… | |
… | |
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> |
|
|
111 | #include <time.h> |
|
|
112 | |
|
|
113 | #include <signal.h> |
|
|
114 | |
47 | #ifndef WIN32 |
115 | #ifndef _WIN32 |
|
|
116 | # include <unistd.h> |
|
|
117 | # include <sys/time.h> |
48 | # include <sys/wait.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 |
49 | #endif |
124 | # endif |
50 | #include <sys/time.h> |
125 | #endif |
51 | #include <time.h> |
|
|
52 | |
126 | |
53 | /**/ |
127 | /**/ |
54 | |
128 | |
55 | #ifndef EV_USE_MONOTONIC |
129 | #ifndef EV_USE_MONOTONIC |
56 | # 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 |
57 | #endif |
135 | #endif |
58 | |
136 | |
59 | #ifndef EV_USE_SELECT |
137 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
138 | # define EV_USE_SELECT 1 |
61 | #endif |
139 | #endif |
62 | |
140 | |
63 | #ifndef EV_USE_POLL |
141 | #ifndef EV_USE_POLL |
64 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
142 | # ifdef _WIN32 |
|
|
143 | # define EV_USE_POLL 0 |
|
|
144 | # else |
|
|
145 | # define EV_USE_POLL 1 |
|
|
146 | # endif |
65 | #endif |
147 | #endif |
66 | |
148 | |
67 | #ifndef EV_USE_EPOLL |
149 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
150 | # define EV_USE_EPOLL 0 |
69 | #endif |
151 | #endif |
70 | |
152 | |
71 | #ifndef EV_USE_KQUEUE |
153 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
154 | # define EV_USE_KQUEUE 0 |
73 | #endif |
155 | #endif |
74 | |
156 | |
75 | #ifndef EV_USE_REALTIME |
157 | #ifndef EV_USE_PORT |
76 | # define EV_USE_REALTIME 1 |
158 | # define EV_USE_PORT 0 |
77 | #endif |
159 | #endif |
78 | |
160 | |
79 | /**/ |
161 | /**/ |
80 | |
162 | |
81 | #ifndef CLOCK_MONOTONIC |
163 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
86 | #ifndef CLOCK_REALTIME |
168 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
169 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
170 | # define EV_USE_REALTIME 0 |
89 | #endif |
171 | #endif |
90 | |
172 | |
|
|
173 | #if EV_SELECT_IS_WINSOCKET |
|
|
174 | # include <winsock.h> |
|
|
175 | #endif |
|
|
176 | |
91 | /**/ |
177 | /**/ |
92 | |
178 | |
93 | #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) */ |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
97 | |
183 | |
|
|
184 | #ifdef EV_H |
|
|
185 | # include EV_H |
|
|
186 | #else |
98 | #include "ev.h" |
187 | # include "ev.h" |
|
|
188 | #endif |
99 | |
189 | |
100 | #if __GNUC__ >= 3 |
190 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
102 | # define inline inline |
192 | # define inline static inline |
103 | #else |
193 | #else |
104 | # define expect(expr,value) (expr) |
194 | # define expect(expr,value) (expr) |
105 | # define inline static |
195 | # define inline static |
106 | #endif |
196 | #endif |
107 | |
197 | |
… | |
… | |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
199 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
200 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
201 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
202 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
113 | |
203 | |
|
|
204 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
205 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
206 | |
114 | typedef struct ev_watcher *W; |
207 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
208 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
209 | typedef struct ev_watcher_time *WT; |
117 | |
210 | |
118 | static ev_tstamp now_floor, 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 | |
119 | ev_tstamp ev_now; |
300 | ev_tstamp ev_rt_now; |
120 | int ev_method; |
301 | #define VAR(name,decl) static decl; |
|
|
302 | #include "ev_vars.h" |
|
|
303 | #undef VAR |
121 | |
304 | |
122 | static int have_monotonic; /* runtime */ |
305 | static int ev_default_loop_ptr; |
123 | |
306 | |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
307 | #endif |
125 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
126 | static void (*method_poll)(ev_tstamp timeout); |
|
|
127 | |
308 | |
128 | /*****************************************************************************/ |
309 | /*****************************************************************************/ |
129 | |
310 | |
130 | ev_tstamp |
311 | ev_tstamp |
131 | ev_time (void) |
312 | ev_time (void) |
… | |
… | |
139 | gettimeofday (&tv, 0); |
320 | gettimeofday (&tv, 0); |
140 | return tv.tv_sec + tv.tv_usec * 1e-6; |
321 | return tv.tv_sec + tv.tv_usec * 1e-6; |
141 | #endif |
322 | #endif |
142 | } |
323 | } |
143 | |
324 | |
144 | static ev_tstamp |
325 | inline ev_tstamp |
145 | get_clock (void) |
326 | get_clock (void) |
146 | { |
327 | { |
147 | #if EV_USE_MONOTONIC |
328 | #if EV_USE_MONOTONIC |
148 | if (expect_true (have_monotonic)) |
329 | if (expect_true (have_monotonic)) |
149 | { |
330 | { |
… | |
… | |
154 | #endif |
335 | #endif |
155 | |
336 | |
156 | return ev_time (); |
337 | return ev_time (); |
157 | } |
338 | } |
158 | |
339 | |
|
|
340 | #if EV_MULTIPLICITY |
|
|
341 | ev_tstamp |
|
|
342 | ev_now (EV_P) |
|
|
343 | { |
|
|
344 | return ev_rt_now; |
|
|
345 | } |
|
|
346 | #endif |
|
|
347 | |
159 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
160 | |
349 | |
161 | #define array_needsize(base,cur,cnt,init) \ |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
162 | if (expect_false ((cnt) > cur)) \ |
351 | if (expect_false ((cnt) > cur)) \ |
163 | { \ |
352 | { \ |
164 | int newcnt = cur; \ |
353 | int newcnt = cur; \ |
165 | do \ |
354 | do \ |
166 | { \ |
355 | { \ |
167 | newcnt = array_roundsize (base, newcnt << 1); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
168 | } \ |
357 | } \ |
169 | while ((cnt) > newcnt); \ |
358 | while ((cnt) > newcnt); \ |
170 | \ |
359 | \ |
171 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
360 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
172 | init (base + cur, newcnt - cur); \ |
361 | init (base + cur, newcnt - cur); \ |
173 | cur = newcnt; \ |
362 | cur = newcnt; \ |
174 | } |
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; |
175 | |
375 | |
176 | /*****************************************************************************/ |
376 | /*****************************************************************************/ |
177 | |
|
|
178 | typedef struct |
|
|
179 | { |
|
|
180 | struct ev_io *head; |
|
|
181 | unsigned char events; |
|
|
182 | unsigned char reify; |
|
|
183 | } ANFD; |
|
|
184 | |
|
|
185 | static ANFD *anfds; |
|
|
186 | static int anfdmax; |
|
|
187 | |
377 | |
188 | static void |
378 | static void |
189 | anfds_init (ANFD *base, int count) |
379 | anfds_init (ANFD *base, int count) |
190 | { |
380 | { |
191 | while (count--) |
381 | while (count--) |
… | |
… | |
196 | |
386 | |
197 | ++base; |
387 | ++base; |
198 | } |
388 | } |
199 | } |
389 | } |
200 | |
390 | |
201 | typedef struct |
391 | void |
|
|
392 | ev_feed_event (EV_P_ void *w, int revents) |
202 | { |
393 | { |
203 | W w; |
394 | W w_ = (W)w; |
204 | int events; |
|
|
205 | } ANPENDING; |
|
|
206 | |
395 | |
207 | static ANPENDING *pendings [NUMPRI]; |
396 | if (expect_false (w_->pending)) |
208 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
209 | |
|
|
210 | static void |
|
|
211 | event (W w, int events) |
|
|
212 | { |
|
|
213 | if (w->pending) |
|
|
214 | { |
397 | { |
215 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
216 | return; |
399 | return; |
217 | } |
400 | } |
218 | |
401 | |
219 | w->pending = ++pendingcnt [ABSPRI (w)]; |
402 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
220 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
403 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
221 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
404 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
222 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
405 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
223 | } |
406 | } |
224 | |
407 | |
225 | static void |
408 | static void |
226 | queue_events (W *events, int eventcnt, int type) |
409 | queue_events (EV_P_ W *events, int eventcnt, int type) |
227 | { |
410 | { |
228 | int i; |
411 | int i; |
229 | |
412 | |
230 | for (i = 0; i < eventcnt; ++i) |
413 | for (i = 0; i < eventcnt; ++i) |
231 | event (events [i], type); |
414 | ev_feed_event (EV_A_ events [i], type); |
232 | } |
415 | } |
233 | |
416 | |
234 | static void |
417 | inline void |
