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Comparing libev/ev.c (file contents):
Revision 1.278 by root, Tue Jan 6 19:46:56 2009 UTC vs.
Revision 1.337 by root, Wed Mar 10 09:18:24 2010 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010 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 *
… …
57# endif 57# endif
58# ifndef EV_USE_MONOTONIC 58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 59# define EV_USE_MONOTONIC 1
60# endif 60# endif
61# endif 61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
62# endif 64# endif
63 65
64# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
65# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
66# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
67# endif 69# endif
68# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
69# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
70# endif 72# endif
71# else 73# else
72# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
73# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
74# endif 76# endif
… …
108# define EV_USE_EPOLL 0 110# define EV_USE_EPOLL 0
109# endif 111# endif
110# endif 112# endif
111 113
112# ifndef EV_USE_KQUEUE 114# ifndef EV_USE_KQUEUE
113# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# define EV_USE_KQUEUE 1 116# define EV_USE_KQUEUE 1
115# else 117# else
116# define EV_USE_KQUEUE 0 118# define EV_USE_KQUEUE 0
117# endif 119# endif
118# endif 120# endif
… …
131# else 133# else
132# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
133# endif 135# endif
134# endif 136# endif
135 137
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1
141# else
142# define EV_USE_SIGNALFD 0
143# endif
144# endif
145
136# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
137# if HAVE_EVENTFD 147# if HAVE_EVENTFD
138# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD 1
139# else 149# else
140# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
… …
143 153
144#endif 154#endif
145 155
146#include <math.h> 156#include <math.h>
147#include <stdlib.h> 157#include <stdlib.h>
158#include <string.h>
148#include <fcntl.h> 159#include <fcntl.h>
149#include <stddef.h> 160#include <stddef.h>
150 161
151#include <stdio.h> 162#include <stdio.h>
152 163
153#include <assert.h> 164#include <assert.h>
154#include <errno.h> 165#include <errno.h>
155#include <sys/types.h> 166#include <sys/types.h>
156#include <time.h> 167#include <time.h>
168#include <limits.h>
157 169
158#include <signal.h> 170#include <signal.h>
159 171
160#ifdef EV_H 172#ifdef EV_H
161# include EV_H 173# include EV_H
… …
172# define WIN32_LEAN_AND_MEAN 184# define WIN32_LEAN_AND_MEAN
173# include <windows.h> 185# include <windows.h>
174# ifndef EV_SELECT_IS_WINSOCKET 186# ifndef EV_SELECT_IS_WINSOCKET
175# define EV_SELECT_IS_WINSOCKET 1 187# define EV_SELECT_IS_WINSOCKET 1
176# endif 188# endif
189# undef EV_AVOID_STDIO
177#endif 190#endif
178 191
179/* this block tries to deduce configuration from header-defined symbols and defaults */ 192/* this block tries to deduce configuration from header-defined symbols and defaults */
193
194/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG)
196/* use what's provided */
197#elif defined (NSIG)
198# define EV_NSIG (NSIG)
199#elif defined(_NSIG)
200# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX)
202# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX)
204# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX)
206# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE)
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else
216# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */
219# define EV_NSIG 65
220#endif
180 221
181#ifndef EV_USE_CLOCK_SYSCALL 222#ifndef EV_USE_CLOCK_SYSCALL
182# if __linux && __GLIBC__ >= 2 223# if __linux && __GLIBC__ >= 2
183# define EV_USE_CLOCK_SYSCALL 1 224# define EV_USE_CLOCK_SYSCALL 1
184# else 225# else
… …
193# define EV_USE_MONOTONIC 0 234# define EV_USE_MONOTONIC 0
194# endif 235# endif
195#endif 236#endif
196 237
197#ifndef EV_USE_REALTIME 238#ifndef EV_USE_REALTIME
198# define EV_USE_REALTIME 0 239# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
199#endif 240#endif
200 241
201#ifndef EV_USE_NANOSLEEP 242#ifndef EV_USE_NANOSLEEP
202# if _POSIX_C_SOURCE >= 199309L 243# if _POSIX_C_SOURCE >= 199309L
203# define EV_USE_NANOSLEEP 1 244# define EV_USE_NANOSLEEP 1
… …
264# else 305# else
265# define EV_USE_EVENTFD 0 306# define EV_USE_EVENTFD 0
266# endif 307# endif
267#endif 308#endif
268 309
310#ifndef EV_USE_SIGNALFD
311# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
312# define EV_USE_SIGNALFD 1
313# else
314# define EV_USE_SIGNALFD 0
315# endif
316#endif
317
269#if 0 /* debugging */ 318#if 0 /* debugging */
270# define EV_VERIFY 3 319# define EV_VERIFY 3
271# define EV_USE_4HEAP 1 320# define EV_USE_4HEAP 1
272# define EV_HEAP_CACHE_AT 1 321# define EV_HEAP_CACHE_AT 1
273#endif 322#endif
… …
282 331
283#ifndef EV_HEAP_CACHE_AT 332#ifndef EV_HEAP_CACHE_AT
284# define EV_HEAP_CACHE_AT !EV_MINIMAL 333# define EV_HEAP_CACHE_AT !EV_MINIMAL
285#endif 334#endif
286 335
336/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
337/* which makes programs even slower. might work on other unices, too. */
338#if EV_USE_CLOCK_SYSCALL
339# include <syscall.h>
340# ifdef SYS_clock_gettime
341# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
342# undef EV_USE_MONOTONIC
343# define EV_USE_MONOTONIC 1
344# else
345# undef EV_USE_CLOCK_SYSCALL
346# define EV_USE_CLOCK_SYSCALL 0
347# endif
348#endif
349
287/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 350/* this block fixes any misconfiguration where we know we run into trouble otherwise */
351
352#ifdef _AIX
353/* AIX has a completely broken poll.h header */
354# undef EV_USE_POLL
355# define EV_USE_POLL 0
356#endif
288 357
289#ifndef CLOCK_MONOTONIC 358#ifndef CLOCK_MONOTONIC
290# undef EV_USE_MONOTONIC 359# undef EV_USE_MONOTONIC
291# define EV_USE_MONOTONIC 0 360# define EV_USE_MONOTONIC 0
292#endif 361#endif
… …
320 389
321#if EV_SELECT_IS_WINSOCKET 390#if EV_SELECT_IS_WINSOCKET
322# include <winsock.h> 391# include <winsock.h>
323#endif 392#endif
324 393
325/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
326/* which makes programs even slower. might work on other unices, too. */
327#if EV_USE_CLOCK_SYSCALL
328# include <syscall.h>
329# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
330# undef EV_USE_MONOTONIC
331# define EV_USE_MONOTONIC 1
332#endif
333
334#if EV_USE_EVENTFD 394#if EV_USE_EVENTFD
335/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 395/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
336# include <stdint.h> 396# include <stdint.h>
397# ifndef EFD_NONBLOCK
398# define EFD_NONBLOCK O_NONBLOCK
399# endif
400# ifndef EFD_CLOEXEC
401# ifdef O_CLOEXEC
402# define EFD_CLOEXEC O_CLOEXEC
403# else
404# define EFD_CLOEXEC 02000000
405# endif
406# endif
337# ifdef __cplusplus 407# ifdef __cplusplus
338extern "C" { 408extern "C" {
339# endif 409# endif
340int eventfd (unsigned int initval, int flags); 410int (eventfd) (unsigned int initval, int flags);
341# ifdef __cplusplus 411# ifdef __cplusplus
342} 412}
343# endif 413# endif
344#endif 414#endif
415
416#if EV_USE_SIGNALFD
417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
418# include <stdint.h>
419# ifndef SFD_NONBLOCK
420# define SFD_NONBLOCK O_NONBLOCK
421# endif
422# ifndef SFD_CLOEXEC
423# ifdef O_CLOEXEC
424# define SFD_CLOEXEC O_CLOEXEC
425# else
426# define SFD_CLOEXEC 02000000
427# endif
428# endif
429# ifdef __cplusplus
430extern "C" {
431# endif
432int signalfd (int fd, const sigset_t *mask, int flags);
433
434struct signalfd_siginfo
435{
436 uint32_t ssi_signo;
437 char pad[128 - sizeof (uint32_t)];
438};
439# ifdef __cplusplus
440}
441# endif
442#endif
443
345 444
346/**/ 445/**/
347 446
348#if EV_VERIFY >= 3 447#if EV_VERIFY >= 3
349# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 448# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
… …
361 */ 460 */
362#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 461#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
363 462
364#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
365#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
366/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
367 465
368#if __GNUC__ >= 4 466#if __GNUC__ >= 4
369# define expect(expr,value) __builtin_expect ((expr),(value)) 467# define expect(expr,value) __builtin_expect ((expr),(value))
370# define noinline __attribute__ ((noinline)) 468# define noinline __attribute__ ((noinline))
371#else 469#else
… …
384# define inline_speed static noinline 482# define inline_speed static noinline
385#else 483#else
386# define inline_speed static inline 484# define inline_speed static inline
387#endif 485#endif
388 486
389#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 487#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
488
489#if EV_MINPRI == EV_MAXPRI
490# define ABSPRI(w) (((W)w), 0)
491#else
390#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 492# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
493#endif
391 494
392#define EMPTY /* required for microsofts broken pseudo-c compiler */ 495#define EMPTY /* required for microsofts broken pseudo-c compiler */
393#define EMPTY2(a,b) /* used to suppress some warnings */ 496#define EMPTY2(a,b) /* used to suppress some warnings */
394 497
395typedef ev_watcher *W; 498typedef ev_watcher *W;
… …
397typedef ev_watcher_time *WT; 500typedef ev_watcher_time *WT;
398 501
399#define ev_active(w) ((W)(w))->active 502#define ev_active(w) ((W)(w))->active
400#define ev_at(w) ((WT)(w))->at 503#define ev_at(w) ((WT)(w))->at
401 504
402#if EV_USE_MONOTONIC 505#if EV_USE_REALTIME
403/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 506/* sig_atomic_t is used to avoid per-thread variables or locking but still */
404/* giving it a reasonably high chance of working on typical architetcures */ 507/* giving it a reasonably high chance of working on typical architetcures */
508static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
509#endif
510
511#if EV_USE_MONOTONIC
405static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 512static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
513#endif
514
515#ifndef EV_FD_TO_WIN32_HANDLE
516# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
517#endif
518#ifndef EV_WIN32_HANDLE_TO_FD
519# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
520#endif
521#ifndef EV_WIN32_CLOSE_FD
522# define EV_WIN32_CLOSE_FD(fd) close (fd)
406#endif 523#endif
407 524
408#ifdef _WIN32 525#ifdef _WIN32
409# include "ev_win32.c" 526# include "ev_win32.c"
410#endif 527#endif
411 528
412/*****************************************************************************/ 529/*****************************************************************************/
530
531#if EV_AVOID_STDIO
532static void noinline
533ev_printerr (const char *msg)
534{
535 write (STDERR_FILENO, msg, strlen (msg));
536}
537#endif
413 538
414static void (*syserr_cb)(const char *msg); 539static void (*syserr_cb)(const char *msg);
415 540
416void 541void
417ev_set_syserr_cb (void (*cb)(const char *msg)) 542ev_set_syserr_cb (void (*cb)(const char *msg))
… …
427 552
428 if (syserr_cb) 553 if (syserr_cb)
429 syserr_cb (msg); 554 syserr_cb (msg);
430 else 555 else
431 { 556 {
557#if EV_AVOID_STDIO
558 const char *err = strerror (errno);
559
560 ev_printerr (msg);
561 ev_printerr (": ");
562 ev_printerr (err);
563 ev_printerr ("\n");
564#else
432 perror (msg); 565 perror (msg);
566#endif
433 abort (); 567 abort ();
434 } 568 }
435} 569}
436 570
437static void * 571static void *
438ev_realloc_emul (void *ptr, long size) 572ev_realloc_emul (void *ptr, long size)
439{ 573{
574#if __GLIBC__
575 return realloc (ptr, size);
576#else
440 /* some systems, notably openbsd and darwin, fail to properly 577 /* some systems, notably openbsd and darwin, fail to properly
441 * implement realloc (x, 0) (as required by both ansi c-98 and 578 * implement realloc (x, 0) (as required by both ansi c-89 and
442 * the single unix specification, so work around them here. 579 * the single unix specification, so work around them here.
