… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
|
|
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
31 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
37 | # include "config.h" |
|
|
38 | |
|
|
39 | # if HAVE_CLOCK_GETTIME |
|
|
40 | # ifndef EV_USE_MONOTONIC |
|
|
41 | # define EV_USE_MONOTONIC 1 |
|
|
42 | # endif |
|
|
43 | # ifndef EV_USE_REALTIME |
|
|
44 | # define EV_USE_REALTIME 1 |
|
|
45 | # endif |
|
|
46 | # endif |
|
|
47 | |
|
|
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
|
|
49 | # define EV_USE_SELECT 1 |
|
|
50 | # endif |
|
|
51 | |
|
|
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
|
|
53 | # define EV_USE_POLL 1 |
|
|
54 | # endif |
|
|
55 | |
|
|
56 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
|
|
57 | # define EV_USE_EPOLL 1 |
|
|
58 | # endif |
|
|
59 | |
|
|
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
|
|
61 | # define EV_USE_KQUEUE 1 |
|
|
62 | # endif |
|
|
63 | |
33 | #endif |
64 | #endif |
34 | |
65 | |
35 | #include <math.h> |
66 | #include <math.h> |
36 | #include <stdlib.h> |
67 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
68 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
69 | #include <stddef.h> |
41 | |
70 | |
42 | #include <stdio.h> |
71 | #include <stdio.h> |
43 | |
72 | |
44 | #include <assert.h> |
73 | #include <assert.h> |
45 | #include <errno.h> |
74 | #include <errno.h> |
46 | #include <sys/types.h> |
75 | #include <sys/types.h> |
|
|
76 | #include <time.h> |
|
|
77 | |
|
|
78 | #include <signal.h> |
|
|
79 | |
47 | #ifndef WIN32 |
80 | #ifndef _WIN32 |
|
|
81 | # include <unistd.h> |
|
|
82 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
83 | # include <sys/wait.h> |
|
|
84 | #else |
|
|
85 | # define WIN32_LEAN_AND_MEAN |
|
|
86 | # include <windows.h> |
|
|
87 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
88 | # define EV_SELECT_IS_WINSOCKET 1 |
49 | #endif |
89 | # endif |
50 | #include <sys/time.h> |
90 | #endif |
51 | #include <time.h> |
|
|
52 | |
91 | |
53 | /**/ |
92 | /**/ |
54 | |
93 | |
55 | #ifndef EV_USE_MONOTONIC |
94 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
95 | # define EV_USE_MONOTONIC 1 |
57 | #endif |
96 | #endif |
58 | |
97 | |
59 | #ifndef EV_USE_SELECT |
98 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
99 | # define EV_USE_SELECT 1 |
|
|
100 | # define EV_SELECT_USE_FD_SET 1 |
61 | #endif |
101 | #endif |
62 | |
102 | |
63 | #ifndef EV_USEV_POLL |
103 | #ifndef EV_USE_POLL |
64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
104 | # ifdef _WIN32 |
|
|
105 | # define EV_USE_POLL 0 |
|
|
106 | # else |
|
|
107 | # define EV_USE_POLL 1 |
|
|
108 | # endif |
65 | #endif |
109 | #endif |
66 | |
110 | |
67 | #ifndef EV_USE_EPOLL |
111 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
112 | # define EV_USE_EPOLL 0 |
69 | #endif |
113 | #endif |
… | |
… | |
75 | #ifndef EV_USE_REALTIME |
119 | #ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 1 |
120 | # define EV_USE_REALTIME 1 |
77 | #endif |
121 | #endif |
78 | |
122 | |
79 | /**/ |
123 | /**/ |
|
|
124 | |
|
|
125 | /* darwin simply cnanot be helped */ |
|
|
126 | #ifdef __APPLE__ |
|
|
127 | # undef EV_USE_POLL |
|
|
128 | # undef EV_USE_KQUEUE |
|
|
129 | #endif |
80 | |
130 | |
81 | #ifndef CLOCK_MONOTONIC |
131 | #ifndef CLOCK_MONOTONIC |
82 | # undef EV_USE_MONOTONIC |
132 | # undef EV_USE_MONOTONIC |
83 | # define EV_USE_MONOTONIC 0 |
133 | # define EV_USE_MONOTONIC 0 |
84 | #endif |
134 | #endif |
85 | |
135 | |
86 | #ifndef CLOCK_REALTIME |
136 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
137 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
138 | # define EV_USE_REALTIME 0 |
|
|
139 | #endif |
|
|
140 | |
|
|
141 | #if EV_SELECT_IS_WINSOCKET |
|
|
142 | # include <winsock.h> |
89 | #endif |
143 | #endif |
90 | |
144 | |
91 | /**/ |
145 | /**/ |
92 | |
146 | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
147 | #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) */ |
148 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
149 | #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 */ |
150 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
97 | |
151 | |
|
|
152 | #ifdef EV_H |
|
|
153 | # include EV_H |
|
|
154 | #else |
98 | #include "ev.h" |
155 | # include "ev.h" |
|
|
156 | #endif |
99 | |
157 | |
100 | #if __GNUC__ >= 3 |
158 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
159 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
102 | # define inline inline |
160 | # define inline inline |
103 | #else |
161 | #else |
… | |
… | |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
167 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
168 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
169 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
170 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
113 | |
171 | |
|
|
172 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
173 | |
114 | typedef struct ev_watcher *W; |
174 | typedef struct ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
175 | typedef struct ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
176 | typedef struct ev_watcher_time *WT; |
117 | |
177 | |
118 | static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */ |
178 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
119 | static ev_tstamp rt_now; |
|
|
120 | static int method; |
|
|
121 | |
179 | |
122 | static int have_monotonic; /* runtime */ |
180 | #ifdef _WIN32 |
123 | |
181 | # include "ev_win32.c" |
124 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
|
|
125 | static void (*method_modify)(EV_P_ int fd, int oev, int nev); |
|
|
126 | static void (*method_poll)(EV_P_ ev_tstamp timeout); |
|
|
127 | |
|
|
128 | static int activecnt; /* number of active events */ |
|
|
129 | |
|
|
130 | #if EV_USE_SELECT |
|
|
131 | static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo; |
|
|
132 | static int vec_max; |
|
|
133 | #endif |
|
|
134 | |
|
|
135 | #if EV_USEV_POLL |
|
|
136 | static struct pollfd *polls; |
|
|
137 | static int pollmax, pollcnt; |
|
|
138 | static int *pollidxs; /* maps fds into structure indices */ |
|
|
139 | static int pollidxmax; |
|
|
140 | #endif |
|
|
141 | |
|
|
142 | #if EV_USE_EPOLL |
|
|
143 | static int epoll_fd = -1; |
|
|
144 | |
|
|
145 | static struct epoll_event *events; |
|
|
146 | static int eventmax; |
|
|
147 | #endif |
|
|
148 | |
|
|
149 | #if EV_USE_KQUEUE |
|
|
150 | static int kqueue_fd; |
|
|
151 | static struct kevent *kqueue_changes; |
|
|
152 | static int kqueue_changemax, kqueue_changecnt; |
|
|
153 | static struct kevent *kqueue_events; |
|
|
154 | static int kqueue_eventmax; |
|
|
155 | #endif |
182 | #endif |
156 | |
183 | |
157 | /*****************************************************************************/ |
184 | /*****************************************************************************/ |
158 | |
185 | |
159 | inline ev_tstamp |
186 | static void (*syserr_cb)(const char *msg); |
|
|
187 | |
|
|
188 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
189 | { |
|
|
190 | syserr_cb = cb; |
|
|
191 | } |
|
|
192 | |
|
|
193 | static void |
|
|
194 | syserr (const char *msg) |
|
|
195 | { |
|
|
196 | if (!msg) |
|
|
197 | msg = "(libev) system error"; |
|
|
198 | |
|
|
199 | if (syserr_cb) |
|
|
200 | syserr_cb (msg); |
|
|
201 | else |
|
|
202 | { |
|
|
203 | perror (msg); |
|
|
204 | abort (); |
|
|
205 | } |
|
|
206 | } |
|
|
207 | |
|
|
208 | static void *(*alloc)(void *ptr, long size); |
|
|
209 | |
|
|
210 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
211 | { |
|
|
212 | alloc = cb; |
|
|
213 | } |
|
|
214 | |
|
|
215 | static void * |
|
|
216 | ev_realloc (void *ptr, long size) |
|
|
217 | { |
|
|
218 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
219 | |
|
|
220 | if (!ptr && size) |
|
|
221 | { |
|
|
222 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
223 | abort (); |
|
|
224 | } |
|
|
225 | |
|
|
226 | return ptr; |
|
|
227 | } |
|
|
228 | |
|
|
229 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
230 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
231 | |
|
|
232 | /*****************************************************************************/ |
|
|
233 | |
|
|
234 | typedef struct |
|
|
235 | { |
|
|
236 | WL head; |
|
|
237 | unsigned char events; |
|
|
