… | |
… | |
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 | #if EV_USE_CONFIG_H |
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
37 | # include "config.h" |
|
|
38 | |
|
|
39 | # if HAVE_CLOCK_GETTIME |
|
|
40 | # ifndef EV_USE_MONOTONIC |
|
|
41 | # define EV_USE_MONOTONIC 1 |
|
|
42 | # endif |
|
|
43 | # ifndef EV_USE_REALTIME |
|
|
44 | # define EV_USE_REALTIME 1 |
|
|
45 | # endif |
|
|
46 | # endif |
|
|
47 | |
|
|
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
|
|
49 | # define EV_USE_SELECT 1 |
|
|
50 | # endif |
|
|
51 | |
|
|
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
|
|
53 | # define EV_USE_POLL 1 |
|
|
54 | # endif |
|
|
55 | |
|
|
56 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
|
|
57 | # define EV_USE_EPOLL 1 |
|
|
58 | # endif |
|
|
59 | |
|
|
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
|
|
61 | # define EV_USE_KQUEUE 1 |
|
|
62 | # endif |
|
|
63 | |
|
|
64 | # if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) |
|
|
65 | # define EV_USE_PORT 1 |
|
|
66 | # endif |
|
|
67 | |
33 | #endif |
68 | #endif |
34 | |
69 | |
35 | #include <math.h> |
70 | #include <math.h> |
36 | #include <stdlib.h> |
71 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
72 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
73 | #include <stddef.h> |
41 | |
74 | |
42 | #include <stdio.h> |
75 | #include <stdio.h> |
43 | |
76 | |
44 | #include <assert.h> |
77 | #include <assert.h> |
45 | #include <errno.h> |
78 | #include <errno.h> |
46 | #include <sys/types.h> |
79 | #include <sys/types.h> |
|
|
80 | #include <time.h> |
|
|
81 | |
|
|
82 | #include <signal.h> |
|
|
83 | |
47 | #ifndef WIN32 |
84 | #ifndef _WIN32 |
|
|
85 | # include <unistd.h> |
|
|
86 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
87 | # include <sys/wait.h> |
|
|
88 | #else |
|
|
89 | # define WIN32_LEAN_AND_MEAN |
|
|
90 | # include <windows.h> |
|
|
91 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
92 | # define EV_SELECT_IS_WINSOCKET 1 |
49 | #endif |
93 | # endif |
50 | #include <sys/time.h> |
94 | #endif |
51 | #include <time.h> |
|
|
52 | |
95 | |
53 | /**/ |
96 | /**/ |
54 | |
97 | |
55 | #ifndef EV_USE_MONOTONIC |
98 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
99 | # define EV_USE_MONOTONIC 1 |
57 | #endif |
100 | #endif |
58 | |
101 | |
|
|
102 | #ifndef EV_USE_REALTIME |
|
|
103 | # define EV_USE_REALTIME 1 |
|
|
104 | #endif |
|
|
105 | |
59 | #ifndef EV_USE_SELECT |
106 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
107 | # define EV_USE_SELECT 1 |
|
|
108 | # define EV_SELECT_USE_FD_SET 1 |
61 | #endif |
109 | #endif |
62 | |
110 | |
63 | #ifndef EV_USE_POLL |
111 | #ifndef EV_USE_POLL |
64 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
112 | # ifdef _WIN32 |
|
|
113 | # define EV_USE_POLL 0 |
|
|
114 | # else |
|
|
115 | # define EV_USE_POLL 1 |
|
|
116 | # endif |
65 | #endif |
117 | #endif |
66 | |
118 | |
67 | #ifndef EV_USE_EPOLL |
119 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
120 | # define EV_USE_EPOLL 0 |
69 | #endif |
121 | #endif |
70 | |
122 | |
71 | #ifndef EV_USE_KQUEUE |
123 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
124 | # define EV_USE_KQUEUE 0 |
73 | #endif |
125 | #endif |
74 | |
126 | |
75 | #ifndef EV_USE_REALTIME |
127 | #ifndef EV_USE_PORT |
76 | # define EV_USE_REALTIME 1 |
128 | # define EV_USE_PORT 0 |
77 | #endif |
129 | #endif |
78 | |
130 | |
79 | /**/ |
131 | /**/ |
|
|
132 | |
|
|
133 | /* darwin simply cannot be helped */ |
|
|
134 | #ifdef __APPLE__ |
|
|
135 | # undef EV_USE_POLL |
|
|
136 | # undef EV_USE_KQUEUE |
|
|
137 | #endif |
80 | |
138 | |
81 | #ifndef CLOCK_MONOTONIC |
139 | #ifndef CLOCK_MONOTONIC |
82 | # undef EV_USE_MONOTONIC |
140 | # undef EV_USE_MONOTONIC |
83 | # define EV_USE_MONOTONIC 0 |
141 | # define EV_USE_MONOTONIC 0 |
84 | #endif |
142 | #endif |
85 | |
143 | |
86 | #ifndef CLOCK_REALTIME |
144 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
145 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
146 | # define EV_USE_REALTIME 0 |
|
|
147 | #endif |
|
|
148 | |
|
|
149 | #if EV_SELECT_IS_WINSOCKET |
|
|
150 | # include <winsock.h> |
89 | #endif |
151 | #endif |
90 | |
152 | |
91 | /**/ |
153 | /**/ |
92 | |
154 | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
155 | #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) */ |
156 | #define MAX_BLOCKTIME 59.731 /* 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 */ |
157 | #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 */ |
158 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
97 | |
159 | |
|
|
160 | #ifdef EV_H |
|
|
161 | # include EV_H |
|
|
162 | #else |
98 | #include "ev.h" |
163 | # include "ev.h" |
|
|
164 | #endif |
99 | |
165 | |
100 | #if __GNUC__ >= 3 |
166 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
167 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
102 | # define inline inline |
168 | # define inline inline |
103 | #else |
169 | #else |
… | |
… | |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
175 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
176 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
177 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
178 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
113 | |
179 | |
|
|
180 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
181 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
182 | |
114 | typedef struct ev_watcher *W; |
183 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
184 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
185 | typedef struct ev_watcher_time *WT; |
117 | |
186 | |
118 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
187 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
188 | |
|
|
189 | #ifdef _WIN32 |
|
|
190 | # include "ev_win32.c" |
|
|
191 | #endif |
|
|
192 | |
|
|
193 | /*****************************************************************************/ |
|
|
194 | |
|
|
195 | static void (*syserr_cb)(const char *msg); |
|
|
196 | |
|
|
197 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
198 | { |
|
|
199 | syserr_cb = cb; |
|
|
200 | } |
|
|
201 | |
|
|
202 | static void |
|
|
203 | syserr (const char *msg) |
|
|
204 | { |
|
|
205 | if (!msg) |
|
|
206 | msg = "(libev) system error"; |
|
|
207 | |
|
|
208 | if (syserr_cb) |
|
|
209 | syserr_cb (msg); |
|
|
210 | else |
|
|
211 | { |
|
|
212 | perror (msg); |
|
|
213 | abort (); |
|
|
214 | } |
|
|
215 | } |
|
|
216 | |
|
|
217 | static void *(*alloc)(void *ptr, long size); |
|
|
218 | |
|
|
219 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
220 | { |
|
|
221 | alloc = cb; |
|
|
222 | } |
|
|
223 | |
|
|
224 | static void * |
|
|
225 | ev_realloc (void *ptr, long size) |
|
|
226 | { |
|
|
227 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
228 | |
|
|
229 | if (!ptr && size) |
|
|
230 | { |
|
|
231 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
232 | abort (); |
|
|
233 | } |
|
|
234 | |
|
|
235 | return ptr; |
|
|
236 | } |
|
|
237 | |
|
|
238 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
239 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
240 | |
|
|
241 | /*****************************************************************************/ |
|
|
242 | |
|
|
243 | typedef struct |
|
|
244 | { |
|
|
245 | WL head; |
|
|
246 | unsigned char events; |
|
|
247 | unsigned char reify; |
|
|
248 | #if EV_SELECT_IS_WINSOCKET |
|
|
249 | SOCKET handle; |
|
|
250 | #endif |
|
|
251 | } ANFD; |
|
|
252 | |
|
|
253 | typedef struct |
|
|
254 | { |
|
|
255 | W w; |
|
|
256 | int events; |
|
|
257 | } ANPENDING; |
|
|
258 | |
|
|
259 | #if EV_MULTIPLICITY |
|
|
260 | |
|
|
261 | struct ev_loop |
|
|
262 | { |
|
|
263 | ev_tstamp ev_rt_now; |
|
|
264 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
265 | #define VAR(name,decl) decl; |
|
|
266 | #include "ev_vars.h" |
|
|
267 | #undef VAR |
|
|
268 | }; |
|
|
269 | #include "ev_wrap.h" |
|
|
270 | |
|
|
271 | static struct ev_loop default_loop_struct; |
|
|
272 | struct ev_loop *ev_default_loop_ptr; |
|
|
273 | |
|
|
274 | #else |
|
|
275 | |
119 | ev_tstamp ev_now; |
276 | ev_tstamp ev_rt_now; |
120 | int ev_method; |
277 | #define VAR(name,decl) static decl; |
|
|
278 | #include "ev_vars.h" |
|
|
279 | #undef VAR |
121 | |
280 | |
122 | static int have_monotonic; /* runtime */ |
281 | static int ev_default_loop_ptr; |
123 | |
282 | |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
283 | #endif |
125 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
126 | static void (*method_poll)(ev_tstamp timeout); |
|
|
127 | |
284 | |
128 | /*****************************************************************************/ |
285 | /*****************************************************************************/ |
129 | |
286 | |
130 | ev_tstamp |
287 | ev_tstamp |
131 | ev_time (void) |
288 | ev_time (void) |
… | |
… | |
139 | gettimeofday (&tv, 0); |
296 | gettimeofday (&tv, 0); |
140 | return tv.tv_sec + tv.tv_usec * 1e-6; |
297 | return tv.tv_sec + tv.tv_usec * 1e-6; |
141 | #endif |
298 | #endif |
142 | } |
299 | } |