443 */ 580 */
444 581
445 if (size) 582 if (size)
446 return realloc (ptr, size); 583 return realloc (ptr, size);
447 584
448 free (ptr); 585 free (ptr);
449 return 0; 586 return 0;
587#endif
450} 588}
451 589
452static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 590static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
453 591
454void 592void
… …
462{ 600{
463 ptr = alloc (ptr, size); 601 ptr = alloc (ptr, size);
464 602
465 if (!ptr && size) 603 if (!ptr && size)
466 { 604 {
605#if EV_AVOID_STDIO
606 ev_printerr ("libev: memory allocation failed, aborting.\n");
607#else
467 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 608 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
609#endif
468 abort (); 610 abort ();
469 } 611 }
470 612
471 return ptr; 613 return ptr;
472} 614}
… …
474#define ev_malloc(size) ev_realloc (0, (size)) 616#define ev_malloc(size) ev_realloc (0, (size))
475#define ev_free(ptr) ev_realloc ((ptr), 0) 617#define ev_free(ptr) ev_realloc ((ptr), 0)
476 618
477/*****************************************************************************/ 619/*****************************************************************************/
478 620
621/* set in reify when reification needed */
622#define EV_ANFD_REIFY 1
623
624/* file descriptor info structure */
479typedef struct 625typedef struct
480{ 626{
481 WL head; 627 WL head;
482 unsigned char events; 628 unsigned char events; /* the events watched for */
483 unsigned char reify; 629 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
484 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 630 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
485 unsigned char unused; 631 unsigned char unused;
486#if EV_USE_EPOLL 632#if EV_USE_EPOLL
487 unsigned int egen; /* generation counter to counter epoll bugs */ 633 unsigned int egen; /* generation counter to counter epoll bugs */
488#endif 634#endif
489#if EV_SELECT_IS_WINSOCKET 635#if EV_SELECT_IS_WINSOCKET
490 SOCKET handle; 636 SOCKET handle;
491#endif 637#endif
492} ANFD; 638} ANFD;
493 639
640/* stores the pending event set for a given watcher */
494typedef struct 641typedef struct
495{ 642{
496 W w; 643 W w;
497 int events; 644 int events; /* the pending event set for the given watcher */
498} ANPENDING; 645} ANPENDING;
499 646
500#if EV_USE_INOTIFY 647#if EV_USE_INOTIFY
501/* hash table entry per inotify-id */ 648/* hash table entry per inotify-id */
502typedef struct 649typedef struct
… …
505} ANFS; 652} ANFS;
506#endif 653#endif
507 654
508/* Heap Entry */ 655/* Heap Entry */
509#if EV_HEAP_CACHE_AT 656#if EV_HEAP_CACHE_AT
657 /* a heap element */
510 typedef struct { 658 typedef struct {
511 ev_tstamp at; 659 ev_tstamp at;
512 WT w; 660 WT w;
513 } ANHE; 661 } ANHE;
514 662
515 #define ANHE_w(he) (he).w /* access watcher, read-write */ 663 #define ANHE_w(he) (he).w /* access watcher, read-write */
516 #define ANHE_at(he) (he).at /* access cached at, read-only */ 664 #define ANHE_at(he) (he).at /* access cached at, read-only */
517 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 665 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
518#else 666#else
667 /* a heap element */
519 typedef WT ANHE; 668 typedef WT ANHE;
520 669
521 #define ANHE_w(he) (he) 670 #define ANHE_w(he) (he)
522 #define ANHE_at(he) (he)->at 671 #define ANHE_at(he) (he)->at
523 #define ANHE_at_cache(he) 672 #define ANHE_at_cache(he)
… …
547 696
548 static int ev_default_loop_ptr; 697 static int ev_default_loop_ptr;
549 698
550#endif 699#endif
551 700
701#if EV_MINIMAL < 2
702# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
703# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
704# define EV_INVOKE_PENDING invoke_cb (EV_A)
705#else
706# define EV_RELEASE_CB (void)0
707# define EV_ACQUIRE_CB (void)0
708# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
709#endif
710
711#define EVUNLOOP_RECURSE 0x80
712
552/*****************************************************************************/ 713/*****************************************************************************/
553 714
715#ifndef EV_HAVE_EV_TIME
554ev_tstamp 716ev_tstamp
555ev_time (void) 717ev_time (void)
556{ 718{
557#if EV_USE_REALTIME 719#if EV_USE_REALTIME
720 if (expect_true (have_realtime))
721 {
558 struct timespec ts; 722 struct timespec ts;
559 clock_gettime (CLOCK_REALTIME, &ts); 723 clock_gettime (CLOCK_REALTIME, &ts);
560 return ts.tv_sec + ts.tv_nsec * 1e-9; 724 return ts.tv_sec + ts.tv_nsec * 1e-9;
561#else 725 }
726#endif
727
562 struct timeval tv; 728 struct timeval tv;
563 gettimeofday (&tv, 0); 729 gettimeofday (&tv, 0);
564 return tv.tv_sec + tv.tv_usec * 1e-6; 730 return tv.tv_sec + tv.tv_usec * 1e-6;
565#endif
566} 731}
732#endif
567 733
568ev_tstamp inline_size 734inline_size ev_tstamp
569get_clock (void) 735get_clock (void)
570{ 736{
571#if EV_USE_MONOTONIC 737#if EV_USE_MONOTONIC
572 if (expect_true (have_monotonic)) 738 if (expect_true (have_monotonic))
573 { 739 {
… …
607 773
608 tv.tv_sec = (time_t)delay; 774 tv.tv_sec = (time_t)delay;
609 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 775 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
610 776
611 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 777 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
612 /* somehting nto guaranteed by newer posix versions, but guaranteed */ 778 /* something not guaranteed by newer posix versions, but guaranteed */
613 /* by older ones */ 779 /* by older ones */
614 select (0, 0, 0, 0, &tv); 780 select (0, 0, 0, 0, &tv);
615#endif 781#endif
616 } 782 }
617} 783}
618 784
619/*****************************************************************************/ 785/*****************************************************************************/
620 786
621#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 787#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
622 788
623int inline_size 789/* find a suitable new size for the given array, */
790/* hopefully by rounding to a ncie-to-malloc size */
791inline_size int
624array_nextsize (int elem, int cur, int cnt) 792array_nextsize (int elem, int cur, int cnt)
625{ 793{
626 int ncur = cur + 1; 794 int ncur = cur + 1;
627 795
628 do 796 do
… …
669 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 837 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
670 } 838 }
671#endif 839#endif
672 840
673#define array_free(stem, idx) \ 841#define array_free(stem, idx) \
674 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 842 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
675 843
676/*****************************************************************************/ 844/*****************************************************************************/
845
846/* dummy callback for pending events */
847static void noinline
848pendingcb (EV_P_ ev_prepare *w, int revents)
849{
850}
677 851
678void noinline 852void noinline
679ev_feed_event (EV_P_ void *w, int revents) 853ev_feed_event (EV_P_ void *w, int revents)
680{ 854{
681 W w_ = (W)w; 855 W w_ = (W)w;
… …
690 pendings [pri][w_->pending - 1].w = w_; 864 pendings [pri][w_->pending - 1].w = w_;
691 pendings [pri][w_->pending - 1].events = revents; 865 pendings [pri][w_->pending - 1].events = revents;
692 } 866 }
693} 867}
694 868
695void inline_speed 869inline_speed void
870feed_reverse (EV_P_ W w)
871{
872 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
873 rfeeds [rfeedcnt++] = w;
874}
875
876inline_size void
877feed_reverse_done (EV_P_ int revents)
878{
879 do
880 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
881 while (rfeedcnt);
882}
883
884inline_speed void
696queue_events (EV_P_ W *events, int eventcnt, int type) 885queue_events (EV_P_ W *events, int eventcnt, int type)
697{ 886{
698 int i; 887 int i;
699 888
700 for (i = 0; i < eventcnt; ++i) 889 for (i = 0; i < eventcnt; ++i)
701 ev_feed_event (EV_A_ events [i], type); 890 ev_feed_event (EV_A_ events [i], type);
702} 891}
703 892
704/*****************************************************************************/ 893/*****************************************************************************/
705 894
706void inline_speed 895inline_speed void
707fd_event (EV_P_ int fd, int revents) 896fd_event_nocheck (EV_P_ int fd, int revents)
708{ 897{
709 ANFD *anfd = anfds + fd; 898 ANFD *anfd = anfds + fd;
710 ev_io *w; 899 ev_io *w;
711 900
712 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 901 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
716 if (ev) 905 if (ev)
717 ev_feed_event (EV_A_ (W)w, ev); 906 ev_feed_event (EV_A_ (W)w, ev);
718 } 907 }
719} 908}
720 909
910/* do not submit kernel events for fds that have reify set */
911/* because that means they changed while we were polling for new events */
912inline_speed void
913fd_event (EV_P_ int fd, int revents)
914{
915 ANFD *anfd = anfds + fd;
916
917 if (expect_true (!anfd->reify))
918 fd_event_nocheck (EV_A_ fd, revents);
919}
920
721void 921void
722ev_feed_fd_event (EV_P_ int fd, int revents) 922ev_feed_fd_event (EV_P_ int fd, int revents)
723{ 923{
724 if (fd >= 0 && fd < anfdmax) 924 if (fd >= 0 && fd < anfdmax)
725 fd_event (EV_A_ fd, revents); 925 fd_event_nocheck (EV_A_ fd, revents);
726} 926}
727 927
728void inline_size 928/* make sure the external fd watch events are in-sync */
929/* with the kernel/libev internal state */
930inline_size void
729fd_reify (EV_P) 931fd_reify (EV_P)
730{ 932{
731 int i; 933 int i;
732 934
733 for (i = 0; i < fdchangecnt; ++i) 935 for (i = 0; i < fdchangecnt; ++i)
… …
743 945
744#if EV_SELECT_IS_WINSOCKET 946#if EV_SELECT_IS_WINSOCKET
745 if (events) 947 if (events)
746 { 948 {
747 unsigned long arg; 949 unsigned long arg;
748 #ifdef EV_FD_TO_WIN32_HANDLE
749 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 950 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
750 #else
751 anfd->handle = _get_osfhandle (fd);
752 #endif
753 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 951 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
754 } 952 }
755#endif 953#endif
756 954
757 { 955 {
… …
759 unsigned char o_reify = anfd->reify; 957 unsigned char o_reify = anfd->reify;
760 958
761 anfd->reify = 0; 959 anfd->reify = 0;
762 anfd->events = events; 960 anfd->events = events;
763 961
764 if (o_events != events || o_reify & EV_IOFDSET) 962 if (o_events != events || o_reify & EV__IOFDSET)
765 backend_modify (EV_A_ fd, o_events, events); 963 backend_modify (EV_A_ fd, o_events, events);
766 } 964 }
767 } 965 }
768 966
769 fdchangecnt = 0; 967 fdchangecnt = 0;
770} 968}
771 969
772void inline_size 970/* something about the given fd changed */
971inline_size void
773fd_change (EV_P_ int fd, int flags) 972fd_change (EV_P_ int fd, int flags)
774{ 973{
775 unsigned char reify = anfds [fd].reify; 974 unsigned char reify = anfds [fd].reify;
776 anfds [fd].reify |= flags; 975 anfds [fd].reify |= flags;
777 976
… …
781 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 980 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
782 fdchanges [fdchangecnt - 1] = fd; 981 fdchanges [fdchangecnt - 1] = fd;
783 } 982 }
784} 983}
785 984
786void inline_speed 985/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
986inline_speed void
787fd_kill (EV_P_ int fd) 987fd_kill (EV_P_ int fd)
788{ 988{
789 ev_io *w; 989 ev_io *w;
790 990
791 while ((w = (ev_io *)anfds [fd].head)) 991 while ((w = (ev_io *)anfds [fd].head))
… …
793 ev_io_stop (EV_A_ w); 993 ev_io_stop (EV_A_ w);
794 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 994 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
795 } 995 }
796} 996}
797 997
798int inline_size 998/* check whether the given fd is actually valid, for error recovery */
999inline_size int
799fd_valid (int fd) 1000fd_valid (int fd)
800{ 1001{
801#ifdef _WIN32 1002#ifdef _WIN32
802 return _get_osfhandle (fd) != -1; 1003 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
803#else 1004#else
804 return fcntl (fd, F_GETFD) != -1; 1005 return fcntl (fd, F_GETFD) != -1;
805#endif 1006#endif
806} 1007}
807 1008
… …
825 1026
826 for (fd = anfdmax; fd--; ) 1027 for (fd = anfdmax; fd--; )
827 if (anfds [fd].events) 1028 if (anfds [fd].events)
828 { 1029 {
829 fd_kill (EV_A_ fd); 1030 fd_kill (EV_A_ fd);
830 return; 1031 break;
831 } 1032 }
832} 1033}
833 1034
834/* usually called after fork if backend needs to re-arm all fds from scratch */ 1035/* usually called after fork if backend needs to re-arm all fds from scratch */
835static void noinline 1036static void noinline
… …
