… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
|
|
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
32 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
|
|
42 | |
|
|
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
|
|
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
|
|
48 | # define EV_USE_REALTIME 1 |
|
|
49 | # endif |
|
|
50 | # else |
|
|
51 | # ifndef EV_USE_MONOTONIC |
|
|
52 | # define EV_USE_MONOTONIC 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_REALTIME |
|
|
55 | # define EV_USE_REALTIME 0 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | |
|
|
59 | # ifndef EV_USE_SELECT |
|
|
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
|
|
65 | # endif |
|
|
66 | |
|
|
67 | # ifndef EV_USE_POLL |
|
|
68 | # if HAVE_POLL && HAVE_POLL_H |
|
|
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
|
|
73 | # endif |
|
|
74 | |
|
|
75 | # ifndef EV_USE_EPOLL |
|
|
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
|
|
81 | # endif |
|
|
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
|
|
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
85 | # define EV_USE_KQUEUE 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_KQUEUE 0 |
|
|
88 | # endif |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # ifndef EV_USE_PORT |
|
|
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
93 | # define EV_USE_PORT 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_PORT 0 |
|
|
96 | # endif |
|
|
97 | # endif |
|
|
98 | |
33 | #endif |
99 | #endif |
34 | |
100 | |
35 | #include <math.h> |
101 | #include <math.h> |
36 | #include <stdlib.h> |
102 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
103 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
104 | #include <stddef.h> |
41 | |
105 | |
42 | #include <stdio.h> |
106 | #include <stdio.h> |
43 | |
107 | |
44 | #include <assert.h> |
108 | #include <assert.h> |
45 | #include <errno.h> |
109 | #include <errno.h> |
46 | #include <sys/types.h> |
110 | #include <sys/types.h> |
47 | #include <sys/wait.h> |
|
|
48 | #include <sys/time.h> |
|
|
49 | #include <time.h> |
111 | #include <time.h> |
50 | |
112 | |
|
|
113 | #include <signal.h> |
|
|
114 | |
|
|
115 | #ifndef _WIN32 |
|
|
116 | # include <unistd.h> |
|
|
117 | # include <sys/time.h> |
|
|
118 | # include <sys/wait.h> |
|
|
119 | #else |
|
|
120 | # define WIN32_LEAN_AND_MEAN |
|
|
121 | # include <windows.h> |
|
|
122 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
123 | # define EV_SELECT_IS_WINSOCKET 1 |
|
|
124 | # endif |
|
|
125 | #endif |
|
|
126 | |
|
|
127 | /**/ |
|
|
128 | |
51 | #ifndef EV_USE_MONOTONIC |
129 | #ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 1 |
130 | # define EV_USE_MONOTONIC 0 |
|
|
131 | #endif |
|
|
132 | |
|
|
133 | #ifndef EV_USE_REALTIME |
|
|
134 | # define EV_USE_REALTIME 0 |
|
|
135 | #endif |
|
|
136 | |
|
|
137 | #ifndef EV_USE_SELECT |
|
|
138 | # define EV_USE_SELECT 1 |
|
|
139 | #endif |
|
|
140 | |
|
|
141 | #ifndef EV_USE_POLL |
|
|
142 | # ifdef _WIN32 |
|
|
143 | # define EV_USE_POLL 0 |
|
|
144 | # else |
|
|
145 | # define EV_USE_POLL 1 |
53 | #endif |
146 | # endif |
|
|
147 | #endif |
|
|
148 | |
|
|
149 | #ifndef EV_USE_EPOLL |
|
|
150 | # define EV_USE_EPOLL 0 |
|
|
151 | #endif |
|
|
152 | |
|
|
153 | #ifndef EV_USE_KQUEUE |
|
|
154 | # define EV_USE_KQUEUE 0 |
|
|
155 | #endif |
|
|
156 | |
|
|
157 | #ifndef EV_USE_PORT |
|
|
158 | # define EV_USE_PORT 0 |
|
|
159 | #endif |
|
|
160 | |
|
|
161 | /**/ |
54 | |
162 | |
55 | #ifndef CLOCK_MONOTONIC |
163 | #ifndef CLOCK_MONOTONIC |
56 | # undef EV_USE_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
57 | # define EV_USE_MONOTONIC 0 |
165 | # define EV_USE_MONOTONIC 0 |
58 | #endif |
166 | #endif |
59 | |
167 | |
60 | #ifndef EV_USE_SELECT |
|
|
61 | # define EV_USE_SELECT 1 |
|
|
62 | #endif |
|
|
63 | |
|
|
64 | #ifndef EV_USE_EPOLL |
|
|
65 | # define EV_USE_EPOLL 0 |
|
|
66 | #endif |
|
|
67 | |
|
|
68 | #ifndef CLOCK_REALTIME |
168 | #ifndef CLOCK_REALTIME |
|
|
169 | # undef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 0 |
170 | # define EV_USE_REALTIME 0 |
70 | #endif |
171 | #endif |
71 | #ifndef EV_USE_REALTIME |
172 | |
72 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
173 | #if EV_SELECT_IS_WINSOCKET |
|
|
174 | # include <winsock.h> |
73 | #endif |
175 | #endif |
|
|
176 | |
|
|
177 | /**/ |
74 | |
178 | |
75 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
76 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
77 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
78 | #define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
79 | |
183 | |
|
|
184 | #ifdef EV_H |
|
|
185 | # include EV_H |
|
|
186 | #else |
80 | #include "ev.h" |
187 | # include "ev.h" |
|
|
188 | #endif |
81 | |
189 | |
|
|
190 | #if __GNUC__ >= 3 |
|
|
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
192 | # define inline static inline |
|
|
193 | #else |
|
|
194 | # define expect(expr,value) (expr) |
|
|
195 | # define inline static |
|
|
196 | #endif |
|
|
197 | |
|
|
198 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
199 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
200 | |
|
|
201 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
202 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
|
|
203 | |
|
|
204 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
205 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
206 | |
82 | typedef struct ev_watcher *W; |
207 | typedef ev_watcher *W; |
83 | typedef struct ev_watcher_list *WL; |
208 | typedef ev_watcher_list *WL; |
84 | typedef struct ev_watcher_time *WT; |
209 | typedef ev_watcher_time *WT; |
85 | |
210 | |
86 | static ev_tstamp now, diff; /* monotonic clock */ |
211 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
212 | |
|
|
213 | #ifdef _WIN32 |
|
|
214 | # include "ev_win32.c" |
|
|
215 | #endif |
|
|
216 | |
|
|
217 | /*****************************************************************************/ |
|
|
218 | |
|
|
219 | static void (*syserr_cb)(const char *msg); |
|
|
220 | |
|
|
221 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
222 | { |
|
|
223 | syserr_cb = cb; |
|
|
224 | } |
|
|
225 | |
|
|
226 | static void |
|
|
227 | syserr (const char *msg) |
|
|
228 | { |
|
|
229 | if (!msg) |
|
|
230 | msg = "(libev) system error"; |
|
|
231 | |
|
|
232 | if (syserr_cb) |
|
|
233 | syserr_cb (msg); |
|
|
234 | else |
|
|
235 | { |
|
|
236 | perror (msg); |
|
|
237 | abort (); |
|
|
238 | } |
|
|
239 | } |
|
|
240 | |
|
|
241 | static void *(*alloc)(void *ptr, long size); |
|
|
242 | |
|
|
243 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
244 | { |
|
|
245 | alloc = cb; |
|
|
246 | } |
|
|
247 | |
|
|
248 | static void * |
|
|
249 | ev_realloc (void *ptr, long size) |
|
|
250 | { |
|
|
251 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
252 | |
|
|
253 | if (!ptr && size) |
|
|
254 | { |
|
|
255 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
256 | abort (); |
|
|
257 | } |
|
|
258 | |
|
|
259 | return ptr; |
|
|
260 | } |
|
|
261 | |
|
|
262 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
263 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
264 | |
|
|
265 | /*****************************************************************************/ |
|
|
266 | |
|
|
267 | typedef struct |
|
|
268 | { |
|
|
269 | WL head; |
|
|
270 | unsigned char events; |
|
|
271 | unsigned char reify; |
|
|
272 | #if EV_SELECT_IS_WINSOCKET |
|
|
273 | SOCKET handle; |
|
|
274 | #endif |
|
|
275 | } ANFD; |
|
|
276 | |
|
|
277 | typedef struct |
|
|
278 | { |
|
|
279 | W w; |
|
|
280 | int events; |
|
|
281 | } ANPENDING; |
|
|
282 | |
|
|
283 | #if EV_MULTIPLICITY |
|
|
284 | |
|
|
285 | struct ev_loop |
|
|
286 | { |
|
|
287 | ev_tstamp ev_rt_now; |
|
|
288 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
289 | #define VAR(name,decl) decl; |
|
|
290 | #include "ev_vars.h" |
|
|
291 | #undef VAR |
|
|
292 | }; |
|
|
293 | #include "ev_wrap.h" |
|
|
294 | |
|
|
295 | static struct ev_loop default_loop_struct; |
|
|
296 | struct ev_loop *ev_default_loop_ptr; |
|
|
297 | |
|
|
298 | #else |
|
|
299 | |
87 | ev_tstamp ev_now; |
300 | ev_tstamp ev_rt_now; |
88 | int ev_method; |
301 | #define VAR(name,decl) static decl; |
|
|
302 | #include "ev_vars.h" |
|
|
303 | #undef VAR |
89 | |
304 | |
90 | static int have_monotonic; /* runtime */ |
305 | static int ev_default_loop_ptr; |
91 | |
306 | |
92 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
307 | #endif |
93 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
94 | static void (*method_poll)(ev_tstamp timeout); |
|
|
95 | |
308 | |
96 | /*****************************************************************************/ |
309 | /*****************************************************************************/ |
97 | |
310 | |
98 | ev_tstamp |
311 | ev_tstamp |
99 | ev_time (void) |
312 | ev_time (void) |
… | |
… | |
107 | gettimeofday (&tv, 0); |
320 | gettimeofday (&tv, 0); |
108 | return tv.tv_sec + tv.tv_usec * 1e-6; |
321 | return tv.tv_sec + tv.tv_usec * 1e-6; |
109 | #endif |
322 | #endif |
110 | } |
323 | } |
111 | |
324 | |
112 | static ev_tstamp |
325 | inline ev_tstamp |
113 | get_clock (void) |
326 | get_clock (void) |
114 | { |
327 | { |
115 | #if EV_USE_MONOTONIC |
328 | #if EV_USE_MONOTONIC |
116 | if (have_monotonic) |
329 | if (expect_true (have_monotonic)) |
117 | { |
330 | { |
118 | struct timespec ts; |
