… | |
… | |
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 | |
|
|
36 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
32 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
|
|
42 | |
|
|
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
|
|
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
|
|
48 | # define EV_USE_REALTIME 1 |
|
|
49 | # endif |
|
|
50 | # else |
|
|
51 | # ifndef EV_USE_MONOTONIC |
|
|
52 | # define EV_USE_MONOTONIC 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_REALTIME |
|
|
55 | # define EV_USE_REALTIME 0 |
|
|
56 | # endif |
|
|
57 | # endif |
|
|
58 | |
|
|
59 | # ifndef EV_USE_NANOSLEEP |
|
|
60 | # if HAVE_NANOSLEEP |
|
|
61 | # define EV_USE_NANOSLEEP 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_NANOSLEEP 0 |
|
|
64 | # endif |
|
|
65 | # endif |
|
|
66 | |
|
|
67 | # ifndef EV_USE_SELECT |
|
|
68 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
69 | # define EV_USE_SELECT 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_SELECT 0 |
|
|
72 | # endif |
|
|
73 | # endif |
|
|
74 | |
|
|
75 | # ifndef EV_USE_POLL |
|
|
76 | # if HAVE_POLL && HAVE_POLL_H |
|
|
77 | # define EV_USE_POLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_POLL 0 |
|
|
80 | # endif |
|
|
81 | # endif |
|
|
82 | |
|
|
83 | # ifndef EV_USE_EPOLL |
|
|
84 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
85 | # define EV_USE_EPOLL 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_EPOLL 0 |
|
|
88 | # endif |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # ifndef EV_USE_KQUEUE |
|
|
92 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
|
|
93 | # define EV_USE_KQUEUE 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_KQUEUE 0 |
|
|
96 | # endif |
|
|
97 | # endif |
|
|
98 | |
|
|
99 | # ifndef EV_USE_PORT |
|
|
100 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
101 | # define EV_USE_PORT 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_PORT 0 |
|
|
104 | # endif |
|
|
105 | # endif |
|
|
106 | |
|
|
107 | # ifndef EV_USE_INOTIFY |
|
|
108 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
109 | # define EV_USE_INOTIFY 1 |
|
|
110 | # else |
|
|
111 | # define EV_USE_INOTIFY 0 |
|
|
112 | # endif |
|
|
113 | # endif |
|
|
114 | |
33 | #endif |
115 | #endif |
34 | |
116 | |
35 | #include <math.h> |
117 | #include <math.h> |
36 | #include <stdlib.h> |
118 | #include <stdlib.h> |
37 | #include <unistd.h> |
|
|
38 | #include <fcntl.h> |
119 | #include <fcntl.h> |
39 | #include <signal.h> |
|
|
40 | #include <stddef.h> |
120 | #include <stddef.h> |
41 | |
121 | |
42 | #include <stdio.h> |
122 | #include <stdio.h> |
43 | |
123 | |
44 | #include <assert.h> |
124 | #include <assert.h> |
45 | #include <errno.h> |
125 | #include <errno.h> |
46 | #include <sys/types.h> |
126 | #include <sys/types.h> |
47 | #include <sys/wait.h> |
|
|
48 | #include <sys/time.h> |
|
|
49 | #include <time.h> |
127 | #include <time.h> |
50 | |
128 | |
|
|
129 | #include <signal.h> |
|
|
130 | |
|
|
131 | #ifdef EV_H |
|
|
132 | # include EV_H |
|
|
133 | #else |
|
|
134 | # include "ev.h" |
|
|
135 | #endif |
|
|
136 | |
|
|
137 | #ifndef _WIN32 |
|
|
138 | # include <sys/time.h> |
|
|
139 | # include <sys/wait.h> |
|
|
140 | # include <unistd.h> |
|
|
141 | #else |
|
|
142 | # define WIN32_LEAN_AND_MEAN |
|
|
143 | # include <windows.h> |
|
|
144 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
145 | # define EV_SELECT_IS_WINSOCKET 1 |
|
|
146 | # endif |
|
|
147 | #endif |
|
|
148 | |
51 | /**/ |
149 | /**/ |
52 | |
150 | |
53 | #ifndef EV_USE_MONOTONIC |
151 | #ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
152 | # define EV_USE_MONOTONIC 0 |
|
|
153 | #endif |
|
|
154 | |
|
|
155 | #ifndef EV_USE_REALTIME |
|
|
156 | # define EV_USE_REALTIME 0 |
|
|
157 | #endif |
|
|
158 | |
|
|
159 | #ifndef EV_USE_NANOSLEEP |
|
|
160 | # define EV_USE_NANOSLEEP 0 |
55 | #endif |
161 | #endif |
56 | |
162 | |
57 | #ifndef EV_USE_SELECT |
163 | #ifndef EV_USE_SELECT |
58 | # define EV_USE_SELECT 1 |
164 | # define EV_USE_SELECT 1 |
59 | #endif |
165 | #endif |
60 | |
166 | |
61 | #ifndef EV_USE_POLL |
167 | #ifndef EV_USE_POLL |
62 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
168 | # ifdef _WIN32 |
|
|
169 | # define EV_USE_POLL 0 |
|
|
170 | # else |
|
|
171 | # define EV_USE_POLL 1 |
|
|
172 | # endif |
63 | #endif |
173 | #endif |
64 | |
174 | |
65 | #ifndef EV_USE_EPOLL |
175 | #ifndef EV_USE_EPOLL |
66 | # define EV_USE_EPOLL 0 |
176 | # define EV_USE_EPOLL 0 |
67 | #endif |
177 | #endif |
68 | |
178 | |
69 | #ifndef EV_USE_KQUEUE |
179 | #ifndef EV_USE_KQUEUE |
70 | # define EV_USE_KQUEUE 0 |
180 | # define EV_USE_KQUEUE 0 |
71 | #endif |
181 | #endif |
72 | |
182 | |
73 | #ifndef EV_USE_REALTIME |
183 | #ifndef EV_USE_PORT |
74 | # define EV_USE_REALTIME 1 |
184 | # define EV_USE_PORT 0 |
|
|
185 | #endif |
|
|
186 | |
|
|
187 | #ifndef EV_USE_INOTIFY |
|
|
188 | # define EV_USE_INOTIFY 0 |
|
|
189 | #endif |
|
|
190 | |
|
|
191 | #ifndef EV_PID_HASHSIZE |
|
|
192 | # if EV_MINIMAL |
|
|
193 | # define EV_PID_HASHSIZE 1 |
|
|
194 | # else |
|
|
195 | # define EV_PID_HASHSIZE 16 |
|
|
196 | # endif |
|
|
197 | #endif |
|
|
198 | |
|
|
199 | #ifndef EV_INOTIFY_HASHSIZE |
|
|
200 | # if EV_MINIMAL |
|
|
201 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
202 | # else |
|
|
203 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
204 | # endif |
75 | #endif |
205 | #endif |
76 | |
206 | |
77 | /**/ |
207 | /**/ |
78 | |
208 | |
79 | #ifndef CLOCK_MONOTONIC |
209 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
84 | #ifndef CLOCK_REALTIME |
214 | #ifndef CLOCK_REALTIME |
85 | # undef EV_USE_REALTIME |
215 | # undef EV_USE_REALTIME |
86 | # define EV_USE_REALTIME 0 |
216 | # define EV_USE_REALTIME 0 |
87 | #endif |
217 | #endif |
88 | |
218 | |
|
|
219 | #if !EV_STAT_ENABLE |
|
|
220 | # undef EV_USE_INOTIFY |
|
|
221 | # define EV_USE_INOTIFY 0 |
|
|
222 | #endif |
|
|
223 | |
|
|
224 | #if !EV_USE_NANOSLEEP |
|
|
225 | # ifndef _WIN32 |
|
|
226 | # include <sys/select.h> |
|
|
227 | # endif |
|
|
228 | #endif |
|
|
229 | |
|
|
230 | #if EV_USE_INOTIFY |
|
|
231 | # include <sys/inotify.h> |
|
|
232 | #endif |
|
|
233 | |
|
|
234 | #if EV_SELECT_IS_WINSOCKET |
|
|
235 | # include <winsock.h> |
|
|
236 | #endif |
|
|
237 | |
89 | /**/ |
238 | /**/ |
90 | |
239 | |
|
|
240 | /* |
|
|
241 | * This is used to avoid floating point rounding problems. |
|
|
242 | * It is added to ev_rt_now when scheduling periodics |
|
|
243 | * to ensure progress, time-wise, even when rounding |
|
|
244 | * errors are against us. |
|
|
245 | * This value is good at least till the year 4000. |
|
|
246 | * Better solutions welcome. |
|
|
247 | */ |
|
|
248 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
|
|
249 | |
91 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
250 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
92 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
251 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
93 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
94 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
252 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
95 | |
253 | |
96 | #include "ev.h" |
|
|
97 | |
|
|
98 | #if __GNUC__ >= 3 |
254 | #if __GNUC__ >= 4 |
99 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
255 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
100 | # define inline inline |
256 | # define noinline __attribute__ ((noinline)) |
101 | #else |
257 | #else |
102 | # define expect(expr,value) (expr) |
258 | # define expect(expr,value) (expr) |
103 | # define inline static |
259 | # define noinline |
|
|
260 | # if __STDC_VERSION__ < 199901L |
|
|
261 | # define inline |
|
|
262 | # endif |
104 | #endif |
263 | #endif |
105 | |
264 | |
106 | #define expect_false(expr) expect ((expr) != 0, 0) |
265 | #define expect_false(expr) expect ((expr) != 0, 0) |
107 | #define expect_true(expr) expect ((expr) != 0, 1) |
266 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
267 | #define inline_size static inline |
|
|
268 | |
|
|
269 | #if EV_MINIMAL |
|
|
270 | # define inline_speed static noinline |
|
|
271 | #else |
|
|
272 | # define inline_speed static inline |
|
|
273 | #endif |
108 | |
274 | |
109 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
275 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
110 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
276 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
111 | |
277 | |
|
|
278 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
279 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
280 | |
112 | typedef struct ev_watcher *W; |
281 | typedef ev_watcher *W; |
113 | typedef struct ev_watcher_list *WL; |
282 | typedef ev_watcher_list *WL; |
114 | typedef struct ev_watcher_time *WT; |
283 | typedef ev_watcher_time *WT; |
115 | |
284 | |
116 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
285 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
286 | |
|
|
287 | #ifdef _WIN32 |
|
|
288 | # include "ev_win32.c" |
|
|
289 | #endif |
|
|
290 | |
|
|
291 | /*****************************************************************************/ |
|
|
292 | |
|
|
293 | static void (*syserr_cb)(const char *msg); |
|
|
294 | |
|
|
295 | void |
|
|
296 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
297 | { |
|
|
298 | syserr_cb = cb; |
|
|
299 | } |
|
|
300 | |
|
|
301 | static void noinline |
|
|
302 | syserr (const char *msg) |
|
|
303 | { |
|
|
304 | if (!msg) |
|
|
305 | msg = "(libev) system error"; |
|
|
306 | |
|
|
307 | if (syserr_cb) |
|
|
308 | syserr_cb (msg); |
|
|
309 | else |
|
|
310 | { |
|
|
311 | perror (msg); |
|
|
312 | abort (); |
|
|
313 | } |
|
|
314 | } |
|
|
315 | |
|
|
316 | static void *(*alloc)(void *ptr, long size); |
|
|
317 | |
|
|
318 | void |
|
|
319 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
320 | { |
|
|
321 | alloc = cb; |
|
|
322 | } |
|
|
323 | |
|
|
324 | inline_speed void * |
|
|
325 | ev_realloc (void *ptr, long size) |
|
|
326 | { |
|
|
327 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
328 | |
|
|
329 | if (!ptr && size) |
|
|
330 | { |
|
|
331 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
332 | abort (); |
|
|
333 | } |
|
|
334 | |
|
|
335 | return ptr; |
|
|
336 | } |
|
|
337 | |
|
|
338 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
339 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
340 | |
|
|
341 | /*****************************************************************************/ |
|
|
342 | |
|
|
343 | typedef struct |
|
|
344 | { |
|
|
345 | WL head; |
|
|
346 | unsigned char events; |
|
|
347 | unsigned char reify; |
|
|
348 | #if EV_SELECT_IS_WINSOCKET |
|
|
349 | SOCKET handle; |
|
|
350 | #endif |
|
|
351 | } ANFD; |
|
|
352 | |
|
|
353 | typedef struct |
|
|
354 | { |
|
|
355 | W w; |
|
|
356 | int events; |
|
|
357 | } ANPENDING; |
|
|
358 | |
|
|
359 | #if EV_USE_INOTIFY |
|
|
360 | typedef struct |
|
|
361 | { |
|
|
362 | WL head; |
|
|
363 | } ANFS; |
|
|
364 | #endif |
|
|
365 | |
|
|
366 | #if EV_MULTIPLICITY |
|
|
367 | |
|
|
368 | struct ev_loop |
|
|
369 | { |
|
|
370 | ev_tstamp ev_rt_now; |
|
|
371 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
372 | #define VAR(name,decl) decl; |
|
|
373 | #include "ev_vars.h" |
|
|
374 | #undef VAR |
|
|
375 | }; |
|
|
376 | #include "ev_wrap.h" |
|
|
377 | |
|
|
378 | static struct ev_loop default_loop_struct; |
|
|
379 | struct ev_loop *ev_default_loop_ptr; |
|
|
380 | |
|
|
381 | #else |
|
|
382 | |
117 | ev_tstamp ev_now; |
383 | ev_tstamp ev_rt_now; |
118 | int ev_method; |
384 | #define VAR(name,decl) static decl; |
|
|
385 | #include "ev_vars.h" |
|
|
386 | #undef VAR |
119 | |
387 | |
120 | static int have_monotonic; /* runtime */ |
388 | static int ev_default_loop_ptr; |
121 | |
389 | |
122 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
390 | #endif |
123 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
124 | static void (*method_poll)(ev_tstamp timeout); |
|
|
125 | |
391 | |