143 | |
300 | |
144 | static ev_tstamp |
301 | inline ev_tstamp |
145 | get_clock (void) |
302 | get_clock (void) |
146 | { |
303 | { |
147 | #if EV_USE_MONOTONIC |
304 | #if EV_USE_MONOTONIC |
148 | if (expect_true (have_monotonic)) |
305 | if (expect_true (have_monotonic)) |
149 | { |
306 | { |
… | |
… | |
154 | #endif |
311 | #endif |
155 | |
312 | |
156 | return ev_time (); |
313 | return ev_time (); |
157 | } |
314 | } |
158 | |
315 | |
|
|
316 | #if EV_MULTIPLICITY |
|
|
317 | ev_tstamp |
|
|
318 | ev_now (EV_P) |
|
|
319 | { |
|
|
320 | return ev_rt_now; |
|
|
321 | } |
|
|
322 | #endif |
|
|
323 | |
159 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
324 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
160 | |
325 | |
161 | #define array_needsize(base,cur,cnt,init) \ |
326 | #define array_needsize(type,base,cur,cnt,init) \ |
162 | if (expect_false ((cnt) > cur)) \ |
327 | if (expect_false ((cnt) > cur)) \ |
163 | { \ |
328 | { \ |
164 | int newcnt = cur; \ |
329 | int newcnt = cur; \ |
165 | do \ |
330 | do \ |
166 | { \ |
331 | { \ |
167 | newcnt = array_roundsize (base, newcnt << 1); \ |
332 | newcnt = array_roundsize (type, newcnt << 1); \ |
168 | } \ |
333 | } \ |
169 | while ((cnt) > newcnt); \ |
334 | while ((cnt) > newcnt); \ |
170 | \ |
335 | \ |
171 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
336 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
172 | init (base + cur, newcnt - cur); \ |
337 | init (base + cur, newcnt - cur); \ |
173 | cur = newcnt; \ |
338 | cur = newcnt; \ |
174 | } |
339 | } |
|
|
340 | |
|
|
341 | #define array_slim(type,stem) \ |
|
|
342 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
343 | { \ |
|
|
344 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
345 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
346 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
347 | } |
|
|
348 | |
|
|
349 | #define array_free(stem, idx) \ |
|
|
350 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
175 | |
351 | |
176 | /*****************************************************************************/ |
352 | /*****************************************************************************/ |
177 | |
|
|
178 | typedef struct |
|
|
179 | { |
|
|
180 | struct ev_io *head; |
|
|
181 | unsigned char events; |
|
|
182 | unsigned char reify; |
|
|
183 | } ANFD; |
|
|
184 | |
|
|
185 | static ANFD *anfds; |
|
|
186 | static int anfdmax; |
|
|
187 | |
353 | |
188 | static void |
354 | static void |
189 | anfds_init (ANFD *base, int count) |
355 | anfds_init (ANFD *base, int count) |
190 | { |
356 | { |
191 | while (count--) |
357 | while (count--) |
… | |
… | |
196 | |
362 | |
197 | ++base; |
363 | ++base; |
198 | } |
364 | } |
199 | } |
365 | } |
200 | |
366 | |
201 | typedef struct |
367 | void |
|
|
368 | ev_feed_event (EV_P_ void *w, int revents) |
202 | { |
369 | { |
203 | W w; |
370 | W w_ = (W)w; |
204 | int events; |
|
|
205 | } ANPENDING; |
|
|
206 | |
371 | |
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) |
372 | if (w_->pending) |
214 | { |
373 | { |
215 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
374 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
216 | return; |
375 | return; |
217 | } |
376 | } |
218 | |
377 | |
219 | w->pending = ++pendingcnt [ABSPRI (w)]; |
378 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
220 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
379 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
221 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
380 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
222 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
381 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
223 | } |
382 | } |
224 | |
383 | |
225 | static void |
384 | static void |
226 | queue_events (W *events, int eventcnt, int type) |
385 | queue_events (EV_P_ W *events, int eventcnt, int type) |
227 | { |
386 | { |
228 | int i; |
387 | int i; |
229 | |
388 | |
230 | for (i = 0; i < eventcnt; ++i) |
389 | for (i = 0; i < eventcnt; ++i) |
231 | event (events [i], type); |
390 | ev_feed_event (EV_A_ events [i], type); |
232 | } |
391 | } |
233 | |
392 | |
234 | static void |
393 | inline void |
235 | fd_event (int fd, int events) |
394 | fd_event (EV_P_ int fd, int revents) |
236 | { |
395 | { |
237 | ANFD *anfd = anfds + fd; |
396 | ANFD *anfd = anfds + fd; |
238 | struct ev_io *w; |
397 | struct ev_io *w; |
239 | |
398 | |
240 | for (w = anfd->head; w; w = w->next) |
399 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
241 | { |
400 | { |
242 | int ev = w->events & events; |
401 | int ev = w->events & revents; |
243 | |
402 | |
244 | if (ev) |
403 | if (ev) |
245 | event ((W)w, ev); |
404 | ev_feed_event (EV_A_ (W)w, ev); |
246 | } |
405 | } |
|
|
406 | } |
|
|
407 | |
|
|
408 | void |
|
|
409 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
410 | { |
|
|
411 | fd_event (EV_A_ fd, revents); |
247 | } |
412 | } |
248 | |
413 | |
249 | /*****************************************************************************/ |
414 | /*****************************************************************************/ |
250 | |
415 | |
251 | static int *fdchanges; |
|
|
252 | static int fdchangemax, fdchangecnt; |
|
|
253 | |
|
|
254 | static void |
416 | static void |
255 | fd_reify (void) |
417 | fd_reify (EV_P) |
256 | { |
418 | { |
257 | int i; |
419 | int i; |
258 | |
420 | |
259 | for (i = 0; i < fdchangecnt; ++i) |
421 | for (i = 0; i < fdchangecnt; ++i) |
260 | { |
422 | { |
… | |
… | |
262 | ANFD *anfd = anfds + fd; |
424 | ANFD *anfd = anfds + fd; |
263 | struct ev_io *w; |
425 | struct ev_io *w; |
264 | |
426 | |
265 | int events = 0; |
427 | int events = 0; |
266 | |
428 | |
267 | for (w = anfd->head; w; w = w->next) |
429 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
268 | events |= w->events; |
430 | events |= w->events; |
269 | |
431 | |
|
|
432 | #if EV_SELECT_IS_WINSOCKET |
|
|
433 | if (events) |
|
|
434 | { |
|
|
435 | unsigned long argp; |
|
|
436 | anfd->handle = _get_osfhandle (fd); |
|
|
437 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
438 | } |
|
|
439 | #endif |
|
|
440 | |
270 | anfd->reify = 0; |
441 | anfd->reify = 0; |
271 | |
442 | |
272 | if (anfd->events != events) |
|
|
273 | { |
|
|
274 | method_modify (fd, anfd->events, events); |
443 | method_modify (EV_A_ fd, anfd->events, events); |
275 | anfd->events = events; |
444 | anfd->events = events; |
276 | } |
|
|
277 | } |
445 | } |
278 | |
446 | |
279 | fdchangecnt = 0; |
447 | fdchangecnt = 0; |
280 | } |
448 | } |
281 | |
449 | |
282 | static void |
450 | static void |
283 | fd_change (int fd) |
451 | fd_change (EV_P_ int fd) |
284 | { |
452 | { |
285 | if (anfds [fd].reify || fdchangecnt < 0) |
453 | if (anfds [fd].reify) |
286 | return; |
454 | return; |
287 | |
455 | |
288 | anfds [fd].reify = 1; |
456 | anfds [fd].reify = 1; |
289 | |
457 | |
290 | ++fdchangecnt; |
458 | ++fdchangecnt; |
291 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
459 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
292 | fdchanges [fdchangecnt - 1] = fd; |
460 | fdchanges [fdchangecnt - 1] = fd; |
293 | } |
461 | } |
294 | |
462 | |
295 | static void |
463 | static void |
296 | fd_kill (int fd) |
464 | fd_kill (EV_P_ int fd) |
297 | { |
465 | { |
298 | struct ev_io *w; |
466 | struct ev_io *w; |
299 | |
467 | |
300 | printf ("killing fd %d\n", fd);//D |
|
|
301 | while ((w = anfds [fd].head)) |
468 | while ((w = (struct ev_io *)anfds [fd].head)) |
302 | { |
469 | { |
303 | ev_io_stop (w); |
470 | ev_io_stop (EV_A_ w); |
304 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
471 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
305 | } |
472 | } |
|
|
473 | } |
|
|
474 | |
|
|
475 | static int |
|
|
476 | fd_valid (int fd) |
|
|
477 | { |
|
|
478 | #ifdef _WIN32 |
|
|
479 | return _get_osfhandle (fd) != -1; |
|
|
480 | #else |
|
|
481 | return fcntl (fd, F_GETFD) != -1; |
|
|
482 | #endif |
306 | } |
483 | } |
307 | |
484 | |
308 | /* called on EBADF to verify fds */ |
485 | /* called on EBADF to verify fds */ |
309 | static void |
486 | static void |
310 | fd_ebadf (void) |
487 | fd_ebadf (EV_P) |
311 | { |
488 | { |
312 | int fd; |
489 | int fd; |
313 | |
490 | |
314 | for (fd = 0; fd < anfdmax; ++fd) |
491 | for (fd = 0; fd < anfdmax; ++fd) |
315 | if (anfds [fd].events) |
492 | if (anfds [fd].events) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
493 | if (!fd_valid (fd) == -1 && errno == EBADF) |
317 | fd_kill (fd); |
494 | fd_kill (EV_A_ fd); |
318 | } |
495 | } |
319 | |
496 | |
320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
497 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
321 | static void |
498 | static void |
322 | fd_enomem (void) |
499 | fd_enomem (EV_P) |
323 | { |
500 | { |
324 | int fd = anfdmax; |
501 | int fd; |
325 | |
502 | |
326 | while (fd--) |
503 | for (fd = anfdmax; fd--; ) |
327 | if (anfds [fd].events) |
504 | if (anfds [fd].events) |
328 | { |
505 | { |
329 | close (fd); |
|
|
330 | fd_kill (fd); |
506 | fd_kill (EV_A_ fd); |
331 | return; |
