1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
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52 | # if HAVE_CLOCK_SYSCALL |
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53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
164 | # endif |
178 | # endif |
165 | #endif |
179 | #endif |
166 | |
180 | |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
168 | |
182 | |
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183 | #ifndef EV_USE_CLOCK_SYSCALL |
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184 | # if __linux && __GLIBC__ >= 2 |
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185 | # define EV_USE_CLOCK_SYSCALL 1 |
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186 | # else |
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187 | # define EV_USE_CLOCK_SYSCALL 0 |
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188 | # endif |
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189 | #endif |
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190 | |
169 | #ifndef EV_USE_MONOTONIC |
191 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
193 | # define EV_USE_MONOTONIC 1 |
172 | # else |
194 | # else |
173 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
196 | # endif |
175 | #endif |
197 | #endif |
176 | |
198 | |
177 | #ifndef EV_USE_REALTIME |
199 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
201 | #endif |
180 | |
202 | |
181 | #ifndef EV_USE_NANOSLEEP |
203 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
204 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
205 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
262 | |
284 | |
263 | #ifndef EV_HEAP_CACHE_AT |
285 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
265 | #endif |
287 | #endif |
266 | |
288 | |
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|
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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290 | /* which makes programs even slower. might work on other unices, too. */ |
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291 | #if EV_USE_CLOCK_SYSCALL |
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292 | # include <syscall.h> |
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293 | # ifdef SYS_clock_gettime |
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294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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295 | # undef EV_USE_MONOTONIC |
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296 | # define EV_USE_MONOTONIC 1 |
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297 | # else |
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298 | # undef EV_USE_CLOCK_SYSCALL |
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299 | # define EV_USE_CLOCK_SYSCALL 0 |
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300 | # endif |
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301 | #endif |
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302 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
268 | |
304 | |
269 | #ifndef CLOCK_MONOTONIC |
305 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
307 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
287 | # endif |
323 | # endif |
288 | #endif |
324 | #endif |
289 | |
325 | |
290 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
291 | # include <sys/utsname.h> |
327 | # include <sys/utsname.h> |
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|
328 | # include <sys/statfs.h> |
292 | # include <sys/inotify.h> |
329 | # include <sys/inotify.h> |
293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
294 | # ifndef IN_DONT_FOLLOW |
331 | # ifndef IN_DONT_FOLLOW |
295 | # undef EV_USE_INOTIFY |
332 | # undef EV_USE_INOTIFY |
296 | # define EV_USE_INOTIFY 0 |
333 | # define EV_USE_INOTIFY 0 |
… | |
… | |
354 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
355 | #else |
392 | #else |
356 | # define inline_speed static inline |
393 | # define inline_speed static inline |
357 | #endif |
394 | #endif |
358 | |
395 | |
359 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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397 | |
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398 | #if EV_MINPRI == EV_MAXPRI |
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399 | # define ABSPRI(w) (((W)w), 0) |
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400 | #else |
360 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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|
402 | #endif |
361 | |
403 | |
362 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
363 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
364 | |
406 | |
365 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
… | |
… | |
367 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
368 | |
410 | |
369 | #define ev_active(w) ((W)(w))->active |
411 | #define ev_active(w) ((W)(w))->active |
370 | #define ev_at(w) ((WT)(w))->at |
412 | #define ev_at(w) ((WT)(w))->at |
371 | |
413 | |
372 | #if EV_USE_MONOTONIC |
414 | #if EV_USE_REALTIME |
373 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
374 | /* giving it a reasonably high chance of working on typical architetcures */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
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417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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418 | #endif |
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419 | |
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420 | #if EV_USE_MONOTONIC |
375 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
376 | #endif |
422 | #endif |
377 | |
423 | |
378 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
379 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
… | |
… | |
388 | { |
434 | { |
389 | syserr_cb = cb; |
435 | syserr_cb = cb; |
390 | } |
436 | } |
391 | |
437 | |
392 | static void noinline |
438 | static void noinline |
393 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
394 | { |
440 | { |
395 | if (!msg) |
441 | if (!msg) |
396 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
397 | |
443 | |
398 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
444 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
445 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
446 | |
492 | |
447 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
448 | |
494 | |
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|
495 | /* file descriptor info structure */ |
449 | typedef struct |
496 | typedef struct |
450 | { |
497 | { |
451 | WL head; |
498 | WL head; |
452 | unsigned char events; |
499 | unsigned char events; /* the events watched for */ |
453 | unsigned char reify; |
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
454 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
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|
502 | unsigned char unused; |
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503 | #if EV_USE_EPOLL |
455 | unsigned char egen; /* generation counter to counter epoll bugs */ |
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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|
505 | #endif |
456 | #if EV_SELECT_IS_WINSOCKET |
506 | #if EV_SELECT_IS_WINSOCKET |
457 | SOCKET handle; |
507 | SOCKET handle; |
458 | #endif |
508 | #endif |
459 | } ANFD; |
509 | } ANFD; |
460 | |
510 | |
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|
511 | /* stores the pending event set for a given watcher */ |
461 | typedef struct |
512 | typedef struct |
462 | { |
513 | { |
463 | W w; |
514 | W w; |
464 | int events; |
515 | int events; /* the pending event set for the given watcher */ |
465 | } ANPENDING; |
516 | } ANPENDING; |
466 | |
517 | |
467 | #if EV_USE_INOTIFY |
518 | #if EV_USE_INOTIFY |
468 | /* hash table entry per inotify-id */ |
519 | /* hash table entry per inotify-id */ |
469 | typedef struct |
520 | typedef struct |
… | |
… | |
472 | } ANFS; |
523 | } ANFS; |
473 | #endif |
524 | #endif |
474 | |
525 | |
475 | /* Heap Entry */ |
526 | /* Heap Entry */ |
476 | #if EV_HEAP_CACHE_AT |
527 | #if EV_HEAP_CACHE_AT |
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|
528 | /* a heap element */ |
477 | typedef struct { |
529 | typedef struct { |
478 | ev_tstamp at; |
530 | ev_tstamp at; |
479 | WT w; |
531 | WT w; |
480 | } ANHE; |
532 | } ANHE; |
481 | |
533 | |
482 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
534 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
483 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
535 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
484 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
536 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
485 | #else |
537 | #else |
|
|
538 | /* a heap element */ |
486 | typedef WT ANHE; |
539 | typedef WT ANHE; |
487 | |
540 | |
488 | #define ANHE_w(he) (he) |
541 | #define ANHE_w(he) (he) |
489 | #define ANHE_at(he) (he)->at |
542 | #define ANHE_at(he) (he)->at |
490 | #define ANHE_at_cache(he) |
543 | #define ANHE_at_cache(he) |
… | |
… | |
514 | |
567 | |
515 | static int ev_default_loop_ptr; |
568 | static int ev_default_loop_ptr; |
516 | |
569 | |
517 | #endif |
570 | #endif |
518 | |
571 | |
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572 | #if EV_MINIMAL < 2 |
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573 | # define EV_SUSPEND_CB if (expect_false (suspend_cb)) suspend_cb (EV_A) |
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574 | # define EV_RESUME_CB if (expect_false (resume_cb )) resume_cb (EV_A) |
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575 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
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576 | #else |
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577 | # define EV_SUSPEND_CB (void)0 |
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578 | # define EV_RESUME_CB (void)0 |
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579 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
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580 | #endif |
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581 | |
519 | /*****************************************************************************/ |
582 | /*****************************************************************************/ |
520 | |
583 | |
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584 | #ifndef EV_HAVE_EV_TIME |
521 | ev_tstamp |
585 | ev_tstamp |
522 | ev_time (void) |
586 | ev_time (void) |
523 | { |
587 | { |
524 | #if EV_USE_REALTIME |