331 | struct timespec ts; |
119 | clock_gettime (CLOCK_MONOTONIC, &ts); |
332 | clock_gettime (CLOCK_MONOTONIC, &ts); |
120 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
333 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
121 | } |
334 | } |
122 | #endif |
335 | #endif |
123 | |
336 | |
124 | return ev_time (); |
337 | return ev_time (); |
125 | } |
338 | } |
126 | |
339 | |
|
|
340 | #if EV_MULTIPLICITY |
|
|
341 | ev_tstamp |
|
|
342 | ev_now (EV_P) |
|
|
343 | { |
|
|
344 | return ev_rt_now; |
|
|
345 | } |
|
|
346 | #endif |
|
|
347 | |
127 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
128 | |
349 | |
129 | #define array_needsize(base,cur,cnt,init) \ |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
130 | if ((cnt) > cur) \ |
351 | if (expect_false ((cnt) > cur)) \ |
131 | { \ |
352 | { \ |
132 | int newcnt = cur; \ |
353 | int newcnt = cur; \ |
133 | do \ |
354 | do \ |
134 | { \ |
355 | { \ |
135 | newcnt = array_roundsize (base, newcnt << 1); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
136 | } \ |
357 | } \ |
137 | while ((cnt) > newcnt); \ |
358 | while ((cnt) > newcnt); \ |
138 | \ |
359 | \ |
139 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
360 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
140 | init (base + cur, newcnt - cur); \ |
361 | init (base + cur, newcnt - cur); \ |
141 | cur = newcnt; \ |
362 | cur = newcnt; \ |
142 | } |
363 | } |
|
|
364 | |
|
|
365 | #define array_slim(type,stem) \ |
|
|
366 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
367 | { \ |
|
|
368 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
369 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
370 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
371 | } |
|
|
372 | |
|
|
373 | #define array_free(stem, idx) \ |
|
|
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
143 | |
375 | |
144 | /*****************************************************************************/ |
376 | /*****************************************************************************/ |
145 | |
|
|
146 | typedef struct |
|
|
147 | { |
|
|
148 | struct ev_io *head; |
|
|
149 | unsigned char events; |
|
|
150 | unsigned char reify; |
|
|
151 | } ANFD; |
|
|
152 | |
|
|
153 | static ANFD *anfds; |
|
|
154 | static int anfdmax; |
|
|
155 | |
377 | |
156 | static void |
378 | static void |
157 | anfds_init (ANFD *base, int count) |
379 | anfds_init (ANFD *base, int count) |
158 | { |
380 | { |
159 | while (count--) |
381 | while (count--) |
… | |
… | |
164 | |
386 | |
165 | ++base; |
387 | ++base; |
166 | } |
388 | } |
167 | } |
389 | } |
168 | |
390 | |
169 | typedef struct |
391 | void |
|
|
392 | ev_feed_event (EV_P_ void *w, int revents) |
170 | { |
393 | { |
171 | W w; |
394 | W w_ = (W)w; |
172 | int events; |
|
|
173 | } ANPENDING; |
|
|
174 | |
395 | |
175 | static ANPENDING *pendings; |
396 | if (expect_false (w_->pending)) |
176 | static int pendingmax, pendingcnt; |
|
|
177 | |
|
|
178 | static void |
|
|
179 | event (W w, int events) |
|
|
180 | { |
|
|
181 | if (w->pending) |
|
|
182 | { |
397 | { |
183 | pendings [w->pending - 1].events |= events; |
398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
184 | return; |
399 | return; |
185 | } |
400 | } |
186 | |
401 | |
187 | w->pending = ++pendingcnt; |
402 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
188 | array_needsize (pendings, pendingmax, pendingcnt, ); |
403 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
189 | pendings [pendingcnt - 1].w = w; |
404 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
190 | pendings [pendingcnt - 1].events = events; |
405 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
191 | } |
406 | } |
192 | |
407 | |
193 | static void |
408 | static void |
194 | queue_events (W *events, int eventcnt, int type) |
409 | queue_events (EV_P_ W *events, int eventcnt, int type) |
195 | { |
410 | { |
196 | int i; |
411 | int i; |
197 | |
412 | |
198 | for (i = 0; i < eventcnt; ++i) |
413 | for (i = 0; i < eventcnt; ++i) |
199 | event (events [i], type); |
414 | ev_feed_event (EV_A_ events [i], type); |
200 | } |
415 | } |
201 | |
416 | |
202 | static void |
417 | inline void |
203 | fd_event (int fd, int events) |
418 | fd_event (EV_P_ int fd, int revents) |
204 | { |
419 | { |
205 | ANFD *anfd = anfds + fd; |
420 | ANFD *anfd = anfds + fd; |
206 | struct ev_io *w; |
421 | ev_io *w; |
207 | |
422 | |
208 | for (w = anfd->head; w; w = w->next) |
423 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
209 | { |
424 | { |
210 | int ev = w->events & events; |
425 | int ev = w->events & revents; |
211 | |
426 | |
212 | if (ev) |
427 | if (ev) |
213 | event ((W)w, ev); |
428 | ev_feed_event (EV_A_ (W)w, ev); |
214 | } |
429 | } |
|
|
430 | } |
|
|
431 | |
|
|
432 | void |
|
|
433 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
434 | { |
|
|
435 | fd_event (EV_A_ fd, revents); |
215 | } |
436 | } |
216 | |
437 | |
217 | /*****************************************************************************/ |
438 | /*****************************************************************************/ |
218 | |
439 | |
219 | static int *fdchanges; |
440 | inline void |
220 | static int fdchangemax, fdchangecnt; |
441 | fd_reify (EV_P) |
221 | |
|
|
222 | static void |
|
|
223 | fd_reify (void) |
|
|
224 | { |
442 | { |
225 | int i; |
443 | int i; |
226 | |
444 | |
227 | for (i = 0; i < fdchangecnt; ++i) |
445 | for (i = 0; i < fdchangecnt; ++i) |
228 | { |
446 | { |
229 | int fd = fdchanges [i]; |
447 | int fd = fdchanges [i]; |
230 | ANFD *anfd = anfds + fd; |
448 | ANFD *anfd = anfds + fd; |
231 | struct ev_io *w; |
449 | ev_io *w; |
232 | |
450 | |
233 | int events = 0; |
451 | int events = 0; |
234 | |
452 | |
235 | for (w = anfd->head; w; w = w->next) |
453 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
236 | events |= w->events; |
454 | events |= w->events; |
237 | |
455 | |
|
|
456 | #if EV_SELECT_IS_WINSOCKET |
|
|
457 | if (events) |
|
|
458 | { |
|
|
459 | unsigned long argp; |
|
|
460 | anfd->handle = _get_osfhandle (fd); |
|
|
461 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
462 | } |
|
|
463 | #endif |
|
|
464 | |
238 | anfd->reify = 0; |
465 | anfd->reify = 0; |
239 | |
466 | |
240 | if (anfd->events != events) |
|
|
241 | { |
|
|
242 | method_modify (fd, anfd->events, events); |
467 | backend_modify (EV_A_ fd, anfd->events, events); |
243 | anfd->events = events; |
468 | anfd->events = events; |
244 | } |
|
|
245 | } |
469 | } |
246 | |
470 | |
247 | fdchangecnt = 0; |
471 | fdchangecnt = 0; |
248 | } |
472 | } |
249 | |
473 | |
250 | static void |
474 | static void |
251 | fd_change (int fd) |
475 | fd_change (EV_P_ int fd) |
252 | { |
476 | { |
253 | if (anfds [fd].reify || fdchangecnt < 0) |
477 | if (expect_false (anfds [fd].reify)) |
254 | return; |
478 | return; |
255 | |
479 | |
256 | anfds [fd].reify = 1; |
480 | anfds [fd].reify = 1; |
257 | |
481 | |
258 | ++fdchangecnt; |
482 | ++fdchangecnt; |
259 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
483 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
260 | fdchanges [fdchangecnt - 1] = fd; |
484 | fdchanges [fdchangecnt - 1] = fd; |
261 | } |
485 | } |
262 | |
486 | |
|
|
487 | static void |
|
|
488 | fd_kill (EV_P_ int fd) |
|
|
489 | { |
|
|
490 | ev_io *w; |
|
|
491 | |
|
|
492 | while ((w = (ev_io *)anfds [fd].head)) |
|
|
493 | { |
|
|
494 | ev_io_stop (EV_A_ w); |
|
|
495 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
496 | } |
|
|
497 | } |
|
|
498 | |
|
|
499 | inline int |
|
|
500 | fd_valid (int fd) |
|
|
501 | { |
|
|
502 | #ifdef _WIN32 |
|
|
503 | return _get_osfhandle (fd) != -1; |
|
|
504 | #else |
|
|
505 | return fcntl (fd, F_GETFD) != -1; |
|
|
506 | #endif |
|
|
507 | } |
|
|
508 | |
263 | /* called on EBADF to verify fds */ |
509 | /* called on EBADF to verify fds */ |
264 | static void |
510 | static void |
265 | fd_recheck (void) |
511 | fd_ebadf (EV_P) |
266 | { |
512 | { |
267 | int fd; |
513 | int fd; |
268 | |
514 | |
269 | for (fd = 0; fd < anfdmax; ++fd) |
515 | for (fd = 0; fd < anfdmax; ++fd) |
270 | if (anfds [fd].events) |
516 | if (anfds [fd].events) |
271 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
517 | if (!fd_valid (fd) == -1 && errno == EBADF) |
272 | while (anfds [fd].head) |
518 | fd_kill (EV_A_ fd); |
|
|
519 | } |
|
|
520 | |
|
|
521 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
522 | static void |
|
|
523 | fd_enomem (EV_P) |
|
|
524 | { |
|
|
525 | int fd; |
|
|
526 | |
|
|
527 | for (fd = anfdmax; fd--; ) |
|
|
528 | if (anfds [fd].events) |
273 | { |
529 | { |
274 | ev_io_stop (anfds [fd].head); |
530 | fd_kill (EV_A_ fd); |
275 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE); |
531 | return; |
276 | } |
532 | } |
|
|
533 | } |
|
|
534 | |
|
|
535 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
536 | static void |
|
|
537 | fd_rearm_all (EV_P) |
|
|
538 | { |
|
|
539 | int fd; |
|
|
540 | |
|
|
541 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
542 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
543 | if (anfds [fd].events) |
|
|
544 | { |
|
|
545 | anfds [fd].events = 0; |
|
|
546 | fd_change (EV_A_ fd); |
|
|
547 | } |
277 | } |
548 | } |
278 | |
549 | |
279 | /*****************************************************************************/ |
550 | /*****************************************************************************/ |
280 | |
551 | |
