… | |
… | |
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 |
33 | |
42 | |
34 | # if HAVE_CLOCK_GETTIME |
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
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 |
37 | # endif |
57 | # endif |
38 | |
58 | |
|
|
59 | # ifndef EV_USE_SELECT |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
40 | # define EV_USE_SELECT 1 |
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
41 | # endif |
65 | # endif |
42 | |
66 | |
|
|
67 | # ifndef EV_USE_POLL |
43 | # if HAVE_POLL && HAVE_POLL_H |
68 | # if HAVE_POLL && HAVE_POLL_H |
44 | # define EV_USE_POLL 1 |
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
45 | # endif |
73 | # endif |
46 | |
74 | |
|
|
75 | # ifndef EV_USE_EPOLL |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
48 | # define EV_USE_EPOLL 1 |
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
49 | # endif |
81 | # endif |
50 | |
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
52 | # define EV_USE_KQUEUE 1 |
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 | |
|
|
99 | # ifndef EV_USE_INOTIFY |
|
|
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
101 | # define EV_USE_INOTIFY 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_INOTIFY 0 |
|
|
104 | # endif |
53 | # endif |
105 | # endif |
54 | |
106 | |
55 | #endif |
107 | #endif |
56 | |
108 | |
57 | #include <math.h> |
109 | #include <math.h> |
58 | #include <stdlib.h> |
110 | #include <stdlib.h> |
59 | #include <unistd.h> |
|
|
60 | #include <fcntl.h> |
111 | #include <fcntl.h> |
61 | #include <signal.h> |
|
|
62 | #include <stddef.h> |
112 | #include <stddef.h> |
63 | |
113 | |
64 | #include <stdio.h> |
114 | #include <stdio.h> |
65 | |
115 | |
66 | #include <assert.h> |
116 | #include <assert.h> |
67 | #include <errno.h> |
117 | #include <errno.h> |
68 | #include <sys/types.h> |
118 | #include <sys/types.h> |
|
|
119 | #include <time.h> |
|
|
120 | |
|
|
121 | #include <signal.h> |
|
|
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
|
|
128 | |
69 | #ifndef WIN32 |
129 | #ifndef _WIN32 |
|
|
130 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
|
|
132 | # include <unistd.h> |
|
|
133 | #else |
|
|
134 | # define WIN32_LEAN_AND_MEAN |
|
|
135 | # include <windows.h> |
|
|
136 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
137 | # define EV_SELECT_IS_WINSOCKET 1 |
71 | #endif |
138 | # endif |
72 | #include <sys/time.h> |
139 | #endif |
73 | #include <time.h> |
|
|
74 | |
140 | |
75 | /**/ |
141 | /**/ |
76 | |
142 | |
77 | #ifndef EV_USE_MONOTONIC |
143 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
144 | # define EV_USE_MONOTONIC 0 |
|
|
145 | #endif |
|
|
146 | |
|
|
147 | #ifndef EV_USE_REALTIME |
|
|
148 | # define EV_USE_REALTIME 0 |
79 | #endif |
149 | #endif |
80 | |
150 | |
81 | #ifndef EV_USE_SELECT |
151 | #ifndef EV_USE_SELECT |
82 | # define EV_USE_SELECT 1 |
152 | # define EV_USE_SELECT 1 |
83 | #endif |
153 | #endif |
84 | |
154 | |
85 | #ifndef EV_USE_POLL |
155 | #ifndef EV_USE_POLL |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
156 | # ifdef _WIN32 |
|
|
157 | # define EV_USE_POLL 0 |
|
|
158 | # else |
|
|
159 | # define EV_USE_POLL 1 |
|
|
160 | # endif |
87 | #endif |
161 | #endif |
88 | |
162 | |
89 | #ifndef EV_USE_EPOLL |
163 | #ifndef EV_USE_EPOLL |
90 | # define EV_USE_EPOLL 0 |
164 | # define EV_USE_EPOLL 0 |
91 | #endif |
165 | #endif |
92 | |
166 | |
93 | #ifndef EV_USE_KQUEUE |
167 | #ifndef EV_USE_KQUEUE |
94 | # define EV_USE_KQUEUE 0 |
168 | # define EV_USE_KQUEUE 0 |
95 | #endif |
169 | #endif |
96 | |
170 | |
97 | #ifndef EV_USE_REALTIME |
171 | #ifndef EV_USE_PORT |
98 | # define EV_USE_REALTIME 1 |
172 | # define EV_USE_PORT 0 |
|
|
173 | #endif |
|
|
174 | |
|
|
175 | #ifndef EV_USE_INOTIFY |
|
|
176 | # define EV_USE_INOTIFY 0 |
|
|
177 | #endif |
|
|
178 | |
|
|
179 | #ifndef EV_PID_HASHSIZE |
|
|
180 | # if EV_MINIMAL |
|
|
181 | # define EV_PID_HASHSIZE 1 |
|
|
182 | # else |
|
|
183 | # define EV_PID_HASHSIZE 16 |
|
|
184 | # endif |
|
|
185 | #endif |
|
|
186 | |
|
|
187 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
188 | # if EV_MINIMAL |
|
|
189 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
190 | # else |
|
|
191 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
192 | # endif |
99 | #endif |
193 | #endif |
100 | |
194 | |
101 | /**/ |
195 | /**/ |
102 | |
196 | |
103 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
108 | #ifndef CLOCK_REALTIME |
202 | #ifndef CLOCK_REALTIME |
109 | # undef EV_USE_REALTIME |
203 | # undef EV_USE_REALTIME |
110 | # define EV_USE_REALTIME 0 |
204 | # define EV_USE_REALTIME 0 |
111 | #endif |
205 | #endif |
112 | |
206 | |
|
|
207 | #if EV_SELECT_IS_WINSOCKET |
|
|
208 | # include <winsock.h> |
|
|
209 | #endif |
|
|
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
113 | /**/ |
219 | /**/ |
114 | |
220 | |
115 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
116 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
117 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
118 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
119 | |
|
|
120 | #include "ev.h" |
|
|
121 | |
224 | |
122 | #if __GNUC__ >= 3 |
225 | #if __GNUC__ >= 3 |
123 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
124 | # define inline inline |
227 | # define noinline __attribute__ ((noinline)) |
125 | #else |
228 | #else |
126 | # define expect(expr,value) (expr) |
229 | # define expect(expr,value) (expr) |
127 | # define inline static |
230 | # define noinline |
|
|
231 | # if __STDC_VERSION__ < 199901L |
|
|
232 | # define inline |
|
|
233 | # endif |
128 | #endif |
234 | #endif |
129 | |
235 | |
130 | #define expect_false(expr) expect ((expr) != 0, 0) |
236 | #define expect_false(expr) expect ((expr) != 0, 0) |
131 | #define expect_true(expr) expect ((expr) != 0, 1) |
237 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
238 | #define inline_size static inline |
|
|
239 | |
|
|
240 | #if EV_MINIMAL |
|
|
241 | # define inline_speed static noinline |
|
|
242 | #else |
|
|
243 | # define inline_speed static inline |
|
|
244 | #endif |
132 | |
245 | |
133 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
134 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
247 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
135 | |
248 | |
|
|
249 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
250 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
251 | |
136 | typedef struct ev_watcher *W; |
252 | typedef ev_watcher *W; |
137 | typedef struct ev_watcher_list *WL; |
253 | typedef ev_watcher_list *WL; |
138 | typedef struct ev_watcher_time *WT; |
254 | typedef ev_watcher_time *WT; |
139 | |
255 | |
140 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
256 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
141 | |
257 | |
|
|
258 | #ifdef _WIN32 |
|
|
259 | # include "ev_win32.c" |
|
|
260 | #endif |
|
|
261 | |
142 | /*****************************************************************************/ |
262 | /*****************************************************************************/ |
143 | |
263 | |
|
|
264 | static void (*syserr_cb)(const char *msg); |
|
|
265 | |
|
|
266 | void |
|
|
267 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
268 | { |
|
|
269 | syserr_cb = cb; |
|
|
270 | } |
|
|
271 | |
|
|
272 | static void noinline |
|
|
273 | syserr (const char *msg) |
|
|
274 | { |
|
|
275 | if (!msg) |
|
|
276 | msg = "(libev) system error"; |
|
|
277 | |
|
|
278 | if (syserr_cb) |
|
|
279 | syserr_cb (msg); |
|
|
280 | else |
|
|
281 | { |
|
|
282 | perror (msg); |
|
|
283 | abort (); |
|
|
284 | } |
|
|
285 | } |
|
|
286 | |
|
|
287 | static void *(*alloc)(void *ptr, long size); |
|
|
288 | |
|
|
289 | void |
|
|
290 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
291 | { |
|
|
292 | alloc = cb; |
|
|
293 | } |
|
|
294 | |
|
|
295 | inline_speed void * |
|
|
296 | ev_realloc (void *ptr, long size) |
|
|
297 | { |
|
|
298 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
299 | |
|
|
300 | if (!ptr && size) |
|
|
301 | { |
|
|
302 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
303 | abort (); |
|
|
304 | } |
|
|
305 | |
|
|
306 | return ptr; |
|
|
307 | } |
|
|
308 | |
|
|
309 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
310 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
311 | |
|
|
312 | /*****************************************************************************/ |
|
|
313 | |
144 | typedef struct |
314 | typedef struct |
145 | { |
315 | { |
146 | struct ev_watcher_list *head; |
316 | WL head; |
147 | unsigned char events; |
317 | unsigned char events; |
148 | unsigned char reify; |
318 | unsigned char reify; |
|
|
319 | #if EV_SELECT_IS_WINSOCKET |
|
|
320 | SOCKET handle; |
|
|
321 | #endif |
149 | } ANFD; |
322 | } ANFD; |
150 | |
323 | |
151 | typedef struct |
324 | typedef struct |
152 | { |
325 | { |
153 | W w; |
326 | W w; |
154 | int events; |
327 | int events; |
155 | } ANPENDING; |
328 | } ANPENDING; |
156 | |
329 | |
|
|
330 | #if EV_USE_INOTIFY |
|
|
331 | typedef struct |
|
|
332 | { |
|
|
333 | WL head; |
|
|
334 | } ANFS; |
|
|
335 | #endif |
|
|
336 | |
157 | #if EV_MULTIPLICITY |
337 | #if EV_MULTIPLICITY |
158 | |
338 | |
159 | struct ev_loop |
339 | struct ev_loop |
160 | { |
340 | { |
|
|
341 | ev_tstamp ev_rt_now; |
|
|
342 | #define ev_rt_now ((loop)->ev_rt_now) |
161 | # define VAR(name,decl) decl; |
343 | #define VAR(name,decl) decl; |
162 | # include "ev_vars.h" |
344 | #include "ev_vars.h" |
163 | }; |
|
|
164 | # undef VAR |
345 | #undef VAR |
|
|
346 | }; |
165 | # include "ev_wrap.h" |
347 | #include "ev_wrap.h" |
|
|
348 | |
|
|
349 | static struct ev_loop default_loop_struct; |
|
|
350 | struct ev_loop *ev_default_loop_ptr; |
166 | |
351 | |
167 | #else |
352 | #else |
168 | |
353 | |
|
|
354 | ev_tstamp ev_rt_now; |
169 | # define VAR(name,decl) static decl; |
355 | #define VAR(name,decl) static decl; |
170 | # include "ev_vars.h" |
356 | #include "ev_vars.h" |
171 | # undef VAR |
357 | #undef VAR |
|
|
358 | |
|
|
359 | static int ev_default_loop_ptr; |
172 | |
360 | |
173 | #endif |
361 | #endif |
174 | |
362 | |
175 | /*****************************************************************************/ |
363 | /*****************************************************************************/ |
176 | |
364 | |
177 | inline ev_tstamp |
365 | ev_tstamp |
178 | ev_time (void) |
366 | ev_time (void) |
179 | { |
367 | { |
180 | #if EV_USE_REALTIME |
368 | #if EV_USE_REALTIME |
181 | struct timespec ts; |
369 | struct timespec ts; |
182 | clock_gettime (CLOCK_REALTIME, &ts); |
370 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
186 | gettimeofday (&tv, 0); |
374 | gettimeofday (&tv, 0); |
187 | return tv.tv_sec + tv.tv_usec * 1e-6; |
375 | return tv.tv_sec + tv.tv_usec * 1e-6; |
188 | #endif |
376 | #endif |
189 | } |
377 | } |
190 | |
378 | |
191 | inline ev_tstamp |
379 | ev_tstamp inline_size |
192 | get_clock (void) |
380 | get_clock (void) |
193 | { |
381 | { |
194 | #if EV_USE_MONOTONIC |
382 | #if EV_USE_MONOTONIC |
195 | if (expect_true (have_monotonic)) |
383 | if (expect_true (have_monotonic)) |
196 | { |
384 | { |
… | |
… | |
201 | #endif |
389 | #endif |
202 | |
390 | |
203 | return ev_time (); |
391 | return ev_time (); |
204 | } |
392 | } |
205 | |
393 | |
|
|
394 | #if EV_MULTIPLICITY |
206 | ev_tstamp |
395 | ev_tstamp |
207 | ev_now (EV_P) |
396 | ev_now (EV_P) |
208 | { |
397 | { |
209 | return rt_now; |
398 | return ev_rt_now; |
