… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
|
|
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
31 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
32 | # include "config.h" |
37 | # include "config.h" |
33 | |
38 | |
34 | # if HAVE_CLOCK_GETTIME |
39 | # if HAVE_CLOCK_GETTIME |
|
|
40 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
41 | # define EV_USE_MONOTONIC 1 |
|
|
42 | # endif |
|
|
43 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
44 | # define EV_USE_REALTIME 1 |
|
|
45 | # endif |
|
|
46 | # else |
|
|
47 | # ifndef EV_USE_MONOTONIC |
|
|
48 | # define EV_USE_MONOTONIC 0 |
|
|
49 | # endif |
|
|
50 | # ifndef EV_USE_REALTIME |
|
|
51 | # define EV_USE_REALTIME 0 |
|
|
52 | # endif |
37 | # endif |
53 | # endif |
38 | |
54 | |
|
|
55 | # ifndef EV_USE_SELECT |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
56 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
40 | # define EV_USE_SELECT 1 |
57 | # define EV_USE_SELECT 1 |
|
|
58 | # else |
|
|
59 | # define EV_USE_SELECT 0 |
|
|
60 | # endif |
41 | # endif |
61 | # endif |
42 | |
62 | |
|
|
63 | # ifndef EV_USE_POLL |
43 | # if HAVE_POLL && HAVE_POLL_H |
64 | # if HAVE_POLL && HAVE_POLL_H |
44 | # define EV_USE_POLL 1 |
65 | # define EV_USE_POLL 1 |
|
|
66 | # else |
|
|
67 | # define EV_USE_POLL 0 |
|
|
68 | # endif |
45 | # endif |
69 | # endif |
46 | |
70 | |
|
|
71 | # ifndef EV_USE_EPOLL |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
72 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
48 | # define EV_USE_EPOLL 1 |
73 | # define EV_USE_EPOLL 1 |
|
|
74 | # else |
|
|
75 | # define EV_USE_EPOLL 0 |
|
|
76 | # endif |
49 | # endif |
77 | # endif |
50 | |
78 | |
|
|
79 | # ifndef EV_USE_KQUEUE |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
80 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
52 | # define EV_USE_KQUEUE 1 |
81 | # define EV_USE_KQUEUE 1 |
|
|
82 | # else |
|
|
83 | # define EV_USE_KQUEUE 0 |
|
|
84 | # endif |
|
|
85 | # endif |
|
|
86 | |
|
|
87 | # ifndef EV_USE_PORT |
|
|
88 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
89 | # define EV_USE_PORT 1 |
|
|
90 | # else |
|
|
91 | # define EV_USE_PORT 0 |
|
|
92 | # endif |
53 | # endif |
93 | # endif |
54 | |
94 | |
55 | #endif |
95 | #endif |
56 | |
96 | |
57 | #include <math.h> |
97 | #include <math.h> |
58 | #include <stdlib.h> |
98 | #include <stdlib.h> |
59 | #include <unistd.h> |
|
|
60 | #include <fcntl.h> |
99 | #include <fcntl.h> |
61 | #include <signal.h> |
|
|
62 | #include <stddef.h> |
100 | #include <stddef.h> |
63 | |
101 | |
64 | #include <stdio.h> |
102 | #include <stdio.h> |
65 | |
103 | |
66 | #include <assert.h> |
104 | #include <assert.h> |
67 | #include <errno.h> |
105 | #include <errno.h> |
68 | #include <sys/types.h> |
106 | #include <sys/types.h> |
|
|
107 | #include <time.h> |
|
|
108 | |
|
|
109 | #include <signal.h> |
|
|
110 | |
69 | #ifndef WIN32 |
111 | #ifndef _WIN32 |
|
|
112 | # include <unistd.h> |
|
|
113 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
114 | # include <sys/wait.h> |
|
|
115 | #else |
|
|
116 | # define WIN32_LEAN_AND_MEAN |
|
|
117 | # include <windows.h> |
|
|
118 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
119 | # define EV_SELECT_IS_WINSOCKET 1 |
71 | #endif |
120 | # endif |
72 | #include <sys/time.h> |
121 | #endif |
73 | #include <time.h> |
|
|
74 | |
122 | |
75 | /**/ |
123 | /**/ |
76 | |
124 | |
77 | #ifndef EV_USE_MONOTONIC |
125 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
126 | # define EV_USE_MONOTONIC 0 |
|
|
127 | #endif |
|
|
128 | |
|
|
129 | #ifndef EV_USE_REALTIME |
|
|
130 | # define EV_USE_REALTIME 0 |
79 | #endif |
131 | #endif |
80 | |
132 | |
81 | #ifndef EV_USE_SELECT |
133 | #ifndef EV_USE_SELECT |
82 | # define EV_USE_SELECT 1 |
134 | # define EV_USE_SELECT 1 |
83 | #endif |
135 | #endif |
84 | |
136 | |
85 | #ifndef EV_USE_POLL |
137 | #ifndef EV_USE_POLL |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
138 | # ifdef _WIN32 |
|
|
139 | # define EV_USE_POLL 0 |
|
|
140 | # else |
|
|
141 | # define EV_USE_POLL 1 |
|
|
142 | # endif |
87 | #endif |
143 | #endif |
88 | |
144 | |
89 | #ifndef EV_USE_EPOLL |
145 | #ifndef EV_USE_EPOLL |
90 | # define EV_USE_EPOLL 0 |
146 | # define EV_USE_EPOLL 0 |
91 | #endif |
147 | #endif |
92 | |
148 | |
93 | #ifndef EV_USE_KQUEUE |
149 | #ifndef EV_USE_KQUEUE |
94 | # define EV_USE_KQUEUE 0 |
150 | # define EV_USE_KQUEUE 0 |
95 | #endif |
151 | #endif |
96 | |
152 | |
97 | #ifndef EV_USE_WIN32 |
|
|
98 | # ifdef WIN32 |
|
|
99 | # define EV_USE_WIN32 1 |
|
|
100 | # else |
|
|
101 | # define EV_USE_WIN32 0 |
|
|
102 | # endif |
|
|
103 | #endif |
|
|
104 | |
|
|
105 | #ifndef EV_USE_REALTIME |
153 | #ifndef EV_USE_PORT |
106 | # define EV_USE_REALTIME 1 |
154 | # define EV_USE_PORT 0 |
107 | #endif |
155 | #endif |
108 | |
156 | |
109 | /**/ |
157 | /**/ |
110 | |
158 | |
111 | #ifndef CLOCK_MONOTONIC |
159 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
116 | #ifndef CLOCK_REALTIME |
164 | #ifndef CLOCK_REALTIME |
117 | # undef EV_USE_REALTIME |
165 | # undef EV_USE_REALTIME |
118 | # define EV_USE_REALTIME 0 |
166 | # define EV_USE_REALTIME 0 |
119 | #endif |
167 | #endif |
120 | |
168 | |
|
|
169 | #if EV_SELECT_IS_WINSOCKET |
|
|
170 | # include <winsock.h> |
|
|
171 | #endif |
|
|
172 | |
121 | /**/ |
173 | /**/ |
122 | |
174 | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
175 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
124 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
176 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
125 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
177 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
126 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
178 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
127 | |
179 | |
|
|
180 | #ifdef EV_H |
|
|
181 | # include EV_H |
|
|
182 | #else |
128 | #include "ev.h" |
183 | # include "ev.h" |
|
|
184 | #endif |
129 | |
185 | |
130 | #if __GNUC__ >= 3 |
186 | #if __GNUC__ >= 3 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
187 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
132 | # define inline inline |
188 | # define inline static inline |
133 | #else |
189 | #else |
134 | # define expect(expr,value) (expr) |
190 | # define expect(expr,value) (expr) |
135 | # define inline static |
191 | # define inline static |
136 | #endif |
192 | #endif |
137 | |
193 | |
… | |
… | |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
195 | #define expect_true(expr) expect ((expr) != 0, 1) |
140 | |
196 | |
141 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
197 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
142 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
198 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
143 | |
199 | |
|
|
200 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
201 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
202 | |
144 | typedef struct ev_watcher *W; |
203 | typedef struct ev_watcher *W; |
145 | typedef struct ev_watcher_list *WL; |
204 | typedef struct ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
205 | typedef struct ev_watcher_time *WT; |
147 | |
206 | |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
207 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
149 | |
208 | |
|
|
209 | #ifdef _WIN32 |
|
|
210 | # include "ev_win32.c" |
|
|
211 | #endif |
|
|
212 | |
150 | /*****************************************************************************/ |
213 | /*****************************************************************************/ |
151 | |
214 | |
|
|
215 | static void (*syserr_cb)(const char *msg); |
|
|
216 | |
|
|
217 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
218 | { |
|
|
219 | syserr_cb = cb; |
|
|
220 | } |
|
|
221 | |
|
|
222 | static void |
|
|
223 | syserr (const char *msg) |
|
|
224 | { |
|
|
225 | if (!msg) |
|
|
226 | msg = "(libev) system error"; |
|
|
227 | |
|
|
228 | if (syserr_cb) |
|
|
229 | syserr_cb (msg); |
|
|
230 | else |
|
|
231 | { |
|
|
232 | perror (msg); |
|
|
233 | abort (); |
|
|
234 | } |
|
|
235 | } |
|
|
236 | |
|
|
237 | static void *(*alloc)(void *ptr, long size); |
|
|
238 | |
|
|
239 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
240 | { |
|
|
241 | alloc = cb; |
|
|
242 | } |
|
|
243 | |
|
|
244 | static void * |
|
|
245 | ev_realloc (void *ptr, long size) |
|
|
246 | { |
|
|
247 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
248 | |
|
|
249 | if (!ptr && size) |
|
|
250 | { |
|
|