281 | static struct ev_timer **timers; |
|
|
282 | static int timermax, timercnt; |
|
|
283 | |
|
|
284 | static struct ev_periodic **periodics; |
|
|
285 | static int periodicmax, periodiccnt; |
|
|
286 | |
|
|
287 | static void |
552 | static void |
288 | upheap (WT *timers, int k) |
553 | upheap (WT *heap, int k) |
289 | { |
554 | { |
290 | WT w = timers [k]; |
555 | WT w = heap [k]; |
291 | |
556 | |
292 | while (k && timers [k >> 1]->at > w->at) |
557 | while (k && heap [k >> 1]->at > w->at) |
293 | { |
558 | { |
294 | timers [k] = timers [k >> 1]; |
559 | heap [k] = heap [k >> 1]; |
295 | timers [k]->active = k + 1; |
560 | ((W)heap [k])->active = k + 1; |
296 | k >>= 1; |
561 | k >>= 1; |
297 | } |
562 | } |
298 | |
563 | |
299 | timers [k] = w; |
564 | heap [k] = w; |
300 | timers [k]->active = k + 1; |
565 | ((W)heap [k])->active = k + 1; |
301 | |
566 | |
302 | } |
567 | } |
303 | |
568 | |
304 | static void |
569 | static void |
305 | downheap (WT *timers, int N, int k) |
570 | downheap (WT *heap, int N, int k) |
306 | { |
571 | { |
307 | WT w = timers [k]; |
572 | WT w = heap [k]; |
308 | |
573 | |
309 | while (k < (N >> 1)) |
574 | while (k < (N >> 1)) |
310 | { |
575 | { |
311 | int j = k << 1; |
576 | int j = k << 1; |
312 | |
577 | |
313 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
578 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
314 | ++j; |
579 | ++j; |
315 | |
580 | |
316 | if (w->at <= timers [j]->at) |
581 | if (w->at <= heap [j]->at) |
317 | break; |
582 | break; |
318 | |
583 | |
319 | timers [k] = timers [j]; |
584 | heap [k] = heap [j]; |
320 | timers [k]->active = k + 1; |
585 | ((W)heap [k])->active = k + 1; |
321 | k = j; |
586 | k = j; |
322 | } |
587 | } |
323 | |
588 | |
324 | timers [k] = w; |
589 | heap [k] = w; |
325 | timers [k]->active = k + 1; |
590 | ((W)heap [k])->active = k + 1; |
|
|
591 | } |
|
|
592 | |
|
|
593 | inline void |
|
|
594 | adjustheap (WT *heap, int N, int k) |
|
|
595 | { |
|
|
596 | upheap (heap, k); |
|
|
597 | downheap (heap, N, k); |
326 | } |
598 | } |
327 | |
599 | |
328 | /*****************************************************************************/ |
600 | /*****************************************************************************/ |
329 | |
601 | |
330 | typedef struct |
602 | typedef struct |
331 | { |
603 | { |
332 | struct ev_signal *head; |
604 | WL head; |
333 | sig_atomic_t volatile gotsig; |
605 | sig_atomic_t volatile gotsig; |
334 | } ANSIG; |
606 | } ANSIG; |
335 | |
607 | |
336 | static ANSIG *signals; |
608 | static ANSIG *signals; |
337 | static int signalmax; |
609 | static int signalmax; |
338 | |
610 | |
339 | static int sigpipe [2]; |
611 | static int sigpipe [2]; |
340 | static sig_atomic_t volatile gotsig; |
612 | static sig_atomic_t volatile gotsig; |
341 | static struct ev_io sigev; |
613 | static ev_io sigev; |
342 | |
614 | |
343 | static void |
615 | static void |
344 | signals_init (ANSIG *base, int count) |
616 | signals_init (ANSIG *base, int count) |
345 | { |
617 | { |
346 | while (count--) |
618 | while (count--) |
… | |
… | |
353 | } |
625 | } |
354 | |
626 | |
355 | static void |
627 | static void |
356 | sighandler (int signum) |
628 | sighandler (int signum) |
357 | { |
629 | { |
|
|
630 | #if _WIN32 |
|
|
631 | signal (signum, sighandler); |
|
|
632 | #endif |
|
|
633 | |
358 | signals [signum - 1].gotsig = 1; |
634 | signals [signum - 1].gotsig = 1; |
359 | |
635 | |
360 | if (!gotsig) |
636 | if (!gotsig) |
361 | { |
637 | { |
|
|
638 | int old_errno = errno; |
362 | gotsig = 1; |
639 | gotsig = 1; |
363 | write (sigpipe [1], &signum, 1); |
640 | write (sigpipe [1], &signum, 1); |
|
|
641 | errno = old_errno; |
364 | } |
642 | } |
365 | } |
643 | } |
366 | |
644 | |
|
|
645 | void |
|
|
646 | ev_feed_signal_event (EV_P_ int signum) |
|
|
647 | { |
|
|
648 | WL w; |
|
|
649 | |
|
|
650 | #if EV_MULTIPLICITY |
|
|
651 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
652 | #endif |
|
|
653 | |
|
|
654 | --signum; |
|
|
655 | |
|
|
656 | if (signum < 0 || signum >= signalmax) |
|
|
657 | return; |
|
|
658 | |
|
|
659 | signals [signum].gotsig = 0; |
|
|
660 | |
|
|
661 | for (w = signals [signum].head; w; w = w->next) |
|
|
662 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
663 | } |
|
|
664 | |
367 | static void |
665 | static void |
368 | sigcb (struct ev_io *iow, int revents) |
666 | sigcb (EV_P_ ev_io *iow, int revents) |
369 | { |
667 | { |
370 | struct ev_signal *w; |
|
|
371 | int sig; |
668 | int signum; |
372 | |
669 | |
373 | read (sigpipe [0], &revents, 1); |
670 | read (sigpipe [0], &revents, 1); |
374 | gotsig = 0; |
671 | gotsig = 0; |
375 | |
672 | |
376 | for (sig = signalmax; sig--; ) |
673 | for (signum = signalmax; signum--; ) |
377 | if (signals [sig].gotsig) |
674 | if (signals [signum].gotsig) |
378 | { |
675 | ev_feed_signal_event (EV_A_ signum + 1); |
379 | signals [sig].gotsig = 0; |
|
|
380 | |
|
|
381 | for (w = signals [sig].head; w; w = w->next) |
|
|
382 | event ((W)w, EV_SIGNAL); |
|
|
383 | } |
|
|
384 | } |
676 | } |
385 | |
677 | |
386 | static void |
678 | static void |
387 | siginit (void) |
679 | fd_intern (int fd) |
388 | { |
680 | { |
|
|
681 | #ifdef _WIN32 |
|
|
682 | int arg = 1; |
|
|
683 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
684 | #else |
389 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
685 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
390 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
391 | |
|
|
392 | /* rather than sort out wether we really need nb, set it */ |
|
|
393 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
686 | fcntl (fd, F_SETFL, O_NONBLOCK); |
394 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
687 | #endif |
|
|
688 | } |
|
|
689 | |
|
|
690 | static void |
|
|
691 | siginit (EV_P) |
|
|
692 | { |
|
|
693 | fd_intern (sigpipe [0]); |
|
|
694 | fd_intern (sigpipe [1]); |
395 | |
695 | |
396 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
696 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
397 | ev_io_start (&sigev); |
697 | ev_io_start (EV_A_ &sigev); |
|
|
698 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
398 | } |
699 | } |
399 | |
700 | |
400 | /*****************************************************************************/ |
701 | /*****************************************************************************/ |
401 | |
702 | |
402 | static struct ev_idle **idles; |
|
|
403 | static int idlemax, idlecnt; |
|
|
404 | |
|
|
405 | static struct ev_prepare **prepares; |
|
|
406 | static int preparemax, preparecnt; |
|
|
407 | |
|
|
408 | static struct ev_check **checks; |
|
|
409 | static int checkmax, checkcnt; |
|
|
410 | |
|
|
411 | /*****************************************************************************/ |
|
|
412 | |
|
|
413 | static struct ev_child *childs [PID_HASHSIZE]; |
703 | static ev_child *childs [PID_HASHSIZE]; |
|
|
704 | |
|
|
705 | #ifndef _WIN32 |
|
|
706 | |
414 | static struct ev_signal childev; |
707 | static ev_signal childev; |
415 | |
708 | |
416 | #ifndef WCONTINUED |
709 | #ifndef WCONTINUED |
417 | # define WCONTINUED 0 |
710 | # define WCONTINUED 0 |
418 | #endif |
711 | #endif |
419 | |
712 | |
420 | static void |
713 | static void |
|
|
714 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
715 | { |
|
|
716 | ev_child *w; |
|
|
717 | |
|
|
718 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
719 | if (w->pid == pid || !w->pid) |
|
|
720 | { |
|
|
721 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
722 | w->rpid = pid; |
|
|
723 | w->rstatus = status; |
|
|
724 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
725 | } |
|
|
726 | } |
|
|
727 | |
|
|
728 | static void |
421 | childcb (struct ev_signal *sw, int revents) |
729 | childcb (EV_P_ ev_signal *sw, int revents) |
422 | { |
730 | { |
423 | struct ev_child *w; |
|
|
424 | int pid, status; |
731 | int pid, status; |
425 | |
732 | |
426 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
733 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
427 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
734 | { |
428 | if (w->pid == pid || w->pid == -1) |
735 | /* make sure we are called again until all childs have been reaped */ |
429 | { |
736 | /* we need to do it this way so that the callback gets called before we continue */ |
430 | w->status = status; |
737 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
431 | event ((W)w, EV_CHILD); |
738 | |
432 | } |
739 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
740 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
|
|
741 | } |
433 | } |
742 | } |
|
|
743 | |
|
|
744 | #endif |
434 | |
745 | |
435 | /*****************************************************************************/ |
746 | /*****************************************************************************/ |
436 | |
747 | |
|
|
748 | #if EV_USE_PORT |
|
|
749 | # include "ev_port.c" |
|
|
750 | #endif |
|
|
751 | #if EV_USE_KQUEUE |
|
|
752 | # include "ev_kqueue.c" |
|
|
753 | #endif |
437 | #if EV_USE_EPOLL |
754 | #if EV_USE_EPOLL |
438 | # include "ev_epoll.c" |
755 | # include "ev_epoll.c" |
439 | #endif |
756 | #endif |
|
|
757 | #if EV_USE_POLL |
|
|
758 | # include "ev_poll.c" |
|
|
759 | #endif |
440 | #if EV_USE_SELECT |
760 | #if EV_USE_SELECT |
441 | # include "ev_select.c" |
761 | # include "ev_select.c" |
442 | #endif |
762 | #endif |
443 | |
763 | |
444 | int |