210 | } |
399 | } |
|
|
400 | #endif |
211 | |
401 | |
212 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
402 | int inline_size |
|
|
403 | array_nextsize (int elem, int cur, int cnt) |
|
|
404 | { |
|
|
405 | int ncur = cur + 1; |
213 | |
406 | |
|
|
407 | do |
|
|
408 | ncur <<= 1; |
|
|
409 | while (cnt > ncur); |
|
|
410 | |
|
|
411 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
412 | if (elem * ncur > 4096) |
|
|
413 | { |
|
|
414 | ncur *= elem; |
|
|
415 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
416 | ncur = ncur - sizeof (void *) * 4; |
|
|
417 | ncur /= elem; |
|
|
418 | } |
|
|
419 | |
|
|
420 | return ncur; |
|
|
421 | } |
|
|
422 | |
|
|
423 | static noinline void * |
|
|
424 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
425 | { |
|
|
426 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
427 | return ev_realloc (base, elem * *cur); |
|
|
428 | } |
|
|
429 | |
214 | #define array_needsize(base,cur,cnt,init) \ |
430 | #define array_needsize(type,base,cur,cnt,init) \ |
215 | if (expect_false ((cnt) > cur)) \ |
431 | if (expect_false ((cnt) > (cur))) \ |
216 | { \ |
432 | { \ |
217 | int newcnt = cur; \ |
433 | int ocur_ = (cur); \ |
218 | do \ |
434 | (base) = (type *)array_realloc \ |
219 | { \ |
435 | (sizeof (type), (base), &(cur), (cnt)); \ |
220 | newcnt = array_roundsize (base, newcnt << 1); \ |
436 | init ((base) + (ocur_), (cur) - ocur_); \ |
221 | } \ |
437 | } |
222 | while ((cnt) > newcnt); \ |
438 | |
|
|
439 | #if 0 |
|
|
440 | #define array_slim(type,stem) \ |
|
|
441 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
223 | \ |
442 | { \ |
224 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
443 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
225 | init (base + cur, newcnt - cur); \ |
444 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
226 | cur = newcnt; \ |
445 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
227 | } |
446 | } |
|
|
447 | #endif |
|
|
448 | |
|
|
449 | #define array_free(stem, idx) \ |
|
|
450 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
228 | |
451 | |
229 | /*****************************************************************************/ |
452 | /*****************************************************************************/ |
230 | |
453 | |
231 | static void |
454 | void noinline |
|
|
455 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
456 | { |
|
|
457 | W w_ = (W)w; |
|
|
458 | int pri = ABSPRI (w_); |
|
|
459 | |
|
|
460 | if (expect_false (w_->pending)) |
|
|
461 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
462 | else |
|
|
463 | { |
|
|
464 | w_->pending = ++pendingcnt [pri]; |
|
|
465 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
466 | pendings [pri][w_->pending - 1].w = w_; |
|
|
467 | pendings [pri][w_->pending - 1].events = revents; |
|
|
468 | } |
|
|
469 | } |
|
|
470 | |
|
|
471 | void inline_size |
|
|
472 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
473 | { |
|
|
474 | int i; |
|
|
475 | |
|
|
476 | for (i = 0; i < eventcnt; ++i) |
|
|
477 | ev_feed_event (EV_A_ events [i], type); |
|
|
478 | } |
|
|
479 | |
|
|
480 | /*****************************************************************************/ |
|
|
481 | |
|
|
482 | void inline_size |
232 | anfds_init (ANFD *base, int count) |
483 | anfds_init (ANFD *base, int count) |
233 | { |
484 | { |
234 | while (count--) |
485 | while (count--) |
235 | { |
486 | { |
236 | base->head = 0; |
487 | base->head = 0; |
… | |
… | |
239 | |
490 | |
240 | ++base; |
491 | ++base; |
241 | } |
492 | } |
242 | } |
493 | } |
243 | |
494 | |
244 | static void |
495 | void inline_speed |
245 | event (EV_P_ W w, int events) |
|
|
246 | { |
|
|
247 | if (w->pending) |
|
|
248 | { |
|
|
249 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
250 | return; |
|
|
251 | } |
|
|
252 | |
|
|
253 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
254 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
255 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
256 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
257 | } |
|
|
258 | |
|
|
259 | static void |
|
|
260 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
261 | { |
|
|
262 | int i; |
|
|
263 | |
|
|
264 | for (i = 0; i < eventcnt; ++i) |
|
|
265 | event (EV_A_ events [i], type); |
|
|
266 | } |
|
|
267 | |
|
|
268 | static void |
|
|
269 | fd_event (EV_P_ int fd, int events) |
496 | fd_event (EV_P_ int fd, int revents) |
270 | { |
497 | { |
271 | ANFD *anfd = anfds + fd; |
498 | ANFD *anfd = anfds + fd; |
272 | struct ev_io *w; |
499 | ev_io *w; |
273 | |
500 | |
274 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
501 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
275 | { |
502 | { |
276 | int ev = w->events & events; |
503 | int ev = w->events & revents; |
277 | |
504 | |
278 | if (ev) |
505 | if (ev) |
279 | event (EV_A_ (W)w, ev); |
506 | ev_feed_event (EV_A_ (W)w, ev); |
280 | } |
507 | } |
281 | } |
508 | } |
282 | |
509 | |
283 | /*****************************************************************************/ |
510 | void |
|
|
511 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
512 | { |
|
|
513 | if (fd >= 0 && fd < anfdmax) |
|
|
514 | fd_event (EV_A_ fd, revents); |
|
|
515 | } |
284 | |
516 | |
285 | static void |
517 | void inline_size |
286 | fd_reify (EV_P) |
518 | fd_reify (EV_P) |
287 | { |
519 | { |
288 | int i; |
520 | int i; |
289 | |
521 | |
290 | for (i = 0; i < fdchangecnt; ++i) |
522 | for (i = 0; i < fdchangecnt; ++i) |
291 | { |
523 | { |
292 | int fd = fdchanges [i]; |
524 | int fd = fdchanges [i]; |
293 | ANFD *anfd = anfds + fd; |
525 | ANFD *anfd = anfds + fd; |
294 | struct ev_io *w; |
526 | ev_io *w; |
295 | |
527 | |
296 | int events = 0; |
528 | int events = 0; |
297 | |
529 | |
298 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
530 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
299 | events |= w->events; |
531 | events |= w->events; |
300 | |
532 | |
|
|
533 | #if EV_SELECT_IS_WINSOCKET |
|
|
534 | if (events) |
|
|
535 | { |
|
|
536 | unsigned long argp; |
|
|
537 | anfd->handle = _get_osfhandle (fd); |
|
|
538 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
539 | } |
|
|
540 | #endif |
|
|
541 | |
301 | anfd->reify = 0; |
542 | anfd->reify = 0; |
302 | |
543 | |
303 | if (anfd->events != events) |
|
|
304 | { |
|
|
305 | method_modify (EV_A_ fd, anfd->events, events); |
544 | backend_modify (EV_A_ fd, anfd->events, events); |
306 | anfd->events = events; |
545 | anfd->events = events; |
307 | } |
|
|
308 | } |
546 | } |
309 | |
547 | |
310 | fdchangecnt = 0; |
548 | fdchangecnt = 0; |
311 | } |
549 | } |
312 | |
550 | |
313 | static void |
551 | void inline_size |
314 | fd_change (EV_P_ int fd) |
552 | fd_change (EV_P_ int fd) |
315 | { |
553 | { |
316 | if (anfds [fd].reify || fdchangecnt < 0) |
554 | if (expect_false (anfds [fd].reify)) |
317 | return; |
555 | return; |
318 | |
556 | |
319 | anfds [fd].reify = 1; |
557 | anfds [fd].reify = 1; |
320 | |
558 | |
321 | ++fdchangecnt; |
559 | ++fdchangecnt; |
322 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
560 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
323 | fdchanges [fdchangecnt - 1] = fd; |
561 | fdchanges [fdchangecnt - 1] = fd; |
324 | } |
562 | } |
325 | |
563 | |
326 | static void |
564 | void inline_speed |
327 | fd_kill (EV_P_ int fd) |
565 | fd_kill (EV_P_ int fd) |
328 | { |
566 | { |
329 | struct ev_io *w; |
567 | ev_io *w; |
330 | |
568 | |
331 | while ((w = (struct ev_io *)anfds [fd].head)) |
569 | while ((w = (ev_io *)anfds [fd].head)) |
332 | { |
570 | { |
333 | ev_io_stop (EV_A_ w); |
571 | ev_io_stop (EV_A_ w); |
334 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
572 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
335 | } |
573 | } |
|
|
574 | } |
|
|
575 | |
|
|
576 | int inline_size |
|
|
577 | fd_valid (int fd) |
|
|
578 | { |
|
|
579 | #ifdef _WIN32 |
|
|
580 | return _get_osfhandle (fd) != -1; |
|
|
581 | #else |
|
|
582 | return fcntl (fd, F_GETFD) != -1; |
|
|
583 | #endif |
336 | } |
584 | } |
337 | |
585 | |
338 | /* called on EBADF to verify fds */ |
586 | /* called on EBADF to verify fds */ |
339 | static void |
587 | static void noinline |
340 | fd_ebadf (EV_P) |
588 | fd_ebadf (EV_P) |
341 | { |
589 | { |
342 | int fd; |
590 | int fd; |
343 | |
591 | |
344 | for (fd = 0; fd < anfdmax; ++fd) |
592 | for (fd = 0; fd < anfdmax; ++fd) |
345 | if (anfds [fd].events) |
593 | if (anfds [fd].events) |
346 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
594 | if (!fd_valid (fd) == -1 && errno == EBADF) |
347 | fd_kill (EV_A_ fd); |
595 | fd_kill (EV_A_ fd); |
348 | } |
596 | } |
349 | |
597 | |
350 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
598 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
351 | static void |
599 | static void noinline |
352 | fd_enomem (EV_P) |
600 | fd_enomem (EV_P) |
353 | { |
601 | { |
354 | int fd = anfdmax; |
602 | int fd; |
355 | |
603 | |
356 | while (fd--) |
604 | for (fd = anfdmax; fd--; ) |
357 | if (anfds [fd].events) |
605 | if (anfds [fd].events) |
358 | { |
606 | { |
359 | close (fd); |
|
|
360 | fd_kill (EV_A_ fd); |
607 | fd_kill (EV_A_ fd); |
361 | return; |
608 | return; |
362 | } |
609 | } |
363 | } |
610 | } |
364 | |
611 | |
365 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
612 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
366 | static void |
613 | static void noinline |
367 | fd_rearm_all (EV_P) |
614 | fd_rearm_all (EV_P) |
368 | { |
615 | { |
369 | int fd; |
616 | int fd; |
370 | |
617 | |
371 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
372 | for (fd = 0; fd < anfdmax; ++fd) |
618 | for (fd = 0; fd < anfdmax; ++fd) |
373 | if (anfds [fd].events) |
619 | if (anfds [fd].events) |
374 | { |
620 | { |
375 | anfds [fd].events = 0; |
621 | anfds [fd].events = 0; |
376 | fd_change (EV_A_ fd); |
622 | fd_change (EV_A_ fd); |
377 | } |
623 | } |
378 | } |
624 | } |
379 | |
625 | |
380 | /*****************************************************************************/ |
626 | /*****************************************************************************/ |
381 | |
627 | |
382 | static void |
628 | void inline_speed |
383 | upheap (WT *heap, int k) |
629 | upheap (WT *heap, int k) |
384 | { |
630 | { |
385 | WT w = heap [k]; |
631 | WT w = heap [k]; |
386 | |
632 | |
387 | while (k && heap [k >> 1]->at > w->at) |
633 | while (k && heap [k >> 1]->at > w->at) |
388 | { |
634 | { |
389 | heap [k] = heap [k >> 1]; |
635 | heap [k] = heap [k >> 1]; |
390 | heap [k]->active = k + 1; |
636 | ((W)heap [k])->active = k + 1; |
391 | k >>= 1; |
637 | k >>= 1; |
392 | } |
638 | } |
393 | |
639 | |
394 | heap [k] = w; |
640 | heap [k] = w; |
395 | heap [k]->active = k + 1; |
641 | ((W)heap [k])->active = k + 1; |
396 | |
642 | |
397 | } |
643 | } |
398 | |
644 | |
399 | static void |
645 | void inline_speed |
400 | downheap (WT *heap, int N, int k) |
646 | downheap (WT *heap, int N, int k) |
401 | { |
647 | { |
402 | WT w = heap [k]; |
648 | WT w = heap [k]; |
403 | |
649 | |
404 | while (k < (N >> 1)) |
650 | while (k < (N >> 1)) |
… | |
… | |
410 | |
656 | |
411 | if (w->at <= heap [j]->at) |
657 | if (w->at <= heap [j]->at) |
412 | break; |
658 | break; |
413 | |
659 | |
414 | heap [k] = heap [j]; |
660 | heap [k] = heap [j]; |
415 | heap [k]->active = k + 1; |
661 | ((W)heap [k])->active = k + 1; |
416 | k = j; |
662 | k = j; |
417 | } |
663 | } |
418 | |
664 | |
419 | heap [k] = w; |
665 | heap [k] = w; |