235 | fd_event (int fd, int events) |
418 | fd_event (EV_P_ int fd, int revents) |
236 | { |
419 | { |
237 | ANFD *anfd = anfds + fd; |
420 | ANFD *anfd = anfds + fd; |
238 | struct ev_io *w; |
421 | struct ev_io *w; |
239 | |
422 | |
240 | for (w = anfd->head; w; w = w->next) |
423 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
241 | { |
424 | { |
242 | int ev = w->events & events; |
425 | int ev = w->events & revents; |
243 | |
426 | |
244 | if (ev) |
427 | if (ev) |
245 | event ((W)w, ev); |
428 | ev_feed_event (EV_A_ (W)w, ev); |
246 | } |
429 | } |
|
|
430 | } |
|
|
431 | |
|
|
432 | void |
|
|
433 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
434 | { |
|
|
435 | fd_event (EV_A_ fd, revents); |
247 | } |
436 | } |
248 | |
437 | |
249 | /*****************************************************************************/ |
438 | /*****************************************************************************/ |
250 | |
439 | |
251 | static int *fdchanges; |
440 | inline void |
252 | static int fdchangemax, fdchangecnt; |
441 | fd_reify (EV_P) |
253 | |
|
|
254 | static void |
|
|
255 | fd_reify (void) |
|
|
256 | { |
442 | { |
257 | int i; |
443 | int i; |
258 | |
444 | |
259 | for (i = 0; i < fdchangecnt; ++i) |
445 | for (i = 0; i < fdchangecnt; ++i) |
260 | { |
446 | { |
… | |
… | |
262 | ANFD *anfd = anfds + fd; |
448 | ANFD *anfd = anfds + fd; |
263 | struct ev_io *w; |
449 | struct ev_io *w; |
264 | |
450 | |
265 | int events = 0; |
451 | int events = 0; |
266 | |
452 | |
267 | for (w = anfd->head; w; w = w->next) |
453 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
268 | events |= w->events; |
454 | events |= w->events; |
269 | |
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 | |
270 | anfd->reify = 0; |
465 | anfd->reify = 0; |
271 | |
466 | |
272 | if (anfd->events != events) |
|
|
273 | { |
|
|
274 | method_modify (fd, anfd->events, events); |
467 | backend_modify (EV_A_ fd, anfd->events, events); |
275 | anfd->events = events; |
468 | anfd->events = events; |
276 | } |
|
|
277 | } |
469 | } |
278 | |
470 | |
279 | fdchangecnt = 0; |
471 | fdchangecnt = 0; |
280 | } |
472 | } |
281 | |
473 | |
282 | static void |
474 | static void |
283 | fd_change (int fd) |
475 | fd_change (EV_P_ int fd) |
284 | { |
476 | { |
285 | if (anfds [fd].reify || fdchangecnt < 0) |
477 | if (expect_false (anfds [fd].reify)) |
286 | return; |
478 | return; |
287 | |
479 | |
288 | anfds [fd].reify = 1; |
480 | anfds [fd].reify = 1; |
289 | |
481 | |
290 | ++fdchangecnt; |
482 | ++fdchangecnt; |
291 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
483 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
292 | fdchanges [fdchangecnt - 1] = fd; |
484 | fdchanges [fdchangecnt - 1] = fd; |
293 | } |
485 | } |
294 | |
486 | |
295 | static void |
487 | static void |
296 | fd_kill (int fd) |
488 | fd_kill (EV_P_ int fd) |
297 | { |
489 | { |
298 | struct ev_io *w; |
490 | struct ev_io *w; |
299 | |
491 | |
300 | printf ("killing fd %d\n", fd);//D |
|
|
301 | while ((w = anfds [fd].head)) |
492 | while ((w = (struct ev_io *)anfds [fd].head)) |
302 | { |
493 | { |
303 | ev_io_stop (w); |
494 | ev_io_stop (EV_A_ w); |
304 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
495 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
305 | } |
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 |
306 | } |
507 | } |
307 | |
508 | |
308 | /* called on EBADF to verify fds */ |
509 | /* called on EBADF to verify fds */ |
309 | static void |
510 | static void |
310 | fd_ebadf (void) |
511 | fd_ebadf (EV_P) |
311 | { |
512 | { |
312 | int fd; |
513 | int fd; |
313 | |
514 | |
314 | for (fd = 0; fd < anfdmax; ++fd) |
515 | for (fd = 0; fd < anfdmax; ++fd) |
315 | if (anfds [fd].events) |
516 | if (anfds [fd].events) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
517 | if (!fd_valid (fd) == -1 && errno == EBADF) |
317 | fd_kill (fd); |
518 | fd_kill (EV_A_ fd); |
318 | } |
519 | } |
319 | |
520 | |
320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
521 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
321 | static void |
522 | static void |
322 | fd_enomem (void) |
523 | fd_enomem (EV_P) |
323 | { |
524 | { |
324 | int fd = anfdmax; |
525 | int fd; |
325 | |
526 | |
326 | while (fd--) |
527 | for (fd = anfdmax; fd--; ) |
327 | if (anfds [fd].events) |
528 | if (anfds [fd].events) |
328 | { |
529 | { |
329 | close (fd); |
|
|
330 | fd_kill (fd); |
530 | fd_kill (EV_A_ fd); |
331 | return; |
531 | return; |
332 | } |
532 | } |
333 | } |
533 | } |
334 | |
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 | } |
|
|
548 | } |
|
|
549 | |
335 | /*****************************************************************************/ |
550 | /*****************************************************************************/ |
336 | |
551 | |
337 | static struct ev_timer **timers; |
|
|
338 | static int timermax, timercnt; |
|
|
339 | |
|
|
340 | static struct ev_periodic **periodics; |
|
|
341 | static int periodicmax, periodiccnt; |
|
|
342 | |
|
|
343 | static void |
552 | static void |
344 | upheap (WT *timers, int k) |
553 | upheap (WT *heap, int k) |
345 | { |
554 | { |
346 | WT w = timers [k]; |
555 | WT w = heap [k]; |
347 | |
556 | |
348 | while (k && timers [k >> 1]->at > w->at) |
557 | while (k && heap [k >> 1]->at > w->at) |
349 | { |
558 | { |
350 | timers [k] = timers [k >> 1]; |
559 | heap [k] = heap [k >> 1]; |
351 | timers [k]->active = k + 1; |
560 | ((W)heap [k])->active = k + 1; |
352 | k >>= 1; |
561 | k >>= 1; |
353 | } |
562 | } |
354 | |
563 | |
355 | timers [k] = w; |
564 | heap [k] = w; |
356 | timers [k]->active = k + 1; |
565 | ((W)heap [k])->active = k + 1; |
357 | |
566 | |
358 | } |
567 | } |
359 | |
568 | |
360 | static void |
569 | static void |
361 | downheap (WT *timers, int N, int k) |
570 | downheap (WT *heap, int N, int k) |
362 | { |
571 | { |
363 | WT w = timers [k]; |
572 | WT w = heap [k]; |
364 | |
573 | |
365 | while (k < (N >> 1)) |
574 | while (k < (N >> 1)) |
366 | { |
575 | { |
367 | int j = k << 1; |
576 | int j = k << 1; |
368 | |
577 | |
369 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
578 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
370 | ++j; |
579 | ++j; |
371 | |
580 | |
372 | if (w->at <= timers [j]->at) |
581 | if (w->at <= heap [j]->at) |
373 | break; |
582 | break; |
374 | |
583 | |
375 | timers [k] = timers [j]; |
584 | heap [k] = heap [j]; |
376 | timers [k]->active = k + 1; |
585 | ((W)heap [k])->active = k + 1; |
377 | k = j; |
586 | k = j; |
378 | } |
587 | } |
379 | |
588 | |
380 | timers [k] = w; |
589 | heap [k] = w; |
381 | 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); |
382 | } |
598 | } |
383 | |
599 | |
384 | /*****************************************************************************/ |
600 | /*****************************************************************************/ |
385 | |
601 | |
386 | typedef struct |
602 | typedef struct |
387 | { |
603 | { |
388 | struct ev_signal *head; |
604 | WL head; |
389 | sig_atomic_t volatile gotsig; |
605 | sig_atomic_t volatile gotsig; |
390 | } ANSIG; |
606 | } ANSIG; |
391 | |
607 | |
392 | static ANSIG *signals; |
608 | static ANSIG *signals; |
393 | static int signalmax; |
609 | static int signalmax; |
… | |
… | |
409 | } |
625 | } |
410 | |
626 | |
411 | static void |
627 | static void |
412 | sighandler (int signum) |
628 | sighandler (int signum) |
413 | { |
629 | { |
|
|
630 | #if _WIN32 |
|
|
631 | signal (signum, sighandler); |
|
|
632 | #endif |
|
|
633 | |
414 | signals [signum - 1].gotsig = 1; |
634 | signals [signum - 1].gotsig = 1; |
415 | |
635 | |
416 | if (!gotsig) |
636 | if (!gotsig) |
417 | { |
637 | { |
|
|
638 | int old_errno = errno; |
418 | gotsig = 1; |
639 | gotsig = 1; |
419 | write (sigpipe [1], &signum, 1); |
640 | write (sigpipe [1], &signum, 1); |
|
|
641 | errno = old_errno; |
420 | } |
642 | } |
421 | } |
643 | } |
422 | |
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 | |
423 | static void |
665 | static void |
424 | sigcb (struct ev_io *iow, int revents) |
666 | sigcb (EV_P_ struct ev_io *iow, int revents) |
425 | { |
667 | { |
426 | struct ev_signal *w; |
|
|
427 | int signum; |
668 | int signum; |
428 | |
669 | |
429 | read (sigpipe [0], &revents, 1); |
670 | read (sigpipe [0], &revents, 1); |
430 | gotsig = 0; |
671 | gotsig = 0; |
431 | |
672 | |