238 | unsigned char reify; |
|
|
239 | #if EV_SELECT_IS_WINSOCKET |
|
|
240 | SOCKET handle; |
|
|
241 | #endif |
|
|
242 | } ANFD; |
|
|
243 | |
|
|
244 | typedef struct |
|
|
245 | { |
|
|
246 | W w; |
|
|
247 | int events; |
|
|
248 | } ANPENDING; |
|
|
249 | |
|
|
250 | #if EV_MULTIPLICITY |
|
|
251 | |
|
|
252 | struct ev_loop |
|
|
253 | { |
|
|
254 | ev_tstamp ev_rt_now; |
|
|
255 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
256 | #define VAR(name,decl) decl; |
|
|
257 | #include "ev_vars.h" |
|
|
258 | #undef VAR |
|
|
259 | }; |
|
|
260 | #include "ev_wrap.h" |
|
|
261 | |
|
|
262 | struct ev_loop default_loop_struct; |
|
|
263 | static struct ev_loop *default_loop; |
|
|
264 | |
|
|
265 | #else |
|
|
266 | |
|
|
267 | ev_tstamp ev_rt_now; |
|
|
268 | #define VAR(name,decl) static decl; |
|
|
269 | #include "ev_vars.h" |
|
|
270 | #undef VAR |
|
|
271 | |
|
|
272 | static int default_loop; |
|
|
273 | |
|
|
274 | #endif |
|
|
275 | |
|
|
276 | /*****************************************************************************/ |
|
|
277 | |
|
|
278 | ev_tstamp |
160 | ev_time (void) |
279 | ev_time (void) |
161 | { |
280 | { |
162 | #if EV_USE_REALTIME |
281 | #if EV_USE_REALTIME |
163 | struct timespec ts; |
282 | struct timespec ts; |
164 | clock_gettime (CLOCK_REALTIME, &ts); |
283 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
183 | #endif |
302 | #endif |
184 | |
303 | |
185 | return ev_time (); |
304 | return ev_time (); |
186 | } |
305 | } |
187 | |
306 | |
|
|
307 | #if EV_MULTIPLICITY |
188 | ev_tstamp |
308 | ev_tstamp |
189 | ev_now (EV_P) |
309 | ev_now (EV_P) |
190 | { |
310 | { |
191 | return rt_now; |
311 | return ev_rt_now; |
192 | } |
312 | } |
|
|
313 | #endif |
193 | |
314 | |
194 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
315 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
195 | |
316 | |
196 | #define array_needsize(base,cur,cnt,init) \ |
317 | #define array_needsize(type,base,cur,cnt,init) \ |
197 | if (expect_false ((cnt) > cur)) \ |
318 | if (expect_false ((cnt) > cur)) \ |
198 | { \ |
319 | { \ |
199 | int newcnt = cur; \ |
320 | int newcnt = cur; \ |
200 | do \ |
321 | do \ |
201 | { \ |
322 | { \ |
202 | newcnt = array_roundsize (base, newcnt << 1); \ |
323 | newcnt = array_roundsize (type, newcnt << 1); \ |
203 | } \ |
324 | } \ |
204 | while ((cnt) > newcnt); \ |
325 | while ((cnt) > newcnt); \ |
205 | \ |
326 | \ |
206 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
327 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
207 | init (base + cur, newcnt - cur); \ |
328 | init (base + cur, newcnt - cur); \ |
208 | cur = newcnt; \ |
329 | cur = newcnt; \ |
209 | } |
330 | } |
|
|
331 | |
|
|
332 | #define array_slim(type,stem) \ |
|
|
333 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
334 | { \ |
|
|
335 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
336 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
337 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
338 | } |
|
|
339 | |
|
|
340 | #define array_free(stem, idx) \ |
|
|
341 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
210 | |
342 | |
211 | /*****************************************************************************/ |
343 | /*****************************************************************************/ |
212 | |
|
|
213 | typedef struct |
|
|
214 | { |
|
|
215 | struct ev_watcher_list *head; |
|
|
216 | unsigned char events; |
|
|
217 | unsigned char reify; |
|
|
218 | } ANFD; |
|
|
219 | |
|
|
220 | static ANFD *anfds; |
|
|
221 | static int anfdmax; |
|
|
222 | |
344 | |
223 | static void |
345 | static void |
224 | anfds_init (ANFD *base, int count) |
346 | anfds_init (ANFD *base, int count) |
225 | { |
347 | { |
226 | while (count--) |
348 | while (count--) |
… | |
… | |
231 | |
353 | |
232 | ++base; |
354 | ++base; |
233 | } |
355 | } |
234 | } |
356 | } |
235 | |
357 | |
236 | typedef struct |
358 | void |
237 | { |
|
|
238 | W w; |
|
|
239 | int events; |
|
|
240 | } ANPENDING; |
|
|
241 | |
|
|
242 | static ANPENDING *pendings [NUMPRI]; |
|
|
243 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
244 | |
|
|
245 | static void |
|
|
246 | event (EV_P_ W w, int events) |
359 | ev_feed_event (EV_P_ void *w, int revents) |
247 | { |
360 | { |
|
|
361 | W w_ = (W)w; |
|
|
362 | |
248 | if (w->pending) |
363 | if (w_->pending) |
249 | { |
364 | { |
250 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
365 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
251 | return; |
366 | return; |
252 | } |
367 | } |
253 | |
368 | |
254 | w->pending = ++pendingcnt [ABSPRI (w)]; |
369 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
255 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
370 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
256 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
371 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
257 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
372 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
258 | } |
373 | } |
259 | |
374 | |
260 | static void |
375 | static void |
261 | queue_events (EV_P_ W *events, int eventcnt, int type) |
376 | queue_events (EV_P_ W *events, int eventcnt, int type) |
262 | { |
377 | { |
263 | int i; |
378 | int i; |
264 | |
379 | |
265 | for (i = 0; i < eventcnt; ++i) |
380 | for (i = 0; i < eventcnt; ++i) |
266 | event (EV_A_ events [i], type); |
381 | ev_feed_event (EV_A_ events [i], type); |
267 | } |
382 | } |
268 | |
383 | |
269 | static void |
384 | inline void |
270 | fd_event (EV_P_ int fd, int events) |
385 | fd_event (EV_P_ int fd, int revents) |
271 | { |
386 | { |
272 | ANFD *anfd = anfds + fd; |
387 | ANFD *anfd = anfds + fd; |
273 | struct ev_io *w; |
388 | struct ev_io *w; |
274 | |
389 | |
275 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
390 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
276 | { |
391 | { |
277 | int ev = w->events & events; |
392 | int ev = w->events & revents; |
278 | |
393 | |
279 | if (ev) |
394 | if (ev) |
280 | event (EV_A_ (W)w, ev); |
395 | ev_feed_event (EV_A_ (W)w, ev); |
281 | } |
396 | } |
|
|
397 | } |
|
|
398 | |
|
|
399 | void |
|
|
400 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
401 | { |
|
|
402 | fd_event (EV_A_ fd, revents); |
282 | } |
403 | } |
283 | |
404 | |
284 | /*****************************************************************************/ |
405 | /*****************************************************************************/ |
285 | |
|
|
286 | static int *fdchanges; |
|
|
287 | static int fdchangemax, fdchangecnt; |
|
|
288 | |
406 | |
289 | static void |
407 | static void |
290 | fd_reify (EV_P) |
408 | fd_reify (EV_P) |
291 | { |
409 | { |
292 | int i; |
410 | int i; |
… | |
… | |
300 | int events = 0; |
418 | int events = 0; |
301 | |
419 | |
302 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
420 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
303 | events |= w->events; |
421 | events |= w->events; |
304 | |
422 | |
|
|
423 | #if EV_SELECT_IS_WINSOCKET |
|
|
424 | if (events) |
|
|
425 | { |
|
|
426 | unsigned long argp; |
|
|
427 | anfd->handle = _get_osfhandle (fd); |
|
|
428 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
429 | } |
|
|
430 | #endif |
|
|
431 | |
305 | anfd->reify = 0; |
432 | anfd->reify = 0; |
306 | |
433 | |
307 | if (anfd->events != events) |
|
|
308 | { |
|
|
309 | method_modify (EV_A_ fd, anfd->events, events); |
434 | method_modify (EV_A_ fd, anfd->events, events); |
310 | anfd->events = events; |
435 | anfd->events = events; |
311 | } |
|
|
312 | } |
436 | } |
313 | |
437 | |
314 | fdchangecnt = 0; |
438 | fdchangecnt = 0; |
315 | } |
439 | } |
316 | |
440 | |
317 | static void |
441 | static void |
318 | fd_change (EV_P_ int fd) |
442 | fd_change (EV_P_ int fd) |
319 | { |
443 | { |
320 | if (anfds [fd].reify || fdchangecnt < 0) |
444 | if (anfds [fd].reify) |
321 | return; |
445 | return; |
322 | |
446 | |
323 | anfds [fd].reify = 1; |
447 | anfds [fd].reify = 1; |
324 | |
448 | |
325 | ++fdchangecnt; |
449 | ++fdchangecnt; |
326 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
450 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
327 | fdchanges [fdchangecnt - 1] = fd; |
451 | fdchanges [fdchangecnt - 1] = fd; |
328 | } |
452 | } |
329 | |
453 | |
330 | static void |