764 | int |
… | |
… | |
451 | ev_version_minor (void) |
771 | ev_version_minor (void) |
452 | { |
772 | { |
453 | return EV_VERSION_MINOR; |
773 | return EV_VERSION_MINOR; |
454 | } |
774 | } |
455 | |
775 | |
456 | int ev_init (int flags) |
776 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
777 | static int |
|
|
778 | enable_secure (void) |
457 | { |
779 | { |
458 | if (!ev_method) |
780 | #ifdef _WIN32 |
|
|
781 | return 0; |
|
|
782 | #else |
|
|
783 | return getuid () != geteuid () |
|
|
784 | || getgid () != getegid (); |
|
|
785 | #endif |
|
|
786 | } |
|
|
787 | |
|
|
788 | unsigned int |
|
|
789 | ev_supported_backends (void) |
|
|
790 | { |
|
|
791 | unsigned int flags = 0; |
|
|
792 | |
|
|
793 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
794 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
795 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
796 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
797 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
798 | |
|
|
799 | return flags; |
|
|
800 | } |
|
|
801 | |
|
|
802 | unsigned int |
|
|
803 | ev_recommended_backends (void) |
|
|
804 | { |
|
|
805 | unsigned int flags = ev_supported_backends (); |
|
|
806 | |
|
|
807 | #ifndef __NetBSD__ |
|
|
808 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
809 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
810 | flags &= ~EVBACKEND_KQUEUE; |
|
|
811 | #endif |
|
|
812 | #ifdef __APPLE__ |
|
|
813 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
814 | flags &= ~EVBACKEND_POLL; |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | return flags; |
|
|
818 | } |
|
|
819 | |
|
|
820 | unsigned int |
|
|
821 | ev_embeddable_backends (void) |
|
|
822 | { |
|
|
823 | return EVBACKEND_EPOLL |
|
|
824 | | EVBACKEND_KQUEUE |
|
|
825 | | EVBACKEND_PORT; |
|
|
826 | } |
|
|
827 | |
|
|
828 | unsigned int |
|
|
829 | ev_backend (EV_P) |
|
|
830 | { |
|
|
831 | return backend; |
|
|
832 | } |
|
|
833 | |
|
|
834 | static void |
|
|
835 | loop_init (EV_P_ unsigned int flags) |
|
|
836 | { |
|
|
837 | if (!backend) |
459 | { |
838 | { |
460 | #if EV_USE_MONOTONIC |
839 | #if EV_USE_MONOTONIC |
461 | { |
840 | { |
462 | struct timespec ts; |
841 | struct timespec ts; |
463 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
842 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
464 | have_monotonic = 1; |
843 | have_monotonic = 1; |
465 | } |
844 | } |
466 | #endif |
845 | #endif |
467 | |
846 | |
468 | ev_now = ev_time (); |
847 | ev_rt_now = ev_time (); |
469 | now = get_clock (); |
848 | mn_now = get_clock (); |
|
|
849 | now_floor = mn_now; |
470 | diff = ev_now - now; |
850 | rtmn_diff = ev_rt_now - mn_now; |
471 | |
851 | |
472 | if (pipe (sigpipe)) |
852 | if (!(flags & EVFLAG_NOENV) |
473 | return 0; |
853 | && !enable_secure () |
|
|
854 | && getenv ("LIBEV_FLAGS")) |
|
|
855 | flags = atoi (getenv ("LIBEV_FLAGS")); |
474 | |
856 | |
475 | ev_method = EVMETHOD_NONE; |
857 | if (!(flags & 0x0000ffffUL)) |
|
|
858 | flags |= ev_recommended_backends (); |
|
|
859 | |
|
|
860 | backend = 0; |
|
|
861 | #if EV_USE_PORT |
|
|
862 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
863 | #endif |
|
|
864 | #if EV_USE_KQUEUE |
|
|
865 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
866 | #endif |
476 | #if EV_USE_EPOLL |
867 | #if EV_USE_EPOLL |
477 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
868 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
869 | #endif |
|
|
870 | #if EV_USE_POLL |
|
|
871 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
478 | #endif |
872 | #endif |
479 | #if EV_USE_SELECT |
873 | #if EV_USE_SELECT |
480 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
874 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
481 | #endif |
875 | #endif |
482 | |
876 | |
483 | if (ev_method) |
877 | ev_init (&sigev, sigcb); |
|
|
878 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
879 | } |
|
|
880 | } |
|
|
881 | |
|
|
882 | static void |
|
|
883 | loop_destroy (EV_P) |
|
|
884 | { |
|
|
885 | int i; |
|
|
886 | |
|
|
887 | #if EV_USE_PORT |
|
|
888 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
889 | #endif |
|
|
890 | #if EV_USE_KQUEUE |
|
|
891 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
892 | #endif |
|
|
893 | #if EV_USE_EPOLL |
|
|
894 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
895 | #endif |
|
|
896 | #if EV_USE_POLL |
|
|
897 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
898 | #endif |
|
|
899 | #if EV_USE_SELECT |
|
|
900 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
901 | #endif |
|
|
902 | |
|
|
903 | for (i = NUMPRI; i--; ) |
|
|
904 | array_free (pending, [i]); |
|
|
905 | |
|
|
906 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
907 | array_free (fdchange, EMPTY0); |
|
|
908 | array_free (timer, EMPTY0); |
|
|
909 | #if EV_PERIODICS |
|
|
910 | array_free (periodic, EMPTY0); |
|
|
911 | #endif |
|
|
912 | array_free (idle, EMPTY0); |
|
|
913 | array_free (prepare, EMPTY0); |
|
|
914 | array_free (check, EMPTY0); |
|
|
915 | |
|
|
916 | backend = 0; |
|
|
917 | } |
|
|
918 | |
|
|
919 | static void |
|
|
920 | loop_fork (EV_P) |
|
|
921 | { |
|
|
922 | #if EV_USE_PORT |
|
|
923 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
924 | #endif |
|
|
925 | #if EV_USE_KQUEUE |
|
|
926 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
927 | #endif |
|
|
928 | #if EV_USE_EPOLL |
|
|
929 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
930 | #endif |
|
|
931 | |
|
|
932 | if (ev_is_active (&sigev)) |
|
|
933 | { |
|
|
934 | /* default loop */ |
|
|
935 | |
|
|
936 | ev_ref (EV_A); |
|
|
937 | ev_io_stop (EV_A_ &sigev); |
|
|
938 | close (sigpipe [0]); |
|
|
939 | close (sigpipe [1]); |
|
|
940 | |
|
|
941 | while (pipe (sigpipe)) |
|
|
942 | syserr ("(libev) error creating pipe"); |
|
|
943 | |
|
|
944 | siginit (EV_A); |
|
|
945 | } |
|
|
946 | |
|
|
947 | postfork = 0; |
|
|
948 | } |
|
|
949 | |
|
|
950 | #if EV_MULTIPLICITY |
|
|
951 | struct ev_loop * |
|
|
952 | ev_loop_new (unsigned int flags) |
|
|
953 | { |
|
|
954 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
955 | |
|
|
956 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
957 | |
|
|
958 | loop_init (EV_A_ flags); |
|
|
959 | |
|
|
960 | if (ev_backend (EV_A)) |
|
|
961 | return loop; |
|
|
962 | |
|
|
963 | return 0; |
|
|
964 | } |
|
|
965 | |
|
|
966 | void |
|
|
967 | ev_loop_destroy (EV_P) |
|
|
968 | { |
|
|
969 | loop_destroy (EV_A); |
|
|
970 | ev_free (loop); |
|
|
971 | } |
|
|
972 | |
|
|
973 | void |
|
|
974 | ev_loop_fork (EV_P) |
|
|
975 | { |
|
|
976 | postfork = 1; |
|
|
977 | } |
|
|
978 | |
|
|
979 | #endif |
|
|
980 | |
|
|
981 | #if EV_MULTIPLICITY |
|
|
982 | struct ev_loop * |
|
|
983 | ev_default_loop_init (unsigned int flags) |
|
|
984 | #else |
|
|
985 | int |
|
|
986 | ev_default_loop (unsigned int flags) |
|
|
987 | #endif |
|
|
988 | { |
|
|
989 | if (sigpipe [0] == sigpipe [1]) |
|
|
990 | if (pipe (sigpipe)) |
|
|
991 | return 0; |
|
|
992 | |
|
|
993 | if (!ev_default_loop_ptr) |
|
|
994 | { |
|
|
995 | #if EV_MULTIPLICITY |
|
|
996 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
997 | #else |
|
|
998 | ev_default_loop_ptr = 1; |
|
|
999 | #endif |
|
|
1000 | |
|
|
1001 | loop_init (EV_A_ flags); |
|
|
1002 | |
|
|
1003 | if (ev_backend (EV_A)) |
484 | { |
1004 | { |
485 | ev_watcher_init (&sigev, sigcb); |
|
|
486 | siginit (); |
1005 | siginit (EV_A); |
487 | |
1006 | |
|
|
1007 | #ifndef _WIN32 |
488 | ev_signal_init (&childev, childcb, SIGCHLD); |
1008 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1009 | ev_set_priority (&childev, EV_MAXPRI); |
489 | ev_signal_start (&childev); |
1010 | ev_signal_start (EV_A_ &childev); |
|
|
1011 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1012 | #endif |
490 | } |
1013 | } |
|
|
1014 | else |
|
|
1015 | ev_default_loop_ptr = 0; |
491 | } |
1016 | } |
492 | |
1017 | |
493 | return ev_method; |
1018 | return ev_default_loop_ptr; |
|
|
1019 | } |
|
|
1020 | |
|
|
1021 | void |
|
|
1022 | ev_default_destroy (void) |
|
|
1023 | { |
|
|
1024 | #if EV_MULTIPLICITY |
|
|
1025 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1026 | #endif |
|
|
1027 | |
|
|
1028 | #ifndef _WIN32 |
|
|
1029 | ev_ref (EV_A); /* child watcher */ |
|
|
1030 | ev_signal_stop (EV_A_ &childev); |
|
|
1031 | #endif |
|
|
1032 | |
|
|
1033 | ev_ref (EV_A); /* signal watcher */ |
|
|
1034 | ev_io_stop (EV_A_ &sigev); |
|
|
1035 | |
|
|
1036 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1037 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1038 | |
|
|
1039 | loop_destroy (EV_A); |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | void |
|
|
1043 | ev_default_fork (void) |
|
|
1044 | { |
|
|
1045 | #if EV_MULTIPLICITY |
|
|
1046 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1047 | #endif |
|
|
1048 | |
|
|
1049 | if (backend) |
|
|
1050 | postfork = 1; |
494 | } |
1051 | } |
495 | |
1052 | |
496 | /*****************************************************************************/ |
1053 | /*****************************************************************************/ |
497 | |
1054 | |
498 | void |
|
|
499 | ev_fork_prepare (void) |
|
|
500 | { |
|
|
501 | /* nop */ |
|
|
502 | } |
|
|
503 | |
|
|
504 | void |
|
|
505 | ev_fork_parent (void) |
|
|
506 | { |
|
|
507 | /* nop */ |
|
|
508 | } |
|
|
509 | |
|
|
510 | void |
|
|
511 | ev_fork_child (void) |
|
|