432 | for (signum = signalmax; signum--; ) |
673 | for (signum = signalmax; signum--; ) |
433 | if (signals [signum].gotsig) |
674 | if (signals [signum].gotsig) |
434 | { |
675 | ev_feed_signal_event (EV_A_ signum + 1); |
435 | signals [signum].gotsig = 0; |
|
|
436 | |
|
|
437 | for (w = signals [signum].head; w; w = w->next) |
|
|
438 | event ((W)w, EV_SIGNAL); |
|
|
439 | } |
|
|
440 | } |
676 | } |
441 | |
677 | |
442 | static void |
678 | static void |
443 | siginit (void) |
679 | fd_intern (int fd) |
444 | { |
680 | { |
445 | #ifndef WIN32 |
681 | #ifdef _WIN32 |
|
|
682 | int arg = 1; |
|
|
683 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
684 | #else |
446 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
685 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
447 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
448 | |
|
|
449 | /* rather than sort out wether we really need nb, set it */ |
|
|
450 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
686 | fcntl (fd, F_SETFL, O_NONBLOCK); |
451 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
452 | #endif |
687 | #endif |
|
|
688 | } |
|
|
689 | |
|
|
690 | static void |
|
|
691 | siginit (EV_P) |
|
|
692 | { |
|
|
693 | fd_intern (sigpipe [0]); |
|
|
694 | fd_intern (sigpipe [1]); |
453 | |
695 | |
454 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
696 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
455 | ev_io_start (&sigev); |
697 | ev_io_start (EV_A_ &sigev); |
|
|
698 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
456 | } |
699 | } |
457 | |
700 | |
458 | /*****************************************************************************/ |
701 | /*****************************************************************************/ |
459 | |
702 | |
460 | static struct ev_idle **idles; |
|
|
461 | static int idlemax, idlecnt; |
|
|
462 | |
|
|
463 | static struct ev_prepare **prepares; |
|
|
464 | static int preparemax, preparecnt; |
|
|
465 | |
|
|
466 | static struct ev_check **checks; |
|
|
467 | static int checkmax, checkcnt; |
|
|
468 | |
|
|
469 | /*****************************************************************************/ |
|
|
470 | |
|
|
471 | static struct ev_child *childs [PID_HASHSIZE]; |
703 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
704 | |
|
|
705 | #ifndef _WIN32 |
|
|
706 | |
472 | static struct ev_signal childev; |
707 | static struct ev_signal childev; |
473 | |
|
|
474 | #ifndef WIN32 |
|
|
475 | |
708 | |
476 | #ifndef WCONTINUED |
709 | #ifndef WCONTINUED |
477 | # define WCONTINUED 0 |
710 | # define WCONTINUED 0 |
478 | #endif |
711 | #endif |
479 | |
712 | |
480 | static void |
713 | static void |
481 | child_reap (struct ev_signal *sw, int chain, int pid, int status) |
714 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
482 | { |
715 | { |
483 | struct ev_child *w; |
716 | struct ev_child *w; |
484 | |
717 | |
485 | for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next) |
718 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
486 | if (w->pid == pid || !w->pid) |
719 | if (w->pid == pid || !w->pid) |
487 | { |
720 | { |
488 | w->priority = sw->priority; /* need to do it *now* */ |
721 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
489 | w->rpid = pid; |
722 | w->rpid = pid; |
490 | w->rstatus = status; |
723 | w->rstatus = status; |
491 | printf ("rpid %p %d %d\n", w, pid, w->pid);//D |
|
|
492 | event ((W)w, EV_CHILD); |
724 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
493 | } |
725 | } |
494 | } |
726 | } |
495 | |
727 | |
496 | static void |
728 | static void |
497 | childcb (struct ev_signal *sw, int revents) |
729 | childcb (EV_P_ struct ev_signal *sw, int revents) |
498 | { |
730 | { |
499 | int pid, status; |
731 | int pid, status; |
500 | |
732 | |
501 | printf ("chld %x\n", revents);//D |
|
|
502 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
733 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
503 | { |
734 | { |
504 | /* make sure we are called again until all childs have been reaped */ |
735 | /* make sure we are called again until all childs have been reaped */ |
|
|
736 | /* we need to do it this way so that the callback gets called before we continue */ |
505 | event ((W)sw, EV_SIGNAL); |
737 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
506 | |
738 | |
507 | child_reap (sw, pid, pid, status); |
739 | child_reap (EV_A_ sw, pid, pid, status); |
508 | child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
740 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
509 | } |
741 | } |
510 | } |
742 | } |
511 | |
743 | |
512 | #endif |
744 | #endif |
513 | |
745 | |
514 | /*****************************************************************************/ |
746 | /*****************************************************************************/ |
515 | |
747 | |
|
|
748 | #if EV_USE_PORT |
|
|
749 | # include "ev_port.c" |
|
|
750 | #endif |
516 | #if EV_USE_KQUEUE |
751 | #if EV_USE_KQUEUE |
517 | # include "ev_kqueue.c" |
752 | # include "ev_kqueue.c" |
518 | #endif |
753 | #endif |
519 | #if EV_USE_EPOLL |
754 | #if EV_USE_EPOLL |
520 | # include "ev_epoll.c" |
755 | # include "ev_epoll.c" |
… | |
… | |
536 | ev_version_minor (void) |
771 | ev_version_minor (void) |
537 | { |
772 | { |
538 | return EV_VERSION_MINOR; |
773 | return EV_VERSION_MINOR; |
539 | } |
774 | } |
540 | |
775 | |
541 | /* return true if we are running with elevated privileges and ignore env variables */ |
776 | /* return true if we are running with elevated privileges and should ignore env variables */ |
542 | static int |
777 | static int |
543 | enable_secure () |
778 | enable_secure (void) |
544 | { |
779 | { |
|
|
780 | #ifdef _WIN32 |
|
|
781 | return 0; |
|
|
782 | #else |
545 | return getuid () != geteuid () |
783 | return getuid () != geteuid () |
546 | || getgid () != getegid (); |
784 | || getgid () != getegid (); |
|
|
785 | #endif |
547 | } |
786 | } |
548 | |
787 | |
549 | int ev_init (int methods) |
788 | unsigned int |
|
|
789 | ev_supported_backends (void) |
550 | { |
790 | { |
551 | if (!ev_method) |
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_backend (EV_P) |
|
|
822 | { |
|
|
823 | return backend; |
|
|
824 | } |
|
|
825 | |
|
|
826 | static void |
|
|
827 | loop_init (EV_P_ unsigned int flags) |
|
|
828 | { |
|
|
829 | if (!backend) |
552 | { |
830 | { |
553 | #if EV_USE_MONOTONIC |
831 | #if EV_USE_MONOTONIC |
554 | { |
832 | { |
555 | struct timespec ts; |
833 | struct timespec ts; |
556 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
834 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
557 | have_monotonic = 1; |
835 | have_monotonic = 1; |
558 | } |
836 | } |
559 | #endif |
837 | #endif |
560 | |
838 | |
561 | ev_now = ev_time (); |
839 | ev_rt_now = ev_time (); |
562 | now = get_clock (); |
840 | mn_now = get_clock (); |
563 | now_floor = now; |
841 | now_floor = mn_now; |
564 | diff = ev_now - now; |
842 | rtmn_diff = ev_rt_now - mn_now; |
565 | |
843 | |
566 | if (pipe (sigpipe)) |
844 | if (!(flags & EVFLAG_NOENV) |
567 | return 0; |
845 | && !enable_secure () |
568 | |
846 | && getenv ("LIBEV_FLAGS")) |
569 | if (methods == EVMETHOD_AUTO) |
|
|
570 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
|
|
571 | methods = atoi (getenv ("LIBEV_METHODS")); |
847 | flags = atoi (getenv ("LIBEV_FLAGS")); |
572 | else |
|
|
573 | methods = EVMETHOD_ANY; |
|
|
574 | |
848 | |
575 | ev_method = 0; |
849 | if (!(flags & 0x0000ffffUL)) |
|
|
850 | flags |= ev_recommended_backends (); |
|
|
851 | |
|
|
852 | backend = 0; |
|
|
853 | #if EV_USE_PORT |
|
|
854 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
855 | #endif |
576 | #if EV_USE_KQUEUE |
856 | #if EV_USE_KQUEUE |
577 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
857 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
578 | #endif |
858 | #endif |
579 | #if EV_USE_EPOLL |
859 | #if EV_USE_EPOLL |
580 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
860 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
581 | #endif |
861 | #endif |
582 | #if EV_USE_POLL |
862 | #if EV_USE_POLL |
583 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
863 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
584 | #endif |
864 | #endif |
585 | #if EV_USE_SELECT |
865 | #if EV_USE_SELECT |
586 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
866 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