507 | return; |
332 | } |
508 | } |
333 | } |
509 | } |
334 | |
510 | |
|
|
511 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
512 | static void |
|
|
513 | fd_rearm_all (EV_P) |
|
|
514 | { |
|
|
515 | int fd; |
|
|
516 | |
|
|
517 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
518 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
519 | if (anfds [fd].events) |
|
|
520 | { |
|
|
521 | anfds [fd].events = 0; |
|
|
522 | fd_change (EV_A_ fd); |
|
|
523 | } |
|
|
524 | } |
|
|
525 | |
335 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
336 | |
527 | |
337 | static struct ev_timer **timers; |
|
|
338 | static int timermax, timercnt; |
|
|
339 | |
|
|
340 | static struct ev_periodic **periodics; |
|
|
341 | static int periodicmax, periodiccnt; |
|
|
342 | |
|
|
343 | static void |
528 | static void |
344 | upheap (WT *timers, int k) |
529 | upheap (WT *heap, int k) |
345 | { |
530 | { |
346 | WT w = timers [k]; |
531 | WT w = heap [k]; |
347 | |
532 | |
348 | while (k && timers [k >> 1]->at > w->at) |
533 | while (k && heap [k >> 1]->at > w->at) |
349 | { |
534 | { |
350 | timers [k] = timers [k >> 1]; |
535 | heap [k] = heap [k >> 1]; |
351 | timers [k]->active = k + 1; |
536 | ((W)heap [k])->active = k + 1; |
352 | k >>= 1; |
537 | k >>= 1; |
353 | } |
538 | } |
354 | |
539 | |
355 | timers [k] = w; |
540 | heap [k] = w; |
356 | timers [k]->active = k + 1; |
541 | ((W)heap [k])->active = k + 1; |
357 | |
542 | |
358 | } |
543 | } |
359 | |
544 | |
360 | static void |
545 | static void |
361 | downheap (WT *timers, int N, int k) |
546 | downheap (WT *heap, int N, int k) |
362 | { |
547 | { |
363 | WT w = timers [k]; |
548 | WT w = heap [k]; |
364 | |
549 | |
365 | while (k < (N >> 1)) |
550 | while (k < (N >> 1)) |
366 | { |
551 | { |
367 | int j = k << 1; |
552 | int j = k << 1; |
368 | |
553 | |
369 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
554 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
370 | ++j; |
555 | ++j; |
371 | |
556 | |
372 | if (w->at <= timers [j]->at) |
557 | if (w->at <= heap [j]->at) |
373 | break; |
558 | break; |
374 | |
559 | |
375 | timers [k] = timers [j]; |
560 | heap [k] = heap [j]; |
376 | timers [k]->active = k + 1; |
561 | ((W)heap [k])->active = k + 1; |
377 | k = j; |
562 | k = j; |
378 | } |
563 | } |
379 | |
564 | |
380 | timers [k] = w; |
565 | heap [k] = w; |
381 | timers [k]->active = k + 1; |
566 | ((W)heap [k])->active = k + 1; |
|
|
567 | } |
|
|
568 | |
|
|
569 | inline void |
|
|
570 | adjustheap (WT *heap, int N, int k) |
|
|
571 | { |
|
|
572 | upheap (heap, k); |
|
|
573 | downheap (heap, N, k); |
382 | } |
574 | } |
383 | |
575 | |
384 | /*****************************************************************************/ |
576 | /*****************************************************************************/ |
385 | |
577 | |
386 | typedef struct |
578 | typedef struct |
387 | { |
579 | { |
388 | struct ev_signal *head; |
580 | WL head; |
389 | sig_atomic_t volatile gotsig; |
581 | sig_atomic_t volatile gotsig; |
390 | } ANSIG; |
582 | } ANSIG; |
391 | |
583 | |
392 | static ANSIG *signals; |
584 | static ANSIG *signals; |
393 | static int signalmax; |
585 | static int signalmax; |
… | |
… | |
409 | } |
601 | } |
410 | |
602 | |
411 | static void |
603 | static void |
412 | sighandler (int signum) |
604 | sighandler (int signum) |
413 | { |
605 | { |
|
|
606 | #if _WIN32 |
|
|
607 | signal (signum, sighandler); |
|
|
608 | #endif |
|
|
609 | |
414 | signals [signum - 1].gotsig = 1; |
610 | signals [signum - 1].gotsig = 1; |
415 | |
611 | |
416 | if (!gotsig) |
612 | if (!gotsig) |
417 | { |
613 | { |
|
|
614 | int old_errno = errno; |
418 | gotsig = 1; |
615 | gotsig = 1; |
419 | write (sigpipe [1], &signum, 1); |
616 | write (sigpipe [1], &signum, 1); |
|
|
617 | errno = old_errno; |
420 | } |
618 | } |
421 | } |
619 | } |
422 | |
620 | |
|
|
621 | void |
|
|
622 | ev_feed_signal_event (EV_P_ int signum) |
|
|
623 | { |
|
|
624 | WL w; |
|
|
625 | |
|
|
626 | #if EV_MULTIPLICITY |
|
|
627 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
628 | #endif |
|
|
629 | |
|
|
630 | --signum; |
|
|
631 | |
|
|
632 | if (signum < 0 || signum >= signalmax) |
|
|
633 | return; |
|
|
634 | |
|
|
635 | signals [signum].gotsig = 0; |
|
|
636 | |
|
|
637 | for (w = signals [signum].head; w; w = w->next) |
|
|
638 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
639 | } |
|
|
640 | |
423 | static void |
641 | static void |
424 | sigcb (struct ev_io *iow, int revents) |
642 | sigcb (EV_P_ struct ev_io *iow, int revents) |
425 | { |
643 | { |
426 | struct ev_signal *w; |
|
|
427 | int signum; |
644 | int signum; |
428 | |
645 | |
429 | read (sigpipe [0], &revents, 1); |
646 | read (sigpipe [0], &revents, 1); |
430 | gotsig = 0; |
647 | gotsig = 0; |
431 | |
648 | |
432 | for (signum = signalmax; signum--; ) |
649 | for (signum = signalmax; signum--; ) |
433 | if (signals [signum].gotsig) |
650 | if (signals [signum].gotsig) |
434 | { |
651 | ev_feed_signal_event (EV_A_ signum + 1); |
435 | signals [signum].gotsig = 0; |
|
|
436 | |
|
|
437 | for (w = signals [signum].head; w; w = w->next) |
|
|
438 | event ((W)w, EV_SIGNAL); |
|
|
439 | } |
|
|
440 | } |
652 | } |
441 | |
653 | |
442 | static void |
654 | inline void |
443 | siginit (void) |
655 | fd_intern (int fd) |
444 | { |
656 | { |
445 | #ifndef WIN32 |
657 | #ifdef _WIN32 |
|
|
658 | int arg = 1; |
|
|
659 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
660 | #else |
446 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
661 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
447 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
448 | |
|
|
449 | /* rather than sort out wether we really need nb, set it */ |
|
|
450 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
662 | fcntl (fd, F_SETFL, O_NONBLOCK); |
451 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
452 | #endif |
663 | #endif |
|
|
664 | } |
|
|
665 | |
|
|
666 | static void |
|
|
667 | siginit (EV_P) |
|
|
668 | { |
|
|
669 | fd_intern (sigpipe [0]); |
|
|
670 | fd_intern (sigpipe [1]); |
453 | |
671 | |
454 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
672 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
455 | ev_io_start (&sigev); |
673 | ev_io_start (EV_A_ &sigev); |
|
|
674 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
456 | } |
675 | } |
457 | |
676 | |
458 | /*****************************************************************************/ |
677 | /*****************************************************************************/ |
459 | |
678 | |
460 | static struct ev_idle **idles; |
|
|
461 | static int idlemax, idlecnt; |
|
|
462 | |
|
|
463 | static struct ev_prepare **prepares; |
|
|
464 | static int preparemax, preparecnt; |
|
|
465 | |
|
|
466 | static struct ev_check **checks; |
|
|
467 | static int checkmax, checkcnt; |
|
|
468 | |
|
|
469 | /*****************************************************************************/ |
|
|
470 | |
|
|
471 | static struct ev_child *childs [PID_HASHSIZE]; |
679 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
680 | |
|
|
681 | #ifndef _WIN32 |
|
|
682 | |
472 | static struct ev_signal childev; |
683 | static struct ev_signal childev; |
473 | |
|
|
474 | #ifndef WIN32 |
|
|
475 | |
684 | |
476 | #ifndef WCONTINUED |
685 | #ifndef WCONTINUED |
477 | # define WCONTINUED 0 |
686 | # define WCONTINUED 0 |
478 | #endif |
687 | #endif |
479 | |
688 | |
480 | static void |
689 | static void |
481 | child_reap (struct ev_signal *sw, int chain, int pid, int status) |
690 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
482 | { |
691 | { |
483 | struct ev_child *w; |
692 | struct ev_child *w; |
484 | |
693 | |
485 | for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next) |
694 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
486 | if (w->pid == pid || !w->pid) |
695 | if (w->pid == pid || !w->pid) |
487 | { |
696 | { |
488 | w->priority = sw->priority; /* need to do it *now* */ |
697 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
489 | w->rpid = pid; |
698 | w->rpid = pid; |
490 | w->rstatus = status; |
699 | w->rstatus = status; |
491 | printf ("rpid %p %d %d\n", w, pid, w->pid);//D |
|
|
492 | event ((W)w, EV_CHILD); |
700 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
493 | } |
701 | } |
494 | } |
702 | } |
495 | |
703 | |
496 | static void |
704 | static void |
497 | childcb (struct ev_signal *sw, int revents) |
705 | childcb (EV_P_ struct ev_signal *sw, int revents) |
498 | { |
706 | { |
499 | int pid, status; |
707 | int pid, status; |
500 | |
708 | |
501 | printf ("chld %x\n", revents);//D |
|
|
502 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
709 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
503 | { |
710 | { |
504 | /* make sure we are called again until all childs have been reaped */ |
711 | /* make sure we are called again until all childs have been reaped */ |
505 | event ((W)sw, EV_SIGNAL); |
712 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
506 | |
713 | |
507 | child_reap (sw, pid, pid, status); |
