1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
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52 | # if HAVE_CLOCK_SYSCALL |
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53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
164 | # endif |
178 | # endif |
165 | #endif |
179 | #endif |
166 | |
180 | |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
168 | |
182 | |
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183 | #ifndef EV_USE_CLOCK_SYSCALL |
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184 | # if __linux && __GLIBC__ >= 2 |
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185 | # define EV_USE_CLOCK_SYSCALL 1 |
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186 | # else |
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187 | # define EV_USE_CLOCK_SYSCALL 0 |
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188 | # endif |
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189 | #endif |
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190 | |
169 | #ifndef EV_USE_MONOTONIC |
191 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
193 | # define EV_USE_MONOTONIC 1 |
172 | # else |
194 | # else |
173 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
196 | # endif |
175 | #endif |
197 | #endif |
176 | |
198 | |
177 | #ifndef EV_USE_REALTIME |
199 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
201 | #endif |
180 | |
202 | |
181 | #ifndef EV_USE_NANOSLEEP |
203 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
204 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
205 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
262 | |
284 | |
263 | #ifndef EV_HEAP_CACHE_AT |
285 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
265 | #endif |
287 | #endif |
266 | |
288 | |
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289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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290 | /* which makes programs even slower. might work on other unices, too. */ |
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291 | #if EV_USE_CLOCK_SYSCALL |
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292 | # include <syscall.h> |
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293 | # ifdef SYS_clock_gettime |
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294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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295 | # undef EV_USE_MONOTONIC |
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296 | # define EV_USE_MONOTONIC 1 |
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297 | # else |
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298 | # undef EV_USE_CLOCK_SYSCALL |
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299 | # define EV_USE_CLOCK_SYSCALL 0 |
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300 | # endif |
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301 | #endif |
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302 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
268 | |
304 | |
269 | #ifndef CLOCK_MONOTONIC |
305 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
307 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
287 | # endif |
323 | # endif |
288 | #endif |
324 | #endif |
289 | |
325 | |
290 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
291 | # include <sys/utsname.h> |
327 | # include <sys/utsname.h> |
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328 | # include <sys/statfs.h> |
292 | # include <sys/inotify.h> |
329 | # include <sys/inotify.h> |
293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
294 | # ifndef IN_DONT_FOLLOW |
331 | # ifndef IN_DONT_FOLLOW |
295 | # undef EV_USE_INOTIFY |
332 | # undef EV_USE_INOTIFY |
296 | # define EV_USE_INOTIFY 0 |
333 | # define EV_USE_INOTIFY 0 |
… | |
… | |
354 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
355 | #else |
392 | #else |
356 | # define inline_speed static inline |
393 | # define inline_speed static inline |
357 | #endif |
394 | #endif |
358 | |
395 | |
359 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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397 | |
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398 | #if EV_MINPRI == EV_MAXPRI |
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399 | # define ABSPRI(w) (((W)w), 0) |
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400 | #else |
360 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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|
402 | #endif |
361 | |
403 | |
362 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
363 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
364 | |
406 | |
365 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
… | |
… | |
367 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
368 | |
410 | |
369 | #define ev_active(w) ((W)(w))->active |
411 | #define ev_active(w) ((W)(w))->active |
370 | #define ev_at(w) ((WT)(w))->at |
412 | #define ev_at(w) ((WT)(w))->at |
371 | |
413 | |
372 | #if EV_USE_MONOTONIC |
414 | #if EV_USE_REALTIME |
373 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
374 | /* giving it a reasonably high chance of working on typical architetcures */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
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417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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418 | #endif |
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419 | |
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420 | #if EV_USE_MONOTONIC |
375 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
376 | #endif |
422 | #endif |
377 | |
423 | |
378 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
379 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
… | |
… | |
444 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
445 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
446 | |
492 | |
447 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
448 | |
494 | |
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495 | /* set in reify when reification needed */ |
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496 | #define EV_ANFD_REIFY 1 |
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497 | |
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498 | /* file descriptor info structure */ |
449 | typedef struct |
499 | typedef struct |
450 | { |
500 | { |
451 | WL head; |
501 | WL head; |
452 | unsigned char events; |
502 | unsigned char events; /* the events watched for */ |
453 | unsigned char reify; |
503 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
454 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
504 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
455 | unsigned char unused; |
505 | unsigned char unused; |
456 | #if EV_USE_EPOLL |
506 | #if EV_USE_EPOLL |
457 | unsigned int egen; /* generation counter to counter epoll bugs */ |
507 | unsigned int egen; /* generation counter to counter epoll bugs */ |
458 | #endif |
508 | #endif |
459 | #if EV_SELECT_IS_WINSOCKET |
509 | #if EV_SELECT_IS_WINSOCKET |
460 | SOCKET handle; |
510 | SOCKET handle; |
461 | #endif |
511 | #endif |
462 | } ANFD; |
512 | } ANFD; |
463 | |
513 | |
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|
514 | /* stores the pending event set for a given watcher */ |
464 | typedef struct |
515 | typedef struct |
465 | { |
516 | { |
466 | W w; |
517 | W w; |
467 | int events; |
518 | int events; /* the pending event set for the given watcher */ |
468 | } ANPENDING; |
519 | } ANPENDING; |
469 | |
520 | |
470 | #if EV_USE_INOTIFY |
521 | #if EV_USE_INOTIFY |
471 | /* hash table entry per inotify-id */ |
522 | /* hash table entry per inotify-id */ |
472 | typedef struct |
523 | typedef struct |
… | |
… | |
475 | } ANFS; |
526 | } ANFS; |
476 | #endif |
527 | #endif |
477 | |
528 | |
478 | /* Heap Entry */ |
529 | /* Heap Entry */ |
479 | #if EV_HEAP_CACHE_AT |
530 | #if EV_HEAP_CACHE_AT |
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531 | /* a heap element */ |
480 | typedef struct { |
532 | typedef struct { |
481 | ev_tstamp at; |
533 | ev_tstamp at; |
482 | WT w; |
534 | WT w; |
483 | } ANHE; |
535 | } ANHE; |
484 | |
536 | |
485 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
537 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
486 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
538 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
487 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
539 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
488 | #else |
540 | #else |
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541 | /* a heap element */ |
489 | typedef WT ANHE; |
542 | typedef WT ANHE; |
490 | |
543 | |
491 | #define ANHE_w(he) (he) |
544 | #define ANHE_w(he) (he) |
492 | #define ANHE_at(he) (he)->at |
545 | #define ANHE_at(he) (he)->at |
493 | #define ANHE_at_cache(he) |
546 | #define ANHE_at_cache(he) |
… | |
… | |
517 | |
570 | |
518 | static int ev_default_loop_ptr; |
571 | static int ev_default_loop_ptr; |
519 | |
572 | |
520 | #endif |
573 | #endif |
521 | |
574 | |
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575 | #if EV_MINIMAL < 2 |
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576 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
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577 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
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578 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
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579 | #else |
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580 | # define EV_RELEASE_CB (void)0 |
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581 | # define EV_ACQUIRE_CB (void)0 |
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582 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
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583 | #endif |
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584 | |
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585 | #define EVUNLOOP_RECURSE 0x80 |
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586 | |
522 | /*****************************************************************************/ |
587 | /*****************************************************************************/ |
523 | |
588 | |
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589 | #ifndef EV_HAVE_EV_TIME |
524 | ev_tstamp |
590 | ev_tstamp |
525 | ev_time (void) |
591 | ev_time (void) |
526 | { |
592 | { |
527 | #if EV_USE_REALTIME |
593 | #if EV_USE_REALTIME |
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594 | if (expect_true (have_realtime)) |
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595 | { |
528 | struct timespec ts; |
596 | struct timespec ts; |
