… | |
… | |
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 | #ifndef EV_EMBED |
31 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | #ifndef EV_STANDALONE |
|
|
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
32 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
|
|
42 | |
|
|
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
|
|
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
|
|
48 | # define EV_USE_REALTIME 1 |
|
|
49 | # endif |
|
|
50 | # else |
|
|
51 | # ifndef EV_USE_MONOTONIC |
|
|
52 | # define EV_USE_MONOTONIC 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_REALTIME |
|
|
55 | # define EV_USE_REALTIME 0 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | |
|
|
59 | # ifndef EV_USE_SELECT |
|
|
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
|
|
65 | # endif |
|
|
66 | |
|
|
67 | # ifndef EV_USE_POLL |
|
|
68 | # if HAVE_POLL && HAVE_POLL_H |
|
|
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
|
|
73 | # endif |
|
|
74 | |
|
|
75 | # ifndef EV_USE_EPOLL |
|
|
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
|
|
81 | # endif |
|
|
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
|
|
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
85 | # define EV_USE_KQUEUE 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_KQUEUE 0 |
|
|
88 | # endif |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # ifndef EV_USE_PORT |
|
|
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
93 | # define EV_USE_PORT 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_PORT 0 |
|
|
96 | # endif |
|
|
97 | # endif |
|
|
98 | |
33 | #endif |
99 | #endif |
34 | |
100 | |
35 | #include <math.h> |
101 | #include <math.h> |
36 | #include <stdlib.h> |
102 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
103 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
104 | #include <stddef.h> |
41 | |
105 | |
42 | #include <stdio.h> |
106 | #include <stdio.h> |
43 | |
107 | |
44 | #include <assert.h> |
108 | #include <assert.h> |
45 | #include <errno.h> |
109 | #include <errno.h> |
46 | #include <sys/types.h> |
110 | #include <sys/types.h> |
|
|
111 | #include <time.h> |
|
|
112 | |
|
|
113 | #include <signal.h> |
|
|
114 | |
47 | #ifndef WIN32 |
115 | #ifndef _WIN32 |
|
|
116 | # include <sys/time.h> |
48 | # include <sys/wait.h> |
117 | # include <sys/wait.h> |
|
|
118 | # include <unistd.h> |
|
|
119 | #else |
|
|
120 | # define WIN32_LEAN_AND_MEAN |
|
|
121 | # include <windows.h> |
|
|
122 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
123 | # define EV_SELECT_IS_WINSOCKET 1 |
49 | #endif |
124 | # endif |
50 | #include <sys/time.h> |
125 | #endif |
51 | #include <time.h> |
|
|
52 | |
126 | |
53 | /**/ |
127 | /**/ |
54 | |
128 | |
55 | #ifndef EV_USE_MONOTONIC |
129 | #ifndef EV_USE_MONOTONIC |
56 | # define EV_USE_MONOTONIC 1 |
130 | # define EV_USE_MONOTONIC 0 |
|
|
131 | #endif |
|
|
132 | |
|
|
133 | #ifndef EV_USE_REALTIME |
|
|
134 | # define EV_USE_REALTIME 0 |
57 | #endif |
135 | #endif |
58 | |
136 | |
59 | #ifndef EV_USE_SELECT |
137 | #ifndef EV_USE_SELECT |
60 | # define EV_USE_SELECT 1 |
138 | # define EV_USE_SELECT 1 |
61 | #endif |
139 | #endif |
62 | |
140 | |
63 | #ifndef EV_USEV_POLL |
141 | #ifndef EV_USE_POLL |
64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
142 | # ifdef _WIN32 |
|
|
143 | # define EV_USE_POLL 0 |
|
|
144 | # else |
|
|
145 | # define EV_USE_POLL 1 |
|
|
146 | # endif |
65 | #endif |
147 | #endif |
66 | |
148 | |
67 | #ifndef EV_USE_EPOLL |
149 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
150 | # define EV_USE_EPOLL 0 |
69 | #endif |
151 | #endif |
70 | |
152 | |
71 | #ifndef EV_USE_KQUEUE |
153 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
154 | # define EV_USE_KQUEUE 0 |
73 | #endif |
155 | #endif |
74 | |
156 | |
75 | #ifndef EV_USE_REALTIME |
157 | #ifndef EV_USE_PORT |
76 | # define EV_USE_REALTIME 1 |
158 | # define EV_USE_PORT 0 |
77 | #endif |
159 | #endif |
78 | |
160 | |
79 | /**/ |
161 | /**/ |
80 | |
162 | |
81 | #ifndef CLOCK_MONOTONIC |
163 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
86 | #ifndef CLOCK_REALTIME |
168 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
169 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
170 | # define EV_USE_REALTIME 0 |
89 | #endif |
171 | #endif |
90 | |
172 | |
|
|
173 | #if EV_SELECT_IS_WINSOCKET |
|
|
174 | # include <winsock.h> |
|
|
175 | #endif |
|
|
176 | |
91 | /**/ |
177 | /**/ |
92 | |
178 | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
97 | |
183 | |
98 | #ifndef EV_EMBED |
184 | #ifdef EV_H |
|
|
185 | # include EV_H |
|
|
186 | #else |
99 | # include "ev.h" |
187 | # include "ev.h" |
100 | #endif |
188 | #endif |
101 | |
189 | |
102 | #if __GNUC__ >= 3 |
190 | #if __GNUC__ >= 3 |
103 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
192 | # define inline_size static inline /* inline for codesize */ |
|
|
193 | # if EV_MINIMAL |
104 | # define inline inline |
194 | # define noinline __attribute__ ((noinline)) |
|
|
195 | # define inline_speed static noinline |
|
|
196 | # else |
|
|
197 | # define noinline |
|
|
198 | # define inline_speed static inline |
|
|
199 | # endif |
105 | #else |
200 | #else |
106 | # define expect(expr,value) (expr) |
201 | # define expect(expr,value) (expr) |
107 | # define inline static |
202 | # define inline_speed static |
|
|
203 | # define inline_minimal static |
|
|
204 | # define noinline |
108 | #endif |
205 | #endif |
109 | |
206 | |
110 | #define expect_false(expr) expect ((expr) != 0, 0) |
207 | #define expect_false(expr) expect ((expr) != 0, 0) |
111 | #define expect_true(expr) expect ((expr) != 0, 1) |
208 | #define expect_true(expr) expect ((expr) != 0, 1) |
112 | |
209 | |
113 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
210 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
114 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
211 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
115 | |
212 | |
|
|
213 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
214 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
215 | |
116 | typedef struct ev_watcher *W; |
216 | typedef ev_watcher *W; |
117 | typedef struct ev_watcher_list *WL; |
217 | typedef ev_watcher_list *WL; |
118 | typedef struct ev_watcher_time *WT; |
218 | typedef ev_watcher_time *WT; |
119 | |
219 | |
120 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
220 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
121 | |
221 | |
|
|
222 | #ifdef _WIN32 |
|
|
223 | # include "ev_win32.c" |
|
|
224 | #endif |
|
|
225 | |
122 | /*****************************************************************************/ |
226 | /*****************************************************************************/ |
123 | |
227 | |
|
|
228 | static void (*syserr_cb)(const char *msg); |
|
|
229 | |
|
|
230 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
231 | { |
|
|
232 | syserr_cb = cb; |
|
|
233 | } |
|
|
234 | |
|
|
235 | static void |
|
|
236 | syserr (const char *msg) |
|
|
237 | { |
|
|
238 | if (!msg) |
|
|
239 | msg = "(libev) system error"; |
|
|
240 | |
|
|
241 | if (syserr_cb) |
|
|
242 | syserr_cb (msg); |
|
|
243 | else |
|
|
244 | { |
|
|
245 | perror (msg); |
|
|
246 | abort (); |
|
|
247 | } |
|
|
248 | } |
|
|
249 | |
|
|
250 | static void *(*alloc)(void *ptr, long size); |
|
|
251 | |
|
|
252 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
253 | { |
|
|
254 | alloc = cb; |
|
|
255 | } |
|
|
256 | |
|
|
257 | static void * |
|
|
258 | ev_realloc (void *ptr, long size) |
|
|
259 | { |
|
|
260 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
261 | |
|
|
262 | if (!ptr && size) |
|
|
263 | { |
|
|
264 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
265 | abort (); |
|
|
266 | } |
|
|
267 | |
|
|
268 | return ptr; |
|
|
269 | } |
|
|
270 | |
|
|
271 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
272 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
273 | |
|
|
274 | /*****************************************************************************/ |
|
|
275 | |
124 | typedef struct |
276 | typedef struct |
125 | { |
277 | { |
126 | struct ev_watcher_list *head; |
278 | WL head; |
127 | unsigned char events; |
279 | unsigned char events; |
128 | unsigned char reify; |
280 | unsigned char reify; |
|
|
281 | #if EV_SELECT_IS_WINSOCKET |
|
|
282 | SOCKET handle; |
|
|
283 | #endif |
129 | } ANFD; |
284 | } ANFD; |
130 | |
285 | |
131 | typedef struct |
286 | typedef struct |
132 | { |
287 | { |
133 | W w; |
288 | W w; |
134 | int events; |
289 | int events; |
135 | } ANPENDING; |
290 | } ANPENDING; |
136 | |
291 | |
137 | #if EV_MULTIPLICITY |
292 | #if EV_MULTIPLICITY |
138 | |
293 | |
139 | struct ev_loop |
294 | struct ev_loop |
140 | { |
295 | { |
|
|
296 | ev_tstamp ev_rt_now; |
|
|
297 | #define ev_rt_now ((loop)->ev_rt_now) |
141 | # define VAR(name,decl) decl; |
298 | #define VAR(name,decl) decl; |
142 | # include "ev_vars.h" |
299 | #include "ev_vars.h" |
143 | }; |
|
|
144 | # undef VAR |
300 | #undef VAR |
|
|
301 | }; |
145 | # include "ev_wrap.h" |
302 | #include "ev_wrap.h" |
|
|
303 | |
|
|
304 | static struct ev_loop default_loop_struct; |
|
|
305 | struct ev_loop *ev_default_loop_ptr; |
146 | |
306 | |
147 | #else |
307 | #else |
148 | |
308 | |
|
|
309 | ev_tstamp ev_rt_now; |
149 | # define VAR(name,decl) static decl; |
310 | #define VAR(name,decl) static decl; |
150 | # include "ev_vars.h" |
311 | #include "ev_vars.h" |
151 | # undef VAR |
312 | #undef VAR |
|
|
313 | |
|
|
314 | static int ev_default_loop_ptr; |
152 | |
315 | |
153 | #endif |
316 | #endif |
154 | |
317 | |
155 | /*****************************************************************************/ |
318 | /*****************************************************************************/ |
156 | |
319 | |
157 | inline ev_tstamp |
320 | ev_tstamp noinline |
158 | ev_time (void) |
321 | ev_time (void) |
159 | { |
322 | { |
160 | #if EV_USE_REALTIME |
323 | #if EV_USE_REALTIME |
161 | struct timespec ts; |
