… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
|
|
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
32 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
|
|
42 | |
|
|
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
|
|
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
|
|
48 | # define EV_USE_REALTIME 1 |
|
|
49 | # endif |
|
|
50 | # else |
|
|
51 | # ifndef EV_USE_MONOTONIC |
|
|
52 | # define EV_USE_MONOTONIC 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_REALTIME |
|
|
55 | # define EV_USE_REALTIME 0 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | |
|
|
59 | # ifndef EV_USE_SELECT |
|
|
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
|
|
65 | # endif |
|
|
66 | |
|
|
67 | # ifndef EV_USE_POLL |
|
|
68 | # if HAVE_POLL && HAVE_POLL_H |
|
|
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
|
|
73 | # endif |
|
|
74 | |
|
|
75 | # ifndef EV_USE_EPOLL |
|
|
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
|
|
81 | # endif |
|
|
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
|
|
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
85 | # define EV_USE_KQUEUE 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_KQUEUE 0 |
|
|
88 | # endif |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # ifndef EV_USE_PORT |
|
|
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
93 | # define EV_USE_PORT 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_PORT 0 |
|
|
96 | # endif |
|
|
97 | # endif |
|
|
98 | |
|
|
99 | # ifndef EV_USE_INOTIFY |
|
|
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
101 | # define EV_USE_INOTIFY 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_INOTIFY 0 |
|
|
104 | # endif |
|
|
105 | # endif |
|
|
106 | |
33 | #endif |
107 | #endif |
34 | |
108 | |
35 | #include <math.h> |
109 | #include <math.h> |
36 | #include <stdlib.h> |
110 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
111 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
112 | #include <stddef.h> |
41 | |
113 | |
42 | #include <stdio.h> |
114 | #include <stdio.h> |
43 | |
115 | |
44 | #include <assert.h> |
116 | #include <assert.h> |
45 | #include <errno.h> |
117 | #include <errno.h> |
46 | #include <sys/types.h> |
118 | #include <sys/types.h> |
|
|
119 | #include <time.h> |
|
|
120 | |
|
|
121 | #include <signal.h> |
|
|
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
|
|
128 | |
47 | #ifndef WIN32 |
129 | #ifndef _WIN32 |
|
|
130 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
|
|
132 | # include <unistd.h> |
|
|
133 | #else |
|
|
134 | # define WIN32_LEAN_AND_MEAN |
|
|
135 | # include <windows.h> |
|
|
136 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
137 | # define EV_SELECT_IS_WINSOCKET 1 |
49 | #endif |
138 | # endif |
50 | #include <sys/time.h> |
139 | #endif |
51 | #include <time.h> |
|
|
52 | |
140 | |
53 | /**/ |
141 | /**/ |
54 | |
142 | |
55 | #ifndef EV_USE_MONOTONIC |
143 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
144 | # define EV_USE_MONOTONIC 0 |
|
|
145 | #endif |
|
|
146 | |
|
|
147 | #ifndef EV_USE_REALTIME |
|
|
148 | # define EV_USE_REALTIME 0 |
57 | #endif |
149 | #endif |
58 | |
150 | |
59 | #ifndef EV_USE_SELECT |
151 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
152 | # define EV_USE_SELECT 1 |
61 | #endif |
153 | #endif |
62 | |
154 | |
63 | #ifndef EV_USE_POLL |
155 | #ifndef EV_USE_POLL |
64 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
156 | # ifdef _WIN32 |
|
|
157 | # define EV_USE_POLL 0 |
|
|
158 | # else |
|
|
159 | # define EV_USE_POLL 1 |
|
|
160 | # endif |
65 | #endif |
161 | #endif |
66 | |
162 | |
67 | #ifndef EV_USE_EPOLL |
163 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
164 | # define EV_USE_EPOLL 0 |
69 | #endif |
165 | #endif |
70 | |
166 | |
71 | #ifndef EV_USE_KQUEUE |
167 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
168 | # define EV_USE_KQUEUE 0 |
73 | #endif |
169 | #endif |
74 | |
170 | |
75 | #ifndef EV_USE_REALTIME |
171 | #ifndef EV_USE_PORT |
76 | # define EV_USE_REALTIME 1 |
172 | # define EV_USE_PORT 0 |
|
|
173 | #endif |
|
|
174 | |
|
|
175 | #ifndef EV_USE_INOTIFY |
|
|
176 | # define EV_USE_INOTIFY 0 |
|
|
177 | #endif |
|
|
178 | |
|
|
179 | #ifndef EV_PID_HASHSIZE |
|
|
180 | # if EV_MINIMAL |
|
|
181 | # define EV_PID_HASHSIZE 1 |
|
|
182 | # else |
|
|
183 | # define EV_PID_HASHSIZE 16 |
|
|
184 | # endif |
|
|
185 | #endif |
|
|
186 | |
|
|
187 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
188 | # if EV_MINIMAL |
|
|
189 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
190 | # else |
|
|
191 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
192 | # endif |
77 | #endif |
193 | #endif |
78 | |
194 | |
79 | /**/ |
195 | /**/ |
80 | |
196 | |
81 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
86 | #ifndef CLOCK_REALTIME |
202 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
203 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
204 | # define EV_USE_REALTIME 0 |
89 | #endif |
205 | #endif |
90 | |
206 | |
|
|
207 | #if EV_SELECT_IS_WINSOCKET |
|
|
208 | # include <winsock.h> |
|
|
209 | #endif |
|
|
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
91 | /**/ |
219 | /**/ |
92 | |
220 | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
97 | |
|
|
98 | #include "ev.h" |
|
|
99 | |
224 | |
100 | #if __GNUC__ >= 3 |
225 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
227 | # define inline_size static inline /* inline for codesize */ |
|
|
228 | # if EV_MINIMAL |
102 | # define inline inline |
229 | # define noinline __attribute__ ((noinline)) |
|
|
230 | # define inline_speed static noinline |
|
|
231 | # else |
|
|
232 | # define noinline |
|
|
233 | # define inline_speed static inline |
|
|
234 | # endif |
103 | #else |
235 | #else |
104 | # define expect(expr,value) (expr) |
236 | # define expect(expr,value) (expr) |
|
|
237 | # define inline_speed static |
105 | # define inline static |
238 | # define inline_size static |
|
|
239 | # define noinline |
106 | #endif |
240 | #endif |
107 | |
241 | |
108 | #define expect_false(expr) expect ((expr) != 0, 0) |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
244 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
246 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
113 | |
247 | |
|
|
248 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
250 | |
114 | typedef struct ev_watcher *W; |
251 | typedef ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
252 | typedef ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
253 | typedef ev_watcher_time *WT; |
117 | |
254 | |
118 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
256 | |
|
|
257 | #ifdef _WIN32 |
|
|
258 | # include "ev_win32.c" |
|
|
259 | #endif |
|
|
260 | |
|
|
261 | /*****************************************************************************/ |
|
|
262 | |
|
|
263 | static void (*syserr_cb)(const char *msg); |
|
|
264 | |
|
|
265 | void |
|
|
266 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
267 | { |
|
|
268 | syserr_cb = cb; |
|
|
269 | } |
|
|
270 | |
|
|
271 | static void noinline |
|
|
272 | syserr (const char *msg) |
|
|
273 | { |
|
|
274 | if (!msg) |
|
|
275 | msg = "(libev) system error"; |
|
|
276 | |
|
|
277 | if (syserr_cb) |
|
|
278 | syserr_cb (msg); |
|
|
279 | else |
|
|
280 | { |
|
|
281 | perror (msg); |
|
|
282 | abort (); |
|
|
283 | } |
|
|
284 | } |
|
|
285 | |
|
|
286 | static void *(*alloc)(void *ptr, long size); |
|
|
287 | |
|
|
288 | void |
|
|
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
290 | { |
|
|
291 | alloc = cb; |
|
|
292 | } |
|
|
293 | |
|
|
294 | inline_speed void * |
|
|
295 | ev_realloc (void *ptr, long size) |
|
|
296 | { |
|
|
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
298 | |
|
|
299 | if (!ptr && size) |
|
|
300 | { |
|
|
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
302 | abort (); |
|
|
303 | } |
|
|
304 | |
|
|
305 | return ptr; |
|
|
306 | } |
|
|
307 | |
|
|
308 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
309 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
310 | |
|
|
311 | /*****************************************************************************/ |
|
|
312 | |
|
|
313 | typedef struct |
|
|
314 | { |
|
|
315 | WL head; |
|
|
316 | unsigned char events; |
|
|
317 | unsigned char reify; |
|
|
318 | #if EV_SELECT_IS_WINSOCKET |
|
|
319 | SOCKET handle; |
|
|
320 | #endif |
|
|
321 | } ANFD; |
|
|
322 | |
|
|
323 | typedef struct |
|
|
324 | { |
|
|
325 | W w; |
|
|
326 | int events; |
|
|
327 | } ANPENDING; |
|
|
328 | |
|
|
329 | #if EV_USE_INOTIFY |
|
|
330 | typedef struct |
|
|
331 | { |
|
|
332 | WL head; |
|
|
333 | } ANFS; |
|
|
334 | #endif |
|
|
335 | |
|
|
336 | #if EV_MULTIPLICITY |
|
|
337 | |
|
|
338 | struct ev_loop |
|
|
339 | { |
|
|
340 | ev_tstamp ev_rt_now; |
|
|
341 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
342 | #define VAR(name,decl) decl; |
|
|
343 | #include "ev_vars.h" |
|
|
344 | #undef VAR |
|
|
345 | }; |
|
|
346 | #include "ev_wrap.h" |
|
|
347 | |
|
|
348 | static struct ev_loop default_loop_struct; |
|
|
349 | struct ev_loop *ev_default_loop_ptr; |
|
|
350 | |
|
|
351 | #else |
|
|
352 | |
119 | ev_tstamp ev_now; |
353 | ev_tstamp ev_rt_now; |
120 | int ev_method; |
354 | #define VAR(name,decl) static decl; |
|
|
355 | #include "ev_vars.h" |
|
|
356 | #undef VAR |
121 | |
357 | |
122 | static int have_monotonic; /* runtime */ |
358 | static int ev_default_loop_ptr; |
123 | |
359 | |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
360 | #endif |
125 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
126 | static void (*method_poll)(ev_tstamp timeout); |
|
|
127 | |
361 | |
128 | /*****************************************************************************/ |
362 | /*****************************************************************************/ |
129 | |
363 | |
130 | ev_tstamp |
364 | ev_tstamp |
131 | ev_time (void) |
365 | ev_time (void) |
… | |
… | |
139 | gettimeofday (&tv, 0); |
373 | gettimeofday (&tv, 0); |
140 | return tv.tv_sec + tv.tv_usec * 1e-6; |
374 | return tv.tv_sec + tv.tv_usec * 1e-6; |
141 | #endif |
375 | #endif |
142 | } |
376 | } |
143 | |
377 | |
144 | static ev_tstamp |
378 | ev_tstamp inline_size |
145 | get_clock (void) |
379 | get_clock (void) |
146 | { |
380 | { |
147 | #if EV_USE_MONOTONIC |
381 | #if EV_USE_MONOTONIC |
148 | if (expect_true (have_monotonic)) |
382 | if (expect_true (have_monotonic)) |
149 | { |
383 | { |
… | |
… | |
154 | #endif |
388 | #endif |
155 | |
389 | |
156 | return ev_time (); |
390 | return ev_time (); |
157 | } |
391 | } |
158 | |
392 | |
159 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
393 | #if EV_MULTIPLICITY |
|
|
394 | ev_tstamp |
|
|
395 | ev_now (EV_P) |
|
|
396 | { |
|
|
397 | return ev_rt_now; |
|
|
398 | } |
|
|
399 | #endif |
160 | |
400 | |
|
|
401 | int inline_size |
|
|
402 | array_nextsize (int elem, int cur, int cnt) |
|
|
403 | { |
|
|
404 | int ncur = cur + 1; |
|
|
405 | |
|
|
406 | do |
|
|
407 | ncur <<= 1; |
|
|
408 | while (cnt > ncur); |
|
|
409 | |
|
|
410 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
411 | if (elem * ncur > 4096) |
|
|
412 | { |
|
|
413 | ncur *= elem; |
|
|
414 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
415 | ncur = ncur - sizeof (void *) * 4; |
|
|
416 | ncur /= elem; |
|
|
417 | } |
|
|
418 | |
|
|
419 | return ncur; |
|
|
420 | } |
|
|
421 | |
|
|
422 | inline_speed void * |
|
|
423 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
424 | { |
|
|
425 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
426 | return ev_realloc (base, elem * *cur); |
|
|
427 | } |
|
|
428 | |
161 | #define array_needsize(base,cur,cnt,init) \ |
429 | #define array_needsize(type,base,cur,cnt,init) \ |
