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 |
… | |
… | |
286 | # include <sys/select.h> |
322 | # include <sys/select.h> |
287 | # endif |
323 | # endif |
288 | #endif |
324 | #endif |
289 | |
325 | |
290 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
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327 | # include <sys/utsname.h> |
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328 | # include <sys/statfs.h> |
291 | # include <sys/inotify.h> |
329 | # include <sys/inotify.h> |
292 | /* 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 */ |
293 | # ifndef IN_DONT_FOLLOW |
331 | # ifndef IN_DONT_FOLLOW |
294 | # undef EV_USE_INOTIFY |
332 | # undef EV_USE_INOTIFY |
295 | # define EV_USE_INOTIFY 0 |
333 | # define EV_USE_INOTIFY 0 |
… | |
… | |
353 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
354 | #else |
392 | #else |
355 | # define inline_speed static inline |
393 | # define inline_speed static inline |
356 | #endif |
394 | #endif |
357 | |
395 | |
358 | #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 |
359 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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|
402 | #endif |
360 | |
403 | |
361 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
362 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
363 | |
406 | |
364 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
… | |
… | |
366 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
367 | |
410 | |
368 | #define ev_active(w) ((W)(w))->active |
411 | #define ev_active(w) ((W)(w))->active |
369 | #define ev_at(w) ((WT)(w))->at |
412 | #define ev_at(w) ((WT)(w))->at |
370 | |
413 | |
371 | #if EV_USE_MONOTONIC |
414 | #if EV_USE_REALTIME |
372 | /* 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 */ |
373 | /* 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 |
374 | 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? */ |
375 | #endif |
422 | #endif |
376 | |
423 | |
377 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
378 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
… | |
… | |
387 | { |
434 | { |
388 | syserr_cb = cb; |
435 | syserr_cb = cb; |
389 | } |
436 | } |
390 | |
437 | |
391 | static void noinline |
438 | static void noinline |
392 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
393 | { |
440 | { |
394 | if (!msg) |
441 | if (!msg) |
395 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
396 | |
443 | |
397 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
443 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
444 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
445 | |
492 | |
446 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
447 | |
494 | |
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|
495 | /* file descriptor info structure */ |
448 | typedef struct |
496 | typedef struct |
449 | { |
497 | { |
450 | WL head; |
498 | WL head; |
451 | unsigned char events; |
499 | unsigned char events; /* the events watched for */ |
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500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
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501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
452 | unsigned char reify; |
502 | unsigned char unused; |
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503 | #if EV_USE_EPOLL |
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504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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505 | #endif |
453 | #if EV_SELECT_IS_WINSOCKET |
506 | #if EV_SELECT_IS_WINSOCKET |
454 | SOCKET handle; |
507 | SOCKET handle; |
455 | #endif |
508 | #endif |
456 | } ANFD; |
509 | } ANFD; |
457 | |
510 | |
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|
511 | /* stores the pending event set for a given watcher */ |
458 | typedef struct |
512 | typedef struct |
459 | { |
513 | { |
460 | W w; |
514 | W w; |
461 | int events; |
515 | int events; /* the pending event set for the given watcher */ |
462 | } ANPENDING; |
516 | } ANPENDING; |
463 | |
517 | |
464 | #if EV_USE_INOTIFY |
518 | #if EV_USE_INOTIFY |
465 | /* hash table entry per inotify-id */ |
519 | /* hash table entry per inotify-id */ |
466 | typedef struct |
520 | typedef struct |
… | |
… | |
469 | } ANFS; |
523 | } ANFS; |
470 | #endif |
524 | #endif |
471 | |
525 | |
472 | /* Heap Entry */ |
526 | /* Heap Entry */ |
473 | #if EV_HEAP_CACHE_AT |
527 | #if EV_HEAP_CACHE_AT |
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|
528 | /* a heap element */ |
474 | typedef struct { |
529 | typedef struct { |
475 | ev_tstamp at; |
530 | ev_tstamp at; |
476 | WT w; |
531 | WT w; |
477 | } ANHE; |
532 | } ANHE; |
478 | |
533 | |
479 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
534 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
480 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
535 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
481 | #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 */ |
482 | #else |
537 | #else |
|
|
538 | /* a heap element */ |
483 | typedef WT ANHE; |
539 | typedef WT ANHE; |
484 | |
540 | |
485 | #define ANHE_w(he) (he) |
541 | #define ANHE_w(he) (he) |
486 | #define ANHE_at(he) (he)->at |
542 | #define ANHE_at(he) (he)->at |
487 | #define ANHE_at_cache(he) |
543 | #define ANHE_at_cache(he) |
… | |
… | |
513 | |
569 | |
514 | #endif |
570 | #endif |
515 | |
571 | |
516 | /*****************************************************************************/ |
572 | /*****************************************************************************/ |
517 | |
573 | |
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574 | #ifndef EV_HAVE_EV_TIME |
518 | ev_tstamp |
575 | ev_tstamp |
519 | ev_time (void) |
576 | ev_time (void) |
520 | { |
577 | { |
521 | #if EV_USE_REALTIME |
578 | #if EV_USE_REALTIME |
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579 | if (expect_true (have_realtime)) |
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580 | { |
522 | struct timespec ts; |
581 | struct timespec ts; |
523 | clock_gettime (CLOCK_REALTIME, &ts); |
582 | clock_gettime (CLOCK_REALTIME, &ts); |
524 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
583 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
525 | #else |
584 | } |
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585 | #endif |
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586 | |
526 | struct timeval tv; |
587 | struct timeval tv; |
527 | gettimeofday (&tv, 0); |
588 | gettimeofday (&tv, 0); |
528 | return tv.tv_sec + tv.tv_usec * 1e-6; |
589 | return tv.tv_sec + tv.tv_usec * 1e-6; |
529 | #endif |
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530 | } |
590 | } |
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591 | #endif |
531 | |
592 | |
532 | ev_tstamp inline_size |
593 | inline_size ev_tstamp |
533 | get_clock (void) |
594 | get_clock (void) |
534 | { |
595 | { |
535 | #if EV_USE_MONOTONIC |
596 | #if EV_USE_MONOTONIC |
536 | if (expect_true (have_monotonic)) |
597 | if (expect_true (have_monotonic)) |
537 | { |
598 | { |
… | |
… | |
571 | |
632 | |
572 | tv.tv_sec = (time_t)delay; |
633 | tv.tv_sec = (time_t)delay; |
573 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
634 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
574 | |
635 | |
575 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
636 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
576 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
637 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
577 | /* by older ones */ |
638 | /* by older ones */ |
578 | select (0, 0, 0, 0, &tv); |
639 | select (0, 0, 0, 0, &tv); |
579 | #endif |
640 | #endif |
580 | } |
641 | } |
581 | } |
642 | } |
582 | |
643 | |
583 | /*****************************************************************************/ |
644 | /*****************************************************************************/ |
584 | |
645 | |
585 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
646 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
586 | |
647 | |
587 | int inline_size |
648 | /* find a suitable new size for the given array, */ |
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649 | /* hopefully by rounding to a ncie-to-malloc size */ |
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650 | inline_size int |
588 | array_nextsize (int elem, int cur, int cnt) |
651 | array_nextsize (int elem, int cur, int cnt) |
589 | { |
652 | { |
590 | int ncur = cur + 1; |
653 | int ncur = cur + 1; |
591 | |
654 | |
592 | do |
655 | do |
… | |
… | |
609 | array_realloc (int elem, void *base, int *cur, int cnt) |
672 | array_realloc (int elem, void *base, int *cur, int cnt) |
610 | { |
673 | { |
611 | *cur = array_nextsize (elem, *cur, cnt); |
674 | *cur = array_nextsize (elem, *cur, cnt); |
612 | return ev_realloc (base, elem * *cur); |
675 | return ev_realloc (base, elem * *cur); |
613 | } |
676 | } |
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677 | |
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678 | #define array_init_zero(base,count) \ |
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|
679 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
614 | |
680 | |
615 | #define array_needsize(type,base,cur,cnt,init) \ |
681 | #define array_needsize(type,base,cur,cnt,init) \ |
616 | if (expect_false ((cnt) > (cur))) \ |
682 | if (expect_false ((cnt) > (cur))) \ |
617 | { \ |
683 | { \ |
618 | int ocur_ = (cur); \ |
684 | int ocur_ = (cur); \ |
… | |
… | |
630 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
696 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
631 | } |
697 | } |
632 | #endif |
698 | #endif |
633 | |
699 | |
634 | #define array_free(stem, idx) \ |
700 | #define array_free(stem, idx) \ |
635 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
701 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
636 | |
702 | |
637 | /*****************************************************************************/ |