324 | struct timespec ts; |
162 | clock_gettime (CLOCK_REALTIME, &ts); |
325 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
166 | gettimeofday (&tv, 0); |
329 | gettimeofday (&tv, 0); |
167 | return tv.tv_sec + tv.tv_usec * 1e-6; |
330 | return tv.tv_sec + tv.tv_usec * 1e-6; |
168 | #endif |
331 | #endif |
169 | } |
332 | } |
170 | |
333 | |
171 | inline ev_tstamp |
334 | ev_tstamp inline_size |
172 | get_clock (void) |
335 | get_clock (void) |
173 | { |
336 | { |
174 | #if EV_USE_MONOTONIC |
337 | #if EV_USE_MONOTONIC |
175 | if (expect_true (have_monotonic)) |
338 | if (expect_true (have_monotonic)) |
176 | { |
339 | { |
… | |
… | |
181 | #endif |
344 | #endif |
182 | |
345 | |
183 | return ev_time (); |
346 | return ev_time (); |
184 | } |
347 | } |
185 | |
348 | |
|
|
349 | #if EV_MULTIPLICITY |
186 | ev_tstamp |
350 | ev_tstamp |
187 | ev_now (EV_P) |
351 | ev_now (EV_P) |
188 | { |
352 | { |
189 | return rt_now; |
353 | return ev_rt_now; |
190 | } |
354 | } |
|
|
355 | #endif |
191 | |
356 | |
192 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
357 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
193 | |
358 | |
194 | #define array_needsize(base,cur,cnt,init) \ |
359 | #define array_needsize(type,base,cur,cnt,init) \ |
195 | if (expect_false ((cnt) > cur)) \ |
360 | if (expect_false ((cnt) > cur)) \ |
196 | { \ |
361 | { \ |
197 | int newcnt = cur; \ |
362 | int newcnt = cur; \ |
198 | do \ |
363 | do \ |
199 | { \ |
364 | { \ |
200 | newcnt = array_roundsize (base, newcnt << 1); \ |
365 | newcnt = array_roundsize (type, newcnt << 1); \ |
201 | } \ |
366 | } \ |
202 | while ((cnt) > newcnt); \ |
367 | while ((cnt) > newcnt); \ |
203 | \ |
368 | \ |
204 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
369 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
205 | init (base + cur, newcnt - cur); \ |
370 | init (base + cur, newcnt - cur); \ |
206 | cur = newcnt; \ |
371 | cur = newcnt; \ |
207 | } |
372 | } |
|
|
373 | |
|
|
374 | #define array_slim(type,stem) \ |
|
|
375 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
376 | { \ |
|
|
377 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
378 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
379 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
380 | } |
|
|
381 | |
|
|
382 | #define array_free(stem, idx) \ |
|
|
383 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
208 | |
384 | |
209 | /*****************************************************************************/ |
385 | /*****************************************************************************/ |
210 | |
386 | |
211 | static void |
387 | void inline_size |
212 | anfds_init (ANFD *base, int count) |
388 | anfds_init (ANFD *base, int count) |
213 | { |
389 | { |
214 | while (count--) |
390 | while (count--) |
215 | { |
391 | { |
216 | base->head = 0; |
392 | base->head = 0; |
… | |
… | |
219 | |
395 | |
220 | ++base; |
396 | ++base; |
221 | } |
397 | } |
222 | } |
398 | } |
223 | |
399 | |
224 | static void |
400 | void noinline |
225 | event (EV_P_ W w, int events) |
401 | ev_feed_event (EV_P_ void *w, int revents) |
226 | { |
402 | { |
227 | if (w->pending) |
403 | W w_ = (W)w; |
|
|
404 | |
|
|
405 | if (expect_false (w_->pending)) |
228 | { |
406 | { |
229 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
407 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
230 | return; |
408 | return; |
231 | } |
409 | } |
232 | |
410 | |
233 | w->pending = ++pendingcnt [ABSPRI (w)]; |
411 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
234 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
412 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
235 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
413 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
236 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
414 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
237 | } |
415 | } |
238 | |
416 | |
239 | static void |
417 | static void |
240 | queue_events (EV_P_ W *events, int eventcnt, int type) |
418 | queue_events (EV_P_ W *events, int eventcnt, int type) |
241 | { |
419 | { |
242 | int i; |
420 | int i; |
243 | |
421 | |
244 | for (i = 0; i < eventcnt; ++i) |
422 | for (i = 0; i < eventcnt; ++i) |
245 | event (EV_A_ events [i], type); |
423 | ev_feed_event (EV_A_ events [i], type); |
246 | } |
424 | } |
247 | |
425 | |
248 | static void |
426 | void inline_speed |
249 | fd_event (EV_P_ int fd, int events) |
427 | fd_event (EV_P_ int fd, int revents) |
250 | { |
428 | { |
251 | ANFD *anfd = anfds + fd; |
429 | ANFD *anfd = anfds + fd; |
252 | struct ev_io *w; |
430 | ev_io *w; |
253 | |
431 | |
254 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
432 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
255 | { |
433 | { |
256 | int ev = w->events & events; |
434 | int ev = w->events & revents; |
257 | |
435 | |
258 | if (ev) |
436 | if (ev) |
259 | event (EV_A_ (W)w, ev); |
437 | ev_feed_event (EV_A_ (W)w, ev); |
260 | } |
438 | } |
|
|
439 | } |
|
|
440 | |
|
|
441 | void |
|
|
442 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
443 | { |
|
|
444 | fd_event (EV_A_ fd, revents); |
261 | } |
445 | } |
262 | |
446 | |
263 | /*****************************************************************************/ |
447 | /*****************************************************************************/ |
264 | |
448 | |
265 | static void |
449 | void inline_size |
266 | fd_reify (EV_P) |
450 | fd_reify (EV_P) |
267 | { |
451 | { |
268 | int i; |
452 | int i; |
269 | |
453 | |
270 | for (i = 0; i < fdchangecnt; ++i) |
454 | for (i = 0; i < fdchangecnt; ++i) |
271 | { |
455 | { |
272 | int fd = fdchanges [i]; |
456 | int fd = fdchanges [i]; |
273 | ANFD *anfd = anfds + fd; |
457 | ANFD *anfd = anfds + fd; |
274 | struct ev_io *w; |
458 | ev_io *w; |
275 | |
459 | |
276 | int events = 0; |
460 | int events = 0; |
277 | |
461 | |
278 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
462 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
279 | events |= w->events; |
463 | events |= w->events; |
280 | |
464 | |
|
|
465 | #if EV_SELECT_IS_WINSOCKET |
|
|
466 | if (events) |
|
|
467 | { |
|
|
468 | unsigned long argp; |
|
|
469 | anfd->handle = _get_osfhandle (fd); |
|
|
470 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
471 | } |
|
|
472 | #endif |
|
|
473 | |
281 | anfd->reify = 0; |
474 | anfd->reify = 0; |
282 | |
475 | |
283 | if (anfd->events != events) |
|
|
284 | { |
|
|
285 | method_modify (EV_A_ fd, anfd->events, events); |
476 | backend_modify (EV_A_ fd, anfd->events, events); |
286 | anfd->events = events; |
477 | anfd->events = events; |
287 | } |
|
|
288 | } |
478 | } |
289 | |
479 | |
290 | fdchangecnt = 0; |
480 | fdchangecnt = 0; |
291 | } |
481 | } |
292 | |
482 | |
293 | static void |
483 | void inline_size |
294 | fd_change (EV_P_ int fd) |
484 | fd_change (EV_P_ int fd) |
295 | { |
485 | { |
296 | if (anfds [fd].reify || fdchangecnt < 0) |
486 | if (expect_false (anfds [fd].reify)) |
297 | return; |
487 | return; |
298 | |
488 | |
299 | anfds [fd].reify = 1; |
489 | anfds [fd].reify = 1; |
300 | |
490 | |
301 | ++fdchangecnt; |
491 | ++fdchangecnt; |
302 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
492 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
303 | fdchanges [fdchangecnt - 1] = fd; |
493 | fdchanges [fdchangecnt - 1] = fd; |
304 | } |
494 | } |
305 | |
495 | |
306 | static void |
496 | void inline_speed |
307 | fd_kill (EV_P_ int fd) |
497 | fd_kill (EV_P_ int fd) |
308 | { |
498 | { |
309 | struct ev_io *w; |
499 | ev_io *w; |
310 | |
500 | |
311 | while ((w = (struct ev_io *)anfds [fd].head)) |
501 | while ((w = (ev_io *)anfds [fd].head)) |
312 | { |
502 | { |
313 | ev_io_stop (EV_A_ w); |
503 | ev_io_stop (EV_A_ w); |
314 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
504 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
315 | } |
505 | } |
|
|
506 | } |
|
|
507 | |
|
|
508 | int inline_size |
|
|
509 | fd_valid (int fd) |
|
|
510 | { |
|
|
511 | #ifdef _WIN32 |
|
|
512 | return _get_osfhandle (fd) != -1; |
|
|
513 | #else |
|
|
514 | return fcntl (fd, F_GETFD) != -1; |
|
|
515 | #endif |
316 | } |
516 | } |
317 | |
517 | |
318 | /* called on EBADF to verify fds */ |
518 | /* called on EBADF to verify fds */ |
319 | static void |
519 | static void noinline |
320 | fd_ebadf (EV_P) |
520 | fd_ebadf (EV_P) |
321 | { |
521 | { |
322 | int fd; |
522 | int fd; |
323 | |
523 | |
324 | for (fd = 0; fd < anfdmax; ++fd) |
524 | for (fd = 0; fd < anfdmax; ++fd) |
325 | if (anfds [fd].events) |
525 | if (anfds [fd].events) |
326 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
526 | if (!fd_valid (fd) == -1 && errno == EBADF) |
327 | fd_kill (EV_A_ fd); |
527 | fd_kill (EV_A_ fd); |
328 | } |
528 | } |
329 | |
529 | |
330 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
530 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
331 | static void |
531 | static void noinline |
332 | fd_enomem (EV_P) |
532 | fd_enomem (EV_P) |
333 | { |
533 | { |
334 | int fd = anfdmax; |
534 | int fd; |
335 | |
535 | |
336 | while (fd--) |
536 | for (fd = anfdmax; fd--; ) |
337 | if (anfds [fd].events) |
537 | if (anfds [fd].events) |
338 | { |
538 | { |
339 | close (fd); |
|
|
340 | fd_kill (EV_A_ fd); |
539 | fd_kill (EV_A_ fd); |
341 | return; |
540 | return; |
342 | } |
541 | } |
343 | } |
542 | } |
344 | |
543 | |
345 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
544 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
346 | static void |
545 | static void noinline |
347 | fd_rearm_all (EV_P) |
546 | fd_rearm_all (EV_P) |
348 | { |
547 | { |
349 | int fd; |
548 | int fd; |
350 | |
549 | |
351 | /* this should be highly optimised to not do anything but set a flag */ |
550 | /* this should be highly optimised to not do anything but set a flag */ |
352 | for (fd = 0; fd < anfdmax; ++fd) |
551 | for (fd = 0; fd < anfdmax; ++fd) |
353 | if (anfds [fd].events) |
552 | if (anfds [fd].events) |
354 | { |
553 | { |
355 | anfds [fd].events = 0; |
554 | anfds [fd].events = 0; |
356 | fd_change (fd); |
555 | fd_change (EV_A_ fd); |
357 | } |
556 | } |
358 | } |
557 | } |
359 | |
558 | |
360 | /*****************************************************************************/ |
559 | /*****************************************************************************/ |
361 | |
560 | |
362 | static void |
561 | void inline_speed |
363 | upheap (WT *heap, int k) |
562 | upheap (WT *heap, int k) |
364 | { |
563 | { |
365 | WT w = heap [k]; |
564 | WT w = heap [k]; |
366 | |
565 | |
367 | while (k && heap [k >> 1]->at > w->at) |
566 | while (k && heap [k >> 1]->at > w->at) |
368 | { |
567 | { |
369 | heap [k] = heap [k >> 1]; |
568 | heap [k] = heap [k >> 1]; |
370 | heap [k]->active = k + 1; |
569 | ((W)heap [k])->active = k + 1; |
371 | k >>= 1; |
570 | k >>= 1; |
372 | } |
571 | } |
373 | |
572 | |
374 | heap [k] = w; |
573 | heap [k] = w; |
375 | heap [k]->active = k + 1; |
574 | ((W)heap [k])->active = k + 1; |
376 | |
575 | |
377 | } |
576 | } |
378 | |
577 | |
379 | static void |
578 | void inline_speed |
380 | downheap (WT *heap, int N, int k) |
579 | downheap (WT *heap, int N, int k) |
381 | { |
580 | { |
382 | WT w = heap [k]; |
581 | WT w = heap [k]; |
383 | |
582 | |
384 | while (k < (N >> 1)) |
583 | while (k < (N >> 1)) |
… | |
… | |
390 | |
589 | |
391 | if (w->at <= heap [j]->at) |
590 | if (w->at <= heap [j]->at) |
392 | break; |
591 | break; |
393 | |
592 | |
394 | heap [k] = heap [j]; |
593 | heap [k] = heap [j]; |
395 | heap [k]->active = k + 1; |
594 | ((W)heap [k])->active = k + 1; |
396 | k = j; |
595 | k = j; |
397 | } |
596 | } |
398 | |
597 | |
399 | heap [k] = w; |
598 | heap [k] = w; |
400 | heap [k]->active = k + 1; |
599 | ((W)heap [k])->active = k + 1; |
|
|
600 | } |
|
|
601 | |
|
|
602 | void inline_size |
|
|
603 | adjustheap (WT *heap, int N, int k) |
|
|
604 | { |
|
|
605 | upheap (heap, k); |
|
|
606 | downheap (heap, N, k); |
401 | } |
607 | } |
402 | |
608 | |
403 | /*****************************************************************************/ |
609 | /*****************************************************************************/ |
404 | |
610 | |
405 | typedef struct |
611 | typedef struct |
406 | { |
612 | { |
407 | struct ev_watcher_list *head; |
613 | WL head; |
408 | sig_atomic_t volatile gotsig; |
614 | sig_atomic_t volatile gotsig; |
409 | } ANSIG; |
615 | } ANSIG; |
410 | |
616 | |
411 | static ANSIG *signals; |
617 | static ANSIG *signals; |
412 | static int signalmax; |
618 | static int signalmax; |
413 | |
619 | |
414 | static int sigpipe [2]; |
620 | static int sigpipe [2]; |
415 | static sig_atomic_t volatile gotsig; |
621 | static sig_atomic_t volatile gotsig; |
|
|
622 | static ev_io sigev; |
416 | |
623 | |
417 | static void |
624 | void inline_size |
418 | signals_init (ANSIG *base, int count) |
625 | signals_init (ANSIG *base, int count) |
419 | { |
626 | { |
420 | while (count--) |
627 | while (count--) |
421 | { |
628 | { |
422 | base->head = 0; |
629 | base->head = 0; |
… | |
… | |
427 | } |
634 | } |
428 | |
635 | |
429 | static void |
636 | static void |
430 | sighandler (int signum) |
637 | sighandler (int signum) |
431 | { |
638 | { |
|
|
639 | #if _WIN32 |
|
|
640 | signal (signum, sighandler); |
|
|
641 | #endif |
|
|
642 | |
432 | signals [signum - 1].gotsig = 1; |
643 | signals [signum - 1].gotsig = 1; |
433 | |
644 | |
434 | if (!gotsig) |
645 | if (!gotsig) |
435 | { |
646 | { |
436 | int old_errno = errno; |
647 | int old_errno = errno; |
… | |
… | |
438 | write (sigpipe [1], &signum, 1); |
649 | write (sigpipe [1], &signum, 1); |
439 | errno = old_errno; |
650 | errno = old_errno; |
440 | } |
651 | } |
441 | } |
652 | } |
442 | |
653 | |
|
|
654 | void noinline |
|
|
655 | ev_feed_signal_event (EV_P_ int signum) |
|
|
656 | { |
|
|
657 | WL w; |
|
|
658 | |
|
|
659 | #if EV_MULTIPLICITY |
|
|
660 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
661 | #endif |
|
|
662 | |
|
|
663 | --signum; |
|
|
664 | |
|
|
665 | if (signum < 0 || signum >= signalmax) |
|
|
666 | return; |
|
|
667 | |
|
|
668 | signals [signum].gotsig = 0; |
|
|
669 | |
|
|
670 | for (w = signals [signum].head; w; w = w->next) |
|
|
671 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
672 | } |
|
|
673 | |
443 | static void |
674 | static void |
444 | sigcb (EV_P_ struct ev_io *iow, int revents) |
675 | sigcb (EV_P_ ev_io *iow, int revents) |
445 | { |
676 | { |
446 | struct ev_watcher_list *w; |
|
|
447 | int signum; |
677 | int signum; |
448 | |
678 | |
449 | read (sigpipe [0], &revents, 1); |
679 | read (sigpipe [0], &revents, 1); |
450 | gotsig = 0; |
680 | gotsig = 0; |
451 | |
681 | |
452 | for (signum = signalmax; signum--; ) |
682 | for (signum = signalmax; signum--; ) |
453 | if (signals [signum].gotsig) |
683 | if (signals [signum].gotsig) |
454 | { |
684 | ev_feed_signal_event (EV_A_ signum + 1); |
455 | signals [signum].gotsig = 0; |
|
|
456 | |
|
|
457 | for (w = signals [signum].head; w; w = w->next) |
|
|
458 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
459 | } |
|
|
460 | } |
685 | } |
461 | |
686 | |
462 | static void |
687 | void inline_size |
|
|
688 | fd_intern (int fd) |
|
|
689 | { |
|
|
690 | #ifdef _WIN32 |
|
|
691 | int arg = 1; |
|
|
692 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
693 | #else |
|
|
694 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
695 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
696 | #endif |
|
|
697 | } |
|
|
698 | |
|
|
699 | static void noinline |
463 | siginit (EV_P) |
700 | siginit (EV_P) |
464 | { |
701 | { |
465 | #ifndef WIN32 |
702 | fd_intern (sigpipe [0]); |
466 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
703 | fd_intern (sigpipe [1]); |
467 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
468 | |
|
|
469 | /* rather than sort out wether we really need nb, set it */ |
|
|
470 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
471 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
472 | #endif |
|
|
473 | |
704 | |
474 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
705 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
475 | ev_io_start (EV_A_ &sigev); |
706 | ev_io_start (EV_A_ &sigev); |
476 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
707 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
477 | } |
708 | } |
478 | |
709 | |
479 | /*****************************************************************************/ |
710 | /*****************************************************************************/ |
480 | |
711 | |
|
|
712 | static ev_child *childs [PID_HASHSIZE]; |
|
|
713 | |
481 | #ifndef WIN32 |
714 | #ifndef _WIN32 |
|
|
715 | |
|
|
716 | static ev_signal childev; |
482 | |
717 | |
483 | #ifndef WCONTINUED |
718 | #ifndef WCONTINUED |
484 | # define WCONTINUED 0 |
719 | # define WCONTINUED 0 |
485 | #endif |
720 | #endif |
486 | |
721 | |
487 | static void |
722 | void inline_speed |
488 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
723 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
489 | { |
724 | { |
490 | struct ev_child *w; |
725 | ev_child *w; |
491 | |
726 | |
492 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
727 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
493 | if (w->pid == pid || !w->pid) |
728 | if (w->pid == pid || !w->pid) |
494 | { |
729 | { |
495 | w->priority = sw->priority; /* need to do it *now* */ |
730 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
496 | w->rpid = pid; |
731 | w->rpid = pid; |
497 | w->rstatus = status; |
732 | w->rstatus = status; |
498 | event (EV_A_ (W)w, EV_CHILD); |
733 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
499 | } |
734 | } |
500 | } |
735 | } |
501 | |
736 | |
502 | static void |
737 | static void |
503 | childcb (EV_P_ struct ev_signal *sw, int revents) |
738 | childcb (EV_P_ ev_signal *sw, int revents) |
504 | { |
739 | { |
505 | int pid, status; |
740 | int pid, status; |
506 | |
741 | |
507 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
742 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
508 | { |
743 | { |
509 | /* make sure we are called again until all childs have been reaped */ |
744 | /* make sure we are called again until all childs have been reaped */ |
|
|
745 | /* we need to do it this way so that the callback gets called before we continue */ |
510 | event (EV_A_ (W)sw, EV_SIGNAL); |
746 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
511 | |
747 | |
512 | child_reap (EV_A_ sw, pid, pid, status); |
748 | child_reap (EV_A_ sw, pid, pid, status); |
513 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
749 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
514 | } |
750 | } |
515 | } |
751 | } |
516 | |
752 | |
517 | #endif |
753 | #endif |
518 | |
754 | |
519 | /*****************************************************************************/ |
755 | /*****************************************************************************/ |
520 | |
756 | |
|
|
757 | #if EV_USE_PORT |
|
|
758 | # include "ev_port.c" |
|
|
759 | #endif |
521 | #if EV_USE_KQUEUE |
760 | #if EV_USE_KQUEUE |
522 | # include "ev_kqueue.c" |
761 | # include "ev_kqueue.c" |
523 | #endif |
762 | #endif |
524 | #if EV_USE_EPOLL |
763 | #if EV_USE_EPOLL |
525 | # include "ev_epoll.c" |
764 | # include "ev_epoll.c" |
526 | #endif |
765 | #endif |
527 | #if EV_USEV_POLL |
766 | #if EV_USE_POLL |
528 | # include "ev_poll.c" |
767 | # include "ev_poll.c" |
529 | #endif |
768 | #endif |
530 | #if EV_USE_SELECT |
769 | #if EV_USE_SELECT |
531 | # include "ev_select.c" |
770 | # include "ev_select.c" |
532 | #endif |
771 | #endif |
… | |
… | |
542 | { |
781 | { |
543 | return EV_VERSION_MINOR; |
782 | return EV_VERSION_MINOR; |
544 | } |
783 | } |
545 | |
784 | |
546 | /* return true if we are running with elevated privileges and should ignore env variables */ |
785 | /* return true if we are running with elevated privileges and should ignore env variables */ |