162 | if (expect_false ((cnt) > cur)) \ |
430 | if (expect_false ((cnt) > (cur))) \ |
163 | { \ |
431 | { \ |
164 | int newcnt = cur; \ |
432 | int ocur_ = (cur); \ |
165 | do \ |
433 | (base) = (type *)array_realloc \ |
166 | { \ |
434 | (sizeof (type), (base), &(cur), (cnt)); \ |
167 | newcnt = array_roundsize (base, newcnt << 1); \ |
435 | init ((base) + (ocur_), (cur) - ocur_); \ |
168 | } \ |
436 | } |
169 | while ((cnt) > newcnt); \ |
437 | |
|
|
438 | #if 0 |
|
|
439 | #define array_slim(type,stem) \ |
|
|
440 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
170 | \ |
441 | { \ |
171 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
442 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
172 | init (base + cur, newcnt - cur); \ |
443 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
173 | cur = newcnt; \ |
444 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
174 | } |
445 | } |
|
|
446 | #endif |
|
|
447 | |
|
|
448 | #define array_free(stem, idx) \ |
|
|
449 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
175 | |
450 | |
176 | /*****************************************************************************/ |
451 | /*****************************************************************************/ |
177 | |
452 | |
178 | typedef struct |
453 | void noinline |
|
|
454 | ev_feed_event (EV_P_ void *w, int revents) |
179 | { |
455 | { |
180 | struct ev_io *head; |
456 | W w_ = (W)w; |
181 | unsigned char events; |
|
|
182 | unsigned char reify; |
|
|
183 | } ANFD; |
|
|
184 | |
457 | |
185 | static ANFD *anfds; |
458 | if (expect_false (w_->pending)) |
186 | static int anfdmax; |
459 | { |
|
|
460 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
461 | return; |
|
|
462 | } |
187 | |
463 | |
188 | static void |
464 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
465 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
466 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
467 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
468 | } |
|
|
469 | |
|
|
470 | void inline_size |
|
|
471 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
472 | { |
|
|
473 | int i; |
|
|
474 | |
|
|
475 | for (i = 0; i < eventcnt; ++i) |
|
|
476 | ev_feed_event (EV_A_ events [i], type); |
|
|
477 | } |
|
|
478 | |
|
|
479 | /*****************************************************************************/ |
|
|
480 | |
|
|
481 | void inline_size |
189 | anfds_init (ANFD *base, int count) |
482 | anfds_init (ANFD *base, int count) |
190 | { |
483 | { |
191 | while (count--) |
484 | while (count--) |
192 | { |
485 | { |
193 | base->head = 0; |
486 | base->head = 0; |
… | |
… | |
196 | |
489 | |
197 | ++base; |
490 | ++base; |
198 | } |
491 | } |
199 | } |
492 | } |
200 | |
493 | |
201 | typedef struct |
494 | void inline_speed |
202 | { |
|
|
203 | W w; |
|
|
204 | int events; |
|
|
205 | } ANPENDING; |
|
|
206 | |
|
|
207 | static ANPENDING *pendings [NUMPRI]; |
|
|
208 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
209 | |
|
|
210 | static void |
|
|
211 | event (W w, int events) |
|
|
212 | { |
|
|
213 | if (w->pending) |
|
|
214 | { |
|
|
215 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
216 | return; |
|
|
217 | } |
|
|
218 | |
|
|
219 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
220 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
221 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
222 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
223 | } |
|
|
224 | |
|
|
225 | static void |
|
|
226 | queue_events (W *events, int eventcnt, int type) |
|
|
227 | { |
|
|
228 | int i; |
|
|
229 | |
|
|
230 | for (i = 0; i < eventcnt; ++i) |
|
|
231 | event (events [i], type); |
|
|
232 | } |
|
|
233 | |
|
|
234 | static void |
|
|
235 | fd_event (int fd, int events) |
495 | fd_event (EV_P_ int fd, int revents) |
236 | { |
496 | { |
237 | ANFD *anfd = anfds + fd; |
497 | ANFD *anfd = anfds + fd; |
238 | struct ev_io *w; |
498 | ev_io *w; |
239 | |
499 | |
240 | for (w = anfd->head; w; w = w->next) |
500 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
241 | { |
501 | { |
242 | int ev = w->events & events; |
502 | int ev = w->events & revents; |
243 | |
503 | |
244 | if (ev) |
504 | if (ev) |
245 | event ((W)w, ev); |
505 | ev_feed_event (EV_A_ (W)w, ev); |
246 | } |
506 | } |
247 | } |
507 | } |
248 | |
508 | |
249 | /*****************************************************************************/ |
509 | void |
|
|
510 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
511 | { |
|
|
512 | fd_event (EV_A_ fd, revents); |
|
|
513 | } |
250 | |
514 | |
251 | static int *fdchanges; |
515 | void inline_size |
252 | static int fdchangemax, fdchangecnt; |
516 | fd_reify (EV_P) |
253 | |
|
|
254 | static void |
|
|
255 | fd_reify (void) |
|
|
256 | { |
517 | { |
257 | int i; |
518 | int i; |
258 | |
519 | |
259 | for (i = 0; i < fdchangecnt; ++i) |
520 | for (i = 0; i < fdchangecnt; ++i) |
260 | { |
521 | { |
261 | int fd = fdchanges [i]; |
522 | int fd = fdchanges [i]; |
262 | ANFD *anfd = anfds + fd; |
523 | ANFD *anfd = anfds + fd; |
263 | struct ev_io *w; |
524 | ev_io *w; |
264 | |
525 | |
265 | int events = 0; |
526 | int events = 0; |
266 | |
527 | |
267 | for (w = anfd->head; w; w = w->next) |
528 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
268 | events |= w->events; |
529 | events |= w->events; |
269 | |
530 | |
|
|
531 | #if EV_SELECT_IS_WINSOCKET |
|
|
532 | if (events) |
|
|
533 | { |
|
|
534 | unsigned long argp; |
|
|
535 | anfd->handle = _get_osfhandle (fd); |
|
|
536 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
537 | } |
|
|
538 | #endif |
|
|
539 | |
270 | anfd->reify = 0; |
540 | anfd->reify = 0; |
271 | |
541 | |
272 | if (anfd->events != events) |
|
|
273 | { |
|
|
274 | method_modify (fd, anfd->events, events); |
542 | backend_modify (EV_A_ fd, anfd->events, events); |
275 | anfd->events = events; |
543 | anfd->events = events; |
276 | } |
|
|
277 | } |
544 | } |
278 | |
545 | |
279 | fdchangecnt = 0; |
546 | fdchangecnt = 0; |
280 | } |
547 | } |
281 | |
548 | |
282 | static void |
549 | void inline_size |
283 | fd_change (int fd) |
550 | fd_change (EV_P_ int fd) |
284 | { |
551 | { |
285 | if (anfds [fd].reify || fdchangecnt < 0) |
552 | if (expect_false (anfds [fd].reify)) |
286 | return; |
553 | return; |
287 | |
554 | |
288 | anfds [fd].reify = 1; |
555 | anfds [fd].reify = 1; |
289 | |
556 | |
290 | ++fdchangecnt; |
557 | ++fdchangecnt; |
291 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
558 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
292 | fdchanges [fdchangecnt - 1] = fd; |
559 | fdchanges [fdchangecnt - 1] = fd; |
293 | } |
560 | } |
294 | |
561 | |
295 | static void |
562 | void inline_speed |
296 | fd_kill (int fd) |
563 | fd_kill (EV_P_ int fd) |
297 | { |
564 | { |
298 | struct ev_io *w; |
565 | ev_io *w; |
299 | |
566 | |
300 | printf ("killing fd %d\n", fd);//D |
|
|
301 | while ((w = anfds [fd].head)) |
567 | while ((w = (ev_io *)anfds [fd].head)) |
302 | { |
568 | { |
303 | ev_io_stop (w); |
569 | ev_io_stop (EV_A_ w); |
304 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
570 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
305 | } |
571 | } |
|
|
572 | } |
|
|
573 | |
|
|
574 | int inline_size |
|
|
575 | fd_valid (int fd) |
|
|
576 | { |
|
|
577 | #ifdef _WIN32 |
|
|
578 | return _get_osfhandle (fd) != -1; |
|
|
579 | #else |
|
|
580 | return fcntl (fd, F_GETFD) != -1; |
|
|
581 | #endif |
306 | } |
582 | } |
307 | |
583 | |
308 | /* called on EBADF to verify fds */ |
584 | /* called on EBADF to verify fds */ |
309 | static void |
585 | static void noinline |
310 | fd_ebadf (void) |
586 | fd_ebadf (EV_P) |
311 | { |
587 | { |
312 | int fd; |
588 | int fd; |
313 | |
589 | |
314 | for (fd = 0; fd < anfdmax; ++fd) |
590 | for (fd = 0; fd < anfdmax; ++fd) |
315 | if (anfds [fd].events) |
591 | if (anfds [fd].events) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
592 | if (!fd_valid (fd) == -1 && errno == EBADF) |
317 | fd_kill (fd); |
593 | fd_kill (EV_A_ fd); |
318 | } |
594 | } |
319 | |
595 | |
320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
596 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
321 | static void |
597 | static void noinline |
322 | fd_enomem (void) |
598 | fd_enomem (EV_P) |
323 | { |
599 | { |
324 | int fd = anfdmax; |
600 | int fd; |
325 | |
601 | |
326 | while (fd--) |
602 | for (fd = anfdmax; fd--; ) |
327 | if (anfds [fd].events) |
603 | if (anfds [fd].events) |
328 | { |
604 | { |
329 | close (fd); |
|
|
330 | fd_kill (fd); |
605 | fd_kill (EV_A_ fd); |
331 | return; |
606 | return; |
332 | } |
607 | } |
333 | } |
608 | } |
334 | |
609 | |
|
|
610 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
611 | static void noinline |
|
|
612 | fd_rearm_all (EV_P) |
|
|
613 | { |
|
|
614 | int fd; |
|
|
615 | |
|
|
616 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
617 | if (anfds [fd].events) |
|
|
618 | { |
|
|
619 | anfds [fd].events = 0; |
|
|
620 | fd_change (EV_A_ fd); |
|
|
621 | } |
|
|
622 | } |
|
|
623 | |
335 | /*****************************************************************************/ |
624 | /*****************************************************************************/ |
336 | |
625 | |
337 | static struct ev_timer **timers; |
626 | void inline_speed |
338 | static int timermax, timercnt; |
|
|
339 | |
|
|
340 | static struct ev_periodic **periodics; |
|
|
341 | static int periodicmax, periodiccnt; |
|
|
342 | |
|
|
343 | static void |
|
|
344 | upheap (WT *timers, int k) |
627 | upheap (WT *heap, int k) |
345 | { |
628 | { |
346 | WT w = timers [k]; |
629 | WT w = heap [k]; |
347 | |
630 | |
348 | while (k && timers [k >> 1]->at > w->at) |
631 | while (k && heap [k >> 1]->at > w->at) |
349 | { |
632 | { |
350 | timers [k] = timers [k >> 1]; |
633 | heap [k] = heap [k >> 1]; |
351 | timers [k]->active = k + 1; |
634 | ((W)heap [k])->active = k + 1; |
352 | k >>= 1; |
635 | k >>= 1; |
353 | } |
636 | } |
354 | |
637 | |
355 | timers [k] = w; |
638 | heap [k] = w; |
356 | timers [k]->active = k + 1; |
639 | ((W)heap [k])->active = k + 1; |
357 | |
640 | |
358 | } |
641 | } |
359 | |
642 | |
360 | static void |
643 | void inline_speed |
361 | downheap (WT *timers, int N, int k) |
644 | downheap (WT *heap, int N, int k) |
362 | { |
645 | { |
363 | WT w = timers [k]; |
646 | WT w = heap [k]; |
364 | |
647 | |
365 | while (k < (N >> 1)) |
648 | while (k < (N >> 1)) |
366 | { |
649 | { |
367 | int j = k << 1; |
650 | int j = k << 1; |
368 | |
651 | |
369 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
652 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
370 | ++j; |
653 | ++j; |
371 | |
654 | |
372 | if (w->at <= timers [j]->at) |
655 | if (w->at <= heap [j]->at) |
373 | break; |
656 | break; |
374 | |
657 | |
375 | timers [k] = timers [j]; |
658 | heap [k] = heap [j]; |
376 | timers [k]->active = k + 1; |
659 | ((W)heap [k])->active = k + 1; |
377 | k = j; |
660 | k = j; |
378 | } |
661 | } |
379 | |
662 | |
380 | timers [k] = w; |
663 | heap [k] = w; |
381 | timers [k]->active = k + 1; |
664 | ((W)heap [k])->active = k + 1; |
|
|
665 | } |
|
|
666 | |
|
|
667 | void inline_size |
|
|
668 | adjustheap (WT *heap, int N, int k) |
|
|
669 | { |
|
|
670 | upheap (heap, k); |
|
|
671 | downheap (heap, N, k); |
382 | } |
672 | } |
383 | |
673 | |
384 | /*****************************************************************************/ |
674 | /*****************************************************************************/ |
385 | |
675 | |
386 | typedef struct |
676 | typedef struct |
387 | { |
677 | { |
388 | struct ev_signal *head; |
678 | WL head; |
389 | sig_atomic_t volatile gotsig; |
679 | sig_atomic_t volatile gotsig; |
390 | } ANSIG; |