588 | #if EV_USE_REALTIME |
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589 | if (expect_true (have_realtime)) |
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590 | { |
525 | struct timespec ts; |
591 | struct timespec ts; |
526 | clock_gettime (CLOCK_REALTIME, &ts); |
592 | clock_gettime (CLOCK_REALTIME, &ts); |
527 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
593 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
528 | #else |
594 | } |
|
|
595 | #endif |
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596 | |
529 | struct timeval tv; |
597 | struct timeval tv; |
530 | gettimeofday (&tv, 0); |
598 | gettimeofday (&tv, 0); |
531 | return tv.tv_sec + tv.tv_usec * 1e-6; |
599 | return tv.tv_sec + tv.tv_usec * 1e-6; |
532 | #endif |
|
|
533 | } |
600 | } |
|
|
601 | #endif |
534 | |
602 | |
535 | ev_tstamp inline_size |
603 | inline_size ev_tstamp |
536 | get_clock (void) |
604 | get_clock (void) |
537 | { |
605 | { |
538 | #if EV_USE_MONOTONIC |
606 | #if EV_USE_MONOTONIC |
539 | if (expect_true (have_monotonic)) |
607 | if (expect_true (have_monotonic)) |
540 | { |
608 | { |
… | |
… | |
574 | |
642 | |
575 | tv.tv_sec = (time_t)delay; |
643 | tv.tv_sec = (time_t)delay; |
576 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
644 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
577 | |
645 | |
578 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
646 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
579 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
647 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
580 | /* by older ones */ |
648 | /* by older ones */ |
581 | select (0, 0, 0, 0, &tv); |
649 | select (0, 0, 0, 0, &tv); |
582 | #endif |
650 | #endif |
583 | } |
651 | } |
584 | } |
652 | } |
585 | |
653 | |
586 | /*****************************************************************************/ |
654 | /*****************************************************************************/ |
587 | |
655 | |
588 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
656 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
589 | |
657 | |
590 | int inline_size |
658 | /* find a suitable new size for the given array, */ |
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659 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
660 | inline_size int |
591 | array_nextsize (int elem, int cur, int cnt) |
661 | array_nextsize (int elem, int cur, int cnt) |
592 | { |
662 | { |
593 | int ncur = cur + 1; |
663 | int ncur = cur + 1; |
594 | |
664 | |
595 | do |
665 | do |
… | |
… | |
636 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
706 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
637 | } |
707 | } |
638 | #endif |
708 | #endif |
639 | |
709 | |
640 | #define array_free(stem, idx) \ |
710 | #define array_free(stem, idx) \ |
641 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
711 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
642 | |
712 | |
643 | /*****************************************************************************/ |
713 | /*****************************************************************************/ |
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714 | |
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715 | /* dummy callback for pending events */ |
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716 | static void noinline |
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|
717 | pendingcb (EV_P_ ev_prepare *w, int revents) |
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718 | { |
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719 | } |
644 | |
720 | |
645 | void noinline |
721 | void noinline |
646 | ev_feed_event (EV_P_ void *w, int revents) |
722 | ev_feed_event (EV_P_ void *w, int revents) |
647 | { |
723 | { |
648 | W w_ = (W)w; |
724 | W w_ = (W)w; |
… | |
… | |
657 | pendings [pri][w_->pending - 1].w = w_; |
733 | pendings [pri][w_->pending - 1].w = w_; |
658 | pendings [pri][w_->pending - 1].events = revents; |
734 | pendings [pri][w_->pending - 1].events = revents; |
659 | } |
735 | } |
660 | } |
736 | } |
661 | |
737 | |
662 | void inline_speed |
738 | inline_speed void |
|
|
739 | feed_reverse (EV_P_ W w) |
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|
740 | { |
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|
741 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
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742 | rfeeds [rfeedcnt++] = w; |
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|
743 | } |
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|
744 | |
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745 | inline_size void |
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746 | feed_reverse_done (EV_P_ int revents) |
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|
747 | { |
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|
748 | do |
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749 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
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750 | while (rfeedcnt); |
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|
751 | } |
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752 | |
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753 | inline_speed void |
663 | queue_events (EV_P_ W *events, int eventcnt, int type) |
754 | queue_events (EV_P_ W *events, int eventcnt, int type) |
664 | { |
755 | { |
665 | int i; |
756 | int i; |
666 | |
757 | |
667 | for (i = 0; i < eventcnt; ++i) |
758 | for (i = 0; i < eventcnt; ++i) |
668 | ev_feed_event (EV_A_ events [i], type); |
759 | ev_feed_event (EV_A_ events [i], type); |
669 | } |
760 | } |
670 | |
761 | |
671 | /*****************************************************************************/ |
762 | /*****************************************************************************/ |
672 | |
763 | |
673 | void inline_speed |
764 | inline_speed void |
674 | fd_event (EV_P_ int fd, int revents) |
765 | fd_event (EV_P_ int fd, int revents) |
675 | { |
766 | { |
676 | ANFD *anfd = anfds + fd; |
767 | ANFD *anfd = anfds + fd; |
677 | ev_io *w; |
768 | ev_io *w; |
678 | |
769 | |
… | |
… | |
690 | { |
781 | { |
691 | if (fd >= 0 && fd < anfdmax) |
782 | if (fd >= 0 && fd < anfdmax) |
692 | fd_event (EV_A_ fd, revents); |
783 | fd_event (EV_A_ fd, revents); |
693 | } |
784 | } |
694 | |
785 | |
695 | void inline_size |
786 | /* make sure the external fd watch events are in-sync */ |
|
|
787 | /* with the kernel/libev internal state */ |
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|
788 | inline_size void |
696 | fd_reify (EV_P) |
789 | fd_reify (EV_P) |
697 | { |
790 | { |
698 | int i; |
791 | int i; |
699 | |
792 | |
700 | for (i = 0; i < fdchangecnt; ++i) |
793 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
715 | #ifdef EV_FD_TO_WIN32_HANDLE |
808 | #ifdef EV_FD_TO_WIN32_HANDLE |
716 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
809 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
717 | #else |
810 | #else |
718 | anfd->handle = _get_osfhandle (fd); |
811 | anfd->handle = _get_osfhandle (fd); |
719 | #endif |
812 | #endif |
720 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
813 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
721 | } |
814 | } |
722 | #endif |
815 | #endif |
723 | |
816 | |
724 | { |
817 | { |
725 | unsigned char o_events = anfd->events; |
818 | unsigned char o_events = anfd->events; |
726 | unsigned char o_reify = anfd->reify; |
819 | unsigned char o_reify = anfd->reify; |
727 | |
820 | |
728 | anfd->reify = 0; |
821 | anfd->reify = 0; |
729 | anfd->events = events; |
822 | anfd->events = events; |
730 | |
823 | |
731 | if (o_events != events || o_reify & EV_IOFDSET) |
824 | if (o_events != events || o_reify & EV__IOFDSET) |
732 | backend_modify (EV_A_ fd, o_events, events); |
825 | backend_modify (EV_A_ fd, o_events, events); |
733 | } |
826 | } |
734 | } |
827 | } |
735 | |
828 | |
736 | fdchangecnt = 0; |
829 | fdchangecnt = 0; |
737 | } |
830 | } |
738 | |
831 | |
739 | void inline_size |
832 | /* something about the given fd changed */ |
|
|
833 | inline_size void |
740 | fd_change (EV_P_ int fd, int flags) |
834 | fd_change (EV_P_ int fd, int flags) |
741 | { |
835 | { |
742 | unsigned char reify = anfds [fd].reify; |
836 | unsigned char reify = anfds [fd].reify; |
743 | anfds [fd].reify |= flags; |
837 | anfds [fd].reify |= flags; |
744 | |
838 | |
… | |
… | |
748 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
842 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
749 | fdchanges [fdchangecnt - 1] = fd; |
843 | fdchanges [fdchangecnt - 1] = fd; |
750 | } |
844 | } |
751 | } |
845 | } |
752 | |
846 | |
753 | void inline_speed |
847 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
848 | inline_speed void |
754 | fd_kill (EV_P_ int fd) |
849 | fd_kill (EV_P_ int fd) |
755 | { |
850 | { |
756 | ev_io *w; |
851 | ev_io *w; |
757 | |
852 | |
758 | while ((w = (ev_io *)anfds [fd].head)) |
853 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
760 | ev_io_stop (EV_A_ w); |
855 | ev_io_stop (EV_A_ w); |
761 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
856 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
762 | } |
857 | } |
763 | } |
858 | } |
764 | |
859 | |
765 | int inline_size |
860 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
861 | inline_size int |
766 | fd_valid (int fd) |
862 | fd_valid (int fd) |
767 | { |
863 | { |
768 | #ifdef _WIN32 |
864 | #ifdef _WIN32 |
769 | return _get_osfhandle (fd) != -1; |
865 | return _get_osfhandle (fd) != -1; |
770 | #else |
866 | #else |
… | |
… | |
806 | |
902 | |
807 | for (fd = 0; fd < anfdmax; ++fd) |
903 | for (fd = 0; fd < anfdmax; ++fd) |
808 | if (anfds [fd].events) |
904 | if (anfds [fd].events) |
809 | { |
905 | { |
810 | anfds [fd].events = 0; |
906 | anfds [fd].events = 0; |
|
|
907 | anfds [fd].emask = 0; |
811 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
908 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
812 | } |
909 | } |
813 | } |
910 | } |
814 | |
911 | |
815 | /*****************************************************************************/ |
912 | /*****************************************************************************/ |
816 | |
913 | |
… | |
… | |
832 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
929 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
833 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
930 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
834 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
931 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