547 | static int |
786 | int inline_size |
548 | enable_secure (void) |
787 | enable_secure (void) |
549 | { |
788 | { |
550 | #ifdef WIN32 |
789 | #ifdef _WIN32 |
551 | return 0; |
790 | return 0; |
552 | #else |
791 | #else |
553 | return getuid () != geteuid () |
792 | return getuid () != geteuid () |
554 | || getgid () != getegid (); |
793 | || getgid () != getegid (); |
555 | #endif |
794 | #endif |
556 | } |
795 | } |
557 | |
796 | |
558 | int |
797 | unsigned int |
559 | ev_method (EV_P) |
798 | ev_supported_backends (void) |
560 | { |
799 | { |
561 | return method; |
800 | unsigned int flags = 0; |
|
|
801 | |
|
|
802 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
803 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
804 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
805 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
806 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
807 | |
|
|
808 | return flags; |
|
|
809 | } |
|
|
810 | |
|
|
811 | unsigned int |
|
|
812 | ev_recommended_backends (void) |
|
|
813 | { |
|
|
814 | unsigned int flags = ev_supported_backends (); |
|
|
815 | |
|
|
816 | #ifndef __NetBSD__ |
|
|
817 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
818 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
819 | flags &= ~EVBACKEND_KQUEUE; |
|
|
820 | #endif |
|
|
821 | #ifdef __APPLE__ |
|
|
822 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
823 | flags &= ~EVBACKEND_POLL; |
|
|
824 | #endif |
|
|
825 | |
|
|
826 | return flags; |
|
|
827 | } |
|
|
828 | |
|
|
829 | unsigned int |
|
|
830 | ev_embeddable_backends (void) |
|
|
831 | { |
|
|
832 | return EVBACKEND_EPOLL |
|
|
833 | | EVBACKEND_KQUEUE |
|
|
834 | | EVBACKEND_PORT; |
|
|
835 | } |
|
|
836 | |
|
|
837 | unsigned int |
|
|
838 | ev_backend (EV_P) |
|
|
839 | { |
|
|
840 | return backend; |
562 | } |
841 | } |
563 | |
842 | |
564 | static void |
843 | static void |
565 | loop_init (EV_P_ int methods) |
844 | loop_init (EV_P_ unsigned int flags) |
566 | { |
845 | { |
567 | if (!method) |
846 | if (!backend) |
568 | { |
847 | { |
569 | #if EV_USE_MONOTONIC |
848 | #if EV_USE_MONOTONIC |
570 | { |
849 | { |
571 | struct timespec ts; |
850 | struct timespec ts; |
572 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
851 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
573 | have_monotonic = 1; |
852 | have_monotonic = 1; |
574 | } |
853 | } |
575 | #endif |
854 | #endif |
576 | |
855 | |
577 | rt_now = ev_time (); |
856 | ev_rt_now = ev_time (); |
578 | mn_now = get_clock (); |
857 | mn_now = get_clock (); |
579 | now_floor = mn_now; |
858 | now_floor = mn_now; |
580 | rtmn_diff = rt_now - mn_now; |
859 | rtmn_diff = ev_rt_now - mn_now; |
581 | |
860 | |
582 | if (methods == EVMETHOD_AUTO) |
861 | if (!(flags & EVFLAG_NOENV) |
583 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
862 | && !enable_secure () |
|
|
863 | && getenv ("LIBEV_FLAGS")) |
584 | methods = atoi (getenv ("LIBEV_METHODS")); |
864 | flags = atoi (getenv ("LIBEV_FLAGS")); |
585 | else |
|
|
586 | methods = EVMETHOD_ANY; |
|
|
587 | |
865 | |
588 | method = 0; |
866 | if (!(flags & 0x0000ffffUL)) |
|
|
867 | flags |= ev_recommended_backends (); |
|
|
868 | |
|
|
869 | backend = 0; |
|
|
870 | #if EV_USE_PORT |
|
|
871 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
872 | #endif |
589 | #if EV_USE_KQUEUE |
873 | #if EV_USE_KQUEUE |
590 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
874 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
591 | #endif |
875 | #endif |
592 | #if EV_USE_EPOLL |
876 | #if EV_USE_EPOLL |
593 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
877 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
594 | #endif |
878 | #endif |
595 | #if EV_USEV_POLL |
879 | #if EV_USE_POLL |
596 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
880 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
597 | #endif |
881 | #endif |
598 | #if EV_USE_SELECT |
882 | #if EV_USE_SELECT |
599 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
883 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
600 | #endif |
884 | #endif |
601 | } |
|
|
602 | } |
|
|
603 | |
885 | |
604 | void |
886 | ev_init (&sigev, sigcb); |
|
|
887 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
888 | } |
|
|
889 | } |
|
|
890 | |
|
|
891 | static void |
605 | loop_destroy (EV_P) |
892 | loop_destroy (EV_P) |
606 | { |
893 | { |
|
|
894 | int i; |
|
|
895 | |
|
|
896 | #if EV_USE_PORT |
|
|
897 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
898 | #endif |
607 | #if EV_USE_KQUEUE |
899 | #if EV_USE_KQUEUE |
608 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
900 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
609 | #endif |
901 | #endif |
610 | #if EV_USE_EPOLL |
902 | #if EV_USE_EPOLL |
611 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
903 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
612 | #endif |
904 | #endif |
613 | #if EV_USEV_POLL |
905 | #if EV_USE_POLL |
614 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
906 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
615 | #endif |
907 | #endif |
616 | #if EV_USE_SELECT |
908 | #if EV_USE_SELECT |
617 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
909 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
618 | #endif |
910 | #endif |
619 | |
911 | |
620 | method = 0; |
912 | for (i = NUMPRI; i--; ) |
621 | /*TODO*/ |
913 | array_free (pending, [i]); |
622 | } |
|
|
623 | |
914 | |
624 | void |
915 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
916 | array_free (fdchange, EMPTY0); |
|
|
917 | array_free (timer, EMPTY0); |
|
|
918 | #if EV_PERIODIC_ENABLE |
|
|
919 | array_free (periodic, EMPTY0); |
|
|
920 | #endif |
|
|
921 | array_free (idle, EMPTY0); |
|
|
922 | array_free (prepare, EMPTY0); |
|
|
923 | array_free (check, EMPTY0); |
|
|
924 | |
|
|
925 | backend = 0; |
|
|
926 | } |
|
|
927 | |
|
|
928 | static void |
625 | loop_fork (EV_P) |
929 | loop_fork (EV_P) |
626 | { |
930 | { |
627 | /*TODO*/ |
931 | #if EV_USE_PORT |
|
|
932 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
933 | #endif |
|
|
934 | #if EV_USE_KQUEUE |
|
|
935 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
936 | #endif |
628 | #if EV_USE_EPOLL |
937 | #if EV_USE_EPOLL |
629 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
938 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
630 | #endif |
939 | #endif |
631 | #if EV_USE_KQUEUE |
940 | |
632 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
941 | if (ev_is_active (&sigev)) |
633 | #endif |
942 | { |
|
|
943 | /* default loop */ |
|
|
944 | |
|
|
945 | ev_ref (EV_A); |
|
|
946 | ev_io_stop (EV_A_ &sigev); |
|
|
947 | close (sigpipe [0]); |
|
|
948 | close (sigpipe [1]); |
|
|
949 | |
|
|
950 | while (pipe (sigpipe)) |
|
|
951 | syserr ("(libev) error creating pipe"); |
|
|
952 | |
|
|
953 | siginit (EV_A); |
|
|
954 | } |
|
|
955 | |
|
|
956 | postfork = 0; |
634 | } |
957 | } |
635 | |
958 | |
636 | #if EV_MULTIPLICITY |
959 | #if EV_MULTIPLICITY |
637 | struct ev_loop * |
960 | struct ev_loop * |
638 | ev_loop_new (int methods) |
961 | ev_loop_new (unsigned int flags) |
639 | { |
962 | { |
640 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
963 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
641 | |
964 | |
|
|
965 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
966 | |
642 | loop_init (EV_A_ methods); |
967 | loop_init (EV_A_ flags); |
643 | |
968 | |
644 | if (ev_methods (EV_A)) |
969 | if (ev_backend (EV_A)) |
645 | return loop; |
970 | return loop; |
646 | |
971 | |
647 | return 0; |
972 | return 0; |
648 | } |
973 | } |
649 | |
974 | |
650 | void |
975 | void |
651 | ev_loop_destroy (EV_P) |
976 | ev_loop_destroy (EV_P) |
652 | { |
977 | { |
653 | loop_destroy (EV_A); |
978 | loop_destroy (EV_A); |
654 | free (loop); |
979 | ev_free (loop); |
655 | } |
980 | } |
656 | |
981 | |
657 | void |
982 | void |
658 | ev_loop_fork (EV_P) |
983 | ev_loop_fork (EV_P) |
659 | { |
984 | { |
660 | loop_fork (EV_A); |
985 | postfork = 1; |
661 | } |
986 | } |
662 | |
987 | |
663 | #endif |
988 | #endif |
664 | |
989 | |
665 | #if EV_MULTIPLICITY |
990 | #if EV_MULTIPLICITY |
666 | struct ev_loop default_loop_struct; |
|
|
667 | static struct ev_loop *default_loop; |
|
|
668 | |
|
|
669 | struct ev_loop * |
991 | struct ev_loop * |
|
|
992 | ev_default_loop_init (unsigned int flags) |
670 | #else |
993 | #else |
671 | static int default_loop; |
|
|
672 | |
|
|
673 | int |
994 | int |
|
|
995 | ev_default_loop (unsigned int flags) |
674 | #endif |
996 | #endif |
675 | ev_default_loop (int methods) |
|
|
676 | { |
997 | { |
677 | if (sigpipe [0] == sigpipe [1]) |
998 | if (sigpipe [0] == sigpipe [1]) |
678 | if (pipe (sigpipe)) |
999 | if (pipe (sigpipe)) |
679 | return 0; |
1000 | return 0; |
680 | |
1001 | |
681 | if (!default_loop) |
1002 | if (!ev_default_loop_ptr) |
682 | { |
1003 | { |
683 | #if EV_MULTIPLICITY |
1004 | #if EV_MULTIPLICITY |
684 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1005 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
685 | #else |
1006 | #else |
686 | default_loop = 1; |
1007 | ev_default_loop_ptr = 1; |
687 | #endif |
1008 | #endif |
688 | |
1009 | |
689 | loop_init (EV_A_ methods); |
1010 | loop_init (EV_A_ flags); |
690 | |
1011 | |
691 | if (ev_method (EV_A)) |
1012 | if (ev_backend (EV_A)) |
692 | { |
1013 | { |
693 | ev_watcher_init (&sigev, sigcb); |
|
|
694 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
695 | siginit (EV_A); |
1014 | siginit (EV_A); |
696 | |
1015 | |
697 | #ifndef WIN32 |
1016 | #ifndef _WIN32 |
698 | ev_signal_init (&childev, childcb, SIGCHLD); |
1017 | ev_signal_init (&childev, childcb, SIGCHLD); |
699 | ev_set_priority (&childev, EV_MAXPRI); |
1018 | ev_set_priority (&childev, EV_MAXPRI); |
700 | ev_signal_start (EV_A_ &childev); |
1019 | ev_signal_start (EV_A_ &childev); |
701 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1020 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
