ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.253 by root, Sat May 31 03:13:27 2008 UTC vs.
Revision 1.319 by root, Wed Nov 18 10:25:22 2009 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
47# include EV_CONFIG_H 47# include EV_CONFIG_H
48# else 48# else
49# include "config.h" 49# include "config.h"
50# endif 50# endif
51 51
52# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME
56# define EV_USE_REALTIME 0
57# endif
58# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1
60# endif
61# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL)
63# define EV_USE_CLOCK_SYSCALL 0
64# endif
65
52# if HAVE_CLOCK_GETTIME 66# if HAVE_CLOCK_GETTIME
53# ifndef EV_USE_MONOTONIC 67# ifndef EV_USE_MONOTONIC
54# define EV_USE_MONOTONIC 1 68# define EV_USE_MONOTONIC 1
55# endif 69# endif
56# ifndef EV_USE_REALTIME 70# ifndef EV_USE_REALTIME
57# define EV_USE_REALTIME 1 71# define EV_USE_REALTIME 0
58# endif 72# endif
59# else 73# else
60# ifndef EV_USE_MONOTONIC 74# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 0 75# define EV_USE_MONOTONIC 0
62# endif 76# endif
… …
119# else 133# else
120# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY 0
121# endif 135# endif
122# endif 136# endif
123 137
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
124# ifndef EV_USE_EVENTFD 146# ifndef EV_USE_EVENTFD
125# if HAVE_EVENTFD 147# if HAVE_EVENTFD
126# define EV_USE_EVENTFD 1 148# define EV_USE_EVENTFD 1
127# else 149# else
128# define EV_USE_EVENTFD 0 150# define EV_USE_EVENTFD 0
… …
131 153
132#endif 154#endif
133 155
134#include <math.h> 156#include <math.h>
135#include <stdlib.h> 157#include <stdlib.h>
158#include <string.h>
136#include <fcntl.h> 159#include <fcntl.h>
137#include <stddef.h> 160#include <stddef.h>
138 161
139#include <stdio.h> 162#include <stdio.h>
140 163
… …
154#ifndef _WIN32 177#ifndef _WIN32
155# include <sys/time.h> 178# include <sys/time.h>
156# include <sys/wait.h> 179# include <sys/wait.h>
157# include <unistd.h> 180# include <unistd.h>
158#else 181#else
182# include <io.h>
159# define WIN32_LEAN_AND_MEAN 183# define WIN32_LEAN_AND_MEAN
160# include <windows.h> 184# include <windows.h>
161# ifndef EV_SELECT_IS_WINSOCKET 185# ifndef EV_SELECT_IS_WINSOCKET
162# define EV_SELECT_IS_WINSOCKET 1 186# define EV_SELECT_IS_WINSOCKET 1
163# endif 187# endif
164#endif 188#endif
165 189
166/* this block tries to deduce configuration from header-defined symbols and defaults */ 190/* this block tries to deduce configuration from header-defined symbols and defaults */
191
192/* try to deduce the maximum number of signals on this platform */
193#if defined (EV_NSIG)
194/* use what's provided */
195#elif defined (NSIG)
196# define EV_NSIG (NSIG)
197#elif defined(_NSIG)
198# define EV_NSIG (_NSIG)
199#elif defined (SIGMAX)
200# define EV_NSIG (SIGMAX+1)
201#elif defined (SIG_MAX)
202# define EV_NSIG (SIG_MAX+1)
203#elif defined (_SIG_MAX)
204# define EV_NSIG (_SIG_MAX+1)
205#elif defined (MAXSIG)
206# define EV_NSIG (MAXSIG+1)
207#elif defined (MAX_SIG)
208# define EV_NSIG (MAX_SIG+1)
209#elif defined (SIGARRAYSIZE)
210# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
211#elif defined (_sys_nsig)
212# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213#else
214# error "unable to find value for NSIG, please report"
215/* to make it compile regardless, just remove the above line */
216# define EV_NSIG 65
217#endif
218
219#ifndef EV_USE_CLOCK_SYSCALL
220# if __linux && __GLIBC__ >= 2
221# define EV_USE_CLOCK_SYSCALL 1
222# else
223# define EV_USE_CLOCK_SYSCALL 0
224# endif
225#endif
167 226
168#ifndef EV_USE_MONOTONIC 227#ifndef EV_USE_MONOTONIC
169# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 228# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
170# define EV_USE_MONOTONIC 1 229# define EV_USE_MONOTONIC 1
171# else 230# else
172# define EV_USE_MONOTONIC 0 231# define EV_USE_MONOTONIC 0
173# endif 232# endif
174#endif 233#endif
175 234
176#ifndef EV_USE_REALTIME 235#ifndef EV_USE_REALTIME
177# define EV_USE_REALTIME 0 236# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
178#endif 237#endif
179 238
180#ifndef EV_USE_NANOSLEEP 239#ifndef EV_USE_NANOSLEEP
181# if _POSIX_C_SOURCE >= 199309L 240# if _POSIX_C_SOURCE >= 199309L
182# define EV_USE_NANOSLEEP 1 241# define EV_USE_NANOSLEEP 1
… …
243# else 302# else
244# define EV_USE_EVENTFD 0 303# define EV_USE_EVENTFD 0
245# endif 304# endif
246#endif 305#endif
247 306
307#ifndef EV_USE_SIGNALFD
308# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309# define EV_USE_SIGNALFD 1
310# else
311# define EV_USE_SIGNALFD 0
312# endif
313#endif
314
248#if 0 /* debugging */ 315#if 0 /* debugging */
249# define EV_VERIFY 3 316# define EV_VERIFY 3
250# define EV_USE_4HEAP 1 317# define EV_USE_4HEAP 1
251# define EV_HEAP_CACHE_AT 1 318# define EV_HEAP_CACHE_AT 1
252#endif 319#endif
… …
261 328
262#ifndef EV_HEAP_CACHE_AT 329#ifndef EV_HEAP_CACHE_AT
263# define EV_HEAP_CACHE_AT !EV_MINIMAL 330# define EV_HEAP_CACHE_AT !EV_MINIMAL
264#endif 331#endif
265 332
333/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
334/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL
336# include <syscall.h>
337# ifdef SYS_clock_gettime
338# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
339# undef EV_USE_MONOTONIC
340# define EV_USE_MONOTONIC 1
341# else
342# undef EV_USE_CLOCK_SYSCALL
343# define EV_USE_CLOCK_SYSCALL 0
344# endif
345#endif
346
266/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 347/* this block fixes any misconfiguration where we know we run into trouble otherwise */
267 348
268#ifndef CLOCK_MONOTONIC 349#ifndef CLOCK_MONOTONIC
269# undef EV_USE_MONOTONIC 350# undef EV_USE_MONOTONIC
270# define EV_USE_MONOTONIC 0 351# define EV_USE_MONOTONIC 0
… …
285# include <sys/select.h> 366# include <sys/select.h>
286# endif 367# endif
287#endif 368#endif
288 369
289#if EV_USE_INOTIFY 370#if EV_USE_INOTIFY
371# include <sys/utsname.h>
372# include <sys/statfs.h>
290# include <sys/inotify.h> 373# include <sys/inotify.h>
374/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
375# ifndef IN_DONT_FOLLOW
376# undef EV_USE_INOTIFY
377# define EV_USE_INOTIFY 0
378# endif
291#endif 379#endif
292 380
293#if EV_SELECT_IS_WINSOCKET 381#if EV_SELECT_IS_WINSOCKET
294# include <winsock.h> 382# include <winsock.h>
295#endif 383#endif
296 384
297#if EV_USE_EVENTFD 385#if EV_USE_EVENTFD
298/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 386/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
299# include <stdint.h> 387# include <stdint.h>
388# ifndef EFD_NONBLOCK
389# define EFD_NONBLOCK O_NONBLOCK
390# endif
391# ifndef EFD_CLOEXEC
392# ifdef O_CLOEXEC
393# define EFD_CLOEXEC O_CLOEXEC
394# else
395# define EFD_CLOEXEC 02000000
396# endif
397# endif
300# ifdef __cplusplus 398# ifdef __cplusplus
301extern "C" { 399extern "C" {
302# endif 400# endif
303int eventfd (unsigned int initval, int flags); 401int eventfd (unsigned int initval, int flags);
304# ifdef __cplusplus 402# ifdef __cplusplus
305} 403}
306# endif 404# endif
307#endif 405#endif
406
407#if EV_USE_SIGNALFD
408/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
409# include <stdint.h>
410# ifndef SFD_NONBLOCK
411# define SFD_NONBLOCK O_NONBLOCK
412# endif
413# ifndef SFD_CLOEXEC
414# ifdef O_CLOEXEC
415# define SFD_CLOEXEC O_CLOEXEC
416# else
417# define SFD_CLOEXEC 02000000
418# endif
419# endif
420# ifdef __cplusplus
421extern "C" {
422# endif
423int signalfd (int fd, const sigset_t *mask, int flags);
424
425struct signalfd_siginfo
426{
427 uint32_t ssi_signo;
428 char pad[128 - sizeof (uint32_t)];
429};
430# ifdef __cplusplus
431}
432# endif
433#endif
434
308 435
309/**/ 436/**/
310 437
311#if EV_VERIFY >= 3 438#if EV_VERIFY >= 3
312# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 439# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
… …
324 */ 451 */
325#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 452#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
326 453
327#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 454#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
328#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 455#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
329/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
330 456
331#if __GNUC__ >= 4 457#if __GNUC__ >= 4
332# define expect(expr,value) __builtin_expect ((expr),(value)) 458# define expect(expr,value) __builtin_expect ((expr),(value))
333# define noinline __attribute__ ((noinline)) 459# define noinline __attribute__ ((noinline))
334#else 460#else
… …
347# define inline_speed static noinline 473# define inline_speed static noinline
348#else 474#else
349# define inline_speed static inline 475# define inline_speed static inline
350#endif 476#endif
351 477
352#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 478#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479
480#if EV_MINPRI == EV_MAXPRI
481# define ABSPRI(w) (((W)w), 0)
482#else
353#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 483# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
484#endif
354 485
355#define EMPTY /* required for microsofts broken pseudo-c compiler */ 486#define EMPTY /* required for microsofts broken pseudo-c compiler */
356#define EMPTY2(a,b) /* used to suppress some warnings */ 487#define EMPTY2(a,b) /* used to suppress some warnings */
357 488
358typedef ev_watcher *W; 489typedef ev_watcher *W;
… …
360typedef ev_watcher_time *WT; 491typedef ev_watcher_time *WT;
361 492
362#define ev_active(w) ((W)(w))->active 493#define ev_active(w) ((W)(w))->active
363#define ev_at(w) ((WT)(w))->at 494#define ev_at(w) ((WT)(w))->at
364 495
365#if EV_USE_MONOTONIC 496#if EV_USE_REALTIME
366/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 497/* sig_atomic_t is used to avoid per-thread variables or locking but still */
367/* giving it a reasonably high chance of working on typical architetcures */ 498/* giving it a reasonably high chance of working on typical architetcures */
499static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
500#endif
501
502#if EV_USE_MONOTONIC
368static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 503static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
504#endif
505
506#ifndef EV_FD_TO_WIN32_HANDLE
507# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
508#endif
509#ifndef EV_WIN32_HANDLE_TO_FD
510# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (fd, 0)
511#endif
512#ifndef EV_WIN32_CLOSE_FD
513# define EV_WIN32_CLOSE_FD(fd) close (fd)
369#endif 514#endif
370 515
371#ifdef _WIN32 516#ifdef _WIN32
372# include "ev_win32.c" 517# include "ev_win32.c"
373#endif 518#endif
… …
381{ 526{
382 syserr_cb = cb; 527 syserr_cb = cb;
383} 528}
384 529
385static void noinline 530static void noinline
386syserr (const char *msg) 531ev_syserr (const char *msg)
387{ 532{
388 if (!msg) 533 if (!msg)
389 msg = "(libev) system error"; 534 msg = "(libev) system error";
390 535
391 if (syserr_cb) 536 if (syserr_cb)
… …
437#define ev_malloc(size) ev_realloc (0, (size)) 582#define ev_malloc(size) ev_realloc (0, (size))
438#define ev_free(ptr) ev_realloc ((ptr), 0) 583#define ev_free(ptr) ev_realloc ((ptr), 0)
439 584
440/*****************************************************************************/ 585/*****************************************************************************/
441 586
587/* set in reify when reification needed */
588#define EV_ANFD_REIFY 1
589
590/* file descriptor info structure */
442typedef struct 591typedef struct
443{ 592{
444 WL head; 593 WL head;
445 unsigned char events; 594 unsigned char events; /* the events watched for */
595 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
596 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
446 unsigned char reify; 597 unsigned char unused;
598#if EV_USE_EPOLL
599 unsigned int egen; /* generation counter to counter epoll bugs */
600#endif
447#if EV_SELECT_IS_WINSOCKET 601#if EV_SELECT_IS_WINSOCKET
448 SOCKET handle; 602 SOCKET handle;
449#endif 603#endif
450} ANFD; 604} ANFD;
451 605
606/* stores the pending event set for a given watcher */
452typedef struct 607typedef struct
453{ 608{
454 W w; 609 W w;
455 int events; 610 int events; /* the pending event set for the given watcher */
456} ANPENDING; 611} ANPENDING;
457 612
458#if EV_USE_INOTIFY 613#if EV_USE_INOTIFY
459/* hash table entry per inotify-id */ 614/* hash table entry per inotify-id */
460typedef struct 615typedef struct
… …
463} ANFS; 618} ANFS;
464#endif 619#endif
465 620
466/* Heap Entry */ 621/* Heap Entry */
467#if EV_HEAP_CACHE_AT 622#if EV_HEAP_CACHE_AT