512 | { |
|
|
513 | #if EV_USE_EPOLL |
|
|
514 | if (ev_method == EVMETHOD_EPOLL) |
|
|
515 | epoll_postfork_child (); |
|
|
516 | #endif |
|
|
517 | |
|
|
518 | ev_io_stop (&sigev); |
|
|
519 | close (sigpipe [0]); |
|
|
520 | close (sigpipe [1]); |
|
|
521 | pipe (sigpipe); |
|
|
522 | siginit (); |
|
|
523 | } |
|
|
524 | |
|
|
525 | /*****************************************************************************/ |
|
|
526 | |
|
|
527 | static void |
1055 | static int |
|
|
1056 | any_pending (EV_P) |
|
|
1057 | { |
|
|
1058 | int pri; |
|
|
1059 | |
|
|
1060 | for (pri = NUMPRI; pri--; ) |
|
|
1061 | if (pendingcnt [pri]) |
|
|
1062 | return 1; |
|
|
1063 | |
|
|
1064 | return 0; |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | inline void |
528 | call_pending (void) |
1068 | call_pending (EV_P) |
529 | { |
1069 | { |
|
|
1070 | int pri; |
|
|
1071 | |
|
|
1072 | for (pri = NUMPRI; pri--; ) |
530 | while (pendingcnt) |
1073 | while (pendingcnt [pri]) |
531 | { |
1074 | { |
532 | ANPENDING *p = pendings + --pendingcnt; |
1075 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
533 | |
1076 | |
534 | if (p->w) |
1077 | if (expect_true (p->w)) |
535 | { |
1078 | { |
|
|
1079 | assert (("non-pending watcher on pending list", p->w->pending)); |
|
|
1080 | |
536 | p->w->pending = 0; |
1081 | p->w->pending = 0; |
537 | p->w->cb (p->w, p->events); |
1082 | EV_CB_INVOKE (p->w, p->events); |
538 | } |
1083 | } |
539 | } |
1084 | } |
540 | } |
1085 | } |
541 | |
1086 | |
542 | static void |
1087 | inline void |
543 | timers_reify (void) |
1088 | timers_reify (EV_P) |
544 | { |
1089 | { |
545 | while (timercnt && timers [0]->at <= now) |
1090 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
546 | { |
1091 | { |
547 | struct ev_timer *w = timers [0]; |
1092 | ev_timer *w = timers [0]; |
|
|
1093 | |
|
|
1094 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
548 | |
1095 | |
549 | /* first reschedule or stop timer */ |
1096 | /* first reschedule or stop timer */ |
550 | if (w->repeat) |
1097 | if (w->repeat) |
551 | { |
1098 | { |
552 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1099 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1100 | |
553 | w->at = now + w->repeat; |
1101 | ((WT)w)->at += w->repeat; |
|
|
1102 | if (((WT)w)->at < mn_now) |
|
|
1103 | ((WT)w)->at = mn_now; |
|
|
1104 | |
554 | downheap ((WT *)timers, timercnt, 0); |
1105 | downheap ((WT *)timers, timercnt, 0); |
555 | } |
1106 | } |
556 | else |
1107 | else |
557 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1108 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
558 | |
1109 | |
559 | event ((W)w, EV_TIMEOUT); |
1110 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
560 | } |
1111 | } |
561 | } |
1112 | } |
562 | |
1113 | |
563 | static void |
1114 | #if EV_PERIODICS |
|
|
1115 | inline void |
564 | periodics_reify (void) |
1116 | periodics_reify (EV_P) |
565 | { |
1117 | { |
566 | while (periodiccnt && periodics [0]->at <= ev_now) |
1118 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
567 | { |
1119 | { |
568 | struct ev_periodic *w = periodics [0]; |
1120 | ev_periodic *w = periodics [0]; |
|
|
1121 | |
|
|
1122 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
569 | |
1123 | |
570 | /* first reschedule or stop timer */ |
1124 | /* first reschedule or stop timer */ |
571 | if (w->interval) |
1125 | if (w->reschedule_cb) |
572 | { |
1126 | { |
|
|
1127 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1128 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1129 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1130 | } |
|
|
1131 | else if (w->interval) |
|
|
1132 | { |
573 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1133 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
574 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1134 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
575 | downheap ((WT *)periodics, periodiccnt, 0); |
1135 | downheap ((WT *)periodics, periodiccnt, 0); |
576 | } |
1136 | } |
577 | else |
1137 | else |
578 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1138 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
579 | |
1139 | |
580 | event ((W)w, EV_PERIODIC); |
1140 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
581 | } |
1141 | } |
582 | } |
1142 | } |
583 | |
1143 | |
584 | static void |
1144 | static void |
585 | periodics_reschedule (ev_tstamp diff) |
1145 | periodics_reschedule (EV_P) |
586 | { |
1146 | { |
587 | int i; |
1147 | int i; |
588 | |
1148 | |
589 | /* adjust periodics after time jump */ |
1149 | /* adjust periodics after time jump */ |
590 | for (i = 0; i < periodiccnt; ++i) |
1150 | for (i = 0; i < periodiccnt; ++i) |
591 | { |
1151 | { |
592 | struct ev_periodic *w = periodics [i]; |
1152 | ev_periodic *w = periodics [i]; |
593 | |
1153 | |
|
|
1154 | if (w->reschedule_cb) |
|
|
1155 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
594 | if (w->interval) |
1156 | else if (w->interval) |
|
|
1157 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1158 | } |
|
|
1159 | |
|
|
1160 | /* now rebuild the heap */ |
|
|
1161 | for (i = periodiccnt >> 1; i--; ) |
|
|
1162 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1163 | } |
|
|
1164 | #endif |
|
|
1165 | |
|
|
1166 | inline int |
|
|
1167 | time_update_monotonic (EV_P) |
|
|
1168 | { |
|
|
1169 | mn_now = get_clock (); |
|
|
1170 | |
|
|
1171 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1172 | { |
|
|
1173 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1174 | return 0; |
|
|
1175 | } |
|
|
1176 | else |
|
|
1177 | { |
|
|
1178 | now_floor = mn_now; |
|
|
1179 | ev_rt_now = ev_time (); |
|
|
1180 | return 1; |
|
|
1181 | } |
|
|
1182 | } |
|
|
1183 | |
|
|
1184 | inline void |
|
|
1185 | time_update (EV_P) |
|
|
1186 | { |
|
|
1187 | int i; |
|
|
1188 | |
|
|
1189 | #if EV_USE_MONOTONIC |
|
|
1190 | if (expect_true (have_monotonic)) |
|
|
1191 | { |
|
|
1192 | if (time_update_monotonic (EV_A)) |
595 | { |
1193 | { |
596 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1194 | ev_tstamp odiff = rtmn_diff; |
597 | |
1195 | |
598 | if (fabs (diff) >= 1e-4) |
1196 | /* loop a few times, before making important decisions. |
|
|
1197 | * on the choice of "4": one iteration isn't enough, |
|
|
1198 | * in case we get preempted during the calls to |
|
|
1199 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1200 | * to succeed in that case, though. and looping a few more times |
|
|
1201 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1202 | * in the unlikely event of getting preempted here. |
|
|
1203 | */ |
|
|
1204 | for (i = 4; --i; ) |
599 | { |
1205 | { |
600 | ev_periodic_stop (w); |
1206 | rtmn_diff = ev_rt_now - mn_now; |
601 | ev_periodic_start (w); |
|
|
602 | |
1207 | |
603 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
1208 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
|
|
1209 | return; /* all is well */ |
|
|
1210 | |
|
|
1211 | ev_rt_now = ev_time (); |
|
|
1212 | mn_now = get_clock (); |
|
|
1213 | now_floor = mn_now; |
604 | } |
1214 | } |
|
|
1215 | |
|
|
1216 | # if EV_PERIODICS |
|
|
1217 | periodics_reschedule (EV_A); |
|
|
1218 | # endif |
|
|
1219 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1220 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
605 | } |
1221 | } |
606 | } |
1222 | } |
607 | } |
1223 | else |
608 | |
1224 | #endif |
609 | static void |
1225 | { |
610 | time_update (void) |
|
|
611 | { |
|
|
612 | int i; |
|
|
613 | |
|
|
614 | ev_now = ev_time (); |
1226 | ev_rt_now = ev_time (); |
615 | |
1227 | |
616 | if (have_monotonic) |
1228 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
617 | { |
|
|
618 | ev_tstamp odiff = diff; |
|
|
619 | |
|
|
620 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
621 | { |
1229 | { |
622 | now = get_clock (); |
1230 | #if EV_PERIODICS |
623 | diff = ev_now - now; |
|
|
624 | |
|
|
625 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
626 | return; /* all is well */ |
|
|
627 | |
|
|
628 | ev_now = ev_time (); |
|
|
629 | } |
|
|
630 | |
|
|
631 | periodics_reschedule (diff - odiff); |
|
|
632 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
633 | } |
|
|
634 | else |
|
|
635 | { |
|
|
636 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
|
|
637 | { |
|
|
638 | periodics_reschedule (ev_now - now); |
1231 | periodics_reschedule (EV_A); |
|
|
1232 | #endif |
639 | |
1233 | |
640 | /* adjust timers. this is easy, as the offset is the same for all */ |
1234 | /* adjust timers. this is easy, as the offset is the same for all */ |
641 | for (i = 0; i < timercnt; ++i) |
1235 | for (i = 0; i < timercnt; ++i) |
642 | timers [i]->at += diff; |
1236 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
643 | } |
1237 | } |
644 | |
1238 | |
645 | now = ev_now; |
1239 | mn_now = ev_rt_now; |
646 | } |
1240 | } |
647 | } |
1241 | } |
648 | |
1242 | |
649 | int ev_loop_done; |
1243 | void |
|
|
1244 | ev_ref (EV_P) |
|
|
1245 | { |
|
|
1246 | ++activecnt; |
|
|
1247 | } |
650 | |
1248 | |
|
|
1249 | void |
|
|
1250 | ev_unref (EV_P) |
|
|
1251 | { |
|
|
1252 | --activecnt; |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | static int loop_done; |
|
|
1256 | |
|
|
1257 | void |
651 | void ev_loop (int flags) |
1258 | ev_loop (EV_P_ int flags) |
652 | { |
1259 | { |
653 | double block; |
|
|
654 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1260 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1261 | ? EVUNLOOP_ONE |
|
|
1262 | : EVUNLOOP_CANCEL; |
655 | |
1263 | |
656 | do |
1264 | while (activecnt) |
657 | { |
1265 | { |
658 | /* queue check watchers (and execute them) */ |
1266 | /* queue check watchers (and execute them) */ |
659 | if (preparecnt) |
1267 | if (expect_false (preparecnt)) |
660 | { |
1268 | { |
661 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1269 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
662 | call_pending (); |
1270 | call_pending (EV_A); |
663 | } |
1271 | } |
664 | |
1272 | |
|
|
1273 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1274 | if (expect_false (postfork)) |
|
|
1275 | loop_fork (EV_A); |
|
|
1276 | |
665 | /* update fd-related kernel structures */ |
1277 | /* update fd-related kernel structures */ |
666 | fd_reify (); |
1278 | fd_reify (EV_A); |
667 | |
1279 | |
668 | /* calculate blocking time */ |
1280 | /* calculate blocking time */ |
|
|
1281 | { |
|
|
1282 | double block; |
669 | |
1283 | |
670 | /* we only need this for !monotonic clockor timers, but as we basically |
|
|
671 | always have timers, we just calculate it always */ |
|
|
672 | ev_now = ev_time (); |
|
|
673 | |
|
|
674 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1284 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
675 | block = 0.; |
1285 | block = 0.; /* do not block at all */ |
676 | else |
1286 | else |
677 | { |
1287 | { |
|
|
1288 | /* update time to cancel out callback processing overhead */ |
|
|
1289 | #if EV_USE_MONOTONIC |
|
|
1290 | if (expect_true (have_monotonic)) |
|
|
1291 | time_update_monotonic (EV_A); |
|
|
1292 | else |
|
|
1293 | #endif |
|
|
1294 | { |
|
|
1295 | ev_rt_now = ev_time (); |
|
|
1296 | mn_now = ev_rt_now; |
|
|
1297 | } |
|
|
1298 | |
678 | block = MAX_BLOCKTIME; |
1299 | block = MAX_BLOCKTIME; |
679 | |
1300 | |
680 | if (timercnt) |
1301 | if (timercnt) |
681 | { |
1302 | { |
682 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
1303 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
683 | if (block > to) block = to; |
1304 | if (block > to) block = to; |
684 | } |
1305 | } |
685 | |
1306 | |
|
|
1307 | #if EV_PERIODICS |
686 | if (periodiccnt) |
1308 | if (periodiccnt) |
687 | { |
1309 | { |
688 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1310 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
689 | if (block > to) block = to; |
1311 | if (block > to) block = to; |
690 | } |
1312 | } |
|
|
1313 | #endif |
691 | |
1314 | |
692 | if (block < 0.) block = 0.; |
1315 | if (expect_false (block < 0.)) block = 0.; |
693 | } |
1316 | } |
694 | |
1317 | |
695 | method_poll (block); |
1318 | backend_poll (EV_A_ block); |
|
|
1319 | } |
696 | |
1320 | |
697 | /* update ev_now, do magic */ |
1321 | /* update ev_rt_now, do magic */ |
698 | time_update (); |
1322 | time_update (EV_A); |
699 | |
1323 | |
700 | /* queue pending timers and reschedule them */ |
1324 | /* queue pending timers and reschedule them */ |
701 | timers_reify (); /* relative timers called last */ |
1325 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1326 | #if EV_PERIODICS |
702 | periodics_reify (); /* absolute timers called first */ |
1327 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1328 | #endif |
703 | |
1329 | |
704 | /* queue idle watchers unless io or timers are pending */ |
1330 | /* queue idle watchers unless other events are pending */ |
705 | if (!pendingcnt) |
1331 | if (idlecnt && !any_pending (EV_A)) |
706 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1332 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
707 | |
1333 | |
708 | /* queue check watchers, to be executed first */ |
1334 | /* queue check watchers, to be executed first */ |
709 | if (checkcnt) |
1335 | if (expect_false (checkcnt)) |
710 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1336 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
711 | |
1337 | |
712 | call_pending (); |
1338 | call_pending (EV_A); |
713 | } |
|
|
714 | while (!ev_loop_done); |
|
|
715 | |
1339 | |
716 | if (ev_loop_done != 2) |
1340 | if (expect_false (loop_done)) |
|
|
1341 | break; |
|
|
1342 | } |
|
|
1343 | |
|
|
1344 | if (loop_done == EVUNLOOP_ONE) |
|
|
1345 | loop_done = EVUNLOOP_CANCEL; |
|
|
1346 | } |
|
|
1347 | |
|
|
1348 | void |
|
|
1349 | ev_unloop (EV_P_ int how) |
|
|
1350 | { |
717 | ev_loop_done = 0; |
1351 | loop_done = how; |
718 | } |
1352 | } |
719 | |
1353 | |
720 | /*****************************************************************************/ |
1354 | /*****************************************************************************/ |
721 | |
1355 | |
722 | static void |
1356 | inline void |
723 | wlist_add (WL *head, WL elem) |
1357 | wlist_add (WL *head, WL elem) |
724 | { |
1358 | { |
725 | elem->next = *head; |
1359 | elem->next = *head; |
726 | *head = elem; |
1360 | *head = elem; |
727 | } |
1361 | } |
728 | |
1362 | |
729 | static void |
1363 | inline void |
730 | wlist_del (WL *head, WL elem) |
1364 | wlist_del (WL *head, WL elem) |
731 | { |
1365 | { |
732 | while (*head) |
1366 | while (*head) |
733 | { |
1367 | { |
734 | if (*head == elem) |
1368 | if (*head == elem) |
… | |
… | |
739 | |
1373 | |
740 | head = &(*head)->next; |
1374 | head = &(*head)->next; |
741 | } |
1375 | } |
742 | } |
1376 | } |
743 | |
1377 | |
744 | static void |
1378 | inline void |
745 | ev_clear_pending (W w) |
1379 | ev_clear_pending (EV_P_ W w) |
746 | { |
1380 | { |
747 | if (w->pending) |
1381 | if (w->pending) |
748 | { |
1382 | { |
749 | pendings [w->pending - 1].w = 0; |
1383 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
750 | w->pending = 0; |
1384 | w->pending = 0; |
751 | } |
1385 | } |
752 | } |
1386 | } |
753 | |
1387 | |
754 | static void |
1388 | inline void |
755 | ev_start (W w, int active) |
1389 | ev_start (EV_P_ W w, int active) |
756 | { |
1390 | { |
|
|
1391 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
1392 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1393 | |
757 | w->active = active; |
1394 | w->active = active; |
|
|
1395 | ev_ref (EV_A); |
758 | } |
1396 | } |
759 | |
1397 | |
760 | static void |
1398 | inline void |
761 | ev_stop (W w) |
1399 | ev_stop (EV_P_ W w) |
762 | { |
1400 | { |
|
|
1401 | ev_unref (EV_A); |
763 | w->active = 0; |
1402 | w->active = 0; |
764 | } |
1403 | } |
765 | |
1404 | |
766 | /*****************************************************************************/ |
1405 | /*****************************************************************************/ |
767 | |
1406 | |
768 | void |
1407 | void |
769 | ev_io_start (struct ev_io *w) |
1408 | ev_io_start (EV_P_ ev_io *w) |
770 | { |
1409 | { |
771 | int fd = w->fd; |
1410 | int fd = w->fd; |
772 | |
1411 | |
773 | if (ev_is_active (w)) |
1412 | if (expect_false (ev_is_active (w))) |
774 | return; |
1413 | return; |
775 | |
1414 | |
776 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1415 | assert (("ev_io_start called with negative fd", fd >= 0)); |
777 | |
1416 | |
778 | ev_start ((W)w, 1); |
1417 | ev_start (EV_A_ (W)w, 1); |
779 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1418 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
780 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1419 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
781 | |
1420 | |
782 | fd_change (fd); |
1421 | fd_change (EV_A_ fd); |
783 | } |
1422 | } |
784 | |
1423 | |
785 | void |
1424 | void |
786 | ev_io_stop (struct ev_io *w) |
1425 | ev_io_stop (EV_P_ ev_io *w) |
787 | { |
1426 | { |
788 | ev_clear_pending ((W)w); |
1427 | ev_clear_pending (EV_A_ (W)w); |
789 | if (!ev_is_active (w)) |
1428 | if (expect_false (!ev_is_active (w))) |
790 | return; |
1429 | return; |
|
|
1430 | |
|
|
1431 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
791 | |
1432 | |
792 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1433 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
793 | ev_stop ((W)w); |
1434 | ev_stop (EV_A_ (W)w); |
794 | |
1435 | |
795 | fd_change (w->fd); |
1436 | fd_change (EV_A_ w->fd); |
796 | } |
1437 | } |
797 | |
1438 | |
798 | void |
1439 | void |
799 | ev_timer_start (struct ev_timer *w) |
1440 | ev_timer_start (EV_P_ ev_timer *w) |
800 | { |
1441 | { |
801 | if (ev_is_active (w)) |
1442 | if (expect_false (ev_is_active (w))) |
802 | return; |
1443 | return; |
803 | |
1444 | |
804 | w->at += now; |
1445 | ((WT)w)->at += mn_now; |
805 | |
1446 | |
806 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1447 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
807 | |
1448 | |
808 | ev_start ((W)w, ++timercnt); |
1449 | ev_start (EV_A_ (W)w, ++timercnt); |
809 | array_needsize (timers, timermax, timercnt, ); |
1450 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
810 | timers [timercnt - 1] = w; |
1451 | timers [timercnt - 1] = w; |
811 | upheap ((WT *)timers, timercnt - 1); |
1452 | upheap ((WT *)timers, timercnt - 1); |
812 | } |
|
|
813 | |
1453 | |
|
|
1454 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1455 | } |
|
|
1456 | |
814 | void |
1457 | void |
815 | ev_timer_stop (struct ev_timer *w) |
1458 | ev_timer_stop (EV_P_ ev_timer *w) |
816 | { |
1459 | { |
817 | ev_clear_pending ((W)w); |
1460 | ev_clear_pending (EV_A_ (W)w); |
818 | if (!ev_is_active (w)) |
1461 | if (expect_false (!ev_is_active (w))) |
819 | return; |
1462 | return; |
820 | |
1463 | |
|
|
1464 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1465 | |