529 | clock_gettime (CLOCK_REALTIME, &ts); |
597 | clock_gettime (CLOCK_REALTIME, &ts); |
530 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
598 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
531 | #else |
599 | } |
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|
600 | #endif |
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601 | |
532 | struct timeval tv; |
602 | struct timeval tv; |
533 | gettimeofday (&tv, 0); |
603 | gettimeofday (&tv, 0); |
534 | return tv.tv_sec + tv.tv_usec * 1e-6; |
604 | return tv.tv_sec + tv.tv_usec * 1e-6; |
535 | #endif |
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536 | } |
605 | } |
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606 | #endif |
537 | |
607 | |
538 | ev_tstamp inline_size |
608 | inline_size ev_tstamp |
539 | get_clock (void) |
609 | get_clock (void) |
540 | { |
610 | { |
541 | #if EV_USE_MONOTONIC |
611 | #if EV_USE_MONOTONIC |
542 | if (expect_true (have_monotonic)) |
612 | if (expect_true (have_monotonic)) |
543 | { |
613 | { |
… | |
… | |
577 | |
647 | |
578 | tv.tv_sec = (time_t)delay; |
648 | tv.tv_sec = (time_t)delay; |
579 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
649 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
580 | |
650 | |
581 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
651 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
582 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
652 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
583 | /* by older ones */ |
653 | /* by older ones */ |
584 | select (0, 0, 0, 0, &tv); |
654 | select (0, 0, 0, 0, &tv); |
585 | #endif |
655 | #endif |
586 | } |
656 | } |
587 | } |
657 | } |
588 | |
658 | |
589 | /*****************************************************************************/ |
659 | /*****************************************************************************/ |
590 | |
660 | |
591 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
661 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
592 | |
662 | |
593 | int inline_size |
663 | /* find a suitable new size for the given array, */ |
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664 | /* hopefully by rounding to a ncie-to-malloc size */ |
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665 | inline_size int |
594 | array_nextsize (int elem, int cur, int cnt) |
666 | array_nextsize (int elem, int cur, int cnt) |
595 | { |
667 | { |
596 | int ncur = cur + 1; |
668 | int ncur = cur + 1; |
597 | |
669 | |
598 | do |
670 | do |
… | |
… | |
639 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
711 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
640 | } |
712 | } |
641 | #endif |
713 | #endif |
642 | |
714 | |
643 | #define array_free(stem, idx) \ |
715 | #define array_free(stem, idx) \ |
644 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
716 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
645 | |
717 | |
646 | /*****************************************************************************/ |
718 | /*****************************************************************************/ |
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719 | |
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720 | /* dummy callback for pending events */ |
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721 | static void noinline |
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722 | pendingcb (EV_P_ ev_prepare *w, int revents) |
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723 | { |
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724 | } |
647 | |
725 | |
648 | void noinline |
726 | void noinline |
649 | ev_feed_event (EV_P_ void *w, int revents) |
727 | ev_feed_event (EV_P_ void *w, int revents) |
650 | { |
728 | { |
651 | W w_ = (W)w; |
729 | W w_ = (W)w; |
… | |
… | |
660 | pendings [pri][w_->pending - 1].w = w_; |
738 | pendings [pri][w_->pending - 1].w = w_; |
661 | pendings [pri][w_->pending - 1].events = revents; |
739 | pendings [pri][w_->pending - 1].events = revents; |
662 | } |
740 | } |
663 | } |
741 | } |
664 | |
742 | |
665 | void inline_speed |
743 | inline_speed void |
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744 | feed_reverse (EV_P_ W w) |
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745 | { |
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746 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
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747 | rfeeds [rfeedcnt++] = w; |
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748 | } |
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749 | |
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750 | inline_size void |
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751 | feed_reverse_done (EV_P_ int revents) |
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752 | { |
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753 | do |
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754 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
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755 | while (rfeedcnt); |
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756 | } |
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757 | |
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758 | inline_speed void |
666 | queue_events (EV_P_ W *events, int eventcnt, int type) |
759 | queue_events (EV_P_ W *events, int eventcnt, int type) |
667 | { |
760 | { |
668 | int i; |
761 | int i; |
669 | |
762 | |
670 | for (i = 0; i < eventcnt; ++i) |
763 | for (i = 0; i < eventcnt; ++i) |
671 | ev_feed_event (EV_A_ events [i], type); |
764 | ev_feed_event (EV_A_ events [i], type); |
672 | } |
765 | } |
673 | |
766 | |
674 | /*****************************************************************************/ |
767 | /*****************************************************************************/ |
675 | |
768 | |
676 | void inline_speed |
769 | inline_speed void |
677 | fd_event (EV_P_ int fd, int revents) |
770 | fd_event_nc (EV_P_ int fd, int revents) |
678 | { |
771 | { |
679 | ANFD *anfd = anfds + fd; |
772 | ANFD *anfd = anfds + fd; |
680 | ev_io *w; |
773 | ev_io *w; |
681 | |
774 | |
682 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
775 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
686 | if (ev) |
779 | if (ev) |
687 | ev_feed_event (EV_A_ (W)w, ev); |
780 | ev_feed_event (EV_A_ (W)w, ev); |
688 | } |
781 | } |
689 | } |
782 | } |
690 | |
783 | |
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784 | /* do not submit kernel events for fds that have reify set */ |
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785 | /* because that means they changed while we were polling for new events */ |
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786 | inline_speed void |
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787 | fd_event (EV_P_ int fd, int revents) |
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788 | { |
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789 | ANFD *anfd = anfds + fd; |
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790 | |
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791 | if (expect_true (!anfd->reify)) |
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792 | fd_event_nc (EV_A_ fd, revents); |
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793 | } |
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794 | |
691 | void |
795 | void |
692 | ev_feed_fd_event (EV_P_ int fd, int revents) |
796 | ev_feed_fd_event (EV_P_ int fd, int revents) |
693 | { |
797 | { |
694 | if (fd >= 0 && fd < anfdmax) |
798 | if (fd >= 0 && fd < anfdmax) |
695 | fd_event (EV_A_ fd, revents); |
799 | fd_event_nc (EV_A_ fd, revents); |
696 | } |
800 | } |
697 | |
801 | |
698 | void inline_size |
802 | /* make sure the external fd watch events are in-sync */ |
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803 | /* with the kernel/libev internal state */ |
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804 | inline_size void |
699 | fd_reify (EV_P) |
805 | fd_reify (EV_P) |
700 | { |
806 | { |
701 | int i; |
807 | int i; |
702 | |
808 | |
703 | for (i = 0; i < fdchangecnt; ++i) |
809 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
718 | #ifdef EV_FD_TO_WIN32_HANDLE |
824 | #ifdef EV_FD_TO_WIN32_HANDLE |
719 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
825 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
720 | #else |
826 | #else |
721 | anfd->handle = _get_osfhandle (fd); |
827 | anfd->handle = _get_osfhandle (fd); |
722 | #endif |
828 | #endif |
723 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
829 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
724 | } |
830 | } |
725 | #endif |
831 | #endif |
726 | |
832 | |
727 | { |
833 | { |
728 | unsigned char o_events = anfd->events; |
834 | unsigned char o_events = anfd->events; |
729 | unsigned char o_reify = anfd->reify; |
835 | unsigned char o_reify = anfd->reify; |
730 | |
836 | |
731 | anfd->reify = 0; |
837 | anfd->reify = 0; |
732 | anfd->events = events; |
838 | anfd->events = events; |
733 | |
839 | |
734 | if (o_events != events || o_reify & EV_IOFDSET) |
840 | if (o_events != events || o_reify & EV__IOFDSET) |
735 | backend_modify (EV_A_ fd, o_events, events); |
841 | backend_modify (EV_A_ fd, o_events, events); |
736 | } |
842 | } |
737 | } |
843 | } |
738 | |
844 | |
739 | fdchangecnt = 0; |
845 | fdchangecnt = 0; |
740 | } |
846 | } |
741 | |
847 | |
742 | void inline_size |
848 | /* something about the given fd changed */ |
|
|
849 | inline_size void |
743 | fd_change (EV_P_ int fd, int flags) |
850 | fd_change (EV_P_ int fd, int flags) |
744 | { |
851 | { |
745 | unsigned char reify = anfds [fd].reify; |
852 | unsigned char reify = anfds [fd].reify; |
746 | anfds [fd].reify |= flags; |
853 | anfds [fd].reify |= flags; |
747 | |
854 | |
… | |
… | |
751 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
858 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
752 | fdchanges [fdchangecnt - 1] = fd; |
859 | fdchanges [fdchangecnt - 1] = fd; |
753 | } |
860 | } |
754 | } |
861 | } |
755 | |
862 | |
756 | void inline_speed |
863 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
864 | inline_speed void |
757 | fd_kill (EV_P_ int fd) |
865 | fd_kill (EV_P_ int fd) |
758 | { |
866 | { |
759 | ev_io *w; |
867 | ev_io *w; |
760 | |
868 | |
761 | while ((w = (ev_io *)anfds [fd].head)) |
869 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
763 | ev_io_stop (EV_A_ w); |
871 | ev_io_stop (EV_A_ w); |
764 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
872 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
765 | } |
873 | } |
766 | } |
874 | } |
767 | |
875 | |
768 | int inline_size |
876 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
877 | inline_size int |
769 | fd_valid (int fd) |
878 | fd_valid (int fd) |