623 /* a heap element */
468 typedef struct { 624 typedef struct {
469 ev_tstamp at; 625 ev_tstamp at;
470 WT w; 626 WT w;
471 } ANHE; 627 } ANHE;
472 628
473 #define ANHE_w(he) (he).w /* access watcher, read-write */ 629 #define ANHE_w(he) (he).w /* access watcher, read-write */
474 #define ANHE_at(he) (he).at /* access cached at, read-only */ 630 #define ANHE_at(he) (he).at /* access cached at, read-only */
475 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ 631 #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */
476#else 632#else
633 /* a heap element */
477 typedef WT ANHE; 634 typedef WT ANHE;
478 635
479 #define ANHE_w(he) (he) 636 #define ANHE_w(he) (he)
480 #define ANHE_at(he) (he)->at 637 #define ANHE_at(he) (he)->at
481 #define ANHE_at_cache(he) 638 #define ANHE_at_cache(he)
… …
505 662
506 static int ev_default_loop_ptr; 663 static int ev_default_loop_ptr;
507 664
508#endif 665#endif
509 666
667#if EV_MINIMAL < 2
668# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
669# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670# define EV_INVOKE_PENDING invoke_cb (EV_A)
671#else
672# define EV_RELEASE_CB (void)0
673# define EV_ACQUIRE_CB (void)0
674# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675#endif
676
677#define EVUNLOOP_RECURSE 0x80
678
510/*****************************************************************************/ 679/*****************************************************************************/
511 680
681#ifndef EV_HAVE_EV_TIME
512ev_tstamp 682ev_tstamp
513ev_time (void) 683ev_time (void)
514{ 684{
515#if EV_USE_REALTIME 685#if EV_USE_REALTIME
686 if (expect_true (have_realtime))
687 {
516 struct timespec ts; 688 struct timespec ts;
517 clock_gettime (CLOCK_REALTIME, &ts); 689 clock_gettime (CLOCK_REALTIME, &ts);
518 return ts.tv_sec + ts.tv_nsec * 1e-9; 690 return ts.tv_sec + ts.tv_nsec * 1e-9;
519#else 691 }
692#endif
693
520 struct timeval tv; 694 struct timeval tv;
521 gettimeofday (&tv, 0); 695 gettimeofday (&tv, 0);
522 return tv.tv_sec + tv.tv_usec * 1e-6; 696 return tv.tv_sec + tv.tv_usec * 1e-6;
523#endif
524} 697}
698#endif
525 699
526ev_tstamp inline_size 700inline_size ev_tstamp
527get_clock (void) 701get_clock (void)
528{ 702{
529#if EV_USE_MONOTONIC 703#if EV_USE_MONOTONIC
530 if (expect_true (have_monotonic)) 704 if (expect_true (have_monotonic))
531 { 705 {
… …
564 struct timeval tv; 738 struct timeval tv;
565 739
566 tv.tv_sec = (time_t)delay; 740 tv.tv_sec = (time_t)delay;
567 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); 741 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
568 742
743 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744 /* something not guaranteed by newer posix versions, but guaranteed */
745 /* by older ones */
569 select (0, 0, 0, 0, &tv); 746 select (0, 0, 0, 0, &tv);
570#endif 747#endif
571 } 748 }
572} 749}
573 750
574/*****************************************************************************/ 751/*****************************************************************************/
575 752
576#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 753#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
577 754
578int inline_size 755/* find a suitable new size for the given array, */
756/* hopefully by rounding to a ncie-to-malloc size */
757inline_size int
579array_nextsize (int elem, int cur, int cnt) 758array_nextsize (int elem, int cur, int cnt)
580{ 759{
581 int ncur = cur + 1; 760 int ncur = cur + 1;
582 761
583 do 762 do
… …
600array_realloc (int elem, void *base, int *cur, int cnt) 779array_realloc (int elem, void *base, int *cur, int cnt)
601{ 780{
602 *cur = array_nextsize (elem, *cur, cnt); 781 *cur = array_nextsize (elem, *cur, cnt);
603 return ev_realloc (base, elem * *cur); 782 return ev_realloc (base, elem * *cur);
604} 783}
784
785#define array_init_zero(base,count) \
786 memset ((void *)(base), 0, sizeof (*(base)) * (count))
605 787
606#define array_needsize(type,base,cur,cnt,init) \ 788#define array_needsize(type,base,cur,cnt,init) \
607 if (expect_false ((cnt) > (cur))) \ 789 if (expect_false ((cnt) > (cur))) \
608 { \ 790 { \
609 int ocur_ = (cur); \ 791 int ocur_ = (cur); \
… …
621 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 803 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
622 } 804 }
623#endif 805#endif
624 806
625#define array_free(stem, idx) \ 807#define array_free(stem, idx) \
626 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 808 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
627 809
628/*****************************************************************************/ 810/*****************************************************************************/
811
812/* dummy callback for pending events */
813static void noinline
814pendingcb (EV_P_ ev_prepare *w, int revents)
815{
816}
629 817
630void noinline 818void noinline
631ev_feed_event (EV_P_ void *w, int revents) 819ev_feed_event (EV_P_ void *w, int revents)
632{ 820{
633 W w_ = (W)w; 821 W w_ = (W)w;
… …
642 pendings [pri][w_->pending - 1].w = w_; 830 pendings [pri][w_->pending - 1].w = w_;
643 pendings [pri][w_->pending - 1].events = revents; 831 pendings [pri][w_->pending - 1].events = revents;
644 } 832 }
645} 833}
646 834
647void inline_speed 835inline_speed void
836feed_reverse (EV_P_ W w)
837{
838 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2);
839 rfeeds [rfeedcnt++] = w;
840}
841
842inline_size void
843feed_reverse_done (EV_P_ int revents)
844{
845 do
846 ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents);
847 while (rfeedcnt);
848}
849
850inline_speed void
648queue_events (EV_P_ W *events, int eventcnt, int type) 851queue_events (EV_P_ W *events, int eventcnt, int type)
649{ 852{
650 int i; 853 int i;
651 854
652 for (i = 0; i < eventcnt; ++i) 855 for (i = 0; i < eventcnt; ++i)
653 ev_feed_event (EV_A_ events [i], type); 856 ev_feed_event (EV_A_ events [i], type);
654} 857}
655 858
656/*****************************************************************************/ 859/*****************************************************************************/
657 860
658void inline_size 861inline_speed void
659anfds_init (ANFD *base, int count)
660{
661 while (count--)
662 {
663 base->head = 0;
664 base->events = EV_NONE;
665 base->reify = 0;
666
667 ++base;
668 }
669}
670
671void inline_speed
672fd_event (EV_P_ int fd, int revents) 862fd_event_nc (EV_P_ int fd, int revents)
673{ 863{
674 ANFD *anfd = anfds + fd; 864 ANFD *anfd = anfds + fd;
675 ev_io *w; 865 ev_io *w;
676 866
677 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 867 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
681 if (ev) 871 if (ev)
682 ev_feed_event (EV_A_ (W)w, ev); 872 ev_feed_event (EV_A_ (W)w, ev);
683 } 873 }
684} 874}
685 875
876/* do not submit kernel events for fds that have reify set */
877/* because that means they changed while we were polling for new events */
878inline_speed void
879fd_event (EV_P_ int fd, int revents)
880{
881 ANFD *anfd = anfds + fd;
882
883 if (expect_true (!anfd->reify))
884 fd_event_nc (EV_A_ fd, revents);
885}
886
686void 887void
687ev_feed_fd_event (EV_P_ int fd, int revents) 888ev_feed_fd_event (EV_P_ int fd, int revents)
688{ 889{
689 if (fd >= 0 && fd < anfdmax) 890 if (fd >= 0 && fd < anfdmax)
690 fd_event (EV_A_ fd, revents); 891 fd_event_nc (EV_A_ fd, revents);
691} 892}
692 893
693void inline_size 894/* make sure the external fd watch events are in-sync */
895/* with the kernel/libev internal state */
896inline_size void
694fd_reify (EV_P) 897fd_reify (EV_P)
695{ 898{
696 int i; 899 int i;
697 900
698 for (i = 0; i < fdchangecnt; ++i) 901 for (i = 0; i < fdchangecnt; ++i)
… …
707 events |= (unsigned char)w->events; 910 events |= (unsigned char)w->events;
708 911
709#if EV_SELECT_IS_WINSOCKET 912#if EV_SELECT_IS_WINSOCKET
710 if (events) 913 if (events)
711 { 914 {
712 unsigned long argp; 915 unsigned long arg;
713 #ifdef EV_FD_TO_WIN32_HANDLE
714 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 916 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
715 #else
716 anfd->handle = _get_osfhandle (fd);
717 #endif
718 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 917 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
719 } 918 }
720#endif 919#endif
721 920
722 { 921 {
723 unsigned char o_events = anfd->events; 922 unsigned char o_events = anfd->events;
724 unsigned char o_reify = anfd->reify; 923 unsigned char o_reify = anfd->reify;
725 924
726 anfd->reify = 0; 925 anfd->reify = 0;
727 anfd->events = events; 926 anfd->events = events;
728 927
729 if (o_events != events || o_reify & EV_IOFDSET) 928 if (o_events != events || o_reify & EV__IOFDSET)
730 backend_modify (EV_A_ fd, o_events, events); 929 backend_modify (EV_A_ fd, o_events, events);
731 } 930 }
732 } 931 }
733 932
734 fdchangecnt = 0; 933 fdchangecnt = 0;
735} 934}
736 935
737void inline_size 936/* something about the given fd changed */
937inline_size void
738fd_change (EV_P_ int fd, int flags) 938fd_change (EV_P_ int fd, int flags)
739{ 939{
740 unsigned char reify = anfds [fd].reify; 940 unsigned char reify = anfds [fd].reify;
741 anfds [fd].reify |= flags; 941 anfds [fd].reify |= flags;
742 942
… …
746 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 946 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
747 fdchanges [fdchangecnt - 1] = fd; 947 fdchanges [fdchangecnt - 1] = fd;
748 } 948 }
749} 949}
750 950
751void inline_speed 951/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
952inline_speed void
752fd_kill (EV_P_ int fd) 953fd_kill (EV_P_ int fd)
753{ 954{
754 ev_io *w; 955 ev_io *w;
755 956
756 while ((w = (ev_io *)anfds [fd].head)) 957 while ((w = (ev_io *)anfds [fd].head))
… …
758 ev_io_stop (EV_A_ w); 959 ev_io_stop (EV_A_ w);
759 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 960 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
760 } 961 }
761} 962}
762 963
763int inline_size 964/* check whether the given fd is atcually valid, for error recovery */
965inline_size int
764fd_valid (int fd) 966fd_valid (int fd)
765{ 967{
766#ifdef _WIN32 968#ifdef _WIN32
767 return _get_osfhandle (fd) != -1; 969 return _get_osfhandle (fd) != -1;
768#else 970#else
… …
776{ 978{
777 int fd; 979 int fd;
778 980
779 for (fd = 0; fd < anfdmax; ++fd) 981 for (fd = 0; fd < anfdmax; ++fd)
780 if (anfds [fd].events) 982 if (anfds [fd].events)
781 if (!fd_valid (fd) == -1 && errno == EBADF) 983 if (!fd_valid (fd) && errno == EBADF)
782 fd_kill (EV_A_ fd); 984 fd_kill (EV_A_ fd);
783} 985}
784 986
785/* called on ENOMEM in select/poll to kill some fds and retry */ 987/* called on ENOMEM in select/poll to kill some fds and retry */
786static void noinline 988static void noinline
… …
790 992
791 for (fd = anfdmax; fd--; ) 993 for (fd = anfdmax; fd--; )
792 if (anfds [fd].events) 994 if (anfds [fd].events)
793 { 995 {
794 fd_kill (EV_A_ fd); 996 fd_kill (EV_A_ fd);
795 return; 997 break;
796 } 998 }
797} 999}
798 1000
799/* usually called after fork if backend needs to re-arm all fds from scratch */ 1001/* usually called after fork if backend needs to re-arm all fds from scratch */
800static void noinline 1002static void noinline
… …
804 1006
805 for (fd = 0; fd < anfdmax; ++fd) 1007 for (fd = 0; fd < anfdmax; ++fd)
806 if (anfds [fd].events) 1008 if (anfds [fd].events)
807 { 1009 {
808 anfds [fd].events = 0; 1010 anfds [fd].events = 0;
1011 anfds [fd].emask = 0;
809 fd_change (EV_A_ fd, EV_IOFDSET | 1); 1012 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
810 } 1013 }
811} 1014}
812 1015
813/*****************************************************************************/ 1016/*****************************************************************************/
814 1017
… …
830#define HEAP0 (DHEAP - 1) /* index of first element in heap */ 1033#define HEAP0 (DHEAP - 1) /* index of first element in heap */
831#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) 1034#define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0)
832#define UPHEAP_DONE(p,k) ((p) == (k)) 1035#define UPHEAP_DONE(p,k) ((p) == (k))
833 1036
834/* away from the root */ 1037/* away from the root */
835void inline_speed 1038inline_speed void
836downheap (ANHE *heap, int N, int k) 1039downheap (ANHE *heap, int N, int k)
837{ 1040{
838 ANHE he = heap [k]; 1041 ANHE he = heap [k];
839 ANHE *E = heap + N + HEAP0; 1042 ANHE *E = heap + N + HEAP0;
840 1043
… …
880#define HEAP0 1 1083#define HEAP0 1
881#define HPARENT(k) ((k) >> 1) 1084#define HPARENT(k) ((k) >> 1)
882#define UPHEAP_DONE(p,k) (!(p)) 1085#define UPHEAP_DONE(p,k) (!(p))
883 1086
884/* away from the root */ 1087/* away from the root */
885void inline_speed 1088inline_speed void
886downheap (ANHE *heap, int N, int k) 1089downheap (ANHE *heap, int N, int k)
887{ 1090{
888 ANHE he = heap [k]; 1091 ANHE he = heap [k];
889 1092
890 for (;;) 1093 for (;;)
891 { 1094 {
892 int c = k << 1; 1095 int c = k << 1;
893 1096
894 if (c > N + HEAP0 - 1) 1097 if (c >= N + HEAP0)
895 break; 1098 break;
896 1099
897 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1100 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
898 ? 1 : 0; 1101 ? 1 : 0;
899 1102
… …
910 ev_active (ANHE_w (he)) = k; 1113 ev_active (ANHE_w (he)) = k;
911} 1114}
912#endif 1115#endif
913 1116
914/* towards the root */ 1117/* towards the root */
915void inline_speed 1118inline_speed void
916upheap (ANHE *heap, int k) 1119upheap (ANHE *heap, int k)
917{ 1120{
918 ANHE he = heap [k]; 1121 ANHE he = heap [k];
919 1122
920 for (;;) 1123 for (;;)
… …
931 1134
932 heap [k] = he; 1135 heap [k] = he;
933 ev_active (ANHE_w (he)) = k; 1136 ev_active (ANHE_w (he)) = k;
934} 1137}
935 1138
936void inline_size 1139/* move an element suitably so it is in a correct place */
1140inline_size void
937adjustheap (ANHE *heap, int N, int k) 1141adjustheap (ANHE *heap, int N, int k)
938{ 1142{
939 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1143 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
940 upheap (heap, k); 1144 upheap (heap, k);
941 else 1145 else
942 downheap (heap, N, k); 1146 downheap (heap, N, k);
943} 1147}
944 1148
945/* rebuild the heap: this function is used only once and executed rarely */ 1149/* rebuild the heap: this function is used only once and executed rarely */
946void inline_size 1150inline_size void
947reheap (ANHE *heap, int N) 1151reheap (ANHE *heap, int N)
948{ 1152{
949 int i; 1153 int i;
950 1154
951 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ 1155 /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */
… …
954 upheap (heap, i + HEAP0); 1158 upheap (heap, i + HEAP0);
955} 1159}
956 1160
957/*****************************************************************************/ 1161/*****************************************************************************/
958 1162
1163/* associate signal watchers to a signal signal */
959typedef struct 1164typedef struct
960{ 1165{
1166 EV_ATOMIC_T pending;
1167#if EV_MULTIPLICITY
1168 EV_P;
1169#endif
961 WL head; 1170 WL head;
962 EV_ATOMIC_T gotsig;
963} ANSIG; 1171} ANSIG;
964 1172
965static ANSIG *signals; 1173static ANSIG signals [EV_NSIG - 1];
966static int signalmax;
967
968static EV_ATOMIC_T gotsig;
969
970void inline_size
971signals_init (ANSIG *base, int count)
972{
973 while (count--)
974 {
975 base->head = 0;
976 base->gotsig = 0;
977
978 ++base;
979 }
980}
981 1174
982/*****************************************************************************/ 1175/*****************************************************************************/
983 1176
984void inline_speed 1177/* used to prepare libev internal fd's */
1178/* this is not fork-safe */
1179inline_speed void
985fd_intern (int fd) 1180fd_intern (int fd)
986{ 1181{
987#ifdef _WIN32 1182#ifdef _WIN32
988 int arg = 1; 1183 unsigned long arg = 1;
989 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 1184 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
990#else 1185#else
991 fcntl (fd, F_SETFD, FD_CLOEXEC); 1186 fcntl (fd, F_SETFD, FD_CLOEXEC);
992 fcntl (fd, F_SETFL, O_NONBLOCK); 1187 fcntl (fd, F_SETFL, O_NONBLOCK);
993#endif 1188#endif
994} 1189}
995 1190
996static void noinline 1191static void noinline
997evpipe_init (EV_P) 1192evpipe_init (EV_P)
998{ 1193{
999 if (!ev_is_active (&pipeev)) 1194 if (!ev_is_active (&pipe_w))
1000 { 1195 {
1001#if EV_USE_EVENTFD 1196#if EV_USE_EVENTFD
1197 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198 if (evfd < 0 && errno == EINVAL)
1002 if ((evfd = eventfd (0, 0)) >= 0) 1199 evfd = eventfd (0, 0);
1200
1201 if (evfd >= 0)
1003 { 1202 {
1004 evpipe [0] = -1; 1203 evpipe [0] = -1;
1005 fd_intern (evfd); 1204 fd_intern (evfd); /* doing it twice doesn't hurt */
1006 ev_io_set (&pipeev, evfd, EV_READ); 1205 ev_io_set (&pipe_w, evfd, EV_READ);
1007 } 1206 }
1008 else 1207 else
1009#endif 1208#endif
1010 { 1209 {
1011 while (pipe (evpipe)) 1210 while (pipe (evpipe))
1012 syserr ("(libev) error creating signal/async pipe"); 1211 ev_syserr ("(libev) error creating signal/async pipe");
1013 1212
1014 fd_intern (evpipe [0]); 1213 fd_intern (evpipe [0]);
1015 fd_intern (evpipe [1]); 1214 fd_intern (evpipe [1]);
1016 ev_io_set (&pipeev, evpipe [0], EV_READ); 1215 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1017 } 1216 }
1018 1217
1019 ev_io_start (EV_A_ &pipeev); 1218 ev_io_start (EV_A_ &pipe_w);
1020 ev_unref (EV_A); /* watcher should not keep loop alive */ 1219 ev_unref (EV_A); /* watcher should not keep loop alive */
1021 } 1220 }
1022} 1221}
1023 1222
1024void inline_size 1223inline_size void
1025evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1224evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1026{ 1225{
1027 if (!*flag) 1226 if (!*flag)
1028 { 1227 {
1029 int old_errno = errno; /* save errno because write might clobber it */ 1228 int old_errno = errno; /* save errno because write might clobber it */
… …
1042 1241
1043 errno = old_errno; 1242 errno = old_errno;
1044 } 1243 }
1045} 1244}
1046 1245
1246/* called whenever the libev signal pipe */
1247/* got some events (signal, async) */
1047static void 1248static void
1048pipecb (EV_P_ ev_io *iow, int revents) 1249pipecb (EV_P_ ev_io *iow, int revents)
1049{ 1250{
1251 int i;
1252
1050#if EV_USE_EVENTFD 1253#if EV_USE_EVENTFD
1051 if (evfd >= 0) 1254 if (evfd >= 0)
1052 { 1255 {
1053 uint64_t counter; 1256 uint64_t counter;
1054 read (evfd, &counter, sizeof (uint64_t)); 1257 read (evfd, &counter, sizeof (uint64_t));
… …
1058 { 1261 {
1059 char dummy; 1262 char dummy;
1060 read (evpipe [0], &dummy, 1); 1263 read (evpipe [0], &dummy, 1);
1061 } 1264 }
1062 1265
1063 if (gotsig && ev_is_default_loop (EV_A)) 1266 if (sig_pending)
1064 { 1267 {
1065 int signum; 1268 sig_pending = 0;
1066 gotsig = 0;
1067 1269
1068 for (signum = signalmax; signum--; ) 1270 for (i = EV_NSIG - 1; i--; )
1069 if (signals [signum].gotsig) 1271 if (expect_false (signals [i].pending))
1070 ev_feed_signal_event (EV_A_ signum + 1); 1272 ev_feed_signal_event (EV_A_ i + 1);
1071 } 1273 }
1072 1274
1073#if EV_ASYNC_ENABLE 1275#if EV_ASYNC_ENABLE
1074 if (gotasync) 1276 if (async_pending)
1075 { 1277 {
1076 int i; 1278 async_pending = 0;
1077 gotasync = 0;
1078 1279
1079 for (i = asynccnt; i--; ) 1280 for (i = asynccnt; i--; )
1080 if (asyncs [i]->sent) 1281 if (asyncs [i]->sent)
1081 { 1282 {
1082 asyncs [i]->sent = 0; 1283 asyncs [i]->sent = 0;
… …
1090 1291
1091static void 1292static void
1092ev_sighandler (int signum) 1293ev_sighandler (int signum)
1093{ 1294{
1094#if EV_MULTIPLICITY 1295#if EV_MULTIPLICITY
1095 struct ev_loop *loop = &default_loop_struct; 1296 EV_P = signals [signum - 1].loop;
1096#endif 1297#endif
1097 1298
1098#if _WIN32 1299#if _WIN32
1099 signal (signum, ev_sighandler); 1300 signal (signum, ev_sighandler);
1100#endif 1301#endif
1101 1302
1102 signals [signum - 1].gotsig = 1; 1303 signals [signum - 1].pending = 1;
1103 evpipe_write (EV_A_ &gotsig); 1304 evpipe_write (EV_A_ &sig_pending);
1104} 1305}
1105 1306
1106void noinline 1307void noinline
1107ev_feed_signal_event (EV_P_ int signum) 1308ev_feed_signal_event (EV_P_ int signum)
1108{ 1309{
1109 WL w; 1310 WL w;
1110 1311
1312 if (expect_false (signum <= 0 || signum > EV_NSIG))
1313 return;
1314
1315 --signum;
1316
1111#if EV_MULTIPLICITY 1317#if EV_MULTIPLICITY
1112 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1318 /* it is permissible to try to feed a signal to the wrong loop */
1113#endif 1319 /* or, likely more useful, feeding a signal nobody is waiting for */
1114 1320
1115 --signum; 1321 if (expect_false (signals [signum].loop != EV_A))
1116
1117 if (signum < 0 || signum >= signalmax)
1118 return; 1322 return;
1323#endif
1119 1324
1120 signals [signum].gotsig = 0; 1325 signals [signum].pending = 0;
1121 1326
1122 for (w = signals [signum].head; w; w = w->next) 1327 for (w = signals [signum].head; w; w = w->next)
1123 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1328 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1124} 1329}
1125 1330
1331#if EV_USE_SIGNALFD
1332static void
1333sigfdcb (EV_P_ ev_io *iow, int revents)
1334{
1335 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1336
1337 for (;;)
1338 {
1339 ssize_t res = read (sigfd, si, sizeof (si));
1340
1341 /* not ISO-C, as res might be -1, but works with SuS */
1342 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1343 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1344
1345 if (res < (ssize_t)sizeof (si))
1346 break;
1347 }
1348}
1349#endif
1350
1126/*****************************************************************************/ 1351/*****************************************************************************/
1127 1352
1128static WL childs [EV_PID_HASHSIZE]; 1353static WL childs [EV_PID_HASHSIZE];
1129 1354
1130#ifndef _WIN32 1355#ifndef _WIN32
… …
1133 1358
1134#ifndef WIFCONTINUED 1359#ifndef WIFCONTINUED
1135# define WIFCONTINUED(status) 0 1360# define WIFCONTINUED(status) 0
1136#endif 1361#endif
1137 1362
1138void inline_speed 1363/* handle a single child status event */
1364inline_speed void
1139child_reap (EV_P_ int chain, int pid, int status) 1365child_reap (EV_P_ int chain, int pid, int status)
1140{ 1366{
1141 ev_child *w; 1367 ev_child *w;
1142 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1368 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1143 1369
… …
1156 1382
1157#ifndef WCONTINUED 1383#ifndef WCONTINUED
1158# define WCONTINUED 0 1384# define WCONTINUED 0
1159#endif 1385#endif
1160 1386
1387/* called on sigchld etc., calls waitpid */
1161static void 1388static void
1162childcb (EV_P_ ev_signal *sw, int revents) 1389childcb (EV_P_ ev_signal *sw, int revents)
1163{ 1390{
1164 int pid, status; 1391 int pid, status;
1165 1392
… …
1246 /* kqueue is borked on everything but netbsd apparently */ 1473 /* kqueue is borked on everything but netbsd apparently */
1247 /* it usually doesn't work correctly on anything but sockets and pipes */ 1474 /* it usually doesn't work correctly on anything but sockets and pipes */
1248 flags &= ~EVBACKEND_KQUEUE; 1475 flags &= ~EVBACKEND_KQUEUE;
1249#endif 1476#endif
1250#ifdef __APPLE__ 1477#ifdef __APPLE__
1251 // flags &= ~EVBACKEND_KQUEUE; for documentation 1478 /* only select works correctly on that "unix-certified" platform */
1252 flags &= ~EVBACKEND_POLL; 1479 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1253#endif 1481#endif
1254 1482
1255 return flags; 1483 return flags;
1256} 1484}
1257 1485
… …
1271ev_backend (EV_P) 1499ev_backend (EV_P)
1272{ 1500{
1273 return backend; 1501 return backend;
1274} 1502}
1275 1503
1504#if EV_MINIMAL < 2
1276unsigned int 1505unsigned int
1277ev_loop_count (EV_P) 1506ev_loop_count (EV_P)
1278{ 1507{
1279 return loop_count; 1508 return loop_count;
1280} 1509}
1281 1510
1511unsigned int
1512ev_loop_depth (EV_P)
1513{
1514 return loop_depth;
1515}
1516
1282void 1517void
1283ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1518ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1284{ 1519{
1285 io_blocktime = interval; 1520 io_blocktime = interval;
1286} 1521}
… …
1289ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1524ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1290{ 1525{
1291 timeout_blocktime = interval; 1526 timeout_blocktime = interval;
1292} 1527}
1293 1528
1529void
1530ev_set_userdata (EV_P_ void *data)
1531{
1532 userdata = data;
1533}
1534
1535void *
1536ev_userdata (EV_P)
1537{
1538 return userdata;
1539}
1540
1541void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1542{
1543 invoke_cb = invoke_pending_cb;
1544}
1545
1546void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1547{
1548 release_cb = release;
1549 acquire_cb = acquire;
1550}
1551#endif
1552
1553/* initialise a loop structure, must be zero-initialised */
1294static void noinline 1554static void noinline
1295loop_init (EV_P_ unsigned int flags) 1555loop_init (EV_P_ unsigned int flags)
1296{ 1556{
1297 if (!backend) 1557 if (!backend)
1298 { 1558 {
1559#if EV_USE_REALTIME
1560 if (!have_realtime)
1561 {
1562 struct timespec ts;
1563
1564 if (!clock_gettime (CLOCK_REALTIME, &ts))
1565 have_realtime = 1;
1566 }
1567#endif
1568
1299#if EV_USE_MONOTONIC 1569#if EV_USE_MONOTONIC
1570 if (!have_monotonic)
1300 { 1571 {
1301 struct timespec ts; 1572 struct timespec ts;