703 | /*****************************************************************************/ |
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704 | |
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705 | /* dummy callback for pending events */ |
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706 | static void noinline |
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707 | pendingcb (EV_P_ ev_prepare *w, int revents) |
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708 | { |
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709 | } |
638 | |
710 | |
639 | void noinline |
711 | void noinline |
640 | ev_feed_event (EV_P_ void *w, int revents) |
712 | ev_feed_event (EV_P_ void *w, int revents) |
641 | { |
713 | { |
642 | W w_ = (W)w; |
714 | W w_ = (W)w; |
… | |
… | |
651 | pendings [pri][w_->pending - 1].w = w_; |
723 | pendings [pri][w_->pending - 1].w = w_; |
652 | pendings [pri][w_->pending - 1].events = revents; |
724 | pendings [pri][w_->pending - 1].events = revents; |
653 | } |
725 | } |
654 | } |
726 | } |
655 | |
727 | |
656 | void inline_speed |
728 | inline_speed void |
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729 | feed_reverse (EV_P_ W w) |
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730 | { |
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731 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
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732 | rfeeds [rfeedcnt++] = w; |
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733 | } |
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734 | |
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735 | inline_size void |
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736 | feed_reverse_done (EV_P_ int revents) |
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737 | { |
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|
738 | do |
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739 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
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740 | while (rfeedcnt); |
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741 | } |
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742 | |
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743 | inline_speed void |
657 | queue_events (EV_P_ W *events, int eventcnt, int type) |
744 | queue_events (EV_P_ W *events, int eventcnt, int type) |
658 | { |
745 | { |
659 | int i; |
746 | int i; |
660 | |
747 | |
661 | for (i = 0; i < eventcnt; ++i) |
748 | for (i = 0; i < eventcnt; ++i) |
662 | ev_feed_event (EV_A_ events [i], type); |
749 | ev_feed_event (EV_A_ events [i], type); |
663 | } |
750 | } |
664 | |
751 | |
665 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
666 | |
753 | |
667 | void inline_size |
754 | inline_speed void |
668 | anfds_init (ANFD *base, int count) |
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669 | { |
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670 | while (count--) |
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671 | { |
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672 | base->head = 0; |
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673 | base->events = EV_NONE; |
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674 | base->reify = 0; |
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675 | |
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676 | ++base; |
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677 | } |
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678 | } |
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679 | |
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680 | void inline_speed |
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681 | fd_event (EV_P_ int fd, int revents) |
755 | fd_event (EV_P_ int fd, int revents) |
682 | { |
756 | { |
683 | ANFD *anfd = anfds + fd; |
757 | ANFD *anfd = anfds + fd; |
684 | ev_io *w; |
758 | ev_io *w; |
685 | |
759 | |
… | |
… | |
697 | { |
771 | { |
698 | if (fd >= 0 && fd < anfdmax) |
772 | if (fd >= 0 && fd < anfdmax) |
699 | fd_event (EV_A_ fd, revents); |
773 | fd_event (EV_A_ fd, revents); |
700 | } |
774 | } |
701 | |
775 | |
702 | void inline_size |
776 | /* make sure the external fd watch events are in-sync */ |
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777 | /* with the kernel/libev internal state */ |
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778 | inline_size void |
703 | fd_reify (EV_P) |
779 | fd_reify (EV_P) |
704 | { |
780 | { |
705 | int i; |
781 | int i; |
706 | |
782 | |
707 | for (i = 0; i < fdchangecnt; ++i) |
783 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
722 | #ifdef EV_FD_TO_WIN32_HANDLE |
798 | #ifdef EV_FD_TO_WIN32_HANDLE |
723 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
799 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
724 | #else |
800 | #else |
725 | anfd->handle = _get_osfhandle (fd); |
801 | anfd->handle = _get_osfhandle (fd); |
726 | #endif |
802 | #endif |
727 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
803 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
728 | } |
804 | } |
729 | #endif |
805 | #endif |
730 | |
806 | |
731 | { |
807 | { |
732 | unsigned char o_events = anfd->events; |
808 | unsigned char o_events = anfd->events; |
733 | unsigned char o_reify = anfd->reify; |
809 | unsigned char o_reify = anfd->reify; |
734 | |
810 | |
735 | anfd->reify = 0; |
811 | anfd->reify = 0; |
736 | anfd->events = events; |
812 | anfd->events = events; |
737 | |
813 | |
738 | if (o_events != events || o_reify & EV_IOFDSET) |
814 | if (o_events != events || o_reify & EV__IOFDSET) |
739 | backend_modify (EV_A_ fd, o_events, events); |
815 | backend_modify (EV_A_ fd, o_events, events); |
740 | } |
816 | } |
741 | } |
817 | } |
742 | |
818 | |
743 | fdchangecnt = 0; |
819 | fdchangecnt = 0; |
744 | } |
820 | } |
745 | |
821 | |
746 | void inline_size |
822 | /* something about the given fd changed */ |
|
|
823 | inline_size void |
747 | fd_change (EV_P_ int fd, int flags) |
824 | fd_change (EV_P_ int fd, int flags) |
748 | { |
825 | { |
749 | unsigned char reify = anfds [fd].reify; |
826 | unsigned char reify = anfds [fd].reify; |
750 | anfds [fd].reify |= flags; |
827 | anfds [fd].reify |= flags; |
751 | |
828 | |
… | |
… | |
755 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
832 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
756 | fdchanges [fdchangecnt - 1] = fd; |
833 | fdchanges [fdchangecnt - 1] = fd; |
757 | } |
834 | } |
758 | } |
835 | } |
759 | |
836 | |
760 | void inline_speed |
837 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
838 | inline_speed void |
761 | fd_kill (EV_P_ int fd) |
839 | fd_kill (EV_P_ int fd) |
762 | { |
840 | { |
763 | ev_io *w; |
841 | ev_io *w; |
764 | |
842 | |
765 | while ((w = (ev_io *)anfds [fd].head)) |
843 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
767 | ev_io_stop (EV_A_ w); |
845 | ev_io_stop (EV_A_ w); |
768 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
846 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
769 | } |
847 | } |
770 | } |
848 | } |
771 | |
849 | |
772 | int inline_size |
850 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
851 | inline_size int |
773 | fd_valid (int fd) |
852 | fd_valid (int fd) |
774 | { |
853 | { |
775 | #ifdef _WIN32 |
854 | #ifdef _WIN32 |
776 | return _get_osfhandle (fd) != -1; |
855 | return _get_osfhandle (fd) != -1; |
777 | #else |
856 | #else |
… | |
… | |
813 | |
892 | |
814 | for (fd = 0; fd < anfdmax; ++fd) |
893 | for (fd = 0; fd < anfdmax; ++fd) |
815 | if (anfds [fd].events) |
894 | if (anfds [fd].events) |
816 | { |
895 | { |
817 | anfds [fd].events = 0; |
896 | anfds [fd].events = 0; |
|
|
897 | anfds [fd].emask = 0; |
818 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
819 | } |
899 | } |
820 | } |
900 | } |
821 | |
901 | |
822 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
823 | |
903 | |
… | |
… | |
839 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
919 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
840 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
920 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
841 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
921 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
842 | |
922 | |
843 | /* away from the root */ |
923 | /* away from the root */ |
844 | void inline_speed |
924 | inline_speed void |
845 | downheap (ANHE *heap, int N, int k) |
925 | downheap (ANHE *heap, int N, int k) |
846 | { |
926 | { |
847 | ANHE he = heap [k]; |
927 | ANHE he = heap [k]; |
848 | ANHE *E = heap + N + HEAP0; |
928 | ANHE *E = heap + N + HEAP0; |
849 | |
929 | |
… | |
… | |
889 | #define HEAP0 1 |
969 | #define HEAP0 1 |
890 | #define HPARENT(k) ((k) >> 1) |
970 | #define HPARENT(k) ((k) >> 1) |
891 | #define UPHEAP_DONE(p,k) (!(p)) |
971 | #define UPHEAP_DONE(p,k) (!(p)) |
892 | |
972 | |
893 | /* away from the root */ |
973 | /* away from the root */ |
894 | void inline_speed |
974 | inline_speed void |
895 | downheap (ANHE *heap, int N, int k) |
975 | downheap (ANHE *heap, int N, int k) |
896 | { |
976 | { |
897 | ANHE he = heap [k]; |
977 | ANHE he = heap [k]; |
898 | |
978 | |
899 | for (;;) |
979 | for (;;) |
… | |
… | |
919 | ev_active (ANHE_w (he)) = k; |
999 | ev_active (ANHE_w (he)) = k; |
920 | } |
1000 | } |
921 | #endif |
1001 | #endif |
922 | |
1002 | |
923 | /* towards the root */ |
1003 | /* towards the root */ |
924 | void inline_speed |
1004 | inline_speed void |
925 | upheap (ANHE *heap, int k) |
1005 | upheap (ANHE *heap, int k) |
926 | { |
1006 | { |
927 | ANHE he = heap [k]; |
1007 | ANHE he = heap [k]; |
928 | |
1008 | |
929 | for (;;) |
1009 | for (;;) |
… | |
… | |
940 | |
1020 | |
941 | heap [k] = he; |
1021 | heap [k] = he; |
942 | ev_active (ANHE_w (he)) = k; |
1022 | ev_active (ANHE_w (he)) = k; |
943 | } |
1023 | } |
944 | |
1024 | |
945 | void inline_size |
1025 | /* move an element suitably so it is in a correct place */ |
|
|
1026 | inline_size void |