587 | #endif |
867 | #endif |
588 | |
868 | |
589 | if (ev_method) |
869 | ev_init (&sigev, sigcb); |
|
|
870 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
871 | } |
|
|
872 | } |
|
|
873 | |
|
|
874 | static void |
|
|
875 | loop_destroy (EV_P) |
|
|
876 | { |
|
|
877 | int i; |
|
|
878 | |
|
|
879 | #if EV_USE_PORT |
|
|
880 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
881 | #endif |
|
|
882 | #if EV_USE_KQUEUE |
|
|
883 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
884 | #endif |
|
|
885 | #if EV_USE_EPOLL |
|
|
886 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
887 | #endif |
|
|
888 | #if EV_USE_POLL |
|
|
889 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
890 | #endif |
|
|
891 | #if EV_USE_SELECT |
|
|
892 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
893 | #endif |
|
|
894 | |
|
|
895 | for (i = NUMPRI; i--; ) |
|
|
896 | array_free (pending, [i]); |
|
|
897 | |
|
|
898 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
899 | array_free (fdchange, EMPTY0); |
|
|
900 | array_free (timer, EMPTY0); |
|
|
901 | #if EV_PERIODICS |
|
|
902 | array_free (periodic, EMPTY0); |
|
|
903 | #endif |
|
|
904 | array_free (idle, EMPTY0); |
|
|
905 | array_free (prepare, EMPTY0); |
|
|
906 | array_free (check, EMPTY0); |
|
|
907 | |
|
|
908 | backend = 0; |
|
|
909 | } |
|
|
910 | |
|
|
911 | static void |
|
|
912 | loop_fork (EV_P) |
|
|
913 | { |
|
|
914 | #if EV_USE_PORT |
|
|
915 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
916 | #endif |
|
|
917 | #if EV_USE_KQUEUE |
|
|
918 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
919 | #endif |
|
|
920 | #if EV_USE_EPOLL |
|
|
921 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
922 | #endif |
|
|
923 | |
|
|
924 | if (ev_is_active (&sigev)) |
|
|
925 | { |
|
|
926 | /* default loop */ |
|
|
927 | |
|
|
928 | ev_ref (EV_A); |
|
|
929 | ev_io_stop (EV_A_ &sigev); |
|
|
930 | close (sigpipe [0]); |
|
|
931 | close (sigpipe [1]); |
|
|
932 | |
|
|
933 | while (pipe (sigpipe)) |
|
|
934 | syserr ("(libev) error creating pipe"); |
|
|
935 | |
|
|
936 | siginit (EV_A); |
|
|
937 | } |
|
|
938 | |
|
|
939 | postfork = 0; |
|
|
940 | } |
|
|
941 | |
|
|
942 | #if EV_MULTIPLICITY |
|
|
943 | struct ev_loop * |
|
|
944 | ev_loop_new (unsigned int flags) |
|
|
945 | { |
|
|
946 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
947 | |
|
|
948 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
949 | |
|
|
950 | loop_init (EV_A_ flags); |
|
|
951 | |
|
|
952 | if (ev_backend (EV_A)) |
|
|
953 | return loop; |
|
|
954 | |
|
|
955 | return 0; |
|
|
956 | } |
|
|
957 | |
|
|
958 | void |
|
|
959 | ev_loop_destroy (EV_P) |
|
|
960 | { |
|
|
961 | loop_destroy (EV_A); |
|
|
962 | ev_free (loop); |
|
|
963 | } |
|
|
964 | |
|
|
965 | void |
|
|
966 | ev_loop_fork (EV_P) |
|
|
967 | { |
|
|
968 | postfork = 1; |
|
|
969 | } |
|
|
970 | |
|
|
971 | #endif |
|
|
972 | |
|
|
973 | #if EV_MULTIPLICITY |
|
|
974 | struct ev_loop * |
|
|
975 | ev_default_loop_init (unsigned int flags) |
|
|
976 | #else |
|
|
977 | int |
|
|
978 | ev_default_loop (unsigned int flags) |
|
|
979 | #endif |
|
|
980 | { |
|
|
981 | if (sigpipe [0] == sigpipe [1]) |
|
|
982 | if (pipe (sigpipe)) |
|
|
983 | return 0; |
|
|
984 | |
|
|
985 | if (!ev_default_loop_ptr) |
|
|
986 | { |
|
|
987 | #if EV_MULTIPLICITY |
|
|
988 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
989 | #else |
|
|
990 | ev_default_loop_ptr = 1; |
|
|
991 | #endif |
|
|
992 | |
|
|
993 | loop_init (EV_A_ flags); |
|
|
994 | |
|
|
995 | if (ev_backend (EV_A)) |
590 | { |
996 | { |
591 | ev_watcher_init (&sigev, sigcb); |
|
|
592 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
593 | siginit (); |
997 | siginit (EV_A); |
594 | |
998 | |
595 | #ifndef WIN32 |
999 | #ifndef _WIN32 |
596 | ev_signal_init (&childev, childcb, SIGCHLD); |
1000 | ev_signal_init (&childev, childcb, SIGCHLD); |
597 | ev_set_priority (&childev, EV_MAXPRI); |
1001 | ev_set_priority (&childev, EV_MAXPRI); |
598 | ev_signal_start (&childev); |
1002 | ev_signal_start (EV_A_ &childev); |
|
|
1003 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
599 | #endif |
1004 | #endif |
600 | } |
1005 | } |
|
|
1006 | else |
|
|
1007 | ev_default_loop_ptr = 0; |
601 | } |
1008 | } |
602 | |
1009 | |
603 | return ev_method; |
1010 | return ev_default_loop_ptr; |
|
|
1011 | } |
|
|
1012 | |
|
|
1013 | void |
|
|
1014 | ev_default_destroy (void) |
|
|
1015 | { |
|
|
1016 | #if EV_MULTIPLICITY |
|
|
1017 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1018 | #endif |
|
|
1019 | |
|
|
1020 | #ifndef _WIN32 |
|
|
1021 | ev_ref (EV_A); /* child watcher */ |
|
|
1022 | ev_signal_stop (EV_A_ &childev); |
|
|
1023 | #endif |
|
|
1024 | |
|
|
1025 | ev_ref (EV_A); /* signal watcher */ |
|
|
1026 | ev_io_stop (EV_A_ &sigev); |
|
|
1027 | |
|
|
1028 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1029 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1030 | |
|
|
1031 | loop_destroy (EV_A); |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | void |
|
|
1035 | ev_default_fork (void) |
|
|
1036 | { |
|
|
1037 | #if EV_MULTIPLICITY |
|
|
1038 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1039 | #endif |
|
|
1040 | |
|
|
1041 | if (backend) |
|
|
1042 | postfork = 1; |
604 | } |
1043 | } |
605 | |
1044 | |
606 | /*****************************************************************************/ |
1045 | /*****************************************************************************/ |
607 | |
1046 | |
608 | void |
|
|
609 | ev_fork_prepare (void) |
|
|
610 | { |
|
|
611 | /* nop */ |
|
|
612 | } |
|
|
613 | |
|
|
614 | void |
|
|
615 | ev_fork_parent (void) |
|
|
616 | { |
|
|
617 | /* nop */ |
|
|
618 | } |
|
|
619 | |
|
|
620 | void |
|
|
621 | ev_fork_child (void) |
|
|
622 | { |
|
|
623 | #if EV_USE_EPOLL |
|
|
624 | if (ev_method == EVMETHOD_EPOLL) |
|
|
625 | epoll_postfork_child (); |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | ev_io_stop (&sigev); |
|
|
629 | close (sigpipe [0]); |
|
|
630 | close (sigpipe [1]); |
|
|
631 | pipe (sigpipe); |
|
|
632 | siginit (); |
|
|
633 | } |
|
|
634 | |
|
|
635 | /*****************************************************************************/ |
|
|
636 | |
|
|
637 | static void |
1047 | static int |
|
|
1048 | any_pending (EV_P) |
|
|
1049 | { |
|
|
1050 | int pri; |
|
|
1051 | |
|
|
1052 | for (pri = NUMPRI; pri--; ) |
|
|
1053 | if (pendingcnt [pri]) |
|
|
1054 | return 1; |
|
|
1055 | |
|
|
1056 | return 0; |
|
|
1057 | } |
|
|
1058 | |
|
|
1059 | inline void |
638 | call_pending (void) |
1060 | call_pending (EV_P) |
639 | { |
1061 | { |
640 | int pri; |
1062 | int pri; |
641 | |
1063 | |
642 | for (pri = NUMPRI; pri--; ) |
1064 | for (pri = NUMPRI; pri--; ) |
643 | while (pendingcnt [pri]) |
1065 | while (pendingcnt [pri]) |
644 | { |
1066 | { |
645 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1067 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
646 | |
1068 | |
647 | if (p->w) |
1069 | if (expect_true (p->w)) |
648 | { |
1070 | { |
649 | p->w->pending = 0; |
1071 | p->w->pending = 0; |
650 | p->w->cb (p->w, p->events); |
1072 | EV_CB_INVOKE (p->w, p->events); |
651 | } |
1073 | } |
652 | } |
1074 | } |
653 | } |
1075 | } |
654 | |
1076 | |
655 | static void |
1077 | inline void |
656 | timers_reify (void) |
1078 | timers_reify (EV_P) |
657 | { |
1079 | { |
658 | while (timercnt && timers [0]->at <= now) |
1080 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
659 | { |
1081 | { |
660 | struct ev_timer *w = timers [0]; |
1082 | struct ev_timer *w = timers [0]; |
|
|
1083 | |
|
|
1084 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
661 | |
1085 | |
662 | /* first reschedule or stop timer */ |
1086 | /* first reschedule or stop timer */ |
663 | if (w->repeat) |
1087 | if (w->repeat) |
664 | { |
1088 | { |
665 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1089 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1090 | |
666 | w->at = now + w->repeat; |
1091 | ((WT)w)->at += w->repeat; |
|
|
1092 | if (((WT)w)->at < mn_now) |
|
|
1093 | ((WT)w)->at = mn_now; |
|
|
1094 | |
667 | downheap ((WT *)timers, timercnt, 0); |
1095 | downheap ((WT *)timers, timercnt, 0); |
668 | } |
1096 | } |
669 | else |
1097 | else |
670 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1098 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