680 | } ANSIG; |
391 | |
681 | |
392 | static ANSIG *signals; |
682 | static ANSIG *signals; |
393 | static int signalmax; |
683 | static int signalmax; |
394 | |
684 | |
395 | static int sigpipe [2]; |
685 | static int sigpipe [2]; |
396 | static sig_atomic_t volatile gotsig; |
686 | static sig_atomic_t volatile gotsig; |
397 | static struct ev_io sigev; |
687 | static ev_io sigev; |
398 | |
688 | |
399 | static void |
689 | void inline_size |
400 | signals_init (ANSIG *base, int count) |
690 | signals_init (ANSIG *base, int count) |
401 | { |
691 | { |
402 | while (count--) |
692 | while (count--) |
403 | { |
693 | { |
404 | base->head = 0; |
694 | base->head = 0; |
… | |
… | |
409 | } |
699 | } |
410 | |
700 | |
411 | static void |
701 | static void |
412 | sighandler (int signum) |
702 | sighandler (int signum) |
413 | { |
703 | { |
|
|
704 | #if _WIN32 |
|
|
705 | signal (signum, sighandler); |
|
|
706 | #endif |
|
|
707 | |
414 | signals [signum - 1].gotsig = 1; |
708 | signals [signum - 1].gotsig = 1; |
415 | |
709 | |
416 | if (!gotsig) |
710 | if (!gotsig) |
417 | { |
711 | { |
418 | int old_errno = errno; |
712 | int old_errno = errno; |
… | |
… | |
420 | write (sigpipe [1], &signum, 1); |
714 | write (sigpipe [1], &signum, 1); |
421 | errno = old_errno; |
715 | errno = old_errno; |
422 | } |
716 | } |
423 | } |
717 | } |
424 | |
718 | |
|
|
719 | void noinline |
|
|
720 | ev_feed_signal_event (EV_P_ int signum) |
|
|
721 | { |
|
|
722 | WL w; |
|
|
723 | |
|
|
724 | #if EV_MULTIPLICITY |
|
|
725 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
726 | #endif |
|
|
727 | |
|
|
728 | --signum; |
|
|
729 | |
|
|
730 | if (signum < 0 || signum >= signalmax) |
|
|
731 | return; |
|
|
732 | |
|
|
733 | signals [signum].gotsig = 0; |
|
|
734 | |
|
|
735 | for (w = signals [signum].head; w; w = w->next) |
|
|
736 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
737 | } |
|
|
738 | |
425 | static void |
739 | static void |
426 | sigcb (struct ev_io *iow, int revents) |
740 | sigcb (EV_P_ ev_io *iow, int revents) |
427 | { |
741 | { |
428 | struct ev_signal *w; |
|
|
429 | int signum; |
742 | int signum; |
430 | |
743 | |
431 | read (sigpipe [0], &revents, 1); |
744 | read (sigpipe [0], &revents, 1); |
432 | gotsig = 0; |
745 | gotsig = 0; |
433 | |
746 | |
434 | for (signum = signalmax; signum--; ) |
747 | for (signum = signalmax; signum--; ) |
435 | if (signals [signum].gotsig) |
748 | if (signals [signum].gotsig) |
|
|
749 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
750 | } |
|
|
751 | |
|
|
752 | void inline_size |
|
|
753 | fd_intern (int fd) |
|
|
754 | { |
|
|
755 | #ifdef _WIN32 |
|
|
756 | int arg = 1; |
|
|
757 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
758 | #else |
|
|
759 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
760 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
761 | #endif |
|
|
762 | } |
|
|
763 | |
|
|
764 | static void noinline |
|
|
765 | siginit (EV_P) |
|
|
766 | { |
|
|
767 | fd_intern (sigpipe [0]); |
|
|
768 | fd_intern (sigpipe [1]); |
|
|
769 | |
|
|
770 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
771 | ev_io_start (EV_A_ &sigev); |
|
|
772 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
773 | } |
|
|
774 | |
|
|
775 | /*****************************************************************************/ |
|
|
776 | |
|
|
777 | static ev_child *childs [EV_PID_HASHSIZE]; |
|
|
778 | |
|
|
779 | #ifndef _WIN32 |
|
|
780 | |
|
|
781 | static ev_signal childev; |
|
|
782 | |
|
|
783 | void inline_speed |
|
|
784 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
785 | { |
|
|
786 | ev_child *w; |
|
|
787 | |
|
|
788 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
789 | if (w->pid == pid || !w->pid) |
436 | { |
790 | { |
437 | signals [signum].gotsig = 0; |
791 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
438 | |
792 | w->rpid = pid; |
439 | for (w = signals [signum].head; w; w = w->next) |
793 | w->rstatus = status; |
440 | event ((W)w, EV_SIGNAL); |
794 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
441 | } |
795 | } |
442 | } |
796 | } |
443 | |
|
|
444 | static void |
|
|
445 | siginit (void) |
|
|
446 | { |
|
|
447 | #ifndef WIN32 |
|
|
448 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
449 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
450 | |
|
|
451 | /* rather than sort out wether we really need nb, set it */ |
|
|
452 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
453 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
454 | #endif |
|
|
455 | |
|
|
456 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
457 | ev_io_start (&sigev); |
|
|
458 | } |
|
|
459 | |
|
|
460 | /*****************************************************************************/ |
|
|
461 | |
|
|
462 | static struct ev_idle **idles; |
|
|
463 | static int idlemax, idlecnt; |
|
|
464 | |
|
|
465 | static struct ev_prepare **prepares; |
|
|
466 | static int preparemax, preparecnt; |
|
|
467 | |
|
|
468 | static struct ev_check **checks; |
|
|
469 | static int checkmax, checkcnt; |
|
|
470 | |
|
|
471 | /*****************************************************************************/ |
|
|
472 | |
|
|
473 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
474 | static struct ev_signal childev; |
|
|
475 | |
|
|
476 | #ifndef WIN32 |
|
|
477 | |
797 | |
478 | #ifndef WCONTINUED |
798 | #ifndef WCONTINUED |
479 | # define WCONTINUED 0 |
799 | # define WCONTINUED 0 |
480 | #endif |
800 | #endif |
481 | |
801 | |
482 | static void |
802 | static void |
483 | child_reap (struct ev_signal *sw, int chain, int pid, int status) |
|
|
484 | { |
|
|
485 | struct ev_child *w; |
|
|
486 | |
|
|
487 | for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next) |
|
|
488 | if (w->pid == pid || !w->pid) |
|
|
489 | { |
|
|
490 | w->priority = sw->priority; /* need to do it *now* */ |
|
|
491 | w->rpid = pid; |
|
|
492 | w->rstatus = status; |
|
|
493 | printf ("rpid %p %d %d\n", w, pid, w->pid);//D |
|
|
494 | event ((W)w, EV_CHILD); |
|
|
495 | } |
|
|
496 | } |
|
|
497 | |
|
|
498 | static void |
|
|
499 | childcb (struct ev_signal *sw, int revents) |
803 | childcb (EV_P_ ev_signal *sw, int revents) |
500 | { |
804 | { |
501 | int pid, status; |
805 | int pid, status; |
502 | |
806 | |
503 | printf ("chld %x\n", revents);//D |
807 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
504 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
808 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
505 | { |
809 | if (!WCONTINUED |
|
|
810 | || errno != EINVAL |
|
|
811 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
812 | return; |
|
|
813 | |
506 | /* make sure we are called again until all childs have been reaped */ |
814 | /* make sure we are called again until all childs have been reaped */ |
|
|
815 | /* we need to do it this way so that the callback gets called before we continue */ |
507 | event ((W)sw, EV_SIGNAL); |
816 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
508 | |
817 | |
509 | child_reap (sw, pid, pid, status); |
818 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
819 | if (EV_PID_HASHSIZE > 1) |
510 | child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
820 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
511 | } |
|
|
512 | } |
821 | } |
513 | |
822 | |
514 | #endif |
823 | #endif |
515 | |
824 | |
516 | /*****************************************************************************/ |
825 | /*****************************************************************************/ |
517 | |
826 | |
|
|
827 | #if EV_USE_PORT |
|
|
828 | # include "ev_port.c" |
|
|
829 | #endif |
518 | #if EV_USE_KQUEUE |
830 | #if EV_USE_KQUEUE |
519 | # include "ev_kqueue.c" |
831 | # include "ev_kqueue.c" |
520 | #endif |
832 | #endif |
521 | #if EV_USE_EPOLL |
833 | #if EV_USE_EPOLL |
522 | # include "ev_epoll.c" |
834 | # include "ev_epoll.c" |
… | |
… | |
538 | ev_version_minor (void) |
850 | ev_version_minor (void) |
539 | { |
851 | { |
540 | return EV_VERSION_MINOR; |
852 | return EV_VERSION_MINOR; |
541 | } |
853 | } |
542 | |
854 | |
543 | /* return true if we are running with elevated privileges and ignore env variables */ |
855 | /* return true if we are running with elevated privileges and should ignore env variables */ |
544 | static int |
856 | int inline_size |
545 | enable_secure () |
857 | enable_secure (void) |
546 | { |
858 | { |
|
|
859 | #ifdef _WIN32 |
|
|
860 | return 0; |
|
|
861 | #else |
547 | return getuid () != geteuid () |
862 | return getuid () != geteuid () |
548 | || getgid () != getegid (); |
863 | || getgid () != getegid (); |
|
|
864 | #endif |
549 | } |
865 | } |
550 | |
866 | |
551 | int ev_init (int methods) |
867 | unsigned int |
|
|
868 | ev_supported_backends (void) |
552 | { |
869 | { |
553 | if (!ev_method) |
870 | unsigned int flags = 0; |
|
|
871 | |
|
|
872 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
873 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
874 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
875 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
876 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
877 | |
|
|
878 | return flags; |
|
|
879 | } |
|
|
880 | |
|
|
881 | unsigned int |
|
|
882 | ev_recommended_backends (void) |
|
|
883 | { |
|
|
884 | unsigned int flags = ev_supported_backends (); |
|
|
885 | |
|
|
886 | #ifndef __NetBSD__ |
|
|
887 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
888 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
889 | flags &= ~EVBACKEND_KQUEUE; |
|
|
890 | #endif |
|
|
891 | #ifdef __APPLE__ |
|
|
892 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
893 | flags &= ~EVBACKEND_POLL; |
|
|
894 | #endif |
|
|
895 | |
|
|
896 | return flags; |
|
|
897 | } |
|
|
898 | |
|
|
899 | unsigned int |
|
|
900 | ev_embeddable_backends (void) |
|
|
901 | { |
|
|
902 | return EVBACKEND_EPOLL |
|
|
903 | | EVBACKEND_KQUEUE |
|
|
904 | | EVBACKEND_PORT; |
|
|
905 | } |
|
|
906 | |
|
|
907 | unsigned int |
|
|
908 | ev_backend (EV_P) |
|
|
909 | { |
|
|
910 | return backend; |
|
|
911 | } |
|
|
912 | |
|
|
913 | unsigned int |
|
|
914 | ev_loop_count (EV_P) |
|
|
915 | { |
|
|
916 | return loop_count; |
|
|
917 | } |
|
|
918 | |
|
|
919 | static void noinline |
|
|
920 | loop_init (EV_P_ unsigned int flags) |
|
|
921 | { |
|
|
922 | if (!backend) |
554 | { |
923 | { |
555 | #if EV_USE_MONOTONIC |
924 | #if EV_USE_MONOTONIC |
556 | { |
925 | { |
557 | struct timespec ts; |
926 | struct timespec ts; |
558 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
927 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
559 | have_monotonic = 1; |
928 | have_monotonic = 1; |
560 | } |
929 | } |
561 | #endif |
930 | #endif |
562 | |
931 | |
563 | ev_now = ev_time (); |
932 | ev_rt_now = ev_time (); |
564 | now = get_clock (); |
933 | mn_now = get_clock (); |
565 | now_floor = now; |
934 | now_floor = mn_now; |
566 | diff = ev_now - now; |
935 | rtmn_diff = ev_rt_now - mn_now; |
567 | |
936 | |
568 | if (pipe (sigpipe)) |
937 | /* pid check not overridable via env */ |
569 | return 0; |
938 | #ifndef _WIN32 |
|
|
939 | if (flags & EVFLAG_FORKCHECK) |
|
|
940 | curpid = getpid (); |
|
|
941 | #endif |
570 | |
942 | |
571 | if (methods == EVMETHOD_AUTO) |
943 | if (!(flags & EVFLAG_NOENV) |
572 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
944 | && !enable_secure () |
|
|
945 | && getenv ("LIBEV_FLAGS")) |
573 | methods = atoi (getenv ("LIBEV_METHODS")); |
946 | flags = atoi (getenv ("LIBEV_FLAGS")); |
574 | else |
|
|
575 | methods = EVMETHOD_ANY; |
|
|
576 | |
947 | |
577 | ev_method = 0; |
948 | if (!(flags & 0x0000ffffUL)) |
|
|
949 | flags |= ev_recommended_backends (); |
|
|
950 | |
|
|
951 | backend = 0; |
