… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
31 | #if EV_USE_CONFIG_H |
31 | #ifndef EV_EMBED |
32 | # include "config.h" |
32 | # include "config.h" |
33 | #endif |
33 | #endif |
34 | |
34 | |
35 | #include <math.h> |
35 | #include <math.h> |
36 | #include <stdlib.h> |
36 | #include <stdlib.h> |
… | |
… | |
42 | #include <stdio.h> |
42 | #include <stdio.h> |
43 | |
43 | |
44 | #include <assert.h> |
44 | #include <assert.h> |
45 | #include <errno.h> |
45 | #include <errno.h> |
46 | #include <sys/types.h> |
46 | #include <sys/types.h> |
|
|
47 | #ifndef WIN32 |
47 | #include <sys/wait.h> |
48 | # include <sys/wait.h> |
|
|
49 | #endif |
48 | #include <sys/time.h> |
50 | #include <sys/time.h> |
49 | #include <time.h> |
51 | #include <time.h> |
50 | |
52 | |
|
|
53 | /**/ |
|
|
54 | |
51 | #ifndef EV_USE_MONOTONIC |
55 | #ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 1 |
56 | # define EV_USE_MONOTONIC 1 |
53 | #endif |
57 | #endif |
|
|
58 | |
|
|
59 | #ifndef EV_USE_SELECT |
|
|
60 | # define EV_USE_SELECT 1 |
|
|
61 | #endif |
|
|
62 | |
|
|
63 | #ifndef EV_USEV_POLL |
|
|
64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
|
|
65 | #endif |
|
|
66 | |
|
|
67 | #ifndef EV_USE_EPOLL |
|
|
68 | # define EV_USE_EPOLL 0 |
|
|
69 | #endif |
|
|
70 | |
|
|
71 | #ifndef EV_USE_KQUEUE |
|
|
72 | # define EV_USE_KQUEUE 0 |
|
|
73 | #endif |
|
|
74 | |
|
|
75 | #ifndef EV_USE_REALTIME |
|
|
76 | # define EV_USE_REALTIME 1 |
|
|
77 | #endif |
|
|
78 | |
|
|
79 | /**/ |
54 | |
80 | |
55 | #ifndef CLOCK_MONOTONIC |
81 | #ifndef CLOCK_MONOTONIC |
56 | # undef EV_USE_MONOTONIC |
82 | # undef EV_USE_MONOTONIC |
57 | # define EV_USE_MONOTONIC 0 |
83 | # define EV_USE_MONOTONIC 0 |
58 | #endif |
84 | #endif |
59 | |
85 | |
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 |
86 | #ifndef CLOCK_REALTIME |
|
|
87 | # undef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 0 |
88 | # define EV_USE_REALTIME 0 |
70 | #endif |
89 | #endif |
71 | #ifndef EV_USE_REALTIME |
90 | |
72 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
91 | /**/ |
73 | #endif |
|
|
74 | |
92 | |
75 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
93 | #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) */ |
94 | #define MAX_BLOCKTIME 59.731 /* 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 */ |
95 | #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 */ |
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
79 | |
97 | |
|
|
98 | #ifndef EV_EMBED |
80 | #include "ev.h" |
99 | # include "ev.h" |
|
|
100 | #endif |
|
|
101 | |
|
|
102 | #if __GNUC__ >= 3 |
|
|
103 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
104 | # define inline inline |
|
|
105 | #else |
|
|
106 | # define expect(expr,value) (expr) |
|
|
107 | # define inline static |
|
|
108 | #endif |
|
|
109 | |
|
|
110 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
111 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
112 | |
|
|
113 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
114 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
81 | |
115 | |
82 | typedef struct ev_watcher *W; |
116 | typedef struct ev_watcher *W; |
83 | typedef struct ev_watcher_list *WL; |
117 | typedef struct ev_watcher_list *WL; |
84 | typedef struct ev_watcher_time *WT; |
118 | typedef struct ev_watcher_time *WT; |
85 | |
119 | |
86 | static ev_tstamp now, diff; /* monotonic clock */ |
120 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
87 | ev_tstamp ev_now; |
|
|
88 | int ev_method; |
|
|
89 | |
|
|
90 | static int have_monotonic; /* runtime */ |
|
|
91 | |
|
|
92 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
|
|
93 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
94 | static void (*method_poll)(ev_tstamp timeout); |
|
|
95 | |
121 | |
96 | /*****************************************************************************/ |
122 | /*****************************************************************************/ |
97 | |
123 | |
98 | ev_tstamp |
124 | typedef struct |
|
|
125 | { |
|
|
126 | struct ev_watcher_list *head; |
|
|
127 | unsigned char events; |
|
|
128 | unsigned char reify; |
|
|
129 | } ANFD; |
|
|
130 | |
|
|
131 | typedef struct |
|
|
132 | { |
|
|
133 | W w; |
|
|
134 | int events; |
|
|
135 | } ANPENDING; |
|
|
136 | |
|
|
137 | #if EV_MULTIPLICITY |
|
|
138 | |
|
|
139 | struct ev_loop |
|
|
140 | { |
|
|
141 | # define VAR(name,decl) decl; |
|
|
142 | # include "ev_vars.h" |
|
|
143 | }; |
|
|
144 | # undef VAR |
|
|
145 | # include "ev_wrap.h" |
|
|
146 | |
|
|
147 | #else |
|
|
148 | |
|
|
149 | # define VAR(name,decl) static decl; |
|
|
150 | # include "ev_vars.h" |
|
|
151 | # undef VAR |
|
|
152 | |
|
|
153 | #endif |
|
|
154 | |
|
|
155 | /*****************************************************************************/ |
|
|
156 | |
|
|
157 | inline ev_tstamp |
99 | ev_time (void) |
158 | ev_time (void) |
100 | { |
159 | { |
101 | #if EV_USE_REALTIME |
160 | #if EV_USE_REALTIME |
102 | struct timespec ts; |
161 | struct timespec ts; |
103 | clock_gettime (CLOCK_REALTIME, &ts); |
162 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
107 | gettimeofday (&tv, 0); |
166 | gettimeofday (&tv, 0); |
108 | return tv.tv_sec + tv.tv_usec * 1e-6; |
167 | return tv.tv_sec + tv.tv_usec * 1e-6; |
109 | #endif |
168 | #endif |
110 | } |
169 | } |
111 | |
170 | |
112 | static ev_tstamp |
171 | inline ev_tstamp |
113 | get_clock (void) |
172 | get_clock (void) |
114 | { |
173 | { |
115 | #if EV_USE_MONOTONIC |
174 | #if EV_USE_MONOTONIC |
116 | if (have_monotonic) |
175 | if (expect_true (have_monotonic)) |
117 | { |
176 | { |
118 | struct timespec ts; |
177 | struct timespec ts; |
119 | clock_gettime (CLOCK_MONOTONIC, &ts); |
178 | clock_gettime (CLOCK_MONOTONIC, &ts); |
120 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
179 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
121 | } |
180 | } |
122 | #endif |
181 | #endif |
123 | |
182 | |
124 | return ev_time (); |
183 | return ev_time (); |
125 | } |
184 | } |
126 | |
185 | |
|
|
186 | ev_tstamp |
|
|
187 | ev_now (EV_P) |
|
|
188 | { |
|
|
189 | return rt_now; |
|
|
190 | } |
|
|
191 | |
127 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
192 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
128 | |
193 | |
129 | #define array_needsize(base,cur,cnt,init) \ |
194 | #define array_needsize(base,cur,cnt,init) \ |
130 | if ((cnt) > cur) \ |
195 | if (expect_false ((cnt) > cur)) \ |
131 | { \ |
196 | { \ |
132 | int newcnt = cur; \ |
197 | int newcnt = cur; \ |
133 | do \ |
198 | do \ |
134 | { \ |
199 | { \ |
135 | newcnt = array_roundsize (base, newcnt << 1); \ |
200 | newcnt = array_roundsize (base, newcnt << 1); \ |
… | |
… | |
141 | cur = newcnt; \ |
206 | cur = newcnt; \ |
142 | } |
207 | } |
143 | |
208 | |
144 | /*****************************************************************************/ |
209 | /*****************************************************************************/ |
145 | |
210 | |