671 | |
1099 | |
672 | event ((W)w, EV_TIMEOUT); |
1100 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
673 | } |
1101 | } |
674 | } |
1102 | } |
675 | |
1103 | |
676 | static void |
1104 | #if EV_PERIODICS |
|
|
1105 | inline void |
677 | periodics_reify (void) |
1106 | periodics_reify (EV_P) |
678 | { |
1107 | { |
679 | while (periodiccnt && periodics [0]->at <= ev_now) |
1108 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
680 | { |
1109 | { |
681 | struct ev_periodic *w = periodics [0]; |
1110 | struct ev_periodic *w = periodics [0]; |
682 | |
1111 | |
|
|
1112 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1113 | |
683 | /* first reschedule or stop timer */ |
1114 | /* first reschedule or stop timer */ |
684 | if (w->interval) |
1115 | if (w->reschedule_cb) |
685 | { |
1116 | { |
|
|
1117 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1118 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1119 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1120 | } |
|
|
1121 | else if (w->interval) |
|
|
1122 | { |
686 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1123 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
687 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1124 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
688 | downheap ((WT *)periodics, periodiccnt, 0); |
1125 | downheap ((WT *)periodics, periodiccnt, 0); |
689 | } |
1126 | } |
690 | else |
1127 | else |
691 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1128 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
692 | |
1129 | |
693 | event ((W)w, EV_PERIODIC); |
1130 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
694 | } |
1131 | } |
695 | } |
1132 | } |
696 | |
1133 | |
697 | static void |
1134 | static void |
698 | periodics_reschedule (ev_tstamp diff) |
1135 | periodics_reschedule (EV_P) |
699 | { |
1136 | { |
700 | int i; |
1137 | int i; |
701 | |
1138 | |
702 | /* adjust periodics after time jump */ |
1139 | /* adjust periodics after time jump */ |
703 | for (i = 0; i < periodiccnt; ++i) |
1140 | for (i = 0; i < periodiccnt; ++i) |
704 | { |
1141 | { |
705 | struct ev_periodic *w = periodics [i]; |
1142 | struct ev_periodic *w = periodics [i]; |
706 | |
1143 | |
|
|
1144 | if (w->reschedule_cb) |
|
|
1145 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
707 | if (w->interval) |
1146 | else if (w->interval) |
708 | { |
|
|
709 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1147 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
710 | |
|
|
711 | if (fabs (diff) >= 1e-4) |
|
|
712 | { |
|
|
713 | ev_periodic_stop (w); |
|
|
714 | ev_periodic_start (w); |
|
|
715 | |
|
|
716 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
717 | } |
|
|
718 | } |
|
|
719 | } |
1148 | } |
720 | } |
|
|
721 | |
1149 | |
722 | static int |
1150 | /* now rebuild the heap */ |
|
|
1151 | for (i = periodiccnt >> 1; i--; ) |
|
|
1152 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1153 | } |
|
|
1154 | #endif |
|
|
1155 | |
|
|
1156 | inline int |
723 | time_update_monotonic (void) |
1157 | time_update_monotonic (EV_P) |
724 | { |
1158 | { |
725 | now = get_clock (); |
1159 | mn_now = get_clock (); |
726 | |
1160 | |
727 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
1161 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
728 | { |
1162 | { |
729 | ev_now = now + diff; |
1163 | ev_rt_now = rtmn_diff + mn_now; |
730 | return 0; |
1164 | return 0; |
731 | } |
1165 | } |
732 | else |
1166 | else |
733 | { |
1167 | { |
734 | now_floor = now; |
1168 | now_floor = mn_now; |
735 | ev_now = ev_time (); |
1169 | ev_rt_now = ev_time (); |
736 | return 1; |
1170 | return 1; |
737 | } |
1171 | } |
738 | } |
1172 | } |
739 | |
1173 | |
740 | static void |
1174 | inline void |
741 | time_update (void) |
1175 | time_update (EV_P) |
742 | { |
1176 | { |
743 | int i; |
1177 | int i; |
744 | |
1178 | |
745 | #if EV_USE_MONOTONIC |
1179 | #if EV_USE_MONOTONIC |
746 | if (expect_true (have_monotonic)) |
1180 | if (expect_true (have_monotonic)) |
747 | { |
1181 | { |
748 | if (time_update_monotonic ()) |
1182 | if (time_update_monotonic (EV_A)) |
749 | { |
1183 | { |
750 | ev_tstamp odiff = diff; |
1184 | ev_tstamp odiff = rtmn_diff; |
751 | |
1185 | |
752 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1186 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
753 | { |
1187 | { |
754 | diff = ev_now - now; |
1188 | rtmn_diff = ev_rt_now - mn_now; |
755 | |
1189 | |
756 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1190 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
757 | return; /* all is well */ |
1191 | return; /* all is well */ |
758 | |
1192 | |
759 | ev_now = ev_time (); |
1193 | ev_rt_now = ev_time (); |
760 | now = get_clock (); |
1194 | mn_now = get_clock (); |
761 | now_floor = now; |
1195 | now_floor = mn_now; |
762 | } |
1196 | } |
763 | |
1197 | |
|
|
1198 | # if EV_PERIODICS |
764 | periodics_reschedule (diff - odiff); |
1199 | periodics_reschedule (EV_A); |
|
|
1200 | # endif |
765 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1201 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1202 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
766 | } |
1203 | } |
767 | } |
1204 | } |
768 | else |
1205 | else |
769 | #endif |
1206 | #endif |
770 | { |
1207 | { |
771 | ev_now = ev_time (); |
1208 | ev_rt_now = ev_time (); |
772 | |
1209 | |
773 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1210 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
774 | { |
1211 | { |
|
|
1212 | #if EV_PERIODICS |
775 | periodics_reschedule (ev_now - now); |
1213 | periodics_reschedule (EV_A); |
|
|
1214 | #endif |
776 | |
1215 | |
777 | /* adjust timers. this is easy, as the offset is the same for all */ |
1216 | /* adjust timers. this is easy, as the offset is the same for all */ |
778 | for (i = 0; i < timercnt; ++i) |
1217 | for (i = 0; i < timercnt; ++i) |
779 | timers [i]->at += diff; |
1218 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
780 | } |
1219 | } |
781 | |
1220 | |
782 | now = ev_now; |
1221 | mn_now = ev_rt_now; |
783 | } |
1222 | } |
784 | } |
1223 | } |
785 | |
1224 | |
786 | int ev_loop_done; |
1225 | void |
|
|
1226 | ev_ref (EV_P) |
|
|
1227 | { |
|
|
1228 | ++activecnt; |
|
|
1229 | } |
787 | |
1230 | |
|
|
1231 | void |
|
|
1232 | ev_unref (EV_P) |
|
|
1233 | { |
|
|
1234 | --activecnt; |
|
|
1235 | } |
|
|
1236 | |
|
|
1237 | static int loop_done; |
|
|
1238 | |
|
|
1239 | void |
788 | void ev_loop (int flags) |
1240 | ev_loop (EV_P_ int flags) |
789 | { |
1241 | { |
790 | double block; |
1242 | double block; |
791 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1243 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
792 | |
1244 | |
793 | do |
1245 | while (activecnt) |
794 | { |
1246 | { |
795 | /* queue check watchers (and execute them) */ |
1247 | /* queue check watchers (and execute them) */ |
796 | if (expect_false (preparecnt)) |
1248 | if (expect_false (preparecnt)) |
797 | { |
1249 | { |
798 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1250 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
799 | call_pending (); |
1251 | call_pending (EV_A); |
800 | } |
1252 | } |
801 | |
1253 | |
|
|
1254 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1255 | if (expect_false (postfork)) |
|
|
1256 | loop_fork (EV_A); |
|
|
1257 | |
802 | /* update fd-related kernel structures */ |
1258 | /* update fd-related kernel structures */ |
803 | fd_reify (); |
1259 | fd_reify (EV_A); |
804 | |
1260 | |
805 | /* calculate blocking time */ |
1261 | /* calculate blocking time */ |
806 | |
1262 | |
807 | /* we only need this for !monotonic clockor timers, but as we basically |
1263 | /* we only need this for !monotonic clock or timers, but as we basically |
808 | always have timers, we just calculate it always */ |
1264 | always have timers, we just calculate it always */ |
809 | #if EV_USE_MONOTONIC |
1265 | #if EV_USE_MONOTONIC |
810 | if (expect_true (have_monotonic)) |
1266 | if (expect_true (have_monotonic)) |
811 | time_update_monotonic (); |
1267 | time_update_monotonic (EV_A); |
812 | else |
1268 | else |
813 | #endif |
1269 | #endif |
814 | { |
1270 | { |
815 | ev_now = ev_time (); |
1271 | ev_rt_now = ev_time (); |
816 | now = ev_now; |
1272 | mn_now = ev_rt_now; |
817 | } |
1273 | } |
818 | |
1274 | |