1573
1302 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1574 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1303 have_monotonic = 1; 1575 have_monotonic = 1;
1304 } 1576 }
1305#endif 1577#endif
1578
1579 /* pid check not overridable via env */
1580#ifndef _WIN32
1581 if (flags & EVFLAG_FORKCHECK)
1582 curpid = getpid ();
1583#endif
1584
1585 if (!(flags & EVFLAG_NOENV)
1586 && !enable_secure ()
1587 && getenv ("LIBEV_FLAGS"))
1588 flags = atoi (getenv ("LIBEV_FLAGS"));
1306 1589
1307 ev_rt_now = ev_time (); 1590 ev_rt_now = ev_time ();
1308 mn_now = get_clock (); 1591 mn_now = get_clock ();
1309 now_floor = mn_now; 1592 now_floor = mn_now;
1310 rtmn_diff = ev_rt_now - mn_now; 1593 rtmn_diff = ev_rt_now - mn_now;
1594#if EV_MINIMAL < 2
1595 invoke_cb = ev_invoke_pending;
1596#endif
1311 1597
1312 io_blocktime = 0.; 1598 io_blocktime = 0.;
1313 timeout_blocktime = 0.; 1599 timeout_blocktime = 0.;
1314 backend = 0; 1600 backend = 0;
1315 backend_fd = -1; 1601 backend_fd = -1;
1316 gotasync = 0; 1602 sig_pending = 0;
1603#if EV_ASYNC_ENABLE
1604 async_pending = 0;
1605#endif
1317#if EV_USE_INOTIFY 1606#if EV_USE_INOTIFY
1318 fs_fd = -2; 1607 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1319#endif 1608#endif
1320 1609#if EV_USE_SIGNALFD
1321 /* pid check not overridable via env */ 1610 sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2;
1322#ifndef _WIN32
1323 if (flags & EVFLAG_FORKCHECK)
1324 curpid = getpid ();
1325#endif 1611#endif
1326
1327 if (!(flags & EVFLAG_NOENV)
1328 && !enable_secure ()
1329 && getenv ("LIBEV_FLAGS"))
1330 flags = atoi (getenv ("LIBEV_FLAGS"));
1331 1612
1332 if (!(flags & 0x0000ffffU)) 1613 if (!(flags & 0x0000ffffU))
1333 flags |= ev_recommended_backends (); 1614 flags |= ev_recommended_backends ();
1334 1615
1335#if EV_USE_PORT 1616#if EV_USE_PORT
… …
1346#endif 1627#endif
1347#if EV_USE_SELECT 1628#if EV_USE_SELECT
1348 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1629 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1349#endif 1630#endif
1350 1631
1632 ev_prepare_init (&pending_w, pendingcb);
1633
1351 ev_init (&pipeev, pipecb); 1634 ev_init (&pipe_w, pipecb);
1352 ev_set_priority (&pipeev, EV_MAXPRI); 1635 ev_set_priority (&pipe_w, EV_MAXPRI);
1353 } 1636 }
1354} 1637}
1355 1638
1639/* free up a loop structure */
1356static void noinline 1640static void noinline
1357loop_destroy (EV_P) 1641loop_destroy (EV_P)
1358{ 1642{
1359 int i; 1643 int i;
1360 1644
1361 if (ev_is_active (&pipeev)) 1645 if (ev_is_active (&pipe_w))
1362 { 1646 {
1363 ev_ref (EV_A); /* signal watcher */ 1647 /*ev_ref (EV_A);*/
1364 ev_io_stop (EV_A_ &pipeev); 1648 /*ev_io_stop (EV_A_ &pipe_w);*/
1365 1649
1366#if EV_USE_EVENTFD 1650#if EV_USE_EVENTFD
1367 if (evfd >= 0) 1651 if (evfd >= 0)
1368 close (evfd); 1652 close (evfd);
1369#endif 1653#endif
1370 1654
1371 if (evpipe [0] >= 0) 1655 if (evpipe [0] >= 0)
1372 { 1656 {
1373 close (evpipe [0]); 1657 EV_WIN32_CLOSE_FD (evpipe [0]);
1374 close (evpipe [1]); 1658 EV_WIN32_CLOSE_FD (evpipe [1]);
1375 } 1659 }
1376 } 1660 }
1661
1662#if EV_USE_SIGNALFD
1663 if (ev_is_active (&sigfd_w))
1664 close (sigfd);
1665#endif
1377 1666
1378#if EV_USE_INOTIFY 1667#if EV_USE_INOTIFY
1379 if (fs_fd >= 0) 1668 if (fs_fd >= 0)
1380 close (fs_fd); 1669 close (fs_fd);
1381#endif 1670#endif
… …
1405#if EV_IDLE_ENABLE 1694#if EV_IDLE_ENABLE
1406 array_free (idle, [i]); 1695 array_free (idle, [i]);
1407#endif 1696#endif
1408 } 1697 }
1409 1698
1410 ev_free (anfds); anfdmax = 0; 1699 ev_free (anfds); anfds = 0; anfdmax = 0;
1411 1700
1412 /* have to use the microsoft-never-gets-it-right macro */ 1701 /* have to use the microsoft-never-gets-it-right macro */
1702 array_free (rfeed, EMPTY);
1413 array_free (fdchange, EMPTY); 1703 array_free (fdchange, EMPTY);
1414 array_free (timer, EMPTY); 1704 array_free (timer, EMPTY);
1415#if EV_PERIODIC_ENABLE 1705#if EV_PERIODIC_ENABLE
1416 array_free (periodic, EMPTY); 1706 array_free (periodic, EMPTY);
1417#endif 1707#endif
… …
1426 1716
1427 backend = 0; 1717 backend = 0;
1428} 1718}
1429 1719
1430#if EV_USE_INOTIFY 1720#if EV_USE_INOTIFY
1431void inline_size infy_fork (EV_P); 1721inline_size void infy_fork (EV_P);
1432#endif 1722#endif
1433 1723
1434void inline_size 1724inline_size void
1435loop_fork (EV_P) 1725loop_fork (EV_P)
1436{ 1726{
1437#if EV_USE_PORT 1727#if EV_USE_PORT
1438 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 1728 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1439#endif 1729#endif
… …
1445#endif 1735#endif
1446#if EV_USE_INOTIFY 1736#if EV_USE_INOTIFY
1447 infy_fork (EV_A); 1737 infy_fork (EV_A);
1448#endif 1738#endif
1449 1739
1450 if (ev_is_active (&pipeev)) 1740 if (ev_is_active (&pipe_w))
1451 { 1741 {
1452 /* this "locks" the handlers against writing to the pipe */ 1742 /* this "locks" the handlers against writing to the pipe */
1453 /* while we modify the fd vars */ 1743 /* while we modify the fd vars */
1454 gotsig = 1; 1744 sig_pending = 1;
1455#if EV_ASYNC_ENABLE 1745#if EV_ASYNC_ENABLE
1456 gotasync = 1; 1746 async_pending = 1;
1457#endif 1747#endif
1458 1748
1459 ev_ref (EV_A); 1749 ev_ref (EV_A);
1460 ev_io_stop (EV_A_ &pipeev); 1750 ev_io_stop (EV_A_ &pipe_w);
1461 1751
1462#if EV_USE_EVENTFD 1752#if EV_USE_EVENTFD
1463 if (evfd >= 0) 1753 if (evfd >= 0)
1464 close (evfd); 1754 close (evfd);
1465#endif 1755#endif
1466 1756
1467 if (evpipe [0] >= 0) 1757 if (evpipe [0] >= 0)
1468 { 1758 {
1469 close (evpipe [0]); 1759 EV_WIN32_CLOSE_FD (evpipe [0]);
1470 close (evpipe [1]); 1760 EV_WIN32_CLOSE_FD (evpipe [1]);
1471 } 1761 }
1472 1762
1473 evpipe_init (EV_A); 1763 evpipe_init (EV_A);
1474 /* now iterate over everything, in case we missed something */ 1764 /* now iterate over everything, in case we missed something */
1475 pipecb (EV_A_ &pipeev, EV_READ); 1765 pipecb (EV_A_ &pipe_w, EV_READ);
1476 } 1766 }
1477 1767
1478 postfork = 0; 1768 postfork = 0;
1479} 1769}
1480 1770
1481#if EV_MULTIPLICITY 1771#if EV_MULTIPLICITY
1482 1772
1483struct ev_loop * 1773struct ev_loop *
1484ev_loop_new (unsigned int flags) 1774ev_loop_new (unsigned int flags)
1485{ 1775{
1486 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1776 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1487 1777
1488 memset (loop, 0, sizeof (struct ev_loop)); 1778 memset (EV_A, 0, sizeof (struct ev_loop));
1489
1490 loop_init (EV_A_ flags); 1779 loop_init (EV_A_ flags);
1491 1780
1492 if (ev_backend (EV_A)) 1781 if (ev_backend (EV_A))
1493 return loop; 1782 return EV_A;
1494 1783
1495 return 0; 1784 return 0;
1496} 1785}
1497 1786
1498void 1787void
… …
1505void 1794void
1506ev_loop_fork (EV_P) 1795ev_loop_fork (EV_P)
1507{ 1796{
1508 postfork = 1; /* must be in line with ev_default_fork */ 1797 postfork = 1; /* must be in line with ev_default_fork */
1509} 1798}
1799#endif /* multiplicity */
1510 1800
1511#if EV_VERIFY 1801#if EV_VERIFY
1512void noinline 1802static void noinline
1513verify_watcher (EV_P_ W w) 1803verify_watcher (EV_P_ W w)
1514{ 1804{
1515 assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 1805 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1516 1806
1517 if (w->pending) 1807 if (w->pending)
1518 assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 1808 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1519} 1809}
1520 1810
1521static void noinline 1811static void noinline
1522verify_heap (EV_P_ ANHE *heap, int N) 1812verify_heap (EV_P_ ANHE *heap, int N)
1523{ 1813{
1524 int i; 1814 int i;
1525 1815
1526 for (i = HEAP0; i < N + HEAP0; ++i) 1816 for (i = HEAP0; i < N + HEAP0; ++i)
1527 { 1817 {
1528 assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); 1818 assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i));
1529 assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); 1819 assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i])));
1530 assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); 1820 assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i]))));
1531 1821
1532 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 1822 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1533 } 1823 }
1534} 1824}
1535 1825
1536static void noinline 1826static void noinline
1537array_verify (EV_P_ W *ws, int cnt) 1827array_verify (EV_P_ W *ws, int cnt)
1538{ 1828{
1539 while (cnt--) 1829 while (cnt--)
1540 { 1830 {
1541 assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 1831 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1542 verify_watcher (EV_A_ ws [cnt]); 1832 verify_watcher (EV_A_ ws [cnt]);
1543 } 1833 }
1544} 1834}
1545#endif 1835#endif
1546 1836
1837#if EV_MINIMAL < 2
1547void 1838void
1548ev_loop_verify (EV_P) 1839ev_loop_verify (EV_P)
1549{ 1840{
1550#if EV_VERIFY 1841#if EV_VERIFY
1551 int i; 1842 int i;
… …
1553 1844
1554 assert (activecnt >= -1); 1845 assert (activecnt >= -1);
1555 1846
1556 assert (fdchangemax >= fdchangecnt); 1847 assert (fdchangemax >= fdchangecnt);
1557 for (i = 0; i < fdchangecnt; ++i) 1848 for (i = 0; i < fdchangecnt; ++i)
1558 assert (("negative fd in fdchanges", fdchanges [i] >= 0)); 1849 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1559 1850
1560 assert (anfdmax >= 0); 1851 assert (anfdmax >= 0);
1561 for (i = 0; i < anfdmax; ++i) 1852 for (i = 0; i < anfdmax; ++i)
1562 for (w = anfds [i].head; w; w = w->next) 1853 for (w = anfds [i].head; w; w = w->next)
1563 { 1854 {
1564 verify_watcher (EV_A_ (W)w); 1855 verify_watcher (EV_A_ (W)w);
1565 assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); 1856 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1566 assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 1857 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1567 } 1858 }
1568 1859
1569 assert (timermax >= timercnt); 1860 assert (timermax >= timercnt);
1570 verify_heap (EV_A_ timers, timercnt); 1861 verify_heap (EV_A_ timers, timercnt);
1571 1862
… …
1600 assert (checkmax >= checkcnt); 1891 assert (checkmax >= checkcnt);
1601 array_verify (EV_A_ (W *)checks, checkcnt); 1892 array_verify (EV_A_ (W *)checks, checkcnt);
1602 1893
1603# if 0 1894# if 0
1604 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1895 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
1605 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 1896 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
1606# endif
1607#endif 1897# endif
1898#endif
1608} 1899}
1609 1900#endif
1610#endif /* multiplicity */
1611 1901
1612#if EV_MULTIPLICITY 1902#if EV_MULTIPLICITY
1613struct ev_loop * 1903struct ev_loop *
1614ev_default_loop_init (unsigned int flags) 1904ev_default_loop_init (unsigned int flags)
1615#else 1905#else
… …
1618#endif 1908#endif
1619{ 1909{
1620 if (!ev_default_loop_ptr) 1910 if (!ev_default_loop_ptr)
1621 { 1911 {
1622#if EV_MULTIPLICITY 1912#if EV_MULTIPLICITY
1623 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 1913 EV_P = ev_default_loop_ptr = &default_loop_struct;
1624#else 1914#else
1625 ev_default_loop_ptr = 1; 1915 ev_default_loop_ptr = 1;
1626#endif 1916#endif
1627 1917
1628 loop_init (EV_A_ flags); 1918 loop_init (EV_A_ flags);
… …
1645 1935
1646void 1936void
1647ev_default_destroy (void) 1937ev_default_destroy (void)
1648{ 1938{
1649#if EV_MULTIPLICITY 1939#if EV_MULTIPLICITY
1650 struct ev_loop *loop = ev_default_loop_ptr; 1940 EV_P = ev_default_loop_ptr;
1651#endif 1941#endif
1942
1943 ev_default_loop_ptr = 0;
1652 1944
1653#ifndef _WIN32 1945#ifndef _WIN32
1654 ev_ref (EV_A); /* child watcher */ 1946 ev_ref (EV_A); /* child watcher */
1655 ev_signal_stop (EV_A_ &childev); 1947 ev_signal_stop (EV_A_ &childev);
1656#endif 1948#endif
… …
1660 1952
1661void 1953void
1662ev_default_fork (void) 1954ev_default_fork (void)
1663{ 1955{
1664#if EV_MULTIPLICITY 1956#if EV_MULTIPLICITY
1665 struct ev_loop *loop = ev_default_loop_ptr; 1957 EV_P = ev_default_loop_ptr;
1666#endif 1958#endif
1667 1959
1668 if (backend)
1669 postfork = 1; /* must be in line with ev_loop_fork */ 1960 postfork = 1; /* must be in line with ev_loop_fork */
1670} 1961}
1671 1962
1672/*****************************************************************************/ 1963/*****************************************************************************/
1673 1964
1674void 1965void
1675ev_invoke (EV_P_ void *w, int revents) 1966ev_invoke (EV_P_ void *w, int revents)
1676{ 1967{
1677 EV_CB_INVOKE ((W)w, revents); 1968 EV_CB_INVOKE ((W)w, revents);
1678} 1969}
1679 1970
1680void inline_speed 1971unsigned int
1681call_pending (EV_P) 1972ev_pending_count (EV_P)
1973{
1974 int pri;
1975 unsigned int count = 0;
1976
1977 for (pri = NUMPRI; pri--; )
1978 count += pendingcnt [pri];