454 | static void |
331 | fd_kill (EV_P_ int fd) |
455 | fd_kill (EV_P_ int fd) |
… | |
… | |
333 | struct ev_io *w; |
457 | struct ev_io *w; |
334 | |
458 | |
335 | while ((w = (struct ev_io *)anfds [fd].head)) |
459 | while ((w = (struct ev_io *)anfds [fd].head)) |
336 | { |
460 | { |
337 | ev_io_stop (EV_A_ w); |
461 | ev_io_stop (EV_A_ w); |
338 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
462 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
339 | } |
463 | } |
|
|
464 | } |
|
|
465 | |
|
|
466 | static int |
|
|
467 | fd_valid (int fd) |
|
|
468 | { |
|
|
469 | #ifdef _WIN32 |
|
|
470 | return _get_osfhandle (fd) != -1; |
|
|
471 | #else |
|
|
472 | return fcntl (fd, F_GETFD) != -1; |
|
|
473 | #endif |
340 | } |
474 | } |
341 | |
475 | |
342 | /* called on EBADF to verify fds */ |
476 | /* called on EBADF to verify fds */ |
343 | static void |
477 | static void |
344 | fd_ebadf (EV_P) |
478 | fd_ebadf (EV_P) |
345 | { |
479 | { |
346 | int fd; |
480 | int fd; |
347 | |
481 | |
348 | for (fd = 0; fd < anfdmax; ++fd) |
482 | for (fd = 0; fd < anfdmax; ++fd) |
349 | if (anfds [fd].events) |
483 | if (anfds [fd].events) |
350 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
484 | if (!fd_valid (fd) == -1 && errno == EBADF) |
351 | fd_kill (EV_A_ fd); |
485 | fd_kill (EV_A_ fd); |
352 | } |
486 | } |
353 | |
487 | |
354 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
488 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
355 | static void |
489 | static void |
356 | fd_enomem (EV_P) |
490 | fd_enomem (EV_P) |
357 | { |
491 | { |
358 | int fd = anfdmax; |
492 | int fd; |
359 | |
493 | |
360 | while (fd--) |
494 | for (fd = anfdmax; fd--; ) |
361 | if (anfds [fd].events) |
495 | if (anfds [fd].events) |
362 | { |
496 | { |
363 | close (fd); |
|
|
364 | fd_kill (EV_A_ fd); |
497 | fd_kill (EV_A_ fd); |
365 | return; |
498 | return; |
366 | } |
499 | } |
367 | } |
500 | } |
368 | |
501 | |
|
|
502 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
503 | static void |
|
|
504 | fd_rearm_all (EV_P) |
|
|
505 | { |
|
|
506 | int fd; |
|
|
507 | |
|
|
508 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
509 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
510 | if (anfds [fd].events) |
|
|
511 | { |
|
|
512 | anfds [fd].events = 0; |
|
|
513 | fd_change (EV_A_ fd); |
|
|
514 | } |
|
|
515 | } |
|
|
516 | |
369 | /*****************************************************************************/ |
517 | /*****************************************************************************/ |
370 | |
518 | |
371 | static struct ev_timer **timers; |
|
|
372 | static int timermax, timercnt; |
|
|
373 | |
|
|
374 | static struct ev_periodic **periodics; |
|
|
375 | static int periodicmax, periodiccnt; |
|
|
376 | |
|
|
377 | static void |
519 | static void |
378 | upheap (WT *timers, int k) |
520 | upheap (WT *heap, int k) |
379 | { |
521 | { |
380 | WT w = timers [k]; |
522 | WT w = heap [k]; |
381 | |
523 | |
382 | while (k && timers [k >> 1]->at > w->at) |
524 | while (k && heap [k >> 1]->at > w->at) |
383 | { |
525 | { |
384 | timers [k] = timers [k >> 1]; |
526 | heap [k] = heap [k >> 1]; |
385 | timers [k]->active = k + 1; |
527 | ((W)heap [k])->active = k + 1; |
386 | k >>= 1; |
528 | k >>= 1; |
387 | } |
529 | } |
388 | |
530 | |
389 | timers [k] = w; |
531 | heap [k] = w; |
390 | timers [k]->active = k + 1; |
532 | ((W)heap [k])->active = k + 1; |
391 | |
533 | |
392 | } |
534 | } |
393 | |
535 | |
394 | static void |
536 | static void |
395 | downheap (WT *timers, int N, int k) |
537 | downheap (WT *heap, int N, int k) |
396 | { |
538 | { |
397 | WT w = timers [k]; |
539 | WT w = heap [k]; |
398 | |
540 | |
399 | while (k < (N >> 1)) |
541 | while (k < (N >> 1)) |
400 | { |
542 | { |
401 | int j = k << 1; |
543 | int j = k << 1; |
402 | |
544 | |
403 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
545 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
404 | ++j; |
546 | ++j; |
405 | |
547 | |
406 | if (w->at <= timers [j]->at) |
548 | if (w->at <= heap [j]->at) |
407 | break; |
549 | break; |
408 | |
550 | |
409 | timers [k] = timers [j]; |
551 | heap [k] = heap [j]; |
410 | timers [k]->active = k + 1; |
552 | ((W)heap [k])->active = k + 1; |
411 | k = j; |
553 | k = j; |
412 | } |
554 | } |
413 | |
555 | |
414 | timers [k] = w; |
556 | heap [k] = w; |
415 | timers [k]->active = k + 1; |
557 | ((W)heap [k])->active = k + 1; |
|
|
558 | } |
|
|
559 | |
|
|
560 | inline void |
|
|
561 | adjustheap (WT *heap, int N, int k) |
|
|
562 | { |
|
|
563 | upheap (heap, k); |
|
|
564 | downheap (heap, N, k); |
416 | } |
565 | } |
417 | |
566 | |
418 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
419 | |
568 | |
420 | typedef struct |
569 | typedef struct |
421 | { |
570 | { |
422 | struct ev_watcher_list *head; |
571 | WL head; |
423 | sig_atomic_t volatile gotsig; |
572 | sig_atomic_t volatile gotsig; |
424 | } ANSIG; |
573 | } ANSIG; |
425 | |
574 | |
426 | static ANSIG *signals; |
575 | static ANSIG *signals; |
427 | static int signalmax; |
576 | static int signalmax; |
… | |
… | |
443 | } |
592 | } |
444 | |
593 | |
445 | static void |
594 | static void |
446 | sighandler (int signum) |
595 | sighandler (int signum) |
447 | { |
596 | { |
|
|
597 | #if _WIN32 |
|
|
598 | signal (signum, sighandler); |
|
|
599 | #endif |
|
|
600 | |
448 | signals [signum - 1].gotsig = 1; |
601 | signals [signum - 1].gotsig = 1; |
449 | |
602 | |
450 | if (!gotsig) |
603 | if (!gotsig) |
451 | { |
604 | { |
452 | int old_errno = errno; |
605 | int old_errno = errno; |
… | |
… | |
454 | write (sigpipe [1], &signum, 1); |
607 | write (sigpipe [1], &signum, 1); |
455 | errno = old_errno; |
608 | errno = old_errno; |
456 | } |
609 | } |
457 | } |
610 | } |
458 | |
611 | |
|
|
612 | void |
|
|
613 | ev_feed_signal_event (EV_P_ int signum) |
|
|
614 | { |
|
|
615 | WL w; |
|
|
616 | |
|
|
617 | #if EV_MULTIPLICITY |
|
|
618 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | --signum; |
|
|
622 | |
|
|
623 | if (signum < 0 || signum >= signalmax) |
|
|
624 | return; |
|
|
625 | |
|
|
626 | signals [signum].gotsig = 0; |
|
|
627 | |
|
|
628 | for (w = signals [signum].head; w; w = w->next) |
|
|
629 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
630 | } |
|
|
631 | |
459 | static void |
632 | static void |
460 | sigcb (EV_P_ struct ev_io *iow, int revents) |
633 | sigcb (EV_P_ struct ev_io *iow, int revents) |
461 | { |
634 | { |
462 | struct ev_watcher_list *w; |
|
|
463 | int signum; |
635 | int signum; |
464 | |
636 | |
465 | read (sigpipe [0], &revents, 1); |
637 | read (sigpipe [0], &revents, 1); |
466 | gotsig = 0; |
638 | gotsig = 0; |
467 | |
639 | |
468 | for (signum = signalmax; signum--; ) |
640 | for (signum = signalmax; signum--; ) |
469 | if (signals [signum].gotsig) |
641 | if (signals [signum].gotsig) |
470 | { |
642 | ev_feed_signal_event (EV_A_ signum + 1); |
471 | signals [signum].gotsig = 0; |
643 | } |
472 | |
644 | |
473 | for (w = signals [signum].head; w; w = w->next) |
645 | inline void |
474 | event (EV_A_ (W)w, EV_SIGNAL); |
646 | fd_intern (int fd) |
475 | } |
647 | { |
|
|
648 | #ifdef _WIN32 |
|
|
649 | int arg = 1; |
|
|
650 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
651 | #else |
|
|
652 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
653 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
654 | #endif |
476 | } |
655 | } |
477 | |
656 | |
478 | static void |
657 | static void |
479 | siginit (EV_P) |
658 | siginit (EV_P) |
480 | { |
659 | { |
481 | #ifndef WIN32 |
660 | fd_intern (sigpipe [0]); |
482 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
661 | fd_intern (sigpipe [1]); |
483 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
484 | |
|
|
485 | /* rather than sort out wether we really need nb, set it */ |
|
|
486 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
487 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
488 | #endif |
|
|
489 | |
662 | |
490 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
663 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
491 | ev_io_start (&sigev); |
664 | ev_io_start (EV_A_ &sigev); |
492 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
665 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
493 | } |
666 | } |
494 | |
667 | |