251 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
252 | abort (); |
|
|
253 | } |
|
|
254 | |
|
|
255 | return ptr; |
|
|
256 | } |
|
|
257 | |
|
|
258 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
259 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
260 | |
|
|
261 | /*****************************************************************************/ |
|
|
262 | |
152 | typedef struct |
263 | typedef struct |
153 | { |
264 | { |
154 | struct ev_watcher_list *head; |
265 | WL head; |
155 | unsigned char events; |
266 | unsigned char events; |
156 | unsigned char reify; |
267 | unsigned char reify; |
|
|
268 | #if EV_SELECT_IS_WINSOCKET |
|
|
269 | SOCKET handle; |
|
|
270 | #endif |
157 | } ANFD; |
271 | } ANFD; |
158 | |
272 | |
159 | typedef struct |
273 | typedef struct |
160 | { |
274 | { |
161 | W w; |
275 | W w; |
162 | int events; |
276 | int events; |
163 | } ANPENDING; |
277 | } ANPENDING; |
164 | |
278 | |
165 | #if EV_MULTIPLICITY |
279 | #if EV_MULTIPLICITY |
166 | |
280 | |
167 | struct ev_loop |
281 | struct ev_loop |
168 | { |
282 | { |
|
|
283 | ev_tstamp ev_rt_now; |
|
|
284 | #define ev_rt_now ((loop)->ev_rt_now) |
169 | # define VAR(name,decl) decl; |
285 | #define VAR(name,decl) decl; |
170 | # include "ev_vars.h" |
286 | #include "ev_vars.h" |
171 | }; |
|
|
172 | # undef VAR |
287 | #undef VAR |
|
|
288 | }; |
173 | # include "ev_wrap.h" |
289 | #include "ev_wrap.h" |
|
|
290 | |
|
|
291 | static struct ev_loop default_loop_struct; |
|
|
292 | struct ev_loop *ev_default_loop_ptr; |
174 | |
293 | |
175 | #else |
294 | #else |
176 | |
295 | |
|
|
296 | ev_tstamp ev_rt_now; |
177 | # define VAR(name,decl) static decl; |
297 | #define VAR(name,decl) static decl; |
178 | # include "ev_vars.h" |
298 | #include "ev_vars.h" |
179 | # undef VAR |
299 | #undef VAR |
|
|
300 | |
|
|
301 | static int ev_default_loop_ptr; |
180 | |
302 | |
181 | #endif |
303 | #endif |
182 | |
304 | |
183 | /*****************************************************************************/ |
305 | /*****************************************************************************/ |
184 | |
306 | |
185 | inline ev_tstamp |
307 | ev_tstamp |
186 | ev_time (void) |
308 | ev_time (void) |
187 | { |
309 | { |
188 | #if EV_USE_REALTIME |
310 | #if EV_USE_REALTIME |
189 | struct timespec ts; |
311 | struct timespec ts; |
190 | clock_gettime (CLOCK_REALTIME, &ts); |
312 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
209 | #endif |
331 | #endif |
210 | |
332 | |
211 | return ev_time (); |
333 | return ev_time (); |
212 | } |
334 | } |
213 | |
335 | |
|
|
336 | #if EV_MULTIPLICITY |
214 | ev_tstamp |
337 | ev_tstamp |
215 | ev_now (EV_P) |
338 | ev_now (EV_P) |
216 | { |
339 | { |
217 | return rt_now; |
340 | return ev_rt_now; |
218 | } |
341 | } |
|
|
342 | #endif |
219 | |
343 | |
220 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
344 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
221 | |
345 | |
222 | #define array_needsize(base,cur,cnt,init) \ |
346 | #define array_needsize(type,base,cur,cnt,init) \ |
223 | if (expect_false ((cnt) > cur)) \ |
347 | if (expect_false ((cnt) > cur)) \ |
224 | { \ |
348 | { \ |
225 | int newcnt = cur; \ |
349 | int newcnt = cur; \ |
226 | do \ |
350 | do \ |
227 | { \ |
351 | { \ |
228 | newcnt = array_roundsize (base, newcnt << 1); \ |
352 | newcnt = array_roundsize (type, newcnt << 1); \ |
229 | } \ |
353 | } \ |
230 | while ((cnt) > newcnt); \ |
354 | while ((cnt) > newcnt); \ |
231 | \ |
355 | \ |
232 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
356 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
233 | init (base + cur, newcnt - cur); \ |
357 | init (base + cur, newcnt - cur); \ |
234 | cur = newcnt; \ |
358 | cur = newcnt; \ |
|
|
359 | } |
|
|
360 | |
|
|
361 | #define array_slim(type,stem) \ |
|
|
362 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
363 | { \ |
|
|
364 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
365 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
366 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
235 | } |
367 | } |
236 | |
368 | |
237 | #define array_free(stem, idx) \ |
369 | #define array_free(stem, idx) \ |
238 | free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
370 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
239 | |
371 | |
240 | /*****************************************************************************/ |
372 | /*****************************************************************************/ |
241 | |
373 | |
242 | static void |
374 | static void |
243 | anfds_init (ANFD *base, int count) |
375 | anfds_init (ANFD *base, int count) |
… | |
… | |
250 | |
382 | |
251 | ++base; |
383 | ++base; |
252 | } |
384 | } |
253 | } |
385 | } |
254 | |
386 | |
255 | static void |
387 | void |
256 | event (EV_P_ W w, int events) |
388 | ev_feed_event (EV_P_ void *w, int revents) |
257 | { |
389 | { |
258 | if (w->pending) |
390 | W w_ = (W)w; |
|
|
391 | |
|
|
392 | if (expect_false (w_->pending)) |
259 | { |
393 | { |
260 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
394 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
261 | return; |
395 | return; |
262 | } |
396 | } |
263 | |
397 | |
264 | w->pending = ++pendingcnt [ABSPRI (w)]; |
398 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
265 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
399 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
266 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
400 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
267 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
401 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
268 | } |
402 | } |
269 | |
403 | |
270 | static void |
404 | static void |
271 | queue_events (EV_P_ W *events, int eventcnt, int type) |
405 | queue_events (EV_P_ W *events, int eventcnt, int type) |
272 | { |
406 | { |
273 | int i; |
407 | int i; |
274 | |
408 | |
275 | for (i = 0; i < eventcnt; ++i) |
409 | for (i = 0; i < eventcnt; ++i) |
276 | event (EV_A_ events [i], type); |
410 | ev_feed_event (EV_A_ events [i], type); |
277 | } |
411 | } |
278 | |
412 | |
279 | static void |
413 | inline void |
280 | fd_event (EV_P_ int fd, int events) |
414 | fd_event (EV_P_ int fd, int revents) |
281 | { |
415 | { |
282 | ANFD *anfd = anfds + fd; |
416 | ANFD *anfd = anfds + fd; |
283 | struct ev_io *w; |
417 | struct ev_io *w; |
284 | |
418 | |
285 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
419 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
286 | { |
420 | { |
287 | int ev = w->events & events; |
421 | int ev = w->events & revents; |
288 | |
422 | |
289 | if (ev) |
423 | if (ev) |
290 | event (EV_A_ (W)w, ev); |
424 | ev_feed_event (EV_A_ (W)w, ev); |
291 | } |
425 | } |
|
|
426 | } |
|
|
427 | |
|
|
428 | void |
|
|
429 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
430 | { |
|
|
431 | fd_event (EV_A_ fd, revents); |
292 | } |
432 | } |
293 | |
433 | |
294 | /*****************************************************************************/ |
434 | /*****************************************************************************/ |
295 | |
435 | |
296 | static void |
436 | inline void |
297 | fd_reify (EV_P) |
437 | fd_reify (EV_P) |
298 | { |
438 | { |
299 | int i; |
439 | int i; |
300 | |
440 | |
301 | for (i = 0; i < fdchangecnt; ++i) |
441 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
307 | int events = 0; |
447 | int events = 0; |
308 | |
448 | |
309 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
449 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
310 | events |= w->events; |
450 | events |= w->events; |
311 | |
451 | |
|
|
452 | #if EV_SELECT_IS_WINSOCKET |
|
|
453 | if (events) |
|
|
454 | { |
|
|
455 | unsigned long argp; |
|
|
456 | anfd->handle = _get_osfhandle (fd); |
|
|
457 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
458 | } |
|
|
459 | #endif |
|
|
460 | |
312 | anfd->reify = 0; |
461 | anfd->reify = 0; |
313 | |
462 | |
314 | method_modify (EV_A_ fd, anfd->events, events); |
463 | backend_modify (EV_A_ fd, anfd->events, events); |
315 | anfd->events = events; |
464 | anfd->events = events; |
316 | } |
465 | } |
317 | |
466 | |
318 | fdchangecnt = 0; |
467 | fdchangecnt = 0; |
319 | } |
468 | } |
320 | |
469 | |
321 | static void |
470 | static void |
322 | fd_change (EV_P_ int fd) |
471 | fd_change (EV_P_ int fd) |
323 | { |
472 | { |
324 | if (anfds [fd].reify || fdchangecnt < 0) |
473 | if (expect_false (anfds [fd].reify)) |
325 | return; |
474 | return; |
326 | |
475 | |