1979
1980 return count;
1981}
1982
1983void noinline
1984ev_invoke_pending (EV_P)
1682{ 1985{
1683 int pri; 1986 int pri;
1684 1987
1685 for (pri = NUMPRI; pri--; ) 1988 for (pri = NUMPRI; pri--; )
1686 while (pendingcnt [pri]) 1989 while (pendingcnt [pri])
1687 { 1990 {
1688 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1991 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1689 1992
1690 if (expect_true (p->w))
1691 {
1692 /*assert (("non-pending watcher on pending list", p->w->pending));*/ 1993 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1994 /* ^ this is no longer true, as pending_w could be here */
1693 1995
1694 p->w->pending = 0; 1996 p->w->pending = 0;
1695 EV_CB_INVOKE (p->w, p->events); 1997 EV_CB_INVOKE (p->w, p->events);
1696 EV_FREQUENT_CHECK; 1998 EV_FREQUENT_CHECK;
1697 }
1698 } 1999 }
1699} 2000}
1700 2001
1701#if EV_IDLE_ENABLE 2002#if EV_IDLE_ENABLE
1702void inline_size 2003/* make idle watchers pending. this handles the "call-idle */
2004/* only when higher priorities are idle" logic */
2005inline_size void
1703idle_reify (EV_P) 2006idle_reify (EV_P)
1704{ 2007{
1705 if (expect_false (idleall)) 2008 if (expect_false (idleall))
1706 { 2009 {
1707 int pri; 2010 int pri;
… …
1719 } 2022 }
1720 } 2023 }
1721} 2024}
1722#endif 2025#endif
1723 2026
1724void inline_size 2027/* make timers pending */
2028inline_size void
1725timers_reify (EV_P) 2029timers_reify (EV_P)
1726{ 2030{
1727 EV_FREQUENT_CHECK; 2031 EV_FREQUENT_CHECK;
1728 2032
1729 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) 2033 if (timercnt && ANHE_at (timers [HEAP0]) < mn_now)
1730 { 2034 {
1731 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); 2035 do
1732
1733 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1734
1735 /* first reschedule or stop timer */
1736 if (w->repeat)
1737 { 2036 {
2037 ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]);
2038
2039 /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/
2040
2041 /* first reschedule or stop timer */
2042 if (w->repeat)
2043 {
1738 ev_at (w) += w->repeat; 2044 ev_at (w) += w->repeat;
1739 if (ev_at (w) < mn_now) 2045 if (ev_at (w) < mn_now)
1740 ev_at (w) = mn_now; 2046 ev_at (w) = mn_now;
1741 2047
1742 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 2048 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1743 2049
1744 ANHE_at_cache (timers [HEAP0]); 2050 ANHE_at_cache (timers [HEAP0]);
1745 downheap (timers, timercnt, HEAP0); 2051 downheap (timers, timercnt, HEAP0);
2052 }
2053 else
2054 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
2055
2056 EV_FREQUENT_CHECK;
2057 feed_reverse (EV_A_ (W)w);
1746 } 2058 }
1747 else 2059 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1748 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1749 2060
1750 EV_FREQUENT_CHECK;
1751 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 2061 feed_reverse_done (EV_A_ EV_TIMEOUT);
1752 } 2062 }
1753} 2063}
1754 2064
1755#if EV_PERIODIC_ENABLE 2065#if EV_PERIODIC_ENABLE
1756void inline_size 2066/* make periodics pending */
2067inline_size void
1757periodics_reify (EV_P) 2068periodics_reify (EV_P)
1758{ 2069{
1759 EV_FREQUENT_CHECK; 2070 EV_FREQUENT_CHECK;
1760 2071
1761 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2072 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
1762 { 2073 {
1763 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2074 int feed_count = 0;
1764 2075
1765 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ 2076 do
1766
1767 /* first reschedule or stop timer */
1768 if (w->reschedule_cb)
1769 { 2077 {
2078 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2079
2080 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
2081
2082 /* first reschedule or stop timer */
2083 if (w->reschedule_cb)
2084 {
1770 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2085 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1771 2086
1772 assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); 2087 assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now));
1773 2088
1774 ANHE_at_cache (periodics [HEAP0]); 2089 ANHE_at_cache (periodics [HEAP0]);
1775 downheap (periodics, periodiccnt, HEAP0); 2090 downheap (periodics, periodiccnt, HEAP0);
2091 }
2092 else if (w->interval)
2093 {
2094 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2095 /* if next trigger time is not sufficiently in the future, put it there */
2096 /* this might happen because of floating point inexactness */
2097 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2098 {
2099 ev_at (w) += w->interval;
2100
2101 /* if interval is unreasonably low we might still have a time in the past */
2102 /* so correct this. this will make the periodic very inexact, but the user */
2103 /* has effectively asked to get triggered more often than possible */
2104 if (ev_at (w) < ev_rt_now)
2105 ev_at (w) = ev_rt_now;
2106 }
2107
2108 ANHE_at_cache (periodics [HEAP0]);
2109 downheap (periodics, periodiccnt, HEAP0);
2110 }
2111 else
2112 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
2113
2114 EV_FREQUENT_CHECK;
2115 feed_reverse (EV_A_ (W)w);
1776 } 2116 }
1777 else if (w->interval) 2117 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now);
1778 {
1779 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1780 /* if next trigger time is not sufficiently in the future, put it there */
1781 /* this might happen because of floating point inexactness */
1782 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1783 {
1784 ev_at (w) += w->interval;
1785 2118
1786 /* if interval is unreasonably low we might still have a time in the past */
1787 /* so correct this. this will make the periodic very inexact, but the user */
1788 /* has effectively asked to get triggered more often than possible */
1789 if (ev_at (w) < ev_rt_now)
1790 ev_at (w) = ev_rt_now;
1791 }
1792
1793 ANHE_at_cache (periodics [HEAP0]);
1794 downheap (periodics, periodiccnt, HEAP0);
1795 }
1796 else
1797 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1798
1799 EV_FREQUENT_CHECK;
1800 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 2119 feed_reverse_done (EV_A_ EV_PERIODIC);
1801 } 2120 }
1802} 2121}
1803 2122
2123/* simply recalculate all periodics */
2124/* TODO: maybe ensure that at leats one event happens when jumping forward? */
1804static void noinline 2125static void noinline
1805periodics_reschedule (EV_P) 2126periodics_reschedule (EV_P)
1806{ 2127{
1807 int i; 2128 int i;
1808 2129
… …
1821 2142
1822 reheap (periodics, periodiccnt); 2143 reheap (periodics, periodiccnt);
1823} 2144}
1824#endif 2145#endif
1825 2146
1826void inline_speed 2147/* adjust all timers by a given offset */
2148static void noinline
2149timers_reschedule (EV_P_ ev_tstamp adjust)
2150{
2151 int i;
2152
2153 for (i = 0; i < timercnt; ++i)
2154 {
2155 ANHE *he = timers + i + HEAP0;
2156 ANHE_w (*he)->at += adjust;
2157 ANHE_at_cache (*he);
2158 }
2159}
2160
2161/* fetch new monotonic and realtime times from the kernel */
2162/* also detetc if there was a timejump, and act accordingly */
2163inline_speed void
1827time_update (EV_P_ ev_tstamp max_block) 2164time_update (EV_P_ ev_tstamp max_block)
1828{ 2165{
1829 int i;
1830
1831#if EV_USE_MONOTONIC 2166#if EV_USE_MONOTONIC
1832 if (expect_true (have_monotonic)) 2167 if (expect_true (have_monotonic))
1833 { 2168 {
2169 int i;
1834 ev_tstamp odiff = rtmn_diff; 2170 ev_tstamp odiff = rtmn_diff;
1835 2171
1836 mn_now = get_clock (); 2172 mn_now = get_clock ();
1837 2173
1838 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 2174 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
… …
1864 ev_rt_now = ev_time (); 2200 ev_rt_now = ev_time ();
1865 mn_now = get_clock (); 2201 mn_now = get_clock ();
1866 now_floor = mn_now; 2202 now_floor = mn_now;
1867 } 2203 }
1868 2204
2205 /* no timer adjustment, as the monotonic clock doesn't jump */
2206 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1869# if EV_PERIODIC_ENABLE 2207# if EV_PERIODIC_ENABLE
1870 periodics_reschedule (EV_A); 2208 periodics_reschedule (EV_A);
1871# endif 2209# endif
1872 /* no timer adjustment, as the monotonic clock doesn't jump */
1873 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1874 } 2210 }
1875 else 2211 else
1876#endif 2212#endif
1877 { 2213 {
1878 ev_rt_now = ev_time (); 2214 ev_rt_now = ev_time ();
1879 2215
1880 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 2216 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1881 { 2217 {
2218 /* adjust timers. this is easy, as the offset is the same for all of them */
2219 timers_reschedule (EV_A_ ev_rt_now - mn_now);
1882#if EV_PERIODIC_ENABLE 2220#if EV_PERIODIC_ENABLE
1883 periodics_reschedule (EV_A); 2221 periodics_reschedule (EV_A);
1884#endif 2222#endif
1885 /* adjust timers. this is easy, as the offset is the same for all of them */
1886 for (i = 0; i < timercnt; ++i)
1887 {
1888 ANHE *he = timers + i + HEAP0;
1889 ANHE_w (*he)->at += ev_rt_now - mn_now;
1890 ANHE_at_cache (*he);
1891 }
1892 } 2223 }
1893 2224
1894 mn_now = ev_rt_now; 2225 mn_now = ev_rt_now;
1895 } 2226 }
1896} 2227}
1897 2228
1898void 2229void
1899ev_ref (EV_P)
1900{
1901 ++activecnt;
1902}
1903
1904void
1905ev_unref (EV_P)
1906{
1907 --activecnt;
1908}
1909
1910static int loop_done;
1911
1912void
1913ev_loop (EV_P_ int flags) 2230ev_loop (EV_P_ int flags)
1914{ 2231{
2232#if EV_MINIMAL < 2
2233 ++loop_depth;
2234#endif
2235
2236 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE));
2237
1915 loop_done = EVUNLOOP_CANCEL; 2238 loop_done = EVUNLOOP_CANCEL;
1916 2239
1917 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2240 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
1918 2241
1919 do 2242 do
1920 { 2243 {
1921#if EV_VERIFY >= 2 2244#if EV_VERIFY >= 2
1922 ev_loop_verify (EV_A); 2245 ev_loop_verify (EV_A);
… …
1935 /* we might have forked, so queue fork handlers */ 2258 /* we might have forked, so queue fork handlers */
1936 if (expect_false (postfork)) 2259 if (expect_false (postfork))
1937 if (forkcnt) 2260 if (forkcnt)
1938 { 2261 {
1939 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2262 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1940 call_pending (EV_A); 2263 EV_INVOKE_PENDING;
1941 } 2264 }
1942#endif 2265#endif
1943 2266
1944 /* queue prepare watchers (and execute them) */ 2267 /* queue prepare watchers (and execute them) */
1945 if (expect_false (preparecnt)) 2268 if (expect_false (preparecnt))
1946 { 2269 {
1947 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2270 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1948 call_pending (EV_A); 2271 EV_INVOKE_PENDING;
1949 } 2272 }
1950 2273
1951 if (expect_false (!activecnt)) 2274 if (expect_false (loop_done))
1952 break; 2275 break;
1953 2276
1954 /* we might have forked, so reify kernel state if necessary */ 2277 /* we might have forked, so reify kernel state if necessary */
1955 if (expect_false (postfork)) 2278 if (expect_false (postfork))
1956 loop_fork (EV_A); 2279 loop_fork (EV_A);
… …
1963 ev_tstamp waittime = 0.; 2286 ev_tstamp waittime = 0.;
1964 ev_tstamp sleeptime = 0.; 2287 ev_tstamp sleeptime = 0.;
1965 2288
1966 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2289 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1967 { 2290 {
2291 /* remember old timestamp for io_blocktime calculation */
2292 ev_tstamp prev_mn_now = mn_now;
2293
1968 /* update time to cancel out callback processing overhead */ 2294 /* update time to cancel out callback processing overhead */
1969 time_update (EV_A_ 1e100); 2295 time_update (EV_A_ 1e100);
1970 2296
1971 waittime = MAX_BLOCKTIME; 2297 waittime = MAX_BLOCKTIME;
1972 2298
… …
1982 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2308 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge;
1983 if (waittime > to) waittime = to; 2309 if (waittime > to) waittime = to;
1984 } 2310 }
1985#endif 2311#endif
1986 2312
2313 /* don't let timeouts decrease the waittime below timeout_blocktime */
1987 if (expect_false (waittime < timeout_blocktime)) 2314 if (expect_false (waittime < timeout_blocktime))
1988 waittime = timeout_blocktime; 2315 waittime = timeout_blocktime;
1989 2316
1990 sleeptime = waittime - backend_fudge; 2317 /* extra check because io_blocktime is commonly 0 */
1991
1992 if (expect_true (sleeptime > io_blocktime)) 2318 if (expect_false (io_blocktime))
1993 sleeptime = io_blocktime;
1994
1995 if (sleeptime)
1996 { 2319 {
2320 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2321
2322 if (sleeptime > waittime - backend_fudge)
2323 sleeptime = waittime - backend_fudge;
2324
2325 if (expect_true (sleeptime > 0.))
2326 {
1997 ev_sleep (sleeptime); 2327 ev_sleep (sleeptime);
1998 waittime -= sleeptime; 2328 waittime -= sleeptime;
2329 }
1999 } 2330 }
2000 } 2331 }
2001 2332
2333#if EV_MINIMAL < 2
2002 ++loop_count; 2334 ++loop_count;
2335#endif
2336 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */
2003 backend_poll (EV_A_ waittime); 2337 backend_poll (EV_A_ waittime);
2338 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */
2004 2339
2005 /* update ev_rt_now, do magic */ 2340 /* update ev_rt_now, do magic */
2006 time_update (EV_A_ waittime + sleeptime); 2341 time_update (EV_A_ waittime + sleeptime);
2007 } 2342 }
2008 2343
… …
2019 2354
2020 /* queue check watchers, to be executed first */ 2355 /* queue check watchers, to be executed first */
2021 if (expect_false (checkcnt)) 2356 if (expect_false (checkcnt))
2022 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2357 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2023 2358
2024 call_pending (EV_A); 2359 EV_INVOKE_PENDING;
2025 } 2360 }
2026 while (expect_true ( 2361 while (expect_true (
2027 activecnt 2362 activecnt
2028 && !loop_done 2363 && !loop_done
2029 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2364 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK))
2030 )); 2365 ));
2031 2366
2032 if (loop_done == EVUNLOOP_ONE) 2367 if (loop_done == EVUNLOOP_ONE)
2033 loop_done = EVUNLOOP_CANCEL; 2368 loop_done = EVUNLOOP_CANCEL;
2369
2370#if EV_MINIMAL < 2
2371 --loop_depth;
2372#endif
2034} 2373}
2035 2374
2036void 2375void
2037ev_unloop (EV_P_ int how) 2376ev_unloop (EV_P_ int how)
2038{ 2377{
2039 loop_done = how; 2378 loop_done = how;
2040} 2379}
2041 2380
2381void
2382ev_ref (EV_P)
2383{
2384 ++activecnt;
2385}
2386
2387void
2388ev_unref (EV_P)
2389{
2390 --activecnt;
2391}
2392
2393void
2394ev_now_update (EV_P)
2395{
2396 time_update (EV_A_ 1e100);
2397}
2398
2399void
2400ev_suspend (EV_P)
2401{
2402 ev_now_update (EV_A);
2403}
2404
2405void
2406ev_resume (EV_P)
2407{
2408 ev_tstamp mn_prev = mn_now;
2409
2410 ev_now_update (EV_A);
2411 timers_reschedule (EV_A_ mn_now - mn_prev);
2412#if EV_PERIODIC_ENABLE
2413 /* TODO: really do this? */
2414 periodics_reschedule (EV_A);
2415#endif
2416}
2417
2042/*****************************************************************************/ 2418/*****************************************************************************/
2419/* singly-linked list management, used when the expected list length is short */
2043 2420
2044void inline_size 2421inline_size void
2045wlist_add (WL *head, WL elem) 2422wlist_add (WL *head, WL elem)
2046{ 2423{
2047 elem->next = *head; 2424 elem->next = *head;
2048 *head = elem; 2425 *head = elem;
2049} 2426}
2050 2427
2051void inline_size 2428inline_size void
2052wlist_del (WL *head, WL elem) 2429wlist_del (WL *head, WL elem)
2053{ 2430{
2054 while (*head) 2431 while (*head)
2055 { 2432 {
2056 if (*head == elem) 2433 if (expect_true (*head == elem))
2057 { 2434 {
2058 *head = elem->next; 2435 *head = elem->next;
2059 return; 2436 break;
2060 } 2437 }
2061 2438
2062 head = &(*head)->next; 2439 head = &(*head)->next;
2063 } 2440 }
2064} 2441}
2065 2442
2066void inline_speed 2443/* internal, faster, version of ev_clear_pending */
2444inline_speed void
2067clear_pending (EV_P_ W w) 2445clear_pending (EV_P_ W w)
2068{ 2446{
2069 if (w->pending) 2447 if (w->pending)
2070 { 2448 {
2071 pendings [ABSPRI (w)][w->pending - 1].w = 0; 2449 pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w;
2072 w->pending = 0; 2450 w->pending = 0;
2073 } 2451 }
2074} 2452}
2075 2453
2076int 2454int
… …
2080 int pending = w_->pending; 2458 int pending = w_->pending;
2081 2459
2082 if (expect_true (pending)) 2460 if (expect_true (pending))
2083 { 2461 {
2084 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 2462 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
2463 p->w = (W)&pending_w;
2085 w_->pending = 0; 2464 w_->pending = 0;
2086 p->w = 0;
2087 return p->events; 2465 return p->events;
2088 } 2466 }
2089 else 2467 else
2090 return 0; 2468 return 0;
2091} 2469}
2092 2470
2093void inline_size 2471inline_size void
2094pri_adjust (EV_P_ W w) 2472pri_adjust (EV_P_ W w)
2095{ 2473{
2096 int pri = w->priority; 2474 int pri = ev_priority (w);
2097 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2475 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2098 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2476 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2099 w->priority = pri; 2477 ev_set_priority (w, pri);
2100} 2478}
2101 2479
2102void inline_speed 2480inline_speed void
2103ev_start (EV_P_ W w, int active) 2481ev_start (EV_P_ W w, int active)
2104{ 2482{
2105 pri_adjust (EV_A_ w); 2483 pri_adjust (EV_A_ w);
2106 w->active = active; 2484 w->active = active;
2107 ev_ref (EV_A); 2485 ev_ref (EV_A);
2108} 2486}
2109 2487
2110void inline_size 2488inline_size void
2111ev_stop (EV_P_ W w) 2489ev_stop (EV_P_ W w)
2112{ 2490{
2113 ev_unref (EV_A); 2491 ev_unref (EV_A);
2114 w->active = 0; 2492 w->active = 0;
2115} 2493}
… …
2122 int fd = w->fd; 2500 int fd = w->fd;
2123 2501
2124 if (expect_false (ev_is_active (w))) 2502 if (expect_false (ev_is_active (w)))
2125 return; 2503 return;
2126 2504
2127 assert (("ev_io_start called with negative fd", fd >= 0)); 2505 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2506 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2128 2507
2129 EV_FREQUENT_CHECK; 2508 EV_FREQUENT_CHECK;
2130 2509
2131 ev_start (EV_A_ (W)w, 1); 2510 ev_start (EV_A_ (W)w, 1);
2132 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 2511 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2133 wlist_add (&anfds[fd].head, (WL)w); 2512 wlist_add (&anfds[fd].head, (WL)w);
2134 2513
2135 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); 2514 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2136 w->events &= ~EV_IOFDSET; 2515 w->events &= ~EV__IOFDSET;
2137 2516
2138 EV_FREQUENT_CHECK; 2517 EV_FREQUENT_CHECK;
2139} 2518}
2140 2519
2141void noinline 2520void noinline
… …
2143{ 2522{
2144 clear_pending (EV_A_ (W)w); 2523 clear_pending (EV_A_ (W)w);
2145 if (expect_false (!ev_is_active (w))) 2524 if (expect_false (!ev_is_active (w)))
2146 return; 2525 return;
2147 2526
2148 assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 2527 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
2149 2528
2150 EV_FREQUENT_CHECK; 2529 EV_FREQUENT_CHECK;
2151 2530
2152 wlist_del (&anfds[w->fd].head, (WL)w); 2531 wlist_del (&anfds[w->fd].head, (WL)w);
2153 ev_stop (EV_A_ (W)w); 2532 ev_stop (EV_A_ (W)w);
… …
2163 if (expect_false (ev_is_active (w))) 2542 if (expect_false (ev_is_active (w)))
2164 return; 2543 return;
2165 2544
2166 ev_at (w) += mn_now; 2545 ev_at (w) += mn_now;
2167 2546
2168 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 2547 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
2169 2548
2170 EV_FREQUENT_CHECK; 2549 EV_FREQUENT_CHECK;
2171 2550
2172 ++timercnt; 2551 ++timercnt;
2173 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 2552 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
… …
2176 ANHE_at_cache (timers [ev_active (w)]); 2555 ANHE_at_cache (timers [ev_active (w)]);
2177 upheap (timers, ev_active (w)); 2556 upheap (timers, ev_active (w));
2178 2557
2179 EV_FREQUENT_CHECK; 2558 EV_FREQUENT_CHECK;
2180 2559
2181 /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 2560 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2182} 2561}
2183 2562
2184void noinline 2563void noinline
2185ev_timer_stop (EV_P_ ev_timer *w) 2564ev_timer_stop (EV_P_ ev_timer *w)
2186{ 2565{
… …
2191 EV_FREQUENT_CHECK; 2570 EV_FREQUENT_CHECK;
2192 2571
2193 { 2572 {
2194 int active = ev_active (w); 2573 int active = ev_active (w);
2195 2574
2196 assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 2575 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
2197 2576
2198 --timercnt; 2577 --timercnt;
2199 2578
2200 if (expect_true (active < timercnt + HEAP0)) 2579 if (expect_true (active < timercnt + HEAP0))
2201 { 2580 {
… …
2234 } 2613 }
2235 2614
2236 EV_FREQUENT_CHECK; 2615 EV_FREQUENT_CHECK;
2237} 2616}
2238 2617
2618ev_tstamp
2619ev_timer_remaining (EV_P_ ev_timer *w)
2620{
2621 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2622}
2623
2239#if EV_PERIODIC_ENABLE 2624#if EV_PERIODIC_ENABLE
2240void noinline 2625void noinline
2241ev_periodic_start (EV_P_ ev_periodic *w) 2626ev_periodic_start (EV_P_ ev_periodic *w)
2242{ 2627{
2243 if (expect_false (ev_is_active (w))) 2628 if (expect_false (ev_is_active (w)))
… …
2245 2630
2246 if (w->reschedule_cb) 2631 if (w->reschedule_cb)
2247 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2632 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2248 else if (w->interval) 2633 else if (w->interval)
2249 { 2634 {
2250 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 2635 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2251 /* this formula differs from the one in periodic_reify because we do not always round up */ 2636 /* this formula differs from the one in periodic_reify because we do not always round up */
2252 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2637 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2253 } 2638 }
2254 else 2639 else
2255 ev_at (w) = w->offset; 2640 ev_at (w) = w->offset;
… …
2263 ANHE_at_cache (periodics [ev_active (w)]); 2648 ANHE_at_cache (periodics [ev_active (w)]);
2264 upheap (periodics, ev_active (w)); 2649 upheap (periodics, ev_active (w));
2265 2650
2266 EV_FREQUENT_CHECK; 2651 EV_FREQUENT_CHECK;
2267 2652
2268 /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 2653 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2269} 2654}
2270 2655
2271void noinline 2656void noinline
2272ev_periodic_stop (EV_P_ ev_periodic *w) 2657ev_periodic_stop (EV_P_ ev_periodic *w)
2273{ 2658{
… …
2278 EV_FREQUENT_CHECK; 2663 EV_FREQUENT_CHECK;
2279 2664
2280 { 2665 {
2281 int active = ev_active (w); 2666 int active = ev_active (w);
2282 2667
2283 assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 2668 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
2284 2669
2285 --periodiccnt; 2670 --periodiccnt;
2286 2671
2287 if (expect_true (active < periodiccnt + HEAP0)) 2672 if (expect_true (active < periodiccnt + HEAP0))
2288 { 2673 {
… …
2310#endif 2695#endif
2311 2696
2312void noinline 2697void noinline
2313ev_signal_start (EV_P_ ev_signal *w) 2698ev_signal_start (EV_P_ ev_signal *w)
2314{ 2699{
2315#if EV_MULTIPLICITY
2316 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2317#endif
2318 if (expect_false (ev_is_active (w))) 2700 if (expect_false (ev_is_active (w)))
2319 return; 2701 return;
2320 2702
2321 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 2703 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2322 2704
2323 evpipe_init (EV_A); 2705#if EV_MULTIPLICITY
2706 assert (("libev: a signal must not be attached to two different loops",
2707 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2324 2708
2325 EV_FREQUENT_CHECK; 2709 signals [w->signum - 1].loop = EV_A;
2710#endif
2326 2711
2712 EV_FREQUENT_CHECK;
2713