702 | #endif |
1021 | #endif |
703 | } |
1022 | } |
704 | else |
1023 | else |
705 | default_loop = 0; |
1024 | ev_default_loop_ptr = 0; |
706 | } |
1025 | } |
707 | |
1026 | |
708 | return default_loop; |
1027 | return ev_default_loop_ptr; |
709 | } |
1028 | } |
710 | |
1029 | |
711 | void |
1030 | void |
712 | ev_default_destroy (void) |
1031 | ev_default_destroy (void) |
713 | { |
1032 | { |
714 | #if EV_MULTIPLICITY |
1033 | #if EV_MULTIPLICITY |
715 | struct ev_loop *loop = default_loop; |
1034 | struct ev_loop *loop = ev_default_loop_ptr; |
716 | #endif |
1035 | #endif |
717 | |
1036 | |
|
|
1037 | #ifndef _WIN32 |
718 | ev_ref (EV_A); /* child watcher */ |
1038 | ev_ref (EV_A); /* child watcher */ |
719 | ev_signal_stop (EV_A_ &childev); |
1039 | ev_signal_stop (EV_A_ &childev); |
|
|
1040 | #endif |
720 | |
1041 | |
721 | ev_ref (EV_A); /* signal watcher */ |
1042 | ev_ref (EV_A); /* signal watcher */ |
722 | ev_io_stop (EV_A_ &sigev); |
1043 | ev_io_stop (EV_A_ &sigev); |
723 | |
1044 | |
724 | close (sigpipe [0]); sigpipe [0] = 0; |
1045 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
726 | |
1047 | |
727 | loop_destroy (EV_A); |
1048 | loop_destroy (EV_A); |
728 | } |
1049 | } |
729 | |
1050 | |
730 | void |
1051 | void |
731 | ev_default_fork (EV_P) |
1052 | ev_default_fork (void) |
732 | { |
1053 | { |
733 | loop_fork (EV_A); |
1054 | #if EV_MULTIPLICITY |
|
|
1055 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1056 | #endif |
734 | |
1057 | |
735 | ev_io_stop (EV_A_ &sigev); |
1058 | if (backend) |
736 | close (sigpipe [0]); |
1059 | postfork = 1; |
737 | close (sigpipe [1]); |
|
|
738 | pipe (sigpipe); |
|
|
739 | |
|
|
740 | ev_ref (EV_A); /* signal watcher */ |
|
|
741 | siginit (EV_A); |
|
|
742 | } |
1060 | } |
743 | |
1061 | |
744 | /*****************************************************************************/ |
1062 | /*****************************************************************************/ |
745 | |
1063 | |
746 | static void |
1064 | int inline_size |
|
|
1065 | any_pending (EV_P) |
|
|
1066 | { |
|
|
1067 | int pri; |
|
|
1068 | |
|
|
1069 | for (pri = NUMPRI; pri--; ) |
|
|
1070 | if (pendingcnt [pri]) |
|
|
1071 | return 1; |
|
|
1072 | |
|
|
1073 | return 0; |
|
|
1074 | } |
|
|
1075 | |
|
|
1076 | void inline_speed |
747 | call_pending (EV_P) |
1077 | call_pending (EV_P) |
748 | { |
1078 | { |
749 | int pri; |
1079 | int pri; |
750 | |
1080 | |
751 | for (pri = NUMPRI; pri--; ) |
1081 | for (pri = NUMPRI; pri--; ) |
752 | while (pendingcnt [pri]) |
1082 | while (pendingcnt [pri]) |
753 | { |
1083 | { |
754 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1084 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
755 | |
1085 | |
756 | if (p->w) |
1086 | if (expect_true (p->w)) |
757 | { |
1087 | { |
|
|
1088 | assert (("non-pending watcher on pending list", p->w->pending)); |
|
|
1089 | |
758 | p->w->pending = 0; |
1090 | p->w->pending = 0; |
759 | p->w->cb (EV_A_ p->w, p->events); |
1091 | EV_CB_INVOKE (p->w, p->events); |
760 | } |
1092 | } |
761 | } |
1093 | } |
762 | } |
1094 | } |
763 | |
1095 | |
764 | static void |
1096 | void inline_size |
765 | timers_reify (EV_P) |
1097 | timers_reify (EV_P) |
766 | { |
1098 | { |
767 | while (timercnt && timers [0]->at <= mn_now) |
1099 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
768 | { |
1100 | { |
769 | struct ev_timer *w = timers [0]; |
1101 | ev_timer *w = timers [0]; |
|
|
1102 | |
|
|
1103 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
770 | |
1104 | |
771 | /* first reschedule or stop timer */ |
1105 | /* first reschedule or stop timer */ |
772 | if (w->repeat) |
1106 | if (w->repeat) |
773 | { |
1107 | { |
774 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1108 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1109 | |
775 | w->at = mn_now + w->repeat; |
1110 | ((WT)w)->at += w->repeat; |
|
|
1111 | if (((WT)w)->at < mn_now) |
|
|
1112 | ((WT)w)->at = mn_now; |
|
|
1113 | |
776 | downheap ((WT *)timers, timercnt, 0); |
1114 | downheap ((WT *)timers, timercnt, 0); |
777 | } |
1115 | } |
778 | else |
1116 | else |
779 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1117 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
780 | |
1118 | |
781 | event (EV_A_ (W)w, EV_TIMEOUT); |
1119 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
782 | } |
1120 | } |
783 | } |
1121 | } |
784 | |
1122 | |
785 | static void |
1123 | #if EV_PERIODIC_ENABLE |
|
|
1124 | void inline_size |
786 | periodics_reify (EV_P) |
1125 | periodics_reify (EV_P) |
787 | { |
1126 | { |
788 | while (periodiccnt && periodics [0]->at <= rt_now) |
1127 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
789 | { |
1128 | { |
790 | struct ev_periodic *w = periodics [0]; |
1129 | ev_periodic *w = periodics [0]; |
|
|
1130 | |
|
|
1131 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
791 | |
1132 | |
792 | /* first reschedule or stop timer */ |
1133 | /* first reschedule or stop timer */ |
793 | if (w->interval) |
1134 | if (w->reschedule_cb) |
794 | { |
1135 | { |
|
|
1136 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1137 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1138 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1139 | } |
|
|
1140 | else if (w->interval) |
|
|
1141 | { |
795 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1142 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
796 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1143 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
797 | downheap ((WT *)periodics, periodiccnt, 0); |
1144 | downheap ((WT *)periodics, periodiccnt, 0); |
798 | } |
1145 | } |
799 | else |
1146 | else |
800 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1147 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
801 | |
1148 | |
802 | event (EV_A_ (W)w, EV_PERIODIC); |
1149 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
803 | } |
1150 | } |
804 | } |
1151 | } |
805 | |
1152 | |
806 | static void |
1153 | static void noinline |
807 | periodics_reschedule (EV_P) |
1154 | periodics_reschedule (EV_P) |
808 | { |
1155 | { |
809 | int i; |
1156 | int i; |
810 | |
1157 | |
811 | /* adjust periodics after time jump */ |
1158 | /* adjust periodics after time jump */ |
812 | for (i = 0; i < periodiccnt; ++i) |
1159 | for (i = 0; i < periodiccnt; ++i) |
813 | { |
1160 | { |
814 | struct ev_periodic *w = periodics [i]; |
1161 | ev_periodic *w = periodics [i]; |
815 | |
1162 | |
|
|
1163 | if (w->reschedule_cb) |
|
|
1164 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
816 | if (w->interval) |
1165 | else if (w->interval) |
817 | { |
|
|
818 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1166 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
819 | |
|
|
820 | if (fabs (diff) >= 1e-4) |
|
|
821 | { |
|
|
822 | ev_periodic_stop (EV_A_ w); |
|
|
823 | ev_periodic_start (EV_A_ w); |
|
|
824 | |
|
|
825 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
826 | } |
|
|
827 | } |
|
|
828 | } |
1167 | } |
829 | } |
|
|
830 | |
1168 | |
831 | inline int |
1169 | /* now rebuild the heap */ |
|
|
1170 | for (i = periodiccnt >> 1; i--; ) |
|
|
1171 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1172 | } |
|
|
1173 | #endif |
|
|
1174 | |
|
|
1175 | int inline_size |
832 | time_update_monotonic (EV_P) |
1176 | time_update_monotonic (EV_P) |
833 | { |
1177 | { |
834 | mn_now = get_clock (); |
1178 | mn_now = get_clock (); |
835 | |
1179 | |
836 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1180 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
837 | { |
1181 | { |
838 | rt_now = rtmn_diff + mn_now; |
1182 | ev_rt_now = rtmn_diff + mn_now; |
839 | return 0; |
1183 | return 0; |
840 | } |
1184 | } |
841 | else |
1185 | else |
842 | { |
1186 | { |
843 | now_floor = mn_now; |
1187 | now_floor = mn_now; |
844 | rt_now = ev_time (); |
1188 | ev_rt_now = ev_time (); |
845 | return 1; |
1189 | return 1; |
846 | } |
1190 | } |
847 | } |
1191 | } |
848 | |
1192 | |
849 | static void |
1193 | void inline_size |
850 | time_update (EV_P) |
1194 | time_update (EV_P) |
851 | { |
1195 | { |
852 | int i; |
1196 | int i; |
853 | |
1197 | |
854 | #if EV_USE_MONOTONIC |
1198 | #if EV_USE_MONOTONIC |
… | |
… | |
856 | { |
1200 | { |
857 | if (time_update_monotonic (EV_A)) |
1201 | if (time_update_monotonic (EV_A)) |
858 | { |
1202 | { |
859 | ev_tstamp odiff = rtmn_diff; |
1203 | ev_tstamp odiff = rtmn_diff; |
860 | |
1204 | |
861 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1205 | /* loop a few times, before making important decisions. |
|
|
1206 | * on the choice of "4": one iteration isn't enough, |
|
|
1207 | * in case we get preempted during the calls to |
|
|
1208 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1209 | * to succeed in that case, though. and looping a few more times |
|
|
1210 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1211 | * in the unlikely event of getting preempted here. |
|
|
1212 | */ |
|
|
1213 | for (i = 4; --i; ) |
862 | { |
1214 | { |
863 | rtmn_diff = rt_now - mn_now; |
1215 | rtmn_diff = ev_rt_now - mn_now; |
864 | |
1216 | |
865 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1217 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
866 | return; /* all is well */ |
1218 | return; /* all is well */ |
867 | |
1219 | |
868 | rt_now = ev_time (); |
1220 | ev_rt_now = ev_time (); |
869 | mn_now = get_clock (); |
1221 | mn_now = get_clock (); |
870 | now_floor = mn_now; |
1222 | now_floor = mn_now; |
871 | } |
1223 | } |
872 | |
1224 | |
|
|
1225 | # if EV_PERIODIC_ENABLE |
873 | periodics_reschedule (EV_A); |
1226 | periodics_reschedule (EV_A); |
|
|
1227 | # endif |
874 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1228 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
875 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1229 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
876 | } |
1230 | } |
877 | } |
1231 | } |
878 | else |