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 | |
|
|
156 | static void |
211 | static void |
157 | anfds_init (ANFD *base, int count) |
212 | anfds_init (ANFD *base, int count) |
158 | { |
213 | { |
159 | while (count--) |
214 | while (count--) |
160 | { |
215 | { |
… | |
… | |
164 | |
219 | |
165 | ++base; |
220 | ++base; |
166 | } |
221 | } |
167 | } |
222 | } |
168 | |
223 | |
169 | typedef struct |
|
|
170 | { |
|
|
171 | W w; |
|
|
172 | int events; |
|
|
173 | } ANPENDING; |
|
|
174 | |
|
|
175 | static ANPENDING *pendings; |
|
|
176 | static int pendingmax, pendingcnt; |
|
|
177 | |
|
|
178 | static void |
224 | static void |
179 | event (W w, int events) |
225 | event (EV_P_ W w, int events) |
180 | { |
226 | { |
181 | if (w->pending) |
227 | if (w->pending) |
182 | { |
228 | { |
183 | pendings [w->pending - 1].events |= events; |
229 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
184 | return; |
230 | return; |
185 | } |
231 | } |
186 | |
232 | |
187 | w->pending = ++pendingcnt; |
233 | w->pending = ++pendingcnt [ABSPRI (w)]; |
188 | array_needsize (pendings, pendingmax, pendingcnt, ); |
234 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
189 | pendings [pendingcnt - 1].w = w; |
235 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
190 | pendings [pendingcnt - 1].events = events; |
236 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
191 | } |
237 | } |
192 | |
238 | |
193 | static void |
239 | static void |
194 | queue_events (W *events, int eventcnt, int type) |
240 | queue_events (EV_P_ W *events, int eventcnt, int type) |
195 | { |
241 | { |
196 | int i; |
242 | int i; |
197 | |
243 | |
198 | for (i = 0; i < eventcnt; ++i) |
244 | for (i = 0; i < eventcnt; ++i) |
199 | event (events [i], type); |
245 | event (EV_A_ events [i], type); |
200 | } |
246 | } |
201 | |
247 | |
202 | static void |
248 | static void |
203 | fd_event (int fd, int events) |
249 | fd_event (EV_P_ int fd, int events) |
204 | { |
250 | { |
205 | ANFD *anfd = anfds + fd; |
251 | ANFD *anfd = anfds + fd; |
206 | struct ev_io *w; |
252 | struct ev_io *w; |
207 | |
253 | |
208 | for (w = anfd->head; w; w = w->next) |
254 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
209 | { |
255 | { |
210 | int ev = w->events & events; |
256 | int ev = w->events & events; |
211 | |
257 | |
212 | if (ev) |
258 | if (ev) |
213 | event ((W)w, ev); |
259 | event (EV_A_ (W)w, ev); |
214 | } |
260 | } |
215 | } |
261 | } |
216 | |
262 | |
217 | /*****************************************************************************/ |
263 | /*****************************************************************************/ |
218 | |
264 | |
219 | static int *fdchanges; |
|
|
220 | static int fdchangemax, fdchangecnt; |
|
|
221 | |
|
|
222 | static void |
265 | static void |
223 | fd_reify (void) |
266 | fd_reify (EV_P) |
224 | { |
267 | { |
225 | int i; |
268 | int i; |
226 | |
269 | |
227 | for (i = 0; i < fdchangecnt; ++i) |
270 | for (i = 0; i < fdchangecnt; ++i) |
228 | { |
271 | { |
… | |
… | |
230 | ANFD *anfd = anfds + fd; |
273 | ANFD *anfd = anfds + fd; |
231 | struct ev_io *w; |
274 | struct ev_io *w; |
232 | |
275 | |
233 | int events = 0; |
276 | int events = 0; |
234 | |
277 | |
235 | for (w = anfd->head; w; w = w->next) |
278 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
236 | events |= w->events; |
279 | events |= w->events; |
237 | |
280 | |
238 | anfd->reify = 0; |
281 | anfd->reify = 0; |
239 | |
282 | |
240 | if (anfd->events != events) |
283 | if (anfd->events != events) |
241 | { |
284 | { |
242 | method_modify (fd, anfd->events, events); |
285 | method_modify (EV_A_ fd, anfd->events, events); |
243 | anfd->events = events; |
286 | anfd->events = events; |
244 | } |
287 | } |
245 | } |
288 | } |
246 | |
289 | |
247 | fdchangecnt = 0; |
290 | fdchangecnt = 0; |
248 | } |
291 | } |
249 | |
292 | |
250 | static void |
293 | static void |
251 | fd_change (int fd) |
294 | fd_change (EV_P_ int fd) |
252 | { |
295 | { |
253 | if (anfds [fd].reify || fdchangecnt < 0) |
296 | if (anfds [fd].reify || fdchangecnt < 0) |
254 | return; |
297 | return; |
255 | |
298 | |
256 | anfds [fd].reify = 1; |
299 | anfds [fd].reify = 1; |
… | |
… | |
258 | ++fdchangecnt; |
301 | ++fdchangecnt; |
259 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
302 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
260 | fdchanges [fdchangecnt - 1] = fd; |
303 | fdchanges [fdchangecnt - 1] = fd; |
261 | } |
304 | } |
262 | |
305 | |
|
|
306 | static void |
|
|
307 | fd_kill (EV_P_ int fd) |
|
|
308 | { |
|
|
309 | struct ev_io *w; |
|
|
310 | |
|
|
311 | while ((w = (struct ev_io *)anfds [fd].head)) |
|
|
312 | { |
|
|
313 | ev_io_stop (EV_A_ w); |
|
|
314 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
315 | } |
|
|
316 | } |
|
|
317 | |
263 | /* called on EBADF to verify fds */ |
318 | /* called on EBADF to verify fds */ |
264 | static void |
319 | static void |
265 | fd_recheck (void) |
320 | fd_ebadf (EV_P) |
266 | { |
321 | { |
267 | int fd; |
322 | int fd; |
268 | |
323 | |
269 | for (fd = 0; fd < anfdmax; ++fd) |
324 | for (fd = 0; fd < anfdmax; ++fd) |
270 | if (anfds [fd].events) |
325 | if (anfds [fd].events) |
271 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
326 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
272 | while (anfds [fd].head) |
327 | fd_kill (EV_A_ fd); |
|
|
328 | } |
|
|
329 | |
|
|
330 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
331 | static void |
|
|
332 | fd_enomem (EV_P) |
|
|
333 | { |
|
|
334 | int fd = anfdmax; |
|
|
335 | |
|
|
336 | while (fd--) |
|
|
337 | if (anfds [fd].events) |
273 | { |
338 | { |
274 | ev_io_stop (anfds [fd].head); |
339 | close (fd); |
275 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE); |
340 | fd_kill (EV_A_ fd); |
|
|
341 | return; |
276 | } |
342 | } |
|
|
343 | } |
|
|
344 | |
|
|
345 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
|
|
346 | static void |
|
|
347 | fd_rearm_all (EV_P) |
|
|
348 | { |
|
|
349 | int fd; |
|
|
350 | |
|
|
351 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
352 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
353 | if (anfds [fd].events) |
|
|
354 | { |
|
|
355 | anfds [fd].events = 0; |
|
|
356 | fd_change (fd); |
|
|
357 | } |
277 | } |
358 | } |
278 | |
359 | |
279 | /*****************************************************************************/ |
360 | /*****************************************************************************/ |
280 | |
361 | |
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 |
362 | static void |
288 | upheap (WT *timers, int k) |
363 | upheap (WT *heap, int k) |
289 | { |
364 | { |
290 | WT w = timers [k]; |
365 | WT w = heap [k]; |
291 | |
366 | |
292 | while (k && timers [k >> 1]->at > w->at) |
367 | while (k && heap [k >> 1]->at > w->at) |
293 | { |
368 | { |
294 | timers [k] = timers [k >> 1]; |
369 | heap [k] = heap [k >> 1]; |
295 | timers [k]->active = k + 1; |
370 | heap [k]->active = k + 1; |
296 | k >>= 1; |
371 | k >>= 1; |