2714#if EV_USE_SIGNALFD
2715 if (sigfd == -2)
2327 { 2716 {
2328#ifndef _WIN32 2717 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2329 sigset_t full, prev; 2718 if (sigfd < 0 && errno == EINVAL)
2330 sigfillset (&full); 2719 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2331 sigprocmask (SIG_SETMASK, &full, &prev);
2332#endif
2333 2720
2334 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 2721 if (sigfd >= 0)
2722 {
2723 fd_intern (sigfd); /* doing it twice will not hurt */
2335 2724
2336#ifndef _WIN32 2725 sigemptyset (&sigfd_set);
2337 sigprocmask (SIG_SETMASK, &prev, 0); 2726
2338#endif 2727 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
2728 ev_set_priority (&sigfd_w, EV_MAXPRI);
2729 ev_io_start (EV_A_ &sigfd_w);
2730 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
2731 }
2339 } 2732 }
2733
2734 if (sigfd >= 0)
2735 {
2736 /* TODO: check .head */
2737 sigaddset (&sigfd_set, w->signum);
2738 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
2739
2740 signalfd (sigfd, &sigfd_set, 0);
2741 }
2742#endif
2340 2743
2341 ev_start (EV_A_ (W)w, 1); 2744 ev_start (EV_A_ (W)w, 1);
2342 wlist_add (&signals [w->signum - 1].head, (WL)w); 2745 wlist_add (&signals [w->signum - 1].head, (WL)w);
2343 2746
2344 if (!((WL)w)->next) 2747 if (!((WL)w)->next)
2748# if EV_USE_SIGNALFD
2749 if (sigfd < 0) /*TODO*/
2750# endif
2345 { 2751 {
2346#if _WIN32 2752# if _WIN32
2753 evpipe_init (EV_A);
2754
2347 signal (w->signum, ev_sighandler); 2755 signal (w->signum, ev_sighandler);
2348#else 2756# else
2349 struct sigaction sa; 2757 struct sigaction sa;
2758
2759 evpipe_init (EV_A);
2760
2350 sa.sa_handler = ev_sighandler; 2761 sa.sa_handler = ev_sighandler;
2351 sigfillset (&sa.sa_mask); 2762 sigfillset (&sa.sa_mask);
2352 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2763 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2353 sigaction (w->signum, &sa, 0); 2764 sigaction (w->signum, &sa, 0);
2765
2766 sigemptyset (&sa.sa_mask);
2767 sigaddset (&sa.sa_mask, w->signum);
2768 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2354#endif 2769#endif
2355 } 2770 }
2356 2771
2357 EV_FREQUENT_CHECK; 2772 EV_FREQUENT_CHECK;
2358} 2773}
2359 2774
2360void noinline 2775void noinline
… …
2368 2783
2369 wlist_del (&signals [w->signum - 1].head, (WL)w); 2784 wlist_del (&signals [w->signum - 1].head, (WL)w);
2370 ev_stop (EV_A_ (W)w); 2785 ev_stop (EV_A_ (W)w);
2371 2786
2372 if (!signals [w->signum - 1].head) 2787 if (!signals [w->signum - 1].head)
2788 {
2789#if EV_MULTIPLICITY
2790 signals [w->signum - 1].loop = 0; /* unattach from signal */
2791#endif
2792#if EV_USE_SIGNALFD
2793 if (sigfd >= 0)
2794 {
2795 sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D
2796 sigdelset (&sigfd_set, w->signum);
2797 signalfd (sigfd, &sigfd_set, 0);
2798 sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D
2799 /*TODO: maybe unblock signal? */
2800 }
2801 else
2802#endif
2373 signal (w->signum, SIG_DFL); 2803 signal (w->signum, SIG_DFL);
2804 }
2374 2805
2375 EV_FREQUENT_CHECK; 2806 EV_FREQUENT_CHECK;
2376} 2807}
2377 2808
2378void 2809void
2379ev_child_start (EV_P_ ev_child *w) 2810ev_child_start (EV_P_ ev_child *w)
2380{ 2811{
2381#if EV_MULTIPLICITY 2812#if EV_MULTIPLICITY
2382 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2813 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2383#endif 2814#endif
2384 if (expect_false (ev_is_active (w))) 2815 if (expect_false (ev_is_active (w)))
2385 return; 2816 return;
2386 2817
2387 EV_FREQUENT_CHECK; 2818 EV_FREQUENT_CHECK;
… …
2412# ifdef _WIN32 2843# ifdef _WIN32
2413# undef lstat 2844# undef lstat
2414# define lstat(a,b) _stati64 (a,b) 2845# define lstat(a,b) _stati64 (a,b)
2415# endif 2846# endif
2416 2847
2417#define DEF_STAT_INTERVAL 5.0074891 2848#define DEF_STAT_INTERVAL 5.0074891
2849#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2418#define MIN_STAT_INTERVAL 0.1074891 2850#define MIN_STAT_INTERVAL 0.1074891
2419 2851
2420static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 2852static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2421 2853
2422#if EV_USE_INOTIFY 2854#if EV_USE_INOTIFY
2423# define EV_INOTIFY_BUFSIZE 8192 2855# define EV_INOTIFY_BUFSIZE 8192
… …
2425static void noinline 2857static void noinline
2426infy_add (EV_P_ ev_stat *w) 2858infy_add (EV_P_ ev_stat *w)
2427{ 2859{
2428 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); 2860 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);
2429 2861
2430 if (w->wd < 0) 2862 if (w->wd >= 0)
2863 {
2864 struct statfs sfs;
2865
2866 /* now local changes will be tracked by inotify, but remote changes won't */
2867 /* unless the filesystem is known to be local, we therefore still poll */
2868 /* also do poll on <2.6.25, but with normal frequency */
2869
2870 if (!fs_2625)
2871 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2872 else if (!statfs (w->path, &sfs)
2873 && (sfs.f_type == 0x1373 /* devfs */
2874 || sfs.f_type == 0xEF53 /* ext2/3 */
2875 || sfs.f_type == 0x3153464a /* jfs */
2876 || sfs.f_type == 0x52654973 /* reiser3 */
2877 || sfs.f_type == 0x01021994 /* tempfs */
2878 || sfs.f_type == 0x58465342 /* xfs */))
2879 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2880 else
2881 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2431 { 2882 }
2432 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ 2883 else
2884 {
2885 /* can't use inotify, continue to stat */
2886 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2433 2887
2434 /* monitor some parent directory for speedup hints */ 2888 /* if path is not there, monitor some parent directory for speedup hints */
2435 /* note that exceeding the hardcoded limit is not a correctness issue, */ 2889 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2436 /* but an efficiency issue only */ 2890 /* but an efficiency issue only */
2437 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 2891 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2438 { 2892 {
2439 char path [4096]; 2893 char path [4096];
2440 strcpy (path, w->path); 2894 strcpy (path, w->path);
… …
2444 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF 2898 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
2445 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); 2899 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
2446 2900
2447 char *pend = strrchr (path, '/'); 2901 char *pend = strrchr (path, '/');
2448 2902
2449 if (!pend) 2903 if (!pend || pend == path)
2450 break; /* whoops, no '/', complain to your admin */ 2904 break;
2451 2905
2452 *pend = 0; 2906 *pend = 0;
2453 w->wd = inotify_add_watch (fs_fd, path, mask); 2907 w->wd = inotify_add_watch (fs_fd, path, mask);
2454 } 2908 }
2455 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 2909 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2456 } 2910 }
2457 } 2911 }
2458 else
2459 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
2460 2912
2461 if (w->wd >= 0) 2913 if (w->wd >= 0)
2462 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 2914 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2915
2916 /* now re-arm timer, if required */
2917 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2918 ev_timer_again (EV_A_ &w->timer);
2919 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2463} 2920}
2464 2921
2465static void noinline 2922static void noinline
2466infy_del (EV_P_ ev_stat *w) 2923infy_del (EV_P_ ev_stat *w)
2467{ 2924{
… …
2481 2938
2482static void noinline 2939static void noinline
2483infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 2940infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2484{ 2941{
2485 if (slot < 0) 2942 if (slot < 0)
2486 /* overflow, need to check for all hahs slots */ 2943 /* overflow, need to check for all hash slots */
2487 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 2944 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2488 infy_wd (EV_A_ slot, wd, ev); 2945 infy_wd (EV_A_ slot, wd, ev);
2489 else 2946 else
2490 { 2947 {
2491 WL w_; 2948 WL w_;
… …
2497 2954
2498 if (w->wd == wd || wd == -1) 2955 if (w->wd == wd || wd == -1)
2499 { 2956 {
2500 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 2957 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2501 { 2958 {
2959 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
2502 w->wd = -1; 2960 w->wd = -1;
2503 infy_add (EV_A_ w); /* re-add, no matter what */ 2961 infy_add (EV_A_ w); /* re-add, no matter what */
2504 } 2962 }
2505 2963
2506 stat_timer_cb (EV_A_ &w->timer, 0); 2964 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2519 2977
2520 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 2978 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2521 infy_wd (EV_A_ ev->wd, ev->wd, ev); 2979 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2522} 2980}
2523 2981
2524void inline_size 2982inline_size void
2983check_2625 (EV_P)
2984{
2985 /* kernels < 2.6.25 are borked
2986 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2987 */
2988 struct utsname buf;
2989 int major, minor, micro;
2990
2991 if (uname (&buf))
2992 return;
2993
2994 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2995 return;
2996
2997 if (major < 2
2998 || (major == 2 && minor < 6)
2999 || (major == 2 && minor == 6 && micro < 25))
3000 return;
3001
3002 fs_2625 = 1;
3003}
3004
3005inline_size int
3006infy_newfd (void)
3007{
3008#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3009 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3010 if (fd >= 0)
3011 return fd;
3012#endif
3013 return inotify_init ();
3014}
3015
3016inline_size void
2525infy_init (EV_P) 3017infy_init (EV_P)
2526{ 3018{
2527 if (fs_fd != -2) 3019 if (fs_fd != -2)
2528 return; 3020 return;
2529 3021
3022 fs_fd = -1;
3023
3024 check_2625 (EV_A);
3025
2530 fs_fd = inotify_init (); 3026 fs_fd = infy_newfd ();
2531 3027
2532 if (fs_fd >= 0) 3028 if (fs_fd >= 0)
2533 { 3029 {
3030 fd_intern (fs_fd);
2534 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3031 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2535 ev_set_priority (&fs_w, EV_MAXPRI); 3032 ev_set_priority (&fs_w, EV_MAXPRI);
2536 ev_io_start (EV_A_ &fs_w); 3033 ev_io_start (EV_A_ &fs_w);
3034 ev_unref (EV_A);
2537 } 3035 }
2538} 3036}
2539 3037
2540void inline_size 3038inline_size void
2541infy_fork (EV_P) 3039infy_fork (EV_P)
2542{ 3040{
2543 int slot; 3041 int slot;
2544 3042
2545 if (fs_fd < 0) 3043 if (fs_fd < 0)
2546 return; 3044 return;
2547 3045
3046 ev_ref (EV_A);
3047 ev_io_stop (EV_A_ &fs_w);
2548 close (fs_fd); 3048 close (fs_fd);
2549 fs_fd = inotify_init (); 3049 fs_fd = infy_newfd ();
3050
3051 if (fs_fd >= 0)
3052 {
3053 fd_intern (fs_fd);
3054 ev_io_set (&fs_w, fs_fd, EV_READ);
3055 ev_io_start (EV_A_ &fs_w);
3056 ev_unref (EV_A);
3057 }
2550 3058
2551 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3059 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2552 { 3060 {
2553 WL w_ = fs_hash [slot].head; 3061 WL w_ = fs_hash [slot].head;
2554 fs_hash [slot].head = 0; 3062 fs_hash [slot].head = 0;
… …
2561 w->wd = -1; 3069 w->wd = -1;
2562 3070
2563 if (fs_fd >= 0) 3071 if (fs_fd >= 0)
2564 infy_add (EV_A_ w); /* re-add, no matter what */ 3072 infy_add (EV_A_ w); /* re-add, no matter what */
2565 else 3073 else
3074 {
3075 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3076 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2566 ev_timer_start (EV_A_ &w->timer); 3077 ev_timer_again (EV_A_ &w->timer);
3078 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3079 }
2567 } 3080 }
2568
2569 } 3081 }
2570} 3082}
2571 3083
3084#endif
3085
3086#ifdef _WIN32
3087# define EV_LSTAT(p,b) _stati64 (p, b)
3088#else
3089# define EV_LSTAT(p,b) lstat (p, b)
2572#endif 3090#endif
2573 3091
2574void 3092void
2575ev_stat_stat (EV_P_ ev_stat *w) 3093ev_stat_stat (EV_P_ ev_stat *w)
2576{ 3094{
… …
2603 || w->prev.st_atime != w->attr.st_atime 3121 || w->prev.st_atime != w->attr.st_atime
2604 || w->prev.st_mtime != w->attr.st_mtime 3122 || w->prev.st_mtime != w->attr.st_mtime
2605 || w->prev.st_ctime != w->attr.st_ctime 3123 || w->prev.st_ctime != w->attr.st_ctime
2606 ) { 3124 ) {
2607 #if EV_USE_INOTIFY 3125 #if EV_USE_INOTIFY
3126 if (fs_fd >= 0)
3127 {
2608 infy_del (EV_A_ w); 3128 infy_del (EV_A_ w);
2609 infy_add (EV_A_ w); 3129 infy_add (EV_A_ w);
2610 ev_stat_stat (EV_A_ w); /* avoid race... */ 3130 ev_stat_stat (EV_A_ w); /* avoid race... */
3131 }
2611 #endif 3132 #endif
2612 3133
2613 ev_feed_event (EV_A_ w, EV_STAT); 3134 ev_feed_event (EV_A_ w, EV_STAT);
2614 } 3135 }
2615} 3136}
… …
2618ev_stat_start (EV_P_ ev_stat *w) 3139ev_stat_start (EV_P_ ev_stat *w)
2619{ 3140{
2620 if (expect_false (ev_is_active (w))) 3141 if (expect_false (ev_is_active (w)))
2621 return; 3142 return;
2622 3143
2623 /* since we use memcmp, we need to clear any padding data etc. */
2624 memset (&w->prev, 0, sizeof (ev_statdata));
2625 memset (&w->attr, 0, sizeof (ev_statdata));
2626
2627 ev_stat_stat (EV_A_ w); 3144 ev_stat_stat (EV_A_ w);
2628 3145
3146 if (w->interval < MIN_STAT_INTERVAL && w->interval)
2629 if (w->interval < MIN_STAT_INTERVAL) 3147 w->interval = MIN_STAT_INTERVAL;
2630 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2631 3148
2632 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); 3149 ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL);
2633 ev_set_priority (&w->timer, ev_priority (w)); 3150 ev_set_priority (&w->timer, ev_priority (w));
2634 3151
2635#if EV_USE_INOTIFY 3152#if EV_USE_INOTIFY
2636 infy_init (EV_A); 3153 infy_init (EV_A);
2637 3154
2638 if (fs_fd >= 0) 3155 if (fs_fd >= 0)
2639 infy_add (EV_A_ w); 3156 infy_add (EV_A_ w);
2640 else 3157 else
2641#endif 3158#endif
3159 {
2642 ev_timer_start (EV_A_ &w->timer); 3160 ev_timer_again (EV_A_ &w->timer);
3161 ev_unref (EV_A);
3162 }
2643 3163
2644 ev_start (EV_A_ (W)w, 1); 3164 ev_start (EV_A_ (W)w, 1);
2645 3165
2646 EV_FREQUENT_CHECK; 3166 EV_FREQUENT_CHECK;
2647} 3167}
… …
2656 EV_FREQUENT_CHECK; 3176 EV_FREQUENT_CHECK;
2657 3177
2658#if EV_USE_INOTIFY 3178#if EV_USE_INOTIFY
2659 infy_del (EV_A_ w); 3179 infy_del (EV_A_ w);
2660#endif 3180#endif
3181
3182 if (ev_is_active (&w->timer))
3183 {
3184 ev_ref (EV_A);
2661 ev_timer_stop (EV_A_ &w->timer); 3185 ev_timer_stop (EV_A_ &w->timer);
3186 }
2662 3187
2663 ev_stop (EV_A_ (W)w); 3188 ev_stop (EV_A_ (W)w);
2664 3189
2665 EV_FREQUENT_CHECK; 3190 EV_FREQUENT_CHECK;
2666} 3191}
… …
2807embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3332embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2808{ 3333{
2809 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3334 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2810 3335
2811 { 3336 {
2812 struct ev_loop *loop = w->other; 3337 EV_P = w->other;
2813 3338
2814 while (fdchangecnt) 3339 while (fdchangecnt)
2815 { 3340 {
2816 fd_reify (EV_A); 3341 fd_reify (EV_A);
2817 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3342 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2818 } 3343 }
2819 } 3344 }
2820} 3345}
2821 3346
3347static void
3348embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
3349{
3350 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3351
3352 ev_embed_stop (EV_A_ w);
3353
3354 {
3355 EV_P = w->other;
3356
3357 ev_loop_fork (EV_A);
3358 ev_loop (EV_A_ EVLOOP_NONBLOCK);
3359 }
3360
3361 ev_embed_start (EV_A_ w);
3362}
3363
2822#if 0 3364#if 0
2823static void 3365static void
2824embed_idle_cb (EV_P_ ev_idle *idle, int revents) 3366embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2825{ 3367{
2826 ev_idle_stop (EV_A_ idle); 3368 ev_idle_stop (EV_A_ idle);
… …
2832{ 3374{
2833 if (expect_false (ev_is_active (w))) 3375 if (expect_false (ev_is_active (w)))
2834 return; 3376 return;
2835 3377
2836 { 3378 {
2837 struct ev_loop *loop = w->other; 3379 EV_P = w->other;
2838 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3380 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2839 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3381 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2840 } 3382 }
2841 3383
2842 EV_FREQUENT_CHECK; 3384 EV_FREQUENT_CHECK;
2843 3385
… …
2846 3388
2847 ev_prepare_init (&w->prepare, embed_prepare_cb); 3389 ev_prepare_init (&w->prepare, embed_prepare_cb);
2848 ev_set_priority (&w->prepare, EV_MINPRI); 3390 ev_set_priority (&w->prepare, EV_MINPRI);
2849 ev_prepare_start (EV_A_ &w->prepare); 3391 ev_prepare_start (EV_A_ &w->prepare);
2850 3392
3393 ev_fork_init (&w->fork, embed_fork_cb);
3394 ev_fork_start (EV_A_ &w->fork);
3395
2851 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 3396 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2852 3397
2853 ev_start (EV_A_ (W)w, 1); 3398 ev_start (EV_A_ (W)w, 1);
2854 3399
2855 EV_FREQUENT_CHECK; 3400 EV_FREQUENT_CHECK;
… …
2862 if (expect_false (!ev_is_active (w))) 3407 if (expect_false (!ev_is_active (w)))
2863 return; 3408 return;
2864 3409
2865 EV_FREQUENT_CHECK; 3410 EV_FREQUENT_CHECK;
2866 3411
2867 ev_io_stop (EV_A_ &w->io); 3412 ev_io_stop (EV_A_ &w->io);
2868 ev_prepare_stop (EV_A_ &w->prepare); 3413 ev_prepare_stop (EV_A_ &w->prepare);
2869 3414 ev_fork_stop (EV_A_ &w->fork);
2870 ev_stop (EV_A_ (W)w);
2871 3415
2872 EV_FREQUENT_CHECK; 3416 EV_FREQUENT_CHECK;
2873} 3417}
2874#endif 3418#endif
2875 3419
… …
2952 3496
2953void 3497void
2954ev_async_send (EV_P_ ev_async *w) 3498ev_async_send (EV_P_ ev_async *w)
2955{ 3499{
2956 w->sent = 1; 3500 w->sent = 1;
2957 evpipe_write (EV_A_ &gotasync); 3501 evpipe_write (EV_A_ &async_pending);
2958} 3502}
2959#endif 3503#endif
2960 3504
2961/*****************************************************************************/ 3505/*****************************************************************************/
2962 3506
… …
2972once_cb (EV_P_ struct ev_once *once, int revents) 3516once_cb (EV_P_ struct ev_once *once, int revents)
2973{ 3517{
2974 void (*cb)(int revents, void *arg) = once->cb; 3518 void (*cb)(int revents, void *arg) = once->cb;
2975 void *arg = once->arg; 3519 void *arg = once->arg;
2976 3520
2977 ev_io_stop (EV_A_ &once->io); 3521 ev_io_stop (EV_A_ &once->io);
2978 ev_timer_stop (EV_A_ &once->to); 3522 ev_timer_stop (EV_A_ &once->to);
2979 ev_free (once); 3523 ev_free (once);
2980 3524
2981 cb (revents, arg); 3525 cb (revents, arg);
2982} 3526}
2983 3527
2984static void 3528static void
2985once_cb_io (EV_P_ ev_io *w, int revents) 3529once_cb_io (EV_P_ ev_io *w, int revents)
2986{ 3530{
2987 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 3531 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io));
3532
3533 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to));
2988} 3534}
2989 3535
2990static void 3536static void
2991once_cb_to (EV_P_ ev_timer *w, int revents) 3537once_cb_to (EV_P_ ev_timer *w, int revents)
2992{ 3538{
2993 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 3539 struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to));
3540
3541 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
2994} 3542}
2995 3543
2996void 3544void
2997ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 3545ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
2998{ 3546{
… …
3020 ev_timer_set (&once->to, timeout, 0.); 3568 ev_timer_set (&once->to, timeout, 0.);
3021 ev_timer_start (EV_A_ &once->to); 3569 ev_timer_start (EV_A_ &once->to);
3022 } 3570 }
3023} 3571}
3024 3572
3573/*****************************************************************************/
3574
3575#if EV_WALK_ENABLE
3576void
3577ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3578{
3579 int i, j;
3580 ev_watcher_list *wl, *wn;
3581
3582 if (types & (EV_IO | EV_EMBED))
3583 for (i = 0; i < anfdmax; ++i)
3584 for (wl = anfds [i].head; wl; )
3585 {
3586 wn = wl->next;
3587
3588#if EV_EMBED_ENABLE
3589 if (ev_cb ((ev_io *)wl) == embed_io_cb)
3590 {
3591 if (types & EV_EMBED)
3592 cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io));
3593 }
3594 else
3595#endif
3596#if EV_USE_INOTIFY
3597 if (ev_cb ((ev_io *)wl) == infy_cb)
3598 ;
3599 else
3600#endif
3601 if ((ev_io *)wl != &pipe_w)
3602 if (types & EV_IO)
3603 cb (EV_A_ EV_IO, wl);
3604
3605 wl = wn;
3606 }
3607
3608 if (types & (EV_TIMER | EV_STAT))
3609 for (i = timercnt + HEAP0; i-- > HEAP0; )
3610#if EV_STAT_ENABLE
3611 /*TODO: timer is not always active*/
3612 if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb)
3613 {
3614 if (types & EV_STAT)
3615 cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer));
3616 }
3617 else
3618#endif
3619 if (types & EV_TIMER)
3620 cb (EV_A_ EV_TIMER, ANHE_w (timers [i]));
3621
3622#if EV_PERIODIC_ENABLE
3623 if (types & EV_PERIODIC)
3624 for (i = periodiccnt + HEAP0; i-- > HEAP0; )
3625 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3626#endif
3627
3628#if EV_IDLE_ENABLE
3629 if (types & EV_IDLE)
3630 for (j = NUMPRI; i--; )
3631 for (i = idlecnt [j]; i--; )
3632 cb (EV_A_ EV_IDLE, idles [j][i]);
3633#endif
3634
3635#if EV_FORK_ENABLE
3636 if (types & EV_FORK)
3637 for (i = forkcnt; i--; )
3638 if (ev_cb (forks [i]) != embed_fork_cb)
3639 cb (EV_A_ EV_FORK, forks [i]);
3640#endif
3641
3642#if EV_ASYNC_ENABLE
3643 if (types & EV_ASYNC)
3644 for (i = asynccnt; i--; )
3645 cb (EV_A_ EV_ASYNC, asyncs [i]);
3646#endif
3647
3648 if (types & EV_PREPARE)
3649 for (i = preparecnt; i--; )
3650#if EV_EMBED_ENABLE
3651 if (ev_cb (prepares [i]) != embed_prepare_cb)
3652#endif
3653 cb (EV_A_ EV_PREPARE, prepares [i]);
3654
3655 if (types & EV_CHECK)
3656 for (i = checkcnt; i--; )
3657 cb (EV_A_ EV_CHECK, checks [i]);
3658
3659 if (types & EV_SIGNAL)
3660 for (i = 0; i < EV_NSIG - 1; ++i)
3661 for (wl = signals [i].head; wl; )
3662 {
3663 wn = wl->next;
3664 cb (EV_A_ EV_SIGNAL, wl);
3665 wl = wn;
3666 }
3667
3668 if (types & EV_CHILD)
3669 for (i = EV_PID_HASHSIZE; i--; )
3670 for (wl = childs [i]; wl; )
3671 {
3672 wn = wl->next;
3673 cb (EV_A_ EV_CHILD, wl);
3674 wl = wn;
3675 }
3676/* EV_STAT 0x00001000 /* stat data changed */
3677/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3678}
3679#endif
3680
3025#if EV_MULTIPLICITY 3681#if EV_MULTIPLICITY
3026 #include "ev_wrap.h" 3682 #include "ev_wrap.h"
3027#endif 3683#endif
3028 3684
3029#ifdef __cplusplus 3685#ifdef __cplusplus

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines