… | |
… | |
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 |
|
|
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_USE_POLL |
141 | #ifndef EV_USE_POLL |
64 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
142 | # ifdef _WIN32 |
|
|
143 | # define EV_USE_POLL 0 |
|
|
144 | # else |
|
|
145 | # define EV_USE_POLL 1 |
|
|
146 | # endif |
65 | #endif |
147 | #endif |
66 | |
148 | |
67 | #ifndef EV_USE_EPOLL |
149 | #ifndef EV_USE_EPOLL |
68 | # define EV_USE_EPOLL 0 |
150 | # define EV_USE_EPOLL 0 |
69 | #endif |
151 | #endif |
70 | |
152 | |
71 | #ifndef EV_USE_KQUEUE |
153 | #ifndef EV_USE_KQUEUE |
72 | # define EV_USE_KQUEUE 0 |
154 | # define EV_USE_KQUEUE 0 |
73 | #endif |
155 | #endif |
74 | |
156 | |
75 | #ifndef EV_USE_REALTIME |
157 | #ifndef EV_USE_PORT |
76 | # define EV_USE_REALTIME 1 |
158 | # define EV_USE_PORT 0 |
|
|
159 | #endif |
|
|
160 | |
|
|
161 | #ifndef EV_PID_HASHSIZE |
|
|
162 | # if EV_MINIMAL |
|
|
163 | # define EV_PID_HASHSIZE 1 |
|
|
164 | # else |
|
|
165 | # define EV_PID_HASHSIZE 16 |
|
|
166 | # endif |
77 | #endif |
167 | #endif |
78 | |
168 | |
79 | /**/ |
169 | /**/ |
80 | |
170 | |
81 | #ifndef CLOCK_MONOTONIC |
171 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
86 | #ifndef CLOCK_REALTIME |
176 | #ifndef CLOCK_REALTIME |
87 | # undef EV_USE_REALTIME |
177 | # undef EV_USE_REALTIME |
88 | # define EV_USE_REALTIME 0 |
178 | # define EV_USE_REALTIME 0 |
89 | #endif |
179 | #endif |
90 | |
180 | |
|
|
181 | #if EV_SELECT_IS_WINSOCKET |
|
|
182 | # include <winsock.h> |
|
|
183 | #endif |
|
|
184 | |
91 | /**/ |
185 | /**/ |
92 | |
186 | |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
187 | #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) */ |
188 | #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 */ |
|
|
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
189 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
97 | |
190 | |
|
|
191 | #ifdef EV_H |
|
|
192 | # include EV_H |
|
|
193 | #else |
98 | #include "ev.h" |
194 | # include "ev.h" |
|
|
195 | #endif |
99 | |
196 | |
100 | #if __GNUC__ >= 3 |
197 | #if __GNUC__ >= 3 |
101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
198 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
199 | # define inline_size static inline /* inline for codesize */ |
|
|
200 | # if EV_MINIMAL |
102 | # define inline inline |
201 | # define noinline __attribute__ ((noinline)) |
|
|
202 | # define inline_speed static noinline |
|
|
203 | # else |
|
|
204 | # define noinline |
|
|
205 | # define inline_speed static inline |
|
|
206 | # endif |
103 | #else |
207 | #else |
104 | # define expect(expr,value) (expr) |
208 | # define expect(expr,value) (expr) |
|
|
209 | # define inline_speed static |
105 | # define inline static |
210 | # define inline_size static |
|
|
211 | # define noinline |
106 | #endif |
212 | #endif |
107 | |
213 | |
108 | #define expect_false(expr) expect ((expr) != 0, 0) |
214 | #define expect_false(expr) expect ((expr) != 0, 0) |
109 | #define expect_true(expr) expect ((expr) != 0, 1) |
215 | #define expect_true(expr) expect ((expr) != 0, 1) |
110 | |
216 | |
111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
217 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
218 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
113 | |
219 | |
|
|
220 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
221 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
222 | |
114 | typedef struct ev_watcher *W; |
223 | typedef ev_watcher *W; |
115 | typedef struct ev_watcher_list *WL; |
224 | typedef ev_watcher_list *WL; |
116 | typedef struct ev_watcher_time *WT; |
225 | typedef ev_watcher_time *WT; |
117 | |
226 | |
118 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
227 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
119 | |
228 | |
|
|
229 | #ifdef _WIN32 |
|
|
230 | # include "ev_win32.c" |
|
|
231 | #endif |
|
|
232 | |
120 | /*****************************************************************************/ |
233 | /*****************************************************************************/ |
121 | |
234 | |
|
|
235 | static void (*syserr_cb)(const char *msg); |
|
|
236 | |
|
|
237 | void |
|
|
238 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
239 | { |
|
|
240 | syserr_cb = cb; |
|
|
241 | } |
|
|
242 | |
|
|
243 | static void noinline |
|
|
244 | syserr (const char *msg) |
|
|
245 | { |
|
|
246 | if (!msg) |
|
|
247 | msg = "(libev) system error"; |
|
|
248 | |
|
|
249 | if (syserr_cb) |
|
|
250 | syserr_cb (msg); |
|
|
251 | else |
|
|
252 | { |
|
|
253 | perror (msg); |
|
|
254 | abort (); |
|
|
255 | } |
|
|
256 | } |
|
|
257 | |
|
|
258 | static void *(*alloc)(void *ptr, size_t size) = realloc; |
|
|
259 | |
|
|
260 | void |
|
|
261 | ev_set_allocator (void *(*cb)(void *ptr, size_t size)) |
|
|
262 | { |
|
|
263 | alloc = cb; |
|
|
264 | } |
|
|
265 | |
|
|
266 | inline_speed void * |
|
|
267 | ev_realloc (void *ptr, size_t size) |
|
|
268 | { |
|
|
269 | ptr = alloc (ptr, size); |
|
|
270 | |
|
|
271 | if (!ptr && size) |
|
|
272 | { |
|
|
273 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size); |
|
|
274 | abort (); |
|
|
275 | } |
|
|
276 | |
|
|
277 | return ptr; |
|
|
278 | } |
|
|
279 | |
|
|
280 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
281 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
282 | |
|
|
283 | /*****************************************************************************/ |
|
|
284 | |
122 | typedef struct |
285 | typedef struct |
123 | { |
286 | { |
124 | struct ev_watcher_list *head; |
287 | WL head; |
125 | unsigned char events; |
288 | unsigned char events; |
126 | unsigned char reify; |
289 | unsigned char reify; |
|
|
290 | #if EV_SELECT_IS_WINSOCKET |
|
|
291 | SOCKET handle; |
|
|
292 | #endif |
127 | } ANFD; |
293 | } ANFD; |
128 | |
294 | |
129 | typedef struct |
295 | typedef struct |
130 | { |
296 | { |
131 | W w; |
297 | W w; |
132 | int events; |
298 | int events; |
133 | } ANPENDING; |
299 | } ANPENDING; |
134 | |
300 | |
135 | #if EV_MULTIPLICITY |
301 | #if EV_MULTIPLICITY |
136 | |
302 | |
137 | struct ev_loop |
303 | struct ev_loop |
138 | { |
304 | { |
|
|
305 | ev_tstamp ev_rt_now; |
|
|
306 | #define ev_rt_now ((loop)->ev_rt_now) |
139 | # define VAR(name,decl) decl; |
307 | #define VAR(name,decl) decl; |
140 | # include "ev_vars.h" |
308 | #include "ev_vars.h" |
141 | }; |
|
|
142 | # undef VAR |
309 | #undef VAR |
|
|
310 | }; |
143 | # include "ev_wrap.h" |
311 | #include "ev_wrap.h" |
|
|
312 | |
|
|
313 | static struct ev_loop default_loop_struct; |
|
|
314 | struct ev_loop *ev_default_loop_ptr; |
144 | |
315 | |
145 | #else |
316 | #else |
146 | |
317 | |
|
|
318 | ev_tstamp ev_rt_now; |
147 | # define VAR(name,decl) static decl; |
319 | #define VAR(name,decl) static decl; |
148 | # include "ev_vars.h" |
320 | #include "ev_vars.h" |
149 | # undef VAR |
321 | #undef VAR |
|
|
322 | |
|
|
323 | static int ev_default_loop_ptr; |
150 | |
324 | |
151 | #endif |
325 | #endif |
152 | |
326 | |
153 | /*****************************************************************************/ |
327 | /*****************************************************************************/ |
154 | |
328 | |
155 | inline ev_tstamp |
329 | ev_tstamp |
156 | ev_time (void) |
330 | ev_time (void) |
157 | { |
331 | { |
158 | #if EV_USE_REALTIME |
332 | #if EV_USE_REALTIME |
159 | struct timespec ts; |
333 | struct timespec ts; |
160 | clock_gettime (CLOCK_REALTIME, &ts); |
334 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
164 | gettimeofday (&tv, 0); |
338 | gettimeofday (&tv, 0); |
165 | return tv.tv_sec + tv.tv_usec * 1e-6; |
339 | return tv.tv_sec + tv.tv_usec * 1e-6; |
166 | #endif |
340 | #endif |
167 | } |
341 | } |
168 | |
342 | |
169 | inline ev_tstamp |
343 | ev_tstamp inline_size |
170 | get_clock (void) |
344 | get_clock (void) |
171 | { |
345 | { |
172 | #if EV_USE_MONOTONIC |
346 | #if EV_USE_MONOTONIC |
173 | if (expect_true (have_monotonic)) |
347 | if (expect_true (have_monotonic)) |
174 | { |
348 | { |
… | |
… | |
179 | #endif |
353 | #endif |
180 | |
354 | |
181 | return ev_time (); |
355 | return ev_time (); |
182 | } |
356 | } |
183 | |
357 | |
|
|
358 | #if EV_MULTIPLICITY |
184 | ev_tstamp |
359 | ev_tstamp |
185 | ev_now (EV_P) |
360 | ev_now (EV_P) |
186 | { |
361 | { |
187 | return rt_now; |
362 | return ev_rt_now; |
188 | } |
363 | } |
|
|
364 | #endif |
189 | |
365 | |
190 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
366 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
191 | |
367 | |
192 | #define array_needsize(base,cur,cnt,init) \ |
368 | #define array_needsize(type,base,cur,cnt,init) \ |
193 | if (expect_false ((cnt) > cur)) \ |
369 | if (expect_false ((cnt) > cur)) \ |
194 | { \ |
370 | { \ |
195 | int newcnt = cur; \ |
371 | int newcnt = cur; \ |
196 | do \ |
372 | do \ |
197 | { \ |
373 | { \ |
198 | newcnt = array_roundsize (base, newcnt << 1); \ |
374 | newcnt = array_roundsize (type, newcnt << 1); \ |
199 | } \ |
375 | } \ |
200 | while ((cnt) > newcnt); \ |
376 | while ((cnt) > newcnt); \ |
201 | \ |
377 | \ |
202 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
378 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
203 | init (base + cur, newcnt - cur); \ |
379 | init (base + cur, newcnt - cur); \ |
204 | cur = newcnt; \ |
380 | cur = newcnt; \ |
205 | } |
381 | } |
|
|
382 | |
|
|
383 | #define array_slim(type,stem) \ |
|
|
384 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
385 | { \ |
|
|
386 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
387 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
388 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
389 | } |
|
|
390 | |
|
|
391 | #define array_free(stem, idx) \ |
|
|
392 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
206 | |
393 | |
207 | /*****************************************************************************/ |
