
|
1013 | #if EV_USE_POLL |
|
|
1014 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1015 | #endif |
|
|
1016 | #if EV_USE_SELECT |
|
|
1017 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1018 | #endif |
|
|
1019 | |
|
|
1020 | for (i = NUMPRI; i--; ) |
|
|
1021 | { |
|
|
1022 | array_free (pending, [i]); |
|
|
1023 | #if EV_IDLE_ENABLE |
|
|
1024 | array_free (idle, [i]); |
|
|
1025 | #endif |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1029 | array_free (fdchange, EMPTY); |
|
|
1030 | array_free (timer, EMPTY); |
|
|
1031 | #if EV_PERIODIC_ENABLE |
|
|
1032 | array_free (periodic, EMPTY); |
|
|
1033 | #endif |
|
|
1034 | array_free (prepare, EMPTY); |
|
|
1035 | array_free (check, EMPTY); |
|
|
1036 | |
|
|
1037 | backend = 0; |
|
|
1038 | } |
|
|
1039 | |
|
|
1040 | void inline_size infy_fork (EV_P); |
|
|
1041 | |
|
|
1042 | void inline_size |
|
|
1043 | loop_fork (EV_P) |
|
|
1044 | { |
|
|
1045 | #if EV_USE_PORT |
|
|
1046 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1047 | #endif |
|
|
1048 | #if EV_USE_KQUEUE |
|
|
1049 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1050 | #endif |
|
|
1051 | #if EV_USE_EPOLL |
|
|
1052 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1053 | #endif |
|
|
1054 | #if EV_USE_INOTIFY |
|
|
1055 | infy_fork (EV_A); |
|
|
1056 | #endif |
|
|
1057 | |
|
|
1058 | if (ev_is_active (&sigev)) |
|
|
1059 | { |
|
|
1060 | /* default loop */ |
|
|
1061 | |
|
|
1062 | ev_ref (EV_A); |
|
|
1063 | ev_io_stop (EV_A_ &sigev); |
|
|
1064 | close (sigpipe [0]); |
|
|
1065 | close (sigpipe [1]); |
|
|
1066 | |
|
|
1067 | while (pipe (sigpipe)) |
|
|
1068 | syserr ("(libev) error creating pipe"); |
|
|
1069 | |
|
|
1070 | siginit (EV_A); |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | postfork = 0; |
|
|
1074 | } |
|
|
1075 | |
|
|
1076 | #if EV_MULTIPLICITY |
|
|
1077 | struct ev_loop * |
|
|
1078 | ev_loop_new (unsigned int flags) |
|
|
1079 | { |
|
|
1080 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1081 | |
|
|
1082 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1083 | |
|
|
1084 | loop_init (EV_A_ flags); |
|
|
1085 | |
|
|
1086 | if (ev_backend (EV_A)) |
|
|
1087 | return loop; |
|
|
1088 | |
|
|
1089 | return 0; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | void |
|
|
1093 | ev_loop_destroy (EV_P) |
|
|
1094 | { |
|
|
1095 | loop_destroy (EV_A); |
|
|
1096 | ev_free (loop); |
|
|
1097 | } |
|
|
1098 | |
|
|
1099 | void |
|
|
1100 | ev_loop_fork (EV_P) |
|
|
1101 | { |
|
|
1102 | postfork = 1; |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | #endif |
|
|
1106 | |
|
|
1107 | #if EV_MULTIPLICITY |
|
|
1108 | struct ev_loop * |
|
|
1109 | ev_default_loop_init (unsigned int flags) |
|
|
1110 | #else |
|
|
1111 | int |
|
|
1112 | ev_default_loop (unsigned int flags) |
|
|
1113 | #endif |
|
|
1114 | { |
|
|
1115 | if (sigpipe [0] == sigpipe [1]) |
|
|
1116 | if (pipe (sigpipe)) |
|
|
1117 | return 0; |
|
|
1118 | |
|
|
1119 | if (!ev_default_loop_ptr) |
|
|
1120 | { |
|
|
1121 | #if EV_MULTIPLICITY |
|
|
1122 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1123 | #else |
|
|
1124 | ev_default_loop_ptr = 1; |
|
|
1125 | #endif |
|
|
1126 | |
|
|
1127 | loop_init (EV_A_ flags); |
|
|
1128 | |
|
|
1129 | if (ev_backend (EV_A)) |
484 | { |
1130 | { |
485 | ev_watcher_init (&sigev, sigcb); |
|
|
486 | siginit (); |
1131 | siginit (EV_A); |
487 | |
1132 | |
|
|
1133 | #ifndef _WIN32 |
488 | ev_signal_init (&childev, childcb, SIGCHLD); |
1134 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1135 | ev_set_priority (&childev, EV_MAXPRI); |
489 | ev_signal_start (&childev); |
1136 | ev_signal_start (EV_A_ &childev); |
|
|
1137 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1138 | #endif |
490 | } |
1139 | } |
|
|
1140 | else |
|
|
1141 | ev_default_loop_ptr = 0; |
491 | } |
1142 | } |
492 | |
1143 | |
493 | return ev_method; |
1144 | return ev_default_loop_ptr; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | void |
|
|
1148 | ev_default_destroy (void) |
|
|
1149 | { |
|
|
1150 | #if EV_MULTIPLICITY |
|
|
1151 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1152 | #endif |
|
|
1153 | |
|
|
1154 | #ifndef _WIN32 |
|
|
1155 | ev_ref (EV_A); /* child watcher */ |
|
|
1156 | ev_signal_stop (EV_A_ &childev); |
|
|
1157 | #endif |
|
|
1158 | |
|
|
1159 | ev_ref (EV_A); /* signal watcher */ |
|
|
1160 | ev_io_stop (EV_A_ &sigev); |
|
|
1161 | |
|
|
1162 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1163 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1164 | |
|
|
1165 | loop_destroy (EV_A); |
|
|
1166 | } |
|
|
1167 | |
|
|
1168 | void |
|
|
1169 | ev_default_fork (void) |
|
|
1170 | { |
|
|
1171 | #if EV_MULTIPLICITY |
|
|
1172 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1173 | #endif |
|
|
1174 | |
|
|
1175 | if (backend) |
|
|
1176 | postfork = 1; |
494 | } |
1177 | } |
495 | |
1178 | |
496 | /*****************************************************************************/ |
1179 | /*****************************************************************************/ |
497 | |
1180 | |
498 | void |
1181 | void |
499 | ev_fork_prepare (void) |
1182 | ev_invoke (EV_P_ void *w, int revents) |
500 | { |
1183 | { |
501 | /* nop */ |
1184 | EV_CB_INVOKE ((W)w, revents); |
502 | } |
1185 | } |
503 | |
1186 | |
504 | void |
1187 | void inline_speed |
505 | ev_fork_parent (void) |
|
|
506 | { |
|
|
507 | /* nop */ |
|
|
508 | } |
|
|
509 | |
|
|
510 | void |
|
|
511 | ev_fork_child (void) |
|
|
512 | { |
|
|
513 | #if EV_USE_EPOLL |
|
|
514 | if (ev_method == EVMETHOD_EPOLL) |
|
|
515 | epoll_postfork_child (); |
|
|
516 | #endif |
|
|
517 | |
|
|
518 | ev_io_stop (&sigev); |
|
|
519 | close (sigpipe [0]); |
|
|
520 | close (sigpipe [1]); |
|
|
521 | pipe (sigpipe); |
|
|
522 | siginit (); |
|
|
523 | } |
|
|
524 | |
|
|
525 | /*****************************************************************************/ |
|
|
526 | |
|
|
527 | static void |
|
|
528 | call_pending (void) |
1188 | call_pending (EV_P) |
529 | { |
1189 | { |
|
|
1190 | int pri; |
|
|
1191 | |
|
|
1192 | for (pri = NUMPRI; pri--; ) |
530 | while (pendingcnt) |
1193 | while (pendingcnt [pri]) |
531 | { |
1194 | { |
532 | ANPENDING *p = pendings + --pendingcnt; |
1195 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
533 | |
1196 | |
534 | if (p->w) |
1197 | if (expect_true (p->w)) |
535 | { |
1198 | { |
|
|
1199 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1200 | |
536 | p->w->pending = 0; |
1201 | p->w->pending = 0; |
537 | p->w->cb (p->w, p->events); |
1202 | EV_CB_INVOKE (p->w, p->events); |
538 | } |
1203 | } |
539 | } |
1204 | } |
540 | } |
1205 | } |
541 | |
1206 | |