|
|
952 | backend_fd = -1; |
|
|
953 | #if EV_USE_INOTIFY |
|
|
954 | fs_fd = -2; |
|
|
955 | #endif |
|
|
956 | |
|
|
957 | #if EV_USE_PORT |
|
|
958 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
959 | #endif |
578 | #if EV_USE_KQUEUE |
960 | #if EV_USE_KQUEUE |
579 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
961 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
580 | #endif |
962 | #endif |
581 | #if EV_USE_EPOLL |
963 | #if EV_USE_EPOLL |
582 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
964 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
583 | #endif |
965 | #endif |
584 | #if EV_USE_POLL |
966 | #if EV_USE_POLL |
585 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
967 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
586 | #endif |
968 | #endif |
587 | #if EV_USE_SELECT |
969 | #if EV_USE_SELECT |
588 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
970 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
589 | #endif |
971 | #endif |
590 | |
972 | |
591 | if (ev_method) |
973 | ev_init (&sigev, sigcb); |
|
|
974 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
975 | } |
|
|
976 | } |
|
|
977 | |
|
|
978 | static void noinline |
|
|
979 | loop_destroy (EV_P) |
|
|
980 | { |
|
|
981 | int i; |
|
|
982 | |
|
|
983 | #if EV_USE_INOTIFY |
|
|
984 | if (fs_fd >= 0) |
|
|
985 | close (fs_fd); |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | if (backend_fd >= 0) |
|
|
989 | close (backend_fd); |
|
|
990 | |
|
|
991 | #if EV_USE_PORT |
|
|
992 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
993 | #endif |
|
|
994 | #if EV_USE_KQUEUE |
|
|
995 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
996 | #endif |
|
|
997 | #if EV_USE_EPOLL |
|
|
998 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
999 | #endif |
|
|
1000 | #if EV_USE_POLL |
|
|
1001 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1002 | #endif |
|
|
1003 | #if EV_USE_SELECT |
|
|
1004 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1005 | #endif |
|
|
1006 | |
|
|
1007 | for (i = NUMPRI; i--; ) |
|
|
1008 | { |
|
|
1009 | array_free (pending, [i]); |
|
|
1010 | #if EV_IDLE_ENABLE |
|
|
1011 | array_free (idle, [i]); |
|
|
1012 | #endif |
|
|
1013 | } |
|
|
1014 | |
|
|
1015 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1016 | array_free (fdchange, EMPTY); |
|
|
1017 | array_free (timer, EMPTY); |
|
|
1018 | #if EV_PERIODIC_ENABLE |
|
|
1019 | array_free (periodic, EMPTY); |
|
|
1020 | #endif |
|
|
1021 | array_free (prepare, EMPTY); |
|
|
1022 | array_free (check, EMPTY); |
|
|
1023 | |
|
|
1024 | backend = 0; |
|
|
1025 | } |
|
|
1026 | |
|
|
1027 | void inline_size infy_fork (EV_P); |
|
|
1028 | |
|
|
1029 | void inline_size |
|
|
1030 | loop_fork (EV_P) |
|
|
1031 | { |
|
|
1032 | #if EV_USE_PORT |
|
|
1033 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1034 | #endif |
|
|
1035 | #if EV_USE_KQUEUE |
|
|
1036 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1037 | #endif |
|
|
1038 | #if EV_USE_EPOLL |
|
|
1039 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1040 | #endif |
|
|
1041 | #if EV_USE_INOTIFY |
|
|
1042 | infy_fork (EV_A); |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | if (ev_is_active (&sigev)) |
|
|
1046 | { |
|
|
1047 | /* default loop */ |
|
|
1048 | |
|
|
1049 | ev_ref (EV_A); |
|
|
1050 | ev_io_stop (EV_A_ &sigev); |
|
|
1051 | close (sigpipe [0]); |
|
|
1052 | close (sigpipe [1]); |
|
|
1053 | |
|
|
1054 | while (pipe (sigpipe)) |
|
|
1055 | syserr ("(libev) error creating pipe"); |
|
|
1056 | |
|
|
1057 | siginit (EV_A); |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | postfork = 0; |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | #if EV_MULTIPLICITY |
|
|
1064 | struct ev_loop * |
|
|
1065 | ev_loop_new (unsigned int flags) |
|
|
1066 | { |
|
|
1067 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1068 | |
|
|
1069 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1070 | |
|
|
1071 | loop_init (EV_A_ flags); |
|
|
1072 | |
|
|
1073 | if (ev_backend (EV_A)) |
|
|
1074 | return loop; |
|
|
1075 | |
|
|
1076 | return 0; |
|
|
1077 | } |
|
|
1078 | |
|
|
1079 | void |
|
|
1080 | ev_loop_destroy (EV_P) |
|
|
1081 | { |
|
|
1082 | loop_destroy (EV_A); |
|
|
1083 | ev_free (loop); |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | void |
|
|
1087 | ev_loop_fork (EV_P) |
|
|
1088 | { |
|
|
1089 | postfork = 1; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | #endif |
|
|
1093 | |
|
|
1094 | #if EV_MULTIPLICITY |
|
|
1095 | struct ev_loop * |
|
|
1096 | ev_default_loop_init (unsigned int flags) |
|
|
1097 | #else |
|
|
1098 | int |
|
|
1099 | ev_default_loop (unsigned int flags) |
|
|
1100 | #endif |
|
|
1101 | { |
|
|
1102 | if (sigpipe [0] == sigpipe [1]) |
|
|
1103 | if (pipe (sigpipe)) |
|
|
1104 | return 0; |
|
|
1105 | |
|
|
1106 | if (!ev_default_loop_ptr) |
|
|
1107 | { |
|
|
1108 | #if EV_MULTIPLICITY |
|
|
1109 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1110 | #else |
|
|
1111 | ev_default_loop_ptr = 1; |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | loop_init (EV_A_ flags); |
|
|
1115 | |
|
|
1116 | if (ev_backend (EV_A)) |
592 | { |
1117 | { |
593 | ev_watcher_init (&sigev, sigcb); |
|
|
594 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
595 | siginit (); |
1118 | siginit (EV_A); |
596 | |
1119 | |
597 | #ifndef WIN32 |
1120 | #ifndef _WIN32 |
598 | ev_signal_init (&childev, childcb, SIGCHLD); |
1121 | ev_signal_init (&childev, childcb, SIGCHLD); |
599 | ev_set_priority (&childev, EV_MAXPRI); |
1122 | ev_set_priority (&childev, EV_MAXPRI); |
600 | ev_signal_start (&childev); |
1123 | ev_signal_start (EV_A_ &childev); |
|
|
1124 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
601 | #endif |
1125 | #endif |
602 | } |
1126 | } |
|
|
1127 | else |
|
|
1128 | ev_default_loop_ptr = 0; |
603 | } |
1129 | } |
604 | |
1130 | |
605 | return ev_method; |
1131 | return ev_default_loop_ptr; |
|
|
1132 | } |
|
|
1133 | |
|
|
1134 | void |
|
|
1135 | ev_default_destroy (void) |
|
|
1136 | { |
|
|
1137 | #if EV_MULTIPLICITY |
|
|
1138 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1139 | #endif |
|
|
1140 | |
|
|
1141 | #ifndef _WIN32 |
|
|
1142 | ev_ref (EV_A); /* child watcher */ |
|
|
1143 | ev_signal_stop (EV_A_ &childev); |
|
|
1144 | #endif |
|
|
1145 | |
|
|
1146 | ev_ref (EV_A); /* signal watcher */ |
|
|
1147 | ev_io_stop (EV_A_ &sigev); |
|
|
1148 | |
|
|
1149 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1150 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1151 | |
|
|
1152 | loop_destroy (EV_A); |
|
|
1153 | } |
|
|
1154 | |
|
|
1155 | void |
|
|
1156 | ev_default_fork (void) |
|
|
1157 | { |
|
|
1158 | #if EV_MULTIPLICITY |
|
|
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1160 | #endif |
|
|
1161 | |
|
|
1162 | if (backend) |
|
|
1163 | postfork = 1; |
606 | } |
1164 | } |
607 | |
1165 | |
608 | /*****************************************************************************/ |
1166 | /*****************************************************************************/ |
609 | |
1167 | |
610 | void |
1168 | void inline_speed |
611 | ev_fork_prepare (void) |
|
|
612 | { |
|
|
613 | /* nop */ |
|
|
614 | } |
|
|
615 | |
|
|
616 | void |
|
|
617 | ev_fork_parent (void) |
|
|
618 | { |
|
|
619 | /* nop */ |
|
|
620 | } |
|
|
621 | |
|
|
622 | void |
|
|
623 | ev_fork_child (void) |
|
|
624 | { |
|
|
625 | #if EV_USE_EPOLL |
|
|
626 | if (ev_method == EVMETHOD_EPOLL) |
|
|
627 | epoll_postfork_child (); |
|
|
628 | #endif |
|
|
629 | |
|
|
630 | ev_io_stop (&sigev); |
|
|
631 | close (sigpipe [0]); |
|
|
632 | close (sigpipe [1]); |
|
|
633 | pipe (sigpipe); |
|
|
634 | siginit (); |
|
|
635 | } |
|
|
636 | |
|
|
637 | /*****************************************************************************/ |
|
|
638 | |
|
|
639 | static void |
|
|
640 | call_pending (void) |
1169 | call_pending (EV_P) |
641 | { |
1170 | { |
642 | int pri; |
1171 | int pri; |
643 | |
1172 | |
644 | for (pri = NUMPRI; pri--; ) |
1173 | for (pri = NUMPRI; pri--; ) |
645 | while (pendingcnt [pri]) |
1174 | while (pendingcnt [pri]) |
646 | { |
1175 | { |
647 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1176 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
648 | |
1177 | |
649 | if (p->w) |
1178 | if (expect_true (p->w)) |
650 | { |
1179 | { |
|
|
1180 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1181 | |
651 | p->w->pending = 0; |
1182 | p->w->pending = 0; |
652 | p->w->cb (p->w, p->events); |
1183 | EV_CB_INVOKE (p->w, p->events); |
653 | } |
1184 | } |
654 | } |
1185 | } |
655 | } |
1186 | } |
656 | |
1187 | |
657 | static void |
1188 | void inline_size |
658 | timers_reify (void) |
1189 | timers_reify (EV_P) |
659 | { |
1190 | { |
660 | while (timercnt && timers [0]->at <= now) |
1191 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
661 | { |
1192 | { |
662 | struct ev_timer *w = timers [0]; |
1193 | ev_timer *w = timers [0]; |
|
|
1194 | |
|
|
1195 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
663 | |
1196 | |
664 | /* first reschedule or stop timer */ |
1197 | /* first reschedule or stop timer */ |
665 | if (w->repeat) |
1198 | if (w->repeat) |
666 | { |
1199 | { |
667 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1200 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1201 | |
668 | w->at = now + w->repeat; |
1202 | ((WT)w)->at += w->repeat; |
|
|
1203 | if (((WT)w)->at < mn_now) |
|
|
1204 | ((WT)w)->at = mn_now; |
|
|
1205 | |
669 | downheap ((WT *)timers, timercnt, 0); |
1206 | downheap ((WT *)timers, timercnt, 0); |
670 | } |
1207 | } |
671 | else |
1208 | else |
672 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1209 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
673 | |
1210 | |
674 | event ((W)w, EV_TIMEOUT); |
1211 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
675 | } |
1212 | } |
676 | } |
1213 | } |
677 | |
1214 | |
678 | static void |
1215 | #if EV_PERIODIC_ENABLE |
|
|
1216 | void inline_size |
679 | periodics_reify (void) |
1217 | periodics_reify (EV_P) |
680 | { |
1218 | { |
681 | while (periodiccnt && periodics [0]->at <= ev_now) |
1219 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
682 | { |
1220 | { |
683 | struct ev_periodic *w = periodics [0]; |
1221 | ev_periodic *w = periodics [0]; |
|
|
1222 | |
|
|
1223 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
684 | |
1224 | |
685 | /* first reschedule or stop timer */ |
1225 | /* first reschedule or stop timer */ |
686 | if (w->interval) |
1226 | if (w->reschedule_cb) |
687 | { |
1227 | { |
|
|
1228 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1229 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1230 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1231 | } |
|
|
1232 | else if (w->interval) |
|
|
1233 | { |
688 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1234 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
689 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1235 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
690 | downheap ((WT *)periodics, periodiccnt, 0); |
1236 | downheap ((WT *)periodics, periodiccnt, 0); |
691 | } |
1237 | } |
692 | else |
1238 | else |
693 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1239 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
694 | |
1240 | |
695 | event ((W)w, EV_PERIODIC); |
1241 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
696 | } |
1242 | } |
697 | } |
1243 | } |
698 | |
1244 | |
699 | static void |
1245 | static void noinline |
700 | periodics_reschedule (ev_tstamp diff) |
1246 | periodics_reschedule (EV_P) |
701 | { |
1247 | { |
702 | int i; |
1248 | int i; |
703 | |
1249 | |
704 | /* adjust periodics after time jump */ |
1250 | /* adjust periodics after time jump */ |
705 | for (i = 0; i < periodiccnt; ++i) |
1251 | for (i = 0; i < periodiccnt; ++i) |
706 | { |
1252 | { |
707 | struct ev_periodic *w = periodics [i]; |
1253 | ev_periodic *w = periodics [i]; |
708 | |
1254 | |
|
|
1255 | if (w->reschedule_cb) |
|
|
1256 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
709 | if (w->interval) |
1257 | else if (w->interval) |
|
|
1258 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | /* now rebuild the heap */ |
|
|
1262 | for (i = periodiccnt >> 1; i--; ) |
|
|
1263 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1264 | } |
|
|
1265 | #endif |
|
|
1266 | |
|
|
1267 | #if EV_IDLE_ENABLE |
|
|
1268 | void inline_size |
|
|
1269 | idle_reify (EV_P) |
|
|
1270 | { |
|
|
1271 | if (expect_false (idleall)) |
|
|
1272 | { |
|
|
1273 | int pri; |
|
|
1274 | |
|
|
1275 | for (pri = NUMPRI; pri--; ) |
710 | { |
1276 | { |
711 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1277 | if (pendingcnt [pri]) |
|
|
1278 | break; |
712 | |
1279 | |
713 | if (fabs (diff) >= 1e-4) |
1280 | if (idlecnt [pri]) |
714 | { |
1281 | { |
715 | ev_periodic_stop (w); |
1282 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
716 | ev_periodic_start (w); |
1283 | break; |
717 | |
|
|
718 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
719 | } |
1284 | } |
720 | } |
1285 | } |
721 | } |
1286 | } |
722 | } |
1287 | } |
|
|
1288 | #endif |
723 | |
1289 | |
724 | static int |
1290 | int inline_size |
725 | time_update_monotonic (void) |
1291 | time_update_monotonic (EV_P) |
726 | { |
1292 | { |
727 | now = get_clock (); |
1293 | mn_now = get_clock (); |
728 | |
1294 | |
729 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
1295 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
730 | { |
1296 | { |
731 | ev_now = now + diff; |
1297 | ev_rt_now = rtmn_diff + mn_now; |
732 | return 0; |
1298 | return 0; |
733 | } |
1299 | } |
734 | else |
1300 | else |
735 | { |
1301 | { |
736 | now_floor = now; |
1302 | now_floor = mn_now; |
737 | ev_now = ev_time (); |
1303 | ev_rt_now = ev_time (); |
738 | return 1; |
1304 | return 1; |
739 | } |
1305 | } |
740 | } |
1306 | } |
741 | |
1307 | |
742 | static void |
1308 | void inline_size |
743 | time_update (void) |
1309 | time_update (EV_P) |
744 | { |
1310 | { |
745 | int i; |
1311 | int i; |
746 | |
1312 | |
747 | #if EV_USE_MONOTONIC |
1313 | #if EV_USE_MONOTONIC |
748 | if (expect_true (have_monotonic)) |
1314 | if (expect_true (have_monotonic)) |
749 | { |
1315 | { |
750 | if (time_update_monotonic ()) |
1316 | if (time_update_monotonic (EV_A)) |
751 | { |
1317 | { |
752 | ev_tstamp odiff = diff; |
1318 | ev_tstamp odiff = rtmn_diff; |
753 | |
1319 | |
754 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1320 | /* loop a few times, before making important decisions. |
|
|
1321 | * on the choice of "4": one iteration isn't enough, |
|
|
1322 | * in case we get preempted during the calls to |
|
|
1323 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1324 | * to succeed in that case, though. and looping a few more times |
|
|
1325 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1326 | * in the unlikely event of having been preempted here. |
|
|
1327 | */ |
|
|
1328 | for (i = 4; --i; ) |
755 | { |
1329 | { |
756 | diff = ev_now - now; |
1330 | rtmn_diff = ev_rt_now - mn_now; |
757 | |
1331 | |
758 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1332 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
759 | return; /* all is well */ |
1333 | return; /* all is well */ |
760 | |
1334 | |
761 | ev_now = ev_time (); |
1335 | ev_rt_now = ev_time (); |
762 | now = get_clock (); |
1336 | mn_now = get_clock (); |
763 | now_floor = now; |
1337 | now_floor = mn_now; |
764 | } |
1338 | } |
765 | |
1339 | |
|
|
1340 | # if EV_PERIODIC_ENABLE |
766 | periodics_reschedule (diff - odiff); |
1341 | periodics_reschedule (EV_A); |
|
|
1342 | # endif |
767 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1343 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1344 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
768 | } |
1345 | } |
769 | } |
1346 | } |
770 | else |
1347 | else |
771 | #endif |
1348 | #endif |
772 | { |
1349 | { |
773 | ev_now = ev_time (); |
1350 | ev_rt_now = ev_time (); |
774 | |
1351 | |
775 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1352 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
776 | { |
1353 | { |
|
|
1354 | #if EV_PERIODIC_ENABLE |
777 | periodics_reschedule (ev_now - now); |
1355 | periodics_reschedule (EV_A); |
|
|
1356 | #endif |
778 | |
1357 | |
779 | /* adjust timers. this is easy, as the offset is the same for all */ |
1358 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
780 | for (i = 0; i < timercnt; ++i) |
1359 | for (i = 0; i < timercnt; ++i) |
781 | timers [i]->at += diff; |
1360 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
782 | } |
1361 | } |
783 | |
1362 | |
784 | now = ev_now; |
1363 | mn_now = ev_rt_now; |
785 | } |
1364 | } |
786 | } |
1365 | } |
787 | |
1366 | |
788 | int ev_loop_done; |
1367 | void |
|
|
1368 | ev_ref (EV_P) |
|
|
1369 | { |
|
|
1370 | ++activecnt; |
|
|
1371 | } |
789 | |
1372 | |
|
|
1373 | void |
|
|
1374 | ev_unref (EV_P) |
|
|
1375 | { |
|
|
1376 | --activecnt; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | static int loop_done; |
|
|
1380 | |
|
|
1381 | void |
790 | void ev_loop (int flags) |
1382 | ev_loop (EV_P_ int flags) |
791 | { |
1383 | { |
792 | double block; |
|
|
793 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1384 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1385 | ? EVUNLOOP_ONE |
|
|
1386 | : EVUNLOOP_CANCEL; |
|
|
1387 | |
|
|
1388 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
794 | |
1389 | |
795 | do |
1390 | do |
796 | { |
1391 | { |
|
|
1392 | #ifndef _WIN32 |
|
|
1393 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1394 | if (expect_false (getpid () != curpid)) |
|
|
1395 | { |
|
|
1396 | curpid = getpid (); |
|
|
1397 | postfork = 1; |
|
|
1398 | } |
|
|
1399 | #endif |
|
|
1400 | |
|
|
1401 | #if EV_FORK_ENABLE |
|
|
1402 | /* we might have forked, so queue fork handlers */ |
|
|
1403 | if (expect_false (postfork)) |
|
|
1404 | if (forkcnt) |
|
|
1405 | { |
|
|
1406 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1407 | call_pending (EV_A); |
|
|
1408 | } |
|
|
1409 | #endif |
|
|
1410 | |
797 | /* queue check watchers (and execute them) */ |
1411 | /* queue check watchers (and execute them) */ |
798 | if (expect_false (preparecnt)) |
1412 | if (expect_false (preparecnt)) |
799 | { |
1413 | { |
800 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1414 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
801 | call_pending (); |
1415 | call_pending (EV_A); |
802 | } |
1416 | } |
803 | |
1417 | |
|
|
1418 | if (expect_false (!activecnt)) |
|
|
1419 | break; |
|
|
1420 | |
|
|
1421 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1422 | if (expect_false (postfork)) |
|
|
1423 | loop_fork (EV_A); |
|
|
1424 | |
804 | /* update fd-related kernel structures */ |
1425 | /* update fd-related kernel structures */ |
805 | fd_reify (); |
1426 | fd_reify (EV_A); |
806 | |
1427 | |
807 | /* calculate blocking time */ |
1428 | /* calculate blocking time */ |
|
|
1429 | { |
|
|
1430 | ev_tstamp block; |
808 | |
1431 | |
809 | /* we only need this for !monotonic clockor timers, but as we basically |
1432 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
810 | always have timers, we just calculate it always */ |
1433 | block = 0.; /* do not block at all */ |
|
|
1434 | else |
|
|
1435 | { |
|
|
1436 | /* update time to cancel out callback processing overhead */ |
811 | #if EV_USE_MONOTONIC |
1437 | #if EV_USE_MONOTONIC |
812 | if (expect_true (have_monotonic)) |
1438 | if (expect_true (have_monotonic)) |
813 | time_update_monotonic (); |
1439 | time_update_monotonic (EV_A); |
814 | else |
1440 | else |
815 | #endif |
1441 | #endif |
816 | { |
1442 | { |
817 | ev_now = ev_time (); |
1443 | ev_rt_now = ev_time (); |
818 | now = ev_now; |
1444 | mn_now = ev_rt_now; |
819 | } |
1445 | } |
820 | |
1446 | |
821 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
822 | block = 0.; |
|
|
823 | else |
|
|
824 | { |
|
|
825 | block = MAX_BLOCKTIME; |
1447 | block = MAX_BLOCKTIME; |
826 | |
1448 | |
827 | if (timercnt) |
1449 | if (timercnt) |
828 | { |
1450 | { |
829 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1451 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
830 | if (block > to) block = to; |
1452 | if (block > to) block = to; |
831 | } |
1453 | } |
832 | |
1454 | |
|
|
1455 | #if EV_PERIODIC_ENABLE |
833 | if (periodiccnt) |
1456 | if (periodiccnt) |
834 | { |
1457 | { |
835 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1458 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
836 | if (block > to) block = to; |
1459 | if (block > to) block = to; |
837 | } |
1460 | } |
|
|
1461 | #endif |
838 | |
1462 | |
839 | if (block < 0.) block = 0.; |
1463 | if (expect_false (block < 0.)) block = 0.; |
840 | } |
1464 | } |
841 | |
1465 | |
842 | method_poll (block); |
1466 | ++loop_count; |
|
|
1467 | backend_poll (EV_A_ block); |
|
|
1468 | } |
843 | |
1469 | |
844 | /* update ev_now, do magic */ |
1470 | /* update ev_rt_now, do magic */ |
845 | time_update (); |
1471 | time_update (EV_A); |
846 | |
1472 | |
847 | /* queue pending timers and reschedule them */ |
1473 | /* queue pending timers and reschedule them */ |
848 | timers_reify (); /* relative timers called last */ |
1474 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1475 | #if EV_PERIODIC_ENABLE |
849 | periodics_reify (); /* absolute timers called first */ |
1476 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1477 | #endif |
850 | |
1478 | |
|
|
1479 | #if EV_IDLE_ENABLE |
851 | /* queue idle watchers unless io or timers are pending */ |
1480 | /* queue idle watchers unless other events are pending */ |
852 | if (!pendingcnt) |
1481 | idle_reify (EV_A); |
853 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1482 | #endif |
854 | |
1483 | |
855 | /* queue check watchers, to be executed first */ |
1484 | /* queue check watchers, to be executed first */ |
856 | if (checkcnt) |
1485 | if (expect_false (checkcnt)) |
857 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1486 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
858 | |
1487 | |
859 | call_pending (); |
1488 | call_pending (EV_A); |
860 | } |
|
|
861 | while (!ev_loop_done); |
|
|
862 | |
1489 | |
863 | if (ev_loop_done != 2) |
1490 | } |
|
|
1491 | while (expect_true (activecnt && !loop_done)); |
|
|
1492 | |
|
|
1493 | if (loop_done == EVUNLOOP_ONE) |
|
|
1494 | loop_done = EVUNLOOP_CANCEL; |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | void |
|
|
1498 | ev_unloop (EV_P_ int how) |
|
|
1499 | { |
864 | ev_loop_done = 0; |
1500 | loop_done = how; |
865 | } |
1501 | } |
866 | |
1502 | |
867 | /*****************************************************************************/ |
1503 | /*****************************************************************************/ |
868 | |
1504 | |
869 | static void |
1505 | void inline_size |
870 | wlist_add (WL *head, WL elem) |
1506 | wlist_add (WL *head, WL elem) |
871 | { |
1507 | { |
872 | elem->next = *head; |
1508 | elem->next = *head; |
873 | *head = elem; |
1509 | *head = elem; |
874 | } |
1510 | } |
875 | |
1511 | |
876 | static void |
1512 | void inline_size |
877 | wlist_del (WL *head, WL elem) |
1513 | wlist_del (WL *head, WL elem) |
878 | { |
1514 | { |
879 | while (*head) |
1515 | while (*head) |
880 | { |
1516 | { |
881 | if (*head == elem) |
1517 | if (*head == elem) |
… | |
… | |
886 | |
1522 | |
887 | head = &(*head)->next; |
1523 | head = &(*head)->next; |
888 | } |
1524 | } |
889 | } |
1525 | } |
890 | |
1526 | |
891 | static void |
1527 | void inline_speed |
892 | ev_clear_pending (W w) |
1528 | clear_pending (EV_P_ W w) |
893 | { |
1529 | { |
894 | if (w->pending) |
1530 | if (w->pending) |
895 | { |
1531 | { |
896 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1532 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
897 | w->pending = 0; |
1533 | w->pending = 0; |
898 | } |
1534 | } |
899 | } |
1535 | } |
900 | |
1536 | |
901 | static void |
1537 | void |
|
|
1538 | ev_clear_pending (EV_P_ void *w, int invoke) |
|
|
1539 | { |
|
|
1540 | W w_ = (W)w; |
|
|
1541 | int pending = w_->pending; |
|
|
1542 | |
|
|
1543 | if (pending) |
|
|
1544 | { |
|
|
1545 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1546 | |
|
|
1547 | w_->pending = 0; |
|
|
1548 | p->w = 0; |
|
|
1549 | |
|
|
1550 | if (invoke) |
|
|
1551 | EV_CB_INVOKE (w_, p->events); |
|
|
1552 | } |
|
|
1553 | } |
|
|
1554 | |
|
|
1555 | void inline_size |
|
|
1556 | pri_adjust (EV_P_ W w) |
|
|
1557 | { |
|
|
1558 | int pri = w->priority; |
|
|
1559 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1560 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1561 | w->priority = pri; |
|
|
1562 | } |
|
|
1563 | |
|
|
1564 | void inline_speed |
902 | ev_start (W w, int active) |
1565 | ev_start (EV_P_ W w, int active) |
903 | { |
1566 | { |
904 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1567 | pri_adjust (EV_A_ w); |
905 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
906 | |
|
|
907 | w->active = active; |
1568 | w->active = active; |
|
|
1569 | ev_ref (EV_A); |
908 | } |
1570 | } |
909 | |
1571 | |
910 | static void |
1572 | void inline_size |
911 | ev_stop (W w) |
1573 | ev_stop (EV_P_ W w) |
912 | { |
1574 | { |
|
|
1575 | ev_unref (EV_A); |
913 | w->active = 0; |
1576 | w->active = 0; |
914 | } |
1577 | } |
915 | |
1578 | |
916 | /*****************************************************************************/ |
1579 | /*****************************************************************************/ |
917 | |
1580 | |
918 | void |
1581 | void |
919 | ev_io_start (struct ev_io *w) |
1582 | ev_io_start (EV_P_ ev_io *w) |
920 | { |
1583 | { |
921 | int fd = w->fd; |
1584 | int fd = w->fd; |
922 | |
1585 | |
923 | if (ev_is_active (w)) |
1586 | if (expect_false (ev_is_active (w))) |
924 | return; |
1587 | return; |
925 | |
1588 | |
926 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1589 | assert (("ev_io_start called with negative fd", fd >= 0)); |
927 | |
1590 | |
928 | ev_start ((W)w, 1); |
1591 | ev_start (EV_A_ (W)w, 1); |
929 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1592 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
930 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1593 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
931 | |
1594 | |
932 | fd_change (fd); |
1595 | fd_change (EV_A_ fd); |
933 | } |
1596 | } |
934 | |
1597 | |
935 | void |
1598 | void |
936 | ev_io_stop (struct ev_io *w) |
1599 | ev_io_stop (EV_P_ ev_io *w) |
937 | { |
1600 | { |
938 | ev_clear_pending ((W)w); |
1601 | clear_pending (EV_A_ (W)w); |
939 | if (!ev_is_active (w)) |
1602 | if (expect_false (!ev_is_active (w))) |
940 | return; |
1603 | return; |
|
|
1604 | |
|
|
1605 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
941 | |
1606 | |
942 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1607 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
943 | ev_stop ((W)w); |
1608 | ev_stop (EV_A_ (W)w); |
944 | |
1609 | |
945 | fd_change (w->fd); |
1610 | fd_change (EV_A_ w->fd); |
946 | } |
1611 | } |
947 | |
1612 | |
948 | void |
1613 | void |
949 | ev_timer_start (struct ev_timer *w) |
1614 | ev_timer_start (EV_P_ ev_timer *w) |
950 | { |
1615 | { |
951 | if (ev_is_active (w)) |
1616 | if (expect_false (ev_is_active (w))) |
952 | return; |
1617 | return; |
953 | |
1618 | |
954 | w->at += now; |
1619 | ((WT)w)->at += mn_now; |
955 | |
1620 | |
956 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1621 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
957 | |
1622 | |
958 | ev_start ((W)w, ++timercnt); |
1623 | ev_start (EV_A_ (W)w, ++timercnt); |
959 | array_needsize (timers, timermax, timercnt, ); |
1624 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
960 | timers [timercnt - 1] = w; |
1625 | timers [timercnt - 1] = w; |
961 | upheap ((WT *)timers, timercnt - 1); |
1626 | upheap ((WT *)timers, timercnt - 1); |
962 | } |
|
|
963 | |
1627 | |
|
|
1628 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1629 | } |
|
|
1630 | |
964 | void |
1631 | void |
965 | ev_timer_stop (struct ev_timer *w) |
1632 | ev_timer_stop (EV_P_ ev_timer *w) |
966 | { |
1633 | { |
967 | ev_clear_pending ((W)w); |
1634 | clear_pending (EV_A_ (W)w); |
968 | if (!ev_is_active (w)) |
1635 | if (expect_false (!ev_is_active (w))) |
969 | return; |
1636 | return; |
970 | |
1637 | |
971 | if (w->active < timercnt--) |
1638 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1639 | |
|
|
1640 | { |
|
|
1641 | int active = ((W)w)->active; |
|
|
1642 | |
|
|
1643 | if (expect_true (--active < --timercnt)) |
972 | { |
1644 | { |
973 | timers [w->active - 1] = timers [timercnt]; |
1645 | timers [active] = timers [timercnt]; |
974 | downheap ((WT *)timers, timercnt, w->active - 1); |
1646 | adjustheap ((WT *)timers, timercnt, active); |
975 | } |
1647 | } |
|
|
1648 | } |
976 | |
1649 | |
977 | w->at = w->repeat; |
1650 | ((WT)w)->at -= mn_now; |
978 | |
1651 | |
979 | ev_stop ((W)w); |
1652 | ev_stop (EV_A_ (W)w); |
980 | } |
1653 | } |
981 | |
1654 | |
982 | void |
1655 | void |
983 | ev_timer_again (struct ev_timer *w) |
1656 | ev_timer_again (EV_P_ ev_timer *w) |
984 | { |
1657 | { |
985 | if (ev_is_active (w)) |
1658 | if (ev_is_active (w)) |
986 | { |
1659 | { |
987 | if (w->repeat) |
1660 | if (w->repeat) |
988 | { |
1661 | { |
989 | w->at = now + w->repeat; |
1662 | ((WT)w)->at = mn_now + w->repeat; |
990 | downheap ((WT *)timers, timercnt, w->active - 1); |
1663 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
991 | } |
1664 | } |
992 | else |
1665 | else |
993 | ev_timer_stop (w); |
1666 | ev_timer_stop (EV_A_ w); |
994 | } |
1667 | } |
995 | else if (w->repeat) |
1668 | else if (w->repeat) |
|
|
1669 | { |
|
|
1670 | w->at = w->repeat; |
996 | ev_timer_start (w); |
1671 | ev_timer_start (EV_A_ w); |
|
|
1672 | } |
997 | } |
1673 | } |
998 | |
1674 | |
|
|
1675 | #if EV_PERIODIC_ENABLE |
999 | void |
1676 | void |
1000 | ev_periodic_start (struct ev_periodic *w) |
1677 | ev_periodic_start (EV_P_ ev_periodic *w) |
1001 | { |
1678 | { |
1002 | if (ev_is_active (w)) |
1679 | if (expect_false (ev_is_active (w))) |
1003 | return; |
1680 | return; |
1004 | |
1681 | |
|
|
1682 | if (w->reschedule_cb) |
|
|
1683 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1684 | else if (w->interval) |
|
|
1685 | { |
1005 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1686 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1006 | |
|
|
1007 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1687 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1008 | if (w->interval) |
|
|
1009 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1688 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1689 | } |
1010 | |
1690 | |
1011 | ev_start ((W)w, ++periodiccnt); |
1691 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1012 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1692 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1013 | periodics [periodiccnt - 1] = w; |
1693 | periodics [periodiccnt - 1] = w; |
1014 | upheap ((WT *)periodics, periodiccnt - 1); |
1694 | upheap ((WT *)periodics, periodiccnt - 1); |
1015 | } |
|
|
1016 | |
1695 | |
|
|
1696 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1697 | } |
|
|
1698 | |
1017 | void |
1699 | void |
1018 | ev_periodic_stop (struct ev_periodic *w) |
1700 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1019 | { |
1701 | { |
1020 | ev_clear_pending ((W)w); |
1702 | clear_pending (EV_A_ (W)w); |
1021 | if (!ev_is_active (w)) |
1703 | if (expect_false (!ev_is_active (w))) |
1022 | return; |
1704 | return; |
1023 | |
1705 | |
1024 | if (w->active < periodiccnt--) |
1706 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1707 | |
|
|
1708 | { |
|
|
1709 | int active = ((W)w)->active; |
|
|
1710 | |
|
|
1711 | if (expect_true (--active < --periodiccnt)) |
1025 | { |
1712 | { |
1026 | periodics [w->active - 1] = periodics [periodiccnt]; |
1713 | periodics [active] = periodics [periodiccnt]; |
1027 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1714 | adjustheap ((WT *)periodics, periodiccnt, active); |
1028 | } |
1715 | } |
|
|
1716 | } |
1029 | |
1717 | |
1030 | ev_stop ((W)w); |
1718 | ev_stop (EV_A_ (W)w); |
1031 | } |
1719 | } |
|
|
1720 | |
|
|
1721 | void |
|
|
1722 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1723 | { |
|
|
1724 | /* TODO: use adjustheap and recalculation */ |
|
|
1725 | ev_periodic_stop (EV_A_ w); |
|
|
1726 | ev_periodic_start (EV_A_ w); |
|
|
1727 | } |
|
|
1728 | #endif |
1032 | |
1729 | |
1033 | #ifndef SA_RESTART |
1730 | #ifndef SA_RESTART |
1034 | # define SA_RESTART 0 |
1731 | # define SA_RESTART 0 |
1035 | #endif |
1732 | #endif |
1036 | |
1733 | |
1037 | void |
1734 | void |
1038 | ev_signal_start (struct ev_signal *w) |
1735 | ev_signal_start (EV_P_ ev_signal *w) |
1039 | { |
1736 | { |
|
|
1737 | #if EV_MULTIPLICITY |
|
|
1738 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1739 | #endif |
1040 | if (ev_is_active (w)) |
1740 | if (expect_false (ev_is_active (w))) |
1041 | return; |
1741 | return; |
1042 | |
1742 | |
1043 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1743 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1044 | |
1744 | |
1045 | ev_start ((W)w, 1); |
1745 | ev_start (EV_A_ (W)w, 1); |
1046 | array_needsize (signals, signalmax, w->signum, signals_init); |
1746 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1047 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1747 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1048 | |
1748 | |
1049 | if (!w->next) |
1749 | if (!((WL)w)->next) |
1050 | { |
1750 | { |
|
|
1751 | #if _WIN32 |
|
|
1752 | signal (w->signum, sighandler); |
|
|
1753 | #else |
1051 | struct sigaction sa; |
1754 | struct sigaction sa; |
1052 | sa.sa_handler = sighandler; |
1755 | sa.sa_handler = sighandler; |
1053 | sigfillset (&sa.sa_mask); |
1756 | sigfillset (&sa.sa_mask); |
1054 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1757 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1055 | sigaction (w->signum, &sa, 0); |
1758 | sigaction (w->signum, &sa, 0); |
|
|
1759 | #endif |
1056 | } |
1760 | } |
1057 | } |
1761 | } |
1058 | |
1762 | |
1059 | void |
1763 | void |
1060 | ev_signal_stop (struct ev_signal *w) |
1764 | ev_signal_stop (EV_P_ ev_signal *w) |
1061 | { |
1765 | { |
1062 | ev_clear_pending ((W)w); |
1766 | clear_pending (EV_A_ (W)w); |
1063 | if (!ev_is_active (w)) |
1767 | if (expect_false (!ev_is_active (w))) |
1064 | return; |
1768 | return; |
1065 | |
1769 | |
1066 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1770 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1067 | ev_stop ((W)w); |
1771 | ev_stop (EV_A_ (W)w); |
1068 | |
1772 | |
1069 | if (!signals [w->signum - 1].head) |
1773 | if (!signals [w->signum - 1].head) |
1070 | signal (w->signum, SIG_DFL); |
1774 | signal (w->signum, SIG_DFL); |
1071 | } |
1775 | } |
1072 | |
1776 | |
1073 | void |
1777 | void |
1074 | ev_idle_start (struct ev_idle *w) |
1778 | ev_child_start (EV_P_ ev_child *w) |
1075 | { |
1779 | { |
|
|
1780 | #if EV_MULTIPLICITY |
|
|
1781 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1782 | #endif |