420 | heap [k]->active = k + 1; |
666 | ((W)heap [k])->active = k + 1; |
|
|
667 | } |
|
|
668 | |
|
|
669 | void inline_size |
|
|
670 | adjustheap (WT *heap, int N, int k) |
|
|
671 | { |
|
|
672 | upheap (heap, k); |
|
|
673 | downheap (heap, N, k); |
421 | } |
674 | } |
422 | |
675 | |
423 | /*****************************************************************************/ |
676 | /*****************************************************************************/ |
424 | |
677 | |
425 | typedef struct |
678 | typedef struct |
426 | { |
679 | { |
427 | struct ev_watcher_list *head; |
680 | WL head; |
428 | sig_atomic_t volatile gotsig; |
681 | sig_atomic_t volatile gotsig; |
429 | } ANSIG; |
682 | } ANSIG; |
430 | |
683 | |
431 | static ANSIG *signals; |
684 | static ANSIG *signals; |
432 | static int signalmax; |
685 | static int signalmax; |
433 | |
686 | |
434 | static int sigpipe [2]; |
687 | static int sigpipe [2]; |
435 | static sig_atomic_t volatile gotsig; |
688 | static sig_atomic_t volatile gotsig; |
436 | static struct ev_io sigev; |
689 | static ev_io sigev; |
437 | |
690 | |
438 | static void |
691 | void inline_size |
439 | signals_init (ANSIG *base, int count) |
692 | signals_init (ANSIG *base, int count) |
440 | { |
693 | { |
441 | while (count--) |
694 | while (count--) |
442 | { |
695 | { |
443 | base->head = 0; |
696 | base->head = 0; |
… | |
… | |
448 | } |
701 | } |
449 | |
702 | |
450 | static void |
703 | static void |
451 | sighandler (int signum) |
704 | sighandler (int signum) |
452 | { |
705 | { |
|
|
706 | #if _WIN32 |
|
|
707 | signal (signum, sighandler); |
|
|
708 | #endif |
|
|
709 | |
453 | signals [signum - 1].gotsig = 1; |
710 | signals [signum - 1].gotsig = 1; |
454 | |
711 | |
455 | if (!gotsig) |
712 | if (!gotsig) |
456 | { |
713 | { |
457 | int old_errno = errno; |
714 | int old_errno = errno; |
… | |
… | |
459 | write (sigpipe [1], &signum, 1); |
716 | write (sigpipe [1], &signum, 1); |
460 | errno = old_errno; |
717 | errno = old_errno; |
461 | } |
718 | } |
462 | } |
719 | } |
463 | |
720 | |
|
|
721 | void noinline |
|
|
722 | ev_feed_signal_event (EV_P_ int signum) |
|
|
723 | { |
|
|
724 | WL w; |
|
|
725 | |
|
|
726 | #if EV_MULTIPLICITY |
|
|
727 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
728 | #endif |
|
|
729 | |
|
|
730 | --signum; |
|
|
731 | |
|
|
732 | if (signum < 0 || signum >= signalmax) |
|
|
733 | return; |
|
|
734 | |
|
|
735 | signals [signum].gotsig = 0; |
|
|
736 | |
|
|
737 | for (w = signals [signum].head; w; w = w->next) |
|
|
738 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
739 | } |
|
|
740 | |
464 | static void |
741 | static void |
465 | sigcb (EV_P_ struct ev_io *iow, int revents) |
742 | sigcb (EV_P_ ev_io *iow, int revents) |
466 | { |
743 | { |
467 | struct ev_watcher_list *w; |
|
|
468 | int signum; |
744 | int signum; |
469 | |
745 | |
470 | read (sigpipe [0], &revents, 1); |
746 | read (sigpipe [0], &revents, 1); |
471 | gotsig = 0; |
747 | gotsig = 0; |
472 | |
748 | |
473 | for (signum = signalmax; signum--; ) |
749 | for (signum = signalmax; signum--; ) |
474 | if (signals [signum].gotsig) |
750 | if (signals [signum].gotsig) |
475 | { |
751 | ev_feed_signal_event (EV_A_ signum + 1); |
476 | signals [signum].gotsig = 0; |
|
|
477 | |
|
|
478 | for (w = signals [signum].head; w; w = w->next) |
|
|
479 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
480 | } |
|
|
481 | } |
752 | } |
482 | |
753 | |
483 | static void |
754 | void inline_speed |
|
|
755 | fd_intern (int fd) |
|
|
756 | { |
|
|
757 | #ifdef _WIN32 |
|
|
758 | int arg = 1; |
|
|
759 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
760 | #else |
|
|
761 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
762 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
763 | #endif |
|
|
764 | } |
|
|
765 | |
|
|
766 | static void noinline |
484 | siginit (EV_P) |
767 | siginit (EV_P) |
485 | { |
768 | { |
486 | #ifndef WIN32 |
769 | fd_intern (sigpipe [0]); |
487 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
770 | fd_intern (sigpipe [1]); |
488 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
489 | |
|
|
490 | /* rather than sort out wether we really need nb, set it */ |
|
|
491 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
492 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
493 | #endif |
|
|
494 | |
771 | |
495 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
772 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
496 | ev_io_start (EV_A_ &sigev); |
773 | ev_io_start (EV_A_ &sigev); |
497 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
774 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
498 | } |
775 | } |
499 | |
776 | |
500 | /*****************************************************************************/ |
777 | /*****************************************************************************/ |
501 | |
778 | |
|
|
779 | static ev_child *childs [EV_PID_HASHSIZE]; |
|
|
780 | |
502 | #ifndef WIN32 |
781 | #ifndef _WIN32 |
503 | |
782 | |
504 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
505 | static struct ev_signal childev; |
783 | static ev_signal childev; |
|
|
784 | |
|
|
785 | void inline_speed |
|
|
786 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
787 | { |
|
|
788 | ev_child *w; |
|
|
789 | |
|
|
790 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
791 | if (w->pid == pid || !w->pid) |
|
|
792 | { |
|
|
793 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
|
|
794 | w->rpid = pid; |
|
|
795 | w->rstatus = status; |
|
|
796 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
797 | } |
|
|
798 | } |
506 | |
799 | |
507 | #ifndef WCONTINUED |
800 | #ifndef WCONTINUED |
508 | # define WCONTINUED 0 |
801 | # define WCONTINUED 0 |
509 | #endif |
802 | #endif |
510 | |
803 | |
511 | static void |
804 | static void |
512 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
513 | { |
|
|
514 | struct ev_child *w; |
|
|
515 | |
|
|
516 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
517 | if (w->pid == pid || !w->pid) |
|
|
518 | { |
|
|
519 | w->priority = sw->priority; /* need to do it *now* */ |
|
|
520 | w->rpid = pid; |
|
|
521 | w->rstatus = status; |
|
|
522 | event (EV_A_ (W)w, EV_CHILD); |
|
|
523 | } |
|
|
524 | } |
|
|
525 | |
|
|
526 | static void |
|
|
527 | childcb (EV_P_ struct ev_signal *sw, int revents) |
805 | childcb (EV_P_ ev_signal *sw, int revents) |
528 | { |
806 | { |
529 | int pid, status; |
807 | int pid, status; |
530 | |
808 | |
|
|
809 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
531 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
810 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
532 | { |
811 | if (!WCONTINUED |
|
|
812 | || errno != EINVAL |
|
|
813 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
814 | return; |
|
|
815 | |
533 | /* make sure we are called again until all childs have been reaped */ |
816 | /* make sure we are called again until all childs have been reaped */ |
|
|
817 | /* we need to do it this way so that the callback gets called before we continue */ |
534 | event (EV_A_ (W)sw, EV_SIGNAL); |
818 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
535 | |
819 | |
536 | child_reap (EV_A_ sw, pid, pid, status); |
820 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
821 | if (EV_PID_HASHSIZE > 1) |
537 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
822 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
538 | } |
|
|
539 | } |
823 | } |
540 | |
824 | |
541 | #endif |
825 | #endif |
542 | |
826 | |
543 | /*****************************************************************************/ |
827 | /*****************************************************************************/ |
544 | |
828 | |
|
|
829 | #if EV_USE_PORT |
|
|
830 | # include "ev_port.c" |
|
|
831 | #endif |
545 | #if EV_USE_KQUEUE |
832 | #if EV_USE_KQUEUE |
546 | # include "ev_kqueue.c" |
833 | # include "ev_kqueue.c" |
547 | #endif |
834 | #endif |
548 | #if EV_USE_EPOLL |
835 | #if EV_USE_EPOLL |
549 | # include "ev_epoll.c" |
836 | # include "ev_epoll.c" |
… | |
… | |
566 | { |
853 | { |
567 | return EV_VERSION_MINOR; |
854 | return EV_VERSION_MINOR; |
568 | } |
855 | } |
569 | |
856 | |
570 | /* return true if we are running with elevated privileges and should ignore env variables */ |
857 | /* return true if we are running with elevated privileges and should ignore env variables */ |
571 | static int |
858 | int inline_size |
572 | enable_secure (void) |
859 | enable_secure (void) |
573 | { |
860 | { |
574 | #ifdef WIN32 |
861 | #ifdef _WIN32 |
575 | return 0; |
862 | return 0; |
576 | #else |
863 | #else |
577 | return getuid () != geteuid () |
864 | return getuid () != geteuid () |
578 | || getgid () != getegid (); |
865 | || getgid () != getegid (); |
579 | #endif |
866 | #endif |
580 | } |
867 | } |
581 | |
868 | |
582 | int |
869 | unsigned int |
583 | ev_method (EV_P) |
870 | ev_supported_backends (void) |
584 | { |
871 | { |
585 | return method; |
872 | unsigned int flags = 0; |
586 | } |
|
|
587 | |
873 | |
588 | static void |
874 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
589 | loop_init (EV_P_ int methods) |
875 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
876 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
877 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
878 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
879 | |
|
|
880 | return flags; |
|
|
881 | } |
|
|
882 | |
|
|
883 | unsigned int |
|
|
884 | ev_recommended_backends (void) |
590 | { |
885 | { |
591 | if (!method) |
886 | unsigned int flags = ev_supported_backends (); |
|
|
887 | |
|
|
888 | #ifndef __NetBSD__ |
|
|
889 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
890 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
891 | flags &= ~EVBACKEND_KQUEUE; |
|
|
892 | #endif |
|
|
893 | #ifdef __APPLE__ |
|
|
894 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
895 | flags &= ~EVBACKEND_POLL; |
|
|
896 | #endif |
|
|
897 | |
|
|
898 | return flags; |
|
|
899 | } |
|
|
900 | |
|
|
901 | unsigned int |
|
|
902 | ev_embeddable_backends (void) |
|
|
903 | { |
|
|
904 | return EVBACKEND_EPOLL |
|
|
905 | | EVBACKEND_KQUEUE |
|
|
906 | | EVBACKEND_PORT; |
|
|
907 | } |
|
|
908 | |
|
|
909 | unsigned int |
|
|
910 | ev_backend (EV_P) |
|
|
911 | { |
|
|
912 | return backend; |
|
|
913 | } |
|
|
914 | |
|
|
915 | unsigned int |
|
|
916 | ev_loop_count (EV_P) |
|
|
917 | { |
|
|
918 | return loop_count; |
|
|
919 | } |
|
|
920 | |
|
|
921 | static void noinline |
|
|
922 | loop_init (EV_P_ unsigned int flags) |
|
|
923 | { |
|
|
924 | if (!backend) |
592 | { |
925 | { |
593 | #if EV_USE_MONOTONIC |
926 | #if EV_USE_MONOTONIC |
594 | { |
927 | { |
595 | struct timespec ts; |
928 | struct timespec ts; |
596 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
929 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
597 | have_monotonic = 1; |
930 | have_monotonic = 1; |
598 | } |
931 | } |
599 | #endif |
932 | #endif |
600 | |
933 | |
601 | rt_now = ev_time (); |
934 | ev_rt_now = ev_time (); |
602 | mn_now = get_clock (); |
935 | mn_now = get_clock (); |
603 | now_floor = mn_now; |
936 | now_floor = mn_now; |
604 | rtmn_diff = rt_now - mn_now; |
937 | rtmn_diff = ev_rt_now - mn_now; |
605 | |
938 | |
606 | if (methods == EVMETHOD_AUTO) |
939 | /* pid check not overridable via env */ |
607 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
940 | #ifndef _WIN32 |
|
|
941 | if (flags & EVFLAG_FORKCHECK) |
|
|