297 | } |
372 | } |
298 | |
373 | |
299 | timers [k] = w; |
374 | heap [k] = w; |
300 | timers [k]->active = k + 1; |
375 | heap [k]->active = k + 1; |
301 | |
376 | |
302 | } |
377 | } |
303 | |
378 | |
304 | static void |
379 | static void |
305 | downheap (WT *timers, int N, int k) |
380 | downheap (WT *heap, int N, int k) |
306 | { |
381 | { |
307 | WT w = timers [k]; |
382 | WT w = heap [k]; |
308 | |
383 | |
309 | while (k < (N >> 1)) |
384 | while (k < (N >> 1)) |
310 | { |
385 | { |
311 | int j = k << 1; |
386 | int j = k << 1; |
312 | |
387 | |
313 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
388 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
314 | ++j; |
389 | ++j; |
315 | |
390 | |
316 | if (w->at <= timers [j]->at) |
391 | if (w->at <= heap [j]->at) |
317 | break; |
392 | break; |
318 | |
393 | |
319 | timers [k] = timers [j]; |
394 | heap [k] = heap [j]; |
320 | timers [k]->active = k + 1; |
395 | heap [k]->active = k + 1; |
321 | k = j; |
396 | k = j; |
322 | } |
397 | } |
323 | |
398 | |
324 | timers [k] = w; |
399 | heap [k] = w; |
325 | timers [k]->active = k + 1; |
400 | heap [k]->active = k + 1; |
326 | } |
401 | } |
327 | |
402 | |
328 | /*****************************************************************************/ |
403 | /*****************************************************************************/ |
329 | |
404 | |
330 | typedef struct |
405 | typedef struct |
331 | { |
406 | { |
332 | struct ev_signal *head; |
407 | struct ev_watcher_list *head; |
333 | sig_atomic_t volatile gotsig; |
408 | sig_atomic_t volatile gotsig; |
334 | } ANSIG; |
409 | } ANSIG; |
335 | |
410 | |
336 | static ANSIG *signals; |
411 | static ANSIG *signals; |
337 | static int signalmax; |
412 | static int signalmax; |
338 | |
413 | |
339 | static int sigpipe [2]; |
414 | static int sigpipe [2]; |
340 | static sig_atomic_t volatile gotsig; |
415 | static sig_atomic_t volatile gotsig; |
341 | static struct ev_io sigev; |
|
|
342 | |
416 | |
343 | static void |
417 | static void |
344 | signals_init (ANSIG *base, int count) |
418 | signals_init (ANSIG *base, int count) |
345 | { |
419 | { |
346 | while (count--) |
420 | while (count--) |
… | |
… | |
357 | { |
431 | { |
358 | signals [signum - 1].gotsig = 1; |
432 | signals [signum - 1].gotsig = 1; |
359 | |
433 | |
360 | if (!gotsig) |
434 | if (!gotsig) |
361 | { |
435 | { |
|
|
436 | int old_errno = errno; |
362 | gotsig = 1; |
437 | gotsig = 1; |
363 | write (sigpipe [1], &signum, 1); |
438 | write (sigpipe [1], &signum, 1); |
|
|
439 | errno = old_errno; |
364 | } |
440 | } |
365 | } |
441 | } |
366 | |
442 | |
367 | static void |
443 | static void |
368 | sigcb (struct ev_io *iow, int revents) |
444 | sigcb (EV_P_ struct ev_io *iow, int revents) |
369 | { |
445 | { |
370 | struct ev_signal *w; |
446 | struct ev_watcher_list *w; |
371 | int sig; |
447 | int signum; |
372 | |
448 | |
373 | read (sigpipe [0], &revents, 1); |
449 | read (sigpipe [0], &revents, 1); |
374 | gotsig = 0; |
450 | gotsig = 0; |
375 | |
451 | |
376 | for (sig = signalmax; sig--; ) |
452 | for (signum = signalmax; signum--; ) |
377 | if (signals [sig].gotsig) |
453 | if (signals [signum].gotsig) |
378 | { |
454 | { |
379 | signals [sig].gotsig = 0; |
455 | signals [signum].gotsig = 0; |
380 | |
456 | |
381 | for (w = signals [sig].head; w; w = w->next) |
457 | for (w = signals [signum].head; w; w = w->next) |
382 | event ((W)w, EV_SIGNAL); |
458 | event (EV_A_ (W)w, EV_SIGNAL); |
383 | } |
459 | } |
384 | } |
460 | } |
385 | |
461 | |
386 | static void |
462 | static void |
387 | siginit (void) |
463 | siginit (EV_P) |
388 | { |
464 | { |
|
|
465 | #ifndef WIN32 |
389 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
466 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
390 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
467 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
391 | |
468 | |
392 | /* rather than sort out wether we really need nb, set it */ |
469 | /* rather than sort out wether we really need nb, set it */ |
393 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
470 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
394 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
471 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
472 | #endif |
395 | |
473 | |
396 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
474 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
397 | ev_io_start (&sigev); |
475 | ev_io_start (EV_A_ &sigev); |
|
|
476 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
398 | } |
477 | } |
399 | |
478 | |
400 | /*****************************************************************************/ |
479 | /*****************************************************************************/ |
401 | |
480 | |
402 | static struct ev_idle **idles; |
481 | #ifndef WIN32 |
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]; |
|
|
414 | static struct ev_signal childev; |
|
|
415 | |
482 | |
416 | #ifndef WCONTINUED |
483 | #ifndef WCONTINUED |
417 | # define WCONTINUED 0 |
484 | # define WCONTINUED 0 |
418 | #endif |
485 | #endif |
419 | |
486 | |
420 | static void |
487 | static void |
421 | childcb (struct ev_signal *sw, int revents) |
488 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
422 | { |
489 | { |
423 | struct ev_child *w; |
490 | struct ev_child *w; |
|
|
491 | |
|
|
492 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
493 | if (w->pid == pid || !w->pid) |
|
|
494 | { |
|
|
495 | w->priority = sw->priority; /* need to do it *now* */ |
|
|
496 | w->rpid = pid; |
|
|
497 | w->rstatus = status; |
|
|
498 | event (EV_A_ (W)w, EV_CHILD); |
|
|
499 | } |
|
|
500 | } |
|
|
501 | |
|
|
502 | static void |
|
|
503 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
504 | { |
424 | int pid, status; |
505 | int pid, status; |
425 | |
506 | |
426 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
507 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
427 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
508 | { |
428 | if (w->pid == pid || w->pid == -1) |
509 | /* make sure we are called again until all childs have been reaped */ |
429 | { |
510 | event (EV_A_ (W)sw, EV_SIGNAL); |
430 | w->status = status; |
511 | |
431 | event ((W)w, EV_CHILD); |
512 | child_reap (EV_A_ sw, pid, pid, status); |
432 | } |
513 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
|
|
514 | } |
433 | } |
515 | } |
|
|
516 | |
|
|
517 | #endif |
434 | |
518 | |
435 | /*****************************************************************************/ |
519 | /*****************************************************************************/ |
436 | |
520 | |
|
|
521 | #if EV_USE_KQUEUE |
|
|
522 | # include "ev_kqueue.c" |
|
|
523 | #endif |
437 | #if EV_USE_EPOLL |
524 | #if EV_USE_EPOLL |
438 | # include "ev_epoll.c" |
525 | # include "ev_epoll.c" |
439 | #endif |
526 | #endif |
|
|
527 | #if EV_USEV_POLL |
|
|
528 | # include "ev_poll.c" |
|
|
529 | #endif |
440 | #if EV_USE_SELECT |