1076 | if (ev_is_active (w)) |
1783 | if (expect_false (ev_is_active (w))) |
1077 | return; |
1784 | return; |
1078 | |
1785 | |
1079 | ev_start ((W)w, ++idlecnt); |
1786 | ev_start (EV_A_ (W)w, 1); |
1080 | array_needsize (idles, idlemax, idlecnt, ); |
1787 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1081 | idles [idlecnt - 1] = w; |
|
|
1082 | } |
1788 | } |
1083 | |
1789 | |
1084 | void |
1790 | void |
1085 | ev_idle_stop (struct ev_idle *w) |
1791 | ev_child_stop (EV_P_ ev_child *w) |
1086 | { |
1792 | { |
1087 | ev_clear_pending ((W)w); |
1793 | clear_pending (EV_A_ (W)w); |
1088 | if (ev_is_active (w)) |
1794 | if (expect_false (!ev_is_active (w))) |
1089 | return; |
1795 | return; |
1090 | |
1796 | |
1091 | idles [w->active - 1] = idles [--idlecnt]; |
1797 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1092 | ev_stop ((W)w); |
1798 | ev_stop (EV_A_ (W)w); |
1093 | } |
1799 | } |
1094 | |
1800 | |
|
|
1801 | #if EV_STAT_ENABLE |
|
|
1802 | |
|
|
1803 | # ifdef _WIN32 |
|
|
1804 | # undef lstat |
|
|
1805 | # define lstat(a,b) _stati64 (a,b) |
|
|
1806 | # endif |
|
|
1807 | |
|
|
1808 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1809 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1810 | |
|
|
1811 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1812 | |
|
|
1813 | #if EV_USE_INOTIFY |
|
|
1814 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1815 | |
|
|
1816 | static void noinline |
|
|
1817 | infy_add (EV_P_ ev_stat *w) |
|
|
1818 | { |
|
|
1819 | 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); |
|
|
1820 | |
|
|
1821 | if (w->wd < 0) |
|
|
1822 | { |
|
|
1823 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1824 | |
|
|
1825 | /* monitor some parent directory for speedup hints */ |
|
|
1826 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1827 | { |
|
|
1828 | char path [4096]; |
|
|
1829 | strcpy (path, w->path); |
|
|
1830 | |
|
|
1831 | do |
|
|
1832 | { |
|
|
1833 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1834 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1835 | |
|
|
1836 | char *pend = strrchr (path, '/'); |
|
|
1837 | |
|
|
1838 | if (!pend) |
|
|
1839 | break; /* whoops, no '/', complain to your admin */ |
|
|
1840 | |
|
|
1841 | *pend = 0; |
|
|
1842 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1843 | } |
|
|
1844 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1845 | } |
|
|
1846 | } |
|
|
1847 | else |
|
|
1848 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1849 | |
|
|
1850 | if (w->wd >= 0) |
|
|
1851 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1852 | } |
|
|
1853 | |
|
|
1854 | static void noinline |
|
|
1855 | infy_del (EV_P_ ev_stat *w) |
|
|
1856 | { |
|
|
1857 | int slot; |
|
|
1858 | int wd = w->wd; |
|
|
1859 | |
|
|
1860 | if (wd < 0) |
|
|
1861 | return; |
|
|
1862 | |
|
|
1863 | w->wd = -2; |
|
|
1864 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1865 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1866 | |
|
|
1867 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1868 | inotify_rm_watch (fs_fd, wd); |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | static void noinline |
|
|
1872 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1873 | { |
|
|
1874 | if (slot < 0) |
|
|
1875 | /* overflow, need to check for all hahs slots */ |
|
|
1876 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1877 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1878 | else |
|
|
1879 | { |
|
|
1880 | WL w_; |
|
|
1881 | |
|
|
1882 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1883 | { |
|
|
1884 | ev_stat *w = (ev_stat *)w_; |
|
|
1885 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1886 | |
|
|
1887 | if (w->wd == wd || wd == -1) |
|
|
1888 | { |
|
|
1889 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1890 | { |
|
|
1891 | w->wd = -1; |
|
|
1892 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1896 | } |
|
|
1897 | } |
|
|
1898 | } |
|
|
1899 | } |
|
|
1900 | |
|
|
1901 | static void |
|
|
1902 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1903 | { |
|
|
1904 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1905 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1906 | int ofs; |
|
|
1907 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1908 | |
|
|
1909 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1910 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1911 | } |
|
|
1912 | |
|
|
1913 | void inline_size |
|
|
1914 | infy_init (EV_P) |
|
|
1915 | { |
|
|
1916 | if (fs_fd != -2) |
|
|
1917 | return; |
|
|
1918 | |
|
|
1919 | fs_fd = inotify_init (); |
|
|
1920 | |
|
|
1921 | if (fs_fd >= 0) |
|
|
1922 | { |
|
|
1923 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1924 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1925 | ev_io_start (EV_A_ &fs_w); |
|
|
1926 | } |
|
|
1927 | } |
|
|
1928 | |
|
|
1929 | void inline_size |
|
|
1930 | infy_fork (EV_P) |
|
|
1931 | { |
|
|
1932 | int slot; |
|
|
1933 | |
|
|
1934 | if (fs_fd < 0) |
|
|
1935 | return; |
|
|
1936 | |
|
|
1937 | close (fs_fd); |
|
|
1938 | fs_fd = inotify_init (); |
|
|
1939 | |
|
|
1940 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1941 | { |
|
|
1942 | WL w_ = fs_hash [slot].head; |
|
|
1943 | fs_hash [slot].head = 0; |
|
|
1944 | |
|
|
1945 | while (w_) |
|
|
1946 | { |
|
|
1947 | ev_stat *w = (ev_stat *)w_; |
|
|
1948 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1949 | |
|
|
1950 | w->wd = -1; |
|
|
1951 | |
|
|
1952 | if (fs_fd >= 0) |
|
|
1953 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1954 | else |
|
|
1955 | ev_timer_start (EV_A_ &w->timer); |
|
|
1956 | } |
|
|
1957 | |
|
|
1958 | } |
|
|
1959 | } |
|
|
1960 | |
|
|
1961 | #endif |
|
|
1962 | |
1095 | void |
1963 | void |
|
|
1964 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1965 | { |
|
|
1966 | if (lstat (w->path, &w->attr) < 0) |
|
|
1967 | w->attr.st_nlink = 0; |
|
|
1968 | else if (!w->attr.st_nlink) |
|
|
1969 | w->attr.st_nlink = 1; |
|
|
1970 | } |
|
|
1971 | |
|
|
1972 | static void noinline |
|
|
1973 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1974 | { |
|
|
1975 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1976 | |
|
|
1977 | /* we copy this here each the time so that */ |
|
|
1978 | /* prev has the old value when the callback gets invoked */ |
|
|
1979 | w->prev = w->attr; |
|
|
1980 | ev_stat_stat (EV_A_ w); |
|
|
1981 | |
|
|
1982 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
1983 | if ( |
|
|
1984 | w->prev.st_dev != w->attr.st_dev |
|
|
1985 | || w->prev.st_ino != w->attr.st_ino |
|
|
1986 | || w->prev.st_mode != w->attr.st_mode |
|
|
1987 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
1988 | || w->prev.st_uid != w->attr.st_uid |
|
|
1989 | || w->prev.st_gid != w->attr.st_gid |
|
|
1990 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
1991 | || w->prev.st_size != w->attr.st_size |
|
|
1992 | || w->prev.st_atime != w->attr.st_atime |
|
|
1993 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
1994 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
1995 | ) { |
|
|
1996 | #if EV_USE_INOTIFY |
|
|
1997 | infy_del (EV_A_ w); |
|
|
1998 | infy_add (EV_A_ w); |
|
|
1999 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2000 | #endif |
|
|
2001 | |
|
|
2002 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2003 | } |
|
|
2004 | } |
|
|
2005 | |
|
|
2006 | void |
|
|
2007 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2008 | { |
|
|
2009 | if (expect_false (ev_is_active (w))) |
|
|
2010 | return; |
|
|
2011 | |
|
|
2012 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2013 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2014 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2015 | |
|
|
2016 | ev_stat_stat (EV_A_ w); |
|
|
2017 | |
|
|
2018 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2019 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2020 | |
|
|
2021 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2022 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2023 | |
|
|
2024 | #if EV_USE_INOTIFY |
|
|
2025 | infy_init (EV_A); |
|
|
2026 | |
|
|
2027 | if (fs_fd >= 0) |
|
|
2028 | infy_add (EV_A_ w); |
|
|
2029 | else |
|
|
2030 | #endif |
|
|
2031 | ev_timer_start (EV_A_ &w->timer); |
|
|
2032 | |
|
|
2033 | ev_start (EV_A_ (W)w, 1); |
|
|
2034 | } |
|
|
2035 | |
|
|
2036 | void |
|
|
2037 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2038 | { |
|
|
2039 | clear_pending (EV_A_ (W)w); |
|
|
2040 | if (expect_false (!ev_is_active (w))) |
|
|
2041 | return; |
|
|
2042 | |
|
|
2043 | #if EV_USE_INOTIFY |
|
|
2044 | infy_del (EV_A_ w); |
|
|
2045 | #endif |
|
|
2046 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2047 | |
|
|
2048 | ev_stop (EV_A_ (W)w); |
|
|
2049 | } |
|
|
2050 | #endif |
|
|
2051 | |
|
|
2052 | #if EV_IDLE_ENABLE |
|
|
2053 | void |
|
|
2054 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2055 | { |
|
|
2056 | if (expect_false (ev_is_active (w))) |
|
|
2057 | return; |
|
|
2058 | |
|
|
2059 | pri_adjust (EV_A_ (W)w); |
|
|
2060 | |
|
|
2061 | { |
|
|
2062 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2063 | |
|
|
2064 | ++idleall; |
|
|
2065 | ev_start (EV_A_ (W)w, active); |
|
|
2066 | |
|
|
2067 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2068 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2069 | } |
|
|
2070 | } |
|
|
2071 | |
|
|
2072 | void |
|
|
2073 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2074 | { |
|
|
2075 | clear_pending (EV_A_ (W)w); |
|
|
2076 | if (expect_false (!ev_is_active (w))) |
|
|
2077 | return; |
|
|
2078 | |
|
|
2079 | { |
|
|
2080 | int active = ((W)w)->active; |
|
|
2081 | |
|
|
2082 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2083 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2084 | |
|
|
2085 | ev_stop (EV_A_ (W)w); |
|
|
2086 | --idleall; |
|
|
2087 | } |
|
|
2088 | } |
|
|
2089 | #endif |
|
|
2090 | |
|
|
2091 | void |
1096 | ev_prepare_start (struct ev_prepare *w) |
2092 | ev_prepare_start (EV_P_ ev_prepare *w) |
1097 | { |
2093 | { |
1098 | if (ev_is_active (w)) |
2094 | if (expect_false (ev_is_active (w))) |
1099 | return; |
2095 | return; |
1100 | |
2096 | |
1101 | ev_start ((W)w, ++preparecnt); |
2097 | ev_start (EV_A_ (W)w, ++preparecnt); |
1102 | array_needsize (prepares, preparemax, preparecnt, ); |
2098 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1103 | prepares [preparecnt - 1] = w; |
2099 | prepares [preparecnt - 1] = w; |
1104 | } |
2100 | } |
1105 | |
2101 | |
1106 | void |
2102 | void |
1107 | ev_prepare_stop (struct ev_prepare *w) |
2103 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1108 | { |
2104 | { |
1109 | ev_clear_pending ((W)w); |
2105 | clear_pending (EV_A_ (W)w); |
1110 | if (ev_is_active (w)) |
2106 | if (expect_false (!ev_is_active (w))) |
1111 | return; |
2107 | return; |
1112 | |
2108 | |
|
|
2109 | { |
|
|
2110 | int active = ((W)w)->active; |
1113 | prepares [w->active - 1] = prepares [--preparecnt]; |
2111 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2112 | ((W)prepares [active - 1])->active = active; |
|
|
2113 | } |
|
|
2114 | |
1114 | ev_stop ((W)w); |
2115 | ev_stop (EV_A_ (W)w); |
1115 | } |
2116 | } |
1116 | |
2117 | |
1117 | void |
2118 | void |
1118 | ev_check_start (struct ev_check *w) |
2119 | ev_check_start (EV_P_ ev_check *w) |
1119 | { |
2120 | { |
1120 | if (ev_is_active (w)) |
2121 | if (expect_false (ev_is_active (w))) |
1121 | return; |
2122 | return; |
1122 | |
2123 | |
1123 | ev_start ((W)w, ++checkcnt); |
2124 | ev_start (EV_A_ (W)w, ++checkcnt); |
1124 | array_needsize (checks, checkmax, checkcnt, ); |
2125 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1125 | checks [checkcnt - 1] = w; |
2126 | checks [checkcnt - 1] = w; |