840 for (fd = 0; fd < anfdmax; ++fd) 1041 for (fd = 0; fd < anfdmax; ++fd)
841 if (anfds [fd].events) 1042 if (anfds [fd].events)
842 { 1043 {
843 anfds [fd].events = 0; 1044 anfds [fd].events = 0;
844 anfds [fd].emask = 0; 1045 anfds [fd].emask = 0;
845 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1046 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
846 } 1047 }
1048}
1049
1050/* used to prepare libev internal fd's */
1051/* this is not fork-safe */
1052inline_speed void
1053fd_intern (int fd)
1054{
1055#ifdef _WIN32
1056 unsigned long arg = 1;
1057 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1058#else
1059 fcntl (fd, F_SETFD, FD_CLOEXEC);
1060 fcntl (fd, F_SETFL, O_NONBLOCK);
1061#endif
847} 1062}
848 1063
849/*****************************************************************************/ 1064/*****************************************************************************/
850 1065
851/* 1066/*
… …
866#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1081#define HEAP0 (DHEAP - 1) /* index of first element in heap */
867#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1082#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
868#define UPHEAP_DONE(p,k) ((p) == (k)) 1083#define UPHEAP_DONE(p,k) ((p) == (k))
869 1084
870/* away from the root */ 1085/* away from the root */
871void inline_speed 1086inline_speed void
872downheap (ANHE *heap, int N, int k) 1087downheap (ANHE *heap, int N, int k)
873{ 1088{
874 ANHE he = heap [k]; 1089 ANHE he = heap [k];
875 ANHE *E = heap + N + HEAP0; 1090 ANHE *E = heap + N + HEAP0;
876 1091
… …
916#define HEAP0 1 1131#define HEAP0 1
917#define HPARENT(k) ((k) >> 1) 1132#define HPARENT(k) ((k) >> 1)
918#define UPHEAP_DONE(p,k) (!(p)) 1133#define UPHEAP_DONE(p,k) (!(p))
919 1134
920/* away from the root */ 1135/* away from the root */
921void inline_speed 1136inline_speed void
922downheap (ANHE *heap, int N, int k) 1137downheap (ANHE *heap, int N, int k)
923{ 1138{
924 ANHE he = heap [k]; 1139 ANHE he = heap [k];
925 1140
926 for (;;) 1141 for (;;)
927 { 1142 {
928 int c = k << 1; 1143 int c = k << 1;
929 1144
930 if (c > N + HEAP0 - 1) 1145 if (c >= N + HEAP0)
931 break; 1146 break;
932 1147
933 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1148 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
934 ? 1 : 0; 1149 ? 1 : 0;
935 1150
… …
946 ev_active (ANHE_w (he)) = k; 1161 ev_active (ANHE_w (he)) = k;
947} 1162}
948#endif 1163#endif
949 1164
950/* towards the root */ 1165/* towards the root */
951void inline_speed 1166inline_speed void
952upheap (ANHE *heap, int k) 1167upheap (ANHE *heap, int k)
953{ 1168{
954 ANHE he = heap [k]; 1169 ANHE he = heap [k];
955 1170
956 for (;;) 1171 for (;;)
… …
967 1182
968 heap [k] = he; 1183 heap [k] = he;
969 ev_active (ANHE_w (he)) = k; 1184 ev_active (ANHE_w (he)) = k;
970} 1185}
971 1186
972void inline_size 1187/* move an element suitably so it is in a correct place */
1188inline_size void
973adjustheap (ANHE *heap, int N, int k) 1189adjustheap (ANHE *heap, int N, int k)
974{ 1190{
975 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1191 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
976 upheap (heap, k); 1192 upheap (heap, k);
977 else 1193 else
978 downheap (heap, N, k); 1194 downheap (heap, N, k);
979} 1195}
980 1196
981/* rebuild the heap: this function is used only once and executed rarely */ 1197/* rebuild the heap: this function is used only once and executed rarely */
982void inline_size 1198inline_size void
983reheap (ANHE *heap, int N) 1199reheap (ANHE *heap, int N)
984{ 1200{
985 int i; 1201 int i;
986 1202
987 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1203 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
… …
990 upheap (heap, i + HEAP0); 1206 upheap (heap, i + HEAP0);
991} 1207}
992 1208
993/*****************************************************************************/ 1209/*****************************************************************************/
994 1210
1211/* associate signal watchers to a signal signal */
995typedef struct 1212typedef struct
996{ 1213{
1214 EV_ATOMIC_T pending;
1215#if EV_MULTIPLICITY
1216 EV_P;
1217#endif
997 WL head; 1218 WL head;
998 EV_ATOMIC_T gotsig;
999} ANSIG; 1219} ANSIG;
1000 1220
1001static ANSIG *signals; 1221static ANSIG signals [EV_NSIG - 1];
1002static int signalmax;
1003
1004static EV_ATOMIC_T gotsig;
1005 1222
1006/*****************************************************************************/ 1223/*****************************************************************************/
1007 1224
1008void inline_speed 1225#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1009fd_intern (int fd)
1010{
1011#ifdef _WIN32
1012 unsigned long arg = 1;
1013 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1014#else
1015 fcntl (fd, F_SETFD, FD_CLOEXEC);
1016 fcntl (fd, F_SETFL, O_NONBLOCK);
1017#endif
1018}
1019 1226
1020static void noinline 1227static void noinline
1021evpipe_init (EV_P) 1228evpipe_init (EV_P)
1022{ 1229{
1023 if (!ev_is_active (&pipeev)) 1230 if (!ev_is_active (&pipe_w))
1024 { 1231 {
1025#if EV_USE_EVENTFD 1232# if EV_USE_EVENTFD
1233 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1234 if (evfd < 0 && errno == EINVAL)
1026 if ((evfd = eventfd (0, 0)) >= 0) 1235 evfd = eventfd (0, 0);
1236
1237 if (evfd >= 0)
1027 { 1238 {
1028 evpipe [0] = -1; 1239 evpipe [0] = -1;
1029 fd_intern (evfd); 1240 fd_intern (evfd); /* doing it twice doesn't hurt */
1030 ev_io_set (&pipeev, evfd, EV_READ); 1241 ev_io_set (&pipe_w, evfd, EV_READ);
1031 } 1242 }
1032 else 1243 else
1033#endif 1244# endif
1034 { 1245 {
1035 while (pipe (evpipe)) 1246 while (pipe (evpipe))
1036 ev_syserr ("(libev) error creating signal/async pipe"); 1247 ev_syserr ("(libev) error creating signal/async pipe");
1037 1248
1038 fd_intern (evpipe [0]); 1249 fd_intern (evpipe [0]);
1039 fd_intern (evpipe [1]); 1250 fd_intern (evpipe [1]);
1040 ev_io_set (&pipeev, evpipe [0], EV_READ); 1251 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1041 } 1252 }
1042 1253
1043 ev_io_start (EV_A_ &pipeev); 1254 ev_io_start (EV_A_ &pipe_w);
1044 ev_unref (EV_A); /* watcher should not keep loop alive */ 1255 ev_unref (EV_A); /* watcher should not keep loop alive */
1045 } 1256 }
1046} 1257}
1047 1258
1048void inline_size 1259inline_size void
1049evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1260evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1050{ 1261{
1051 if (!*flag) 1262 if (!*flag)
1052 { 1263 {
1053 int old_errno = errno; /* save errno because write might clobber it */ 1264 int old_errno = errno; /* save errno because write might clobber it */
1265 char dummy;
1054 1266
1055 *flag = 1; 1267 *flag = 1;
1056 1268
1057#if EV_USE_EVENTFD 1269#if EV_USE_EVENTFD
1058 if (evfd >= 0) 1270 if (evfd >= 0)
… …
1060 uint64_t counter = 1; 1272 uint64_t counter = 1;
1061 write (evfd, &counter, sizeof (uint64_t)); 1273 write (evfd, &counter, sizeof (uint64_t));
1062 } 1274 }
1063 else 1275 else
1064#endif 1276#endif
1065 write (evpipe [1], &old_errno, 1); 1277 write (evpipe [1], &dummy, 1);
1066 1278
1067 errno = old_errno; 1279 errno = old_errno;
1068 } 1280 }
1069} 1281}
1070 1282
1283/* called whenever the libev signal pipe */
1284/* got some events (signal, async) */
1071static void 1285static void
1072pipecb (EV_P_ ev_io *iow, int revents) 1286pipecb (EV_P_ ev_io *iow, int revents)
1073{ 1287{
1288 int i;
1289
1074#if EV_USE_EVENTFD 1290#if EV_USE_EVENTFD
1075 if (evfd >= 0) 1291 if (evfd >= 0)
1076 { 1292 {
1077 uint64_t counter; 1293 uint64_t counter;
1078 read (evfd, &counter, sizeof (uint64_t)); 1294 read (evfd, &counter, sizeof (uint64_t));
… …
1082 { 1298 {
1083 char dummy; 1299 char dummy;
1084 read (evpipe [0], &dummy, 1); 1300 read (evpipe [0], &dummy, 1);
1085 } 1301 }
1086 1302
1087 if (gotsig && ev_is_default_loop (EV_A)) 1303 if (sig_pending)
1088 { 1304 {
1089 int signum; 1305 sig_pending = 0;
1090 gotsig = 0;
1091 1306
1092 for (signum = signalmax; signum--; ) 1307 for (i = EV_NSIG - 1; i--; )
1093 if (signals [signum].gotsig) 1308 if (expect_false (signals [i].pending))
1094 ev_feed_signal_event (EV_A_ signum + 1); 1309 ev_feed_signal_event (EV_A_ i + 1);
1095 } 1310 }
1096 1311
1097#if EV_ASYNC_ENABLE 1312#if EV_ASYNC_ENABLE
1098 if (gotasync) 1313 if (async_pending)
1099 { 1314 {
1100 int i; 1315 async_pending = 0;
1101 gotasync = 0;
1102 1316
1103 for (i = asynccnt; i--; ) 1317 for (i = asynccnt; i--; )
1104 if (asyncs [i]->sent) 1318 if (asyncs [i]->sent)
1105 { 1319 {
1106 asyncs [i]->sent = 0; 1320 asyncs [i]->sent = 0;
… …
1114 1328
1115static void 1329static void
1116ev_sighandler (int signum) 1330ev_sighandler (int signum)
1117{ 1331{
1118#if EV_MULTIPLICITY 1332#if EV_MULTIPLICITY
1119 struct ev_loop *loop = &default_loop_struct; 1333 EV_P = signals [signum - 1].loop;
1120#endif 1334#endif
1121 1335
1122#if _WIN32 1336#ifdef _WIN32
1123 signal (signum, ev_sighandler); 1337 signal (signum, ev_sighandler);
1124#endif 1338#endif
1125 1339
1126 signals [signum - 1].gotsig = 1; 1340 signals [signum - 1].pending = 1;
1127 evpipe_write (EV_A_ &gotsig); 1341 evpipe_write (EV_A_ &sig_pending);
1128} 1342}
1129 1343
1130void noinline 1344void noinline
1131ev_feed_signal_event (EV_P_ int signum) 1345ev_feed_signal_event (EV_P_ int signum)
1132{ 1346{
1133 WL w; 1347 WL w;
1134 1348
1349 if (expect_false (signum <= 0 || signum > EV_NSIG))
1350 return;
1351
1352 --signum;
1353
1135#if EV_MULTIPLICITY 1354#if EV_MULTIPLICITY
1136 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1355 /* it is permissible to try to feed a signal to the wrong loop */
1137#endif 1356 /* or, likely more useful, feeding a signal nobody is waiting for */
1138 1357
1139 --signum; 1358 if (expect_false (signals [signum].loop != EV_A))
1140
1141 if (signum < 0 || signum >= signalmax)
1142 return; 1359 return;
1360#endif
1143 1361
1144 signals [signum].gotsig = 0; 1362 signals [signum].pending = 0;
1145 1363
1146 for (w = signals [signum].head; w; w = w->next) 1364 for (w = signals [signum].head; w; w = w->next)
1147 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1365 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1148} 1366}
1149 1367
1368#if EV_USE_SIGNALFD
1369static void
1370sigfdcb (EV_P_ ev_io *iow, int revents)
1371{
1372 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1373
1374 for (;;)
1375 {
1376 ssize_t res = read (sigfd, si, sizeof (si));
1377
1378 /* not ISO-C, as res might be -1, but works with SuS */
1379 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1380 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1381
1382 if (res < (ssize_t)sizeof (si))
1383 break;
1384 }
1385}
1386#endif
1387
1388#endif
1389
1150/*****************************************************************************/ 1390/*****************************************************************************/
1151 1391
1392#if EV_CHILD_ENABLE
1152static WL childs [EV_PID_HASHSIZE]; 1393static WL childs [EV_PID_HASHSIZE];
1153
1154#ifndef _WIN32
1155 1394
1156static ev_signal childev; 1395static ev_signal childev;
1157 1396
1158#ifndef WIFCONTINUED 1397#ifndef WIFCONTINUED
1159# define WIFCONTINUED(status) 0 1398# define WIFCONTINUED(status) 0
1160#endif 1399#endif
1161 1400
1162void inline_speed 1401/* handle a single child status event */
1402inline_speed void
1163child_reap (EV_P_ int chain, int pid, int status) 1403child_reap (EV_P_ int chain, int pid, int status)
1164{ 1404{
1165 ev_child *w; 1405 ev_child *w;
1166 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1406 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1167 1407
… …
1180 1420
1181#ifndef WCONTINUED 1421#ifndef WCONTINUED
1182# define WCONTINUED 0 1422# define WCONTINUED 0
1183#endif 1423#endif
1184 1424
1425/* called on sigchld etc., calls waitpid */
1185static void 1426static void
1186childcb (EV_P_ ev_signal *sw, int revents) 1427childcb (EV_P_ ev_signal *sw, int revents)
1187{ 1428{
1188 int pid, status; 1429 int pid, status;
1189 1430
… …
1296ev_backend (EV_P) 1537ev_backend (EV_P)
1297{ 1538{
1298 return backend; 1539 return backend;
1299} 1540}
1300 1541
1542#if EV_MINIMAL < 2
1301unsigned int 1543unsigned int
1302ev_loop_count (EV_P) 1544ev_loop_count (EV_P)
1303{ 1545{
1304 return loop_count; 1546 return loop_count;
1305} 1547}
1306 1548
1549unsigned int
1550ev_loop_depth (EV_P)
1551{
1552 return loop_depth;
1553}
1554
1307void 1555void
1308ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1556ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1309{ 1557{
1310 io_blocktime = interval; 1558 io_blocktime = interval;