821 | if (w->active < timercnt--) |
1466 | if (expect_true (((W)w)->active < timercnt--)) |
822 | { |
1467 | { |
823 | timers [w->active - 1] = timers [timercnt]; |
1468 | timers [((W)w)->active - 1] = timers [timercnt]; |
824 | downheap ((WT *)timers, timercnt, w->active - 1); |
1469 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
825 | } |
1470 | } |
826 | |
1471 | |
827 | w->at = w->repeat; |
1472 | ((WT)w)->at -= mn_now; |
828 | |
1473 | |
829 | ev_stop ((W)w); |
1474 | ev_stop (EV_A_ (W)w); |
830 | } |
1475 | } |
831 | |
1476 | |
832 | void |
1477 | void |
833 | ev_timer_again (struct ev_timer *w) |
1478 | ev_timer_again (EV_P_ ev_timer *w) |
834 | { |
1479 | { |
835 | if (ev_is_active (w)) |
1480 | if (ev_is_active (w)) |
836 | { |
1481 | { |
837 | if (w->repeat) |
1482 | if (w->repeat) |
838 | { |
1483 | { |
839 | w->at = now + w->repeat; |
1484 | ((WT)w)->at = mn_now + w->repeat; |
840 | downheap ((WT *)timers, timercnt, w->active - 1); |
1485 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
841 | } |
1486 | } |
842 | else |
1487 | else |
843 | ev_timer_stop (w); |
1488 | ev_timer_stop (EV_A_ w); |
844 | } |
1489 | } |
845 | else if (w->repeat) |
1490 | else if (w->repeat) |
|
|
1491 | { |
|
|
1492 | w->at = w->repeat; |
846 | ev_timer_start (w); |
1493 | ev_timer_start (EV_A_ w); |
|
|
1494 | } |
847 | } |
1495 | } |
848 | |
1496 | |
|
|
1497 | #if EV_PERIODICS |
849 | void |
1498 | void |
850 | ev_periodic_start (struct ev_periodic *w) |
1499 | ev_periodic_start (EV_P_ ev_periodic *w) |
851 | { |
1500 | { |
852 | if (ev_is_active (w)) |
1501 | if (expect_false (ev_is_active (w))) |
853 | return; |
1502 | return; |
854 | |
1503 | |
|
|
1504 | if (w->reschedule_cb) |
|
|
1505 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1506 | else if (w->interval) |
|
|
1507 | { |
855 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1508 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
856 | |
|
|
857 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1509 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
858 | if (w->interval) |
|
|
859 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1510 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1511 | } |
860 | |
1512 | |
861 | ev_start ((W)w, ++periodiccnt); |
1513 | ev_start (EV_A_ (W)w, ++periodiccnt); |
862 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1514 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
863 | periodics [periodiccnt - 1] = w; |
1515 | periodics [periodiccnt - 1] = w; |
864 | upheap ((WT *)periodics, periodiccnt - 1); |
1516 | upheap ((WT *)periodics, periodiccnt - 1); |
865 | } |
|
|
866 | |
1517 | |
|
|
1518 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1519 | } |
|
|
1520 | |
867 | void |
1521 | void |
868 | ev_periodic_stop (struct ev_periodic *w) |
1522 | ev_periodic_stop (EV_P_ ev_periodic *w) |
869 | { |
1523 | { |
870 | ev_clear_pending ((W)w); |
1524 | ev_clear_pending (EV_A_ (W)w); |
871 | if (!ev_is_active (w)) |
1525 | if (expect_false (!ev_is_active (w))) |
872 | return; |
1526 | return; |
873 | |
1527 | |
|
|
1528 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1529 | |
874 | if (w->active < periodiccnt--) |
1530 | if (expect_true (((W)w)->active < periodiccnt--)) |
875 | { |
1531 | { |
876 | periodics [w->active - 1] = periodics [periodiccnt]; |
1532 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
877 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1533 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
878 | } |
1534 | } |
879 | |
1535 | |
880 | ev_stop ((W)w); |
1536 | ev_stop (EV_A_ (W)w); |
881 | } |
1537 | } |
882 | |
1538 | |
883 | void |
1539 | void |
|
|
1540 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1541 | { |
|
|
1542 | /* TODO: use adjustheap and recalculation */ |
|
|
1543 | ev_periodic_stop (EV_A_ w); |
|
|
1544 | ev_periodic_start (EV_A_ w); |
|
|
1545 | } |
|
|
1546 | #endif |
|
|
1547 | |
|
|
1548 | void |
|
|
1549 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
1550 | { |
|
|
1551 | if (expect_false (ev_is_active (w))) |
|
|
1552 | return; |
|
|
1553 | |
|
|
1554 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1555 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1556 | idles [idlecnt - 1] = w; |
|
|
1557 | } |
|
|
1558 | |
|
|
1559 | void |
|
|
1560 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
1561 | { |
|
|
1562 | ev_clear_pending (EV_A_ (W)w); |
|
|
1563 | if (expect_false (!ev_is_active (w))) |
|
|
1564 | return; |
|
|
1565 | |
|
|
1566 | { |
|
|
1567 | int active = ((W)w)->active; |
|
|
1568 | idles [active - 1] = idles [--idlecnt]; |
|
|
1569 | ((W)idles [active - 1])->active = active; |
|
|
1570 | } |
|
|
1571 | |
|
|
1572 | ev_stop (EV_A_ (W)w); |
|
|
1573 | } |
|
|
1574 | |
|
|
1575 | void |
|
|
1576 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
1577 | { |
|
|
1578 | if (expect_false (ev_is_active (w))) |
|
|
1579 | return; |
|
|
1580 | |
|
|
1581 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1582 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1583 | prepares [preparecnt - 1] = w; |
|
|
1584 | } |
|
|
1585 | |
|
|
1586 | void |
|
|
1587 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
1588 | { |
|
|
1589 | ev_clear_pending (EV_A_ (W)w); |
|
|
1590 | if (expect_false (!ev_is_active (w))) |
|
|
1591 | return; |
|
|
1592 | |
|
|
1593 | { |
|
|
1594 | int active = ((W)w)->active; |
|
|
1595 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
1596 | ((W)prepares [active - 1])->active = active; |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | ev_stop (EV_A_ (W)w); |
|
|
1600 | } |
|
|
1601 | |
|
|
1602 | void |
|
|
1603 | ev_check_start (EV_P_ ev_check *w) |
|
|
1604 | { |
|
|
1605 | if (expect_false (ev_is_active (w))) |
|
|
1606 | return; |
|
|
1607 | |
|
|
1608 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1609 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1610 | checks [checkcnt - 1] = w; |
|
|
1611 | } |
|
|
1612 | |
|
|
1613 | void |
|
|
1614 | ev_check_stop (EV_P_ ev_check *w) |
|
|
1615 | { |
|
|
1616 | ev_clear_pending (EV_A_ (W)w); |
|
|
1617 | if (expect_false (!ev_is_active (w))) |
|
|
1618 | return; |
|
|
1619 | |
|
|
1620 | { |
|
|
1621 | int active = ((W)w)->active; |
|
|
1622 | checks [active - 1] = checks [--checkcnt]; |
|
|
1623 | ((W)checks [active - 1])->active = active; |
|
|
1624 | } |
|
|
1625 | |
|
|
1626 | ev_stop (EV_A_ (W)w); |
|
|
1627 | } |
|
|
1628 | |
|
|
1629 | #ifndef SA_RESTART |
|
|
1630 | # define SA_RESTART 0 |
|
|
1631 | #endif |
|
|
1632 | |
|
|
1633 | void |
884 | ev_signal_start (struct ev_signal *w) |
1634 | ev_signal_start (EV_P_ ev_signal *w) |
885 | { |
1635 | { |
|
|
1636 | #if EV_MULTIPLICITY |
|
|
1637 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1638 | #endif |
886 | if (ev_is_active (w)) |
1639 | if (expect_false (ev_is_active (w))) |
887 | return; |
1640 | return; |
888 | |
1641 | |
889 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1642 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
890 | |
1643 | |
891 | ev_start ((W)w, 1); |
1644 | ev_start (EV_A_ (W)w, 1); |
892 | array_needsize (signals, signalmax, w->signum, signals_init); |
1645 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
893 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1646 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
894 | |
1647 | |
895 | if (!w->next) |
1648 | if (!((WL)w)->next) |
896 | { |
1649 | { |
|
|
1650 | #if _WIN32 |
|
|
1651 | signal (w->signum, sighandler); |
|
|
1652 | #else |
897 | struct sigaction sa; |
1653 | struct sigaction sa; |
898 | sa.sa_handler = sighandler; |
1654 | sa.sa_handler = sighandler; |
899 | sigfillset (&sa.sa_mask); |
1655 | sigfillset (&sa.sa_mask); |
900 | sa.sa_flags = 0; |
1656 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
901 | sigaction (w->signum, &sa, 0); |
1657 | sigaction (w->signum, &sa, 0); |
|
|
1658 | #endif |
902 | } |
1659 | } |
903 | } |
1660 | } |
904 | |
1661 | |
905 | void |
1662 | void |
906 | ev_signal_stop (struct ev_signal *w) |
1663 | ev_signal_stop (EV_P_ ev_signal *w) |
907 | { |
1664 | { |
908 | ev_clear_pending ((W)w); |
1665 | ev_clear_pending (EV_A_ (W)w); |
909 | if (!ev_is_active (w)) |
1666 | if (expect_false (!ev_is_active (w))) |
910 | return; |
1667 | return; |
911 | |
1668 | |
912 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1669 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
913 | ev_stop ((W)w); |
1670 | ev_stop (EV_A_ (W)w); |
914 | |
1671 | |
915 | if (!signals [w->signum - 1].head) |
1672 | if (!signals [w->signum - 1].head) |
916 | signal (w->signum, SIG_DFL); |
1673 | signal (w->signum, SIG_DFL); |
917 | } |
1674 | } |
918 | |
1675 | |
919 | void |
1676 | void |
920 | ev_idle_start (struct ev_idle *w) |
|
|
921 | { |
|
|
922 | if (ev_is_active (w)) |
|
|
923 | return; |
|
|
924 | |
|
|
925 | ev_start ((W)w, ++idlecnt); |
|
|
926 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
927 | idles [idlecnt - 1] = w; |
|
|
928 | } |
|
|
929 | |
|
|
930 | void |
|
|
931 | ev_idle_stop (struct ev_idle *w) |
|
|
932 | { |
|
|
933 | ev_clear_pending ((W)w); |
|
|
934 | if (ev_is_active (w)) |
|
|
935 | return; |
|
|
936 | |
|
|
937 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
938 | ev_stop ((W)w); |
|
|
939 | } |
|
|
940 | |
|
|
941 | void |
|
|
942 | ev_prepare_start (struct ev_prepare *w) |
|
|
943 | { |
|
|
944 | if (ev_is_active (w)) |