1126 | } |
2127 | } |
1127 | |
2128 | |
1128 | void |
2129 | void |
1129 | ev_check_stop (struct ev_check *w) |
2130 | ev_check_stop (EV_P_ ev_check *w) |
1130 | { |
2131 | { |
1131 | ev_clear_pending ((W)w); |
2132 | clear_pending (EV_A_ (W)w); |
1132 | if (ev_is_active (w)) |
2133 | if (expect_false (!ev_is_active (w))) |
1133 | return; |
2134 | return; |
1134 | |
2135 | |
|
|
2136 | { |
|
|
2137 | int active = ((W)w)->active; |
1135 | checks [w->active - 1] = checks [--checkcnt]; |
2138 | checks [active - 1] = checks [--checkcnt]; |
|
|
2139 | ((W)checks [active - 1])->active = active; |
|
|
2140 | } |
|
|
2141 | |
1136 | ev_stop ((W)w); |
2142 | ev_stop (EV_A_ (W)w); |
1137 | } |
2143 | } |
1138 | |
2144 | |
1139 | void |
2145 | #if EV_EMBED_ENABLE |
1140 | ev_child_start (struct ev_child *w) |
2146 | void noinline |
|
|
2147 | ev_embed_sweep (EV_P_ ev_embed *w) |
1141 | { |
2148 | { |
|
|
2149 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2150 | } |
|
|
2151 | |
|
|
2152 | static void |
|
|
2153 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2154 | { |
|
|
2155 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2156 | |
1142 | if (ev_is_active (w)) |
2157 | if (ev_cb (w)) |
1143 | return; |
2158 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2159 | else |
|
|
2160 | ev_embed_sweep (loop, w); |
|
|
2161 | } |
1144 | |
2162 | |
|
|
2163 | void |
|
|
2164 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2165 | { |
|
|
2166 | if (expect_false (ev_is_active (w))) |
|
|
2167 | return; |
|
|
2168 | |
|
|
2169 | { |
|
|
2170 | struct ev_loop *loop = w->loop; |
|
|
2171 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2172 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2173 | } |
|
|
2174 | |
|
|
2175 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2176 | ev_io_start (EV_A_ &w->io); |
|
|
2177 | |
1145 | ev_start ((W)w, 1); |
2178 | ev_start (EV_A_ (W)w, 1); |
1146 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1147 | } |
2179 | } |
1148 | |
2180 | |
1149 | void |
2181 | void |
1150 | ev_child_stop (struct ev_child *w) |
2182 | ev_embed_stop (EV_P_ ev_embed *w) |
1151 | { |
2183 | { |
1152 | ev_clear_pending ((W)w); |
2184 | clear_pending (EV_A_ (W)w); |
1153 | if (ev_is_active (w)) |
2185 | if (expect_false (!ev_is_active (w))) |
1154 | return; |
2186 | return; |
1155 | |
2187 | |
1156 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2188 | ev_io_stop (EV_A_ &w->io); |
|
|
2189 | |
1157 | ev_stop ((W)w); |
2190 | ev_stop (EV_A_ (W)w); |
1158 | } |
2191 | } |
|
|
2192 | #endif |
|
|
2193 | |
|
|
2194 | #if EV_FORK_ENABLE |
|
|
2195 | void |
|
|
2196 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2197 | { |
|
|
2198 | if (expect_false (ev_is_active (w))) |
|
|
2199 | return; |
|
|
2200 | |
|
|
2201 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2202 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2203 | forks [forkcnt - 1] = w; |
|
|
2204 | } |
|
|
2205 | |
|
|
2206 | void |
|
|
2207 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2208 | { |
|
|
2209 | clear_pending (EV_A_ (W)w); |
|
|
2210 | if (expect_false (!ev_is_active (w))) |
|
|
2211 | return; |
|
|
2212 | |
|
|
2213 | { |
|
|
2214 | int active = ((W)w)->active; |
|
|
2215 | forks [active - 1] = forks [--forkcnt]; |
|
|
2216 | ((W)forks [active - 1])->active = active; |
|
|
2217 | } |
|
|
2218 | |
|
|
2219 | ev_stop (EV_A_ (W)w); |
|
|
2220 | } |
|
|
2221 | #endif |
1159 | |
2222 | |
1160 | /*****************************************************************************/ |
2223 | /*****************************************************************************/ |
1161 | |
2224 | |
1162 | struct ev_once |
2225 | struct ev_once |
1163 | { |
2226 | { |
1164 | struct ev_io io; |
2227 | ev_io io; |
1165 | struct ev_timer to; |
2228 | ev_timer to; |
1166 | void (*cb)(int revents, void *arg); |
2229 | void (*cb)(int revents, void *arg); |
1167 | void *arg; |
2230 | void *arg; |
1168 | }; |
2231 | }; |
1169 | |
2232 | |
1170 | static void |
2233 | static void |
1171 | once_cb (struct ev_once *once, int revents) |
2234 | once_cb (EV_P_ struct ev_once *once, int revents) |
1172 | { |
2235 | { |
1173 | void (*cb)(int revents, void *arg) = once->cb; |
2236 | void (*cb)(int revents, void *arg) = once->cb; |
1174 | void *arg = once->arg; |
2237 | void *arg = once->arg; |
1175 | |
2238 | |
1176 | ev_io_stop (&once->io); |
2239 | ev_io_stop (EV_A_ &once->io); |
1177 | ev_timer_stop (&once->to); |
2240 | ev_timer_stop (EV_A_ &once->to); |
1178 | free (once); |
2241 | ev_free (once); |
1179 | |
2242 | |
1180 | cb (revents, arg); |
2243 | cb (revents, arg); |
1181 | } |
2244 | } |
1182 | |
2245 | |
1183 | static void |
2246 | static void |
1184 | once_cb_io (struct ev_io *w, int revents) |
2247 | once_cb_io (EV_P_ ev_io *w, int revents) |
1185 | { |
2248 | { |
1186 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2249 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1187 | } |
2250 | } |
1188 | |
2251 | |
1189 | static void |
2252 | static void |
1190 | once_cb_to (struct ev_timer *w, int revents) |
2253 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1191 | { |
2254 | { |
1192 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2255 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1193 | } |
2256 | } |
1194 | |
2257 | |
1195 | void |
2258 | void |
1196 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2259 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1197 | { |
2260 | { |
1198 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2261 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1199 | |
2262 | |
1200 | if (!once) |
2263 | if (expect_false (!once)) |
|
|
2264 | { |
1201 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2265 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1202 | else |
2266 | return; |
1203 | { |
2267 | } |
|
|
2268 | |
1204 | once->cb = cb; |
2269 | once->cb = cb; |
1205 | once->arg = arg; |
2270 | once->arg = arg; |
1206 | |
2271 | |
1207 | ev_watcher_init (&once->io, once_cb_io); |
2272 | ev_init (&once->io, once_cb_io); |
1208 | if (fd >= 0) |
2273 | if (fd >= 0) |
1209 | { |
2274 | { |
1210 | ev_io_set (&once->io, fd, events); |
2275 | ev_io_set (&once->io, fd, events); |
1211 | ev_io_start (&once->io); |
2276 | ev_io_start (EV_A_ &once->io); |
1212 | } |
2277 | } |
1213 | |
2278 | |
1214 | ev_watcher_init (&once->to, once_cb_to); |
2279 | ev_init (&once->to, once_cb_to); |
1215 | if (timeout >= 0.) |
2280 | if (timeout >= 0.) |
1216 | { |
2281 | { |
1217 | ev_timer_set (&once->to, timeout, 0.); |
2282 | ev_timer_set (&once->to, timeout, 0.); |
1218 | ev_timer_start (&once->to); |
2283 | ev_timer_start (EV_A_ &once->to); |
1219 | } |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /*****************************************************************************/ |
|
|
1224 | |
|
|
1225 | #if 0 |
|
|
1226 | |
|
|
1227 | struct ev_io wio; |
|
|
1228 | |
|
|
1229 | static void |
|
|
1230 | sin_cb (struct ev_io *w, int revents) |
|
|
1231 | { |
|
|
1232 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1233 | } |
|
|
1234 | |
|
|
1235 | static void |
|
|
1236 | ocb (struct ev_timer *w, int revents) |
|
|
1237 | { |
|
|
1238 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1239 | ev_timer_stop (w); |
|
|
1240 | ev_timer_start (w); |
|
|
1241 | } |
|
|
1242 | |
|
|
1243 | static void |
|
|
1244 | scb (struct ev_signal *w, int revents) |
|
|
1245 | { |
|
|
1246 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1247 | ev_io_stop (&wio); |
|
|
1248 | ev_io_start (&wio); |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | static void |
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1252 | gcb (struct ev_signal *w, int revents) |
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1253 | { |
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1254 | fprintf (stderr, "generic %x\n", revents); |
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1255 | |
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1256 | } |
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1257 | |
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1258 | int main (void) |
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1259 | { |
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1260 | ev_init (0); |
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1261 | |
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1262 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
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1263 | ev_io_start (&wio); |
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1264 | |
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1265 | struct ev_timer t[10000]; |
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1266 | |
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1267 | #if 0 |
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1268 | int i; |
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1269 | for (i = 0; i < 10000; ++i) |
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1270 | { |
2284 | } |
1271 | struct ev_timer *w = t + i; |
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1272 | ev_watcher_init (w, ocb, i); |
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1273 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
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1274 | ev_timer_start (w); |
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1275 | if (drand48 () < 0.5) |
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1276 | ev_timer_stop (w); |
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1277 | } |
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1278 | #endif |
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1279 | |
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1280 | struct ev_timer t1; |
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1281 | ev_timer_init (&t1, ocb, 5, 10); |
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1282 | ev_timer_start (&t1); |
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1283 | |
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1284 | struct ev_signal sig; |
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1285 | ev_signal_init (&sig, scb, SIGQUIT); |
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1286 | ev_signal_start (&sig); |
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1287 | |
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1288 | struct ev_check cw; |
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1289 | ev_check_init (&cw, gcb); |
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1290 | ev_check_start (&cw); |
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1291 | |
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1292 | struct ev_idle iw; |
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1293 | ev_idle_init (&iw, gcb); |
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1294 | ev_idle_start (&iw); |
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1295 | |
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1296 | ev_loop (0); |
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1297 | |
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1298 | return 0; |
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1299 | } |
2285 | } |
1300 | |
2286 | |
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2287 | #ifdef __cplusplus |
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2288 | } |
1301 | #endif |
2289 | #endif |
1302 | |
2290 | |
1303 | |
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1304 | |
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1305 | |
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