495 | /*****************************************************************************/ |
668 | /*****************************************************************************/ |
496 | |
669 | |
497 | static struct ev_idle **idles; |
|
|
498 | static int idlemax, idlecnt; |
|
|
499 | |
|
|
500 | static struct ev_prepare **prepares; |
|
|
501 | static int preparemax, preparecnt; |
|
|
502 | |
|
|
503 | static struct ev_check **checks; |
|
|
504 | static int checkmax, checkcnt; |
|
|
505 | |
|
|
506 | /*****************************************************************************/ |
|
|
507 | |
|
|
508 | static struct ev_child *childs [PID_HASHSIZE]; |
670 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
671 | |
|
|
672 | #ifndef _WIN32 |
|
|
673 | |
509 | static struct ev_signal childev; |
674 | static struct ev_signal childev; |
510 | |
|
|
511 | #ifndef WIN32 |
|
|
512 | |
675 | |
513 | #ifndef WCONTINUED |
676 | #ifndef WCONTINUED |
514 | # define WCONTINUED 0 |
677 | # define WCONTINUED 0 |
515 | #endif |
678 | #endif |
516 | |
679 | |
… | |
… | |
520 | struct ev_child *w; |
683 | struct ev_child *w; |
521 | |
684 | |
522 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
685 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
523 | if (w->pid == pid || !w->pid) |
686 | if (w->pid == pid || !w->pid) |
524 | { |
687 | { |
525 | w->priority = sw->priority; /* need to do it *now* */ |
688 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
526 | w->rpid = pid; |
689 | w->rpid = pid; |
527 | w->rstatus = status; |
690 | w->rstatus = status; |
528 | event (EV_A_ (W)w, EV_CHILD); |
691 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
529 | } |
692 | } |
530 | } |
693 | } |
531 | |
694 | |
532 | static void |
695 | static void |
533 | childcb (EV_P_ struct ev_signal *sw, int revents) |
696 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
535 | int pid, status; |
698 | int pid, status; |
536 | |
699 | |
537 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
700 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
538 | { |
701 | { |
539 | /* make sure we are called again until all childs have been reaped */ |
702 | /* make sure we are called again until all childs have been reaped */ |
540 | event (EV_A_ (W)sw, EV_SIGNAL); |
703 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
541 | |
704 | |
542 | child_reap (EV_A_ sw, pid, pid, status); |
705 | child_reap (EV_A_ sw, pid, pid, status); |
543 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
706 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
544 | } |
707 | } |
545 | } |
708 | } |
… | |
… | |
552 | # include "ev_kqueue.c" |
715 | # include "ev_kqueue.c" |
553 | #endif |
716 | #endif |
554 | #if EV_USE_EPOLL |
717 | #if EV_USE_EPOLL |
555 | # include "ev_epoll.c" |
718 | # include "ev_epoll.c" |
556 | #endif |
719 | #endif |
557 | #if EV_USEV_POLL |
720 | #if EV_USE_POLL |
558 | # include "ev_poll.c" |
721 | # include "ev_poll.c" |
559 | #endif |
722 | #endif |
560 | #if EV_USE_SELECT |
723 | #if EV_USE_SELECT |
561 | # include "ev_select.c" |
724 | # include "ev_select.c" |
562 | #endif |
725 | #endif |
… | |
… | |
575 | |
738 | |
576 | /* return true if we are running with elevated privileges and should ignore env variables */ |
739 | /* return true if we are running with elevated privileges and should ignore env variables */ |
577 | static int |
740 | static int |
578 | enable_secure (void) |
741 | enable_secure (void) |
579 | { |
742 | { |
580 | #ifdef WIN32 |
743 | #ifdef _WIN32 |
581 | return 0; |
744 | return 0; |
582 | #else |
745 | #else |
583 | return getuid () != geteuid () |
746 | return getuid () != geteuid () |
584 | || getgid () != getegid (); |
747 | || getgid () != getegid (); |
585 | #endif |
748 | #endif |
… | |
… | |
589 | ev_method (EV_P) |
752 | ev_method (EV_P) |
590 | { |
753 | { |
591 | return method; |
754 | return method; |
592 | } |
755 | } |
593 | |
756 | |
594 | int |
757 | static void |
595 | ev_init (EV_P_ int methods) |
758 | loop_init (EV_P_ int methods) |
596 | { |
759 | { |
597 | if (!method) |
760 | if (!method) |
598 | { |
761 | { |
599 | #if EV_USE_MONOTONIC |
762 | #if EV_USE_MONOTONIC |
600 | { |
763 | { |
… | |
… | |
602 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
765 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
603 | have_monotonic = 1; |
766 | have_monotonic = 1; |
604 | } |
767 | } |
605 | #endif |
768 | #endif |
606 | |
769 | |
607 | rt_now = ev_time (); |
770 | ev_rt_now = ev_time (); |
608 | mn_now = get_clock (); |
771 | mn_now = get_clock (); |
609 | now_floor = mn_now; |
772 | now_floor = mn_now; |
610 | diff = rt_now - mn_now; |
773 | rtmn_diff = ev_rt_now - mn_now; |
611 | |
|
|
612 | if (pipe (sigpipe)) |
|
|
613 | return 0; |
|
|
614 | |
774 | |
615 | if (methods == EVMETHOD_AUTO) |
775 | if (methods == EVMETHOD_AUTO) |
616 | if (!enable_secure () && getenv ("LIBmethodS")) |
776 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
617 | methods = atoi (getenv ("LIBmethodS")); |
777 | methods = atoi (getenv ("LIBEV_METHODS")); |
618 | else |
778 | else |
619 | methods = EVMETHOD_ANY; |
779 | methods = EVMETHOD_ANY; |
620 | |
780 | |
621 | method = 0; |
781 | method = 0; |
622 | #if EV_USE_KQUEUE |
782 | #if EV_USE_KQUEUE |
623 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
783 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
624 | #endif |
784 | #endif |
625 | #if EV_USE_EPOLL |
785 | #if EV_USE_EPOLL |
626 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
786 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
627 | #endif |
787 | #endif |
628 | #if EV_USEV_POLL |
788 | #if EV_USE_POLL |
629 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
789 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
630 | #endif |
790 | #endif |
631 | #if EV_USE_SELECT |
791 | #if EV_USE_SELECT |
632 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
792 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
633 | #endif |
793 | #endif |
634 | |
794 | |
|
|
795 | ev_init (&sigev, sigcb); |
|
|
796 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
797 | } |
|
|
798 | } |
|
|
799 | |
|
|
800 | void |
|
|
801 | loop_destroy (EV_P) |
|
|
802 | { |
|
|
803 | int i; |
|
|
804 | |
|
|
805 | #if EV_USE_KQUEUE |
|
|
806 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
807 | #endif |
|
|
808 | #if EV_USE_EPOLL |
|
|
809 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
810 | #endif |
|
|
811 | #if EV_USE_POLL |
|
|
812 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
813 | #endif |
|
|
814 | #if EV_USE_SELECT |
|
|
815 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
816 | #endif |
|
|
817 | |
|
|
818 | for (i = NUMPRI; i--; ) |
|
|
819 | array_free (pending, [i]); |
|
|
820 | |
|
|
821 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
822 | array_free (fdchange, EMPTY); |
|
|
823 | array_free (timer, EMPTY); |
|
|
824 | #if EV_PERIODICS |
|
|
825 | array_free (periodic, EMPTY); |
|
|
826 | #endif |
|
|
827 | array_free (idle, EMPTY); |
|
|
828 | array_free (prepare, EMPTY); |
|
|
829 | array_free (check, EMPTY); |
|
|
830 | |
|
|
831 | method = 0; |
|
|
832 | } |
|
|
833 | |
|
|
834 | static void |
|
|
835 | loop_fork (EV_P) |
|
|
836 | { |
|
|
837 | #if EV_USE_EPOLL |
|
|
838 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
839 | #endif |
|
|
840 | #if EV_USE_KQUEUE |
|
|
841 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
842 | #endif |
|
|
843 | |
|
|
844 | if (ev_is_active (&sigev)) |
|
|
845 | { |
|
|
846 | /* default loop */ |
|
|
847 | |
|
|
848 | ev_ref (EV_A); |
|
|
849 | ev_io_stop (EV_A_ &sigev); |
|
|
850 | close (sigpipe [0]); |
|
|
851 | close (sigpipe [1]); |
|
|
852 | |
|
|
853 | while (pipe (sigpipe)) |
|
|
854 | syserr ("(libev) error creating pipe"); |
|
|
855 | |
|
|
856 | siginit (EV_A); |
|
|
857 | } |
|
|
858 | |
|
|
859 | postfork = 0; |
|
|
860 | } |
|
|
861 | |
|
|
862 | #if EV_MULTIPLICITY |
|
|
863 | struct ev_loop * |
|
|
864 | ev_loop_new (int methods) |
|
|
865 | { |
|
|
866 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
867 | |
|
|
868 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
869 | |
|
|
870 | loop_init (EV_A_ methods); |
|
|
871 | |
|
|
872 | if (ev_method (EV_A)) |
|
|
873 | return loop; |
|
|
874 | |
|
|
875 | return 0; |
|
|
876 | } |
|
|
877 | |
|
|
878 | void |