126 | /*****************************************************************************/ |
392 | /*****************************************************************************/ |
127 | |
393 | |
128 | ev_tstamp |
394 | ev_tstamp |
129 | ev_time (void) |
395 | ev_time (void) |
… | |
… | |
137 | gettimeofday (&tv, 0); |
403 | gettimeofday (&tv, 0); |
138 | return tv.tv_sec + tv.tv_usec * 1e-6; |
404 | return tv.tv_sec + tv.tv_usec * 1e-6; |
139 | #endif |
405 | #endif |
140 | } |
406 | } |
141 | |
407 | |
142 | static ev_tstamp |
408 | ev_tstamp inline_size |
143 | get_clock (void) |
409 | get_clock (void) |
144 | { |
410 | { |
145 | #if EV_USE_MONOTONIC |
411 | #if EV_USE_MONOTONIC |
146 | if (expect_true (have_monotonic)) |
412 | if (expect_true (have_monotonic)) |
147 | { |
413 | { |
… | |
… | |
152 | #endif |
418 | #endif |
153 | |
419 | |
154 | return ev_time (); |
420 | return ev_time (); |
155 | } |
421 | } |
156 | |
422 | |
157 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
423 | #if EV_MULTIPLICITY |
|
|
424 | ev_tstamp |
|
|
425 | ev_now (EV_P) |
|
|
426 | { |
|
|
427 | return ev_rt_now; |
|
|
428 | } |
|
|
429 | #endif |
158 | |
430 | |
159 | #define array_needsize(base,cur,cnt,init) \ |
431 | void |
160 | if (expect_false ((cnt) > cur)) \ |
432 | ev_sleep (ev_tstamp delay) |
161 | { \ |
433 | { |
162 | int newcnt = cur; \ |
434 | if (delay > 0.) |
163 | do \ |
|
|
164 | { \ |
|
|
165 | newcnt = array_roundsize (base, newcnt << 1); \ |
|
|
166 | } \ |
|
|
167 | while ((cnt) > newcnt); \ |
|
|
168 | \ |
|
|
169 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
170 | init (base + cur, newcnt - cur); \ |
|
|
171 | cur = newcnt; \ |
|
|
172 | } |
435 | { |
|
|
436 | #if EV_USE_NANOSLEEP |
|
|
437 | struct timespec ts; |
|
|
438 | |
|
|
439 | ts.tv_sec = (time_t)delay; |
|
|
440 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
441 | |
|
|
442 | nanosleep (&ts, 0); |
|
|
443 | #elif defined(_WIN32) |
|
|
444 | Sleep (delay * 1e3); |
|
|
445 | #else |
|
|
446 | struct timeval tv; |
|
|
447 | |
|
|
448 | tv.tv_sec = (time_t)delay; |
|
|
449 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
450 | |
|
|
451 | select (0, 0, 0, 0, &tv); |
|
|
452 | #endif |
|
|
453 | } |
|
|
454 | } |
173 | |
455 | |
174 | /*****************************************************************************/ |
456 | /*****************************************************************************/ |
175 | |
457 | |
176 | typedef struct |
458 | int inline_size |
|
|
459 | array_nextsize (int elem, int cur, int cnt) |
177 | { |
460 | { |
178 | struct ev_io *head; |
461 | int ncur = cur + 1; |
179 | unsigned char events; |
|
|
180 | unsigned char reify; |
|
|
181 | } ANFD; |
|
|
182 | |
462 | |
183 | static ANFD *anfds; |
463 | do |
184 | static int anfdmax; |
464 | ncur <<= 1; |
|
|
465 | while (cnt > ncur); |
185 | |
466 | |
186 | static void |
467 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
468 | if (elem * ncur > 4096) |
|
|
469 | { |
|
|
470 | ncur *= elem; |
|
|
471 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
472 | ncur = ncur - sizeof (void *) * 4; |
|
|
473 | ncur /= elem; |
|
|
474 | } |
|
|
475 | |
|
|
476 | return ncur; |
|
|
477 | } |
|
|
478 | |
|
|
479 | static noinline void * |
|
|
480 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
481 | { |
|
|
482 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
483 | return ev_realloc (base, elem * *cur); |
|
|
484 | } |
|
|
485 | |
|
|
486 | #define array_needsize(type,base,cur,cnt,init) \ |
|
|
487 | if (expect_false ((cnt) > (cur))) \ |
|
|
488 | { \ |
|
|
489 | int ocur_ = (cur); \ |
|
|
490 | (base) = (type *)array_realloc \ |
|
|
491 | (sizeof (type), (base), &(cur), (cnt)); \ |
|
|
492 | init ((base) + (ocur_), (cur) - ocur_); \ |
|
|
493 | } |
|
|
494 | |
|
|
495 | #if 0 |
|
|
496 | #define array_slim(type,stem) \ |
|
|
497 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
498 | { \ |
|
|
499 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
500 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
501 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
502 | } |
|
|
503 | #endif |
|
|
504 | |
|
|
505 | #define array_free(stem, idx) \ |
|
|
506 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
|
|
507 | |
|
|
508 | /*****************************************************************************/ |
|
|
509 | |
|
|
510 | void noinline |
|
|
511 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
512 | { |
|
|
513 | W w_ = (W)w; |
|
|
514 | int pri = ABSPRI (w_); |
|
|
515 | |
|
|
516 | if (expect_false (w_->pending)) |
|
|
517 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
518 | else |
|
|
519 | { |
|
|
520 | w_->pending = ++pendingcnt [pri]; |
|
|
521 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
522 | pendings [pri][w_->pending - 1].w = w_; |
|
|
523 | pendings [pri][w_->pending - 1].events = revents; |
|
|
524 | } |
|
|
525 | } |
|
|
526 | |
|
|
527 | void inline_speed |
|
|
528 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
529 | { |
|
|
530 | int i; |
|
|
531 | |
|
|
532 | for (i = 0; i < eventcnt; ++i) |
|
|
533 | ev_feed_event (EV_A_ events [i], type); |
|
|
534 | } |
|
|
535 | |
|
|
536 | /*****************************************************************************/ |
|
|
537 | |
|
|
538 | void inline_size |
187 | anfds_init (ANFD *base, int count) |
539 | anfds_init (ANFD *base, int count) |
188 | { |
540 | { |
189 | while (count--) |
541 | while (count--) |
190 | { |
542 | { |
191 | base->head = 0; |
543 | base->head = 0; |
… | |
… | |
194 | |
546 | |
195 | ++base; |
547 | ++base; |
196 | } |
548 | } |
197 | } |
549 | } |
198 | |
550 | |
199 | typedef struct |
551 | void inline_speed |
200 | { |
|
|
201 | W w; |
|
|
202 | int events; |
|
|
203 | } ANPENDING; |
|
|
204 | |
|
|
205 | static ANPENDING *pendings [NUMPRI]; |
|
|
206 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
207 | |
|
|
208 | static void |
|
|
209 | event (W w, int events) |
|
|
210 | { |
|
|
211 | if (w->pending) |
|
|
212 | { |
|
|
213 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
214 | return; |
|
|
215 | } |
|
|
216 | |
|
|
217 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
218 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
219 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
220 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
221 | } |
|
|
222 | |
|
|
223 | static void |
|
|
224 | queue_events (W *events, int eventcnt, int type) |
|
|
225 | { |
|
|
226 | int i; |
|
|
227 | |
|
|
228 | for (i = 0; i < eventcnt; ++i) |
|
|
229 | event (events [i], type); |
|
|
230 | } |
|
|
231 | |
|
|
232 | static void |
|
|
233 | fd_event (int fd, int events) |
552 | fd_event (EV_P_ int fd, int revents) |
234 | { |
553 | { |
235 | ANFD *anfd = anfds + fd; |
554 | ANFD *anfd = anfds + fd; |
236 | struct ev_io *w; |
555 | ev_io *w; |
237 | |
556 | |
238 | for (w = anfd->head; w; w = w->next) |
557 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
239 | { |
558 | { |
240 | int ev = w->events & events; |
559 | int ev = w->events & revents; |
241 | |
560 | |
242 | if (ev) |
561 | if (ev) |
243 | event ((W)w, ev); |
562 | ev_feed_event (EV_A_ (W)w, ev); |
244 | } |
563 | } |
245 | } |
564 | } |
246 | |
565 | |
247 | /*****************************************************************************/ |
566 | void |
|
|
567 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
568 | { |
|
|
569 | if (fd >= 0 && fd < anfdmax) |
|
|
570 | fd_event (EV_A_ fd, revents); |
|
|
571 | } |
248 | |
572 | |
249 | static int *fdchanges; |
573 | void inline_size |
250 | static int fdchangemax, fdchangecnt; |
574 | fd_reify (EV_P) |
251 | |
|
|
252 | static void |
|
|
253 | fd_reify (void) |
|
|
254 | { |
575 | { |
255 | int i; |
576 | int i; |
256 | |
577 | |
257 | for (i = 0; i < fdchangecnt; ++i) |
578 | for (i = 0; i < fdchangecnt; ++i) |
258 | { |
579 | { |
259 | int fd = fdchanges [i]; |
580 | int fd = fdchanges [i]; |
260 | ANFD *anfd = anfds + fd; |
581 | ANFD *anfd = anfds + fd; |
261 | struct ev_io *w; |
582 | ev_io *w; |
262 | |
583 | |
263 | int events = 0; |
584 | unsigned char events = 0; |
264 | |
585 | |
265 | for (w = anfd->head; w; w = w->next) |
586 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
266 | events |= w->events; |
587 | events |= (unsigned char)w->events; |
267 | |
588 | |
268 | anfd->reify = 0; |
589 | #if EV_SELECT_IS_WINSOCKET |
269 | |
590 | if (events) |
270 | if (anfd->events != events) |
|
|
271 | { |
591 | { |
272 | method_modify (fd, anfd->events, events); |
592 | unsigned long argp; |
273 | anfd->events = events; |
593 | anfd->handle = _get_osfhandle (fd); |
|
|
594 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
274 | } |
595 | } |
|
|
596 | #endif |
|
|
597 | |
|
|
598 | { |
|
|
599 | unsigned char o_events = anfd->events; |
|
|
600 | unsigned char o_reify = anfd->reify; |
|
|
601 | |
|
|
602 | anfd->reify = 0; |
|
|
603 | anfd->events = events; |
|
|
604 | |
|
|
605 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
606 | backend_modify (EV_A_ fd, o_events, events); |
|
|
607 | } |
275 | } |
608 | } |
276 | |
609 | |
277 | fdchangecnt = 0; |
610 | fdchangecnt = 0; |
278 | } |
611 | } |
279 | |
612 | |
280 | static void |
613 | void inline_size |
281 | fd_change (int fd) |
614 | fd_change (EV_P_ int fd, int flags) |
282 | { |
615 | { |
283 | if (anfds [fd].reify || fdchangecnt < 0) |
616 | unsigned char reify = anfds [fd].reify; |
284 | return; |
|
|
285 | |
|
|
286 | anfds [fd].reify = 1; |
617 | anfds [fd].reify |= flags; |
287 | |
618 | |
|
|
619 | if (expect_true (!reify)) |
|
|
620 | { |
288 | ++fdchangecnt; |
621 | ++fdchangecnt; |
289 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
622 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
290 | fdchanges [fdchangecnt - 1] = fd; |
623 | fdchanges [fdchangecnt - 1] = fd; |
|
|
624 | } |
291 | } |
625 | } |
292 | |
626 | |
293 | static void |
627 | void inline_speed |
294 | fd_kill (int fd) |
628 | fd_kill (EV_P_ int fd) |
295 | { |
629 | { |
296 | struct ev_io *w; |
630 | ev_io *w; |
297 | |
631 | |
298 | printf ("killing fd %d\n", fd);//D |
|
|
299 | while ((w = anfds [fd].head)) |
632 | while ((w = (ev_io *)anfds [fd].head)) |
300 | { |
633 | { |
301 | ev_io_stop (w); |
634 | ev_io_stop (EV_A_ w); |
302 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
635 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
303 | } |
636 | } |
|
|
637 | } |
|
|
638 | |
|
|
639 | int inline_size |
|
|
640 | fd_valid (int fd) |
|
|
641 | { |
|
|
642 | #ifdef _WIN32 |
|
|
643 | return _get_osfhandle (fd) != -1; |
|
|
644 | #else |
|
|
645 | return fcntl (fd, F_GETFD) != -1; |
|
|
646 | #endif |
304 | } |
647 | } |
305 | |
648 | |
306 | /* called on EBADF to verify fds */ |
649 | /* called on EBADF to verify fds */ |
307 | static void |
650 | static void noinline |
308 | fd_ebadf (void) |
651 | fd_ebadf (EV_P) |
309 | { |
652 | { |
310 | int fd; |
653 | int fd; |
311 | |
654 | |
312 | for (fd = 0; fd < anfdmax; ++fd) |
655 | for (fd = 0; fd < anfdmax; ++fd) |
313 | if (anfds [fd].events) |
656 | if (anfds [fd].events) |
314 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
657 | if (!fd_valid (fd) == -1 && errno == EBADF) |
315 | fd_kill (fd); |
658 | fd_kill (EV_A_ fd); |
316 | } |
659 | } |
317 | |
660 | |
318 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
661 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
319 | static void |
662 | static void noinline |
320 | fd_enomem (void) |
663 | fd_enomem (EV_P) |
321 | { |
664 | { |
322 | int fd = anfdmax; |
665 | int fd; |
323 | |
666 | |
324 | while (fd--) |
667 | for (fd = anfdmax; fd--; ) |
325 | if (anfds [fd].events) |
668 | if (anfds [fd].events) |
326 | { |
669 | { |
327 | close (fd); |
|
|
328 | fd_kill (fd); |
670 | fd_kill (EV_A_ fd); |
329 | return; |
671 | return; |
330 | } |
672 | } |
331 | } |
673 | } |
332 | |
674 | |
|
|
675 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
676 | static void noinline |
|
|
677 | fd_rearm_all (EV_P) |
|
|
678 | { |
|
|
679 | int fd; |
|
|
680 | |
|
|