819 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1275 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
820 | block = 0.; |
1276 | block = 0.; |
821 | else |
1277 | else |
822 | { |
1278 | { |
823 | block = MAX_BLOCKTIME; |
1279 | block = MAX_BLOCKTIME; |
824 | |
1280 | |
825 | if (timercnt) |
1281 | if (timercnt) |
826 | { |
1282 | { |
827 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1283 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
828 | if (block > to) block = to; |
1284 | if (block > to) block = to; |
829 | } |
1285 | } |
830 | |
1286 | |
|
|
1287 | #if EV_PERIODICS |
831 | if (periodiccnt) |
1288 | if (periodiccnt) |
832 | { |
1289 | { |
833 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1290 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
834 | if (block > to) block = to; |
1291 | if (block > to) block = to; |
835 | } |
1292 | } |
|
|
1293 | #endif |
836 | |
1294 | |
837 | if (block < 0.) block = 0.; |
1295 | if (expect_false (block < 0.)) block = 0.; |
838 | } |
1296 | } |
839 | |
1297 | |
840 | method_poll (block); |
1298 | backend_poll (EV_A_ block); |
841 | |
1299 | |
842 | /* update ev_now, do magic */ |
1300 | /* update ev_rt_now, do magic */ |
843 | time_update (); |
1301 | time_update (EV_A); |
844 | |
1302 | |
845 | /* queue pending timers and reschedule them */ |
1303 | /* queue pending timers and reschedule them */ |
846 | timers_reify (); /* relative timers called last */ |
1304 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1305 | #if EV_PERIODICS |
847 | periodics_reify (); /* absolute timers called first */ |
1306 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1307 | #endif |
848 | |
1308 | |
849 | /* queue idle watchers unless io or timers are pending */ |
1309 | /* queue idle watchers unless io or timers are pending */ |
850 | if (!pendingcnt) |
1310 | if (idlecnt && !any_pending (EV_A)) |
851 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1311 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
852 | |
1312 | |
853 | /* queue check watchers, to be executed first */ |
1313 | /* queue check watchers, to be executed first */ |
854 | if (checkcnt) |
1314 | if (expect_false (checkcnt)) |
855 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1315 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
856 | |
1316 | |
857 | call_pending (); |
1317 | call_pending (EV_A); |
858 | } |
|
|
859 | while (!ev_loop_done); |
|
|
860 | |
1318 | |
|
|
1319 | if (expect_false (loop_done)) |
|
|
1320 | break; |
|
|
1321 | } |
|
|
1322 | |
861 | if (ev_loop_done != 2) |
1323 | if (loop_done != 2) |
862 | ev_loop_done = 0; |
1324 | loop_done = 0; |
|
|
1325 | } |
|
|
1326 | |
|
|
1327 | void |
|
|
1328 | ev_unloop (EV_P_ int how) |
|
|
1329 | { |
|
|
1330 | loop_done = how; |
863 | } |
1331 | } |
864 | |
1332 | |
865 | /*****************************************************************************/ |
1333 | /*****************************************************************************/ |
866 | |
1334 | |
867 | static void |
1335 | inline void |
868 | wlist_add (WL *head, WL elem) |
1336 | wlist_add (WL *head, WL elem) |
869 | { |
1337 | { |
870 | elem->next = *head; |
1338 | elem->next = *head; |
871 | *head = elem; |
1339 | *head = elem; |
872 | } |
1340 | } |
873 | |
1341 | |
874 | static void |
1342 | inline void |
875 | wlist_del (WL *head, WL elem) |
1343 | wlist_del (WL *head, WL elem) |
876 | { |
1344 | { |
877 | while (*head) |
1345 | while (*head) |
878 | { |
1346 | { |
879 | if (*head == elem) |
1347 | if (*head == elem) |
… | |
… | |
884 | |
1352 | |
885 | head = &(*head)->next; |
1353 | head = &(*head)->next; |
886 | } |
1354 | } |
887 | } |
1355 | } |
888 | |
1356 | |
889 | static void |
1357 | inline void |
890 | ev_clear_pending (W w) |
1358 | ev_clear_pending (EV_P_ W w) |
891 | { |
1359 | { |
892 | if (w->pending) |
1360 | if (w->pending) |
893 | { |
1361 | { |
894 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1362 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
895 | w->pending = 0; |
1363 | w->pending = 0; |
896 | } |
1364 | } |
897 | } |
1365 | } |
898 | |
1366 | |
899 | static void |
1367 | inline void |
900 | ev_start (W w, int active) |
1368 | ev_start (EV_P_ W w, int active) |
901 | { |
1369 | { |
902 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1370 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
903 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1371 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
904 | |
1372 | |
905 | w->active = active; |
1373 | w->active = active; |
|
|
1374 | ev_ref (EV_A); |
906 | } |
1375 | } |
907 | |
1376 | |
908 | static void |
1377 | inline void |
909 | ev_stop (W w) |
1378 | ev_stop (EV_P_ W w) |
910 | { |
1379 | { |
|
|
1380 | ev_unref (EV_A); |
911 | w->active = 0; |
1381 | w->active = 0; |
912 | } |
1382 | } |
913 | |
1383 | |
914 | /*****************************************************************************/ |
1384 | /*****************************************************************************/ |
915 | |
1385 | |
916 | void |
1386 | void |
917 | ev_io_start (struct ev_io *w) |
1387 | ev_io_start (EV_P_ struct ev_io *w) |
918 | { |
1388 | { |
919 | int fd = w->fd; |
1389 | int fd = w->fd; |
920 | |
1390 | |
921 | if (ev_is_active (w)) |
1391 | if (expect_false (ev_is_active (w))) |
922 | return; |
1392 | return; |
923 | |
1393 | |
924 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1394 | assert (("ev_io_start called with negative fd", fd >= 0)); |
925 | |
1395 | |
926 | ev_start ((W)w, 1); |
1396 | ev_start (EV_A_ (W)w, 1); |
927 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1397 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
928 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1398 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
929 | |
1399 | |
930 | fd_change (fd); |
1400 | fd_change (EV_A_ fd); |
931 | } |
1401 | } |
932 | |
1402 | |
933 | void |
1403 | void |
934 | ev_io_stop (struct ev_io *w) |
1404 | ev_io_stop (EV_P_ struct ev_io *w) |
935 | { |
1405 | { |
936 | ev_clear_pending ((W)w); |
1406 | ev_clear_pending (EV_A_ (W)w); |
937 | if (!ev_is_active (w)) |
1407 | if (expect_false (!ev_is_active (w))) |
938 | return; |
1408 | return; |
939 | |
1409 | |
|
|
1410 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1411 | |
940 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1412 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
941 | ev_stop ((W)w); |
1413 | ev_stop (EV_A_ (W)w); |
942 | |
1414 | |
943 | fd_change (w->fd); |
1415 | fd_change (EV_A_ w->fd); |
944 | } |
1416 | } |
945 | |
1417 | |
946 | void |
1418 | void |
947 | ev_timer_start (struct ev_timer *w) |
1419 | ev_timer_start (EV_P_ struct ev_timer *w) |
948 | { |
1420 | { |
949 | if (ev_is_active (w)) |
1421 | if (expect_false (ev_is_active (w))) |
950 | return; |
1422 | return; |
951 | |
1423 | |
952 | w->at += now; |
1424 | ((WT)w)->at += mn_now; |
953 | |
1425 | |
954 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1426 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
955 | |
1427 | |
956 | ev_start ((W)w, ++timercnt); |
1428 | ev_start (EV_A_ (W)w, ++timercnt); |
957 | array_needsize (timers, timermax, timercnt, ); |
1429 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
958 | timers [timercnt - 1] = w; |
1430 | timers [timercnt - 1] = w; |
959 | upheap ((WT *)timers, timercnt - 1); |
1431 | upheap ((WT *)timers, timercnt - 1); |
960 | } |
|
|
961 | |
1432 | |
|
|
1433 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1434 | } |
|
|
1435 | |
962 | void |
1436 | void |
963 | ev_timer_stop (struct ev_timer *w) |
1437 | ev_timer_stop (EV_P_ struct ev_timer *w) |
964 | { |
1438 | { |
965 | ev_clear_pending ((W)w); |
1439 | ev_clear_pending (EV_A_ (W)w); |
966 | if (!ev_is_active (w)) |
1440 | if (expect_false (!ev_is_active (w))) |
967 | return; |
1441 | return; |
968 | |
1442 | |
|
|
1443 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1444 | |
969 | if (w->active < timercnt--) |
1445 | if (expect_true (((W)w)->active < timercnt--)) |
970 | { |
1446 | { |
971 | timers [w->active - 1] = timers [timercnt]; |
1447 | timers [((W)w)->active - 1] = timers [timercnt]; |
972 | downheap ((WT *)timers, timercnt, w->active - 1); |
1448 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
973 | } |
1449 | } |
974 | |
1450 | |
975 | w->at = w->repeat; |
1451 | ((WT)w)->at -= mn_now; |
976 | |
1452 | |
