… | |
… | |
42 | #include <stdio.h> |
42 | #include <stdio.h> |
43 | |
43 | |
44 | #include <assert.h> |
44 | #include <assert.h> |
45 | #include <errno.h> |
45 | #include <errno.h> |
46 | #include <sys/types.h> |
46 | #include <sys/types.h> |
|
|
47 | #ifndef WIN32 |
47 | #include <sys/wait.h> |
48 | # include <sys/wait.h> |
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|
49 | #endif |
48 | #include <sys/time.h> |
50 | #include <sys/time.h> |
49 | #include <time.h> |
51 | #include <time.h> |
50 | |
52 | |
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53 | /**/ |
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54 | |
51 | #ifndef EV_USE_MONOTONIC |
55 | #ifndef EV_USE_MONOTONIC |
52 | # ifdef CLOCK_MONOTONIC |
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53 | # define EV_USE_MONOTONIC 1 |
56 | # define EV_USE_MONOTONIC 1 |
54 | # endif |
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55 | #endif |
57 | #endif |
56 | |
58 | |
57 | #ifndef EV_USE_SELECT |
59 | #ifndef EV_USE_SELECT |
58 | # define EV_USE_SELECT 1 |
60 | # define EV_USE_SELECT 1 |
59 | #endif |
61 | #endif |
60 | |
62 | |
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63 | #ifndef EV_USE_POLL |
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64 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
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65 | #endif |
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66 | |
61 | #ifndef EV_USE_EPOLL |
67 | #ifndef EV_USE_EPOLL |
62 | # define EV_USE_EPOLL 0 |
68 | # define EV_USE_EPOLL 0 |
63 | #endif |
69 | #endif |
64 | |
70 | |
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71 | #ifndef EV_USE_KQUEUE |
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72 | # define EV_USE_KQUEUE 0 |
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73 | #endif |
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74 | |
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75 | #ifndef EV_USE_REALTIME |
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76 | # define EV_USE_REALTIME 1 |
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77 | #endif |
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78 | |
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79 | /**/ |
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80 | |
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81 | #ifndef CLOCK_MONOTONIC |
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82 | # undef EV_USE_MONOTONIC |
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83 | # define EV_USE_MONOTONIC 0 |
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84 | #endif |
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85 | |
65 | #ifndef CLOCK_REALTIME |
86 | #ifndef CLOCK_REALTIME |
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|
87 | # undef EV_USE_REALTIME |
66 | # define EV_USE_REALTIME 0 |
88 | # define EV_USE_REALTIME 0 |
67 | #endif |
89 | #endif |
68 | #ifndef EV_USE_REALTIME |
90 | |
69 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
91 | /**/ |
70 | #endif |
|
|
71 | |
92 | |
72 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
73 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */ |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
74 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
75 | #define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
76 | |
97 | |
77 | #include "ev.h" |
98 | #include "ev.h" |
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99 | |
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100 | #if __GNUC__ >= 3 |
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101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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102 | # define inline inline |
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103 | #else |
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104 | # define expect(expr,value) (expr) |
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105 | # define inline static |
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106 | #endif |
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107 | |
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108 | #define expect_false(expr) expect ((expr) != 0, 0) |