394 | /*****************************************************************************/ |
208 | |
395 | |
209 | static void |
396 | void noinline |
|
|
397 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
398 | { |
|
|
399 | W w_ = (W)w; |
|
|
400 | |
|
|
401 | if (expect_false (w_->pending)) |
|
|
402 | { |
|
|
403 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
404 | return; |
|
|
405 | } |
|
|
406 | |
|
|
407 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
408 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
409 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
410 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
411 | } |
|
|
412 | |
|
|
413 | void inline_size |
|
|
414 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
415 | { |
|
|
416 | int i; |
|
|
417 | |
|
|
418 | for (i = 0; i < eventcnt; ++i) |
|
|
419 | ev_feed_event (EV_A_ events [i], type); |
|
|
420 | } |
|
|
421 | |
|
|
422 | /*****************************************************************************/ |
|
|
423 | |
|
|
424 | void inline_size |
210 | anfds_init (ANFD *base, int count) |
425 | anfds_init (ANFD *base, int count) |
211 | { |
426 | { |
212 | while (count--) |
427 | while (count--) |
213 | { |
428 | { |
214 | base->head = 0; |
429 | base->head = 0; |
… | |
… | |
217 | |
432 | |
218 | ++base; |
433 | ++base; |
219 | } |
434 | } |
220 | } |
435 | } |
221 | |
436 | |
222 | static void |
437 | void inline_speed |
223 | event (EV_P_ W w, int events) |
|
|
224 | { |
|
|
225 | if (w->pending) |
|
|
226 | { |
|
|
227 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
228 | return; |
|
|
229 | } |
|
|
230 | |
|
|
231 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
232 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
233 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
234 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
235 | } |
|
|
236 | |
|
|
237 | static void |
|
|
238 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
239 | { |
|
|
240 | int i; |
|
|
241 | |
|
|
242 | for (i = 0; i < eventcnt; ++i) |
|
|
243 | event (EV_A_ events [i], type); |
|
|
244 | } |
|
|
245 | |
|
|
246 | static void |
|
|
247 | fd_event (EV_P_ int fd, int events) |
438 | fd_event (EV_P_ int fd, int revents) |
248 | { |
439 | { |
249 | ANFD *anfd = anfds + fd; |
440 | ANFD *anfd = anfds + fd; |
250 | struct ev_io *w; |
441 | ev_io *w; |
251 | |
442 | |
252 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
443 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
253 | { |
444 | { |
254 | int ev = w->events & events; |
445 | int ev = w->events & revents; |
255 | |
446 | |
256 | if (ev) |
447 | if (ev) |
257 | event (EV_A_ (W)w, ev); |
448 | ev_feed_event (EV_A_ (W)w, ev); |
258 | } |
449 | } |
259 | } |
450 | } |
260 | |
451 | |
261 | /*****************************************************************************/ |
452 | void |
|
|
453 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
454 | { |
|
|
455 | fd_event (EV_A_ fd, revents); |
|
|
456 | } |
262 | |
457 | |
263 | static void |
458 | void inline_size |
264 | fd_reify (EV_P) |
459 | fd_reify (EV_P) |
265 | { |
460 | { |
266 | int i; |
461 | int i; |
267 | |
462 | |
268 | for (i = 0; i < fdchangecnt; ++i) |
463 | for (i = 0; i < fdchangecnt; ++i) |
269 | { |
464 | { |
270 | int fd = fdchanges [i]; |
465 | int fd = fdchanges [i]; |
271 | ANFD *anfd = anfds + fd; |
466 | ANFD *anfd = anfds + fd; |
272 | struct ev_io *w; |
467 | ev_io *w; |
273 | |
468 | |
274 | int events = 0; |
469 | int events = 0; |
275 | |
470 | |
276 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
471 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
277 | events |= w->events; |
472 | events |= w->events; |
278 | |
473 | |
|
|
474 | #if EV_SELECT_IS_WINSOCKET |
|
|
475 | if (events) |
|
|
476 | { |
|
|
477 | unsigned long argp; |
|
|
478 | anfd->handle = _get_osfhandle (fd); |
|
|
479 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
480 | } |
|
|
481 | #endif |
|
|
482 | |
279 | anfd->reify = 0; |
483 | anfd->reify = 0; |
280 | |
484 | |
281 | if (anfd->events != events) |
|
|
282 | { |
|
|
283 | method_modify (EV_A_ fd, anfd->events, events); |
485 | backend_modify (EV_A_ fd, anfd->events, events); |
284 | anfd->events = events; |
486 | anfd->events = events; |
285 | } |
|
|
286 | } |
487 | } |
287 | |
488 | |
288 | fdchangecnt = 0; |
489 | fdchangecnt = 0; |
289 | } |
490 | } |
290 | |
491 | |
291 | static void |
492 | void inline_size |
292 | fd_change (EV_P_ int fd) |
493 | fd_change (EV_P_ int fd) |
293 | { |
494 | { |
294 | if (anfds [fd].reify || fdchangecnt < 0) |
495 | if (expect_false (anfds [fd].reify)) |
295 | return; |
496 | return; |
296 | |
497 | |
297 | anfds [fd].reify = 1; |
498 | anfds [fd].reify = 1; |
298 | |
499 | |
299 | ++fdchangecnt; |
500 | ++fdchangecnt; |
300 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
501 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
301 | fdchanges [fdchangecnt - 1] = fd; |
502 | fdchanges [fdchangecnt - 1] = fd; |
302 | } |
503 | } |
303 | |
504 | |
304 | static void |
505 | void inline_speed |
305 | fd_kill (EV_P_ int fd) |
506 | fd_kill (EV_P_ int fd) |
306 | { |
507 | { |
307 | struct ev_io *w; |
508 | ev_io *w; |
308 | |
509 | |
309 | while ((w = (struct ev_io *)anfds [fd].head)) |
510 | while ((w = (ev_io *)anfds [fd].head)) |
310 | { |
511 | { |
311 | ev_io_stop (EV_A_ w); |
512 | ev_io_stop (EV_A_ w); |
312 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
513 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
313 | } |
514 | } |
|
|
515 | } |
|
|
516 | |
|
|
517 | int inline_size |
|
|
518 | fd_valid (int fd) |
|
|
519 | { |
|
|
520 | #ifdef _WIN32 |
|
|
521 | return _get_osfhandle (fd) != -1; |
|
|
522 | #else |
|
|
523 | return fcntl (fd, F_GETFD) != -1; |
|
|
524 | #endif |
314 | } |
525 | } |
315 | |
526 | |
316 | /* called on EBADF to verify fds */ |
527 | /* called on EBADF to verify fds */ |
317 | static void |
528 | static void noinline |
318 | fd_ebadf (EV_P) |
529 | fd_ebadf (EV_P) |
319 | { |
530 | { |
320 | int fd; |
531 | int fd; |
321 | |
532 | |
322 | for (fd = 0; fd < anfdmax; ++fd) |
533 | for (fd = 0; fd < anfdmax; ++fd) |
323 | if (anfds [fd].events) |
534 | if (anfds [fd].events) |
324 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
535 | if (!fd_valid (fd) == -1 && errno == EBADF) |
325 | fd_kill (EV_A_ fd); |
536 | fd_kill (EV_A_ fd); |
326 | } |
537 | } |
327 | |
538 | |
328 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
539 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
329 | static void |
540 | static void noinline |
330 | fd_enomem (EV_P) |
541 | fd_enomem (EV_P) |
331 | { |
542 | { |
332 | int fd = anfdmax; |
543 | int fd; |
333 | |
544 | |
334 | while (fd--) |
545 | for (fd = anfdmax; fd--; ) |
335 | if (anfds [fd].events) |
546 | if (anfds [fd].events) |
336 | { |
547 | { |
337 | close (fd); |
|
|
338 | fd_kill (EV_A_ fd); |
548 | fd_kill (EV_A_ fd); |
339 | return; |
549 | return; |
340 | } |
550 | } |
341 | } |
551 | } |
342 | |
552 | |
343 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
553 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
344 | static void |
554 | static void noinline |
345 | fd_rearm_all (EV_P) |
555 | fd_rearm_all (EV_P) |
346 | { |
556 | { |
347 | int fd; |
557 | int fd; |
348 | |
558 | |
349 | /* this should be highly optimised to not do anything but set a flag */ |
559 | /* this should be highly optimised to not do anything but set a flag */ |
350 | for (fd = 0; fd < anfdmax; ++fd) |
560 | for (fd = 0; fd < anfdmax; ++fd) |
351 | if (anfds [fd].events) |
561 | if (anfds [fd].events) |
352 | { |
562 | { |
353 | anfds [fd].events = 0; |
563 | anfds [fd].events = 0; |
354 | fd_change (fd); |
564 | fd_change (EV_A_ fd); |
355 | } |
565 | } |
356 | } |
566 | } |
357 | |
567 | |
358 | /*****************************************************************************/ |
568 | /*****************************************************************************/ |
359 | |
569 | |
360 | static void |
570 | void inline_speed |
361 | upheap (WT *heap, int k) |
571 | upheap (WT *heap, int k) |
362 | { |
572 | { |
363 | WT w = heap [k]; |
573 | WT w = heap [k]; |
364 | |
574 | |
365 | while (k && heap [k >> 1]->at > w->at) |
575 | while (k && heap [k >> 1]->at > w->at) |
366 | { |
576 | { |
367 | heap [k] = heap [k >> 1]; |
577 | heap [k] = heap [k >> 1]; |
368 | heap [k]->active = k + 1; |
578 | ((W)heap [k])->active = k + 1; |
369 | k >>= 1; |
579 | k >>= 1; |
370 | } |
580 | } |
371 | |
581 | |
372 | heap [k] = w; |
582 | heap [k] = w; |
373 | heap [k]->active = k + 1; |
583 | ((W)heap [k])->active = k + 1; |
374 | |
584 | |
375 | } |
585 | } |
376 | |
586 | |
377 | static void |
587 | void inline_speed |
378 | downheap (WT *heap, int N, int k) |
588 | downheap (WT *heap, int N, int k) |
379 | { |
589 | { |
380 | WT w = heap [k]; |
590 | WT w = heap [k]; |
381 | |
591 | |
382 | while (k < (N >> 1)) |
592 | while (k < (N >> 1)) |
… | |
… | |
388 | |
598 | |
389 | if (w->at <= heap [j]->at) |
599 | if (w->at <= heap [j]->at) |
390 | break; |
600 | break; |
391 | |
601 | |
392 | heap [k] = heap [j]; |
602 | heap [k] = heap [j]; |
393 | heap [k]->active = k + 1; |
603 | ((W)heap [k])->active = k + 1; |
394 | k = j; |
604 | k = j; |
395 | } |
605 | } |
396 | |
606 | |
397 | heap [k] = w; |
607 | heap [k] = w; |
398 | heap [k]->active = k + 1; |
608 | ((W)heap [k])->active = k + 1; |
|
|
609 | } |
|
|
610 | |
|
|
611 | void inline_size |
|
|
612 | adjustheap (WT *heap, int N, int k) |
|
|
613 | { |
|
|
614 | upheap (heap, k); |
|
|
615 | downheap (heap, N, k); |
399 | } |
616 | } |
400 | |
617 | |
401 | /*****************************************************************************/ |
618 | /*****************************************************************************/ |
402 | |
619 | |
403 | typedef struct |
620 | typedef struct |
404 | { |
621 | { |
405 | struct ev_watcher_list *head; |
622 | WL head; |
406 | sig_atomic_t volatile gotsig; |