946 | adjustheap (ANHE *heap, int N, int k) |
1027 | adjustheap (ANHE *heap, int N, int k) |
947 | { |
1028 | { |
948 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1029 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
949 | upheap (heap, k); |
1030 | upheap (heap, k); |
950 | else |
1031 | else |
951 | downheap (heap, N, k); |
1032 | downheap (heap, N, k); |
952 | } |
1033 | } |
953 | |
1034 | |
954 | /* rebuild the heap: this function is used only once and executed rarely */ |
1035 | /* rebuild the heap: this function is used only once and executed rarely */ |
955 | void inline_size |
1036 | inline_size void |
956 | reheap (ANHE *heap, int N) |
1037 | reheap (ANHE *heap, int N) |
957 | { |
1038 | { |
958 | int i; |
1039 | int i; |
959 | |
1040 | |
960 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1041 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
963 | upheap (heap, i + HEAP0); |
1044 | upheap (heap, i + HEAP0); |
964 | } |
1045 | } |
965 | |
1046 | |
966 | /*****************************************************************************/ |
1047 | /*****************************************************************************/ |
967 | |
1048 | |
|
|
1049 | /* associate signal watchers to a signal signal */ |
968 | typedef struct |
1050 | typedef struct |
969 | { |
1051 | { |
970 | WL head; |
1052 | WL head; |
971 | EV_ATOMIC_T gotsig; |
1053 | EV_ATOMIC_T gotsig; |
972 | } ANSIG; |
1054 | } ANSIG; |
… | |
… | |
974 | static ANSIG *signals; |
1056 | static ANSIG *signals; |
975 | static int signalmax; |
1057 | static int signalmax; |
976 | |
1058 | |
977 | static EV_ATOMIC_T gotsig; |
1059 | static EV_ATOMIC_T gotsig; |
978 | |
1060 | |
979 | void inline_size |
|
|
980 | signals_init (ANSIG *base, int count) |
|
|
981 | { |
|
|
982 | while (count--) |
|
|
983 | { |
|
|
984 | base->head = 0; |
|
|
985 | base->gotsig = 0; |
|
|
986 | |
|
|
987 | ++base; |
|
|
988 | } |
|
|
989 | } |
|
|
990 | |
|
|
991 | /*****************************************************************************/ |
1061 | /*****************************************************************************/ |
992 | |
1062 | |
993 | void inline_speed |
1063 | /* used to prepare libev internal fd's */ |
|
|
1064 | /* this is not fork-safe */ |
|
|
1065 | inline_speed void |
994 | fd_intern (int fd) |
1066 | fd_intern (int fd) |
995 | { |
1067 | { |
996 | #ifdef _WIN32 |
1068 | #ifdef _WIN32 |
997 | unsigned long arg = 1; |
1069 | unsigned long arg = 1; |
998 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1070 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
1003 | } |
1075 | } |
1004 | |
1076 | |
1005 | static void noinline |
1077 | static void noinline |
1006 | evpipe_init (EV_P) |
1078 | evpipe_init (EV_P) |
1007 | { |
1079 | { |
1008 | if (!ev_is_active (&pipeev)) |
1080 | if (!ev_is_active (&pipe_w)) |
1009 | { |
1081 | { |
1010 | #if EV_USE_EVENTFD |
1082 | #if EV_USE_EVENTFD |
1011 | if ((evfd = eventfd (0, 0)) >= 0) |
1083 | if ((evfd = eventfd (0, 0)) >= 0) |
1012 | { |
1084 | { |
1013 | evpipe [0] = -1; |
1085 | evpipe [0] = -1; |
1014 | fd_intern (evfd); |
1086 | fd_intern (evfd); |
1015 | ev_io_set (&pipeev, evfd, EV_READ); |
1087 | ev_io_set (&pipe_w, evfd, EV_READ); |
1016 | } |
1088 | } |
1017 | else |
1089 | else |
1018 | #endif |
1090 | #endif |
1019 | { |
1091 | { |
1020 | while (pipe (evpipe)) |
1092 | while (pipe (evpipe)) |
1021 | syserr ("(libev) error creating signal/async pipe"); |
1093 | ev_syserr ("(libev) error creating signal/async pipe"); |
1022 | |
1094 | |
1023 | fd_intern (evpipe [0]); |
1095 | fd_intern (evpipe [0]); |
1024 | fd_intern (evpipe [1]); |
1096 | fd_intern (evpipe [1]); |
1025 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1097 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1026 | } |
1098 | } |
1027 | |
1099 | |
1028 | ev_io_start (EV_A_ &pipeev); |
1100 | ev_io_start (EV_A_ &pipe_w); |
1029 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1101 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1030 | } |
1102 | } |
1031 | } |
1103 | } |
1032 | |
1104 | |
1033 | void inline_size |
1105 | inline_size void |
1034 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1106 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1035 | { |
1107 | { |
1036 | if (!*flag) |
1108 | if (!*flag) |
1037 | { |
1109 | { |
1038 | int old_errno = errno; /* save errno because write might clobber it */ |
1110 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1051 | |
1123 | |
1052 | errno = old_errno; |
1124 | errno = old_errno; |
1053 | } |
1125 | } |
1054 | } |
1126 | } |
1055 | |
1127 | |
|
|
1128 | /* called whenever the libev signal pipe */ |
|
|
1129 | /* got some events (signal, async) */ |
1056 | static void |
1130 | static void |
1057 | pipecb (EV_P_ ev_io *iow, int revents) |
1131 | pipecb (EV_P_ ev_io *iow, int revents) |
1058 | { |
1132 | { |
1059 | #if EV_USE_EVENTFD |
1133 | #if EV_USE_EVENTFD |
1060 | if (evfd >= 0) |
1134 | if (evfd >= 0) |
… | |
… | |
1116 | ev_feed_signal_event (EV_P_ int signum) |
1190 | ev_feed_signal_event (EV_P_ int signum) |
1117 | { |
1191 | { |
1118 | WL w; |
1192 | WL w; |
1119 | |
1193 | |
1120 | #if EV_MULTIPLICITY |
1194 | #if EV_MULTIPLICITY |
1121 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1195 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1122 | #endif |
1196 | #endif |
1123 | |
1197 | |
1124 | --signum; |
1198 | --signum; |
1125 | |
1199 | |
1126 | if (signum < 0 || signum >= signalmax) |
1200 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1142 | |
1216 | |
1143 | #ifndef WIFCONTINUED |
1217 | #ifndef WIFCONTINUED |
1144 | # define WIFCONTINUED(status) 0 |
1218 | # define WIFCONTINUED(status) 0 |
1145 | #endif |
1219 | #endif |
1146 | |
1220 | |
1147 | void inline_speed |
1221 | /* handle a single child status event */ |
|
|
1222 | inline_speed void |
1148 | child_reap (EV_P_ int chain, int pid, int status) |
1223 | child_reap (EV_P_ int chain, int pid, int status) |
1149 | { |
1224 | { |
1150 | ev_child *w; |
1225 | ev_child *w; |
1151 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1226 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1152 | |
1227 | |
… | |
… | |
1165 | |
1240 | |
1166 | #ifndef WCONTINUED |
1241 | #ifndef WCONTINUED |
1167 | # define WCONTINUED 0 |
1242 | # define WCONTINUED 0 |
1168 | #endif |
1243 | #endif |
1169 | |
1244 | |
|
|
1245 | /* called on sigchld etc., calls waitpid */ |
1170 | static void |
1246 | static void |
1171 | childcb (EV_P_ ev_signal *sw, int revents) |
1247 | childcb (EV_P_ ev_signal *sw, int revents) |
1172 | { |
1248 | { |
1173 | int pid, status; |
1249 | int pid, status; |
1174 | |
1250 | |
… | |
… | |
1255 | /* kqueue is borked on everything but netbsd apparently */ |
1331 | /* kqueue is borked on everything but netbsd apparently */ |
1256 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1332 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1257 | flags &= ~EVBACKEND_KQUEUE; |
1333 | flags &= ~EVBACKEND_KQUEUE; |
1258 | #endif |
1334 | #endif |
1259 | #ifdef __APPLE__ |
1335 | #ifdef __APPLE__ |
1260 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1336 | /* only select works correctly on that "unix-certified" platform */ |
1261 | flags &= ~EVBACKEND_POLL; |
1337 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1338 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1262 | #endif |
1339 | #endif |
1263 | |
1340 | |
1264 | return flags; |
1341 | return flags; |
1265 | } |
1342 | } |
1266 | |
1343 | |
… | |
… | |
1286 | ev_loop_count (EV_P) |
1363 | ev_loop_count (EV_P) |
1287 | { |
1364 | { |
1288 | return loop_count; |
1365 | return loop_count; |
1289 | } |
1366 | } |
1290 | |
1367 | |
|
|
1368 | unsigned int |
|
|
1369 | ev_loop_depth (EV_P) |
|
|
1370 | { |
|
|
1371 | return loop_depth; |
|
|
1372 | } |
|
|
1373 | |
1291 | void |
1374 | void |
1292 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1375 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1293 | { |
1376 | { |
1294 | io_blocktime = interval; |
1377 | io_blocktime = interval; |
1295 | } |
1378 | } |
… | |
… | |
1298 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1299 | { |
1382 | { |
1300 | timeout_blocktime = interval; |
1383 | timeout_blocktime = interval; |
1301 | } |
1384 | } |
1302 | |
1385 | |
|
|
1386 | /* initialise a loop structure, must be zero-initialised */ |
1303 | static void noinline |
1387 | static void noinline |
1304 | loop_init (EV_P_ unsigned int flags) |
1388 | loop_init (EV_P_ unsigned int flags) |
1305 | { |
1389 | { |
1306 | if (!backend) |
1390 | if (!backend) |
1307 | { |
1391 | { |
|
|
1392 | #if EV_USE_REALTIME |
|
|
1393 | if (!have_realtime) |
|
|
1394 | { |
|
|
1395 | struct timespec ts; |
|
|
1396 | |
|
|
1397 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1398 | have_realtime = 1; |
|
|
1399 | } |
|
|
1400 | #endif |
|
|
1401 | |
1308 | #if EV_USE_MONOTONIC |
1402 | #if EV_USE_MONOTONIC |
|
|
1403 | if (!have_monotonic) |
1309 | { |
1404 | { |
1310 | struct timespec ts; |
1405 | struct timespec ts; |
|
|
1406 | |
1311 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1407 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1312 | have_monotonic = 1; |
1408 | have_monotonic = 1; |
1313 | } |
1409 | } |
1314 | #endif |
1410 | #endif |
1315 | |
1411 | |
1316 | ev_rt_now = ev_time (); |
1412 | ev_rt_now = ev_time (); |
1317 | mn_now = get_clock (); |
1413 | mn_now = get_clock (); |
1318 | now_floor = mn_now; |
1414 | now_floor = mn_now; |
… | |
… | |
1355 | #endif |
1451 | #endif |
1356 | #if EV_USE_SELECT |
1452 | #if EV_USE_SELECT |
1357 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1453 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1358 | #endif |
1454 | #endif |
1359 | |
1455 | |
|
|
1456 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1457 | |
1360 | ev_init (&pipeev, pipecb); |
1458 | ev_init (&pipe_w, pipecb); |
1361 | ev_set_priority (&pipeev, EV_MAXPRI); |
1459 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1362 | } |
1460 | } |
1363 | } |