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109 | #define expect_true(expr) expect ((expr) != 0, 1) |
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110 | |
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111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
78 | |
113 | |
79 | typedef struct ev_watcher *W; |
114 | typedef struct ev_watcher *W; |
80 | typedef struct ev_watcher_list *WL; |
115 | typedef struct ev_watcher_list *WL; |
81 | typedef struct ev_watcher_time *WT; |
116 | typedef struct ev_watcher_time *WT; |
82 | |
117 | |
83 | static ev_tstamp now, diff; /* monotonic clock */ |
118 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
84 | ev_tstamp ev_now; |
119 | ev_tstamp ev_now; |
85 | int ev_method; |
120 | int ev_method; |
86 | |
121 | |
87 | static int have_monotonic; /* runtime */ |
122 | static int have_monotonic; /* runtime */ |
88 | |
123 | |
… | |
… | |
108 | |
143 | |
109 | static ev_tstamp |
144 | static ev_tstamp |
110 | get_clock (void) |
145 | get_clock (void) |
111 | { |
146 | { |
112 | #if EV_USE_MONOTONIC |
147 | #if EV_USE_MONOTONIC |
113 | if (have_monotonic) |
148 | if (expect_true (have_monotonic)) |
114 | { |
149 | { |
115 | struct timespec ts; |
150 | struct timespec ts; |
116 | clock_gettime (CLOCK_MONOTONIC, &ts); |
151 | clock_gettime (CLOCK_MONOTONIC, &ts); |
117 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
152 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
118 | } |
153 | } |
… | |
… | |
122 | } |
157 | } |
123 | |
158 | |
124 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
159 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
125 | |
160 | |
126 | #define array_needsize(base,cur,cnt,init) \ |
161 | #define array_needsize(base,cur,cnt,init) \ |
127 | if ((cnt) > cur) \ |
162 | if (expect_false ((cnt) > cur)) \ |
128 | { \ |
163 | { \ |
129 | int newcnt = cur; \ |
164 | int newcnt = cur; \ |
130 | do \ |
165 | do \ |
131 | { \ |
166 | { \ |
132 | newcnt = array_roundsize (base, newcnt << 1); \ |
167 | newcnt = array_roundsize (base, newcnt << 1); \ |
… | |
… | |
167 | { |
202 | { |
168 | W w; |
203 | W w; |
169 | int events; |
204 | int events; |
170 | } ANPENDING; |
205 | } ANPENDING; |
171 | |
206 | |
172 | static ANPENDING *pendings; |
207 | static ANPENDING *pendings [NUMPRI]; |
173 | static int pendingmax, pendingcnt; |
208 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
174 | |
209 | |
175 | static void |
210 | static void |
176 | event (W w, int events) |
211 | event (W w, int events) |
177 | { |
212 | { |
178 | if (w->pending) |
213 | if (w->pending) |
179 | { |
214 | { |
180 | pendings [w->pending - 1].events |= events; |
215 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
181 | return; |
216 | return; |
182 | } |
217 | } |
183 | |
218 | |
184 | w->pending = ++pendingcnt; |
219 | w->pending = ++pendingcnt [ABSPRI (w)]; |
185 | array_needsize (pendings, pendingmax, pendingcnt, ); |
220 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
186 | pendings [pendingcnt - 1].w = w; |
221 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
187 | pendings [pendingcnt - 1].events = events; |
222 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
188 | } |
223 | } |
189 | |
224 | |
190 | static void |
225 | static void |
191 | queue_events (W *events, int eventcnt, int type) |
226 | queue_events (W *events, int eventcnt, int type) |
192 | { |
227 | { |
… | |
… | |
255 | ++fdchangecnt; |
290 | ++fdchangecnt; |
256 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
291 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
257 | fdchanges [fdchangecnt - 1] = fd; |
292 | fdchanges [fdchangecnt - 1] = fd; |
258 | } |
293 | } |
259 | |
294 | |
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295 | static void |
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296 | fd_kill (int fd) |
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297 | { |
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298 | struct ev_io *w; |
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299 | |
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300 | printf ("killing fd %d\n", fd);//D |
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301 | while ((w = anfds [fd].head)) |