530 | #if EV_USE_SELECT |
441 | # include "ev_select.c" |
531 | # include "ev_select.c" |
442 | #endif |
532 | #endif |
443 | |
533 | |
444 | int |
534 | int |
… | |
… | |
451 | ev_version_minor (void) |
541 | ev_version_minor (void) |
452 | { |
542 | { |
453 | return EV_VERSION_MINOR; |
543 | return EV_VERSION_MINOR; |
454 | } |
544 | } |
455 | |
545 | |
456 | int ev_init (int flags) |
546 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
547 | static int |
|
|
548 | enable_secure (void) |
457 | { |
549 | { |
|
|
550 | #ifdef WIN32 |
|
|
551 | return 0; |
|
|
552 | #else |
|
|
553 | return getuid () != geteuid () |
|
|
554 | || getgid () != getegid (); |
|
|
555 | #endif |
|
|
556 | } |
|
|
557 | |
|
|
558 | int |
|
|
559 | ev_method (EV_P) |
|
|
560 | { |
|
|
561 | return method; |
|
|
562 | } |
|
|
563 | |
|
|
564 | static void |
|
|
565 | loop_init (EV_P_ int methods) |
|
|
566 | { |
458 | if (!ev_method) |
567 | if (!method) |
459 | { |
568 | { |
460 | #if EV_USE_MONOTONIC |
569 | #if EV_USE_MONOTONIC |
461 | { |
570 | { |
462 | struct timespec ts; |
571 | struct timespec ts; |
463 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
572 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
464 | have_monotonic = 1; |
573 | have_monotonic = 1; |
465 | } |
574 | } |
466 | #endif |
575 | #endif |
467 | |
576 | |
468 | ev_now = ev_time (); |
577 | rt_now = ev_time (); |
469 | now = get_clock (); |
578 | mn_now = get_clock (); |
|
|
579 | now_floor = mn_now; |
470 | diff = ev_now - now; |
580 | rtmn_diff = rt_now - mn_now; |
471 | |
581 | |
472 | if (pipe (sigpipe)) |
582 | if (methods == EVMETHOD_AUTO) |
473 | return 0; |
583 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
474 | |
584 | methods = atoi (getenv ("LIBEV_METHODS")); |
|
|
585 | else |
475 | ev_method = EVMETHOD_NONE; |
586 | methods = EVMETHOD_ANY; |
|
|
587 | |
|
|
588 | method = 0; |
|
|
589 | #if EV_USE_KQUEUE |
|
|
590 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
|
|
591 | #endif |
476 | #if EV_USE_EPOLL |
592 | #if EV_USE_EPOLL |
477 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
593 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
|
|
594 | #endif |
|
|
595 | #if EV_USEV_POLL |
|
|
596 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
478 | #endif |
597 | #endif |
479 | #if EV_USE_SELECT |
598 | #if EV_USE_SELECT |
480 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
599 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
481 | #endif |
600 | #endif |
|
|
601 | } |
|
|
602 | } |
482 | |
603 | |
|
|
604 | void |
|
|
605 | loop_destroy (EV_P) |
|
|
606 | { |
|
|
607 | #if EV_USE_KQUEUE |
|
|
608 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
609 | #endif |
|
|
610 | #if EV_USE_EPOLL |
|
|
611 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
612 | #endif |
|
|
613 | #if EV_USEV_POLL |
|
|
614 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
615 | #endif |
|
|
616 | #if EV_USE_SELECT |
|
|
617 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
618 | #endif |
|
|
619 | |
|
|
620 | method = 0; |
|
|
621 | /*TODO*/ |
|
|
622 | } |
|
|
623 | |
|
|
624 | void |
|
|
625 | loop_fork (EV_P) |
|
|
626 | { |
|
|
627 | /*TODO*/ |
|
|
628 | #if EV_USE_EPOLL |
|
|
629 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
630 | #endif |
|
|
631 | #if EV_USE_KQUEUE |
|
|
632 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
633 | #endif |
|
|
634 | } |
|
|
635 | |
|
|
636 | #if EV_MULTIPLICITY |
|
|
637 | struct ev_loop * |
|
|
638 | ev_loop_new (int methods) |
|
|
639 | { |
|
|
640 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
|
|
641 | |
|
|
642 | loop_init (EV_A_ methods); |
|
|
643 | |
|
|
644 | if (ev_methods (EV_A)) |
|
|
645 | return loop; |
|
|
646 | |
|
|
647 | return 0; |
|
|
648 | } |
|
|
649 | |
|
|
650 | void |
|
|
651 | ev_loop_destroy (EV_P) |
|
|
652 | { |
|
|
653 | loop_destroy (EV_A); |
|
|
654 | free (loop); |
|
|
655 | } |
|
|
656 | |
|
|
657 | void |
|
|
658 | ev_loop_fork (EV_P) |
|
|
659 | { |
|
|
660 | loop_fork (EV_A); |
|
|
661 | } |
|
|
662 | |
|
|
663 | #endif |
|
|
664 | |
|
|
665 | #if EV_MULTIPLICITY |
|
|
666 | struct ev_loop default_loop_struct; |
|
|
667 | static struct ev_loop *default_loop; |
|
|
668 | |
|
|
669 | struct ev_loop * |
|
|
670 | #else |
|
|
671 | static int default_loop; |
|
|
672 | |
|
|
673 | int |
|
|
674 | #endif |
|
|
675 | ev_default_loop (int methods) |
|
|
676 | { |
|
|
677 | if (sigpipe [0] == sigpipe [1]) |
|
|
678 | if (pipe (sigpipe)) |
|
|
679 | return 0; |
|
|
680 | |
|
|
681 | if (!default_loop) |
|
|
682 | { |
|
|
683 | #if EV_MULTIPLICITY |
|
|
684 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
685 | #else |
|
|
686 | default_loop = 1; |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | loop_init (EV_A_ methods); |
|
|
690 | |
483 | if (ev_method) |
691 | if (ev_method (EV_A)) |
484 | { |
692 | { |
485 | ev_watcher_init (&sigev, sigcb); |
693 | ev_watcher_init (&sigev, sigcb); |
|
|
694 | ev_set_priority (&sigev, EV_MAXPRI); |
486 | siginit (); |
695 | siginit (EV_A); |
487 | |
696 | |
|
|
697 | #ifndef WIN32 |
488 | ev_signal_init (&childev, childcb, SIGCHLD); |
698 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
699 | ev_set_priority (&childev, EV_MAXPRI); |
489 | ev_signal_start (&childev); |
700 | ev_signal_start (EV_A_ &childev); |
|
|
701 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
702 | #endif |
490 | } |
703 | } |
|
|
704 | else |
|
|
705 | default_loop = 0; |
491 | } |
706 | } |
492 | |
707 | |
493 | return ev_method; |
708 | return default_loop; |
494 | } |
709 | } |
495 | |
710 | |
496 | /*****************************************************************************/ |
|
|
497 | |
|
|
498 | void |
711 | void |
499 | ev_fork_prepare (void) |
712 | ev_default_destroy (void) |
500 | { |
713 | { |
501 | /* nop */ |
714 | #if EV_MULTIPLICITY |
502 | } |
715 | struct ev_loop *loop = default_loop; |
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 |
716 | #endif |
517 | |
717 | |
|
|
718 | ev_ref (EV_A); /* child watcher */ |
|
|
719 | ev_signal_stop (EV_A_ &childev); |
|
|
720 | |
|
|
721 | ev_ref (EV_A); /* signal watcher */ |
518 | ev_io_stop (&sigev); |
722 | ev_io_stop (EV_A_ &sigev); |
|
|
723 | |
|
|
724 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
725 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
726 | |
|
|
727 | loop_destroy (EV_A); |
|
|
728 | } |
|
|
729 | |
|
|
730 | void |
|
|
731 | ev_default_fork (EV_P) |
|
|
732 | { |
|
|
733 | loop_fork (EV_A); |
|
|
734 | |
|
|
735 | ev_io_stop (EV_A_ &sigev); |
519 | close (sigpipe [0]); |
736 | close (sigpipe [0]); |
520 | close (sigpipe [1]); |
737 | close (sigpipe [1]); |
521 | pipe (sigpipe); |
738 | pipe (sigpipe); |
|
|
739 | |
|
|
740 | ev_ref (EV_A); /* signal watcher */ |
522 | siginit (); |
741 | siginit (EV_A); |
523 | } |
742 | } |
524 | |
743 | |
525 | /*****************************************************************************/ |