942 | curpid = getpid (); |
|
|
943 | #endif |
|
|
944 | |
|
|
945 | if (!(flags & EVFLAG_NOENV) |
|
|
946 | && !enable_secure () |
|
|
947 | && getenv ("LIBEV_FLAGS")) |
608 | methods = atoi (getenv ("LIBEV_METHODS")); |
948 | flags = atoi (getenv ("LIBEV_FLAGS")); |
609 | else |
|
|
610 | methods = EVMETHOD_ANY; |
|
|
611 | |
949 | |
612 | method = 0; |
950 | if (!(flags & 0x0000ffffUL)) |
|
|
951 | flags |= ev_recommended_backends (); |
|
|
952 | |
|
|
953 | backend = 0; |
|
|
954 | backend_fd = -1; |
|
|
955 | #if EV_USE_INOTIFY |
|
|
956 | fs_fd = -2; |
|
|
957 | #endif |
|
|
958 | |
|
|
959 | #if EV_USE_PORT |
|
|
960 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
961 | #endif |
613 | #if EV_USE_KQUEUE |
962 | #if EV_USE_KQUEUE |
614 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
963 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
615 | #endif |
964 | #endif |
616 | #if EV_USE_EPOLL |
965 | #if EV_USE_EPOLL |
617 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
966 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
618 | #endif |
967 | #endif |
619 | #if EV_USE_POLL |
968 | #if EV_USE_POLL |
620 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
969 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
621 | #endif |
970 | #endif |
622 | #if EV_USE_SELECT |
971 | #if EV_USE_SELECT |
623 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
972 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
624 | #endif |
973 | #endif |
625 | } |
|
|
626 | } |
|
|
627 | |
974 | |
628 | void |
975 | ev_init (&sigev, sigcb); |
|
|
976 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
977 | } |
|
|
978 | } |
|
|
979 | |
|
|
980 | static void noinline |
629 | loop_destroy (EV_P) |
981 | loop_destroy (EV_P) |
630 | { |
982 | { |
|
|
983 | int i; |
|
|
984 | |
|
|
985 | #if EV_USE_INOTIFY |
|
|
986 | if (fs_fd >= 0) |
|
|
987 | close (fs_fd); |
|
|
988 | #endif |
|
|
989 | |
|
|
990 | if (backend_fd >= 0) |
|
|
991 | close (backend_fd); |
|
|
992 | |
|
|
993 | #if EV_USE_PORT |
|
|
994 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
995 | #endif |
631 | #if EV_USE_KQUEUE |
996 | #if EV_USE_KQUEUE |
632 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
997 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
633 | #endif |
998 | #endif |
634 | #if EV_USE_EPOLL |
999 | #if EV_USE_EPOLL |
635 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1000 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
636 | #endif |
1001 | #endif |
637 | #if EV_USE_POLL |
1002 | #if EV_USE_POLL |
638 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1003 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
639 | #endif |
1004 | #endif |
640 | #if EV_USE_SELECT |
1005 | #if EV_USE_SELECT |
641 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1006 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
642 | #endif |
1007 | #endif |
643 | |
1008 | |
644 | method = 0; |
1009 | for (i = NUMPRI; i--; ) |
645 | /*TODO*/ |
1010 | { |
646 | } |
1011 | array_free (pending, [i]); |
|
|
1012 | #if EV_IDLE_ENABLE |
|
|
1013 | array_free (idle, [i]); |
|
|
1014 | #endif |
|
|
1015 | } |
647 | |
1016 | |
648 | void |
1017 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1018 | array_free (fdchange, EMPTY); |
|
|
1019 | array_free (timer, EMPTY); |
|
|
1020 | #if EV_PERIODIC_ENABLE |
|
|
1021 | array_free (periodic, EMPTY); |
|
|
1022 | #endif |
|
|
1023 | array_free (prepare, EMPTY); |
|
|
1024 | array_free (check, EMPTY); |
|
|
1025 | |
|
|
1026 | backend = 0; |
|
|
1027 | } |
|
|
1028 | |
|
|
1029 | void inline_size infy_fork (EV_P); |
|
|
1030 | |
|
|
1031 | void inline_size |
649 | loop_fork (EV_P) |
1032 | loop_fork (EV_P) |
650 | { |
1033 | { |
651 | /*TODO*/ |
1034 | #if EV_USE_PORT |
|
|
1035 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1036 | #endif |
|
|
1037 | #if EV_USE_KQUEUE |
|
|
1038 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1039 | #endif |
652 | #if EV_USE_EPOLL |
1040 | #if EV_USE_EPOLL |
653 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1041 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
654 | #endif |
1042 | #endif |
655 | #if EV_USE_KQUEUE |
1043 | #if EV_USE_INOTIFY |
656 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1044 | infy_fork (EV_A); |
657 | #endif |
1045 | #endif |
|
|
1046 | |
|
|
1047 | if (ev_is_active (&sigev)) |
|
|
1048 | { |
|
|
1049 | /* default loop */ |
|
|
1050 | |
|
|
1051 | ev_ref (EV_A); |
|
|
1052 | ev_io_stop (EV_A_ &sigev); |
|
|
1053 | close (sigpipe [0]); |
|
|
1054 | close (sigpipe [1]); |
|
|
1055 | |
|
|
1056 | while (pipe (sigpipe)) |
|
|
1057 | syserr ("(libev) error creating pipe"); |
|
|
1058 | |
|
|
1059 | siginit (EV_A); |
|
|
1060 | } |
|
|
1061 | |
|
|
1062 | postfork = 0; |
658 | } |
1063 | } |
659 | |
1064 | |
660 | #if EV_MULTIPLICITY |
1065 | #if EV_MULTIPLICITY |
661 | struct ev_loop * |
1066 | struct ev_loop * |
662 | ev_loop_new (int methods) |
1067 | ev_loop_new (unsigned int flags) |
663 | { |
1068 | { |
664 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
1069 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
665 | |
1070 | |
|
|
1071 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1072 | |
666 | loop_init (EV_A_ methods); |
1073 | loop_init (EV_A_ flags); |
667 | |
1074 | |
668 | if (ev_method (EV_A)) |
1075 | if (ev_backend (EV_A)) |
669 | return loop; |
1076 | return loop; |
670 | |
1077 | |
671 | return 0; |
1078 | return 0; |
672 | } |
1079 | } |
673 | |
1080 | |
674 | void |
1081 | void |
675 | ev_loop_destroy (EV_P) |
1082 | ev_loop_destroy (EV_P) |
676 | { |
1083 | { |
677 | loop_destroy (EV_A); |
1084 | loop_destroy (EV_A); |
678 | free (loop); |
1085 | ev_free (loop); |
679 | } |
1086 | } |
680 | |
1087 | |
681 | void |
1088 | void |
682 | ev_loop_fork (EV_P) |
1089 | ev_loop_fork (EV_P) |
683 | { |
1090 | { |
684 | loop_fork (EV_A); |
1091 | postfork = 1; |
685 | } |
1092 | } |
686 | |
1093 | |
687 | #endif |
1094 | #endif |
688 | |
1095 | |
689 | #if EV_MULTIPLICITY |
1096 | #if EV_MULTIPLICITY |
690 | struct ev_loop default_loop_struct; |
|
|
691 | static struct ev_loop *default_loop; |
|
|
692 | |
|
|
693 | struct ev_loop * |
1097 | struct ev_loop * |
|
|
1098 | ev_default_loop_init (unsigned int flags) |
694 | #else |
1099 | #else |
695 | static int default_loop; |
|
|
696 | |
|
|
697 | int |
1100 | int |
|
|
1101 | ev_default_loop (unsigned int flags) |
698 | #endif |
1102 | #endif |
699 | ev_default_loop (int methods) |
|
|
700 | { |
1103 | { |
701 | if (sigpipe [0] == sigpipe [1]) |
1104 | if (sigpipe [0] == sigpipe [1]) |
702 | if (pipe (sigpipe)) |
1105 | if (pipe (sigpipe)) |
703 | return 0; |
1106 | return 0; |
704 | |
1107 | |
705 | if (!default_loop) |
1108 | if (!ev_default_loop_ptr) |
706 | { |
1109 | { |
707 | #if EV_MULTIPLICITY |
1110 | #if EV_MULTIPLICITY |
708 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1111 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
709 | #else |
1112 | #else |
710 | default_loop = 1; |
1113 | ev_default_loop_ptr = 1; |
711 | #endif |
1114 | #endif |
712 | |
1115 | |
713 | loop_init (EV_A_ methods); |
1116 | loop_init (EV_A_ flags); |
714 | |
1117 | |
715 | if (ev_method (EV_A)) |
1118 | if (ev_backend (EV_A)) |
716 | { |
1119 | { |
717 | ev_watcher_init (&sigev, sigcb); |
|
|
718 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
719 | siginit (EV_A); |
1120 | siginit (EV_A); |
720 | |
1121 | |
721 | #ifndef WIN32 |
1122 | #ifndef _WIN32 |
722 | ev_signal_init (&childev, childcb, SIGCHLD); |
1123 | ev_signal_init (&childev, childcb, SIGCHLD); |
723 | ev_set_priority (&childev, EV_MAXPRI); |
1124 | ev_set_priority (&childev, EV_MAXPRI); |
724 | ev_signal_start (EV_A_ &childev); |
1125 | ev_signal_start (EV_A_ &childev); |
725 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1126 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
726 | #endif |
1127 | #endif |
727 | } |
1128 | } |
728 | else |
1129 | else |
729 | default_loop = 0; |
1130 | ev_default_loop_ptr = 0; |
730 | } |
1131 | } |
731 | |
1132 | |
732 | return default_loop; |
1133 | return ev_default_loop_ptr; |
733 | } |
1134 | } |
734 | |
1135 | |
735 | void |
1136 | void |
736 | ev_default_destroy (void) |
1137 | ev_default_destroy (void) |
737 | { |
1138 | { |
738 | #if EV_MULTIPLICITY |
1139 | #if EV_MULTIPLICITY |
739 | struct ev_loop *loop = default_loop; |
1140 | struct ev_loop *loop = ev_default_loop_ptr; |
740 | #endif |
1141 | #endif |
741 | |
1142 | |
|
|
1143 | #ifndef _WIN32 |
742 | ev_ref (EV_A); /* child watcher */ |
1144 | ev_ref (EV_A); /* child watcher */ |
743 | ev_signal_stop (EV_A_ &childev); |
1145 | ev_signal_stop (EV_A_ &childev); |
|
|
1146 | #endif |
744 | |
1147 | |
745 | ev_ref (EV_A); /* signal watcher */ |
1148 | ev_ref (EV_A); /* signal watcher */ |
746 | ev_io_stop (EV_A_ &sigev); |
1149 | ev_io_stop (EV_A_ &sigev); |
747 | |
1150 | |
748 | close (sigpipe [0]); sigpipe [0] = 0; |
1151 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
753 | |
1156 | |
754 | void |
1157 | void |
755 | ev_default_fork (void) |
1158 | ev_default_fork (void) |
756 | { |
1159 | { |
757 | #if EV_MULTIPLICITY |
1160 | #if EV_MULTIPLICITY |
758 | struct ev_loop *loop = default_loop; |
1161 | struct ev_loop *loop = ev_default_loop_ptr; |
759 | #endif |
1162 | #endif |
760 | |
1163 | |
761 | loop_fork (EV_A); |
1164 | if (backend) |
762 | |
1165 | postfork = 1; |
763 | ev_io_stop (EV_A_ &sigev); |
|
|
764 | close (sigpipe [0]); |
|
|
765 | close (sigpipe [1]); |
|
|
766 | pipe (sigpipe); |
|
|
767 | |
|
|
768 | ev_ref (EV_A); /* signal watcher */ |
|
|
769 | siginit (EV_A); |
|
|
770 | } |
1166 | } |
771 | |
1167 | |
772 | /*****************************************************************************/ |
1168 | /*****************************************************************************/ |
773 | |
1169 | |
774 | static void |
1170 | void |
|
|
1171 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1172 | { |
|
|
1173 | EV_CB_INVOKE ((W)w, revents); |
|
|
1174 | } |
|
|
1175 | |
|
|
1176 | void inline_speed |
775 | call_pending (EV_P) |
1177 | call_pending (EV_P) |
776 | { |
1178 | { |
777 | int pri; |
1179 | int pri; |
778 | |
1180 | |
779 | for (pri = NUMPRI; pri--; ) |
1181 | for (pri = NUMPRI; pri--; ) |
780 | while (pendingcnt [pri]) |
1182 | while (pendingcnt [pri]) |
781 | { |
1183 | { |
782 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1184 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
783 | |
1185 | |
784 | if (p->w) |
1186 | if (expect_true (p->w)) |
785 | { |
1187 | { |
|
|
1188 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1189 | |
786 | p->w->pending = 0; |
1190 | p->w->pending = 0; |
787 | p->w->cb (EV_A_ p->w, p->events); |
1191 | EV_CB_INVOKE (p->w, p->events); |
788 | } |
1192 | } |
789 | } |
1193 | } |
790 | } |
1194 | } |
791 | |
1195 | |
792 | static void |
1196 | void inline_size |
793 | timers_reify (EV_P) |
1197 | timers_reify (EV_P) |
794 | { |
1198 | { |
795 | while (timercnt && timers [0]->at <= mn_now) |
1199 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
796 | { |
1200 | { |
797 | struct ev_timer *w = timers [0]; |
1201 | ev_timer *w = timers [0]; |
798 | |
1202 | |
799 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1203 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
800 | |
1204 | |
801 | /* first reschedule or stop timer */ |
1205 | /* first reschedule or stop timer */ |
802 | if (w->repeat) |
1206 | if (w->repeat) |
803 | { |
1207 | { |