681 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
682 | if (anfds [fd].events) |
|
|
683 | { |
|
|
684 | anfds [fd].events = 0; |
|
|
685 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
|
|
686 | } |
|
|
687 | } |
|
|
688 | |
333 | /*****************************************************************************/ |
689 | /*****************************************************************************/ |
334 | |
690 | |
335 | static struct ev_timer **timers; |
691 | void inline_speed |
336 | static int timermax, timercnt; |
|
|
337 | |
|
|
338 | static struct ev_periodic **periodics; |
|
|
339 | static int periodicmax, periodiccnt; |
|
|
340 | |
|
|
341 | static void |
|
|
342 | upheap (WT *timers, int k) |
692 | upheap (WT *heap, int k) |
343 | { |
693 | { |
344 | WT w = timers [k]; |
694 | WT w = heap [k]; |
345 | |
695 | |
346 | while (k && timers [k >> 1]->at > w->at) |
696 | while (k) |
347 | { |
|
|
348 | timers [k] = timers [k >> 1]; |
|
|
349 | timers [k]->active = k + 1; |
|
|
350 | k >>= 1; |
|
|
351 | } |
697 | { |
352 | |
|
|
353 | timers [k] = w; |
|
|
354 | timers [k]->active = k + 1; |
|
|
355 | |
|
|
356 | } |
|
|
357 | |
|
|
358 | static void |
|
|
359 | downheap (WT *timers, int N, int k) |
|
|
360 | { |
|
|
361 | WT w = timers [k]; |
|
|
362 | |
|
|
363 | while (k < (N >> 1)) |
|
|
364 | { |
|
|
365 | int j = k << 1; |
698 | int p = (k - 1) >> 1; |
366 | |
699 | |
367 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
700 | if (heap [p]->at <= w->at) |
368 | ++j; |
|
|
369 | |
|
|
370 | if (w->at <= timers [j]->at) |
|
|
371 | break; |
701 | break; |
372 | |
702 | |
373 | timers [k] = timers [j]; |
703 | heap [k] = heap [p]; |
374 | timers [k]->active = k + 1; |
704 | ((W)heap [k])->active = k + 1; |
375 | k = j; |
705 | k = p; |
|
|
706 | } |
|
|
707 | |
|
|
708 | heap [k] = w; |
|
|
709 | ((W)heap [k])->active = k + 1; |
|
|
710 | } |
|
|
711 | |
|
|
712 | void inline_speed |
|
|
713 | downheap (WT *heap, int N, int k) |
|
|
714 | { |
|
|
715 | WT w = heap [k]; |
|
|
716 | |
|
|
717 | for (;;) |
376 | } |
718 | { |
|
|
719 | int c = (k << 1) + 1; |
377 | |
720 | |
|
|
721 | if (c >= N) |
|
|
722 | break; |
|
|
723 | |
|
|
724 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
725 | ? 1 : 0; |
|
|
726 | |
|
|
727 | if (w->at <= heap [c]->at) |
|
|
728 | break; |
|
|
729 | |
|
|
730 | heap [k] = heap [c]; |
|
|
731 | ((W)heap [k])->active = k + 1; |
|
|
732 | |
|
|
733 | k = c; |
|
|
734 | } |
|
|
735 | |
378 | timers [k] = w; |
736 | heap [k] = w; |
379 | timers [k]->active = k + 1; |
737 | ((W)heap [k])->active = k + 1; |
|
|
738 | } |
|
|
739 | |
|
|
740 | void inline_size |
|
|
741 | adjustheap (WT *heap, int N, int k) |
|
|
742 | { |
|
|
743 | upheap (heap, k); |
|
|
744 | downheap (heap, N, k); |
380 | } |
745 | } |
381 | |
746 | |
382 | /*****************************************************************************/ |
747 | /*****************************************************************************/ |
383 | |
748 | |
384 | typedef struct |
749 | typedef struct |
385 | { |
750 | { |
386 | struct ev_signal *head; |
751 | WL head; |
387 | sig_atomic_t volatile gotsig; |
752 | sig_atomic_t volatile gotsig; |
388 | } ANSIG; |
753 | } ANSIG; |
389 | |
754 | |
390 | static ANSIG *signals; |
755 | static ANSIG *signals; |
391 | static int signalmax; |
756 | static int signalmax; |
392 | |
757 | |
393 | static int sigpipe [2]; |
758 | static int sigpipe [2]; |
394 | static sig_atomic_t volatile gotsig; |
759 | static sig_atomic_t volatile gotsig; |
395 | static struct ev_io sigev; |
760 | static ev_io sigev; |
396 | |
761 | |
397 | static void |
762 | void inline_size |
398 | signals_init (ANSIG *base, int count) |
763 | signals_init (ANSIG *base, int count) |
399 | { |
764 | { |
400 | while (count--) |
765 | while (count--) |
401 | { |
766 | { |
402 | base->head = 0; |
767 | base->head = 0; |
… | |
… | |
407 | } |
772 | } |
408 | |
773 | |
409 | static void |
774 | static void |
410 | sighandler (int signum) |
775 | sighandler (int signum) |
411 | { |
776 | { |
|
|
777 | #if _WIN32 |
|
|
778 | signal (signum, sighandler); |
|
|
779 | #endif |
|
|
780 | |
412 | signals [signum - 1].gotsig = 1; |
781 | signals [signum - 1].gotsig = 1; |
413 | |
782 | |
414 | if (!gotsig) |
783 | if (!gotsig) |
415 | { |
784 | { |
|
|
785 | int old_errno = errno; |
416 | gotsig = 1; |
786 | gotsig = 1; |
417 | write (sigpipe [1], &signum, 1); |
787 | write (sigpipe [1], &signum, 1); |
|
|
788 | errno = old_errno; |
418 | } |
789 | } |
|
|
790 | } |
|
|
791 | |
|
|
792 | void noinline |
|
|
793 | ev_feed_signal_event (EV_P_ int signum) |
|
|
794 | { |
|
|
795 | WL w; |
|
|
796 | |
|
|
797 | #if EV_MULTIPLICITY |
|
|
798 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
799 | #endif |
|
|
800 | |
|
|
801 | --signum; |
|
|
802 | |
|
|
803 | if (signum < 0 || signum >= signalmax) |
|
|
804 | return; |
|
|
805 | |
|
|
806 | signals [signum].gotsig = 0; |
|
|
807 | |
|
|
808 | for (w = signals [signum].head; w; w = w->next) |
|
|
809 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
419 | } |
810 | } |
420 | |
811 | |
421 | static void |
812 | static void |
422 | sigcb (struct ev_io *iow, int revents) |
813 | sigcb (EV_P_ ev_io *iow, int revents) |
423 | { |
814 | { |
424 | struct ev_signal *w; |
|
|
425 | int signum; |
815 | int signum; |
426 | |
816 | |
427 | read (sigpipe [0], &revents, 1); |
817 | read (sigpipe [0], &revents, 1); |
428 | gotsig = 0; |
818 | gotsig = 0; |
429 | |
819 | |
430 | for (signum = signalmax; signum--; ) |
820 | for (signum = signalmax; signum--; ) |
431 | if (signals [signum].gotsig) |
821 | if (signals [signum].gotsig) |
|
|
822 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
823 | } |
|
|
824 | |
|
|
825 | void inline_speed |
|
|
826 | fd_intern (int fd) |
|
|
827 | { |
|
|
828 | #ifdef _WIN32 |
|
|
829 | int arg = 1; |
|
|
830 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
831 | #else |
|
|
832 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
833 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
834 | #endif |
|
|
835 | } |
|
|
836 | |
|
|
837 | static void noinline |
|
|
838 | siginit (EV_P) |
|
|
839 | { |
|
|
840 | fd_intern (sigpipe [0]); |
|
|
841 | fd_intern (sigpipe [1]); |
|
|
842 | |
|
|
843 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
844 | ev_io_start (EV_A_ &sigev); |
|
|
845 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
846 | } |
|
|
847 | |
|
|
848 | /*****************************************************************************/ |
|
|
849 | |
|
|
850 | static WL childs [EV_PID_HASHSIZE]; |
|
|
851 | |
|
|
852 | #ifndef _WIN32 |
|
|
853 | |
|
|
854 | static ev_signal childev; |
|
|
855 | |
|
|
856 | void inline_speed |
|
|
857 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
858 | { |
|
|
859 | ev_child *w; |
|
|
860 | |
|
|
861 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
862 | if (w->pid == pid || !w->pid) |
432 | { |
863 | { |
433 | signals [signum].gotsig = 0; |
864 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
434 | |
865 | w->rpid = pid; |
435 | for (w = signals [signum].head; w; w = w->next) |
866 | w->rstatus = status; |
436 | event ((W)w, EV_SIGNAL); |
867 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
437 | } |
868 | } |
438 | } |
869 | } |
439 | |
|
|
440 | static void |
|
|
441 | siginit (void) |
|
|
442 | { |
|
|
443 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
444 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
445 | |
|
|
446 | /* rather than sort out wether we really need nb, set it */ |
|
|
447 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
448 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
449 | |
|
|
450 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
451 | ev_io_start (&sigev); |
|
|
452 | } |
|
|
453 | |
|
|
454 | /*****************************************************************************/ |
|
|
455 | |
|
|
456 | static struct ev_idle **idles; |
|
|
457 | static int idlemax, idlecnt; |
|
|
458 | |
|
|
459 | static struct ev_prepare **prepares; |
|
|
460 | static int preparemax, preparecnt; |
|
|
461 | |
|
|
462 | static struct ev_check **checks; |
|
|
463 | static int checkmax, checkcnt; |
|
|
464 | |
|
|
465 | /*****************************************************************************/ |
|
|
466 | |
|
|
467 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
468 | static struct ev_signal childev; |
|
|
469 | |
870 | |
470 | #ifndef WCONTINUED |
871 | #ifndef WCONTINUED |
471 | # define WCONTINUED 0 |
872 | # define WCONTINUED 0 |
472 | #endif |
873 | #endif |
473 | |
874 | |
474 | static void |
875 | static void |
475 | childcb (struct ev_signal *sw, int revents) |
876 | childcb (EV_P_ ev_signal *sw, int revents) |
476 | { |
877 | { |
477 | struct ev_child *w; |
|
|
478 | int pid, status; |
878 | int pid, status; |
479 | |
879 | |
|
|
880 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
480 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
881 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
481 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
882 | if (!WCONTINUED |
482 | if (w->pid == pid || !w->pid) |
883 | || errno != EINVAL |
483 | { |
884 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
484 | w->status = status; |
885 | return; |
485 | event ((W)w, EV_CHILD); |
886 | |
486 | } |
887 | /* make sure we are called again until all childs have been reaped */ |
|
|
888 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
889 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
890 | |
|
|
891 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
892 | if (EV_PID_HASHSIZE > 1) |
|
|
893 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
487 | } |
894 | } |
|
|
895 | |
|
|
896 | #endif |
488 | |
897 | |
489 | /*****************************************************************************/ |
898 | /*****************************************************************************/ |
490 | |
899 | |
|
|
900 | #if EV_USE_PORT |
|
|
901 | # include "ev_port.c" |
|
|
902 | #endif |
491 | #if EV_USE_KQUEUE |
903 | #if EV_USE_KQUEUE |
492 | # include "ev_kqueue.c" |
904 | # include "ev_kqueue.c" |
493 | #endif |
905 | #endif |
494 | #if EV_USE_EPOLL |
906 | #if EV_USE_EPOLL |
495 | # include "ev_epoll.c" |
907 | # include "ev_epoll.c" |
… | |
… | |
511 | ev_version_minor (void) |
923 | ev_version_minor (void) |
512 | { |
924 | { |
513 | return EV_VERSION_MINOR; |
925 | return EV_VERSION_MINOR; |
514 | } |
926 | } |
515 | |
927 | |
516 | /* return true if we are running with elevated privileges and ignore env variables */ |
928 | /* return true if we are running with elevated privileges and should ignore env variables */ |
517 | static int |
929 | int inline_size |
518 | enable_secure () |
930 | enable_secure (void) |
519 | { |
931 | { |
|
|
932 | #ifdef _WIN32 |
|
|
933 | return 0; |
|
|
934 | #else |
520 | return getuid () != geteuid () |
935 | return getuid () != geteuid () |
521 | || getgid () != getegid (); |
936 | || getgid () != getegid (); |
|
|
937 | #endif |
522 | } |
938 | } |
523 | |
939 | |
524 | int ev_init (int methods) |
940 | unsigned int |
|
|
941 | ev_supported_backends (void) |
525 | { |
942 | { |
526 | if (!ev_method) |
943 | unsigned int flags = 0; |
|
|
944 | |
|
|
945 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
946 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
947 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
948 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
949 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
950 | |
|
|
951 | return flags; |
|
|
952 | } |
|
|
953 | |
|
|
954 | unsigned int |
|
|
955 | ev_recommended_backends (void) |
|
|
956 | { |
|
|
957 | unsigned int flags = ev_supported_backends (); |
|
|
958 | |
|
|
959 | #ifndef __NetBSD__ |
|
|
960 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
961 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
962 | flags &= ~EVBACKEND_KQUEUE; |
|
|
963 | #endif |
|
|
964 | #ifdef __APPLE__ |
|
|