|
|
879 | ev_loop_destroy (EV_P) |
|
|
880 | { |
|
|
881 | loop_destroy (EV_A); |
|
|
882 | ev_free (loop); |
|
|
883 | } |
|
|
884 | |
|
|
885 | void |
|
|
886 | ev_loop_fork (EV_P) |
|
|
887 | { |
|
|
888 | postfork = 1; |
|
|
889 | } |
|
|
890 | |
|
|
891 | #endif |
|
|
892 | |
|
|
893 | #if EV_MULTIPLICITY |
|
|
894 | struct ev_loop * |
|
|
895 | #else |
|
|
896 | int |
|
|
897 | #endif |
|
|
898 | ev_default_loop (int methods) |
|
|
899 | { |
|
|
900 | if (sigpipe [0] == sigpipe [1]) |
|
|
901 | if (pipe (sigpipe)) |
|
|
902 | return 0; |
|
|
903 | |
|
|
904 | if (!default_loop) |
|
|
905 | { |
|
|
906 | #if EV_MULTIPLICITY |
|
|
907 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
908 | #else |
|
|
909 | default_loop = 1; |
|
|
910 | #endif |
|
|
911 | |
|
|
912 | loop_init (EV_A_ methods); |
|
|
913 | |
635 | if (method) |
914 | if (ev_method (EV_A)) |
636 | { |
915 | { |
637 | ev_watcher_init (&sigev, sigcb); |
|
|
638 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
639 | siginit (EV_A); |
916 | siginit (EV_A); |
640 | |
917 | |
641 | #ifndef WIN32 |
918 | #ifndef _WIN32 |
642 | ev_signal_init (&childev, childcb, SIGCHLD); |
919 | ev_signal_init (&childev, childcb, SIGCHLD); |
643 | ev_set_priority (&childev, EV_MAXPRI); |
920 | ev_set_priority (&childev, EV_MAXPRI); |
644 | ev_signal_start (EV_A_ &childev); |
921 | ev_signal_start (EV_A_ &childev); |
645 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
922 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
646 | #endif |
923 | #endif |
647 | } |
924 | } |
|
|
925 | else |
|
|
926 | default_loop = 0; |
648 | } |
927 | } |
649 | |
928 | |
650 | return method; |
929 | return default_loop; |
|
|
930 | } |
|
|
931 | |
|
|
932 | void |
|
|
933 | ev_default_destroy (void) |
|
|
934 | { |
|
|
935 | #if EV_MULTIPLICITY |
|
|
936 | struct ev_loop *loop = default_loop; |
|
|
937 | #endif |
|
|
938 | |
|
|
939 | #ifndef _WIN32 |
|
|
940 | ev_ref (EV_A); /* child watcher */ |
|
|
941 | ev_signal_stop (EV_A_ &childev); |
|
|
942 | #endif |
|
|
943 | |
|
|
944 | ev_ref (EV_A); /* signal watcher */ |
|
|
945 | ev_io_stop (EV_A_ &sigev); |
|
|
946 | |
|
|
947 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
948 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
949 | |
|
|
950 | loop_destroy (EV_A); |
|
|
951 | } |
|
|
952 | |
|
|
953 | void |
|
|
954 | ev_default_fork (void) |
|
|
955 | { |
|
|
956 | #if EV_MULTIPLICITY |
|
|
957 | struct ev_loop *loop = default_loop; |
|
|
958 | #endif |
|
|
959 | |
|
|
960 | if (method) |
|
|
961 | postfork = 1; |
651 | } |
962 | } |
652 | |
963 | |
653 | /*****************************************************************************/ |
964 | /*****************************************************************************/ |
654 | |
965 | |
655 | void |
966 | static int |
656 | ev_fork_prepare (void) |
967 | any_pending (EV_P) |
657 | { |
968 | { |
658 | /* nop */ |
969 | int pri; |
659 | } |
|
|
660 | |
970 | |
661 | void |
971 | for (pri = NUMPRI; pri--; ) |
662 | ev_fork_parent (void) |
972 | if (pendingcnt [pri]) |
663 | { |
973 | return 1; |
664 | /* nop */ |
|
|
665 | } |
|
|
666 | |
974 | |
667 | void |
975 | return 0; |
668 | ev_fork_child (void) |
|
|
669 | { |
|
|
670 | #if EV_USE_EPOLL |
|
|
671 | if (method == EVMETHOD_EPOLL) |
|
|
672 | epoll_postfork_child (); |
|
|
673 | #endif |
|
|
674 | |
|
|
675 | ev_io_stop (&sigev); |
|
|
676 | close (sigpipe [0]); |
|
|
677 | close (sigpipe [1]); |
|
|
678 | pipe (sigpipe); |
|
|
679 | siginit (); |
|
|
680 | } |
976 | } |
681 | |
|
|
682 | /*****************************************************************************/ |
|
|
683 | |
977 | |
684 | static void |
978 | static void |
685 | call_pending (EV_P) |
979 | call_pending (EV_P) |
686 | { |
980 | { |
687 | int pri; |
981 | int pri; |
… | |
… | |
692 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
986 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
693 | |
987 | |
694 | if (p->w) |
988 | if (p->w) |
695 | { |
989 | { |
696 | p->w->pending = 0; |
990 | p->w->pending = 0; |
697 | p->w->cb (EV_A_ p->w, p->events); |
991 | EV_CB_INVOKE (p->w, p->events); |
698 | } |
992 | } |
699 | } |
993 | } |
700 | } |
994 | } |
701 | |
995 | |
702 | static void |
996 | static void |
703 | timers_reify (EV_P) |
997 | timers_reify (EV_P) |
704 | { |
998 | { |
705 | while (timercnt && timers [0]->at <= mn_now) |
999 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
706 | { |
1000 | { |
707 | struct ev_timer *w = timers [0]; |
1001 | struct ev_timer *w = timers [0]; |
|
|
1002 | |
|
|
1003 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
708 | |
1004 | |
709 | /* first reschedule or stop timer */ |
1005 | /* first reschedule or stop timer */ |
710 | if (w->repeat) |
1006 | if (w->repeat) |
711 | { |
1007 | { |
712 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1008 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1009 | |
713 | w->at = mn_now + w->repeat; |
1010 | ((WT)w)->at += w->repeat; |
|
|
1011 | if (((WT)w)->at < mn_now) |
|
|
1012 | ((WT)w)->at = mn_now; |
|
|
1013 | |
714 | downheap ((WT *)timers, timercnt, 0); |
1014 | downheap ((WT *)timers, timercnt, 0); |
715 | } |
1015 | } |
716 | else |
1016 | else |
717 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1017 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
718 | |
1018 | |
719 | event ((W)w, EV_TIMEOUT); |
1019 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
720 | } |
1020 | } |
721 | } |
1021 | } |
722 | |
1022 | |
|
|
1023 | #if EV_PERIODICS |
723 | static void |
1024 | static void |
724 | periodics_reify (EV_P) |
1025 | periodics_reify (EV_P) |
725 | { |
1026 | { |
726 | while (periodiccnt && periodics [0]->at <= rt_now) |
1027 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
727 | { |
1028 | { |
728 | struct ev_periodic *w = periodics [0]; |
1029 | struct ev_periodic *w = periodics [0]; |
729 | |
1030 | |
|
|
1031 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1032 | |
730 | /* first reschedule or stop timer */ |
1033 | /* first reschedule or stop timer */ |
731 | if (w->interval) |
1034 | if (w->reschedule_cb) |
732 | { |
1035 | { |
|
|
1036 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1037 | |
|
|
1038 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1039 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1040 | } |
|
|
1041 | else if (w->interval) |
|
|
1042 | { |
733 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1043 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
734 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1044 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
735 | downheap ((WT *)periodics, periodiccnt, 0); |
1045 | downheap ((WT *)periodics, periodiccnt, 0); |
736 | } |
1046 | } |
737 | else |
1047 | else |
738 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1048 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
739 | |
1049 | |
740 | event (EV_A_ (W)w, EV_PERIODIC); |
1050 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
741 | } |
1051 | } |
742 | } |
1052 | } |
743 | |
1053 | |
744 | static void |
1054 | static void |
745 | periodics_reschedule (EV_P_ ev_tstamp diff) |
1055 | periodics_reschedule (EV_P) |
746 | { |
1056 | { |
747 | int i; |
1057 | int i; |
748 | |
1058 | |
749 | /* adjust periodics after time jump */ |
1059 | /* adjust periodics after time jump */ |
750 | for (i = 0; i < periodiccnt; ++i) |
1060 | for (i = 0; i < periodiccnt; ++i) |
751 | { |
1061 | { |
752 | struct ev_periodic *w = periodics [i]; |
1062 | struct ev_periodic *w = periodics [i]; |
753 | |
1063 | |
|
|
1064 | if (w->reschedule_cb) |
|
|
1065 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
754 | if (w->interval) |
1066 | else if (w->interval) |
755 | { |
|
|
756 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1067 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
757 | |
|
|
758 | if (fabs (diff) >= 1e-4) |
|
|
759 | { |
|
|
760 | ev_periodic_stop (EV_A_ w); |
|
|
761 | ev_periodic_start (EV_A_ w); |
|
|
762 | |
|
|
763 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
764 | } |
|
|
765 | } |
|
|
766 | } |
1068 | } |
|
|
1069 | |
|
|
1070 | /* now rebuild the heap */ |
|
|
1071 | for (i = periodiccnt >> 1; i--; ) |
|
|
1072 | downheap ((WT *)periodics, periodiccnt, i); |
767 | } |
1073 | } |
|
|
1074 | #endif |