770 | { |
879 | { |
771 | #ifdef _WIN32 |
880 | #ifdef _WIN32 |
772 | return _get_osfhandle (fd) != -1; |
881 | return _get_osfhandle (fd) != -1; |
773 | #else |
882 | #else |
… | |
… | |
810 | for (fd = 0; fd < anfdmax; ++fd) |
919 | for (fd = 0; fd < anfdmax; ++fd) |
811 | if (anfds [fd].events) |
920 | if (anfds [fd].events) |
812 | { |
921 | { |
813 | anfds [fd].events = 0; |
922 | anfds [fd].events = 0; |
814 | anfds [fd].emask = 0; |
923 | anfds [fd].emask = 0; |
815 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
924 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
816 | } |
925 | } |
817 | } |
926 | } |
818 | |
927 | |
819 | /*****************************************************************************/ |
928 | /*****************************************************************************/ |
820 | |
929 | |
… | |
… | |
836 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
945 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
837 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
946 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
838 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
947 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
839 | |
948 | |
840 | /* away from the root */ |
949 | /* away from the root */ |
841 | void inline_speed |
950 | inline_speed void |
842 | downheap (ANHE *heap, int N, int k) |
951 | downheap (ANHE *heap, int N, int k) |
843 | { |
952 | { |
844 | ANHE he = heap [k]; |
953 | ANHE he = heap [k]; |
845 | ANHE *E = heap + N + HEAP0; |
954 | ANHE *E = heap + N + HEAP0; |
846 | |
955 | |
… | |
… | |
886 | #define HEAP0 1 |
995 | #define HEAP0 1 |
887 | #define HPARENT(k) ((k) >> 1) |
996 | #define HPARENT(k) ((k) >> 1) |
888 | #define UPHEAP_DONE(p,k) (!(p)) |
997 | #define UPHEAP_DONE(p,k) (!(p)) |
889 | |
998 | |
890 | /* away from the root */ |
999 | /* away from the root */ |
891 | void inline_speed |
1000 | inline_speed void |
892 | downheap (ANHE *heap, int N, int k) |
1001 | downheap (ANHE *heap, int N, int k) |
893 | { |
1002 | { |
894 | ANHE he = heap [k]; |
1003 | ANHE he = heap [k]; |
895 | |
1004 | |
896 | for (;;) |
1005 | for (;;) |
… | |
… | |
916 | ev_active (ANHE_w (he)) = k; |
1025 | ev_active (ANHE_w (he)) = k; |
917 | } |
1026 | } |
918 | #endif |
1027 | #endif |
919 | |
1028 | |
920 | /* towards the root */ |
1029 | /* towards the root */ |
921 | void inline_speed |
1030 | inline_speed void |
922 | upheap (ANHE *heap, int k) |
1031 | upheap (ANHE *heap, int k) |
923 | { |
1032 | { |
924 | ANHE he = heap [k]; |
1033 | ANHE he = heap [k]; |
925 | |
1034 | |
926 | for (;;) |
1035 | for (;;) |
… | |
… | |
937 | |
1046 | |
938 | heap [k] = he; |
1047 | heap [k] = he; |
939 | ev_active (ANHE_w (he)) = k; |
1048 | ev_active (ANHE_w (he)) = k; |
940 | } |
1049 | } |
941 | |
1050 | |
942 | void inline_size |
1051 | /* move an element suitably so it is in a correct place */ |
|
|
1052 | inline_size void |
943 | adjustheap (ANHE *heap, int N, int k) |
1053 | adjustheap (ANHE *heap, int N, int k) |
944 | { |
1054 | { |
945 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1055 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
946 | upheap (heap, k); |
1056 | upheap (heap, k); |
947 | else |
1057 | else |
948 | downheap (heap, N, k); |
1058 | downheap (heap, N, k); |
949 | } |
1059 | } |
950 | |
1060 | |
951 | /* rebuild the heap: this function is used only once and executed rarely */ |
1061 | /* rebuild the heap: this function is used only once and executed rarely */ |
952 | void inline_size |
1062 | inline_size void |
953 | reheap (ANHE *heap, int N) |
1063 | reheap (ANHE *heap, int N) |
954 | { |
1064 | { |
955 | int i; |
1065 | int i; |
956 | |
1066 | |
957 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1067 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
960 | upheap (heap, i + HEAP0); |
1070 | upheap (heap, i + HEAP0); |
961 | } |
1071 | } |
962 | |
1072 | |
963 | /*****************************************************************************/ |
1073 | /*****************************************************************************/ |
964 | |
1074 | |
|
|
1075 | /* associate signal watchers to a signal signal */ |
965 | typedef struct |
1076 | typedef struct |
966 | { |
1077 | { |
967 | WL head; |
1078 | WL head; |
968 | EV_ATOMIC_T gotsig; |
1079 | EV_ATOMIC_T gotsig; |
969 | } ANSIG; |
1080 | } ANSIG; |
… | |
… | |
973 | |
1084 | |
974 | static EV_ATOMIC_T gotsig; |
1085 | static EV_ATOMIC_T gotsig; |
975 | |
1086 | |
976 | /*****************************************************************************/ |
1087 | /*****************************************************************************/ |
977 | |
1088 | |
978 | void inline_speed |
1089 | /* used to prepare libev internal fd's */ |
|
|
1090 | /* this is not fork-safe */ |
|
|
1091 | inline_speed void |
979 | fd_intern (int fd) |
1092 | fd_intern (int fd) |
980 | { |
1093 | { |
981 | #ifdef _WIN32 |
1094 | #ifdef _WIN32 |
982 | unsigned long arg = 1; |
1095 | unsigned long arg = 1; |
983 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1096 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
988 | } |
1101 | } |
989 | |
1102 | |
990 | static void noinline |
1103 | static void noinline |
991 | evpipe_init (EV_P) |
1104 | evpipe_init (EV_P) |
992 | { |
1105 | { |
993 | if (!ev_is_active (&pipeev)) |
1106 | if (!ev_is_active (&pipe_w)) |
994 | { |
1107 | { |
995 | #if EV_USE_EVENTFD |
1108 | #if EV_USE_EVENTFD |
996 | if ((evfd = eventfd (0, 0)) >= 0) |
1109 | if ((evfd = eventfd (0, 0)) >= 0) |
997 | { |
1110 | { |
998 | evpipe [0] = -1; |
1111 | evpipe [0] = -1; |
999 | fd_intern (evfd); |
1112 | fd_intern (evfd); |
1000 | ev_io_set (&pipeev, evfd, EV_READ); |
1113 | ev_io_set (&pipe_w, evfd, EV_READ); |
1001 | } |
1114 | } |
1002 | else |
1115 | else |
1003 | #endif |
1116 | #endif |
1004 | { |
1117 | { |
1005 | while (pipe (evpipe)) |
1118 | while (pipe (evpipe)) |
1006 | ev_syserr ("(libev) error creating signal/async pipe"); |
1119 | ev_syserr ("(libev) error creating signal/async pipe"); |
1007 | |
1120 | |
1008 | fd_intern (evpipe [0]); |
1121 | fd_intern (evpipe [0]); |
1009 | fd_intern (evpipe [1]); |
1122 | fd_intern (evpipe [1]); |
1010 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1123 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1011 | } |
1124 | } |
1012 | |
1125 | |
1013 | ev_io_start (EV_A_ &pipeev); |
1126 | ev_io_start (EV_A_ &pipe_w); |
1014 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1127 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1015 | } |
1128 | } |
1016 | } |
1129 | } |
1017 | |
1130 | |
1018 | void inline_size |
1131 | inline_size void |
1019 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1132 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1020 | { |
1133 | { |
1021 | if (!*flag) |
1134 | if (!*flag) |
1022 | { |
1135 | { |
1023 | int old_errno = errno; /* save errno because write might clobber it */ |
1136 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1036 | |
1149 | |
1037 | errno = old_errno; |
1150 | errno = old_errno; |
1038 | } |
1151 | } |
1039 | } |
1152 | } |
1040 | |
1153 | |
|
|
1154 | /* called whenever the libev signal pipe */ |
|
|
1155 | /* got some events (signal, async) */ |
1041 | static void |
1156 | static void |
1042 | pipecb (EV_P_ ev_io *iow, int revents) |
1157 | pipecb (EV_P_ ev_io *iow, int revents) |
1043 | { |
1158 | { |
1044 | #if EV_USE_EVENTFD |
1159 | #if EV_USE_EVENTFD |
1045 | if (evfd >= 0) |
1160 | if (evfd >= 0) |
… | |
… | |
1101 | ev_feed_signal_event (EV_P_ int signum) |
1216 | ev_feed_signal_event (EV_P_ int signum) |
1102 | { |
1217 | { |
1103 | WL w; |
1218 | WL w; |
1104 | |
1219 | |
1105 | #if EV_MULTIPLICITY |
1220 | #if EV_MULTIPLICITY |
1106 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1221 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1107 | #endif |
1222 | #endif |
1108 | |
1223 | |
1109 | --signum; |
1224 | --signum; |
1110 | |
1225 | |
1111 | if (signum < 0 || signum >= signalmax) |
1226 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1127 | |
1242 | |
1128 | #ifndef WIFCONTINUED |
1243 | #ifndef WIFCONTINUED |
1129 | # define WIFCONTINUED(status) 0 |
1244 | # define WIFCONTINUED(status) 0 |
1130 | #endif |
1245 | #endif |
1131 | |
1246 | |
1132 | void inline_speed |
1247 | /* handle a single child status event */ |
|
|
1248 | inline_speed void |
1133 | child_reap (EV_P_ int chain, int pid, int status) |
1249 | child_reap (EV_P_ int chain, int pid, int status) |
1134 | { |
1250 | { |
1135 | ev_child *w; |
1251 | ev_child *w; |
1136 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1252 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1137 | |
1253 | |
… | |
… | |
1150 | |
1266 | |
1151 | #ifndef WCONTINUED |
1267 | #ifndef WCONTINUED |
1152 | # define WCONTINUED 0 |
1268 | # define WCONTINUED 0 |
1153 | #endif |
1269 | #endif |
1154 | |
1270 | |
|
|
1271 | /* called on sigchld etc., calls waitpid */ |
1155 | static void |
1272 | static void |
1156 | childcb (EV_P_ ev_signal *sw, int revents) |
1273 | childcb (EV_P_ ev_signal *sw, int revents) |
1157 | { |
1274 | { |
1158 | int pid, status; |
1275 | int pid, status; |
1159 | |
1276 | |
… | |
… | |
1240 | /* kqueue is borked on everything but netbsd apparently */ |
1357 | /* kqueue is borked on everything but netbsd apparently */ |
1241 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1358 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1242 | flags &= ~EVBACKEND_KQUEUE; |
1359 | flags &= ~EVBACKEND_KQUEUE; |
1243 | #endif |
1360 | #endif |
1244 | #ifdef __APPLE__ |
1361 | #ifdef __APPLE__ |
1245 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1362 | /* only select works correctly on that "unix-certified" platform */ |
1246 | flags &= ~EVBACKEND_POLL; |
1363 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1364 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1247 | #endif |
1365 | #endif |
1248 | |
1366 | |
1249 | return flags; |
1367 | return flags; |
1250 | } |
1368 | } |
1251 | |
1369 | |
… | |
… | |
1265 | ev_backend (EV_P) |
1383 | ev_backend (EV_P) |
1266 | { |
1384 | { |
1267 | return backend; |
1385 | return backend; |
1268 | } |
1386 | } |
1269 | |
1387 | |
|
|
1388 | #if EV_MINIMAL < 2 |
1270 | unsigned int |
1389 | unsigned int |
1271 | ev_loop_count (EV_P) |
1390 | ev_loop_count (EV_P) |
1272 | { |
1391 | { |
1273 | return loop_count; |
1392 | return loop_count; |
1274 | } |
1393 | } |
1275 | |
1394 | |
|
|
1395 | unsigned int |
|
|
1396 | ev_loop_depth (EV_P) |
|
|
1397 | { |
|
|
1398 | return loop_depth; |
|
|
1399 | } |
|
|
1400 | |
1276 | void |
1401 | void |
1277 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1402 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1278 | { |
1403 | { |
1279 | io_blocktime = interval; |
1404 | io_blocktime = interval; |
1280 | } |
1405 | } |
… | |
… | |
1283 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1408 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1284 | { |
1409 | { |
1285 | timeout_blocktime = interval; |
1410 | timeout_blocktime = interval; |
1286 | } |
1411 | } |
1287 | |
1412 | |
|
|
1413 | void |
|
|
1414 | ev_set_userdata (EV_P_ void *data) |
|
|
1415 | { |
|
|
1416 | userdata = data; |
|
|
1417 | } |
|
|
1418 | |
|
|
1419 | void * |
|
|
1420 | ev_userdata (EV_P) |
|
|
1421 | { |
|
|
1422 | return userdata; |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1426 | { |
|
|
1427 | invoke_cb = invoke_pending_cb; |
|
|
1428 | } |
|
|
1429 | |
|
|
1430 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1431 | { |
|
|
1432 | release_cb = release; |
|
|
1433 | acquire_cb = acquire; |
|
|
1434 | } |
|
|
1435 | #endif |
|
|
1436 | |
|
|
1437 | /* initialise a loop structure, must be zero-initialised */ |
1288 | static void noinline |
1438 | static void noinline |
1289 | loop_init (EV_P_ unsigned int flags) |
1439 | loop_init (EV_P_ unsigned int flags) |
1290 | { |
1440 | { |
1291 | if (!backend) |
1441 | if (!backend) |
1292 | { |
1442 | { |
|
|
1443 | #if EV_USE_REALTIME |
|
|
1444 | if (!have_realtime) |
|
|
1445 | { |
|
|
1446 | struct timespec ts; |
|
|
1447 | |
|
|
1448 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1449 | have_realtime = 1; |
|
|
1450 | } |
|
|
1451 | #endif |
|
|
1452 | |
1293 | #if EV_USE_MONOTONIC |
1453 | #if EV_USE_MONOTONIC |
|
|
1454 | if (!have_monotonic) |
1294 | { |
1455 | { |
1295 | struct timespec ts; |
1456 | struct timespec ts; |
|
|
1457 | |
1296 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1458 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1297 | have_monotonic = 1; |
1459 | have_monotonic = 1; |
1298 | } |
1460 | } |
1299 | #endif |
1461 | #endif |
1300 | |
1462 | |
1301 | ev_rt_now = ev_time (); |
1463 | ev_rt_now = ev_time (); |
1302 | mn_now = get_clock (); |
1464 | mn_now = get_clock (); |
1303 | now_floor = mn_now; |
1465 | now_floor = mn_now; |
1304 | rtmn_diff = ev_rt_now - mn_now; |
1466 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1467 | #if EV_MINIMAL < 2 |
|
|
1468 | invoke_cb = ev_invoke_pending; |
|
|
1469 | #endif |
1305 | |
1470 | |
1306 | io_blocktime = 0.; |
1471 | io_blocktime = 0.; |
1307 | timeout_blocktime = 0.; |
1472 | timeout_blocktime = 0.; |
1308 | backend = 0; |
1473 | backend = 0; |
1309 | backend_fd = -1; |
1474 | backend_fd = -1; |
… | |
… | |
1340 | #endif |
1505 | #endif |
1341 | #if EV_USE_SELECT |
1506 | #if EV_USE_SELECT |
1342 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1507 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1343 | #endif |
1508 | #endif |
1344 | |
1509 | |
|
|
1510 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1511 | |
1345 | ev_init (&pipeev, pipecb); |
1512 | ev_init (&pipe_w, pipecb); |
1346 | ev_set_priority (&pipeev, EV_MAXPRI); |
1513 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1347 | } |
1514 | } |
1348 | } |
1515 | } |
1349 | |
1516 | |
|
|
1517 | /* free up a loop structure */ |
1350 | static void noinline |
1518 | static void noinline |
1351 | loop_destroy (EV_P) |
1519 | loop_destroy (EV_P) |
1352 | { |
1520 | { |
1353 | int i; |
1521 | int i; |
1354 | |
1522 | |
1355 | if (ev_is_active (&pipeev)) |
1523 | if (ev_is_active (&pipe_w)) |
1356 | { |
1524 | { |
1357 | ev_ref (EV_A); /* signal watcher */ |
1525 | ev_ref (EV_A); /* signal watcher */ |
1358 | ev_io_stop (EV_A_ &pipeev); |
1526 | ev_io_stop (EV_A_ &pipe_w); |
1359 | |
1527 | |
1360 | #if EV_USE_EVENTFD |
1528 | #if EV_USE_EVENTFD |
1361 | if (evfd >= 0) |
1529 | if (evfd >= 0) |
1362 | close (evfd); |
1530 | close (evfd); |
1363 | #endif |
1531 | #endif |
… | |
… | |
1402 | } |
1570 | } |
1403 | |
1571 | |
1404 | ev_free (anfds); anfdmax = 0; |
1572 | ev_free (anfds); anfdmax = 0; |
1405 | |
1573 | |
1406 | /* have to use the microsoft-never-gets-it-right macro */ |
1574 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1575 | array_free (rfeed, EMPTY); |
1407 | array_free (fdchange, EMPTY); |
1576 | array_free (fdchange, EMPTY); |
1408 | array_free (timer, EMPTY); |
1577 | array_free (timer, EMPTY); |
1409 | #if EV_PERIODIC_ENABLE |
1578 | #if EV_PERIODIC_ENABLE |
1410 | array_free (periodic, EMPTY); |
1579 | array_free (periodic, EMPTY); |
1411 | #endif |
1580 | #endif |
… | |
… | |
1420 | |
1589 | |
1421 | backend = 0; |
1590 | backend = 0; |
1422 | } |
1591 | } |
1423 | |
1592 | |
1424 | #if EV_USE_INOTIFY |
1593 | #if EV_USE_INOTIFY |
1425 | void inline_size infy_fork (EV_P); |
1594 | inline_size void infy_fork (EV_P); |
1426 | #endif |
1595 | #endif |
1427 | |
1596 | |
1428 | void inline_size |
1597 | inline_size void |
1429 | loop_fork (EV_P) |
1598 | loop_fork (EV_P) |
1430 | { |
1599 | { |
1431 | #if EV_USE_PORT |
1600 | #if EV_USE_PORT |
1432 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1601 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1433 | #endif |
1602 | #endif |
… | |
… | |
1439 | #endif |
1608 | #endif |
1440 | #if EV_USE_INOTIFY |
1609 | #if EV_USE_INOTIFY |
1441 | infy_fork (EV_A); |
1610 | infy_fork (EV_A); |
1442 | #endif |
1611 | #endif |
1443 | |
1612 | |
1444 | if (ev_is_active (&pipeev)) |
1613 | if (ev_is_active (&pipe_w)) |
1445 | { |
1614 | { |
1446 | /* this "locks" the handlers against writing to the pipe */ |
1615 | /* this "locks" the handlers against writing to the pipe */ |
1447 | /* while we modify the fd vars */ |
1616 | /* while we modify the fd vars */ |
1448 | gotsig = 1; |
1617 | gotsig = 1; |
1449 | #if EV_ASYNC_ENABLE |
1618 | #if EV_ASYNC_ENABLE |
1450 | gotasync = 1; |
1619 | gotasync = 1; |
1451 | #endif |
1620 | #endif |
1452 | |
1621 | |
1453 | ev_ref (EV_A); |
1622 | ev_ref (EV_A); |
1454 | ev_io_stop (EV_A_ &pipeev); |
1623 | ev_io_stop (EV_A_ &pipe_w); |
1455 | |
1624 | |
1456 | #if EV_USE_EVENTFD |
1625 | #if EV_USE_EVENTFD |
1457 | if (evfd >= 0) |
1626 | if (evfd >= 0) |
1458 | close (evfd); |
1627 | close (evfd); |
1459 | #endif |
1628 | #endif |
… | |
… | |
1464 | close (evpipe [1]); |
1633 | close (evpipe [1]); |
1465 | } |
1634 | } |
1466 | |
1635 | |
1467 | evpipe_init (EV_A); |
1636 | evpipe_init (EV_A); |
1468 | /* now iterate over everything, in case we missed something */ |
1637 | /* now iterate over everything, in case we missed something */ |
1469 | pipecb (EV_A_ &pipeev, EV_READ); |
1638 | pipecb (EV_A_ &pipe_w, EV_READ); |
1470 | } |
1639 | } |
1471 | |
1640 | |
1472 | postfork = 0; |
1641 | postfork = 0; |
1473 | } |
1642 | } |
1474 | |
1643 | |
… | |
… | |
1499 | void |
1668 | void |
1500 | ev_loop_fork (EV_P) |
1669 | ev_loop_fork (EV_P) |
1501 | { |
1670 | { |
1502 | postfork = 1; /* must be in line with ev_default_fork */ |
1671 | postfork = 1; /* must be in line with ev_default_fork */ |
1503 | } |
1672 | } |
|
|
1673 | #endif /* multiplicity */ |
1504 | |
1674 | |
1505 | #if EV_VERIFY |
1675 | #if EV_VERIFY |
1506 | static void noinline |
1676 | static void noinline |
1507 | verify_watcher (EV_P_ W w) |
1677 | verify_watcher (EV_P_ W w) |
1508 | { |
1678 | { |
1509 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1679 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1510 | |
1680 | |
1511 | if (w->pending) |
1681 | if (w->pending) |
1512 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1682 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1513 | } |
1683 | } |
1514 | |
1684 | |
1515 | static void noinline |
1685 | static void noinline |
1516 | verify_heap (EV_P_ ANHE *heap, int N) |
1686 | verify_heap (EV_P_ ANHE *heap, int N) |
1517 | { |
1687 | { |
1518 | int i; |
1688 | int i; |
1519 | |
1689 | |
1520 | for (i = HEAP0; i < N + HEAP0; ++i) |
1690 | for (i = HEAP0; i < N + HEAP0; ++i) |
1521 | { |
1691 | { |
1522 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1692 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1523 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1693 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1524 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1694 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1525 | |
1695 | |
1526 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1696 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1527 | } |
1697 | } |
1528 | } |
1698 | } |
1529 | |
1699 | |
1530 | static void noinline |
1700 | static void noinline |
1531 | array_verify (EV_P_ W *ws, int cnt) |
1701 | array_verify (EV_P_ W *ws, int cnt) |
1532 | { |
1702 | { |
1533 | while (cnt--) |
1703 | while (cnt--) |
1534 | { |
1704 | { |
1535 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1705 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1536 | verify_watcher (EV_A_ ws [cnt]); |
1706 | verify_watcher (EV_A_ ws [cnt]); |
1537 | } |
1707 | } |
1538 | } |
1708 | } |
1539 | #endif |
1709 | #endif |
1540 | |
1710 | |
|
|
1711 | #if EV_MINIMAL < 2 |
1541 | void |
1712 | void |
1542 | ev_loop_verify (EV_P) |
1713 | ev_loop_verify (EV_P) |
1543 | { |
1714 | { |
1544 | #if EV_VERIFY |
1715 | #if EV_VERIFY |
1545 | int i; |
1716 | int i; |
… | |
… | |
1547 | |
1718 | |
1548 | assert (activecnt >= -1); |
1719 | assert (activecnt >= -1); |
1549 | |
1720 | |
1550 | assert (fdchangemax >= fdchangecnt); |
1721 | assert (fdchangemax >= fdchangecnt); |
1551 | for (i = 0; i < fdchangecnt; ++i) |
1722 | for (i = 0; i < fdchangecnt; ++i) |
1552 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1723 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1553 | |
1724 | |
1554 | assert (anfdmax >= 0); |
1725 | assert (anfdmax >= 0); |
1555 | for (i = 0; i < anfdmax; ++i) |
1726 | for (i = 0; i < anfdmax; ++i) |
1556 | for (w = anfds [i].head; w; w = w->next) |
1727 | for (w = anfds [i].head; w; w = w->next) |
1557 | { |
1728 | { |
1558 | verify_watcher (EV_A_ (W)w); |
1729 | verify_watcher (EV_A_ (W)w); |
1559 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1730 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1560 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1731 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1561 | } |
1732 | } |
1562 | |
1733 | |
1563 | assert (timermax >= timercnt); |
1734 | assert (timermax >= timercnt); |
1564 | verify_heap (EV_A_ timers, timercnt); |
1735 | verify_heap (EV_A_ timers, timercnt); |
1565 | |
1736 | |
… | |
… | |
1598 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1769 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1599 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1770 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1600 | # endif |
1771 | # endif |
1601 | #endif |
1772 | #endif |
1602 | } |
1773 | } |
1603 | |
1774 | #endif |
1604 | #endif /* multiplicity */ |
|
|
1605 | |
1775 | |
1606 | #if EV_MULTIPLICITY |
1776 | #if EV_MULTIPLICITY |
1607 | struct ev_loop * |
1777 | struct ev_loop * |
1608 | ev_default_loop_init (unsigned int flags) |
1778 | ev_default_loop_init (unsigned int flags) |
1609 | #else |
1779 | #else |
… | |
… | |
1670 | ev_invoke (EV_P_ void *w, int revents) |
1840 | ev_invoke (EV_P_ void *w, int revents) |
1671 | { |
1841 | { |
1672 | EV_CB_INVOKE ((W)w, revents); |
1842 | EV_CB_INVOKE ((W)w, revents); |
1673 | } |
1843 | } |
1674 | |
1844 | |
1675 | void inline_speed |
1845 | void noinline |
1676 | call_pending (EV_P) |
1846 | ev_invoke_pending (EV_P) |
1677 | { |
1847 | { |
1678 | int pri; |
1848 | int pri; |
1679 | |
1849 | |
1680 | for (pri = NUMPRI; pri--; ) |
1850 | for (pri = NUMPRI; pri--; ) |
1681 | while (pendingcnt [pri]) |
1851 | while (pendingcnt [pri]) |
1682 | { |
1852 | { |
1683 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1853 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1684 | |
1854 | |
1685 | if (expect_true (p->w)) |
|
|
1686 | { |
|
|
1687 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1855 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1856 | /* ^ this is no longer true, as pending_w could be here */ |
1688 | |
1857 | |
1689 | p->w->pending = 0; |
1858 | p->w->pending = 0; |
1690 | EV_CB_INVOKE (p->w, p->events); |
1859 | EV_CB_INVOKE (p->w, p->events); |
1691 | EV_FREQUENT_CHECK; |
1860 | EV_FREQUENT_CHECK; |
1692 | } |
|
|
1693 | } |
1861 | } |
1694 | } |
1862 | } |
1695 | |
1863 | |
1696 | #if EV_IDLE_ENABLE |
1864 | #if EV_IDLE_ENABLE |
1697 | void inline_size |
1865 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1866 | /* only when higher priorities are idle" logic */ |
|
|
1867 | inline_size void |
1698 | idle_reify (EV_P) |
1868 | idle_reify (EV_P) |
1699 | { |
1869 | { |
1700 | if (expect_false (idleall)) |
1870 | if (expect_false (idleall)) |
1701 | { |
1871 | { |
1702 | int pri; |
1872 | int pri; |
… | |
… | |
1714 | } |
1884 | } |
1715 | } |
1885 | } |
1716 | } |
1886 | } |
1717 | #endif |
1887 | #endif |
1718 | |
1888 | |
1719 | void inline_size |
1889 | /* make timers pending */ |
|
|
1890 | inline_size void |
1720 | timers_reify (EV_P) |
1891 | timers_reify (EV_P) |
1721 | { |
1892 | { |
1722 | EV_FREQUENT_CHECK; |
1893 | EV_FREQUENT_CHECK; |
1723 | |
1894 | |
1724 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1895 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1725 | { |
1896 | { |
1726 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1897 | do |
1727 | |
|
|
1728 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1729 | |
|
|
1730 | /* first reschedule or stop timer */ |
|
|
1731 | if (w->repeat) |
|
|
1732 | { |
1898 | { |
|
|
1899 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1900 | |
|
|
1901 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1902 | |
|
|
1903 | /* first reschedule or stop timer */ |
|
|
1904 | if (w->repeat) |
|
|
1905 | { |
1733 | ev_at (w) += w->repeat; |
1906 | ev_at (w) += w->repeat; |
1734 | if (ev_at (w) < mn_now) |
1907 | if (ev_at (w) < mn_now) |
1735 | ev_at (w) = mn_now; |
1908 | ev_at (w) = mn_now; |
1736 | |
1909 | |
1737 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1910 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1738 | |
1911 | |
1739 | ANHE_at_cache (timers [HEAP0]); |
1912 | ANHE_at_cache (timers [HEAP0]); |
1740 | downheap (timers, timercnt, HEAP0); |
1913 | downheap (timers, timercnt, HEAP0); |
|
|
1914 | } |
|
|
1915 | else |
|
|
1916 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1917 | |
|
|
1918 | EV_FREQUENT_CHECK; |
|
|
1919 | feed_reverse (EV_A_ (W)w); |
1741 | } |
1920 | } |
1742 | else |
1921 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1743 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1744 | |
1922 | |
1745 | EV_FREQUENT_CHECK; |
|
|
1746 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1923 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1747 | } |
1924 | } |
1748 | } |
1925 | } |
1749 | |
1926 | |
1750 | #if EV_PERIODIC_ENABLE |
1927 | #if EV_PERIODIC_ENABLE |
1751 | void inline_size |
1928 | /* make periodics pending */ |
|
|
1929 | inline_size void |
1752 | periodics_reify (EV_P) |
1930 | periodics_reify (EV_P) |
1753 | { |
1931 | { |
1754 | EV_FREQUENT_CHECK; |
1932 | EV_FREQUENT_CHECK; |
1755 | |
1933 | |
1756 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1934 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1757 | { |
1935 | { |
1758 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1936 | int feed_count = 0; |
1759 | |
1937 | |
1760 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1938 | do |
1761 | |
|
|
1762 | /* first reschedule or stop timer */ |
|
|
1763 | if (w->reschedule_cb) |
|
|
1764 | { |
1939 | { |
|
|
1940 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1941 | |
|
|
1942 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1943 | |
|
|
1944 | /* first reschedule or stop timer */ |
|
|
1945 | if (w->reschedule_cb) |
|
|
1946 | { |
1765 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1947 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1766 | |
1948 | |
1767 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1949 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1768 | |
1950 | |
1769 | ANHE_at_cache (periodics [HEAP0]); |
1951 | ANHE_at_cache (periodics [HEAP0]); |
1770 | downheap (periodics, periodiccnt, HEAP0); |
1952 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1953 | } |
|
|
1954 | else if (w->interval) |
|
|
1955 | { |
|
|
1956 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1957 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1958 | /* this might happen because of floating point inexactness */ |
|
|
1959 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1960 | { |
|
|
1961 | ev_at (w) += w->interval; |
|
|
1962 | |
|
|
1963 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1964 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1965 | /* has effectively asked to get triggered more often than possible */ |
|
|
1966 | if (ev_at (w) < ev_rt_now) |
|
|
1967 | ev_at (w) = ev_rt_now; |
|
|
1968 | } |
|
|
1969 | |
|
|
1970 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1971 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1972 | } |
|
|
1973 | else |
|
|
1974 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1975 | |
|
|
1976 | EV_FREQUENT_CHECK; |
|
|
1977 | feed_reverse (EV_A_ (W)w); |
1771 | } |
1978 | } |
1772 | else if (w->interval) |
1979 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1773 | { |
|
|
1774 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1775 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1776 | /* this might happen because of floating point inexactness */ |
|
|
1777 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1778 | { |
|
|
1779 | ev_at (w) += w->interval; |
|
|
1780 | |
1980 | |
1781 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1782 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1783 | /* has effectively asked to get triggered more often than possible */ |
|
|
1784 | if (ev_at (w) < ev_rt_now) |
|
|
1785 | ev_at (w) = ev_rt_now; |
|
|
1786 | } |
|
|
1787 | |
|
|
1788 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1789 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1790 | } |
|
|
1791 | else |
|
|
1792 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1793 | |
|
|
1794 | EV_FREQUENT_CHECK; |
|
|
1795 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1981 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1796 | } |
1982 | } |
1797 | } |
1983 | } |
1798 | |
1984 | |
|
|
1985 | /* simply recalculate all periodics */ |
|
|
1986 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1799 | static void noinline |
1987 | static void noinline |
1800 | periodics_reschedule (EV_P) |
1988 | periodics_reschedule (EV_P) |
1801 | { |
1989 | { |
1802 | int i; |
1990 | int i; |
1803 | |
1991 | |
… | |
… | |
1816 | |
2004 | |
1817 | reheap (periodics, periodiccnt); |
2005 | reheap (periodics, periodiccnt); |
1818 | } |
2006 | } |
1819 | #endif |
2007 | #endif |
1820 | |
2008 | |
1821 | void inline_speed |
2009 | /* adjust all timers by a given offset */ |
|
|
2010 | static void noinline |
|
|
2011 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2012 | { |
|
|
2013 | int i; |
|
|
2014 | |
|
|
2015 | for (i = 0; i < timercnt; ++i) |
|
|
2016 | { |
|
|
2017 | ANHE *he = timers + i + HEAP0; |
|
|
2018 | ANHE_w (*he)->at += adjust; |
|
|
2019 | ANHE_at_cache (*he); |
|
|
2020 | } |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2024 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2025 | inline_speed void |
1822 | time_update (EV_P_ ev_tstamp max_block) |
2026 | time_update (EV_P_ ev_tstamp max_block) |
1823 | { |
2027 | { |
1824 | int i; |
|
|
1825 | |
|
|
1826 | #if EV_USE_MONOTONIC |
2028 | #if EV_USE_MONOTONIC |
1827 | if (expect_true (have_monotonic)) |
2029 | if (expect_true (have_monotonic)) |
1828 | { |
2030 | { |
|
|
2031 | int i; |
1829 | ev_tstamp odiff = rtmn_diff; |
2032 | ev_tstamp odiff = rtmn_diff; |
1830 | |
2033 | |
1831 | mn_now = get_clock (); |
2034 | mn_now = get_clock (); |
1832 | |
2035 | |
1833 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2036 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1859 | ev_rt_now = ev_time (); |
2062 | ev_rt_now = ev_time (); |
1860 | mn_now = get_clock (); |
2063 | mn_now = get_clock (); |
1861 | now_floor = mn_now; |
2064 | now_floor = mn_now; |
1862 | } |
2065 | } |
1863 | |
2066 | |
|
|
2067 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2068 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1864 | # if EV_PERIODIC_ENABLE |
2069 | # if EV_PERIODIC_ENABLE |
1865 | periodics_reschedule (EV_A); |
2070 | periodics_reschedule (EV_A); |
1866 | # endif |
2071 | # endif |
1867 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1868 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1869 | } |
2072 | } |
1870 | else |
2073 | else |
1871 | #endif |
2074 | #endif |
1872 | { |
2075 | { |
1873 | ev_rt_now = ev_time (); |
2076 | ev_rt_now = ev_time (); |
1874 | |
2077 | |
1875 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2078 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1876 | { |
2079 | { |
|
|
2080 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2081 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1877 | #if EV_PERIODIC_ENABLE |
2082 | #if EV_PERIODIC_ENABLE |
1878 | periodics_reschedule (EV_A); |
2083 | periodics_reschedule (EV_A); |
1879 | #endif |
2084 | #endif |
1880 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1881 | for (i = 0; i < timercnt; ++i) |
|
|
1882 | { |
|
|
1883 | ANHE *he = timers + i + HEAP0; |
|
|
1884 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1885 | ANHE_at_cache (*he); |
|
|
1886 | } |
|
|
1887 | } |
2085 | } |
1888 | |
2086 | |
1889 | mn_now = ev_rt_now; |
2087 | mn_now = ev_rt_now; |
1890 | } |
2088 | } |
1891 | } |
2089 | } |
1892 | |
2090 | |
1893 | void |
2091 | void |
1894 | ev_ref (EV_P) |