744 | /*****************************************************************************/ |
526 | |
745 | |
527 | static void |
746 | static void |
528 | call_pending (void) |
747 | call_pending (EV_P) |
529 | { |
748 | { |
|
|
749 | int pri; |
|
|
750 | |
|
|
751 | for (pri = NUMPRI; pri--; ) |
530 | while (pendingcnt) |
752 | while (pendingcnt [pri]) |
531 | { |
753 | { |
532 | ANPENDING *p = pendings + --pendingcnt; |
754 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
533 | |
755 | |
534 | if (p->w) |
756 | if (p->w) |
535 | { |
757 | { |
536 | p->w->pending = 0; |
758 | p->w->pending = 0; |
537 | p->w->cb (p->w, p->events); |
759 | p->w->cb (EV_A_ p->w, p->events); |
538 | } |
760 | } |
539 | } |
761 | } |
540 | } |
762 | } |
541 | |
763 | |
542 | static void |
764 | static void |
543 | timers_reify (void) |
765 | timers_reify (EV_P) |
544 | { |
766 | { |
545 | while (timercnt && timers [0]->at <= now) |
767 | while (timercnt && timers [0]->at <= mn_now) |
546 | { |
768 | { |
547 | struct ev_timer *w = timers [0]; |
769 | struct ev_timer *w = timers [0]; |
548 | |
770 | |
549 | /* first reschedule or stop timer */ |
771 | /* first reschedule or stop timer */ |
550 | if (w->repeat) |
772 | if (w->repeat) |
551 | { |
773 | { |
552 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
774 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
553 | w->at = now + w->repeat; |
775 | w->at = mn_now + w->repeat; |
554 | downheap ((WT *)timers, timercnt, 0); |
776 | downheap ((WT *)timers, timercnt, 0); |
555 | } |
777 | } |
556 | else |
778 | else |
557 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
779 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
558 | |
780 | |
559 | event ((W)w, EV_TIMEOUT); |
781 | event (EV_A_ (W)w, EV_TIMEOUT); |
560 | } |
782 | } |
561 | } |
783 | } |
562 | |
784 | |
563 | static void |
785 | static void |
564 | periodics_reify (void) |
786 | periodics_reify (EV_P) |
565 | { |
787 | { |
566 | while (periodiccnt && periodics [0]->at <= ev_now) |
788 | while (periodiccnt && periodics [0]->at <= rt_now) |
567 | { |
789 | { |
568 | struct ev_periodic *w = periodics [0]; |
790 | struct ev_periodic *w = periodics [0]; |
569 | |
791 | |
570 | /* first reschedule or stop timer */ |
792 | /* first reschedule or stop timer */ |
571 | if (w->interval) |
793 | if (w->interval) |
572 | { |
794 | { |
573 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
795 | w->at += floor ((rt_now - 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)); |
796 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
575 | downheap ((WT *)periodics, periodiccnt, 0); |
797 | downheap ((WT *)periodics, periodiccnt, 0); |
576 | } |
798 | } |
577 | else |
799 | else |
578 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
800 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
579 | |
801 | |
580 | event ((W)w, EV_PERIODIC); |
802 | event (EV_A_ (W)w, EV_PERIODIC); |
581 | } |
803 | } |
582 | } |
804 | } |
583 | |
805 | |
584 | static void |
806 | static void |
585 | periodics_reschedule (ev_tstamp diff) |
807 | periodics_reschedule (EV_P) |
586 | { |
808 | { |
587 | int i; |
809 | int i; |
588 | |
810 | |
589 | /* adjust periodics after time jump */ |
811 | /* adjust periodics after time jump */ |
590 | for (i = 0; i < periodiccnt; ++i) |
812 | for (i = 0; i < periodiccnt; ++i) |
591 | { |
813 | { |
592 | struct ev_periodic *w = periodics [i]; |
814 | struct ev_periodic *w = periodics [i]; |
593 | |
815 | |
594 | if (w->interval) |
816 | if (w->interval) |
595 | { |
817 | { |
596 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
818 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
597 | |
819 | |
598 | if (fabs (diff) >= 1e-4) |
820 | if (fabs (diff) >= 1e-4) |
599 | { |
821 | { |
600 | ev_periodic_stop (w); |
822 | ev_periodic_stop (EV_A_ w); |
601 | ev_periodic_start (w); |
823 | ev_periodic_start (EV_A_ w); |
602 | |
824 | |
603 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
825 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
604 | } |
826 | } |
605 | } |
827 | } |
606 | } |
828 | } |
607 | } |
829 | } |
608 | |
830 | |
|
|
831 | inline int |
|
|
832 | time_update_monotonic (EV_P) |
|
|
833 | { |
|
|
834 | mn_now = get_clock (); |
|
|
835 | |
|
|
836 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
837 | { |
|
|
838 | rt_now = rtmn_diff + mn_now; |
|
|
839 | return 0; |
|
|
840 | } |
|
|
841 | else |
|
|
842 | { |
|
|
843 | now_floor = mn_now; |
|
|
844 | rt_now = ev_time (); |
|
|
845 | return 1; |
|
|
846 | } |
|
|
847 | } |
|
|
848 | |
609 | static void |
849 | static void |
610 | time_update (void) |
850 | time_update (EV_P) |
611 | { |
851 | { |
612 | int i; |
852 | int i; |
613 | |
853 | |
614 | ev_now = ev_time (); |
854 | #if EV_USE_MONOTONIC |
615 | |
|
|
616 | if (have_monotonic) |
855 | if (expect_true (have_monotonic)) |
617 | { |
856 | { |
618 | ev_tstamp odiff = diff; |
857 | if (time_update_monotonic (EV_A)) |
619 | |
|
|
620 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
621 | { |
858 | { |
622 | now = get_clock (); |
859 | ev_tstamp odiff = rtmn_diff; |
|
|
860 | |
|
|
861 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
862 | { |
623 | diff = ev_now - now; |
863 | rtmn_diff = rt_now - mn_now; |
624 | |
864 | |
625 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
865 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
626 | return; /* all is well */ |
866 | return; /* all is well */ |
627 | |
867 | |
628 | ev_now = ev_time (); |
868 | rt_now = ev_time (); |
|
|
869 | mn_now = get_clock (); |
|
|
870 | now_floor = mn_now; |
|
|
871 | } |
|
|
872 | |
|
|
873 | periodics_reschedule (EV_A); |
|
|
874 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
875 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
629 | } |
876 | } |
630 | |
|
|
631 | periodics_reschedule (diff - odiff); |
|
|
632 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
633 | } |
877 | } |
634 | else |
878 | else |
|
|
879 | #endif |
635 | { |
880 | { |
636 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
881 | rt_now = ev_time (); |
|
|
882 | |
|
|
883 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
637 | { |
884 | { |
638 | periodics_reschedule (ev_now - now); |
885 | periodics_reschedule (EV_A); |
639 | |
886 | |
640 | /* adjust timers. this is easy, as the offset is the same for all */ |
887 | /* adjust timers. this is easy, as the offset is the same for all */ |
641 | for (i = 0; i < timercnt; ++i) |
888 | for (i = 0; i < timercnt; ++i) |
642 | timers [i]->at += diff; |
889 | timers [i]->at += rt_now - mn_now; |
643 | } |
890 | } |
644 | |
891 | |
645 | now = ev_now; |
892 | mn_now = rt_now; |
646 | } |
893 | } |
647 | } |
894 | } |
648 | |
895 | |
649 | int ev_loop_done; |
896 | void |
|
|
897 | ev_ref (EV_P) |
|
|
898 | { |
|
|
899 | ++activecnt; |
|
|
900 | } |
650 | |
901 | |
|
|
902 | void |
|
|
903 | ev_unref (EV_P) |
|
|
904 | { |
|
|
905 | --activecnt; |
|
|
906 | } |
|
|
907 | |
|
|
908 | static int loop_done; |
|
|
909 | |
|
|