327 | anfds [fd].reify = 1; |
476 | anfds [fd].reify = 1; |
328 | |
477 | |
329 | ++fdchangecnt; |
478 | ++fdchangecnt; |
330 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
479 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
331 | fdchanges [fdchangecnt - 1] = fd; |
480 | fdchanges [fdchangecnt - 1] = fd; |
332 | } |
481 | } |
333 | |
482 | |
334 | static void |
483 | static void |
335 | fd_kill (EV_P_ int fd) |
484 | fd_kill (EV_P_ int fd) |
… | |
… | |
337 | struct ev_io *w; |
486 | struct ev_io *w; |
338 | |
487 | |
339 | while ((w = (struct ev_io *)anfds [fd].head)) |
488 | while ((w = (struct ev_io *)anfds [fd].head)) |
340 | { |
489 | { |
341 | ev_io_stop (EV_A_ w); |
490 | ev_io_stop (EV_A_ w); |
342 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
491 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
343 | } |
492 | } |
|
|
493 | } |
|
|
494 | |
|
|
495 | inline int |
|
|
496 | fd_valid (int fd) |
|
|
497 | { |
|
|
498 | #ifdef _WIN32 |
|
|
499 | return _get_osfhandle (fd) != -1; |
|
|
500 | #else |
|
|
501 | return fcntl (fd, F_GETFD) != -1; |
|
|
502 | #endif |
344 | } |
503 | } |
345 | |
504 | |
346 | /* called on EBADF to verify fds */ |
505 | /* called on EBADF to verify fds */ |
347 | static void |
506 | static void |
348 | fd_ebadf (EV_P) |
507 | fd_ebadf (EV_P) |
349 | { |
508 | { |
350 | int fd; |
509 | int fd; |
351 | |
510 | |
352 | for (fd = 0; fd < anfdmax; ++fd) |
511 | for (fd = 0; fd < anfdmax; ++fd) |
353 | if (anfds [fd].events) |
512 | if (anfds [fd].events) |
354 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
513 | if (!fd_valid (fd) == -1 && errno == EBADF) |
355 | fd_kill (EV_A_ fd); |
514 | fd_kill (EV_A_ fd); |
356 | } |
515 | } |
357 | |
516 | |
358 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
517 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
359 | static void |
518 | static void |
… | |
… | |
362 | int fd; |
521 | int fd; |
363 | |
522 | |
364 | for (fd = anfdmax; fd--; ) |
523 | for (fd = anfdmax; fd--; ) |
365 | if (anfds [fd].events) |
524 | if (anfds [fd].events) |
366 | { |
525 | { |
367 | close (fd); |
|
|
368 | fd_kill (EV_A_ fd); |
526 | fd_kill (EV_A_ fd); |
369 | return; |
527 | return; |
370 | } |
528 | } |
371 | } |
529 | } |
372 | |
530 | |
373 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
531 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
374 | static void |
532 | static void |
375 | fd_rearm_all (EV_P) |
533 | fd_rearm_all (EV_P) |
376 | { |
534 | { |
377 | int fd; |
535 | int fd; |
378 | |
536 | |
… | |
… | |
426 | |
584 | |
427 | heap [k] = w; |
585 | heap [k] = w; |
428 | ((W)heap [k])->active = k + 1; |
586 | ((W)heap [k])->active = k + 1; |
429 | } |
587 | } |
430 | |
588 | |
|
|
589 | inline void |
|
|
590 | adjustheap (WT *heap, int N, int k) |
|
|
591 | { |
|
|
592 | upheap (heap, k); |
|
|
593 | downheap (heap, N, k); |
|
|
594 | } |
|
|
595 | |
431 | /*****************************************************************************/ |
596 | /*****************************************************************************/ |
432 | |
597 | |
433 | typedef struct |
598 | typedef struct |
434 | { |
599 | { |
435 | struct ev_watcher_list *head; |
600 | WL head; |
436 | sig_atomic_t volatile gotsig; |
601 | sig_atomic_t volatile gotsig; |
437 | } ANSIG; |
602 | } ANSIG; |
438 | |
603 | |
439 | static ANSIG *signals; |
604 | static ANSIG *signals; |
440 | static int signalmax; |
605 | static int signalmax; |
… | |
… | |
456 | } |
621 | } |
457 | |
622 | |
458 | static void |
623 | static void |
459 | sighandler (int signum) |
624 | sighandler (int signum) |
460 | { |
625 | { |
|
|
626 | #if _WIN32 |
|
|
627 | signal (signum, sighandler); |
|
|
628 | #endif |
|
|
629 | |
461 | signals [signum - 1].gotsig = 1; |
630 | signals [signum - 1].gotsig = 1; |
462 | |
631 | |
463 | if (!gotsig) |
632 | if (!gotsig) |
464 | { |
633 | { |
465 | int old_errno = errno; |
634 | int old_errno = errno; |
… | |
… | |
467 | write (sigpipe [1], &signum, 1); |
636 | write (sigpipe [1], &signum, 1); |
468 | errno = old_errno; |
637 | errno = old_errno; |
469 | } |
638 | } |
470 | } |
639 | } |
471 | |
640 | |
|
|
641 | void |
|
|
642 | ev_feed_signal_event (EV_P_ int signum) |
|
|
643 | { |
|
|
644 | WL w; |
|
|
645 | |
|
|
646 | #if EV_MULTIPLICITY |
|
|
647 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
648 | #endif |
|
|
649 | |
|
|
650 | --signum; |
|
|
651 | |
|
|
652 | if (signum < 0 || signum >= signalmax) |
|
|
653 | return; |
|
|
654 | |
|
|
655 | signals [signum].gotsig = 0; |
|
|
656 | |
|
|
657 | for (w = signals [signum].head; w; w = w->next) |
|
|
658 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
659 | } |
|
|
660 | |
472 | static void |
661 | static void |
473 | sigcb (EV_P_ struct ev_io *iow, int revents) |
662 | sigcb (EV_P_ struct ev_io *iow, int revents) |
474 | { |
663 | { |
475 | struct ev_watcher_list *w; |
|
|
476 | int signum; |
664 | int signum; |
477 | |
665 | |
478 | read (sigpipe [0], &revents, 1); |
666 | read (sigpipe [0], &revents, 1); |
479 | gotsig = 0; |
667 | gotsig = 0; |
480 | |
668 | |
481 | for (signum = signalmax; signum--; ) |
669 | for (signum = signalmax; signum--; ) |
482 | if (signals [signum].gotsig) |
670 | if (signals [signum].gotsig) |
483 | { |
671 | ev_feed_signal_event (EV_A_ signum + 1); |
484 | signals [signum].gotsig = 0; |
672 | } |
485 | |
673 | |
486 | for (w = signals [signum].head; w; w = w->next) |
674 | static void |
487 | event (EV_A_ (W)w, EV_SIGNAL); |
675 | fd_intern (int fd) |
488 | } |
676 | { |
|
|
677 | #ifdef _WIN32 |
|
|
678 | int arg = 1; |
|
|
679 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
680 | #else |
|
|
681 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
682 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
683 | #endif |
489 | } |
684 | } |
490 | |
685 | |
491 | static void |
686 | static void |
492 | siginit (EV_P) |
687 | siginit (EV_P) |
493 | { |
688 | { |
494 | #ifndef WIN32 |
689 | fd_intern (sigpipe [0]); |
495 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
690 | fd_intern (sigpipe [1]); |
496 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
497 | |
|
|
498 | /* rather than sort out wether we really need nb, set it */ |
|
|
499 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
500 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
501 | #endif |
|
|
502 | |
691 | |
503 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
692 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
504 | ev_io_start (EV_A_ &sigev); |
693 | ev_io_start (EV_A_ &sigev); |
505 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
694 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
506 | } |
695 | } |
507 | |
696 | |
508 | /*****************************************************************************/ |
697 | /*****************************************************************************/ |
509 | |
698 | |
510 | #ifndef WIN32 |
|
|
511 | |
|
|
512 | static struct ev_child *childs [PID_HASHSIZE]; |
699 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
700 | |
|
|
701 | #ifndef _WIN32 |
|
|
702 | |
513 | static struct ev_signal childev; |
703 | static struct ev_signal childev; |
514 | |
704 | |
515 | #ifndef WCONTINUED |
705 | #ifndef WCONTINUED |
516 | # define WCONTINUED 0 |
706 | # define WCONTINUED 0 |
517 | #endif |
707 | #endif |
… | |
… | |
525 | if (w->pid == pid || !w->pid) |
715 | if (w->pid == pid || !w->pid) |
526 | { |
716 | { |
527 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
717 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
528 | w->rpid = pid; |
718 | w->rpid = pid; |
529 | w->rstatus = status; |
719 | w->rstatus = status; |
530 | event (EV_A_ (W)w, EV_CHILD); |
720 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
531 | } |
721 | } |
532 | } |
722 | } |
533 | |
723 | |
534 | static void |
724 | static void |
535 | childcb (EV_P_ struct ev_signal *sw, int revents) |
725 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
537 | int pid, status; |
727 | int pid, status; |
538 | |
728 | |
539 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
729 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
540 | { |
730 | { |
541 | /* make sure we are called again until all childs have been reaped */ |
731 | /* make sure we are called again until all childs have been reaped */ |
|
|
732 | /* we need to do it this way so that the callback gets called before we continue */ |
542 | event (EV_A_ (W)sw, EV_SIGNAL); |
733 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