542 | static void |
1207 | void inline_size |
543 | timers_reify (void) |
1208 | timers_reify (EV_P) |
544 | { |
1209 | { |
545 | while (timercnt && timers [0]->at <= now) |
1210 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
546 | { |
1211 | { |
547 | struct ev_timer *w = timers [0]; |
1212 | ev_timer *w = timers [0]; |
|
|
1213 | |
|
|
1214 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
548 | |
1215 | |
549 | /* first reschedule or stop timer */ |
1216 | /* first reschedule or stop timer */ |
550 | if (w->repeat) |
1217 | if (w->repeat) |
551 | { |
1218 | { |
552 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1219 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1220 | |
553 | w->at = now + w->repeat; |
1221 | ((WT)w)->at += w->repeat; |
|
|
1222 | if (((WT)w)->at < mn_now) |
|
|
1223 | ((WT)w)->at = mn_now; |
|
|
1224 | |
554 | downheap ((WT *)timers, timercnt, 0); |
1225 | downheap ((WT *)timers, timercnt, 0); |
555 | } |
1226 | } |
556 | else |
1227 | else |
557 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1228 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
558 | |
1229 | |
559 | event ((W)w, EV_TIMEOUT); |
1230 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
560 | } |
1231 | } |
561 | } |
1232 | } |
562 | |
1233 | |
563 | static void |
1234 | #if EV_PERIODIC_ENABLE |
|
|
1235 | void inline_size |
564 | periodics_reify (void) |
1236 | periodics_reify (EV_P) |
565 | { |
1237 | { |
566 | while (periodiccnt && periodics [0]->at <= ev_now) |
1238 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
567 | { |
1239 | { |
568 | struct ev_periodic *w = periodics [0]; |
1240 | ev_periodic *w = periodics [0]; |
|
|
1241 | |
|
|
1242 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
569 | |
1243 | |
570 | /* first reschedule or stop timer */ |
1244 | /* first reschedule or stop timer */ |
571 | if (w->interval) |
1245 | if (w->reschedule_cb) |
572 | { |
1246 | { |
|
|
1247 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1248 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1249 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1250 | } |
|
|
1251 | else if (w->interval) |
|
|
1252 | { |
573 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1253 | ((WT)w)->at = w->offset + floor ((ev_rt_now + TIME_EPSILON - w->offset) / w->interval + 1.) * w->interval; |
574 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1254 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
575 | downheap ((WT *)periodics, periodiccnt, 0); |
1255 | downheap ((WT *)periodics, periodiccnt, 0); |
576 | } |
1256 | } |
577 | else |
1257 | else |
578 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1258 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
579 | |
1259 | |
580 | event ((W)w, EV_PERIODIC); |
1260 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
581 | } |
1261 | } |
582 | } |
1262 | } |
583 | |
1263 | |
584 | static void |
1264 | static void noinline |
585 | periodics_reschedule (ev_tstamp diff) |
1265 | periodics_reschedule (EV_P) |
586 | { |
1266 | { |
587 | int i; |
1267 | int i; |
588 | |
1268 | |
589 | /* adjust periodics after time jump */ |
1269 | /* adjust periodics after time jump */ |
590 | for (i = 0; i < periodiccnt; ++i) |
1270 | for (i = 0; i < periodiccnt; ++i) |
591 | { |
1271 | { |
592 | struct ev_periodic *w = periodics [i]; |
1272 | ev_periodic *w = periodics [i]; |
593 | |
1273 | |
|
|
1274 | if (w->reschedule_cb) |
|
|
1275 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
594 | if (w->interval) |
1276 | else if (w->interval) |
|
|
1277 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1278 | } |
|
|
1279 | |
|
|
1280 | /* now rebuild the heap */ |
|
|
1281 | for (i = periodiccnt >> 1; i--; ) |
|
|
1282 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1283 | } |
|
|
1284 | #endif |
|
|
1285 | |
|
|
1286 | #if EV_IDLE_ENABLE |
|
|
1287 | void inline_size |
|
|
1288 | idle_reify (EV_P) |
|
|
1289 | { |
|
|
1290 | if (expect_false (idleall)) |
|
|
1291 | { |
|
|
1292 | int pri; |
|
|
1293 | |
|
|
1294 | for (pri = NUMPRI; pri--; ) |
595 | { |
1295 | { |
596 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1296 | if (pendingcnt [pri]) |
|
|
1297 | break; |
597 | |
1298 | |
598 | if (fabs (diff) >= 1e-4) |
1299 | if (idlecnt [pri]) |
599 | { |
1300 | { |
600 | ev_periodic_stop (w); |
1301 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
601 | ev_periodic_start (w); |
1302 | break; |
602 | |
|
|
603 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
604 | } |
1303 | } |
605 | } |
1304 | } |
606 | } |
1305 | } |
607 | } |
1306 | } |
|
|
1307 | #endif |
608 | |
1308 | |
609 | static void |
1309 | int inline_size |
|
|
1310 | time_update_monotonic (EV_P) |
|
|
1311 | { |
|
|
1312 | mn_now = get_clock (); |
|
|
1313 | |
|
|
1314 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1315 | { |
|
|
1316 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1317 | return 0; |
|
|
1318 | } |
|
|
1319 | else |
|
|
1320 | { |
|
|
1321 | now_floor = mn_now; |
|
|
1322 | ev_rt_now = ev_time (); |
|
|
1323 | return 1; |
|
|
1324 | } |
|
|
1325 | } |
|
|
1326 | |
|
|
1327 | void inline_size |
610 | time_update (void) |
1328 | time_update (EV_P) |
611 | { |
1329 | { |
612 | int i; |
1330 | int i; |
613 | |
1331 | |
614 | ev_now = ev_time (); |
1332 | #if EV_USE_MONOTONIC |
615 | |
|
|
616 | if (have_monotonic) |
1333 | if (expect_true (have_monotonic)) |
617 | { |
1334 | { |
618 | ev_tstamp odiff = diff; |
1335 | if (time_update_monotonic (EV_A)) |
619 | |
|
|
620 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
621 | { |
1336 | { |
622 | now = get_clock (); |
1337 | ev_tstamp odiff = rtmn_diff; |
|
|
1338 | |
|
|
1339 | /* loop a few times, before making important decisions. |
|
|
1340 | * on the choice of "4": one iteration isn't enough, |
|
|
1341 | * in case we get preempted during the calls to |
|
|
1342 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1343 | * to succeed in that case, though. and looping a few more times |
|
|
1344 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1345 | * in the unlikely event of having been preempted here. |
|
|
1346 | */ |
|
|
1347 | for (i = 4; --i; ) |
|
|
1348 | { |
623 | diff = ev_now - now; |
1349 | rtmn_diff = ev_rt_now - mn_now; |
624 | |
1350 | |
625 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1351 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
626 | return; /* all is well */ |
1352 | return; /* all is well */ |
627 | |
1353 | |
628 | ev_now = ev_time (); |
1354 | ev_rt_now = ev_time (); |
|
|
1355 | mn_now = get_clock (); |
|
|
1356 | now_floor = mn_now; |
|
|
1357 | } |
|
|
1358 | |
|
|
1359 | # if EV_PERIODIC_ENABLE |