768 | |
1075 | |
769 | inline int |
1076 | inline int |
770 | time_update_monotonic (EV_P) |
1077 | time_update_monotonic (EV_P) |
771 | { |
1078 | { |
772 | mn_now = get_clock (); |
1079 | mn_now = get_clock (); |
773 | |
1080 | |
774 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1081 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
775 | { |
1082 | { |
776 | rt_now = mn_now + diff; |
1083 | ev_rt_now = rtmn_diff + mn_now; |
777 | return 0; |
1084 | return 0; |
778 | } |
1085 | } |
779 | else |
1086 | else |
780 | { |
1087 | { |
781 | now_floor = mn_now; |
1088 | now_floor = mn_now; |
782 | rt_now = ev_time (); |
1089 | ev_rt_now = ev_time (); |
783 | return 1; |
1090 | return 1; |
784 | } |
1091 | } |
785 | } |
1092 | } |
786 | |
1093 | |
787 | static void |
1094 | static void |
… | |
… | |
792 | #if EV_USE_MONOTONIC |
1099 | #if EV_USE_MONOTONIC |
793 | if (expect_true (have_monotonic)) |
1100 | if (expect_true (have_monotonic)) |
794 | { |
1101 | { |
795 | if (time_update_monotonic (EV_A)) |
1102 | if (time_update_monotonic (EV_A)) |
796 | { |
1103 | { |
797 | ev_tstamp odiff = diff; |
1104 | ev_tstamp odiff = rtmn_diff; |
798 | |
1105 | |
799 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1106 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
800 | { |
1107 | { |
801 | diff = rt_now - mn_now; |
1108 | rtmn_diff = ev_rt_now - mn_now; |
802 | |
1109 | |
803 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1110 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
804 | return; /* all is well */ |
1111 | return; /* all is well */ |
805 | |
1112 | |
806 | rt_now = ev_time (); |
1113 | ev_rt_now = ev_time (); |
807 | mn_now = get_clock (); |
1114 | mn_now = get_clock (); |
808 | now_floor = mn_now; |
1115 | now_floor = mn_now; |
809 | } |
1116 | } |
810 | |
1117 | |
|
|
1118 | # if EV_PERIODICS |
811 | periodics_reschedule (EV_A_ diff - odiff); |
1119 | periodics_reschedule (EV_A); |
|
|
1120 | # endif |
812 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1121 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1122 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
813 | } |
1123 | } |
814 | } |
1124 | } |
815 | else |
1125 | else |
816 | #endif |
1126 | #endif |
817 | { |
1127 | { |
818 | rt_now = ev_time (); |
1128 | ev_rt_now = ev_time (); |
819 | |
1129 | |
820 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1130 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
821 | { |
1131 | { |
|
|
1132 | #if EV_PERIODICS |
822 | periodics_reschedule (EV_A_ rt_now - mn_now); |
1133 | periodics_reschedule (EV_A); |
|
|
1134 | #endif |
823 | |
1135 | |
824 | /* adjust timers. this is easy, as the offset is the same for all */ |
1136 | /* adjust timers. this is easy, as the offset is the same for all */ |
825 | for (i = 0; i < timercnt; ++i) |
1137 | for (i = 0; i < timercnt; ++i) |
826 | timers [i]->at += diff; |
1138 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
827 | } |
1139 | } |
828 | |
1140 | |
829 | mn_now = rt_now; |
1141 | mn_now = ev_rt_now; |
830 | } |
1142 | } |
831 | } |
1143 | } |
832 | |
1144 | |
833 | void |
1145 | void |
834 | ev_ref (EV_P) |
1146 | ev_ref (EV_P) |
… | |
… | |
857 | { |
1169 | { |
858 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1170 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
859 | call_pending (EV_A); |
1171 | call_pending (EV_A); |
860 | } |
1172 | } |
861 | |
1173 | |
|
|
1174 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1175 | if (expect_false (postfork)) |
|
|
1176 | loop_fork (EV_A); |
|
|
1177 | |
862 | /* update fd-related kernel structures */ |
1178 | /* update fd-related kernel structures */ |
863 | fd_reify (EV_A); |
1179 | fd_reify (EV_A); |
864 | |
1180 | |
865 | /* calculate blocking time */ |
1181 | /* calculate blocking time */ |
866 | |
1182 | |
867 | /* we only need this for !monotonic clockor timers, but as we basically |
1183 | /* we only need this for !monotonic clock or timers, but as we basically |
868 | always have timers, we just calculate it always */ |
1184 | always have timers, we just calculate it always */ |
869 | #if EV_USE_MONOTONIC |
1185 | #if EV_USE_MONOTONIC |
870 | if (expect_true (have_monotonic)) |
1186 | if (expect_true (have_monotonic)) |
871 | time_update_monotonic (EV_A); |
1187 | time_update_monotonic (EV_A); |
872 | else |
1188 | else |
873 | #endif |
1189 | #endif |
874 | { |
1190 | { |
875 | rt_now = ev_time (); |
1191 | ev_rt_now = ev_time (); |
876 | mn_now = rt_now; |
1192 | mn_now = ev_rt_now; |
877 | } |
1193 | } |
878 | |
1194 | |
879 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1195 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
880 | block = 0.; |
1196 | block = 0.; |
881 | else |
1197 | else |
882 | { |
1198 | { |
883 | block = MAX_BLOCKTIME; |
1199 | block = MAX_BLOCKTIME; |
884 | |
1200 | |
885 | if (timercnt) |
1201 | if (timercnt) |
886 | { |
1202 | { |
887 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1203 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
888 | if (block > to) block = to; |
1204 | if (block > to) block = to; |
889 | } |
1205 | } |
890 | |
1206 | |
|
|
1207 | #if EV_PERIODICS |
891 | if (periodiccnt) |
1208 | if (periodiccnt) |
892 | { |
1209 | { |
893 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1210 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
894 | if (block > to) block = to; |
1211 | if (block > to) block = to; |
895 | } |
1212 | } |
|
|
1213 | #endif |
896 | |
1214 | |
897 | if (block < 0.) block = 0.; |
1215 | if (block < 0.) block = 0.; |
898 | } |
1216 | } |
899 | |
1217 | |
900 | method_poll (EV_A_ block); |
1218 | method_poll (EV_A_ block); |
901 | |
1219 | |
902 | /* update rt_now, do magic */ |
1220 | /* update ev_rt_now, do magic */ |
903 | time_update (EV_A); |
1221 | time_update (EV_A); |
904 | |
1222 | |
905 | /* queue pending timers and reschedule them */ |
1223 | /* queue pending timers and reschedule them */ |
906 | timers_reify (EV_A); /* relative timers called last */ |
1224 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1225 | #if EV_PERIODICS |
907 | periodics_reify (EV_A); /* absolute timers called first */ |
1226 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1227 | #endif |
908 | |
1228 | |
909 | /* queue idle watchers unless io or timers are pending */ |
1229 | /* queue idle watchers unless io or timers are pending */ |
910 | if (!pendingcnt) |
1230 | if (idlecnt && !any_pending (EV_A)) |
911 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1231 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
912 | |
1232 | |
913 | /* queue check watchers, to be executed first */ |
1233 | /* queue check watchers, to be executed first */ |
914 | if (checkcnt) |
1234 | if (checkcnt) |
915 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1235 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
… | |
… | |
990 | return; |
1310 | return; |
991 | |
1311 | |
992 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1312 | assert (("ev_io_start called with negative fd", fd >= 0)); |
993 | |
1313 | |
994 | ev_start (EV_A_ (W)w, 1); |
1314 | ev_start (EV_A_ (W)w, 1); |
995 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1315 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
996 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1316 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
997 | |
1317 | |
998 | fd_change (EV_A_ fd); |
1318 | fd_change (EV_A_ fd); |
999 | } |
1319 | } |
1000 | |
1320 | |
… | |
… | |
1003 | { |
1323 | { |
1004 | ev_clear_pending (EV_A_ (W)w); |
1324 | ev_clear_pending (EV_A_ (W)w); |
1005 | if (!ev_is_active (w)) |
1325 | if (!ev_is_active (w)) |
1006 | return; |
1326 | return; |
1007 | |
1327 | |
|
|
1328 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1329 | |
1008 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1330 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1009 | ev_stop (EV_A_ (W)w); |
1331 | ev_stop (EV_A_ (W)w); |
1010 | |
1332 | |
1011 | fd_change (EV_A_ w->fd); |
1333 | fd_change (EV_A_ w->fd); |
1012 | } |
1334 | } |
… | |
… | |
1015 | ev_timer_start (EV_P_ struct ev_timer *w) |
1337 | ev_timer_start (EV_P_ struct ev_timer *w) |
1016 | { |
1338 | { |
1017 | if (ev_is_active (w)) |
1339 | if (ev_is_active (w)) |
1018 | return; |
1340 | return; |
1019 | |
1341 | |