910 | void |
651 | void ev_loop (int flags) |
911 | ev_loop (EV_P_ int flags) |
652 | { |
912 | { |
653 | double block; |
913 | double block; |
654 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
914 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
655 | |
915 | |
656 | do |
916 | do |
657 | { |
917 | { |
658 | /* queue check watchers (and execute them) */ |
918 | /* queue check watchers (and execute them) */ |
659 | if (preparecnt) |
919 | if (expect_false (preparecnt)) |
660 | { |
920 | { |
661 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
921 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
662 | call_pending (); |
922 | call_pending (EV_A); |
663 | } |
923 | } |
664 | |
924 | |
665 | /* update fd-related kernel structures */ |
925 | /* update fd-related kernel structures */ |
666 | fd_reify (); |
926 | fd_reify (EV_A); |
667 | |
927 | |
668 | /* calculate blocking time */ |
928 | /* calculate blocking time */ |
669 | |
929 | |
670 | /* we only need this for !monotonic clockor timers, but as we basically |
930 | /* we only need this for !monotonic clockor timers, but as we basically |
671 | always have timers, we just calculate it always */ |
931 | always have timers, we just calculate it always */ |
|
|
932 | #if EV_USE_MONOTONIC |
|
|
933 | if (expect_true (have_monotonic)) |
|
|
934 | time_update_monotonic (EV_A); |
|
|
935 | else |
|
|
936 | #endif |
|
|
937 | { |
672 | ev_now = ev_time (); |
938 | rt_now = ev_time (); |
|
|
939 | mn_now = rt_now; |
|
|
940 | } |
673 | |
941 | |
674 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
942 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
675 | block = 0.; |
943 | block = 0.; |
676 | else |
944 | else |
677 | { |
945 | { |
678 | block = MAX_BLOCKTIME; |
946 | block = MAX_BLOCKTIME; |
679 | |
947 | |
680 | if (timercnt) |
948 | if (timercnt) |
681 | { |
949 | { |
682 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
950 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
683 | if (block > to) block = to; |
951 | if (block > to) block = to; |
684 | } |
952 | } |
685 | |
953 | |
686 | if (periodiccnt) |
954 | if (periodiccnt) |
687 | { |
955 | { |
688 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
956 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
689 | if (block > to) block = to; |
957 | if (block > to) block = to; |
690 | } |
958 | } |
691 | |
959 | |
692 | if (block < 0.) block = 0.; |
960 | if (block < 0.) block = 0.; |
693 | } |
961 | } |
694 | |
962 | |
695 | method_poll (block); |
963 | method_poll (EV_A_ block); |
696 | |
964 | |
697 | /* update ev_now, do magic */ |
965 | /* update rt_now, do magic */ |
698 | time_update (); |
966 | time_update (EV_A); |
699 | |
967 | |
700 | /* queue pending timers and reschedule them */ |
968 | /* queue pending timers and reschedule them */ |
701 | timers_reify (); /* relative timers called last */ |
969 | timers_reify (EV_A); /* relative timers called last */ |
702 | periodics_reify (); /* absolute timers called first */ |
970 | periodics_reify (EV_A); /* absolute timers called first */ |
703 | |
971 | |
704 | /* queue idle watchers unless io or timers are pending */ |
972 | /* queue idle watchers unless io or timers are pending */ |
705 | if (!pendingcnt) |
973 | if (!pendingcnt) |
706 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
974 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
707 | |
975 | |
708 | /* queue check watchers, to be executed first */ |
976 | /* queue check watchers, to be executed first */ |
709 | if (checkcnt) |
977 | if (checkcnt) |
710 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
978 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
711 | |
979 | |
712 | call_pending (); |
980 | call_pending (EV_A); |
713 | } |
981 | } |
714 | while (!ev_loop_done); |
982 | while (activecnt && !loop_done); |
715 | |
983 | |
716 | if (ev_loop_done != 2) |
984 | if (loop_done != 2) |
717 | ev_loop_done = 0; |
985 | loop_done = 0; |
|
|
986 | } |
|
|
987 | |
|
|
988 | void |
|
|
989 | ev_unloop (EV_P_ int how) |
|
|
990 | { |
|
|
991 | loop_done = how; |
718 | } |
992 | } |
719 | |
993 | |
720 | /*****************************************************************************/ |
994 | /*****************************************************************************/ |
721 | |
995 | |
722 | static void |
996 | inline void |
723 | wlist_add (WL *head, WL elem) |
997 | wlist_add (WL *head, WL elem) |
724 | { |
998 | { |
725 | elem->next = *head; |
999 | elem->next = *head; |
726 | *head = elem; |
1000 | *head = elem; |
727 | } |
1001 | } |
728 | |
1002 | |
729 | static void |
1003 | inline void |
730 | wlist_del (WL *head, WL elem) |
1004 | wlist_del (WL *head, WL elem) |
731 | { |
1005 | { |
732 | while (*head) |
1006 | while (*head) |
733 | { |
1007 | { |
734 | if (*head == elem) |
1008 | if (*head == elem) |
… | |
… | |
739 | |
1013 | |
740 | head = &(*head)->next; |
1014 | head = &(*head)->next; |
741 | } |
1015 | } |
742 | } |
1016 | } |
743 | |
1017 | |
744 | static void |
1018 | inline void |
745 | ev_clear_pending (W w) |
1019 | ev_clear_pending (EV_P_ W w) |
746 | { |
1020 | { |
747 | if (w->pending) |
1021 | if (w->pending) |
748 | { |
1022 | { |
749 | pendings [w->pending - 1].w = 0; |
1023 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
750 | w->pending = 0; |
1024 | w->pending = 0; |
751 | } |
1025 | } |
752 | } |
1026 | } |
753 | |
1027 | |
754 | static void |
1028 | inline void |
755 | ev_start (W w, int active) |
1029 | ev_start (EV_P_ W w, int active) |
756 | { |
1030 | { |
|
|
1031 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
1032 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1033 | |
757 | w->active = active; |
1034 | w->active = active; |
|
|
1035 | ev_ref (EV_A); |
758 | } |
1036 | } |
759 | |
1037 | |
760 | static void |
1038 | inline void |
761 | ev_stop (W w) |
1039 | ev_stop (EV_P_ W w) |
762 | { |
1040 | { |
|
|
1041 | ev_unref (EV_A); |
763 | w->active = 0; |
1042 | w->active = 0; |
764 | } |
1043 | } |
765 | |
1044 | |
766 | /*****************************************************************************/ |
1045 | /*****************************************************************************/ |
767 | |
1046 | |
768 | void |
1047 | void |
769 | ev_io_start (struct ev_io *w) |
1048 | ev_io_start (EV_P_ struct ev_io *w) |
770 | { |
1049 | { |
771 | int fd = w->fd; |
1050 | int fd = w->fd; |
772 | |
1051 | |
773 | if (ev_is_active (w)) |
1052 | if (ev_is_active (w)) |
774 | return; |
1053 | return; |
775 | |
1054 | |
776 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1055 | assert (("ev_io_start called with negative fd", fd >= 0)); |
777 | |
1056 | |
778 | ev_start ((W)w, 1); |
1057 | ev_start (EV_A_ (W)w, 1); |
779 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1058 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
780 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1059 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
781 | |
1060 | |