1461 | } |
1364 | |
1462 | |
|
|
1463 | /* free up a loop structure */ |
1365 | static void noinline |
1464 | static void noinline |
1366 | loop_destroy (EV_P) |
1465 | loop_destroy (EV_P) |
1367 | { |
1466 | { |
1368 | int i; |
1467 | int i; |
1369 | |
1468 | |
1370 | if (ev_is_active (&pipeev)) |
1469 | if (ev_is_active (&pipe_w)) |
1371 | { |
1470 | { |
1372 | ev_ref (EV_A); /* signal watcher */ |
1471 | ev_ref (EV_A); /* signal watcher */ |
1373 | ev_io_stop (EV_A_ &pipeev); |
1472 | ev_io_stop (EV_A_ &pipe_w); |
1374 | |
1473 | |
1375 | #if EV_USE_EVENTFD |
1474 | #if EV_USE_EVENTFD |
1376 | if (evfd >= 0) |
1475 | if (evfd >= 0) |
1377 | close (evfd); |
1476 | close (evfd); |
1378 | #endif |
1477 | #endif |
… | |
… | |
1417 | } |
1516 | } |
1418 | |
1517 | |
1419 | ev_free (anfds); anfdmax = 0; |
1518 | ev_free (anfds); anfdmax = 0; |
1420 | |
1519 | |
1421 | /* have to use the microsoft-never-gets-it-right macro */ |
1520 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1521 | array_free (rfeed, EMPTY); |
1422 | array_free (fdchange, EMPTY); |
1522 | array_free (fdchange, EMPTY); |
1423 | array_free (timer, EMPTY); |
1523 | array_free (timer, EMPTY); |
1424 | #if EV_PERIODIC_ENABLE |
1524 | #if EV_PERIODIC_ENABLE |
1425 | array_free (periodic, EMPTY); |
1525 | array_free (periodic, EMPTY); |
1426 | #endif |
1526 | #endif |
… | |
… | |
1435 | |
1535 | |
1436 | backend = 0; |
1536 | backend = 0; |
1437 | } |
1537 | } |
1438 | |
1538 | |
1439 | #if EV_USE_INOTIFY |
1539 | #if EV_USE_INOTIFY |
1440 | void inline_size infy_fork (EV_P); |
1540 | inline_size void infy_fork (EV_P); |
1441 | #endif |
1541 | #endif |
1442 | |
1542 | |
1443 | void inline_size |
1543 | inline_size void |
1444 | loop_fork (EV_P) |
1544 | loop_fork (EV_P) |
1445 | { |
1545 | { |
1446 | #if EV_USE_PORT |
1546 | #if EV_USE_PORT |
1447 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1547 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1448 | #endif |
1548 | #endif |
… | |
… | |
1454 | #endif |
1554 | #endif |
1455 | #if EV_USE_INOTIFY |
1555 | #if EV_USE_INOTIFY |
1456 | infy_fork (EV_A); |
1556 | infy_fork (EV_A); |
1457 | #endif |
1557 | #endif |
1458 | |
1558 | |
1459 | if (ev_is_active (&pipeev)) |
1559 | if (ev_is_active (&pipe_w)) |
1460 | { |
1560 | { |
1461 | /* this "locks" the handlers against writing to the pipe */ |
1561 | /* this "locks" the handlers against writing to the pipe */ |
1462 | /* while we modify the fd vars */ |
1562 | /* while we modify the fd vars */ |
1463 | gotsig = 1; |
1563 | gotsig = 1; |
1464 | #if EV_ASYNC_ENABLE |
1564 | #if EV_ASYNC_ENABLE |
1465 | gotasync = 1; |
1565 | gotasync = 1; |
1466 | #endif |
1566 | #endif |
1467 | |
1567 | |
1468 | ev_ref (EV_A); |
1568 | ev_ref (EV_A); |
1469 | ev_io_stop (EV_A_ &pipeev); |
1569 | ev_io_stop (EV_A_ &pipe_w); |
1470 | |
1570 | |
1471 | #if EV_USE_EVENTFD |
1571 | #if EV_USE_EVENTFD |
1472 | if (evfd >= 0) |
1572 | if (evfd >= 0) |
1473 | close (evfd); |
1573 | close (evfd); |
1474 | #endif |
1574 | #endif |
… | |
… | |
1479 | close (evpipe [1]); |
1579 | close (evpipe [1]); |
1480 | } |
1580 | } |
1481 | |
1581 | |
1482 | evpipe_init (EV_A); |
1582 | evpipe_init (EV_A); |
1483 | /* now iterate over everything, in case we missed something */ |
1583 | /* now iterate over everything, in case we missed something */ |
1484 | pipecb (EV_A_ &pipeev, EV_READ); |
1584 | pipecb (EV_A_ &pipe_w, EV_READ); |
1485 | } |
1585 | } |
1486 | |
1586 | |
1487 | postfork = 0; |
1587 | postfork = 0; |
1488 | } |
1588 | } |
1489 | |
1589 | |
… | |
… | |
1519 | |
1619 | |
1520 | #if EV_VERIFY |
1620 | #if EV_VERIFY |
1521 | static void noinline |
1621 | static void noinline |
1522 | verify_watcher (EV_P_ W w) |
1622 | verify_watcher (EV_P_ W w) |
1523 | { |
1623 | { |
1524 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1624 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1525 | |
1625 | |
1526 | if (w->pending) |
1626 | if (w->pending) |
1527 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1627 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1528 | } |
1628 | } |
1529 | |
1629 | |
1530 | static void noinline |
1630 | static void noinline |
1531 | verify_heap (EV_P_ ANHE *heap, int N) |
1631 | verify_heap (EV_P_ ANHE *heap, int N) |
1532 | { |
1632 | { |
1533 | int i; |
1633 | int i; |
1534 | |
1634 | |
1535 | for (i = HEAP0; i < N + HEAP0; ++i) |
1635 | for (i = HEAP0; i < N + HEAP0; ++i) |
1536 | { |
1636 | { |
1537 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1637 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1538 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1638 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1539 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1639 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1540 | |
1640 | |
1541 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1641 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1542 | } |
1642 | } |
1543 | } |
1643 | } |
1544 | |
1644 | |
1545 | static void noinline |
1645 | static void noinline |
1546 | array_verify (EV_P_ W *ws, int cnt) |
1646 | array_verify (EV_P_ W *ws, int cnt) |
1547 | { |
1647 | { |
1548 | while (cnt--) |
1648 | while (cnt--) |
1549 | { |
1649 | { |
1550 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1650 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1551 | verify_watcher (EV_A_ ws [cnt]); |
1651 | verify_watcher (EV_A_ ws [cnt]); |
1552 | } |
1652 | } |
1553 | } |
1653 | } |
1554 | #endif |
1654 | #endif |
1555 | |
1655 | |
… | |
… | |
1562 | |
1662 | |
1563 | assert (activecnt >= -1); |
1663 | assert (activecnt >= -1); |
1564 | |
1664 | |
1565 | assert (fdchangemax >= fdchangecnt); |
1665 | assert (fdchangemax >= fdchangecnt); |
1566 | for (i = 0; i < fdchangecnt; ++i) |
1666 | for (i = 0; i < fdchangecnt; ++i) |
1567 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1667 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1568 | |
1668 | |
1569 | assert (anfdmax >= 0); |
1669 | assert (anfdmax >= 0); |
1570 | for (i = 0; i < anfdmax; ++i) |
1670 | for (i = 0; i < anfdmax; ++i) |
1571 | for (w = anfds [i].head; w; w = w->next) |
1671 | for (w = anfds [i].head; w; w = w->next) |
1572 | { |
1672 | { |
1573 | verify_watcher (EV_A_ (W)w); |
1673 | verify_watcher (EV_A_ (W)w); |
1574 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1674 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1575 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1675 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1576 | } |
1676 | } |
1577 | |
1677 | |
1578 | assert (timermax >= timercnt); |
1678 | assert (timermax >= timercnt); |
1579 | verify_heap (EV_A_ timers, timercnt); |
1679 | verify_heap (EV_A_ timers, timercnt); |
1580 | |
1680 | |
… | |
… | |
1657 | { |
1757 | { |
1658 | #if EV_MULTIPLICITY |
1758 | #if EV_MULTIPLICITY |
1659 | struct ev_loop *loop = ev_default_loop_ptr; |
1759 | struct ev_loop *loop = ev_default_loop_ptr; |
1660 | #endif |
1760 | #endif |
1661 | |
1761 | |
|
|
1762 | ev_default_loop_ptr = 0; |
|
|
1763 | |
1662 | #ifndef _WIN32 |
1764 | #ifndef _WIN32 |
1663 | ev_ref (EV_A); /* child watcher */ |
1765 | ev_ref (EV_A); /* child watcher */ |
1664 | ev_signal_stop (EV_A_ &childev); |
1766 | ev_signal_stop (EV_A_ &childev); |
1665 | #endif |
1767 | #endif |
1666 | |
1768 | |
… | |
… | |
1672 | { |
1774 | { |
1673 | #if EV_MULTIPLICITY |
1775 | #if EV_MULTIPLICITY |
1674 | struct ev_loop *loop = ev_default_loop_ptr; |
1776 | struct ev_loop *loop = ev_default_loop_ptr; |
1675 | #endif |
1777 | #endif |
1676 | |
1778 | |
1677 | if (backend) |
|
|
1678 | postfork = 1; /* must be in line with ev_loop_fork */ |
1779 | postfork = 1; /* must be in line with ev_loop_fork */ |
1679 | } |
1780 | } |
1680 | |
1781 | |
1681 | /*****************************************************************************/ |
1782 | /*****************************************************************************/ |
1682 | |
1783 | |
1683 | void |
1784 | void |
1684 | ev_invoke (EV_P_ void *w, int revents) |
1785 | ev_invoke (EV_P_ void *w, int revents) |
1685 | { |
1786 | { |
1686 | EV_CB_INVOKE ((W)w, revents); |
1787 | EV_CB_INVOKE ((W)w, revents); |
1687 | } |
1788 | } |
1688 | |
1789 | |
1689 | void inline_speed |
1790 | inline_speed void |
1690 | call_pending (EV_P) |
1791 | call_pending (EV_P) |
1691 | { |
1792 | { |
1692 | int pri; |
1793 | int pri; |
1693 | |
1794 | |
1694 | for (pri = NUMPRI; pri--; ) |
1795 | for (pri = NUMPRI; pri--; ) |
1695 | while (pendingcnt [pri]) |
1796 | while (pendingcnt [pri]) |
1696 | { |
1797 | { |
1697 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1798 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1698 | |
1799 | |
1699 | if (expect_true (p->w)) |
|
|
1700 | { |
|
|
1701 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1800 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1801 | /* ^ this is no longer true, as pending_w could be here */ |
1702 | |
1802 | |
1703 | p->w->pending = 0; |
1803 | p->w->pending = 0; |
1704 | EV_CB_INVOKE (p->w, p->events); |
1804 | EV_CB_INVOKE (p->w, p->events); |
1705 | EV_FREQUENT_CHECK; |
1805 | EV_FREQUENT_CHECK; |
1706 | } |
|
|
1707 | } |
1806 | } |
1708 | } |
1807 | } |
1709 | |
1808 | |
1710 | #if EV_IDLE_ENABLE |
1809 | #if EV_IDLE_ENABLE |
1711 | void inline_size |
1810 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1811 | /* only when higher priorities are idle" logic */ |
|
|
1812 | inline_size void |
1712 | idle_reify (EV_P) |
1813 | idle_reify (EV_P) |
1713 | { |
1814 | { |
1714 | if (expect_false (idleall)) |
1815 | if (expect_false (idleall)) |
1715 | { |
1816 | { |
1716 | int pri; |
1817 | int pri; |
… | |
… | |
1728 | } |
1829 | } |
1729 | } |
1830 | } |
1730 | } |
1831 | } |
1731 | #endif |
1832 | #endif |
1732 | |
1833 | |
1733 | void inline_size |
1834 | /* make timers pending */ |
|
|
1835 | inline_size void |
1734 | timers_reify (EV_P) |
1836 | timers_reify (EV_P) |
1735 | { |
1837 | { |
1736 | EV_FREQUENT_CHECK; |
1838 | EV_FREQUENT_CHECK; |
1737 | |