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302 | { |
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303 | ev_io_stop (w); |
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304 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
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305 | } |
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306 | } |
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307 | |
260 | /* called on EBADF to verify fds */ |
308 | /* called on EBADF to verify fds */ |
261 | static void |
309 | static void |
262 | fd_recheck (void) |
310 | fd_ebadf (void) |
263 | { |
311 | { |
264 | int fd; |
312 | int fd; |
265 | |
313 | |
266 | for (fd = 0; fd < anfdmax; ++fd) |
314 | for (fd = 0; fd < anfdmax; ++fd) |
267 | if (anfds [fd].events) |
315 | if (anfds [fd].events) |
268 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
316 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
269 | while (anfds [fd].head) |
317 | fd_kill (fd); |
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318 | } |
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319 | |
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320 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
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321 | static void |
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322 | fd_enomem (void) |
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323 | { |
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324 | int fd = anfdmax; |
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325 | |
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326 | while (fd--) |
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327 | if (anfds [fd].events) |
270 | { |
328 | { |
271 | ev_io_stop (anfds [fd].head); |
329 | close (fd); |
272 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE); |
330 | fd_kill (fd); |
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|
331 | return; |
273 | } |
332 | } |
274 | } |
333 | } |
275 | |
334 | |
276 | /*****************************************************************************/ |
335 | /*****************************************************************************/ |
277 | |
336 | |
278 | static struct ev_timer **timers; |
337 | static struct ev_timer **timers; |
… | |
… | |
363 | |
422 | |
364 | static void |
423 | static void |
365 | sigcb (struct ev_io *iow, int revents) |
424 | sigcb (struct ev_io *iow, int revents) |
366 | { |
425 | { |
367 | struct ev_signal *w; |
426 | struct ev_signal *w; |
368 | int sig; |
427 | int signum; |
369 | |
428 | |
370 | read (sigpipe [0], &revents, 1); |
429 | read (sigpipe [0], &revents, 1); |
371 | gotsig = 0; |
430 | gotsig = 0; |
372 | |
431 | |
373 | for (sig = signalmax; sig--; ) |
432 | for (signum = signalmax; signum--; ) |
374 | if (signals [sig].gotsig) |
433 | if (signals [signum].gotsig) |
375 | { |
434 | { |
376 | signals [sig].gotsig = 0; |
435 | signals [signum].gotsig = 0; |
377 | |
436 | |
378 | for (w = signals [sig].head; w; w = w->next) |
437 | for (w = signals [signum].head; w; w = w->next) |
379 | event ((W)w, EV_SIGNAL); |
438 | event ((W)w, EV_SIGNAL); |
380 | } |
439 | } |
381 | } |
440 | } |
382 | |
441 | |
383 | static void |
442 | static void |
384 | siginit (void) |
443 | siginit (void) |
385 | { |
444 | { |
|
|
445 | #ifndef WIN32 |
386 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
446 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
387 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
447 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
388 | |
448 | |
389 | /* rather than sort out wether we really need nb, set it */ |
449 | /* rather than sort out wether we really need nb, set it */ |
390 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
450 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
391 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
451 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
452 | #endif |
392 | |
453 | |
393 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
454 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
394 | ev_io_start (&sigev); |
455 | ev_io_start (&sigev); |
395 | } |
456 | } |
396 | |
457 | |
… | |
… | |
408 | /*****************************************************************************/ |
469 | /*****************************************************************************/ |
409 | |
470 | |
410 | static struct ev_child *childs [PID_HASHSIZE]; |
471 | static struct ev_child *childs [PID_HASHSIZE]; |
411 | static struct ev_signal childev; |
472 | static struct ev_signal childev; |
412 | |
473 | |
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|
474 | #ifndef WIN32 |
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475 | |
413 | #ifndef WCONTINUED |
476 | #ifndef WCONTINUED |
414 | # define WCONTINUED 0 |
477 | # define WCONTINUED 0 |
415 | #endif |
478 | #endif |
416 | |
479 | |
417 | static void |
480 | static void |
… | |
… | |
420 | struct ev_child *w; |
483 | struct ev_child *w; |
421 | int pid, status; |
484 | int pid, status; |
422 | |
485 | |
423 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
486 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
424 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
487 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
425 | if (w->pid == pid || w->pid == -1) |
488 | if (w->pid == pid || !w->pid) |
426 | { |
489 | { |
427 | w->status = status; |
490 | w->status = status; |
428 | event ((W)w, EV_CHILD); |
491 | event ((W)w, EV_CHILD); |
429 | } |
492 | } |
430 | } |
493 | } |
431 | |
494 | |
432 | /*****************************************************************************/ |
495 | #endif |
433 | |
496 | |
|
|
497 | /*****************************************************************************/ |
|
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498 | |
|
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499 | #if EV_USE_KQUEUE |
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500 | # include "ev_kqueue.c" |
|
|
501 | #endif |
434 | #if EV_USE_EPOLL |
502 | #if EV_USE_EPOLL |
435 | # include "ev_epoll.c" |
503 | # include "ev_epoll.c" |
436 | #endif |
504 | #endif |
|
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505 | #if EV_USE_POLL |
|
|
506 | # include "ev_poll.c" |
|
|
507 | #endif |
437 | #if EV_USE_SELECT |
508 | #if EV_USE_SELECT |
438 | # include "ev_select.c" |
509 | # include "ev_select.c" |
439 | #endif |
510 | #endif |
440 | |
511 | |
441 | int |
512 | int |
… | |
… | |
448 | ev_version_minor (void) |
519 | ev_version_minor (void) |
449 | { |
520 | { |
450 | return EV_VERSION_MINOR; |
521 | return EV_VERSION_MINOR; |
451 | } |
522 | } |
452 | |
523 | |
|
|
524 | /* return true if we are running with elevated privileges and ignore env variables */ |
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525 | static int |
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526 | enable_secure () |
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527 | { |
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528 | return getuid () != geteuid () |
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529 | || getgid () != getegid (); |
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530 | } |
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531 | |
453 | int ev_init (int flags) |
532 | int ev_init (int methods) |
454 | { |
533 | { |
455 | if (!ev_method) |
534 | if (!ev_method) |
456 | { |
535 | { |
457 | #if EV_USE_MONOTONIC |
536 | #if EV_USE_MONOTONIC |
458 | { |
537 | { |
… | |
… | |
460 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
539 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
461 | have_monotonic = 1; |
540 | have_monotonic = 1; |
462 | } |
541 | } |
463 | #endif |
542 | #endif |
464 | |
543 | |
465 | ev_now = ev_time (); |
544 | ev_now = ev_time (); |
466 | now = get_clock (); |
545 | now = get_clock (); |
|
|
546 | now_floor = now; |
467 | diff = ev_now - now; |
547 | diff = ev_now - now; |
468 | |
548 | |
469 | if (pipe (sigpipe)) |
549 | if (pipe (sigpipe)) |
470 | return 0; |
550 | return 0; |
471 | |
551 | |
|
|
552 | if (methods == EVMETHOD_AUTO) |
|
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553 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
|
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554 | methods = atoi (getenv ("LIBEV_METHODS")); |
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555 | else |
472 | ev_method = EVMETHOD_NONE; |
556 | methods = EVMETHOD_ANY; |