|
|
1360 | periodics_reschedule (EV_A); |
|
|
1361 | # endif |
|
|
1362 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1363 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
629 | } |
1364 | } |
630 | |
|
|
631 | periodics_reschedule (diff - odiff); |
|
|
632 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
633 | } |
1365 | } |
634 | else |
1366 | else |
|
|
1367 | #endif |
635 | { |
1368 | { |
636 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
1369 | ev_rt_now = ev_time (); |
|
|
1370 | |
|
|
1371 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
637 | { |
1372 | { |
|
|
1373 | #if EV_PERIODIC_ENABLE |
638 | periodics_reschedule (ev_now - now); |
1374 | periodics_reschedule (EV_A); |
|
|
1375 | #endif |
639 | |
1376 | |
640 | /* adjust timers. this is easy, as the offset is the same for all */ |
1377 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
641 | for (i = 0; i < timercnt; ++i) |
1378 | for (i = 0; i < timercnt; ++i) |
642 | timers [i]->at += diff; |
1379 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
643 | } |
1380 | } |
644 | |
1381 | |
645 | now = ev_now; |
1382 | mn_now = ev_rt_now; |
646 | } |
1383 | } |
647 | } |
1384 | } |
648 | |
1385 | |
649 | int ev_loop_done; |
1386 | void |
|
|
1387 | ev_ref (EV_P) |
|
|
1388 | { |
|
|
1389 | ++activecnt; |
|
|
1390 | } |
650 | |
1391 | |
|
|
1392 | void |
|
|
1393 | ev_unref (EV_P) |
|
|
1394 | { |
|
|
1395 | --activecnt; |
|
|
1396 | } |
|
|
1397 | |
|
|
1398 | static int loop_done; |
|
|
1399 | |
|
|
1400 | void |
651 | void ev_loop (int flags) |
1401 | ev_loop (EV_P_ int flags) |
652 | { |
1402 | { |
653 | double block; |
|
|
654 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1403 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1404 | ? EVUNLOOP_ONE |
|
|
1405 | : EVUNLOOP_CANCEL; |
|
|
1406 | |
|
|
1407 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
655 | |
1408 | |
656 | do |
1409 | do |
657 | { |
1410 | { |
|
|
1411 | #ifndef _WIN32 |
|
|
1412 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1413 | if (expect_false (getpid () != curpid)) |
|
|
1414 | { |
|
|
1415 | curpid = getpid (); |
|
|
1416 | postfork = 1; |
|
|
1417 | } |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #if EV_FORK_ENABLE |
|
|
1421 | /* we might have forked, so queue fork handlers */ |
|
|
1422 | if (expect_false (postfork)) |
|
|
1423 | if (forkcnt) |
|
|
1424 | { |
|
|
1425 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1426 | call_pending (EV_A); |
|
|
1427 | } |
|
|
1428 | #endif |
|
|
1429 | |
658 | /* queue check watchers (and execute them) */ |
1430 | /* queue prepare watchers (and execute them) */ |
659 | if (preparecnt) |
1431 | if (expect_false (preparecnt)) |
660 | { |
1432 | { |
661 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1433 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
662 | call_pending (); |
1434 | call_pending (EV_A); |
663 | } |
1435 | } |
664 | |
1436 | |
|
|
1437 | if (expect_false (!activecnt)) |
|
|
1438 | break; |
|
|
1439 | |
|
|
1440 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1441 | if (expect_false (postfork)) |
|
|
1442 | loop_fork (EV_A); |
|
|
1443 | |
665 | /* update fd-related kernel structures */ |
1444 | /* update fd-related kernel structures */ |
666 | fd_reify (); |
1445 | fd_reify (EV_A); |
667 | |
1446 | |
668 | /* calculate blocking time */ |
1447 | /* calculate blocking time */ |
|
|
1448 | { |
|
|
1449 | ev_tstamp block; |
669 | |
1450 | |
670 | /* we only need this for !monotonic clockor timers, but as we basically |
1451 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
671 | always have timers, we just calculate it always */ |
1452 | block = 0.; /* do not block at all */ |
672 | ev_now = ev_time (); |
|
|
673 | |
|
|
674 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
675 | block = 0.; |
|
|
676 | else |
1453 | else |
677 | { |
1454 | { |
|
|
1455 | /* update time to cancel out callback processing overhead */ |
|
|
1456 | #if EV_USE_MONOTONIC |
|
|
1457 | if (expect_true (have_monotonic)) |
|
|
1458 | time_update_monotonic (EV_A); |
|
|
1459 | else |
|
|
1460 | #endif |
|
|
1461 | { |
|
|
1462 | ev_rt_now = ev_time (); |
|
|
1463 | mn_now = ev_rt_now; |
|
|
1464 | } |
|
|
1465 | |
678 | block = MAX_BLOCKTIME; |
1466 | block = MAX_BLOCKTIME; |
679 | |
1467 | |
680 | if (timercnt) |
1468 | if (timercnt) |
681 | { |
1469 | { |
682 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
1470 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
683 | if (block > to) block = to; |
1471 | if (block > to) block = to; |
684 | } |
1472 | } |
685 | |
1473 | |
|
|
1474 | #if EV_PERIODIC_ENABLE |
686 | if (periodiccnt) |
1475 | if (periodiccnt) |
687 | { |
1476 | { |
688 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1477 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
689 | if (block > to) block = to; |
1478 | if (block > to) block = to; |
690 | } |
1479 | } |
|
|
1480 | #endif |
691 | |
1481 | |
692 | if (block < 0.) block = 0.; |
1482 | if (expect_false (block < 0.)) block = 0.; |
693 | } |
1483 | } |
694 | |
1484 | |
695 | method_poll (block); |
1485 | ++loop_count; |
|
|
1486 | backend_poll (EV_A_ block); |
|
|
1487 | } |
696 | |
1488 | |
697 | /* update ev_now, do magic */ |
1489 | /* update ev_rt_now, do magic */ |
698 | time_update (); |
1490 | time_update (EV_A); |
699 | |
1491 | |
700 | /* queue pending timers and reschedule them */ |
1492 | /* queue pending timers and reschedule them */ |
701 | timers_reify (); /* relative timers called last */ |
1493 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1494 | #if EV_PERIODIC_ENABLE |
702 | periodics_reify (); /* absolute timers called first */ |
1495 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1496 | #endif |
703 | |
1497 | |
|
|
1498 | #if EV_IDLE_ENABLE |
704 | /* queue idle watchers unless io or timers are pending */ |
1499 | /* queue idle watchers unless other events are pending */ |
705 | if (!pendingcnt) |
1500 | idle_reify (EV_A); |
706 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1501 | #endif |
707 | |
1502 | |
708 | /* queue check watchers, to be executed first */ |
1503 | /* queue check watchers, to be executed first */ |
709 | if (checkcnt) |
1504 | if (expect_false (checkcnt)) |
710 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1505 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
711 | |
1506 | |
712 | call_pending (); |
1507 | call_pending (EV_A); |
713 | } |
|
|
714 | while (!ev_loop_done); |
|
|
715 | |
1508 | |
716 | if (ev_loop_done != 2) |
1509 | } |
|
|
1510 | while (expect_true (activecnt && !loop_done)); |
|
|
1511 | |
|
|
1512 | if (loop_done == EVUNLOOP_ONE) |