|
|
1895 | { |
|
|
1896 | ++activecnt; |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | void |
|
|
1900 | ev_unref (EV_P) |
|
|
1901 | { |
|
|
1902 | --activecnt; |
|
|
1903 | } |
|
|
1904 | |
|
|
1905 | void |
|
|
1906 | ev_now_update (EV_P) |
|
|
1907 | { |
|
|
1908 | time_update (EV_A_ 1e100); |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | static int loop_done; |
|
|
1912 | |
|
|
1913 | void |
|
|
1914 | ev_loop (EV_P_ int flags) |
2092 | ev_loop (EV_P_ int flags) |
1915 | { |
2093 | { |
|
|
2094 | #if EV_MINIMAL < 2 |
|
|
2095 | ++loop_depth; |
|
|
2096 | #endif |
|
|
2097 | |
|
|
2098 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2099 | |
1916 | loop_done = EVUNLOOP_CANCEL; |
2100 | loop_done = EVUNLOOP_CANCEL; |
1917 | |
2101 | |
1918 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2102 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1919 | |
2103 | |
1920 | do |
2104 | do |
1921 | { |
2105 | { |
1922 | #if EV_VERIFY >= 2 |
2106 | #if EV_VERIFY >= 2 |
1923 | ev_loop_verify (EV_A); |
2107 | ev_loop_verify (EV_A); |
… | |
… | |
1936 | /* we might have forked, so queue fork handlers */ |
2120 | /* we might have forked, so queue fork handlers */ |
1937 | if (expect_false (postfork)) |
2121 | if (expect_false (postfork)) |
1938 | if (forkcnt) |
2122 | if (forkcnt) |
1939 | { |
2123 | { |
1940 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2124 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1941 | call_pending (EV_A); |
2125 | EV_INVOKE_PENDING; |
1942 | } |
2126 | } |
1943 | #endif |
2127 | #endif |
1944 | |
2128 | |
1945 | /* queue prepare watchers (and execute them) */ |
2129 | /* queue prepare watchers (and execute them) */ |
1946 | if (expect_false (preparecnt)) |
2130 | if (expect_false (preparecnt)) |
1947 | { |
2131 | { |
1948 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2132 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1949 | call_pending (EV_A); |
2133 | EV_INVOKE_PENDING; |
1950 | } |
2134 | } |
1951 | |
2135 | |
1952 | if (expect_false (!activecnt)) |
2136 | if (expect_false (loop_done)) |
1953 | break; |
2137 | break; |
1954 | |
2138 | |
1955 | /* we might have forked, so reify kernel state if necessary */ |
2139 | /* we might have forked, so reify kernel state if necessary */ |
1956 | if (expect_false (postfork)) |
2140 | if (expect_false (postfork)) |
1957 | loop_fork (EV_A); |
2141 | loop_fork (EV_A); |
… | |
… | |
1964 | ev_tstamp waittime = 0.; |
2148 | ev_tstamp waittime = 0.; |
1965 | ev_tstamp sleeptime = 0.; |
2149 | ev_tstamp sleeptime = 0.; |
1966 | |
2150 | |
1967 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2151 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1968 | { |
2152 | { |
|
|
2153 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2154 | ev_tstamp prev_mn_now = mn_now; |
|
|
2155 | |
1969 | /* update time to cancel out callback processing overhead */ |
2156 | /* update time to cancel out callback processing overhead */ |
1970 | time_update (EV_A_ 1e100); |
2157 | time_update (EV_A_ 1e100); |
1971 | |
2158 | |
1972 | waittime = MAX_BLOCKTIME; |
2159 | waittime = MAX_BLOCKTIME; |
1973 | |
2160 | |
… | |
… | |
1983 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2170 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1984 | if (waittime > to) waittime = to; |
2171 | if (waittime > to) waittime = to; |
1985 | } |
2172 | } |
1986 | #endif |
2173 | #endif |
1987 | |
2174 | |
|
|
2175 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1988 | if (expect_false (waittime < timeout_blocktime)) |
2176 | if (expect_false (waittime < timeout_blocktime)) |
1989 | waittime = timeout_blocktime; |
2177 | waittime = timeout_blocktime; |
1990 | |
2178 | |
1991 | sleeptime = waittime - backend_fudge; |
2179 | /* extra check because io_blocktime is commonly 0 */ |
1992 | |
|
|
1993 | if (expect_true (sleeptime > io_blocktime)) |
2180 | if (expect_false (io_blocktime)) |
1994 | sleeptime = io_blocktime; |
|
|
1995 | |
|
|
1996 | if (sleeptime) |
|
|
1997 | { |
2181 | { |
|
|
2182 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2183 | |
|
|
2184 | if (sleeptime > waittime - backend_fudge) |
|
|
2185 | sleeptime = waittime - backend_fudge; |
|
|
2186 | |
|
|
2187 | if (expect_true (sleeptime > 0.)) |
|
|
2188 | { |
1998 | ev_sleep (sleeptime); |
2189 | ev_sleep (sleeptime); |
1999 | waittime -= sleeptime; |
2190 | waittime -= sleeptime; |
|
|
2191 | } |
2000 | } |
2192 | } |
2001 | } |
2193 | } |
2002 | |
2194 | |
|
|
2195 | #if EV_MINIMAL < 2 |
2003 | ++loop_count; |
2196 | ++loop_count; |
|
|
2197 | #endif |
|
|
2198 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2004 | backend_poll (EV_A_ waittime); |
2199 | backend_poll (EV_A_ waittime); |
|
|
2200 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2005 | |
2201 | |
2006 | /* update ev_rt_now, do magic */ |
2202 | /* update ev_rt_now, do magic */ |
2007 | time_update (EV_A_ waittime + sleeptime); |
2203 | time_update (EV_A_ waittime + sleeptime); |
2008 | } |
2204 | } |
2009 | |
2205 | |
… | |
… | |
2020 | |
2216 | |
2021 | /* queue check watchers, to be executed first */ |
2217 | /* queue check watchers, to be executed first */ |
2022 | if (expect_false (checkcnt)) |
2218 | if (expect_false (checkcnt)) |
2023 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2219 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2024 | |
2220 | |
2025 | call_pending (EV_A); |
2221 | EV_INVOKE_PENDING; |
2026 | } |
2222 | } |
2027 | while (expect_true ( |
2223 | while (expect_true ( |
2028 | activecnt |
2224 | activecnt |
2029 | && !loop_done |
2225 | && !loop_done |
2030 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2226 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2031 | )); |
2227 | )); |
2032 | |
2228 | |
2033 | if (loop_done == EVUNLOOP_ONE) |
2229 | if (loop_done == EVUNLOOP_ONE) |
2034 | loop_done = EVUNLOOP_CANCEL; |
2230 | loop_done = EVUNLOOP_CANCEL; |
|
|
2231 | |
|
|
2232 | #if EV_MINIMAL < 2 |
|
|
2233 | --loop_depth; |
|
|
2234 | #endif |
2035 | } |
2235 | } |
2036 | |
2236 | |
2037 | void |
2237 | void |
2038 | ev_unloop (EV_P_ int how) |
2238 | ev_unloop (EV_P_ int how) |
2039 | { |
2239 | { |
2040 | loop_done = how; |
2240 | loop_done = how; |
2041 | } |
2241 | } |
2042 | |
2242 | |
|
|
2243 | void |
|
|
2244 | ev_ref (EV_P) |
|
|
2245 | { |
|
|
2246 | ++activecnt; |
|
|
2247 | } |
|
|
2248 | |
|
|
2249 | void |
|
|
2250 | ev_unref (EV_P) |
|
|
2251 | { |
|
|
2252 | --activecnt; |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | void |
|
|
2256 | ev_now_update (EV_P) |
|
|
2257 | { |
|
|
2258 | time_update (EV_A_ 1e100); |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | void |
|
|
2262 | ev_suspend (EV_P) |
|
|
2263 | { |
|
|
2264 | ev_now_update (EV_A); |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | void |
|
|
2268 | ev_resume (EV_P) |
|
|
2269 | { |
|
|
2270 | ev_tstamp mn_prev = mn_now; |
|
|
2271 | |
|
|
2272 | ev_now_update (EV_A); |
|
|
2273 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2274 | #if EV_PERIODIC_ENABLE |
|
|
2275 | /* TODO: really do this? */ |
|
|
2276 | periodics_reschedule (EV_A); |
|
|
2277 | #endif |
|
|
2278 | } |
|
|
2279 | |
2043 | /*****************************************************************************/ |
2280 | /*****************************************************************************/ |
|
|
2281 | /* singly-linked list management, used when the expected list length is short */ |
2044 | |
2282 | |
2045 | void inline_size |
2283 | inline_size void |
2046 | wlist_add (WL *head, WL elem) |
2284 | wlist_add (WL *head, WL elem) |
2047 | { |
2285 | { |
2048 | elem->next = *head; |
2286 | elem->next = *head; |
2049 | *head = elem; |
2287 | *head = elem; |
2050 | } |
2288 | } |
2051 | |
2289 | |
2052 | void inline_size |
2290 | inline_size void |
2053 | wlist_del (WL *head, WL elem) |
2291 | wlist_del (WL *head, WL elem) |
2054 | { |
2292 | { |
2055 | while (*head) |
2293 | while (*head) |
2056 | { |
2294 | { |
2057 | if (*head == elem) |
2295 | if (*head == elem) |
… | |
… | |
2062 | |
2300 | |
2063 | head = &(*head)->next; |
2301 | head = &(*head)->next; |
2064 | } |
2302 | } |
2065 | } |
2303 | } |
2066 | |
2304 | |
2067 | void inline_speed |
2305 | /* internal, faster, version of ev_clear_pending */ |
|
|
2306 | inline_speed void |
2068 | clear_pending (EV_P_ W w) |
2307 | clear_pending (EV_P_ W w) |
2069 | { |
2308 | { |
2070 | if (w->pending) |
2309 | if (w->pending) |
2071 | { |
2310 | { |
2072 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2311 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2073 | w->pending = 0; |
2312 | w->pending = 0; |
2074 | } |
2313 | } |
2075 | } |
2314 | } |
2076 | |
2315 | |
2077 | int |
2316 | int |
… | |
… | |
2081 | int pending = w_->pending; |
2320 | int pending = w_->pending; |
2082 | |
2321 | |
2083 | if (expect_true (pending)) |
2322 | if (expect_true (pending)) |
2084 | { |
2323 | { |
2085 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2324 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2325 | p->w = (W)&pending_w; |
2086 | w_->pending = 0; |
2326 | w_->pending = 0; |
2087 | p->w = 0; |
|
|
2088 | return p->events; |
2327 | return p->events; |
2089 | } |
2328 | } |
2090 | else |
2329 | else |
2091 | return 0; |
2330 | return 0; |
2092 | } |
2331 | } |
2093 | |
2332 | |
2094 | void inline_size |
2333 | inline_size void |
2095 | pri_adjust (EV_P_ W w) |
2334 | pri_adjust (EV_P_ W w) |
2096 | { |
2335 | { |
2097 | int pri = w->priority; |
2336 | int pri = ev_priority (w); |
2098 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2337 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2099 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2338 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2100 | w->priority = pri; |
2339 | ev_set_priority (w, pri); |
2101 | } |
2340 | } |
2102 | |
2341 | |
2103 | void inline_speed |
2342 | inline_speed void |
2104 | ev_start (EV_P_ W w, int active) |
2343 | ev_start (EV_P_ W w, int active) |
2105 | { |
2344 | { |
2106 | pri_adjust (EV_A_ w); |
2345 | pri_adjust (EV_A_ w); |
2107 | w->active = active; |
2346 | w->active = active; |
2108 | ev_ref (EV_A); |
2347 | ev_ref (EV_A); |
2109 | } |
2348 | } |
2110 | |
2349 | |
2111 | void inline_size |
2350 | inline_size void |
2112 | ev_stop (EV_P_ W w) |
2351 | ev_stop (EV_P_ W w) |
2113 | { |
2352 | { |
2114 | ev_unref (EV_A); |
2353 | ev_unref (EV_A); |
2115 | w->active = 0; |
2354 | w->active = 0; |
2116 | } |
2355 | } |
… | |
… | |
2123 | int fd = w->fd; |
2362 | int fd = w->fd; |
2124 | |
2363 | |
2125 | if (expect_false (ev_is_active (w))) |
2364 | if (expect_false (ev_is_active (w))) |
2126 | return; |
2365 | return; |
2127 | |
2366 | |
2128 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2367 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2129 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2368 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2130 | |
2369 | |
2131 | EV_FREQUENT_CHECK; |
2370 | EV_FREQUENT_CHECK; |
2132 | |
2371 | |
2133 | ev_start (EV_A_ (W)w, 1); |
2372 | ev_start (EV_A_ (W)w, 1); |
2134 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2373 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2135 | wlist_add (&anfds[fd].head, (WL)w); |
2374 | wlist_add (&anfds[fd].head, (WL)w); |
2136 | |
2375 | |
2137 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2376 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2138 | w->events &= ~EV_IOFDSET; |
2377 | w->events &= ~EV__IOFDSET; |
2139 | |
2378 | |
2140 | EV_FREQUENT_CHECK; |
2379 | EV_FREQUENT_CHECK; |
2141 | } |
2380 | } |
2142 | |
2381 | |
2143 | void noinline |
2382 | void noinline |
… | |
… | |
2145 | { |
2384 | { |
2146 | clear_pending (EV_A_ (W)w); |
2385 | clear_pending (EV_A_ (W)w); |
2147 | if (expect_false (!ev_is_active (w))) |
2386 | if (expect_false (!ev_is_active (w))) |
2148 | return; |
2387 | return; |
2149 | |
2388 | |
2150 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2389 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2151 | |
2390 | |
2152 | EV_FREQUENT_CHECK; |
2391 | EV_FREQUENT_CHECK; |
2153 | |
2392 | |
2154 | wlist_del (&anfds[w->fd].head, (WL)w); |
2393 | wlist_del (&anfds[w->fd].head, (WL)w); |
2155 | ev_stop (EV_A_ (W)w); |
2394 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2165 | if (expect_false (ev_is_active (w))) |
2404 | if (expect_false (ev_is_active (w))) |
2166 | return; |
2405 | return; |
2167 | |
2406 | |
2168 | ev_at (w) += mn_now; |
2407 | ev_at (w) += mn_now; |
2169 | |
2408 | |
2170 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2409 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2171 | |
2410 | |
2172 | EV_FREQUENT_CHECK; |
2411 | EV_FREQUENT_CHECK; |
2173 | |
2412 | |
2174 | ++timercnt; |
2413 | ++timercnt; |
2175 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2414 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2178 | ANHE_at_cache (timers [ev_active (w)]); |
2417 | ANHE_at_cache (timers [ev_active (w)]); |
2179 | upheap (timers, ev_active (w)); |
2418 | upheap (timers, ev_active (w)); |
2180 | |
2419 | |
2181 | EV_FREQUENT_CHECK; |
2420 | EV_FREQUENT_CHECK; |
2182 | |
2421 | |
2183 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2422 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2184 | } |
2423 | } |
2185 | |
2424 | |
2186 | void noinline |
2425 | void noinline |
2187 | ev_timer_stop (EV_P_ ev_timer *w) |
2426 | ev_timer_stop (EV_P_ ev_timer *w) |
2188 | { |
2427 | { |
… | |
… | |
2193 | EV_FREQUENT_CHECK; |
2432 | EV_FREQUENT_CHECK; |
2194 | |
2433 | |
2195 | { |
2434 | { |
2196 | int active = ev_active (w); |
2435 | int active = ev_active (w); |
2197 | |
2436 | |
2198 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2437 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2199 | |
2438 | |
2200 | --timercnt; |
2439 | --timercnt; |
2201 | |
2440 | |
2202 | if (expect_true (active < timercnt + HEAP0)) |
2441 | if (expect_true (active < timercnt + HEAP0)) |
2203 | { |
2442 | { |
… | |
… | |
2247 | |
2486 | |
2248 | if (w->reschedule_cb) |
2487 | if (w->reschedule_cb) |
2249 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2488 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2250 | else if (w->interval) |
2489 | else if (w->interval) |
2251 | { |
2490 | { |
2252 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2491 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2253 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2492 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2254 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2493 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2255 | } |
2494 | } |
2256 | else |
2495 | else |
2257 | ev_at (w) = w->offset; |
2496 | ev_at (w) = w->offset; |
… | |
… | |
2265 | ANHE_at_cache (periodics [ev_active (w)]); |
2504 | ANHE_at_cache (periodics [ev_active (w)]); |
2266 | upheap (periodics, ev_active (w)); |
2505 | upheap (periodics, ev_active (w)); |
2267 | |
2506 | |
2268 | EV_FREQUENT_CHECK; |
2507 | EV_FREQUENT_CHECK; |
2269 | |
2508 | |
2270 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2509 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2271 | } |
2510 | } |
2272 | |
2511 | |
2273 | void noinline |
2512 | void noinline |
2274 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2513 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2275 | { |
2514 | { |
… | |
… | |
2280 | EV_FREQUENT_CHECK; |
2519 | EV_FREQUENT_CHECK; |
2281 | |
2520 | |
2282 | { |
2521 | { |
2283 | int active = ev_active (w); |
2522 | int active = ev_active (w); |
2284 | |
2523 | |
2285 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2524 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2286 | |
2525 | |
2287 | --periodiccnt; |
2526 | --periodiccnt; |
2288 | |
2527 | |
2289 | if (expect_true (active < periodiccnt + HEAP0)) |
2528 | if (expect_true (active < periodiccnt + HEAP0)) |
2290 | { |
2529 | { |
… | |
… | |
2313 | |
2552 | |
2314 | void noinline |
2553 | void noinline |
2315 | ev_signal_start (EV_P_ ev_signal *w) |
2554 | ev_signal_start (EV_P_ ev_signal *w) |
2316 | { |
2555 | { |
2317 | #if EV_MULTIPLICITY |
2556 | #if EV_MULTIPLICITY |
2318 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2557 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2319 | #endif |
2558 | #endif |
2320 | if (expect_false (ev_is_active (w))) |
2559 | if (expect_false (ev_is_active (w))) |
2321 | return; |
2560 | return; |
2322 | |
2561 | |
2323 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2562 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2324 | |
2563 | |
2325 | evpipe_init (EV_A); |
2564 | evpipe_init (EV_A); |
2326 | |
2565 | |
2327 | EV_FREQUENT_CHECK; |
2566 | EV_FREQUENT_CHECK; |
2328 | |
2567 | |
… | |
… | |
2346 | if (!((WL)w)->next) |
2585 | if (!((WL)w)->next) |
2347 | { |
2586 | { |
2348 | #if _WIN32 |
2587 | #if _WIN32 |
2349 | signal (w->signum, ev_sighandler); |
2588 | signal (w->signum, ev_sighandler); |
2350 | #else |
2589 | #else |
2351 | struct sigaction sa; |
2590 | struct sigaction sa = { }; |
2352 | sa.sa_handler = ev_sighandler; |
2591 | sa.sa_handler = ev_sighandler; |
2353 | sigfillset (&sa.sa_mask); |
2592 | sigfillset (&sa.sa_mask); |
2354 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2593 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2355 | sigaction (w->signum, &sa, 0); |
2594 | sigaction (w->signum, &sa, 0); |
2356 | #endif |
2595 | #endif |
… | |
… | |
2379 | |
2618 | |
2380 | void |
2619 | void |
2381 | ev_child_start (EV_P_ ev_child *w) |
2620 | ev_child_start (EV_P_ ev_child *w) |
2382 | { |
2621 | { |
2383 | #if EV_MULTIPLICITY |
2622 | #if EV_MULTIPLICITY |
2384 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2623 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2385 | #endif |
2624 | #endif |
2386 | if (expect_false (ev_is_active (w))) |
2625 | if (expect_false (ev_is_active (w))) |
2387 | return; |
2626 | return; |
2388 | |
2627 | |
2389 | EV_FREQUENT_CHECK; |
2628 | EV_FREQUENT_CHECK; |
… | |
… | |
2414 | # ifdef _WIN32 |
2653 | # ifdef _WIN32 |
2415 | # undef lstat |
2654 | # undef lstat |
2416 | # define lstat(a,b) _stati64 (a,b) |
2655 | # define lstat(a,b) _stati64 (a,b) |
2417 | # endif |
2656 | # endif |
2418 | |
2657 | |
2419 | #define DEF_STAT_INTERVAL 5.0074891 |
2658 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2659 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2420 | #define MIN_STAT_INTERVAL 0.1074891 |
2660 | #define MIN_STAT_INTERVAL 0.1074891 |
2421 | |
2661 | |
2422 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2662 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2423 | |
2663 | |
2424 | #if EV_USE_INOTIFY |
2664 | #if EV_USE_INOTIFY |
2425 | # define EV_INOTIFY_BUFSIZE 8192 |
2665 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2429 | { |
2669 | { |
2430 | 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); |
2670 | 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); |
2431 | |
2671 | |
2432 | if (w->wd < 0) |
2672 | if (w->wd < 0) |
2433 | { |
2673 | { |
|
|
2674 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2434 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2675 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2435 | |
2676 | |
2436 | /* monitor some parent directory for speedup hints */ |
2677 | /* monitor some parent directory for speedup hints */ |
2437 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2678 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2438 | /* but an efficiency issue only */ |
2679 | /* but an efficiency issue only */ |
2439 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2680 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2440 | { |
2681 | { |
2441 | char path [4096]; |
2682 | char path [4096]; |
2442 | strcpy (path, w->path); |
2683 | strcpy (path, w->path); |
… | |
… | |
2446 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2687 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2447 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2688 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2448 | |
2689 | |
2449 | char *pend = strrchr (path, '/'); |
2690 | char *pend = strrchr (path, '/'); |
2450 | |
2691 | |
2451 | if (!pend) |
2692 | if (!pend || pend == path) |
2452 | break; /* whoops, no '/', complain to your admin */ |
2693 | break; |
2453 | |
2694 | |
2454 | *pend = 0; |
2695 | *pend = 0; |
2455 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2696 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2456 | } |
2697 | } |
2457 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2698 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2458 | } |
2699 | } |
2459 | } |
2700 | } |
2460 | else |
|
|
2461 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2462 | |
2701 | |
2463 | if (w->wd >= 0) |
2702 | if (w->wd >= 0) |
|
|
2703 | { |
2464 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2704 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2705 | |
|
|
2706 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2707 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2708 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2709 | struct statfs sfs; |
|
|
2710 | |
|
|
2711 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2712 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2713 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2714 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2715 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2716 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2717 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2718 | return; |
|
|
2719 | |
|
|
2720 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2721 | ev_timer_again (EV_A_ &w->timer); |