965 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
966 | flags &= ~EVBACKEND_POLL; |
|
|
967 | #endif |
|
|
968 | |
|
|
969 | return flags; |
|
|
970 | } |
|
|
971 | |
|
|
972 | unsigned int |
|
|
973 | ev_embeddable_backends (void) |
|
|
974 | { |
|
|
975 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
976 | return EVBACKEND_KQUEUE |
|
|
977 | | EVBACKEND_PORT; |
|
|
978 | } |
|
|
979 | |
|
|
980 | unsigned int |
|
|
981 | ev_backend (EV_P) |
|
|
982 | { |
|
|
983 | return backend; |
|
|
984 | } |
|
|
985 | |
|
|
986 | unsigned int |
|
|
987 | ev_loop_count (EV_P) |
|
|
988 | { |
|
|
989 | return loop_count; |
|
|
990 | } |
|
|
991 | |
|
|
992 | void |
|
|
993 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
994 | { |
|
|
995 | io_blocktime = interval; |
|
|
996 | } |
|
|
997 | |
|
|
998 | void |
|
|
999 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1000 | { |
|
|
1001 | timeout_blocktime = interval; |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | static void noinline |
|
|
1005 | loop_init (EV_P_ unsigned int flags) |
|
|
1006 | { |
|
|
1007 | if (!backend) |
527 | { |
1008 | { |
528 | #if EV_USE_MONOTONIC |
1009 | #if EV_USE_MONOTONIC |
529 | { |
1010 | { |
530 | struct timespec ts; |
1011 | struct timespec ts; |
531 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1012 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
532 | have_monotonic = 1; |
1013 | have_monotonic = 1; |
533 | } |
1014 | } |
534 | #endif |
1015 | #endif |
535 | |
1016 | |
536 | ev_now = ev_time (); |
1017 | ev_rt_now = ev_time (); |
537 | now = get_clock (); |
1018 | mn_now = get_clock (); |
538 | now_floor = now; |
1019 | now_floor = mn_now; |
539 | diff = ev_now - now; |
1020 | rtmn_diff = ev_rt_now - mn_now; |
540 | |
1021 | |
541 | if (pipe (sigpipe)) |
1022 | io_blocktime = 0.; |
542 | return 0; |
1023 | timeout_blocktime = 0.; |
543 | |
1024 | |
544 | if (methods == EVMETHOD_AUTO) |
1025 | /* pid check not overridable via env */ |
545 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1026 | #ifndef _WIN32 |
|
|
1027 | if (flags & EVFLAG_FORKCHECK) |
|
|
1028 | curpid = getpid (); |
|
|
1029 | #endif |
|
|
1030 | |
|
|
1031 | if (!(flags & EVFLAG_NOENV) |
|
|
1032 | && !enable_secure () |
|
|
1033 | && getenv ("LIBEV_FLAGS")) |
546 | methods = atoi (getenv ("LIBEV_METHODS")); |
1034 | flags = atoi (getenv ("LIBEV_FLAGS")); |
547 | else |
|
|
548 | methods = EVMETHOD_ANY; |
|
|
549 | |
1035 | |
550 | ev_method = 0; |
1036 | if (!(flags & 0x0000ffffUL)) |
|
|
1037 | flags |= ev_recommended_backends (); |
|
|
1038 | |
|
|
1039 | backend = 0; |
|
|
1040 | backend_fd = -1; |
|
|
1041 | #if EV_USE_INOTIFY |
|
|
1042 | fs_fd = -2; |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | #if EV_USE_PORT |
|
|
1046 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
1047 | #endif |
551 | #if EV_USE_KQUEUE |
1048 | #if EV_USE_KQUEUE |
552 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
1049 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
553 | #endif |
1050 | #endif |
554 | #if EV_USE_EPOLL |
1051 | #if EV_USE_EPOLL |
555 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
1052 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
556 | #endif |
1053 | #endif |
557 | #if EV_USE_POLL |
1054 | #if EV_USE_POLL |
558 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
1055 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
559 | #endif |
1056 | #endif |
560 | #if EV_USE_SELECT |
1057 | #if EV_USE_SELECT |
561 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
1058 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
562 | #endif |
1059 | #endif |
563 | |
1060 | |
564 | if (ev_method) |
1061 | ev_init (&sigev, sigcb); |
|
|
1062 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
1063 | } |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | static void noinline |
|
|
1067 | loop_destroy (EV_P) |
|
|
1068 | { |
|
|
1069 | int i; |
|
|
1070 | |
|
|
1071 | #if EV_USE_INOTIFY |
|
|
1072 | if (fs_fd >= 0) |
|
|
1073 | close (fs_fd); |
|
|
1074 | #endif |
|
|
1075 | |
|
|
1076 | if (backend_fd >= 0) |
|
|
1077 | close (backend_fd); |
|
|
1078 | |
|
|
1079 | #if EV_USE_PORT |
|
|
1080 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1081 | #endif |
|
|
1082 | #if EV_USE_KQUEUE |
|
|
1083 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1084 | #endif |
|
|
1085 | #if EV_USE_EPOLL |
|
|
1086 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1087 | #endif |
|
|
1088 | #if EV_USE_POLL |
|
|
1089 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1090 | #endif |
|
|
1091 | #if EV_USE_SELECT |
|
|
1092 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1093 | #endif |
|
|
1094 | |
|
|
1095 | for (i = NUMPRI; i--; ) |
|
|
1096 | { |
|
|
1097 | array_free (pending, [i]); |
|
|
1098 | #if EV_IDLE_ENABLE |
|
|
1099 | array_free (idle, [i]); |
|
|
1100 | #endif |
|
|
1101 | } |
|
|
1102 | |
|
|
1103 | ev_free (anfds); anfdmax = 0; |
|
|
1104 | |
|
|
1105 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1106 | array_free (fdchange, EMPTY); |
|
|
1107 | array_free (timer, EMPTY); |
|
|
1108 | #if EV_PERIODIC_ENABLE |
|
|
1109 | array_free (periodic, EMPTY); |
|
|
1110 | #endif |
|
|
1111 | #if EV_FORK_ENABLE |
|
|
1112 | array_free (fork, EMPTY); |
|
|
1113 | #endif |
|
|
1114 | array_free (prepare, EMPTY); |
|
|
1115 | array_free (check, EMPTY); |
|
|
1116 | |
|
|
1117 | backend = 0; |
|
|
1118 | } |
|
|
1119 | |
|
|
1120 | void inline_size infy_fork (EV_P); |
|
|
1121 | |
|
|
1122 | void inline_size |
|
|
1123 | loop_fork (EV_P) |
|
|
1124 | { |
|
|
1125 | #if EV_USE_PORT |
|
|
1126 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1127 | #endif |
|
|
1128 | #if EV_USE_KQUEUE |
|
|
1129 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1130 | #endif |
|
|
1131 | #if EV_USE_EPOLL |
|
|
1132 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1133 | #endif |
|
|
1134 | #if EV_USE_INOTIFY |
|
|
1135 | infy_fork (EV_A); |
|
|
1136 | #endif |
|
|
1137 | |
|
|
1138 | if (ev_is_active (&sigev)) |
|
|
1139 | { |
|
|
1140 | /* default loop */ |
|
|
1141 | |
|
|
1142 | ev_ref (EV_A); |
|
|
1143 | ev_io_stop (EV_A_ &sigev); |
|
|
1144 | close (sigpipe [0]); |
|
|
1145 | close (sigpipe [1]); |
|
|
1146 | |
|
|
1147 | while (pipe (sigpipe)) |
|
|
1148 | syserr ("(libev) error creating pipe"); |
|
|
1149 | |
|
|
1150 | siginit (EV_A); |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | postfork = 0; |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | #if EV_MULTIPLICITY |
|
|
1157 | struct ev_loop * |
|
|
1158 | ev_loop_new (unsigned int flags) |
|
|
1159 | { |
|
|
1160 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1161 | |
|
|
1162 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1163 | |
|
|
1164 | loop_init (EV_A_ flags); |
|
|
1165 | |
|
|
1166 | if (ev_backend (EV_A)) |
|
|
1167 | return loop; |
|
|
1168 | |
|
|
1169 | return 0; |
|
|
1170 | } |
|
|
1171 | |
|
|
1172 | void |
|
|
1173 | ev_loop_destroy (EV_P) |
|
|
1174 | { |
|
|
1175 | loop_destroy (EV_A); |
|
|
1176 | ev_free (loop); |
|
|
1177 | } |
|
|
1178 | |
|
|
1179 | void |
|
|
1180 | ev_loop_fork (EV_P) |
|
|
1181 | { |
|
|
1182 | postfork = 1; |
|
|
1183 | } |
|
|
1184 | |
|
|
1185 | #endif |
|
|
1186 | |
|
|
1187 | #if EV_MULTIPLICITY |
|
|
1188 | struct ev_loop * |
|
|
1189 | ev_default_loop_init (unsigned int flags) |
|
|
1190 | #else |
|
|
1191 | int |
|
|
1192 | ev_default_loop (unsigned int flags) |
|
|
1193 | #endif |
|
|
1194 | { |
|
|
1195 | if (sigpipe [0] == sigpipe [1]) |
|
|
1196 | if (pipe (sigpipe)) |
|
|
1197 | return 0; |
|
|
1198 | |
|
|
1199 | if (!ev_default_loop_ptr) |
|
|
1200 | { |
|
|
1201 | #if EV_MULTIPLICITY |
|
|
1202 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1203 | #else |
|
|
1204 | ev_default_loop_ptr = 1; |
|
|
1205 | #endif |
|
|
1206 | |
|
|
1207 | loop_init (EV_A_ flags); |
|
|
1208 | |
|
|
1209 | if (ev_backend (EV_A)) |
565 | { |
1210 | { |
566 | ev_watcher_init (&sigev, sigcb); |
|
|
567 | siginit (); |
1211 | siginit (EV_A); |
568 | |
1212 | |
|
|
1213 | #ifndef _WIN32 |
569 | ev_signal_init (&childev, childcb, SIGCHLD); |
1214 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1215 | ev_set_priority (&childev, EV_MAXPRI); |
570 | ev_signal_start (&childev); |
1216 | ev_signal_start (EV_A_ &childev); |
|
|
1217 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1218 | #endif |
571 | } |
1219 | } |
|
|
1220 | else |
|
|
1221 | ev_default_loop_ptr = 0; |
572 | } |
1222 | } |
573 | |
1223 | |
574 | return ev_method; |
1224 | return ev_default_loop_ptr; |
|
|
1225 | } |
|
|
1226 | |
|
|
1227 | void |
|
|
1228 | ev_default_destroy (void) |
|
|
1229 | { |
|
|
1230 | #if EV_MULTIPLICITY |
|
|
1231 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1232 | #endif |
|
|
1233 | |
|
|
1234 | #ifndef _WIN32 |
|
|
1235 | ev_ref (EV_A); /* child watcher */ |
|
|
1236 | ev_signal_stop (EV_A_ &childev); |
|
|
1237 | #endif |
|
|
1238 | |
|
|
1239 | ev_ref (EV_A); /* signal watcher */ |
|
|
1240 | ev_io_stop (EV_A_ &sigev); |
|
|
1241 | |
|
|
1242 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1243 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1244 | |
|
|
1245 | loop_destroy (EV_A); |
|
|
1246 | } |
|
|
1247 | |
|
|
1248 | void |
|
|
1249 | ev_default_fork (void) |
|
|
1250 | { |
|
|
1251 | #if EV_MULTIPLICITY |
|
|
1252 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1253 | #endif |
|
|
1254 | |
|
|
1255 | if (backend) |
|
|
1256 | postfork = 1; |
575 | } |
1257 | } |
576 | |
1258 | |
577 | /*****************************************************************************/ |
1259 | /*****************************************************************************/ |
578 | |
1260 | |
579 | void |
1261 | void |
580 | ev_fork_prepare (void) |
1262 | ev_invoke (EV_P_ void *w, int revents) |
581 | { |
1263 | { |
582 | /* nop */ |
1264 | EV_CB_INVOKE ((W)w, revents); |
583 | } |
1265 | } |
584 | |
1266 | |
585 | void |
1267 | void inline_speed |
586 | ev_fork_parent (void) |
|
|
587 | { |
|
|
588 | /* nop */ |
|
|
589 | } |
|
|
590 | |
|
|
591 | void |
|
|
592 | ev_fork_child (void) |
|
|
593 | { |
|
|
594 | #if EV_USE_EPOLL |
|
|
595 | if (ev_method == EVMETHOD_EPOLL) |
|
|
596 | epoll_postfork_child (); |
|
|
597 | #endif |
|
|
598 | |
|
|
599 | ev_io_stop (&sigev); |
|
|
600 | close (sigpipe [0]); |
|
|
601 | close (sigpipe [1]); |
|
|
602 | pipe (sigpipe); |
|
|
603 | siginit (); |
|
|
604 | } |
|
|
605 | |
|
|
606 | /*****************************************************************************/ |
|
|
607 | |
|
|
608 | static void |
|
|
609 | call_pending (void) |
1268 | call_pending (EV_P) |
610 | { |
1269 | { |
611 | int pri; |
1270 | int pri; |
612 | |
1271 | |
613 | for (pri = NUMPRI; pri--; ) |
1272 | for (pri = NUMPRI; pri--; ) |
614 | while (pendingcnt [pri]) |
1273 | while (pendingcnt [pri]) |
615 | { |
1274 | { |
616 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1275 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
617 | |
1276 | |
618 | if (p->w) |
1277 | if (expect_true (p->w)) |
619 | { |
1278 | { |
|
|
1279 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1280 | |
620 | p->w->pending = 0; |
1281 | p->w->pending = 0; |
621 | p->w->cb (p->w, p->events); |
1282 | EV_CB_INVOKE (p->w, p->events); |
622 | } |
1283 | } |
623 | } |
1284 | } |
624 | } |
1285 | } |
625 | |
1286 | |
626 | static void |
1287 | void inline_size |
627 | timers_reify (void) |
1288 | timers_reify (EV_P) |
628 | { |
1289 | { |
629 | while (timercnt && timers [0]->at <= now) |
1290 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
630 | { |
1291 | { |
631 | struct ev_timer *w = timers [0]; |
1292 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1293 | |
|
|
1294 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
632 | |
1295 | |
633 | /* first reschedule or stop timer */ |
1296 | /* first reschedule or stop timer */ |
634 | if (w->repeat) |
1297 | if (w->repeat) |
635 | { |
1298 | { |
636 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1299 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1300 | |
637 | w->at = now + w->repeat; |
1301 | ((WT)w)->at += w->repeat; |
|
|
1302 | if (((WT)w)->at < mn_now) |
|
|
1303 | ((WT)w)->at = mn_now; |
|
|
1304 | |
638 | downheap ((WT *)timers, timercnt, 0); |
1305 | downheap (timers, timercnt, 0); |
639 | } |
1306 | } |
640 | else |
1307 | else |
641 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1308 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
642 | |
1309 | |
643 | event ((W)w, EV_TIMEOUT); |
1310 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
644 | } |
1311 | } |
645 | } |
1312 | } |
646 | |
1313 | |
647 | static void |
1314 | #if EV_PERIODIC_ENABLE |
|
|
1315 | void inline_size |
648 | periodics_reify (void) |
1316 | periodics_reify (EV_P) |
649 | { |
1317 | { |
650 | while (periodiccnt && periodics [0]->at <= ev_now) |
1318 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
651 | { |
1319 | { |
652 | struct ev_periodic *w = periodics [0]; |
1320 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1321 | |
|
|
1322 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
653 | |
1323 | |
654 | /* first reschedule or stop timer */ |
1324 | /* first reschedule or stop timer */ |
655 | if (w->interval) |
1325 | if (w->reschedule_cb) |
656 | { |
1326 | { |
|
|
1327 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1328 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1329 | downheap (periodics, periodiccnt, 0); |
|
|
1330 | } |
|
|
1331 | else if (w->interval) |
|
|
1332 | { |
657 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1333 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1334 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
658 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1335 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
659 | downheap ((WT *)periodics, periodiccnt, 0); |
1336 | downheap (periodics, periodiccnt, 0); |
660 | } |
1337 | } |
661 | else |
1338 | else |
662 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1339 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
663 | |
1340 | |
664 | event ((W)w, EV_PERIODIC); |
1341 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
665 | } |
1342 | } |
666 | } |
1343 | } |
667 | |
1344 | |
668 | static void |
1345 | static void noinline |
669 | periodics_reschedule (ev_tstamp diff) |
1346 | periodics_reschedule (EV_P) |
670 | { |
1347 | { |
671 | int i; |
1348 | int i; |
672 | |
1349 | |
673 | /* adjust periodics after time jump */ |
1350 | /* adjust periodics after time jump */ |
674 | for (i = 0; i < periodiccnt; ++i) |
1351 | for (i = 0; i < periodiccnt; ++i) |
675 | { |
1352 | { |
676 | struct ev_periodic *w = periodics [i]; |
1353 | ev_periodic *w = (ev_periodic *)periodics [i]; |
677 | |
1354 | |
|
|
1355 | if (w->reschedule_cb) |
|
|
1356 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
678 | if (w->interval) |
1357 | else if (w->interval) |
|
|
1358 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1359 | } |
|
|
1360 | |
|
|
1361 | /* now rebuild the heap */ |
|
|
1362 | for (i = periodiccnt >> 1; i--; ) |
|
|
1363 | downheap (periodics, periodiccnt, i); |
|
|
1364 | } |
|
|
1365 | #endif |
|
|
1366 | |
|
|
1367 | #if EV_IDLE_ENABLE |
|
|
1368 | void inline_size |
|
|
1369 | idle_reify (EV_P) |
|
|
1370 | { |
|
|
1371 | if (expect_false (idleall)) |
|
|
1372 | { |
|
|
1373 | int pri; |
|
|
1374 | |
|
|
1375 | for (pri = NUMPRI; pri--; ) |
679 | { |
1376 | { |
680 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1377 | if (pendingcnt [pri]) |
|
|
1378 | break; |
681 | |
1379 | |
682 | if (fabs (diff) >= 1e-4) |
1380 | if (idlecnt [pri]) |
683 | { |
1381 | { |
684 | ev_periodic_stop (w); |
1382 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
685 | ev_periodic_start (w); |
1383 | break; |
686 | |
|
|
687 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
688 | } |
1384 | } |
689 | } |
1385 | } |
690 | } |
1386 | } |
691 | } |
1387 | } |
|
|
1388 | #endif |
692 | |
1389 | |
693 | static int |
1390 | void inline_speed |
694 | time_update_monotonic (void) |
1391 | time_update (EV_P_ ev_tstamp max_block) |
695 | { |
|
|
696 | now = get_clock (); |
|
|
697 | |
|
|
698 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
699 | { |
|
|
700 | ev_now = now + diff; |
|
|
701 | return 0; |
|
|
702 | } |
|
|
703 | else |
|
|
704 | { |
|
|
705 | now_floor = now; |
|
|
706 | ev_now = ev_time (); |
|
|
707 | return 1; |
|
|
708 | } |
|
|
709 | } |
|
|
710 | |
|
|
711 | static void |
|
|
712 | time_update (void) |
|
|
713 | { |
1392 | { |
714 | int i; |
1393 | int i; |
715 | |
1394 | |
716 | #if EV_USE_MONOTONIC |
1395 | #if EV_USE_MONOTONIC |
717 | if (expect_true (have_monotonic)) |
1396 | if (expect_true (have_monotonic)) |
718 | { |
1397 | { |
719 | if (time_update_monotonic ()) |
1398 | ev_tstamp odiff = rtmn_diff; |
|
|
1399 | |
|
|
1400 | mn_now = get_clock (); |
|
|
1401 | |
|
|
1402 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1403 | /* interpolate in the meantime */ |
|
|
1404 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
720 | { |
1405 | { |
721 | ev_tstamp odiff = diff; |
1406 | ev_rt_now = rtmn_diff + mn_now; |
722 | |
1407 | return; |
723 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
724 | { |
|
|
725 | diff = ev_now - now; |
|
|
726 | |
|
|
727 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
728 | return; /* all is well */ |
|
|
729 | |
|
|
730 | ev_now = ev_time (); |
|
|
731 | now = get_clock (); |
|
|
732 | now_floor = now; |
|
|
733 | } |
|
|
734 | |
|
|
735 | periodics_reschedule (diff - odiff); |
|
|
736 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
737 | } |
1408 | } |
|
|
1409 | |
|
|
1410 | now_floor = mn_now; |
|
|
1411 | ev_rt_now = ev_time (); |
|
|
1412 | |
|
|
1413 | /* loop a few times, before making important decisions. |
|
|
1414 | * on the choice of "4": one iteration isn't enough, |
|
|
1415 | * in case we get preempted during the calls to |
|
|
1416 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1417 | * to succeed in that case, though. and looping a few more times |
|
|
1418 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1419 | * in the unlikely event of having been preempted here. |
|
|
1420 | */ |
|
|
1421 | for (i = 4; --i; ) |
|
|
1422 | { |
|
|
1423 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1424 | |
|
|
1425 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
|
|
1426 | return; /* all is well */ |
|
|
1427 | |
|
|
1428 | ev_rt_now = ev_time (); |
|
|
1429 | mn_now = get_clock (); |
|
|
1430 | now_floor = mn_now; |
|
|
1431 | } |
|
|
1432 | |
|
|
1433 | # if EV_PERIODIC_ENABLE |
|
|
1434 | periodics_reschedule (EV_A); |
|
|
1435 | # endif |
|
|
1436 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1437 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
738 | } |
1438 | } |
739 | else |
1439 | else |
740 | #endif |
1440 | #endif |
741 | { |
1441 | { |
742 | ev_now = ev_time (); |
1442 | ev_rt_now = ev_time (); |
743 | |
1443 | |
744 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1444 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
745 | { |
1445 | { |
|
|
1446 | #if EV_PERIODIC_ENABLE |
746 | periodics_reschedule (ev_now - now); |
1447 | periodics_reschedule (EV_A); |
747 | |
1448 | #endif |
748 | /* adjust timers. this is easy, as the offset is the same for all */ |
1449 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
749 | for (i = 0; i < timercnt; ++i) |
1450 | for (i = 0; i < timercnt; ++i) |
750 | timers [i]->at += diff; |
1451 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
751 | } |
1452 | } |
752 | |
1453 | |
753 | now = ev_now; |
1454 | mn_now = ev_rt_now; |
754 | } |
1455 | } |
755 | } |
1456 | } |
756 | |
1457 | |
757 | int ev_loop_done; |
1458 | void |
|
|
1459 | ev_ref (EV_P) |
|
|
1460 | { |
|
|
1461 | ++activecnt; |
|
|
1462 | } |
758 | |
1463 | |
|
|
1464 | void |
|
|
1465 | ev_unref (EV_P) |
|
|
1466 | { |
|
|
1467 | --activecnt; |
|
|
1468 | } |
|
|
1469 | |
|
|
1470 | static int loop_done; |
|
|
1471 | |
|
|
1472 | void |
759 | void ev_loop (int flags) |
1473 | ev_loop (EV_P_ int flags) |
760 | { |
1474 | { |
761 | double block; |
|
|
762 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1475 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1476 | ? EVUNLOOP_ONE |
|
|
1477 | : EVUNLOOP_CANCEL; |
|
|
1478 | |
|
|
1479 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
763 | |
1480 | |
764 | do |
1481 | do |
765 | { |
1482 | { |
|
|
1483 | #ifndef _WIN32 |
|
|
1484 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1485 | if (expect_false (getpid () != curpid)) |
|
|
1486 | { |
|
|
1487 | curpid = getpid (); |
|
|
1488 | postfork = 1; |
|
|
1489 | } |
|
|
1490 | #endif |
|
|
1491 | |
|
|
1492 | #if EV_FORK_ENABLE |
|
|
1493 | /* we might have forked, so queue fork handlers */ |
|
|
1494 | if (expect_false (postfork)) |
|
|
1495 | if (forkcnt) |
|
|
1496 | { |
|
|
1497 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1498 | call_pending (EV_A); |
|
|
1499 | } |
|
|
1500 | #endif |
|
|
1501 | |
766 | /* queue check watchers (and execute them) */ |
1502 | /* queue prepare watchers (and execute them) */ |
767 | if (expect_false (preparecnt)) |
1503 | if (expect_false (preparecnt)) |
768 | { |
1504 | { |
769 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1505 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
770 | call_pending (); |
1506 | call_pending (EV_A); |
771 | } |
1507 | } |
772 | |
1508 | |
|
|
1509 | if (expect_false (!activecnt)) |
|
|
1510 | break; |
|
|
1511 | |
|
|
1512 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1513 | if (expect_false (postfork)) |
|
|
1514 | loop_fork (EV_A); |
|
|
1515 | |
773 | /* update fd-related kernel structures */ |
1516 | /* update fd-related kernel structures */ |
774 | fd_reify (); |
1517 | fd_reify (EV_A); |
775 | |
1518 | |
776 | /* calculate blocking time */ |
1519 | /* calculate blocking time */ |
|
|
1520 | { |
|
|
1521 | ev_tstamp waittime = 0.; |
|
|
1522 | ev_tstamp sleeptime = 0.; |
777 | |
1523 | |
778 | /* we only need this for !monotonic clockor timers, but as we basically |
1524 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
779 | always have timers, we just calculate it always */ |
|
|
780 | #if EV_USE_MONOTONIC |
|
|
781 | if (expect_true (have_monotonic)) |
|
|
782 | time_update_monotonic (); |
|
|
783 | else |
|
|
784 | #endif |
|
|
785 | { |
1525 | { |
786 | ev_now = ev_time (); |
1526 | /* update time to cancel out callback processing overhead */ |
787 | now = ev_now; |
1527 | time_update (EV_A_ 1e100); |
788 | } |
|
|
789 | |
1528 | |
790 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
791 | block = 0.; |
|
|
792 | else |
|
|
793 | { |
|
|
794 | block = MAX_BLOCKTIME; |
1529 | waittime = MAX_BLOCKTIME; |
795 | |
1530 | |
796 | if (timercnt) |
1531 | if (timercnt) |
797 | { |
1532 | { |
798 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1533 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
799 | if (block > to) block = to; |
1534 | if (waittime > to) waittime = to; |
800 | } |
1535 | } |
801 | |
1536 | |
|
|
1537 | #if EV_PERIODIC_ENABLE |
802 | if (periodiccnt) |
1538 | if (periodiccnt) |
803 | { |
1539 | { |
804 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1540 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
805 | if (block > to) block = to; |
1541 | if (waittime > to) waittime = to; |
806 | } |
1542 | } |
|
|
1543 | #endif |
807 | |
1544 | |
808 | if (block < 0.) block = 0.; |
1545 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1546 | waittime = timeout_blocktime; |
|
|
1547 | |
|
|
1548 | sleeptime = waittime - backend_fudge; |
|
|
1549 | |
|
|
1550 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1551 | sleeptime = io_blocktime; |
|
|
1552 | |
|
|
1553 | if (sleeptime) |
|
|
1554 | { |
|
|
1555 | ev_sleep (sleeptime); |
|
|
1556 | waittime -= sleeptime; |
|
|
1557 | } |
809 | } |
1558 | } |
810 | |
1559 | |
811 | method_poll (block); |
1560 | ++loop_count; |
|
|
1561 | backend_poll (EV_A_ waittime); |
812 | |
1562 | |
813 | /* update ev_now, do magic */ |