1232 | else |
879 | #endif |
1233 | #endif |
880 | { |
1234 | { |
881 | rt_now = ev_time (); |
1235 | ev_rt_now = ev_time (); |
882 | |
1236 | |
883 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1237 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
884 | { |
1238 | { |
|
|
1239 | #if EV_PERIODIC_ENABLE |
885 | periodics_reschedule (EV_A); |
1240 | periodics_reschedule (EV_A); |
|
|
1241 | #endif |
886 | |
1242 | |
887 | /* adjust timers. this is easy, as the offset is the same for all */ |
1243 | /* adjust timers. this is easy, as the offset is the same for all */ |
888 | for (i = 0; i < timercnt; ++i) |
1244 | for (i = 0; i < timercnt; ++i) |
889 | timers [i]->at += rt_now - mn_now; |
1245 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
890 | } |
1246 | } |
891 | |
1247 | |
892 | mn_now = rt_now; |
1248 | mn_now = ev_rt_now; |
893 | } |
1249 | } |
894 | } |
1250 | } |
895 | |
1251 | |
896 | void |
1252 | void |
897 | ev_ref (EV_P) |
1253 | ev_ref (EV_P) |
… | |
… | |
908 | static int loop_done; |
1264 | static int loop_done; |
909 | |
1265 | |
910 | void |
1266 | void |
911 | ev_loop (EV_P_ int flags) |
1267 | ev_loop (EV_P_ int flags) |
912 | { |
1268 | { |
913 | double block; |
|
|
914 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1269 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1270 | ? EVUNLOOP_ONE |
|
|
1271 | : EVUNLOOP_CANCEL; |
915 | |
1272 | |
916 | do |
1273 | while (activecnt) |
917 | { |
1274 | { |
918 | /* queue check watchers (and execute them) */ |
1275 | /* queue check watchers (and execute them) */ |
919 | if (expect_false (preparecnt)) |
1276 | if (expect_false (preparecnt)) |
920 | { |
1277 | { |
921 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1278 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
922 | call_pending (EV_A); |
1279 | call_pending (EV_A); |
923 | } |
1280 | } |
924 | |
1281 | |
|
|
1282 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1283 | if (expect_false (postfork)) |
|
|
1284 | loop_fork (EV_A); |
|
|
1285 | |
925 | /* update fd-related kernel structures */ |
1286 | /* update fd-related kernel structures */ |
926 | fd_reify (EV_A); |
1287 | fd_reify (EV_A); |
927 | |
1288 | |
928 | /* calculate blocking time */ |
1289 | /* calculate blocking time */ |
|
|
1290 | { |
|
|
1291 | double block; |
929 | |
1292 | |
930 | /* we only need this for !monotonic clockor timers, but as we basically |
1293 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
931 | always have timers, we just calculate it always */ |
1294 | block = 0.; /* do not block at all */ |
|
|
1295 | else |
|
|
1296 | { |
|
|
1297 | /* update time to cancel out callback processing overhead */ |
932 | #if EV_USE_MONOTONIC |
1298 | #if EV_USE_MONOTONIC |
933 | if (expect_true (have_monotonic)) |
1299 | if (expect_true (have_monotonic)) |
934 | time_update_monotonic (EV_A); |
1300 | time_update_monotonic (EV_A); |
935 | else |
1301 | else |
936 | #endif |
1302 | #endif |
937 | { |
1303 | { |
938 | rt_now = ev_time (); |
1304 | ev_rt_now = ev_time (); |
939 | mn_now = rt_now; |
1305 | mn_now = ev_rt_now; |
940 | } |
1306 | } |
941 | |
1307 | |
942 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
943 | block = 0.; |
|
|
944 | else |
|
|
945 | { |
|
|
946 | block = MAX_BLOCKTIME; |
1308 | block = MAX_BLOCKTIME; |
947 | |
1309 | |
948 | if (timercnt) |
1310 | if (timercnt) |
949 | { |
1311 | { |
950 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1312 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
951 | if (block > to) block = to; |
1313 | if (block > to) block = to; |
952 | } |
1314 | } |
953 | |
1315 | |
|
|
1316 | #if EV_PERIODIC_ENABLE |
954 | if (periodiccnt) |
1317 | if (periodiccnt) |
955 | { |
1318 | { |
956 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1319 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
957 | if (block > to) block = to; |
1320 | if (block > to) block = to; |
958 | } |
1321 | } |
|
|
1322 | #endif |
959 | |
1323 | |
960 | if (block < 0.) block = 0.; |
1324 | if (expect_false (block < 0.)) block = 0.; |
961 | } |
1325 | } |
962 | |
1326 | |
963 | method_poll (EV_A_ block); |
1327 | backend_poll (EV_A_ block); |
|
|
1328 | } |
964 | |
1329 | |
965 | /* update rt_now, do magic */ |
1330 | /* update ev_rt_now, do magic */ |
966 | time_update (EV_A); |
1331 | time_update (EV_A); |
967 | |
1332 | |
968 | /* queue pending timers and reschedule them */ |
1333 | /* queue pending timers and reschedule them */ |
969 | timers_reify (EV_A); /* relative timers called last */ |
1334 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1335 | #if EV_PERIODIC_ENABLE |
970 | periodics_reify (EV_A); /* absolute timers called first */ |
1336 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1337 | #endif |
971 | |
1338 | |
972 | /* queue idle watchers unless io or timers are pending */ |
1339 | /* queue idle watchers unless other events are pending */ |
973 | if (!pendingcnt) |
1340 | if (idlecnt && !any_pending (EV_A)) |
974 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1341 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
975 | |
1342 | |
976 | /* queue check watchers, to be executed first */ |
1343 | /* queue check watchers, to be executed first */ |
977 | if (checkcnt) |
1344 | if (expect_false (checkcnt)) |
978 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1345 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
979 | |
1346 | |
980 | call_pending (EV_A); |
1347 | call_pending (EV_A); |
981 | } |
|
|
982 | while (activecnt && !loop_done); |
|
|
983 | |
1348 | |
984 | if (loop_done != 2) |
1349 | if (expect_false (loop_done)) |
985 | loop_done = 0; |
1350 | break; |
|
|
1351 | } |
|
|
1352 | |
|
|
1353 | if (loop_done == EVUNLOOP_ONE) |
|
|
1354 | loop_done = EVUNLOOP_CANCEL; |
986 | } |
1355 | } |
987 | |
1356 | |
988 | void |
1357 | void |
989 | ev_unloop (EV_P_ int how) |
1358 | ev_unloop (EV_P_ int how) |
990 | { |
1359 | { |
991 | loop_done = how; |
1360 | loop_done = how; |
992 | } |
1361 | } |
993 | |
1362 | |
994 | /*****************************************************************************/ |
1363 | /*****************************************************************************/ |
995 | |
1364 | |
996 | inline void |
1365 | void inline_size |
997 | wlist_add (WL *head, WL elem) |
1366 | wlist_add (WL *head, WL elem) |
998 | { |
1367 | { |
999 | elem->next = *head; |
1368 | elem->next = *head; |
1000 | *head = elem; |
1369 | *head = elem; |
1001 | } |
1370 | } |
1002 | |
1371 | |
1003 | inline void |
1372 | void inline_size |
1004 | wlist_del (WL *head, WL elem) |
1373 | wlist_del (WL *head, WL elem) |
1005 | { |
1374 | { |
1006 | while (*head) |
1375 | while (*head) |
1007 | { |
1376 | { |
1008 | if (*head == elem) |
1377 | if (*head == elem) |
… | |
… | |
1013 | |
1382 | |
1014 | head = &(*head)->next; |
1383 | head = &(*head)->next; |
1015 | } |
1384 | } |
1016 | } |
1385 | } |
1017 | |
1386 | |
1018 | inline void |
1387 | void inline_speed |
1019 | ev_clear_pending (EV_P_ W w) |
1388 | ev_clear_pending (EV_P_ W w) |
1020 | { |
1389 | { |
1021 | if (w->pending) |
1390 | if (w->pending) |
1022 | { |
1391 | { |
1023 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1392 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1024 | w->pending = 0; |
1393 | w->pending = 0; |
1025 | } |
1394 | } |
1026 | } |
1395 | } |
1027 | |
1396 | |
1028 | inline void |
1397 | void inline_speed |
1029 | ev_start (EV_P_ W w, int active) |
1398 | ev_start (EV_P_ W w, int active) |
1030 | { |
1399 | { |
1031 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1400 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1032 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1401 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1033 | |
1402 | |
1034 | w->active = active; |
1403 | w->active = active; |
1035 | ev_ref (EV_A); |
1404 | ev_ref (EV_A); |
1036 | } |
1405 | } |
1037 | |
1406 | |
1038 | inline void |
1407 | void inline_size |
1039 | ev_stop (EV_P_ W w) |
1408 | ev_stop (EV_P_ W w) |
1040 | { |
1409 | { |
1041 | ev_unref (EV_A); |
1410 | ev_unref (EV_A); |
1042 | w->active = 0; |
1411 | w->active = 0; |
1043 | } |
1412 | } |
1044 | |
1413 | |
1045 | /*****************************************************************************/ |
1414 | /*****************************************************************************/ |
1046 | |
1415 | |
1047 | void |
1416 | void |
1048 | ev_io_start (EV_P_ struct ev_io *w) |
1417 | ev_io_start (EV_P_ ev_io *w) |
1049 | { |
1418 | { |
1050 | int fd = w->fd; |
1419 | int fd = w->fd; |
1051 | |
1420 | |
1052 | if (ev_is_active (w)) |
1421 | if (expect_false (ev_is_active (w))) |
1053 | return; |
1422 | return; |
1054 | |
1423 | |
1055 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1424 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1056 | |
1425 | |
1057 | ev_start (EV_A_ (W)w, 1); |
1426 | ev_start (EV_A_ (W)w, 1); |
1058 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1427 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1059 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1428 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1060 | |
1429 | |
1061 | fd_change (EV_A_ fd); |
1430 | fd_change (EV_A_ fd); |
1062 | } |
1431 | } |
1063 | |
1432 | |
1064 | void |
1433 | void |
1065 | ev_io_stop (EV_P_ struct ev_io *w) |
1434 | ev_io_stop (EV_P_ ev_io *w) |
1066 | { |
1435 | { |
1067 | ev_clear_pending (EV_A_ (W)w); |
1436 | ev_clear_pending (EV_A_ (W)w); |
1068 | if (!ev_is_active (w)) |
1437 | if (expect_false (!ev_is_active (w))) |
1069 | return; |
1438 | return; |
|
|
1439 | |
|
|
1440 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1070 | |
1441 | |
1071 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1442 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1072 | ev_stop (EV_A_ (W)w); |
1443 | ev_stop (EV_A_ (W)w); |
1073 | |
1444 | |
1074 | fd_change (EV_A_ w->fd); |
1445 | fd_change (EV_A_ w->fd); |
1075 | } |
1446 | } |
1076 | |
1447 | |
1077 | void |
1448 | void |
1078 | ev_timer_start (EV_P_ struct ev_timer *w) |
1449 | ev_timer_start (EV_P_ ev_timer *w) |
1079 | { |
1450 | { |
1080 | if (ev_is_active (w)) |
1451 | if (expect_false (ev_is_active (w))) |
1081 | return; |
1452 | return; |
1082 | |
1453 | |
1083 | w->at += mn_now; |
1454 | ((WT)w)->at += mn_now; |
1084 | |
1455 | |
1085 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1456 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1086 | |
1457 | |
1087 | ev_start (EV_A_ (W)w, ++timercnt); |
1458 | ev_start (EV_A_ (W)w, ++timercnt); |
1088 | array_needsize (timers, timermax, timercnt, ); |
1459 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1089 | timers [timercnt - 1] = w; |
1460 | timers [timercnt - 1] = w; |
1090 | upheap ((WT *)timers, timercnt - 1); |
1461 | upheap ((WT *)timers, timercnt - 1); |
1091 | } |
|
|
1092 | |
1462 | |
|
|
1463 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1464 | } |
|
|
1465 | |
1093 | void |
1466 | void |
1094 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1467 | ev_timer_stop (EV_P_ ev_timer *w) |
1095 | { |
1468 | { |
1096 | ev_clear_pending (EV_A_ (W)w); |
1469 | ev_clear_pending (EV_A_ (W)w); |
1097 | if (!ev_is_active (w)) |
1470 | if (expect_false (!ev_is_active (w))) |
1098 | return; |
1471 | return; |
1099 | |
1472 | |
|
|
1473 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1474 | |
1100 | if (w->active < timercnt--) |
1475 | if (expect_true (((W)w)->active < timercnt--)) |
1101 | { |
1476 | { |
1102 | timers [w->active - 1] = timers [timercnt]; |
1477 | timers [((W)w)->active - 1] = timers [timercnt]; |
1103 | downheap ((WT *)timers, timercnt, w->active - 1); |
1478 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1104 | } |
1479 | } |
1105 | |
1480 | |
1106 | w->at = w->repeat; |
1481 | ((WT)w)->at -= mn_now; |
1107 | |
1482 | |
1108 | ev_stop (EV_A_ (W)w); |
1483 | ev_stop (EV_A_ (W)w); |
1109 | } |
1484 | } |
1110 | |
1485 | |
1111 | void |
1486 | void |
1112 | ev_timer_again (EV_P_ struct ev_timer *w) |
1487 | ev_timer_again (EV_P_ ev_timer *w) |
1113 | { |
1488 | { |
1114 | if (ev_is_active (w)) |
1489 | if (ev_is_active (w)) |
1115 | { |
1490 | { |
1116 | if (w->repeat) |
1491 | if (w->repeat) |
1117 | { |
1492 | { |
1118 | w->at = mn_now + w->repeat; |
1493 | ((WT)w)->at = mn_now + w->repeat; |
1119 | downheap ((WT *)timers, timercnt, w->active - 1); |
1494 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1120 | } |
1495 | } |
1121 | else |
1496 | else |
1122 | ev_timer_stop (EV_A_ w); |
1497 | ev_timer_stop (EV_A_ w); |
1123 | } |
1498 | } |
1124 | else if (w->repeat) |
1499 | else if (w->repeat) |
|
|
1500 | { |
|
|
1501 | w->at = w->repeat; |
1125 | ev_timer_start (EV_A_ w); |
1502 | ev_timer_start (EV_A_ w); |
|
|
1503 | } |
1126 | } |
1504 | } |
1127 | |
1505 | |
|
|
1506 | #if EV_PERIODIC_ENABLE |
1128 | void |
1507 | void |
1129 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1508 | ev_periodic_start (EV_P_ ev_periodic *w) |
1130 | { |
1509 | { |
1131 | if (ev_is_active (w)) |
1510 | if (expect_false (ev_is_active (w))) |
1132 | return; |
1511 | return; |
1133 | |
1512 | |
|
|
1513 | if (w->reschedule_cb) |
|
|
1514 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1515 | else if (w->interval) |
|
|
1516 | { |
1134 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1517 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1135 | |
|
|
1136 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1518 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1137 | if (w->interval) |
|
|
1138 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1519 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1520 | } |
1139 | |
1521 | |
1140 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1522 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1141 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1523 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1142 | periodics [periodiccnt - 1] = w; |
1524 | periodics [periodiccnt - 1] = w; |
1143 | upheap ((WT *)periodics, periodiccnt - 1); |
1525 | upheap ((WT *)periodics, periodiccnt - 1); |
1144 | } |
|
|
1145 | |
1526 | |
|
|
1527 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1528 | } |
|
|
1529 | |
1146 | void |
1530 | void |
1147 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1531 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1148 | { |
1532 | { |
1149 | ev_clear_pending (EV_A_ (W)w); |
1533 | ev_clear_pending (EV_A_ (W)w); |
1150 | if (!ev_is_active (w)) |
1534 | if (expect_false (!ev_is_active (w))) |
1151 | return; |
1535 | return; |
1152 | |
1536 | |
|
|
1537 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1538 | |
1153 | if (w->active < periodiccnt--) |
1539 | if (expect_true (((W)w)->active < periodiccnt--)) |
1154 | { |
1540 | { |
1155 | periodics [w->active - 1] = periodics [periodiccnt]; |
1541 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1156 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1542 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1157 | } |
1543 | } |
1158 | |
1544 | |
1159 | ev_stop (EV_A_ (W)w); |
1545 | ev_stop (EV_A_ (W)w); |
1160 | } |
1546 | } |
1161 | |
1547 | |
1162 | void |
1548 | void |
|
|
1549 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1550 | { |
|
|
1551 | /* TODO: use adjustheap and recalculation */ |
|
|
1552 | ev_periodic_stop (EV_A_ w); |
|
|
1553 | ev_periodic_start (EV_A_ w); |
|
|
1554 | } |
|
|
1555 | #endif |
|
|
1556 | |
|
|
1557 | void |
1163 | ev_idle_start (EV_P_ struct ev_idle *w) |
1558 | ev_idle_start (EV_P_ ev_idle *w) |
1164 | { |
1559 | { |
1165 | if (ev_is_active (w)) |
1560 | if (expect_false (ev_is_active (w))) |
1166 | return; |
1561 | return; |
1167 | |
1562 | |
1168 | ev_start (EV_A_ (W)w, ++idlecnt); |
1563 | ev_start (EV_A_ (W)w, ++idlecnt); |
1169 | array_needsize (idles, idlemax, idlecnt, ); |
1564 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1170 | idles [idlecnt - 1] = w; |
1565 | idles [idlecnt - 1] = w; |
1171 | } |
1566 | } |
1172 | |
1567 | |
1173 | void |
1568 | void |
1174 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1569 | ev_idle_stop (EV_P_ ev_idle *w) |
1175 | { |
1570 | { |
1176 | ev_clear_pending (EV_A_ (W)w); |
1571 | ev_clear_pending (EV_A_ (W)w); |
1177 | if (ev_is_active (w)) |
1572 | if (expect_false (!ev_is_active (w))) |
1178 | return; |
1573 | return; |
1179 | |
1574 | |
|
|
1575 | { |
|
|
1576 | int active = ((W)w)->active; |
1180 | idles [w->active - 1] = idles [--idlecnt]; |
1577 | idles [active - 1] = idles [--idlecnt]; |
|
|
1578 | ((W)idles [active - 1])->active = active; |
|
|
1579 | } |
|
|
1580 | |
1181 | ev_stop (EV_A_ (W)w); |
1581 | ev_stop (EV_A_ (W)w); |
1182 | } |
1582 | } |
1183 | |
1583 | |
1184 | void |
1584 | void |
1185 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1585 | ev_prepare_start (EV_P_ ev_prepare *w) |
1186 | { |
1586 | { |
1187 | if (ev_is_active (w)) |
1587 | if (expect_false (ev_is_active (w))) |
1188 | return; |
1588 | return; |
1189 | |
1589 | |
1190 | ev_start (EV_A_ (W)w, ++preparecnt); |
1590 | ev_start (EV_A_ (W)w, ++preparecnt); |
1191 | array_needsize (prepares, preparemax, preparecnt, ); |
1591 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1192 | prepares [preparecnt - 1] = w; |
1592 | prepares [preparecnt - 1] = w; |
1193 | } |
1593 | } |
1194 | |
1594 | |
1195 | void |
1595 | void |
1196 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1596 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1197 | { |
1597 | { |
1198 | ev_clear_pending (EV_A_ (W)w); |
1598 | ev_clear_pending (EV_A_ (W)w); |
1199 | if (ev_is_active (w)) |
1599 | if (expect_false (!ev_is_active (w))) |
1200 | return; |
1600 | return; |
1201 | |
1601 | |
|
|
1602 | { |
|
|
1603 | int active = ((W)w)->active; |
1202 | prepares [w->active - 1] = prepares [--preparecnt]; |
1604 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
1605 | ((W)prepares [active - 1])->active = active; |
|
|
1606 | } |
|
|
1607 | |
1203 | ev_stop (EV_A_ (W)w); |
1608 | ev_stop (EV_A_ (W)w); |
1204 | } |
1609 | } |
1205 | |
1610 | |
1206 | void |
1611 | void |
1207 | ev_check_start (EV_P_ struct ev_check *w) |
1612 | ev_check_start (EV_P_ ev_check *w) |
1208 | { |
1613 | { |
1209 | if (ev_is_active (w)) |
1614 | if (expect_false (ev_is_active (w))) |
1210 | return; |
1615 | return; |
1211 | |
1616 | |
1212 | ev_start (EV_A_ (W)w, ++checkcnt); |
1617 | ev_start (EV_A_ (W)w, ++checkcnt); |
1213 | array_needsize (checks, checkmax, checkcnt, ); |
1618 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1214 | checks [checkcnt - 1] = w; |
1619 | checks [checkcnt - 1] = w; |
1215 | } |
1620 | } |
1216 | |
1621 | |
1217 | void |
1622 | void |
1218 | ev_check_stop (EV_P_ struct ev_check *w) |
1623 | ev_check_stop (EV_P_ ev_check *w) |
1219 | { |
1624 | { |
1220 | ev_clear_pending (EV_A_ (W)w); |
1625 | ev_clear_pending (EV_A_ (W)w); |
1221 | if (ev_is_active (w)) |
1626 | if (expect_false (!ev_is_active (w))) |
1222 | return; |
1627 | return; |
1223 | |
1628 | |
|
|
1629 | { |
|
|
1630 | int active = ((W)w)->active; |
1224 | checks [w->active - 1] = checks [--checkcnt]; |
1631 | checks [active - 1] = checks [--checkcnt]; |
|
|
1632 | ((W)checks [active - 1])->active = active; |
|
|
1633 | } |
|
|
1634 | |
1225 | ev_stop (EV_A_ (W)w); |
1635 | ev_stop (EV_A_ (W)w); |
1226 | } |
1636 | } |
1227 | |
1637 | |
1228 | #ifndef SA_RESTART |
1638 | #ifndef SA_RESTART |
1229 | # define SA_RESTART 0 |
1639 | # define SA_RESTART 0 |
1230 | #endif |
1640 | #endif |
1231 | |
1641 | |
1232 | void |
1642 | void |
1233 | ev_signal_start (EV_P_ struct ev_signal *w) |
1643 | ev_signal_start (EV_P_ ev_signal *w) |
1234 | { |
1644 | { |
1235 | #if EV_MULTIPLICITY |
1645 | #if EV_MULTIPLICITY |
1236 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1646 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1237 | #endif |
1647 | #endif |
1238 | if (ev_is_active (w)) |
1648 | if (expect_false (ev_is_active (w))) |