714 | child_reap (EV_A_ sw, pid, pid, status); |
508 | child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
715 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
509 | } |
716 | } |
510 | } |
717 | } |
511 | |
718 | |
512 | #endif |
719 | #endif |
513 | |
720 | |
514 | /*****************************************************************************/ |
721 | /*****************************************************************************/ |
515 | |
722 | |
|
|
723 | #if EV_USE_PORT |
|
|
724 | # include "ev_port.c" |
|
|
725 | #endif |
516 | #if EV_USE_KQUEUE |
726 | #if EV_USE_KQUEUE |
517 | # include "ev_kqueue.c" |
727 | # include "ev_kqueue.c" |
518 | #endif |
728 | #endif |
519 | #if EV_USE_EPOLL |
729 | #if EV_USE_EPOLL |
520 | # include "ev_epoll.c" |
730 | # include "ev_epoll.c" |
… | |
… | |
536 | ev_version_minor (void) |
746 | ev_version_minor (void) |
537 | { |
747 | { |
538 | return EV_VERSION_MINOR; |
748 | return EV_VERSION_MINOR; |
539 | } |
749 | } |
540 | |
750 | |
541 | /* return true if we are running with elevated privileges and ignore env variables */ |
751 | /* return true if we are running with elevated privileges and should ignore env variables */ |
542 | static int |
752 | static int |
543 | enable_secure () |
753 | enable_secure (void) |
544 | { |
754 | { |
|
|
755 | #ifdef _WIN32 |
|
|
756 | return 0; |
|
|
757 | #else |
545 | return getuid () != geteuid () |
758 | return getuid () != geteuid () |
546 | || getgid () != getegid (); |
759 | || getgid () != getegid (); |
|
|
760 | #endif |
547 | } |
761 | } |
548 | |
762 | |
549 | int ev_init (int methods) |
763 | unsigned int |
|
|
764 | ev_method (EV_P) |
550 | { |
765 | { |
|
|
766 | return method; |
|
|
767 | } |
|
|
768 | |
|
|
769 | static void |
|
|
770 | loop_init (EV_P_ unsigned int flags) |
|
|
771 | { |
551 | if (!ev_method) |
772 | if (!method) |
552 | { |
773 | { |
553 | #if EV_USE_MONOTONIC |
774 | #if EV_USE_MONOTONIC |
554 | { |
775 | { |
555 | struct timespec ts; |
776 | struct timespec ts; |
556 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
777 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
557 | have_monotonic = 1; |
778 | have_monotonic = 1; |
558 | } |
779 | } |
559 | #endif |
780 | #endif |
560 | |
781 | |
561 | ev_now = ev_time (); |
782 | ev_rt_now = ev_time (); |
562 | now = get_clock (); |
783 | mn_now = get_clock (); |
563 | now_floor = now; |
784 | now_floor = mn_now; |
564 | diff = ev_now - now; |
785 | rtmn_diff = ev_rt_now - mn_now; |
565 | |
786 | |
566 | if (pipe (sigpipe)) |
787 | if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
567 | return 0; |
|
|
568 | |
|
|
569 | if (methods == EVMETHOD_AUTO) |
|
|
570 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
|
|
571 | methods = atoi (getenv ("LIBEV_METHODS")); |
788 | flags = atoi (getenv ("LIBEV_FLAGS")); |
572 | else |
|
|
573 | methods = EVMETHOD_ANY; |
|
|
574 | |
789 | |
|
|
790 | if (!(flags & 0x0000ffff)) |
|
|
791 | flags |= 0x0000ffff; |
|
|
792 | |
575 | ev_method = 0; |
793 | method = 0; |
|
|
794 | #if EV_USE_PORT |
|
|
795 | if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); |
|
|
796 | #endif |
576 | #if EV_USE_KQUEUE |
797 | #if EV_USE_KQUEUE |
577 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
798 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
578 | #endif |
799 | #endif |
579 | #if EV_USE_EPOLL |
800 | #if EV_USE_EPOLL |
580 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
801 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
581 | #endif |
802 | #endif |
582 | #if EV_USE_POLL |
803 | #if EV_USE_POLL |
583 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
804 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
584 | #endif |
805 | #endif |
585 | #if EV_USE_SELECT |
806 | #if EV_USE_SELECT |
586 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
807 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
587 | #endif |
808 | #endif |
588 | |
809 | |
|
|
810 | ev_init (&sigev, sigcb); |
|
|
811 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
812 | } |
|
|
813 | } |
|
|
814 | |
|
|
815 | void |
|
|
816 | loop_destroy (EV_P) |
|
|
817 | { |
|
|
818 | int i; |
|
|
819 | |
|
|
820 | #if EV_USE_PORT |
|
|
821 | if (method == EVMETHOD_PORT ) port_destroy (EV_A); |
|
|
822 | #endif |
|
|
823 | #if EV_USE_KQUEUE |
|
|
824 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
825 | #endif |
|
|
826 | #if EV_USE_EPOLL |
|
|
827 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
828 | #endif |
|
|
829 | #if EV_USE_POLL |
|
|
830 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
831 | #endif |
|
|
832 | #if EV_USE_SELECT |
|
|
833 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
834 | #endif |
|
|
835 | |
|
|
836 | for (i = NUMPRI; i--; ) |
|
|
837 | array_free (pending, [i]); |
|
|
838 | |
|
|
839 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
840 | array_free (fdchange, EMPTY0); |
|
|
841 | array_free (timer, EMPTY0); |
|
|
842 | #if EV_PERIODICS |
|
|
843 | array_free (periodic, EMPTY0); |
|
|
844 | #endif |
|
|
845 | array_free (idle, EMPTY0); |
|
|
846 | array_free (prepare, EMPTY0); |
|
|
847 | array_free (check, EMPTY0); |
|
|
848 | |
|
|
849 | method = 0; |
|
|
850 | } |
|
|
851 | |
|
|
852 | static void |
|
|
853 | loop_fork (EV_P) |
|
|
854 | { |
|
|
855 | #if EV_USE_PORT |
|
|
856 | if (method == EVMETHOD_PORT ) port_fork (EV_A); |
|
|
857 | #endif |
|
|
858 | #if EV_USE_KQUEUE |
|
|
859 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
860 | #endif |
|
|
861 | #if EV_USE_EPOLL |
|
|
862 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
863 | #endif |
|
|
864 | |
|
|
865 | if (ev_is_active (&sigev)) |
|
|
866 | { |
|
|
867 | /* default loop */ |
|
|
868 | |
|
|
869 | ev_ref (EV_A); |
|
|
870 | ev_io_stop (EV_A_ &sigev); |
|
|
871 | close (sigpipe [0]); |
|
|
872 | close (sigpipe [1]); |
|
|
873 | |
|
|
874 | while (pipe (sigpipe)) |
|
|
875 | syserr ("(libev) error creating pipe"); |
|
|
876 | |
|
|
877 | siginit (EV_A); |
|
|
878 | } |
|
|
879 | |
|
|
880 | postfork = 0; |
|
|
881 | } |
|
|
882 | |
|
|
883 | #if EV_MULTIPLICITY |
|
|
884 | struct ev_loop * |
|
|
885 | ev_loop_new (unsigned int flags) |
|
|
886 | { |
|
|
887 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
888 | |
|
|
889 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
890 | |
|
|
891 | loop_init (EV_A_ flags); |
|
|
892 | |
|
|
893 | if (ev_method (EV_A)) |
|
|
894 | return loop; |
|
|
895 | |
|
|
896 | return 0; |
|
|
897 | } |
|
|
898 | |
|
|
899 | void |
|
|
900 | ev_loop_destroy (EV_P) |
|
|
901 | { |
|
|
902 | loop_destroy (EV_A); |
|
|
903 | ev_free (loop); |
|
|
904 | } |
|
|
905 | |
|
|
906 | void |
|
|
907 | ev_loop_fork (EV_P) |
|
|
908 | { |
|
|
909 | postfork = 1; |
|
|
910 | } |
|
|
911 | |
|
|
912 | #endif |
|
|
913 | |
|
|
914 | #if EV_MULTIPLICITY |
|
|
915 | struct ev_loop * |
|
|
916 | ev_default_loop_ (unsigned int flags) |
|
|
917 | #else |
|
|
918 | int |
|
|
919 | ev_default_loop (unsigned int flags) |
|
|
920 | #endif |
|
|
921 | { |
|
|
922 | if (sigpipe [0] == sigpipe [1]) |
|
|
923 | if (pipe (sigpipe)) |
|
|
924 | return 0; |
|
|
925 | |
|
|
926 | if (!ev_default_loop_ptr) |
|
|
927 | { |
|
|
928 | #if EV_MULTIPLICITY |
|
|
929 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
930 | #else |
|
|
931 | ev_default_loop_ptr = 1; |
|
|
932 | #endif |
|
|
933 | |
|
|
934 | loop_init (EV_A_ flags); |
|
|
935 | |
589 | if (ev_method) |
936 | if (ev_method (EV_A)) |
590 | { |
937 | { |
591 | ev_watcher_init (&sigev, sigcb); |
|
|
592 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
593 | siginit (); |
938 | siginit (EV_A); |
594 | |
939 | |
595 | #ifndef WIN32 |
940 | #ifndef _WIN32 |
596 | ev_signal_init (&childev, childcb, SIGCHLD); |
941 | ev_signal_init (&childev, childcb, SIGCHLD); |
597 | ev_set_priority (&childev, EV_MAXPRI); |
942 | ev_set_priority (&childev, EV_MAXPRI); |
598 | ev_signal_start (&childev); |
943 | ev_signal_start (EV_A_ &childev); |
|
|
944 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
599 | #endif |
945 | #endif |
600 | } |
946 | } |
|
|
947 | else |
|
|
948 | ev_default_loop_ptr = 0; |
601 | } |
949 | } |
602 | |
950 | |
603 | return ev_method; |
951 | return ev_default_loop_ptr; |
|
|
952 | } |
|
|
953 | |
|
|
954 | void |
|
|
955 | ev_default_destroy (void) |
|
|
956 | { |
|
|
957 | #if EV_MULTIPLICITY |
|
|
958 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
959 | #endif |
|
|
960 | |
|
|
961 | #ifndef _WIN32 |
|
|
962 | ev_ref (EV_A); /* child watcher */ |
|
|
963 | ev_signal_stop (EV_A_ &childev); |
|
|
964 | #endif |
|
|
965 | |
|
|
966 | ev_ref (EV_A); /* signal watcher */ |
|
|
967 | ev_io_stop (EV_A_ &sigev); |
|
|
968 | |
|
|
969 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
970 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
971 | |
|
|
972 | loop_destroy (EV_A); |
|
|
973 | } |
|
|
974 | |
|
|
975 | void |
|
|
976 | ev_default_fork (void) |
|
|
977 | { |
|
|
978 | #if EV_MULTIPLICITY |
|
|
979 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | if (method) |
|
|