|
|
1513 | loop_done = EVUNLOOP_CANCEL; |
|
|
1514 | } |
|
|
1515 | |
|
|
1516 | void |
|
|
1517 | ev_unloop (EV_P_ int how) |
|
|
1518 | { |
717 | ev_loop_done = 0; |
1519 | loop_done = how; |
718 | } |
1520 | } |
719 | |
1521 | |
720 | /*****************************************************************************/ |
1522 | /*****************************************************************************/ |
721 | |
1523 | |
722 | static void |
1524 | void inline_size |
723 | wlist_add (WL *head, WL elem) |
1525 | wlist_add (WL *head, WL elem) |
724 | { |
1526 | { |
725 | elem->next = *head; |
1527 | elem->next = *head; |
726 | *head = elem; |
1528 | *head = elem; |
727 | } |
1529 | } |
728 | |
1530 | |
729 | static void |
1531 | void inline_size |
730 | wlist_del (WL *head, WL elem) |
1532 | wlist_del (WL *head, WL elem) |
731 | { |
1533 | { |
732 | while (*head) |
1534 | while (*head) |
733 | { |
1535 | { |
734 | if (*head == elem) |
1536 | if (*head == elem) |
… | |
… | |
739 | |
1541 | |
740 | head = &(*head)->next; |
1542 | head = &(*head)->next; |
741 | } |
1543 | } |
742 | } |
1544 | } |
743 | |
1545 | |
744 | static void |
1546 | void inline_speed |
745 | ev_clear_pending (W w) |
1547 | clear_pending (EV_P_ W w) |
746 | { |
1548 | { |
747 | if (w->pending) |
1549 | if (w->pending) |
748 | { |
1550 | { |
749 | pendings [w->pending - 1].w = 0; |
1551 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
750 | w->pending = 0; |
1552 | w->pending = 0; |
751 | } |
1553 | } |
752 | } |
1554 | } |
753 | |
1555 | |
754 | static void |
1556 | int |
|
|
1557 | ev_clear_pending (EV_P_ void *w) |
|
|
1558 | { |
|
|
1559 | W w_ = (W)w; |
|
|
1560 | int pending = w_->pending; |
|
|
1561 | |
|
|
1562 | if (expect_true (pending)) |
|
|
1563 | { |
|
|
1564 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1565 | w_->pending = 0; |
|
|
1566 | p->w = 0; |
|
|
1567 | return p->events; |
|
|
1568 | } |
|
|
1569 | else |
|
|
1570 | return 0; |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | void inline_size |
|
|
1574 | pri_adjust (EV_P_ W w) |
|
|
1575 | { |
|
|
1576 | int pri = w->priority; |
|
|
1577 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1578 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1579 | w->priority = pri; |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | void inline_speed |
755 | ev_start (W w, int active) |
1583 | ev_start (EV_P_ W w, int active) |
756 | { |
1584 | { |
|
|
1585 | pri_adjust (EV_A_ w); |
757 | w->active = active; |
1586 | w->active = active; |
|
|
1587 | ev_ref (EV_A); |
758 | } |
1588 | } |
759 | |
1589 | |
760 | static void |
1590 | void inline_size |
761 | ev_stop (W w) |
1591 | ev_stop (EV_P_ W w) |
762 | { |
1592 | { |
|
|
1593 | ev_unref (EV_A); |
763 | w->active = 0; |
1594 | w->active = 0; |
764 | } |
1595 | } |
765 | |
1596 | |
766 | /*****************************************************************************/ |
1597 | /*****************************************************************************/ |
767 | |
1598 | |
768 | void |
1599 | void noinline |
769 | ev_io_start (struct ev_io *w) |
1600 | ev_io_start (EV_P_ ev_io *w) |
770 | { |
1601 | { |
771 | int fd = w->fd; |
1602 | int fd = w->fd; |
772 | |
1603 | |
773 | if (ev_is_active (w)) |
1604 | if (expect_false (ev_is_active (w))) |
774 | return; |
1605 | return; |
775 | |
1606 | |
776 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1607 | assert (("ev_io_start called with negative fd", fd >= 0)); |
777 | |
1608 | |
778 | ev_start ((W)w, 1); |
1609 | ev_start (EV_A_ (W)w, 1); |
779 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1610 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
780 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1611 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
781 | |
1612 | |
782 | fd_change (fd); |
1613 | fd_change (EV_A_ fd); |
783 | } |
1614 | } |
784 | |
1615 | |
785 | void |
1616 | void noinline |
786 | ev_io_stop (struct ev_io *w) |
1617 | ev_io_stop (EV_P_ ev_io *w) |
787 | { |
1618 | { |
788 | ev_clear_pending ((W)w); |
1619 | clear_pending (EV_A_ (W)w); |
789 | if (!ev_is_active (w)) |
1620 | if (expect_false (!ev_is_active (w))) |
790 | return; |
1621 | return; |
|
|
1622 | |
|
|
1623 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
791 | |
1624 | |
792 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1625 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
793 | ev_stop ((W)w); |
1626 | ev_stop (EV_A_ (W)w); |
794 | |
1627 | |
795 | fd_change (w->fd); |
1628 | fd_change (EV_A_ w->fd); |
796 | } |
1629 | } |
797 | |
1630 | |
798 | void |
1631 | void noinline |
799 | ev_timer_start (struct ev_timer *w) |
1632 | ev_timer_start (EV_P_ ev_timer *w) |
800 | { |
1633 | { |
801 | if (ev_is_active (w)) |
1634 | if (expect_false (ev_is_active (w))) |
802 | return; |
1635 | return; |
803 | |
1636 | |
804 | w->at += now; |
1637 | ((WT)w)->at += mn_now; |
805 | |
1638 | |
806 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1639 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
807 | |
1640 | |
808 | ev_start ((W)w, ++timercnt); |
1641 | ev_start (EV_A_ (W)w, ++timercnt); |
809 | array_needsize (timers, timermax, timercnt, ); |
1642 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
810 | timers [timercnt - 1] = w; |
1643 | timers [timercnt - 1] = w; |
811 | upheap ((WT *)timers, timercnt - 1); |
1644 | upheap ((WT *)timers, timercnt - 1); |
812 | } |
|
|
813 | |
1645 | |
814 | void |
1646 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1647 | } |
|
|
1648 | |
|
|
1649 | void noinline |
815 | ev_timer_stop (struct ev_timer *w) |
1650 | ev_timer_stop (EV_P_ ev_timer *w) |
816 | { |
1651 | { |
817 | ev_clear_pending ((W)w); |
1652 | clear_pending (EV_A_ (W)w); |
818 | if (!ev_is_active (w)) |
1653 | if (expect_false (!ev_is_active (w))) |
819 | return; |
1654 | return; |
820 | |
1655 | |
821 | if (w->active < timercnt--) |
1656 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1657 | |
|
|
1658 | { |
|
|
1659 | int active = ((W)w)->active; |
|
|
1660 | |
|
|
1661 | if (expect_true (--active < --timercnt)) |
822 | { |
1662 | { |
823 | timers [w->active - 1] = timers [timercnt]; |
1663 | timers [active] = timers [timercnt]; |
824 | downheap ((WT *)timers, timercnt, w->active - 1); |
1664 | adjustheap ((WT *)timers, timercnt, active); |
825 | } |
1665 | } |
|
|
1666 | } |
826 | |
1667 | |
827 | w->at = w->repeat; |
1668 | ((WT)w)->at -= mn_now; |
828 | |
1669 | |
829 | ev_stop ((W)w); |
1670 | ev_stop (EV_A_ (W)w); |
830 | } |
1671 | } |
831 | |
1672 | |
832 | void |
1673 | void noinline |
833 | ev_timer_again (struct ev_timer *w) |
1674 | ev_timer_again (EV_P_ ev_timer *w) |