1839 | |
1738 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1840 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1739 | { |
1841 | { |
1740 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1842 | do |
1741 | |
|
|
1742 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1743 | |
|
|
1744 | /* first reschedule or stop timer */ |
|
|
1745 | if (w->repeat) |
|
|
1746 | { |
1843 | { |
|
|
1844 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1845 | |
|
|
1846 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1847 | |
|
|
1848 | /* first reschedule or stop timer */ |
|
|
1849 | if (w->repeat) |
|
|
1850 | { |
1747 | ev_at (w) += w->repeat; |
1851 | ev_at (w) += w->repeat; |
1748 | if (ev_at (w) < mn_now) |
1852 | if (ev_at (w) < mn_now) |
1749 | ev_at (w) = mn_now; |
1853 | ev_at (w) = mn_now; |
1750 | |
1854 | |
1751 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1855 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1752 | |
1856 | |
1753 | ANHE_at_cache (timers [HEAP0]); |
1857 | ANHE_at_cache (timers [HEAP0]); |
1754 | downheap (timers, timercnt, HEAP0); |
1858 | downheap (timers, timercnt, HEAP0); |
|
|
1859 | } |
|
|
1860 | else |
|
|
1861 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1862 | |
|
|
1863 | EV_FREQUENT_CHECK; |
|
|
1864 | feed_reverse (EV_A_ (W)w); |
1755 | } |
1865 | } |
1756 | else |
1866 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1757 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1758 | |
1867 | |
1759 | EV_FREQUENT_CHECK; |
|
|
1760 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1868 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1761 | } |
1869 | } |
1762 | } |
1870 | } |
1763 | |
1871 | |
1764 | #if EV_PERIODIC_ENABLE |
1872 | #if EV_PERIODIC_ENABLE |
1765 | void inline_size |
1873 | /* make periodics pending */ |
|
|
1874 | inline_size void |
1766 | periodics_reify (EV_P) |
1875 | periodics_reify (EV_P) |
1767 | { |
1876 | { |
1768 | EV_FREQUENT_CHECK; |
1877 | EV_FREQUENT_CHECK; |
1769 | |
1878 | |
1770 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1879 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1771 | { |
1880 | { |
1772 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1881 | int feed_count = 0; |
1773 | |
1882 | |
1774 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1883 | do |
1775 | |
|
|
1776 | /* first reschedule or stop timer */ |
|
|
1777 | if (w->reschedule_cb) |
|
|
1778 | { |
1884 | { |
|
|
1885 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1886 | |
|
|
1887 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1888 | |
|
|
1889 | /* first reschedule or stop timer */ |
|
|
1890 | if (w->reschedule_cb) |
|
|
1891 | { |
1779 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1892 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1780 | |
1893 | |
1781 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1894 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1782 | |
1895 | |
1783 | ANHE_at_cache (periodics [HEAP0]); |
1896 | ANHE_at_cache (periodics [HEAP0]); |
1784 | downheap (periodics, periodiccnt, HEAP0); |
1897 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1898 | } |
|
|
1899 | else if (w->interval) |
|
|
1900 | { |
|
|
1901 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1902 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1903 | /* this might happen because of floating point inexactness */ |
|
|
1904 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1905 | { |
|
|
1906 | ev_at (w) += w->interval; |
|
|
1907 | |
|
|
1908 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1909 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1910 | /* has effectively asked to get triggered more often than possible */ |
|
|
1911 | if (ev_at (w) < ev_rt_now) |
|
|
1912 | ev_at (w) = ev_rt_now; |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1916 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1917 | } |
|
|
1918 | else |
|
|
1919 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1920 | |
|
|
1921 | EV_FREQUENT_CHECK; |
|
|
1922 | feed_reverse (EV_A_ (W)w); |
1785 | } |
1923 | } |
1786 | else if (w->interval) |
1924 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1787 | { |
|
|
1788 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1789 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1790 | /* this might happen because of floating point inexactness */ |
|
|
1791 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1792 | { |
|
|
1793 | ev_at (w) += w->interval; |
|
|
1794 | |
1925 | |
1795 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1796 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1797 | /* has effectively asked to get triggered more often than possible */ |
|
|
1798 | if (ev_at (w) < ev_rt_now) |
|
|
1799 | ev_at (w) = ev_rt_now; |
|
|
1800 | } |
|
|
1801 | |
|
|
1802 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1803 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1804 | } |
|
|
1805 | else |
|
|
1806 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1807 | |
|
|
1808 | EV_FREQUENT_CHECK; |
|
|
1809 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1926 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1810 | } |
1927 | } |
1811 | } |
1928 | } |
1812 | |
1929 | |
|
|
1930 | /* simply recalculate all periodics */ |
|
|
1931 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1813 | static void noinline |
1932 | static void noinline |
1814 | periodics_reschedule (EV_P) |
1933 | periodics_reschedule (EV_P) |
1815 | { |
1934 | { |
1816 | int i; |
1935 | int i; |
1817 | |
1936 | |
… | |
… | |
1830 | |
1949 | |
1831 | reheap (periodics, periodiccnt); |
1950 | reheap (periodics, periodiccnt); |
1832 | } |
1951 | } |
1833 | #endif |
1952 | #endif |
1834 | |
1953 | |
1835 | void inline_speed |
1954 | /* adjust all timers by a given offset */ |
|
|
1955 | static void noinline |
|
|
1956 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1957 | { |
|
|
1958 | int i; |
|
|
1959 | |
|
|
1960 | for (i = 0; i < timercnt; ++i) |
|
|
1961 | { |
|
|
1962 | ANHE *he = timers + i + HEAP0; |
|
|
1963 | ANHE_w (*he)->at += adjust; |
|
|
1964 | ANHE_at_cache (*he); |
|
|
1965 | } |
|
|
1966 | } |
|
|
1967 | |
|
|
1968 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1969 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1970 | inline_speed void |
1836 | time_update (EV_P_ ev_tstamp max_block) |
1971 | time_update (EV_P_ ev_tstamp max_block) |
1837 | { |
1972 | { |
1838 | int i; |
|
|
1839 | |
|
|
1840 | #if EV_USE_MONOTONIC |
1973 | #if EV_USE_MONOTONIC |
1841 | if (expect_true (have_monotonic)) |
1974 | if (expect_true (have_monotonic)) |
1842 | { |
1975 | { |
|
|
1976 | int i; |
1843 | ev_tstamp odiff = rtmn_diff; |
1977 | ev_tstamp odiff = rtmn_diff; |
1844 | |
1978 | |
1845 | mn_now = get_clock (); |
1979 | mn_now = get_clock (); |
1846 | |
1980 | |
1847 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1981 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1873 | ev_rt_now = ev_time (); |
2007 | ev_rt_now = ev_time (); |
1874 | mn_now = get_clock (); |
2008 | mn_now = get_clock (); |
1875 | now_floor = mn_now; |
2009 | now_floor = mn_now; |
1876 | } |
2010 | } |
1877 | |
2011 | |
|
|
2012 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2013 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1878 | # if EV_PERIODIC_ENABLE |
2014 | # if EV_PERIODIC_ENABLE |
1879 | periodics_reschedule (EV_A); |
2015 | periodics_reschedule (EV_A); |
1880 | # endif |
2016 | # endif |
1881 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1882 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1883 | } |
2017 | } |
1884 | else |
2018 | else |
1885 | #endif |
2019 | #endif |
1886 | { |
2020 | { |
1887 | ev_rt_now = ev_time (); |
2021 | ev_rt_now = ev_time (); |
1888 | |
2022 | |
1889 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2023 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1890 | { |
2024 | { |
|
|
2025 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2026 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1891 | #if EV_PERIODIC_ENABLE |
2027 | #if EV_PERIODIC_ENABLE |
1892 | periodics_reschedule (EV_A); |
2028 | periodics_reschedule (EV_A); |
1893 | #endif |
2029 | #endif |
1894 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1895 | for (i = 0; i < timercnt; ++i) |
|
|
1896 | { |
|
|
1897 | ANHE *he = timers + i + HEAP0; |
|
|
1898 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1899 | ANHE_at_cache (*he); |
|
|
1900 | } |
|
|
1901 | } |
2030 | } |
1902 | |
2031 | |
1903 | mn_now = ev_rt_now; |
2032 | mn_now = ev_rt_now; |
1904 | } |
2033 | } |
1905 | } |
2034 | } |
1906 | |
2035 | |
1907 | void |
2036 | void |
1908 | ev_ref (EV_P) |
|
|
1909 | { |
|
|
1910 | ++activecnt; |
|
|
1911 | } |
|
|
1912 | |
|
|
1913 | void |
|
|
1914 | ev_unref (EV_P) |
|
|
1915 | { |
|
|
1916 | --activecnt; |
|
|
1917 | } |
|
|
1918 | |
|
|
1919 | void |
|
|
1920 | ev_now_update (EV_P) |
|
|
1921 | { |
|
|
1922 | time_update (EV_A_ 1e100); |
|
|
1923 | } |
|
|
1924 | |
|
|
1925 | static int loop_done; |
|
|
1926 | |
|
|
1927 | void |
|
|
1928 | ev_loop (EV_P_ int flags) |
2037 | ev_loop (EV_P_ int flags) |
1929 | { |
2038 | { |
|
|
2039 | ++loop_depth; |
|
|
2040 | |
1930 | loop_done = EVUNLOOP_CANCEL; |
2041 | loop_done = EVUNLOOP_CANCEL; |
1931 | |
2042 | |
1932 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2043 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1933 | |
2044 | |
1934 | do |
2045 | do |
… | |
… | |
1961 | { |
2072 | { |
1962 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2073 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1963 | call_pending (EV_A); |
2074 | call_pending (EV_A); |
1964 | } |
2075 | } |
1965 | |
2076 | |
1966 | if (expect_false (!activecnt)) |
|
|
1967 | break; |
|
|
1968 | |
|
|
1969 | /* we might have forked, so reify kernel state if necessary */ |
2077 | /* we might have forked, so reify kernel state if necessary */ |
1970 | if (expect_false (postfork)) |
2078 | if (expect_false (postfork)) |