623 | sig_atomic_t volatile gotsig; |
407 | } ANSIG; |
624 | } ANSIG; |
408 | |
625 | |
409 | static ANSIG *signals; |
626 | static ANSIG *signals; |
410 | static int signalmax; |
627 | static int signalmax; |
411 | |
628 | |
412 | static int sigpipe [2]; |
629 | static int sigpipe [2]; |
413 | static sig_atomic_t volatile gotsig; |
630 | static sig_atomic_t volatile gotsig; |
414 | static struct ev_io sigev; |
631 | static ev_io sigev; |
415 | |
632 | |
416 | static void |
633 | void inline_size |
417 | signals_init (ANSIG *base, int count) |
634 | signals_init (ANSIG *base, int count) |
418 | { |
635 | { |
419 | while (count--) |
636 | while (count--) |
420 | { |
637 | { |
421 | base->head = 0; |
638 | base->head = 0; |
… | |
… | |
426 | } |
643 | } |
427 | |
644 | |
428 | static void |
645 | static void |
429 | sighandler (int signum) |
646 | sighandler (int signum) |
430 | { |
647 | { |
|
|
648 | #if _WIN32 |
|
|
649 | signal (signum, sighandler); |
|
|
650 | #endif |
|
|
651 | |
431 | signals [signum - 1].gotsig = 1; |
652 | signals [signum - 1].gotsig = 1; |
432 | |
653 | |
433 | if (!gotsig) |
654 | if (!gotsig) |
434 | { |
655 | { |
435 | int old_errno = errno; |
656 | int old_errno = errno; |
… | |
… | |
437 | write (sigpipe [1], &signum, 1); |
658 | write (sigpipe [1], &signum, 1); |
438 | errno = old_errno; |
659 | errno = old_errno; |
439 | } |
660 | } |
440 | } |
661 | } |
441 | |
662 | |
|
|
663 | void noinline |
|
|
664 | ev_feed_signal_event (EV_P_ int signum) |
|
|
665 | { |
|
|
666 | WL w; |
|
|
667 | |
|
|
668 | #if EV_MULTIPLICITY |
|
|
669 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
670 | #endif |
|
|
671 | |
|
|
672 | --signum; |
|
|
673 | |
|
|
674 | if (signum < 0 || signum >= signalmax) |
|
|
675 | return; |
|
|
676 | |
|
|
677 | signals [signum].gotsig = 0; |
|
|
678 | |
|
|
679 | for (w = signals [signum].head; w; w = w->next) |
|
|
680 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
681 | } |
|
|
682 | |
442 | static void |
683 | static void |
443 | sigcb (EV_P_ struct ev_io *iow, int revents) |
684 | sigcb (EV_P_ ev_io *iow, int revents) |
444 | { |
685 | { |
445 | struct ev_watcher_list *w; |
|
|
446 | int signum; |
686 | int signum; |
447 | |
687 | |
448 | read (sigpipe [0], &revents, 1); |
688 | read (sigpipe [0], &revents, 1); |
449 | gotsig = 0; |
689 | gotsig = 0; |
450 | |
690 | |
451 | for (signum = signalmax; signum--; ) |
691 | for (signum = signalmax; signum--; ) |
452 | if (signals [signum].gotsig) |
692 | if (signals [signum].gotsig) |
453 | { |
693 | ev_feed_signal_event (EV_A_ signum + 1); |
454 | signals [signum].gotsig = 0; |
|
|
455 | |
|
|
456 | for (w = signals [signum].head; w; w = w->next) |
|
|
457 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
458 | } |
|
|
459 | } |
694 | } |
460 | |
695 | |
461 | static void |
696 | void inline_size |
|
|
697 | fd_intern (int fd) |
|
|
698 | { |
|
|
699 | #ifdef _WIN32 |
|
|
700 | int arg = 1; |
|
|
701 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
702 | #else |
|
|
703 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
704 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
705 | #endif |
|
|
706 | } |
|
|
707 | |
|
|
708 | static void noinline |
462 | siginit (EV_P) |
709 | siginit (EV_P) |
463 | { |
710 | { |
464 | #ifndef WIN32 |
711 | fd_intern (sigpipe [0]); |
465 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
712 | fd_intern (sigpipe [1]); |
466 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
467 | |
|
|
468 | /* rather than sort out wether we really need nb, set it */ |
|
|
469 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
470 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
471 | #endif |
|
|
472 | |
713 | |
473 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
714 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
474 | ev_io_start (EV_A_ &sigev); |
715 | ev_io_start (EV_A_ &sigev); |
475 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
716 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
476 | } |
717 | } |
477 | |
718 | |
478 | /*****************************************************************************/ |
719 | /*****************************************************************************/ |
479 | |
720 | |
|
|
721 | static ev_child *childs [EV_PID_HASHSIZE]; |
|
|
722 | |
480 | #ifndef WIN32 |
723 | #ifndef _WIN32 |
481 | |
724 | |
482 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
483 | static struct ev_signal childev; |
725 | static ev_signal childev; |
|
|
726 | |
|
|
727 | void inline_speed |
|
|
728 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
729 | { |
|
|
730 | ev_child *w; |
|
|
731 | |
|
|
732 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
733 | if (w->pid == pid || !w->pid) |
|
|
734 | { |
|
|
735 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
736 | w->rpid = pid; |
|
|
737 | w->rstatus = status; |
|
|
738 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
739 | } |
|
|
740 | } |
484 | |
741 | |
485 | #ifndef WCONTINUED |
742 | #ifndef WCONTINUED |
486 | # define WCONTINUED 0 |
743 | # define WCONTINUED 0 |
487 | #endif |
744 | #endif |
488 | |
745 | |
489 | static void |
746 | static void |
490 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
491 | { |
|
|
492 | struct ev_child *w; |
|
|
493 | |
|
|
494 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
495 | if (w->pid == pid || !w->pid) |
|
|
496 | { |
|
|
497 | w->priority = sw->priority; /* need to do it *now* */ |
|
|
498 | w->rpid = pid; |
|
|
499 | w->rstatus = status; |
|
|
500 | event (EV_A_ (W)w, EV_CHILD); |
|
|
501 | } |
|
|
502 | } |
|
|
503 | |
|
|
504 | static void |
|
|
505 | childcb (EV_P_ struct ev_signal *sw, int revents) |
747 | childcb (EV_P_ ev_signal *sw, int revents) |
506 | { |
748 | { |
507 | int pid, status; |
749 | int pid, status; |
508 | |
750 | |
|
|
751 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
509 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
752 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
510 | { |
753 | if (!WCONTINUED |
|
|
754 | || errno != EINVAL |
|
|
755 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
756 | return; |
|
|
757 | |
511 | /* make sure we are called again until all childs have been reaped */ |
758 | /* make sure we are called again until all childs have been reaped */ |
|
|
759 | /* we need to do it this way so that the callback gets called before we continue */ |
512 | event (EV_A_ (W)sw, EV_SIGNAL); |
760 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
513 | |
761 | |
514 | child_reap (EV_A_ sw, pid, pid, status); |
762 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
763 | if (EV_PID_HASHSIZE > 1) |
515 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
764 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
516 | } |
|
|
517 | } |
765 | } |
518 | |
766 | |
519 | #endif |
767 | #endif |
520 | |
768 | |
521 | /*****************************************************************************/ |
769 | /*****************************************************************************/ |
522 | |
770 | |
|
|
771 | #if EV_USE_PORT |
|
|
772 | # include "ev_port.c" |
|
|
773 | #endif |
523 | #if EV_USE_KQUEUE |
774 | #if EV_USE_KQUEUE |
524 | # include "ev_kqueue.c" |
775 | # include "ev_kqueue.c" |
525 | #endif |
776 | #endif |
526 | #if EV_USE_EPOLL |
777 | #if EV_USE_EPOLL |
527 | # include "ev_epoll.c" |
778 | # include "ev_epoll.c" |
… | |
… | |
544 | { |
795 | { |
545 | return EV_VERSION_MINOR; |
796 | return EV_VERSION_MINOR; |
546 | } |
797 | } |
547 | |
798 | |
548 | /* return true if we are running with elevated privileges and should ignore env variables */ |
799 | /* return true if we are running with elevated privileges and should ignore env variables */ |
549 | static int |
800 | int inline_size |
550 | enable_secure (void) |
801 | enable_secure (void) |
551 | { |
802 | { |
552 | #ifdef WIN32 |
803 | #ifdef _WIN32 |
553 | return 0; |
804 | return 0; |
554 | #else |
805 | #else |
555 | return getuid () != geteuid () |
806 | return getuid () != geteuid () |
556 | || getgid () != getegid (); |
807 | || getgid () != getegid (); |
557 | #endif |
808 | #endif |
558 | } |
809 | } |
559 | |
810 | |
560 | int |
811 | unsigned int |
561 | ev_method (EV_P) |
812 | ev_supported_backends (void) |
562 | { |
813 | { |
563 | return method; |
814 | unsigned int flags = 0; |
564 | } |
|
|
565 | |
815 | |
566 | static void |
816 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
567 | loop_init (EV_P_ int methods) |
817 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
818 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
819 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
820 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
821 | |
|
|
822 | return flags; |
|
|
823 | } |
|
|
824 | |
|
|
825 | unsigned int |
|
|
826 | ev_recommended_backends (void) |
568 | { |
827 | { |
569 | if (!method) |
828 | unsigned int flags = ev_supported_backends (); |
|
|
829 | |
|
|
830 | #ifndef __NetBSD__ |
|
|
831 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
832 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
833 | flags &= ~EVBACKEND_KQUEUE; |
|
|
834 | #endif |
|
|
835 | #ifdef __APPLE__ |
|
|
836 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
837 | flags &= ~EVBACKEND_POLL; |
|
|
838 | #endif |
|
|
839 | |
|
|
840 | return flags; |
|
|
841 | } |
|
|
842 | |
|
|
843 | unsigned int |
|
|
844 | ev_embeddable_backends (void) |
|
|
845 | { |
|
|
846 | return EVBACKEND_EPOLL |
|
|
847 | | EVBACKEND_KQUEUE |
|
|
848 | | EVBACKEND_PORT; |
|
|
849 | } |
|
|
850 | |
|
|
851 | unsigned int |
|
|
852 | ev_backend (EV_P) |
|
|
853 | { |
|
|
854 | return backend; |
|
|
855 | } |
|
|
856 | |
|
|
857 | static void noinline |
|
|
858 | loop_init (EV_P_ unsigned int flags) |
|
|
859 | { |
|
|
860 | if (!backend) |
570 | { |
861 | { |
571 | #if EV_USE_MONOTONIC |
862 | #if EV_USE_MONOTONIC |
572 | { |
863 | { |
573 | struct timespec ts; |
864 | struct timespec ts; |
574 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
865 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
575 | have_monotonic = 1; |
866 | have_monotonic = 1; |
576 | } |
867 | } |
577 | #endif |
868 | #endif |
578 | |
869 | |
579 | rt_now = ev_time (); |
870 | ev_rt_now = ev_time (); |
580 | mn_now = get_clock (); |
871 | mn_now = get_clock (); |
581 | now_floor = mn_now; |
872 | now_floor = mn_now; |
582 | rtmn_diff = rt_now - mn_now; |
873 | rtmn_diff = ev_rt_now - mn_now; |
583 | |
874 | |
584 | if (methods == EVMETHOD_AUTO) |
875 | if (!(flags & EVFLAG_NOENV) |
585 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
876 | && !enable_secure () |
|
|
877 | && getenv ("LIBEV_FLAGS")) |
586 | methods = atoi (getenv ("LIBEV_METHODS")); |
878 | flags = atoi (getenv ("LIBEV_FLAGS")); |
587 | else |
|
|
588 | methods = EVMETHOD_ANY; |
|
|
589 | |
879 | |
590 | method = 0; |
880 | if (!(flags & 0x0000ffffUL)) |
|
|
881 | flags |= ev_recommended_backends (); |
|
|
882 | |
|
|
883 | backend = 0; |
|
|
884 | #if EV_USE_PORT |
|
|
885 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
886 | #endif |
591 | #if EV_USE_KQUEUE |
887 | #if EV_USE_KQUEUE |
592 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
888 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
593 | #endif |
889 | #endif |
594 | #if EV_USE_EPOLL |
890 | #if EV_USE_EPOLL |
595 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
891 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
596 | #endif |
892 | #endif |
597 | #if EV_USE_POLL |
893 | #if EV_USE_POLL |
598 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
894 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
599 | #endif |
895 | #endif |
600 | #if EV_USE_SELECT |
896 | #if EV_USE_SELECT |
601 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
897 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
602 | #endif |
898 | #endif |
603 | } |
|
|
604 | } |
|
|
605 | |
899 | |
606 | void |
900 | ev_init (&sigev, sigcb); |
|
|
901 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
902 | } |
|
|
903 | } |
|
|
904 | |
|
|
905 | static void noinline |
607 | loop_destroy (EV_P) |
906 | loop_destroy (EV_P) |
608 | { |
907 | { |
|
|
908 | int i; |
|
|
909 | |
|
|
910 | #if EV_USE_PORT |
|
|
911 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
912 | #endif |
609 | #if EV_USE_KQUEUE |
913 | #if EV_USE_KQUEUE |
610 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
914 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
611 | #endif |
915 | #endif |
612 | #if EV_USE_EPOLL |
916 | #if EV_USE_EPOLL |
613 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
917 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
614 | #endif |
918 | #endif |
615 | #if EV_USE_POLL |
919 | #if EV_USE_POLL |
616 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
920 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
617 | #endif |
921 | #endif |
618 | #if EV_USE_SELECT |
922 | #if EV_USE_SELECT |
619 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
923 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
620 | #endif |
924 | #endif |
621 | |
925 | |
622 | method = 0; |
926 | for (i = NUMPRI; i--; ) |
623 | /*TODO*/ |
927 | array_free (pending, [i]); |
624 | } |
|
|
625 | |
928 | |
626 | void |
929 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
930 | array_free (fdchange, EMPTY0); |
|
|
931 | array_free (timer, EMPTY0); |
|
|
932 | #if EV_PERIODIC_ENABLE |
|
|
933 | array_free (periodic, EMPTY0); |
|
|
934 | #endif |
|
|
935 | array_free (idle, EMPTY0); |
|
|
936 | array_free (prepare, EMPTY0); |
|
|
937 | array_free (check, EMPTY0); |
|
|
938 | |
|
|
939 | backend = 0; |
|
|
940 | } |
|
|
941 | |
|
|
942 | void inline_size |
627 | loop_fork (EV_P) |
943 | loop_fork (EV_P) |
628 | { |
944 | { |
629 | /*TODO*/ |
945 | #if EV_USE_PORT |
|
|
946 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
947 | #endif |
|
|
948 | #if EV_USE_KQUEUE |
|
|
949 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
950 | #endif |
630 | #if EV_USE_EPOLL |
951 | #if EV_USE_EPOLL |
631 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
952 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
632 | #endif |
953 | #endif |
633 | #if EV_USE_KQUEUE |
954 | |
634 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
955 | if (ev_is_active (&sigev)) |
635 | #endif |
956 | { |
|
|
957 | /* default loop */ |
|
|
958 | |
|
|
959 | ev_ref (EV_A); |
|
|
960 | ev_io_stop (EV_A_ &sigev); |
|
|
961 | close (sigpipe [0]); |
|
|
962 | close (sigpipe [1]); |
|
|
963 | |
|
|
964 | while (pipe (sigpipe)) |
|
|
965 | syserr ("(libev) error creating pipe"); |
|
|
966 | |
|
|
967 | siginit (EV_A); |
|
|
968 | } |
|
|
969 | |
|
|
970 | postfork = 0; |
636 | } |
971 | } |
637 | |
972 | |
638 | #if EV_MULTIPLICITY |
973 | #if EV_MULTIPLICITY |
639 | struct ev_loop * |
974 | struct ev_loop * |
640 | ev_loop_new (int methods) |
975 | ev_loop_new (unsigned int flags) |
641 | { |
976 | { |
642 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
977 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
643 | |
978 | |
|
|
979 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
980 | |
644 | loop_init (EV_A_ methods); |
981 | loop_init (EV_A_ flags); |
645 | |
982 | |
646 | if (ev_methods (EV_A)) |
983 | if (ev_backend (EV_A)) |
647 | return loop; |
984 | return loop; |
648 | |
985 | |
649 | return 0; |
986 | return 0; |
650 | } |
987 | } |
651 | |
988 | |
652 | void |
989 | void |
653 | ev_loop_destroy (EV_P) |
990 | ev_loop_destroy (EV_P) |
654 | { |
991 | { |
655 | loop_destroy (EV_A); |
992 | loop_destroy (EV_A); |
656 | free (loop); |
993 | ev_free (loop); |
657 | } |
994 | } |
658 | |
995 | |
659 | void |
996 | void |
660 | ev_loop_fork (EV_P) |
997 | ev_loop_fork (EV_P) |
661 | { |
998 | { |
662 | loop_fork (EV_A); |
999 | postfork = 1; |
663 | } |
1000 | } |
664 | |
1001 | |
665 | #endif |
1002 | #endif |
666 | |
1003 | |
667 | #if EV_MULTIPLICITY |
1004 | #if EV_MULTIPLICITY |
668 | struct ev_loop default_loop_struct; |
|
|
669 | static struct ev_loop *default_loop; |
|
|
670 | |
|
|
671 | struct ev_loop * |
1005 | struct ev_loop * |
|
|
1006 | ev_default_loop_init (unsigned int flags) |
672 | #else |
1007 | #else |
673 | static int default_loop; |
|
|
674 | |
|
|
675 | int |
1008 | int |
|
|
1009 | ev_default_loop (unsigned int flags) |
676 | #endif |
1010 | #endif |
677 | ev_default_loop (int methods) |
|
|
678 | { |
1011 | { |
679 | if (sigpipe [0] == sigpipe [1]) |
1012 | if (sigpipe [0] == sigpipe [1]) |
680 | if (pipe (sigpipe)) |
1013 | if (pipe (sigpipe)) |
681 | return 0; |
1014 | return 0; |
682 | |
1015 | |
683 | if (!default_loop) |
1016 | if (!ev_default_loop_ptr) |
684 | { |
1017 | { |
685 | #if EV_MULTIPLICITY |
1018 | #if EV_MULTIPLICITY |
686 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1019 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
687 | #else |
1020 | #else |
688 | default_loop = 1; |
1021 | ev_default_loop_ptr = 1; |
689 | #endif |
1022 | #endif |
690 | |
1023 | |
691 | loop_init (EV_A_ methods); |
1024 | loop_init (EV_A_ flags); |
692 | |
1025 | |
693 | if (ev_method (EV_A)) |
1026 | if (ev_backend (EV_A)) |
694 | { |
1027 | { |
695 | ev_watcher_init (&sigev, sigcb); |
|
|
696 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
697 | siginit (EV_A); |
1028 | siginit (EV_A); |
698 | |
1029 | |
699 | #ifndef WIN32 |
1030 | #ifndef _WIN32 |
700 | ev_signal_init (&childev, childcb, SIGCHLD); |
1031 | ev_signal_init (&childev, childcb, SIGCHLD); |
701 | ev_set_priority (&childev, EV_MAXPRI); |
1032 | ev_set_priority (&childev, EV_MAXPRI); |
702 | ev_signal_start (EV_A_ &childev); |
1033 | ev_signal_start (EV_A_ &childev); |
703 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1034 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
704 | #endif |
1035 | #endif |
705 | } |
1036 | } |
706 | else |
1037 | else |
707 | default_loop = 0; |
1038 | ev_default_loop_ptr = 0; |
708 | } |
1039 | } |
709 | |
1040 | |
710 | return default_loop; |
1041 | return ev_default_loop_ptr; |
711 | } |
1042 | } |
712 | |
1043 | |
713 | void |
1044 | void |
714 | ev_default_destroy (void) |
1045 | ev_default_destroy (void) |
715 | { |
1046 | { |
716 | #if EV_MULTIPLICITY |
1047 | #if EV_MULTIPLICITY |
717 | struct ev_loop *loop = default_loop; |
1048 | struct ev_loop *loop = ev_default_loop_ptr; |
718 | #endif |
1049 | #endif |
719 | |
1050 | |
|
|
1051 | #ifndef _WIN32 |
720 | ev_ref (EV_A); /* child watcher */ |
1052 | ev_ref (EV_A); /* child watcher */ |
721 | ev_signal_stop (EV_A_ &childev); |
1053 | ev_signal_stop (EV_A_ &childev); |
|
|
1054 | #endif |
722 | |
1055 | |
723 | ev_ref (EV_A); /* signal watcher */ |
1056 | ev_ref (EV_A); /* signal watcher */ |
724 | ev_io_stop (EV_A_ &sigev); |
1057 | ev_io_stop (EV_A_ &sigev); |
725 | |
1058 | |
726 | close (sigpipe [0]); sigpipe [0] = 0; |
1059 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
728 | |
1061 | |
729 | loop_destroy (EV_A); |
1062 | loop_destroy (EV_A); |
730 | } |
1063 | } |
731 | |
1064 | |
732 | void |
1065 | void |
733 | ev_default_fork (EV_P) |
1066 | ev_default_fork (void) |
734 | { |
1067 | { |
735 | loop_fork (EV_A); |
1068 | #if EV_MULTIPLICITY |
|
|
1069 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1070 | #endif |
736 | |
1071 | |
737 | ev_io_stop (EV_A_ &sigev); |
1072 | if (backend) |
738 | close (sigpipe [0]); |
1073 | postfork = 1; |
739 | close (sigpipe [1]); |
|
|
740 | pipe (sigpipe); |
|
|
741 | |
|
|
742 | ev_ref (EV_A); /* signal watcher */ |
|
|
743 | siginit (EV_A); |
|
|
744 | } |
1074 | } |
745 | |
1075 | |
746 | /*****************************************************************************/ |
1076 | /*****************************************************************************/ |
747 | |
1077 | |
748 | static void |
1078 | int inline_size |
|
|
1079 | any_pending (EV_P) |
|
|
1080 | { |
|
|
1081 | int pri; |
|
|
1082 | |
|
|
1083 | for (pri = NUMPRI; pri--; ) |
|
|
1084 | if (pendingcnt [pri]) |
|
|
1085 | return 1; |
|
|
1086 | |
|
|
1087 | return 0; |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | void inline_speed |
749 | call_pending (EV_P) |
1091 | call_pending (EV_P) |
750 | { |
1092 | { |
751 | int pri; |
1093 | int pri; |
752 | |
1094 | |
753 | for (pri = NUMPRI; pri--; ) |
1095 | for (pri = NUMPRI; pri--; ) |
754 | while (pendingcnt [pri]) |
1096 | while (pendingcnt [pri]) |
755 | { |
1097 | { |
756 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1098 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
757 | |
1099 | |
758 | if (p->w) |
1100 | if (expect_true (p->w)) |
759 | { |
1101 | { |
|
|
1102 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1103 | |
760 | p->w->pending = 0; |
1104 | p->w->pending = 0; |
761 | p->w->cb (EV_A_ p->w, p->events); |
1105 | EV_CB_INVOKE (p->w, p->events); |
762 | } |
1106 | } |
763 | } |
1107 | } |
764 | } |
1108 | } |
765 | |
1109 | |
766 | static void |
1110 | void inline_size |
767 | timers_reify (EV_P) |
1111 | timers_reify (EV_P) |
768 | { |
1112 | { |
769 | while (timercnt && timers [0]->at <= mn_now) |
1113 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
770 | { |
1114 | { |
771 | struct ev_timer *w = timers [0]; |
1115 | ev_timer *w = timers [0]; |
|
|
1116 | |
|
|
1117 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
772 | |
1118 | |
773 | /* first reschedule or stop timer */ |
1119 | /* first reschedule or stop timer */ |
774 | if (w->repeat) |
1120 | if (w->repeat) |
775 | { |
1121 | { |
776 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1122 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1123 | |
777 | w->at = mn_now + w->repeat; |
1124 | ((WT)w)->at += w->repeat; |
|
|
1125 | if (((WT)w)->at < mn_now) |
|
|
1126 | ((WT)w)->at = mn_now; |
|
|
1127 | |
778 | downheap ((WT *)timers, timercnt, 0); |
1128 | downheap ((WT *)timers, timercnt, 0); |
779 | } |
1129 | } |
780 | else |
1130 | else |
781 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1131 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
782 | |
1132 | |
783 | event (EV_A_ (W)w, EV_TIMEOUT); |
1133 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
784 | } |
1134 | } |
785 | } |
1135 | } |
786 | |
1136 | |
787 | static void |
1137 | #if EV_PERIODIC_ENABLE |
|
|
1138 | void inline_size |
788 | periodics_reify (EV_P) |
1139 | periodics_reify (EV_P) |
789 | { |
1140 | { |
790 | while (periodiccnt && periodics [0]->at <= rt_now) |
1141 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
791 | { |
1142 | { |
792 | struct ev_periodic *w = periodics [0]; |
1143 | ev_periodic *w = periodics [0]; |
|
|
1144 | |
|
|
1145 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
793 | |
1146 | |
794 | /* first reschedule or stop timer */ |
1147 | /* first reschedule or stop timer */ |
795 | if (w->interval) |
1148 | if (w->reschedule_cb) |
796 | { |
1149 | { |
|
|
1150 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1151 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1152 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1153 | } |
|
|
1154 | else if (w->interval) |
|
|
1155 | { |
797 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1156 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
798 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1157 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
799 | downheap ((WT *)periodics, periodiccnt, 0); |
1158 | downheap ((WT *)periodics, periodiccnt, 0); |
800 | } |
1159 | } |
801 | else |
1160 | else |
802 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1161 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
803 | |
1162 | |
804 | event (EV_A_ (W)w, EV_PERIODIC); |
1163 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
805 | } |
1164 | } |
806 | } |
1165 | } |
807 | |
1166 | |
808 | static void |
1167 | static void noinline |
809 | periodics_reschedule (EV_P) |
1168 | periodics_reschedule (EV_P) |
810 | { |
1169 | { |
811 | int i; |
1170 | int i; |
812 | |
1171 | |
813 | /* adjust periodics after time jump */ |
1172 | /* adjust periodics after time jump */ |
814 | for (i = 0; i < periodiccnt; ++i) |
1173 | for (i = 0; i < periodiccnt; ++i) |
815 | { |
1174 | { |
816 | struct ev_periodic *w = periodics [i]; |
1175 | ev_periodic *w = periodics [i]; |
817 | |
1176 | |
|
|
1177 | if (w->reschedule_cb) |
|
|
1178 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
818 | if (w->interval) |
1179 | else if (w->interval) |
819 | { |
|
|
820 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1180 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
821 | |
|
|
822 | if (fabs (diff) >= 1e-4) |
|
|
823 | { |
|
|
824 | ev_periodic_stop (EV_A_ w); |
|
|
825 | ev_periodic_start (EV_A_ w); |
|
|
826 | |
|
|
827 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
828 | } |
|
|
829 | } |
|
|
830 | } |
1181 | } |
831 | } |
|
|
832 | |
1182 | |
833 | inline int |
1183 | /* now rebuild the heap */ |
|
|
1184 | for (i = periodiccnt >> 1; i--; ) |
|
|
1185 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1186 | } |
|
|
1187 | #endif |
|
|
1188 | |
|
|
1189 | int inline_size |
834 | time_update_monotonic (EV_P) |
1190 | time_update_monotonic (EV_P) |
835 | { |
1191 | { |
836 | mn_now = get_clock (); |
1192 | mn_now = get_clock (); |
837 | |
1193 | |
838 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1194 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
839 | { |
1195 | { |
840 | rt_now = rtmn_diff + mn_now; |
1196 | ev_rt_now = rtmn_diff + mn_now; |
841 | return 0; |
1197 | return 0; |
842 | } |
1198 | } |
843 | else |
1199 | else |
844 | { |
1200 | { |
845 | now_floor = mn_now; |
1201 | now_floor = mn_now; |
846 | rt_now = ev_time (); |
1202 | ev_rt_now = ev_time (); |
847 | return 1; |
1203 | return 1; |
848 | } |
1204 | } |
849 | } |
1205 | } |
850 | |
1206 | |
851 | static void |
1207 | void inline_size |
852 | time_update (EV_P) |
1208 | time_update (EV_P) |
853 | { |
1209 | { |
854 | int i; |
1210 | int i; |
855 | |
1211 | |
856 | #if EV_USE_MONOTONIC |
1212 | #if EV_USE_MONOTONIC |
… | |
… | |
858 | { |
1214 | { |
859 | if (time_update_monotonic (EV_A)) |
1215 | if (time_update_monotonic (EV_A)) |
860 | { |
1216 | { |
861 | ev_tstamp odiff = rtmn_diff; |
1217 | ev_tstamp odiff = rtmn_diff; |
862 | |
1218 | |
863 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1219 | /* loop a few times, before making important decisions. |
|
|
1220 | * on the choice of "4": one iteration isn't enough, |
|
|
1221 | * in case we get preempted during the calls to |
|
|
1222 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1223 | * to succeed in that case, though. and looping a few more times |
|
|
1224 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1225 | * in the unlikely event of getting preempted here. |
|
|
1226 | */ |
|
|
1227 | for (i = 4; --i; ) |
864 | { |
1228 | { |
865 | rtmn_diff = rt_now - mn_now; |
1229 | rtmn_diff = ev_rt_now - mn_now; |
866 | |
1230 | |
867 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1231 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
868 | return; /* all is well */ |
1232 | return; /* all is well */ |
869 | |
1233 | |
870 | rt_now = ev_time (); |
1234 | ev_rt_now = ev_time (); |
871 | mn_now = get_clock (); |
1235 | mn_now = get_clock (); |
872 | now_floor = mn_now; |
1236 | now_floor = mn_now; |
873 | } |
1237 | } |
874 | |
1238 | |
|
|
1239 | # if EV_PERIODIC_ENABLE |
875 | periodics_reschedule (EV_A); |
1240 | periodics_reschedule (EV_A); |
|
|
1241 | # endif |
876 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1242 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
877 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1243 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
878 | } |
1244 | } |
879 | } |
1245 | } |
880 | else |
1246 | else |
881 | #endif |
1247 | #endif |
882 | { |
1248 | { |
883 | rt_now = ev_time (); |
1249 | ev_rt_now = ev_time (); |
884 | |
1250 | |
885 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1251 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
886 | { |
1252 | { |
|
|
1253 | #if EV_PERIODIC_ENABLE |
887 | periodics_reschedule (EV_A); |
1254 | periodics_reschedule (EV_A); |
|
|
1255 | #endif |
888 | |
1256 | |
889 | /* adjust timers. this is easy, as the offset is the same for all */ |
1257 | /* adjust timers. this is easy, as the offset is the same for all */ |
890 | for (i = 0; i < timercnt; ++i) |
1258 | for (i = 0; i < timercnt; ++i) |
891 | timers [i]->at += rt_now - mn_now; |
1259 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
892 | } |
1260 | } |
893 | |
1261 | |
894 | mn_now = rt_now; |
1262 | mn_now = ev_rt_now; |
895 | } |
1263 | } |
896 | } |
1264 | } |
897 | |
1265 | |
898 | void |
1266 | void |
899 | ev_ref (EV_P) |
1267 | ev_ref (EV_P) |
… | |
… | |
910 | static int loop_done; |
1278 | static int loop_done; |
911 | |
1279 | |
912 | void |
1280 | void |
913 | ev_loop (EV_P_ int flags) |
1281 | ev_loop (EV_P_ int flags) |
914 | { |
1282 | { |
915 | double block; |
|
|
916 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1283 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1284 | ? EVUNLOOP_ONE |
|
|
1285 | : EVUNLOOP_CANCEL; |
917 | |
1286 | |
918 | do |
1287 | while (activecnt) |
919 | { |
1288 | { |
|
|
1289 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1290 | #if EV_FORK_ENABLE |
|
|
1291 | if (expect_false (postfork)) |
|
|
1292 | if (forkcnt) |
|
|
1293 | { |
|
|
1294 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1295 | call_pending (EV_A); |
|
|
1296 | } |
|
|
1297 | #endif |
|
|
1298 | |
920 | /* queue check watchers (and execute them) */ |
1299 | /* queue check watchers (and execute them) */ |
921 | if (expect_false (preparecnt)) |
1300 | if (expect_false (preparecnt)) |
922 | { |
1301 | { |
923 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1302 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
924 | call_pending (EV_A); |