543 | |
734 | |
544 | child_reap (EV_A_ sw, pid, pid, status); |
735 | child_reap (EV_A_ sw, pid, pid, status); |
545 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
736 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
546 | } |
737 | } |
547 | } |
738 | } |
548 | |
739 | |
549 | #endif |
740 | #endif |
550 | |
741 | |
551 | /*****************************************************************************/ |
742 | /*****************************************************************************/ |
552 | |
743 | |
|
|
744 | #if EV_USE_PORT |
|
|
745 | # include "ev_port.c" |
|
|
746 | #endif |
553 | #if EV_USE_KQUEUE |
747 | #if EV_USE_KQUEUE |
554 | # include "ev_kqueue.c" |
748 | # include "ev_kqueue.c" |
555 | #endif |
749 | #endif |
556 | #if EV_USE_EPOLL |
750 | #if EV_USE_EPOLL |
557 | # include "ev_epoll.c" |
751 | # include "ev_epoll.c" |
… | |
… | |
577 | |
771 | |
578 | /* return true if we are running with elevated privileges and should ignore env variables */ |
772 | /* return true if we are running with elevated privileges and should ignore env variables */ |
579 | static int |
773 | static int |
580 | enable_secure (void) |
774 | enable_secure (void) |
581 | { |
775 | { |
582 | #ifdef WIN32 |
776 | #ifdef _WIN32 |
583 | return 0; |
777 | return 0; |
584 | #else |
778 | #else |
585 | return getuid () != geteuid () |
779 | return getuid () != geteuid () |
586 | || getgid () != getegid (); |
780 | || getgid () != getegid (); |
587 | #endif |
781 | #endif |
588 | } |
782 | } |
589 | |
783 | |
590 | int |
784 | unsigned int |
591 | ev_method (EV_P) |
785 | ev_supported_backends (void) |
592 | { |
786 | { |
593 | return method; |
787 | unsigned int flags = 0; |
594 | } |
|
|
595 | |
788 | |
596 | static void |
789 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
597 | loop_init (EV_P_ int methods) |
790 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
791 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
792 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
793 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
794 | |
|
|
795 | return flags; |
|
|
796 | } |
|
|
797 | |
|
|
798 | unsigned int |
|
|
799 | ev_recommended_backends (void) |
598 | { |
800 | { |
599 | if (!method) |
801 | unsigned int flags = ev_supported_backends (); |
|
|
802 | |
|
|
803 | #ifndef __NetBSD__ |
|
|
804 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
805 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
806 | flags &= ~EVBACKEND_KQUEUE; |
|
|
807 | #endif |
|
|
808 | #ifdef __APPLE__ |
|
|
809 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
810 | flags &= ~EVBACKEND_POLL; |
|
|
811 | #endif |
|
|
812 | |
|
|
813 | return flags; |
|
|
814 | } |
|
|
815 | |
|
|
816 | unsigned int |
|
|
817 | ev_backend (EV_P) |
|
|
818 | { |
|
|
819 | return backend; |
|
|
820 | } |
|
|
821 | |
|
|
822 | static void |
|
|
823 | loop_init (EV_P_ unsigned int flags) |
|
|
824 | { |
|
|
825 | if (!backend) |
600 | { |
826 | { |
601 | #if EV_USE_MONOTONIC |
827 | #if EV_USE_MONOTONIC |
602 | { |
828 | { |
603 | struct timespec ts; |
829 | struct timespec ts; |
604 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
830 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
605 | have_monotonic = 1; |
831 | have_monotonic = 1; |
606 | } |
832 | } |
607 | #endif |
833 | #endif |
608 | |
834 | |
609 | rt_now = ev_time (); |
835 | ev_rt_now = ev_time (); |
610 | mn_now = get_clock (); |
836 | mn_now = get_clock (); |
611 | now_floor = mn_now; |
837 | now_floor = mn_now; |
612 | rtmn_diff = rt_now - mn_now; |
838 | rtmn_diff = ev_rt_now - mn_now; |
613 | |
839 | |
614 | if (methods == EVMETHOD_AUTO) |
840 | if (!(flags & EVFLAG_NOENV) |
615 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
841 | && !enable_secure () |
|
|
842 | && getenv ("LIBEV_FLAGS")) |
616 | methods = atoi (getenv ("LIBEV_METHODS")); |
843 | flags = atoi (getenv ("LIBEV_FLAGS")); |
617 | else |
|
|
618 | methods = EVMETHOD_ANY; |
|
|
619 | |
844 | |
620 | method = 0; |
845 | if (!(flags & 0x0000ffffUL)) |
621 | #if EV_USE_WIN32 |
846 | flags |= ev_recommended_backends (); |
622 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
847 | |
|
|
848 | backend = 0; |
|
|
849 | #if EV_USE_PORT |
|
|
850 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
623 | #endif |
851 | #endif |
624 | #if EV_USE_KQUEUE |
852 | #if EV_USE_KQUEUE |
625 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
853 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
626 | #endif |
854 | #endif |
627 | #if EV_USE_EPOLL |
855 | #if EV_USE_EPOLL |
628 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
856 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
629 | #endif |
857 | #endif |
630 | #if EV_USE_POLL |
858 | #if EV_USE_POLL |
631 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
859 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
632 | #endif |
860 | #endif |
633 | #if EV_USE_SELECT |
861 | #if EV_USE_SELECT |
634 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
862 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
635 | #endif |
863 | #endif |
636 | } |
|
|
637 | } |
|
|
638 | |
864 | |
639 | void |
865 | ev_init (&sigev, sigcb); |
|
|
866 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
867 | } |
|
|
868 | } |
|
|
869 | |
|
|
870 | static void |
640 | loop_destroy (EV_P) |
871 | loop_destroy (EV_P) |
641 | { |
872 | { |
642 | int i; |
873 | int i; |
643 | |
874 | |
644 | #if EV_USE_WIN32 |
875 | #if EV_USE_PORT |
645 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
876 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
646 | #endif |
877 | #endif |
647 | #if EV_USE_KQUEUE |
878 | #if EV_USE_KQUEUE |
648 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
879 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
649 | #endif |
880 | #endif |
650 | #if EV_USE_EPOLL |
881 | #if EV_USE_EPOLL |
651 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
882 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
652 | #endif |
883 | #endif |
653 | #if EV_USE_POLL |
884 | #if EV_USE_POLL |
654 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
885 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
655 | #endif |
886 | #endif |
656 | #if EV_USE_SELECT |
887 | #if EV_USE_SELECT |
657 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
888 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
658 | #endif |
889 | #endif |
659 | |
890 | |
660 | for (i = NUMPRI; i--; ) |
891 | for (i = NUMPRI; i--; ) |
661 | array_free (pending, [i]); |
892 | array_free (pending, [i]); |
662 | |
893 | |
|
|
894 | /* have to use the microsoft-never-gets-it-right macro */ |
663 | array_free (fdchange, ); |
895 | array_free (fdchange, EMPTY0); |
664 | array_free (timer, ); |
896 | array_free (timer, EMPTY0); |
|
|
897 | #if EV_PERIODICS |
665 | array_free (periodic, ); |
898 | array_free (periodic, EMPTY0); |
|
|
899 | #endif |
666 | array_free (idle, ); |
900 | array_free (idle, EMPTY0); |
667 | array_free (prepare, ); |
901 | array_free (prepare, EMPTY0); |
668 | array_free (check, ); |
902 | array_free (check, EMPTY0); |
669 | |
903 | |
670 | method = 0; |
904 | backend = 0; |
671 | /*TODO*/ |
|
|
672 | } |
905 | } |
673 | |
906 | |
674 | void |
907 | static void |
675 | loop_fork (EV_P) |
908 | loop_fork (EV_P) |
676 | { |
909 | { |
677 | /*TODO*/ |
910 | #if EV_USE_PORT |
|
|
911 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
912 | #endif |
|
|
913 | #if EV_USE_KQUEUE |
|
|
914 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
915 | #endif |
678 | #if EV_USE_EPOLL |
916 | #if EV_USE_EPOLL |
679 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
917 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
680 | #endif |
918 | #endif |
681 | #if EV_USE_KQUEUE |
919 | |
682 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
920 | if (ev_is_active (&sigev)) |
683 | #endif |
921 | { |
|
|
922 | /* default loop */ |
|
|
923 | |
|
|
924 | ev_ref (EV_A); |
|
|
925 | ev_io_stop (EV_A_ &sigev); |
|
|
926 | close (sigpipe [0]); |
|
|
927 | close (sigpipe [1]); |
|
|
928 | |
|
|
929 | while (pipe (sigpipe)) |
|
|
930 | syserr ("(libev) error creating pipe"); |
|
|
931 | |
|
|
932 | siginit (EV_A); |
|
|
933 | } |
|
|
934 | |
|
|
935 | postfork = 0; |
684 | } |
936 | } |
685 | |
937 | |
686 | #if EV_MULTIPLICITY |
938 | #if EV_MULTIPLICITY |
687 | struct ev_loop * |
939 | struct ev_loop * |
688 | ev_loop_new (int methods) |
940 | ev_loop_new (unsigned int flags) |
689 | { |
941 | { |
690 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
942 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
691 | |
943 | |
|
|
944 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
945 | |
692 | loop_init (EV_A_ methods); |
946 | loop_init (EV_A_ flags); |
693 | |
947 | |
694 | if (ev_method (EV_A)) |
948 | if (ev_backend (EV_A)) |
695 | return loop; |
949 | return loop; |
696 | |
950 | |
697 | return 0; |
951 | return 0; |
698 | } |
952 | } |
699 | |
953 | |
700 | void |
954 | void |
701 | ev_loop_destroy (EV_P) |
955 | ev_loop_destroy (EV_P) |
702 | { |
956 | { |
703 | loop_destroy (EV_A); |
957 | loop_destroy (EV_A); |
704 | free (loop); |
958 | ev_free (loop); |
705 | } |
959 | } |
706 | |
960 | |
707 | void |
961 | void |
708 | ev_loop_fork (EV_P) |
962 | ev_loop_fork (EV_P) |
709 | { |
963 | { |
710 | loop_fork (EV_A); |
964 | postfork = 1; |
711 | } |
965 | } |
712 | |
966 | |
713 | #endif |
967 | #endif |
714 | |
968 | |
715 | #if EV_MULTIPLICITY |
969 | #if EV_MULTIPLICITY |
716 | struct ev_loop default_loop_struct; |
|
|
717 | static struct ev_loop *default_loop; |
|
|
718 | |
|
|
719 | struct ev_loop * |
970 | struct ev_loop * |
|
|
971 | ev_default_loop_init (unsigned int flags) |
720 | #else |
972 | #else |
721 | static int default_loop; |
|
|
722 | |
|
|
723 | int |
973 | int |
|
|
974 | ev_default_loop (unsigned int flags) |
724 | #endif |
975 | #endif |
725 | ev_default_loop (int methods) |
|
|
726 | { |
976 | { |
727 | if (sigpipe [0] == sigpipe [1]) |
977 | if (sigpipe [0] == sigpipe [1]) |
728 | if (pipe (sigpipe)) |
978 | if (pipe (sigpipe)) |
729 | return 0; |
979 | return 0; |
730 | |
980 | |
731 | if (!default_loop) |
981 | if (!ev_default_loop_ptr) |
732 | { |
982 | { |
733 | #if EV_MULTIPLICITY |
983 | #if EV_MULTIPLICITY |
734 | struct ev_loop *loop = default_loop = &default_loop_struct; |
984 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
735 | #else |
985 | #else |
736 | default_loop = 1; |
986 | ev_default_loop_ptr = 1; |
737 | #endif |
987 | #endif |
738 | |
988 | |
739 | loop_init (EV_A_ methods); |
989 | loop_init (EV_A_ flags); |
740 | |
990 | |
741 | if (ev_method (EV_A)) |
991 | if (ev_backend (EV_A)) |
742 | { |
992 | { |
743 | ev_watcher_init (&sigev, sigcb); |
|
|
744 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
745 | siginit (EV_A); |
993 | siginit (EV_A); |
746 | |
994 | |
747 | #ifndef WIN32 |
995 | #ifndef _WIN32 |
748 | ev_signal_init (&childev, childcb, SIGCHLD); |
996 | ev_signal_init (&childev, childcb, SIGCHLD); |
749 | ev_set_priority (&childev, EV_MAXPRI); |
997 | ev_set_priority (&childev, EV_MAXPRI); |
750 | ev_signal_start (EV_A_ &childev); |
998 | ev_signal_start (EV_A_ &childev); |
751 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
999 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
752 | #endif |
1000 | #endif |
753 | } |
1001 | } |
754 | else |
1002 | else |
755 | default_loop = 0; |
1003 | ev_default_loop_ptr = 0; |
756 | } |
1004 | } |
757 | |
1005 | |
758 | return default_loop; |
1006 | return ev_default_loop_ptr; |
759 | } |
1007 | } |
760 | |
1008 | |
761 | void |
1009 | void |
762 | ev_default_destroy (void) |
1010 | ev_default_destroy (void) |
763 | { |
1011 | { |
764 | #if EV_MULTIPLICITY |
1012 | #if EV_MULTIPLICITY |
765 | struct ev_loop *loop = default_loop; |
1013 | struct ev_loop *loop = ev_default_loop_ptr; |
766 | #endif |
1014 | #endif |
767 | |
1015 | |
|
|
1016 | #ifndef _WIN32 |
768 | ev_ref (EV_A); /* child watcher */ |
1017 | ev_ref (EV_A); /* child watcher */ |
769 | ev_signal_stop (EV_A_ &childev); |
1018 | ev_signal_stop (EV_A_ &childev); |
|
|
1019 | #endif |
770 | |
1020 | |
771 | ev_ref (EV_A); /* signal watcher */ |
1021 | ev_ref (EV_A); /* signal watcher */ |
772 | ev_io_stop (EV_A_ &sigev); |
1022 | ev_io_stop (EV_A_ &sigev); |
773 | |
1023 | |
774 | close (sigpipe [0]); sigpipe [0] = 0; |
1024 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
779 | |
1029 | |
780 | void |
1030 | void |
781 | ev_default_fork (void) |
1031 | ev_default_fork (void) |
782 | { |
1032 | { |
783 | #if EV_MULTIPLICITY |
1033 | #if EV_MULTIPLICITY |
784 | struct ev_loop *loop = default_loop; |
1034 | struct ev_loop *loop = ev_default_loop_ptr; |
785 | #endif |
1035 | #endif |
786 | |
1036 | |
787 | loop_fork (EV_A); |
1037 | if (backend) |
788 | |
1038 | postfork = 1; |
789 | ev_io_stop (EV_A_ &sigev); |
|
|
790 | close (sigpipe [0]); |
|
|
791 | close (sigpipe [1]); |
|
|
792 | pipe (sigpipe); |
|
|
793 | |
|
|
794 | ev_ref (EV_A); /* signal watcher */ |
|
|
795 | siginit (EV_A); |
|
|
796 | } |
1039 | } |
797 | |
1040 | |
798 | /*****************************************************************************/ |
1041 | /*****************************************************************************/ |
799 | |
1042 | |
800 | static void |
1043 | static int |
|
|
1044 | any_pending (EV_P) |
|
|
1045 | { |
|
|
1046 | int pri; |
|
|
1047 | |
|
|
1048 | for (pri = NUMPRI; pri--; ) |
|
|
1049 | if (pendingcnt [pri]) |
|
|
1050 | return 1; |
|
|
1051 | |
|
|
1052 | return 0; |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | inline void |
801 | call_pending (EV_P) |
1056 | call_pending (EV_P) |
802 | { |
1057 | { |
803 | int pri; |
1058 | int pri; |
804 | |
1059 | |
805 | for (pri = NUMPRI; pri--; ) |
1060 | for (pri = NUMPRI; pri--; ) |
806 | while (pendingcnt [pri]) |
1061 | while (pendingcnt [pri]) |
807 | { |
1062 | { |
808 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1063 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
809 | |
1064 | |
810 | if (p->w) |
1065 | if (expect_true (p->w)) |
811 | { |
1066 | { |
812 | p->w->pending = 0; |
1067 | p->w->pending = 0; |
813 | p->w->cb (EV_A_ p->w, p->events); |
1068 | EV_CB_INVOKE (p->w, p->events); |
814 | } |
1069 | } |
815 | } |
1070 | } |
816 | } |
1071 | } |
817 | |
1072 | |
818 | static void |
1073 | inline void |
819 | timers_reify (EV_P) |
1074 | timers_reify (EV_P) |
820 | { |
1075 | { |
821 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1076 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
822 | { |
1077 | { |
823 | struct ev_timer *w = timers [0]; |
1078 | struct ev_timer *w = timers [0]; |
… | |
… | |
826 | |
1081 | |
827 | /* first reschedule or stop timer */ |
1082 | /* first reschedule or stop timer */ |
828 | if (w->repeat) |
1083 | if (w->repeat) |
829 | { |
1084 | { |
830 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1085 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1086 | |
831 | ((WT)w)->at = mn_now + w->repeat; |
1087 | ((WT)w)->at += w->repeat; |
|
|
1088 | if (((WT)w)->at < mn_now) |
|
|
1089 | ((WT)w)->at = mn_now; |
|
|
1090 | |
832 | downheap ((WT *)timers, timercnt, 0); |
1091 | downheap ((WT *)timers, timercnt, 0); |
833 | } |
1092 | } |
834 | else |
1093 | else |
835 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1094 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
836 | |
1095 | |
837 | event (EV_A_ (W)w, EV_TIMEOUT); |
1096 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
838 | } |
1097 | } |
839 | } |
1098 | } |
840 | |
1099 | |
841 | static void |
1100 | #if EV_PERIODICS |
|
|
1101 | inline void |
842 | periodics_reify (EV_P) |
1102 | periodics_reify (EV_P) |
843 | { |
1103 | { |
844 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1104 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
845 | { |
1105 | { |
846 | struct ev_periodic *w = periodics [0]; |
1106 | struct ev_periodic *w = periodics [0]; |
847 | |
1107 | |
848 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1108 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
849 | |
1109 | |
850 | /* first reschedule or stop timer */ |
1110 | /* first reschedule or stop timer */ |
851 | if (w->interval) |
1111 | if (w->reschedule_cb) |
852 | { |
1112 | { |
|
|
1113 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1114 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1115 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1116 | } |
|
|
1117 | else if (w->interval) |
|
|
1118 | { |
853 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1119 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
854 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1120 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
855 | downheap ((WT *)periodics, periodiccnt, 0); |
1121 | downheap ((WT *)periodics, periodiccnt, 0); |
856 | } |
1122 | } |
857 | else |
1123 | else |
858 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1124 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
859 | |
1125 | |
860 | event (EV_A_ (W)w, EV_PERIODIC); |
1126 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
861 | } |
1127 | } |
862 | } |
1128 | } |
863 | |
1129 | |
864 | static void |
1130 | static void |
865 | periodics_reschedule (EV_P) |
1131 | periodics_reschedule (EV_P) |
… | |
… | |
869 | /* adjust periodics after time jump */ |
1135 | /* adjust periodics after time jump */ |
870 | for (i = 0; i < periodiccnt; ++i) |
1136 | for (i = 0; i < periodiccnt; ++i) |
871 | { |
1137 | { |
872 | struct ev_periodic *w = periodics [i]; |
1138 | struct ev_periodic *w = periodics [i]; |
873 | |
1139 | |
|
|
1140 | if (w->reschedule_cb) |
|
|
1141 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
874 | if (w->interval) |
1142 | else if (w->interval) |
875 | { |
|
|
876 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1143 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
877 | |
|
|
878 | if (fabs (diff) >= 1e-4) |
|
|
879 | { |
|
|
880 | ev_periodic_stop (EV_A_ w); |
|
|
881 | ev_periodic_start (EV_A_ w); |
|
|
882 | |
|
|
883 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
884 | } |
|
|
885 | } |
|
|
886 | } |
1144 | } |
|
|
1145 | |
|
|
1146 | /* now rebuild the heap */ |
|
|
1147 | for (i = periodiccnt >> 1; i--; ) |
|
|
1148 | downheap ((WT *)periodics, periodiccnt, i); |
887 | } |
1149 | } |
|
|
1150 | #endif |
888 | |
1151 | |
889 | inline int |
1152 | inline int |
890 | time_update_monotonic (EV_P) |
1153 | time_update_monotonic (EV_P) |
891 | { |
1154 | { |
892 | mn_now = get_clock (); |
1155 | mn_now = get_clock (); |
893 | |
1156 | |
894 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1157 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
895 | { |
1158 | { |
896 | rt_now = rtmn_diff + mn_now; |
1159 | ev_rt_now = rtmn_diff + mn_now; |
897 | return 0; |
1160 | return 0; |
898 | } |
1161 | } |
899 | else |
1162 | else |
900 | { |
1163 | { |
901 | now_floor = mn_now; |
1164 | now_floor = mn_now; |
902 | rt_now = ev_time (); |
1165 | ev_rt_now = ev_time (); |
903 | return 1; |
1166 | return 1; |
904 | } |
1167 | } |
905 | } |
1168 | } |
906 | |
1169 | |
907 | static void |
1170 | inline void |
908 | time_update (EV_P) |
1171 | time_update (EV_P) |
909 | { |
1172 | { |
910 | int i; |
1173 | int i; |
911 | |
1174 | |
912 | #if EV_USE_MONOTONIC |
1175 | #if EV_USE_MONOTONIC |
… | |
… | |
916 | { |
1179 | { |
917 | ev_tstamp odiff = rtmn_diff; |
1180 | ev_tstamp odiff = rtmn_diff; |
918 | |
1181 | |
919 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1182 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
920 | { |
1183 | { |
921 | rtmn_diff = rt_now - mn_now; |
1184 | rtmn_diff = ev_rt_now - mn_now; |
922 | |
1185 | |
923 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1186 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
924 | return; /* all is well */ |
1187 | return; /* all is well */ |
925 | |
1188 | |
926 | rt_now = ev_time (); |
1189 | ev_rt_now = ev_time (); |
927 | mn_now = get_clock (); |
1190 | mn_now = get_clock (); |
928 | now_floor = mn_now; |
1191 | now_floor = mn_now; |
929 | } |
1192 | } |
930 | |
1193 | |
|
|
1194 | # if EV_PERIODICS |
931 | periodics_reschedule (EV_A); |
1195 | periodics_reschedule (EV_A); |
|
|
1196 | # endif |
932 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1197 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
933 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1198 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
934 | } |
1199 | } |
935 | } |
1200 | } |
936 | else |
1201 | else |
937 | #endif |
1202 | #endif |
938 | { |
1203 | { |
939 | rt_now = ev_time (); |
1204 | ev_rt_now = ev_time (); |
940 | |
1205 | |
941 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1206 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
942 | { |
1207 | { |
|
|
1208 | #if EV_PERIODICS |
943 | periodics_reschedule (EV_A); |
1209 | periodics_reschedule (EV_A); |
|
|
1210 | #endif |
944 | |
1211 | |
945 | /* adjust timers. this is easy, as the offset is the same for all */ |
1212 | /* adjust timers. this is easy, as the offset is the same for all */ |
946 | for (i = 0; i < timercnt; ++i) |
1213 | for (i = 0; i < timercnt; ++i) |
947 | ((WT)timers [i])->at += rt_now - mn_now; |
1214 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
948 | } |
1215 | } |
949 | |
1216 | |
950 | mn_now = rt_now; |
1217 | mn_now = ev_rt_now; |
951 | } |
1218 | } |
952 | } |
1219 | } |
953 | |
1220 | |
954 | void |
1221 | void |
955 | ev_ref (EV_P) |
1222 | ev_ref (EV_P) |
… | |
… | |
969 | ev_loop (EV_P_ int flags) |
1236 | ev_loop (EV_P_ int flags) |
970 | { |
1237 | { |
971 | double block; |
1238 | double block; |
972 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1239 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
973 | |
1240 | |
974 | do |
1241 | while (activecnt) |
975 | { |
1242 | { |
976 | /* queue check watchers (and execute them) */ |
1243 | /* queue check watchers (and execute them) */ |
977 | if (expect_false (preparecnt)) |
1244 | if (expect_false (preparecnt)) |
978 | { |
1245 | { |
979 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1246 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
980 | call_pending (EV_A); |
1247 | call_pending (EV_A); |
981 | } |
1248 | } |
982 | |
1249 | |
|
|
1250 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1251 | if (expect_false (postfork)) |
|
|
1252 | loop_fork (EV_A); |
|
|
1253 | |
983 | /* update fd-related kernel structures */ |
1254 | /* update fd-related kernel structures */ |
984 | fd_reify (EV_A); |
1255 | fd_reify (EV_A); |
985 | |
1256 | |
986 | /* calculate blocking time */ |
1257 | /* calculate blocking time */ |
987 | |
1258 | |
988 | /* we only need this for !monotonic clockor timers, but as we basically |
1259 | /* we only need this for !monotonic clock or timers, but as we basically |
989 | always have timers, we just calculate it always */ |
1260 | always have timers, we just calculate it always */ |
990 | #if EV_USE_MONOTONIC |
1261 | #if EV_USE_MONOTONIC |
991 | if (expect_true (have_monotonic)) |
1262 | if (expect_true (have_monotonic)) |
992 | time_update_monotonic (EV_A); |
1263 | time_update_monotonic (EV_A); |
993 | else |
1264 | else |
994 | #endif |
1265 | #endif |
995 | { |
1266 | { |
996 | rt_now = ev_time (); |
1267 | ev_rt_now = ev_time (); |
997 | mn_now = rt_now; |
1268 | mn_now = ev_rt_now; |
998 | } |
1269 | } |
999 | |
1270 | |
1000 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1271 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1001 | block = 0.; |
1272 | block = 0.; |
1002 | else |
1273 | else |
1003 | { |
1274 | { |
1004 | block = MAX_BLOCKTIME; |
1275 | block = MAX_BLOCKTIME; |
1005 | |
1276 | |
1006 | if (timercnt) |
1277 | if (timercnt) |
1007 | { |
1278 | { |
1008 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1279 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1009 | if (block > to) block = to; |
1280 | if (block > to) block = to; |
1010 | } |
1281 | } |
1011 | |
1282 | |
|
|
1283 | #if EV_PERIODICS |
1012 | if (periodiccnt) |
1284 | if (periodiccnt) |
1013 | { |
1285 | { |
1014 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1286 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1015 | if (block > to) block = to; |
1287 | if (block > to) block = to; |
1016 | } |
1288 | } |
|
|
1289 | #endif |
1017 | |
1290 | |
1018 | if (block < 0.) block = 0.; |
1291 | if (expect_false (block < 0.)) block = 0.; |
1019 | } |
1292 | } |
1020 | |
1293 | |
1021 | method_poll (EV_A_ block); |
1294 | backend_poll (EV_A_ block); |
1022 | |
1295 | |
1023 | /* update rt_now, do magic */ |
1296 | /* update ev_rt_now, do magic */ |
1024 | time_update (EV_A); |
1297 | time_update (EV_A); |
1025 | |
1298 | |
1026 | /* queue pending timers and reschedule them */ |
1299 | /* queue pending timers and reschedule them */ |
1027 | timers_reify (EV_A); /* relative timers called last */ |
1300 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1301 | #if EV_PERIODICS |
1028 | periodics_reify (EV_A); /* absolute timers called first */ |
1302 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1303 | #endif |
1029 | |
1304 | |
1030 | /* queue idle watchers unless io or timers are pending */ |
1305 | /* queue idle watchers unless io or timers are pending */ |
1031 | if (!pendingcnt) |
1306 | if (idlecnt && !any_pending (EV_A)) |
1032 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1307 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1033 | |
1308 | |
1034 | /* queue check watchers, to be executed first */ |
1309 | /* queue check watchers, to be executed first */ |