834 | { |
1675 | { |
835 | if (ev_is_active (w)) |
1676 | if (ev_is_active (w)) |
836 | { |
1677 | { |
837 | if (w->repeat) |
1678 | if (w->repeat) |
838 | { |
1679 | { |
839 | w->at = now + w->repeat; |
1680 | ((WT)w)->at = mn_now + w->repeat; |
840 | downheap ((WT *)timers, timercnt, w->active - 1); |
1681 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
841 | } |
1682 | } |
842 | else |
1683 | else |
843 | ev_timer_stop (w); |
1684 | ev_timer_stop (EV_A_ w); |
844 | } |
1685 | } |
845 | else if (w->repeat) |
1686 | else if (w->repeat) |
|
|
1687 | { |
|
|
1688 | w->at = w->repeat; |
846 | ev_timer_start (w); |
1689 | ev_timer_start (EV_A_ w); |
|
|
1690 | } |
847 | } |
1691 | } |
848 | |
1692 | |
849 | void |
1693 | #if EV_PERIODIC_ENABLE |
|
|
1694 | void noinline |
850 | ev_periodic_start (struct ev_periodic *w) |
1695 | ev_periodic_start (EV_P_ ev_periodic *w) |
851 | { |
1696 | { |
852 | if (ev_is_active (w)) |
1697 | if (expect_false (ev_is_active (w))) |
853 | return; |
1698 | return; |
854 | |
1699 | |
|
|
1700 | if (w->reschedule_cb) |
|
|
1701 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1702 | else if (w->interval) |
|
|
1703 | { |
855 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1704 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
856 | |
|
|
857 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1705 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
858 | if (w->interval) |
|
|
859 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1706 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1707 | } |
|
|
1708 | else |
|
|
1709 | ((WT)w)->at = w->offset; |
860 | |
1710 | |
861 | ev_start ((W)w, ++periodiccnt); |
1711 | ev_start (EV_A_ (W)w, ++periodiccnt); |
862 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1712 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
863 | periodics [periodiccnt - 1] = w; |
1713 | periodics [periodiccnt - 1] = w; |
864 | upheap ((WT *)periodics, periodiccnt - 1); |
1714 | upheap ((WT *)periodics, periodiccnt - 1); |
865 | } |
|
|
866 | |
1715 | |
867 | void |
1716 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | void noinline |
868 | ev_periodic_stop (struct ev_periodic *w) |
1720 | ev_periodic_stop (EV_P_ ev_periodic *w) |
869 | { |
1721 | { |
870 | ev_clear_pending ((W)w); |
1722 | clear_pending (EV_A_ (W)w); |
871 | if (!ev_is_active (w)) |
1723 | if (expect_false (!ev_is_active (w))) |
872 | return; |
1724 | return; |
873 | |
1725 | |
874 | if (w->active < periodiccnt--) |
1726 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1727 | |
|
|
1728 | { |
|
|
1729 | int active = ((W)w)->active; |
|
|
1730 | |
|
|
1731 | if (expect_true (--active < --periodiccnt)) |
875 | { |
1732 | { |
876 | periodics [w->active - 1] = periodics [periodiccnt]; |
1733 | periodics [active] = periodics [periodiccnt]; |
877 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1734 | adjustheap ((WT *)periodics, periodiccnt, active); |
878 | } |
1735 | } |
|
|
1736 | } |
879 | |
1737 | |
880 | ev_stop ((W)w); |
1738 | ev_stop (EV_A_ (W)w); |
881 | } |
1739 | } |
882 | |
1740 | |
883 | void |
1741 | void noinline |
|
|
1742 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1743 | { |
|
|
1744 | /* TODO: use adjustheap and recalculation */ |
|
|
1745 | ev_periodic_stop (EV_A_ w); |
|
|
1746 | ev_periodic_start (EV_A_ w); |
|
|
1747 | } |
|
|
1748 | #endif |
|
|
1749 | |
|
|
1750 | #ifndef SA_RESTART |
|
|
1751 | # define SA_RESTART 0 |
|
|
1752 | #endif |
|
|
1753 | |
|
|
1754 | void noinline |
884 | ev_signal_start (struct ev_signal *w) |
1755 | ev_signal_start (EV_P_ ev_signal *w) |
885 | { |
1756 | { |
|
|
1757 | #if EV_MULTIPLICITY |
|
|
1758 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1759 | #endif |
886 | if (ev_is_active (w)) |
1760 | if (expect_false (ev_is_active (w))) |
887 | return; |
1761 | return; |
888 | |
1762 | |
889 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1763 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
890 | |
1764 | |
891 | ev_start ((W)w, 1); |
1765 | ev_start (EV_A_ (W)w, 1); |
892 | array_needsize (signals, signalmax, w->signum, signals_init); |
1766 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
893 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1767 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
894 | |
1768 | |
895 | if (!w->next) |
1769 | if (!((WL)w)->next) |
896 | { |
1770 | { |
|
|
1771 | #if _WIN32 |
|
|
1772 | signal (w->signum, sighandler); |
|
|
1773 | #else |
897 | struct sigaction sa; |
1774 | struct sigaction sa; |
898 | sa.sa_handler = sighandler; |
1775 | sa.sa_handler = sighandler; |
899 | sigfillset (&sa.sa_mask); |
1776 | sigfillset (&sa.sa_mask); |
900 | sa.sa_flags = 0; |
1777 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
901 | sigaction (w->signum, &sa, 0); |
1778 | sigaction (w->signum, &sa, 0); |
|
|
1779 | #endif |
902 | } |
1780 | } |
903 | } |
1781 | } |
904 | |
1782 | |
905 | void |
1783 | void noinline |
906 | ev_signal_stop (struct ev_signal *w) |
1784 | ev_signal_stop (EV_P_ ev_signal *w) |
907 | { |
1785 | { |
908 | ev_clear_pending ((W)w); |
1786 | clear_pending (EV_A_ (W)w); |
909 | if (!ev_is_active (w)) |
1787 | if (expect_false (!ev_is_active (w))) |
910 | return; |
1788 | return; |
911 | |
1789 | |
912 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1790 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
913 | ev_stop ((W)w); |
1791 | ev_stop (EV_A_ (W)w); |
914 | |
1792 | |
915 | if (!signals [w->signum - 1].head) |
1793 | if (!signals [w->signum - 1].head) |
916 | signal (w->signum, SIG_DFL); |
1794 | signal (w->signum, SIG_DFL); |
917 | } |
1795 | } |
918 | |
1796 | |
919 | void |
1797 | void |
920 | ev_idle_start (struct ev_idle *w) |
1798 | ev_child_start (EV_P_ ev_child *w) |
921 | { |
1799 | { |
|
|
1800 | #if EV_MULTIPLICITY |
|
|
1801 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1802 | #endif |
922 | if (ev_is_active (w)) |
1803 | if (expect_false (ev_is_active (w))) |
923 | return; |
1804 | return; |
924 | |
1805 | |
925 | ev_start ((W)w, ++idlecnt); |
1806 | ev_start (EV_A_ (W)w, 1); |
926 | array_needsize (idles, idlemax, idlecnt, ); |
1807 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
927 | idles [idlecnt - 1] = w; |
|
|
928 | } |
1808 | } |
929 | |
1809 | |
930 | void |
1810 | void |
931 | ev_idle_stop (struct ev_idle *w) |
1811 | ev_child_stop (EV_P_ ev_child *w) |
932 | { |
1812 | { |
933 | ev_clear_pending ((W)w); |
1813 | clear_pending (EV_A_ (W)w); |
934 | if (ev_is_active (w)) |
1814 | if (expect_false (!ev_is_active (w))) |
935 | return; |
1815 | return; |
936 | |
1816 | |
937 | idles [w->active - 1] = idles [--idlecnt]; |
1817 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
938 | ev_stop ((W)w); |
1818 | ev_stop (EV_A_ (W)w); |
939 | } |
1819 | } |
940 | |
1820 | |
|
|
1821 | #if EV_STAT_ENABLE |
|
|
1822 | |
|
|
1823 | # ifdef _WIN32 |
|
|
1824 | # undef lstat |
|
|
1825 | # define lstat(a,b) _stati64 (a,b) |
|
|
1826 | # endif |
|
|
1827 | |
|
|
1828 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1829 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1830 | |
|
|
1831 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1832 | |
|
|
1833 | #if EV_USE_INOTIFY |
|
|
1834 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1835 | |
|
|
1836 | static void noinline |
|
|
1837 | infy_add (EV_P_ ev_stat *w) |
|
|
1838 | { |
|
|
1839 | 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); |
|
|
1840 | |
|
|
1841 | if (w->wd < 0) |
|
|
1842 | { |
|
|
1843 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1844 | |
|
|
1845 | /* monitor some parent directory for speedup hints */ |
|
|
1846 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1847 | { |
|
|
1848 | char path [4096]; |
|
|
1849 | strcpy (path, w->path); |
|
|
1850 | |
|
|
1851 | do |
|
|
1852 | { |
|
|
1853 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1854 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1855 | |
|
|
1856 | char *pend = strrchr (path, '/'); |
|
|
1857 | |
|
|
1858 | if (!pend) |
|
|
1859 | break; /* whoops, no '/', complain to your admin */ |
|
|
1860 | |
|
|
1861 | *pend = 0; |
|
|
1862 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1863 | } |
|
|
1864 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1865 | } |
|
|
1866 | } |
|
|
1867 | else |
|
|
1868 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1869 | |
|
|
1870 | if (w->wd >= 0) |
|
|
1871 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1872 | } |
|
|
1873 | |
|
|
1874 | static void noinline |
|
|
1875 | infy_del (EV_P_ ev_stat *w) |
|
|
1876 | { |
|
|
1877 | int slot; |
|
|
1878 | int wd = w->wd; |
|
|
1879 | |
|
|
1880 | if (wd < 0) |
|
|
1881 | return; |
|
|
1882 | |
|
|
1883 | w->wd = -2; |
|
|
1884 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1885 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1886 | |
|
|
1887 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1888 | inotify_rm_watch (fs_fd, wd); |
|
|
1889 | } |
|
|
1890 | |
|
|
1891 | static void noinline |
|
|
1892 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1893 | { |
|
|
1894 | if (slot < 0) |
|
|
1895 | /* overflow, need to check for all hahs slots */ |
|
|
1896 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1897 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1898 | else |
|
|
1899 | { |
|
|
1900 | WL w_; |
|
|
1901 | |
|
|
1902 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1903 | { |
|
|
1904 | ev_stat *w = (ev_stat *)w_; |
|
|
1905 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1906 | |
|
|
1907 | if (w->wd == wd || wd == -1) |
|
|
1908 | { |
|
|
1909 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1910 | { |
|
|
1911 | w->wd = -1; |
|
|
1912 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1916 | } |
|
|
1917 | } |
|
|
1918 | } |
|
|
1919 | } |
|
|
1920 | |
|
|
1921 | static void |
|
|
1922 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1923 | { |
|
|
1924 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1925 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1926 | int ofs; |
|
|
1927 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1928 | |
|
|
1929 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1930 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1931 | } |
|
|
1932 | |
|
|
1933 | void inline_size |
|
|
1934 | infy_init (EV_P) |
|
|
1935 | { |
|
|
1936 | if (fs_fd != -2) |
|
|
1937 | return; |
|
|
1938 | |
|
|
1939 | fs_fd = inotify_init (); |
|
|
1940 | |
|
|
1941 | if (fs_fd >= 0) |
|
|
1942 | { |
|
|
1943 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1944 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1945 | ev_io_start (EV_A_ &fs_w); |
|
|
1946 | } |
|
|
1947 | } |
|
|
1948 | |
|
|
1949 | void inline_size |
|
|
1950 | infy_fork (EV_P) |
|
|
1951 | { |
|
|
1952 | int slot; |
|
|
1953 | |
|
|
1954 | if (fs_fd < 0) |
|
|
1955 | return; |
|
|
1956 | |
|
|
1957 | close (fs_fd); |
|
|
1958 | fs_fd = inotify_init (); |
|
|
1959 | |
|
|
1960 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1961 | { |
|
|
1962 | WL w_ = fs_hash [slot].head; |
|
|
1963 | fs_hash [slot].head = 0; |
|
|
1964 | |
|
|
1965 | while (w_) |
|
|
1966 | { |
|
|
1967 | ev_stat *w = (ev_stat *)w_; |
|
|
1968 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1969 | |
|
|
1970 | w->wd = -1; |
|
|
1971 | |
|
|
1972 | if (fs_fd >= 0) |
|
|
1973 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1974 | else |
|
|
1975 | ev_timer_start (EV_A_ &w->timer); |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | } |
|
|
1979 | } |
|
|
1980 | |
|
|
1981 | #endif |
|
|
1982 | |
941 | void |
1983 | void |
|
|
1984 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1985 | { |
|
|
1986 | if (lstat (w->path, &w->attr) < 0) |
|
|
1987 | w->attr.st_nlink = 0; |
|
|
1988 | else if (!w->attr.st_nlink) |
|
|
1989 | w->attr.st_nlink = 1; |
|
|
1990 | } |
|
|
1991 | |
|
|
1992 | static void noinline |
|
|
1993 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1994 | { |
|
|
1995 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1996 | |
|
|
1997 | /* we copy this here each the time so that */ |
|
|
1998 | /* prev has the old value when the callback gets invoked */ |
|
|
1999 | w->prev = w->attr; |
|
|
2000 | ev_stat_stat (EV_A_ w); |
|
|
2001 | |
|
|
2002 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2003 | if ( |
|
|
2004 | w->prev.st_dev != w->attr.st_dev |
|
|
2005 | || w->prev.st_ino != w->attr.st_ino |
|
|
2006 | || w->prev.st_mode != w->attr.st_mode |
|
|
2007 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2008 | || w->prev.st_uid != w->attr.st_uid |
|
|
2009 | || w->prev.st_gid != w->attr.st_gid |
|
|
2010 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2011 | || w->prev.st_size != w->attr.st_size |
|
|
2012 | || w->prev.st_atime != w->attr.st_atime |
|
|
2013 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2014 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2015 | ) { |
|
|
2016 | #if EV_USE_INOTIFY |
|
|
2017 | infy_del (EV_A_ w); |
|
|
2018 | infy_add (EV_A_ w); |
|
|
2019 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2020 | #endif |
|
|
2021 | |
|
|
2022 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2023 | } |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | void |
|
|