835 | |
932 | |
836 | /* away from the root */ |
933 | /* away from the root */ |
837 | void inline_speed |
934 | inline_speed void |
838 | downheap (ANHE *heap, int N, int k) |
935 | downheap (ANHE *heap, int N, int k) |
839 | { |
936 | { |
840 | ANHE he = heap [k]; |
937 | ANHE he = heap [k]; |
841 | ANHE *E = heap + N + HEAP0; |
938 | ANHE *E = heap + N + HEAP0; |
842 | |
939 | |
… | |
… | |
882 | #define HEAP0 1 |
979 | #define HEAP0 1 |
883 | #define HPARENT(k) ((k) >> 1) |
980 | #define HPARENT(k) ((k) >> 1) |
884 | #define UPHEAP_DONE(p,k) (!(p)) |
981 | #define UPHEAP_DONE(p,k) (!(p)) |
885 | |
982 | |
886 | /* away from the root */ |
983 | /* away from the root */ |
887 | void inline_speed |
984 | inline_speed void |
888 | downheap (ANHE *heap, int N, int k) |
985 | downheap (ANHE *heap, int N, int k) |
889 | { |
986 | { |
890 | ANHE he = heap [k]; |
987 | ANHE he = heap [k]; |
891 | |
988 | |
892 | for (;;) |
989 | for (;;) |
… | |
… | |
912 | ev_active (ANHE_w (he)) = k; |
1009 | ev_active (ANHE_w (he)) = k; |
913 | } |
1010 | } |
914 | #endif |
1011 | #endif |
915 | |
1012 | |
916 | /* towards the root */ |
1013 | /* towards the root */ |
917 | void inline_speed |
1014 | inline_speed void |
918 | upheap (ANHE *heap, int k) |
1015 | upheap (ANHE *heap, int k) |
919 | { |
1016 | { |
920 | ANHE he = heap [k]; |
1017 | ANHE he = heap [k]; |
921 | |
1018 | |
922 | for (;;) |
1019 | for (;;) |
… | |
… | |
933 | |
1030 | |
934 | heap [k] = he; |
1031 | heap [k] = he; |
935 | ev_active (ANHE_w (he)) = k; |
1032 | ev_active (ANHE_w (he)) = k; |
936 | } |
1033 | } |
937 | |
1034 | |
938 | void inline_size |
1035 | /* move an element suitably so it is in a correct place */ |
|
|
1036 | inline_size void |
939 | adjustheap (ANHE *heap, int N, int k) |
1037 | adjustheap (ANHE *heap, int N, int k) |
940 | { |
1038 | { |
941 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1039 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
942 | upheap (heap, k); |
1040 | upheap (heap, k); |
943 | else |
1041 | else |
944 | downheap (heap, N, k); |
1042 | downheap (heap, N, k); |
945 | } |
1043 | } |
946 | |
1044 | |
947 | /* rebuild the heap: this function is used only once and executed rarely */ |
1045 | /* rebuild the heap: this function is used only once and executed rarely */ |
948 | void inline_size |
1046 | inline_size void |
949 | reheap (ANHE *heap, int N) |
1047 | reheap (ANHE *heap, int N) |
950 | { |
1048 | { |
951 | int i; |
1049 | int i; |
952 | |
1050 | |
953 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1051 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
956 | upheap (heap, i + HEAP0); |
1054 | upheap (heap, i + HEAP0); |
957 | } |
1055 | } |
958 | |
1056 | |
959 | /*****************************************************************************/ |
1057 | /*****************************************************************************/ |
960 | |
1058 | |
|
|
1059 | /* associate signal watchers to a signal signal */ |
961 | typedef struct |
1060 | typedef struct |
962 | { |
1061 | { |
963 | WL head; |
1062 | WL head; |
964 | EV_ATOMIC_T gotsig; |
1063 | EV_ATOMIC_T gotsig; |
965 | } ANSIG; |
1064 | } ANSIG; |
… | |
… | |
969 | |
1068 | |
970 | static EV_ATOMIC_T gotsig; |
1069 | static EV_ATOMIC_T gotsig; |
971 | |
1070 | |
972 | /*****************************************************************************/ |
1071 | /*****************************************************************************/ |
973 | |
1072 | |
974 | void inline_speed |
1073 | /* used to prepare libev internal fd's */ |
|
|
1074 | /* this is not fork-safe */ |
|
|
1075 | inline_speed void |
975 | fd_intern (int fd) |
1076 | fd_intern (int fd) |
976 | { |
1077 | { |
977 | #ifdef _WIN32 |
1078 | #ifdef _WIN32 |
978 | unsigned long arg = 1; |
1079 | unsigned long arg = 1; |
979 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1080 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
984 | } |
1085 | } |
985 | |
1086 | |
986 | static void noinline |
1087 | static void noinline |
987 | evpipe_init (EV_P) |
1088 | evpipe_init (EV_P) |
988 | { |
1089 | { |
989 | if (!ev_is_active (&pipeev)) |
1090 | if (!ev_is_active (&pipe_w)) |
990 | { |
1091 | { |
991 | #if EV_USE_EVENTFD |
1092 | #if EV_USE_EVENTFD |
992 | if ((evfd = eventfd (0, 0)) >= 0) |
1093 | if ((evfd = eventfd (0, 0)) >= 0) |
993 | { |
1094 | { |
994 | evpipe [0] = -1; |
1095 | evpipe [0] = -1; |
995 | fd_intern (evfd); |
1096 | fd_intern (evfd); |
996 | ev_io_set (&pipeev, evfd, EV_READ); |
1097 | ev_io_set (&pipe_w, evfd, EV_READ); |
997 | } |
1098 | } |
998 | else |
1099 | else |
999 | #endif |
1100 | #endif |
1000 | { |
1101 | { |
1001 | while (pipe (evpipe)) |
1102 | while (pipe (evpipe)) |
1002 | syserr ("(libev) error creating signal/async pipe"); |
1103 | ev_syserr ("(libev) error creating signal/async pipe"); |
1003 | |
1104 | |
1004 | fd_intern (evpipe [0]); |
1105 | fd_intern (evpipe [0]); |
1005 | fd_intern (evpipe [1]); |
1106 | fd_intern (evpipe [1]); |
1006 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1107 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1007 | } |
1108 | } |
1008 | |
1109 | |
1009 | ev_io_start (EV_A_ &pipeev); |
1110 | ev_io_start (EV_A_ &pipe_w); |
1010 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1111 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1011 | } |
1112 | } |
1012 | } |
1113 | } |
1013 | |
1114 | |
1014 | void inline_size |
1115 | inline_size void |
1015 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1116 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1016 | { |
1117 | { |
1017 | if (!*flag) |
1118 | if (!*flag) |
1018 | { |
1119 | { |
1019 | int old_errno = errno; /* save errno because write might clobber it */ |
1120 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1032 | |
1133 | |
1033 | errno = old_errno; |
1134 | errno = old_errno; |
1034 | } |
1135 | } |
1035 | } |
1136 | } |
1036 | |
1137 | |
|
|
1138 | /* called whenever the libev signal pipe */ |
|
|
1139 | /* got some events (signal, async) */ |
1037 | static void |
1140 | static void |
1038 | pipecb (EV_P_ ev_io *iow, int revents) |
1141 | pipecb (EV_P_ ev_io *iow, int revents) |
1039 | { |
1142 | { |
1040 | #if EV_USE_EVENTFD |
1143 | #if EV_USE_EVENTFD |
1041 | if (evfd >= 0) |
1144 | if (evfd >= 0) |
… | |
… | |
1097 | ev_feed_signal_event (EV_P_ int signum) |
1200 | ev_feed_signal_event (EV_P_ int signum) |
1098 | { |
1201 | { |
1099 | WL w; |
1202 | WL w; |
1100 | |
1203 | |
1101 | #if EV_MULTIPLICITY |
1204 | #if EV_MULTIPLICITY |
1102 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1205 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1103 | #endif |
1206 | #endif |
1104 | |
1207 | |
1105 | --signum; |
1208 | --signum; |
1106 | |
1209 | |
1107 | if (signum < 0 || signum >= signalmax) |
1210 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1123 | |
1226 | |
1124 | #ifndef WIFCONTINUED |
1227 | #ifndef WIFCONTINUED |
1125 | # define WIFCONTINUED(status) 0 |
1228 | # define WIFCONTINUED(status) 0 |
1126 | #endif |
1229 | #endif |
1127 | |
1230 | |
1128 | void inline_speed |
1231 | /* handle a single child status event */ |
|
|
1232 | inline_speed void |
1129 | child_reap (EV_P_ int chain, int pid, int status) |
1233 | child_reap (EV_P_ int chain, int pid, int status) |
1130 | { |
1234 | { |
1131 | ev_child *w; |
1235 | ev_child *w; |
1132 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1236 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1133 | |
1237 | |
… | |
… | |
1146 | |
1250 | |
1147 | #ifndef WCONTINUED |
1251 | #ifndef WCONTINUED |
1148 | # define WCONTINUED 0 |
1252 | # define WCONTINUED 0 |
1149 | #endif |
1253 | #endif |
1150 | |
1254 | |
|
|
1255 | /* called on sigchld etc., calls waitpid */ |
1151 | static void |
1256 | static void |
1152 | childcb (EV_P_ ev_signal *sw, int revents) |
1257 | childcb (EV_P_ ev_signal *sw, int revents) |
1153 | { |
1258 | { |
1154 | int pid, status; |
1259 | int pid, status; |
1155 | |
1260 | |
… | |
… | |
1236 | /* kqueue is borked on everything but netbsd apparently */ |
1341 | /* kqueue is borked on everything but netbsd apparently */ |
1237 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1342 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1238 | flags &= ~EVBACKEND_KQUEUE; |
1343 | flags &= ~EVBACKEND_KQUEUE; |
1239 | #endif |
1344 | #endif |
1240 | #ifdef __APPLE__ |
1345 | #ifdef __APPLE__ |
1241 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1346 | /* only select works correctly on that "unix-certified" platform */ |
1242 | flags &= ~EVBACKEND_POLL; |
1347 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1348 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1243 | #endif |
1349 | #endif |
1244 | |
1350 | |
1245 | return flags; |
1351 | return flags; |
1246 | } |
1352 | } |
1247 | |
1353 | |
… | |
… | |
1261 | ev_backend (EV_P) |
1367 | ev_backend (EV_P) |
1262 | { |
1368 | { |
1263 | return backend; |
1369 | return backend; |
1264 | } |
1370 | } |
1265 | |
1371 | |
|
|
1372 | #if EV_MINIMAL < 2 |
1266 | unsigned int |
1373 | unsigned int |
1267 | ev_loop_count (EV_P) |
1374 | ev_loop_count (EV_P) |
1268 | { |
1375 | { |
1269 | return loop_count; |
1376 | return loop_count; |
1270 | } |
1377 | } |
1271 | |
1378 | |
|
|
1379 | unsigned int |
|
|
1380 | ev_loop_depth (EV_P) |
|
|
1381 | { |
|
|
1382 | return loop_depth; |
|
|
1383 | } |
|
|
1384 | |
1272 | void |
1385 | void |
1273 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1386 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1274 | { |
1387 | { |
1275 | io_blocktime = interval; |
1388 | io_blocktime = interval; |
1276 | } |
1389 | } |
… | |
… | |
1279 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1392 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1280 | { |
1393 | { |
1281 | timeout_blocktime = interval; |
1394 | timeout_blocktime = interval; |
1282 | } |
1395 | } |
1283 | |
1396 | |
|
|
1397 | void |
|
|
1398 | ev_set_userdata (EV_P_ void *data) |
|
|
1399 | { |
|
|
1400 | userdata = data; |
|
|
1401 | } |
|
|
1402 | |
|
|
1403 | void * |
|
|
1404 | ev_userdata (EV_P) |
|
|
1405 | { |
|
|
1406 | return userdata; |
|
|
1407 | } |
|
|
1408 | |
|
|
1409 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1410 | { |
|
|
1411 | invoke_cb = invoke_pending_cb; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | void ev_set_blocking_cb (EV_P_ void (*suspend_cb_)(EV_P), void (*resume_cb_)(EV_P)) |
|
|
1415 | { |
|
|
1416 | suspend_cb = suspend_cb_; |
|
|
1417 | resume_cb = resume_cb_; |
|
|
1418 | } |
|
|
1419 | #endif |
|
|
1420 | |
|
|
1421 | /* initialise a loop structure, must be zero-initialised */ |
1284 | static void noinline |
1422 | static void noinline |
1285 | loop_init (EV_P_ unsigned int flags) |
1423 | loop_init (EV_P_ unsigned int flags) |
1286 | { |
1424 | { |
1287 | if (!backend) |
1425 | if (!backend) |
1288 | { |
1426 | { |
|
|
1427 | #if EV_USE_REALTIME |
|
|
1428 | if (!have_realtime) |
|
|
1429 | { |
|
|
1430 | struct timespec ts; |
|
|
1431 | |
|
|
1432 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1433 | have_realtime = 1; |
|
|
1434 | } |
|
|
1435 | #endif |
|
|
1436 | |
1289 | #if EV_USE_MONOTONIC |
1437 | #if EV_USE_MONOTONIC |
|
|
1438 | if (!have_monotonic) |
1290 | { |
1439 | { |
1291 | struct timespec ts; |
1440 | struct timespec ts; |
|
|
1441 | |
1292 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1442 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1293 | have_monotonic = 1; |
1443 | have_monotonic = 1; |
1294 | } |
1444 | } |
1295 | #endif |
1445 | #endif |
1296 | |
1446 | |
1297 | ev_rt_now = ev_time (); |
1447 | ev_rt_now = ev_time (); |
1298 | mn_now = get_clock (); |
1448 | mn_now = get_clock (); |
1299 | now_floor = mn_now; |
1449 | now_floor = mn_now; |
1300 | rtmn_diff = ev_rt_now - mn_now; |
1450 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1451 | #if EV_MINIMAL < 2 |
|
|
1452 | invoke_cb = ev_invoke_pending; |
|
|
1453 | #endif |
1301 | |
1454 | |
1302 | io_blocktime = 0.; |
1455 | io_blocktime = 0.; |
1303 | timeout_blocktime = 0.; |
1456 | timeout_blocktime = 0.; |
1304 | backend = 0; |
1457 | backend = 0; |
1305 | backend_fd = -1; |
1458 | backend_fd = -1; |
… | |
… | |
1336 | #endif |
1489 | #endif |
1337 | #if EV_USE_SELECT |
1490 | #if EV_USE_SELECT |
1338 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1491 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1339 | #endif |
1492 | #endif |
1340 | |
1493 | |
|
|
1494 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1495 | |
1341 | ev_init (&pipeev, pipecb); |
1496 | ev_init (&pipe_w, pipecb); |
1342 | ev_set_priority (&pipeev, EV_MAXPRI); |
1497 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1343 | } |
1498 | } |
1344 | } |
1499 | } |
1345 | |
1500 | |
|
|
1501 | /* free up a loop structure */ |
1346 | static void noinline |
1502 | static void noinline |
1347 | loop_destroy (EV_P) |
1503 | loop_destroy (EV_P) |
1348 | { |
1504 | { |
1349 | int i; |
1505 | int i; |
1350 | |
1506 | |
1351 | if (ev_is_active (&pipeev)) |
1507 | if (ev_is_active (&pipe_w)) |
1352 | { |
1508 | { |
1353 | ev_ref (EV_A); /* signal watcher */ |
1509 | ev_ref (EV_A); /* signal watcher */ |
1354 | ev_io_stop (EV_A_ &pipeev); |
1510 | ev_io_stop (EV_A_ &pipe_w); |
1355 | |
1511 | |
1356 | #if EV_USE_EVENTFD |
1512 | #if EV_USE_EVENTFD |
1357 | if (evfd >= 0) |
1513 | if (evfd >= 0) |
1358 | close (evfd); |
1514 | close (evfd); |
1359 | #endif |
1515 | #endif |
… | |
… | |
1398 | } |
1554 | } |
1399 | |
1555 | |
1400 | ev_free (anfds); anfdmax = 0; |
1556 | ev_free (anfds); anfdmax = 0; |
1401 | |
1557 | |
1402 | /* have to use the microsoft-never-gets-it-right macro */ |
1558 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1559 | array_free (rfeed, EMPTY); |
1403 | array_free (fdchange, EMPTY); |
1560 | array_free (fdchange, EMPTY); |
1404 | array_free (timer, EMPTY); |
1561 | array_free (timer, EMPTY); |
1405 | #if EV_PERIODIC_ENABLE |
1562 | #if EV_PERIODIC_ENABLE |
1406 | array_free (periodic, EMPTY); |
1563 | array_free (periodic, EMPTY); |
1407 | #endif |
1564 | #endif |
… | |
… | |
1416 | |
1573 | |
1417 | backend = 0; |
1574 | backend = 0; |
1418 | } |
1575 | } |
1419 | |
1576 | |
1420 | #if EV_USE_INOTIFY |
1577 | #if EV_USE_INOTIFY |
1421 | void inline_size infy_fork (EV_P); |
1578 | inline_size void infy_fork (EV_P); |
1422 | #endif |
1579 | #endif |
1423 | |
1580 | |
1424 | void inline_size |
1581 | inline_size void |
1425 | loop_fork (EV_P) |
1582 | loop_fork (EV_P) |
1426 | { |
1583 | { |
1427 | #if EV_USE_PORT |
1584 | #if EV_USE_PORT |
1428 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1585 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1429 | #endif |
1586 | #endif |
… | |
… | |
1435 | #endif |
1592 | #endif |
1436 | #if EV_USE_INOTIFY |
1593 | #if EV_USE_INOTIFY |
1437 | infy_fork (EV_A); |
1594 | infy_fork (EV_A); |
1438 | #endif |
1595 | #endif |
1439 | |
1596 | |
1440 | if (ev_is_active (&pipeev)) |
1597 | if (ev_is_active (&pipe_w)) |
1441 | { |
1598 | { |
1442 | /* this "locks" the handlers against writing to the pipe */ |
1599 | /* this "locks" the handlers against writing to the pipe */ |
1443 | /* while we modify the fd vars */ |
1600 | /* while we modify the fd vars */ |
1444 | gotsig = 1; |
1601 | gotsig = 1; |
1445 | #if EV_ASYNC_ENABLE |
1602 | #if EV_ASYNC_ENABLE |
1446 | gotasync = 1; |
1603 | gotasync = 1; |
1447 | #endif |
1604 | #endif |
1448 | |
1605 | |
1449 | ev_ref (EV_A); |
1606 | ev_ref (EV_A); |
1450 | ev_io_stop (EV_A_ &pipeev); |
1607 | ev_io_stop (EV_A_ &pipe_w); |
1451 | |
1608 | |
1452 | #if EV_USE_EVENTFD |
1609 | #if EV_USE_EVENTFD |
1453 | if (evfd >= 0) |
1610 | if (evfd >= 0) |
1454 | close (evfd); |
1611 | close (evfd); |
1455 | #endif |
1612 | #endif |
… | |
… | |
1460 | close (evpipe [1]); |
1617 | close (evpipe [1]); |
1461 | } |
1618 | } |
1462 | |
1619 | |
1463 | evpipe_init (EV_A); |
1620 | evpipe_init (EV_A); |
1464 | /* now iterate over everything, in case we missed something */ |
1621 | /* now iterate over everything, in case we missed something */ |
1465 | pipecb (EV_A_ &pipeev, EV_READ); |
1622 | pipecb (EV_A_ &pipe_w, EV_READ); |
1466 | } |
1623 | } |
1467 | |
1624 | |
1468 | postfork = 0; |
1625 | postfork = 0; |
1469 | } |
1626 | } |
1470 | |
1627 | |
… | |
… | |
1495 | void |
1652 | void |
1496 | ev_loop_fork (EV_P) |
1653 | ev_loop_fork (EV_P) |
1497 | { |
1654 | { |
1498 | postfork = 1; /* must be in line with ev_default_fork */ |
1655 | postfork = 1; /* must be in line with ev_default_fork */ |
1499 | } |
1656 | } |
|
|
1657 | #endif /* multiplicity */ |
1500 | |
1658 | |
1501 | #if EV_VERIFY |
1659 | #if EV_VERIFY |
1502 | static void noinline |
1660 | static void noinline |
1503 | verify_watcher (EV_P_ W w) |
1661 | verify_watcher (EV_P_ W w) |
1504 | { |
1662 | { |
1505 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1663 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1506 | |
1664 | |
1507 | if (w->pending) |
1665 | if (w->pending) |
1508 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1666 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1509 | } |
1667 | } |
1510 | |
1668 | |
1511 | static void noinline |
1669 | static void noinline |
1512 | verify_heap (EV_P_ ANHE *heap, int N) |
1670 | verify_heap (EV_P_ ANHE *heap, int N) |
1513 | { |
1671 | { |
1514 | int i; |
1672 | int i; |
1515 | |
1673 | |
1516 | for (i = HEAP0; i < N + HEAP0; ++i) |
1674 | for (i = HEAP0; i < N + HEAP0; ++i) |
1517 | { |
1675 | { |
1518 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1676 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1519 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1677 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1520 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1678 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1521 | |
1679 | |
1522 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1680 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1523 | } |
1681 | } |
1524 | } |
1682 | } |
1525 | |
1683 | |
1526 | static void noinline |
1684 | static void noinline |
1527 | array_verify (EV_P_ W *ws, int cnt) |
1685 | array_verify (EV_P_ W *ws, int cnt) |
1528 | { |
1686 | { |
1529 | while (cnt--) |
1687 | while (cnt--) |
1530 | { |
1688 | { |
1531 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1689 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1532 | verify_watcher (EV_A_ ws [cnt]); |
1690 | verify_watcher (EV_A_ ws [cnt]); |
1533 | } |
1691 | } |
1534 | } |
1692 | } |
1535 | #endif |
1693 | #endif |
1536 | |
1694 | |
|
|
1695 | #if EV_MINIMAL < 2 |
1537 | void |
1696 | void |
1538 | ev_loop_verify (EV_P) |
1697 | ev_loop_verify (EV_P) |
1539 | { |
1698 | { |
1540 | #if EV_VERIFY |
1699 | #if EV_VERIFY |
1541 | int i; |
1700 | int i; |
… | |
… | |
1543 | |
1702 | |
1544 | assert (activecnt >= -1); |
1703 | assert (activecnt >= -1); |
1545 | |
1704 | |
1546 | assert (fdchangemax >= fdchangecnt); |
1705 | assert (fdchangemax >= fdchangecnt); |
1547 | for (i = 0; i < fdchangecnt; ++i) |
1706 | for (i = 0; i < fdchangecnt; ++i) |
1548 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1707 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1549 | |
1708 | |
1550 | assert (anfdmax >= 0); |
1709 | assert (anfdmax >= 0); |
1551 | for (i = 0; i < anfdmax; ++i) |
1710 | for (i = 0; i < anfdmax; ++i) |
1552 | for (w = anfds [i].head; w; w = w->next) |
1711 | for (w = anfds [i].head; w; w = w->next) |
1553 | { |
1712 | { |
1554 | verify_watcher (EV_A_ (W)w); |
1713 | verify_watcher (EV_A_ (W)w); |
1555 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1714 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1556 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1715 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1557 | } |
1716 | } |
1558 | |
1717 | |
1559 | assert (timermax >= timercnt); |
1718 | assert (timermax >= timercnt); |
1560 | verify_heap (EV_A_ timers, timercnt); |
1719 | verify_heap (EV_A_ timers, timercnt); |
1561 | |
1720 | |
… | |
… | |
1594 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1753 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1595 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1754 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1596 | # endif |
1755 | # endif |
1597 | #endif |
1756 | #endif |
1598 | } |
1757 | } |
1599 | |
1758 | #endif |
1600 | #endif /* multiplicity */ |
|
|
1601 | |
1759 | |
1602 | #if EV_MULTIPLICITY |
1760 | #if EV_MULTIPLICITY |
1603 | struct ev_loop * |
1761 | struct ev_loop * |
1604 | ev_default_loop_init (unsigned int flags) |
1762 | ev_default_loop_init (unsigned int flags) |
1605 | #else |
1763 | #else |
… | |
… | |
1655 | { |
1813 | { |
1656 | #if EV_MULTIPLICITY |
1814 | #if EV_MULTIPLICITY |
1657 | struct ev_loop *loop = ev_default_loop_ptr; |
1815 | struct ev_loop *loop = ev_default_loop_ptr; |
1658 | #endif |
1816 | #endif |
1659 | |
1817 | |
1660 | if (backend) |
|
|
1661 | postfork = 1; /* must be in line with ev_loop_fork */ |
1818 | postfork = 1; /* must be in line with ev_loop_fork */ |
1662 | } |
1819 | } |
1663 | |
1820 | |
1664 | /*****************************************************************************/ |
1821 | /*****************************************************************************/ |
1665 | |
1822 | |
1666 | void |
1823 | void |
1667 | ev_invoke (EV_P_ void *w, int revents) |
1824 | ev_invoke (EV_P_ void *w, int revents) |
1668 | { |
1825 | { |
1669 | EV_CB_INVOKE ((W)w, revents); |
1826 | EV_CB_INVOKE ((W)w, revents); |
1670 | } |
1827 | } |
1671 | |
1828 | |
1672 | void inline_speed |
1829 | void noinline |
1673 | call_pending (EV_P) |
1830 | ev_invoke_pending (EV_P) |
1674 | { |
1831 | { |
1675 | int pri; |
1832 | int pri; |
1676 | |
1833 | |
1677 | for (pri = NUMPRI; pri--; ) |
1834 | for (pri = NUMPRI; pri--; ) |
1678 | while (pendingcnt [pri]) |
1835 | while (pendingcnt [pri]) |
1679 | { |
1836 | { |
1680 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1837 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1681 | |
1838 | |
1682 | if (expect_true (p->w)) |
|
|
1683 | { |
|
|
1684 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1839 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1840 | /* ^ this is no longer true, as pending_w could be here */ |
1685 | |
1841 | |
1686 | p->w->pending = 0; |
1842 | p->w->pending = 0; |
1687 | EV_CB_INVOKE (p->w, p->events); |
1843 | EV_CB_INVOKE (p->w, p->events); |
1688 | EV_FREQUENT_CHECK; |
1844 | EV_FREQUENT_CHECK; |
1689 | } |
|
|
1690 | } |
1845 | } |
1691 | } |
1846 | } |
1692 | |
1847 | |
1693 | #if EV_IDLE_ENABLE |
1848 | #if EV_IDLE_ENABLE |
1694 | void inline_size |
1849 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1850 | /* only when higher priorities are idle" logic */ |
|
|
1851 | inline_size void |
1695 | idle_reify (EV_P) |
1852 | idle_reify (EV_P) |
1696 | { |
1853 | { |
1697 | if (expect_false (idleall)) |
1854 | if (expect_false (idleall)) |
1698 | { |
1855 | { |
1699 | int pri; |
1856 | int pri; |
… | |
… | |
1711 | } |
1868 | } |
1712 | } |
1869 | } |
1713 | } |
1870 | } |
1714 | #endif |
1871 | #endif |
1715 | |
1872 | |
1716 | void inline_size |
1873 | /* make timers pending */ |
|
|
1874 | inline_size void |
1717 | timers_reify (EV_P) |
1875 | timers_reify (EV_P) |
1718 | { |
1876 | { |
1719 | EV_FREQUENT_CHECK; |
1877 | EV_FREQUENT_CHECK; |
1720 | |
1878 | |
1721 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1879 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1722 | { |
1880 | { |
1723 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1881 | do |
1724 | |
|
|
1725 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1726 | |
|
|
1727 | /* first reschedule or stop timer */ |
|
|
1728 | if (w->repeat) |
|
|
1729 | { |
1882 | { |
|
|
1883 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1884 | |
|
|
1885 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1886 | |
|
|
1887 | /* first reschedule or stop timer */ |
|
|
1888 | if (w->repeat) |
|
|
1889 | { |
1730 | ev_at (w) += w->repeat; |
1890 | ev_at (w) += w->repeat; |
1731 | if (ev_at (w) < mn_now) |
1891 | if (ev_at (w) < mn_now) |
1732 | ev_at (w) = mn_now; |
1892 | ev_at (w) = mn_now; |
1733 | |
1893 | |
1734 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1894 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1735 | |
1895 | |
1736 | ANHE_at_cache (timers [HEAP0]); |
1896 | ANHE_at_cache (timers [HEAP0]); |
1737 | downheap (timers, timercnt, HEAP0); |
1897 | downheap (timers, timercnt, HEAP0); |
|
|
1898 | } |
|
|
1899 | else |
|
|
1900 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1901 | |
|
|
1902 | EV_FREQUENT_CHECK; |
|
|
1903 | feed_reverse (EV_A_ (W)w); |
1738 | } |
1904 | } |
1739 | else |
1905 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1740 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1741 | |
1906 | |
1742 | EV_FREQUENT_CHECK; |
|
|
1743 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1907 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1744 | } |
1908 | } |
1745 | } |
1909 | } |
1746 | |
1910 | |
1747 | #if EV_PERIODIC_ENABLE |
1911 | #if EV_PERIODIC_ENABLE |
1748 | void inline_size |
1912 | /* make periodics pending */ |
|
|
1913 | inline_size void |
1749 | periodics_reify (EV_P) |
1914 | periodics_reify (EV_P) |
1750 | { |
1915 | { |
1751 | EV_FREQUENT_CHECK; |
1916 | EV_FREQUENT_CHECK; |
1752 | |
1917 | |
1753 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1918 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1754 | { |
1919 | { |
1755 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1920 | int feed_count = 0; |
1756 | |
1921 | |
1757 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1922 | do |
1758 | |
|
|
1759 | /* first reschedule or stop timer */ |
|
|
1760 | if (w->reschedule_cb) |
|
|
1761 | { |
1923 | { |
|
|
1924 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1925 | |
|
|
1926 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1927 | |
|
|
1928 | /* first reschedule or stop timer */ |
|
|
1929 | if (w->reschedule_cb) |
|
|
1930 | { |
1762 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1931 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1763 | |
1932 | |
1764 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1933 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1765 | |
1934 | |
1766 | ANHE_at_cache (periodics [HEAP0]); |
1935 | ANHE_at_cache (periodics [HEAP0]); |
1767 | downheap (periodics, periodiccnt, HEAP0); |
1936 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1937 | } |
|
|
1938 | else if (w->interval) |
|
|
1939 | { |
|
|
1940 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1941 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1942 | /* this might happen because of floating point inexactness */ |
|
|
1943 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1944 | { |
|
|
1945 | ev_at (w) += w->interval; |
|
|
1946 | |
|
|
1947 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1948 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1949 | /* has effectively asked to get triggered more often than possible */ |
|
|
1950 | if (ev_at (w) < ev_rt_now) |
|
|
1951 | ev_at (w) = ev_rt_now; |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1955 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1956 | } |
|
|
1957 | else |
|
|
1958 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1959 | |
|
|
1960 | EV_FREQUENT_CHECK; |
|
|
1961 | feed_reverse (EV_A_ (W)w); |
1768 | } |
1962 | } |
1769 | else if (w->interval) |
1963 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1770 | { |
|
|
1771 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1772 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1773 | /* this might happen because of floating point inexactness */ |
|
|
1774 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1775 | { |
|
|
1776 | ev_at (w) += w->interval; |
|
|
1777 | |
1964 | |
1778 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1779 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1780 | /* has effectively asked to get triggered more often than possible */ |
|
|
1781 | if (ev_at (w) < ev_rt_now) |
|
|
1782 | ev_at (w) = ev_rt_now; |
|
|
1783 | } |
|
|
1784 | |
|
|
1785 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1786 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1787 | } |
|
|
1788 | else |
|
|
1789 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1790 | |
|
|
1791 | EV_FREQUENT_CHECK; |
|
|
1792 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1965 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1793 | } |
1966 | } |
1794 | } |
1967 | } |
1795 | |
1968 | |
|
|
1969 | /* simply recalculate all periodics */ |
|
|
1970 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1796 | static void noinline |
1971 | static void noinline |
1797 | periodics_reschedule (EV_P) |
1972 | periodics_reschedule (EV_P) |
1798 | { |
1973 | { |
1799 | int i; |
1974 | int i; |
1800 | |
1975 | |
… | |
… | |
1813 | |
1988 | |
1814 | reheap (periodics, periodiccnt); |
1989 | reheap (periodics, periodiccnt); |
1815 | } |
1990 | } |
1816 | #endif |
1991 | #endif |
1817 | |
1992 | |
1818 | void inline_speed |
1993 | /* adjust all timers by a given offset */ |
|
|
1994 | static void noinline |
|
|
1995 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1996 | { |
|
|
1997 | int i; |
|
|
1998 | |
|
|
1999 | for (i = 0; i < timercnt; ++i) |
|
|
2000 | { |
|
|
2001 | ANHE *he = timers + i + HEAP0; |
|
|
2002 | ANHE_w (*he)->at += adjust; |
|
|
2003 | ANHE_at_cache (*he); |
|
|
2004 | } |
|
|
2005 | } |
|
|
2006 | |
|
|
2007 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2008 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2009 | inline_speed void |
1819 | time_update (EV_P_ ev_tstamp max_block) |
2010 | time_update (EV_P_ ev_tstamp max_block) |
1820 | { |
2011 | { |
1821 | int i; |
|
|
1822 | |
|
|
1823 | #if EV_USE_MONOTONIC |
2012 | #if EV_USE_MONOTONIC |
1824 | if (expect_true (have_monotonic)) |
2013 | if (expect_true (have_monotonic)) |
1825 | { |
2014 | { |
|
|
2015 | int i; |
1826 | ev_tstamp odiff = rtmn_diff; |
2016 | ev_tstamp odiff = rtmn_diff; |
1827 | |
2017 | |
1828 | mn_now = get_clock (); |
2018 | mn_now = get_clock (); |
1829 | |
2019 | |
1830 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2020 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1856 | ev_rt_now = ev_time (); |
2046 | ev_rt_now = ev_time (); |
1857 | mn_now = get_clock (); |
2047 | mn_now = get_clock (); |
1858 | now_floor = mn_now; |
2048 | now_floor = mn_now; |
1859 | } |
2049 | } |
1860 | |
2050 | |
|
|
2051 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2052 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1861 | # if EV_PERIODIC_ENABLE |
2053 | # if EV_PERIODIC_ENABLE |
1862 | periodics_reschedule (EV_A); |
2054 | periodics_reschedule (EV_A); |
1863 | # endif |
2055 | # endif |
1864 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1865 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1866 | } |
2056 | } |
1867 | else |
2057 | else |
1868 | #endif |
2058 | #endif |
1869 | { |
2059 | { |
1870 | ev_rt_now = ev_time (); |
2060 | ev_rt_now = ev_time (); |
1871 | |
2061 | |
1872 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2062 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1873 | { |
2063 | { |
|
|
2064 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2065 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1874 | #if EV_PERIODIC_ENABLE |
2066 | #if EV_PERIODIC_ENABLE |
1875 | periodics_reschedule (EV_A); |
2067 | periodics_reschedule (EV_A); |
1876 | #endif |
2068 | #endif |
1877 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1878 | for (i = 0; i < timercnt; ++i) |
|
|
1879 | { |
|
|
1880 | ANHE *he = timers + i + HEAP0; |
|
|
1881 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1882 | ANHE_at_cache (*he); |