804 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1208 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1209 | |
805 | w->at = mn_now + w->repeat; |
1210 | ((WT)w)->at += w->repeat; |
|
|
1211 | if (((WT)w)->at < mn_now) |
|
|
1212 | ((WT)w)->at = mn_now; |
|
|
1213 | |
806 | downheap ((WT *)timers, timercnt, 0); |
1214 | downheap ((WT *)timers, timercnt, 0); |
807 | } |
1215 | } |
808 | else |
1216 | else |
809 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1217 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
810 | |
1218 | |
811 | event (EV_A_ (W)w, EV_TIMEOUT); |
1219 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
812 | } |
1220 | } |
813 | } |
1221 | } |
814 | |
1222 | |
815 | static void |
1223 | #if EV_PERIODIC_ENABLE |
|
|
1224 | void inline_size |
816 | periodics_reify (EV_P) |
1225 | periodics_reify (EV_P) |
817 | { |
1226 | { |
818 | while (periodiccnt && periodics [0]->at <= rt_now) |
1227 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
819 | { |
1228 | { |
820 | struct ev_periodic *w = periodics [0]; |
1229 | ev_periodic *w = periodics [0]; |
821 | |
1230 | |
822 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1231 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
823 | |
1232 | |
824 | /* first reschedule or stop timer */ |
1233 | /* first reschedule or stop timer */ |
825 | if (w->interval) |
1234 | if (w->reschedule_cb) |
826 | { |
1235 | { |
|
|
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001220703125 /* 1/8192 */); |
|
|
1237 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1238 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1239 | } |
|
|
1240 | else if (w->interval) |
|
|
1241 | { |
827 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
1242 | ((WT)w)->at = w->offset + floor ((ev_rt_now - w->offset) / w->interval + 1.) * w->interval; |
828 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
1243 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
829 | downheap ((WT *)periodics, periodiccnt, 0); |
1244 | downheap ((WT *)periodics, periodiccnt, 0); |
830 | } |
1245 | } |
831 | else |
1246 | else |
832 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1247 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
833 | |
1248 | |
834 | event (EV_A_ (W)w, EV_PERIODIC); |
1249 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
835 | } |
1250 | } |
836 | } |
1251 | } |
837 | |
1252 | |
838 | static void |
1253 | static void noinline |
839 | periodics_reschedule (EV_P) |
1254 | periodics_reschedule (EV_P) |
840 | { |
1255 | { |
841 | int i; |
1256 | int i; |
842 | |
1257 | |
843 | /* adjust periodics after time jump */ |
1258 | /* adjust periodics after time jump */ |
844 | for (i = 0; i < periodiccnt; ++i) |
1259 | for (i = 0; i < periodiccnt; ++i) |
845 | { |
1260 | { |
846 | struct ev_periodic *w = periodics [i]; |
1261 | ev_periodic *w = periodics [i]; |
847 | |
1262 | |
|
|
1263 | if (w->reschedule_cb) |
|
|
1264 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
848 | if (w->interval) |
1265 | else if (w->interval) |
|
|
1266 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | /* now rebuild the heap */ |
|
|
1270 | for (i = periodiccnt >> 1; i--; ) |
|
|
1271 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1272 | } |
|
|
1273 | #endif |
|
|
1274 | |
|
|
1275 | #if EV_IDLE_ENABLE |
|
|
1276 | void inline_size |
|
|
1277 | idle_reify (EV_P) |
|
|
1278 | { |
|
|
1279 | if (expect_false (idleall)) |
|
|
1280 | { |
|
|
1281 | int pri; |
|
|
1282 | |
|
|
1283 | for (pri = NUMPRI; pri--; ) |
849 | { |
1284 | { |
850 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
1285 | if (pendingcnt [pri]) |
|
|
1286 | break; |
851 | |
1287 | |
852 | if (fabs (diff) >= 1e-4) |
1288 | if (idlecnt [pri]) |
853 | { |
1289 | { |
854 | ev_periodic_stop (EV_A_ w); |
1290 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
855 | ev_periodic_start (EV_A_ w); |
1291 | break; |
856 | |
|
|
857 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
858 | } |
1292 | } |
859 | } |
1293 | } |
860 | } |
1294 | } |
861 | } |
1295 | } |
|
|
1296 | #endif |
862 | |
1297 | |
863 | inline int |
1298 | int inline_size |
864 | time_update_monotonic (EV_P) |
1299 | time_update_monotonic (EV_P) |
865 | { |
1300 | { |
866 | mn_now = get_clock (); |
1301 | mn_now = get_clock (); |
867 | |
1302 | |
868 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1303 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
869 | { |
1304 | { |
870 | rt_now = rtmn_diff + mn_now; |
1305 | ev_rt_now = rtmn_diff + mn_now; |
871 | return 0; |
1306 | return 0; |
872 | } |
1307 | } |
873 | else |
1308 | else |
874 | { |
1309 | { |
875 | now_floor = mn_now; |
1310 | now_floor = mn_now; |
876 | rt_now = ev_time (); |
1311 | ev_rt_now = ev_time (); |
877 | return 1; |
1312 | return 1; |
878 | } |
1313 | } |
879 | } |
1314 | } |
880 | |
1315 | |
881 | static void |
1316 | void inline_size |
882 | time_update (EV_P) |
1317 | time_update (EV_P) |
883 | { |
1318 | { |
884 | int i; |
1319 | int i; |
885 | |
1320 | |
886 | #if EV_USE_MONOTONIC |
1321 | #if EV_USE_MONOTONIC |
… | |
… | |
888 | { |
1323 | { |
889 | if (time_update_monotonic (EV_A)) |
1324 | if (time_update_monotonic (EV_A)) |
890 | { |
1325 | { |
891 | ev_tstamp odiff = rtmn_diff; |
1326 | ev_tstamp odiff = rtmn_diff; |
892 | |
1327 | |
893 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1328 | /* loop a few times, before making important decisions. |
|
|
1329 | * on the choice of "4": one iteration isn't enough, |
|
|
1330 | * in case we get preempted during the calls to |
|
|
1331 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1332 | * to succeed in that case, though. and looping a few more times |
|
|
1333 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1334 | * in the unlikely event of having been preempted here. |
|
|
1335 | */ |
|
|
1336 | for (i = 4; --i; ) |
894 | { |
1337 | { |
895 | rtmn_diff = rt_now - mn_now; |
1338 | rtmn_diff = ev_rt_now - mn_now; |
896 | |
1339 | |
897 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1340 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
898 | return; /* all is well */ |
1341 | return; /* all is well */ |
899 | |
1342 | |
900 | rt_now = ev_time (); |
1343 | ev_rt_now = ev_time (); |
901 | mn_now = get_clock (); |
1344 | mn_now = get_clock (); |
902 | now_floor = mn_now; |
1345 | now_floor = mn_now; |
903 | } |
1346 | } |
904 | |
1347 | |
|
|
1348 | # if EV_PERIODIC_ENABLE |
905 | periodics_reschedule (EV_A); |
1349 | periodics_reschedule (EV_A); |
|
|
1350 | # endif |
906 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1351 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
907 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1352 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
908 | } |
1353 | } |
909 | } |
1354 | } |
910 | else |
1355 | else |
911 | #endif |
1356 | #endif |
912 | { |
1357 | { |
913 | rt_now = ev_time (); |
1358 | ev_rt_now = ev_time (); |
914 | |
1359 | |
915 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1360 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
916 | { |
1361 | { |
|
|
1362 | #if EV_PERIODIC_ENABLE |
917 | periodics_reschedule (EV_A); |
1363 | periodics_reschedule (EV_A); |
|
|
1364 | #endif |
918 | |
1365 | |
919 | /* adjust timers. this is easy, as the offset is the same for all */ |
1366 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
920 | for (i = 0; i < timercnt; ++i) |
1367 | for (i = 0; i < timercnt; ++i) |
921 | timers [i]->at += rt_now - mn_now; |
1368 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
922 | } |
1369 | } |
923 | |
1370 | |
924 | mn_now = rt_now; |
1371 | mn_now = ev_rt_now; |
925 | } |
1372 | } |
926 | } |
1373 | } |
927 | |
1374 | |
928 | void |
1375 | void |
929 | ev_ref (EV_P) |
1376 | ev_ref (EV_P) |
… | |
… | |
940 | static int loop_done; |
1387 | static int loop_done; |
941 | |
1388 | |
942 | void |
1389 | void |
943 | ev_loop (EV_P_ int flags) |
1390 | ev_loop (EV_P_ int flags) |
944 | { |
1391 | { |
945 | double block; |
|
|
946 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1392 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1393 | ? EVUNLOOP_ONE |
|
|
1394 | : EVUNLOOP_CANCEL; |
|
|
1395 | |
|
|
1396 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
947 | |
1397 | |
948 | do |
1398 | do |
949 | { |
1399 | { |
|
|
1400 | #ifndef _WIN32 |
|
|
1401 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1402 | if (expect_false (getpid () != curpid)) |
|
|
1403 | { |
|
|
1404 | curpid = getpid (); |
|
|
1405 | postfork = 1; |
|
|
1406 | } |
|
|
1407 | #endif |
|
|
1408 | |
|
|
1409 | #if EV_FORK_ENABLE |
|
|
1410 | /* we might have forked, so queue fork handlers */ |
|
|
1411 | if (expect_false (postfork)) |
|
|
1412 | if (forkcnt) |
|
|
1413 | { |
|
|
1414 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1415 | call_pending (EV_A); |
|
|
1416 | } |
|
|
1417 | #endif |
|
|
1418 | |
950 | /* queue check watchers (and execute them) */ |
1419 | /* queue prepare watchers (and execute them) */ |
951 | if (expect_false (preparecnt)) |
1420 | if (expect_false (preparecnt)) |
952 | { |
1421 | { |
953 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1422 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
954 | call_pending (EV_A); |
1423 | call_pending (EV_A); |
955 | } |
1424 | } |
956 | |
1425 | |
|
|
1426 | if (expect_false (!activecnt)) |
|
|
1427 | break; |
|
|
1428 | |
|
|
1429 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1430 | if (expect_false (postfork)) |
|
|
1431 | loop_fork (EV_A); |
|
|
1432 | |
957 | /* update fd-related kernel structures */ |
1433 | /* update fd-related kernel structures */ |
958 | fd_reify (EV_A); |
1434 | fd_reify (EV_A); |
959 | |
1435 | |
960 | /* calculate blocking time */ |
1436 | /* calculate blocking time */ |
|
|
1437 | { |
|
|
1438 | ev_tstamp block; |
961 | |
1439 | |
962 | /* we only need this for !monotonic clockor timers, but as we basically |
1440 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
963 | always have timers, we just calculate it always */ |
1441 | block = 0.; /* do not block at all */ |
|
|
1442 | else |
|
|
1443 | { |
|
|
1444 | /* update time to cancel out callback processing overhead */ |
964 | #if EV_USE_MONOTONIC |
1445 | #if EV_USE_MONOTONIC |
965 | if (expect_true (have_monotonic)) |
1446 | if (expect_true (have_monotonic)) |
966 | time_update_monotonic (EV_A); |
1447 | time_update_monotonic (EV_A); |
967 | else |
1448 | else |
968 | #endif |
1449 | #endif |
969 | { |
1450 | { |
970 | rt_now = ev_time (); |
1451 | ev_rt_now = ev_time (); |
971 | mn_now = rt_now; |
1452 | mn_now = ev_rt_now; |
972 | } |
1453 | } |
973 | |
1454 | |
974 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
975 | block = 0.; |
|
|
976 | else |
|
|
977 | { |
|
|
978 | block = MAX_BLOCKTIME; |
1455 | block = MAX_BLOCKTIME; |
979 | |
1456 | |
980 | if (timercnt) |
1457 | if (timercnt) |
981 | { |
1458 | { |
982 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
1459 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
983 | if (block > to) block = to; |
1460 | if (block > to) block = to; |
984 | } |
1461 | } |
985 | |
1462 | |
|
|
1463 | #if EV_PERIODIC_ENABLE |
986 | if (periodiccnt) |
1464 | if (periodiccnt) |
987 | { |
1465 | { |
988 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
1466 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
989 | if (block > to) block = to; |
1467 | if (block > to) block = to; |
990 | } |
1468 | } |
|
|
1469 | #endif |
991 | |
1470 | |