|
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557 | |
|
|
558 | ev_method = 0; |
|
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559 | #if EV_USE_KQUEUE |
|
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560 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
|
|
561 | #endif |
473 | #if EV_USE_EPOLL |
562 | #if EV_USE_EPOLL |
474 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
563 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
|
|
564 | #endif |
|
|
565 | #if EV_USE_POLL |
|
|
566 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
475 | #endif |
567 | #endif |
476 | #if EV_USE_SELECT |
568 | #if EV_USE_SELECT |
477 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
569 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
478 | #endif |
570 | #endif |
479 | |
571 | |
480 | if (ev_method) |
572 | if (ev_method) |
481 | { |
573 | { |
482 | ev_watcher_init (&sigev, sigcb); |
574 | ev_watcher_init (&sigev, sigcb); |
483 | siginit (); |
575 | siginit (); |
484 | |
576 | |
|
|
577 | #ifndef WIN32 |
485 | ev_signal_init (&childev, childcb, SIGCHLD); |
578 | ev_signal_init (&childev, childcb, SIGCHLD); |
486 | ev_signal_start (&childev); |
579 | ev_signal_start (&childev); |
|
|
580 | #endif |
487 | } |
581 | } |
488 | } |
582 | } |
489 | |
583 | |
490 | return ev_method; |
584 | return ev_method; |
491 | } |
585 | } |
… | |
… | |
522 | /*****************************************************************************/ |
616 | /*****************************************************************************/ |
523 | |
617 | |
524 | static void |
618 | static void |
525 | call_pending (void) |
619 | call_pending (void) |
526 | { |
620 | { |
|
|
621 | int pri; |
|
|
622 | |
|
|
623 | for (pri = NUMPRI; pri--; ) |
527 | while (pendingcnt) |
624 | while (pendingcnt [pri]) |
528 | { |
625 | { |
529 | ANPENDING *p = pendings + --pendingcnt; |
626 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
530 | |
627 | |
531 | if (p->w) |
628 | if (p->w) |
532 | { |
629 | { |
533 | p->w->pending = 0; |
630 | p->w->pending = 0; |
534 | p->w->cb (p->w, p->events); |
631 | p->w->cb (p->w, p->events); |
535 | } |
632 | } |
536 | } |
633 | } |
537 | } |
634 | } |
538 | |
635 | |
539 | static void |
636 | static void |
540 | timers_reify (void) |
637 | timers_reify (void) |
541 | { |
638 | { |
… | |
… | |
601 | } |
698 | } |
602 | } |
699 | } |
603 | } |
700 | } |
604 | } |
701 | } |
605 | |
702 | |
|
|
703 | static int |
|
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704 | time_update_monotonic (void) |
|
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705 | { |
|
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706 | now = get_clock (); |
|
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707 | |
|
|
708 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
709 | { |
|
|
710 | ev_now = now + diff; |
|
|
711 | return 0; |
|
|
712 | } |
|
|
713 | else |
|
|
714 | { |
|
|
715 | now_floor = now; |
|
|
716 | ev_now = ev_time (); |
|
|
717 | return 1; |
|
|
718 | } |
|
|
719 | } |
|
|
720 | |
606 | static void |
721 | static void |
607 | time_update (void) |
722 | time_update (void) |
608 | { |
723 | { |
609 | int i; |
724 | int i; |
610 | |
725 | |
611 | ev_now = ev_time (); |
726 | #if EV_USE_MONOTONIC |
612 | |
|
|
613 | if (have_monotonic) |
727 | if (expect_true (have_monotonic)) |
614 | { |
728 | { |
|
|
729 | if (time_update_monotonic ()) |
|
|
730 | { |
615 | ev_tstamp odiff = diff; |
731 | ev_tstamp odiff = diff; |
616 | |
732 | |
617 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
733 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
618 | { |
734 | { |
619 | now = get_clock (); |
|
|
620 | diff = ev_now - now; |
735 | diff = ev_now - now; |
621 | |
736 | |
622 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
737 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
623 | return; /* all is well */ |
738 | return; /* all is well */ |
624 | |
739 | |
625 | ev_now = ev_time (); |
740 | ev_now = ev_time (); |
|
|
741 | now = get_clock (); |
|
|
742 | now_floor = now; |
626 | } |
743 | } |
627 | |
744 | |
628 | periodics_reschedule (diff - odiff); |
745 | periodics_reschedule (diff - odiff); |
629 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