|
|
1883 | } |
|
|
1884 | } |
2069 | } |
1885 | |
2070 | |
1886 | mn_now = ev_rt_now; |
2071 | mn_now = ev_rt_now; |
1887 | } |
2072 | } |
1888 | } |
2073 | } |
1889 | |
2074 | |
1890 | void |
2075 | void |
1891 | ev_ref (EV_P) |
|
|
1892 | { |
|
|
1893 | ++activecnt; |
|
|
1894 | } |
|
|
1895 | |
|
|
1896 | void |
|
|
1897 | ev_unref (EV_P) |
|
|
1898 | { |
|
|
1899 | --activecnt; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | void |
|
|
1903 | ev_now_update (EV_P) |
|
|
1904 | { |
|
|
1905 | time_update (EV_A_ 1e100); |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | static int loop_done; |
|
|
1909 | |
|
|
1910 | void |
|
|
1911 | ev_loop (EV_P_ int flags) |
2076 | ev_loop (EV_P_ int flags) |
1912 | { |
2077 | { |
|
|
2078 | #if EV_MINIMAL < 2 |
|
|
2079 | ++loop_depth; |
|
|
2080 | #endif |
|
|
2081 | |
1913 | loop_done = EVUNLOOP_CANCEL; |
2082 | loop_done = EVUNLOOP_CANCEL; |
1914 | |
2083 | |
1915 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2084 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1916 | |
2085 | |
1917 | do |
2086 | do |
1918 | { |
2087 | { |
1919 | #if EV_VERIFY >= 2 |
2088 | #if EV_VERIFY >= 2 |
1920 | ev_loop_verify (EV_A); |
2089 | ev_loop_verify (EV_A); |
… | |
… | |
1933 | /* we might have forked, so queue fork handlers */ |
2102 | /* we might have forked, so queue fork handlers */ |
1934 | if (expect_false (postfork)) |
2103 | if (expect_false (postfork)) |
1935 | if (forkcnt) |
2104 | if (forkcnt) |
1936 | { |
2105 | { |
1937 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2106 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1938 | call_pending (EV_A); |
2107 | EV_INVOKE_PENDING; |
1939 | } |
2108 | } |
1940 | #endif |
2109 | #endif |
1941 | |
2110 | |
1942 | /* queue prepare watchers (and execute them) */ |
2111 | /* queue prepare watchers (and execute them) */ |
1943 | if (expect_false (preparecnt)) |
2112 | if (expect_false (preparecnt)) |
1944 | { |
2113 | { |
1945 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2114 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1946 | call_pending (EV_A); |
2115 | EV_INVOKE_PENDING; |
1947 | } |
2116 | } |
1948 | |
|
|
1949 | if (expect_false (!activecnt)) |
|
|
1950 | break; |
|
|
1951 | |
2117 | |
1952 | /* we might have forked, so reify kernel state if necessary */ |
2118 | /* we might have forked, so reify kernel state if necessary */ |
1953 | if (expect_false (postfork)) |
2119 | if (expect_false (postfork)) |
1954 | loop_fork (EV_A); |
2120 | loop_fork (EV_A); |
1955 | |
2121 | |
… | |
… | |
1961 | ev_tstamp waittime = 0.; |
2127 | ev_tstamp waittime = 0.; |
1962 | ev_tstamp sleeptime = 0.; |
2128 | ev_tstamp sleeptime = 0.; |
1963 | |
2129 | |
1964 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2130 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1965 | { |
2131 | { |
|
|
2132 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2133 | ev_tstamp prev_mn_now = mn_now; |
|
|
2134 | |
1966 | /* update time to cancel out callback processing overhead */ |
2135 | /* update time to cancel out callback processing overhead */ |
1967 | time_update (EV_A_ 1e100); |
2136 | time_update (EV_A_ 1e100); |
1968 | |
2137 | |
1969 | waittime = MAX_BLOCKTIME; |
2138 | waittime = MAX_BLOCKTIME; |
1970 | |
2139 | |
… | |
… | |
1980 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2149 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1981 | if (waittime > to) waittime = to; |
2150 | if (waittime > to) waittime = to; |
1982 | } |
2151 | } |
1983 | #endif |
2152 | #endif |
1984 | |
2153 | |
|
|
2154 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1985 | if (expect_false (waittime < timeout_blocktime)) |
2155 | if (expect_false (waittime < timeout_blocktime)) |
1986 | waittime = timeout_blocktime; |
2156 | waittime = timeout_blocktime; |
1987 | |
2157 | |
1988 | sleeptime = waittime - backend_fudge; |
2158 | /* extra check because io_blocktime is commonly 0 */ |
1989 | |
|
|
1990 | if (expect_true (sleeptime > io_blocktime)) |
2159 | if (expect_false (io_blocktime)) |
1991 | sleeptime = io_blocktime; |
|
|
1992 | |
|
|
1993 | if (sleeptime) |
|
|
1994 | { |
2160 | { |
|
|
2161 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2162 | |
|
|
2163 | if (sleeptime > waittime - backend_fudge) |
|
|
2164 | sleeptime = waittime - backend_fudge; |
|
|
2165 | |
|
|
2166 | if (expect_true (sleeptime > 0.)) |
|
|
2167 | { |
1995 | ev_sleep (sleeptime); |
2168 | ev_sleep (sleeptime); |
1996 | waittime -= sleeptime; |
2169 | waittime -= sleeptime; |
|
|
2170 | } |
1997 | } |
2171 | } |
1998 | } |
2172 | } |
1999 | |
2173 | |
|
|
2174 | #if EV_MINIMAL < 2 |
2000 | ++loop_count; |
2175 | ++loop_count; |
|
|
2176 | #endif |
2001 | backend_poll (EV_A_ waittime); |
2177 | backend_poll (EV_A_ waittime); |
2002 | |
2178 | |
2003 | /* update ev_rt_now, do magic */ |
2179 | /* update ev_rt_now, do magic */ |
2004 | time_update (EV_A_ waittime + sleeptime); |
2180 | time_update (EV_A_ waittime + sleeptime); |
2005 | } |
2181 | } |
… | |
… | |
2017 | |
2193 | |
2018 | /* queue check watchers, to be executed first */ |
2194 | /* queue check watchers, to be executed first */ |
2019 | if (expect_false (checkcnt)) |
2195 | if (expect_false (checkcnt)) |
2020 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2196 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2021 | |
2197 | |
2022 | call_pending (EV_A); |
2198 | EV_INVOKE_PENDING; |
2023 | } |
2199 | } |
2024 | while (expect_true ( |
2200 | while (expect_true ( |
2025 | activecnt |
2201 | activecnt |
2026 | && !loop_done |
2202 | && !loop_done |
2027 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2203 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2028 | )); |
2204 | )); |
2029 | |
2205 | |
2030 | if (loop_done == EVUNLOOP_ONE) |
2206 | if (loop_done == EVUNLOOP_ONE) |
2031 | loop_done = EVUNLOOP_CANCEL; |
2207 | loop_done = EVUNLOOP_CANCEL; |
|
|
2208 | |
|
|
2209 | #if EV_MINIMAL < 2 |
|
|
2210 | --loop_depth; |
|
|
2211 | #endif |
2032 | } |
2212 | } |
2033 | |
2213 | |
2034 | void |
2214 | void |
2035 | ev_unloop (EV_P_ int how) |
2215 | ev_unloop (EV_P_ int how) |
2036 | { |
2216 | { |
2037 | loop_done = how; |
2217 | loop_done = how; |
2038 | } |
2218 | } |
2039 | |
2219 | |
|
|
2220 | void |
|
|
2221 | ev_ref (EV_P) |
|
|
2222 | { |
|
|
2223 | ++activecnt; |
|
|
2224 | } |
|
|
2225 | |
|
|
2226 | void |
|
|
2227 | ev_unref (EV_P) |
|
|
2228 | { |
|
|
2229 | --activecnt; |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | void |
|
|
2233 | ev_now_update (EV_P) |
|
|
2234 | { |
|
|
2235 | time_update (EV_A_ 1e100); |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | void |
|
|
2239 | ev_suspend (EV_P) |
|
|
2240 | { |
|
|
2241 | ev_now_update (EV_A); |
|
|
2242 | } |
|
|
2243 | |
|
|
2244 | void |
|
|
2245 | ev_resume (EV_P) |
|
|
2246 | { |
|
|
2247 | ev_tstamp mn_prev = mn_now; |
|
|
2248 | |
|
|
2249 | ev_now_update (EV_A); |
|
|
2250 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2251 | #if EV_PERIODIC_ENABLE |
|
|
2252 | /* TODO: really do this? */ |
|
|
2253 | periodics_reschedule (EV_A); |
|
|
2254 | #endif |
|
|
2255 | } |
|
|
2256 | |
2040 | /*****************************************************************************/ |
2257 | /*****************************************************************************/ |
|
|
2258 | /* singly-linked list management, used when the expected list length is short */ |
2041 | |
2259 | |
2042 | void inline_size |
2260 | inline_size void |
2043 | wlist_add (WL *head, WL elem) |
2261 | wlist_add (WL *head, WL elem) |
2044 | { |
2262 | { |
2045 | elem->next = *head; |
2263 | elem->next = *head; |
2046 | *head = elem; |
2264 | *head = elem; |
2047 | } |
2265 | } |
2048 | |
2266 | |
2049 | void inline_size |
2267 | inline_size void |
2050 | wlist_del (WL *head, WL elem) |
2268 | wlist_del (WL *head, WL elem) |
2051 | { |
2269 | { |
2052 | while (*head) |
2270 | while (*head) |
2053 | { |
2271 | { |
2054 | if (*head == elem) |
2272 | if (*head == elem) |
… | |
… | |
2059 | |
2277 | |
2060 | head = &(*head)->next; |
2278 | head = &(*head)->next; |
2061 | } |
2279 | } |
2062 | } |
2280 | } |
2063 | |
2281 | |
2064 | void inline_speed |
2282 | /* internal, faster, version of ev_clear_pending */ |
|
|
2283 | inline_speed void |
2065 | clear_pending (EV_P_ W w) |
2284 | clear_pending (EV_P_ W w) |
2066 | { |
2285 | { |
2067 | if (w->pending) |
2286 | if (w->pending) |
2068 | { |
2287 | { |
2069 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2288 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2070 | w->pending = 0; |
2289 | w->pending = 0; |
2071 | } |
2290 | } |
2072 | } |
2291 | } |
2073 | |
2292 | |
2074 | int |
2293 | int |
… | |
… | |
2078 | int pending = w_->pending; |
2297 | int pending = w_->pending; |
2079 | |
2298 | |
2080 | if (expect_true (pending)) |
2299 | if (expect_true (pending)) |
2081 | { |
2300 | { |
2082 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2301 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2302 | p->w = (W)&pending_w; |
2083 | w_->pending = 0; |
2303 | w_->pending = 0; |
2084 | p->w = 0; |
|
|
2085 | return p->events; |
2304 | return p->events; |
2086 | } |
2305 | } |
2087 | else |
2306 | else |
2088 | return 0; |
2307 | return 0; |
2089 | } |
2308 | } |
2090 | |
2309 | |
2091 | void inline_size |
2310 | inline_size void |
2092 | pri_adjust (EV_P_ W w) |
2311 | pri_adjust (EV_P_ W w) |
2093 | { |
2312 | { |
2094 | int pri = w->priority; |
2313 | int pri = ev_priority (w); |
2095 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2314 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2096 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2315 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2097 | w->priority = pri; |
2316 | ev_set_priority (w, pri); |
2098 | } |
2317 | } |
2099 | |
2318 | |
2100 | void inline_speed |
2319 | inline_speed void |
2101 | ev_start (EV_P_ W w, int active) |
2320 | ev_start (EV_P_ W w, int active) |
2102 | { |
2321 | { |
2103 | pri_adjust (EV_A_ w); |
2322 | pri_adjust (EV_A_ w); |
2104 | w->active = active; |
2323 | w->active = active; |
2105 | ev_ref (EV_A); |
2324 | ev_ref (EV_A); |
2106 | } |
2325 | } |
2107 | |
2326 | |
2108 | void inline_size |
2327 | inline_size void |
2109 | ev_stop (EV_P_ W w) |
2328 | ev_stop (EV_P_ W w) |
2110 | { |
2329 | { |
2111 | ev_unref (EV_A); |
2330 | ev_unref (EV_A); |
2112 | w->active = 0; |
2331 | w->active = 0; |
2113 | } |
2332 | } |
… | |
… | |
2120 | int fd = w->fd; |
2339 | int fd = w->fd; |
2121 | |
2340 | |
2122 | if (expect_false (ev_is_active (w))) |
2341 | if (expect_false (ev_is_active (w))) |
2123 | return; |
2342 | return; |
2124 | |
2343 | |
2125 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2344 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2126 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2345 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2127 | |
2346 | |
2128 | EV_FREQUENT_CHECK; |
2347 | EV_FREQUENT_CHECK; |
2129 | |
2348 | |
2130 | ev_start (EV_A_ (W)w, 1); |
2349 | ev_start (EV_A_ (W)w, 1); |
2131 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2350 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2132 | wlist_add (&anfds[fd].head, (WL)w); |
2351 | wlist_add (&anfds[fd].head, (WL)w); |
2133 | |
2352 | |
2134 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2353 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2135 | w->events &= ~EV_IOFDSET; |
2354 | w->events &= ~EV__IOFDSET; |
2136 | |
2355 | |
2137 | EV_FREQUENT_CHECK; |
2356 | EV_FREQUENT_CHECK; |
2138 | } |
2357 | } |
2139 | |
2358 | |
2140 | void noinline |
2359 | void noinline |
… | |
… | |
2142 | { |
2361 | { |
2143 | clear_pending (EV_A_ (W)w); |
2362 | clear_pending (EV_A_ (W)w); |
2144 | if (expect_false (!ev_is_active (w))) |
2363 | if (expect_false (!ev_is_active (w))) |
2145 | return; |
2364 | return; |
2146 | |
2365 | |
2147 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2366 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2148 | |
2367 | |
2149 | EV_FREQUENT_CHECK; |
2368 | EV_FREQUENT_CHECK; |
2150 | |
2369 | |
2151 | wlist_del (&anfds[w->fd].head, (WL)w); |
2370 | wlist_del (&anfds[w->fd].head, (WL)w); |
2152 | ev_stop (EV_A_ (W)w); |
2371 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2162 | if (expect_false (ev_is_active (w))) |
2381 | if (expect_false (ev_is_active (w))) |
2163 | return; |
2382 | return; |
2164 | |
2383 | |
2165 | ev_at (w) += mn_now; |
2384 | ev_at (w) += mn_now; |
2166 | |
2385 | |
2167 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2386 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2168 | |
2387 | |
2169 | EV_FREQUENT_CHECK; |
2388 | EV_FREQUENT_CHECK; |
2170 | |
2389 | |
2171 | ++timercnt; |
2390 | ++timercnt; |
2172 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2391 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2175 | ANHE_at_cache (timers [ev_active (w)]); |
2394 | ANHE_at_cache (timers [ev_active (w)]); |
2176 | upheap (timers, ev_active (w)); |
2395 | upheap (timers, ev_active (w)); |
2177 | |
2396 | |
2178 | EV_FREQUENT_CHECK; |
2397 | EV_FREQUENT_CHECK; |
2179 | |
2398 | |
2180 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2399 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2181 | } |
2400 | } |
2182 | |
2401 | |
2183 | void noinline |
2402 | void noinline |
2184 | ev_timer_stop (EV_P_ ev_timer *w) |
2403 | ev_timer_stop (EV_P_ ev_timer *w) |
2185 | { |
2404 | { |
… | |
… | |
2190 | EV_FREQUENT_CHECK; |
2409 | EV_FREQUENT_CHECK; |
2191 | |
2410 | |
2192 | { |
2411 | { |
2193 | int active = ev_active (w); |
2412 | int active = ev_active (w); |
2194 | |
2413 | |
2195 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2414 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2196 | |
2415 | |
2197 | --timercnt; |
2416 | --timercnt; |
2198 | |
2417 | |
2199 | if (expect_true (active < timercnt + HEAP0)) |
2418 | if (expect_true (active < timercnt + HEAP0)) |
2200 | { |
2419 | { |
… | |
… | |
2244 | |
2463 | |
2245 | if (w->reschedule_cb) |
2464 | if (w->reschedule_cb) |
2246 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2465 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2247 | else if (w->interval) |
2466 | else if (w->interval) |
2248 | { |
2467 | { |
2249 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2468 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2250 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2469 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2251 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2470 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2252 | } |
2471 | } |
2253 | else |
2472 | else |
2254 | ev_at (w) = w->offset; |
2473 | ev_at (w) = w->offset; |
… | |
… | |
2262 | ANHE_at_cache (periodics [ev_active (w)]); |
2481 | ANHE_at_cache (periodics [ev_active (w)]); |
2263 | upheap (periodics, ev_active (w)); |
2482 | upheap (periodics, ev_active (w)); |
2264 | |
2483 | |
2265 | EV_FREQUENT_CHECK; |
2484 | EV_FREQUENT_CHECK; |
2266 | |
2485 | |
2267 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2486 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2268 | } |
2487 | } |
2269 | |
2488 | |
2270 | void noinline |
2489 | void noinline |
2271 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2490 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2272 | { |
2491 | { |
… | |
… | |
2277 | EV_FREQUENT_CHECK; |
2496 | EV_FREQUENT_CHECK; |
2278 | |
2497 | |
2279 | { |
2498 | { |
2280 | int active = ev_active (w); |
2499 | int active = ev_active (w); |
2281 | |
2500 | |
2282 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2501 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2283 | |
2502 | |
2284 | --periodiccnt; |
2503 | --periodiccnt; |
2285 | |
2504 | |
2286 | if (expect_true (active < periodiccnt + HEAP0)) |
2505 | if (expect_true (active < periodiccnt + HEAP0)) |
2287 | { |
2506 | { |
… | |
… | |
2310 | |
2529 | |
2311 | void noinline |
2530 | void noinline |
2312 | ev_signal_start (EV_P_ ev_signal *w) |
2531 | ev_signal_start (EV_P_ ev_signal *w) |
2313 | { |
2532 | { |
2314 | #if EV_MULTIPLICITY |
2533 | #if EV_MULTIPLICITY |
2315 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2534 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2316 | #endif |
2535 | #endif |
2317 | if (expect_false (ev_is_active (w))) |
2536 | if (expect_false (ev_is_active (w))) |
2318 | return; |
2537 | return; |
2319 | |
2538 | |
2320 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2539 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2321 | |
2540 | |
2322 | evpipe_init (EV_A); |
2541 | evpipe_init (EV_A); |
2323 | |
2542 | |
2324 | EV_FREQUENT_CHECK; |
2543 | EV_FREQUENT_CHECK; |
2325 | |
2544 | |
… | |
… | |
2376 | |
2595 | |
2377 | void |
2596 | void |
2378 | ev_child_start (EV_P_ ev_child *w) |
2597 | ev_child_start (EV_P_ ev_child *w) |
2379 | { |
2598 | { |
2380 | #if EV_MULTIPLICITY |
2599 | #if EV_MULTIPLICITY |
2381 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2600 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2382 | #endif |
2601 | #endif |
2383 | if (expect_false (ev_is_active (w))) |
2602 | if (expect_false (ev_is_active (w))) |
2384 | return; |
2603 | return; |
2385 | |
2604 | |
2386 | EV_FREQUENT_CHECK; |
2605 | EV_FREQUENT_CHECK; |
… | |
… | |
2411 | # ifdef _WIN32 |
2630 | # ifdef _WIN32 |
2412 | # undef lstat |
2631 | # undef lstat |
2413 | # define lstat(a,b) _stati64 (a,b) |
2632 | # define lstat(a,b) _stati64 (a,b) |
2414 | # endif |
2633 | # endif |
2415 | |
2634 | |
2416 | #define DEF_STAT_INTERVAL 5.0074891 |
2635 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2636 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2417 | #define MIN_STAT_INTERVAL 0.1074891 |
2637 | #define MIN_STAT_INTERVAL 0.1074891 |
2418 | |
2638 | |
2419 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2639 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2420 | |
2640 | |
2421 | #if EV_USE_INOTIFY |
2641 | #if EV_USE_INOTIFY |
2422 | # define EV_INOTIFY_BUFSIZE 8192 |
2642 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2426 | { |
2646 | { |
2427 | 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); |
2647 | 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); |
2428 | |
2648 | |
2429 | if (w->wd < 0) |
2649 | if (w->wd < 0) |
2430 | { |
2650 | { |
|
|
2651 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2431 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2652 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2432 | |
2653 | |
2433 | /* monitor some parent directory for speedup hints */ |
2654 | /* monitor some parent directory for speedup hints */ |
2434 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2655 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2435 | /* but an efficiency issue only */ |
2656 | /* but an efficiency issue only */ |
2436 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2657 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2437 | { |
2658 | { |
2438 | char path [4096]; |
2659 | char path [4096]; |
2439 | strcpy (path, w->path); |
2660 | strcpy (path, w->path); |
… | |
… | |
2443 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2664 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2444 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2665 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2445 | |
2666 | |
2446 | char *pend = strrchr (path, '/'); |
2667 | char *pend = strrchr (path, '/'); |
2447 | |
2668 | |
2448 | if (!pend) |
2669 | if (!pend || pend == path) |
2449 | break; /* whoops, no '/', complain to your admin */ |
2670 | break; |
2450 | |
2671 | |
2451 | *pend = 0; |
2672 | *pend = 0; |
2452 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2673 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2453 | } |
2674 | } |
2454 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2675 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2455 | } |
2676 | } |
2456 | } |
2677 | } |
2457 | else |
|
|
2458 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2459 | |
2678 | |
2460 | if (w->wd >= 0) |
2679 | if (w->wd >= 0) |
|
|
2680 | { |
2461 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2681 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2682 | |
|
|
2683 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2684 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2685 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2686 | struct statfs sfs; |
|
|
2687 | |
|
|
2688 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2689 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2690 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2691 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2692 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2693 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2694 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2695 | return; |
|
|
2696 | |
|
|
2697 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2698 | ev_timer_again (EV_A_ &w->timer); |
|
|
2699 | } |
2462 | } |
2700 | } |
2463 | |
2701 | |
2464 | static void noinline |
2702 | static void noinline |
2465 | infy_del (EV_P_ ev_stat *w) |
2703 | infy_del (EV_P_ ev_stat *w) |