2027 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2028 | { |
|
|
2029 | if (expect_false (ev_is_active (w))) |
|
|
2030 | return; |
|
|
2031 | |
|
|
2032 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2033 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2034 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2035 | |
|
|
2036 | ev_stat_stat (EV_A_ w); |
|
|
2037 | |
|
|
2038 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2039 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2040 | |
|
|
2041 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2042 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2043 | |
|
|
2044 | #if EV_USE_INOTIFY |
|
|
2045 | infy_init (EV_A); |
|
|
2046 | |
|
|
2047 | if (fs_fd >= 0) |
|
|
2048 | infy_add (EV_A_ w); |
|
|
2049 | else |
|
|
2050 | #endif |
|
|
2051 | ev_timer_start (EV_A_ &w->timer); |
|
|
2052 | |
|
|
2053 | ev_start (EV_A_ (W)w, 1); |
|
|
2054 | } |
|
|
2055 | |
|
|
2056 | void |
|
|
2057 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2058 | { |
|
|
2059 | clear_pending (EV_A_ (W)w); |
|
|
2060 | if (expect_false (!ev_is_active (w))) |
|
|
2061 | return; |
|
|
2062 | |
|
|
2063 | #if EV_USE_INOTIFY |
|
|
2064 | infy_del (EV_A_ w); |
|
|
2065 | #endif |
|
|
2066 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2067 | |
|
|
2068 | ev_stop (EV_A_ (W)w); |
|
|
2069 | } |
|
|
2070 | #endif |
|
|
2071 | |
|
|
2072 | #if EV_IDLE_ENABLE |
|
|
2073 | void |
|
|
2074 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2075 | { |
|
|
2076 | if (expect_false (ev_is_active (w))) |
|
|
2077 | return; |
|
|
2078 | |
|
|
2079 | pri_adjust (EV_A_ (W)w); |
|
|
2080 | |
|
|
2081 | { |
|
|
2082 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2083 | |
|
|
2084 | ++idleall; |
|
|
2085 | ev_start (EV_A_ (W)w, active); |
|
|
2086 | |
|
|
2087 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2088 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2089 | } |
|
|
2090 | } |
|
|
2091 | |
|
|
2092 | void |
|
|
2093 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2094 | { |
|
|
2095 | clear_pending (EV_A_ (W)w); |
|
|
2096 | if (expect_false (!ev_is_active (w))) |
|
|
2097 | return; |
|
|
2098 | |
|
|
2099 | { |
|
|
2100 | int active = ((W)w)->active; |
|
|
2101 | |
|
|
2102 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2103 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2104 | |
|
|
2105 | ev_stop (EV_A_ (W)w); |
|
|
2106 | --idleall; |
|
|
2107 | } |
|
|
2108 | } |
|
|
2109 | #endif |
|
|
2110 | |
|
|
2111 | void |
942 | ev_prepare_start (struct ev_prepare *w) |
2112 | ev_prepare_start (EV_P_ ev_prepare *w) |
943 | { |
2113 | { |
944 | if (ev_is_active (w)) |
2114 | if (expect_false (ev_is_active (w))) |
945 | return; |
2115 | return; |
946 | |
2116 | |
947 | ev_start ((W)w, ++preparecnt); |
2117 | ev_start (EV_A_ (W)w, ++preparecnt); |
948 | array_needsize (prepares, preparemax, preparecnt, ); |
2118 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
949 | prepares [preparecnt - 1] = w; |
2119 | prepares [preparecnt - 1] = w; |
950 | } |
2120 | } |
951 | |
2121 | |
952 | void |
2122 | void |
953 | ev_prepare_stop (struct ev_prepare *w) |
2123 | ev_prepare_stop (EV_P_ ev_prepare *w) |
954 | { |
2124 | { |
955 | ev_clear_pending ((W)w); |
2125 | clear_pending (EV_A_ (W)w); |
956 | if (ev_is_active (w)) |
2126 | if (expect_false (!ev_is_active (w))) |
957 | return; |
2127 | return; |
958 | |
2128 | |
|
|
2129 | { |
|
|
2130 | int active = ((W)w)->active; |
959 | prepares [w->active - 1] = prepares [--preparecnt]; |
2131 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2132 | ((W)prepares [active - 1])->active = active; |
|
|
2133 | } |
|
|
2134 | |
960 | ev_stop ((W)w); |
2135 | ev_stop (EV_A_ (W)w); |
961 | } |
2136 | } |
962 | |
2137 | |
963 | void |
2138 | void |
964 | ev_check_start (struct ev_check *w) |
2139 | ev_check_start (EV_P_ ev_check *w) |
965 | { |
2140 | { |
966 | if (ev_is_active (w)) |
2141 | if (expect_false (ev_is_active (w))) |
967 | return; |
2142 | return; |
968 | |
2143 | |
969 | ev_start ((W)w, ++checkcnt); |
2144 | ev_start (EV_A_ (W)w, ++checkcnt); |
970 | array_needsize (checks, checkmax, checkcnt, ); |
2145 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
971 | checks [checkcnt - 1] = w; |
2146 | checks [checkcnt - 1] = w; |
972 | } |
2147 | } |
973 | |
2148 | |
974 | void |
2149 | void |
975 | ev_check_stop (struct ev_check *w) |
2150 | ev_check_stop (EV_P_ ev_check *w) |
976 | { |
2151 | { |
977 | ev_clear_pending ((W)w); |
2152 | clear_pending (EV_A_ (W)w); |
978 | if (ev_is_active (w)) |
2153 | if (expect_false (!ev_is_active (w))) |
979 | return; |
2154 | return; |
980 | |
2155 | |
|
|
2156 | { |
|
|
2157 | int active = ((W)w)->active; |
981 | checks [w->active - 1] = checks [--checkcnt]; |
2158 | checks [active - 1] = checks [--checkcnt]; |
|
|
2159 | ((W)checks [active - 1])->active = active; |
|
|
2160 | } |
|
|
2161 | |
982 | ev_stop ((W)w); |
2162 | ev_stop (EV_A_ (W)w); |
983 | } |
2163 | } |
984 | |
2164 | |
985 | void |
2165 | #if EV_EMBED_ENABLE |
986 | ev_child_start (struct ev_child *w) |
2166 | void noinline |
|
|
2167 | ev_embed_sweep (EV_P_ ev_embed *w) |
987 | { |
2168 | { |
|
|
2169 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | static void |
|
|
2173 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2174 | { |
|
|
2175 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2176 | |
988 | if (ev_is_active (w)) |
2177 | if (ev_cb (w)) |
989 | return; |
2178 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2179 | else |
|
|
2180 | ev_embed_sweep (loop, w); |
|
|
2181 | } |
990 | |
2182 | |
|
|
2183 | void |
|
|
2184 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2185 | { |
|
|
2186 | if (expect_false (ev_is_active (w))) |
|
|
2187 | return; |
|
|
2188 | |
|
|
2189 | { |
|
|
2190 | struct ev_loop *loop = w->loop; |
|
|
2191 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2192 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2196 | ev_io_start (EV_A_ &w->io); |
|
|
2197 | |
991 | ev_start ((W)w, 1); |
2198 | ev_start (EV_A_ (W)w, 1); |
992 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
993 | } |
2199 | } |
994 | |
2200 | |
995 | void |
2201 | void |
996 | ev_child_stop (struct ev_child *w) |
2202 | ev_embed_stop (EV_P_ ev_embed *w) |
997 | { |
2203 | { |
998 | ev_clear_pending ((W)w); |
2204 | clear_pending (EV_A_ (W)w); |
999 | if (ev_is_active (w)) |
2205 | if (expect_false (!ev_is_active (w))) |
1000 | return; |
2206 | return; |
1001 | |
2207 | |
1002 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2208 | ev_io_stop (EV_A_ &w->io); |
|
|
2209 | |
1003 | ev_stop ((W)w); |
2210 | ev_stop (EV_A_ (W)w); |
1004 | } |
2211 | } |
|
|
2212 | #endif |
|
|
2213 | |
|
|
2214 | #if EV_FORK_ENABLE |
|
|
2215 | void |
|
|
2216 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2217 | { |
|
|
2218 | if (expect_false (ev_is_active (w))) |
|
|
2219 | return; |
|
|
2220 | |
|
|
2221 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2222 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2223 | forks [forkcnt - 1] = w; |
|
|
2224 | } |
|
|
2225 | |
|
|
2226 | void |
|
|
2227 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2228 | { |
|
|
2229 | clear_pending (EV_A_ (W)w); |
|
|
2230 | if (expect_false (!ev_is_active (w))) |
|
|
2231 | return; |
|
|
2232 | |
|
|
2233 | { |
|
|
2234 | int active = ((W)w)->active; |
|
|
2235 | forks [active - 1] = forks [--forkcnt]; |
|
|
2236 | ((W)forks [active - 1])->active = active; |
|
|
2237 | } |
|
|
2238 | |
|
|
2239 | ev_stop (EV_A_ (W)w); |
|
|
2240 | } |
|
|
2241 | #endif |
1005 | |
2242 | |
1006 | /*****************************************************************************/ |
2243 | /*****************************************************************************/ |
1007 | |
2244 | |
1008 | struct ev_once |
2245 | struct ev_once |
1009 | { |
2246 | { |
1010 | struct ev_io io; |
2247 | ev_io io; |
1011 | struct ev_timer to; |
2248 | ev_timer to; |
1012 | void (*cb)(int revents, void *arg); |
2249 | void (*cb)(int revents, void *arg); |
1013 | void *arg; |
2250 | void *arg; |
1014 | }; |
2251 | }; |
1015 | |
2252 | |
1016 | static void |
2253 | static void |
1017 | once_cb (struct ev_once *once, int revents) |
2254 | once_cb (EV_P_ struct ev_once *once, int revents) |
1018 | { |
2255 | { |
1019 | void (*cb)(int revents, void *arg) = once->cb; |
2256 | void (*cb)(int revents, void *arg) = once->cb; |
1020 | void *arg = once->arg; |
2257 | void *arg = once->arg; |
1021 | |
2258 | |
1022 | ev_io_stop (&once->io); |
2259 | ev_io_stop (EV_A_ &once->io); |
1023 | ev_timer_stop (&once->to); |
2260 | ev_timer_stop (EV_A_ &once->to); |
1024 | free (once); |
2261 | ev_free (once); |
1025 | |
2262 | |
1026 | cb (revents, arg); |
2263 | cb (revents, arg); |
1027 | } |
2264 | } |
1028 | |
2265 | |
1029 | static void |
2266 | static void |
1030 | once_cb_io (struct ev_io *w, int revents) |
2267 | once_cb_io (EV_P_ ev_io *w, int revents) |
1031 | { |
2268 | { |
1032 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2269 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1033 | } |
2270 | } |
1034 | |
2271 | |
1035 | static void |
2272 | static void |
1036 | once_cb_to (struct ev_timer *w, int revents) |
2273 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1037 | { |
2274 | { |
1038 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2275 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1039 | } |
2276 | } |
1040 | |
2277 | |
1041 | void |
2278 | void |
1042 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2279 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1043 | { |
2280 | { |
1044 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2281 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1045 | |
2282 | |
1046 | if (!once) |
2283 | if (expect_false (!once)) |
|
|
2284 | { |
1047 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2285 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1048 | else |
2286 | return; |
1049 | { |
2287 | } |
|
|
2288 | |
1050 | once->cb = cb; |
2289 | once->cb = cb; |
1051 | once->arg = arg; |
2290 | once->arg = arg; |
1052 | |
2291 | |
1053 | ev_watcher_init (&once->io, once_cb_io); |
2292 | ev_init (&once->io, once_cb_io); |
1054 | if (fd >= 0) |
2293 | if (fd >= 0) |
1055 | { |
2294 | { |
1056 | ev_io_set (&once->io, fd, events); |
2295 | ev_io_set (&once->io, fd, events); |
1057 | ev_io_start (&once->io); |
2296 | ev_io_start (EV_A_ &once->io); |
1058 | } |
2297 | } |
1059 | |
2298 | |
1060 | ev_watcher_init (&once->to, once_cb_to); |
2299 | ev_init (&once->to, once_cb_to); |
1061 | if (timeout >= 0.) |
2300 | if (timeout >= 0.) |
1062 | { |
2301 | { |
1063 | ev_timer_set (&once->to, timeout, 0.); |
2302 | ev_timer_set (&once->to, timeout, 0.); |
1064 | ev_timer_start (&once->to); |
2303 | ev_timer_start (EV_A_ &once->to); |
1065 | } |
|
|
1066 | } |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | /*****************************************************************************/ |
|
|
1070 | |
|
|
1071 | #if 0 |
|
|
1072 | |
|
|
1073 | struct ev_io wio; |
|
|
1074 | |
|
|
1075 | static void |
|
|
1076 | sin_cb (struct ev_io *w, int revents) |
|
|
1077 | { |
|
|
1078 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | static void |
|
|
1082 | ocb (struct ev_timer *w, int revents) |
|
|
1083 | { |
|
|
1084 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1085 | ev_timer_stop (w); |
|
|
1086 | ev_timer_start (w); |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | static void |
|
|
1090 | scb (struct ev_signal *w, int revents) |
|
|
1091 | { |
|
|
1092 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1093 | ev_io_stop (&wio); |
|
|
1094 | ev_io_start (&wio); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | static void |
|
|
1098 | gcb (struct ev_signal *w, int revents) |
|
|
1099 | { |
|
|
1100 | fprintf (stderr, "generic %x\n", revents); |
|
|
1101 | |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | int main (void) |
|
|
1105 | { |
|
|
1106 | ev_init (0); |
|
|
1107 | |
|
|
1108 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1109 | ev_io_start (&wio); |
|
|
1110 | |
|
|
1111 | struct ev_timer t[10000]; |
|
|
1112 | |
|
|
1113 | #if 0 |
|
|
1114 | int i; |
|
|
1115 | for (i = 0; i < 10000; ++i) |
|
|
1116 | { |
2304 | } |
1117 | struct ev_timer *w = t + i; |
|
|
1118 | ev_watcher_init (w, ocb, i); |
|
|
1119 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1120 | ev_timer_start (w); |
|
|
1121 | if (drand48 () < 0.5) |
|
|
1122 | ev_timer_stop (w); |
|
|
1123 | } |
|
|
1124 | #endif |
|
|
1125 | |
|
|
1126 | struct ev_timer t1; |
|
|
1127 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1128 | ev_timer_start (&t1); |
|
|
1129 | |
|
|
1130 | struct ev_signal sig; |
|
|
1131 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1132 | ev_signal_start (&sig); |
|
|
1133 | |
|
|
1134 | struct ev_check cw; |
|
|
1135 | ev_check_init (&cw, gcb); |
|
|
1136 | ev_check_start (&cw); |
|
|
1137 | |
|
|
1138 | struct ev_idle iw; |
|
|
1139 | ev_idle_init (&iw, gcb); |
|
|
1140 | ev_idle_start (&iw); |
|
|
1141 | |
|
|
1142 | ev_loop (0); |
|
|
1143 | |
|
|
1144 | return 0; |
|
|
1145 | } |
2305 | } |
1146 | |
2306 | |
|
|
2307 | #ifdef __cplusplus |
|
|
2308 | } |
1147 | #endif |
2309 | #endif |
1148 | |
2310 | |
1149 | |
|
|
1150 | |
|
|
1151 | |
|
|