992 | if (block < 0.) block = 0.; |
1471 | if (expect_false (block < 0.)) block = 0.; |
993 | } |
1472 | } |
994 | |
1473 | |
|
|
1474 | ++loop_count; |
995 | method_poll (EV_A_ block); |
1475 | backend_poll (EV_A_ block); |
|
|
1476 | } |
996 | |
1477 | |
997 | /* update rt_now, do magic */ |
1478 | /* update ev_rt_now, do magic */ |
998 | time_update (EV_A); |
1479 | time_update (EV_A); |
999 | |
1480 | |
1000 | /* queue pending timers and reschedule them */ |
1481 | /* queue pending timers and reschedule them */ |
1001 | timers_reify (EV_A); /* relative timers called last */ |
1482 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1483 | #if EV_PERIODIC_ENABLE |
1002 | periodics_reify (EV_A); /* absolute timers called first */ |
1484 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1485 | #endif |
1003 | |
1486 | |
|
|
1487 | #if EV_IDLE_ENABLE |
1004 | /* queue idle watchers unless io or timers are pending */ |
1488 | /* queue idle watchers unless other events are pending */ |
1005 | if (!pendingcnt) |
1489 | idle_reify (EV_A); |
1006 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1490 | #endif |
1007 | |
1491 | |
1008 | /* queue check watchers, to be executed first */ |
1492 | /* queue check watchers, to be executed first */ |
1009 | if (checkcnt) |
1493 | if (expect_false (checkcnt)) |
1010 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1494 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1011 | |
1495 | |
1012 | call_pending (EV_A); |
1496 | call_pending (EV_A); |
|
|
1497 | |
1013 | } |
1498 | } |
1014 | while (activecnt && !loop_done); |
1499 | while (expect_true (activecnt && !loop_done)); |
1015 | |
1500 | |
1016 | if (loop_done != 2) |
1501 | if (loop_done == EVUNLOOP_ONE) |
1017 | loop_done = 0; |
1502 | loop_done = EVUNLOOP_CANCEL; |
1018 | } |
1503 | } |
1019 | |
1504 | |
1020 | void |
1505 | void |
1021 | ev_unloop (EV_P_ int how) |
1506 | ev_unloop (EV_P_ int how) |
1022 | { |
1507 | { |
1023 | loop_done = how; |
1508 | loop_done = how; |
1024 | } |
1509 | } |
1025 | |
1510 | |
1026 | /*****************************************************************************/ |
1511 | /*****************************************************************************/ |
1027 | |
1512 | |
1028 | inline void |
1513 | void inline_size |
1029 | wlist_add (WL *head, WL elem) |
1514 | wlist_add (WL *head, WL elem) |
1030 | { |
1515 | { |
1031 | elem->next = *head; |
1516 | elem->next = *head; |
1032 | *head = elem; |
1517 | *head = elem; |
1033 | } |
1518 | } |
1034 | |
1519 | |
1035 | inline void |
1520 | void inline_size |
1036 | wlist_del (WL *head, WL elem) |
1521 | wlist_del (WL *head, WL elem) |
1037 | { |
1522 | { |
1038 | while (*head) |
1523 | while (*head) |
1039 | { |
1524 | { |
1040 | if (*head == elem) |
1525 | if (*head == elem) |
… | |
… | |
1045 | |
1530 | |
1046 | head = &(*head)->next; |
1531 | head = &(*head)->next; |
1047 | } |
1532 | } |
1048 | } |
1533 | } |
1049 | |
1534 | |
1050 | inline void |
1535 | void inline_speed |
1051 | ev_clear_pending (EV_P_ W w) |
1536 | clear_pending (EV_P_ W w) |
1052 | { |
1537 | { |
1053 | if (w->pending) |
1538 | if (w->pending) |
1054 | { |
1539 | { |
1055 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1540 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1056 | w->pending = 0; |
1541 | w->pending = 0; |
1057 | } |
1542 | } |
1058 | } |
1543 | } |
1059 | |
1544 | |
1060 | inline void |
1545 | int |
|
|
1546 | ev_clear_pending (EV_P_ void *w) |
|
|
1547 | { |
|
|
1548 | W w_ = (W)w; |
|
|
1549 | int pending = w_->pending; |
|
|
1550 | |
|
|
1551 | if (expect_true (pending)) |
|
|
1552 | { |
|
|
1553 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1554 | w_->pending = 0; |
|
|
1555 | p->w = 0; |
|
|
1556 | return p->events; |
|
|
1557 | } |
|
|
1558 | else |
|
|
1559 | return 0; |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | void inline_size |
|
|
1563 | pri_adjust (EV_P_ W w) |
|
|
1564 | { |
|
|
1565 | int pri = w->priority; |
|
|
1566 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1567 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1568 | w->priority = pri; |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | void inline_speed |
1061 | ev_start (EV_P_ W w, int active) |
1572 | ev_start (EV_P_ W w, int active) |
1062 | { |
1573 | { |
1063 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1574 | pri_adjust (EV_A_ w); |
1064 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1065 | |
|
|
1066 | w->active = active; |
1575 | w->active = active; |
1067 | ev_ref (EV_A); |
1576 | ev_ref (EV_A); |
1068 | } |
1577 | } |
1069 | |
1578 | |
1070 | inline void |
1579 | void inline_size |
1071 | ev_stop (EV_P_ W w) |
1580 | ev_stop (EV_P_ W w) |
1072 | { |
1581 | { |
1073 | ev_unref (EV_A); |
1582 | ev_unref (EV_A); |
1074 | w->active = 0; |
1583 | w->active = 0; |
1075 | } |
1584 | } |
1076 | |
1585 | |
1077 | /*****************************************************************************/ |
1586 | /*****************************************************************************/ |
1078 | |
1587 | |
1079 | void |
1588 | void noinline |
1080 | ev_io_start (EV_P_ struct ev_io *w) |
1589 | ev_io_start (EV_P_ ev_io *w) |
1081 | { |
1590 | { |
1082 | int fd = w->fd; |
1591 | int fd = w->fd; |
1083 | |
1592 | |
1084 | if (ev_is_active (w)) |
1593 | if (expect_false (ev_is_active (w))) |
1085 | return; |
1594 | return; |
1086 | |
1595 | |
1087 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1596 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1088 | |
1597 | |
1089 | ev_start (EV_A_ (W)w, 1); |
1598 | ev_start (EV_A_ (W)w, 1); |
1090 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1599 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1091 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1600 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1092 | |
1601 | |
1093 | fd_change (EV_A_ fd); |
1602 | fd_change (EV_A_ fd); |
1094 | } |
1603 | } |
1095 | |
1604 | |
1096 | void |
1605 | void noinline |
1097 | ev_io_stop (EV_P_ struct ev_io *w) |
1606 | ev_io_stop (EV_P_ ev_io *w) |
1098 | { |
1607 | { |
1099 | ev_clear_pending (EV_A_ (W)w); |
1608 | clear_pending (EV_A_ (W)w); |
1100 | if (!ev_is_active (w)) |
1609 | if (expect_false (!ev_is_active (w))) |
1101 | return; |
1610 | return; |
|
|
1611 | |
|
|
1612 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1102 | |
1613 | |
1103 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1614 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1104 | ev_stop (EV_A_ (W)w); |
1615 | ev_stop (EV_A_ (W)w); |
1105 | |
1616 | |
1106 | fd_change (EV_A_ w->fd); |
1617 | fd_change (EV_A_ w->fd); |
1107 | } |
1618 | } |
1108 | |
1619 | |
1109 | void |
1620 | void noinline |
1110 | ev_timer_start (EV_P_ struct ev_timer *w) |
1621 | ev_timer_start (EV_P_ ev_timer *w) |
1111 | { |
1622 | { |
1112 | if (ev_is_active (w)) |
1623 | if (expect_false (ev_is_active (w))) |
1113 | return; |
1624 | return; |
1114 | |
1625 | |
1115 | w->at += mn_now; |
1626 | ((WT)w)->at += mn_now; |
1116 | |
1627 | |
1117 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1628 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1118 | |
1629 | |
1119 | ev_start (EV_A_ (W)w, ++timercnt); |
1630 | ev_start (EV_A_ (W)w, ++timercnt); |
1120 | array_needsize (timers, timermax, timercnt, ); |
1631 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1121 | timers [timercnt - 1] = w; |
1632 | timers [timercnt - 1] = w; |
1122 | upheap ((WT *)timers, timercnt - 1); |
1633 | upheap ((WT *)timers, timercnt - 1); |
1123 | } |
|
|
1124 | |
1634 | |
1125 | void |
1635 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1636 | } |
|
|
1637 | |
|
|
1638 | void noinline |
1126 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1639 | ev_timer_stop (EV_P_ ev_timer *w) |
1127 | { |
1640 | { |
1128 | ev_clear_pending (EV_A_ (W)w); |
1641 | clear_pending (EV_A_ (W)w); |
1129 | if (!ev_is_active (w)) |
1642 | if (expect_false (!ev_is_active (w))) |
1130 | return; |
1643 | return; |
1131 | |
1644 | |
1132 | if (w->active < timercnt--) |
1645 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1646 | |
|
|
1647 | { |
|
|
1648 | int active = ((W)w)->active; |
|
|
1649 | |
|
|
1650 | if (expect_true (--active < --timercnt)) |
1133 | { |
1651 | { |
1134 | timers [w->active - 1] = timers [timercnt]; |
1652 | timers [active] = timers [timercnt]; |
1135 | downheap ((WT *)timers, timercnt, w->active - 1); |
1653 | adjustheap ((WT *)timers, timercnt, active); |
1136 | } |
1654 | } |
|
|
1655 | } |
1137 | |
1656 | |
1138 | w->at = w->repeat; |
1657 | ((WT)w)->at -= mn_now; |
1139 | |
1658 | |
1140 | ev_stop (EV_A_ (W)w); |
1659 | ev_stop (EV_A_ (W)w); |
1141 | } |
1660 | } |
1142 | |
1661 | |
1143 | void |
1662 | void noinline |
1144 | ev_timer_again (EV_P_ struct ev_timer *w) |
1663 | ev_timer_again (EV_P_ ev_timer *w) |
1145 | { |
1664 | { |
1146 | if (ev_is_active (w)) |
1665 | if (ev_is_active (w)) |
1147 | { |
1666 | { |
1148 | if (w->repeat) |
1667 | if (w->repeat) |
1149 | { |
1668 | { |
1150 | w->at = mn_now + w->repeat; |
1669 | ((WT)w)->at = mn_now + w->repeat; |
1151 | downheap ((WT *)timers, timercnt, w->active - 1); |
1670 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1152 | } |
1671 | } |
1153 | else |
1672 | else |
1154 | ev_timer_stop (EV_A_ w); |
1673 | ev_timer_stop (EV_A_ w); |
1155 | } |
1674 | } |
1156 | else if (w->repeat) |
1675 | else if (w->repeat) |
|
|
1676 | { |
|
|
1677 | w->at = w->repeat; |
1157 | ev_timer_start (EV_A_ w); |
1678 | ev_timer_start (EV_A_ w); |
|
|
1679 | } |
1158 | } |
1680 | } |
1159 | |
1681 | |
1160 | void |
1682 | #if EV_PERIODIC_ENABLE |
|
|
1683 | void noinline |
1161 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1684 | ev_periodic_start (EV_P_ ev_periodic *w) |
1162 | { |
1685 | { |
1163 | if (ev_is_active (w)) |
1686 | if (expect_false (ev_is_active (w))) |
1164 | return; |
1687 | return; |
1165 | |
1688 | |
|
|
1689 | if (w->reschedule_cb) |
|
|
1690 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1691 | else if (w->interval) |
|
|
1692 | { |
1166 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1693 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1167 | |
|
|
1168 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1694 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1169 | if (w->interval) |
|
|
1170 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
1695 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1696 | } |
|
|
1697 | else |
|
|
1698 | ((WT)w)->at = w->offset; |
1171 | |
1699 | |
1172 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1700 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1173 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1701 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1174 | periodics [periodiccnt - 1] = w; |
1702 | periodics [periodiccnt - 1] = w; |
1175 | upheap ((WT *)periodics, periodiccnt - 1); |
1703 | upheap ((WT *)periodics, periodiccnt - 1); |
1176 | } |
|
|
1177 | |
1704 | |
1178 | void |
1705 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1706 | } |
|
|
1707 | |
|
|
1708 | void noinline |
1179 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1709 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1180 | { |
1710 | { |
1181 | ev_clear_pending (EV_A_ (W)w); |
1711 | clear_pending (EV_A_ (W)w); |
1182 | if (!ev_is_active (w)) |
1712 | if (expect_false (!ev_is_active (w))) |
1183 | return; |
1713 | return; |
1184 | |
1714 | |
1185 | if (w->active < periodiccnt--) |
1715 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1716 | |
|
|
1717 | { |
|
|
1718 | int active = ((W)w)->active; |
|
|
1719 | |
|
|
1720 | if (expect_true (--active < --periodiccnt)) |
1186 | { |
1721 | { |
1187 | periodics [w->active - 1] = periodics [periodiccnt]; |
1722 | periodics [active] = periodics [periodiccnt]; |
1188 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1723 | adjustheap ((WT *)periodics, periodiccnt, active); |
1189 | } |
1724 | } |
|
|
1725 | } |
1190 | |
1726 | |
1191 | ev_stop (EV_A_ (W)w); |
1727 | ev_stop (EV_A_ (W)w); |
1192 | } |
1728 | } |
1193 | |
1729 | |
1194 | void |
1730 | void noinline |
1195 | ev_idle_start (EV_P_ struct ev_idle *w) |
1731 | ev_periodic_again (EV_P_ ev_periodic *w) |
1196 | { |
1732 | { |
1197 | if (ev_is_active (w)) |
1733 | /* TODO: use adjustheap and recalculation */ |
1198 | return; |
|
|
1199 | |
|
|
1200 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1201 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1202 | idles [idlecnt - 1] = w; |
|
|
1203 | } |
|
|
1204 | |
|
|
1205 | void |
|
|
1206 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1207 | { |
|
|
1208 | ev_clear_pending (EV_A_ (W)w); |
|
|
1209 | if (ev_is_active (w)) |
|
|
1210 | return; |
|
|
1211 | |
|
|
1212 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
1213 | ev_stop (EV_A_ (W)w); |
1734 | ev_periodic_stop (EV_A_ w); |
|
|
1735 | ev_periodic_start (EV_A_ w); |
1214 | } |
1736 | } |
1215 | |
1737 | #endif |
1216 | void |
|
|
1217 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1218 | { |
|
|
1219 | if (ev_is_active (w)) |
|
|
1220 | return; |
|
|
1221 | |
|
|
1222 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1223 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1224 | prepares [preparecnt - 1] = w; |
|
|
1225 | } |
|
|
1226 | |
|
|
1227 | void |
|
|
1228 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1229 | { |
|
|
1230 | ev_clear_pending (EV_A_ (W)w); |
|
|
1231 | if (ev_is_active (w)) |
|
|
1232 | return; |
|
|
1233 | |
|
|
1234 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
1235 | ev_stop (EV_A_ (W)w); |
|
|
1236 | } |
|
|
1237 | |
|
|
1238 | void |
|
|
1239 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1240 | { |
|
|
1241 | if (ev_is_active (w)) |
|
|
1242 | return; |
|
|
1243 | |
|
|
1244 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1245 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1246 | checks [checkcnt - 1] = w; |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | void |
|
|
1250 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1251 | { |
|
|
1252 | ev_clear_pending (EV_A_ (W)w); |
|
|
1253 | if (ev_is_active (w)) |
|
|
1254 | return; |
|
|
1255 | |
|
|
1256 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
1257 | ev_stop (EV_A_ (W)w); |
|
|
1258 | } |
|
|
1259 | |
1738 | |
1260 | #ifndef SA_RESTART |
1739 | #ifndef SA_RESTART |
1261 | # define SA_RESTART 0 |
1740 | # define SA_RESTART 0 |
1262 | #endif |
1741 | #endif |
1263 | |
1742 | |
1264 | void |
1743 | void noinline |
1265 | ev_signal_start (EV_P_ struct ev_signal *w) |
1744 | ev_signal_start (EV_P_ ev_signal *w) |
1266 | { |
1745 | { |
1267 | #if EV_MULTIPLICITY |
1746 | #if EV_MULTIPLICITY |
1268 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1747 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1269 | #endif |
1748 | #endif |
1270 | if (ev_is_active (w)) |
1749 | if (expect_false (ev_is_active (w))) |
1271 | return; |
1750 | return; |
1272 | |
1751 | |
1273 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1752 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1274 | |
1753 | |
1275 | ev_start (EV_A_ (W)w, 1); |
1754 | ev_start (EV_A_ (W)w, 1); |
1276 | array_needsize (signals, signalmax, w->signum, signals_init); |
1755 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1277 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1756 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1278 | |
1757 | |
1279 | if (!w->next) |
1758 | if (!((WL)w)->next) |
1280 | { |
1759 | { |
|
|
1760 | #if _WIN32 |
|
|
1761 | signal (w->signum, sighandler); |
|
|
1762 | #else |
1281 | struct sigaction sa; |
1763 | struct sigaction sa; |
1282 | sa.sa_handler = sighandler; |
1764 | sa.sa_handler = sighandler; |
1283 | sigfillset (&sa.sa_mask); |
1765 | sigfillset (&sa.sa_mask); |
1284 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1766 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1285 | sigaction (w->signum, &sa, 0); |
1767 | sigaction (w->signum, &sa, 0); |
|
|
1768 | #endif |
1286 | } |
1769 | } |
1287 | } |
1770 | } |
1288 | |
1771 | |
1289 | void |
1772 | void noinline |
1290 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1773 | ev_signal_stop (EV_P_ ev_signal *w) |
1291 | { |
1774 | { |
1292 | ev_clear_pending (EV_A_ (W)w); |
1775 | clear_pending (EV_A_ (W)w); |
1293 | if (!ev_is_active (w)) |
1776 | if (expect_false (!ev_is_active (w))) |
1294 | return; |
1777 | return; |
1295 | |
1778 | |
1296 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1779 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1297 | ev_stop (EV_A_ (W)w); |
1780 | ev_stop (EV_A_ (W)w); |
1298 | |
1781 | |
1299 | if (!signals [w->signum - 1].head) |
1782 | if (!signals [w->signum - 1].head) |
1300 | signal (w->signum, SIG_DFL); |
1783 | signal (w->signum, SIG_DFL); |
1301 | } |
1784 | } |
1302 | |
1785 | |
1303 | void |
1786 | void |
1304 | ev_child_start (EV_P_ struct ev_child *w) |
1787 | ev_child_start (EV_P_ ev_child *w) |
1305 | { |
1788 | { |
1306 | #if EV_MULTIPLICITY |
1789 | #if EV_MULTIPLICITY |
1307 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1790 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1308 | #endif |
1791 | #endif |
1309 | if (ev_is_active (w)) |
1792 | if (expect_false (ev_is_active (w))) |
1310 | return; |
1793 | return; |
1311 | |
1794 | |
1312 | ev_start (EV_A_ (W)w, 1); |
1795 | ev_start (EV_A_ (W)w, 1); |
1313 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1796 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1314 | } |
1797 | } |
1315 | |
1798 | |
1316 | void |
1799 | void |
1317 | ev_child_stop (EV_P_ struct ev_child *w) |
1800 | ev_child_stop (EV_P_ ev_child *w) |
1318 | { |
1801 | { |
1319 | ev_clear_pending (EV_A_ (W)w); |
1802 | clear_pending (EV_A_ (W)w); |
1320 | if (ev_is_active (w)) |
1803 | if (expect_false (!ev_is_active (w))) |
1321 | return; |
1804 | return; |
1322 | |
1805 | |
1323 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1806 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1324 | ev_stop (EV_A_ (W)w); |
1807 | ev_stop (EV_A_ (W)w); |
1325 | } |
1808 | } |
1326 | |
1809 | |
|
|
1810 | #if EV_STAT_ENABLE |
|
|
1811 | |
|
|
1812 | # ifdef _WIN32 |
|
|
1813 | # undef lstat |
|
|
1814 | # define lstat(a,b) _stati64 (a,b) |
|
|
1815 | # endif |
|
|
1816 | |
|
|
1817 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1818 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1819 | |
|
|
1820 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1821 | |
|
|
1822 | #if EV_USE_INOTIFY |
|
|
1823 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1824 | |
|
|
1825 | static void noinline |
|
|
1826 | infy_add (EV_P_ ev_stat *w) |
|
|
1827 | { |
|
|
1828 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
1829 | |
|
|
1830 | if (w->wd < 0) |
|
|
1831 | { |
|
|
1832 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1833 | |
|
|
1834 | /* monitor some parent directory for speedup hints */ |
|
|
1835 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1836 | { |
|
|
1837 | char path [4096]; |
|
|
1838 | strcpy (path, w->path); |
|
|
1839 | |
|
|
1840 | do |
|
|
1841 | { |
|
|
1842 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1843 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1844 | |
|
|
1845 | char *pend = strrchr (path, '/'); |
|
|
1846 | |
|
|
1847 | if (!pend) |
|
|
1848 | break; /* whoops, no '/', complain to your admin */ |
|
|
1849 | |
|
|
1850 | *pend = 0; |
|
|
1851 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1852 | } |
|
|
1853 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1854 | } |
|
|
1855 | } |
|
|
1856 | else |
|
|
1857 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1858 | |
|
|
1859 | if (w->wd >= 0) |
|
|
1860 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1861 | } |
|
|
1862 | |
|
|
1863 | static void noinline |
|
|
1864 | infy_del (EV_P_ ev_stat *w) |
|
|
1865 | { |
|
|
1866 | int slot; |
|
|
1867 | int wd = w->wd; |
|
|
1868 | |
|
|
1869 | if (wd < 0) |
|
|
1870 | return; |
|
|
1871 | |
|
|
1872 | w->wd = -2; |
|
|
1873 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1874 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1875 | |
|
|
1876 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1877 | inotify_rm_watch (fs_fd, wd); |
|
|
1878 | } |
|
|
1879 | |
|
|
1880 | static void noinline |
|
|
1881 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1882 | { |
|
|
1883 | if (slot < 0) |
|
|
1884 | /* overflow, need to check for all hahs slots */ |
|
|
1885 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1886 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1887 | else |
|
|
1888 | { |
|
|
1889 | WL w_; |
|
|
1890 | |
|
|
1891 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1892 | { |
|
|
1893 | ev_stat *w = (ev_stat *)w_; |
|
|
1894 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1895 | |
|
|
1896 | if (w->wd == wd || wd == -1) |
|
|
1897 | { |
|
|
1898 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1899 | { |
|
|
1900 | w->wd = -1; |
|
|
1901 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1905 | } |
|
|
1906 | } |
|
|
1907 | } |
|
|
1908 | } |
|
|
1909 | |
|
|
1910 | static void |
|
|
1911 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1912 | { |
|
|
1913 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1914 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1915 | int ofs; |
|
|
1916 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1917 | |
|
|
1918 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1919 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1920 | } |
|
|
1921 | |
|
|
1922 | void inline_size |
|
|
1923 | infy_init (EV_P) |
|
|
1924 | { |
|
|
1925 | if (fs_fd != -2) |
|
|
1926 | return; |
|
|
1927 | |
|
|
1928 | fs_fd = inotify_init (); |
|
|
1929 | |
|
|
1930 | if (fs_fd >= 0) |
|
|
1931 | { |
|
|
1932 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1933 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1934 | ev_io_start (EV_A_ &fs_w); |
|
|
1935 | } |
|
|
1936 | } |
|
|
1937 | |
|
|
1938 | void inline_size |
|
|
1939 | infy_fork (EV_P) |
|
|
1940 | { |
|
|
1941 | int slot; |
|
|
1942 | |
|
|
1943 | if (fs_fd < 0) |
|
|
1944 | return; |
|
|
1945 | |
|
|
1946 | close (fs_fd); |
|
|
1947 | fs_fd = inotify_init (); |
|
|
1948 | |
|
|
1949 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1950 | { |
|
|
1951 | WL w_ = fs_hash [slot].head; |
|
|
1952 | fs_hash [slot].head = 0; |
|
|
1953 | |
|
|
1954 | while (w_) |
|
|
1955 | { |
|
|
1956 | ev_stat *w = (ev_stat *)w_; |
|
|
1957 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1958 | |
|
|
1959 | w->wd = -1; |
|
|
1960 | |
|
|
1961 | if (fs_fd >= 0) |
|
|
1962 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1963 | else |
|
|
1964 | ev_timer_start (EV_A_ &w->timer); |
|
|
1965 | } |
|
|
1966 | |
|
|
1967 | } |
|
|
1968 | } |
|
|
1969 | |
|
|
1970 | #endif |
|
|
1971 | |
|
|
1972 | void |
|
|
1973 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1974 | { |