977 | ev_stop ((W)w); |
1453 | ev_stop (EV_A_ (W)w); |
978 | } |
1454 | } |
979 | |
1455 | |
980 | void |
1456 | void |
981 | ev_timer_again (struct ev_timer *w) |
1457 | ev_timer_again (EV_P_ struct ev_timer *w) |
982 | { |
1458 | { |
983 | if (ev_is_active (w)) |
1459 | if (ev_is_active (w)) |
984 | { |
1460 | { |
985 | if (w->repeat) |
1461 | if (w->repeat) |
986 | { |
1462 | { |
987 | w->at = now + w->repeat; |
1463 | ((WT)w)->at = mn_now + w->repeat; |
988 | downheap ((WT *)timers, timercnt, w->active - 1); |
1464 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
989 | } |
1465 | } |
990 | else |
1466 | else |
991 | ev_timer_stop (w); |
1467 | ev_timer_stop (EV_A_ w); |
992 | } |
1468 | } |
993 | else if (w->repeat) |
1469 | else if (w->repeat) |
|
|
1470 | { |
|
|
1471 | w->at = w->repeat; |
994 | ev_timer_start (w); |
1472 | ev_timer_start (EV_A_ w); |
|
|
1473 | } |
995 | } |
1474 | } |
996 | |
1475 | |
|
|
1476 | #if EV_PERIODICS |
997 | void |
1477 | void |
998 | ev_periodic_start (struct ev_periodic *w) |
1478 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
999 | { |
1479 | { |
1000 | if (ev_is_active (w)) |
1480 | if (expect_false (ev_is_active (w))) |
1001 | return; |
1481 | return; |
1002 | |
1482 | |
|
|
1483 | if (w->reschedule_cb) |
|
|
1484 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1485 | else if (w->interval) |
|
|
1486 | { |
1003 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1487 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1004 | |
|
|
1005 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1488 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1006 | if (w->interval) |
|
|
1007 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1489 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1490 | } |
1008 | |
1491 | |
1009 | ev_start ((W)w, ++periodiccnt); |
1492 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1010 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1493 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1011 | periodics [periodiccnt - 1] = w; |
1494 | periodics [periodiccnt - 1] = w; |
1012 | upheap ((WT *)periodics, periodiccnt - 1); |
1495 | upheap ((WT *)periodics, periodiccnt - 1); |
1013 | } |
|
|
1014 | |
1496 | |
|
|
1497 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1498 | } |
|
|
1499 | |
1015 | void |
1500 | void |
1016 | ev_periodic_stop (struct ev_periodic *w) |
1501 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1017 | { |
1502 | { |
1018 | ev_clear_pending ((W)w); |
1503 | ev_clear_pending (EV_A_ (W)w); |
1019 | if (!ev_is_active (w)) |
1504 | if (expect_false (!ev_is_active (w))) |
1020 | return; |
1505 | return; |
1021 | |
1506 | |
|
|
1507 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1508 | |
1022 | if (w->active < periodiccnt--) |
1509 | if (expect_true (((W)w)->active < periodiccnt--)) |
1023 | { |
1510 | { |
1024 | periodics [w->active - 1] = periodics [periodiccnt]; |
1511 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1025 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1512 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1026 | } |
1513 | } |
1027 | |
1514 | |
1028 | ev_stop ((W)w); |
1515 | ev_stop (EV_A_ (W)w); |
|
|
1516 | } |
|
|
1517 | |
|
|
1518 | void |
|
|
1519 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1520 | { |
|
|
1521 | /* TODO: use adjustheap and recalculation */ |
|
|
1522 | ev_periodic_stop (EV_A_ w); |
|
|
1523 | ev_periodic_start (EV_A_ w); |
|
|
1524 | } |
|
|
1525 | #endif |
|
|
1526 | |
|
|
1527 | void |
|
|
1528 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1529 | { |
|
|
1530 | if (expect_false (ev_is_active (w))) |
|
|
1531 | return; |
|
|
1532 | |
|
|
1533 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1534 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1535 | idles [idlecnt - 1] = w; |
|
|
1536 | } |
|
|
1537 | |
|
|
1538 | void |
|
|
1539 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1540 | { |
|
|
1541 | ev_clear_pending (EV_A_ (W)w); |
|
|
1542 | if (expect_false (!ev_is_active (w))) |
|
|
1543 | return; |
|
|
1544 | |
|
|
1545 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1546 | ev_stop (EV_A_ (W)w); |
|
|
1547 | } |
|
|
1548 | |
|
|
1549 | void |
|
|
1550 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1551 | { |
|
|
1552 | if (expect_false (ev_is_active (w))) |
|
|
1553 | return; |
|
|
1554 | |
|
|
1555 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1556 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1557 | prepares [preparecnt - 1] = w; |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | void |
|
|
1561 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1562 | { |
|
|
1563 | ev_clear_pending (EV_A_ (W)w); |
|
|
1564 | if (expect_false (!ev_is_active (w))) |
|
|
1565 | return; |
|
|
1566 | |
|
|
1567 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1568 | ev_stop (EV_A_ (W)w); |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | void |
|
|
1572 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1573 | { |
|
|
1574 | if (expect_false (ev_is_active (w))) |
|
|
1575 | return; |
|
|
1576 | |
|
|
1577 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1578 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1579 | checks [checkcnt - 1] = w; |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | void |
|
|
1583 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1584 | { |
|
|
1585 | ev_clear_pending (EV_A_ (W)w); |
|
|
1586 | if (expect_false (!ev_is_active (w))) |
|
|
1587 | return; |
|
|
1588 | |
|
|
1589 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1590 | ev_stop (EV_A_ (W)w); |
1029 | } |
1591 | } |
1030 | |
1592 | |
1031 | #ifndef SA_RESTART |
1593 | #ifndef SA_RESTART |
1032 | # define SA_RESTART 0 |
1594 | # define SA_RESTART 0 |
1033 | #endif |
1595 | #endif |
1034 | |
1596 | |
1035 | void |
1597 | void |
1036 | ev_signal_start (struct ev_signal *w) |
1598 | ev_signal_start (EV_P_ struct ev_signal *w) |
1037 | { |
1599 | { |
|
|
1600 | #if EV_MULTIPLICITY |
|
|
1601 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1602 | #endif |
1038 | if (ev_is_active (w)) |
1603 | if (expect_false (ev_is_active (w))) |
1039 | return; |
1604 | return; |
1040 | |
1605 | |
1041 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1606 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1042 | |
1607 | |
1043 | ev_start ((W)w, 1); |
1608 | ev_start (EV_A_ (W)w, 1); |
1044 | array_needsize (signals, signalmax, w->signum, signals_init); |
1609 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1045 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1610 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1046 | |
1611 | |
1047 | if (!w->next) |
1612 | if (!((WL)w)->next) |
1048 | { |
1613 | { |
|
|
1614 | #if _WIN32 |
|
|
1615 | signal (w->signum, sighandler); |
|
|
1616 | #else |
1049 | struct sigaction sa; |
1617 | struct sigaction sa; |
1050 | sa.sa_handler = sighandler; |
1618 | sa.sa_handler = sighandler; |
1051 | sigfillset (&sa.sa_mask); |
1619 | sigfillset (&sa.sa_mask); |
1052 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1620 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1053 | sigaction (w->signum, &sa, 0); |
1621 | sigaction (w->signum, &sa, 0); |
|
|
1622 | #endif |
1054 | } |
1623 | } |
1055 | } |
1624 | } |
1056 | |
1625 | |
1057 | void |
1626 | void |
1058 | ev_signal_stop (struct ev_signal *w) |
1627 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1059 | { |
1628 | { |
1060 | ev_clear_pending ((W)w); |
1629 | ev_clear_pending (EV_A_ (W)w); |
1061 | if (!ev_is_active (w)) |
1630 | if (expect_false (!ev_is_active (w))) |
1062 | return; |
1631 | return; |
1063 | |
1632 | |
1064 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1633 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1065 | ev_stop ((W)w); |
1634 | ev_stop (EV_A_ (W)w); |
1066 | |
1635 | |
1067 | if (!signals [w->signum - 1].head) |
1636 | if (!signals [w->signum - 1].head) |
1068 | signal (w->signum, SIG_DFL); |
1637 | signal (w->signum, SIG_DFL); |
1069 | } |
1638 | } |
1070 | |
1639 | |
1071 | void |
1640 | void |
1072 | ev_idle_start (struct ev_idle *w) |
1641 | ev_child_start (EV_P_ struct ev_child *w) |
1073 | { |
1642 | { |
|
|
1643 | #if EV_MULTIPLICITY |
|
|
1644 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1645 | #endif |
1074 | if (ev_is_active (w)) |