1035 | if (checkcnt) |
1310 | if (expect_false (checkcnt)) |
1036 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1311 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1037 | |
1312 | |
1038 | call_pending (EV_A); |
1313 | call_pending (EV_A); |
|
|
1314 | |
|
|
1315 | if (expect_false (loop_done)) |
|
|
1316 | break; |
1039 | } |
1317 | } |
1040 | while (activecnt && !loop_done); |
|
|
1041 | |
1318 | |
1042 | if (loop_done != 2) |
1319 | if (loop_done != 2) |
1043 | loop_done = 0; |
1320 | loop_done = 0; |
1044 | } |
1321 | } |
1045 | |
1322 | |
… | |
… | |
1105 | void |
1382 | void |
1106 | ev_io_start (EV_P_ struct ev_io *w) |
1383 | ev_io_start (EV_P_ struct ev_io *w) |
1107 | { |
1384 | { |
1108 | int fd = w->fd; |
1385 | int fd = w->fd; |
1109 | |
1386 | |
1110 | if (ev_is_active (w)) |
1387 | if (expect_false (ev_is_active (w))) |
1111 | return; |
1388 | return; |
1112 | |
1389 | |
1113 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1390 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1114 | |
1391 | |
1115 | ev_start (EV_A_ (W)w, 1); |
1392 | ev_start (EV_A_ (W)w, 1); |
1116 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1393 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1117 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1394 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1118 | |
1395 | |
1119 | fd_change (EV_A_ fd); |
1396 | fd_change (EV_A_ fd); |
1120 | } |
1397 | } |
1121 | |
1398 | |
1122 | void |
1399 | void |
1123 | ev_io_stop (EV_P_ struct ev_io *w) |
1400 | ev_io_stop (EV_P_ struct ev_io *w) |
1124 | { |
1401 | { |
1125 | ev_clear_pending (EV_A_ (W)w); |
1402 | ev_clear_pending (EV_A_ (W)w); |
1126 | if (!ev_is_active (w)) |
1403 | if (expect_false (!ev_is_active (w))) |
1127 | return; |
1404 | return; |
|
|
1405 | |
|
|
1406 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1128 | |
1407 | |
1129 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1408 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1130 | ev_stop (EV_A_ (W)w); |
1409 | ev_stop (EV_A_ (W)w); |
1131 | |
1410 | |
1132 | fd_change (EV_A_ w->fd); |
1411 | fd_change (EV_A_ w->fd); |
1133 | } |
1412 | } |
1134 | |
1413 | |
1135 | void |
1414 | void |
1136 | ev_timer_start (EV_P_ struct ev_timer *w) |
1415 | ev_timer_start (EV_P_ struct ev_timer *w) |
1137 | { |
1416 | { |
1138 | if (ev_is_active (w)) |
1417 | if (expect_false (ev_is_active (w))) |
1139 | return; |
1418 | return; |
1140 | |
1419 | |
1141 | ((WT)w)->at += mn_now; |
1420 | ((WT)w)->at += mn_now; |
1142 | |
1421 | |
1143 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1422 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1144 | |
1423 | |
1145 | ev_start (EV_A_ (W)w, ++timercnt); |
1424 | ev_start (EV_A_ (W)w, ++timercnt); |
1146 | array_needsize (timers, timermax, timercnt, ); |
1425 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1147 | timers [timercnt - 1] = w; |
1426 | timers [timercnt - 1] = w; |
1148 | upheap ((WT *)timers, timercnt - 1); |
1427 | upheap ((WT *)timers, timercnt - 1); |
1149 | |
1428 | |
1150 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1429 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1151 | } |
1430 | } |
1152 | |
1431 | |
1153 | void |
1432 | void |
1154 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1433 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1155 | { |
1434 | { |
1156 | ev_clear_pending (EV_A_ (W)w); |
1435 | ev_clear_pending (EV_A_ (W)w); |
1157 | if (!ev_is_active (w)) |
1436 | if (expect_false (!ev_is_active (w))) |
1158 | return; |
1437 | return; |
1159 | |
1438 | |
1160 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1439 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1161 | |
1440 | |
1162 | if (((W)w)->active < timercnt--) |
1441 | if (expect_true (((W)w)->active < timercnt--)) |
1163 | { |
1442 | { |
1164 | timers [((W)w)->active - 1] = timers [timercnt]; |
1443 | timers [((W)w)->active - 1] = timers [timercnt]; |
1165 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1444 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1166 | } |
1445 | } |
1167 | |
1446 | |
1168 | ((WT)w)->at = w->repeat; |
1447 | ((WT)w)->at -= mn_now; |
1169 | |
1448 | |
1170 | ev_stop (EV_A_ (W)w); |
1449 | ev_stop (EV_A_ (W)w); |
1171 | } |
1450 | } |
1172 | |
1451 | |
1173 | void |
1452 | void |
… | |
… | |
1176 | if (ev_is_active (w)) |
1455 | if (ev_is_active (w)) |
1177 | { |
1456 | { |
1178 | if (w->repeat) |
1457 | if (w->repeat) |
1179 | { |
1458 | { |
1180 | ((WT)w)->at = mn_now + w->repeat; |
1459 | ((WT)w)->at = mn_now + w->repeat; |
1181 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1460 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1182 | } |
1461 | } |
1183 | else |
1462 | else |
1184 | ev_timer_stop (EV_A_ w); |
1463 | ev_timer_stop (EV_A_ w); |
1185 | } |
1464 | } |
1186 | else if (w->repeat) |
1465 | else if (w->repeat) |
|
|
1466 | { |
|
|
1467 | w->at = w->repeat; |
1187 | ev_timer_start (EV_A_ w); |
1468 | ev_timer_start (EV_A_ w); |
|
|
1469 | } |
1188 | } |
1470 | } |
1189 | |
1471 | |
|
|
1472 | #if EV_PERIODICS |
1190 | void |
1473 | void |
1191 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1474 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1192 | { |
1475 | { |
1193 | if (ev_is_active (w)) |
1476 | if (expect_false (ev_is_active (w))) |
1194 | return; |
1477 | return; |
1195 | |
1478 | |
|
|
1479 | if (w->reschedule_cb) |
|
|
1480 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1481 | else if (w->interval) |
|
|
1482 | { |
1196 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1483 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1197 | |
|
|
1198 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1484 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1199 | if (w->interval) |
|
|
1200 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1485 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1486 | } |
1201 | |
1487 | |
1202 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1488 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1203 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1489 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1204 | periodics [periodiccnt - 1] = w; |
1490 | periodics [periodiccnt - 1] = w; |
1205 | upheap ((WT *)periodics, periodiccnt - 1); |
1491 | upheap ((WT *)periodics, periodiccnt - 1); |
1206 | |
1492 | |
1207 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1493 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1208 | } |
1494 | } |
1209 | |
1495 | |
1210 | void |
1496 | void |
1211 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1497 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1212 | { |
1498 | { |
1213 | ev_clear_pending (EV_A_ (W)w); |
1499 | ev_clear_pending (EV_A_ (W)w); |
1214 | if (!ev_is_active (w)) |
1500 | if (expect_false (!ev_is_active (w))) |
1215 | return; |
1501 | return; |
1216 | |
1502 | |
1217 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1503 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1218 | |
1504 | |
1219 | if (((W)w)->active < periodiccnt--) |
1505 | if (expect_true (((W)w)->active < periodiccnt--)) |
1220 | { |
1506 | { |
1221 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1507 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1222 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1508 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1223 | } |
1509 | } |
1224 | |
1510 | |
1225 | ev_stop (EV_A_ (W)w); |
1511 | ev_stop (EV_A_ (W)w); |
1226 | } |
1512 | } |
1227 | |
1513 | |
1228 | void |
1514 | void |
|
|
1515 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1516 | { |
|
|
1517 | /* TODO: use adjustheap and recalculation */ |
|
|
1518 | ev_periodic_stop (EV_A_ w); |
|
|
1519 | ev_periodic_start (EV_A_ w); |
|
|
1520 | } |
|
|
1521 | #endif |
|
|
1522 | |
|
|
1523 | void |
1229 | ev_idle_start (EV_P_ struct ev_idle *w) |
1524 | ev_idle_start (EV_P_ struct ev_idle *w) |
1230 | { |
1525 | { |
1231 | if (ev_is_active (w)) |
1526 | if (expect_false (ev_is_active (w))) |
1232 | return; |
1527 | return; |
1233 | |
1528 | |
1234 | ev_start (EV_A_ (W)w, ++idlecnt); |
1529 | ev_start (EV_A_ (W)w, ++idlecnt); |
1235 | array_needsize (idles, idlemax, idlecnt, ); |
1530 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1236 | idles [idlecnt - 1] = w; |
1531 | idles [idlecnt - 1] = w; |
1237 | } |
1532 | } |
1238 | |
1533 | |
1239 | void |
1534 | void |
1240 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1535 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1241 | { |