1311} 1559}
… …
1314ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1562ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1315{ 1563{
1316 timeout_blocktime = interval; 1564 timeout_blocktime = interval;
1317} 1565}
1318 1566
1567void
1568ev_set_userdata (EV_P_ void *data)
1569{
1570 userdata = data;
1571}
1572
1573void *
1574ev_userdata (EV_P)
1575{
1576 return userdata;
1577}
1578
1579void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1580{
1581 invoke_cb = invoke_pending_cb;
1582}
1583
1584void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1585{
1586 release_cb = release;
1587 acquire_cb = acquire;
1588}
1589#endif
1590
1591/* initialise a loop structure, must be zero-initialised */
1319static void noinline 1592static void noinline
1320loop_init (EV_P_ unsigned int flags) 1593loop_init (EV_P_ unsigned int flags)
1321{ 1594{
1322 if (!backend) 1595 if (!backend)
1323 { 1596 {
1597#if EV_USE_REALTIME
1598 if (!have_realtime)
1599 {
1600 struct timespec ts;
1601
1602 if (!clock_gettime (CLOCK_REALTIME, &ts))
1603 have_realtime = 1;
1604 }
1605#endif
1606
1324#if EV_USE_MONOTONIC 1607#if EV_USE_MONOTONIC
1608 if (!have_monotonic)
1325 { 1609 {
1326 struct timespec ts; 1610 struct timespec ts;
1611
1327 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1612 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1328 have_monotonic = 1; 1613 have_monotonic = 1;
1329 } 1614 }
1330#endif 1615#endif
1616
1617 /* pid check not overridable via env */
1618#ifndef _WIN32
1619 if (flags & EVFLAG_FORKCHECK)
1620 curpid = getpid ();
1621#endif
1622
1623 if (!(flags & EVFLAG_NOENV)
1624 && !enable_secure ()
1625 && getenv ("LIBEV_FLAGS"))
1626 flags = atoi (getenv ("LIBEV_FLAGS"));
1331 1627
1332 ev_rt_now = ev_time (); 1628 ev_rt_now = ev_time ();
1333 mn_now = get_clock (); 1629 mn_now = get_clock ();
1334 now_floor = mn_now; 1630 now_floor = mn_now;
1335 rtmn_diff = ev_rt_now - mn_now; 1631 rtmn_diff = ev_rt_now - mn_now;
1632#if EV_MINIMAL < 2
1633 invoke_cb = ev_invoke_pending;
1634#endif
1336 1635
1337 io_blocktime = 0.; 1636 io_blocktime = 0.;
1338 timeout_blocktime = 0.; 1637 timeout_blocktime = 0.;
1339 backend = 0; 1638 backend = 0;
1340 backend_fd = -1; 1639 backend_fd = -1;
1341 gotasync = 0; 1640 sig_pending = 0;
1641#if EV_ASYNC_ENABLE
1642 async_pending = 0;
1643#endif
1342#if EV_USE_INOTIFY 1644#if EV_USE_INOTIFY
1343 fs_fd = -2; 1645 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1344#endif 1646#endif
1345 1647#if EV_USE_SIGNALFD
1346 /* pid check not overridable via env */ 1648 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1347#ifndef _WIN32
1348 if (flags & EVFLAG_FORKCHECK)
1349 curpid = getpid ();
1350#endif 1649#endif
1351
1352 if (!(flags & EVFLAG_NOENV)
1353 && !enable_secure ()
1354 && getenv ("LIBEV_FLAGS"))
1355 flags = atoi (getenv ("LIBEV_FLAGS"));
1356 1650
1357 if (!(flags & 0x0000ffffU)) 1651 if (!(flags & 0x0000ffffU))
1358 flags |= ev_recommended_backends (); 1652 flags |= ev_recommended_backends ();
1359 1653
1360#if EV_USE_PORT 1654#if EV_USE_PORT
… …
1371#endif 1665#endif
1372#if EV_USE_SELECT 1666#if EV_USE_SELECT
1373 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1667 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1374#endif 1668#endif
1375 1669
1670 ev_prepare_init (&pending_w, pendingcb);
1671
1672#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1376 ev_init (&pipeev, pipecb); 1673 ev_init (&pipe_w, pipecb);
1377 ev_set_priority (&pipeev, EV_MAXPRI); 1674 ev_set_priority (&pipe_w, EV_MAXPRI);
1675#endif
1378 } 1676 }
1379} 1677}
1380 1678
1679/* free up a loop structure */
1381static void noinline 1680static void noinline
1382loop_destroy (EV_P) 1681loop_destroy (EV_P)
1383{ 1682{
1384 int i; 1683 int i;
1385 1684
1386 if (ev_is_active (&pipeev)) 1685 if (ev_is_active (&pipe_w))
1387 { 1686 {
1388 ev_ref (EV_A); /* signal watcher */ 1687 /*ev_ref (EV_A);*/
1389 ev_io_stop (EV_A_ &pipeev); 1688 /*ev_io_stop (EV_A_ &pipe_w);*/
1390 1689
1391#if EV_USE_EVENTFD 1690#if EV_USE_EVENTFD
1392 if (evfd >= 0) 1691 if (evfd >= 0)
1393 close (evfd); 1692 close (evfd);
1394#endif 1693#endif
1395 1694
1396 if (evpipe [0] >= 0) 1695 if (evpipe [0] >= 0)
1397 { 1696 {
1398 close (evpipe [0]); 1697 EV_WIN32_CLOSE_FD (evpipe [0]);
1399 close (evpipe [1]); 1698 EV_WIN32_CLOSE_FD (evpipe [1]);
1400 } 1699 }
1401 } 1700 }
1701
1702#if EV_USE_SIGNALFD
1703 if (ev_is_active (&sigfd_w))
1704 close (sigfd);
1705#endif
1402 1706
1403#if EV_USE_INOTIFY 1707#if EV_USE_INOTIFY
1404 if (fs_fd >= 0) 1708 if (fs_fd >= 0)
1405 close (fs_fd); 1709 close (fs_fd);
1406#endif 1710#endif
… …
1430#if EV_IDLE_ENABLE 1734#if EV_IDLE_ENABLE
1431 array_free (idle, [i]); 1735 array_free (idle, [i]);
1432#endif 1736#endif
1433 } 1737 }
1434 1738
1435 ev_free (anfds); anfdmax = 0; 1739 ev_free (anfds); anfds = 0; anfdmax = 0;
1436 1740
1437 /* have to use the microsoft-never-gets-it-right macro */ 1741 /* have to use the microsoft-never-gets-it-right macro */
1742 array_free (rfeed, EMPTY);
1438 array_free (fdchange, EMPTY); 1743 array_free (fdchange, EMPTY);
1439 array_free (timer, EMPTY); 1744 array_free (timer, EMPTY);
1440#if EV_PERIODIC_ENABLE 1745#if EV_PERIODIC_ENABLE
1441 array_free (periodic, EMPTY); 1746 array_free (periodic, EMPTY);
1442#endif 1747#endif
… …
1451 1756
1452 backend = 0; 1757 backend = 0;
1453} 1758}
1454 1759
1455#if EV_USE_INOTIFY 1760#if EV_USE_INOTIFY
1456void inline_size infy_fork (EV_P); 1761inline_size void infy_fork (EV_P);
1457#endif 1762#endif
1458 1763
1459void inline_size 1764inline_size void
1460loop_fork (EV_P) 1765loop_fork (EV_P)
1461{ 1766{
1462#if EV_USE_PORT 1767#if EV_USE_PORT
1463 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1768 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1464#endif 1769#endif
… …
1470#endif 1775#endif
1471#if EV_USE_INOTIFY 1776#if EV_USE_INOTIFY
1472 infy_fork (EV_A); 1777 infy_fork (EV_A);
1473#endif 1778#endif
1474 1779
1475 if (ev_is_active (&pipeev)) 1780 if (ev_is_active (&pipe_w))
1476 { 1781 {
1477 /* this "locks" the handlers against writing to the pipe */ 1782 /* this "locks" the handlers against writing to the pipe */
1478 /* while we modify the fd vars */ 1783 /* while we modify the fd vars */
1479 gotsig = 1; 1784 sig_pending = 1;
1480#if EV_ASYNC_ENABLE 1785#if EV_ASYNC_ENABLE
1481 gotasync = 1; 1786 async_pending = 1;
1482#endif 1787#endif
1483 1788
1484 ev_ref (EV_A); 1789 ev_ref (EV_A);
1485 ev_io_stop (EV_A_ &pipeev); 1790 ev_io_stop (EV_A_ &pipe_w);
1486 1791
1487#if EV_USE_EVENTFD 1792#if EV_USE_EVENTFD
1488 if (evfd >= 0) 1793 if (evfd >= 0)
1489 close (evfd); 1794 close (evfd);
1490#endif 1795#endif
1491 1796
1492 if (evpipe [0] >= 0) 1797 if (evpipe [0] >= 0)
1493 { 1798 {
1494 close (evpipe [0]); 1799 EV_WIN32_CLOSE_FD (evpipe [0]);
1495 close (evpipe [1]); 1800 EV_WIN32_CLOSE_FD (evpipe [1]);
1496 } 1801 }
1497 1802
1803#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1498 evpipe_init (EV_A); 1804 evpipe_init (EV_A);
1499 /* now iterate over everything, in case we missed something */ 1805 /* now iterate over everything, in case we missed something */
1500 pipecb (EV_A_ &pipeev, EV_READ); 1806 pipecb (EV_A_ &pipe_w, EV_READ);
1807#endif
1501 } 1808 }
1502 1809
1503 postfork = 0; 1810 postfork = 0;
1504} 1811}
1505 1812
1506#if EV_MULTIPLICITY 1813#if EV_MULTIPLICITY
1507 1814
1508struct ev_loop * 1815struct ev_loop *
1509ev_loop_new (unsigned int flags) 1816ev_loop_new (unsigned int flags)
1510{ 1817{
1511 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1818 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1512 1819
1513 memset (loop, 0, sizeof (struct ev_loop)); 1820 memset (EV_A, 0, sizeof (struct ev_loop));
1514
1515 loop_init (EV_A_ flags); 1821 loop_init (EV_A_ flags);
1516 1822
1517 if (ev_backend (EV_A)) 1823 if (ev_backend (EV_A))
1518 return loop; 1824 return EV_A;
1519 1825
1520 return 0; 1826 return 0;
1521} 1827}
1522 1828
1523void 1829void
… …
1530void 1836void
1531ev_loop_fork (EV_P) 1837ev_loop_fork (EV_P)
1532{ 1838{
1533 postfork = 1; /* must be in line with ev_default_fork */ 1839 postfork = 1; /* must be in line with ev_default_fork */
1534} 1840}
1841#endif /* multiplicity */
1535 1842
1536#if EV_VERIFY 1843#if EV_VERIFY
1537static void noinline 1844static void noinline
1538verify_watcher (EV_P_ W w) 1845verify_watcher (EV_P_ W w)
1539{ 1846{
… …
1567 verify_watcher (EV_A_ ws [cnt]); 1874 verify_watcher (EV_A_ ws [cnt]);
1568 } 1875 }
1569} 1876}
1570#endif 1877#endif
1571 1878
1879#if EV_MINIMAL < 2
1572void 1880void
1573ev_loop_verify (EV_P) 1881ev_loop_verify (EV_P)
1574{ 1882{
1575#if EV_VERIFY 1883#if EV_VERIFY
1576 int i; 1884 int i;
… …
1617#if EV_ASYNC_ENABLE 1925#if EV_ASYNC_ENABLE
1618 assert (asyncmax >= asynccnt); 1926 assert (asyncmax >= asynccnt);
1619 array_verify (EV_A_ (W *)asyncs, asynccnt); 1927 array_verify (EV_A_ (W *)asyncs, asynccnt);
1620#endif 1928#endif
1621 1929
1930#if EV_PREPARE_ENABLE
1622 assert (preparemax >= preparecnt); 1931 assert (preparemax >= preparecnt);
1623 array_verify (EV_A_ (W *)prepares, preparecnt); 1932 array_verify (EV_A_ (W *)prepares, preparecnt);
1933#endif
1624 1934
1935#if EV_CHECK_ENABLE
1625 assert (checkmax >= checkcnt); 1936 assert (checkmax >= checkcnt);
1626 array_verify (EV_A_ (W *)checks, checkcnt); 1937 array_verify (EV_A_ (W *)checks, checkcnt);
1938#endif
1627 1939
1628# if 0 1940# if 0
1941#if EV_CHILD_ENABLE
1629 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1942 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1630 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1943 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1631# endif 1944#endif
1632#endif 1945# endif
1946#endif
1633} 1947}
1634 1948#endif
1635#endif /* multiplicity */
1636 1949
1637#if EV_MULTIPLICITY 1950#if EV_MULTIPLICITY
1638struct ev_loop * 1951struct ev_loop *
1639ev_default_loop_init (unsigned int flags) 1952ev_default_loop_init (unsigned int flags)
1640#else 1953#else
… …
1643#endif 1956#endif
1644{ 1957{
1645 if (!ev_default_loop_ptr) 1958 if (!ev_default_loop_ptr)
1646 { 1959 {
1647#if EV_MULTIPLICITY 1960#if EV_MULTIPLICITY
1648 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1961 EV_P = ev_default_loop_ptr = &default_loop_struct;
1649#else 1962#else
1650 ev_default_loop_ptr = 1; 1963 ev_default_loop_ptr = 1;
1651#endif 1964#endif
1652 1965
1653 loop_init (EV_A_ flags); 1966 loop_init (EV_A_ flags);
1654 1967
1655 if (ev_backend (EV_A)) 1968 if (ev_backend (EV_A))
1656 { 1969 {
1657#ifndef _WIN32 1970#if EV_CHILD_ENABLE
1658 ev_signal_init (&childev, childcb, SIGCHLD); 1971 ev_signal_init (&childev, childcb, SIGCHLD);
1659 ev_set_priority (&childev, EV_MAXPRI); 1972 ev_set_priority (&childev, EV_MAXPRI);
1660 ev_signal_start (EV_A_ &childev); 1973 ev_signal_start (EV_A_ &childev);
1661 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1974 ev_unref (EV_A); /* child watcher should not keep loop alive */
1662#endif 1975#endif
… …
1670 1983
1671void 1984void
1672ev_default_destroy (void) 1985ev_default_destroy (void)
1673{ 1986{
1674#if EV_MULTIPLICITY 1987#if EV_MULTIPLICITY
1675 struct ev_loop *loop = ev_default_loop_ptr; 1988 EV_P = ev_default_loop_ptr;
1676#endif 1989#endif
1677 1990
1678 ev_default_loop_ptr = 0; 1991 ev_default_loop_ptr = 0;
1679 1992
1680#ifndef _WIN32 1993#if EV_CHILD_ENABLE
1681 ev_ref (EV_A); /* child watcher */ 1994 ev_ref (EV_A); /* child watcher */
1682 ev_signal_stop (EV_A_ &childev); 1995 ev_signal_stop (EV_A_ &childev);
1683#endif 1996#endif
1684 1997
1685 loop_destroy (EV_A); 1998 loop_destroy (EV_A);
… …
1687 2000
1688void 2001void
1689ev_default_fork (void) 2002ev_default_fork (void)
1690{ 2003{
1691#if EV_MULTIPLICITY 2004#if EV_MULTIPLICITY
1692 struct ev_loop *loop = ev_default_loop_ptr; 2005 EV_P = ev_default_loop_ptr;
1693#endif 2006#endif
1694 2007
1695 postfork = 1; /* must be in line with ev_loop_fork */ 2008 postfork = 1; /* must be in line with ev_loop_fork */
1696} 2009}
1697 2010
… …
1701ev_invoke (EV_P_ void *w, int revents) 2014ev_invoke (EV_P_ void *w, int revents)
1702{ 2015{
1703 EV_CB_INVOKE ((W)w, revents); 2016 EV_CB_INVOKE ((W)w, revents);
1704} 2017}
1705 2018
1706void inline_speed 2019unsigned int
1707call_pending (EV_P) 2020ev_pending_count (EV_P)
2021{
2022 int pri;
2023 unsigned int count = 0;
2024
2025 for (pri = NUMPRI; pri--; )
2026 count += pendingcnt [pri];
2027
2028 return count;
2029}
2030
2031void noinline
2032ev_invoke_pending (EV_P)
1708{ 2033{
1709 int pri; 2034 int pri;
1710 2035
1711 for (pri = NUMPRI; pri--; ) 2036 for (pri = NUMPRI; pri--; )
1712 while (pendingcnt [pri]) 2037 while (pendingcnt [pri])
1713 { 2038 {
1714 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2039 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1715 2040
1716 if (expect_true (p->w))
1717 {
1718 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ 2041 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2042 /* ^ this is no longer true, as pending_w could be here */
1719 2043
1720 p->w->pending = 0; 2044 p->w->pending = 0;
1721 EV_CB_INVOKE (p->w, p->events); 2045 EV_CB_INVOKE (p->w, p->events);
1722 EV_FREQUENT_CHECK; 2046 EV_FREQUENT_CHECK;
1723 }
1724 } 2047 }
1725} 2048}
1726 2049
1727#if EV_IDLE_ENABLE 2050#if EV_IDLE_ENABLE
1728void inline_size 2051/* make idle watchers pending. this handles the "call-idle */
2052/* only when higher priorities are idle" logic */
2053inline_size void
1729idle_reify (EV_P) 2054idle_reify (EV_P)
1730{ 2055{
1731 if (expect_false (idleall)) 2056 if (expect_false (idleall))
1732 { 2057 {
1733 int pri; 2058 int pri;
… …
1745 } 2070 }
1746 } 2071 }
1747} 2072}
1748#endif 2073#endif
1749 2074
1750void inline_size 2075/* make timers pending */
2076inline_size void
1751timers_reify (EV_P) 2077timers_reify (EV_P)
1752{ 2078{
1753 EV_FREQUENT_CHECK; 2079 EV_FREQUENT_CHECK;
1754 2080
1755 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2081 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1756 { 2082 {
1757 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2083 do
1758
1759 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
1760
1761 /* first reschedule or stop timer */
1762 if (w->repeat)
1763 { 2084 {
2085 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2086
2087 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2088
2089 /* first reschedule or stop timer */
2090 if (w->repeat)
2091 {
1764 ev_at (w) += w->repeat; 2092 ev_at (w) += w->repeat;
1765 if (ev_at (w) < mn_now) 2093 if (ev_at (w) < mn_now)
1766 ev_at (w) = mn_now; 2094 ev_at (w) = mn_now;
1767 2095
1768 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2096 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1769 2097
1770 ANHE_at_cache (timers [HEAP0]); 2098 ANHE_at_cache (timers [HEAP0]);
1771 downheap (timers, timercnt, HEAP0); 2099 downheap (timers, timercnt, HEAP0);
2100 }
2101 else
2102 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2103
2104 EV_FREQUENT_CHECK;
2105 feed_reverse (EV_A_ (W)w);
1772 } 2106 }
1773 else 2107 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1774 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1775 2108
1776 EV_FREQUENT_CHECK;
1777 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2109 feed_reverse_done (EV_A_ EV_TIMEOUT);
1778 } 2110 }
1779} 2111}
1780 2112
1781#if EV_PERIODIC_ENABLE 2113#if EV_PERIODIC_ENABLE
1782void inline_size 2114/* make periodics pending */
2115inline_size void
1783periodics_reify (EV_P) 2116periodics_reify (EV_P)
1784{ 2117{
1785 EV_FREQUENT_CHECK; 2118 EV_FREQUENT_CHECK;
1786 2119
1787 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2120 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1788 { 2121 {
1789 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2122 int feed_count = 0;
1790 2123
1791 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2124 do
1792
1793 /* first reschedule or stop timer */
1794 if (w->reschedule_cb)
1795 { 2125 {
2126 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2127
2128 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2129
2130 /* first reschedule or stop timer */
2131 if (w->reschedule_cb)
2132 {
1796 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2133 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1797 2134
1798 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2135 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1799 2136
1800 ANHE_at_cache (periodics [HEAP0]); 2137 ANHE_at_cache (periodics [HEAP0]);
1801 downheap (periodics, periodiccnt, HEAP0); 2138 downheap (periodics, periodiccnt, HEAP0);
2139 }
2140 else if (w->interval)
2141 {
2142 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2143 /* if next trigger time is not sufficiently in the future, put it there */
2144 /* this might happen because of floating point inexactness */
2145 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2146 {
2147 ev_at (w) += w->interval;
2148
2149 /* if interval is unreasonably low we might still have a time in the past */
2150 /* so correct this. this will make the periodic very inexact, but the user */
2151 /* has effectively asked to get triggered more often than possible */
2152 if (ev_at (w) < ev_rt_now)
2153 ev_at (w) = ev_rt_now;
2154 }
2155
2156 ANHE_at_cache (periodics [HEAP0]);
2157 downheap (periodics, periodiccnt, HEAP0);
2158 }
2159 else
2160 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2161
2162 EV_FREQUENT_CHECK;
2163 feed_reverse (EV_A_ (W)w);
1802 } 2164 }
1803 else if (w->interval) 2165 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1804 {
1805 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1806 /* if next trigger time is not sufficiently in the future, put it there */
1807 /* this might happen because of floating point inexactness */
1808 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1809 {
1810 ev_at (w) += w->interval;
1811 2166
1812 /* if interval is unreasonably low we might still have a time in the past */
1813 /* so correct this. this will make the periodic very inexact, but the user */
1814 /* has effectively asked to get triggered more often than possible */
1815 if (ev_at (w) < ev_rt_now)
1816 ev_at (w) = ev_rt_now;
1817 }
1818
1819 ANHE_at_cache (periodics [HEAP0]);
1820 downheap (periodics, periodiccnt, HEAP0);
1821 }
1822 else
1823 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1824
1825 EV_FREQUENT_CHECK;
1826 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2167 feed_reverse_done (EV_A_ EV_PERIODIC);
1827 } 2168 }
1828} 2169}
1829 2170
2171/* simply recalculate all periodics */
2172/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1830static void noinline 2173static void noinline
1831periodics_reschedule (EV_P) 2174periodics_reschedule (EV_P)
1832{ 2175{
1833 int i; 2176 int i;
1834 2177
… …
1847 2190
1848 reheap (periodics, periodiccnt); 2191 reheap (periodics, periodiccnt);
1849} 2192}
1850#endif 2193#endif
1851 2194
1852void inline_speed 2195/* adjust all timers by a given offset */
2196static void noinline
2197timers_reschedule (EV_P_ ev_tstamp adjust)
2198{
2199 int i;
2200
2201 for (i = 0; i < timercnt; ++i)
2202 {
2203 ANHE *he = timers + i + HEAP0;
2204 ANHE_w (*he)->at += adjust;
2205 ANHE_at_cache (*he);
2206 }
2207}
2208
2209/* fetch new monotonic and realtime times from the kernel */
2210/* also detect if there was a timejump, and act accordingly */
2211inline_speed void
1853time_update (EV_P_ ev_tstamp max_block) 2212time_update (EV_P_ ev_tstamp max_block)
1854{ 2213{
1855 int i;
1856
1857#if EV_USE_MONOTONIC 2214#if EV_USE_MONOTONIC
1858 if (expect_true (have_monotonic)) 2215 if (expect_true (have_monotonic))
1859 { 2216 {
2217 int i;
1860 ev_tstamp odiff = rtmn_diff; 2218 ev_tstamp odiff = rtmn_diff;
1861 2219
1862 mn_now = get_clock (); 2220 mn_now = get_clock ();
1863 2221
1864 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2222 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1890 ev_rt_now = ev_time (); 2248 ev_rt_now = ev_time ();
1891 mn_now = get_clock (); 2249 mn_now = get_clock ();
1892 now_floor = mn_now; 2250 now_floor = mn_now;
1893 } 2251 }
1894 2252
2253 /* no timer adjustment, as the monotonic clock doesn't jump */
2254 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1895# if EV_PERIODIC_ENABLE 2255# if EV_PERIODIC_ENABLE
1896 periodics_reschedule (EV_A); 2256 periodics_reschedule (EV_A);
1897# endif 2257# endif
1898 /* no timer adjustment, as the monotonic clock doesn't jump */
1899 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1900 } 2258 }
1901 else 2259 else
1902#endif 2260#endif
1903 { 2261 {
1904 ev_rt_now = ev_time (); 2262 ev_rt_now = ev_time ();
1905 2263
1906 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2264 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1907 { 2265 {
2266 /* adjust timers. this is easy, as the offset is the same for all of them */
2267 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1908#if EV_PERIODIC_ENABLE 2268#if EV_PERIODIC_ENABLE
1909 periodics_reschedule (EV_A); 2269 periodics_reschedule (EV_A);
1910#endif 2270#endif
1911 /* adjust timers. this is easy, as the offset is the same for all of them */
1912 for (i = 0; i < timercnt; ++i)
1913 {
1914 ANHE *he = timers + i + HEAP0;
1915 ANHE_w (*he)->at += ev_rt_now - mn_now;
1916 ANHE_at_cache (*he);
1917 }
1918 } 2271 }
1919 2272
1920 mn_now = ev_rt_now; 2273 mn_now = ev_rt_now;
1921 } 2274 }
1922} 2275}
1923 2276
1924void 2277void
1925ev_ref (EV_P)
1926{
1927 ++activecnt;
1928}
1929
1930void
1931ev_unref (EV_P)
1932{
1933 --activecnt;
1934}
1935
1936void
1937ev_now_update (EV_P)
1938{
1939 time_update (EV_A_ 1e100);
1940}
1941
1942static int loop_done;
1943
1944void
1945ev_loop (EV_P_ int flags) 2278ev_loop (EV_P_ int flags)
1946{ 2279{
2280#if EV_MINIMAL < 2
2281 ++loop_depth;
2282#endif
2283
2284 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2285
1947 loop_done = EVUNLOOP_CANCEL; 2286 loop_done = EVUNLOOP_CANCEL;
1948 2287
1949 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2288 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1950 2289
1951 do 2290 do
1952 { 2291 {
1953#if EV_VERIFY >= 2 2292#if EV_VERIFY >= 2
1954 ev_loop_verify (EV_A); 2293 ev_loop_verify (EV_A);
… …
1967 /* we might have forked, so queue fork handlers */ 2306 /* we might have forked, so queue fork handlers */
1968 if (expect_false (postfork)) 2307 if (expect_false (postfork))
1969 if (forkcnt) 2308 if (forkcnt)
1970 { 2309 {
1971 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2310 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1972 call_pending (EV_A); 2311 EV_INVOKE_PENDING;
1973 } 2312 }
1974#endif 2313#endif
1975 2314
2315#if EV_PREPARE_ENABLE
1976 /* queue prepare watchers (and execute them) */ 2316 /* queue prepare watchers (and execute them) */
1977 if (expect_false (preparecnt)) 2317 if (expect_false (preparecnt))
1978 { 2318 {
1979 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2319 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1980 call_pending (EV_A); 2320 EV_INVOKE_PENDING;
1981 } 2321 }
2322#endif
1982 2323
1983 if (expect_false (!activecnt)) 2324 if (expect_false (loop_done))
1984 break; 2325 break;
1985 2326
1986 /* we might have forked, so reify kernel state if necessary */ 2327 /* we might have forked, so reify kernel state if necessary */
1987 if (expect_false (postfork)) 2328 if (expect_false (postfork))
1988 loop_fork (EV_A); 2329 loop_fork (EV_A);
… …
1995 ev_tstamp waittime = 0.; 2336 ev_tstamp waittime = 0.;
1996 ev_tstamp sleeptime = 0.; 2337 ev_tstamp sleeptime = 0.;
1997 2338
1998 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2339 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1999 { 2340 {
2341 /* remember old timestamp for io_blocktime calculation */
2342 ev_tstamp prev_mn_now = mn_now;
2343
2000 /* update time to cancel out callback processing overhead */ 2344 /* update time to cancel out callback processing overhead */
2001 time_update (EV_A_ 1e100); 2345 time_update (EV_A_ 1e100);
2002 2346
2003 waittime = MAX_BLOCKTIME; 2347 waittime = MAX_BLOCKTIME;
2004 2348
… …
2014 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2358 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
2015 if (waittime > to) waittime = to; 2359 if (waittime > to) waittime = to;
2016 } 2360 }
2017#endif 2361#endif
2018 2362
2363 /* don't let timeouts decrease the waittime below timeout_blocktime */
2019 if (expect_false (waittime < timeout_blocktime)) 2364 if (expect_false (waittime < timeout_blocktime))
2020 waittime = timeout_blocktime; 2365 waittime = timeout_blocktime;
2021 2366
2022 sleeptime = waittime - backend_fudge; 2367 /* extra check because io_blocktime is commonly 0 */
2023
2024 if (expect_true (sleeptime > io_blocktime)) 2368 if (expect_false (io_blocktime))
2025 sleeptime = io_blocktime;
2026
2027 if (sleeptime)
2028 { 2369 {
2370 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2371
2372 if (sleeptime > waittime - backend_fudge)
2373 sleeptime = waittime - backend_fudge;
2374
2375 if (expect_true (sleeptime > 0.))