983 | postfork = 1; |
604 | } |
984 | } |
605 | |
985 | |
606 | /*****************************************************************************/ |
986 | /*****************************************************************************/ |
607 | |
987 | |
608 | void |
|
|
609 | ev_fork_prepare (void) |
|
|
610 | { |
|
|
611 | /* nop */ |
|
|
612 | } |
|
|
613 | |
|
|
614 | void |
|
|
615 | ev_fork_parent (void) |
|
|
616 | { |
|
|
617 | /* nop */ |
|
|
618 | } |
|
|
619 | |
|
|
620 | void |
|
|
621 | ev_fork_child (void) |
|
|
622 | { |
|
|
623 | #if EV_USE_EPOLL |
|
|
624 | if (ev_method == EVMETHOD_EPOLL) |
|
|
625 | epoll_postfork_child (); |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | ev_io_stop (&sigev); |
|
|
629 | close (sigpipe [0]); |
|
|
630 | close (sigpipe [1]); |
|
|
631 | pipe (sigpipe); |
|
|
632 | siginit (); |
|
|
633 | } |
|
|
634 | |
|
|
635 | /*****************************************************************************/ |
|
|
636 | |
|
|
637 | static void |
988 | static int |
|
|
989 | any_pending (EV_P) |
|
|
990 | { |
|
|
991 | int pri; |
|
|
992 | |
|
|
993 | for (pri = NUMPRI; pri--; ) |
|
|
994 | if (pendingcnt [pri]) |
|
|
995 | return 1; |
|
|
996 | |
|
|
997 | return 0; |
|
|
998 | } |
|
|
999 | |
|
|
1000 | static void |
638 | call_pending (void) |
1001 | call_pending (EV_P) |
639 | { |
1002 | { |
640 | int pri; |
1003 | int pri; |
641 | |
1004 | |
642 | for (pri = NUMPRI; pri--; ) |
1005 | for (pri = NUMPRI; pri--; ) |
643 | while (pendingcnt [pri]) |
1006 | while (pendingcnt [pri]) |
… | |
… | |
645 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1008 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
646 | |
1009 | |
647 | if (p->w) |
1010 | if (p->w) |
648 | { |
1011 | { |
649 | p->w->pending = 0; |
1012 | p->w->pending = 0; |
650 | p->w->cb (p->w, p->events); |
1013 | EV_CB_INVOKE (p->w, p->events); |
651 | } |
1014 | } |
652 | } |
1015 | } |
653 | } |
1016 | } |
654 | |
1017 | |
655 | static void |
1018 | static void |
656 | timers_reify (void) |
1019 | timers_reify (EV_P) |
657 | { |
1020 | { |
658 | while (timercnt && timers [0]->at <= now) |
1021 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
659 | { |
1022 | { |
660 | struct ev_timer *w = timers [0]; |
1023 | struct ev_timer *w = timers [0]; |
|
|
1024 | |
|
|
1025 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
661 | |
1026 | |
662 | /* first reschedule or stop timer */ |
1027 | /* first reschedule or stop timer */ |
663 | if (w->repeat) |
1028 | if (w->repeat) |
664 | { |
1029 | { |
665 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1030 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1031 | |
666 | w->at = now + w->repeat; |
1032 | ((WT)w)->at += w->repeat; |
|
|
1033 | if (((WT)w)->at < mn_now) |
|
|
1034 | ((WT)w)->at = mn_now; |
|
|
1035 | |
667 | downheap ((WT *)timers, timercnt, 0); |
1036 | downheap ((WT *)timers, timercnt, 0); |
668 | } |
1037 | } |
669 | else |
1038 | else |
670 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1039 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
671 | |
1040 | |
672 | event ((W)w, EV_TIMEOUT); |
1041 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
673 | } |
1042 | } |
674 | } |
1043 | } |
675 | |
1044 | |
|
|
1045 | #if EV_PERIODICS |
676 | static void |
1046 | static void |
677 | periodics_reify (void) |
1047 | periodics_reify (EV_P) |
678 | { |
1048 | { |
679 | while (periodiccnt && periodics [0]->at <= ev_now) |
1049 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
680 | { |
1050 | { |
681 | struct ev_periodic *w = periodics [0]; |
1051 | struct ev_periodic *w = periodics [0]; |
682 | |
1052 | |
|
|
1053 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1054 | |
683 | /* first reschedule or stop timer */ |
1055 | /* first reschedule or stop timer */ |
684 | if (w->interval) |
1056 | if (w->reschedule_cb) |
685 | { |
1057 | { |
|
|
1058 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1059 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1060 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1061 | } |
|
|
1062 | else if (w->interval) |
|
|
1063 | { |
686 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1064 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
687 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1065 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
688 | downheap ((WT *)periodics, periodiccnt, 0); |
1066 | downheap ((WT *)periodics, periodiccnt, 0); |
689 | } |
1067 | } |
690 | else |
1068 | else |
691 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1069 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
692 | |
1070 | |
693 | event ((W)w, EV_PERIODIC); |
1071 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
694 | } |
1072 | } |
695 | } |
1073 | } |
696 | |
1074 | |
697 | static void |
1075 | static void |
698 | periodics_reschedule (ev_tstamp diff) |
1076 | periodics_reschedule (EV_P) |
699 | { |
1077 | { |
700 | int i; |
1078 | int i; |
701 | |
1079 | |
702 | /* adjust periodics after time jump */ |
1080 | /* adjust periodics after time jump */ |
703 | for (i = 0; i < periodiccnt; ++i) |
1081 | for (i = 0; i < periodiccnt; ++i) |
704 | { |
1082 | { |
705 | struct ev_periodic *w = periodics [i]; |
1083 | struct ev_periodic *w = periodics [i]; |
706 | |
1084 | |
|
|
1085 | if (w->reschedule_cb) |
|
|
1086 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
707 | if (w->interval) |
1087 | else if (w->interval) |
708 | { |
|
|
709 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1088 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
710 | |
|
|
711 | if (fabs (diff) >= 1e-4) |
|
|
712 | { |
|
|
713 | ev_periodic_stop (w); |
|
|
714 | ev_periodic_start (w); |
|
|
715 | |
|
|
716 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
717 | } |
|
|
718 | } |
|
|
719 | } |
1089 | } |
720 | } |
|
|
721 | |
1090 | |
722 | static int |
1091 | /* now rebuild the heap */ |
|
|
1092 | for (i = periodiccnt >> 1; i--; ) |
|
|
1093 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1094 | } |
|
|
1095 | #endif |
|
|
1096 | |
|
|
1097 | inline int |
723 | time_update_monotonic (void) |
1098 | time_update_monotonic (EV_P) |
724 | { |
1099 | { |
725 | now = get_clock (); |
1100 | mn_now = get_clock (); |
726 | |
1101 | |
727 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
1102 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
728 | { |
1103 | { |
729 | ev_now = now + diff; |
1104 | ev_rt_now = rtmn_diff + mn_now; |
730 | return 0; |
1105 | return 0; |
731 | } |
1106 | } |
732 | else |
1107 | else |
733 | { |
1108 | { |
734 | now_floor = now; |
1109 | now_floor = mn_now; |
735 | ev_now = ev_time (); |
1110 | ev_rt_now = ev_time (); |
736 | return 1; |
1111 | return 1; |
737 | } |
1112 | } |
738 | } |
1113 | } |
739 | |
1114 | |
740 | static void |
1115 | static void |
741 | time_update (void) |
1116 | time_update (EV_P) |
742 | { |
1117 | { |
743 | int i; |
1118 | int i; |
744 | |
1119 | |
745 | #if EV_USE_MONOTONIC |
1120 | #if EV_USE_MONOTONIC |
746 | if (expect_true (have_monotonic)) |
1121 | if (expect_true (have_monotonic)) |
747 | { |
1122 | { |
748 | if (time_update_monotonic ()) |
1123 | if (time_update_monotonic (EV_A)) |
749 | { |
1124 | { |
750 | ev_tstamp odiff = diff; |
1125 | ev_tstamp odiff = rtmn_diff; |
751 | |
1126 | |
752 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1127 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
753 | { |
1128 | { |
754 | diff = ev_now - now; |
1129 | rtmn_diff = ev_rt_now - mn_now; |
755 | |
1130 | |
756 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1131 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
757 | return; /* all is well */ |
1132 | return; /* all is well */ |
758 | |
1133 | |
759 | ev_now = ev_time (); |
1134 | ev_rt_now = ev_time (); |
760 | now = get_clock (); |
1135 | mn_now = get_clock (); |
761 | now_floor = now; |
1136 | now_floor = mn_now; |
762 | } |
1137 | } |
763 | |
1138 | |
|
|
1139 | # if EV_PERIODICS |
764 | periodics_reschedule (diff - odiff); |
1140 | periodics_reschedule (EV_A); |
|
|
1141 | # endif |
765 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1142 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1143 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
766 | } |
1144 | } |
767 | } |
1145 | } |
768 | else |
1146 | else |
769 | #endif |
1147 | #endif |
770 | { |
1148 | { |
771 | ev_now = ev_time (); |
1149 | ev_rt_now = ev_time (); |
772 | |
1150 | |
773 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1151 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
774 | { |
1152 | { |
|
|
1153 | #if EV_PERIODICS |
775 | periodics_reschedule (ev_now - now); |
1154 | periodics_reschedule (EV_A); |
|
|
1155 | #endif |
776 | |
1156 | |
777 | /* adjust timers. this is easy, as the offset is the same for all */ |
1157 | /* adjust timers. this is easy, as the offset is the same for all */ |
778 | for (i = 0; i < timercnt; ++i) |
1158 | for (i = 0; i < timercnt; ++i) |
779 | timers [i]->at += diff; |
1159 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
780 | } |