1536 | { |
1242 | ev_clear_pending (EV_A_ (W)w); |
1537 | ev_clear_pending (EV_A_ (W)w); |
1243 | if (ev_is_active (w)) |
1538 | if (expect_false (!ev_is_active (w))) |
1244 | return; |
1539 | return; |
1245 | |
1540 | |
1246 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1541 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1247 | ev_stop (EV_A_ (W)w); |
1542 | ev_stop (EV_A_ (W)w); |
1248 | } |
1543 | } |
1249 | |
1544 | |
1250 | void |
1545 | void |
1251 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1546 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1252 | { |
1547 | { |
1253 | if (ev_is_active (w)) |
1548 | if (expect_false (ev_is_active (w))) |
1254 | return; |
1549 | return; |
1255 | |
1550 | |
1256 | ev_start (EV_A_ (W)w, ++preparecnt); |
1551 | ev_start (EV_A_ (W)w, ++preparecnt); |
1257 | array_needsize (prepares, preparemax, preparecnt, ); |
1552 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1258 | prepares [preparecnt - 1] = w; |
1553 | prepares [preparecnt - 1] = w; |
1259 | } |
1554 | } |
1260 | |
1555 | |
1261 | void |
1556 | void |
1262 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1557 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1263 | { |
1558 | { |
1264 | ev_clear_pending (EV_A_ (W)w); |
1559 | ev_clear_pending (EV_A_ (W)w); |
1265 | if (ev_is_active (w)) |
1560 | if (expect_false (!ev_is_active (w))) |
1266 | return; |
1561 | return; |
1267 | |
1562 | |
1268 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1563 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1269 | ev_stop (EV_A_ (W)w); |
1564 | ev_stop (EV_A_ (W)w); |
1270 | } |
1565 | } |
1271 | |
1566 | |
1272 | void |
1567 | void |
1273 | ev_check_start (EV_P_ struct ev_check *w) |
1568 | ev_check_start (EV_P_ struct ev_check *w) |
1274 | { |
1569 | { |
1275 | if (ev_is_active (w)) |
1570 | if (expect_false (ev_is_active (w))) |
1276 | return; |
1571 | return; |
1277 | |
1572 | |
1278 | ev_start (EV_A_ (W)w, ++checkcnt); |
1573 | ev_start (EV_A_ (W)w, ++checkcnt); |
1279 | array_needsize (checks, checkmax, checkcnt, ); |
1574 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1280 | checks [checkcnt - 1] = w; |
1575 | checks [checkcnt - 1] = w; |
1281 | } |
1576 | } |
1282 | |
1577 | |
1283 | void |
1578 | void |
1284 | ev_check_stop (EV_P_ struct ev_check *w) |
1579 | ev_check_stop (EV_P_ struct ev_check *w) |
1285 | { |
1580 | { |
1286 | ev_clear_pending (EV_A_ (W)w); |
1581 | ev_clear_pending (EV_A_ (W)w); |
1287 | if (ev_is_active (w)) |
1582 | if (expect_false (!ev_is_active (w))) |
1288 | return; |
1583 | return; |
1289 | |
1584 | |
1290 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1585 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1291 | ev_stop (EV_A_ (W)w); |
1586 | ev_stop (EV_A_ (W)w); |
1292 | } |
1587 | } |
… | |
… | |
1297 | |
1592 | |
1298 | void |
1593 | void |
1299 | ev_signal_start (EV_P_ struct ev_signal *w) |
1594 | ev_signal_start (EV_P_ struct ev_signal *w) |
1300 | { |
1595 | { |
1301 | #if EV_MULTIPLICITY |
1596 | #if EV_MULTIPLICITY |
1302 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1597 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1303 | #endif |
1598 | #endif |
1304 | if (ev_is_active (w)) |
1599 | if (expect_false (ev_is_active (w))) |
1305 | return; |
1600 | return; |
1306 | |
1601 | |
1307 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1602 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1308 | |
1603 | |
1309 | ev_start (EV_A_ (W)w, 1); |
1604 | ev_start (EV_A_ (W)w, 1); |
1310 | array_needsize (signals, signalmax, w->signum, signals_init); |
1605 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1311 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1606 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1312 | |
1607 | |
1313 | if (!((WL)w)->next) |
1608 | if (!((WL)w)->next) |
1314 | { |
1609 | { |
|
|
1610 | #if _WIN32 |
|
|
1611 | signal (w->signum, sighandler); |
|
|
1612 | #else |
1315 | struct sigaction sa; |
1613 | struct sigaction sa; |
1316 | sa.sa_handler = sighandler; |
1614 | sa.sa_handler = sighandler; |
1317 | sigfillset (&sa.sa_mask); |
1615 | sigfillset (&sa.sa_mask); |
1318 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1616 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1319 | sigaction (w->signum, &sa, 0); |
1617 | sigaction (w->signum, &sa, 0); |
|
|
1618 | #endif |
1320 | } |
1619 | } |
1321 | } |
1620 | } |
1322 | |
1621 | |
1323 | void |
1622 | void |
1324 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1623 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1325 | { |
1624 | { |
1326 | ev_clear_pending (EV_A_ (W)w); |
1625 | ev_clear_pending (EV_A_ (W)w); |
1327 | if (!ev_is_active (w)) |
1626 | if (expect_false (!ev_is_active (w))) |
1328 | return; |
1627 | return; |
1329 | |
1628 | |
1330 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1629 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1331 | ev_stop (EV_A_ (W)w); |
1630 | ev_stop (EV_A_ (W)w); |
1332 | |
1631 | |
… | |
… | |
1336 | |
1635 | |
1337 | void |
1636 | void |
1338 | ev_child_start (EV_P_ struct ev_child *w) |
1637 | ev_child_start (EV_P_ struct ev_child *w) |
1339 | { |
1638 | { |
1340 | #if EV_MULTIPLICITY |
1639 | #if EV_MULTIPLICITY |
1341 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1640 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1342 | #endif |
1641 | #endif |
1343 | if (ev_is_active (w)) |
1642 | if (expect_false (ev_is_active (w))) |
1344 | return; |
1643 | return; |
1345 | |
1644 | |
1346 | ev_start (EV_A_ (W)w, 1); |
1645 | ev_start (EV_A_ (W)w, 1); |
1347 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1646 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1348 | } |
1647 | } |
1349 | |
1648 | |
1350 | void |
1649 | void |
1351 | ev_child_stop (EV_P_ struct ev_child *w) |
1650 | ev_child_stop (EV_P_ struct ev_child *w) |
1352 | { |
1651 | { |
1353 | ev_clear_pending (EV_A_ (W)w); |
1652 | ev_clear_pending (EV_A_ (W)w); |
1354 | if (ev_is_active (w)) |
1653 | if (expect_false (!ev_is_active (w))) |
1355 | return; |
1654 | return; |
1356 | |
1655 | |
1357 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1656 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1358 | ev_stop (EV_A_ (W)w); |
1657 | ev_stop (EV_A_ (W)w); |
1359 | } |
1658 | } |
… | |
… | |
1374 | void (*cb)(int revents, void *arg) = once->cb; |
1673 | void (*cb)(int revents, void *arg) = once->cb; |
1375 | void *arg = once->arg; |
1674 | void *arg = once->arg; |
1376 | |
1675 | |
1377 | ev_io_stop (EV_A_ &once->io); |
1676 | ev_io_stop (EV_A_ &once->io); |
1378 | ev_timer_stop (EV_A_ &once->to); |
1677 | ev_timer_stop (EV_A_ &once->to); |
1379 | free (once); |
1678 | ev_free (once); |
1380 | |
1679 | |
1381 | cb (revents, arg); |
1680 | cb (revents, arg); |
1382 | } |
1681 | } |
1383 | |
1682 | |
1384 | static void |
1683 | static void |
… | |
… | |
1394 | } |
1693 | } |
1395 | |
1694 | |
1396 | void |
1695 | void |
1397 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1696 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1398 | { |
1697 | { |
1399 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1698 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1400 | |
1699 | |
1401 | if (!once) |
1700 | if (expect_false (!once)) |
|
|
1701 | { |
1402 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1702 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1403 | else |
1703 | return; |
1404 | { |
1704 | } |
|
|
1705 | |
1405 | once->cb = cb; |
1706 | once->cb = cb; |
1406 | once->arg = arg; |
1707 | once->arg = arg; |
1407 | |
1708 | |
1408 | ev_watcher_init (&once->io, once_cb_io); |
1709 | ev_init (&once->io, once_cb_io); |
1409 | if (fd >= 0) |
1710 | if (fd >= 0) |
1410 | { |
1711 | { |
1411 | ev_io_set (&once->io, fd, events); |
1712 | ev_io_set (&once->io, fd, events); |
1412 | ev_io_start (EV_A_ &once->io); |
1713 | ev_io_start (EV_A_ &once->io); |
1413 | } |
1714 | } |
1414 | |
1715 | |
1415 | ev_watcher_init (&once->to, once_cb_to); |
1716 | ev_init (&once->to, once_cb_to); |
1416 | if (timeout >= 0.) |
1717 | if (timeout >= 0.) |
1417 | { |
1718 | { |
1418 | ev_timer_set (&once->to, timeout, 0.); |
1719 | ev_timer_set (&once->to, timeout, 0.); |
1419 | ev_timer_start (EV_A_ &once->to); |
1720 | ev_timer_start (EV_A_ &once->to); |
1420 | } |
|
|
1421 | } |
1721 | } |
1422 | } |
1722 | } |
1423 | |
1723 | |
|
|
1724 | #ifdef __cplusplus |
|
|
1725 | } |
|
|
1726 | #endif |
|
|
1727 | |