2376 {
2029 ev_sleep (sleeptime); 2377 ev_sleep (sleeptime);
2030 waittime -= sleeptime; 2378 waittime -= sleeptime;
2379 }
2031 } 2380 }
2032 } 2381 }
2033 2382
2383#if EV_MINIMAL < 2
2034 ++loop_count; 2384 ++loop_count;
2385#endif
2386 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2035 backend_poll (EV_A_ waittime); 2387 backend_poll (EV_A_ waittime);
2388 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2036 2389
2037 /* update ev_rt_now, do magic */ 2390 /* update ev_rt_now, do magic */
2038 time_update (EV_A_ waittime + sleeptime); 2391 time_update (EV_A_ waittime + sleeptime);
2039 } 2392 }
2040 2393
… …
2047#if EV_IDLE_ENABLE 2400#if EV_IDLE_ENABLE
2048 /* queue idle watchers unless other events are pending */ 2401 /* queue idle watchers unless other events are pending */
2049 idle_reify (EV_A); 2402 idle_reify (EV_A);
2050#endif 2403#endif
2051 2404
2405#if EV_CHECK_ENABLE
2052 /* queue check watchers, to be executed first */ 2406 /* queue check watchers, to be executed first */
2053 if (expect_false (checkcnt)) 2407 if (expect_false (checkcnt))
2054 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2408 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2409#endif
2055 2410
2056 call_pending (EV_A); 2411 EV_INVOKE_PENDING;
2057 } 2412 }
2058 while (expect_true ( 2413 while (expect_true (
2059 activecnt 2414 activecnt
2060 && !loop_done 2415 && !loop_done
2061 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2416 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2062 )); 2417 ));
2063 2418
2064 if (loop_done == EVUNLOOP_ONE) 2419 if (loop_done == EVUNLOOP_ONE)
2065 loop_done = EVUNLOOP_CANCEL; 2420 loop_done = EVUNLOOP_CANCEL;
2421
2422#if EV_MINIMAL < 2
2423 --loop_depth;
2424#endif
2066} 2425}
2067 2426
2068void 2427void
2069ev_unloop (EV_P_ int how) 2428ev_unloop (EV_P_ int how)
2070{ 2429{
2071 loop_done = how; 2430 loop_done = how;
2072} 2431}
2073 2432
2433void
2434ev_ref (EV_P)
2435{
2436 ++activecnt;
2437}
2438
2439void
2440ev_unref (EV_P)
2441{
2442 --activecnt;
2443}
2444
2445void
2446ev_now_update (EV_P)
2447{
2448 time_update (EV_A_ 1e100);
2449}
2450
2451void
2452ev_suspend (EV_P)
2453{
2454 ev_now_update (EV_A);
2455}
2456
2457void
2458ev_resume (EV_P)
2459{
2460 ev_tstamp mn_prev = mn_now;
2461
2462 ev_now_update (EV_A);
2463 timers_reschedule (EV_A_ mn_now - mn_prev);
2464#if EV_PERIODIC_ENABLE
2465 /* TODO: really do this? */
2466 periodics_reschedule (EV_A);
2467#endif
2468}
2469
2074/*****************************************************************************/ 2470/*****************************************************************************/
2471/* singly-linked list management, used when the expected list length is short */
2075 2472
2076void inline_size 2473inline_size void
2077wlist_add (WL *head, WL elem) 2474wlist_add (WL *head, WL elem)
2078{ 2475{
2079 elem->next = *head; 2476 elem->next = *head;
2080 *head = elem; 2477 *head = elem;
2081} 2478}
2082 2479
2083void inline_size 2480inline_size void
2084wlist_del (WL *head, WL elem) 2481wlist_del (WL *head, WL elem)
2085{ 2482{
2086 while (*head) 2483 while (*head)
2087 { 2484 {
2088 if (*head == elem) 2485 if (expect_true (*head == elem))
2089 { 2486 {
2090 *head = elem->next; 2487 *head = elem->next;
2091 return; 2488 break;
2092 } 2489 }
2093 2490
2094 head = &(*head)->next; 2491 head = &(*head)->next;
2095 } 2492 }
2096} 2493}
2097 2494
2098void inline_speed 2495/* internal, faster, version of ev_clear_pending */
2496inline_speed void
2099clear_pending (EV_P_ W w) 2497clear_pending (EV_P_ W w)
2100{ 2498{
2101 if (w->pending) 2499 if (w->pending)
2102 { 2500 {
2103 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2501 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2104 w->pending = 0; 2502 w->pending = 0;
2105 } 2503 }
2106} 2504}
2107 2505
2108int 2506int
… …
2112 int pending = w_->pending; 2510 int pending = w_->pending;
2113 2511
2114 if (expect_true (pending)) 2512 if (expect_true (pending))
2115 { 2513 {
2116 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2514 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2515 p->w = (W)&pending_w;
2117 w_->pending = 0; 2516 w_->pending = 0;
2118 p->w = 0;
2119 return p->events; 2517 return p->events;
2120 } 2518 }
2121 else 2519 else
2122 return 0; 2520 return 0;
2123} 2521}
2124 2522
2125void inline_size 2523inline_size void
2126pri_adjust (EV_P_ W w) 2524pri_adjust (EV_P_ W w)
2127{ 2525{
2128 int pri = w->priority; 2526 int pri = ev_priority (w);
2129 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2527 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2130 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2528 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2131 w->priority = pri; 2529 ev_set_priority (w, pri);
2132} 2530}
2133 2531
2134void inline_speed 2532inline_speed void
2135ev_start (EV_P_ W w, int active) 2533ev_start (EV_P_ W w, int active)
2136{ 2534{
2137 pri_adjust (EV_A_ w); 2535 pri_adjust (EV_A_ w);
2138 w->active = active; 2536 w->active = active;
2139 ev_ref (EV_A); 2537 ev_ref (EV_A);
2140} 2538}
2141 2539
2142void inline_size 2540inline_size void
2143ev_stop (EV_P_ W w) 2541ev_stop (EV_P_ W w)
2144{ 2542{
2145 ev_unref (EV_A); 2543 ev_unref (EV_A);
2146 w->active = 0; 2544 w->active = 0;
2147} 2545}
… …
2155 2553
2156 if (expect_false (ev_is_active (w))) 2554 if (expect_false (ev_is_active (w)))
2157 return; 2555 return;
2158 2556
2159 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2557 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2160 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); 2558 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2161 2559
2162 EV_FREQUENT_CHECK; 2560 EV_FREQUENT_CHECK;
2163 2561
2164 ev_start (EV_A_ (W)w, 1); 2562 ev_start (EV_A_ (W)w, 1);
2165 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2563 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2166 wlist_add (&anfds[fd].head, (WL)w); 2564 wlist_add (&anfds[fd].head, (WL)w);
2167 2565
2168 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2566 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2169 w->events &= ~EV_IOFDSET; 2567 w->events &= ~EV__IOFDSET;
2170 2568
2171 EV_FREQUENT_CHECK; 2569 EV_FREQUENT_CHECK;
2172} 2570}
2173 2571
2174void noinline 2572void noinline
… …
2235 timers [active] = timers [timercnt + HEAP0]; 2633 timers [active] = timers [timercnt + HEAP0];
2236 adjustheap (timers, timercnt, active); 2634 adjustheap (timers, timercnt, active);
2237 } 2635 }
2238 } 2636 }
2239 2637
2240 EV_FREQUENT_CHECK;
2241
2242 ev_at (w) -= mn_now; 2638 ev_at (w) -= mn_now;
2243 2639
2244 ev_stop (EV_A_ (W)w); 2640 ev_stop (EV_A_ (W)w);
2641
2642 EV_FREQUENT_CHECK;
2245} 2643}
2246 2644
2247void noinline 2645void noinline
2248ev_timer_again (EV_P_ ev_timer *w) 2646ev_timer_again (EV_P_ ev_timer *w)
2249{ 2647{
… …
2267 } 2665 }
2268 2666
2269 EV_FREQUENT_CHECK; 2667 EV_FREQUENT_CHECK;
2270} 2668}
2271 2669
2670ev_tstamp
2671ev_timer_remaining (EV_P_ ev_timer *w)
2672{
2673 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2674}
2675
2272#if EV_PERIODIC_ENABLE 2676#if EV_PERIODIC_ENABLE
2273void noinline 2677void noinline
2274ev_periodic_start (EV_P_ ev_periodic *w) 2678ev_periodic_start (EV_P_ ev_periodic *w)
2275{ 2679{
2276 if (expect_false (ev_is_active (w))) 2680 if (expect_false (ev_is_active (w)))
… …
2322 periodics [active] = periodics [periodiccnt + HEAP0]; 2726 periodics [active] = periodics [periodiccnt + HEAP0];
2323 adjustheap (periodics, periodiccnt, active); 2727 adjustheap (periodics, periodiccnt, active);
2324 } 2728 }
2325 } 2729 }
2326 2730
2327 EV_FREQUENT_CHECK;
2328
2329 ev_stop (EV_A_ (W)w); 2731 ev_stop (EV_A_ (W)w);
2732
2733 EV_FREQUENT_CHECK;
2330} 2734}
2331 2735
2332void noinline 2736void noinline
2333ev_periodic_again (EV_P_ ev_periodic *w) 2737ev_periodic_again (EV_P_ ev_periodic *w)
2334{ 2738{
… …
2340 2744
2341#ifndef SA_RESTART 2745#ifndef SA_RESTART
2342# define SA_RESTART 0 2746# define SA_RESTART 0
2343#endif 2747#endif
2344 2748
2749#if EV_SIGNAL_ENABLE
2750
2345void noinline 2751void noinline
2346ev_signal_start (EV_P_ ev_signal *w) 2752ev_signal_start (EV_P_ ev_signal *w)
2347{ 2753{
2348#if EV_MULTIPLICITY
2349 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2350#endif
2351 if (expect_false (ev_is_active (w))) 2754 if (expect_false (ev_is_active (w)))
2352 return; 2755 return;
2353 2756
2354 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 2757 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2355 2758
2356 evpipe_init (EV_A); 2759#if EV_MULTIPLICITY
2760 assert (("libev: a signal must not be attached to two different loops",
2761 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2357 2762
2358 EV_FREQUENT_CHECK; 2763 signals [w->signum - 1].loop = EV_A;
2764#endif
2359 2765
2766 EV_FREQUENT_CHECK;
2767
2768#if EV_USE_SIGNALFD
2769 if (sigfd == -2)
2360 { 2770 {
2361#ifndef _WIN32 2771 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2362 sigset_t full, prev; 2772 if (sigfd < 0 && errno == EINVAL)
2363 sigfillset (&full); 2773 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2364 sigprocmask (SIG_SETMASK, &full, &prev);
2365#endif
2366 2774
2367 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 2775 if (sigfd >= 0)
2776 {
2777 fd_intern (sigfd); /* doing it twice will not hurt */
2368 2778
2369#ifndef _WIN32 2779 sigemptyset (&sigfd_set);
2370 sigprocmask (SIG_SETMASK, &prev, 0); 2780
2371#endif 2781 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2782 ev_set_priority (&sigfd_w, EV_MAXPRI);
2783 ev_io_start (EV_A_ &sigfd_w);
2784 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2785 }
2372 } 2786 }
2787
2788 if (sigfd >= 0)
2789 {
2790 /* TODO: check .head */
2791 sigaddset (&sigfd_set, w->signum);
2792 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2793
2794 signalfd (sigfd, &sigfd_set, 0);
2795 }
2796#endif
2373 2797
2374 ev_start (EV_A_ (W)w, 1); 2798 ev_start (EV_A_ (W)w, 1);
2375 wlist_add (&signals [w->signum - 1].head, (WL)w); 2799 wlist_add (&signals [w->signum - 1].head, (WL)w);
2376 2800
2377 if (!((WL)w)->next) 2801 if (!((WL)w)->next)
2802# if EV_USE_SIGNALFD
2803 if (sigfd < 0) /*TODO*/
2804# endif
2378 { 2805 {
2379#if _WIN32 2806# ifdef _WIN32
2807 evpipe_init (EV_A);
2808
2380 signal (w->signum, ev_sighandler); 2809 signal (w->signum, ev_sighandler);
2381#else 2810# else
2382 struct sigaction sa; 2811 struct sigaction sa;
2812
2813 evpipe_init (EV_A);
2814
2383 sa.sa_handler = ev_sighandler; 2815 sa.sa_handler = ev_sighandler;
2384 sigfillset (&sa.sa_mask); 2816 sigfillset (&sa.sa_mask);
2385 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2817 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2386 sigaction (w->signum, &sa, 0); 2818 sigaction (w->signum, &sa, 0);
2819
2820 sigemptyset (&sa.sa_mask);
2821 sigaddset (&sa.sa_mask, w->signum);
2822 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2387#endif 2823#endif
2388 } 2824 }
2389 2825
2390 EV_FREQUENT_CHECK; 2826 EV_FREQUENT_CHECK;
2391} 2827}
2392 2828
2393void noinline 2829void noinline
… …
2401 2837
2402 wlist_del (&signals [w->signum - 1].head, (WL)w); 2838 wlist_del (&signals [w->signum - 1].head, (WL)w);
2403 ev_stop (EV_A_ (W)w); 2839 ev_stop (EV_A_ (W)w);
2404 2840
2405 if (!signals [w->signum - 1].head) 2841 if (!signals [w->signum - 1].head)
2842 {
2843#if EV_MULTIPLICITY
2844 signals [w->signum - 1].loop = 0; /* unattach from signal */
2845#endif
2846#if EV_USE_SIGNALFD
2847 if (sigfd >= 0)
2848 {
2849 sigset_t ss;
2850
2851 sigemptyset (&ss);
2852 sigaddset (&ss, w->signum);
2853 sigdelset (&sigfd_set, w->signum);
2854
2855 signalfd (sigfd, &sigfd_set, 0);
2856 sigprocmask (SIG_UNBLOCK, &ss, 0);
2857 }
2858 else
2859#endif
2406 signal (w->signum, SIG_DFL); 2860 signal (w->signum, SIG_DFL);
2861 }
2407 2862
2408 EV_FREQUENT_CHECK; 2863 EV_FREQUENT_CHECK;
2409} 2864}
2865
2866#endif
2867
2868#if EV_CHILD_ENABLE
2410 2869
2411void 2870void
2412ev_child_start (EV_P_ ev_child *w) 2871ev_child_start (EV_P_ ev_child *w)
2413{ 2872{
2414#if EV_MULTIPLICITY 2873#if EV_MULTIPLICITY
… …
2438 ev_stop (EV_A_ (W)w); 2897 ev_stop (EV_A_ (W)w);
2439 2898
2440 EV_FREQUENT_CHECK; 2899 EV_FREQUENT_CHECK;
2441} 2900}
2442 2901
2902#endif
2903
2443#if EV_STAT_ENABLE 2904#if EV_STAT_ENABLE
2444 2905
2445# ifdef _WIN32 2906# ifdef _WIN32
2446# undef lstat 2907# undef lstat
2447# define lstat(a,b) _stati64 (a,b) 2908# define lstat(a,b) _stati64 (a,b)
… …
2452#define MIN_STAT_INTERVAL 0.1074891 2913#define MIN_STAT_INTERVAL 0.1074891
2453 2914
2454static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2915static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2455 2916
2456#if EV_USE_INOTIFY 2917#if EV_USE_INOTIFY
2457# define EV_INOTIFY_BUFSIZE 8192 2918
2919/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
2920# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2458 2921
2459static void noinline 2922static void noinline
2460infy_add (EV_P_ ev_stat *w) 2923infy_add (EV_P_ ev_stat *w)
2461{ 2924{
2462 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); 2925 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);
2463 2926
2464 if (w->wd < 0) 2927 if (w->wd >= 0)
2928 {
2929 struct statfs sfs;
2930
2931 /* now local changes will be tracked by inotify, but remote changes won't */
2932 /* unless the filesystem is known to be local, we therefore still poll */
2933 /* also do poll on <2.6.25, but with normal frequency */
2934
2935 if (!fs_2625)
2936 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2937 else if (!statfs (w->path, &sfs)
2938 && (sfs.f_type == 0x1373 /* devfs */
2939 || sfs.f_type == 0xEF53 /* ext2/3 */
2940 || sfs.f_type == 0x3153464a /* jfs */
2941 || sfs.f_type == 0x52654973 /* reiser3 */
2942 || sfs.f_type == 0x01021994 /* tempfs */
2943 || sfs.f_type == 0x58465342 /* xfs */))
2944 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2945 else
2946 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2465 { 2947 }
2948 else
2949 {
2950 /* can't use inotify, continue to stat */
2466 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 2951 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2467 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2468 2952
2469 /* monitor some parent directory for speedup hints */ 2953 /* if path is not there, monitor some parent directory for speedup hints */
2470 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 2954 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2471 /* but an efficiency issue only */ 2955 /* but an efficiency issue only */
2472 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2956 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2473 { 2957 {
2474 char path [4096]; 2958 char path [4096];
… …
2490 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2974 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2491 } 2975 }
2492 } 2976 }
2493 2977
2494 if (w->wd >= 0) 2978 if (w->wd >= 0)
2495 {
2496 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2979 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2497 2980
2498 /* now local changes will be tracked by inotify, but remote changes won't */ 2981 /* now re-arm timer, if required */
2499 /* unless the filesystem it known to be local, we therefore still poll */ 2982 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2500 /* also do poll on <2.6.25, but with normal frequency */
2501 struct statfs sfs;
2502
2503 if (fs_2625 && !statfs (w->path, &sfs))
2504 if (sfs.f_type == 0x1373 /* devfs */
2505 || sfs.f_type == 0xEF53 /* ext2/3 */
2506 || sfs.f_type == 0x3153464a /* jfs */
2507 || sfs.f_type == 0x52654973 /* reiser3 */
2508 || sfs.f_type == 0x01021994 /* tempfs */
2509 || sfs.f_type == 0x58465342 /* xfs */)
2510 return;
2511
2512 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2513 ev_timer_again (EV_A_ &w->timer); 2983 ev_timer_again (EV_A_ &w->timer);
2514 } 2984 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2515} 2985}
2516 2986
2517static void noinline 2987static void noinline
2518infy_del (EV_P_ ev_stat *w) 2988infy_del (EV_P_ ev_stat *w)
2519{ 2989{
… …
2564 3034
2565static void 3035static void
2566infy_cb (EV_P_ ev_io *w, int revents) 3036infy_cb (EV_P_ ev_io *w, int revents)
2567{ 3037{
2568 char buf [EV_INOTIFY_BUFSIZE]; 3038 char buf [EV_INOTIFY_BUFSIZE];
2569 struct inotify_event *ev = (struct inotify_event *)buf;
2570 int ofs; 3039 int ofs;
2571 int len = read (fs_fd, buf, sizeof (buf)); 3040 int len = read (fs_fd, buf, sizeof (buf));
2572 3041
2573 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3042 for (ofs = 0; ofs < len; )
3043 {
3044 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2574 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3045 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3046 ofs += sizeof (struct inotify_event) + ev->len;
3047 }
2575} 3048}
2576 3049
2577void inline_size 3050inline_size unsigned int
3051ev_linux_version (void)
3052{
3053 struct utsname buf;
3054 unsigned int v;
3055 int i;
3056 char *p = buf.release;
3057
3058 if (uname (&buf))
3059 return 0;
3060
3061 for (i = 3+1; --i; )
3062 {
3063 unsigned int c = 0;
3064
3065 for (;;)
3066 {
3067 if (*p >= '0' && *p <= '9')
3068 c = c * 10 + *p++ - '0';
3069 else
3070 {
3071 p += *p == '.';
3072 break;
3073 }
3074 }
3075
3076 v = (v << 8) | c;
3077 }
3078
3079 return v;
3080}
3081
3082inline_size void
2578check_2625 (EV_P) 3083ev_check_2625 (EV_P)
2579{ 3084{
2580 /* kernels < 2.6.25 are borked 3085 /* kernels < 2.6.25 are borked
2581 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3086 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2582 */ 3087 */
2583 struct utsname buf; 3088 if (ev_linux_version () < 0x020619)
2584 int major, minor, micro;
2585
2586 if (uname (&buf))
2587 return; 3089 return;
2588 3090
2589 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2590 return;
2591
2592 if (major < 2
2593 || (major == 2 && minor < 6)
2594 || (major == 2 && minor == 6 && micro < 25))
2595 return;
2596
2597 fs_2625 = 1; 3091 fs_2625 = 1;
2598} 3092}
2599 3093
2600void inline_size 3094inline_size int
3095infy_newfd (void)
3096{
3097#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3098 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3099 if (fd >= 0)
3100 return fd;
3101#endif
3102 return inotify_init ();
3103}
3104
3105inline_size void
2601infy_init (EV_P) 3106infy_init (EV_P)
2602{ 3107{
2603 if (fs_fd != -2) 3108 if (fs_fd != -2)
2604 return; 3109 return;
2605 3110
2606 fs_fd = -1; 3111 fs_fd = -1;
2607 3112
2608 check_2625 (EV_A); 3113 ev_check_2625 (EV_A);
2609 3114
2610 fs_fd = inotify_init (); 3115 fs_fd = infy_newfd ();
2611 3116
2612 if (fs_fd >= 0) 3117 if (fs_fd >= 0)
2613 { 3118 {
3119 fd_intern (fs_fd);
2614 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3120 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2615 ev_set_priority (&fs_w, EV_MAXPRI); 3121 ev_set_priority (&fs_w, EV_MAXPRI);
2616 ev_io_start (EV_A_ &fs_w); 3122 ev_io_start (EV_A_ &fs_w);
3123 ev_unref (EV_A);
2617 } 3124 }
2618} 3125}
2619 3126
2620void inline_size 3127inline_size void
2621infy_fork (EV_P) 3128infy_fork (EV_P)
2622{ 3129{
2623 int slot; 3130 int slot;
2624 3131
2625 if (fs_fd < 0) 3132 if (fs_fd < 0)
2626 return; 3133 return;
2627 3134
3135 ev_ref (EV_A);
3136 ev_io_stop (EV_A_ &fs_w);
2628 close (fs_fd); 3137 close (fs_fd);
2629 fs_fd = inotify_init (); 3138 fs_fd = infy_newfd ();
3139
3140 if (fs_fd >= 0)
3141 {
3142 fd_intern (fs_fd);
3143 ev_io_set (&fs_w, fs_fd, EV_READ);
3144 ev_io_start (EV_A_ &fs_w);
3145 ev_unref (EV_A);
3146 }
2630 3147
2631 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3148 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2632 { 3149 {
2633 WL w_ = fs_hash [slot].head; 3150 WL w_ = fs_hash [slot].head;
2634 fs_hash [slot].head = 0; 3151 fs_hash [slot].head = 0;
… …
2641 w->wd = -1; 3158 w->wd = -1;
2642 3159
2643 if (fs_fd >= 0) 3160 if (fs_fd >= 0)
2644 infy_add (EV_A_ w); /* re-add, no matter what */ 3161 infy_add (EV_A_ w); /* re-add, no matter what */
2645 else 3162 else
3163 {
3164 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3165 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2646 ev_timer_again (EV_A_ &w->timer); 3166 ev_timer_again (EV_A_ &w->timer);
3167 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3168 }
2647 } 3169 }
2648 } 3170 }
2649} 3171}
2650 3172
2651#endif 3173#endif
… …
2668static void noinline 3190static void noinline
2669stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3191stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2670{ 3192{
2671 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3193 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2672 3194
2673 /* we copy this here each the time so that */ 3195 ev_statdata prev = w->attr;
2674 /* prev has the old value when the callback gets invoked */
2675 w->prev = w->attr;
2676 ev_stat_stat (EV_A_ w); 3196 ev_stat_stat (EV_A_ w);
2677 3197
2678 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3198 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2679 if ( 3199 if (
2680 w->prev.st_dev != w->attr.st_dev 3200 prev.st_dev != w->attr.st_dev
2681 || w->prev.st_ino != w->attr.st_ino 3201 || prev.st_ino != w->attr.st_ino
2682 || w->prev.st_mode != w->attr.st_mode 3202 || prev.st_mode != w->attr.st_mode
2683 || w->prev.st_nlink != w->attr.st_nlink 3203 || prev.st_nlink != w->attr.st_nlink
2684 || w->prev.st_uid != w->attr.st_uid 3204 || prev.st_uid != w->attr.st_uid
2685 || w->prev.st_gid != w->attr.st_gid 3205 || prev.st_gid != w->attr.st_gid
2686 || w->prev.st_rdev != w->attr.st_rdev 3206 || prev.st_rdev != w->attr.st_rdev
2687 || w->prev.st_size != w->attr.st_size 3207 || prev.st_size != w->attr.st_size
2688 || w->prev.st_atime != w->attr.st_atime 3208 || prev.st_atime != w->attr.st_atime
2689 || w->prev.st_mtime != w->attr.st_mtime 3209 || prev.st_mtime != w->attr.st_mtime
2690 || w->prev.st_ctime != w->attr.st_ctime 3210 || prev.st_ctime != w->attr.st_ctime
2691 ) { 3211 ) {
3212 /* we only update w->prev on actual differences */
3213 /* in case we test more often than invoke the callback, */
3214 /* to ensure that prev is always different to attr */
3215 w->prev = prev;
3216
2692 #if EV_USE_INOTIFY 3217 #if EV_USE_INOTIFY
2693 if (fs_fd >= 0) 3218 if (fs_fd >= 0)
2694 { 3219 {
2695 infy_del (EV_A_ w); 3220 infy_del (EV_A_ w);
2696 infy_add (EV_A_ w); 3221 infy_add (EV_A_ w);
… …
2721 3246
2722 if (fs_fd >= 0) 3247 if (fs_fd >= 0)
2723 infy_add (EV_A_ w); 3248 infy_add (EV_A_ w);
2724 else 3249 else
2725#endif 3250#endif
3251 {
2726 ev_timer_again (EV_A_ &w->timer); 3252 ev_timer_again (EV_A_ &w->timer);
3253 ev_unref (EV_A);
3254 }
2727 3255
2728 ev_start (EV_A_ (W)w, 1); 3256 ev_start (EV_A_ (W)w, 1);
2729 3257
2730 EV_FREQUENT_CHECK; 3258 EV_FREQUENT_CHECK;
2731} 3259}
… …
2740 EV_FREQUENT_CHECK; 3268 EV_FREQUENT_CHECK;
2741 3269
2742#if EV_USE_INOTIFY 3270#if EV_USE_INOTIFY
2743 infy_del (EV_A_ w); 3271 infy_del (EV_A_ w);
2744#endif 3272#endif
3273
3274 if (ev_is_active (&w->timer))
3275 {
3276 ev_ref (EV_A);
2745 ev_timer_stop (EV_A_ &w->timer); 3277 ev_timer_stop (EV_A_ &w->timer);
3278 }
2746 3279
2747 ev_stop (EV_A_ (W)w); 3280 ev_stop (EV_A_ (W)w);
2748 3281
2749 EV_FREQUENT_CHECK; 3282 EV_FREQUENT_CHECK;
2750} 3283}
… …
2795 3328
2796 EV_FREQUENT_CHECK; 3329 EV_FREQUENT_CHECK;
2797} 3330}
2798#endif 3331#endif
2799 3332
3333#if EV_PREPARE_ENABLE
2800void 3334void
2801ev_prepare_start (EV_P_ ev_prepare *w) 3335ev_prepare_start (EV_P_ ev_prepare *w)
2802{ 3336{
2803 if (expect_false (ev_is_active (w))) 3337 if (expect_false (ev_is_active (w)))
2804 return; 3338 return;
… …
2830 3364
2831 ev_stop (EV_A_ (W)w); 3365 ev_stop (EV_A_ (W)w);
2832 3366
2833 EV_FREQUENT_CHECK; 3367 EV_FREQUENT_CHECK;
2834} 3368}
3369#endif
2835 3370
3371#if EV_CHECK_ENABLE
2836void 3372void
2837ev_check_start (EV_P_ ev_check *w) 3373ev_check_start (EV_P_ ev_check *w)
2838{ 3374{
2839 if (expect_false (ev_is_active (w))) 3375 if (expect_false (ev_is_active (w)))
2840 return; 3376 return;
… …
2866 3402
2867 ev_stop (EV_A_ (W)w); 3403 ev_stop (EV_A_ (W)w);
2868 3404
2869 EV_FREQUENT_CHECK; 3405 EV_FREQUENT_CHECK;
2870} 3406}
3407#endif
2871 3408
2872#if EV_EMBED_ENABLE 3409#if EV_EMBED_ENABLE
2873void noinline 3410void noinline
2874ev_embed_sweep (EV_P_ ev_embed *w) 3411ev_embed_sweep (EV_P_ ev_embed *w)
2875{ 3412{
… …
2891embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3428embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2892{ 3429{
2893 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3430 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2894 3431
2895 { 3432 {
2896 struct ev_loop *loop = w->other; 3433 EV_P = w->other;
2897 3434
2898 while (fdchangecnt) 3435 while (fdchangecnt)
2899 { 3436 {
2900 fd_reify (EV_A); 3437 fd_reify (EV_A);
2901 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3438 ev_loop (EV_A_ EVLOOP_NONBLOCK);
… …
2909 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3446 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
2910 3447
2911 ev_embed_stop (EV_A_ w); 3448 ev_embed_stop (EV_A_ w);
2912 3449
2913 { 3450 {
2914 struct ev_loop *loop = w->other; 3451 EV_P = w->other;
2915 3452
2916 ev_loop_fork (EV_A); 3453 ev_loop_fork (EV_A);
2917 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3454 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2918 } 3455 }
2919 3456
… …
2933{ 3470{
2934 if (expect_false (ev_is_active (w))) 3471 if (expect_false (ev_is_active (w)))
2935 return; 3472 return;
2936 3473
2937 { 3474 {
2938 struct ev_loop *loop = w->other; 3475 EV_P = w->other;
2939 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3476 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2940 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3477 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2941 } 3478 }
2942 3479
2943 EV_FREQUENT_CHECK; 3480 EV_FREQUENT_CHECK;
… …
2970 3507
2971 ev_io_stop (EV_A_ &w->io); 3508 ev_io_stop (EV_A_ &w->io);
2972 ev_prepare_stop (EV_A_ &w->prepare); 3509 ev_prepare_stop (EV_A_ &w->prepare);
2973 ev_fork_stop (EV_A_ &w->fork); 3510 ev_fork_stop (EV_A_ &w->fork);
2974 3511
3512 ev_stop (EV_A_ (W)w);
3513
2975 EV_FREQUENT_CHECK; 3514 EV_FREQUENT_CHECK;
2976} 3515}
2977#endif 3516#endif
2978 3517
2979#if EV_FORK_ENABLE 3518#if EV_FORK_ENABLE
… …
3055 3594
3056void 3595void
3057ev_async_send (EV_P_ ev_async *w) 3596ev_async_send (EV_P_ ev_async *w)
3058{ 3597{
3059 w->sent = 1; 3598 w->sent = 1;
3060 evpipe_write (EV_A_ &gotasync); 3599 evpipe_write (EV_A_ &async_pending);
3061} 3600}
3062#endif 3601#endif
3063 3602
3064/*****************************************************************************/ 3603/*****************************************************************************/
3065 3604
… …
3127 ev_timer_set (&once->to, timeout, 0.); 3666 ev_timer_set (&once->to, timeout, 0.);
3128 ev_timer_start (EV_A_ &once->to); 3667 ev_timer_start (EV_A_ &once->to);
3129 } 3668 }
3130} 3669}
3131 3670
3671/*****************************************************************************/
3672
3673#if EV_WALK_ENABLE
3674void
3675ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3676{
3677 int i, j;
3678 ev_watcher_list *wl, *wn;
3679
3680 if (types & (EV_IO | EV_EMBED))
3681 for (i = 0; i < anfdmax; ++i)
3682 for (wl = anfds [i].head; wl; )
3683 {
3684 wn = wl->next;
3685
3686#if EV_EMBED_ENABLE
3687 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3688 {
3689 if (types & EV_EMBED)
3690 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3691 }
3692 else
3693#endif
3694#if EV_USE_INOTIFY
3695 if (ev_cb ((ev_io *)wl) == infy_cb)
3696 ;
3697 else
3698#endif
3699 if ((ev_io *)wl != &pipe_w)
3700 if (types & EV_IO)
3701 cb (EV_A_ EV_IO, wl);
3702
3703 wl = wn;
3704 }
3705
3706 if (types & (EV_TIMER | EV_STAT))
3707 for (i = timercnt + HEAP0; i-- > HEAP0; )
3708#if EV_STAT_ENABLE
3709 /*TODO: timer is not always active*/
3710 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3711 {
3712 if (types & EV_STAT)
3713 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3714 }
3715 else
3716#endif
3717 if (types & EV_TIMER)
3718 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3719
3720#if EV_PERIODIC_ENABLE
3721 if (types & EV_PERIODIC)
3722 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3723 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3724#endif
3725
3726#if EV_IDLE_ENABLE
3727 if (types & EV_IDLE)
3728 for (j = NUMPRI; i--; )
3729 for (i = idlecnt [j]; i--; )
3730 cb (EV_A_ EV_IDLE, idles [j][i]);
3731#endif
3732
3733#if EV_FORK_ENABLE
3734 if (types & EV_FORK)
3735 for (i = forkcnt; i--; )
3736 if (ev_cb (forks [i]) != embed_fork_cb)
3737 cb (EV_A_ EV_FORK, forks [i]);
3738#endif
3739
3740#if EV_ASYNC_ENABLE
3741 if (types & EV_ASYNC)
3742 for (i = asynccnt; i--; )
3743 cb (EV_A_ EV_ASYNC, asyncs [i]);
3744#endif
3745
3746#if EV_PREPARE_ENABLE
3747 if (types & EV_PREPARE)
3748 for (i = preparecnt; i--; )
3749# if EV_EMBED_ENABLE
3750 if (ev_cb (prepares [i]) != embed_prepare_cb)
3751# endif
3752 cb (EV_A_ EV_PREPARE, prepares [i]);
3753#endif
3754
3755#if EV_CHECK_ENABLE
3756 if (types & EV_CHECK)
3757 for (i = checkcnt; i--; )
3758 cb (EV_A_ EV_CHECK, checks [i]);
3759#endif
3760
3761#if EV_SIGNAL_ENABLE
3762 if (types & EV_SIGNAL)
3763 for (i = 0; i < EV_NSIG - 1; ++i)
3764 for (wl = signals [i].head; wl; )
3765 {
3766 wn = wl->next;
3767 cb (EV_A_ EV_SIGNAL, wl);
3768 wl = wn;
3769 }
3770#endif
3771
3772#if EV_CHILD_ENABLE
3773 if (types & EV_CHILD)
3774 for (i = EV_PID_HASHSIZE; i--; )
3775 for (wl = childs [i]; wl; )
3776 {
3777 wn = wl->next;
3778 cb (EV_A_ EV_CHILD, wl);
3779 wl = wn;
3780 }
3781#endif
3782/* EV_STAT 0x00001000 /* stat data changed */
3783/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3784}
3785#endif
3786
3132#if EV_MULTIPLICITY 3787#if EV_MULTIPLICITY
3133 #include "ev_wrap.h" 3788 #include "ev_wrap.h"
3134#endif 3789#endif
3135 3790
3136#ifdef __cplusplus 3791#ifdef __cplusplus

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