1160 | } |
781 | |
1161 | |
782 | now = ev_now; |
1162 | mn_now = ev_rt_now; |
783 | } |
1163 | } |
784 | } |
1164 | } |
785 | |
1165 | |
786 | int ev_loop_done; |
1166 | void |
|
|
1167 | ev_ref (EV_P) |
|
|
1168 | { |
|
|
1169 | ++activecnt; |
|
|
1170 | } |
787 | |
1171 | |
|
|
1172 | void |
|
|
1173 | ev_unref (EV_P) |
|
|
1174 | { |
|
|
1175 | --activecnt; |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | static int loop_done; |
|
|
1179 | |
|
|
1180 | void |
788 | void ev_loop (int flags) |
1181 | ev_loop (EV_P_ int flags) |
789 | { |
1182 | { |
790 | double block; |
1183 | double block; |
791 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1184 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
792 | |
1185 | |
793 | do |
1186 | while (activecnt) |
794 | { |
1187 | { |
795 | /* queue check watchers (and execute them) */ |
1188 | /* queue check watchers (and execute them) */ |
796 | if (expect_false (preparecnt)) |
1189 | if (expect_false (preparecnt)) |
797 | { |
1190 | { |
798 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1191 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
799 | call_pending (); |
1192 | call_pending (EV_A); |
800 | } |
1193 | } |
801 | |
1194 | |
|
|
1195 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1196 | if (expect_false (postfork)) |
|
|
1197 | loop_fork (EV_A); |
|
|
1198 | |
802 | /* update fd-related kernel structures */ |
1199 | /* update fd-related kernel structures */ |
803 | fd_reify (); |
1200 | fd_reify (EV_A); |
804 | |
1201 | |
805 | /* calculate blocking time */ |
1202 | /* calculate blocking time */ |
806 | |
1203 | |
807 | /* we only need this for !monotonic clockor timers, but as we basically |
1204 | /* we only need this for !monotonic clock or timers, but as we basically |
808 | always have timers, we just calculate it always */ |
1205 | always have timers, we just calculate it always */ |
809 | #if EV_USE_MONOTONIC |
1206 | #if EV_USE_MONOTONIC |
810 | if (expect_true (have_monotonic)) |
1207 | if (expect_true (have_monotonic)) |
811 | time_update_monotonic (); |
1208 | time_update_monotonic (EV_A); |
812 | else |
1209 | else |
813 | #endif |
1210 | #endif |
814 | { |
1211 | { |
815 | ev_now = ev_time (); |
1212 | ev_rt_now = ev_time (); |
816 | now = ev_now; |
1213 | mn_now = ev_rt_now; |
817 | } |
1214 | } |
818 | |
1215 | |
819 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1216 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
820 | block = 0.; |
1217 | block = 0.; |
821 | else |
1218 | else |
822 | { |
1219 | { |
823 | block = MAX_BLOCKTIME; |
1220 | block = MAX_BLOCKTIME; |
824 | |
1221 | |
825 | if (timercnt) |
1222 | if (timercnt) |
826 | { |
1223 | { |
827 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1224 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
828 | if (block > to) block = to; |
1225 | if (block > to) block = to; |
829 | } |
1226 | } |
830 | |
1227 | |
|
|
1228 | #if EV_PERIODICS |
831 | if (periodiccnt) |
1229 | if (periodiccnt) |
832 | { |
1230 | { |
833 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1231 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
834 | if (block > to) block = to; |
1232 | if (block > to) block = to; |
835 | } |
1233 | } |
|
|
1234 | #endif |
836 | |
1235 | |
837 | if (block < 0.) block = 0.; |
1236 | if (block < 0.) block = 0.; |
838 | } |
1237 | } |
839 | |
1238 | |
840 | method_poll (block); |
1239 | method_poll (EV_A_ block); |
841 | |
1240 | |
842 | /* update ev_now, do magic */ |
1241 | /* update ev_rt_now, do magic */ |
843 | time_update (); |
1242 | time_update (EV_A); |
844 | |
1243 | |
845 | /* queue pending timers and reschedule them */ |
1244 | /* queue pending timers and reschedule them */ |
846 | timers_reify (); /* relative timers called last */ |
1245 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1246 | #if EV_PERIODICS |
847 | periodics_reify (); /* absolute timers called first */ |
1247 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1248 | #endif |
848 | |
1249 | |
849 | /* queue idle watchers unless io or timers are pending */ |
1250 | /* queue idle watchers unless io or timers are pending */ |
850 | if (!pendingcnt) |
1251 | if (idlecnt && !any_pending (EV_A)) |
851 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1252 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
852 | |
1253 | |
853 | /* queue check watchers, to be executed first */ |
1254 | /* queue check watchers, to be executed first */ |
854 | if (checkcnt) |
1255 | if (checkcnt) |
855 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1256 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
856 | |
1257 | |
857 | call_pending (); |
1258 | call_pending (EV_A); |
858 | } |
|
|
859 | while (!ev_loop_done); |
|
|
860 | |
1259 | |
|
|
1260 | if (loop_done) |
|
|
1261 | break; |
|
|
1262 | } |
|
|
1263 | |
861 | if (ev_loop_done != 2) |
1264 | if (loop_done != 2) |
862 | ev_loop_done = 0; |
1265 | loop_done = 0; |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | void |
|
|
1269 | ev_unloop (EV_P_ int how) |
|
|
1270 | { |
|
|
1271 | loop_done = how; |
863 | } |
1272 | } |
864 | |
1273 | |
865 | /*****************************************************************************/ |
1274 | /*****************************************************************************/ |
866 | |
1275 | |
867 | static void |
1276 | inline void |
868 | wlist_add (WL *head, WL elem) |
1277 | wlist_add (WL *head, WL elem) |
869 | { |
1278 | { |
870 | elem->next = *head; |
1279 | elem->next = *head; |
871 | *head = elem; |
1280 | *head = elem; |
872 | } |
1281 | } |
873 | |
1282 | |
874 | static void |
1283 | inline void |
875 | wlist_del (WL *head, WL elem) |
1284 | wlist_del (WL *head, WL elem) |
876 | { |
1285 | { |
877 | while (*head) |
1286 | while (*head) |
878 | { |
1287 | { |
879 | if (*head == elem) |
1288 | if (*head == elem) |
… | |
… | |
884 | |
1293 | |
885 | head = &(*head)->next; |
1294 | head = &(*head)->next; |
886 | } |
1295 | } |
887 | } |
1296 | } |
888 | |
1297 | |
889 | static void |
1298 | inline void |
890 | ev_clear_pending (W w) |
1299 | ev_clear_pending (EV_P_ W w) |
891 | { |
1300 | { |
892 | if (w->pending) |
1301 | if (w->pending) |
893 | { |
1302 | { |
894 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1303 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
895 | w->pending = 0; |
1304 | w->pending = 0; |
896 | } |
1305 | } |
897 | } |
1306 | } |
898 | |
1307 | |
899 | static void |
1308 | inline void |
900 | ev_start (W w, int active) |
1309 | ev_start (EV_P_ W w, int active) |
901 | { |
1310 | { |
902 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1311 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
903 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1312 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
904 | |
1313 | |
905 | w->active = active; |
1314 | w->active = active; |
|
|
1315 | ev_ref (EV_A); |
906 | } |
1316 | } |
907 | |
1317 | |
908 | static void |
1318 | inline void |
909 | ev_stop (W w) |
1319 | ev_stop (EV_P_ W w) |
910 | { |
1320 | { |
|
|
1321 | ev_unref (EV_A); |
911 | w->active = 0; |
1322 | w->active = 0; |
912 | } |
1323 | } |
913 | |
1324 | |
914 | /*****************************************************************************/ |
1325 | /*****************************************************************************/ |
915 | |
1326 | |
916 | void |
1327 | void |
917 | ev_io_start (struct ev_io *w) |
1328 | ev_io_start (EV_P_ struct ev_io *w) |
918 | { |
1329 | { |
919 | int fd = w->fd; |
1330 | int fd = w->fd; |
920 | |
1331 | |
921 | if (ev_is_active (w)) |
1332 | if (ev_is_active (w)) |
922 | return; |
1333 | return; |
923 | |
1334 | |
924 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1335 | assert (("ev_io_start called with negative fd", fd >= 0)); |
925 | |
1336 | |
926 | ev_start ((W)w, 1); |
1337 | ev_start (EV_A_ (W)w, 1); |
927 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1338 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
928 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1339 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
929 | |
1340 | |
930 | fd_change (fd); |
1341 | fd_change (EV_A_ fd); |
931 | } |
1342 | } |
932 | |
1343 | |
933 | void |
1344 | void |
934 | ev_io_stop (struct ev_io *w) |
1345 | ev_io_stop (EV_P_ struct ev_io *w) |
935 | { |
1346 | { |
936 | ev_clear_pending ((W)w); |
1347 | ev_clear_pending (EV_A_ (W)w); |
937 | if (!ev_is_active (w)) |
1348 | if (!ev_is_active (w)) |
938 | return; |
1349 | return; |
939 | |
1350 | |
|
|
1351 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1352 | |
940 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1353 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
941 | ev_stop ((W)w); |
1354 | ev_stop (EV_A_ (W)w); |
942 | |
1355 | |
943 | fd_change (w->fd); |
1356 | fd_change (EV_A_ w->fd); |
944 | } |
1357 | } |
945 | |
1358 | |
946 | void |
1359 | void |
947 | ev_timer_start (struct ev_timer *w) |
1360 | ev_timer_start (EV_P_ struct ev_timer *w) |
948 | { |
1361 | { |
949 | if (ev_is_active (w)) |