1303 | call_pending (EV_A); |
925 | } |
1304 | } |
926 | |
1305 | |
|
|
1306 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1307 | if (expect_false (postfork)) |
|
|
1308 | loop_fork (EV_A); |
|
|
1309 | |
927 | /* update fd-related kernel structures */ |
1310 | /* update fd-related kernel structures */ |
928 | fd_reify (EV_A); |
1311 | fd_reify (EV_A); |
929 | |
1312 | |
930 | /* calculate blocking time */ |
1313 | /* calculate blocking time */ |
|
|
1314 | { |
|
|
1315 | double block; |
931 | |
1316 | |
932 | /* we only need this for !monotonic clockor timers, but as we basically |
1317 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
933 | always have timers, we just calculate it always */ |
1318 | block = 0.; /* do not block at all */ |
|
|
1319 | else |
|
|
1320 | { |
|
|
1321 | /* update time to cancel out callback processing overhead */ |
934 | #if EV_USE_MONOTONIC |
1322 | #if EV_USE_MONOTONIC |
935 | if (expect_true (have_monotonic)) |
1323 | if (expect_true (have_monotonic)) |
936 | time_update_monotonic (EV_A); |
1324 | time_update_monotonic (EV_A); |
937 | else |
1325 | else |
938 | #endif |
1326 | #endif |
939 | { |
1327 | { |
940 | rt_now = ev_time (); |
1328 | ev_rt_now = ev_time (); |
941 | mn_now = rt_now; |
1329 | mn_now = ev_rt_now; |
942 | } |
1330 | } |
943 | |
1331 | |
944 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
945 | block = 0.; |
|
|
946 | else |
|
|
947 | { |
|
|
948 | block = MAX_BLOCKTIME; |
1332 | block = MAX_BLOCKTIME; |
949 | |
1333 | |
950 | if (timercnt) |
1334 | if (timercnt) |
951 | { |
1335 | { |
952 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1336 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
953 | if (block > to) block = to; |
1337 | if (block > to) block = to; |
954 | } |
1338 | } |
955 | |
1339 | |
|
|
1340 | #if EV_PERIODIC_ENABLE |
956 | if (periodiccnt) |
1341 | if (periodiccnt) |
957 | { |
1342 | { |
958 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1343 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
959 | if (block > to) block = to; |
1344 | if (block > to) block = to; |
960 | } |
1345 | } |
|
|
1346 | #endif |
961 | |
1347 | |
962 | if (block < 0.) block = 0.; |
1348 | if (expect_false (block < 0.)) block = 0.; |
963 | } |
1349 | } |
964 | |
1350 | |
965 | method_poll (EV_A_ block); |
1351 | backend_poll (EV_A_ block); |
|
|
1352 | } |
966 | |
1353 | |
967 | /* update rt_now, do magic */ |
1354 | /* update ev_rt_now, do magic */ |
968 | time_update (EV_A); |
1355 | time_update (EV_A); |
969 | |
1356 | |
970 | /* queue pending timers and reschedule them */ |
1357 | /* queue pending timers and reschedule them */ |
971 | timers_reify (EV_A); /* relative timers called last */ |
1358 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1359 | #if EV_PERIODIC_ENABLE |
972 | periodics_reify (EV_A); /* absolute timers called first */ |
1360 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1361 | #endif |
973 | |
1362 | |
974 | /* queue idle watchers unless io or timers are pending */ |
1363 | /* queue idle watchers unless other events are pending */ |
975 | if (!pendingcnt) |
1364 | if (idlecnt && !any_pending (EV_A)) |
976 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1365 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
977 | |
1366 | |
978 | /* queue check watchers, to be executed first */ |
1367 | /* queue check watchers, to be executed first */ |
979 | if (checkcnt) |
1368 | if (expect_false (checkcnt)) |
980 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1369 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
981 | |
1370 | |
982 | call_pending (EV_A); |
1371 | call_pending (EV_A); |
983 | } |
|
|
984 | while (activecnt && !loop_done); |
|
|
985 | |
1372 | |
986 | if (loop_done != 2) |
1373 | if (expect_false (loop_done)) |
987 | loop_done = 0; |
1374 | break; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | if (loop_done == EVUNLOOP_ONE) |
|
|
1378 | loop_done = EVUNLOOP_CANCEL; |
988 | } |
1379 | } |
989 | |
1380 | |
990 | void |
1381 | void |
991 | ev_unloop (EV_P_ int how) |
1382 | ev_unloop (EV_P_ int how) |
992 | { |
1383 | { |
993 | loop_done = how; |
1384 | loop_done = how; |
994 | } |
1385 | } |
995 | |
1386 | |
996 | /*****************************************************************************/ |
1387 | /*****************************************************************************/ |
997 | |
1388 | |
998 | inline void |
1389 | void inline_size |
999 | wlist_add (WL *head, WL elem) |
1390 | wlist_add (WL *head, WL elem) |
1000 | { |
1391 | { |
1001 | elem->next = *head; |
1392 | elem->next = *head; |
1002 | *head = elem; |
1393 | *head = elem; |
1003 | } |
1394 | } |
1004 | |
1395 | |
1005 | inline void |
1396 | void inline_size |
1006 | wlist_del (WL *head, WL elem) |
1397 | wlist_del (WL *head, WL elem) |
1007 | { |
1398 | { |
1008 | while (*head) |
1399 | while (*head) |
1009 | { |
1400 | { |
1010 | if (*head == elem) |
1401 | if (*head == elem) |
… | |
… | |
1015 | |
1406 | |
1016 | head = &(*head)->next; |
1407 | head = &(*head)->next; |
1017 | } |
1408 | } |
1018 | } |
1409 | } |
1019 | |
1410 | |
1020 | inline void |
1411 | void inline_speed |
1021 | ev_clear_pending (EV_P_ W w) |
1412 | ev_clear_pending (EV_P_ W w) |
1022 | { |
1413 | { |
1023 | if (w->pending) |
1414 | if (w->pending) |
1024 | { |
1415 | { |
1025 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1416 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1026 | w->pending = 0; |
1417 | w->pending = 0; |
1027 | } |
1418 | } |
1028 | } |
1419 | } |
1029 | |
1420 | |
1030 | inline void |
1421 | void inline_speed |
1031 | ev_start (EV_P_ W w, int active) |
1422 | ev_start (EV_P_ W w, int active) |
1032 | { |
1423 | { |
1033 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1424 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1034 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1425 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1035 | |
1426 | |
1036 | w->active = active; |
1427 | w->active = active; |
1037 | ev_ref (EV_A); |
1428 | ev_ref (EV_A); |
1038 | } |
1429 | } |
1039 | |
1430 | |
1040 | inline void |
1431 | void inline_size |
1041 | ev_stop (EV_P_ W w) |
1432 | ev_stop (EV_P_ W w) |
1042 | { |
1433 | { |
1043 | ev_unref (EV_A); |
1434 | ev_unref (EV_A); |
1044 | w->active = 0; |
1435 | w->active = 0; |
1045 | } |
1436 | } |
1046 | |
1437 | |
1047 | /*****************************************************************************/ |
1438 | /*****************************************************************************/ |
1048 | |
1439 | |
1049 | void |
1440 | void |
1050 | ev_io_start (EV_P_ struct ev_io *w) |
1441 | ev_io_start (EV_P_ ev_io *w) |
1051 | { |
1442 | { |
1052 | int fd = w->fd; |
1443 | int fd = w->fd; |
1053 | |
1444 | |
1054 | if (ev_is_active (w)) |
1445 | if (expect_false (ev_is_active (w))) |
1055 | return; |
1446 | return; |
1056 | |
1447 | |
1057 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1448 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1058 | |
1449 | |
1059 | ev_start (EV_A_ (W)w, 1); |
1450 | ev_start (EV_A_ (W)w, 1); |
1060 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1451 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1061 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1452 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1062 | |
1453 | |
1063 | fd_change (EV_A_ fd); |
1454 | fd_change (EV_A_ fd); |
1064 | } |
1455 | } |
1065 | |
1456 | |
1066 | void |
1457 | void |
1067 | ev_io_stop (EV_P_ struct ev_io *w) |
1458 | ev_io_stop (EV_P_ ev_io *w) |
1068 | { |
1459 | { |
1069 | ev_clear_pending (EV_A_ (W)w); |
1460 | ev_clear_pending (EV_A_ (W)w); |
1070 | if (!ev_is_active (w)) |
1461 | if (expect_false (!ev_is_active (w))) |
1071 | return; |
1462 | return; |
|
|
1463 | |
|
|
1464 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1072 | |
1465 | |
1073 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1466 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1074 | ev_stop (EV_A_ (W)w); |
1467 | ev_stop (EV_A_ (W)w); |
1075 | |
1468 | |
1076 | fd_change (EV_A_ w->fd); |
1469 | fd_change (EV_A_ w->fd); |
1077 | } |
1470 | } |
1078 | |
1471 | |
1079 | void |
1472 | void |
1080 | ev_timer_start (EV_P_ struct ev_timer *w) |
1473 | ev_timer_start (EV_P_ ev_timer *w) |
1081 | { |
1474 | { |
1082 | if (ev_is_active (w)) |
1475 | if (expect_false (ev_is_active (w))) |
1083 | return; |
1476 | return; |
1084 | |
1477 | |
1085 | w->at += mn_now; |
1478 | ((WT)w)->at += mn_now; |
1086 | |
1479 | |
1087 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1480 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1088 | |
1481 | |
1089 | ev_start (EV_A_ (W)w, ++timercnt); |
1482 | ev_start (EV_A_ (W)w, ++timercnt); |
1090 | array_needsize (timers, timermax, timercnt, ); |
1483 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1091 | timers [timercnt - 1] = w; |
1484 | timers [timercnt - 1] = w; |
1092 | upheap ((WT *)timers, timercnt - 1); |
1485 | upheap ((WT *)timers, timercnt - 1); |
1093 | } |
|
|
1094 | |
1486 | |
|
|
1487 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1488 | } |
|
|
1489 | |
1095 | void |
1490 | void |
1096 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1491 | ev_timer_stop (EV_P_ ev_timer *w) |
1097 | { |
1492 | { |
1098 | ev_clear_pending (EV_A_ (W)w); |
1493 | ev_clear_pending (EV_A_ (W)w); |
1099 | if (!ev_is_active (w)) |
1494 | if (expect_false (!ev_is_active (w))) |
1100 | return; |
1495 | return; |
1101 | |
1496 | |
1102 | if (w->active < timercnt--) |
1497 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1498 | |
|
|
1499 | { |
|
|
1500 | int active = ((W)w)->active; |
|
|
1501 | |
|
|
1502 | if (expect_true (--active < --timercnt)) |
1103 | { |
1503 | { |
1104 | timers [w->active - 1] = timers [timercnt]; |
1504 | timers [active] = timers [timercnt]; |
1105 | downheap ((WT *)timers, timercnt, w->active - 1); |
1505 | adjustheap ((WT *)timers, timercnt, active); |