782 | fd_change (fd); |
1061 | fd_change (EV_A_ fd); |
783 | } |
1062 | } |
784 | |
1063 | |
785 | void |
1064 | void |
786 | ev_io_stop (struct ev_io *w) |
1065 | ev_io_stop (EV_P_ struct ev_io *w) |
787 | { |
1066 | { |
788 | ev_clear_pending ((W)w); |
1067 | ev_clear_pending (EV_A_ (W)w); |
789 | if (!ev_is_active (w)) |
1068 | if (!ev_is_active (w)) |
790 | return; |
1069 | return; |
791 | |
1070 | |
792 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1071 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
793 | ev_stop ((W)w); |
1072 | ev_stop (EV_A_ (W)w); |
794 | |
1073 | |
795 | fd_change (w->fd); |
1074 | fd_change (EV_A_ w->fd); |
796 | } |
1075 | } |
797 | |
1076 | |
798 | void |
1077 | void |
799 | ev_timer_start (struct ev_timer *w) |
1078 | ev_timer_start (EV_P_ struct ev_timer *w) |
800 | { |
1079 | { |
801 | if (ev_is_active (w)) |
1080 | if (ev_is_active (w)) |
802 | return; |
1081 | return; |
803 | |
1082 | |
804 | w->at += now; |
1083 | w->at += mn_now; |
805 | |
1084 | |
806 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1085 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
807 | |
1086 | |
808 | ev_start ((W)w, ++timercnt); |
1087 | ev_start (EV_A_ (W)w, ++timercnt); |
809 | array_needsize (timers, timermax, timercnt, ); |
1088 | array_needsize (timers, timermax, timercnt, ); |
810 | timers [timercnt - 1] = w; |
1089 | timers [timercnt - 1] = w; |
811 | upheap ((WT *)timers, timercnt - 1); |
1090 | upheap ((WT *)timers, timercnt - 1); |
812 | } |
1091 | } |
813 | |
1092 | |
814 | void |
1093 | void |
815 | ev_timer_stop (struct ev_timer *w) |
1094 | ev_timer_stop (EV_P_ struct ev_timer *w) |
816 | { |
1095 | { |
817 | ev_clear_pending ((W)w); |
1096 | ev_clear_pending (EV_A_ (W)w); |
818 | if (!ev_is_active (w)) |
1097 | if (!ev_is_active (w)) |
819 | return; |
1098 | return; |
820 | |
1099 | |
821 | if (w->active < timercnt--) |
1100 | if (w->active < timercnt--) |
822 | { |
1101 | { |
… | |
… | |
824 | downheap ((WT *)timers, timercnt, w->active - 1); |
1103 | downheap ((WT *)timers, timercnt, w->active - 1); |
825 | } |
1104 | } |
826 | |
1105 | |
827 | w->at = w->repeat; |
1106 | w->at = w->repeat; |
828 | |
1107 | |
829 | ev_stop ((W)w); |
1108 | ev_stop (EV_A_ (W)w); |
830 | } |
1109 | } |
831 | |
1110 | |
832 | void |
1111 | void |
833 | ev_timer_again (struct ev_timer *w) |
1112 | ev_timer_again (EV_P_ struct ev_timer *w) |
834 | { |
1113 | { |
835 | if (ev_is_active (w)) |
1114 | if (ev_is_active (w)) |
836 | { |
1115 | { |
837 | if (w->repeat) |
1116 | if (w->repeat) |
838 | { |
1117 | { |
839 | w->at = now + w->repeat; |
1118 | w->at = mn_now + w->repeat; |
840 | downheap ((WT *)timers, timercnt, w->active - 1); |
1119 | downheap ((WT *)timers, timercnt, w->active - 1); |
841 | } |
1120 | } |
842 | else |
1121 | else |
843 | ev_timer_stop (w); |
1122 | ev_timer_stop (EV_A_ w); |
844 | } |
1123 | } |
845 | else if (w->repeat) |
1124 | else if (w->repeat) |
846 | ev_timer_start (w); |
1125 | ev_timer_start (EV_A_ w); |
847 | } |
1126 | } |
848 | |
1127 | |
849 | void |
1128 | void |
850 | ev_periodic_start (struct ev_periodic *w) |
1129 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
851 | { |
1130 | { |
852 | if (ev_is_active (w)) |
1131 | if (ev_is_active (w)) |
853 | return; |
1132 | return; |
854 | |
1133 | |
855 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1134 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
856 | |
1135 | |
857 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1136 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
858 | if (w->interval) |
1137 | if (w->interval) |
859 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1138 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
860 | |
1139 | |
861 | ev_start ((W)w, ++periodiccnt); |
1140 | ev_start (EV_A_ (W)w, ++periodiccnt); |
862 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1141 | array_needsize (periodics, periodicmax, periodiccnt, ); |
863 | periodics [periodiccnt - 1] = w; |
1142 | periodics [periodiccnt - 1] = w; |
864 | upheap ((WT *)periodics, periodiccnt - 1); |
1143 | upheap ((WT *)periodics, periodiccnt - 1); |
865 | } |
1144 | } |
866 | |
1145 | |
867 | void |
1146 | void |
868 | ev_periodic_stop (struct ev_periodic *w) |
1147 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
869 | { |
1148 | { |
870 | ev_clear_pending ((W)w); |
1149 | ev_clear_pending (EV_A_ (W)w); |
871 | if (!ev_is_active (w)) |
1150 | if (!ev_is_active (w)) |
872 | return; |
1151 | return; |
873 | |
1152 | |
874 | if (w->active < periodiccnt--) |
1153 | if (w->active < periodiccnt--) |
875 | { |
1154 | { |
876 | periodics [w->active - 1] = periodics [periodiccnt]; |
1155 | periodics [w->active - 1] = periodics [periodiccnt]; |
877 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1156 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
878 | } |
1157 | } |
879 | |
1158 | |
880 | ev_stop ((W)w); |
1159 | ev_stop (EV_A_ (W)w); |
881 | } |
1160 | } |
882 | |
1161 | |
883 | void |
1162 | void |
884 | ev_signal_start (struct ev_signal *w) |
1163 | ev_idle_start (EV_P_ struct ev_idle *w) |
885 | { |
1164 | { |
886 | if (ev_is_active (w)) |
1165 | if (ev_is_active (w)) |
887 | return; |
1166 | return; |
888 | |
1167 | |
|
|
1168 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1169 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1170 | idles [idlecnt - 1] = w; |
|
|
1171 | } |
|
|
1172 | |
|
|
1173 | void |
|
|
1174 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1175 | { |
|
|
1176 | ev_clear_pending (EV_A_ (W)w); |
|
|
1177 | if (ev_is_active (w)) |
|
|
1178 | return; |
|
|
1179 | |
|
|
1180 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1181 | ev_stop (EV_A_ (W)w); |
|
|
1182 | } |
|
|
1183 | |
|
|
1184 | void |
|
|
1185 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1186 | { |
|
|
1187 | if (ev_is_active (w)) |
|
|
1188 | return; |
|
|
1189 | |
|
|
1190 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1191 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1192 | prepares [preparecnt - 1] = w; |
|
|
1193 | } |
|
|
1194 | |
|
|
1195 | void |
|
|
1196 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1197 | { |
|
|
1198 | ev_clear_pending (EV_A_ (W)w); |
|
|
1199 | if (ev_is_active (w)) |
|
|
1200 | return; |
|
|
1201 | |
|
|
1202 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1203 | ev_stop (EV_A_ (W)w); |
|
|
1204 | } |
|
|
1205 | |
|
|
1206 | void |
|
|
1207 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1208 | { |
|
|
1209 | if (ev_is_active (w)) |
|
|
1210 | return; |
|
|
1211 | |
|
|
1212 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1213 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1214 | checks [checkcnt - 1] = w; |
|
|
1215 | } |
|
|
1216 | |
|
|
1217 | void |
|
|
1218 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1219 | { |
|
|
1220 | ev_clear_pending (EV_A_ (W)w); |
|
|
1221 | if (ev_is_active (w)) |
|
|
1222 | return; |
|
|
1223 | |
|
|