1020 | w->at += mn_now; |
1342 | ((WT)w)->at += mn_now; |
1021 | |
1343 | |
1022 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1344 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1023 | |
1345 | |
1024 | ev_start (EV_A_ (W)w, ++timercnt); |
1346 | ev_start (EV_A_ (W)w, ++timercnt); |
1025 | array_needsize (timers, timermax, timercnt, ); |
1347 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1026 | timers [timercnt - 1] = w; |
1348 | timers [timercnt - 1] = w; |
1027 | upheap ((WT *)timers, timercnt - 1); |
1349 | upheap ((WT *)timers, timercnt - 1); |
|
|
1350 | |
|
|
1351 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1028 | } |
1352 | } |
1029 | |
1353 | |
1030 | void |
1354 | void |
1031 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1355 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1032 | { |
1356 | { |
1033 | ev_clear_pending (EV_A_ (W)w); |
1357 | ev_clear_pending (EV_A_ (W)w); |
1034 | if (!ev_is_active (w)) |
1358 | if (!ev_is_active (w)) |
1035 | return; |
1359 | return; |
1036 | |
1360 | |
|
|
1361 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1362 | |
1037 | if (w->active < timercnt--) |
1363 | if (((W)w)->active < timercnt--) |
1038 | { |
1364 | { |
1039 | timers [w->active - 1] = timers [timercnt]; |
1365 | timers [((W)w)->active - 1] = timers [timercnt]; |
1040 | downheap ((WT *)timers, timercnt, w->active - 1); |
1366 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1041 | } |
1367 | } |
1042 | |
1368 | |
1043 | w->at = w->repeat; |
1369 | ((WT)w)->at -= mn_now; |
1044 | |
1370 | |
1045 | ev_stop (EV_A_ (W)w); |
1371 | ev_stop (EV_A_ (W)w); |
1046 | } |
1372 | } |
1047 | |
1373 | |
1048 | void |
1374 | void |
… | |
… | |
1050 | { |
1376 | { |
1051 | if (ev_is_active (w)) |
1377 | if (ev_is_active (w)) |
1052 | { |
1378 | { |
1053 | if (w->repeat) |
1379 | if (w->repeat) |
1054 | { |
1380 | { |
1055 | w->at = mn_now + w->repeat; |
1381 | ((WT)w)->at = mn_now + w->repeat; |
1056 | downheap ((WT *)timers, timercnt, w->active - 1); |
1382 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1057 | } |
1383 | } |
1058 | else |
1384 | else |
1059 | ev_timer_stop (EV_A_ w); |
1385 | ev_timer_stop (EV_A_ w); |
1060 | } |
1386 | } |
1061 | else if (w->repeat) |
1387 | else if (w->repeat) |
1062 | ev_timer_start (EV_A_ w); |
1388 | ev_timer_start (EV_A_ w); |
1063 | } |
1389 | } |
1064 | |
1390 | |
|
|
1391 | #if EV_PERIODICS |
1065 | void |
1392 | void |
1066 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1393 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1067 | { |
1394 | { |
1068 | if (ev_is_active (w)) |
1395 | if (ev_is_active (w)) |
1069 | return; |
1396 | return; |
1070 | |
1397 | |
|
|
1398 | if (w->reschedule_cb) |
|
|
1399 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1400 | else if (w->interval) |
|
|
1401 | { |
1071 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1402 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1072 | |
|
|
1073 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1403 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1074 | if (w->interval) |
|
|
1075 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1404 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1405 | } |
1076 | |
1406 | |
1077 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1407 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1078 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1408 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1079 | periodics [periodiccnt - 1] = w; |
1409 | periodics [periodiccnt - 1] = w; |
1080 | upheap ((WT *)periodics, periodiccnt - 1); |
1410 | upheap ((WT *)periodics, periodiccnt - 1); |
|
|
1411 | |
|
|
1412 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1081 | } |
1413 | } |
1082 | |
1414 | |
1083 | void |
1415 | void |
1084 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1416 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1085 | { |
1417 | { |
1086 | ev_clear_pending (EV_A_ (W)w); |
1418 | ev_clear_pending (EV_A_ (W)w); |
1087 | if (!ev_is_active (w)) |
1419 | if (!ev_is_active (w)) |
1088 | return; |
1420 | return; |
1089 | |
1421 | |
|
|
1422 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1423 | |
1090 | if (w->active < periodiccnt--) |
1424 | if (((W)w)->active < periodiccnt--) |
1091 | { |
1425 | { |
1092 | periodics [w->active - 1] = periodics [periodiccnt]; |
1426 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1093 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1427 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1094 | } |
1428 | } |
1095 | |
1429 | |
|
|
1430 | ev_stop (EV_A_ (W)w); |
|
|
1431 | } |
|
|
1432 | |
|
|
1433 | void |
|
|
1434 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1435 | { |
|
|
1436 | /* TODO: use adjustheap and recalculation */ |
|
|
1437 | ev_periodic_stop (EV_A_ w); |
|
|
1438 | ev_periodic_start (EV_A_ w); |
|
|
1439 | } |
|
|
1440 | #endif |
|
|
1441 | |
|
|
1442 | void |
|
|
1443 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1444 | { |
|
|
1445 | if (ev_is_active (w)) |
|
|
1446 | return; |
|
|
1447 | |
|
|
1448 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1449 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1450 | idles [idlecnt - 1] = w; |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | void |
|
|
1454 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1455 | { |
|
|
1456 | ev_clear_pending (EV_A_ (W)w); |
|
|
1457 | if (!ev_is_active (w)) |
|
|
1458 | return; |
|
|
1459 | |
|
|
1460 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1461 | ev_stop (EV_A_ (W)w); |
|
|
1462 | } |
|
|
1463 | |
|
|
1464 | void |
|
|
1465 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1466 | { |
|
|
1467 | if (ev_is_active (w)) |
|
|
1468 | return; |
|
|
1469 | |
|
|
1470 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1471 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1472 | prepares [preparecnt - 1] = w; |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | void |
|
|
1476 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1477 | { |
|
|
1478 | ev_clear_pending (EV_A_ (W)w); |
|
|
1479 | if (!ev_is_active (w)) |
|
|
1480 | return; |
|
|
1481 | |
|
|
1482 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1483 | ev_stop (EV_A_ (W)w); |
|
|
1484 | } |
|
|
1485 | |
|
|
1486 | void |
|
|
1487 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1488 | { |
|
|
1489 | if (ev_is_active (w)) |
|
|
1490 | return; |
|
|
1491 | |
|
|
1492 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1493 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1494 | checks [checkcnt - 1] = w; |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | void |
|
|
1498 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1499 | { |
|
|
1500 | ev_clear_pending (EV_A_ (W)w); |
|
|
1501 | if (!ev_is_active (w)) |
|
|
1502 | return; |
|
|
1503 | |
|
|
1504 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1096 | ev_stop (EV_A_ (W)w); |
1505 | ev_stop (EV_A_ (W)w); |
1097 | } |
1506 | } |
1098 | |
1507 | |
1099 | #ifndef SA_RESTART |
1508 | #ifndef SA_RESTART |
1100 | # define SA_RESTART 0 |
1509 | # define SA_RESTART 0 |
1101 | #endif |
1510 | #endif |
1102 | |
1511 | |
1103 | void |
1512 | void |
1104 | ev_signal_start (EV_P_ struct ev_signal *w) |
1513 | ev_signal_start (EV_P_ struct ev_signal *w) |
1105 | { |
1514 | { |
|
|
1515 | #if EV_MULTIPLICITY |
|
|
1516 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
|
|
1517 | #endif |
1106 | if (ev_is_active (w)) |
1518 | if (ev_is_active (w)) |
1107 | return; |
1519 | return; |
1108 | |
1520 | |
1109 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1521 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1110 | |
1522 | |
1111 | ev_start (EV_A_ (W)w, 1); |
1523 | ev_start (EV_A_ (W)w, 1); |
1112 | array_needsize (signals, signalmax, w->signum, signals_init); |
1524 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1113 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1525 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1114 | |
1526 | |
1115 | if (!w->next) |
1527 | if (!((WL)w)->next) |
1116 | { |
1528 | { |
|
|
1529 | #if _WIN32 |
|
|
1530 | signal (w->signum, sighandler); |
|
|
1531 | #else |
1117 | struct sigaction sa; |
1532 | struct sigaction sa; |
1118 | sa.sa_handler = sighandler; |
