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