1224 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1225 | ev_stop (EV_A_ (W)w); |
|
|
1226 | } |
|
|
1227 | |
|
|
1228 | #ifndef SA_RESTART |
|
|
1229 | # define SA_RESTART 0 |
|
|
1230 | #endif |
|
|
1231 | |
|
|
1232 | void |
|
|
1233 | ev_signal_start (EV_P_ struct ev_signal *w) |
|
|
1234 | { |
|
|
1235 | #if EV_MULTIPLICITY |
|
|
1236 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1237 | #endif |
|
|
1238 | if (ev_is_active (w)) |
|
|
1239 | return; |
|
|
1240 | |
889 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1241 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
890 | |
1242 | |
891 | ev_start ((W)w, 1); |
1243 | ev_start (EV_A_ (W)w, 1); |
892 | array_needsize (signals, signalmax, w->signum, signals_init); |
1244 | array_needsize (signals, signalmax, w->signum, signals_init); |
893 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1245 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
894 | |
1246 | |
895 | if (!w->next) |
1247 | if (!w->next) |
896 | { |
1248 | { |
897 | struct sigaction sa; |
1249 | struct sigaction sa; |
898 | sa.sa_handler = sighandler; |
1250 | sa.sa_handler = sighandler; |
899 | sigfillset (&sa.sa_mask); |
1251 | sigfillset (&sa.sa_mask); |
900 | sa.sa_flags = 0; |
1252 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
901 | sigaction (w->signum, &sa, 0); |
1253 | sigaction (w->signum, &sa, 0); |
902 | } |
1254 | } |
903 | } |
1255 | } |
904 | |
1256 | |
905 | void |
1257 | void |
906 | ev_signal_stop (struct ev_signal *w) |
1258 | ev_signal_stop (EV_P_ struct ev_signal *w) |
907 | { |
1259 | { |
908 | ev_clear_pending ((W)w); |
1260 | ev_clear_pending (EV_A_ (W)w); |
909 | if (!ev_is_active (w)) |
1261 | if (!ev_is_active (w)) |
910 | return; |
1262 | return; |
911 | |
1263 | |
912 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1264 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
913 | ev_stop ((W)w); |
1265 | ev_stop (EV_A_ (W)w); |
914 | |
1266 | |
915 | if (!signals [w->signum - 1].head) |
1267 | if (!signals [w->signum - 1].head) |
916 | signal (w->signum, SIG_DFL); |
1268 | signal (w->signum, SIG_DFL); |
917 | } |
1269 | } |
918 | |
1270 | |
919 | void |
1271 | void |
920 | ev_idle_start (struct ev_idle *w) |
1272 | ev_child_start (EV_P_ struct ev_child *w) |
921 | { |
1273 | { |
|
|
1274 | #if EV_MULTIPLICITY |
|
|
1275 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1276 | #endif |
922 | if (ev_is_active (w)) |
1277 | if (ev_is_active (w)) |
923 | return; |
1278 | return; |
924 | |
1279 | |
925 | ev_start ((W)w, ++idlecnt); |
1280 | ev_start (EV_A_ (W)w, 1); |
926 | array_needsize (idles, idlemax, idlecnt, ); |
1281 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
927 | idles [idlecnt - 1] = w; |
|
|
928 | } |
1282 | } |
929 | |
1283 | |
930 | void |
1284 | void |
931 | ev_idle_stop (struct ev_idle *w) |
1285 | ev_child_stop (EV_P_ struct ev_child *w) |
932 | { |
1286 | { |
933 | ev_clear_pending ((W)w); |
1287 | ev_clear_pending (EV_A_ (W)w); |
934 | if (ev_is_active (w)) |
1288 | if (ev_is_active (w)) |
935 | return; |
1289 | return; |
936 | |
1290 | |
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) |
|
|
987 | { |
|
|
988 | if (ev_is_active (w)) |
|
|
989 | return; |
|
|
990 | |
|
|
991 | ev_start ((W)w, 1); |
|
|
992 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
993 | } |
|
|
994 | |
|
|
995 | void |
|
|
996 | ev_child_stop (struct ev_child *w) |
|
|
997 | { |
|
|
998 | ev_clear_pending ((W)w); |
|
|
999 | if (ev_is_active (w)) |
|
|
1000 | return; |
|
|
1001 | |
|
|
1002 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1291 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1003 | ev_stop ((W)w); |
1292 | ev_stop (EV_A_ (W)w); |
1004 | } |
1293 | } |
1005 | |
1294 | |
1006 | /*****************************************************************************/ |
1295 | /*****************************************************************************/ |
1007 | |
1296 | |
1008 | struct ev_once |
1297 | struct ev_once |
… | |
… | |
1012 | void (*cb)(int revents, void *arg); |
1301 | void (*cb)(int revents, void *arg); |
1013 | void *arg; |
1302 | void *arg; |
1014 | }; |
1303 | }; |
1015 | |
1304 | |
1016 | static void |
1305 | static void |
1017 | once_cb (struct ev_once *once, int revents) |
1306 | once_cb (EV_P_ struct ev_once *once, int revents) |
1018 | { |
1307 | { |
1019 | void (*cb)(int revents, void *arg) = once->cb; |
1308 | void (*cb)(int revents, void *arg) = once->cb; |
1020 | void *arg = once->arg; |
1309 | void *arg = once->arg; |
1021 | |
1310 | |
1022 | ev_io_stop (&once->io); |
1311 | ev_io_stop (EV_A_ &once->io); |
1023 | ev_timer_stop (&once->to); |
1312 | ev_timer_stop (EV_A_ &once->to); |
1024 | free (once); |
1313 | free (once); |
1025 | |
1314 | |
1026 | cb (revents, arg); |
1315 | cb (revents, arg); |
1027 | } |
1316 | } |
1028 | |
1317 | |
1029 | static void |
1318 | static void |
1030 | once_cb_io (struct ev_io *w, int revents) |
1319 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1031 | { |
1320 | { |
1032 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1321 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1033 | } |
1322 | } |
1034 | |
1323 | |
1035 | static void |
1324 | static void |
1036 | once_cb_to (struct ev_timer *w, int revents) |
1325 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1037 | { |
1326 | { |
1038 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1327 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1039 | } |
1328 | } |
1040 | |
1329 | |
1041 | void |
1330 | void |
1042 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1331 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1043 | { |
1332 | { |
1044 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1333 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1045 | |
1334 | |
1046 | if (!once) |
1335 | if (!once) |
1047 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1336 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
… | |
… | |
1052 | |
1341 | |
1053 | ev_watcher_init (&once->io, once_cb_io); |
1342 | ev_watcher_init (&once->io, once_cb_io); |
1054 | if (fd >= 0) |
1343 | if (fd >= 0) |
1055 | { |
1344 | { |
1056 | ev_io_set (&once->io, fd, events); |
1345 | ev_io_set (&once->io, fd, events); |
1057 | ev_io_start (&once->io); |
1346 | ev_io_start (EV_A_ &once->io); |
1058 | } |
1347 | } |
1059 | |
1348 | |
1060 | ev_watcher_init (&once->to, once_cb_to); |
1349 | ev_watcher_init (&once->to, once_cb_to); |
1061 | if (timeout >= 0.) |
1350 | if (timeout >= 0.) |
1062 | { |
1351 | { |
1063 | ev_timer_set (&once->to, timeout, 0.); |
1352 | ev_timer_set (&once->to, timeout, 0.); |
1064 | ev_timer_start (&once->to); |
1353 | ev_timer_start (EV_A_ &once->to); |
1065 | } |
1354 | } |
1066 | } |
1355 | } |
1067 | } |
1356 | } |
1068 | |
1357 | |
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 | { |
|
|
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 | } |
|
|
1146 | |
|
|
1147 | #endif |
|
|
1148 | |
|
|
1149 | |
|
|
1150 | |
|
|
1151 | |
|
|