1646 | if (expect_false (ev_is_active (w))) |
1075 | return; |
1647 | return; |
1076 | |
1648 | |
1077 | ev_start ((W)w, ++idlecnt); |
1649 | ev_start (EV_A_ (W)w, 1); |
1078 | array_needsize (idles, idlemax, idlecnt, ); |
1650 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1079 | idles [idlecnt - 1] = w; |
|
|
1080 | } |
1651 | } |
1081 | |
1652 | |
1082 | void |
1653 | void |
1083 | ev_idle_stop (struct ev_idle *w) |
1654 | ev_child_stop (EV_P_ struct ev_child *w) |
1084 | { |
1655 | { |
1085 | ev_clear_pending ((W)w); |
1656 | ev_clear_pending (EV_A_ (W)w); |
1086 | if (ev_is_active (w)) |
1657 | if (expect_false (!ev_is_active (w))) |
1087 | return; |
1658 | return; |
1088 | |
1659 | |
1089 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1090 | ev_stop ((W)w); |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | void |
|
|
1094 | ev_prepare_start (struct ev_prepare *w) |
|
|
1095 | { |
|
|
1096 | if (ev_is_active (w)) |
|
|
1097 | return; |
|
|
1098 | |
|
|
1099 | ev_start ((W)w, ++preparecnt); |
|
|
1100 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1101 | prepares [preparecnt - 1] = w; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | void |
|
|
1105 | ev_prepare_stop (struct ev_prepare *w) |
|
|
1106 | { |
|
|
1107 | ev_clear_pending ((W)w); |
|
|
1108 | if (ev_is_active (w)) |
|
|
1109 | return; |
|
|
1110 | |
|
|
1111 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1112 | ev_stop ((W)w); |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | void |
|
|
1116 | ev_check_start (struct ev_check *w) |
|
|
1117 | { |
|
|
1118 | if (ev_is_active (w)) |
|
|
1119 | return; |
|
|
1120 | |
|
|
1121 | ev_start ((W)w, ++checkcnt); |
|
|
1122 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1123 | checks [checkcnt - 1] = w; |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | void |
|
|
1127 | ev_check_stop (struct ev_check *w) |
|
|
1128 | { |
|
|
1129 | ev_clear_pending ((W)w); |
|
|
1130 | if (ev_is_active (w)) |
|
|
1131 | return; |
|
|
1132 | |
|
|
1133 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1134 | ev_stop ((W)w); |
|
|
1135 | } |
|
|
1136 | |
|
|
1137 | void |
|
|
1138 | ev_child_start (struct ev_child *w) |
|
|
1139 | { |
|
|
1140 | if (ev_is_active (w)) |
|
|
1141 | return; |
|
|
1142 | |
|
|
1143 | ev_start ((W)w, 1); |
|
|
1144 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | void |
|
|
1148 | ev_child_stop (struct ev_child *w) |
|
|
1149 | { |
|
|
1150 | ev_clear_pending ((W)w); |
|
|
1151 | if (ev_is_active (w)) |
|
|
1152 | return; |
|
|
1153 | |
|
|
1154 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1660 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1155 | ev_stop ((W)w); |
1661 | ev_stop (EV_A_ (W)w); |
1156 | } |
1662 | } |
1157 | |
1663 | |
1158 | /*****************************************************************************/ |
1664 | /*****************************************************************************/ |
1159 | |
1665 | |
1160 | struct ev_once |
1666 | struct ev_once |
… | |
… | |
1164 | void (*cb)(int revents, void *arg); |
1670 | void (*cb)(int revents, void *arg); |
1165 | void *arg; |
1671 | void *arg; |
1166 | }; |
1672 | }; |
1167 | |
1673 | |
1168 | static void |
1674 | static void |
1169 | once_cb (struct ev_once *once, int revents) |
1675 | once_cb (EV_P_ struct ev_once *once, int revents) |
1170 | { |
1676 | { |
1171 | void (*cb)(int revents, void *arg) = once->cb; |
1677 | void (*cb)(int revents, void *arg) = once->cb; |
1172 | void *arg = once->arg; |
1678 | void *arg = once->arg; |
1173 | |
1679 | |
1174 | ev_io_stop (&once->io); |
1680 | ev_io_stop (EV_A_ &once->io); |
1175 | ev_timer_stop (&once->to); |
1681 | ev_timer_stop (EV_A_ &once->to); |
1176 | free (once); |
1682 | ev_free (once); |
1177 | |
1683 | |
1178 | cb (revents, arg); |
1684 | cb (revents, arg); |
1179 | } |
1685 | } |
1180 | |
1686 | |
1181 | static void |
1687 | static void |
1182 | once_cb_io (struct ev_io *w, int revents) |
1688 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1183 | { |
1689 | { |
1184 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1690 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1185 | } |
1691 | } |
1186 | |
1692 | |
1187 | static void |
1693 | static void |
1188 | once_cb_to (struct ev_timer *w, int revents) |
1694 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1189 | { |
1695 | { |
1190 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1696 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1191 | } |
1697 | } |
1192 | |
1698 | |
1193 | void |
1699 | void |
1194 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1700 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1195 | { |
1701 | { |
1196 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1702 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1197 | |
1703 | |
1198 | if (!once) |
1704 | if (expect_false (!once)) |
|
|
1705 | { |
1199 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1706 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1200 | else |
1707 | return; |
1201 | { |
1708 | } |
|
|
1709 | |
1202 | once->cb = cb; |
1710 | once->cb = cb; |
1203 | once->arg = arg; |
1711 | once->arg = arg; |
1204 | |
1712 | |
1205 | ev_watcher_init (&once->io, once_cb_io); |
1713 | ev_init (&once->io, once_cb_io); |
1206 | if (fd >= 0) |
1714 | if (fd >= 0) |
1207 | { |
1715 | { |
1208 | ev_io_set (&once->io, fd, events); |
1716 | ev_io_set (&once->io, fd, events); |
1209 | ev_io_start (&once->io); |
1717 | ev_io_start (EV_A_ &once->io); |
1210 | } |
1718 | } |
1211 | |
1719 | |
1212 | ev_watcher_init (&once->to, once_cb_to); |
1720 | ev_init (&once->to, once_cb_to); |
1213 | if (timeout >= 0.) |
1721 | if (timeout >= 0.) |
1214 | { |
1722 | { |
1215 | ev_timer_set (&once->to, timeout, 0.); |
1723 | ev_timer_set (&once->to, timeout, 0.); |
1216 | ev_timer_start (&once->to); |
1724 | ev_timer_start (EV_A_ &once->to); |
1217 | } |
|
|
1218 | } |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | /*****************************************************************************/ |
|
|
1222 | |
|
|
1223 | #if 0 |
|
|
1224 | |
|
|
1225 | struct ev_io wio; |
|
|
1226 | |
|
|
1227 | static void |
|
|
1228 | sin_cb (struct ev_io *w, int revents) |
|
|
1229 | { |
|
|
1230 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | static void |
|
|
1234 | ocb (struct ev_timer *w, int revents) |
|
|
1235 | { |
|
|
1236 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1237 | ev_timer_stop (w); |
|
|
1238 | ev_timer_start (w); |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | static void |
|
|
1242 | scb (struct ev_signal *w, int revents) |
|
|
1243 | { |
|
|
1244 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1245 | ev_io_stop (&wio); |
|
|
1246 | ev_io_start (&wio); |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | static void |
|
|
1250 | gcb (struct ev_signal *w, int revents) |
|
|
1251 | { |
|
|
1252 | fprintf (stderr, "generic %x\n", revents); |
|
|
1253 | |
|
|
1254 | } |
|
|
1255 | |
|
|
1256 | int main (void) |
|
|
1257 | { |
|
|
1258 | ev_init (0); |
|
|
1259 | |
|
|
1260 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1261 | ev_io_start (&wio); |
|
|
1262 | |
|
|
1263 | struct ev_timer t[10000]; |
|
|
1264 | |
|
|
1265 | #if 0 |
|
|
1266 | int i; |
|
|
1267 | for (i = 0; i < 10000; ++i) |
|
|
1268 | { |
1725 | } |
1269 | struct ev_timer *w = t + i; |
|
|
1270 | ev_watcher_init (w, ocb, i); |
|
|
1271 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1272 | ev_timer_start (w); |
|
|
1273 | if (drand48 () < 0.5) |
|
|
1274 | ev_timer_stop (w); |
|
|
1275 | } |
|
|
1276 | #endif |
|
|
1277 | |
|
|
1278 | struct ev_timer t1; |
|
|
1279 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1280 | ev_timer_start (&t1); |
|
|
1281 | |
|
|
1282 | struct ev_signal sig; |
|
|
1283 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1284 | ev_signal_start (&sig); |
|
|
1285 | |
|
|
1286 | struct ev_check cw; |
|
|
1287 | ev_check_init (&cw, gcb); |
|
|
1288 | ev_check_start (&cw); |
|
|
1289 | |
|
|
1290 | struct ev_idle iw; |
|
|
1291 | ev_idle_init (&iw, gcb); |
|
|
1292 | ev_idle_start (&iw); |
|
|
1293 | |
|
|
1294 | ev_loop (0); |
|
|
1295 | |
|
|
1296 | return 0; |
|
|
1297 | } |
1726 | } |
1298 | |
1727 | |
|
|
1728 | #ifdef __cplusplus |
|
|
1729 | } |
1299 | #endif |
1730 | #endif |
1300 | |
1731 | |
1301 | |
|
|
1302 | |
|
|
1303 | |
|
|