1106 | } |
1506 | } |
|
|
1507 | } |
1107 | |
1508 | |
1108 | w->at = w->repeat; |
1509 | ((WT)w)->at -= mn_now; |
1109 | |
1510 | |
1110 | ev_stop (EV_A_ (W)w); |
1511 | ev_stop (EV_A_ (W)w); |
1111 | } |
1512 | } |
1112 | |
1513 | |
1113 | void |
1514 | void |
1114 | ev_timer_again (EV_P_ struct ev_timer *w) |
1515 | ev_timer_again (EV_P_ ev_timer *w) |
1115 | { |
1516 | { |
1116 | if (ev_is_active (w)) |
1517 | if (ev_is_active (w)) |
1117 | { |
1518 | { |
1118 | if (w->repeat) |
1519 | if (w->repeat) |
1119 | { |
1520 | { |
1120 | w->at = mn_now + w->repeat; |
1521 | ((WT)w)->at = mn_now + w->repeat; |
1121 | downheap ((WT *)timers, timercnt, w->active - 1); |
1522 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1122 | } |
1523 | } |
1123 | else |
1524 | else |
1124 | ev_timer_stop (EV_A_ w); |
1525 | ev_timer_stop (EV_A_ w); |
1125 | } |
1526 | } |
1126 | else if (w->repeat) |
1527 | else if (w->repeat) |
|
|
1528 | { |
|
|
1529 | w->at = w->repeat; |
1127 | ev_timer_start (EV_A_ w); |
1530 | ev_timer_start (EV_A_ w); |
|
|
1531 | } |
1128 | } |
1532 | } |
1129 | |
1533 | |
|
|
1534 | #if EV_PERIODIC_ENABLE |
1130 | void |
1535 | void |
1131 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1536 | ev_periodic_start (EV_P_ ev_periodic *w) |
1132 | { |
1537 | { |
1133 | if (ev_is_active (w)) |
1538 | if (expect_false (ev_is_active (w))) |
1134 | return; |
1539 | return; |
1135 | |
1540 | |
|
|
1541 | if (w->reschedule_cb) |
|
|
1542 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1543 | else if (w->interval) |
|
|
1544 | { |
1136 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1545 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1137 | |
|
|
1138 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1546 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1139 | if (w->interval) |
|
|
1140 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1547 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1548 | } |
1141 | |
1549 | |
1142 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1550 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1143 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1551 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1144 | periodics [periodiccnt - 1] = w; |
1552 | periodics [periodiccnt - 1] = w; |
1145 | upheap ((WT *)periodics, periodiccnt - 1); |
1553 | upheap ((WT *)periodics, periodiccnt - 1); |
1146 | } |
|
|
1147 | |
1554 | |
|
|
1555 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1556 | } |
|
|
1557 | |
1148 | void |
1558 | void |
1149 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1559 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1150 | { |
1560 | { |
1151 | ev_clear_pending (EV_A_ (W)w); |
1561 | ev_clear_pending (EV_A_ (W)w); |
1152 | if (!ev_is_active (w)) |
1562 | if (expect_false (!ev_is_active (w))) |
1153 | return; |
1563 | return; |
1154 | |
1564 | |
1155 | if (w->active < periodiccnt--) |
1565 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1566 | |
|
|
1567 | { |
|
|
1568 | int active = ((W)w)->active; |
|
|
1569 | |
|
|
1570 | if (expect_true (--active < --periodiccnt)) |
1156 | { |
1571 | { |
1157 | periodics [w->active - 1] = periodics [periodiccnt]; |
1572 | periodics [active] = periodics [periodiccnt]; |
1158 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1573 | adjustheap ((WT *)periodics, periodiccnt, active); |
1159 | } |
1574 | } |
|
|
1575 | } |
1160 | |
1576 | |
1161 | ev_stop (EV_A_ (W)w); |
1577 | ev_stop (EV_A_ (W)w); |
1162 | } |
1578 | } |
1163 | |
1579 | |
1164 | void |
1580 | void |
1165 | ev_idle_start (EV_P_ struct ev_idle *w) |
1581 | ev_periodic_again (EV_P_ ev_periodic *w) |
1166 | { |
1582 | { |
1167 | if (ev_is_active (w)) |
1583 | /* TODO: use adjustheap and recalculation */ |
1168 | return; |
|
|
1169 | |
|
|
1170 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1171 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1172 | idles [idlecnt - 1] = w; |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | void |
|
|
1176 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1177 | { |
|
|
1178 | ev_clear_pending (EV_A_ (W)w); |
|
|
1179 | if (ev_is_active (w)) |
|
|
1180 | return; |
|
|
1181 | |
|
|
1182 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1183 | ev_stop (EV_A_ (W)w); |
1584 | ev_periodic_stop (EV_A_ w); |
|
|
1585 | ev_periodic_start (EV_A_ w); |
1184 | } |
1586 | } |
1185 | |
1587 | #endif |
1186 | void |
|
|
1187 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1188 | { |
|
|
1189 | if (ev_is_active (w)) |
|
|
1190 | return; |
|
|
1191 | |
|
|
1192 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1193 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1194 | prepares [preparecnt - 1] = w; |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | void |
|
|
1198 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1199 | { |
|
|
1200 | ev_clear_pending (EV_A_ (W)w); |
|
|
1201 | if (ev_is_active (w)) |
|
|
1202 | return; |
|
|
1203 | |
|
|
1204 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1205 | ev_stop (EV_A_ (W)w); |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | void |
|
|
1209 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1210 | { |
|
|
1211 | if (ev_is_active (w)) |
|
|
1212 | return; |
|
|
1213 | |
|
|
1214 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1215 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1216 | checks [checkcnt - 1] = w; |
|
|
1217 | } |
|
|
1218 | |
|
|
1219 | void |
|
|
1220 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1221 | { |
|
|
1222 | ev_clear_pending (EV_A_ (W)w); |
|
|
1223 | if (ev_is_active (w)) |
|
|
1224 | return; |
|
|
1225 | |
|
|
1226 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1227 | ev_stop (EV_A_ (W)w); |
|
|
1228 | } |
|
|
1229 | |
1588 | |
1230 | #ifndef SA_RESTART |
1589 | #ifndef SA_RESTART |
1231 | # define SA_RESTART 0 |
1590 | # define SA_RESTART 0 |
1232 | #endif |
1591 | #endif |
1233 | |
1592 | |
1234 | void |
1593 | void |
1235 | ev_signal_start (EV_P_ struct ev_signal *w) |
1594 | ev_signal_start (EV_P_ ev_signal *w) |
1236 | { |
1595 | { |
1237 | #if EV_MULTIPLICITY |
1596 | #if EV_MULTIPLICITY |
1238 | 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)); |
1239 | #endif |
1598 | #endif |
1240 | if (ev_is_active (w)) |
1599 | if (expect_false (ev_is_active (w))) |
1241 | return; |
1600 | return; |
1242 | |
1601 | |
1243 | 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)); |
1244 | |
1603 | |
1245 | ev_start (EV_A_ (W)w, 1); |
1604 | ev_start (EV_A_ (W)w, 1); |
1246 | array_needsize (signals, signalmax, w->signum, signals_init); |
1605 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1247 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1606 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1248 | |
1607 | |
1249 | if (!w->next) |
1608 | if (!((WL)w)->next) |
1250 | { |
1609 | { |
|
|
1610 | #if _WIN32 |
|
|
1611 | signal (w->signum, sighandler); |
|
|
1612 | #else |
1251 | struct sigaction sa; |
1613 | struct sigaction sa; |
1252 | sa.sa_handler = sighandler; |
1614 | sa.sa_handler = sighandler; |
1253 | sigfillset (&sa.sa_mask); |
1615 | sigfillset (&sa.sa_mask); |
1254 | 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 */ |
1255 | sigaction (w->signum, &sa, 0); |
1617 | sigaction (w->signum, &sa, 0); |
|
|
1618 | #endif |
1256 | } |
1619 | } |
1257 | } |
1620 | } |
1258 | |
1621 | |
1259 | void |
1622 | void |
1260 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1623 | ev_signal_stop (EV_P_ ev_signal *w) |
1261 | { |
1624 | { |
1262 | ev_clear_pending (EV_A_ (W)w); |
1625 | ev_clear_pending (EV_A_ (W)w); |
1263 | if (!ev_is_active (w)) |
1626 | if (expect_false (!ev_is_active (w))) |
1264 | return; |
1627 | return; |
1265 | |
1628 | |
1266 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1629 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1267 | ev_stop (EV_A_ (W)w); |
1630 | ev_stop (EV_A_ (W)w); |
1268 | |
1631 | |
1269 | if (!signals [w->signum - 1].head) |
1632 | if (!signals [w->signum - 1].head) |
1270 | signal (w->signum, SIG_DFL); |
1633 | signal (w->signum, SIG_DFL); |
1271 | } |
1634 | } |
1272 | |
1635 | |
1273 | void |
1636 | void |
1274 | ev_child_start (EV_P_ struct ev_child *w) |
1637 | ev_child_start (EV_P_ ev_child *w) |
1275 | { |
1638 | { |
1276 | #if EV_MULTIPLICITY |
1639 | #if EV_MULTIPLICITY |
1277 | 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)); |
1278 | #endif |
1641 | #endif |
1279 | if (ev_is_active (w)) |
1642 | if (expect_false (ev_is_active (w))) |
1280 | return; |
1643 | return; |
1281 | |
1644 | |
1282 | ev_start (EV_A_ (W)w, 1); |
1645 | ev_start (EV_A_ (W)w, 1); |
1283 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1646 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1284 | } |
1647 | } |
1285 | |
1648 | |
1286 | void |
1649 | void |
1287 | ev_child_stop (EV_P_ struct ev_child *w) |
1650 | ev_child_stop (EV_P_ ev_child *w) |
1288 | { |
1651 | { |
1289 | ev_clear_pending (EV_A_ (W)w); |
1652 | ev_clear_pending (EV_A_ (W)w); |
1290 | if (ev_is_active (w)) |
1653 | if (expect_false (!ev_is_active (w))) |
1291 | return; |
1654 | return; |
1292 | |
1655 | |
1293 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1656 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1294 | ev_stop (EV_A_ (W)w); |
1657 | ev_stop (EV_A_ (W)w); |
1295 | } |
1658 | } |
1296 | |
1659 | |
|
|
1660 | #if EV_STAT_ENABLE |
|
|
1661 | |
|
|
1662 | # ifdef _WIN32 |
|
|
1663 | # undef lstat |
|
|
1664 | # define lstat(a,b) _stati64 (a,b) |
|
|
1665 | # endif |
|
|
1666 | |
|
|
1667 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1668 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1669 | |
|
|
1670 | void |
|
|
1671 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1672 | { |
|
|
1673 | if (lstat (w->path, &w->attr) < 0) |
|
|
1674 | w->attr.st_nlink = 0; |
|
|
1675 | else if (!w->attr.st_nlink) |
|
|
1676 | w->attr.st_nlink = 1; |