|
|
1975 | if (lstat (w->path, &w->attr) < 0) |
|
|
1976 | w->attr.st_nlink = 0; |
|
|
1977 | else if (!w->attr.st_nlink) |
|
|
1978 | w->attr.st_nlink = 1; |
|
|
1979 | } |
|
|
1980 | |
|
|
1981 | static void noinline |
|
|
1982 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1983 | { |
|
|
1984 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1985 | |
|
|
1986 | /* we copy this here each the time so that */ |
|
|
1987 | /* prev has the old value when the callback gets invoked */ |
|
|
1988 | w->prev = w->attr; |
|
|
1989 | ev_stat_stat (EV_A_ w); |
|
|
1990 | |
|
|
1991 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
1992 | if ( |
|
|
1993 | w->prev.st_dev != w->attr.st_dev |
|
|
1994 | || w->prev.st_ino != w->attr.st_ino |
|
|
1995 | || w->prev.st_mode != w->attr.st_mode |
|
|
1996 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
1997 | || w->prev.st_uid != w->attr.st_uid |
|
|
1998 | || w->prev.st_gid != w->attr.st_gid |
|
|
1999 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2000 | || w->prev.st_size != w->attr.st_size |
|
|
2001 | || w->prev.st_atime != w->attr.st_atime |
|
|
2002 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2003 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2004 | ) { |
|
|
2005 | #if EV_USE_INOTIFY |
|
|
2006 | infy_del (EV_A_ w); |
|
|
2007 | infy_add (EV_A_ w); |
|
|
2008 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2009 | #endif |
|
|
2010 | |
|
|
2011 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2012 | } |
|
|
2013 | } |
|
|
2014 | |
|
|
2015 | void |
|
|
2016 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2017 | { |
|
|
2018 | if (expect_false (ev_is_active (w))) |
|
|
2019 | return; |
|
|
2020 | |
|
|
2021 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2022 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2023 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2024 | |
|
|
2025 | ev_stat_stat (EV_A_ w); |
|
|
2026 | |
|
|
2027 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2028 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2029 | |
|
|
2030 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2031 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2032 | |
|
|
2033 | #if EV_USE_INOTIFY |
|
|
2034 | infy_init (EV_A); |
|
|
2035 | |
|
|
2036 | if (fs_fd >= 0) |
|
|
2037 | infy_add (EV_A_ w); |
|
|
2038 | else |
|
|
2039 | #endif |
|
|
2040 | ev_timer_start (EV_A_ &w->timer); |
|
|
2041 | |
|
|
2042 | ev_start (EV_A_ (W)w, 1); |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | void |
|
|
2046 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2047 | { |
|
|
2048 | clear_pending (EV_A_ (W)w); |
|
|
2049 | if (expect_false (!ev_is_active (w))) |
|
|
2050 | return; |
|
|
2051 | |
|
|
2052 | #if EV_USE_INOTIFY |
|
|
2053 | infy_del (EV_A_ w); |
|
|
2054 | #endif |
|
|
2055 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2056 | |
|
|
2057 | ev_stop (EV_A_ (W)w); |
|
|
2058 | } |
|
|
2059 | #endif |
|
|
2060 | |
|
|
2061 | #if EV_IDLE_ENABLE |
|
|
2062 | void |
|
|
2063 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2064 | { |
|
|
2065 | if (expect_false (ev_is_active (w))) |
|
|
2066 | return; |
|
|
2067 | |
|
|
2068 | pri_adjust (EV_A_ (W)w); |
|
|
2069 | |
|
|
2070 | { |
|
|
2071 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2072 | |
|
|
2073 | ++idleall; |
|
|
2074 | ev_start (EV_A_ (W)w, active); |
|
|
2075 | |
|
|
2076 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2077 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2078 | } |
|
|
2079 | } |
|
|
2080 | |
|
|
2081 | void |
|
|
2082 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2083 | { |
|
|
2084 | clear_pending (EV_A_ (W)w); |
|
|
2085 | if (expect_false (!ev_is_active (w))) |
|
|
2086 | return; |
|
|
2087 | |
|
|
2088 | { |
|
|
2089 | int active = ((W)w)->active; |
|
|
2090 | |
|
|
2091 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2092 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2093 | |
|
|
2094 | ev_stop (EV_A_ (W)w); |
|
|
2095 | --idleall; |
|
|
2096 | } |
|
|
2097 | } |
|
|
2098 | #endif |
|
|
2099 | |
|
|
2100 | void |
|
|
2101 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2102 | { |
|
|
2103 | if (expect_false (ev_is_active (w))) |
|
|
2104 | return; |
|
|
2105 | |
|
|
2106 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2107 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2108 | prepares [preparecnt - 1] = w; |
|
|
2109 | } |
|
|
2110 | |
|
|
2111 | void |
|
|
2112 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2113 | { |
|
|
2114 | clear_pending (EV_A_ (W)w); |
|
|
2115 | if (expect_false (!ev_is_active (w))) |
|
|
2116 | return; |
|
|
2117 | |
|
|
2118 | { |
|
|
2119 | int active = ((W)w)->active; |
|
|
2120 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2121 | ((W)prepares [active - 1])->active = active; |
|
|
2122 | } |
|
|
2123 | |
|
|
2124 | ev_stop (EV_A_ (W)w); |
|
|
2125 | } |
|
|
2126 | |
|
|
2127 | void |
|
|
2128 | ev_check_start (EV_P_ ev_check *w) |
|
|
2129 | { |
|
|
2130 | if (expect_false (ev_is_active (w))) |
|
|
2131 | return; |
|
|
2132 | |
|
|
2133 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2134 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2135 | checks [checkcnt - 1] = w; |
|
|
2136 | } |
|
|
2137 | |
|
|
2138 | void |
|
|
2139 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2140 | { |
|
|
2141 | clear_pending (EV_A_ (W)w); |
|
|
2142 | if (expect_false (!ev_is_active (w))) |
|
|
2143 | return; |
|
|
2144 | |
|
|
2145 | { |
|
|
2146 | int active = ((W)w)->active; |
|
|
2147 | checks [active - 1] = checks [--checkcnt]; |
|
|
2148 | ((W)checks [active - 1])->active = active; |
|
|
2149 | } |
|
|
2150 | |
|
|
2151 | ev_stop (EV_A_ (W)w); |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | #if EV_EMBED_ENABLE |
|
|
2155 | void noinline |
|
|
2156 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2157 | { |
|
|
2158 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | static void |
|
|
2162 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2163 | { |
|
|
2164 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2165 | |
|
|
2166 | if (ev_cb (w)) |
|
|
2167 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2168 | else |
|
|
2169 | ev_embed_sweep (loop, w); |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | void |
|
|
2173 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2174 | { |
|
|
2175 | if (expect_false (ev_is_active (w))) |
|
|
2176 | return; |
|
|
2177 | |
|
|
2178 | { |
|
|
2179 | struct ev_loop *loop = w->loop; |
|
|
2180 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2181 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2182 | } |
|
|
2183 | |
|
|
2184 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2185 | ev_io_start (EV_A_ &w->io); |
|
|
2186 | |
|
|
2187 | ev_start (EV_A_ (W)w, 1); |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | void |
|
|
2191 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2192 | { |
|
|
2193 | clear_pending (EV_A_ (W)w); |
|
|
2194 | if (expect_false (!ev_is_active (w))) |
|
|
2195 | return; |
|
|
2196 | |
|
|
2197 | ev_io_stop (EV_A_ &w->io); |
|
|
2198 | |
|
|
2199 | ev_stop (EV_A_ (W)w); |
|
|
2200 | } |
|
|
2201 | #endif |
|
|
2202 | |
|
|
2203 | #if EV_FORK_ENABLE |
|
|
2204 | void |
|
|
2205 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2206 | { |
|
|
2207 | if (expect_false (ev_is_active (w))) |
|
|
2208 | return; |
|
|
2209 | |
|
|
2210 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2211 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2212 | forks [forkcnt - 1] = w; |
|
|
2213 | } |
|
|
2214 | |
|
|
2215 | void |
|
|
2216 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2217 | { |
|
|
2218 | clear_pending (EV_A_ (W)w); |
|
|
2219 | if (expect_false (!ev_is_active (w))) |
|
|
2220 | return; |
|
|
2221 | |
|
|
2222 | { |
|
|
2223 | int active = ((W)w)->active; |
|
|
2224 | forks [active - 1] = forks [--forkcnt]; |
|
|
2225 | ((W)forks [active - 1])->active = active; |
|
|
2226 | } |
|
|
2227 | |
|
|
2228 | ev_stop (EV_A_ (W)w); |
|
|
2229 | } |
|
|
2230 | #endif |
|
|
2231 | |
1327 | /*****************************************************************************/ |
2232 | /*****************************************************************************/ |
1328 | |
2233 | |
1329 | struct ev_once |
2234 | struct ev_once |
1330 | { |
2235 | { |
1331 | struct ev_io io; |
2236 | ev_io io; |
1332 | struct ev_timer to; |
2237 | ev_timer to; |
1333 | void (*cb)(int revents, void *arg); |
2238 | void (*cb)(int revents, void *arg); |
1334 | void *arg; |
2239 | void *arg; |
1335 | }; |
2240 | }; |
1336 | |
2241 | |
1337 | static void |
2242 | static void |
… | |
… | |
1340 | void (*cb)(int revents, void *arg) = once->cb; |
2245 | void (*cb)(int revents, void *arg) = once->cb; |
1341 | void *arg = once->arg; |
2246 | void *arg = once->arg; |
1342 | |
2247 | |
1343 | ev_io_stop (EV_A_ &once->io); |
2248 | ev_io_stop (EV_A_ &once->io); |
1344 | ev_timer_stop (EV_A_ &once->to); |
2249 | ev_timer_stop (EV_A_ &once->to); |
1345 | free (once); |
2250 | ev_free (once); |
1346 | |
2251 | |
1347 | cb (revents, arg); |
2252 | cb (revents, arg); |
1348 | } |
2253 | } |
1349 | |
2254 | |
1350 | static void |
2255 | static void |
1351 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2256 | once_cb_io (EV_P_ ev_io *w, int revents) |
1352 | { |
2257 | { |
1353 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2258 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1354 | } |
2259 | } |
1355 | |
2260 | |
1356 | static void |
2261 | static void |
1357 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2262 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1358 | { |
2263 | { |
1359 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2264 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1360 | } |
2265 | } |
1361 | |
2266 | |
1362 | void |
2267 | void |
1363 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2268 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1364 | { |
2269 | { |
1365 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2270 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1366 | |
2271 | |
1367 | if (!once) |
2272 | if (expect_false (!once)) |
|
|
2273 | { |
1368 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2274 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1369 | else |
2275 | return; |
1370 | { |
2276 | } |
|
|
2277 | |
1371 | once->cb = cb; |
2278 | once->cb = cb; |
1372 | once->arg = arg; |
2279 | once->arg = arg; |
1373 | |
2280 | |
1374 | ev_watcher_init (&once->io, once_cb_io); |
2281 | ev_init (&once->io, once_cb_io); |
1375 | if (fd >= 0) |
2282 | if (fd >= 0) |
1376 | { |
2283 | { |
1377 | ev_io_set (&once->io, fd, events); |
2284 | ev_io_set (&once->io, fd, events); |
1378 | ev_io_start (EV_A_ &once->io); |
2285 | ev_io_start (EV_A_ &once->io); |
1379 | } |
2286 | } |
1380 | |
2287 | |
1381 | ev_watcher_init (&once->to, once_cb_to); |
2288 | ev_init (&once->to, once_cb_to); |
1382 | if (timeout >= 0.) |
2289 | if (timeout >= 0.) |
1383 | { |
2290 | { |
1384 | ev_timer_set (&once->to, timeout, 0.); |
2291 | ev_timer_set (&once->to, timeout, 0.); |
1385 | ev_timer_start (EV_A_ &once->to); |
2292 | ev_timer_start (EV_A_ &once->to); |
1386 | } |
|
|
1387 | } |
2293 | } |
1388 | } |
2294 | } |
1389 | |
2295 | |
|
|
2296 | #ifdef __cplusplus |
|
|
2297 | } |
|
|
2298 | #endif |
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|
2299 | |