1533 | sa.sa_handler = sighandler; |
1119 | sigfillset (&sa.sa_mask); |
1534 | sigfillset (&sa.sa_mask); |
1120 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1535 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1121 | sigaction (w->signum, &sa, 0); |
1536 | sigaction (w->signum, &sa, 0); |
|
|
1537 | #endif |
1122 | } |
1538 | } |
1123 | } |
1539 | } |
1124 | |
1540 | |
1125 | void |
1541 | void |
1126 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1542 | ev_signal_stop (EV_P_ struct ev_signal *w) |
… | |
… | |
1135 | if (!signals [w->signum - 1].head) |
1551 | if (!signals [w->signum - 1].head) |
1136 | signal (w->signum, SIG_DFL); |
1552 | signal (w->signum, SIG_DFL); |
1137 | } |
1553 | } |
1138 | |
1554 | |
1139 | void |
1555 | void |
1140 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1141 | { |
|
|
1142 | if (ev_is_active (w)) |
|
|
1143 | return; |
|
|
1144 | |
|
|
1145 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1146 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1147 | idles [idlecnt - 1] = w; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | void |
|
|
1151 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1152 | { |
|
|
1153 | ev_clear_pending (EV_A_ (W)w); |
|
|
1154 | if (ev_is_active (w)) |
|
|
1155 | return; |
|
|
1156 | |
|
|
1157 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1158 | ev_stop (EV_A_ (W)w); |
|
|
1159 | } |
|
|
1160 | |
|
|
1161 | void |
|
|
1162 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1163 | { |
|
|
1164 | if (ev_is_active (w)) |
|
|
1165 | return; |
|
|
1166 | |
|
|
1167 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1168 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1169 | prepares [preparecnt - 1] = w; |
|
|
1170 | } |
|
|
1171 | |
|
|
1172 | void |
|
|
1173 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1174 | { |
|
|
1175 | ev_clear_pending (EV_A_ (W)w); |
|
|
1176 | if (ev_is_active (w)) |
|
|
1177 | return; |
|
|
1178 | |
|
|
1179 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1180 | ev_stop (EV_A_ (W)w); |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | void |
|
|
1184 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1185 | { |
|
|
1186 | if (ev_is_active (w)) |
|
|
1187 | return; |
|
|
1188 | |
|
|
1189 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1190 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1191 | checks [checkcnt - 1] = w; |
|
|
1192 | } |
|
|
1193 | |
|
|
1194 | void |
|
|
1195 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1196 | { |
|
|
1197 | ev_clear_pending (EV_A_ (W)w); |
|
|
1198 | if (ev_is_active (w)) |
|
|
1199 | return; |
|
|
1200 | |
|
|
1201 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1202 | ev_stop (EV_A_ (W)w); |
|
|
1203 | } |
|
|
1204 | |
|
|
1205 | void |
|
|
1206 | ev_child_start (EV_P_ struct ev_child *w) |
1556 | ev_child_start (EV_P_ struct ev_child *w) |
1207 | { |
1557 | { |
|
|
1558 | #if EV_MULTIPLICITY |
|
|
1559 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1560 | #endif |
1208 | if (ev_is_active (w)) |
1561 | if (ev_is_active (w)) |
1209 | return; |
1562 | return; |
1210 | |
1563 | |
1211 | ev_start (EV_A_ (W)w, 1); |
1564 | ev_start (EV_A_ (W)w, 1); |
1212 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1565 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
… | |
… | |
1214 | |
1567 | |
1215 | void |
1568 | void |
1216 | ev_child_stop (EV_P_ struct ev_child *w) |
1569 | ev_child_stop (EV_P_ struct ev_child *w) |
1217 | { |
1570 | { |
1218 | ev_clear_pending (EV_A_ (W)w); |
1571 | ev_clear_pending (EV_A_ (W)w); |
1219 | if (ev_is_active (w)) |
1572 | if (!ev_is_active (w)) |
1220 | return; |
1573 | return; |
1221 | |
1574 | |
1222 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1575 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1223 | ev_stop (EV_A_ (W)w); |
1576 | ev_stop (EV_A_ (W)w); |
1224 | } |
1577 | } |
… | |
… | |
1239 | void (*cb)(int revents, void *arg) = once->cb; |
1592 | void (*cb)(int revents, void *arg) = once->cb; |
1240 | void *arg = once->arg; |
1593 | void *arg = once->arg; |
1241 | |
1594 | |
1242 | ev_io_stop (EV_A_ &once->io); |
1595 | ev_io_stop (EV_A_ &once->io); |
1243 | ev_timer_stop (EV_A_ &once->to); |
1596 | ev_timer_stop (EV_A_ &once->to); |
1244 | free (once); |
1597 | ev_free (once); |
1245 | |
1598 | |
1246 | cb (revents, arg); |
1599 | cb (revents, arg); |
1247 | } |
1600 | } |
1248 | |
1601 | |
1249 | static void |
1602 | static void |
… | |
… | |
1259 | } |
1612 | } |
1260 | |
1613 | |
1261 | void |
1614 | void |
1262 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1615 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1263 | { |
1616 | { |
1264 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1617 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1265 | |
1618 | |
1266 | if (!once) |
1619 | if (!once) |
1267 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1620 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1268 | else |
1621 | else |
1269 | { |
1622 | { |
1270 | once->cb = cb; |
1623 | once->cb = cb; |
1271 | once->arg = arg; |
1624 | once->arg = arg; |
1272 | |
1625 | |
1273 | ev_watcher_init (&once->io, once_cb_io); |
1626 | ev_init (&once->io, once_cb_io); |
1274 | if (fd >= 0) |
1627 | if (fd >= 0) |
1275 | { |
1628 | { |
1276 | ev_io_set (&once->io, fd, events); |
1629 | ev_io_set (&once->io, fd, events); |
1277 | ev_io_start (EV_A_ &once->io); |
1630 | ev_io_start (EV_A_ &once->io); |
1278 | } |
1631 | } |
1279 | |
1632 | |
1280 | ev_watcher_init (&once->to, once_cb_to); |
1633 | ev_init (&once->to, once_cb_to); |
1281 | if (timeout >= 0.) |
1634 | if (timeout >= 0.) |
1282 | { |
1635 | { |
1283 | ev_timer_set (&once->to, timeout, 0.); |
1636 | ev_timer_set (&once->to, timeout, 0.); |
1284 | ev_timer_start (EV_A_ &once->to); |
1637 | ev_timer_start (EV_A_ &once->to); |
1285 | } |
1638 | } |
1286 | } |
1639 | } |
1287 | } |
1640 | } |
1288 | |
1641 | |
1289 | /*****************************************************************************/ |
1642 | #ifdef __cplusplus |
1290 | |
|
|
1291 | #if 0 |
|
|
1292 | |
|
|
1293 | struct ev_io wio; |
|
|
1294 | |
|
|
1295 | static void |
|
|
1296 | sin_cb (struct ev_io *w, int revents) |
|
|
1297 | { |
|
|
1298 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1299 | } |
1643 | } |
1300 | |
|
|
1301 | static void |
|
|
1302 | ocb (struct ev_timer *w, int revents) |
|
|
1303 | { |
|
|
1304 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1305 | ev_timer_stop (w); |
|
|
1306 | ev_timer_start (w); |
|
|
1307 | } |
|
|
1308 | |
|
|
1309 | static void |
|
|
1310 | scb (struct ev_signal *w, int revents) |
|
|
1311 | { |
|
|
1312 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1313 | ev_io_stop (&wio); |
|
|
1314 | ev_io_start (&wio); |
|
|
1315 | } |
|
|
1316 | |
|
|
1317 | static void |
|
|
1318 | gcb (struct ev_signal *w, int revents) |
|
|
1319 | { |
|
|
1320 | fprintf (stderr, "generic %x\n", revents); |
|
|
1321 | |
|
|
1322 | } |
|
|
1323 | |
|
|
1324 | int main (void) |
|
|
1325 | { |
|
|
1326 | ev_init (0); |
|
|
1327 | |
|
|
1328 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1329 | ev_io_start (&wio); |
|
|
1330 | |
|
|
1331 | struct ev_timer t[10000]; |
|
|
1332 | |
|
|
1333 | #if 0 |
|
|
1334 | int i; |
|
|
1335 | for (i = 0; i < 10000; ++i) |
|
|
1336 | { |
|
|
1337 | struct ev_timer *w = t + i; |
|
|
1338 | ev_watcher_init (w, ocb, i); |
|
|
1339 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1340 | ev_timer_start (w); |
|
|
1341 | if (drand48 () < 0.5) |
|
|
1342 | ev_timer_stop (w); |
|
|
1343 | } |
|
|
1344 | #endif |
1644 | #endif |
1345 | |
1645 | |
1346 | struct ev_timer t1; |
|
|
1347 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1348 | ev_timer_start (&t1); |
|
|
1349 | |
|
|
1350 | struct ev_signal sig; |
|
|
1351 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1352 | ev_signal_start (&sig); |
|
|
1353 | |
|
|
1354 | struct ev_check cw; |
|
|
1355 | ev_check_init (&cw, gcb); |
|
|
1356 | ev_check_start (&cw); |
|
|
1357 | |
|
|
1358 | struct ev_idle iw; |
|
|
1359 | ev_idle_init (&iw, gcb); |
|
|
1360 | ev_idle_start (&iw); |
|
|
1361 | |
|
|
1362 | ev_loop (0); |
|
|
1363 | |
|
|
1364 | return 0; |
|
|
1365 | } |
|
|
1366 | |
|
|
1367 | #endif |
|
|
1368 | |
|
|
1369 | |
|
|
1370 | |
|
|
1371 | |
|
|