|
|
1677 | } |
|
|
1678 | |
|
|
1679 | static void |
|
|
1680 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1681 | { |
|
|
1682 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1683 | |
|
|
1684 | /* we copy this here each the time so that */ |
|
|
1685 | /* prev has the old value when the callback gets invoked */ |
|
|
1686 | w->prev = w->attr; |
|
|
1687 | ev_stat_stat (EV_A_ w); |
|
|
1688 | |
|
|
1689 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1690 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1691 | } |
|
|
1692 | |
|
|
1693 | void |
|
|
1694 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1695 | { |
|
|
1696 | if (expect_false (ev_is_active (w))) |
|
|
1697 | return; |
|
|
1698 | |
|
|
1699 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1700 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1701 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1702 | |
|
|
1703 | ev_stat_stat (EV_A_ w); |
|
|
1704 | |
|
|
1705 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
1706 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1707 | |
|
|
1708 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1709 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1710 | ev_timer_start (EV_A_ &w->timer); |
|
|
1711 | |
|
|
1712 | ev_start (EV_A_ (W)w, 1); |
|
|
1713 | } |
|
|
1714 | |
|
|
1715 | void |
|
|
1716 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1717 | { |
|
|
1718 | ev_clear_pending (EV_A_ (W)w); |
|
|
1719 | if (expect_false (!ev_is_active (w))) |
|
|
1720 | return; |
|
|
1721 | |
|
|
1722 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1723 | |
|
|
1724 | ev_stop (EV_A_ (W)w); |
|
|
1725 | } |
|
|
1726 | #endif |
|
|
1727 | |
|
|
1728 | void |
|
|
1729 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
1730 | { |
|
|
1731 | if (expect_false (ev_is_active (w))) |
|
|
1732 | return; |
|
|
1733 | |
|
|
1734 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1735 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1736 | idles [idlecnt - 1] = w; |
|
|
1737 | } |
|
|
1738 | |
|
|
1739 | void |
|
|
1740 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
1741 | { |
|
|
1742 | ev_clear_pending (EV_A_ (W)w); |
|
|
1743 | if (expect_false (!ev_is_active (w))) |
|
|
1744 | return; |
|
|
1745 | |
|
|
1746 | { |
|
|
1747 | int active = ((W)w)->active; |
|
|
1748 | idles [active - 1] = idles [--idlecnt]; |
|
|
1749 | ((W)idles [active - 1])->active = active; |
|
|
1750 | } |
|
|
1751 | |
|
|
1752 | ev_stop (EV_A_ (W)w); |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | void |
|
|
1756 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
1757 | { |
|
|
1758 | if (expect_false (ev_is_active (w))) |
|
|
1759 | return; |
|
|
1760 | |
|
|
1761 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1762 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1763 | prepares [preparecnt - 1] = w; |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | void |
|
|
1767 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
1768 | { |
|
|
1769 | ev_clear_pending (EV_A_ (W)w); |
|
|
1770 | if (expect_false (!ev_is_active (w))) |
|
|
1771 | return; |
|
|
1772 | |
|
|
1773 | { |
|
|
1774 | int active = ((W)w)->active; |
|
|
1775 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
1776 | ((W)prepares [active - 1])->active = active; |
|
|
1777 | } |
|
|
1778 | |
|
|
1779 | ev_stop (EV_A_ (W)w); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | void |
|
|
1783 | ev_check_start (EV_P_ ev_check *w) |
|
|
1784 | { |
|
|
1785 | if (expect_false (ev_is_active (w))) |
|
|
1786 | return; |
|
|
1787 | |
|
|
1788 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1789 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1790 | checks [checkcnt - 1] = w; |
|
|
1791 | } |
|
|
1792 | |
|
|
1793 | void |
|
|
1794 | ev_check_stop (EV_P_ ev_check *w) |
|
|
1795 | { |
|
|
1796 | ev_clear_pending (EV_A_ (W)w); |
|
|
1797 | if (expect_false (!ev_is_active (w))) |
|
|
1798 | return; |
|
|
1799 | |
|
|
1800 | { |
|
|
1801 | int active = ((W)w)->active; |
|
|
1802 | checks [active - 1] = checks [--checkcnt]; |
|
|
1803 | ((W)checks [active - 1])->active = active; |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | ev_stop (EV_A_ (W)w); |
|
|
1807 | } |
|
|
1808 | |
|
|
1809 | #if EV_EMBED_ENABLE |
|
|
1810 | void noinline |
|
|
1811 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
1812 | { |
|
|
1813 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
1814 | } |
|
|
1815 | |
|
|
1816 | static void |
|
|
1817 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
1818 | { |
|
|
1819 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
1820 | |
|
|
1821 | if (ev_cb (w)) |
|
|
1822 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
1823 | else |
|
|
1824 | ev_embed_sweep (loop, w); |
|
|
1825 | } |
|
|
1826 | |
|
|
1827 | void |
|
|
1828 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
1829 | { |
|
|
1830 | if (expect_false (ev_is_active (w))) |
|
|
1831 | return; |
|
|
1832 | |
|
|
1833 | { |
|
|
1834 | struct ev_loop *loop = w->loop; |
|
|
1835 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
1836 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1837 | } |
|
|
1838 | |
|
|
1839 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1840 | ev_io_start (EV_A_ &w->io); |
|
|
1841 | |
|
|
1842 | ev_start (EV_A_ (W)w, 1); |
|
|
1843 | } |
|
|
1844 | |
|
|
1845 | void |
|
|
1846 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
1847 | { |
|
|
1848 | ev_clear_pending (EV_A_ (W)w); |
|
|
1849 | if (expect_false (!ev_is_active (w))) |
|
|
1850 | return; |
|
|
1851 | |
|
|
1852 | ev_io_stop (EV_A_ &w->io); |
|
|
1853 | |
|
|
1854 | ev_stop (EV_A_ (W)w); |
|
|
1855 | } |
|
|
1856 | #endif |
|
|
1857 | |
|
|
1858 | #if EV_FORK_ENABLE |
|
|
1859 | void |
|
|
1860 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
1861 | { |
|
|
1862 | if (expect_false (ev_is_active (w))) |
|
|
1863 | return; |
|
|
1864 | |
|
|
1865 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
1866 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
1867 | forks [forkcnt - 1] = w; |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | void |
|
|
1871 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
1872 | { |
|
|
1873 | ev_clear_pending (EV_A_ (W)w); |
|
|
1874 | if (expect_false (!ev_is_active (w))) |
|
|
1875 | return; |
|
|
1876 | |
|
|
1877 | { |
|
|
1878 | int active = ((W)w)->active; |
|
|
1879 | forks [active - 1] = forks [--forkcnt]; |
|
|
1880 | ((W)forks [active - 1])->active = active; |
|
|
1881 | } |
|
|
1882 | |
|
|
1883 | ev_stop (EV_A_ (W)w); |
|
|
1884 | } |
|
|
1885 | #endif |
|
|
1886 | |
1297 | /*****************************************************************************/ |
1887 | /*****************************************************************************/ |
1298 | |
1888 | |
1299 | struct ev_once |
1889 | struct ev_once |
1300 | { |
1890 | { |
1301 | struct ev_io io; |
1891 | ev_io io; |
1302 | struct ev_timer to; |
1892 | ev_timer to; |
1303 | void (*cb)(int revents, void *arg); |
1893 | void (*cb)(int revents, void *arg); |
1304 | void *arg; |
1894 | void *arg; |
1305 | }; |
1895 | }; |
1306 | |
1896 | |
1307 | static void |
1897 | static void |
… | |
… | |
1310 | void (*cb)(int revents, void *arg) = once->cb; |
1900 | void (*cb)(int revents, void *arg) = once->cb; |
1311 | void *arg = once->arg; |
1901 | void *arg = once->arg; |
1312 | |
1902 | |
1313 | ev_io_stop (EV_A_ &once->io); |
1903 | ev_io_stop (EV_A_ &once->io); |
1314 | ev_timer_stop (EV_A_ &once->to); |
1904 | ev_timer_stop (EV_A_ &once->to); |
1315 | free (once); |
1905 | ev_free (once); |
1316 | |
1906 | |
1317 | cb (revents, arg); |
1907 | cb (revents, arg); |
1318 | } |
1908 | } |
1319 | |
1909 | |
1320 | static void |
1910 | static void |
1321 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1911 | once_cb_io (EV_P_ ev_io *w, int revents) |
1322 | { |
1912 | { |
1323 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1913 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1324 | } |
1914 | } |
1325 | |
1915 | |
1326 | static void |
1916 | static void |
1327 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1917 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1328 | { |
1918 | { |
1329 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1919 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1330 | } |
1920 | } |
1331 | |
1921 | |
1332 | void |
1922 | void |
1333 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1923 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1334 | { |
1924 | { |
1335 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1925 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1336 | |
1926 | |
1337 | if (!once) |
1927 | if (expect_false (!once)) |
|
|
1928 | { |
1338 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1929 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1339 | else |
1930 | return; |
1340 | { |
1931 | } |
|
|
1932 | |
1341 | once->cb = cb; |
1933 | once->cb = cb; |
1342 | once->arg = arg; |
1934 | once->arg = arg; |
1343 | |
1935 | |
1344 | ev_watcher_init (&once->io, once_cb_io); |
1936 | ev_init (&once->io, once_cb_io); |
1345 | if (fd >= 0) |
1937 | if (fd >= 0) |
1346 | { |
1938 | { |
1347 | ev_io_set (&once->io, fd, events); |
1939 | ev_io_set (&once->io, fd, events); |
1348 | ev_io_start (EV_A_ &once->io); |
1940 | ev_io_start (EV_A_ &once->io); |
1349 | } |
1941 | } |
1350 | |
1942 | |
1351 | ev_watcher_init (&once->to, once_cb_to); |
1943 | ev_init (&once->to, once_cb_to); |
1352 | if (timeout >= 0.) |
1944 | if (timeout >= 0.) |
1353 | { |
1945 | { |
1354 | ev_timer_set (&once->to, timeout, 0.); |
1946 | ev_timer_set (&once->to, timeout, 0.); |
1355 | ev_timer_start (EV_A_ &once->to); |
1947 | ev_timer_start (EV_A_ &once->to); |
1356 | } |
|
|
1357 | } |
1948 | } |
1358 | } |
1949 | } |
1359 | |
1950 | |
|
|
1951 | #ifdef __cplusplus |
|
|
1952 | } |
|
|
1953 | #endif |
|
|
1954 | |