2466 | { |
2704 | { |
… | |
… | |
2496 | |
2734 | |
2497 | if (w->wd == wd || wd == -1) |
2735 | if (w->wd == wd || wd == -1) |
2498 | { |
2736 | { |
2499 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2737 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2500 | { |
2738 | { |
|
|
2739 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2501 | w->wd = -1; |
2740 | w->wd = -1; |
2502 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2741 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2503 | } |
2742 | } |
2504 | |
2743 | |
2505 | stat_timer_cb (EV_A_ &w->timer, 0); |
2744 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2518 | |
2757 | |
2519 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2758 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2520 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2759 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2521 | } |
2760 | } |
2522 | |
2761 | |
2523 | void inline_size |
2762 | inline_size void |
2524 | infy_init (EV_P) |
2763 | check_2625 (EV_P) |
2525 | { |
2764 | { |
2526 | if (fs_fd != -2) |
|
|
2527 | return; |
|
|
2528 | |
|
|
2529 | /* kernels < 2.6.25 are borked |
2765 | /* kernels < 2.6.25 are borked |
2530 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2766 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2531 | */ |
2767 | */ |
2532 | { |
|
|
2533 | struct utsname buf; |
2768 | struct utsname buf; |
2534 | int major, minor, micro; |
2769 | int major, minor, micro; |
2535 | |
2770 | |
2536 | fs_fd = -1; |
|
|
2537 | |
|
|
2538 | if (uname (&buf)) |
2771 | if (uname (&buf)) |
2539 | return; |
2772 | return; |
2540 | |
2773 | |
2541 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
2774 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
2542 | return; |
2775 | return; |
2543 | |
2776 | |
2544 | if (major < 2 |
2777 | if (major < 2 |
2545 | || (major == 2 && minor < 6) |
2778 | || (major == 2 && minor < 6) |
2546 | || (major == 2 && minor == 6 && micro < 25)) |
2779 | || (major == 2 && minor == 6 && micro < 25)) |
2547 | return; |
2780 | return; |
2548 | } |
2781 | |
|
|
2782 | fs_2625 = 1; |
|
|
2783 | } |
|
|
2784 | |
|
|
2785 | inline_size void |
|
|
2786 | infy_init (EV_P) |
|
|
2787 | { |
|
|
2788 | if (fs_fd != -2) |
|
|
2789 | return; |
|
|
2790 | |
|
|
2791 | fs_fd = -1; |
|
|
2792 | |
|
|
2793 | check_2625 (EV_A); |
2549 | |
2794 | |
2550 | fs_fd = inotify_init (); |
2795 | fs_fd = inotify_init (); |
2551 | |
2796 | |
2552 | if (fs_fd >= 0) |
2797 | if (fs_fd >= 0) |
2553 | { |
2798 | { |
… | |
… | |
2555 | ev_set_priority (&fs_w, EV_MAXPRI); |
2800 | ev_set_priority (&fs_w, EV_MAXPRI); |
2556 | ev_io_start (EV_A_ &fs_w); |
2801 | ev_io_start (EV_A_ &fs_w); |
2557 | } |
2802 | } |
2558 | } |
2803 | } |
2559 | |
2804 | |
2560 | void inline_size |
2805 | inline_size void |
2561 | infy_fork (EV_P) |
2806 | infy_fork (EV_P) |
2562 | { |
2807 | { |
2563 | int slot; |
2808 | int slot; |
2564 | |
2809 | |
2565 | if (fs_fd < 0) |
2810 | if (fs_fd < 0) |
… | |
… | |
2581 | w->wd = -1; |
2826 | w->wd = -1; |
2582 | |
2827 | |
2583 | if (fs_fd >= 0) |
2828 | if (fs_fd >= 0) |
2584 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2829 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2585 | else |
2830 | else |
2586 | ev_timer_start (EV_A_ &w->timer); |
2831 | ev_timer_again (EV_A_ &w->timer); |
2587 | } |
2832 | } |
2588 | } |
2833 | } |
2589 | } |
2834 | } |
2590 | |
2835 | |
2591 | #endif |
2836 | #endif |
… | |
… | |
2646 | ev_stat_start (EV_P_ ev_stat *w) |
2891 | ev_stat_start (EV_P_ ev_stat *w) |
2647 | { |
2892 | { |
2648 | if (expect_false (ev_is_active (w))) |
2893 | if (expect_false (ev_is_active (w))) |
2649 | return; |
2894 | return; |
2650 | |
2895 | |
2651 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2652 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2653 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2654 | |
|
|
2655 | ev_stat_stat (EV_A_ w); |
2896 | ev_stat_stat (EV_A_ w); |
2656 | |
2897 | |
|
|
2898 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2657 | if (w->interval < MIN_STAT_INTERVAL) |
2899 | w->interval = MIN_STAT_INTERVAL; |
2658 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2659 | |
2900 | |
2660 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2901 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2661 | ev_set_priority (&w->timer, ev_priority (w)); |
2902 | ev_set_priority (&w->timer, ev_priority (w)); |
2662 | |
2903 | |
2663 | #if EV_USE_INOTIFY |
2904 | #if EV_USE_INOTIFY |
2664 | infy_init (EV_A); |
2905 | infy_init (EV_A); |
2665 | |
2906 | |
2666 | if (fs_fd >= 0) |
2907 | if (fs_fd >= 0) |
2667 | infy_add (EV_A_ w); |
2908 | infy_add (EV_A_ w); |
2668 | else |
2909 | else |
2669 | #endif |
2910 | #endif |
2670 | ev_timer_start (EV_A_ &w->timer); |
2911 | ev_timer_again (EV_A_ &w->timer); |
2671 | |
2912 | |
2672 | ev_start (EV_A_ (W)w, 1); |
2913 | ev_start (EV_A_ (W)w, 1); |
2673 | |
2914 | |
2674 | EV_FREQUENT_CHECK; |
2915 | EV_FREQUENT_CHECK; |
2675 | } |
2916 | } |
… | |
… | |
2850 | static void |
3091 | static void |
2851 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3092 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2852 | { |
3093 | { |
2853 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3094 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2854 | |
3095 | |
|
|
3096 | ev_embed_stop (EV_A_ w); |
|
|
3097 | |
2855 | { |
3098 | { |
2856 | struct ev_loop *loop = w->other; |
3099 | struct ev_loop *loop = w->other; |
2857 | |
3100 | |
2858 | ev_loop_fork (EV_A); |
3101 | ev_loop_fork (EV_A); |
|
|
3102 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2859 | } |
3103 | } |
|
|
3104 | |
|
|
3105 | ev_embed_start (EV_A_ w); |
2860 | } |
3106 | } |
2861 | |
3107 | |
2862 | #if 0 |
3108 | #if 0 |
2863 | static void |
3109 | static void |
2864 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3110 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2873 | if (expect_false (ev_is_active (w))) |
3119 | if (expect_false (ev_is_active (w))) |
2874 | return; |
3120 | return; |
2875 | |
3121 | |
2876 | { |
3122 | { |
2877 | struct ev_loop *loop = w->other; |
3123 | struct ev_loop *loop = w->other; |
2878 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3124 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2879 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3125 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2880 | } |
3126 | } |
2881 | |
3127 | |
2882 | EV_FREQUENT_CHECK; |
3128 | EV_FREQUENT_CHECK; |
2883 | |
3129 | |
… | |
… | |
3066 | ev_timer_set (&once->to, timeout, 0.); |
3312 | ev_timer_set (&once->to, timeout, 0.); |
3067 | ev_timer_start (EV_A_ &once->to); |
3313 | ev_timer_start (EV_A_ &once->to); |
3068 | } |
3314 | } |
3069 | } |
3315 | } |
3070 | |
3316 | |
|
|
3317 | /*****************************************************************************/ |
|
|
3318 | |
|
|
3319 | #if EV_WALK_ENABLE |
|
|
3320 | void |
|
|
3321 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3322 | { |
|
|
3323 | int i, j; |
|
|
3324 | ev_watcher_list *wl, *wn; |
|
|
3325 | |
|
|
3326 | if (types & (EV_IO | EV_EMBED)) |
|
|
3327 | for (i = 0; i < anfdmax; ++i) |
|
|
3328 | for (wl = anfds [i].head; wl; ) |
|
|
3329 | { |
|
|
3330 | wn = wl->next; |
|
|
3331 | |
|
|
3332 | #if EV_EMBED_ENABLE |
|
|
3333 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3334 | { |
|
|
3335 | if (types & EV_EMBED) |
|
|
3336 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3337 | } |
|
|
3338 | else |
|
|
3339 | #endif |
|
|
3340 | #if EV_USE_INOTIFY |
|
|
3341 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3342 | ; |
|
|
3343 | else |
|
|
3344 | #endif |
|
|
3345 | if ((ev_io *)wl != &pipe_w) |
|
|
3346 | if (types & EV_IO) |
|
|
3347 | cb (EV_A_ EV_IO, wl); |
|
|
3348 | |
|
|
3349 | wl = wn; |
|
|
3350 | } |
|
|
3351 | |
|
|
3352 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3353 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3354 | #if EV_STAT_ENABLE |
|
|
3355 | /*TODO: timer is not always active*/ |
|
|
3356 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3357 | { |
|
|
3358 | if (types & EV_STAT) |
|
|
3359 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3360 | } |
|
|
3361 | else |
|
|
3362 | #endif |
|
|
3363 | if (types & EV_TIMER) |
|
|
3364 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3365 | |
|
|
3366 | #if EV_PERIODIC_ENABLE |
|
|
3367 | if (types & EV_PERIODIC) |
|
|
3368 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3369 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3370 | #endif |
|
|
3371 | |
|
|
3372 | #if EV_IDLE_ENABLE |
|
|
3373 | if (types & EV_IDLE) |
|
|
3374 | for (j = NUMPRI; i--; ) |
|
|
3375 | for (i = idlecnt [j]; i--; ) |
|
|
3376 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3377 | #endif |
|
|
3378 | |
|
|
3379 | #if EV_FORK_ENABLE |
|
|
3380 | if (types & EV_FORK) |
|
|
3381 | for (i = forkcnt; i--; ) |
|
|
3382 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3383 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3384 | #endif |
|
|
3385 | |
|
|
3386 | #if EV_ASYNC_ENABLE |
|
|
3387 | if (types & EV_ASYNC) |
|
|
3388 | for (i = asynccnt; i--; ) |
|
|
3389 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3390 | #endif |
|
|
3391 | |
|
|
3392 | if (types & EV_PREPARE) |
|
|
3393 | for (i = preparecnt; i--; ) |
|
|
3394 | #if EV_EMBED_ENABLE |
|
|
3395 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3396 | #endif |
|
|
3397 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3398 | |
|
|
3399 | if (types & EV_CHECK) |
|
|
3400 | for (i = checkcnt; i--; ) |
|
|
3401 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3402 | |
|
|
3403 | if (types & EV_SIGNAL) |
|
|
3404 | for (i = 0; i < signalmax; ++i) |
|
|
3405 | for (wl = signals [i].head; wl; ) |
|
|
3406 | { |
|
|
3407 | wn = wl->next; |
|
|
3408 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3409 | wl = wn; |
|
|
3410 | } |
|
|
3411 | |
|
|
3412 | if (types & EV_CHILD) |
|
|
3413 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3414 | for (wl = childs [i]; wl; ) |
|
|
3415 | { |
|
|
3416 | wn = wl->next; |
|
|
3417 | cb (EV_A_ EV_CHILD, wl); |
|
|
3418 | wl = wn; |
|
|
3419 | } |
|
|
3420 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3421 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3422 | } |
|
|
3423 | #endif |
|
|
3424 | |
3071 | #if EV_MULTIPLICITY |
3425 | #if EV_MULTIPLICITY |
3072 | #include "ev_wrap.h" |
3426 | #include "ev_wrap.h" |
3073 | #endif |
3427 | #endif |
3074 | |
3428 | |
3075 | #ifdef __cplusplus |
3429 | #ifdef __cplusplus |