|
|
945 | return; |
|
|
946 | |
|
|
947 | ev_start ((W)w, ++preparecnt); |
|
|
948 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
949 | prepares [preparecnt - 1] = w; |
|
|
950 | } |
|
|
951 | |
|
|
952 | void |
|
|
953 | ev_prepare_stop (struct ev_prepare *w) |
|
|
954 | { |
|
|
955 | ev_clear_pending ((W)w); |
|
|
956 | if (ev_is_active (w)) |
|
|
957 | return; |
|
|
958 | |
|
|
959 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
960 | ev_stop ((W)w); |
|
|
961 | } |
|
|
962 | |
|
|
963 | void |
|
|
964 | ev_check_start (struct ev_check *w) |
|
|
965 | { |
|
|
966 | if (ev_is_active (w)) |
|
|
967 | return; |
|
|
968 | |
|
|
969 | ev_start ((W)w, ++checkcnt); |
|
|
970 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
971 | checks [checkcnt - 1] = w; |
|
|
972 | } |
|
|
973 | |
|
|
974 | void |
|
|
975 | ev_check_stop (struct ev_check *w) |
|
|
976 | { |
|
|
977 | ev_clear_pending ((W)w); |
|
|
978 | if (ev_is_active (w)) |
|
|
979 | return; |
|
|
980 | |
|
|
981 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
982 | ev_stop ((W)w); |
|
|
983 | } |
|
|
984 | |
|
|
985 | void |
|
|
986 | ev_child_start (struct ev_child *w) |
1677 | ev_child_start (EV_P_ ev_child *w) |
987 | { |
1678 | { |
|
|
1679 | #if EV_MULTIPLICITY |
|
|
1680 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1681 | #endif |
988 | if (ev_is_active (w)) |
1682 | if (expect_false (ev_is_active (w))) |
989 | return; |
1683 | return; |
990 | |
1684 | |
991 | ev_start ((W)w, 1); |
1685 | ev_start (EV_A_ (W)w, 1); |
992 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1686 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
993 | } |
1687 | } |
994 | |
1688 | |
995 | void |
1689 | void |
996 | ev_child_stop (struct ev_child *w) |
1690 | ev_child_stop (EV_P_ ev_child *w) |
997 | { |
1691 | { |
998 | ev_clear_pending ((W)w); |
1692 | ev_clear_pending (EV_A_ (W)w); |
999 | if (ev_is_active (w)) |
1693 | if (expect_false (!ev_is_active (w))) |
1000 | return; |
1694 | return; |
1001 | |
1695 | |
1002 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1696 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1003 | ev_stop ((W)w); |
1697 | ev_stop (EV_A_ (W)w); |
1004 | } |
1698 | } |
|
|
1699 | |
|
|
1700 | #if EV_MULTIPLICITY |
|
|
1701 | void |
|
|
1702 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
1703 | { |
|
|
1704 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
1705 | } |
|
|
1706 | |
|
|
1707 | static void |
|
|
1708 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
1709 | { |
|
|
1710 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
1711 | |
|
|
1712 | if (ev_cb (w)) |
|
|
1713 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
1714 | else |
|
|
1715 | ev_embed_sweep (loop, w); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | void |
|
|
1719 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
1720 | { |
|
|
1721 | if (expect_false (ev_is_active (w))) |
|
|
1722 | return; |
|
|
1723 | |
|
|
1724 | { |
|
|
1725 | struct ev_loop *loop = w->loop; |
|
|
1726 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
1727 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1728 | } |
|
|
1729 | |
|
|
1730 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1731 | ev_io_start (EV_A_ &w->io); |
|
|
1732 | ev_start (EV_A_ (W)w, 1); |
|
|
1733 | } |
|
|
1734 | |
|
|
1735 | void |
|
|
1736 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
1737 | { |
|
|
1738 | ev_clear_pending (EV_A_ (W)w); |
|
|
1739 | if (expect_false (!ev_is_active (w))) |
|
|
1740 | return; |
|
|
1741 | |
|
|
1742 | ev_io_stop (EV_A_ &w->io); |
|
|
1743 | ev_stop (EV_A_ (W)w); |
|
|
1744 | } |
|
|
1745 | #endif |
1005 | |
1746 | |
1006 | /*****************************************************************************/ |
1747 | /*****************************************************************************/ |
1007 | |
1748 | |
1008 | struct ev_once |
1749 | struct ev_once |
1009 | { |
1750 | { |
1010 | struct ev_io io; |
1751 | ev_io io; |
1011 | struct ev_timer to; |
1752 | ev_timer to; |
1012 | void (*cb)(int revents, void *arg); |
1753 | void (*cb)(int revents, void *arg); |
1013 | void *arg; |
1754 | void *arg; |
1014 | }; |
1755 | }; |
1015 | |
1756 | |
1016 | static void |
1757 | static void |
1017 | once_cb (struct ev_once *once, int revents) |
1758 | once_cb (EV_P_ struct ev_once *once, int revents) |
1018 | { |
1759 | { |
1019 | void (*cb)(int revents, void *arg) = once->cb; |
1760 | void (*cb)(int revents, void *arg) = once->cb; |
1020 | void *arg = once->arg; |
1761 | void *arg = once->arg; |
1021 | |
1762 | |
1022 | ev_io_stop (&once->io); |
1763 | ev_io_stop (EV_A_ &once->io); |
1023 | ev_timer_stop (&once->to); |
1764 | ev_timer_stop (EV_A_ &once->to); |
1024 | free (once); |
1765 | ev_free (once); |
1025 | |
1766 | |
1026 | cb (revents, arg); |
1767 | cb (revents, arg); |
1027 | } |
1768 | } |
1028 | |
1769 | |
1029 | static void |
1770 | static void |
1030 | once_cb_io (struct ev_io *w, int revents) |
1771 | once_cb_io (EV_P_ ev_io *w, int revents) |
1031 | { |
1772 | { |
1032 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1773 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1033 | } |
1774 | } |
1034 | |
1775 | |
1035 | static void |
1776 | static void |
1036 | once_cb_to (struct ev_timer *w, int revents) |
1777 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1037 | { |
1778 | { |
1038 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1779 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1039 | } |
1780 | } |
1040 | |
1781 | |
1041 | void |
1782 | void |
1042 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1783 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1043 | { |
1784 | { |
1044 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1785 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1045 | |
1786 | |
1046 | if (!once) |
1787 | if (expect_false (!once)) |
|
|
1788 | { |
1047 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1789 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1048 | else |
1790 | return; |
1049 | { |
1791 | } |
|
|
1792 | |
1050 | once->cb = cb; |
1793 | once->cb = cb; |
1051 | once->arg = arg; |
1794 | once->arg = arg; |
1052 | |
1795 | |
1053 | ev_watcher_init (&once->io, once_cb_io); |
1796 | ev_init (&once->io, once_cb_io); |
1054 | if (fd >= 0) |
1797 | if (fd >= 0) |
1055 | { |
1798 | { |
1056 | ev_io_set (&once->io, fd, events); |
1799 | ev_io_set (&once->io, fd, events); |
1057 | ev_io_start (&once->io); |
1800 | ev_io_start (EV_A_ &once->io); |
1058 | } |
1801 | } |
1059 | |
1802 | |
1060 | ev_watcher_init (&once->to, once_cb_to); |
1803 | ev_init (&once->to, once_cb_to); |
1061 | if (timeout >= 0.) |
1804 | if (timeout >= 0.) |
1062 | { |
1805 | { |
1063 | ev_timer_set (&once->to, timeout, 0.); |
1806 | ev_timer_set (&once->to, timeout, 0.); |
1064 | ev_timer_start (&once->to); |
1807 | ev_timer_start (EV_A_ &once->to); |
1065 | } |
|
|
1066 | } |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | /*****************************************************************************/ |
|
|
1070 | |
|
|
1071 | #if 0 |
|
|
1072 | |
|
|
1073 | struct ev_io wio; |
|
|
1074 | |
|
|
1075 | static void |
|
|
1076 | sin_cb (struct ev_io *w, int revents) |
|
|
1077 | { |
|
|
1078 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | static void |
|
|
1082 | ocb (struct ev_timer *w, int revents) |
|
|
1083 | { |
|
|
1084 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1085 | ev_timer_stop (w); |
|
|
1086 | ev_timer_start (w); |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | static void |
|
|
1090 | scb (struct ev_signal *w, int revents) |
|
|
1091 | { |
|
|
1092 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1093 | ev_io_stop (&wio); |
|
|
1094 | ev_io_start (&wio); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | static void |
|
|
1098 | gcb (struct ev_signal *w, int revents) |
|
|
1099 | { |
|
|
1100 | fprintf (stderr, "generic %x\n", revents); |
|
|
1101 | |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | int main (void) |
|
|
1105 | { |
|
|
1106 | ev_init (0); |
|
|
1107 | |
|
|
1108 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1109 | ev_io_start (&wio); |
|
|
1110 | |
|
|
1111 | struct ev_timer t[10000]; |
|
|
1112 | |
|
|
1113 | #if 0 |
|
|
1114 | int i; |
|
|
1115 | for (i = 0; i < 10000; ++i) |
|
|
1116 | { |
1808 | } |
1117 | struct ev_timer *w = t + i; |
|
|
1118 | ev_watcher_init (w, ocb, i); |
|
|
1119 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1120 | ev_timer_start (w); |
|
|
1121 | if (drand48 () < 0.5) |
|
|
1122 | ev_timer_stop (w); |
|
|
1123 | } |
|
|
1124 | #endif |
|
|
1125 | |
|
|
1126 | struct ev_timer t1; |
|
|
1127 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1128 | ev_timer_start (&t1); |
|
|
1129 | |
|
|
1130 | struct ev_signal sig; |
|
|
1131 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1132 | ev_signal_start (&sig); |
|
|
1133 | |
|
|
1134 | struct ev_check cw; |
|
|
1135 | ev_check_init (&cw, gcb); |
|
|
1136 | ev_check_start (&cw); |
|
|
1137 | |
|
|
1138 | struct ev_idle iw; |
|
|
1139 | ev_idle_init (&iw, gcb); |
|
|
1140 | ev_idle_start (&iw); |
|
|
1141 | |
|
|
1142 | ev_loop (0); |
|
|
1143 | |
|
|
1144 | return 0; |
|
|
1145 | } |
1809 | } |
1146 | |
1810 | |
|
|
1811 | #ifdef __cplusplus |
|
|
1812 | } |
1147 | #endif |
1813 | #endif |
1148 | |
1814 | |
1149 | |
|
|
1150 | |
|
|
1151 | |
|
|