|
|
2722 | } |
2465 | } |
2723 | } |
2466 | |
2724 | |
2467 | static void noinline |
2725 | static void noinline |
2468 | infy_del (EV_P_ ev_stat *w) |
2726 | infy_del (EV_P_ ev_stat *w) |
2469 | { |
2727 | { |
… | |
… | |
2499 | |
2757 | |
2500 | if (w->wd == wd || wd == -1) |
2758 | if (w->wd == wd || wd == -1) |
2501 | { |
2759 | { |
2502 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2760 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2503 | { |
2761 | { |
|
|
2762 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2504 | w->wd = -1; |
2763 | w->wd = -1; |
2505 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2764 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2506 | } |
2765 | } |
2507 | |
2766 | |
2508 | stat_timer_cb (EV_A_ &w->timer, 0); |
2767 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2521 | |
2780 | |
2522 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2781 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2523 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2782 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2524 | } |
2783 | } |
2525 | |
2784 | |
2526 | void inline_size |
2785 | inline_size void |
2527 | infy_init (EV_P) |
2786 | check_2625 (EV_P) |
2528 | { |
2787 | { |
2529 | if (fs_fd != -2) |
|
|
2530 | return; |
|
|
2531 | |
|
|
2532 | /* kernels < 2.6.25 are borked |
2788 | /* kernels < 2.6.25 are borked |
2533 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2789 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2534 | */ |
2790 | */ |
2535 | { |
|
|
2536 | struct utsname buf; |
2791 | struct utsname buf; |
2537 | int major, minor, micro; |
2792 | int major, minor, micro; |
2538 | |
2793 | |
2539 | fs_fd = -1; |
|
|
2540 | |
|
|
2541 | if (uname (&buf)) |
2794 | if (uname (&buf)) |
2542 | return; |
2795 | return; |
2543 | |
2796 | |
2544 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
2797 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
2545 | return; |
2798 | return; |
2546 | |
2799 | |
2547 | if (major < 2 |
2800 | if (major < 2 |
2548 | || (major == 2 && minor < 6) |
2801 | || (major == 2 && minor < 6) |
2549 | || (major == 2 && minor == 6 && micro < 25)) |
2802 | || (major == 2 && minor == 6 && micro < 25)) |
2550 | return; |
2803 | return; |
2551 | } |
2804 | |
|
|
2805 | fs_2625 = 1; |
|
|
2806 | } |
|
|
2807 | |
|
|
2808 | inline_size void |
|
|
2809 | infy_init (EV_P) |
|
|
2810 | { |
|
|
2811 | if (fs_fd != -2) |
|
|
2812 | return; |
|
|
2813 | |
|
|
2814 | fs_fd = -1; |
|
|
2815 | |
|
|
2816 | check_2625 (EV_A); |
2552 | |
2817 | |
2553 | fs_fd = inotify_init (); |
2818 | fs_fd = inotify_init (); |
2554 | |
2819 | |
2555 | if (fs_fd >= 0) |
2820 | if (fs_fd >= 0) |
2556 | { |
2821 | { |
… | |
… | |
2558 | ev_set_priority (&fs_w, EV_MAXPRI); |
2823 | ev_set_priority (&fs_w, EV_MAXPRI); |
2559 | ev_io_start (EV_A_ &fs_w); |
2824 | ev_io_start (EV_A_ &fs_w); |
2560 | } |
2825 | } |
2561 | } |
2826 | } |
2562 | |
2827 | |
2563 | void inline_size |
2828 | inline_size void |
2564 | infy_fork (EV_P) |
2829 | infy_fork (EV_P) |
2565 | { |
2830 | { |
2566 | int slot; |
2831 | int slot; |
2567 | |
2832 | |
2568 | if (fs_fd < 0) |
2833 | if (fs_fd < 0) |
… | |
… | |
2584 | w->wd = -1; |
2849 | w->wd = -1; |
2585 | |
2850 | |
2586 | if (fs_fd >= 0) |
2851 | if (fs_fd >= 0) |
2587 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2852 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2588 | else |
2853 | else |
2589 | ev_timer_start (EV_A_ &w->timer); |
2854 | ev_timer_again (EV_A_ &w->timer); |
2590 | } |
2855 | } |
2591 | } |
2856 | } |
2592 | } |
2857 | } |
2593 | |
2858 | |
2594 | #endif |
2859 | #endif |
… | |
… | |
2649 | ev_stat_start (EV_P_ ev_stat *w) |
2914 | ev_stat_start (EV_P_ ev_stat *w) |
2650 | { |
2915 | { |
2651 | if (expect_false (ev_is_active (w))) |
2916 | if (expect_false (ev_is_active (w))) |
2652 | return; |
2917 | return; |
2653 | |
2918 | |
2654 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2655 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2656 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2657 | |
|
|
2658 | ev_stat_stat (EV_A_ w); |
2919 | ev_stat_stat (EV_A_ w); |
2659 | |
2920 | |
|
|
2921 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2660 | if (w->interval < MIN_STAT_INTERVAL) |
2922 | w->interval = MIN_STAT_INTERVAL; |
2661 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2662 | |
2923 | |
2663 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2924 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2664 | ev_set_priority (&w->timer, ev_priority (w)); |
2925 | ev_set_priority (&w->timer, ev_priority (w)); |
2665 | |
2926 | |
2666 | #if EV_USE_INOTIFY |
2927 | #if EV_USE_INOTIFY |
2667 | infy_init (EV_A); |
2928 | infy_init (EV_A); |
2668 | |
2929 | |
2669 | if (fs_fd >= 0) |
2930 | if (fs_fd >= 0) |
2670 | infy_add (EV_A_ w); |
2931 | infy_add (EV_A_ w); |
2671 | else |
2932 | else |
2672 | #endif |
2933 | #endif |
2673 | ev_timer_start (EV_A_ &w->timer); |
2934 | ev_timer_again (EV_A_ &w->timer); |
2674 | |
2935 | |
2675 | ev_start (EV_A_ (W)w, 1); |
2936 | ev_start (EV_A_ (W)w, 1); |
2676 | |
2937 | |
2677 | EV_FREQUENT_CHECK; |
2938 | EV_FREQUENT_CHECK; |
2678 | } |
2939 | } |
… | |
… | |
2853 | static void |
3114 | static void |
2854 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3115 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2855 | { |
3116 | { |
2856 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3117 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2857 | |
3118 | |
|
|
3119 | ev_embed_stop (EV_A_ w); |
|
|
3120 | |
2858 | { |
3121 | { |
2859 | struct ev_loop *loop = w->other; |
3122 | struct ev_loop *loop = w->other; |
2860 | |
3123 | |
2861 | ev_loop_fork (EV_A); |
3124 | ev_loop_fork (EV_A); |
|
|
3125 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2862 | } |
3126 | } |
|
|
3127 | |
|
|
3128 | ev_embed_start (EV_A_ w); |
2863 | } |
3129 | } |
2864 | |
3130 | |
2865 | #if 0 |
3131 | #if 0 |
2866 | static void |
3132 | static void |
2867 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3133 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2876 | if (expect_false (ev_is_active (w))) |
3142 | if (expect_false (ev_is_active (w))) |
2877 | return; |
3143 | return; |
2878 | |
3144 | |
2879 | { |
3145 | { |
2880 | struct ev_loop *loop = w->other; |
3146 | struct ev_loop *loop = w->other; |
2881 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3147 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2882 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3148 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2883 | } |
3149 | } |
2884 | |
3150 | |
2885 | EV_FREQUENT_CHECK; |
3151 | EV_FREQUENT_CHECK; |
2886 | |
3152 | |
… | |
… | |
3069 | ev_timer_set (&once->to, timeout, 0.); |
3335 | ev_timer_set (&once->to, timeout, 0.); |
3070 | ev_timer_start (EV_A_ &once->to); |
3336 | ev_timer_start (EV_A_ &once->to); |
3071 | } |
3337 | } |
3072 | } |
3338 | } |
3073 | |
3339 | |
|
|
3340 | /*****************************************************************************/ |
|
|
3341 | |
|
|
3342 | #if EV_WALK_ENABLE |
|
|
3343 | void |
|
|
3344 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3345 | { |
|
|
3346 | int i, j; |
|
|
3347 | ev_watcher_list *wl, *wn; |
|
|
3348 | |
|
|
3349 | if (types & (EV_IO | EV_EMBED)) |
|
|
3350 | for (i = 0; i < anfdmax; ++i) |
|
|
3351 | for (wl = anfds [i].head; wl; ) |
|
|
3352 | { |
|
|
3353 | wn = wl->next; |
|
|
3354 | |
|
|
3355 | #if EV_EMBED_ENABLE |
|
|
3356 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3357 | { |
|
|
3358 | if (types & EV_EMBED) |
|
|
3359 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3360 | } |
|
|
3361 | else |
|
|
3362 | #endif |
|
|
3363 | #if EV_USE_INOTIFY |
|
|
3364 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3365 | ; |
|
|
3366 | else |
|
|
3367 | #endif |
|
|
3368 | if ((ev_io *)wl != &pipe_w) |
|
|
3369 | if (types & EV_IO) |
|
|
3370 | cb (EV_A_ EV_IO, wl); |
|
|
3371 | |
|
|
3372 | wl = wn; |
|
|
3373 | } |
|
|
3374 | |
|
|
3375 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3376 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3377 | #if EV_STAT_ENABLE |
|
|
3378 | /*TODO: timer is not always active*/ |
|
|
3379 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3380 | { |
|
|
3381 | if (types & EV_STAT) |
|
|
3382 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3383 | } |
|
|
3384 | else |
|
|
3385 | #endif |
|
|
3386 | if (types & EV_TIMER) |
|
|
3387 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3388 | |
|
|
3389 | #if EV_PERIODIC_ENABLE |
|
|
3390 | if (types & EV_PERIODIC) |
|
|
3391 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3392 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3393 | #endif |
|
|
3394 | |
|
|
3395 | #if EV_IDLE_ENABLE |
|
|
3396 | if (types & EV_IDLE) |
|
|
3397 | for (j = NUMPRI; i--; ) |
|
|
3398 | for (i = idlecnt [j]; i--; ) |
|
|
3399 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3400 | #endif |
|
|
3401 | |
|
|
3402 | #if EV_FORK_ENABLE |
|
|
3403 | if (types & EV_FORK) |
|
|
3404 | for (i = forkcnt; i--; ) |
|
|
3405 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3406 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3407 | #endif |
|
|
3408 | |
|
|
3409 | #if EV_ASYNC_ENABLE |
|
|
3410 | if (types & EV_ASYNC) |
|
|
3411 | for (i = asynccnt; i--; ) |
|
|
3412 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3413 | #endif |
|
|
3414 | |
|
|
3415 | if (types & EV_PREPARE) |
|
|
3416 | for (i = preparecnt; i--; ) |
|
|
3417 | #if EV_EMBED_ENABLE |
|
|
3418 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3419 | #endif |
|
|
3420 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3421 | |
|
|
3422 | if (types & EV_CHECK) |
|
|
3423 | for (i = checkcnt; i--; ) |
|
|
3424 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3425 | |
|
|
3426 | if (types & EV_SIGNAL) |
|
|
3427 | for (i = 0; i < signalmax; ++i) |
|
|
3428 | for (wl = signals [i].head; wl; ) |
|
|
3429 | { |
|
|
3430 | wn = wl->next; |
|
|
3431 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3432 | wl = wn; |
|
|
3433 | } |
|
|
3434 | |
|
|
3435 | if (types & EV_CHILD) |
|
|
3436 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3437 | for (wl = childs [i]; wl; ) |
|
|
3438 | { |
|
|
3439 | wn = wl->next; |
|
|
3440 | cb (EV_A_ EV_CHILD, wl); |
|
|
3441 | wl = wn; |
|
|
3442 | } |
|
|
3443 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3444 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3445 | } |
|
|
3446 | #endif |
|
|
3447 | |
3074 | #if EV_MULTIPLICITY |
3448 | #if EV_MULTIPLICITY |
3075 | #include "ev_wrap.h" |
3449 | #include "ev_wrap.h" |
3076 | #endif |
3450 | #endif |
3077 | |
3451 | |
3078 | #ifdef __cplusplus |
3452 | #ifdef __cplusplus |