1239 | return; |
1649 | return; |
1240 | |
1650 | |
1241 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1651 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1242 | |
1652 | |
1243 | ev_start (EV_A_ (W)w, 1); |
1653 | ev_start (EV_A_ (W)w, 1); |
1244 | array_needsize (signals, signalmax, w->signum, signals_init); |
1654 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1245 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1655 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1246 | |
1656 | |
1247 | if (!w->next) |
1657 | if (!((WL)w)->next) |
1248 | { |
1658 | { |
|
|
1659 | #if _WIN32 |
|
|
1660 | signal (w->signum, sighandler); |
|
|
1661 | #else |
1249 | struct sigaction sa; |
1662 | struct sigaction sa; |
1250 | sa.sa_handler = sighandler; |
1663 | sa.sa_handler = sighandler; |
1251 | sigfillset (&sa.sa_mask); |
1664 | sigfillset (&sa.sa_mask); |
1252 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1665 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1253 | sigaction (w->signum, &sa, 0); |
1666 | sigaction (w->signum, &sa, 0); |
|
|
1667 | #endif |
1254 | } |
1668 | } |
1255 | } |
1669 | } |
1256 | |
1670 | |
1257 | void |
1671 | void |
1258 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1672 | ev_signal_stop (EV_P_ ev_signal *w) |
1259 | { |
1673 | { |
1260 | ev_clear_pending (EV_A_ (W)w); |
1674 | ev_clear_pending (EV_A_ (W)w); |
1261 | if (!ev_is_active (w)) |
1675 | if (expect_false (!ev_is_active (w))) |
1262 | return; |
1676 | return; |
1263 | |
1677 | |
1264 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1678 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1265 | ev_stop (EV_A_ (W)w); |
1679 | ev_stop (EV_A_ (W)w); |
1266 | |
1680 | |
1267 | if (!signals [w->signum - 1].head) |
1681 | if (!signals [w->signum - 1].head) |
1268 | signal (w->signum, SIG_DFL); |
1682 | signal (w->signum, SIG_DFL); |
1269 | } |
1683 | } |
1270 | |
1684 | |
1271 | void |
1685 | void |
1272 | ev_child_start (EV_P_ struct ev_child *w) |
1686 | ev_child_start (EV_P_ ev_child *w) |
1273 | { |
1687 | { |
1274 | #if EV_MULTIPLICITY |
1688 | #if EV_MULTIPLICITY |
1275 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1689 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1276 | #endif |
1690 | #endif |
1277 | if (ev_is_active (w)) |
1691 | if (expect_false (ev_is_active (w))) |
1278 | return; |
1692 | return; |
1279 | |
1693 | |
1280 | ev_start (EV_A_ (W)w, 1); |
1694 | ev_start (EV_A_ (W)w, 1); |
1281 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1695 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1282 | } |
1696 | } |
1283 | |
1697 | |
1284 | void |
1698 | void |
1285 | ev_child_stop (EV_P_ struct ev_child *w) |
1699 | ev_child_stop (EV_P_ ev_child *w) |
1286 | { |
1700 | { |
1287 | ev_clear_pending (EV_A_ (W)w); |
1701 | ev_clear_pending (EV_A_ (W)w); |
1288 | if (ev_is_active (w)) |
1702 | if (expect_false (!ev_is_active (w))) |
1289 | return; |
1703 | return; |
1290 | |
1704 | |
1291 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1705 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1292 | ev_stop (EV_A_ (W)w); |
1706 | ev_stop (EV_A_ (W)w); |
1293 | } |
1707 | } |
1294 | |
1708 | |
|
|
1709 | #if EV_EMBED_ENABLE |
|
|
1710 | void noinline |
|
|
1711 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
1712 | { |
|
|
1713 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
1714 | } |
|
|
1715 | |
|
|
1716 | static void |
|
|
1717 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
1718 | { |
|
|
1719 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
1720 | |
|
|
1721 | if (ev_cb (w)) |
|
|
1722 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
1723 | else |
|
|
1724 | ev_embed_sweep (loop, w); |
|
|
1725 | } |
|
|
1726 | |
|
|
1727 | void |
|
|
1728 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
1729 | { |
|
|
1730 | if (expect_false (ev_is_active (w))) |
|
|
1731 | return; |
|
|
1732 | |
|
|
1733 | { |
|
|
1734 | struct ev_loop *loop = w->loop; |
|
|
1735 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
1736 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1737 | } |
|
|
1738 | |
|
|
1739 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1740 | ev_io_start (EV_A_ &w->io); |
|
|
1741 | |
|
|
1742 | ev_start (EV_A_ (W)w, 1); |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | void |
|
|
1746 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
1747 | { |
|
|
1748 | ev_clear_pending (EV_A_ (W)w); |
|
|
1749 | if (expect_false (!ev_is_active (w))) |
|
|
1750 | return; |
|
|
1751 | |
|
|
1752 | ev_io_stop (EV_A_ &w->io); |
|
|
1753 | |
|
|
1754 | ev_stop (EV_A_ (W)w); |
|
|
1755 | } |
|
|
1756 | #endif |
|
|
1757 | |
|
|
1758 | #if EV_STAT_ENABLE |
|
|
1759 | |
|
|
1760 | # ifdef _WIN32 |
|
|
1761 | # define lstat(a,b) stat(a,b) |
|
|
1762 | # endif |
|
|
1763 | |
|
|
1764 | void |
|
|
1765 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1766 | { |
|
|
1767 | if (lstat (w->path, &w->attr) < 0) |
|
|
1768 | w->attr.st_nlink = 0; |
|
|
1769 | else if (!w->attr.st_nlink) |
|
|
1770 | w->attr.st_nlink = 1; |
|
|
1771 | } |
|
|
1772 | |
|
|
1773 | static void |
|
|
1774 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1775 | { |
|
|
1776 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1777 | |
|
|
1778 | /* we copy this here each the time so that */ |
|
|
1779 | /* prev has the old value when the callback gets invoked */ |
|
|
1780 | w->prev = w->attr; |
|
|
1781 | ev_stat_stat (EV_A_ w); |
|
|
1782 | |
|
|
1783 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1784 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1785 | } |
|
|
1786 | |
|
|
1787 | void |
|
|
1788 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1789 | { |
|
|
1790 | if (expect_false (ev_is_active (w))) |
|
|
1791 | return; |
|
|
1792 | |
|
|
1793 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1794 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1795 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1796 | |
|
|
1797 | ev_stat_stat (EV_A_ w); |
|
|
1798 | |
|
|
1799 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1800 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1801 | ev_timer_start (EV_A_ &w->timer); |
|
|
1802 | |
|
|
1803 | ev_start (EV_A_ (W)w, 1); |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | void |
|
|
1807 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1808 | { |
|
|
1809 | ev_clear_pending (EV_A_ (W)w); |
|
|
1810 | if (expect_false (!ev_is_active (w))) |
|
|
1811 | return; |
|
|
1812 | |
|
|
1813 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1814 | |
|
|
1815 | ev_stop (EV_A_ (W)w); |
|
|
1816 | } |
|
|
1817 | #endif |
|
|
1818 | |
1295 | /*****************************************************************************/ |
1819 | /*****************************************************************************/ |
1296 | |
1820 | |
1297 | struct ev_once |
1821 | struct ev_once |
1298 | { |
1822 | { |
1299 | struct ev_io io; |
1823 | ev_io io; |
1300 | struct ev_timer to; |
1824 | ev_timer to; |
1301 | void (*cb)(int revents, void *arg); |
1825 | void (*cb)(int revents, void *arg); |
1302 | void *arg; |
1826 | void *arg; |
1303 | }; |
1827 | }; |
1304 | |
1828 | |
1305 | static void |
1829 | static void |
… | |
… | |
1308 | void (*cb)(int revents, void *arg) = once->cb; |
1832 | void (*cb)(int revents, void *arg) = once->cb; |
1309 | void *arg = once->arg; |
1833 | void *arg = once->arg; |
1310 | |
1834 | |
1311 | ev_io_stop (EV_A_ &once->io); |
1835 | ev_io_stop (EV_A_ &once->io); |
1312 | ev_timer_stop (EV_A_ &once->to); |
1836 | ev_timer_stop (EV_A_ &once->to); |
1313 | free (once); |
1837 | ev_free (once); |
1314 | |
1838 | |
1315 | cb (revents, arg); |
1839 | cb (revents, arg); |
1316 | } |
1840 | } |
1317 | |
1841 | |
1318 | static void |
1842 | static void |
1319 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1843 | once_cb_io (EV_P_ ev_io *w, int revents) |
1320 | { |
1844 | { |
1321 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1845 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1322 | } |
1846 | } |
1323 | |
1847 | |
1324 | static void |
1848 | static void |
1325 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1849 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1326 | { |
1850 | { |
1327 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1851 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1328 | } |
1852 | } |
1329 | |
1853 | |
1330 | void |
1854 | void |
1331 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1855 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1332 | { |
1856 | { |
1333 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1857 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1334 | |
1858 | |
1335 | if (!once) |
1859 | if (expect_false (!once)) |
|
|
1860 | { |
1336 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1861 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1337 | else |
1862 | return; |
1338 | { |
1863 | } |
|
|
1864 | |
1339 | once->cb = cb; |
1865 | once->cb = cb; |
1340 | once->arg = arg; |
1866 | once->arg = arg; |
1341 | |
1867 | |
1342 | ev_watcher_init (&once->io, once_cb_io); |
1868 | ev_init (&once->io, once_cb_io); |
1343 | if (fd >= 0) |
1869 | if (fd >= 0) |
1344 | { |
1870 | { |
1345 | ev_io_set (&once->io, fd, events); |
1871 | ev_io_set (&once->io, fd, events); |
1346 | ev_io_start (EV_A_ &once->io); |
1872 | ev_io_start (EV_A_ &once->io); |
1347 | } |
1873 | } |
1348 | |
1874 | |
1349 | ev_watcher_init (&once->to, once_cb_to); |
1875 | ev_init (&once->to, once_cb_to); |
1350 | if (timeout >= 0.) |
1876 | if (timeout >= 0.) |
1351 | { |
1877 | { |
1352 | ev_timer_set (&once->to, timeout, 0.); |
1878 | ev_timer_set (&once->to, timeout, 0.); |
1353 | ev_timer_start (EV_A_ &once->to); |
1879 | ev_timer_start (EV_A_ &once->to); |
1354 | } |
|
|
1355 | } |
1880 | } |
1356 | } |
1881 | } |
1357 | |
1882 | |
|
|
1883 | #ifdef __cplusplus |
|
|
1884 | } |
|
|
1885 | #endif |
|
|
1886 | |