1362 | if (ev_is_active (w)) |
950 | return; |
1363 | return; |
951 | |
1364 | |
952 | w->at += now; |
1365 | ((WT)w)->at += mn_now; |
953 | |
1366 | |
954 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1367 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
955 | |
1368 | |
956 | ev_start ((W)w, ++timercnt); |
1369 | ev_start (EV_A_ (W)w, ++timercnt); |
957 | array_needsize (timers, timermax, timercnt, ); |
1370 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
958 | timers [timercnt - 1] = w; |
1371 | timers [timercnt - 1] = w; |
959 | upheap ((WT *)timers, timercnt - 1); |
1372 | upheap ((WT *)timers, timercnt - 1); |
960 | } |
|
|
961 | |
1373 | |
|
|
1374 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1375 | } |
|
|
1376 | |
962 | void |
1377 | void |
963 | ev_timer_stop (struct ev_timer *w) |
1378 | ev_timer_stop (EV_P_ struct ev_timer *w) |
964 | { |
1379 | { |
965 | ev_clear_pending ((W)w); |
1380 | ev_clear_pending (EV_A_ (W)w); |
966 | if (!ev_is_active (w)) |
1381 | if (!ev_is_active (w)) |
967 | return; |
1382 | return; |
968 | |
1383 | |
|
|
1384 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1385 | |
969 | if (w->active < timercnt--) |
1386 | if (((W)w)->active < timercnt--) |
970 | { |
1387 | { |
971 | timers [w->active - 1] = timers [timercnt]; |
1388 | timers [((W)w)->active - 1] = timers [timercnt]; |
972 | downheap ((WT *)timers, timercnt, w->active - 1); |
1389 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
973 | } |
1390 | } |
974 | |
1391 | |
975 | w->at = w->repeat; |
1392 | ((WT)w)->at -= mn_now; |
976 | |
1393 | |
977 | ev_stop ((W)w); |
1394 | ev_stop (EV_A_ (W)w); |
978 | } |
1395 | } |
979 | |
1396 | |
980 | void |
1397 | void |
981 | ev_timer_again (struct ev_timer *w) |
1398 | ev_timer_again (EV_P_ struct ev_timer *w) |
982 | { |
1399 | { |
983 | if (ev_is_active (w)) |
1400 | if (ev_is_active (w)) |
984 | { |
1401 | { |
985 | if (w->repeat) |
1402 | if (w->repeat) |
986 | { |
1403 | { |
987 | w->at = now + w->repeat; |
1404 | ((WT)w)->at = mn_now + w->repeat; |
988 | downheap ((WT *)timers, timercnt, w->active - 1); |
1405 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
989 | } |
1406 | } |
990 | else |
1407 | else |
991 | ev_timer_stop (w); |
1408 | ev_timer_stop (EV_A_ w); |
992 | } |
1409 | } |
993 | else if (w->repeat) |
1410 | else if (w->repeat) |
|
|
1411 | { |
|
|
1412 | w->at = w->repeat; |
994 | ev_timer_start (w); |
1413 | ev_timer_start (EV_A_ w); |
|
|
1414 | } |
995 | } |
1415 | } |
996 | |
1416 | |
|
|
1417 | #if EV_PERIODICS |
997 | void |
1418 | void |
998 | ev_periodic_start (struct ev_periodic *w) |
1419 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
999 | { |
1420 | { |
1000 | if (ev_is_active (w)) |
1421 | if (ev_is_active (w)) |
1001 | return; |
1422 | return; |
1002 | |
1423 | |
|
|
1424 | if (w->reschedule_cb) |
|
|
1425 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1426 | else if (w->interval) |
|
|
1427 | { |
1003 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1428 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1004 | |
|
|
1005 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1429 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1006 | if (w->interval) |
|
|
1007 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1430 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1431 | } |
1008 | |
1432 | |
1009 | ev_start ((W)w, ++periodiccnt); |
1433 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1010 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1434 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1011 | periodics [periodiccnt - 1] = w; |
1435 | periodics [periodiccnt - 1] = w; |
1012 | upheap ((WT *)periodics, periodiccnt - 1); |
1436 | upheap ((WT *)periodics, periodiccnt - 1); |
1013 | } |
|
|
1014 | |
1437 | |
|
|
1438 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1439 | } |
|
|
1440 | |
1015 | void |
1441 | void |
1016 | ev_periodic_stop (struct ev_periodic *w) |
1442 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1017 | { |
1443 | { |
1018 | ev_clear_pending ((W)w); |
1444 | ev_clear_pending (EV_A_ (W)w); |
1019 | if (!ev_is_active (w)) |
1445 | if (!ev_is_active (w)) |
1020 | return; |
1446 | return; |
1021 | |
1447 | |
|
|
1448 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1449 | |
1022 | if (w->active < periodiccnt--) |
1450 | if (((W)w)->active < periodiccnt--) |
1023 | { |
1451 | { |
1024 | periodics [w->active - 1] = periodics [periodiccnt]; |
1452 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1025 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1453 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1026 | } |
1454 | } |
1027 | |
1455 | |
1028 | ev_stop ((W)w); |
1456 | ev_stop (EV_A_ (W)w); |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | void |
|
|
1460 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1461 | { |
|
|
1462 | /* TODO: use adjustheap and recalculation */ |
|
|
1463 | ev_periodic_stop (EV_A_ w); |
|
|
1464 | ev_periodic_start (EV_A_ w); |
|
|
1465 | } |
|
|
1466 | #endif |
|
|
1467 | |
|
|
1468 | void |
|
|
1469 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1470 | { |
|
|
1471 | if (ev_is_active (w)) |
|
|
1472 | return; |
|
|
1473 | |
|
|
1474 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1475 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1476 | idles [idlecnt - 1] = w; |
|
|
1477 | } |
|
|
1478 | |
|
|
1479 | void |
|
|
1480 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1481 | { |
|
|
1482 | ev_clear_pending (EV_A_ (W)w); |
|
|
1483 | if (!ev_is_active (w)) |
|
|
1484 | return; |
|
|
1485 | |
|
|
1486 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1487 | ev_stop (EV_A_ (W)w); |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | void |
|
|
1491 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1492 | { |
|
|
1493 | if (ev_is_active (w)) |
|
|
1494 | return; |
|
|
1495 | |
|
|
1496 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1497 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1498 | prepares [preparecnt - 1] = w; |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | void |
|
|
1502 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1503 | { |
|
|
1504 | ev_clear_pending (EV_A_ (W)w); |
|
|
1505 | if (!ev_is_active (w)) |
|
|
1506 | return; |
|
|
1507 | |
|
|
1508 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1509 | ev_stop (EV_A_ (W)w); |
|
|
1510 | } |
|
|
1511 | |
|
|
1512 | void |
|
|
1513 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1514 | { |
|
|
1515 | if (ev_is_active (w)) |
|
|
1516 | return; |
|
|
1517 | |
|
|
1518 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1519 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1520 | checks [checkcnt - 1] = w; |
|
|
1521 | } |
|
|
1522 | |
|
|
1523 | void |
|
|
1524 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1525 | { |
|
|
1526 | ev_clear_pending (EV_A_ (W)w); |
|
|
1527 | if (!ev_is_active (w)) |
|
|
1528 | return; |
|
|
1529 | |
|
|
1530 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1531 | ev_stop (EV_A_ (W)w); |
1029 | } |
1532 | } |
1030 | |
1533 | |
1031 | #ifndef SA_RESTART |
1534 | #ifndef SA_RESTART |
1032 | # define SA_RESTART 0 |
1535 | # define SA_RESTART 0 |
1033 | #endif |
1536 | #endif |
1034 | |
1537 | |
1035 | void |
1538 | void |
1036 | ev_signal_start (struct ev_signal *w) |
1539 | ev_signal_start (EV_P_ struct ev_signal *w) |
1037 | { |
1540 | { |
|
|
1541 | #if EV_MULTIPLICITY |
|
|
1542 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1543 | #endif |
1038 | if (ev_is_active (w)) |
1544 | if (ev_is_active (w)) |
1039 | return; |
1545 | return; |
1040 | |
1546 | |
1041 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1547 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1042 | |
1548 | |
1043 | ev_start ((W)w, 1); |
1549 | ev_start (EV_A_ (W)w, 1); |
1044 | array_needsize (signals, signalmax, w->signum, signals_init); |
1550 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1045 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1551 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1046 | |
1552 | |
1047 | if (!w->next) |
1553 | if (!((WL)w)->next) |
1048 | { |
1554 | { |
|
|
1555 | #if _WIN32 |
|
|
1556 | signal (w->signum, sighandler); |
|
|
1557 | #else |
1049 | struct sigaction sa; |
1558 | struct sigaction sa; |
1050 | sa.sa_handler = sighandler; |
1559 | sa.sa_handler = sighandler; |
1051 | sigfillset (&sa.sa_mask); |
1560 | sigfillset (&sa.sa_mask); |
1052 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1561 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1053 | sigaction (w->signum, &sa, 0); |
1562 | sigaction (w->signum, &sa, 0); |
|
|
1563 | #endif |
1054 | } |
1564 | } |
1055 | } |
1565 | } |
1056 | |
1566 | |
1057 | void |
1567 | void |
1058 | ev_signal_stop (struct ev_signal *w) |
1568 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1059 | { |
1569 | { |
1060 | ev_clear_pending ((W)w); |
1570 | ev_clear_pending (EV_A_ (W)w); |
1061 | if (!ev_is_active (w)) |
1571 | if (!ev_is_active (w)) |
1062 | return; |
1572 | return; |
1063 | |
1573 | |
1064 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1574 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1065 | ev_stop ((W)w); |
1575 | ev_stop (EV_A_ (W)w); |
1066 | |
1576 | |
1067 | if (!signals [w->signum - 1].head) |
1577 | if (!signals [w->signum - 1].head) |
1068 | signal (w->signum, SIG_DFL); |
1578 | signal (w->signum, SIG_DFL); |
1069 | } |
1579 | } |
1070 | |
1580 | |
1071 | void |
1581 | void |
1072 | ev_idle_start (struct ev_idle *w) |
1582 | ev_child_start (EV_P_ struct ev_child *w) |
1073 | { |
1583 | { |
|
|
1584 | #if EV_MULTIPLICITY |
|
|
1585 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1586 | #endif |
1074 | if (ev_is_active (w)) |
1587 | if (ev_is_active (w)) |
1075 | return; |
1588 | return; |
1076 | |
1589 | |
1077 | ev_start ((W)w, ++idlecnt); |
|
|
1078 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1079 | idles [idlecnt - 1] = w; |
|
|
1080 | } |
|
|
1081 | |
|
|
1082 | void |
|
|
1083 | ev_idle_stop (struct ev_idle *w) |
|
|
1084 | { |
|
|
1085 | ev_clear_pending ((W)w); |
|
|
1086 | if (ev_is_active (w)) |
|
|
1087 | return; |
|
|
1088 | |
|
|
1089 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1090 | ev_stop ((W)w); |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | void |
|
|
1094 | ev_prepare_start (struct ev_prepare *w) |
|
|
1095 | { |
|
|
1096 | if (ev_is_active (w)) |
|
|
1097 | return; |
|
|
1098 | |
|
|
1099 | ev_start ((W)w, ++preparecnt); |
|
|
1100 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1101 | prepares [preparecnt - 1] = w; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | void |
|
|
1105 | ev_prepare_stop (struct ev_prepare *w) |
|
|
1106 | { |
|
|
1107 | ev_clear_pending ((W)w); |
|
|
1108 | if (ev_is_active (w)) |
|
|
1109 | return; |
|
|
1110 | |
|
|
1111 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1112 | ev_stop ((W)w); |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | void |
|
|
1116 | ev_check_start (struct ev_check *w) |
|
|
1117 | { |
|
|
1118 | if (ev_is_active (w)) |
|
|
1119 | return; |
|
|
1120 | |
|
|
1121 | ev_start ((W)w, ++checkcnt); |
|
|
1122 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1123 | checks [checkcnt - 1] = w; |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | void |
|
|
1127 | ev_check_stop (struct ev_check *w) |
|
|
1128 | { |
|
|
1129 | ev_clear_pending ((W)w); |
|
|
1130 | if (ev_is_active (w)) |
|
|
1131 | return; |
|
|
1132 | |
|
|
1133 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1134 | ev_stop ((W)w); |
|
|
1135 | } |
|
|
1136 | |
|
|
1137 | void |
|
|
1138 | ev_child_start (struct ev_child *w) |
|
|
1139 | { |
|
|
1140 | if (ev_is_active (w)) |
|
|
1141 | return; |
|
|
1142 | |
|
|
1143 | ev_start ((W)w, 1); |
1590 | ev_start (EV_A_ (W)w, 1); |
1144 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1591 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1145 | } |
1592 | } |
1146 | |
1593 | |
1147 | void |
1594 | void |
1148 | ev_child_stop (struct ev_child *w) |
1595 | ev_child_stop (EV_P_ struct ev_child *w) |
1149 | { |
1596 | { |
1150 | ev_clear_pending ((W)w); |
1597 | ev_clear_pending (EV_A_ (W)w); |
1151 | if (ev_is_active (w)) |
1598 | if (!ev_is_active (w)) |
1152 | return; |
1599 | return; |
1153 | |
1600 | |
1154 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1601 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1155 | ev_stop ((W)w); |
1602 | ev_stop (EV_A_ (W)w); |
1156 | } |
1603 | } |
1157 | |
1604 | |
1158 | /*****************************************************************************/ |
1605 | /*****************************************************************************/ |
1159 | |
1606 | |
1160 | struct ev_once |
1607 | struct ev_once |
… | |
… | |
1164 | void (*cb)(int revents, void *arg); |
1611 | void (*cb)(int revents, void *arg); |
1165 | void *arg; |
1612 | void *arg; |
1166 | }; |
1613 | }; |
1167 | |
1614 | |
1168 | static void |
1615 | static void |
1169 | once_cb (struct ev_once *once, int revents) |
1616 | once_cb (EV_P_ struct ev_once *once, int revents) |
1170 | { |
1617 | { |
1171 | void (*cb)(int revents, void *arg) = once->cb; |
1618 | void (*cb)(int revents, void *arg) = once->cb; |
1172 | void *arg = once->arg; |
1619 | void *arg = once->arg; |
1173 | |
1620 | |
1174 | ev_io_stop (&once->io); |
1621 | ev_io_stop (EV_A_ &once->io); |
1175 | ev_timer_stop (&once->to); |
1622 | ev_timer_stop (EV_A_ &once->to); |
1176 | free (once); |
1623 | ev_free (once); |
1177 | |
1624 | |
1178 | cb (revents, arg); |
1625 | cb (revents, arg); |
1179 | } |
1626 | } |
1180 | |
1627 | |
1181 | static void |
1628 | static void |
1182 | once_cb_io (struct ev_io *w, int revents) |
1629 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1183 | { |
1630 | { |
1184 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1631 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1185 | } |
1632 | } |
1186 | |
1633 | |
1187 | static void |
1634 | static void |
1188 | once_cb_to (struct ev_timer *w, int revents) |
1635 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1189 | { |
1636 | { |
1190 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1637 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1191 | } |
1638 | } |
1192 | |
1639 | |
1193 | void |
1640 | void |
1194 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1641 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1195 | { |
1642 | { |
1196 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1643 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1197 | |
1644 | |
1198 | if (!once) |
1645 | if (!once) |
1199 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1646 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1200 | else |
1647 | else |
1201 | { |
1648 | { |
1202 | once->cb = cb; |
1649 | once->cb = cb; |
1203 | once->arg = arg; |
1650 | once->arg = arg; |
1204 | |
1651 | |
1205 | ev_watcher_init (&once->io, once_cb_io); |
1652 | ev_init (&once->io, once_cb_io); |
1206 | if (fd >= 0) |
1653 | if (fd >= 0) |
1207 | { |
1654 | { |
1208 | ev_io_set (&once->io, fd, events); |
1655 | ev_io_set (&once->io, fd, events); |
1209 | ev_io_start (&once->io); |
1656 | ev_io_start (EV_A_ &once->io); |
1210 | } |
1657 | } |
1211 | |
1658 | |
1212 | ev_watcher_init (&once->to, once_cb_to); |
1659 | ev_init (&once->to, once_cb_to); |
1213 | if (timeout >= 0.) |
1660 | if (timeout >= 0.) |
1214 | { |
1661 | { |
1215 | ev_timer_set (&once->to, timeout, 0.); |
1662 | ev_timer_set (&once->to, timeout, 0.); |
1216 | ev_timer_start (&once->to); |
1663 | ev_timer_start (EV_A_ &once->to); |
1217 | } |
1664 | } |
1218 | } |
1665 | } |
1219 | } |
1666 | } |
1220 | |
1667 | |
1221 | /*****************************************************************************/ |
1668 | #ifdef __cplusplus |
1222 | |
|
|
1223 | #if 0 |
|
|
1224 | |
|
|
1225 | struct ev_io wio; |
|
|
1226 | |
|
|
1227 | static void |
|
|
1228 | sin_cb (struct ev_io *w, int revents) |
|
|
1229 | { |
|
|
1230 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1231 | } |
1669 | } |
1232 | |
|
|
1233 | static void |
|
|
1234 | ocb (struct ev_timer *w, int revents) |
|
|
1235 | { |
|
|
1236 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1237 | ev_timer_stop (w); |
|
|
1238 | ev_timer_start (w); |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | static void |
|
|
1242 | scb (struct ev_signal *w, int revents) |
|
|
1243 | { |
|
|
1244 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1245 | ev_io_stop (&wio); |
|
|
1246 | ev_io_start (&wio); |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | static void |
|
|
1250 | gcb (struct ev_signal *w, int revents) |
|
|
1251 | { |
|
|
1252 | fprintf (stderr, "generic %x\n", revents); |
|
|
1253 | |
|
|
1254 | } |
|
|
1255 | |
|
|
1256 | int main (void) |
|
|
1257 | { |
|
|
1258 | ev_init (0); |
|
|
1259 | |
|
|
1260 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1261 | ev_io_start (&wio); |
|
|
1262 | |
|
|
1263 | struct ev_timer t[10000]; |
|
|
1264 | |
|
|
1265 | #if 0 |
|
|
1266 | int i; |
|
|
1267 | for (i = 0; i < 10000; ++i) |
|
|
1268 | { |
|
|
1269 | struct ev_timer *w = t + i; |
|
|
1270 | ev_watcher_init (w, ocb, i); |
|
|
1271 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1272 | ev_timer_start (w); |
|
|
1273 | if (drand48 () < 0.5) |
|
|
1274 | ev_timer_stop (w); |
|
|
1275 | } |
|
|
1276 | #endif |
1670 | #endif |
1277 | |
1671 | |
1278 | struct ev_timer t1; |
|
|
1279 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1280 | ev_timer_start (&t1); |
|
|
1281 | |
|
|
1282 | struct ev_signal sig; |
|
|
1283 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1284 | ev_signal_start (&sig); |
|
|
1285 | |
|
|
1286 | struct ev_check cw; |
|
|
1287 | ev_check_init (&cw, gcb); |
|
|
1288 | ev_check_start (&cw); |
|
|
1289 | |
|
|
1290 | struct ev_idle iw; |
|
|
1291 | ev_idle_init (&iw, gcb); |
|
|
1292 | ev_idle_start (&iw); |
|
|
1293 | |
|
|
1294 | ev_loop (0); |
|
|
1295 | |
|
|
1296 | return 0; |
|
|
1297 | } |
|
|
1298 | |
|
|
1299 | #endif |
|
|
1300 | |
|
|
1301 | |
|
|
1302 | |
|
|
1303 | |
|
|