1563 | /* update ev_rt_now, do magic */ |
814 | time_update (); |
1564 | time_update (EV_A_ waittime + sleeptime); |
|
|
1565 | } |
815 | |
1566 | |
816 | /* queue pending timers and reschedule them */ |
1567 | /* queue pending timers and reschedule them */ |
817 | timers_reify (); /* relative timers called last */ |
1568 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1569 | #if EV_PERIODIC_ENABLE |
818 | periodics_reify (); /* absolute timers called first */ |
1570 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1571 | #endif |
819 | |
1572 | |
|
|
1573 | #if EV_IDLE_ENABLE |
820 | /* queue idle watchers unless io or timers are pending */ |
1574 | /* queue idle watchers unless other events are pending */ |
821 | if (!pendingcnt) |
1575 | idle_reify (EV_A); |
822 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1576 | #endif |
823 | |
1577 | |
824 | /* queue check watchers, to be executed first */ |
1578 | /* queue check watchers, to be executed first */ |
825 | if (checkcnt) |
1579 | if (expect_false (checkcnt)) |
826 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1580 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
827 | |
1581 | |
828 | call_pending (); |
1582 | call_pending (EV_A); |
829 | } |
|
|
830 | while (!ev_loop_done); |
|
|
831 | |
1583 | |
832 | if (ev_loop_done != 2) |
1584 | } |
|
|
1585 | while (expect_true (activecnt && !loop_done)); |
|
|
1586 | |
|
|
1587 | if (loop_done == EVUNLOOP_ONE) |
|
|
1588 | loop_done = EVUNLOOP_CANCEL; |
|
|
1589 | } |
|
|
1590 | |
|
|
1591 | void |
|
|
1592 | ev_unloop (EV_P_ int how) |
|
|
1593 | { |
833 | ev_loop_done = 0; |
1594 | loop_done = how; |
834 | } |
1595 | } |
835 | |
1596 | |
836 | /*****************************************************************************/ |
1597 | /*****************************************************************************/ |
837 | |
1598 | |
838 | static void |
1599 | void inline_size |
839 | wlist_add (WL *head, WL elem) |
1600 | wlist_add (WL *head, WL elem) |
840 | { |
1601 | { |
841 | elem->next = *head; |
1602 | elem->next = *head; |
842 | *head = elem; |
1603 | *head = elem; |
843 | } |
1604 | } |
844 | |
1605 | |
845 | static void |
1606 | void inline_size |
846 | wlist_del (WL *head, WL elem) |
1607 | wlist_del (WL *head, WL elem) |
847 | { |
1608 | { |
848 | while (*head) |
1609 | while (*head) |
849 | { |
1610 | { |
850 | if (*head == elem) |
1611 | if (*head == elem) |
… | |
… | |
855 | |
1616 | |
856 | head = &(*head)->next; |
1617 | head = &(*head)->next; |
857 | } |
1618 | } |
858 | } |
1619 | } |
859 | |
1620 | |
860 | static void |
1621 | void inline_speed |
861 | ev_clear_pending (W w) |
1622 | clear_pending (EV_P_ W w) |
862 | { |
1623 | { |
863 | if (w->pending) |
1624 | if (w->pending) |
864 | { |
1625 | { |
865 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1626 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
866 | w->pending = 0; |
1627 | w->pending = 0; |
867 | } |
1628 | } |
868 | } |
1629 | } |
869 | |
1630 | |
870 | static void |
1631 | int |
|
|
1632 | ev_clear_pending (EV_P_ void *w) |
|
|
1633 | { |
|
|
1634 | W w_ = (W)w; |
|
|
1635 | int pending = w_->pending; |
|
|
1636 | |
|
|
1637 | if (expect_true (pending)) |
|
|
1638 | { |
|
|
1639 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1640 | w_->pending = 0; |
|
|
1641 | p->w = 0; |
|
|
1642 | return p->events; |
|
|
1643 | } |
|
|
1644 | else |
|
|
1645 | return 0; |
|
|
1646 | } |
|
|
1647 | |
|
|
1648 | void inline_size |
|
|
1649 | pri_adjust (EV_P_ W w) |
|
|
1650 | { |
|
|
1651 | int pri = w->priority; |
|
|
1652 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1653 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1654 | w->priority = pri; |
|
|
1655 | } |
|
|
1656 | |
|
|
1657 | void inline_speed |
871 | ev_start (W w, int active) |
1658 | ev_start (EV_P_ W w, int active) |
872 | { |
1659 | { |
873 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1660 | pri_adjust (EV_A_ w); |
874 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
875 | |
|
|
876 | w->active = active; |
1661 | w->active = active; |
|
|
1662 | ev_ref (EV_A); |
877 | } |
1663 | } |
878 | |
1664 | |
879 | static void |
1665 | void inline_size |
880 | ev_stop (W w) |
1666 | ev_stop (EV_P_ W w) |
881 | { |
1667 | { |
|
|
1668 | ev_unref (EV_A); |
882 | w->active = 0; |
1669 | w->active = 0; |
883 | } |
1670 | } |
884 | |
1671 | |
885 | /*****************************************************************************/ |
1672 | /*****************************************************************************/ |
886 | |
1673 | |
887 | void |
1674 | void noinline |
888 | ev_io_start (struct ev_io *w) |
1675 | ev_io_start (EV_P_ ev_io *w) |
889 | { |
1676 | { |
890 | int fd = w->fd; |
1677 | int fd = w->fd; |
891 | |
1678 | |
892 | if (ev_is_active (w)) |
1679 | if (expect_false (ev_is_active (w))) |
893 | return; |
1680 | return; |
894 | |
1681 | |
895 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1682 | assert (("ev_io_start called with negative fd", fd >= 0)); |
896 | |
1683 | |
897 | ev_start ((W)w, 1); |
1684 | ev_start (EV_A_ (W)w, 1); |
898 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1685 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
899 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1686 | wlist_add (&anfds[fd].head, (WL)w); |
900 | |
1687 | |
901 | fd_change (fd); |
1688 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1689 | w->events &= ~EV_IOFDSET; |
902 | } |
1690 | } |
903 | |
1691 | |
904 | void |
1692 | void noinline |
905 | ev_io_stop (struct ev_io *w) |
1693 | ev_io_stop (EV_P_ ev_io *w) |
906 | { |
1694 | { |
907 | ev_clear_pending ((W)w); |
1695 | clear_pending (EV_A_ (W)w); |
908 | if (!ev_is_active (w)) |
1696 | if (expect_false (!ev_is_active (w))) |
909 | return; |
1697 | return; |
910 | |
1698 | |
|
|
1699 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1700 | |
911 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1701 | wlist_del (&anfds[w->fd].head, (WL)w); |
912 | ev_stop ((W)w); |
1702 | ev_stop (EV_A_ (W)w); |
913 | |
1703 | |
914 | fd_change (w->fd); |
1704 | fd_change (EV_A_ w->fd, 1); |
915 | } |
1705 | } |
916 | |
1706 | |
917 | void |
1707 | void noinline |
918 | ev_timer_start (struct ev_timer *w) |
1708 | ev_timer_start (EV_P_ ev_timer *w) |
919 | { |
1709 | { |
920 | if (ev_is_active (w)) |
1710 | if (expect_false (ev_is_active (w))) |
921 | return; |
1711 | return; |
922 | |
1712 | |
923 | w->at += now; |
1713 | ((WT)w)->at += mn_now; |
924 | |
1714 | |
925 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1715 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
926 | |
1716 | |
927 | ev_start ((W)w, ++timercnt); |
1717 | ev_start (EV_A_ (W)w, ++timercnt); |
928 | array_needsize (timers, timermax, timercnt, ); |
1718 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
929 | timers [timercnt - 1] = w; |
1719 | timers [timercnt - 1] = (WT)w; |
930 | upheap ((WT *)timers, timercnt - 1); |
1720 | upheap (timers, timercnt - 1); |
931 | } |
|
|
932 | |
1721 | |
933 | void |
1722 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1723 | } |
|
|
1724 | |
|
|
1725 | void noinline |
934 | ev_timer_stop (struct ev_timer *w) |
1726 | ev_timer_stop (EV_P_ ev_timer *w) |
935 | { |
1727 | { |
936 | ev_clear_pending ((W)w); |
1728 | clear_pending (EV_A_ (W)w); |
937 | if (!ev_is_active (w)) |
1729 | if (expect_false (!ev_is_active (w))) |
938 | return; |
1730 | return; |
939 | |
1731 | |
940 | if (w->active < timercnt--) |
1732 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1733 | |
|
|
1734 | { |
|
|
1735 | int active = ((W)w)->active; |
|
|
1736 | |
|
|
1737 | if (expect_true (--active < --timercnt)) |
941 | { |
1738 | { |
942 | timers [w->active - 1] = timers [timercnt]; |
1739 | timers [active] = timers [timercnt]; |
943 | downheap ((WT *)timers, timercnt, w->active - 1); |
1740 | adjustheap (timers, timercnt, active); |
944 | } |
1741 | } |
|
|
1742 | } |
945 | |
1743 | |
946 | w->at = w->repeat; |
1744 | ((WT)w)->at -= mn_now; |
947 | |
1745 | |
948 | ev_stop ((W)w); |
1746 | ev_stop (EV_A_ (W)w); |
949 | } |
1747 | } |
950 | |
1748 | |
951 | void |
1749 | void noinline |
952 | ev_timer_again (struct ev_timer *w) |
1750 | ev_timer_again (EV_P_ ev_timer *w) |
953 | { |
1751 | { |
954 | if (ev_is_active (w)) |
1752 | if (ev_is_active (w)) |
955 | { |
1753 | { |
956 | if (w->repeat) |
1754 | if (w->repeat) |
957 | { |
1755 | { |
958 | w->at = now + w->repeat; |
1756 | ((WT)w)->at = mn_now + w->repeat; |
959 | downheap ((WT *)timers, timercnt, w->active - 1); |
1757 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
960 | } |
1758 | } |
961 | else |
1759 | else |
962 | ev_timer_stop (w); |
1760 | ev_timer_stop (EV_A_ w); |
963 | } |
1761 | } |
964 | else if (w->repeat) |
1762 | else if (w->repeat) |
|
|
1763 | { |
|
|
1764 | w->at = w->repeat; |
965 | ev_timer_start (w); |
1765 | ev_timer_start (EV_A_ w); |
|
|
1766 | } |
966 | } |
1767 | } |
967 | |
1768 | |
968 | void |
1769 | #if EV_PERIODIC_ENABLE |
|
|
1770 | void noinline |
969 | ev_periodic_start (struct ev_periodic *w) |
1771 | ev_periodic_start (EV_P_ ev_periodic *w) |
970 | { |
1772 | { |
971 | if (ev_is_active (w)) |
1773 | if (expect_false (ev_is_active (w))) |
972 | return; |
1774 | return; |
973 | |
1775 | |
|
|
1776 | if (w->reschedule_cb) |
|
|
1777 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1778 | else if (w->interval) |
|
|
1779 | { |
974 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1780 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
975 | |
|
|
976 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1781 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
977 | if (w->interval) |
|
|
978 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1782 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1783 | } |
|
|
1784 | else |
|
|
1785 | ((WT)w)->at = w->offset; |
979 | |
1786 | |
980 | ev_start ((W)w, ++periodiccnt); |
1787 | ev_start (EV_A_ (W)w, ++periodiccnt); |
981 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1788 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
982 | periodics [periodiccnt - 1] = w; |
1789 | periodics [periodiccnt - 1] = (WT)w; |
983 | upheap ((WT *)periodics, periodiccnt - 1); |
1790 | upheap (periodics, periodiccnt - 1); |
984 | } |
|
|
985 | |
1791 | |
986 | void |
1792 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1793 | } |
|
|
1794 | |
|
|
1795 | void noinline |
987 | ev_periodic_stop (struct ev_periodic *w) |
1796 | ev_periodic_stop (EV_P_ ev_periodic *w) |
988 | { |
1797 | { |
989 | ev_clear_pending ((W)w); |
1798 | clear_pending (EV_A_ (W)w); |
990 | if (!ev_is_active (w)) |
1799 | if (expect_false (!ev_is_active (w))) |
991 | return; |
1800 | return; |
992 | |
1801 | |
993 | if (w->active < periodiccnt--) |
1802 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1803 | |
|
|
1804 | { |
|
|
1805 | int active = ((W)w)->active; |
|
|
1806 | |
|
|
1807 | if (expect_true (--active < --periodiccnt)) |
994 | { |
1808 | { |
995 | periodics [w->active - 1] = periodics [periodiccnt]; |
1809 | periodics [active] = periodics [periodiccnt]; |
996 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1810 | adjustheap (periodics, periodiccnt, active); |
997 | } |
1811 | } |
|
|
1812 | } |
998 | |
1813 | |
999 | ev_stop ((W)w); |
1814 | ev_stop (EV_A_ (W)w); |
1000 | } |
1815 | } |
1001 | |
1816 | |
1002 | void |
1817 | void noinline |
|
|
1818 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1819 | { |
|
|
1820 | /* TODO: use adjustheap and recalculation */ |
|
|
1821 | ev_periodic_stop (EV_A_ w); |
|
|
1822 | ev_periodic_start (EV_A_ w); |
|
|
1823 | } |
|
|
1824 | #endif |
|
|
1825 | |
|
|
1826 | #ifndef SA_RESTART |
|
|
1827 | # define SA_RESTART 0 |
|
|
1828 | #endif |
|
|
1829 | |
|
|
1830 | void noinline |
1003 | ev_signal_start (struct ev_signal *w) |
1831 | ev_signal_start (EV_P_ ev_signal *w) |
1004 | { |
1832 | { |
|
|
1833 | #if EV_MULTIPLICITY |
|
|
1834 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1835 | #endif |
1005 | if (ev_is_active (w)) |
1836 | if (expect_false (ev_is_active (w))) |
1006 | return; |
1837 | return; |
1007 | |
1838 | |
1008 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1839 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1009 | |
1840 | |
1010 | ev_start ((W)w, 1); |
1841 | { |
|
|
1842 | #ifndef _WIN32 |
|
|
1843 | sigset_t full, prev; |
|
|
1844 | sigfillset (&full); |
|
|
1845 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1846 | #endif |
|
|
1847 | |
1011 | array_needsize (signals, signalmax, w->signum, signals_init); |
1848 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1849 | |
|
|
1850 | #ifndef _WIN32 |
|
|
1851 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1852 | #endif |
|
|
1853 | } |
|
|
1854 | |
|
|
1855 | ev_start (EV_A_ (W)w, 1); |
1012 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1856 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1013 | |
1857 | |
1014 | if (!w->next) |
1858 | if (!((WL)w)->next) |
1015 | { |
1859 | { |
|
|
1860 | #if _WIN32 |
|
|
1861 | signal (w->signum, sighandler); |
|
|
1862 | #else |
1016 | struct sigaction sa; |
1863 | struct sigaction sa; |
1017 | sa.sa_handler = sighandler; |
1864 | sa.sa_handler = sighandler; |
1018 | sigfillset (&sa.sa_mask); |
1865 | sigfillset (&sa.sa_mask); |
1019 | sa.sa_flags = 0; |
1866 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1020 | sigaction (w->signum, &sa, 0); |
1867 | sigaction (w->signum, &sa, 0); |
|
|
1868 | #endif |
1021 | } |
1869 | } |
1022 | } |
1870 | } |
1023 | |
1871 | |
1024 | void |
1872 | void noinline |
1025 | ev_signal_stop (struct ev_signal *w) |
1873 | ev_signal_stop (EV_P_ ev_signal *w) |
1026 | { |
1874 | { |
1027 | ev_clear_pending ((W)w); |
1875 | clear_pending (EV_A_ (W)w); |
1028 | if (!ev_is_active (w)) |
1876 | if (expect_false (!ev_is_active (w))) |
1029 | return; |
1877 | return; |
1030 | |
1878 | |
1031 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1879 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1032 | ev_stop ((W)w); |
1880 | ev_stop (EV_A_ (W)w); |
1033 | |
1881 | |
1034 | if (!signals [w->signum - 1].head) |
1882 | if (!signals [w->signum - 1].head) |
1035 | signal (w->signum, SIG_DFL); |
1883 | signal (w->signum, SIG_DFL); |
1036 | } |
1884 | } |
1037 | |
1885 | |
1038 | void |
1886 | void |
1039 | ev_idle_start (struct ev_idle *w) |
1887 | ev_child_start (EV_P_ ev_child *w) |
1040 | { |
1888 | { |
|
|
1889 | #if EV_MULTIPLICITY |
|
|
1890 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1891 | #endif |
1041 | if (ev_is_active (w)) |
1892 | if (expect_false (ev_is_active (w))) |
1042 | return; |
1893 | return; |
1043 | |
1894 | |
1044 | ev_start ((W)w, ++idlecnt); |
1895 | ev_start (EV_A_ (W)w, 1); |
1045 | array_needsize (idles, idlemax, idlecnt, ); |
1896 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1046 | idles [idlecnt - 1] = w; |
|
|
1047 | } |
1897 | } |
1048 | |
1898 | |
1049 | void |
1899 | void |
1050 | ev_idle_stop (struct ev_idle *w) |
1900 | ev_child_stop (EV_P_ ev_child *w) |
1051 | { |
1901 | { |
1052 | ev_clear_pending ((W)w); |
1902 | clear_pending (EV_A_ (W)w); |
1053 | if (ev_is_active (w)) |
1903 | if (expect_false (!ev_is_active (w))) |
1054 | return; |
1904 | return; |
1055 | |
1905 | |
1056 | idles [w->active - 1] = idles [--idlecnt]; |
1906 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1057 | ev_stop ((W)w); |
1907 | ev_stop (EV_A_ (W)w); |
1058 | } |
1908 | } |
1059 | |
1909 | |
|
|
1910 | #if EV_STAT_ENABLE |
|
|
1911 | |
|
|
1912 | # ifdef _WIN32 |
|
|
1913 | # undef lstat |
|
|
1914 | # define lstat(a,b) _stati64 (a,b) |
|
|
1915 | # endif |
|
|
1916 | |
|
|
1917 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1918 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1919 | |
|
|
1920 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1921 | |
|
|
1922 | #if EV_USE_INOTIFY |
|
|
1923 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1924 | |
|
|
1925 | static void noinline |
|
|
1926 | infy_add (EV_P_ ev_stat *w) |
|
|
1927 | { |
|
|
1928 | 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); |
|
|
1929 | |
|
|
1930 | if (w->wd < 0) |
|
|
1931 | { |
|
|
1932 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1933 | |
|
|
1934 | /* monitor some parent directory for speedup hints */ |
|
|
1935 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1936 | { |
|
|
1937 | char path [4096]; |
|
|
1938 | strcpy (path, w->path); |
|
|
1939 | |
|
|
1940 | do |
|
|
1941 | { |
|
|
1942 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1943 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1944 | |
|
|
1945 | char *pend = strrchr (path, '/'); |
|
|
1946 | |
|
|
1947 | if (!pend) |
|
|
1948 | break; /* whoops, no '/', complain to your admin */ |
|
|
1949 | |
|
|
1950 | *pend = 0; |
|
|
1951 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1952 | } |
|
|
1953 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1954 | } |
|
|
1955 | } |
|
|
1956 | else |
|
|
1957 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1958 | |
|
|
1959 | if (w->wd >= 0) |
|
|
1960 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1961 | } |
|
|
1962 | |
|
|
1963 | static void noinline |
|
|
1964 | infy_del (EV_P_ ev_stat *w) |
|
|
1965 | { |
|
|
1966 | int slot; |
|
|
1967 | int wd = w->wd; |
|
|
1968 | |
|
|
1969 | if (wd < 0) |
|
|
1970 | return; |
|
|
1971 | |
|
|
1972 | w->wd = -2; |
|
|
1973 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1974 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1975 | |
|
|
1976 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1977 | inotify_rm_watch (fs_fd, wd); |
|
|
1978 | } |
|
|
1979 | |
|
|
1980 | static void noinline |
|
|
1981 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1982 | { |
|
|
1983 | if (slot < 0) |
|
|
1984 | /* overflow, need to check for all hahs slots */ |
|
|
1985 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1986 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1987 | else |
|
|
1988 | { |
|
|
1989 | WL w_; |
|
|
1990 | |
|
|
1991 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1992 | { |
|
|
1993 | ev_stat *w = (ev_stat *)w_; |
|
|
1994 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1995 | |
|
|
1996 | if (w->wd == wd || wd == -1) |
|
|
1997 | { |
|
|
1998 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1999 | { |
|
|
2000 | w->wd = -1; |
|
|
2001 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2002 | } |
|
|
2003 | |
|
|
2004 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2005 | } |
|
|
2006 | } |
|
|
2007 | } |
|
|
2008 | } |
|
|
2009 | |
|
|
2010 | static void |
|
|
2011 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2012 | { |
|
|
2013 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2014 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2015 | int ofs; |
|
|
2016 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2017 | |
|
|
2018 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2019 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2020 | } |
|
|
2021 | |
|
|
2022 | void inline_size |
|
|
2023 | infy_init (EV_P) |
|
|
2024 | { |
|
|
2025 | if (fs_fd != -2) |
|
|
2026 | return; |
|
|
2027 | |
|
|
2028 | fs_fd = inotify_init (); |
|
|
2029 | |
|
|
2030 | if (fs_fd >= 0) |
|
|
2031 | { |
|
|
2032 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2033 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2034 | ev_io_start (EV_A_ &fs_w); |
|
|
2035 | } |
|
|
2036 | } |
|
|
2037 | |
|
|
2038 | void inline_size |
|
|
2039 | infy_fork (EV_P) |
|
|
2040 | { |
|
|
2041 | int slot; |
|
|
2042 | |
|
|
2043 | if (fs_fd < 0) |
|
|
2044 | return; |
|
|
2045 | |
|
|
2046 | close (fs_fd); |
|
|
2047 | fs_fd = inotify_init (); |
|
|
2048 | |
|
|
2049 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2050 | { |
|
|
2051 | WL w_ = fs_hash [slot].head; |
|
|
2052 | fs_hash [slot].head = 0; |
|
|
2053 | |
|
|
2054 | while (w_) |
|
|
2055 | { |
|
|
2056 | ev_stat *w = (ev_stat *)w_; |
|
|
2057 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2058 | |
|
|
2059 | w->wd = -1; |
|
|
2060 | |
|
|
2061 | if (fs_fd >= 0) |
|
|
2062 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2063 | else |
|
|
2064 | ev_timer_start (EV_A_ &w->timer); |
|
|
2065 | } |
|
|
2066 | |
|
|
2067 | } |
|
|
2068 | } |
|
|
2069 | |
|
|
2070 | #endif |
|
|
2071 | |
1060 | void |
2072 | void |
|
|
2073 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2074 | { |
|
|
2075 | if (lstat (w->path, &w->attr) < 0) |
|
|
2076 | w->attr.st_nlink = 0; |
|
|
2077 | else if (!w->attr.st_nlink) |
|
|
2078 | w->attr.st_nlink = 1; |
|
|
2079 | } |
|
|
2080 | |
|
|
2081 | static void noinline |
|
|
2082 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2083 | { |
|
|
2084 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2085 | |
|
|
2086 | /* we copy this here each the time so that */ |
|
|
2087 | /* prev has the old value when the callback gets invoked */ |
|
|
2088 | w->prev = w->attr; |
|
|
2089 | ev_stat_stat (EV_A_ w); |
|
|
2090 | |
|
|
2091 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2092 | if ( |
|
|
2093 | w->prev.st_dev != w->attr.st_dev |
|
|
2094 | || w->prev.st_ino != w->attr.st_ino |
|
|
2095 | || w->prev.st_mode != w->attr.st_mode |
|
|
2096 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2097 | || w->prev.st_uid != w->attr.st_uid |
|
|
2098 | || w->prev.st_gid != w->attr.st_gid |
|
|
2099 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2100 | || w->prev.st_size != w->attr.st_size |
|
|
2101 | || w->prev.st_atime != w->attr.st_atime |
|
|
2102 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2103 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2104 | ) { |
|
|
2105 | #if EV_USE_INOTIFY |
|
|
2106 | infy_del (EV_A_ w); |
|
|
2107 | infy_add (EV_A_ w); |
|
|
2108 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2109 | #endif |
|
|
2110 | |
|
|
2111 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2112 | } |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | void |
|
|
2116 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2117 | { |
|
|
2118 | if (expect_false (ev_is_active (w))) |
|
|
2119 | return; |
|
|
2120 | |
|
|
2121 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2122 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2123 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2124 | |
|
|
2125 | ev_stat_stat (EV_A_ w); |
|
|
2126 | |
|
|
2127 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2128 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2129 | |
|
|
2130 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2131 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2132 | |
|
|
2133 | #if EV_USE_INOTIFY |
|
|
2134 | infy_init (EV_A); |
|
|
2135 | |
|
|
2136 | if (fs_fd >= 0) |
|
|
2137 | infy_add (EV_A_ w); |
|
|
2138 | else |
|
|
2139 | #endif |
|
|
2140 | ev_timer_start (EV_A_ &w->timer); |
|
|
2141 | |
|
|
2142 | ev_start (EV_A_ (W)w, 1); |
|
|
2143 | } |
|
|
2144 | |
|
|
2145 | void |
|
|
2146 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2147 | { |
|
|
2148 | clear_pending (EV_A_ (W)w); |
|
|
2149 | if (expect_false (!ev_is_active (w))) |
|
|
2150 | return; |
|
|
2151 | |
|
|
2152 | #if EV_USE_INOTIFY |
|
|
2153 | infy_del (EV_A_ w); |
|
|
2154 | #endif |
|
|
2155 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2156 | |
|
|
2157 | ev_stop (EV_A_ (W)w); |
|
|
2158 | } |
|
|
2159 | #endif |
|
|
2160 | |
|
|
2161 | #if EV_IDLE_ENABLE |
|
|
2162 | void |
|
|
2163 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2164 | { |
|
|
2165 | if (expect_false (ev_is_active (w))) |
|
|
2166 | return; |
|
|
2167 | |
|
|
2168 | pri_adjust (EV_A_ (W)w); |
|
|
2169 | |
|
|
2170 | { |
|
|
2171 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2172 | |
|
|
2173 | ++idleall; |
|
|
2174 | ev_start (EV_A_ (W)w, active); |
|
|
2175 | |
|
|
2176 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2177 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2178 | } |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | void |
|
|
2182 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2183 | { |
|
|
2184 | clear_pending (EV_A_ (W)w); |
|
|
2185 | if (expect_false (!ev_is_active (w))) |
|
|
2186 | return; |
|
|
2187 | |
|
|
2188 | { |
|
|
2189 | int active = ((W)w)->active; |
|
|
2190 | |
|
|
2191 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2192 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2193 | |
|
|
2194 | ev_stop (EV_A_ (W)w); |
|
|
2195 | --idleall; |
|
|
2196 | } |
|
|
2197 | } |
|
|
2198 | #endif |
|
|
2199 | |
|
|
2200 | void |
1061 | ev_prepare_start (struct ev_prepare *w) |
2201 | ev_prepare_start (EV_P_ ev_prepare *w) |
1062 | { |
2202 | { |
1063 | if (ev_is_active (w)) |
2203 | if (expect_false (ev_is_active (w))) |
1064 | return; |
2204 | return; |
1065 | |
2205 | |
1066 | ev_start ((W)w, ++preparecnt); |
2206 | ev_start (EV_A_ (W)w, ++preparecnt); |
1067 | array_needsize (prepares, preparemax, preparecnt, ); |
2207 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1068 | prepares [preparecnt - 1] = w; |
2208 | prepares [preparecnt - 1] = w; |
1069 | } |
2209 | } |
1070 | |
2210 | |
1071 | void |
2211 | void |
1072 | ev_prepare_stop (struct ev_prepare *w) |
2212 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1073 | { |
2213 | { |
1074 | ev_clear_pending ((W)w); |
2214 | clear_pending (EV_A_ (W)w); |
1075 | if (ev_is_active (w)) |
2215 | if (expect_false (!ev_is_active (w))) |
1076 | return; |
2216 | return; |
1077 | |
2217 | |
|
|
2218 | { |
|
|
2219 | int active = ((W)w)->active; |
1078 | prepares [w->active - 1] = prepares [--preparecnt]; |
2220 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2221 | ((W)prepares [active - 1])->active = active; |
|
|
2222 | } |
|
|
2223 | |
1079 | ev_stop ((W)w); |
2224 | ev_stop (EV_A_ (W)w); |
1080 | } |
2225 | } |
1081 | |
2226 | |
1082 | void |
2227 | void |
1083 | ev_check_start (struct ev_check *w) |
2228 | ev_check_start (EV_P_ ev_check *w) |
1084 | { |
2229 | { |
1085 | if (ev_is_active (w)) |
2230 | if (expect_false (ev_is_active (w))) |
1086 | return; |
2231 | return; |
1087 | |
2232 | |
1088 | ev_start ((W)w, ++checkcnt); |
2233 | ev_start (EV_A_ (W)w, ++checkcnt); |
1089 | array_needsize (checks, checkmax, checkcnt, ); |
2234 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1090 | checks [checkcnt - 1] = w; |
2235 | checks [checkcnt - 1] = w; |
1091 | } |
2236 | } |
1092 | |
2237 | |
1093 | void |
2238 | void |
1094 | ev_check_stop (struct ev_check *w) |
2239 | ev_check_stop (EV_P_ ev_check *w) |
1095 | { |
2240 | { |
1096 | ev_clear_pending ((W)w); |
2241 | clear_pending (EV_A_ (W)w); |
1097 | if (ev_is_active (w)) |
2242 | if (expect_false (!ev_is_active (w))) |
1098 | return; |
2243 | return; |
1099 | |
2244 | |
|
|
2245 | { |
|
|
2246 | int active = ((W)w)->active; |
1100 | checks [w->active - 1] = checks [--checkcnt]; |
2247 | checks [active - 1] = checks [--checkcnt]; |
|
|
2248 | ((W)checks [active - 1])->active = active; |
|
|
2249 | } |
|
|
2250 | |
1101 | ev_stop ((W)w); |
2251 | ev_stop (EV_A_ (W)w); |
1102 | } |
2252 | } |
1103 | |
2253 | |
1104 | void |
2254 | #if EV_EMBED_ENABLE |
1105 | ev_child_start (struct ev_child *w) |
2255 | void noinline |
|
|
2256 | ev_embed_sweep (EV_P_ ev_embed *w) |
1106 | { |
2257 | { |
|
|
2258 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | static void |
|
|
2262 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2263 | { |
|
|
2264 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2265 | |
1107 | if (ev_is_active (w)) |
2266 | if (ev_cb (w)) |
1108 | return; |
2267 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2268 | else |
|
|
2269 | ev_embed_sweep (loop, w); |
|
|
2270 | } |
1109 | |
2271 | |
|
|
2272 | static void |
|
|
2273 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2274 | { |
|
|
2275 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2276 | |
|
|
2277 | fd_reify (w->other); |
|
|
2278 | } |
|
|
2279 | |
|
|
2280 | void |
|
|
2281 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2282 | { |
|
|
2283 | if (expect_false (ev_is_active (w))) |
|
|
2284 | return; |
|
|
2285 | |
|
|
2286 | { |
|
|
2287 | struct ev_loop *loop = w->other; |
|
|
2288 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2289 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2290 | } |
|
|
2291 | |
|
|
2292 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2293 | ev_io_start (EV_A_ &w->io); |
|
|
2294 | |
|
|
2295 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2296 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2297 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2298 | |
1110 | ev_start ((W)w, 1); |
2299 | ev_start (EV_A_ (W)w, 1); |
1111 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1112 | } |
2300 | } |
1113 | |
2301 | |
1114 | void |
2302 | void |
1115 | ev_child_stop (struct ev_child *w) |
2303 | ev_embed_stop (EV_P_ ev_embed *w) |
1116 | { |
2304 | { |
1117 | ev_clear_pending ((W)w); |
2305 | clear_pending (EV_A_ (W)w); |
1118 | if (ev_is_active (w)) |
2306 | if (expect_false (!ev_is_active (w))) |
1119 | return; |
2307 | return; |
1120 | |
2308 | |
1121 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2309 | ev_io_stop (EV_A_ &w->io); |
|
|
2310 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2311 | |
1122 | ev_stop ((W)w); |
2312 | ev_stop (EV_A_ (W)w); |
1123 | } |
2313 | } |
|
|
2314 | #endif |
|
|
2315 | |
|
|
2316 | #if EV_FORK_ENABLE |
|
|
2317 | void |
|
|
2318 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2319 | { |
|
|
2320 | if (expect_false (ev_is_active (w))) |
|
|
2321 | return; |
|
|
2322 | |
|
|
2323 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2324 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2325 | forks [forkcnt - 1] = w; |
|
|
2326 | } |
|
|
2327 | |
|
|
2328 | void |
|
|
2329 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2330 | { |
|
|
2331 | clear_pending (EV_A_ (W)w); |
|
|
2332 | if (expect_false (!ev_is_active (w))) |
|
|
2333 | return; |
|
|
2334 | |
|
|
2335 | { |
|
|
2336 | int active = ((W)w)->active; |
|
|
2337 | forks [active - 1] = forks [--forkcnt]; |
|
|
2338 | ((W)forks [active - 1])->active = active; |
|
|
2339 | } |
|
|
2340 | |
|
|
2341 | ev_stop (EV_A_ (W)w); |
|
|
2342 | } |
|
|
2343 | #endif |
1124 | |
2344 | |
1125 | /*****************************************************************************/ |
2345 | /*****************************************************************************/ |
1126 | |
2346 | |
1127 | struct ev_once |
2347 | struct ev_once |
1128 | { |
2348 | { |
1129 | struct ev_io io; |
2349 | ev_io io; |
1130 | struct ev_timer to; |
2350 | ev_timer to; |
1131 | void (*cb)(int revents, void *arg); |
2351 | void (*cb)(int revents, void *arg); |
1132 | void *arg; |
2352 | void *arg; |
1133 | }; |
2353 | }; |
1134 | |
2354 | |
1135 | static void |
2355 | static void |
1136 | once_cb (struct ev_once *once, int revents) |
2356 | once_cb (EV_P_ struct ev_once *once, int revents) |
1137 | { |
2357 | { |
1138 | void (*cb)(int revents, void *arg) = once->cb; |
2358 | void (*cb)(int revents, void *arg) = once->cb; |
1139 | void *arg = once->arg; |
2359 | void *arg = once->arg; |
1140 | |
2360 | |
1141 | ev_io_stop (&once->io); |
2361 | ev_io_stop (EV_A_ &once->io); |
1142 | ev_timer_stop (&once->to); |
2362 | ev_timer_stop (EV_A_ &once->to); |
1143 | free (once); |
2363 | ev_free (once); |
1144 | |
2364 | |
1145 | cb (revents, arg); |
2365 | cb (revents, arg); |
1146 | } |
2366 | } |
1147 | |
2367 | |
1148 | static void |
2368 | static void |
1149 | once_cb_io (struct ev_io *w, int revents) |
2369 | once_cb_io (EV_P_ ev_io *w, int revents) |
1150 | { |
2370 | { |
1151 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2371 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1152 | } |
2372 | } |
1153 | |
2373 | |
1154 | static void |
2374 | static void |
1155 | once_cb_to (struct ev_timer *w, int revents) |
2375 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1156 | { |
2376 | { |
1157 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2377 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1158 | } |
2378 | } |
1159 | |
2379 | |
1160 | void |
2380 | void |
1161 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2381 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1162 | { |
2382 | { |
1163 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2383 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1164 | |
2384 | |
1165 | if (!once) |
2385 | if (expect_false (!once)) |
|
|
2386 | { |
1166 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2387 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1167 | else |
2388 | return; |
1168 | { |
2389 | } |
|
|
2390 | |
1169 | once->cb = cb; |
2391 | once->cb = cb; |
1170 | once->arg = arg; |
2392 | once->arg = arg; |
1171 | |
2393 | |
1172 | ev_watcher_init (&once->io, once_cb_io); |
2394 | ev_init (&once->io, once_cb_io); |
1173 | if (fd >= 0) |
2395 | if (fd >= 0) |
1174 | { |
2396 | { |
1175 | ev_io_set (&once->io, fd, events); |
2397 | ev_io_set (&once->io, fd, events); |
1176 | ev_io_start (&once->io); |
2398 | ev_io_start (EV_A_ &once->io); |
1177 | } |
2399 | } |
1178 | |
2400 | |
1179 | ev_watcher_init (&once->to, once_cb_to); |
2401 | ev_init (&once->to, once_cb_to); |
1180 | if (timeout >= 0.) |
2402 | if (timeout >= 0.) |
1181 | { |
2403 | { |
1182 | ev_timer_set (&once->to, timeout, 0.); |
2404 | ev_timer_set (&once->to, timeout, 0.); |
1183 | ev_timer_start (&once->to); |
2405 | ev_timer_start (EV_A_ &once->to); |
1184 | } |
|
|
1185 | } |
|
|
1186 | } |
|
|
1187 | |
|
|
1188 | /*****************************************************************************/ |
|
|
1189 | |
|
|
1190 | #if 0 |
|
|
1191 | |
|
|
1192 | struct ev_io wio; |
|
|
1193 | |
|
|
1194 | static void |
|
|
1195 | sin_cb (struct ev_io *w, int revents) |
|
|
1196 | { |
|
|
1197 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1198 | } |
|
|
1199 | |
|
|
1200 | static void |
|
|
1201 | ocb (struct ev_timer *w, int revents) |
|
|
1202 | { |
|
|
1203 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1204 | ev_timer_stop (w); |
|
|
1205 | ev_timer_start (w); |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | static void |
|
|
1209 | scb (struct ev_signal *w, int revents) |
|
|
1210 | { |
|
|
1211 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1212 | ev_io_stop (&wio); |
|
|
1213 | ev_io_start (&wio); |
|
|
1214 | } |
|
|
1215 | |
|
|
1216 | static void |
|
|
1217 | gcb (struct ev_signal *w, int revents) |
|
|
1218 | { |
|
|
1219 | fprintf (stderr, "generic %x\n", revents); |
|
|
1220 | |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | int main (void) |
|
|
1224 | { |
|
|
1225 | ev_init (0); |
|
|
1226 | |
|
|
1227 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1228 | ev_io_start (&wio); |
|
|
1229 | |
|
|
1230 | struct ev_timer t[10000]; |
|
|
1231 | |
|
|
1232 | #if 0 |
|
|
1233 | int i; |
|
|
1234 | for (i = 0; i < 10000; ++i) |
|
|
1235 | { |
2406 | } |
1236 | struct ev_timer *w = t + i; |
|
|
1237 | ev_watcher_init (w, ocb, i); |
|
|
1238 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1239 | ev_timer_start (w); |
|
|
1240 | if (drand48 () < 0.5) |
|
|
1241 | ev_timer_stop (w); |
|
|
1242 | } |
|
|
1243 | #endif |
|
|
1244 | |
|
|
1245 | struct ev_timer t1; |
|
|
1246 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1247 | ev_timer_start (&t1); |
|
|
1248 | |
|
|
1249 | struct ev_signal sig; |
|
|
1250 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1251 | ev_signal_start (&sig); |
|
|
1252 | |
|
|
1253 | struct ev_check cw; |
|
|
1254 | ev_check_init (&cw, gcb); |
|
|
1255 | ev_check_start (&cw); |
|
|
1256 | |
|
|
1257 | struct ev_idle iw; |
|
|
1258 | ev_idle_init (&iw, gcb); |
|
|
1259 | ev_idle_start (&iw); |
|
|
1260 | |
|
|
1261 | ev_loop (0); |
|
|
1262 | |
|
|
1263 | return 0; |
|
|
1264 | } |
2407 | } |
1265 | |
2408 | |
|
|
2409 | #if EV_MULTIPLICITY |
|
|
2410 | #include "ev_wrap.h" |
1266 | #endif |
2411 | #endif |
1267 | |
2412 | |
|
|
2413 | #ifdef __cplusplus |
|
|
2414 | } |
|
|
2415 | #endif |
1268 | |
2416 | |
1269 | |
|
|
1270 | |
|
|