1971 | loop_fork (EV_A); |
2079 | loop_fork (EV_A); |
1972 | |
2080 | |
1973 | /* update fd-related kernel structures */ |
2081 | /* update fd-related kernel structures */ |
… | |
… | |
1978 | ev_tstamp waittime = 0.; |
2086 | ev_tstamp waittime = 0.; |
1979 | ev_tstamp sleeptime = 0.; |
2087 | ev_tstamp sleeptime = 0.; |
1980 | |
2088 | |
1981 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2089 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1982 | { |
2090 | { |
|
|
2091 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2092 | ev_tstamp prev_mn_now = mn_now; |
|
|
2093 | |
1983 | /* update time to cancel out callback processing overhead */ |
2094 | /* update time to cancel out callback processing overhead */ |
1984 | time_update (EV_A_ 1e100); |
2095 | time_update (EV_A_ 1e100); |
1985 | |
2096 | |
1986 | waittime = MAX_BLOCKTIME; |
2097 | waittime = MAX_BLOCKTIME; |
1987 | |
2098 | |
… | |
… | |
1997 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2108 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1998 | if (waittime > to) waittime = to; |
2109 | if (waittime > to) waittime = to; |
1999 | } |
2110 | } |
2000 | #endif |
2111 | #endif |
2001 | |
2112 | |
|
|
2113 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2002 | if (expect_false (waittime < timeout_blocktime)) |
2114 | if (expect_false (waittime < timeout_blocktime)) |
2003 | waittime = timeout_blocktime; |
2115 | waittime = timeout_blocktime; |
2004 | |
2116 | |
2005 | sleeptime = waittime - backend_fudge; |
2117 | /* extra check because io_blocktime is commonly 0 */ |
2006 | |
|
|
2007 | if (expect_true (sleeptime > io_blocktime)) |
2118 | if (expect_false (io_blocktime)) |
2008 | sleeptime = io_blocktime; |
|
|
2009 | |
|
|
2010 | if (sleeptime) |
|
|
2011 | { |
2119 | { |
|
|
2120 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2121 | |
|
|
2122 | if (sleeptime > waittime - backend_fudge) |
|
|
2123 | sleeptime = waittime - backend_fudge; |
|
|
2124 | |
|
|
2125 | if (expect_true (sleeptime > 0.)) |
|
|
2126 | { |
2012 | ev_sleep (sleeptime); |
2127 | ev_sleep (sleeptime); |
2013 | waittime -= sleeptime; |
2128 | waittime -= sleeptime; |
|
|
2129 | } |
2014 | } |
2130 | } |
2015 | } |
2131 | } |
2016 | |
2132 | |
2017 | ++loop_count; |
2133 | ++loop_count; |
2018 | backend_poll (EV_A_ waittime); |
2134 | backend_poll (EV_A_ waittime); |
… | |
… | |
2044 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2160 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2045 | )); |
2161 | )); |
2046 | |
2162 | |
2047 | if (loop_done == EVUNLOOP_ONE) |
2163 | if (loop_done == EVUNLOOP_ONE) |
2048 | loop_done = EVUNLOOP_CANCEL; |
2164 | loop_done = EVUNLOOP_CANCEL; |
|
|
2165 | |
|
|
2166 | --loop_depth; |
2049 | } |
2167 | } |
2050 | |
2168 | |
2051 | void |
2169 | void |
2052 | ev_unloop (EV_P_ int how) |
2170 | ev_unloop (EV_P_ int how) |
2053 | { |
2171 | { |
2054 | loop_done = how; |
2172 | loop_done = how; |
2055 | } |
2173 | } |
2056 | |
2174 | |
|
|
2175 | void |
|
|
2176 | ev_ref (EV_P) |
|
|
2177 | { |
|
|
2178 | ++activecnt; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | void |
|
|
2182 | ev_unref (EV_P) |
|
|
2183 | { |
|
|
2184 | --activecnt; |
|
|
2185 | } |
|
|
2186 | |
|
|
2187 | void |
|
|
2188 | ev_now_update (EV_P) |
|
|
2189 | { |
|
|
2190 | time_update (EV_A_ 1e100); |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | void |
|
|
2194 | ev_suspend (EV_P) |
|
|
2195 | { |
|
|
2196 | ev_now_update (EV_A); |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | void |
|
|
2200 | ev_resume (EV_P) |
|
|
2201 | { |
|
|
2202 | ev_tstamp mn_prev = mn_now; |
|
|
2203 | |
|
|
2204 | ev_now_update (EV_A); |
|
|
2205 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2206 | #if EV_PERIODIC_ENABLE |
|
|
2207 | /* TODO: really do this? */ |
|
|
2208 | periodics_reschedule (EV_A); |
|
|
2209 | #endif |
|
|
2210 | } |
|
|
2211 | |
2057 | /*****************************************************************************/ |
2212 | /*****************************************************************************/ |
|
|
2213 | /* singly-linked list management, used when the expected list length is short */ |
2058 | |
2214 | |
2059 | void inline_size |
2215 | inline_size void |
2060 | wlist_add (WL *head, WL elem) |
2216 | wlist_add (WL *head, WL elem) |
2061 | { |
2217 | { |
2062 | elem->next = *head; |
2218 | elem->next = *head; |
2063 | *head = elem; |
2219 | *head = elem; |
2064 | } |
2220 | } |
2065 | |
2221 | |
2066 | void inline_size |
2222 | inline_size void |
2067 | wlist_del (WL *head, WL elem) |
2223 | wlist_del (WL *head, WL elem) |
2068 | { |
2224 | { |
2069 | while (*head) |
2225 | while (*head) |
2070 | { |
2226 | { |
2071 | if (*head == elem) |
2227 | if (*head == elem) |
… | |
… | |
2076 | |
2232 | |
2077 | head = &(*head)->next; |
2233 | head = &(*head)->next; |
2078 | } |
2234 | } |
2079 | } |
2235 | } |
2080 | |
2236 | |
2081 | void inline_speed |
2237 | /* internal, faster, version of ev_clear_pending */ |
|
|
2238 | inline_speed void |
2082 | clear_pending (EV_P_ W w) |
2239 | clear_pending (EV_P_ W w) |
2083 | { |
2240 | { |
2084 | if (w->pending) |
2241 | if (w->pending) |
2085 | { |
2242 | { |
2086 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2243 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2087 | w->pending = 0; |
2244 | w->pending = 0; |
2088 | } |
2245 | } |
2089 | } |
2246 | } |
2090 | |
2247 | |
2091 | int |
2248 | int |
… | |
… | |
2095 | int pending = w_->pending; |
2252 | int pending = w_->pending; |
2096 | |
2253 | |
2097 | if (expect_true (pending)) |
2254 | if (expect_true (pending)) |
2098 | { |
2255 | { |
2099 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2256 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2257 | p->w = (W)&pending_w; |
2100 | w_->pending = 0; |
2258 | w_->pending = 0; |
2101 | p->w = 0; |
|
|
2102 | return p->events; |
2259 | return p->events; |
2103 | } |
2260 | } |
2104 | else |
2261 | else |
2105 | return 0; |
2262 | return 0; |
2106 | } |
2263 | } |
2107 | |
2264 | |
2108 | void inline_size |
2265 | inline_size void |
2109 | pri_adjust (EV_P_ W w) |
2266 | pri_adjust (EV_P_ W w) |
2110 | { |
2267 | { |
2111 | int pri = w->priority; |
2268 | int pri = ev_priority (w); |
2112 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2269 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2113 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2270 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2114 | w->priority = pri; |
2271 | ev_set_priority (w, pri); |
2115 | } |
2272 | } |
2116 | |
2273 | |
2117 | void inline_speed |
2274 | inline_speed void |
2118 | ev_start (EV_P_ W w, int active) |
2275 | ev_start (EV_P_ W w, int active) |
2119 | { |
2276 | { |
2120 | pri_adjust (EV_A_ w); |
2277 | pri_adjust (EV_A_ w); |
2121 | w->active = active; |
2278 | w->active = active; |
2122 | ev_ref (EV_A); |
2279 | ev_ref (EV_A); |
2123 | } |
2280 | } |
2124 | |
2281 | |
2125 | void inline_size |
2282 | inline_size void |
2126 | ev_stop (EV_P_ W w) |
2283 | ev_stop (EV_P_ W w) |
2127 | { |
2284 | { |
2128 | ev_unref (EV_A); |
2285 | ev_unref (EV_A); |
2129 | w->active = 0; |
2286 | w->active = 0; |
2130 | } |
2287 | } |
… | |
… | |
2137 | int fd = w->fd; |
2294 | int fd = w->fd; |
2138 | |
2295 | |
2139 | if (expect_false (ev_is_active (w))) |
2296 | if (expect_false (ev_is_active (w))) |
2140 | return; |
2297 | return; |
2141 | |
2298 | |
2142 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2299 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2300 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2143 | |
2301 | |
2144 | EV_FREQUENT_CHECK; |
2302 | EV_FREQUENT_CHECK; |
2145 | |
2303 | |
2146 | ev_start (EV_A_ (W)w, 1); |
2304 | ev_start (EV_A_ (W)w, 1); |
2147 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2305 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2148 | wlist_add (&anfds[fd].head, (WL)w); |
2306 | wlist_add (&anfds[fd].head, (WL)w); |
2149 | |
2307 | |
2150 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2308 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2151 | w->events &= ~EV_IOFDSET; |
2309 | w->events &= ~EV__IOFDSET; |
2152 | |
2310 | |
2153 | EV_FREQUENT_CHECK; |
2311 | EV_FREQUENT_CHECK; |
2154 | } |
2312 | } |
2155 | |
2313 | |
2156 | void noinline |
2314 | void noinline |
… | |
… | |
2158 | { |
2316 | { |
2159 | clear_pending (EV_A_ (W)w); |
2317 | clear_pending (EV_A_ (W)w); |
2160 | if (expect_false (!ev_is_active (w))) |
2318 | if (expect_false (!ev_is_active (w))) |
2161 | return; |
2319 | return; |
2162 | |
2320 | |
2163 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2321 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2164 | |
2322 | |
2165 | EV_FREQUENT_CHECK; |
2323 | EV_FREQUENT_CHECK; |
2166 | |
2324 | |
2167 | wlist_del (&anfds[w->fd].head, (WL)w); |
2325 | wlist_del (&anfds[w->fd].head, (WL)w); |
2168 | ev_stop (EV_A_ (W)w); |
2326 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2178 | if (expect_false (ev_is_active (w))) |
2336 | if (expect_false (ev_is_active (w))) |
2179 | return; |
2337 | return; |
2180 | |
2338 | |
2181 | ev_at (w) += mn_now; |
2339 | ev_at (w) += mn_now; |
2182 | |
2340 | |
2183 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2341 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2184 | |
2342 | |
2185 | EV_FREQUENT_CHECK; |
2343 | EV_FREQUENT_CHECK; |
2186 | |
2344 | |
2187 | ++timercnt; |
2345 | ++timercnt; |
2188 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2346 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2191 | ANHE_at_cache (timers [ev_active (w)]); |
2349 | ANHE_at_cache (timers [ev_active (w)]); |
2192 | upheap (timers, ev_active (w)); |
2350 | upheap (timers, ev_active (w)); |
2193 | |
2351 | |
2194 | EV_FREQUENT_CHECK; |
2352 | EV_FREQUENT_CHECK; |
2195 | |
2353 | |
2196 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2354 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2197 | } |
2355 | } |
2198 | |
2356 | |
2199 | void noinline |
2357 | void noinline |
2200 | ev_timer_stop (EV_P_ ev_timer *w) |
2358 | ev_timer_stop (EV_P_ ev_timer *w) |
2201 | { |
2359 | { |
… | |
… | |
2206 | EV_FREQUENT_CHECK; |
2364 | EV_FREQUENT_CHECK; |
2207 | |
2365 | |
2208 | { |
2366 | { |
2209 | int active = ev_active (w); |
2367 | int active = ev_active (w); |
2210 | |
2368 | |
2211 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2369 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2212 | |
2370 | |
2213 | --timercnt; |
2371 | --timercnt; |
2214 | |
2372 | |
2215 | if (expect_true (active < timercnt + HEAP0)) |
2373 | if (expect_true (active < timercnt + HEAP0)) |
2216 | { |
2374 | { |
… | |
… | |
2260 | |
2418 | |
2261 | if (w->reschedule_cb) |
2419 | if (w->reschedule_cb) |
2262 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2420 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2263 | else if (w->interval) |
2421 | else if (w->interval) |
2264 | { |
2422 | { |
2265 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2423 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2266 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2424 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2267 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2425 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2268 | } |
2426 | } |
2269 | else |
2427 | else |
2270 | ev_at (w) = w->offset; |
2428 | ev_at (w) = w->offset; |
… | |
… | |
2278 | ANHE_at_cache (periodics [ev_active (w)]); |
2436 | ANHE_at_cache (periodics [ev_active (w)]); |
2279 | upheap (periodics, ev_active (w)); |
2437 | upheap (periodics, ev_active (w)); |
2280 | |
2438 | |
2281 | EV_FREQUENT_CHECK; |
2439 | EV_FREQUENT_CHECK; |
2282 | |
2440 | |
2283 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2441 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2284 | } |
2442 | } |
2285 | |
2443 | |
2286 | void noinline |
2444 | void noinline |
2287 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2445 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2288 | { |
2446 | { |
… | |
… | |
2293 | EV_FREQUENT_CHECK; |
2451 | EV_FREQUENT_CHECK; |
2294 | |
2452 | |
2295 | { |
2453 | { |
2296 | int active = ev_active (w); |
2454 | int active = ev_active (w); |
2297 | |
2455 | |
2298 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2456 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2299 | |
2457 | |
2300 | --periodiccnt; |
2458 | --periodiccnt; |
2301 | |
2459 | |
2302 | if (expect_true (active < periodiccnt + HEAP0)) |
2460 | if (expect_true (active < periodiccnt + HEAP0)) |
2303 | { |
2461 | { |
… | |
… | |
2326 | |
2484 | |
2327 | void noinline |
2485 | void noinline |
2328 | ev_signal_start (EV_P_ ev_signal *w) |
2486 | ev_signal_start (EV_P_ ev_signal *w) |
2329 | { |
2487 | { |
2330 | #if EV_MULTIPLICITY |
2488 | #if EV_MULTIPLICITY |
2331 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2489 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2332 | #endif |
2490 | #endif |
2333 | if (expect_false (ev_is_active (w))) |
2491 | if (expect_false (ev_is_active (w))) |
2334 | return; |
2492 | return; |
2335 | |
2493 | |
2336 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2494 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2337 | |
2495 | |
2338 | evpipe_init (EV_A); |
2496 | evpipe_init (EV_A); |
2339 | |
2497 | |
2340 | EV_FREQUENT_CHECK; |
2498 | EV_FREQUENT_CHECK; |
2341 | |
2499 | |
… | |
… | |
2344 | sigset_t full, prev; |
2502 | sigset_t full, prev; |
2345 | sigfillset (&full); |
2503 | sigfillset (&full); |
2346 | sigprocmask (SIG_SETMASK, &full, &prev); |
2504 | sigprocmask (SIG_SETMASK, &full, &prev); |
2347 | #endif |
2505 | #endif |
2348 | |
2506 | |
2349 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2507 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2350 | |
2508 | |
2351 | #ifndef _WIN32 |
2509 | #ifndef _WIN32 |
2352 | sigprocmask (SIG_SETMASK, &prev, 0); |
2510 | sigprocmask (SIG_SETMASK, &prev, 0); |
2353 | #endif |
2511 | #endif |
2354 | } |
2512 | } |
… | |
… | |
2392 | |
2550 | |
2393 | void |
2551 | void |
2394 | ev_child_start (EV_P_ ev_child *w) |
2552 | ev_child_start (EV_P_ ev_child *w) |
2395 | { |
2553 | { |
2396 | #if EV_MULTIPLICITY |
2554 | #if EV_MULTIPLICITY |
2397 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2398 | #endif |
2556 | #endif |
2399 | if (expect_false (ev_is_active (w))) |
2557 | if (expect_false (ev_is_active (w))) |
2400 | return; |
2558 | return; |
2401 | |
2559 | |
2402 | EV_FREQUENT_CHECK; |
2560 | EV_FREQUENT_CHECK; |
… | |
… | |
2427 | # ifdef _WIN32 |
2585 | # ifdef _WIN32 |
2428 | # undef lstat |
2586 | # undef lstat |
2429 | # define lstat(a,b) _stati64 (a,b) |
2587 | # define lstat(a,b) _stati64 (a,b) |
2430 | # endif |
2588 | # endif |
2431 | |
2589 | |
2432 | #define DEF_STAT_INTERVAL 5.0074891 |
2590 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2591 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2433 | #define MIN_STAT_INTERVAL 0.1074891 |
2592 | #define MIN_STAT_INTERVAL 0.1074891 |
2434 | |
2593 | |
2435 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2594 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2436 | |
2595 | |
2437 | #if EV_USE_INOTIFY |
2596 | #if EV_USE_INOTIFY |
2438 | # define EV_INOTIFY_BUFSIZE 8192 |
2597 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2442 | { |
2601 | { |
2443 | 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); |
2602 | 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); |
2444 | |
2603 | |
2445 | if (w->wd < 0) |
2604 | if (w->wd < 0) |
2446 | { |
2605 | { |
|
|
2606 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2447 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2607 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2448 | |
2608 | |
2449 | /* monitor some parent directory for speedup hints */ |
2609 | /* monitor some parent directory for speedup hints */ |
2450 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2610 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2451 | /* but an efficiency issue only */ |
2611 | /* but an efficiency issue only */ |
2452 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2612 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2453 | { |
2613 | { |
2454 | char path [4096]; |
2614 | char path [4096]; |
2455 | strcpy (path, w->path); |
2615 | strcpy (path, w->path); |
… | |
… | |
2459 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2619 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2460 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2620 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2461 | |
2621 | |
2462 | char *pend = strrchr (path, '/'); |
2622 | char *pend = strrchr (path, '/'); |
2463 | |
2623 | |
2464 | if (!pend) |
2624 | if (!pend || pend == path) |
2465 | break; /* whoops, no '/', complain to your admin */ |
2625 | break; |
2466 | |
2626 | |
2467 | *pend = 0; |
2627 | *pend = 0; |
2468 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2628 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2469 | } |
2629 | } |
2470 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2630 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2471 | } |
2631 | } |
2472 | } |
2632 | } |
2473 | else |
|
|
2474 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2475 | |
2633 | |
2476 | if (w->wd >= 0) |
2634 | if (w->wd >= 0) |
|
|
2635 | { |
2477 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2636 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2637 | |
|
|
2638 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2639 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2640 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2641 | struct statfs sfs; |
|
|
2642 | |
|
|
2643 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2644 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2645 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2646 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2647 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2648 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2649 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2650 | return; |
|
|
2651 | |
|
|
2652 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2653 | ev_timer_again (EV_A_ &w->timer); |
|
|
2654 | } |
2478 | } |
2655 | } |
2479 | |
2656 | |
2480 | static void noinline |
2657 | static void noinline |
2481 | infy_del (EV_P_ ev_stat *w) |
2658 | infy_del (EV_P_ ev_stat *w) |
2482 | { |
2659 | { |
… | |
… | |
2496 | |
2673 | |
2497 | static void noinline |
2674 | static void noinline |
2498 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2675 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2499 | { |
2676 | { |
2500 | if (slot < 0) |
2677 | if (slot < 0) |
2501 | /* overflow, need to check for all hahs slots */ |
2678 | /* overflow, need to check for all hash slots */ |
2502 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2679 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2503 | infy_wd (EV_A_ slot, wd, ev); |
2680 | infy_wd (EV_A_ slot, wd, ev); |
2504 | else |
2681 | else |
2505 | { |
2682 | { |
2506 | WL w_; |
2683 | WL w_; |
… | |
… | |
2512 | |
2689 | |
2513 | if (w->wd == wd || wd == -1) |
2690 | if (w->wd == wd || wd == -1) |
2514 | { |
2691 | { |
2515 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2692 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2516 | { |
2693 | { |
|
|
2694 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2517 | w->wd = -1; |
2695 | w->wd = -1; |
2518 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2696 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2519 | } |
2697 | } |
2520 | |
2698 | |
2521 | stat_timer_cb (EV_A_ &w->timer, 0); |
2699 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2534 | |
2712 | |
2535 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2713 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2536 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2714 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2537 | } |
2715 | } |
2538 | |
2716 | |
2539 | void inline_size |
2717 | inline_size void |
|
|
2718 | check_2625 (EV_P) |
|
|
2719 | { |
|
|
2720 | /* kernels < 2.6.25 are borked |
|
|
2721 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2722 | */ |
|
|
2723 | struct utsname buf; |
|
|
2724 | int major, minor, micro; |
|
|
2725 | |
|
|
2726 | if (uname (&buf)) |
|
|
2727 | return; |
|
|
2728 | |
|
|
2729 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | if (major < 2 |
|
|
2733 | || (major == 2 && minor < 6) |
|
|
2734 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2735 | return; |
|
|
2736 | |
|
|
2737 | fs_2625 = 1; |
|
|
2738 | } |
|
|
2739 | |
|
|
2740 | inline_size void |
2540 | infy_init (EV_P) |
2741 | infy_init (EV_P) |
2541 | { |
2742 | { |
2542 | if (fs_fd != -2) |
2743 | if (fs_fd != -2) |
2543 | return; |
2744 | return; |
|
|
2745 | |
|
|
2746 | fs_fd = -1; |
|
|
2747 | |
|
|
2748 | check_2625 (EV_A); |
2544 | |
2749 | |
2545 | fs_fd = inotify_init (); |
2750 | fs_fd = inotify_init (); |
2546 | |
2751 | |
2547 | if (fs_fd >= 0) |
2752 | if (fs_fd >= 0) |
2548 | { |
2753 | { |
… | |
… | |
2550 | ev_set_priority (&fs_w, EV_MAXPRI); |
2755 | ev_set_priority (&fs_w, EV_MAXPRI); |
2551 | ev_io_start (EV_A_ &fs_w); |
2756 | ev_io_start (EV_A_ &fs_w); |
2552 | } |
2757 | } |
2553 | } |
2758 | } |
2554 | |
2759 | |
2555 | void inline_size |
2760 | inline_size void |
2556 | infy_fork (EV_P) |
2761 | infy_fork (EV_P) |
2557 | { |
2762 | { |
2558 | int slot; |
2763 | int slot; |
2559 | |
2764 | |
2560 | if (fs_fd < 0) |
2765 | if (fs_fd < 0) |
… | |
… | |
2576 | w->wd = -1; |
2781 | w->wd = -1; |
2577 | |
2782 | |
2578 | if (fs_fd >= 0) |
2783 | if (fs_fd >= 0) |
2579 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2784 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2580 | else |
2785 | else |
2581 | ev_timer_start (EV_A_ &w->timer); |
2786 | ev_timer_again (EV_A_ &w->timer); |
2582 | } |
2787 | } |
2583 | |
|
|
2584 | } |
2788 | } |
2585 | } |
2789 | } |
2586 | |
2790 | |
2587 | #endif |
2791 | #endif |
2588 | |
2792 | |
… | |
… | |
2624 | || w->prev.st_atime != w->attr.st_atime |
2828 | || w->prev.st_atime != w->attr.st_atime |
2625 | || w->prev.st_mtime != w->attr.st_mtime |
2829 | || w->prev.st_mtime != w->attr.st_mtime |
2626 | || w->prev.st_ctime != w->attr.st_ctime |
2830 | || w->prev.st_ctime != w->attr.st_ctime |
2627 | ) { |
2831 | ) { |
2628 | #if EV_USE_INOTIFY |
2832 | #if EV_USE_INOTIFY |
|
|
2833 | if (fs_fd >= 0) |
|
|
2834 | { |
2629 | infy_del (EV_A_ w); |
2835 | infy_del (EV_A_ w); |
2630 | infy_add (EV_A_ w); |
2836 | infy_add (EV_A_ w); |
2631 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2837 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2838 | } |
2632 | #endif |
2839 | #endif |
2633 | |
2840 | |
2634 | ev_feed_event (EV_A_ w, EV_STAT); |
2841 | ev_feed_event (EV_A_ w, EV_STAT); |
2635 | } |
2842 | } |
2636 | } |
2843 | } |
… | |
… | |
2639 | ev_stat_start (EV_P_ ev_stat *w) |
2846 | ev_stat_start (EV_P_ ev_stat *w) |
2640 | { |
2847 | { |
2641 | if (expect_false (ev_is_active (w))) |
2848 | if (expect_false (ev_is_active (w))) |
2642 | return; |
2849 | return; |
2643 | |
2850 | |
2644 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2645 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2646 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2647 | |
|
|
2648 | ev_stat_stat (EV_A_ w); |
2851 | ev_stat_stat (EV_A_ w); |
2649 | |
2852 | |
|
|
2853 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2650 | if (w->interval < MIN_STAT_INTERVAL) |
2854 | w->interval = MIN_STAT_INTERVAL; |
2651 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2652 | |
2855 | |
2653 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2856 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2654 | ev_set_priority (&w->timer, ev_priority (w)); |
2857 | ev_set_priority (&w->timer, ev_priority (w)); |
2655 | |
2858 | |
2656 | #if EV_USE_INOTIFY |
2859 | #if EV_USE_INOTIFY |
2657 | infy_init (EV_A); |
2860 | infy_init (EV_A); |
2658 | |
2861 | |
2659 | if (fs_fd >= 0) |
2862 | if (fs_fd >= 0) |
2660 | infy_add (EV_A_ w); |
2863 | infy_add (EV_A_ w); |
2661 | else |
2864 | else |
2662 | #endif |
2865 | #endif |
2663 | ev_timer_start (EV_A_ &w->timer); |
2866 | ev_timer_again (EV_A_ &w->timer); |
2664 | |
2867 | |
2665 | ev_start (EV_A_ (W)w, 1); |
2868 | ev_start (EV_A_ (W)w, 1); |
2666 | |
2869 | |
2667 | EV_FREQUENT_CHECK; |
2870 | EV_FREQUENT_CHECK; |
2668 | } |
2871 | } |
… | |
… | |
2843 | static void |
3046 | static void |
2844 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3047 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2845 | { |
3048 | { |
2846 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3049 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2847 | |
3050 | |
|
|
3051 | ev_embed_stop (EV_A_ w); |
|
|
3052 | |
2848 | { |
3053 | { |
2849 | struct ev_loop *loop = w->other; |
3054 | struct ev_loop *loop = w->other; |
2850 | |
3055 | |
2851 | ev_loop_fork (EV_A); |
3056 | ev_loop_fork (EV_A); |
|
|
3057 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2852 | } |
3058 | } |
|
|
3059 | |
|
|
3060 | ev_embed_start (EV_A_ w); |
2853 | } |
3061 | } |
2854 | |
3062 | |
2855 | #if 0 |
3063 | #if 0 |
2856 | static void |
3064 | static void |
2857 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3065 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2866 | if (expect_false (ev_is_active (w))) |
3074 | if (expect_false (ev_is_active (w))) |
2867 | return; |
3075 | return; |
2868 | |
3076 | |
2869 | { |
3077 | { |
2870 | struct ev_loop *loop = w->other; |
3078 | struct ev_loop *loop = w->other; |
2871 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3079 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2872 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3080 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2873 | } |
3081 | } |
2874 | |
3082 | |
2875 | EV_FREQUENT_CHECK; |
3083 | EV_FREQUENT_CHECK; |
2876 | |
3084 | |
… | |
… | |
3059 | ev_timer_set (&once->to, timeout, 0.); |
3267 | ev_timer_set (&once->to, timeout, 0.); |
3060 | ev_timer_start (EV_A_ &once->to); |
3268 | ev_timer_start (EV_A_ &once->to); |
3061 | } |
3269 | } |
3062 | } |
3270 | } |
3063 | |
3271 | |
|
|
3272 | /*****************************************************************************/ |
|
|
3273 | |
|
|
3274 | #if EV_WALK_ENABLE |
|
|
3275 | void |
|
|
3276 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3277 | { |
|
|
3278 | int i, j; |
|
|
3279 | ev_watcher_list *wl, *wn; |
|
|
3280 | |
|
|
3281 | if (types & (EV_IO | EV_EMBED)) |
|
|
3282 | for (i = 0; i < anfdmax; ++i) |
|
|
3283 | for (wl = anfds [i].head; wl; ) |
|
|
3284 | { |
|
|
3285 | wn = wl->next; |
|
|
3286 | |
|
|
3287 | #if EV_EMBED_ENABLE |
|
|
3288 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3289 | { |
|
|
3290 | if (types & EV_EMBED) |
|
|
3291 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3292 | } |
|
|
3293 | else |
|
|
3294 | #endif |
|
|
3295 | #if EV_USE_INOTIFY |
|
|
3296 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3297 | ; |
|
|
3298 | else |
|
|
3299 | #endif |
|
|
3300 | if ((ev_io *)wl != &pipe_w) |
|
|
3301 | if (types & EV_IO) |
|
|
3302 | cb (EV_A_ EV_IO, wl); |
|
|
3303 | |
|
|
3304 | wl = wn; |
|
|
3305 | } |
|
|
3306 | |
|
|
3307 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3308 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3309 | #if EV_STAT_ENABLE |
|
|
3310 | /*TODO: timer is not always active*/ |
|
|
3311 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3312 | { |
|
|
3313 | if (types & EV_STAT) |
|
|
3314 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3315 | } |
|
|
3316 | else |
|
|
3317 | #endif |
|
|
3318 | if (types & EV_TIMER) |
|
|
3319 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3320 | |
|
|
3321 | #if EV_PERIODIC_ENABLE |
|
|
3322 | if (types & EV_PERIODIC) |
|
|
3323 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3324 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3325 | #endif |
|
|
3326 | |
|
|
3327 | #if EV_IDLE_ENABLE |
|
|
3328 | if (types & EV_IDLE) |
|
|
3329 | for (j = NUMPRI; i--; ) |
|
|
3330 | for (i = idlecnt [j]; i--; ) |
|
|
3331 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3332 | #endif |
|
|
3333 | |
|
|
3334 | #if EV_FORK_ENABLE |
|
|
3335 | if (types & EV_FORK) |
|
|
3336 | for (i = forkcnt; i--; ) |
|
|
3337 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3338 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3339 | #endif |
|
|
3340 | |
|
|
3341 | #if EV_ASYNC_ENABLE |
|
|
3342 | if (types & EV_ASYNC) |
|
|
3343 | for (i = asynccnt; i--; ) |
|
|
3344 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3345 | #endif |
|
|
3346 | |
|
|
3347 | if (types & EV_PREPARE) |
|
|
3348 | for (i = preparecnt; i--; ) |
|
|
3349 | #if EV_EMBED_ENABLE |
|
|
3350 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3351 | #endif |
|
|
3352 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3353 | |
|
|
3354 | if (types & EV_CHECK) |
|
|
3355 | for (i = checkcnt; i--; ) |
|
|
3356 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3357 | |
|
|
3358 | if (types & EV_SIGNAL) |
|
|
3359 | for (i = 0; i < signalmax; ++i) |
|
|
3360 | for (wl = signals [i].head; wl; ) |
|
|
3361 | { |
|
|
3362 | wn = wl->next; |
|
|
3363 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3364 | wl = wn; |
|
|
3365 | } |
|
|
3366 | |
|
|
3367 | if (types & EV_CHILD) |
|
|
3368 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3369 | for (wl = childs [i]; wl; ) |
|
|
3370 | { |
|
|
3371 | wn = wl->next; |
|
|
3372 | cb (EV_A_ EV_CHILD, wl); |
|
|
3373 | wl = wn; |
|
|
3374 | } |
|
|
3375 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3376 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3377 | } |
|
|
3378 | #endif |
|
|
3379 | |
3064 | #if EV_MULTIPLICITY |
3380 | #if EV_MULTIPLICITY |
3065 | #include "ev_wrap.h" |
3381 | #include "ev_wrap.h" |
3066 | #endif |
3382 | #endif |
3067 | |
3383 | |
3068 | #ifdef __cplusplus |
3384 | #ifdef __cplusplus |