746 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
747 | } |
630 | } |
748 | } |
631 | else |
749 | else |
|
|
750 | #endif |
632 | { |
751 | { |
|
|
752 | ev_now = ev_time (); |
|
|
753 | |
633 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
754 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
634 | { |
755 | { |
635 | periodics_reschedule (ev_now - now); |
756 | periodics_reschedule (ev_now - now); |
636 | |
757 | |
637 | /* adjust timers. this is easy, as the offset is the same for all */ |
758 | /* adjust timers. this is easy, as the offset is the same for all */ |
638 | for (i = 0; i < timercnt; ++i) |
759 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
651 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
772 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
652 | |
773 | |
653 | do |
774 | do |
654 | { |
775 | { |
655 | /* queue check watchers (and execute them) */ |
776 | /* queue check watchers (and execute them) */ |
656 | if (preparecnt) |
777 | if (expect_false (preparecnt)) |
657 | { |
778 | { |
658 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
779 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
659 | call_pending (); |
780 | call_pending (); |
660 | } |
781 | } |
661 | |
782 | |
… | |
… | |
664 | |
785 | |
665 | /* calculate blocking time */ |
786 | /* calculate blocking time */ |
666 | |
787 | |
667 | /* we only need this for !monotonic clockor timers, but as we basically |
788 | /* we only need this for !monotonic clockor timers, but as we basically |
668 | always have timers, we just calculate it always */ |
789 | always have timers, we just calculate it always */ |
|
|
790 | #if EV_USE_MONOTONIC |
|
|
791 | if (expect_true (have_monotonic)) |
|
|
792 | time_update_monotonic (); |
|
|
793 | else |
|
|
794 | #endif |
|
|
795 | { |
669 | ev_now = ev_time (); |
796 | ev_now = ev_time (); |
|
|
797 | now = ev_now; |
|
|
798 | } |
670 | |
799 | |
671 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
800 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
672 | block = 0.; |
801 | block = 0.; |
673 | else |
802 | else |
674 | { |
803 | { |
675 | block = MAX_BLOCKTIME; |
804 | block = MAX_BLOCKTIME; |
676 | |
805 | |
677 | if (timercnt) |
806 | if (timercnt) |
678 | { |
807 | { |
679 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
808 | ev_tstamp to = timers [0]->at - now + method_fudge; |
680 | if (block > to) block = to; |
809 | if (block > to) block = to; |
681 | } |
810 | } |
682 | |
811 | |
683 | if (periodiccnt) |
812 | if (periodiccnt) |
684 | { |
813 | { |
… | |
… | |
741 | static void |
870 | static void |
742 | ev_clear_pending (W w) |
871 | ev_clear_pending (W w) |
743 | { |
872 | { |
744 | if (w->pending) |
873 | if (w->pending) |
745 | { |
874 | { |
746 | pendings [w->pending - 1].w = 0; |
875 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
747 | w->pending = 0; |
876 | w->pending = 0; |
748 | } |
877 | } |
749 | } |
878 | } |
750 | |
879 | |
751 | static void |
880 | static void |
752 | ev_start (W w, int active) |
881 | ev_start (W w, int active) |
753 | { |
882 | { |
|
|
883 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
884 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
885 | |
754 | w->active = active; |
886 | w->active = active; |
755 | } |
887 | } |
756 | |
888 | |
757 | static void |
889 | static void |
758 | ev_stop (W w) |
890 | ev_stop (W w) |
… | |
… | |
763 | /*****************************************************************************/ |
895 | /*****************************************************************************/ |
764 | |
896 | |
765 | void |
897 | void |
766 | ev_io_start (struct ev_io *w) |
898 | ev_io_start (struct ev_io *w) |
767 | { |
899 | { |
|
|
900 | int fd = w->fd; |
|
|
901 | |
768 | if (ev_is_active (w)) |
902 | if (ev_is_active (w)) |
769 | return; |
903 | return; |
770 | |
|
|
771 | int fd = w->fd; |
|
|
772 | |
904 | |
773 | assert (("ev_io_start called with negative fd", fd >= 0)); |
905 | assert (("ev_io_start called with negative fd", fd >= 0)); |
774 | |
906 | |
775 | ev_start ((W)w, 1); |
907 | ev_start ((W)w, 1); |
776 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
908 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |